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@@ -0,0 +1,3 @@
|
||||
[submodule "libuev"]
|
||||
path = libuev
|
||||
url = https://github.com/troglobit/libuev.git
|
||||
+21
@@ -0,0 +1,21 @@
|
||||
# Travis CI integration -- https://travis-ci.org/troglobit/finit
|
||||
language: c
|
||||
compiler:
|
||||
- gcc
|
||||
|
||||
env:
|
||||
global:
|
||||
# The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
|
||||
# via the "travis encrypt" command using the project repo's public key
|
||||
- secure: "eOiuHs02lG2Uv146K9dMqucGTWUJFEhpz1oAtwe+kPrRXsXWc20hYMO+DSpMgD05vSvNeQA6p7h7LdRFQ+/g/Obj27TsOE+RKkUvRAtdwzxnKVyii9C/nmML8cFw7rIA0VS8O9mAkVYeyDxNDupBp3e9DPCibhKPvqCvioTnyy4="
|
||||
|
||||
addons:
|
||||
coverity_scan:
|
||||
project:
|
||||
name: "troglobit/finit"
|
||||
description: "finit | Fast & Extensible init for Linux"
|
||||
notification_email: troglobit@gmail.com
|
||||
build_command: "make"
|
||||
branch_pattern: dev
|
||||
|
||||
script: make
|
||||
+320
@@ -0,0 +1,320 @@
|
||||
Change Log
|
||||
==========
|
||||
|
||||
All notable changes to the project are documented in this file.
|
||||
|
||||
|
||||
[1.12] - 2015-03-04
|
||||
-------------------
|
||||
|
||||
The inetd release.
|
||||
|
||||
### Changes
|
||||
* Add support for built-in inetd super server -- launch services on
|
||||
demand. Supports filtering per interface and custom Inet ports.
|
||||
* Upgrade to [libuEv] v1.1.0 to better handle error conditions.
|
||||
* Allow mixed case config directives in `finit.conf`
|
||||
* Add support for RFC 868 (rdate) time plugin, start as inetd service.
|
||||
* Load plugins before parsing `finit.conf`, this makes it possible to
|
||||
extend finit even with configuration commands. E.g., the `time.so`
|
||||
plugin must be loaded for the `inetd time/tcp internal` service to be
|
||||
accepted when parsing `finit.conf`.
|
||||
* Slight change in TTY fallback behavior, if no TTY is listed in the
|
||||
system `finit.conf` first inspect the `console` setting and only if
|
||||
that too is unset fall back to `/bin/sh`
|
||||
* When falling back to the `console` TTY or `/bin/sh`, finit now marks
|
||||
this fallback as console. Should improve usability in some use cases.
|
||||
|
||||
### Fixes
|
||||
* Revert "Use vfork() instead of fork() before exec()" from v1.11. It
|
||||
turned out to not work so well after all. For instance, launching
|
||||
TTYs in a background process completely blocked inetd services from
|
||||
even starting up listening sockets ... proper fork seems to work fine
|
||||
though. This is the casue for *yanking* the [1.11] release, below.
|
||||
* Trap segfaults caused by external plugins/callbacks in a sub-process.
|
||||
This prevents a single programming mistake in by a 3rd party developer
|
||||
from taking down the entire system.
|
||||
* Fix Coverity CID 56281: dlopen() resource leak by storing the pointer.
|
||||
For the time being we do not support unloading plugins.
|
||||
* Set hostname early, so bootstrap processes like syslog can use it.
|
||||
* Only restart *lost daemons* when recovering from a SIGSTOP/norespawn.
|
||||
|
||||
|
||||
[1.11] - 2015-01-24 [YANKED]
|
||||
----------------------------
|
||||
|
||||
The [libuEv] release.
|
||||
|
||||
**Note:** This release has been *yanked* from distribution due to a
|
||||
regression in launching background processes and TTY's. Fixed in
|
||||
Finit v[1.12].
|
||||
|
||||
### Changes
|
||||
* Now using the asynchronous libuEv library for handling all events:
|
||||
signals, timers and listening to sockets or file descriptors.
|
||||
* Rename NEWS.md --> CHANGELOG.md, with symlinks for `make install`
|
||||
* Attempt to align with http://keepachangelog.com/ for this file.
|
||||
* Travis CI now only invokes Coverity Scan from the 'dev' branch. This
|
||||
means that all development, except documentation updates, must go into
|
||||
that branch.
|
||||
|
||||
### Fixes
|
||||
* Fix bug with finit dying when no `tty` is defined in `finit.conf`, now
|
||||
even the fallback shell has control over its TTY, see fix in GIT
|
||||
commit [dea3ae8] for this.
|
||||
|
||||
|
||||
[1.10] - 2014-11-27
|
||||
-------------------
|
||||
Major bug fix release.
|
||||
|
||||
### Changes
|
||||
* Project now relies on static code analysis from Coverity, so this
|
||||
release contains many serious bug fixes.
|
||||
* Convert to use Markdown for README, NEWS and TODO.
|
||||
* Serious update to README and slight pruning of finished TODO items.
|
||||
|
||||
### Fixes
|
||||
* Fix serious file descriptor and memory leaks in the following
|
||||
functions. In particular the leaks in `run_interactive()` are very
|
||||
serious since that function is called every time a service is started
|
||||
and/or restarted! For details, see the GIT log:
|
||||
* `helpers.c:run()`
|
||||
* `helpers.c:run_interactive()`
|
||||
* `helpers.c:set_hostname()`
|
||||
* `helpers.c:procname_kill()`
|
||||
* `svc.c:svc_start()`: Fix swapped arguments to dup2() and add close(fd)
|
||||
to prevent descriptor leak.
|
||||
* `svc.c:svc_start()`: Fix out of bounds write to local stack variable,
|
||||
wrote off-by-one outside array.
|
||||
* Several added checks for return values to `mknod()`, `mkdir()`,
|
||||
`remove()`, etc.
|
||||
|
||||
|
||||
[1.9] - 2014-04-21
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Add support for an include directive to `.conf` files
|
||||
* Fallback to `/bin/sh` if user forgets tty setting
|
||||
* Initial support for restarting lost services during `norespwan`
|
||||
|
||||
### Fixes
|
||||
* Bug fixes, code cleanup
|
||||
* Handle `SIGHUP` from service callback properly when switching runlevel
|
||||
* Misc. major (memleak) and minor fixes and additions to `libite/lite.h`
|
||||
|
||||
|
||||
[1.8] - 2013-06-07
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Support for runlevels, with a bootstrap runlevel 'S'
|
||||
* Support for saving previous and current runlevel to UTMP
|
||||
* Support for new `finit.conf` commands: run, task, and runlevel
|
||||
* Support for tty and console commands in `finit.conf`, like services
|
||||
but for launching multiple getty logins
|
||||
* New tty plugin to monitor TTYs coming and going, like USB TTYs
|
||||
|
||||
### Fixes
|
||||
* Bugfixes to libite
|
||||
|
||||
|
||||
[1.7] - 2012-10-08
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Show `__FILE__` in `_d()` debug messages, useful for plugins with
|
||||
similarily named callbacks. Also, only in debug mode anyway
|
||||
* Make sure to cleanup recorded PID when a service is lost. Required by
|
||||
service plugins for their callbacks to work.
|
||||
* Only clear screen when in verbose mode. Maybe this should be removed
|
||||
altogether?
|
||||
|
||||
### Fixes
|
||||
* Bugfix: Do not `free()` static string in `finit.conf` parser
|
||||
|
||||
|
||||
[1.6] - 2012-10-06
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Skip `.` and `..` in plugin loader and display error when failing to
|
||||
load plugins
|
||||
* Support for overriding `/etc/finit.d` with `runparts DIR` in
|
||||
`finit.conf`
|
||||
* Revoke support for starting services not starting with a slash.
|
||||
* Prevent endless restart of non-existing services in `finit.conf`
|
||||
* Support for sysvinit style startstop scripts in `/etc/finit.d`
|
||||
|
||||
### Fixes
|
||||
* Minor fix to alsa-utils plugin to silence on non-existing cards
|
||||
|
||||
|
||||
[1.5] - 2012-10-03
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Use bootmisc plugin to setup standard FHS 2.3 structure in `/var`
|
||||
* Added `FLOG_WARN()` syslog macro, for plugins
|
||||
* Add plugin dependency resolver. Checks `plugin_t` for `.depends`
|
||||
|
||||
|
||||
[1.4] - 2012-10-02
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Start refactoring helpers.c into a libite.so (-lite). This means
|
||||
other user space applications/daemons can make use of the neat toolbox
|
||||
available in finit
|
||||
* Use short-form -s/-w -u to work with BusyBox hwclock as well
|
||||
* Use RTLD_GLOBAL flag to tell dynamic loader to load dependent .so
|
||||
files as well. Lets other plugins use global symbols.
|
||||
* Greatly simplify svc hook for external plugins and cleanup plugin API.
|
||||
* And more ... see the GIT log for more details.
|
||||
|
||||
### Fixes
|
||||
* Fix I/O plugin watcher and load plugins earlier for a new hook
|
||||
|
||||
|
||||
[1.3] - 2012-09-28
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Cleanup public plugin API a bit and add new pid/pidfile funcs
|
||||
* Add plugin hook to end of service startup
|
||||
* Remove finit.h from svc.h, plugins should not need this.
|
||||
* Move utility macros etc. to helpers.h
|
||||
* Make `finit.h` daemon internal, only
|
||||
* Move defines of FIFO, conf and rcS.d to Makefile => correct paths
|
||||
* Add support for installing required headers in system include dir
|
||||
* Better support for distributions and packagers with install-exec,
|
||||
install-data, and install-dev targets in Makefile. Useful if you want
|
||||
to call targets with different `$DESTDIR`!
|
||||
* Makefile fixes for installation, paths encoded wrong
|
||||
* Strip binaries + .so files, support for `$(CROSS)` toolchain strip
|
||||
* Default install is now to `/sbin/finit` and `/usr/`
|
||||
* Note change in `$PLUGIN_DIR` environemnt variable to `$plugindir`
|
||||
|
||||
|
||||
[1.2] - 2012-09-27
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Update README with section on building and enviroment variables
|
||||
|
||||
### Fixes
|
||||
* Fix installation paths encoded in finit binary
|
||||
|
||||
|
||||
[1.1] - 2012-09-27
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* Rename signal.[ch]-->sig.[ch] to avoid name clash w/ system headers
|
||||
|
||||
### Fixes
|
||||
* Build fixes for ARM eabi/uClibc
|
||||
|
||||
|
||||
[1.0] - 2012-09-26
|
||||
------------------
|
||||
|
||||
### Changes
|
||||
* New plugin based system for all odd extensions
|
||||
* New service monitor that restarts services if they die
|
||||
* New maintainer at GitHub http://github.com/troglobit/finit
|
||||
* Add standard LICENSE and AUTHORS files
|
||||
* New focus: embedded systems and small headless servers
|
||||
|
||||
|
||||
[0.6] - 2010-06-14
|
||||
------------------
|
||||
|
||||
* Don't start consolekit manually, dbus starts it (rtp)
|
||||
* Unmount all filesystems before rebooting
|
||||
* Disable `USE_VAR_RUN_RESOLVCONF` for Mandriva
|
||||
* Unset terminal type in Mandriva before running X
|
||||
* Remove extra sleep in finit-alt before calling services.sh (caio)
|
||||
|
||||
|
||||
[0.5] - 2008-08-21
|
||||
------------------
|
||||
|
||||
* Add option to start dbus and consolekit before the X server
|
||||
* finit-alt listens to `/dev/initctl` to work with `reboot(8)` (smurfy)
|
||||
* Write runlevel to utmp, needed by Printerdrake (Pascal Terjan)
|
||||
* Fix ownership of `/var/run/utmp` (reported by Pascal Terjan)
|
||||
* Remove obsolete code to load AGP drivers
|
||||
* Conditional build of `/etc/resolveconf/run` support
|
||||
* Add support to `/var/run/resolvconf` in Mandriva (blino)
|
||||
|
||||
|
||||
[0.4] - 2008-05-16
|
||||
------------------
|
||||
|
||||
* Default username for finit-alt configurable in Makefile
|
||||
* Create loopback device node in finit-alt (for squashfs)
|
||||
* Add option to use built-in run-parts instead of `/bin/run-parts`
|
||||
* Ignore signal instead of setting to an empty handler (Metalshark)
|
||||
* Handle pam_console permissions in finit-alt for Mandriva
|
||||
* Add services.sh example and nash-hotplug patch for Mandriva
|
||||
* Mount `/proc/bus/usb` in Mandriva
|
||||
* Add runtime debug to finit-alt if finit_debug parameter is specified
|
||||
* Read configuration from `/etc/finit.conf`
|
||||
* Run getty with openvt on the virtual terminal
|
||||
|
||||
|
||||
[0.3] - 2008-02-23
|
||||
------------------
|
||||
|
||||
* Change poweroff method to `reboot(RB_POWER_OFF)` (Metalshark)
|
||||
* Remove duplicate `unionctl()` reimplementation error
|
||||
* Fix string termination in path creation
|
||||
* Mount `/var/lock` and `/var/run` as tmpfs
|
||||
|
||||
|
||||
[0.2] - 2008-02-19
|
||||
------------------
|
||||
|
||||
* Replace `system("touch")` with `touch()` in finit-mod (Metalshark)
|
||||
* Disable `NO_HCTOSYS` by default to match stock Eeepc kernel
|
||||
* Drop `system("rm -f")` to clean `/tmp`, its a fresh mounted tmpfs
|
||||
* Write ACPI sleep state to `/sys/power/state` instead of
|
||||
`/proc/acpi/sleep` (Metalshark)
|
||||
* Use direct calls to set loopback instead of `system("ifconfig")`
|
||||
* Replace `system("cat")` and `system("dd")` with C implementation
|
||||
* Moved finit-mod and finit-alt helpers to `helpers.c`
|
||||
* Replace `system("echo;cat")` to draw shutdown splash with C calls
|
||||
|
||||
|
||||
0.1 - 2008-02-14
|
||||
----------------
|
||||
|
||||
* Initial release
|
||||
|
||||
[libuEv]: https://github.com/troglobit/libuev
|
||||
[dea3ae8]: https://github.com/troglobit/finit/commit/dea3ae8
|
||||
[UNRELEASED]: https://github.com/troglobit/finit/compare/1.12...HEAD
|
||||
[1.12]: https://github.com/troglobit/finit/compare/1.11...1.12
|
||||
[1.11]: https://github.com/troglobit/finit/compare/1.10...1.11
|
||||
[1.10]: https://github.com/troglobit/finit/compare/1.9...1.10
|
||||
[1.9]: https://github.com/troglobit/finit/compare/1.8...1.9
|
||||
[1.8]: https://github.com/troglobit/finit/compare/1.7...1.8
|
||||
[1.7]: https://github.com/troglobit/finit/compare/1.6...1.7
|
||||
[1.6]: https://github.com/troglobit/finit/compare/1.5...1.6
|
||||
[1.5]: https://github.com/troglobit/finit/compare/1.4...1.5
|
||||
[1.4]: https://github.com/troglobit/finit/compare/1.3...1.4
|
||||
[1.3]: https://github.com/troglobit/finit/compare/1.2...1.3
|
||||
[1.2]: https://github.com/troglobit/finit/compare/1.1...1.2
|
||||
[1.1]: https://github.com/troglobit/finit/compare/1.0...1.1
|
||||
[1.0]: https://github.com/troglobit/finit/compare/0.9...1.0
|
||||
[0.9]: https://github.com/troglobit/finit/compare/0.8...0.9
|
||||
[0.8]: https://github.com/troglobit/finit/compare/0.7...0.8
|
||||
[0.7]: https://github.com/troglobit/finit/compare/0.6...0.7
|
||||
[0.6]: https://github.com/troglobit/finit/compare/0.5...0.6
|
||||
[0.5]: https://github.com/troglobit/finit/compare/0.4...0.5
|
||||
[0.4]: https://github.com/troglobit/finit/compare/0.3...0.4
|
||||
[0.3]: https://github.com/troglobit/finit/compare/0.2...0.3
|
||||
[0.2]: https://github.com/troglobit/finit/compare/0.1...0.2
|
||||
|
||||
@@ -1,58 +0,0 @@
|
||||
1.1 (20120927)
|
||||
- Build fixes for ARM eabi/uClibc
|
||||
- Rename signal.[ch]-->sig.[ch] to avoid name clash w/ system headers
|
||||
|
||||
1.0 (20120926)
|
||||
- New plugin based system for all odd extensions
|
||||
- New service monitor that restarts services if they die
|
||||
- New maintainer at GitHub http://github.com/troglobit/finit
|
||||
- Add standard LICENSE and AUTHORS files
|
||||
- New focus: embedded systems and small headless servers
|
||||
|
||||
0.6 (20100614)
|
||||
- don't start consolekit manually, dbus starts it (rtp)
|
||||
- unmount all filesystems before rebooting
|
||||
- disable USE_VAR_RUN_RESOLVCONF for Mandriva
|
||||
- unset terminal type in Mandriva before running X
|
||||
- remove extra sleep in finit-alt before calling services.sh (caio)
|
||||
|
||||
0.5 (20080821)
|
||||
- add option to start dbus and consolekit before the X server
|
||||
- finit-alt listens to /dev/initctl to work with reboot(8) (smurfy)
|
||||
- write runlevel to utmp, needed by Printerdrake (Pascal Terjan)
|
||||
- fix ownership of /var/run/utmp (reported by Pascal Terjan)
|
||||
- remove obsolete code to load AGP drivers
|
||||
- conditional build of /etc/resolveconf/run support
|
||||
- add support to /var/run/resolvconf in Mandriva (blino)
|
||||
|
||||
O.4 (20080516)
|
||||
- default username for finit-alt configurable in Makefile
|
||||
- create loopback device node in finit-alt (for squashfs)
|
||||
- add option to use built-in run-parts instead of /bin/run-parts
|
||||
- ignore signal instead of setting to an empty handler (Metalshark)
|
||||
- handle pam_console permissions in finit-alt for Mandriva
|
||||
- add services.sh example and nash-hotplug patch for Mandriva
|
||||
- mount /proc/bus/usb in Mandriva
|
||||
- add runtime debug to finit-alt if finit_debug parameter is specified
|
||||
- read configuration from /etc/finit.conf
|
||||
- run getty with openvt on the virtual terminal
|
||||
|
||||
0.3 (20080223)
|
||||
- Change poweroff method to reboot(RB_POWER_OFF) (Metalshark)
|
||||
- Remove duplicate unionctl() reimplementation error
|
||||
- Fix string termination in path creation
|
||||
- Mount /var/lock and /var/run as tmpfs
|
||||
|
||||
0.2 (20080219)
|
||||
- replace system("touch") with touch() in finit-mod (Metalshark)
|
||||
- disable NO_HCTOSYS by default to match stock Eeepc kernel
|
||||
- drop system("rm -f") to clean /tmp, its a fresh mounted tmpfs
|
||||
- write ACPI sleep state to /sys/power/state instead of
|
||||
/proc/acpi/sleep (Metalshark)
|
||||
- use direct calls to set loopback instead of system("ifconfig")
|
||||
- replace system("cat") and system("dd") with C implementation
|
||||
- moved finit-mod and finit-alt helpers to helpers.c
|
||||
- replace system("echo;cat") to draw shutdown splash with C calls
|
||||
|
||||
0.1 (20080214)
|
||||
- initial release
|
||||
@@ -1,5 +1,5 @@
|
||||
Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
# finit - The Improved fast init
|
||||
# Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
|
||||
#
|
||||
# Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
# Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
# Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -21,81 +21,158 @@
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
.PHONY: all romfs clean
|
||||
|
||||
# Top directory for building complete system, fall back to this directory
|
||||
ROOTDIR ?= $(shell pwd)
|
||||
# Plugin directory, fall back to this directory if unset in environment
|
||||
PLUGIN_DIR ?= /lib/finit/plugins
|
||||
.PHONY: all install clean distclean dist \
|
||||
install-exec install-data install-dev \
|
||||
uninstall-exec uninstall-data uninstall-dev
|
||||
|
||||
#VERSION ?= $(shell git tag -l | tail -1)
|
||||
VERSION ?= 1.1
|
||||
EXEC = finit
|
||||
PKG = $(EXEC)-$(VERSION)
|
||||
ARCHIVE = $(PKG).tar.xz
|
||||
OBJS = finit.o conf.o helpers.o sig.o svc.o plugin.o
|
||||
OBJS += strlcpy.o
|
||||
VERSION ?= 1.12
|
||||
NAME = finit
|
||||
PKG = $(NAME)-$(VERSION)
|
||||
DEV = $(NAME)-dev
|
||||
ARCHTOOL = `which git-archive-all`
|
||||
ARCHIVE = $(PKG).tar
|
||||
ARCHIVEZ = ../$(ARCHIVE).xz
|
||||
EXEC = finit reboot
|
||||
HEADERS = plugin.h svc.h helpers.h queue.h
|
||||
DISTFILES = LICENSE README CHANGELOG finit.conf services
|
||||
OBJS = finit.o conf.o helpers.o sig.o svc.o plugin.o tty.o inetd.o
|
||||
SRCS = $(OBJS:.o=.c)
|
||||
DEPS = $(addprefix .,$(SRCS:.c=.d))
|
||||
CFLAGS += -W -Wall -Werror -Os
|
||||
# Disable annoying gcc warning for "warn_unused_result", see GIT 37af997
|
||||
CPPFLAGS += -U_FORTIFY_SOURCE
|
||||
CPPFLAGS += -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_GNU_SOURCE
|
||||
CPPFLAGS += -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
|
||||
CPPFLAGS += -DPLUGIN_PATH=\"$(PLUGIN_DIR)\"
|
||||
LDFLAGS += -rdynamic
|
||||
LDLIBS += -ldl
|
||||
|
||||
prefix ?= /usr/local
|
||||
# Installation paths, always prepended with DESTDIR if set
|
||||
TOPDIR = $(shell pwd)
|
||||
prefix ?= /usr
|
||||
sysconfdir ?= /etc
|
||||
sbindir ?= /sbin
|
||||
libdir ?= /lib
|
||||
plugindir ?= $(libdir)/finit/plugins
|
||||
incdir = $(prefix)/include/finit
|
||||
datadir = $(prefix)/share/doc/finit
|
||||
mandir = $(prefix)/share/man/man8
|
||||
|
||||
include common.mk
|
||||
export PLUGIN_DIR ROOTDIR CPPFLAGS
|
||||
# The initctl FIFO, should probably be in /run, not /dev
|
||||
FINIT_FIFO ?= /dev/initctl
|
||||
FINIT_CONF ?= $(sysconfdir)/finit.conf
|
||||
FINIT_RCSD ?= $(sysconfdir)/finit.d
|
||||
|
||||
all: Makefile $(EXEC)
|
||||
$(MAKE) -C plugins $@
|
||||
CFLAGS += -W -Wall -Werror -Os
|
||||
# Disable annoying gcc warning for "warn_unused_result", see GIT 37af997
|
||||
CPPFLAGS += -U_FORTIFY_SOURCE
|
||||
CPPFLAGS += -Ilibite -Ilibuev
|
||||
CPPFLAGS += -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_GNU_SOURCE
|
||||
CPPFLAGS += -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
|
||||
CPPFLAGS += -DFINIT_FIFO=\"$(FINIT_FIFO)\" -DFINIT_CONF=\"$(FINIT_CONF)\"
|
||||
CPPFLAGS += -DFINIT_RCSD=\"$(FINIT_RCSD)\" -DPLUGIN_PATH=\"$(plugindir)\"
|
||||
LDFLAGS += -rdynamic -L$(TOPDIR)/libite
|
||||
DEPLIBS = libite/libite.so libuev/libuev.a
|
||||
LDLIBS += -ldl -lite
|
||||
|
||||
include common.mk
|
||||
export libdir plugindir incdir ROOTDIR CPPFLAGS LDFLAGS LDLIBS
|
||||
|
||||
all: $(DEPLIBS) $(EXEC)
|
||||
+$(MAKE) -C plugins $@
|
||||
|
||||
$(DEPLIBS): Makefile
|
||||
+$(MAKE) -C libite all
|
||||
+$(MAKE) -C libuev all
|
||||
|
||||
$(OBJS): Makefile
|
||||
|
||||
$(EXEC): $(OBJS)
|
||||
finit: $(OBJS) $(DEPLIBS)
|
||||
|
||||
# @ln -sf /sbin/finit /sbin/init
|
||||
install: all
|
||||
@install -d $(DESTDIR)$(prefix)/sbin
|
||||
@install -d $(DESTDIR)$(sysconfdir)
|
||||
@install -d $(DESTDIR)$(datadir)
|
||||
@install -d $(DESTDIR)$(mandir)
|
||||
reboot: reboot.o $(DEPLIBS)
|
||||
|
||||
install-exec: all
|
||||
@$(INSTALL) -d $(DESTDIR)$(FINIT_RCSD)
|
||||
@$(INSTALL) -d $(DESTDIR)$(sbindir)
|
||||
@for file in $(EXEC); do \
|
||||
printf " INSTALL $(DESTDIR)$(prefix)/sbin/$$file\n"; \
|
||||
install -m 0755 $$file $(DESTDIR)$(prefix)/sbin/$$file; \
|
||||
printf " INSTALL $(DESTDIR)$(sbindir)/$$file\n"; \
|
||||
$(STRIPINST) $$file $(DESTDIR)$(sbindir)/$$file; \
|
||||
done
|
||||
$(MAKE) -C plugins $@
|
||||
$(MAKE) -C libite install-exec
|
||||
$(MAKE) -C plugins install
|
||||
|
||||
uninstall:
|
||||
-@for file in $(EXEC); do \
|
||||
printf " REMOVE $(DESTDIR)$(prefix)/sbin/$$file\n"; \
|
||||
rm $(DESTDIR)$(prefix)/sbin/$$file 2>/dev/null; \
|
||||
install-data:
|
||||
@$(INSTALL) -d $(DESTDIR)$(datadir)
|
||||
@$(INSTALL) -d $(DESTDIR)$(mandir)
|
||||
@for file in $(DISTFILES); do \
|
||||
printf " INSTALL $(DESTDIR)$(datadir)/$$file\n"; \
|
||||
$(INSTALL) -m 0644 $$file $(DESTDIR)$(datadir)/$$file; \
|
||||
done
|
||||
$(MAKE) -C plugins $@
|
||||
|
||||
install-dev:
|
||||
@$(INSTALL) -d $(DESTDIR)$(incdir)
|
||||
@for file in $(HEADERS); do \
|
||||
printf " INSTALL $(DESTDIR)$(incdir)/$$file\n"; \
|
||||
$(INSTALL) -m 0644 $$file $(DESTDIR)$(incdir)/$$file; \
|
||||
done
|
||||
$(MAKE) -C libite install-dev install-exec
|
||||
|
||||
install: install-exec install-data install-dev
|
||||
|
||||
uninstall-exec:
|
||||
-@for file in $(EXEC); do \
|
||||
printf " REMOVE $(DESTDIR)$(sbindir)/$$file\n"; \
|
||||
rm $(DESTDIR)$(sbindir)/$$file 2>/dev/null; \
|
||||
done
|
||||
-@rmdir $(DESTDIR)$(sbindir) 2>/dev/null
|
||||
-@rmdir $(DESTDIR)$(FINIT_RCSD) 2>/dev/null
|
||||
$(MAKE) -C libite uninstall
|
||||
$(MAKE) -C plugins uninstall
|
||||
|
||||
uninstall-data:
|
||||
@for file in $(DISTFILES); do \
|
||||
printf " REMOVE $(DESTDIR)$(datadir)/$$file\n"; \
|
||||
rm $(DESTDIR)$(datadir)/$$file 2>/dev/null; \
|
||||
done
|
||||
-@rmdir $(DESTDIR)$(mandir)
|
||||
-@rmdir $(DESTDIR)$(datadir)
|
||||
|
||||
uninstall-dev:
|
||||
-@$(RM) -rf $(DESTDIR)$(incdir)
|
||||
|
||||
uninstall: uninstall-exec uninstall-data uninstall-dev
|
||||
|
||||
clean:
|
||||
-@$(RM) $(OBJS) $(DEPS) $(EXEC)
|
||||
$(MAKE) -C plugins $@
|
||||
+$(MAKE) -C plugins $@
|
||||
+$(MAKE) -C libite $@
|
||||
+$(MAKE) -C libuev $@
|
||||
|
||||
distclean: clean
|
||||
-@$(RM) $(JUNK) unittest *.o
|
||||
$(MAKE) -C plugins $@
|
||||
-@$(RM) $(JUNK) unittest *.o .*.d
|
||||
+$(MAKE) -C plugins $@
|
||||
+$(MAKE) -C libite $@
|
||||
+$(MAKE) -C libuev $@
|
||||
|
||||
check:
|
||||
$(CHECK) *.c plugins/*.c libite/*.c
|
||||
|
||||
dist:
|
||||
@if [ x"$(ARCHTOOL)" = x"" ]; then \
|
||||
echo "Missing git-archive-all from https://github.com/Kentzo/git-archive-all"; \
|
||||
exit 1; \
|
||||
fi
|
||||
@if [ -e $(ARCHIVEZ) ]; then \
|
||||
echo "Distribution already exists."; \
|
||||
exit 1; \
|
||||
fi
|
||||
@echo "Building xz tarball of $(PKG) in parent dir..."
|
||||
git archive --format=tar --prefix=$(PKG)/ $(VERSION) | xz >../$(ARCHIVE)
|
||||
@(cd ..; md5sum $(ARCHIVE) | tee $(ARCHIVE).md5)
|
||||
@$(ARCHTOOL) ../$(ARCHIVE)
|
||||
@xz ../$(ARCHIVE)
|
||||
@md5sum $(ARCHIVEZ) | tee $(ARCHIVEZ).md5
|
||||
|
||||
dev: distclean
|
||||
@echo "Building unstable xz $(DEV) in parent dir..."
|
||||
-@$(RM) -f ../$(DEV).tar.xz*
|
||||
@(dir=`mktemp -d`; mkdir $$dir/$(DEV); cp -a . $$dir/$(DEV); \
|
||||
cd $$dir; tar --exclude=.git --exclude=contrib \
|
||||
-c -J -f $(DEV).tar.xz $(DEV); \
|
||||
cd - >/dev/null; mv $$dir/$(DEV).tar.xz ../; cd ..; \
|
||||
rm -rf $$dir; md5sum $(DEV).tar.xz | tee $(DEV).tar.xz.md5)
|
||||
|
||||
# Include automatically generated rules, such as:
|
||||
# uncgi.o: .../some/dir/uncgi.c /usr/include/stdio.h
|
||||
# but don't bother during clean!
|
||||
ifneq ($(MAKECMDGOALS),clean)
|
||||
ifneq ($(MAKECMDGOALS),distclean)
|
||||
-include $(DEPS)
|
||||
|
||||
@@ -0,0 +1,585 @@
|
||||
Finit | Fast & Extensible init for Linux
|
||||
========================================
|
||||
[![Travis Status]][Travis] [![Coverity Status]][Coverity Scan]
|
||||
|
||||

|
||||
|
||||
|
||||
Table of Contents
|
||||
-----------------
|
||||
|
||||
* [Introduction](#introduction)
|
||||
* [Features](#features)
|
||||
* [/etc/finit.conf](#etcfinitconf)
|
||||
* [/etc/finit.d](#etcfinitd)
|
||||
* [Bootstrap](#bootstrap)
|
||||
* [Runlevels](#runlevels)
|
||||
* [Inetd](#inetd)
|
||||
* [Hooks, Callbacks & Plugins](#hooks-callbacks--plugins)
|
||||
* [Rebooting & Halting](#rebooting--halting)
|
||||
* [Building](#building)
|
||||
* [Running](#running)
|
||||
* [Debugging](#debugging)
|
||||
* [Origin & References](#origin--references)
|
||||
|
||||
|
||||
Introduction
|
||||
------------
|
||||
|
||||
Init is the first userland process started by the UNIX kernel, therefore
|
||||
it always has PID 1 and is responsible for starting up the rest of the
|
||||
system.
|
||||
|
||||
Finit is a plugin-based init with [process supervision][1] similar to
|
||||
that of D.J. Bernstein's [daemontools][2] and Gerrit Pape's [runit][3].
|
||||
The main focus of Finit is on small and embedded GNU/Linux systems, yet
|
||||
fully functional on standard server and desktop installations as well.
|
||||
|
||||
Traditional [SysV init][4] style systems are scripted. For low-resource
|
||||
embedded systems this can be quite resource intensive and cause longer
|
||||
boot times. Finit is optimized to reduce context switches and forking
|
||||
of processes to provide a very basic bootstrap written entirely in C.
|
||||
|
||||
> Finit basically does everything you need from its `main()` function!
|
||||
|
||||
Hence, there is no `/etc/init.d/rcS` script, or similar, instead Finit
|
||||
reads its configuration from [/etc/finit.conf](#etcfinitconf). This
|
||||
file details what kernel modules to load, programs to run, daemons to
|
||||
supervise, and services to launch on demand.
|
||||
|
||||
See [TroglOS][9] for an example of how to boot a small embedded system
|
||||
with Finit.
|
||||
|
||||
|
||||
Features
|
||||
--------
|
||||
|
||||
**Process Supervision**
|
||||
|
||||
Start, monitor and restart processes (daemons) if they fail.
|
||||
|
||||
**Inetd**
|
||||
|
||||
Finit comes with an `inetd` server built-in. No need to maintain a
|
||||
separate config file for services that you want to start on demand.
|
||||
|
||||
**Runlevels**
|
||||
|
||||
Runlevels are optional in Finit, but support for [SysV runlevels][5] is
|
||||
available if needed. All services in runlevel S(1) are started first,
|
||||
followed by the desired run-time runlevel. Runlevel S can be started in
|
||||
sequence by using `run [S] cmd`. Changing runlevels at runtime is done
|
||||
like any other init, e.g. <kbd>init 4</kbd>.
|
||||
|
||||
**Plugins**
|
||||
|
||||
Finit plugins can be either *boot hooks* into different stages of the
|
||||
boot process, *service callbacks*, or *pure extensions*. A plugin is a
|
||||
C file that compiles into a dynamic library that is loaded automatically
|
||||
by finit at boot. A basic set of plugins that extend and modify the
|
||||
basic behavior are bundled. See examples in the `plugins/` directory.
|
||||
|
||||
Plugin capabilities:
|
||||
|
||||
* Service callbacks -- modify service arguments, run/restart/stop
|
||||
* Task/Run callbacks -- a one-shot commands, executed in sequence
|
||||
* Hooks -- hook into the boot at predefined points to extend finit
|
||||
* I/O -- listen to external events and control finit behavior/services
|
||||
|
||||
Extensions and functionality not purely related to what an `/sbin/init`
|
||||
needs to start a system are available as a set of plugins that either
|
||||
hook into the boot process or respond to various I/O.
|
||||
|
||||
|
||||
/etc/finit.conf
|
||||
---------------
|
||||
|
||||
Contrary to most other script based init alternatives ([SysV init][4],
|
||||
[upstart][6], [systemd][7], [OpenRC][8], etc.) Finit reads its entire
|
||||
configuration from `/etc/finit.conf`.
|
||||
|
||||
The command line arguments given in `/etc/finit.conf` to each service
|
||||
provide a default. A plugin can be used to register a callback to a
|
||||
service and then modify the behavior to suit the current runlevel and
|
||||
system configuration.
|
||||
|
||||
For instance, before starting a heavily resource intensive service like
|
||||
IPsec or OpenVPN, a callback can check if the outbound interface is up
|
||||
and has an IP address, or just check if the service is disabled -- much
|
||||
like what a SysV init start script usually does.
|
||||
|
||||
Syntax:
|
||||
|
||||
* `check <DEV>`
|
||||
|
||||
Run fsck on a file system before mounting it
|
||||
|
||||
* `module <MODULE>`
|
||||
|
||||
Load a kernel module, with optional arguments
|
||||
|
||||
* `network <PATH>`
|
||||
|
||||
Script or program to bring up networking, with optional arguments
|
||||
|
||||
* `runlevel <N>`
|
||||
|
||||
N is the runlevel number 1-9, where 6 is reserved for reboot.
|
||||
|
||||
Default is 2.
|
||||
|
||||
* `run [LVLS] /path/to/cmd ARGS -- Optional description`
|
||||
|
||||
One-shot command to run in sequence when entering a runlevel, with
|
||||
optional arguments and description. This command is guaranteed to be
|
||||
completed before running the next command.
|
||||
|
||||
* `task [LVLS] /path/to/cmd ARGS -- Optional description`
|
||||
|
||||
One-shot like 'run', but starts in parallel with the next command
|
||||
|
||||
* `service [LVLS] /path/to/daemon ARGS -- Optional description`
|
||||
|
||||
Service, or daemon, to be monitored and automatically restarted if it
|
||||
exits prematurely. Please note that you often need to provide a
|
||||
--foreground or --no-background argument to most daemons to prevent
|
||||
them from forking off to the background.
|
||||
|
||||
* `inetd SVC[@iface[:port]]/PROTO <wait|nowait> [LVLS] /path/to/daemon args`
|
||||
|
||||
Launch daemon on demand when a client initiates a connection to `SVC`.
|
||||
Services (SVC) are specified in the standard UNIX `/etc/services`
|
||||
file. With optional filtering for `iface` and possible custom `port`.
|
||||
The following example opens port 2323 and only allows inbound telnet
|
||||
connections from `eth0`:
|
||||
|
||||
inetd telnet@eth0:2323/tcp nowait [2345] /sbin/telnetd -i -F
|
||||
|
||||
The `inetd` directive can also have ` -- Optional Description`, only
|
||||
Finit does not output this text on the console when launching inetd
|
||||
services. Instead this text is sent to syslog.
|
||||
|
||||
* `runparts <PATH>`
|
||||
|
||||
Call run-parts(8) on a directory other than default ``/etc/finit.d``
|
||||
|
||||
* `include <CONF>`
|
||||
|
||||
Include another configuration file, ``/etc/finit.d``, or runparts path
|
||||
is prepended to file if the file is not found or an absolute path is
|
||||
not given
|
||||
|
||||
* `tty [LVLS] <DEV | /path/to/cmd [args]>`
|
||||
|
||||
Start a getty on the given TTY device DEV, in the given runlevels. If
|
||||
no tty setting is given in `finit.conf`, or if `/bin/sh` is given as
|
||||
argument instead of a device path, a single shell is started on the
|
||||
default console. Useful for really bare-bones systems.
|
||||
|
||||
It is also possible to supply the full command line, with arguments,
|
||||
to your getty. In this case finit will simply use that command.
|
||||
|
||||
See `finit.h` for the `#define GETTY` that is called, along with the
|
||||
default baud rate.
|
||||
|
||||
* `console <DEV | /path/to/cmd [args]>`
|
||||
|
||||
Some embedded systems have a dedicated serial console/service port.
|
||||
This command tells finit to not start getty directly, since there may
|
||||
not be anyone there. To save RAM and CPU finit instead displays a
|
||||
friendly message and waits for the user to activate the console with a
|
||||
key press before starting getty. Finit also does some other magic and
|
||||
changes the process name to "console".
|
||||
|
||||
Like the `tty` command, the `console` command can also be used to
|
||||
simply start a UNIX shell, e.g. `/bin/sh`.
|
||||
|
||||
When running <kbd>make install</kbd> no default `/etc/finit.conf` will
|
||||
be installed since system requirements differ too much. Try out the
|
||||
Debian 6.0 example `/usr/share/doc/finit/finit.conf` configuration that
|
||||
is capable of service monitoring SSH, sysklogd, gdm and a console getty!
|
||||
|
||||
Every `run`, `task`, `service`, or `inetd` can also list the privileges
|
||||
the `/path/to/cmd` should be executed with. Simply prefix the path with
|
||||
`[@USR[:GRP]]` like this:
|
||||
|
||||
run [2345] @joe:users /usr/bin/logger "Hello world"
|
||||
|
||||
|
||||
/etc/finit.d
|
||||
------------
|
||||
|
||||
At the end of the boot, when networking and all services are up, finit
|
||||
calls its built-in [run-parts(8)] on the `/etc/finit.d/` directory, if
|
||||
it exists. Similar to how the `/ec/rc.local` file works in most other
|
||||
init daemons, only finit runs a directory of scripts. This replaces the
|
||||
earlier support for a `/usr/sbin/services.sh` script in the original
|
||||
finit.
|
||||
|
||||
|
||||
Bootstrap
|
||||
---------
|
||||
|
||||
1. Setup `/dev`
|
||||
2. Parse `/etc/finit.conf`
|
||||
3. Load all `.so` plugins
|
||||
4. Remount/Pivot `/` to get R+W
|
||||
5. Call 1st level hooks, `HOOK_ROOTFS_UP`
|
||||
6. Mount `/etc/fstab` and swap, if available
|
||||
7. Cleanup stale files from `/tmp/*` et al
|
||||
8. Enable SysV init signals
|
||||
9. Call 2nd level hooks, `HOOK_BASEFS_UP`
|
||||
10. Start all 'S' runlevel tasks and services
|
||||
11. Setup `/etc/sysctl.conf`
|
||||
12. Setup hostname and loopback
|
||||
13. Call `network` script, if set in `/etc/finit.conf`
|
||||
14. Call 3rd level hooks, `HOOK_NETWORK_UP`
|
||||
15. Switch to active runlevel, as set in `/etc/finit.conf`, default 2.
|
||||
Here is where the rest of all tasks and inetd services are started.
|
||||
16. Call 4th level hooks, `HOOK_SVC_UP`
|
||||
17. Run-parts in `/etc/finit.d`, if any
|
||||
18. Call 5th level (last) hooks, `HOOK_SYSTEM_UP`
|
||||
19. Start TTYs defined in `/etc/finit.conf`, or rescue on `/dev/console`
|
||||
20. Enter main monitor loop
|
||||
|
||||
In (10) and (15) tasks and services defined in `/etc/finit.conf` are
|
||||
started. Remember, all `service` and `task` stanzas are started in
|
||||
parallel and `run` in sequence, and in the order listed. Hence, to
|
||||
emulate a SysV `/etc/init.d/rcS` one could write a long file with only
|
||||
`run` statements.
|
||||
|
||||
Notice the five hook points that are called at various point in the
|
||||
bootstrap process. This is where plugins can extend the boot in any way
|
||||
they please.
|
||||
|
||||
For instance, at `HOOK_BASEFS_UP` a plugin could read an XML file from a
|
||||
USB stick, convert/copy its contents to the system's `/etc/` directory,
|
||||
well before all 'S' runlevel tasks are started. This could be used with
|
||||
system images that are created read-only and all configuration is stored
|
||||
on external media.
|
||||
|
||||
|
||||
Runlevels
|
||||
---------
|
||||
|
||||
Basic support for [runlevels][5] is included in Finit from v1.8. By
|
||||
default all services, tasks, run commands and TTYs listed without a set
|
||||
of runlevels get a default set `[234]` assigned. The default runlevel
|
||||
after boot is 2.
|
||||
|
||||
To specify an allowed set of runlevels for a `service`, `run` command, `task`,
|
||||
or `tty`, add `[NNN]` to it in your `/etc/finit.conf`, like this:
|
||||
|
||||
service [S12345] /sbin/syslogd -n -x -- System log daemon
|
||||
run [S] /etc/init.d/acpid start -- Starting ACPI Daemon
|
||||
task [S] /etc/init.d/kbd start -- Preparing console
|
||||
service [S12345] /sbin/klogd -n -x -- Kernel log daemon
|
||||
tty [12345] /dev/tty1
|
||||
tty [2] /dev/tty2
|
||||
tty [2] /dev/tty3
|
||||
tty [2] /dev/tty4
|
||||
tty [2] /dev/tty5
|
||||
tty [2] /dev/tty6
|
||||
|
||||
In this example syslogd is first started, in parallel, and then acpid is
|
||||
called using a conventional SysV init script. It is called with the run
|
||||
command, meaning the following task command to start the kbd script is
|
||||
not called until the acpid init script has fully completed. Then the
|
||||
keyboard setup script is called in parallel with klogd as a monitored
|
||||
service.
|
||||
|
||||
Again, tasks and services are started in parallel, while run commands
|
||||
are called in the order listed and subsequent commands are not started
|
||||
until a run command has completed.
|
||||
|
||||
Switching between runlevels can be done by calling init with a single
|
||||
argument, e.g. <kbd>init 5</kbd> switches to runlevel 5.
|
||||
|
||||
|
||||
Inetd
|
||||
-----
|
||||
|
||||
A built-in *Internet Super Server* support was added in Finit v1.12,
|
||||
along with an internal `time` inetd service, RFC 868 (rdate). The
|
||||
latter is supplied as a plugin to illustrate how simple it is to extend
|
||||
finit with more internal inetd services.
|
||||
|
||||
> Please note, not all UNIX daemons are prepared to run as inetd services.
|
||||
> In the example below `sshd` also need the command line argument `-i`.
|
||||
|
||||
The inetd support in finit is quite advanced. Not only does it launch
|
||||
services on demand, it can do so on custom ports and also filter inbound
|
||||
traffic using a poor man's tcpwrappers. The syntax is very similar to
|
||||
traditional `/etc/inetd.conf`, yet keeping with the style of Finit:
|
||||
|
||||
# Launch SSH on demand, in runlevels 2-5 as root
|
||||
inetd ssh/tcp nowait [2345] @root:root /usr/sbin/sshd -i
|
||||
|
||||
A more advanced example:
|
||||
|
||||
# Start sshd if inbound connection on eth0, port 222, or
|
||||
# inbound on eth1, port 22. Ignore on other interfaces.
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh@eth1:22/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
If eth0 is your Internet interface you may want to avoid using the
|
||||
default port. To run ssh on port 222, and all others on port 22:
|
||||
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
This actually adds a deny rule for eth0 on ssh/tcp, implicitly. You can
|
||||
even list the services in the reverse order with the same result:
|
||||
|
||||
inetd ssh/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
There is no specific deny syntax available yet, see the TODO file for
|
||||
more details on how this can be implemented.
|
||||
|
||||
The `time.so` inetd plugin setup as follows. Notice the keyword
|
||||
`internal` which applies to all built-in inetd services:
|
||||
|
||||
inetd time/tcp nowait [2345] internal
|
||||
|
||||
Then call `rdate` from a remote machine (or use localhost):
|
||||
|
||||
rdate -p <IP>
|
||||
|
||||
If you use `time/udp` you must use the standard rdate implementation and
|
||||
then call it with `rdate -up` to connect using UDP. Without the `-p`
|
||||
argument rdate will try to set the system clock. Please note that rdate
|
||||
has been deprecated by the NTP protocol and this plugin should only be
|
||||
used for testing or environments where NTP for some reason is blocked.
|
||||
Also, remember the UNIX year 2038 bug, or in the case of RFC 868 (and
|
||||
some NTP implementations), year 2036!
|
||||
|
||||
|
||||
Hooks, Callbacks & Plugins
|
||||
--------------------------
|
||||
|
||||
Finit provides only the bare necessities for starting and supervising
|
||||
processes, with an emphasis on *bare* -- for your convenience it does
|
||||
however come with support for hooks, service callbacks and plugins that
|
||||
can used to extend finit with. For your convenience a set of *optional*
|
||||
plugins are available:
|
||||
|
||||
* *alsa-utils.so*: Restore and save ALSA sound settings on
|
||||
startup/shutdown.
|
||||
|
||||
* *bootmisc.so*: Setup necessary files for UTMP, tracks logins at boot.
|
||||
|
||||
* *dbus.so*: Setup and start system message bus, D-Bus, at boot.
|
||||
|
||||
* *hwclock.so*: Restore and save system clock from/to RTC on
|
||||
startup/shutdown.
|
||||
|
||||
* *initctl.so*: Extends finit with a traditional initctl functionality.
|
||||
|
||||
* *resolvconf.so*: Setup necessary files for resolvconf at startup.
|
||||
|
||||
* *tty.so*: Watches `/dev`, using inotify, for new device nodes (TTY's)
|
||||
to start/stop getty consoles on them on demand. Useful when plugging
|
||||
in a usb2serial converter to login to your embedded device.
|
||||
|
||||
* *urandom.so*: Setup random seed at startup.
|
||||
|
||||
* *x11-common.so*: Setup necessary files for X-Window.
|
||||
|
||||
* *time.so*: RFC 868 (rdate) plugin. Start as inetd service. Useful
|
||||
for testing inetd filtering -- BusyBox has an rdate (TCP) client.
|
||||
|
||||
Usually you want to hook into the boot process once, simple hook plugins
|
||||
like `bootmisc.so` are great for that purpose. They are called at each
|
||||
hook point in the boot process, useful to insert some pre-bootstrap
|
||||
mechanisms, like generating configuration files, restoring HW device
|
||||
state, etc. Available hook points are:
|
||||
|
||||
* `HOOK_ROOTFS_UP`: When `finit.conf` has been read and `/` has is
|
||||
mounted -- very early
|
||||
|
||||
* `HOOK_BASEFS_UP`: All of `/etc/fstab` is mounted, swap is available
|
||||
and default init signals are setup
|
||||
|
||||
* `HOOK_NETWORK_UP`: System bootstrap, runlevel S, has completed and
|
||||
networking is up (`lo` is up and the `network` script has run)
|
||||
|
||||
* `HOOK_SVC_UP`: All services in the active runlevel has been launched
|
||||
|
||||
* `HOOK_SYSTEM_UP`: All services *and* everything in `/etc/finit.d`
|
||||
has been launched
|
||||
|
||||
* `HOOK_SHUTDOWN`: Called at shutdown/reboot, right before all
|
||||
services are sent `SIGTERM`
|
||||
|
||||
Plugins like `initctl.so` and `tty.so` extend finit by acting on events,
|
||||
they are called I/O plugins and are called from the finit main loop when
|
||||
`poll()` detects an event. See the source code for `plugins/*.c` for
|
||||
more help and ideas.
|
||||
|
||||
Callback plugins are called by finit them right before a process is
|
||||
started, or restarted if it exits. The callback receive a pointer to
|
||||
the `svc_t` (defined in `svc.h`) of the service, with all command line
|
||||
parameters free to modify if needed. All the callback needs to do is
|
||||
respond with one of: `SVC_STOP (0)` tells finit to *not* start the
|
||||
service, `SVC_START (1)` to start the service, or `SVC_RELOAD (2)` to
|
||||
have finit signal the process with `SIGHUP`.
|
||||
|
||||
|
||||
Rebooting & Halting
|
||||
-------------------
|
||||
|
||||
Finit handles `SIGUSR1` and `SIGUSR2` for reboot and halt, and listens
|
||||
to `/dev/initctl` so system reboot and halt commands should also work.
|
||||
This latter functionality is implemented in the optional `initctl.so`
|
||||
plugin.
|
||||
|
||||
|
||||
Building
|
||||
--------
|
||||
|
||||
The finit build system does not employ the GNU Configure and Build System,
|
||||
instead standard makefiles are used. The user is encouraged to make source
|
||||
code changes, using defines and conditionally building plugins instead to
|
||||
alter the behavior of finit.
|
||||
|
||||
The following environment variables are checked by the makefiles and control
|
||||
what is built and where resulting binaries are installed.
|
||||
|
||||
* `ROOTDIR=`: Top directory for building complete system, used in pretty
|
||||
printing.
|
||||
|
||||
* `VERSION=`: Defaults to the currently released version of finit,
|
||||
e.g., 1.3 but can be overridden by packagers using this variable to
|
||||
add a suffix or completely alter the version.
|
||||
|
||||
* `CFLAGS=`: Default `CFLAGS` are inherited from the environment.
|
||||
|
||||
* `CPPFLAGS=`: Default `CPPFLAGS` are inherited from the environment.
|
||||
|
||||
* `LDFLAGS=`: Default `LDFLAGS` are inherited from the environment.
|
||||
|
||||
* `LDLIBS=`: Default `LIBLIBS` are inherited from the environment.
|
||||
|
||||
* `prefix=`: Base prefix path for all files, except `sbindir` and
|
||||
`sysconfdir`. Used in concert with the `DESTDIR` variable.
|
||||
|
||||
Defaults to `/usr`.
|
||||
|
||||
* `sbindir=`: Path to where resulting binaries should install to. Used
|
||||
in concert with the `DESTDIR` variable.
|
||||
|
||||
Defaults to `/sbin`.
|
||||
|
||||
* `sysconfdir=`: Path to where finit configuration files should install
|
||||
to. Used in concert with the `DESTDIR` variable.
|
||||
|
||||
Defaults to `/etc`, but is currently unused.
|
||||
|
||||
* `PLUGINS=`: List of stock finit plugins to build and install.
|
||||
|
||||
* `plugindir=`: Absolute path to where finit should look for dynamically
|
||||
loadable plugins at runtime. At installation prepended by `DESTDIR`
|
||||
and `prefix`.
|
||||
|
||||
Defaults to `/lib/finit/plugins`.
|
||||
|
||||
* `DESTDIR=`: Used by packagers and distributions when building a
|
||||
relocatable bundle of files. Always prepended to the `prefix`
|
||||
destination directory.
|
||||
|
||||
**Example**
|
||||
|
||||
First, unpack the archive:
|
||||
|
||||
<kbd>$ tar xfJ finit-1.3.tar.xz; cd finit-1.3/</kbd>
|
||||
|
||||
Then build and install:
|
||||
|
||||
<kbd>$ PLUGINS="initctl.so hwclock.so" DESTDIR=/tmp/finit make install</kbd>
|
||||
|
||||
CC finit.o
|
||||
CC conf.o
|
||||
CC helpers.o
|
||||
CC sig.o
|
||||
CC svc.o
|
||||
CC plugin.o
|
||||
CC strlcpy.o
|
||||
LINK finit
|
||||
CC plugins/initctl.o
|
||||
PLUGIN plugins/initctl.so
|
||||
CC plugins/hwclock.o
|
||||
PLUGIN plugins/hwclock.so
|
||||
INSTALL /tmp/finit/sbin/finit
|
||||
INSTALL /tmp/finit/lib/finit/plugins/initctl.so
|
||||
INSTALL /tmp/finit/lib/finit/plugins/hwclock.so
|
||||
|
||||
In this example the [finit-1.3.tar.xz][10] archive is unpacked to the
|
||||
user's home directory, built and installed to a temporary staging
|
||||
directory. The environment variables `DESTDIR` and `PLUGINS` are
|
||||
changed to suit this particular build.
|
||||
|
||||
|
||||
Running
|
||||
-------
|
||||
|
||||
The default install does not setup finit as the system default
|
||||
`/sbin/init`, neither does it setup an initial `/etc/finit.conf`.
|
||||
|
||||
It is assumed that users of finit are competent enough to either setup
|
||||
finit as their default `/sbin/init` or alter their respective Grub,
|
||||
LOADLIN, LILO, U-Boot/Barebox or RedBoot boot loader configuration to
|
||||
give the kernel the following extra command line:
|
||||
|
||||
init=/sbin/finit
|
||||
|
||||

|
||||
|
||||
|
||||
Debugging
|
||||
---------
|
||||
|
||||
Add `finit_debug`, or `--debug`, to the kernel command line to
|
||||
enable trace messages. A console getty is always started, see the file
|
||||
`finit.h` for more useful compile-time tweaks:
|
||||
|
||||
init=/sbin/finit --debug
|
||||
|
||||
|
||||
Origin & References
|
||||
-------------------
|
||||
|
||||
This is the continuation of the [original finit] by [Claudio Matsuoka],
|
||||
which in turn was reverse engineered from syscalls of the
|
||||
[EeePC fastinit] -- "gaps filled with frog DNA ..."
|
||||
|
||||
Finit is currently being developed and maintained by [Joachim Nilsson]
|
||||
at [GitHub]. Please file bug reports, clone it, or send pull requests
|
||||
for bug fixes and proposed extensions.
|
||||
|
||||
[1]: https://en.wikipedia.org/wiki/Process_supervision
|
||||
[2]: http://cr.yp.to/daemontools.html
|
||||
[3]: http://smarden.org/runit/
|
||||
[4]: http://en.wikipedia.org/wiki/Init
|
||||
[5]: http://en.wikipedia.org/wiki/Runlevel
|
||||
[6]: http://upstart.ubuntu.com/
|
||||
[7]: http://www.freedesktop.org/wiki/Software/systemd/
|
||||
[8]: http://www.gentoo.org/proj/en/base/openrc/
|
||||
[9]: https://github.com/troglobit/troglos
|
||||
[10]: ftp://troglobit.com/finit/finit-1.3.tar.xz
|
||||
[run-parts(8)]: http://manpages.debian.org/cgi-bin/man.cgi?query=run-parts
|
||||
[original finit]: http://helllabs.org/finit/
|
||||
[EeePC fastinit]: http://wiki.eeeuser.com/boot_process:the_boot_process
|
||||
[Claudio Matsuoka]: https://github.com/cmatsuoka
|
||||
[Joachim Nilsson]: http://troglobit.com
|
||||
[GitHub]: https://github.com/troglobit/finit
|
||||
[Travis]: https://travis-ci.org/troglobit/finit
|
||||
[Travis Status]: https://travis-ci.org/troglobit/finit.png?branch=master
|
||||
[Coverity Scan]: https://scan.coverity.com/projects/3545
|
||||
[Coverity Status]: https://scan.coverity.com/projects/3545/badge.svg
|
||||
|
||||
<!--
|
||||
-- Local Variables:
|
||||
-- mode: markdown
|
||||
-- End:
|
||||
-->
|
||||
-91
@@ -1,91 +0,0 @@
|
||||
==============================================================================
|
||||
Finit — A fast plugin-based /sbin/init with service monitoring
|
||||
==============================================================================
|
||||
|
||||
Welcome to finit!
|
||||
|
||||
This is a heavily extended version of the original /sbin/init replacement
|
||||
finit_. The original was a reimplementation of the EeePC "fastinit" daemon
|
||||
based on its system calls with gaps filled with frog DNA.
|
||||
|
||||
Focus of this extended version is on small embedded GNU/Linux systems and
|
||||
headless miniature servers with a need for extremely fast boot. In such
|
||||
environments configurations rarely change and setup is rather static and
|
||||
straight forward.
|
||||
|
||||
In the world of finit we write C "scripts" to boot our system, this is what
|
||||
gives the system its raw performance and the user full control.
|
||||
|
||||
If you chose finit you know what you want, a fast boot with no hassle.
|
||||
|
||||
|
||||
Features
|
||||
--------
|
||||
|
||||
**Service monitoring**
|
||||
Restarting a service when it exits
|
||||
|
||||
**Plugins**
|
||||
Extend and modify finit behavior. See examples in plugins/ directory.
|
||||
Plugin capabilities:
|
||||
|
||||
* Service callbacks — should the service run/restart/stop?
|
||||
* Hooks — hook into the boot at predefined points to extend finit
|
||||
* I/O — listen to external events and control finit behaviour/services
|
||||
|
||||
Most extensions and functionality not purely related to what an /sbin/init
|
||||
needs to start a system from the original finit_ has been reactored into
|
||||
plugins with either hooks or I/O demands.
|
||||
|
||||
|
||||
/etc/finit.conf
|
||||
---------------
|
||||
|
||||
Contrary to most script based init alternatives (SysV init_, upstart_, OpenRC_
|
||||
and the likes) finit reads its configuration from /etc/finit.conf, see the
|
||||
source code for available options.
|
||||
|
||||
Try out the examples/finit.conf for a Debian 6.0 example configuration
|
||||
capable of service monitoring SSH, sysklogd, gdm and a console getty!
|
||||
|
||||
|
||||
/etc/finit.d
|
||||
------------
|
||||
|
||||
At the end of the boot, when networking and all services are up, finit calls
|
||||
its built-in run-parts(8) on the /etc/finit.d/ directory, akin to how the
|
||||
/ec/rc.local file works in most other inits, only finit runs a directory of
|
||||
scripts. This replaces the earlier /usr/sbin/services.sh support of the
|
||||
original finit_.
|
||||
|
||||
|
||||
Rebooting and Halting
|
||||
---------------------
|
||||
|
||||
Finit handles SIGUSR1 and SIGUSR2 for reboot and halt, and listens to
|
||||
/dev/initctl so standard Linux reboot and halt commands should also
|
||||
work.
|
||||
|
||||
|
||||
Debugging
|
||||
---------
|
||||
|
||||
Add finit_debug, or --debug, to the kernel command line to enable trace
|
||||
messages. A console getty is always started, see the file finit.h for
|
||||
more useful comile-time tweaks.
|
||||
|
||||
Contact
|
||||
-------
|
||||
|
||||
Finit is maintained collaborativly at https://github.com/troglobit/finit —
|
||||
please file a bug report, clone it, or send pull requests for bug fixes and
|
||||
proposed extensions, or become a co-maintainer by contacting the main author.
|
||||
|
||||
Regards
|
||||
/Joachim Nilsson <troglobit@gmail.com>
|
||||
|
||||
.. _finit: http://helllabs.org/finit/
|
||||
.. _init: http://savannah.nongnu.org/projects/sysvinit
|
||||
.. _upstart: http://upstart.ubuntu.com/
|
||||
.. _openrc: http://www.gentoo.org/proj/en/base/openrc/
|
||||
|
||||
@@ -1,5 +0,0 @@
|
||||
* FHS changes, see http://askubuntu.com/questions/57297/why-has-var-run-been-migrated-to-run
|
||||
* Look at Erik Troan's nash linuxrc parser for more inspiration
|
||||
* Look at how to support a standard SysV init runlevel mechanism
|
||||
* Arguments to finit, like to SysV init "init q" to reload finit.conf at runtime, etc.
|
||||
* Implement initctl stop|start|reload <SVC> and service <SVC> stop|start|reload on top
|
||||
@@ -0,0 +1,288 @@
|
||||
Goals of Finit
|
||||
==============
|
||||
|
||||
The intent of finit is to monitor not just processes, but to supervise
|
||||
an entire system and the behavior of certain processes that declare
|
||||
themselves to be finit compliant. Similar to launchd, the goal of
|
||||
finit is to be a replacement for:
|
||||
|
||||
* init
|
||||
* inetd
|
||||
* crond
|
||||
* watchdogd
|
||||
|
||||
A small and simple replacement, primarily for embedded systems, with a
|
||||
very low dependency on external packages.
|
||||
|
||||
|
||||
General
|
||||
-------
|
||||
|
||||
* Add compile-time supoprt for running `/bin/sh` instead of `getty`
|
||||
* Add support for `init <q | reload-configuration>` and `SIGHUP` to
|
||||
have finit reload its `finit.conf`, but also
|
||||
* Add support for inotify to automatically reload `finit.conf`
|
||||
* Implement `initctl stop|start|restart|reload|status <SVC>` and
|
||||
`service <SVC> stop|start|restart|reload|status` on top
|
||||
* Add PRE and POST hooks for when switching between runlevels
|
||||
* Add support for `init -v,--version | version`
|
||||
* Cleanup move sources from top-level directory to `src/` and `include/`
|
||||
* Make sure to install `queue.h` to `$(PREFIX)/include/finit/queue.h`
|
||||
* Move `finit.conf` "check" command to plugin which checks `/etc/fstab`
|
||||
instead. This is the de-facto practice. But keep the check command
|
||||
for really low-end systems w/o `/etc/fstab`.
|
||||
|
||||
|
||||
Init
|
||||
----
|
||||
|
||||
Finit in itself is not SysV Init compatible, it doesn't use `/etc/rc.d`
|
||||
and `/etc/inet.d` scripts to boot the system. However, a plausible way
|
||||
to achieve compatibility would be to add a plugin to finit which reads
|
||||
`/etc/inittab` to be able to start standard Linux systems.
|
||||
|
||||
|
||||
Inetd
|
||||
-----
|
||||
|
||||
Simple way of running Internet services on demand, like the old inetd:
|
||||
|
||||
inetd PORT/PROTO <wait|nowait> [@USER[:GROUP]] /path/to/daemon args -- desc
|
||||
|
||||
Examples:
|
||||
|
||||
# Inetd services, launched on demand
|
||||
inetd ssh/tcp nowait [2345] @root:root /usr/sbin/sshd -i -- SSH daemon
|
||||
|
||||
In keeping with the finit tradition, an optional callback can be setup
|
||||
to each inetd service. When a client connects the finit will call the
|
||||
callback with a `struct in_pktinfo` argument which the callback then can
|
||||
allowed or deny.
|
||||
|
||||
Alternatively, borrowing slightly from TCP wrappers by Wietse Venema, a
|
||||
set of `allow` and `deny` directives can be added to `finit.conf` to
|
||||
control inetd services. It could be what IP addreses, networks or
|
||||
interfaces are allowed to connect to the given inetd services. To start
|
||||
with the easiest (and what we need for WeOS at Westermo) is allow/deny
|
||||
per iface.
|
||||
|
||||
# Disable access to SSH
|
||||
deny ssh all
|
||||
# Allow SSH connections originating from eth0
|
||||
allow ssh eth0
|
||||
|
||||
Another option, to further extend the Inetd capabilities, is a separate
|
||||
`finetd.conf` to list services. This would be beneficial when running
|
||||
an SSH service on different ports on different interfaces:
|
||||
|
||||
# Run SSH on port 22 on all interfaces except upstream
|
||||
tcp ssh {
|
||||
listen = *, !wan0
|
||||
exec = dropbear -i
|
||||
}
|
||||
|
||||
# Run SSH on non-standard port 222 for upstream interface
|
||||
tcp ssh {
|
||||
port = 222
|
||||
listen = wan0
|
||||
exec = dropbear -i
|
||||
wait = yes
|
||||
}
|
||||
|
||||
# Run TFTP service on all interfaces except upstream interface
|
||||
udp tftp {
|
||||
listen = *, !wan0
|
||||
exec = uftpd -i -t
|
||||
user = root
|
||||
}
|
||||
|
||||
or, more concise
|
||||
|
||||
# System has four interfaces: wan0, eth0, eth1, eth2
|
||||
# This runs SSH on only three, with various ports
|
||||
tcp ssh {
|
||||
listen = wan0:222 eth0:22 eth1:22
|
||||
exec = /usr/sbin/dropbear -i
|
||||
wait = yes
|
||||
}
|
||||
|
||||
this would be equivalent
|
||||
|
||||
tcp ssh {
|
||||
listen = wan0:222 !eth2
|
||||
exec = /usr/sbin/dropbear -i
|
||||
wait = yes
|
||||
}
|
||||
|
||||
Syntax similar to [xinetd](http://en.wikipedia.org/wiki/Xinetd)
|
||||
|
||||
### Custom Inet Port for Common Services
|
||||
|
||||
- How to do this, without an obtrusive syntax?
|
||||
|
||||
Maybe like this? Then we can still refer to it as the time protocol,
|
||||
and have multiple entries.
|
||||
|
||||
inetd time:8037/udp wait [2345] @root:root internal
|
||||
inetd time:3737/udp wait [2345] @root:root internal
|
||||
|
||||
But what if we want to have different allow/deny rules per service?
|
||||
Here's a proposal, similar to user/pass encoding in URI's. This variant
|
||||
could potentially be a lot easier to implement and also to maintain for
|
||||
users, compared to the above allow/deny/xinetd variants.
|
||||
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh@eth1:22/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
or
|
||||
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh@*:22/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
or
|
||||
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
inetd ssh/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
|
||||
All three versions would be equivalent, except for the first one when
|
||||
there are more interfaces than just eth0 and eth1. The latter two would
|
||||
however be equivalent.
|
||||
|
||||
Multiple `inetd ssh` entries with the same port will not be unique, they
|
||||
will reuse all settings of the first listed entry. However, an entry
|
||||
with a unique port and interface will be registered as a unique service.
|
||||
|
||||
**Note:** Also, there is currently no verification that the same port is
|
||||
used more than once. So a standard http service will clash with an
|
||||
ssh entry ssh@*:80/tcp ... why you would ever want that?
|
||||
|
||||
Inetd callbacks are no different from other callbacks. They match to an
|
||||
inetd line using the command. So multiple `/usr/bin/sshd` inetd lines
|
||||
in `finit.conf` will all use the same callback. However, the callback
|
||||
will be called with the Internet port and interface as arguments. Like
|
||||
this:
|
||||
|
||||
svc_cmd_t sshd_callback(svc_t *svc, int port, char *ifname)
|
||||
{
|
||||
if (!cfg_is_ssh_enabled(ifname, port))
|
||||
return SVC_STOP;
|
||||
|
||||
return SVC_START;
|
||||
}
|
||||
|
||||
As usual, the callback is run in a separate process context and it is up
|
||||
to the implementer to return `SVC_STOP` or `SVC_START` (`SVC_RELOAD` is
|
||||
not applicable for inetd services).
|
||||
|
||||
|
||||
### Internal inetd services
|
||||
|
||||
There are a few standard services that inetd usually had built-in:
|
||||
|
||||
- time
|
||||
- echo
|
||||
- chargen
|
||||
- discard
|
||||
|
||||
At least 'time' will be implemented in finit, as a plugin, to serve as a
|
||||
simple means of testing inetd functionality stand-alone, but also as a
|
||||
very rudimentary time server for rdate clients.
|
||||
|
||||
Example:
|
||||
|
||||
# Built-in inetd time service, launched on demand
|
||||
inetd time/udp wait [2345] @root:root internal
|
||||
|
||||
|
||||
Crond
|
||||
-----
|
||||
|
||||
Requirements are quite rudimentary, basic cron functionality, mainly
|
||||
system-level timed periodic tasks:
|
||||
|
||||
* Periodically run a task, in a matching runlevel
|
||||
* Optionally run as non-root (`crontab -e` as operator)
|
||||
|
||||
Proposed syntax:
|
||||
|
||||
# Crontab
|
||||
cron @YY-mm-ddTHH:MM [LVLS] /path/to/cmd [ARGS] -- Optional descr
|
||||
|
||||
# One-shot 'at' command
|
||||
at @YY-mm-ddTHH:MM [LVLS] /path/to/cmd [ARGS] -- Optional descr
|
||||
|
||||
Notice the ISO date in notation. The runlevels is extra filtering
|
||||
sugar. E.g., if cron service is only allowed in runlevels two or three
|
||||
it will not start if system currently is in runlevel four.
|
||||
|
||||
To run a command as another user the `.conf` file must have a that
|
||||
owner. E.g., `/etc/finit.d/extra.conf` may be owned by operator and
|
||||
only hold `cron ...` lines.
|
||||
|
||||
What would be extremely useful is if `initctl`, or a homegrown `at`,
|
||||
could support the basic functionality of the `at` command directly from
|
||||
the shell -- that way setting up one-time jobs would not entail
|
||||
re-reading `/etc/finit.conf`
|
||||
|
||||
|
||||
Watchdog
|
||||
--------
|
||||
|
||||
Support for monitoring the health of the system and its processes.
|
||||
|
||||
* Add support for a `/dev/watchdog` built-in to replace both the BusyBox
|
||||
watchdogd and my own refreshed uClinux-dist adaptation,
|
||||
[watchdogd](https://github.com/troglobit/watchdogd)
|
||||
* Add a system supervisor (pmon) to optionally reboot the system when a
|
||||
process stops responding, or when a respawn limit has been reached, as
|
||||
well as when system load gets too high. For details on UNIX loadavg,
|
||||
see http://stackoverflow.com/questions/11987495/linux-proc-loadavg
|
||||
- Default to 0.7 as MAX recommended load before warning and 0.9 reboot
|
||||
* API for processes to register with the watchdog, libwdt
|
||||
- Deeper monitoring of a process' main loop by instrumenting
|
||||
- If a process is not heard from within its subscribed period time
|
||||
reboot system or restart process.
|
||||
- Add client libwdt library, inspired by old Westermo API and the
|
||||
[libwdt] API published in the [Fritz!Box source dump], take for
|
||||
instance the `fritzbox7170-source-files-04.87-tar.gz` drop and see
|
||||
the `GPL-release_kernel.tgz` in `drivers/char/avm_new/` for the
|
||||
kernel driver, and the `LGPL-GPL-release_target_tools.tgz` in `wdt/`
|
||||
for the userland API.
|
||||
- When a client process (a standard app/daemon instrumented with
|
||||
libwdt calls in its main loop) registers with the watchdog, we raise
|
||||
the RT priority to 98 (just below the kernel watchdog in prio).
|
||||
This to ensure that system monitoring goes before anything else in
|
||||
the system.
|
||||
- Use UNIX domain sockets for communication between daemon and clients
|
||||
* Separate `/etc/watchdog.conf` configuration file, or a perhaps
|
||||
support for a more generic `/etc/finit.d/PLUGIN.conf`?
|
||||
* Support enable/disable watchdog features:
|
||||
- Supervise processes,
|
||||
- CPU loadavg,
|
||||
- Watch for file descriptor leaks,
|
||||
- etc.
|
||||
|
||||
|
||||
Documentation
|
||||
-------------
|
||||
|
||||
* Write man pages for finit and `finit.conf`, steal from the excellent
|
||||
`pimd` man pages ...
|
||||
* Update Debian `finit.conf` example with runlevels, `tty/console` and
|
||||
dependency handling for Debian 8 (the dreaded systemd release).
|
||||
|
||||
|
||||
Investigation
|
||||
-------------
|
||||
|
||||
* [FHS changes](http://askubuntu.com/questions/57297/why-has-var-run-been-migrated-to-run)
|
||||
affecting runtime status, plugins, etc.
|
||||
|
||||
[libwdt]: http://www.wehavemorefun.de/fritzbox/Libwdt.so
|
||||
[Fritz!Box source dump]: ftp://ftp.avm.de/fritz.box/fritzbox.fon_wlan_7170/x_misc/opensrc/
|
||||
|
||||
<!--
|
||||
-- Local Variables:
|
||||
-- mode: markdown
|
||||
-- End:
|
||||
-->
|
||||
@@ -1,7 +1,13 @@
|
||||
# Top directory for building complete system, fall back to this directory
|
||||
ROOTDIR ?= $(TOPDIR)
|
||||
|
||||
# Some junk files we always want to be removed when doing a make clean.
|
||||
JUNK = *~ *.bak *.aux *.dvi *.idx *.ind *.log *.ps *.map .*.d DEADJOE semantic.cache *.gdb *.elf core core.*
|
||||
MAKE := @$(MAKE)
|
||||
MAKEFLAGS = --no-print-directory
|
||||
JUNK = *~ *.bak *.aux *.dvi *.idx *.ind *.log *.ps *.map .*.d DEADJOE semantic.cache *.gdb *.elf core core.*
|
||||
MAKE := @$(MAKE)
|
||||
MAKEFLAGS = --no-print-directory --silent
|
||||
CHECK := cppcheck $(CPPFLAGS) --quiet --enable=all
|
||||
INSTALL := install --backup=off
|
||||
STRIPINST := $(INSTALL) -s --strip-program=$(CROSS)strip -m 0755
|
||||
|
||||
# Smart autodependecy generation via GCC -M.
|
||||
.%.d: %.c
|
||||
|
||||
@@ -21,118 +21,270 @@
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "svc.h"
|
||||
#include "tty.h"
|
||||
#include "lite.h"
|
||||
#include "helpers.h"
|
||||
|
||||
/* Match one command. */
|
||||
#define MATCH_CMD(l, c, x) \
|
||||
(!strncmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
|
||||
#define MATCH_CMD(l, c, x) \
|
||||
(!strncasecmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
|
||||
|
||||
|
||||
static char *build_cmd(char *cmd, char *line, int len)
|
||||
static char *strip_line(char *line)
|
||||
{
|
||||
int l;
|
||||
char *c;
|
||||
char *ptr;
|
||||
|
||||
/* Trim leading whitespace */
|
||||
while (*line && (*line == ' ' || *line == '\t'))
|
||||
while (*line && isblank(*line))
|
||||
line++;
|
||||
|
||||
if (!cmd) {
|
||||
cmd = malloc (strlen(line) + 1);
|
||||
if (!cmd) {
|
||||
_e("No memory left for '%s'", line);
|
||||
return NULL;
|
||||
}
|
||||
*cmd = 0;
|
||||
}
|
||||
c = cmd + strlen(cmd);
|
||||
for (l = 0; *line && *line != '#' && *line != '\t' && l < len; l++)
|
||||
*c++ = *line++;
|
||||
*c = 0;
|
||||
/* Strip any comment at end of line */
|
||||
ptr = line;
|
||||
while (*ptr && *ptr != '#')
|
||||
ptr++;
|
||||
*ptr = 0;
|
||||
|
||||
_d("cmd = %s", cmd);
|
||||
return cmd;
|
||||
return line;
|
||||
}
|
||||
|
||||
void parse_finit_conf(char *file)
|
||||
/* Convert optional "[!123456789S]" string into a bitmask */
|
||||
int parse_runlevels(char *runlevels)
|
||||
{
|
||||
int i, not = 0, bitmask = 0;
|
||||
|
||||
if (!runlevels)
|
||||
runlevels = "[234]";
|
||||
i = 1;
|
||||
while (i) {
|
||||
int level;
|
||||
char lvl = runlevels[i++];
|
||||
|
||||
if (']' == lvl || 0 == lvl)
|
||||
break;
|
||||
if ('!' == lvl) {
|
||||
not = 1;
|
||||
bitmask = 0x3FE;
|
||||
continue;
|
||||
}
|
||||
|
||||
if ('s' == lvl || 'S' == lvl)
|
||||
lvl = '0';
|
||||
|
||||
level = lvl - '0';
|
||||
if (level > 9 || level < 0)
|
||||
continue;
|
||||
|
||||
if (not)
|
||||
CLRBIT(bitmask, level);
|
||||
else
|
||||
SETBIT(bitmask, level);
|
||||
}
|
||||
|
||||
return bitmask;
|
||||
}
|
||||
|
||||
static int parse_conf(char *file)
|
||||
{
|
||||
FILE *fp;
|
||||
char line[LINE_SIZE];
|
||||
char line[LINE_SIZE] = "";
|
||||
char cmd[CMD_SIZE];
|
||||
char *x;
|
||||
const char *err = NULL;
|
||||
|
||||
fp = fopen(file, "r");
|
||||
if (!fp)
|
||||
return 1;
|
||||
|
||||
/*
|
||||
* If not standard finit.conf, then we want to show just the base name
|
||||
* Loading configuration ............. vs
|
||||
* Loading services configuration ....
|
||||
*/
|
||||
if (!string_match (file, FINIT_CONF)) {
|
||||
/* Remove leading path */
|
||||
x = strrchr(file, '/');
|
||||
if (!x) x = file;
|
||||
else x++;
|
||||
|
||||
/* Remove ending .conf */
|
||||
strlcpy(line, x, sizeof(line));
|
||||
x = strstr(line, ".conf");
|
||||
if (x) *x = 0;
|
||||
|
||||
/* Add empty space. */
|
||||
strcat(line, " ");
|
||||
}
|
||||
|
||||
print(0, "Loading %sconfiguration", line);
|
||||
while (!feof(fp)) {
|
||||
if (!fgets(line, sizeof(line), fp))
|
||||
continue;
|
||||
chomp(line);
|
||||
_d("conf: %s", line);
|
||||
|
||||
/* Skip comments. */
|
||||
if (MATCH_CMD(line, "#", x))
|
||||
continue;
|
||||
|
||||
/* Do this before mounting / read-write
|
||||
* XXX: Move to plugin which checks /etc/fstab instead */
|
||||
if (MATCH_CMD(line, "check ", x)) {
|
||||
char *dev = strip_line(x);
|
||||
|
||||
strcpy(cmd, "/sbin/fsck -C -a ");
|
||||
strlcat(cmd, dev, sizeof(cmd));
|
||||
run_interactive(cmd, "Checking file system %s", dev);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
if (MATCH_CMD(line, "user ", x)) {
|
||||
if (username) free(username);
|
||||
username = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "host ", x)) {
|
||||
if (hostname) free(hostname);
|
||||
hostname = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
|
||||
if (MATCH_CMD(line, "module ", x)) {
|
||||
char *mod = strip_line(x);
|
||||
|
||||
strcpy(cmd, "/sbin/modprobe ");
|
||||
strlcat(cmd, mod, sizeof(cmd));
|
||||
run_interactive(cmd, "Loading kernel module %s", mod);
|
||||
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "mknod ", x)) {
|
||||
char *dev = strip_line(x);
|
||||
|
||||
strcpy(cmd, "/bin/mknod ");
|
||||
strlcat(cmd, dev, sizeof(cmd));
|
||||
run_interactive(cmd, "Creating device node %s", dev);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
if (MATCH_CMD(line, "network ", x)) {
|
||||
if (network) free(network);
|
||||
network = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
/* This is the directory from which executable scripts and
|
||||
* any finit include files are read, default /etc/finit.d/ */
|
||||
if (MATCH_CMD(line, "runparts ", x)) {
|
||||
if (rcsd) free(rcsd);
|
||||
rcsd = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
/* Parse any include file, use rcsd if absolute path not given */
|
||||
if (MATCH_CMD(line, "include ", x)) {
|
||||
char *file = strip_line(x);
|
||||
|
||||
strlcpy(cmd, file, sizeof(cmd));
|
||||
if (!fexist(cmd)) {
|
||||
/* ... try /etc/finit.d/ as prefix */
|
||||
snprintf(cmd, sizeof(cmd), "%s/%s", rcsd, file);
|
||||
if (!fexist(cmd))
|
||||
continue;
|
||||
}
|
||||
|
||||
parse_conf(cmd);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "startx ", x)) {
|
||||
svc_register(SVC_CMD_SERVICE, strip_line(x), username);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "shutdown ", x)) {
|
||||
if (sdown) free(sdown);
|
||||
sdown = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
|
||||
/* The desired runlevel to start when leaving
|
||||
* bootstrap (S). Finit supports 1-9, but most
|
||||
* systems only use 1-6, where 6 is reserved for
|
||||
* reboot */
|
||||
if (MATCH_CMD(line, "runlevel ", x)) {
|
||||
char *token = strip_line(x);
|
||||
|
||||
cfglevel = strtonum(token, 1, 9, &err);
|
||||
if (err)
|
||||
cfglevel = RUNLEVEL;
|
||||
if (cfglevel < 1 || cfglevel > 9 || cfglevel == 6)
|
||||
cfglevel = 2; /* Fallback */
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Monitored daemon, will be respawned on exit, as
|
||||
* long as the (optional) service callback returns
|
||||
* non-zero */
|
||||
if (MATCH_CMD(line, "service ", x)) {
|
||||
svc_register(SVC_CMD_SERVICE, x, NULL);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* One-shot task, will not be respawned. Only runs if
|
||||
* the (optional) service callback returns true */
|
||||
if (MATCH_CMD(line, "task ", x)) {
|
||||
svc_register(SVC_CMD_TASK, x, NULL);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Like task but waits for completion, useful w/ [S] */
|
||||
if (MATCH_CMD(line, "run ", x)) {
|
||||
svc_register(SVC_CMD_RUN, x, NULL);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Classic inetd service */
|
||||
if (MATCH_CMD(line, "inetd ", x)) {
|
||||
svc_register(SVC_CMD_INETD, x, NULL);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (MATCH_CMD(line, "console ", x)) {
|
||||
if (console) free(console);
|
||||
console = strdup(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "tty ", x)) {
|
||||
tty_register(strip_line(x));
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
fclose(fp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int parse_finit_conf(char *file)
|
||||
{
|
||||
int result;
|
||||
|
||||
/* Default username and hostname */
|
||||
username = strdup(DEFUSER);
|
||||
hostname = strdup(DEFHOST);
|
||||
rcsd = strdup(FINIT_RCSD);
|
||||
|
||||
if ((fp = fopen(file, "r")) != NULL) {
|
||||
char *x;
|
||||
result = parse_conf(file);
|
||||
if (!tty_num()) {
|
||||
char *fallback = FALLBACK_SHELL;
|
||||
|
||||
_d("Parse %s ...", file);
|
||||
while (!feof(fp)) {
|
||||
if (!fgets(line, sizeof(line), fp))
|
||||
continue;
|
||||
chomp(line);
|
||||
if (console)
|
||||
fallback = console;
|
||||
|
||||
_d("conf: %s", line);
|
||||
|
||||
/* Skip comments. */
|
||||
if (MATCH_CMD(line, "#", x)) {
|
||||
continue;
|
||||
}
|
||||
/* Do this before mounting / read-write */
|
||||
if (MATCH_CMD(line, "check ", x)) {
|
||||
strcpy(cmd, "/sbin/fsck -C -a ");
|
||||
build_cmd(cmd, x, CMD_SIZE);
|
||||
run_interactive(cmd, "Checking file system integrity on %s", x);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "user ", x)) {
|
||||
if (username) free(username);
|
||||
username = build_cmd(NULL, x, USERNAME_SIZE);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "host ", x)) {
|
||||
if (hostname) free(hostname);
|
||||
hostname = build_cmd(NULL, x, HOSTNAME_SIZE);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "shutdown ", x)) {
|
||||
if (sdown) free(sdown);
|
||||
sdown = build_cmd(NULL, x, CMD_SIZE);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "module ", x)) {
|
||||
strcpy(cmd, "/sbin/modprobe ");
|
||||
build_cmd(cmd, x, CMD_SIZE);
|
||||
run_interactive(cmd, " Loading module %s", x);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "mknod ", x)) {
|
||||
strcpy(cmd, "/bin/mknod ");
|
||||
build_cmd(cmd, x, CMD_SIZE);
|
||||
run_interactive(cmd, " Creating device node %s", x);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "network ", x)) {
|
||||
if (network) free(network);
|
||||
network = build_cmd(NULL, x, CMD_SIZE);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "startx ", x)) {
|
||||
svc_register(x, username);
|
||||
continue;
|
||||
}
|
||||
if (MATCH_CMD(line, "service ", x)) {
|
||||
svc_register(x, NULL);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
tty_register(fallback);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Executable
+65
@@ -0,0 +1,65 @@
|
||||
#!/bin/sh
|
||||
### BEGIN INIT INFO
|
||||
# Provides: keyboard-setup
|
||||
# Required-Start: mountkernfs
|
||||
# Required-Stop:
|
||||
# Should-Start: keymap udev
|
||||
# X-Start-Before: checkroot
|
||||
# Default-Start: S
|
||||
# Default-Stop:
|
||||
# X-Interactive: true
|
||||
# Short-Description: Set preliminary keymap
|
||||
# Description: Set the console keyboard as early as possible
|
||||
# so during the file systems checks the administrator
|
||||
# can interact. At this stage of the boot process
|
||||
# only the ASCII symbols are supported.
|
||||
### END INIT INFO
|
||||
|
||||
set -e
|
||||
|
||||
# This script is not used by keyboard-configuration. It is used
|
||||
# jointly by console-setup and console-setup-mini
|
||||
|
||||
test -f /bin/setupcon || exit 0
|
||||
|
||||
if [ -f /lib/lsb/init-functions ]; then
|
||||
. /lib/lsb/init-functions
|
||||
else
|
||||
log_action_begin_msg () {
|
||||
echo -n "$@... "
|
||||
}
|
||||
|
||||
log_action_end_msg () {
|
||||
if [ "$1" -eq 0 ]; then
|
||||
echo done.
|
||||
else
|
||||
echo failed.
|
||||
fi
|
||||
}
|
||||
fi
|
||||
|
||||
case "$1" in
|
||||
stop)
|
||||
# keyboard-setup isn't a daemon
|
||||
;;
|
||||
start|force-reload|restart|reload)
|
||||
case `readlink /proc/self/fd/2` in
|
||||
/dev/tty[0-9]*|/dev/vc/[0-9]*|/dev/console)
|
||||
log_action_begin_msg "Setting preliminary keymap"
|
||||
if setupcon -k; then
|
||||
log_action_end_msg 0
|
||||
else
|
||||
log_action_end_msg $?
|
||||
fi
|
||||
;;
|
||||
*)
|
||||
exit 0
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
*)
|
||||
echo 'Usage: /etc/init.d/keyboard-setup {start|reload|restart|force-reload|stop}'
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
Executable
+81
@@ -0,0 +1,81 @@
|
||||
#!/bin/sh
|
||||
### BEGIN INIT INFO
|
||||
# Provides: acpid
|
||||
# Required-Start: $remote_fs $syslog
|
||||
# Required-Stop: $remote_fs $syslog
|
||||
# X-Start-Before: kdm gdm xdm hal
|
||||
# X-Stop-After: kdm gdm xdm hal
|
||||
# Default-Start: 2 3 4 5
|
||||
# Default-Stop:
|
||||
# Short-Description: Start the Advanced Configuration and Power Interface daemon
|
||||
# Description: Provide a socket for X11, hald and others to multiplex
|
||||
# kernel ACPI events.
|
||||
### END INIT INFO
|
||||
|
||||
set -e
|
||||
|
||||
ACPID="/usr/sbin/acpid"
|
||||
DEFAULTS="/etc/default/acpid"
|
||||
|
||||
# Check for daemon presence
|
||||
[ -x "$ACPID" ] || exit 0
|
||||
|
||||
OPTIONS=""
|
||||
MODULES=""
|
||||
# Include acpid defaults if available
|
||||
[ -r "$DEFAULTS" ] && . "$DEFAULTS"
|
||||
|
||||
# Get lsb functions
|
||||
. /lib/lsb/init-functions
|
||||
|
||||
# As the name says. If the kernel supports modules, it'll try to load
|
||||
# the ones listed in "MODULES".
|
||||
load_modules() {
|
||||
[ -f /proc/modules ] || return 0
|
||||
if [ "$MODULES" = "all" ]; then
|
||||
MODULES="$(sed -rn 's#^(/lib/modules/[^/]+/)?kernel/(drivers|ubuntu)/acpi/([^/]+/)*(.*)\.ko:.*#\4#p' "/lib/modules/$(uname -r)/modules.dep")"
|
||||
fi
|
||||
|
||||
if [ -z "$MODULES" ]; then
|
||||
return
|
||||
fi
|
||||
|
||||
log_begin_msg "Loading ACPI kernel modules..."
|
||||
# work around a bug in initramfs which leaks this env var Launchpad #291619
|
||||
# and a bug in modprobe --all --quiet which doesn't load all modules and
|
||||
# exits with non-zero exit status Debian #504088
|
||||
unset MODPROBE_OPTIONS
|
||||
modprobe --all --use-blacklist $MODULES 2>/dev/null
|
||||
log_end_msg $?
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
start)
|
||||
load_modules || true
|
||||
log_begin_msg "Starting ACPI services..."
|
||||
start-stop-daemon --start --quiet --oknodo --exec "$ACPID" -- $OPTIONS
|
||||
log_end_msg $?
|
||||
;;
|
||||
stop)
|
||||
log_begin_msg "Stopping ACPI services..."
|
||||
start-stop-daemon --stop --quiet --oknodo --retry 2 --exec "$ACPID"
|
||||
log_end_msg $?
|
||||
;;
|
||||
restart)
|
||||
$0 stop
|
||||
sleep 1
|
||||
$0 start
|
||||
;;
|
||||
reload|force-reload)
|
||||
log_begin_msg "Reloading ACPI services..."
|
||||
start-stop-daemon --stop --signal 1 --exec "$ACPID"
|
||||
log_end_msg $?
|
||||
;;
|
||||
status)
|
||||
status_of_proc "$ACPID" acpid
|
||||
;;
|
||||
*)
|
||||
log_success_msg "Usage: /etc/init.d/acpid {start|stop|restart|reload|force-reload|status}"
|
||||
exit 1
|
||||
esac
|
||||
|
||||
Executable
+259
@@ -0,0 +1,259 @@
|
||||
#!/bin/sh
|
||||
### BEGIN INIT INFO
|
||||
# Provides: kbd
|
||||
# Required-Start: $remote_fs
|
||||
# Required-Stop:
|
||||
# Default-Start: S
|
||||
# Default-Stop:
|
||||
# X-Interactive: true
|
||||
# Description: Set console screen modes and fonts
|
||||
# Short-Description: Prepare console
|
||||
### END INIT INFO
|
||||
|
||||
# This is the boot script for the `kbd' package.
|
||||
# It loads parameters from /etc/kbd/config and maybe loads
|
||||
# default font and map.
|
||||
# (c) 1997 Yann Dirson
|
||||
|
||||
PKG=kbd
|
||||
if [ -r /etc/$PKG/config ]; then
|
||||
. /etc/$PKG/config
|
||||
fi
|
||||
|
||||
if [ -d /etc/$PKG/config.d ]; then
|
||||
for i in `run-parts --list /etc/$PKG/config.d `; do
|
||||
. $i
|
||||
done
|
||||
fi
|
||||
|
||||
# do some magic with the variables for compatibility with the config
|
||||
# file of console-tools
|
||||
for vc in '' `set | grep "^.*_vc[0-9][0-9]*=" | sed 's/^.*\(_vc[0-9][0-9]*\)=.*/\1/'`
|
||||
do
|
||||
eval [ '"'\${SCREEN_FONT$vc}'"' ] && eval CONSOLE_FONT$vc=\${CONSOLE_FONT$vc:-\${SCREEN_FONT$vc}}
|
||||
eval [ '"'\${SCREEN_FONT_MAP$vc}'"' ] && eval FONT_MAP$vc=\${FONT_MAP$vc:-\${SCREEN_FONT_MAP$vc}}
|
||||
eval [ '"'\${APP_CHARSET_MAP$vc}'"' ] && eval CONSOLE_MAP$vc=\${CONSOLE_MAP$vc:-\${APP_CHARSET_MAP$vc}}
|
||||
done
|
||||
|
||||
. /lib/lsb/init-functions
|
||||
|
||||
PATH=/sbin:/bin:/usr/sbin:/usr/bin
|
||||
SETFONT_OPT="-v"
|
||||
|
||||
if which setupcon >/dev/null
|
||||
then
|
||||
HAVE_SETUPCON=yes
|
||||
fi
|
||||
|
||||
# set DEVICE_PREFIX depending on devfs/udev
|
||||
if [ -d /dev/vc ]; then
|
||||
DEVICE_PREFIX="/dev/vc/"
|
||||
else
|
||||
DEVICE_PREFIX="/dev/tty"
|
||||
fi
|
||||
|
||||
# determine the system charmap
|
||||
ENV_FILE=''
|
||||
[ -r /etc/environment ] && ENV_FILE="/etc/environment"
|
||||
[ -r /etc/default/locale ] && ENV_FILE="/etc/default/locale"
|
||||
[ "$ENV_FILE" ] && CHARMAP=$(set -a && . "$ENV_FILE" && locale charmap)
|
||||
if [ "$CHARMAP" = "UTF-8" -a -z "$CONSOLE_MAP" ]
|
||||
then
|
||||
UNICODE_MODE=yes
|
||||
fi
|
||||
|
||||
reset_vga_palette ()
|
||||
{
|
||||
if [ -f /proc/fb ]; then
|
||||
# They have a framebuffer device.
|
||||
# That means we have work to do...
|
||||
echo -n "]R"
|
||||
fi
|
||||
}
|
||||
|
||||
unicode_start_stop ()
|
||||
{
|
||||
vc=$1
|
||||
if [ -n "$UNICODE_MODE" -a -z "`eval echo \\$CONSOLE_MAP_vc$vc`" ]; then
|
||||
action=unicode_start
|
||||
else
|
||||
action=unicode_stop
|
||||
fi
|
||||
if [ "${CONSOLE_FONT}" ]; then
|
||||
$action "${CONSOLE_FONT}" < ${DEVICE_PREFIX}$vc > ${DEVICE_PREFIX}$vc 2> /dev/null || true
|
||||
else
|
||||
$action < ${DEVICE_PREFIX}$vc > ${DEVICE_PREFIX}$vc 2> /dev/null || true
|
||||
fi
|
||||
}
|
||||
|
||||
setup ()
|
||||
{
|
||||
# be sure the main program is installed
|
||||
which setfont >/dev/null || return
|
||||
|
||||
VT="no"
|
||||
# If we can't access the console, quit
|
||||
CONSOLE_TYPE=`fgconsole 2>/dev/null` || return
|
||||
|
||||
if [ ! $CONSOLE_TYPE = "serial" ]; then
|
||||
readlink /proc/self/fd/0 | grep -q -e /dev/vc -e '/dev/tty[^p]' -e /dev/console
|
||||
if [ $? -eq 0 ]; then
|
||||
VT="yes"
|
||||
reset_vga_palette
|
||||
fi
|
||||
fi
|
||||
|
||||
[ $VT = "no" ] && return
|
||||
|
||||
# start vcstime
|
||||
if [ "${DO_VCSTIME}" = "yes" ] && which vcstime >/dev/null; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_begin_msg "Starting clock on text console"
|
||||
vcstime &
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 0
|
||||
fi
|
||||
|
||||
if [ -d /etc/init ] && which initctl >/dev/null; then
|
||||
# Upstart
|
||||
LIST_CONSOLES=`cd /etc/init; find -name 'tty*.conf' -printf '%f ' | sed -e 's/[^0-9 ]//g'`
|
||||
else
|
||||
# traditional SysV init
|
||||
LIST_CONSOLES=`sed -e '/^ *#/d' /etc/inittab | grep -e '\<tty[0-9]*\>' | awk -F: '{printf "%s ", $1}'`
|
||||
fi
|
||||
|
||||
# Global default font+map
|
||||
if [ -z "${HAVE_SETUPCON}" -a "${CONSOLE_FONT}" ]; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_begin_msg "Setting up general console font"
|
||||
sfm="${FONT_MAP}" && [ "$sfm" ] && sfm="-u $sfm"
|
||||
acm="${CONSOLE_MAP}" && [ "$acm" ] && acm="-m $acm"
|
||||
|
||||
# Set for the first 6 VCs (as they are allocated in /etc/inittab)
|
||||
for vc in $LIST_CONSOLES
|
||||
do
|
||||
if ! ( unicode_start_stop $vc \
|
||||
&& setfont -C ${DEVICE_PREFIX}$vc ${SETFONT_OPT} $sfm ${CONSOLE_FONT} $acm )
|
||||
then
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 1
|
||||
break
|
||||
fi
|
||||
done
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 0
|
||||
fi
|
||||
|
||||
# Default to Unicode mode for new VTs?
|
||||
if [ -f /sys/module/vt/parameters/default_utf8 ]; then
|
||||
if [ -n "$UNICODE_MODE" ]; then
|
||||
echo 1
|
||||
else
|
||||
echo 0
|
||||
fi > /sys/module/vt/parameters/default_utf8
|
||||
fi
|
||||
|
||||
# Per-VC font+sfm
|
||||
PERVC_FONTS="`set | grep "^CONSOLE_FONT_vc[0-9]*=" | tr -d \' `"
|
||||
if [ -z "${HAVE_SETUPCON}" -a "${PERVC_FONTS}" ]; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_begin_msg "Setting up per-VC fonts"
|
||||
for font in ${PERVC_FONTS}
|
||||
do
|
||||
# extract VC and FONTNAME info from variable setting
|
||||
vc=`echo $font | cut -b16- | cut -d= -f1`
|
||||
eval font=\$CONSOLE_FONT_vc$vc
|
||||
# eventually find an associated SFM
|
||||
eval sfm=\${FONT_MAP_vc${vc}}
|
||||
[ "$sfm" ] && sfm="-u $sfm"
|
||||
if ! ( unicode_start_stop $vc \
|
||||
&& setfont -C ${DEVICE_PREFIX}$vc ${SETFONT_OPT} $sfm $font )
|
||||
then
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 1
|
||||
break
|
||||
fi
|
||||
done
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 0
|
||||
fi
|
||||
|
||||
|
||||
# Per-VC ACMs
|
||||
PERVC_ACMS="`set | grep "^CONSOLE_MAP_vc[0-9]*=" | tr -d \' `"
|
||||
if [ -z "${HAVE_SETUPCON}" -a "${PERVC_ACMS}" ]; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_begin_msg "Setting up per-VC ACM's"
|
||||
for acm in ${PERVC_ACMS}
|
||||
do
|
||||
# extract VC and ACM_FONTNAME info from variable setting
|
||||
vc=`echo $acm | cut -b15- | cut -d= -f1`
|
||||
eval acm=\$CONSOLE_MAP_vc$vc
|
||||
if ! setfont -C "${DEVICE_PREFIX}$vc" ${SETFONT_OPT} -m "$acm"; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 1
|
||||
break
|
||||
fi
|
||||
done
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 0
|
||||
fi
|
||||
|
||||
|
||||
# screensaver stuff
|
||||
setterm_args=""
|
||||
if [ "$BLANK_TIME" ]; then
|
||||
setterm_args="$setterm_args -blank $BLANK_TIME"
|
||||
fi
|
||||
if [ "$BLANK_DPMS" ]; then
|
||||
setterm_args="$setterm_args -powersave $BLANK_DPMS"
|
||||
fi
|
||||
if [ "$POWERDOWN_TIME" ]; then
|
||||
setterm_args="$setterm_args -powerdown $POWERDOWN_TIME"
|
||||
fi
|
||||
if [ "$setterm_args" ]; then
|
||||
setterm $setterm_args
|
||||
fi
|
||||
|
||||
# Keyboard rate and delay
|
||||
KBDRATE_ARGS=""
|
||||
if [ -n "$KEYBOARD_RATE" ]; then
|
||||
KBDRATE_ARGS="-r $KEYBOARD_RATE"
|
||||
fi
|
||||
if [ -n "$KEYBOARD_DELAY" ]; then
|
||||
KBDRATE_ARGS="$KBDRATE_ARGS -d $KEYBOARD_DELAY"
|
||||
fi
|
||||
if [ -n "$KBDRATE_ARGS" ]; then
|
||||
[ "$VERBOSE" != "no" ] && log_action_begin_msg "Setting keyboard rate and delay"
|
||||
kbdrate -s $KBDRATE_ARGS
|
||||
[ "$VERBOSE" != "no" ] && log_action_end_msg 0
|
||||
fi
|
||||
|
||||
# Inform gpm if present, of potential changes.
|
||||
if [ -f /var/run/gpm.pid ]; then
|
||||
kill -s WINCH `cat /var/run/gpm.pid` 2> /dev/null
|
||||
fi
|
||||
|
||||
# Allow user to remap keys on the console
|
||||
if [ -z "${HAVE_SETUPCON}" -a -r /etc/$PKG/remap ]; then
|
||||
dumpkeys < ${DEVICE_PREFIX}1 | sed -f /etc/$PKG/remap | loadkeys --quiet
|
||||
fi
|
||||
|
||||
# Set LEDS here
|
||||
if [ -n "$LEDS" ]; then
|
||||
for i in $LIST_CONSOLES
|
||||
do
|
||||
setleds -D $LEDS < $DEVICE_PREFIX$i
|
||||
done
|
||||
fi
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
start|reload|restart|force-reload)
|
||||
if [ -n "$HAVE_SETUPCON" ]
|
||||
then
|
||||
log_action_msg "Setting console screen modes"
|
||||
else
|
||||
log_action_msg "Setting console screen modes and fonts"
|
||||
fi
|
||||
setup
|
||||
[ -z "$HAVE_SETUPCON" ] || log_action_msg "Skipping font and keymap setup (handled by console-setup)"
|
||||
;;
|
||||
stop)
|
||||
;;
|
||||
*)
|
||||
setup
|
||||
;;
|
||||
esac
|
||||
|
||||
:
|
||||
|
||||
@@ -1,12 +0,0 @@
|
||||
# Simple Debian finit.conf
|
||||
check /dev/vda1
|
||||
module evdev
|
||||
module loop
|
||||
module psmouse
|
||||
user admin
|
||||
host testbed
|
||||
network service networking start
|
||||
service /sbin/klogd -n -- Kernel logging server
|
||||
service /sbin/syslogd -n -- Syslog server
|
||||
service /usr/sbin/sshd -D -- OpenSSH server
|
||||
service /usr/sbin/gdm -- GNOME Display Manager
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Improved fast init
|
||||
/* Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -26,6 +26,7 @@
|
||||
#include <ctype.h>
|
||||
#include <dirent.h>
|
||||
#include <sys/stat.h> /* umask(), mkdir() */
|
||||
#include <getopt.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
@@ -33,14 +34,23 @@
|
||||
#include "plugin.h"
|
||||
#include "svc.h"
|
||||
#include "sig.h"
|
||||
#include "tty.h"
|
||||
#include "lite.h"
|
||||
#include "inetd.h"
|
||||
|
||||
int debug = 0;
|
||||
int verbose = 1;
|
||||
char *sdown = NULL;
|
||||
char *network = NULL;
|
||||
char *username = NULL;
|
||||
char *hostname = NULL;
|
||||
int debug = 0;
|
||||
int verbose = 1;
|
||||
int runlevel = 0; /* Bootstrap */
|
||||
int cfglevel = RUNLEVEL; /* Fallback if no configured runlevel */
|
||||
int prevlevel = 0; /* HALT */
|
||||
char *sdown = NULL;
|
||||
char *network = NULL;
|
||||
char *username = NULL;
|
||||
char *hostname = NULL;
|
||||
char *rcsd = NULL;
|
||||
char *console = NULL;
|
||||
|
||||
uev_ctx_t *ctx = NULL; /* Main loop context */
|
||||
|
||||
static void parse_kernel_cmdline(void)
|
||||
{
|
||||
@@ -49,6 +59,7 @@ static void parse_kernel_cmdline(void)
|
||||
|
||||
if ((fp = fopen("/proc/cmdline", "r")) != NULL) {
|
||||
fgets(line, sizeof(line), fp);
|
||||
_d("Kernel command line: %s", line);
|
||||
|
||||
if (strstr(line, "finit_debug") || strstr(line, "--debug"))
|
||||
debug = 1;
|
||||
@@ -60,23 +71,98 @@ static void parse_kernel_cmdline(void)
|
||||
}
|
||||
}
|
||||
|
||||
static int run_loop(void)
|
||||
static int usage(int rc)
|
||||
{
|
||||
while (1) {
|
||||
svc_monitor();
|
||||
io_monitor();
|
||||
fprintf(stderr, "Usage: %s [OPTIONS] [RUNLEVEL]\n\n"
|
||||
" -d, --debug Enable/Disable debug\n"
|
||||
" -h, --help This help text\n\n", __progname);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int client(int argc, char *argv[])
|
||||
{
|
||||
int fd;
|
||||
int c;
|
||||
struct option long_options[] = {
|
||||
{"debug", 0, NULL, 'd'},
|
||||
{"help", 0, NULL, 'h'},
|
||||
{NULL, 0, NULL, 0}
|
||||
};
|
||||
struct init_request rq = {
|
||||
.magic = INIT_MAGIC,
|
||||
.cmd = 0
|
||||
};
|
||||
|
||||
while ((c = getopt_long (argc, argv, "h?d", long_options, NULL)) != EOF) {
|
||||
switch(c) {
|
||||
case 'd':
|
||||
rq.cmd = INIT_CMD_DEBUG;
|
||||
break;
|
||||
|
||||
case 'h':
|
||||
case '?':
|
||||
return usage(0);
|
||||
default:
|
||||
return usage(1);
|
||||
}
|
||||
}
|
||||
|
||||
if (!rq.cmd) {
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "Missing runlevel.\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
rq.cmd = INIT_CMD_RUNLVL;
|
||||
rq.runlevel = (int)argv[1][0];
|
||||
}
|
||||
|
||||
if (!fexist(FINIT_FIFO)) {
|
||||
fprintf(stderr, "/sbin/init does not support %s!\n", FINIT_FIFO);
|
||||
return 1;
|
||||
}
|
||||
|
||||
fd = open(FINIT_FIFO, O_WRONLY);
|
||||
if (-1 == fd) {
|
||||
perror("Failed opening " FINIT_FIFO);
|
||||
return 1;
|
||||
}
|
||||
write(fd, &rq, sizeof(rq));
|
||||
close(fd);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int UNUSED(args), char *argv[])
|
||||
static void banner(void)
|
||||
{
|
||||
delline();
|
||||
echo("Finit version " VERSION " (" WHOAMI ") " __DATE__ " " __TIME__);
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
uev_ctx_t loop;
|
||||
|
||||
if (getpid() != 1)
|
||||
return client(argc, argv);
|
||||
|
||||
/*
|
||||
* Hello world.
|
||||
*/
|
||||
banner();
|
||||
|
||||
/*
|
||||
* Initial setup of signals, ignore all until we're up.
|
||||
*/
|
||||
sig_init();
|
||||
|
||||
/*
|
||||
* Initalize event context.
|
||||
*/
|
||||
uev_init(&loop);
|
||||
ctx = &loop;
|
||||
|
||||
/*
|
||||
* Mount base file system, kernel is assumed to run devtmpfs for /dev
|
||||
*/
|
||||
@@ -85,45 +171,49 @@ int main(int UNUSED(args), char *argv[])
|
||||
mount("none", "/proc", "proc", 0, NULL);
|
||||
mount("none", "/proc/bus/usb", "usbfs", 0, NULL);
|
||||
mount("none", "/sys", "sysfs", 0, NULL);
|
||||
mkdir("/dev/pts", 0755);
|
||||
mkdir("/dev/shm", 0755);
|
||||
makedir("/dev/pts", 0755);
|
||||
makedir("/dev/shm", 0755);
|
||||
mount("none", "/dev/pts", "devpts", 0, "gid=5,mode=620");
|
||||
mount("none", "/dev/shm", "tmpfs", 0, NULL);
|
||||
umask(022);
|
||||
|
||||
/*
|
||||
* Populate /dev and prepare for runtime events from kernel.
|
||||
*/
|
||||
#if defined(USE_UDEV)
|
||||
run_interactive("udevd --daemon", "Populating device tree");
|
||||
#elif defined (MDEV)
|
||||
run_interactive(MDEV "-s", "Populating device tree");
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Parse kernel parameters
|
||||
*/
|
||||
parse_kernel_cmdline();
|
||||
|
||||
cls();
|
||||
echo("finit " VERSION " (built " __DATE__ " " __TIME__ " by " WHOAMI ")");
|
||||
/*
|
||||
* Populate /dev and prepare for runtime events from kernel.
|
||||
*/
|
||||
run_interactive(SETUP_DEVFS, "Populating device tree");
|
||||
|
||||
/*
|
||||
* Load plugins first, finit.conf may contain references to
|
||||
* features implemented by plugins.
|
||||
*/
|
||||
print_result(plugin_load_all(&loop, PLUGIN_PATH));
|
||||
|
||||
/*
|
||||
* Parse configuration file
|
||||
*/
|
||||
parse_finit_conf(FINIT_CONF);
|
||||
|
||||
/* Set hostname as soon as possible, for syslog et al. */
|
||||
set_hostname(&hostname);
|
||||
|
||||
/*
|
||||
* Mount filesystems
|
||||
*/
|
||||
_d("Mount filesystems in /etc/fstab ...");
|
||||
|
||||
#ifdef REMOUNT_ROOTFS_RW
|
||||
run("/bin/mount -n -o remount,rw /");
|
||||
#endif
|
||||
#ifdef SYSROOT
|
||||
run(SYSROOT, "/", NULL, MS_MOVE, NULL);
|
||||
#endif
|
||||
|
||||
_d("Root FS up, calling hooks ...");
|
||||
plugin_run_hooks(HOOK_ROOTFS_UP);
|
||||
|
||||
umask(0);
|
||||
run("/bin/mount -na");
|
||||
run("/sbin/swapon -ea");
|
||||
@@ -132,19 +222,16 @@ int main(int UNUSED(args), char *argv[])
|
||||
/* Cleanup stale files, if any still linger on. */
|
||||
run_interactive("rm -rf /tmp/* /var/run/* /var/lock/*", "Cleanup temporary directories");
|
||||
|
||||
/*
|
||||
* Base FS up, enable standard SysV init signals
|
||||
*/
|
||||
sig_setup();
|
||||
/* Base FS up, enable standard SysV init signals */
|
||||
sig_setup(&loop);
|
||||
|
||||
_d("Base FS up, calling hooks ...");
|
||||
plugin_run_hooks(HOOK_BASEFS_UP);
|
||||
|
||||
/*
|
||||
* Load plugins and run first level hooks.
|
||||
* Start all bootstrap tasks, no network available!
|
||||
*/
|
||||
_d("Loading plugins ...");
|
||||
load_plugins(PLUGIN_PATH);
|
||||
|
||||
_d("Running first level hooks ...");
|
||||
run_hooks(HOOK_BASEFS_UP);
|
||||
svc_bootstrap();
|
||||
|
||||
/*
|
||||
* Network stuff
|
||||
@@ -153,45 +240,40 @@ int main(int UNUSED(args), char *argv[])
|
||||
/* Setup kernel specific settings, e.g. allow broadcast ping, etc. */
|
||||
run("/sbin/sysctl -e -p /etc/sysctl.conf >/dev/null");
|
||||
|
||||
/* Set initial hostname. */
|
||||
set_hostname(hostname);
|
||||
|
||||
ifconfig("lo", "127.0.0.1", "255.0.0.0", 1);
|
||||
if (network)
|
||||
run_interactive(network, "Starting networking: %s", network);
|
||||
umask(022);
|
||||
|
||||
/*
|
||||
* Hooks that rely on loopback, or basic networking being up.
|
||||
*/
|
||||
run_hooks(HOOK_NETWORK_UP);
|
||||
/* Hooks that rely on loopback, or basic networking being up. */
|
||||
plugin_run_hooks(HOOK_NETWORK_UP);
|
||||
|
||||
/*
|
||||
* Start service monitor framework
|
||||
* Start all tasks/services in the configured runlevel
|
||||
*/
|
||||
_d("Starting all static services from %s", FINIT_CONF);
|
||||
svc_start_all();
|
||||
svc_runlevel(cfglevel);
|
||||
|
||||
_d("Running svc up hooks ...");
|
||||
plugin_run_hooks(HOOK_SVC_UP);
|
||||
|
||||
/*
|
||||
* Run startup scripts in /etc/finit.d/, if any.
|
||||
*/
|
||||
_d("Running startup scripts in /etc/finit.d/ ...");
|
||||
run_parts(FINIT_RCSD);
|
||||
if (rcsd && fisdir(rcsd)) {
|
||||
_d("Running startup scripts in %s ...", rcsd);
|
||||
run_parts(rcsd, NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* Hooks that should run at the very end
|
||||
*/
|
||||
run_hooks(HOOK_SYSTEM_UP);
|
||||
/* Hooks that should run at the very end */
|
||||
plugin_run_hooks(HOOK_SYSTEM_UP);
|
||||
|
||||
/* Start GETTY on console */
|
||||
_d("Starting getty on console ...");
|
||||
run_getty(GETTY, argv);
|
||||
/* Start TTYs */
|
||||
tty_runlevel(runlevel);
|
||||
|
||||
/*
|
||||
* Enter main loop to monior /dev/initctl and services
|
||||
*/
|
||||
_d("Entering main loop ...");
|
||||
return run_loop();
|
||||
return uev_run(&loop, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
+43
@@ -0,0 +1,43 @@
|
||||
# Sample Debian finit.conf
|
||||
user admin
|
||||
host testbed
|
||||
|
||||
# Devices to fsck at boot
|
||||
check /dev/vda1
|
||||
|
||||
# Linux kernel modules to load
|
||||
module button
|
||||
module evdev
|
||||
module loop
|
||||
module psmouse
|
||||
|
||||
# Runlevel to start after bootstrap, runlevel 'S'
|
||||
runlevel 2
|
||||
|
||||
# Network bringup script
|
||||
network service networking start
|
||||
|
||||
# Virtual consoles to start getty on
|
||||
tty /dev/tty1
|
||||
tty /dev/tty2
|
||||
tty /dev/tty3
|
||||
|
||||
# Alternative method instead of runparts
|
||||
#task [S] /etc/init.d/keyboard-setup start -- Setting up preliminary keymap
|
||||
#task [S] /etc/init.d/acpid start -- Starting ACPI Daemon
|
||||
#task [S] /etc/init.d/kbd start -- Preparing console
|
||||
#run [2] /etc/init.d/networking start -- Start networking
|
||||
|
||||
# Services to be monitored and respawned as needed
|
||||
service [2345] /sbin/klogd -n -- Kernel logging server
|
||||
service [2345] /sbin/syslogd -n -- Syslog server
|
||||
service [3] /usr/sbin/gdm -- GNOME Display Manager
|
||||
|
||||
# By default Finit looks for /etc/finit.d
|
||||
# runparts /etc/finit.d
|
||||
|
||||
# Inetd services
|
||||
inetd time/udp wait [2345] internal -- UNIX rdate service
|
||||
inetd time/tcp nowait [2345] internal -- UNIX rdate service
|
||||
inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i -- SSH service
|
||||
inetd ssh/tcp nowait [2345] /usr/sbin/sshd -i -- SSH service
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Improved fast init
|
||||
/* Finit - Extremely fast /sbin/init replacement w/ I/O, hook & service plugins
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2013 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -27,93 +27,76 @@
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <paths.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <syslog.h>
|
||||
#define DO_LOG(level, fmt, args...) \
|
||||
{ \
|
||||
openlog("finit", LOG_CONS | LOG_PID, LOG_DAEMON); \
|
||||
syslog(LOG_DEBUG, fmt, ##args); \
|
||||
closelog(); \
|
||||
}
|
||||
|
||||
#define DEBUG(fmt, args...) DO_LOG(LOG_DEBUG, fmt, ##args)
|
||||
#define ERROR(fmt, args...) DO_LOG(LOG_CRIT, fmt, ##args)
|
||||
|
||||
#define FINIT_FIFO "/dev/initctl"
|
||||
#define FINIT_CONF "/etc/finit.conf"
|
||||
#define FINIT_RCSD "/etc/finit.d"
|
||||
|
||||
/* Distribution configuration */
|
||||
|
||||
/* Distribution specific configuration */
|
||||
#if defined EMBEDDED_SYSTEM
|
||||
# define CONSOLE "/dev/console"
|
||||
# define MDEV "/sbin/mdev"
|
||||
# define GETTY "/sbin/getty -L 115200 ttyS0 vt100"
|
||||
# define LISTEN_INITCTL
|
||||
# define CONSOLE _PATH_CONSOLE
|
||||
# define SETUP_DEVFS "/sbin/mdev -s"
|
||||
# define GETTY "/sbin/getty -L"
|
||||
# define GETTY_BUSYBOX /* Tell tty.c about the getty argument order */
|
||||
# define BAUDRATE 115200
|
||||
# define RUNLEVEL 2
|
||||
#else /* Debian/Ubuntu based distributions */
|
||||
# define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
# define CONSOLE "/dev/tty1"
|
||||
# define GETTY "/sbin/getty -8 38400 tty1"
|
||||
# define CONSOLE "/dev/tty1"
|
||||
# define SETUP_DEVFS "/sbin/udevd --daemon"
|
||||
# define GETTY "/sbin/getty -8"
|
||||
# define GETTY_AGETTY /* Tell tty.c about the getty argument order */
|
||||
# define BAUDRATE 38400
|
||||
# define RUNLEVEL 2
|
||||
# define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
# define REMOUNT_ROOTFS_RW
|
||||
# define RUNLEVEL 2
|
||||
# define LISTEN_INITCTL
|
||||
# define USE_UDEV
|
||||
# define USE_MESSAGE_BUS
|
||||
# define HAVE_DBUS
|
||||
#endif
|
||||
|
||||
/* If the user configures us to not know about any getty use the system
|
||||
* defined /bin/sh (or similar) as fallback for TTYs. */
|
||||
#ifndef FALLBACK_SHELL
|
||||
# define FALLBACK_SHELL _PATH_BSHELL
|
||||
#endif
|
||||
|
||||
#ifndef DEFUSER
|
||||
# define DEFUSER "root"
|
||||
# define DEFUSER "root"
|
||||
#endif
|
||||
#ifndef DEFHOST
|
||||
# define DEFHOST "noname"
|
||||
# define DEFHOST "noname"
|
||||
#endif
|
||||
|
||||
#define CMD_SIZE 256
|
||||
#define LINE_SIZE 1024
|
||||
#define BUF_SIZE 4096
|
||||
#define USERNAME_SIZE 16
|
||||
#define HOSTNAME_SIZE 32
|
||||
#define CMD_SIZE 256
|
||||
#define LINE_SIZE 1024
|
||||
#define BUF_SIZE 4096
|
||||
|
||||
#ifndef touch
|
||||
# define touch(x) mknod((x), S_IFREG|0644, 0)
|
||||
#endif
|
||||
#ifndef chardev
|
||||
# define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
|
||||
#endif
|
||||
#ifndef blkdev
|
||||
# define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
|
||||
#endif
|
||||
#ifndef fexist
|
||||
# define fexist(x) (access(x, F_OK) != -1)
|
||||
#endif
|
||||
#define INIT_MAGIC 0x03091969
|
||||
#define INIT_CMD_RUNLVL 1
|
||||
#define INIT_CMD_DEBUG 2
|
||||
|
||||
#ifndef UNUSED
|
||||
#define UNUSED(x) UNUSED_ ## x __attribute__ ((unused))
|
||||
#endif
|
||||
struct init_request {
|
||||
int magic; /* Magic number */
|
||||
int cmd; /* What kind of request */
|
||||
int runlevel; /* Runlevel to change to */
|
||||
int sleeptime; /* Time between TERM and KILL */
|
||||
char data[368];
|
||||
};
|
||||
|
||||
#define echo(fmt, args...) do { if (1) { fprintf(stderr, fmt "\n", ##args); } } while (0)
|
||||
#define _d(fmt, args...) do { if (debug) { fprintf(stderr, "finit:%s() - " fmt "\n", __func__, ##args); } } while (0)
|
||||
#define _e(fmt, args...) do { fprintf(stderr, "finit:%s() - " fmt "\n", __func__, ##args); } while (0)
|
||||
#define _pe(fmt, args...) do { fprintf(stderr, "finit:%s() - " fmt ". Error %d: %s\n", __func__, ##args, errno, strerror(errno)); } while (0)
|
||||
|
||||
extern int debug;
|
||||
extern int verbose;
|
||||
extern char *sdown;
|
||||
extern char *network;
|
||||
extern char *hostname;
|
||||
extern char *username;
|
||||
|
||||
/* strlcpy.c */
|
||||
size_t strlcpy(char *dst, const char *src, size_t siz);
|
||||
extern int runlevel;
|
||||
extern int cfglevel;
|
||||
extern int prevlevel;
|
||||
extern char *sdown;
|
||||
extern char *network;
|
||||
extern char *hostname;
|
||||
extern char *username;
|
||||
extern char *rcsd;
|
||||
extern char *console;
|
||||
extern char *__progname;
|
||||
|
||||
/* conf.c */
|
||||
void parse_finit_conf(char *file);
|
||||
|
||||
int parse_runlevels (char *runlevels);
|
||||
int parse_finit_conf (char *file);
|
||||
|
||||
#endif /* FINIT_H_ */
|
||||
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Misc. utility functions and C-library extensions to simplify finit system setup.
|
||||
/* Misc. utility functions and C-library extensions for finit and its plugins
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -25,25 +25,101 @@
|
||||
#ifndef FINIT_HELPERS_H_
|
||||
#define FINIT_HELPERS_H_
|
||||
|
||||
int makepath (char *);
|
||||
void ifconfig (char *, char *, char *, int);
|
||||
void copyfile (char *, char *, int);
|
||||
void print_descr (char *action, char *descr);
|
||||
#include <stdio.h>
|
||||
#include <syslog.h>
|
||||
|
||||
#define DO_LOG(level, fmt, args...) \
|
||||
do { \
|
||||
openlog("finit", LOG_CONS | LOG_PID, LOG_DAEMON); \
|
||||
syslog(level, fmt, ##args); \
|
||||
closelog(); \
|
||||
} while (0)
|
||||
|
||||
#define FLOG_DEBUG(fmt, args...) DO_LOG(LOG_DEBUG, fmt, ##args)
|
||||
#define FLOG_INFO(fmt, args...) DO_LOG(LOG_INFO, fmt, ##args)
|
||||
#define FLOG_WARN(fmt, args...) DO_LOG(LOG_WARNING, fmt, ##args)
|
||||
#define FLOG_ERROR(fmt, args...) DO_LOG(LOG_CRIT, fmt, ##args)
|
||||
#define FLOG_PERROR(fmt, args...) DO_LOG(LOG_CRIT, fmt ". Error %d: %s", ##args, errno, strerror(errno))
|
||||
|
||||
|
||||
#ifndef touch
|
||||
# define touch(x) do { if (mknod((x), S_IFREG|0644, 0) && errno != EEXIST) _pe("Failed creating %s", x); } while (0)
|
||||
#endif
|
||||
#ifndef makedir
|
||||
# define makedir(x, p) do { if (mkdir(x, p) && errno != EEXIST) _pe("Failed creating directory %s", x); } while (0)
|
||||
#endif
|
||||
#ifndef makefifo
|
||||
# define makefifo(x, p) do { if (mkfifo(x, p) && errno != EEXIST) _pe("Failed creating FIFO %s", x); } while (0)
|
||||
#endif
|
||||
#ifndef erase
|
||||
# define erase(x) do { if (remove(x) && errno != ENOENT) _pe("Failed removing %s", x); } while (0)
|
||||
#endif
|
||||
#ifndef chardev
|
||||
# define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
|
||||
#endif
|
||||
#ifndef blkdev
|
||||
# define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
|
||||
#endif
|
||||
#ifndef S_ISEXEC
|
||||
# define S_ISEXEC(m) (((m) & S_IXUSR) == S_IXUSR)
|
||||
#endif
|
||||
#ifndef UNUSED
|
||||
#define UNUSED(x) UNUSED_ ## x __attribute__ ((unused))
|
||||
#endif
|
||||
/* Esc[2JEsc[1;1H Clear screen and move cursor to 1,1 (upper left) pos. */
|
||||
#define clrscr() fputs("\e[2J\e[1;1H", stderr)
|
||||
/* Esc[K Erases from the current cursor position to the end of the current line. */
|
||||
#define clreol() fputs("\e[K", stderr)
|
||||
/* Esc[2K Erases the entire current line. */
|
||||
#define delline() fputs("\e[2K", stderr)
|
||||
/* Esc[Line;ColumnH Moves the cursor to the specified position (coordinates) */
|
||||
#define gotoxy(x,y) fprintf(stderr, "\e[%d;%dH", y, x)
|
||||
/* Esc[?25l (lower case L) Hide Cursor */
|
||||
#define hidecursor() fputs("\e[?25l", stderr)
|
||||
/* Esc[?25h (lower case H) Show Cursor */
|
||||
#define showcursor() fputs("\e[?25h", stderr)
|
||||
|
||||
#define echo(fmt, args...) do { fprintf(stderr, fmt "\n", ##args); } while (0)
|
||||
#define _d(fmt, args...) do { if (debug) { fprintf(stderr, "finit:%s:%s() - " fmt "\n", __FILE__, __func__, ##args); } } while (0)
|
||||
#define _e(fmt, args...) do { fprintf(stderr, "finit:%s:%s() - " fmt "\n", __FILE__, __func__, ##args); } while (0)
|
||||
#define _pe(fmt, args...) do { fprintf(stderr, "finit:%s:%s() - " fmt ". Error %d: %s\n", __FILE__, __func__, ##args, errno, strerror(errno)); } while (0)
|
||||
|
||||
#define ISSET(a,i) ((a & (1 << (i)) ? 1 : 0))
|
||||
#define SETBIT(a,i) (a |= (1 << (i)))
|
||||
#define CLRBIT(a,i) (a &= ~(1 << (i)))
|
||||
|
||||
extern int debug;
|
||||
extern int verbose;
|
||||
|
||||
int makepath (char *path);
|
||||
void ifconfig (char *ifname, char *addr, char *mask, int up);
|
||||
|
||||
int atonum (char *str);
|
||||
|
||||
pid_t pidfile_read (char *pidfile);
|
||||
pid_t pidfile_poll (char *cmd, char *path);
|
||||
|
||||
int pid_alive (pid_t pid);
|
||||
char *pid_get_name (pid_t pid, char *name, size_t len);
|
||||
|
||||
void procname_set (char *name, char *args[]);
|
||||
int procname_kill (char *name, int signo);
|
||||
|
||||
void print (int action, const char *fmt, ...);
|
||||
void print_desc (char *action, char *desc);
|
||||
int print_result (int fail);
|
||||
int start_process (char *cmd, char *args[], int console);
|
||||
void cls (void);
|
||||
void chomp (char *);
|
||||
int getuser (char *);
|
||||
int getgroup (char *);
|
||||
void set_procname (char *args[], char *name);
|
||||
char *get_pidname (pid_t pid, char *name, size_t len);
|
||||
int kill_procname (const char *name, int signo);
|
||||
void set_hostname (char *hostname);
|
||||
void chomp (char *str);
|
||||
void do_sleep (unsigned int sec);
|
||||
int getuser (char *username);
|
||||
int getgroup (char *group);
|
||||
void set_hostname (char **hostname);
|
||||
|
||||
int complete (char *cmd, int pid);
|
||||
int run (char *cmd);
|
||||
int run_interactive (char *cmd, char *fmt, ...);
|
||||
pid_t run_getty (char *cmd, char *argv[]);
|
||||
int run_parts (char *dir, ...);
|
||||
pid_t run_getty (char *cmd, char *args[], int console);
|
||||
int run_parts (char *dir, char *cmd);
|
||||
|
||||
#endif /* FINIT_HELPERS_H_ */
|
||||
|
||||
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 69 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 35 KiB |
@@ -0,0 +1,521 @@
|
||||
/* Classic inetd services launcher for Finit
|
||||
*
|
||||
* Copyright (c) 2015 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "inetd.h" /* XXX: Move back down after upgrading to libuEv >1.0.4 */
|
||||
|
||||
#include <ifaddrs.h>
|
||||
#include <net/if.h>
|
||||
#include <netinet/in.h>
|
||||
#include <sys/socket.h>
|
||||
|
||||
#include "libuev/uev.h"
|
||||
#include "libite/lite.h"
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
#include "private.h"
|
||||
#include "svc.h"
|
||||
|
||||
#define ENABLE_SOCKOPT(sd, level, opt) \
|
||||
do { \
|
||||
int val = 1; \
|
||||
if (setsockopt(sd, level, opt, &val, sizeof(val)) < 0) \
|
||||
FLOG_PERROR("Failed setting %s on %s service.", \
|
||||
#opt, inetd->name); \
|
||||
} while (0);
|
||||
|
||||
/* Socket callback, looks up correct svc and starts it as an inetd service */
|
||||
static void socket_cb(uev_ctx_t *UNUSED(ctx), uev_t *w, void *arg, int UNUSED(events))
|
||||
{
|
||||
svc_t *svc = (svc_t *)arg;
|
||||
|
||||
if (SVC_START != svc_enabled(svc, -1, NULL))
|
||||
return;
|
||||
|
||||
if (!svc->inetd.forking)
|
||||
uev_io_stop(w);
|
||||
|
||||
svc_start(svc);
|
||||
}
|
||||
|
||||
/* Launch Inet socket for service.
|
||||
* TODO: Add filtering ALLOW/DENY per interface.
|
||||
*/
|
||||
static void spawn_socket(inetd_t *inetd)
|
||||
{
|
||||
int sd;
|
||||
socklen_t len = sizeof(struct sockaddr);
|
||||
struct sockaddr_in s;
|
||||
|
||||
if (!inetd->type) {
|
||||
FLOG_ERROR("Skipping invalid inetd service %s", inetd->name);
|
||||
return;
|
||||
}
|
||||
|
||||
_d("Spawning server socket for inetd %s ...", inetd->name);
|
||||
sd = socket(AF_INET, inetd->type | SOCK_NONBLOCK | SOCK_CLOEXEC, inetd->proto);
|
||||
if (-1 == sd) {
|
||||
FLOG_PERROR("Failed opening inetd socket type %d proto %d", inetd->type, inetd->proto);
|
||||
return;
|
||||
}
|
||||
|
||||
ENABLE_SOCKOPT(sd, SOL_SOCKET, SO_REUSEADDR);
|
||||
#ifdef SO_REUSEPORT
|
||||
ENABLE_SOCKOPT(sd, SOL_SOCKET, SO_REUSEPORT);
|
||||
#endif
|
||||
|
||||
memset(&s, 0, sizeof(s));
|
||||
s.sin_family = AF_INET;
|
||||
s.sin_addr.s_addr = INADDR_ANY;
|
||||
s.sin_port = htons(inetd->port);
|
||||
if (bind(sd, (struct sockaddr *)&s, len) < 0) {
|
||||
FLOG_PERROR("Failed binding to port %d, maybe another %s server is already running",
|
||||
inetd->port, inetd->name);
|
||||
close(sd);
|
||||
return;
|
||||
}
|
||||
|
||||
if (inetd->port) {
|
||||
if (inetd->type == SOCK_STREAM) {
|
||||
if (-1 == listen(sd, 20)) {
|
||||
FLOG_PERROR("Failed listening to inetd service %s", inetd->name);
|
||||
close(sd);
|
||||
return;
|
||||
}
|
||||
} else { /* SOCK_DGRAM */
|
||||
/* Set extra sockopt to get ifindex from inbound packets */
|
||||
ENABLE_SOCKOPT(sd, SOL_IP, IP_PKTINFO);
|
||||
}
|
||||
}
|
||||
|
||||
uev_io_init(ctx, &inetd->watcher, socket_cb, inetd->arg, sd, UEV_READ);
|
||||
}
|
||||
|
||||
/* Peek into SOCK_DGRAM socket to figure out where an inbound packet comes from. */
|
||||
int inetd_dgram_peek(int sd, char *ifname)
|
||||
{
|
||||
char cmbuf[0x100];
|
||||
struct msghdr msgh;
|
||||
struct cmsghdr *cmsg;
|
||||
|
||||
memset(&msgh, 0, sizeof(msgh));
|
||||
msgh.msg_control = cmbuf;
|
||||
msgh.msg_controllen = sizeof(cmbuf);
|
||||
|
||||
if (recvmsg(sd, &msgh, MSG_PEEK) < 0)
|
||||
return -1;
|
||||
|
||||
for (cmsg = CMSG_FIRSTHDR(&msgh); cmsg; cmsg = CMSG_NXTHDR(&msgh,cmsg)) {
|
||||
struct in_pktinfo *ipi = (struct in_pktinfo *)CMSG_DATA(cmsg);
|
||||
|
||||
if (cmsg->cmsg_level != SOL_IP || cmsg->cmsg_type != IP_PKTINFO)
|
||||
continue;
|
||||
|
||||
if_indextoname(ipi->ipi_ifindex, ifname);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Peek into SOCK_STREAM on accepted client socket to figure out inbound interface */
|
||||
int inetd_stream_peek(int sd, char *ifname)
|
||||
{
|
||||
struct ifaddrs *ifaddr, *ifa;
|
||||
struct sockaddr_in sin;
|
||||
socklen_t len = sizeof(sin);
|
||||
|
||||
if (-1 == getsockname(sd, (struct sockaddr *)&sin, &len))
|
||||
return -1;
|
||||
|
||||
if (-1 == getifaddrs(&ifaddr))
|
||||
return -1;
|
||||
|
||||
for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
|
||||
size_t len = sizeof(struct in_addr);
|
||||
struct sockaddr_in *iin;
|
||||
|
||||
if (!ifa->ifa_addr)
|
||||
continue;
|
||||
|
||||
if (ifa->ifa_addr->sa_family != AF_INET)
|
||||
continue;
|
||||
|
||||
iin = (struct sockaddr_in *)ifa->ifa_addr;
|
||||
if (!memcmp(&sin.sin_addr, &iin->sin_addr, len)) {
|
||||
strncpy(ifname, ifa->ifa_name, IF_NAMESIZE);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
freeifaddrs(ifaddr);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Inetd monitor, called by svc_monitor() */
|
||||
int inetd_respawn(pid_t pid)
|
||||
{
|
||||
svc_t *svc = svc_find_by_pid(pid);
|
||||
|
||||
if (svc && SVC_CMD_INETD == svc->type) {
|
||||
inetd_t *inetd = &svc->inetd;
|
||||
|
||||
svc->pid = 0;
|
||||
|
||||
if (ISSET(svc->runlevels, runlevel) && !inetd->forking)
|
||||
uev_io_set(&inetd->watcher, inetd->watcher.fd, UEV_READ);
|
||||
|
||||
return 1; /* It was us! */
|
||||
}
|
||||
|
||||
return 0; /* Not an inetd service */
|
||||
}
|
||||
|
||||
|
||||
void inetd_start(inetd_t *inetd)
|
||||
{
|
||||
if (inetd->watcher.fd == -1)
|
||||
spawn_socket(inetd);
|
||||
}
|
||||
|
||||
void inetd_stop(inetd_t *inetd)
|
||||
{
|
||||
svc_t *svc = (svc_t *)inetd->arg;
|
||||
|
||||
if (inetd->watcher.fd != -1) {
|
||||
uev_io_stop(&inetd->watcher);
|
||||
shutdown(inetd->watcher.fd, SHUT_RDWR);
|
||||
close(inetd->watcher.fd);
|
||||
inetd->watcher.fd = -1;
|
||||
}
|
||||
|
||||
/* Stop any running service, not allowed anymore. */
|
||||
if (svc->pid)
|
||||
svc_stop(svc);
|
||||
}
|
||||
|
||||
static int getent(char *service, char *proto, struct servent **sv, struct protoent **pv)
|
||||
{
|
||||
*sv = getservbyname(service, proto);
|
||||
if (!*sv) {
|
||||
_pe("Invalid inetd %s/%s (service/proto), skipping", service, proto);
|
||||
return errno = EINVAL;
|
||||
}
|
||||
|
||||
if (pv) {
|
||||
*pv = getprotobyname((*sv)->s_proto);
|
||||
if (!*pv) {
|
||||
_pe("Cannot find proto %s, skipping.", (*sv)->s_proto);
|
||||
return errno = EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Find exact match.
|
||||
*/
|
||||
static inetd_filter_t *find_filter(inetd_t *inetd, char *ifname)
|
||||
{
|
||||
inetd_filter_t *filter;
|
||||
|
||||
if (!ifname)
|
||||
ifname = "";
|
||||
|
||||
LIST_FOREACH(filter, &inetd->filters, link) {
|
||||
_d("Checking filters for %s: '%s' vs '%s' (exact match) ...",
|
||||
inetd->name, filter->ifname, ifname);
|
||||
|
||||
if (!strcmp(filter->ifname, ifname))
|
||||
return filter;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* First try exact match, then fall back to any match.
|
||||
*/
|
||||
inetd_filter_t *inetd_filter_match(inetd_t *inetd, char *ifname)
|
||||
{
|
||||
inetd_filter_t *filter = find_filter(inetd, ifname);
|
||||
|
||||
if (filter)
|
||||
return filter;
|
||||
|
||||
if (!ifname)
|
||||
ifname = "";
|
||||
|
||||
LIST_FOREACH(filter, &inetd->filters, link) {
|
||||
_d("Checking filters for %s: '%s' vs '%s' (any match) ...",
|
||||
inetd->name, filter->ifname, ifname);
|
||||
|
||||
if (!strlen(filter->ifname))
|
||||
return filter;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
int inetd_allow(inetd_t *inetd, char *ifname)
|
||||
{
|
||||
inetd_filter_t *filter;
|
||||
|
||||
if (!inetd)
|
||||
return errno = EINVAL;
|
||||
|
||||
filter = inetd_filter_match(inetd, ifname);
|
||||
if (filter) {
|
||||
_d("Filter %s for inetd %s already exists, skipping.", ifname ?: "*", inetd->name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
_d("Allow iface %s for service %s (port %d)", ifname ?: "*", inetd->name, inetd->port);
|
||||
filter = calloc(1, sizeof(*filter));
|
||||
if (!filter) {
|
||||
_e("Out of memory, cannot add filter to service %s", inetd->name);
|
||||
return errno = ENOMEM;
|
||||
}
|
||||
|
||||
if (!ifname)
|
||||
ifname = "";
|
||||
filter->deny = 0;
|
||||
strlcpy(filter->ifname, ifname, sizeof(filter->ifname));
|
||||
LIST_INSERT_HEAD(&inetd->filters, filter, link);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int inetd_deny(inetd_t *inetd, char *ifname)
|
||||
{
|
||||
inetd_filter_t *filter;
|
||||
|
||||
if (!inetd)
|
||||
return errno = EINVAL;
|
||||
|
||||
/* Reset to NULL for debug output below */
|
||||
if (!ifname[0])
|
||||
ifname = NULL;
|
||||
|
||||
filter = find_filter(inetd, ifname);
|
||||
if (filter) {
|
||||
_d("%s filter %s for inetd %s already exists, cannot set deny filter for same, skipping.",
|
||||
filter->deny ? "Deny" : "Allow", ifname ?: "*", inetd->name);
|
||||
return 1;
|
||||
}
|
||||
|
||||
_d("Deny iface %s for service %s (port %d)", ifname ?: "*", inetd->name, inetd->port);
|
||||
filter = calloc(1, sizeof(*filter));
|
||||
if (!filter) {
|
||||
_e("Out of memory, cannot add filter to service %s", inetd->name);
|
||||
return errno = ENOMEM;
|
||||
}
|
||||
|
||||
if (!ifname)
|
||||
ifname = "";
|
||||
filter->deny = 1;
|
||||
strlcpy(filter->ifname, ifname, sizeof(filter->ifname));
|
||||
LIST_INSERT_HEAD(&inetd->filters, filter, link);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int inetd_is_allowed(inetd_t *inetd, char *ifname)
|
||||
{
|
||||
inetd_filter_t *filter;
|
||||
|
||||
if (!inetd) {
|
||||
errno = EINVAL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
filter = inetd_filter_match(inetd, ifname);
|
||||
if (filter) {
|
||||
_d("Found matching filter for %s, deny: %d ... ", inetd->name, filter->deny);
|
||||
return !filter->deny;
|
||||
}
|
||||
|
||||
_d("No matching filter for %s ... ", inetd->name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int inetd_match(inetd_t *inetd, char *service, char *proto, char *port)
|
||||
{
|
||||
int cport = port ? atonum(port) : -1;
|
||||
|
||||
if (!inetd || !service || !proto)
|
||||
return errno = EINVAL;
|
||||
|
||||
if (strncmp(inetd->name, service, sizeof(inetd->name)))
|
||||
return 0;
|
||||
|
||||
if (cport != -1) {
|
||||
if (inetd->port == cport)
|
||||
return 1;
|
||||
} else {
|
||||
struct servent *sv = NULL;
|
||||
|
||||
if (getent(service, proto, &sv, NULL))
|
||||
return 0;
|
||||
|
||||
if (inetd->port == ntohs(sv->s_port))
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* This function is called to add a new, unique, inetd service. When an
|
||||
* ifname is given as argument this means *only* run service on this
|
||||
* interface. If a similar service runs on another port, this function
|
||||
* must add this ifname as "deny" to that other service.
|
||||
*
|
||||
* Example:
|
||||
* inetd ssh@eth0:222/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
* inetd ssh/tcp nowait [2345] /usr/sbin/sshd -i
|
||||
*
|
||||
* In this example eth0:222 is very specific, so when ssh/tcp (default)
|
||||
* is added we must find the previous 'ssh' service and add its eth0 as
|
||||
* deny, so we don't accept port 22 session on eth0.
|
||||
*
|
||||
* In the reverse case, where the default (ssh/tcp) entry is listed
|
||||
* before the specific (eth0:222), the new inetd service must find the
|
||||
* (any!) previous rule and add its ifname to their deny list.
|
||||
*
|
||||
* If equivalent service exists already svc_register() will instead call
|
||||
* inetd_allow().
|
||||
*/
|
||||
int inetd_new(inetd_t *inetd, char *service, char *proto, int forking)
|
||||
{
|
||||
int result;
|
||||
struct servent *sv = NULL;
|
||||
struct protoent *pv = NULL;
|
||||
|
||||
if (!inetd || !service || !proto)
|
||||
return errno = EINVAL;
|
||||
|
||||
result = getent(service, proto, &sv, &pv);
|
||||
if (result)
|
||||
return result;
|
||||
|
||||
/* Setup defaults */
|
||||
inetd->std = 1;
|
||||
inetd->port = ntohs(sv->s_port);
|
||||
inetd->proto = pv->p_proto;
|
||||
inetd->forking = !!forking;
|
||||
strlcpy(inetd->name, service, sizeof(inetd->name));
|
||||
|
||||
/* Naïve mapping tcp->stream, udp->dgram, other->dgram */
|
||||
if (!strcasecmp(sv->s_proto, "tcp"))
|
||||
inetd->type = SOCK_STREAM;
|
||||
else
|
||||
inetd->type = SOCK_DGRAM;
|
||||
|
||||
/* Reset descriptor, used internally */
|
||||
inetd->watcher.fd = -1;
|
||||
|
||||
_d("New service %s (default port %d proto %s:%d)", service, inetd->port, sv->s_proto, pv->p_proto);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int inetd_del(inetd_t *inetd)
|
||||
{
|
||||
inetd_filter_t *filter, *tmp;
|
||||
|
||||
LIST_FOREACH_SAFE(filter, &inetd->filters, link, tmp)
|
||||
free(filter);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int inetd_init(inetd_t *inetd, void *arg, char *ifname, char *port)
|
||||
{
|
||||
int result, cport = -1;
|
||||
svc_t *svc;
|
||||
|
||||
if (!inetd || !arg)
|
||||
return errno = EINVAL;
|
||||
|
||||
if (port)
|
||||
cport = atonum(port);
|
||||
|
||||
if (cport != -1 && cport != inetd->port) {
|
||||
inetd->std = 0;
|
||||
inetd->port = cport;
|
||||
}
|
||||
|
||||
/* Setup socket callback argument */
|
||||
inetd->arg = arg;
|
||||
|
||||
/* Poor man's tcpwrappers filtering */
|
||||
result = inetd_allow(inetd, ifname);
|
||||
|
||||
/* For each similar service, on other port, add their ifnames as deny to ours. */
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
inetd_filter_t *filter;
|
||||
|
||||
/* Skip non-inetd services */
|
||||
if (svc->type != SVC_CMD_INETD)
|
||||
continue;
|
||||
|
||||
/* Skip ourselves */
|
||||
if (&svc->inetd == inetd)
|
||||
continue;
|
||||
|
||||
/* Skip different service types (telnet != ssh) */
|
||||
if (strcmp(svc->inetd.name, inetd->name))
|
||||
continue;
|
||||
|
||||
/* Deny all their interfaces from using my service */
|
||||
LIST_FOREACH(filter, &svc->inetd.filters, link) {
|
||||
if (filter->deny)
|
||||
continue;
|
||||
|
||||
inetd_deny(inetd, filter->ifname);
|
||||
}
|
||||
|
||||
/* Deny my interfaces from using their service ... */
|
||||
LIST_FOREACH(filter, &inetd->filters, link) {
|
||||
if (filter->deny)
|
||||
continue;
|
||||
|
||||
inetd_deny(&svc->inetd, filter->ifname);
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,81 @@
|
||||
/* Classic inetd services launcher for Finit
|
||||
*
|
||||
* Copyright (c) 2015 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef FINIT_INETD_H_
|
||||
#define FINIT_INETD_H_
|
||||
|
||||
#include <netdb.h>
|
||||
#include <net/if.h>
|
||||
|
||||
#include "queue.h"
|
||||
#include "libuev/uev.h"
|
||||
|
||||
|
||||
typedef struct inetd_filter {
|
||||
LIST_ENTRY(inetd_filter) link;
|
||||
int deny; /* 0:allow, 1:deny */
|
||||
char ifname[IFNAMSIZ]; /* E.g., eth0 */
|
||||
} inetd_filter_t;
|
||||
|
||||
typedef struct {
|
||||
uev_t watcher;
|
||||
void *arg; /* svc_t pointer for the socket callback */
|
||||
|
||||
int type; /* Socket type: SOCK_STREAM/SOCK_DGRAM */
|
||||
int std; /* Standard proto/port from /etc/services */
|
||||
int proto;
|
||||
int port;
|
||||
int forking;
|
||||
char name[10];
|
||||
int (*cmd)(int type); /* internal inetd service, like 'time' */
|
||||
|
||||
LIST_HEAD(, inetd_filter) filters;
|
||||
} inetd_t;
|
||||
|
||||
int inetd_dgram_peek (int sd, char *ifname);
|
||||
int inetd_stream_peek (int sd, char *ifname);
|
||||
|
||||
void inetd_start (inetd_t *inetd);
|
||||
void inetd_stop (inetd_t *inetd);
|
||||
|
||||
int inetd_respawn (pid_t pid);
|
||||
|
||||
int inetd_new (inetd_t *inetd, char *service, char *proto, int forking);
|
||||
int inetd_del (inetd_t *inetd);
|
||||
|
||||
int inetd_init (inetd_t *inetd, void *arg, char *ifname, char *port);
|
||||
int inetd_match (inetd_t *inetd, char *service, char *proto, char *port);
|
||||
|
||||
int inetd_allow (inetd_t *inetd, char *ifname);
|
||||
int inetd_deny (inetd_t *inetd, char *ifname);
|
||||
int inetd_is_allowed (inetd_t *inetd, char *ifname);
|
||||
|
||||
#endif /* FINIT_INETD_H_ */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,80 @@
|
||||
# Finit libite -- Light-weight utility functions and C-library extensions
|
||||
#
|
||||
# Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documentation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furnished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
|
||||
.EXPORT_ALL_VARIABLES:
|
||||
.PHONY: all install clean
|
||||
|
||||
include ../common.mk
|
||||
|
||||
CFLAGS += -fPIC
|
||||
HEADERS = lite.h
|
||||
OBJS := copyfile.o dir.o fexist.o fisdir.o fmode.o rsync.o
|
||||
OBJS += strlcpy.o strlcat.o strtonum.o
|
||||
DEPS := $(addprefix ., $(OBJS:.o=.d))
|
||||
|
||||
VER = 0
|
||||
LIBNAME = libite
|
||||
TARGET = $(LIBNAME).so
|
||||
VERLIB = $(TARGET).$(VER)
|
||||
STATICLIB = $(LIBNAME).a
|
||||
|
||||
CHECK_FLAGS = $(CFLAGS) $(CPPFLAGS)
|
||||
|
||||
all: $(TARGET)
|
||||
|
||||
$(OBJS): Makefile
|
||||
|
||||
$(TARGET): $(OBJS)
|
||||
@printf " LINK %s\n" $@
|
||||
# @$(AR) $(ARFLAGS) $(STATICLIB) $(OBJS)
|
||||
@$(CC) $(LDFLAGS) -shared $(OBJS) -lrt -lcrypt -Wl,-soname,$@ -o $@
|
||||
@ln -sf $@ $(VERLIB)
|
||||
|
||||
install-exec: all
|
||||
@install -d $(DESTDIR)$(libdir)
|
||||
@echo " INSTALL $(DESTDIR)$(libdir)/$(TARGET)"
|
||||
@$(STRIPINST) $(TARGET) $(DESTDIR)$(libdir)/$(TARGET)
|
||||
@ln -sf $(TARGET) $(DESTDIR)$(libdir)/$(VERLIB)
|
||||
|
||||
install-dev:
|
||||
@for file in $(HEADERS); do \
|
||||
printf " INSTALL $(DESTDIR)$(incdir)/$$file\n"; \
|
||||
$(INSTALL) -m 0644 $$file $(DESTDIR)$(incdir)/$$file; \
|
||||
done
|
||||
|
||||
install: install-dev install-exec
|
||||
|
||||
uninstall:
|
||||
-@$(RM) $(DESTDIR)$(libdir)/$(VERLIB)
|
||||
-@$(RM) $(DESTDIR)$(libdir)/$(TARGET)
|
||||
|
||||
clean: uninstall
|
||||
-@$(RM) $(OBJS) $(DEPS) $(TARGET) $(VERLIB) $(STATICLIB)
|
||||
|
||||
distclean: clean
|
||||
-@$(RM) $(JUNK) unittest *.o .*.d *.unittest
|
||||
|
||||
ifneq ($(MAKECMDGOALS),clean)
|
||||
ifneq ($(MAKECMDGOALS),distclean)
|
||||
-include $(DEPS)
|
||||
endif
|
||||
endif
|
||||
@@ -0,0 +1,377 @@
|
||||
/* Fastinit (finit) copyfile() implementation.
|
||||
*
|
||||
* Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <limits.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "lite.h"
|
||||
|
||||
static int adjust_target(char *src, char **dst);
|
||||
|
||||
/**
|
||||
* copyfile - Copy a file to another.
|
||||
* @src: Source file.
|
||||
* @dst: Target file.
|
||||
* @len: Number of bytes to copy, zero (0) for entire file.
|
||||
* @sym: Should symlinks be recreated (1) or followed (0)
|
||||
*
|
||||
* This is a C implementation of the command line cp(1) utility. It is one
|
||||
* of the classic missing links in the UNIX C library. This version is from
|
||||
* the finit project, http://helllabs.org/finit/, which is a reimplementation
|
||||
* of fastinit for the Asus EeePC.
|
||||
*
|
||||
* Only some small changes to save stack space have been introduced.
|
||||
*
|
||||
* Returns:
|
||||
* The number of bytes copied, zero may be error (check errno!), but it
|
||||
* may also indicate that @src was empty. If @src is a directory errno
|
||||
* will be set to %EISDIR since copyfile() is not recursive.
|
||||
*/
|
||||
ssize_t copyfile(char *src, char *dst, int len, int sym)
|
||||
{
|
||||
char *buffer;
|
||||
int in, out, isdir = 0, saved_errno = 0;
|
||||
ssize_t num, size = 0;
|
||||
|
||||
errno = 0;
|
||||
|
||||
buffer = malloc(BUFSIZ);
|
||||
if (!buffer)
|
||||
return 0;
|
||||
|
||||
if (fisdir(src)) {
|
||||
saved_errno = EISDIR; /* Error: source is a directory */
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Check if target is a directory, then append src filename. */
|
||||
isdir = adjust_target(src, &dst);
|
||||
|
||||
if (sym) {
|
||||
size = readlink(src, buffer, BUFSIZ);
|
||||
if (size > 0) {
|
||||
if (size >= (ssize_t) BUFSIZ) {
|
||||
saved_errno = ENOBUFS;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
buffer[size] = 0;
|
||||
size = !symlink(buffer, dst);
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
|
||||
/* 0: copy entire file */
|
||||
if (len == 0)
|
||||
len = INT_MAX; /* XXX: 2047 MiB should sufficient ... */
|
||||
|
||||
in = open(src, O_RDONLY);
|
||||
if (in < 0) {
|
||||
saved_errno = errno;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
out = open(dst, O_WRONLY | O_CREAT | O_TRUNC, fmode(src));
|
||||
if (out < 0) {
|
||||
close(in);
|
||||
saved_errno = errno;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
do {
|
||||
int clen = len > BUFSIZ ? BUFSIZ : len;
|
||||
|
||||
num = read(in, buffer, clen);
|
||||
if (num > 0)
|
||||
size += write(out, buffer, num);
|
||||
len -= clen;
|
||||
} while (len > 0 && num == BUFSIZ);
|
||||
|
||||
close(out);
|
||||
close(in);
|
||||
|
||||
exit:
|
||||
free(buffer);
|
||||
if (isdir)
|
||||
free(dst);
|
||||
errno = saved_errno;
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* movefile - Move a file to another location
|
||||
* @src: Source file.
|
||||
* @dst: Target file, or location.
|
||||
*
|
||||
* This is a C implementation of the command line mv(1) utility.
|
||||
* Usually the rename() API is sufficient, but not when moving across
|
||||
* file system boundaries.
|
||||
*
|
||||
* The @src argument must include the full path to the source file,
|
||||
* whereas the @dst argument may only be a directory, in which case the
|
||||
* same file name from @src is used.
|
||||
*
|
||||
* Returns:
|
||||
* POSIX OK(0), or non-zero with errno set.
|
||||
*/
|
||||
int movefile(char *src, char *dst)
|
||||
{
|
||||
int isdir, result = 0;
|
||||
|
||||
/* Check if target is a directory, then append the src base filename. */
|
||||
isdir = adjust_target(src, &dst);
|
||||
|
||||
if (rename(src, dst)) {
|
||||
if (errno == EXDEV) {
|
||||
errno = 0;
|
||||
copyfile(src, dst, 0, 0);
|
||||
if (errno)
|
||||
result = 1;
|
||||
else
|
||||
result = remove(src);
|
||||
} else {
|
||||
result = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (isdir)
|
||||
free(dst);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* copy_filep - Copy between FILE *fp.
|
||||
* @src: Source FILE.
|
||||
* @dst: Destination FILE.
|
||||
*
|
||||
* Function takes signals into account and will restart the syscalls as long
|
||||
* as error is %EINTR.
|
||||
*
|
||||
* Returns:
|
||||
* POSIX OK(0), or non-zero with errno set on error.
|
||||
*/
|
||||
int copy_filep(FILE *src, FILE *dst)
|
||||
{
|
||||
int result = 0;
|
||||
char *buf;
|
||||
|
||||
if (!src || !dst)
|
||||
return EINVAL;
|
||||
|
||||
buf = (char *)malloc(BUFSIZ);
|
||||
if (!buf)
|
||||
return errno;
|
||||
|
||||
while (1) {
|
||||
errno = 0;
|
||||
if (!fgets(buf, BUFSIZ, src)) {
|
||||
if (errno == EINTR) {
|
||||
clearerr(src);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (feof(src))
|
||||
break;
|
||||
|
||||
result = errno;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
while (EOF == fputs(buf, dst)) {
|
||||
if (errno == EINTR) {
|
||||
clearerr(dst);
|
||||
continue;
|
||||
}
|
||||
|
||||
result = errno;
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
|
||||
exit:
|
||||
free(buf);
|
||||
return errno = result;
|
||||
}
|
||||
|
||||
/**
|
||||
* fsendfile - copy data between file streams
|
||||
* @out: Destination stream
|
||||
* @in: Source stream
|
||||
* @sz: Size in bytes to copy.
|
||||
*
|
||||
* @out may be NULL, in which case @sz bytes are read and discarded
|
||||
* from @in. This is useful for streams where seeks are not
|
||||
* permitted. Additionally @sz may be the special value zero (0) in
|
||||
* which case fsendfile will copy until EOF is seen on @src.
|
||||
*
|
||||
* Returns:
|
||||
* The number of bytes copied. If there was an error, -1 is returned
|
||||
* and errno will be set accordingly.
|
||||
*/
|
||||
size_t fsendfile (FILE *out, FILE *in, size_t sz)
|
||||
{
|
||||
char *buf;
|
||||
size_t blk = BUFSIZ, num = 0, tot = 0;
|
||||
|
||||
buf = (char *)malloc(BUFSIZ);
|
||||
if (!buf)
|
||||
return -1;
|
||||
|
||||
while (!sz || tot < sz) {
|
||||
if (sz && ((sz - tot) < BUFSIZ))
|
||||
blk = sz - tot;
|
||||
|
||||
num = fread(buf, 1, blk, in);
|
||||
if (num == 0)
|
||||
break;
|
||||
|
||||
if (out && (fwrite(buf, num, 1, out) != 1)) {
|
||||
num = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
tot += num;
|
||||
}
|
||||
|
||||
free(buf);
|
||||
|
||||
return (num == (size_t)-1) ? (size_t)-1 : tot;
|
||||
}
|
||||
|
||||
/* Tests if dst is a directory, if so, reallocates dst and appends src filename returning 1 */
|
||||
static int adjust_target(char *src, char **dst)
|
||||
{
|
||||
int isdir = 0;
|
||||
|
||||
if (fisdir(*dst)) {
|
||||
int slash = 0;
|
||||
char *tmp, *ptr = strrchr(src, '/');
|
||||
|
||||
if (!ptr)
|
||||
ptr = src;
|
||||
else
|
||||
ptr++;
|
||||
|
||||
tmp = malloc(strlen(*dst) + strlen(ptr) + 2);
|
||||
if (!tmp) {
|
||||
errno = EISDIR;
|
||||
return 0;
|
||||
}
|
||||
|
||||
isdir = 1; /* Free dst before exit! */
|
||||
slash = fisslashdir(*dst);
|
||||
|
||||
sprintf(tmp, "%s%s%s", *dst, slash ? "" : "/", ptr);
|
||||
*dst = tmp;
|
||||
}
|
||||
|
||||
return isdir;
|
||||
}
|
||||
|
||||
#ifdef UNITTEST
|
||||
#include <stdio.h>
|
||||
/* XXX: Make a real set of unit tests ... */
|
||||
#if 0
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
if (argc < 3) {
|
||||
fprintf(stderr,
|
||||
"Usage: %s <src> <dst>\nCopies the <src> file to the <dst> file.\n",
|
||||
argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
printf("Copying file %s to %s\n", argv[1], argv[2]);
|
||||
|
||||
return copyfile(argv[1], argv[2], 0, 0);
|
||||
}
|
||||
#else
|
||||
int main(void)
|
||||
{
|
||||
int i = 0;
|
||||
char *files[] = {
|
||||
"/etc/passwd", "/tmp/tok", "/tmp/tok",
|
||||
"/etc/passwd", "/tmp/", "/tmp/passwd",
|
||||
"/etc/passwd", "/tmp", "/tmp/passwd",
|
||||
NULL
|
||||
};
|
||||
FILE *src, *dst;
|
||||
|
||||
fprintf(stderr, "\n=>Start testing copy_filep()\n");
|
||||
while (files[i]) {
|
||||
fprintf(stderr, "copy_filep(%s, %s)\t", files[i],
|
||||
files[i + 1]);
|
||||
src = fopen(files[i], "r");
|
||||
dst = fopen(files[i + 1], "w");
|
||||
if (copy_filep(src, dst))
|
||||
perror("Failed");
|
||||
|
||||
if (src)
|
||||
fclose(src);
|
||||
if (dst)
|
||||
fclose(dst);
|
||||
|
||||
if (fexist(files[i + 2]))
|
||||
fprintf(stderr, "OK => %s\n", files[i + 2]);
|
||||
|
||||
erase(files[i + 2]);
|
||||
i += 3;
|
||||
}
|
||||
|
||||
printf("\n\n=>Start testing copyfile()\n");
|
||||
i = 0;
|
||||
while (files[i]) {
|
||||
fprintf(stderr, "copyfile(%s, %s)\t", files[i], files[i + 1]);
|
||||
if (!copyfile(files[i], files[i + 1], 0, 0))
|
||||
perror("Failed");
|
||||
|
||||
if (fexist(files[i + 2]))
|
||||
fprintf(stderr, "OK => %s\n", files[i + 2]);
|
||||
|
||||
erase(files[i + 2]);
|
||||
i += 3;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
#endif /* UNITTEST */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* compile-command: "gcc -g -I../include -o unittest -DUNITTEST copyfile.c && ./unittest"
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
+229
@@ -0,0 +1,229 @@
|
||||
/* Functions for operating on files in directories.
|
||||
*
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <dirent.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
static const char *matcher_type = NULL;
|
||||
static int (*matcher_filter) (const char *file) = NULL;
|
||||
static int matcher(const struct dirent *entry)
|
||||
{
|
||||
char *pos = strrchr(entry->d_name, '.');
|
||||
|
||||
if (matcher_filter && !matcher_filter(entry->d_name))
|
||||
/* User matcher overrides the rest. */
|
||||
return 0;
|
||||
|
||||
/* Skip current dir "." from list of files. */
|
||||
if ((1 == strlen(entry->d_name) && entry->d_name[0] == '.') ||
|
||||
(2 == strlen(entry->d_name) && !strcmp(entry->d_name, "..")))
|
||||
return 0;
|
||||
|
||||
/* filetype == "" */
|
||||
if (matcher_type[0] == 0)
|
||||
return 1;
|
||||
|
||||
/* Entry has no "." */
|
||||
if (!pos)
|
||||
return 0;
|
||||
|
||||
return !strcmp(pos, matcher_type);
|
||||
}
|
||||
|
||||
/**
|
||||
* dir - List all files of a certain type in the given directory.
|
||||
* @dir: Base directory for dir operation.
|
||||
* @type: File type suffix, e.g. ".cfg".
|
||||
* @filter: Optional file name filter.
|
||||
* @list: Pointer to an array of file names.
|
||||
* @strip: Flag, if set dir() strips the file type.
|
||||
*
|
||||
* This function returns a @list of files, matching the @type suffix,
|
||||
* in the given directory @dir.
|
||||
*
|
||||
* The @list argument is a pointer to where to store the dynamically
|
||||
* allocated list of file names. This list should be free'd by first
|
||||
* calling free() on each file name and then on the list itself.
|
||||
*
|
||||
* If @filter is not %NULL it will be called for each file found. If
|
||||
* @filter returns non-zero the @file argument will be included in the
|
||||
* resulting @list. If @filter returns zero for given @file it will
|
||||
* be discarded.
|
||||
*
|
||||
* If the @strip flag is set the resulting @list of files has their
|
||||
* file type stripped, including the dot. So a match "config0.cfg"
|
||||
* would be returned as "config0".
|
||||
*
|
||||
* Returns:
|
||||
* Number of files in @list, zero if no matching files of @type.
|
||||
*/
|
||||
int dir(const char *dir, const char *type, int (*filter) (const char *file), char ***list, int strip)
|
||||
{
|
||||
int i, n, num = 0;
|
||||
char **files;
|
||||
struct dirent **namelist;
|
||||
|
||||
assert(list);
|
||||
|
||||
if (!dir)
|
||||
/* Assuming current directory */
|
||||
dir = ".";
|
||||
if (!type)
|
||||
/* Assuming all files. */
|
||||
type = "";
|
||||
|
||||
matcher_type = type;
|
||||
matcher_filter = filter;
|
||||
n = scandir(dir, &namelist, matcher, alphasort);
|
||||
if (n < 0) {
|
||||
perror("scandir");
|
||||
} else if (n > 0) {
|
||||
files = (char **)malloc(n * sizeof(char *));
|
||||
for (i = 0; i < n; i++) {
|
||||
if (files) {
|
||||
char *name = namelist[i]->d_name;
|
||||
char *type = strrchr(name, '.');
|
||||
|
||||
if (type && strip)
|
||||
*type = 0;
|
||||
|
||||
files[i] = strdup(name);
|
||||
num++;
|
||||
}
|
||||
free(namelist[i]);
|
||||
}
|
||||
if (num)
|
||||
*list = files;
|
||||
}
|
||||
|
||||
if (namelist)
|
||||
free(namelist);
|
||||
|
||||
return num;
|
||||
}
|
||||
|
||||
#ifdef UNITTEST
|
||||
#include <errno.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include "otn/c.h"
|
||||
|
||||
#define DIR_TYPE_IMAGE ".img"
|
||||
#define DIR_TYPE_SYSLOG ""
|
||||
#define DIR_TYPE_CONFIG ".cfg"
|
||||
#define STARTUP_CONFIG "startup-config.cfg"
|
||||
|
||||
int simulate_files(int creat)
|
||||
{
|
||||
int i;
|
||||
char *files[] =
|
||||
{ "config0.cfg", "config1.cfg", "config2.cfg", "config3.cfg",
|
||||
"rr109.img", "rx100.img", "rx107.img", "rm957.img", "messages"
|
||||
};
|
||||
|
||||
for (i = 0; i < ARRAY_ELEMENTS(files); i++) {
|
||||
if (creat)
|
||||
touch(files[i]);
|
||||
else
|
||||
erase(files[i]);
|
||||
}
|
||||
|
||||
if (creat)
|
||||
symlink("config2.cfg", STARTUP_CONFIG);
|
||||
else
|
||||
erase(STARTUP_CONFIG);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cfg_dir_filter(const char *file)
|
||||
{
|
||||
/* Skip the STARTUP_CONFIG file, it is a symbolic link to the
|
||||
* current startup configuration. */
|
||||
return ! !strcmp(file, STARTUP_CONFIG);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
int i, num;
|
||||
char *type = DIR_TYPE_CONFIG;
|
||||
char **files;
|
||||
int once = 1;
|
||||
|
||||
int is_startup_config(const char *entry) {
|
||||
static char file[80];
|
||||
|
||||
if (once) {
|
||||
int len = readlink(STARTUP_CONFIG, file, sizeof(file));
|
||||
|
||||
if (len == -1)
|
||||
return 0;
|
||||
|
||||
file[len] = 0;
|
||||
once = 0; /* Only once per call to dir() */
|
||||
}
|
||||
//printf ("Comparing link %s with entry %s\n", file, entry);
|
||||
return !strcmp(file, entry);
|
||||
}
|
||||
|
||||
simulate_files(1);
|
||||
|
||||
if (argc >= 2) {
|
||||
if (!strcasecmp("CONFIG", argv[1])) {
|
||||
type = DIR_TYPE_CONFIG;
|
||||
system("ls -l *" DIR_TYPE_CONFIG);
|
||||
}
|
||||
if (!strcasecmp("IMAGE", argv[1])) {
|
||||
type = DIR_TYPE_IMAGE;
|
||||
system("ls -l *" DIR_TYPE_IMAGE);
|
||||
}
|
||||
if (!strcasecmp("SYSLOG", argv[1])) {
|
||||
type = DIR_TYPE_SYSLOG;
|
||||
system("ls -l *");
|
||||
}
|
||||
}
|
||||
|
||||
num = dir(NULL, type, cfg_dir_filter, &files, 0);
|
||||
if (num) {
|
||||
for (i = 0; i < num; i++) {
|
||||
printf("%s", files[i]);
|
||||
if (is_startup_config(files[i]))
|
||||
printf(" --> startup-config");
|
||||
printf("\n");
|
||||
|
||||
free(files[i]);
|
||||
}
|
||||
free(files);
|
||||
}
|
||||
|
||||
simulate_files(0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif /* UNITTEST */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* compile-command: "gcc -g -DUNITTEST -o unittest dir.c"
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,53 @@
|
||||
/* Check if file exists
|
||||
*
|
||||
* Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/**
|
||||
* fexist - Check if a file exists in the file system.
|
||||
* @file: File to look for, with full path.
|
||||
*
|
||||
* Returns:
|
||||
* %TRUE(1) if the file exists, otherwise %FALSE(0).
|
||||
*/
|
||||
int fexist(char *file)
|
||||
{
|
||||
if (!file) {
|
||||
errno = EINVAL;
|
||||
return 0; /* Doesn't exist ... */
|
||||
}
|
||||
|
||||
if (-1 == access(file, F_OK))
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,51 @@
|
||||
/* Check if directory exists
|
||||
*
|
||||
* Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/**
|
||||
* fexist - Check if a file exists and is a directory.
|
||||
* @file: File to look for, with full path.
|
||||
*
|
||||
* Returns:
|
||||
* %TRUE(1) if the file exists and is a directory, otherwise %FALSE(0).
|
||||
*/
|
||||
int fisdir(char *file)
|
||||
{
|
||||
struct stat sb;
|
||||
|
||||
if (!stat(file, &sb) && S_ISDIR(sb.st_mode))
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,57 @@
|
||||
/* File mode bit operations
|
||||
*
|
||||
* Copyright (c) 2008 Claudio Matsuoka <http://helllabs.org/finit/>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/**
|
||||
* fmode - Return a file's mode bits.
|
||||
* @file: File to look for, with full path.
|
||||
*
|
||||
* Returns:
|
||||
* The mode bits or zero when @file does not exist and errno set to %ENOENT.
|
||||
*/
|
||||
mode_t fmode(char *file)
|
||||
{
|
||||
struct stat sb;
|
||||
|
||||
if (!file) {
|
||||
errno = EINVAL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!stat(file, &sb))
|
||||
return sb.st_mode;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
+102
@@ -0,0 +1,102 @@
|
||||
/* Collection of utility funcs and C library extensions for finit & its plugins
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef FINIT_LITE_H_
|
||||
#define FINIT_LITE_H_
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
|
||||
#include <unistd.h>
|
||||
|
||||
int fexist (char *file);
|
||||
int fisdir (char *file);
|
||||
mode_t fmode (char *file);
|
||||
|
||||
ssize_t copyfile (char *src, char *dst, int len, int sym);
|
||||
int movefile (char *src, char *dst);
|
||||
int copy_filep (FILE *src, FILE *dst);
|
||||
size_t fsendfile (FILE *out, FILE *in, size_t sz);
|
||||
|
||||
int dir (const char *dir, const char *type, int (*filter) (const char *file), char ***list, int strip);
|
||||
int rsync (char *src, char *dst, int delete, int (*filter) (const char *file));
|
||||
|
||||
#ifndef strlcpy
|
||||
size_t strlcpy (char *dst, const char *src, size_t siz);
|
||||
#endif
|
||||
#ifndef strlcat
|
||||
size_t strlcat (char *dst, const char *src, size_t siz);
|
||||
#endif
|
||||
#ifndef strtonum
|
||||
long long strtonum (const char *numstr, long long minval, long long maxval, const char **errstrp);
|
||||
#endif
|
||||
|
||||
static inline int fisslashdir(char *dir)
|
||||
{
|
||||
if (!dir) return 0;
|
||||
if (strlen (dir) > 0) return dir[strlen (dir) - 1] == '/';
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Validate string, non NULL and not zero length */
|
||||
static inline int string_valid (const char *s)
|
||||
{
|
||||
return s && strlen (s);
|
||||
}
|
||||
|
||||
/* Relaxed comparison, e.g., sys_string_match("small", "smaller") => TRUE */
|
||||
static inline int string_match (const char *a, const char *b)
|
||||
{
|
||||
size_t min = MIN(strlen (a), strlen (b));
|
||||
|
||||
return !strncasecmp (a, b, min);
|
||||
}
|
||||
|
||||
/* Strict comparison, e.g., sys_string_match("small", "smaller") => FALSE */
|
||||
static inline int string_compare (const char *a, const char *b)
|
||||
{
|
||||
return strlen (a) == strlen (b) && !strcmp (a, b);
|
||||
}
|
||||
|
||||
/* Strict comparison, like sys_string_compare(), but case insensitive,
|
||||
* e.g., sys_string_match("small", "SmAlL") => TRUE
|
||||
*/
|
||||
static inline int string_case_compare (const char *a, const char *b)
|
||||
{
|
||||
return strlen (a) == strlen (b) && !strcasecmp (a, b);
|
||||
}
|
||||
|
||||
#endif /* FINIT_LITE_H_ */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
|
||||
+302
@@ -0,0 +1,302 @@
|
||||
/* Micro "rsync" implementation.
|
||||
*
|
||||
* Copyright (c) 2011, 2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <stdlib.h> /* NULL, free() */
|
||||
#include <string.h> /* strlen() */
|
||||
#include <strings.h> /* rindex() */
|
||||
#include <stdio.h>
|
||||
#include <sys/param.h> /* MAX(), isset(), setbit(), TRUE, FALSE, et consortes. :-) */
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#include "lite.h"
|
||||
#include "../helpers.h"
|
||||
|
||||
static int copy(char *src, char *dst);
|
||||
static int mdir(char *buf, size_t buf_len, char *dir, char *name, mode_t mode);
|
||||
static int prune(char *dst, char **new_files, int new_num);
|
||||
|
||||
|
||||
/**
|
||||
* rsync - Synchronize contents and optionally remove non-existing backups
|
||||
* @src: Source directory
|
||||
* @dst: Destination directory
|
||||
* @delete: Prune files from @dst that no longer exist in @src.
|
||||
* @filter: Optional filtering function for source directory.
|
||||
*
|
||||
* This is a miniature implementation of the famous rsync for local use only.
|
||||
* In fact, it is not even a true rsync since it copies all files from @src
|
||||
* to @dst. The @delete option is useful for creating backups, when set all
|
||||
* files removed from src since last backup are pruned from the destination
|
||||
* (backup) directory.
|
||||
*
|
||||
* The filter callback, @filter, if provided, is used to determine what files to
|
||||
* include from the source directory when backing up. If a file is to be skipped
|
||||
* the callback should simply return zero.
|
||||
*
|
||||
* Returns:
|
||||
* POSIX OK(0), or non-zero with @errno set on error.
|
||||
*/
|
||||
int rsync(char *src, char *dst, int delete, int (*filter) (const char *file))
|
||||
{
|
||||
char source[256];
|
||||
char dest[256];
|
||||
int i = 0, num = 0, result = 0;
|
||||
char **files; /* Array of file names. */
|
||||
|
||||
if (!fisdir(dst))
|
||||
makedir(dst, 0755);
|
||||
|
||||
if (!fisdir(src)) {
|
||||
if (!fexist(src))
|
||||
return 1;
|
||||
|
||||
if (copy(src, dst))
|
||||
result++;
|
||||
|
||||
return errno;
|
||||
}
|
||||
|
||||
/* Copy dir as well? */
|
||||
if (!fisslashdir(src)) {
|
||||
char *ptr = rindex(src, '/');
|
||||
|
||||
if (!ptr)
|
||||
ptr = src;
|
||||
else
|
||||
ptr++;
|
||||
|
||||
if (mdir(dest, sizeof(dest), dst, ptr, fmode(src)))
|
||||
return 1;
|
||||
dst = dest;
|
||||
}
|
||||
|
||||
num = dir(src, "", filter, &files, 0);
|
||||
for (i = 0; i < num; i++) {
|
||||
/* Recursively copy sub-directries */
|
||||
snprintf(source, sizeof(source), "%s%s%s", src, fisslashdir(src) ? "" : "/", files[i]);
|
||||
if (fisdir(source)) {
|
||||
char dst2[256];
|
||||
|
||||
strcat(source, "/");
|
||||
if (mdir (dst2, sizeof(dst2), dst, files[i], fmode(source))) {
|
||||
result++;
|
||||
continue;
|
||||
}
|
||||
|
||||
rsync(source, dst2, delete, filter);
|
||||
continue; /* Next file/dir in @src to copy... */
|
||||
}
|
||||
|
||||
if (copy(source, dst))
|
||||
result++;
|
||||
}
|
||||
|
||||
/* We ignore any errors from the pruning, that phase albeit useful is only
|
||||
* cosmetic. --Jocke 2011-03-24 */
|
||||
if (delete)
|
||||
prune(dst, files, num);
|
||||
|
||||
if (num) {
|
||||
for (i = 0; i < num; i++)
|
||||
free(files[i]);
|
||||
free(files);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static int copy(char *src, char *dst)
|
||||
{
|
||||
errno = 0;
|
||||
|
||||
copyfile(src, dst, 0, 1);
|
||||
if (errno) {
|
||||
if (errno != EEXIST)
|
||||
return 1;
|
||||
|
||||
errno = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Creates dir/name @mode ... skipping / if dir already ends so. */
|
||||
static int mdir(char *buf, size_t buf_len, char *dir, char *name, mode_t mode)
|
||||
{
|
||||
snprintf(buf, buf_len, "%s%s%s/", dir, fisslashdir(dir) ? "" : "/", name);
|
||||
if (mkdir(buf, mode)) {
|
||||
if (EEXIST != errno)
|
||||
return 1;
|
||||
|
||||
errno = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int find(char *file, char **files, int num)
|
||||
{
|
||||
int n;
|
||||
|
||||
for (n = 0; n < num; n++)
|
||||
if (!strncmp (files[n], file, MAX(strlen(files[n]), strlen(file))))
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Prune old files, no longer existing on source, from destination directory. */
|
||||
static int prune(char *dst, char **new_files, int new_num)
|
||||
{
|
||||
int num, result = 0;
|
||||
char **files;
|
||||
|
||||
num = dir(dst, "", NULL, &files, 0);
|
||||
if (num) {
|
||||
int i;
|
||||
|
||||
for (i = 0; i < num; i++) {
|
||||
if (!find(files[i], new_files, new_num)) {
|
||||
char *name;
|
||||
size_t len = strlen(files[i]) + 2 + strlen(dst);
|
||||
|
||||
name = malloc(len);
|
||||
if (name) {
|
||||
snprintf(name, len, "%s%s%s", dst, fisslashdir(dst) ? "" : "/", files[i]);
|
||||
if (remove(name))
|
||||
result++;
|
||||
free(name);
|
||||
}
|
||||
}
|
||||
free(files[i]);
|
||||
}
|
||||
free(files);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
#ifdef UNITTEST
|
||||
#define BASE "/tmp/.unittest/"
|
||||
#define SRC BASE "src/"
|
||||
#define DST BASE "dst/"
|
||||
|
||||
char *files[] = {
|
||||
SRC "sub1/1.tst",
|
||||
SRC "sub1/2.tst",
|
||||
SRC "sub1/3.tst",
|
||||
SRC "sub2/4.tst",
|
||||
SRC "sub2/5.tst",
|
||||
SRC "sub2/6.tst",
|
||||
SRC "sub3/7.tst",
|
||||
SRC "sub3/8.tst",
|
||||
SRC "sub3/9.tst",
|
||||
NULL
|
||||
};
|
||||
|
||||
void cleanup_test(void)
|
||||
{
|
||||
system("rm -rf " BASE);
|
||||
}
|
||||
|
||||
void setup_test(void)
|
||||
{
|
||||
int i;
|
||||
char cmd[256];
|
||||
mode_t dir_modes[] = { 755, 700 };
|
||||
mode_t file_modes[] = { 644, 600 };
|
||||
|
||||
cleanup_test();
|
||||
|
||||
mkdir(BASE, 0755);
|
||||
mkdir(SRC, 0755);
|
||||
mkdir(DST, 0755);
|
||||
|
||||
for (i = 0; files[i]; i++) {
|
||||
snprintf(cmd, sizeof(cmd), "mkdir -m %d -p `dirname %s`",
|
||||
dir_modes[i % 2], files[i]);
|
||||
system(cmd);
|
||||
|
||||
snprintf(cmd, sizeof(cmd), "touch %s; chmod %d %s", files[i],
|
||||
file_modes[i % 2], files[i]);
|
||||
system(cmd);
|
||||
}
|
||||
}
|
||||
|
||||
int run_test()
|
||||
{
|
||||
#if 0
|
||||
setup_test();
|
||||
puts("Before:");
|
||||
system("tree -np " BASE);
|
||||
|
||||
rsync(SRC, DST, 0, NULL);
|
||||
puts("After:");
|
||||
system("tree -np " BASE);
|
||||
cleanup_test();
|
||||
#endif
|
||||
|
||||
setup_test();
|
||||
rsync(BASE "src", DST, 0, NULL);
|
||||
puts("Only partial rsync of src <-- No slash!");
|
||||
system("tree -np " BASE);
|
||||
#if 0
|
||||
cleanup_test();
|
||||
setup_test();
|
||||
rsync(BASE "src/sub1", BASE "dst", 0, NULL);
|
||||
puts("Only partial rsync of src/sub1 <-- No slashes!!");
|
||||
system("tree -np " BASE);
|
||||
|
||||
cleanup_test();
|
||||
setup_test();
|
||||
rsync(BASE "src/sub1/", DST, 0, NULL);
|
||||
puts("Only partial rsync of src/sub1/");
|
||||
system("tree -np " BASE);
|
||||
|
||||
cleanup_test();
|
||||
setup_test();
|
||||
rsync(BASE "src/sub1", DST, 0, NULL);
|
||||
puts("Only partial rsync of src/sub1 <-- No slash!");
|
||||
system("tree -np " BASE);
|
||||
|
||||
rsync("/etc", "/var/tmp", 0, NULL);
|
||||
puts("Real life test:");
|
||||
system("tree -np /var/tmp");
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
atexit(cleanup_test);
|
||||
|
||||
return run_test();
|
||||
}
|
||||
#endif /* UNITTEST */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* compile-command: "make -f rsync.mk"
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,22 @@
|
||||
# Unittest makefile for rsync.c
|
||||
.PHONY: clean
|
||||
|
||||
SRC = rsync.c
|
||||
OBJS = dir.o copyfile.o fexist.o fisdir.o fmode.o
|
||||
UNIT = rsync.unittest
|
||||
#CPPFLAGS = -DDEBUG -I../../.. -I../../include
|
||||
|
||||
all: build run
|
||||
|
||||
clean:
|
||||
@rm -f $(OBJS) $(UNIT)
|
||||
|
||||
# This rule also forces a cleanup of built objects to not leave any object files
|
||||
# lingering in the tree to interfere with cross builds.
|
||||
build: clean $(OBJS)
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) -o $(UNIT) -DUNITTEST $(SRC) $(OBJS)
|
||||
@rm -f $(OBJS)
|
||||
|
||||
run:
|
||||
@./$(UNIT)
|
||||
|
||||
@@ -0,0 +1,66 @@
|
||||
/* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifndef strlcat
|
||||
/*
|
||||
* Appends src to string dst of size siz (unlike strncat, siz is the
|
||||
* full size of dst, not space left). At most siz-1 characters
|
||||
* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
|
||||
* Returns strlen(src) + MIN(siz, strlen(initial dst)).
|
||||
* If retval >= siz, truncation occurred.
|
||||
*/
|
||||
size_t
|
||||
strlcat(char *dst, const char *src, size_t siz)
|
||||
{
|
||||
char *d = dst;
|
||||
const char *s = src;
|
||||
size_t n = siz;
|
||||
size_t dlen;
|
||||
|
||||
/* Find the end of dst and adjust bytes left but don't go past end */
|
||||
while (n-- != 0 && *d != '\0')
|
||||
d++;
|
||||
dlen = d - dst;
|
||||
n = siz - dlen;
|
||||
|
||||
if (n == 0)
|
||||
return(dlen + strlen(s));
|
||||
while (*s != '\0') {
|
||||
if (n != 1) {
|
||||
*d++ = *s;
|
||||
n--;
|
||||
}
|
||||
s++;
|
||||
}
|
||||
*d = '\0';
|
||||
|
||||
return(dlen + (s - src)); /* count does not include NUL */
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* c-file-style: "bsd"
|
||||
* End:
|
||||
*/
|
||||
|
||||
|
||||
@@ -19,6 +19,7 @@
|
||||
#include <sys/types.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifndef strlcpy
|
||||
/*
|
||||
* Copy src to string dst of size siz. At most siz-1 characters
|
||||
* will be copied. Always NUL terminates (unless siz == 0).
|
||||
@@ -50,6 +51,8 @@ strlcpy(char *dst, const char *src, size_t siz)
|
||||
return(s - src - 1); /* count does not include NUL */
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
@@ -0,0 +1,67 @@
|
||||
/* $OpenBSD: strtonum.c,v 1.6 2004/08/03 19:38:01 millert Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2004 Ted Unangst and Todd Miller
|
||||
* All rights reserved.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <limits.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifndef strtonum
|
||||
#define INVALID 1
|
||||
#define TOOSMALL 2
|
||||
#define TOOLARGE 3
|
||||
|
||||
long long
|
||||
strtonum(const char *numstr, long long minval, long long maxval,
|
||||
const char **errstrp)
|
||||
{
|
||||
long long ll = 0;
|
||||
char *ep;
|
||||
int error = 0;
|
||||
struct errval {
|
||||
const char *errstr;
|
||||
int err;
|
||||
} ev[4] = {
|
||||
{ NULL, 0 },
|
||||
{ "invalid", EINVAL },
|
||||
{ "too small", ERANGE },
|
||||
{ "too large", ERANGE },
|
||||
};
|
||||
|
||||
ev[0].err = errno;
|
||||
errno = 0;
|
||||
if (minval > maxval)
|
||||
error = INVALID;
|
||||
else {
|
||||
ll = strtoll(numstr, &ep, 10);
|
||||
if (numstr == ep || *ep != '\0')
|
||||
error = INVALID;
|
||||
else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval)
|
||||
error = TOOSMALL;
|
||||
else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval)
|
||||
error = TOOLARGE;
|
||||
}
|
||||
if (errstrp != NULL)
|
||||
*errstrp = ev[error].errstr;
|
||||
errno = ev[error].err;
|
||||
if (error)
|
||||
ll = 0;
|
||||
|
||||
return (ll);
|
||||
}
|
||||
#endif
|
||||
Submodule
+1
Submodule libuev added at ce3930f0cf
@@ -26,29 +26,29 @@
|
||||
#include <dirent.h> /* readdir() et al */
|
||||
#include <poll.h>
|
||||
#include <string.h>
|
||||
#include <sys/queue.h> /* BSD sys/queue.h API */
|
||||
|
||||
#include "finit.h"
|
||||
#include "private.h"
|
||||
#include "helpers.h"
|
||||
#include "plugin.h"
|
||||
#include "svc.h"
|
||||
#include "queue.h" /* BSD sys/queue.h API */
|
||||
#include "lite.h"
|
||||
|
||||
#define is_io_plugin(p) ((p)->io.cb && (p)->io.fd >= 0)
|
||||
|
||||
static size_t num_fds = 0;
|
||||
static struct pollfd fds[MAX_NUM_FDS];
|
||||
static LIST_HEAD(, plugin) plugins = LIST_HEAD_INITIALIZER();
|
||||
static char *plugpath = NULL; /* Set by first load. */
|
||||
static TAILQ_HEAD(plugin_head, plugin) plugins = TAILQ_HEAD_INITIALIZER(plugins);
|
||||
|
||||
static void check_plugin_depends(plugin_t *plugin);
|
||||
|
||||
int plugin_register(plugin_t *plugin)
|
||||
{
|
||||
int inuse = 0;
|
||||
|
||||
if (!plugin) {
|
||||
errno = EINVAL;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Setup default name if none is provided */
|
||||
if (!plugin->name) {
|
||||
Dl_info info;
|
||||
|
||||
@@ -58,51 +58,102 @@ int plugin_register(plugin_t *plugin)
|
||||
plugin->name = (char *)info.dli_fname;
|
||||
}
|
||||
|
||||
if (is_io_plugin(plugin)) {
|
||||
if (num_fds + 1 >= MAX_NUM_FDS) {
|
||||
num_fds = MAX_NUM_SVC;
|
||||
errno = ENOMEM;
|
||||
return 1;
|
||||
}
|
||||
num_fds++;
|
||||
inuse++;
|
||||
/* Already registered? */
|
||||
if (plugin_find(plugin->name)) {
|
||||
_d("... %s already loaded.", plugin->name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Resolve plugin dependencies */
|
||||
check_plugin_depends(plugin);
|
||||
|
||||
TAILQ_INSERT_TAIL(&plugins, plugin, link);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Not called, at the moment plugins cannot be unloaded. */
|
||||
int plugin_unregister(plugin_t *plugin)
|
||||
{
|
||||
TAILQ_REMOVE(&plugins, plugin, link);
|
||||
|
||||
if (plugin->svc.cb) {
|
||||
svc_t *svc = svc_find_by_name(plugin->name);
|
||||
svc_t *svc = svc_find(plugin->name);
|
||||
|
||||
if (svc) {
|
||||
plugin->svc.id = svc_id(svc);
|
||||
svc->plugin = &plugin->svc;
|
||||
inuse++;
|
||||
svc->cb = NULL;
|
||||
svc->dynamic = 0;
|
||||
svc->dynamic_stop = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (!inuse) {
|
||||
_e("No service \"%s\" loaded, skipping plugin.", basename(plugin->name));
|
||||
/* Unload plugin */
|
||||
if (dlclose(plugin->handle)) {
|
||||
_e("Failed unloading %s ...", plugin->name);
|
||||
return 1;
|
||||
}
|
||||
|
||||
LIST_INSERT_HEAD(&plugins, plugin, link);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int plugin_unregister(plugin_t *plugin)
|
||||
|
||||
// _d("Comparing %s against plugin %s", str, p->name);
|
||||
#define SEARCH_PLUGIN(str) \
|
||||
PLUGIN_ITERATOR(p, tmp) { \
|
||||
if (!strcmp(p->name, str)) \
|
||||
return p; \
|
||||
}
|
||||
|
||||
/**
|
||||
* plugin_find - Find a plugin by name
|
||||
* @name: With or without path, or .so extension
|
||||
*
|
||||
* This function uses an opporunistic search for a suitable plugin and
|
||||
* returns the first match. Albeit with at least some measure of
|
||||
* heuristics.
|
||||
*
|
||||
* First it checks for an exact match. If no match is found and @name
|
||||
* starts with a slash the search ends. Otherwise a new search with the
|
||||
* plugin path prepended to @name is made. Also, if @name does not end
|
||||
* with .so it too is added to @name before searching.
|
||||
*
|
||||
* Returns:
|
||||
* On success the pointer to the matching &plugin_t is returned,
|
||||
* otherwise %NULL is returned.
|
||||
*/
|
||||
plugin_t *plugin_find(char *name)
|
||||
{
|
||||
LIST_REMOVE(plugin, link);
|
||||
plugin_t *p, *tmp;
|
||||
|
||||
/* XXX: Unfinished, add cleanup code here! */
|
||||
if (!name) {
|
||||
errno = EINVAL;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
SEARCH_PLUGIN(name);
|
||||
|
||||
if (plugpath && name[0] != '/') {
|
||||
int noext;
|
||||
char path[CMD_SIZE];
|
||||
|
||||
noext = strcmp(name + strlen(name) - 3, ".so");
|
||||
snprintf (path, sizeof(path), "%s%s%s%s", plugpath,
|
||||
fisslashdir(plugpath) ? "" : "/",
|
||||
name, noext ? ".so" : "");
|
||||
|
||||
SEARCH_PLUGIN(path);
|
||||
}
|
||||
|
||||
errno = ENOENT;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Private daemon API *******************************************************/
|
||||
void run_hooks(hook_point_t no)
|
||||
void plugin_run_hooks(hook_point_t no)
|
||||
{
|
||||
plugin_t *p;
|
||||
plugin_t *p, *tmp;
|
||||
|
||||
PLUGIN_ITERATOR(p) {
|
||||
PLUGIN_ITERATOR(p, tmp) {
|
||||
if (p->hook[no].cb) {
|
||||
_d("Calling %s hook n:o %d from runloop...", basename(p->name), no);
|
||||
p->hook[no].cb(p->hook[no].arg);
|
||||
@@ -110,107 +161,143 @@ void run_hooks(hook_point_t no)
|
||||
}
|
||||
}
|
||||
|
||||
void run_services(void)
|
||||
{
|
||||
plugin_t *p;
|
||||
|
||||
PLUGIN_ITERATOR(p) {
|
||||
if (p->svc.cb) {
|
||||
_d("Calling svc %s from runloop...", basename(p->name));
|
||||
p->svc.cb(p->svc.arg, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Generic libev I/O callback, looks up correct plugin and calls its callback */
|
||||
static void generic_io_cb(int fd, int events)
|
||||
static void generic_io_cb(uev_ctx_t *UNUSED(ctx), uev_t *w, void *arg, int events)
|
||||
{
|
||||
plugin_t *p;
|
||||
plugin_t *p = (plugin_t *)arg;
|
||||
|
||||
/* Find matching plugin, pick first matching fd */
|
||||
PLUGIN_ITERATOR(p) {
|
||||
if (is_io_plugin(p) && p->io.fd == fd) {
|
||||
_d("Calling I/O %s from runloop...", basename(p->name));
|
||||
p->io.cb(p->io.arg, fd, events);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (is_io_plugin(p) && p->io.fd == w->fd) {
|
||||
/* Stop watcher, callback may close descriptor on us ... */
|
||||
uev_io_stop(w);
|
||||
|
||||
void io_monitor(void)
|
||||
{
|
||||
int ret;
|
||||
size_t i;
|
||||
_d("Calling I/O %s from runloop...", basename(p->name));
|
||||
p->io.cb(p->io.arg, w->fd, events);
|
||||
|
||||
while ((ret = poll(fds, num_fds, 500))) {
|
||||
if (-1 == ret) {
|
||||
if (EINTR == errno)
|
||||
continue;
|
||||
|
||||
_e("Failed polling I/O plugin descriptors, error %d: %s",
|
||||
errno, strerror(errno));
|
||||
break;
|
||||
}
|
||||
|
||||
/* Traverse all I/O fds and run callbacks */
|
||||
for (i = 0; i < num_fds; i++) {
|
||||
if (fds[i].revents)
|
||||
generic_io_cb(fds[i].fd, fds[i].revents);
|
||||
}
|
||||
|
||||
break;
|
||||
/* Update fd, may be changed by plugin callback, e.g., if FIFO */
|
||||
uev_io_set(w, p->io.fd, p->io.flags);
|
||||
}
|
||||
}
|
||||
|
||||
/* Setup any I/O callbacks for plugins that use them */
|
||||
static void init_plugins(void)
|
||||
static void init_plugins(uev_ctx_t *ctx)
|
||||
{
|
||||
int i = 0;
|
||||
plugin_t *p;
|
||||
plugin_t *p, *tmp;
|
||||
|
||||
PLUGIN_ITERATOR(p) {
|
||||
PLUGIN_ITERATOR(p, tmp) {
|
||||
if (is_io_plugin(p)) {
|
||||
_d("Initializing plugin %s for I/O", basename(p->name));
|
||||
fds[i].revents = 0;
|
||||
fds[i].events = p->io.flags;
|
||||
fds[num_fds++].fd = p->io.fd;
|
||||
uev_io_init(ctx, &p->watcher, generic_io_cb, p, p->io.fd, p->io.flags);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int load_plugins(char *path)
|
||||
|
||||
/**
|
||||
* load_one - Load one plugin
|
||||
* @path: Path to finit plugins, usually %PLUGIN_PATH
|
||||
* @name: Name of plugin, optionally ending in ".so"
|
||||
*
|
||||
* Loads a plugin from @path/@name[.so]. Note, if ".so" is missing from
|
||||
* the plugin @name it is added before attempting to load.
|
||||
*
|
||||
* It is up to the plugin itself ot register itself as a "ctor" with the
|
||||
* %PLUGIN_INIT macro so that plugin_register() is called automatically.
|
||||
*
|
||||
* Returns:
|
||||
* POSIX OK(0) on success, non-zero otherwise.
|
||||
*/
|
||||
static int load_one(char *path, char *name)
|
||||
{
|
||||
int noext;
|
||||
char sofile[CMD_SIZE];
|
||||
void *handle;
|
||||
plugin_t *plugin;
|
||||
|
||||
if (!path || !fisdir(path) || !name) {
|
||||
errno = EINVAL;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Compose full path, with optional .so extension, to plugin */
|
||||
noext = strcmp(name + strlen(name) - 3, ".so");
|
||||
snprintf(sofile, sizeof(sofile), "%s/%s%s", path, name, noext ? ".so" : "");
|
||||
|
||||
_d("Loading plugin %s ...", basename(sofile));
|
||||
/* Ignore leak, we do not support unloading of plugins atm.
|
||||
* TODO: Add handle to list of loaded plugins, dlclose() on
|
||||
* plugin_unregister() */
|
||||
handle = dlopen(sofile, RTLD_LAZY | RTLD_GLOBAL);
|
||||
if (!handle) {
|
||||
_e("Failed loading plugin %s: %s", sofile, dlerror());
|
||||
return 1;
|
||||
}
|
||||
|
||||
plugin = TAILQ_LAST(&plugins, plugin_head);
|
||||
if (!plugin) {
|
||||
_e("Plugin %s failed to register, unloading from memory.", sofile);
|
||||
dlclose(handle);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Remember handle from dlopen() for plugin_unregister() */
|
||||
plugin->handle = handle;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* check_plugin_depends - Check and load any plugins this one depends on.
|
||||
* @plugin: Plugin with possible depends to check
|
||||
*
|
||||
* Very simple dependency resolver, should actually load the plugin of
|
||||
* the correct .name, but currently loads a matching filename.
|
||||
*
|
||||
* Works, but only for now. A better way might be to have a try_load()
|
||||
* that actually loads all plugins and checks their &plugin_t for the
|
||||
* correct .name.
|
||||
*/
|
||||
static void check_plugin_depends(plugin_t *plugin)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < PLUGIN_DEP_MAX && plugin->depends[i]; i++) {
|
||||
// _d("Plugin %s depends on %s ...", plugin->name, plugin->depends[i]);
|
||||
if (plugin_find(plugin->depends[i])) {
|
||||
// _d("OK plugin %s was already loaded.", plugin->depends[i]);
|
||||
continue;
|
||||
}
|
||||
|
||||
load_one(plugpath, plugin->depends[i]);
|
||||
}
|
||||
}
|
||||
|
||||
int plugin_load_all(uev_ctx_t *ctx, char *path)
|
||||
{
|
||||
int fail = 0;
|
||||
DIR *dp = opendir(path);
|
||||
struct dirent *entry;
|
||||
|
||||
print_desc("Loading plugins", NULL);
|
||||
if (!dp) {
|
||||
_e("Failed, cannot open plugin directory %s: %s", path, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
plugpath = path;
|
||||
|
||||
while ((entry = readdir(dp))) {
|
||||
char *ext = entry->d_name + strlen(entry->d_name) - 3;
|
||||
if (entry->d_name[0] == '.')
|
||||
continue; /* Skip . and .. directories */
|
||||
|
||||
if (!strcmp(ext, ".so")) {
|
||||
void *handle;
|
||||
char filename[1024];
|
||||
|
||||
snprintf(filename, sizeof(filename), "%s/%s", path, entry->d_name);
|
||||
print_descr(" Loading plugin ", basename(filename));
|
||||
handle = dlopen(filename, RTLD_LAZY);
|
||||
if (!handle) {
|
||||
_d("Failed loading plugin %s: %s", filename, dlerror());
|
||||
print_result(1);
|
||||
return 1;
|
||||
}
|
||||
print_result(0);
|
||||
}
|
||||
// print_desc(" Loading plugin ", basename(plugin));
|
||||
if (load_one(path, entry->d_name))
|
||||
fail++;
|
||||
// print_result(result);
|
||||
}
|
||||
|
||||
closedir(dp);
|
||||
init_plugins();
|
||||
init_plugins(ctx);
|
||||
|
||||
return 0;
|
||||
return fail;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@@ -24,24 +24,28 @@
|
||||
#ifndef FINIT_PLUGIN_H_
|
||||
#define FINIT_PLUGIN_H_
|
||||
|
||||
#include <poll.h>
|
||||
#include <sys/queue.h> /* BSD sys/queue.h API */
|
||||
#include "queue.h" /* BSD sys/queue.h API */
|
||||
#include "svc.h"
|
||||
#include "libuev/uev.h"
|
||||
|
||||
#define PLUGIN_IO_READ POLLIN
|
||||
#define PLUGIN_IO_WRITE POLLOUT
|
||||
#define PLUGIN_DEP_MAX 10
|
||||
#define PLUGIN_IO_READ UEV_READ
|
||||
#define PLUGIN_IO_WRITE UEV_WRITE
|
||||
|
||||
#define PLUGIN_INIT(x) static void __attribute__ ((constructor)) x(void)
|
||||
#define PLUGIN_EXIT(x) static void __attribute__ ((destructor)) x(void)
|
||||
|
||||
#define PLUGIN_ITERATOR(x) LIST_FOREACH(x, &plugins, link)
|
||||
#define PLUGIN_ITERATOR(x, tmp) TAILQ_FOREACH_SAFE(x, &plugins, link, tmp)
|
||||
|
||||
/*
|
||||
* Predefined hook points for easier plugin debugging
|
||||
*/
|
||||
typedef enum {
|
||||
HOOK_BASEFS_UP = 0,
|
||||
HOOK_ROOTFS_UP = 0,
|
||||
HOOK_BASEFS_UP,
|
||||
HOOK_NETWORK_UP,
|
||||
HOOK_SYSTEM_UP,
|
||||
HOOK_SVC_UP,
|
||||
HOOK_SHUTDOWN,
|
||||
HOOK_MAX_NUM
|
||||
} hook_point_t;
|
||||
@@ -64,7 +68,8 @@ typedef enum {
|
||||
* The "dynamic events" discussed in the svc callback is for external
|
||||
* service plugins to implement. However, it can be anything that
|
||||
* can cause a service to need to SIGHUP at runtime. E.g., acquiring
|
||||
* a DHCP lease, or an interface going UP/DOWN.
|
||||
* a DHCP lease, or an interface going UP/DOWN. The event itself can
|
||||
* be passed as an integer @event and any optional argument @event_arg
|
||||
*
|
||||
* It is up to the external service plugin to track these events and
|
||||
* relay them to each @dynamic service plugins' callback. I.e., to
|
||||
@@ -72,21 +77,23 @@ typedef enum {
|
||||
*/
|
||||
typedef struct plugin {
|
||||
/* BSD sys/queue.h linked list node. */
|
||||
LIST_ENTRY(plugin) link;
|
||||
TAILQ_ENTRY(plugin) link;
|
||||
|
||||
/* Plugin name, defaults to plugin path if unset.
|
||||
* NOTE: Must be same as @cmd for service plugins! */
|
||||
/* Handle to be sent to dlclose() when plugins is unloaded. */
|
||||
void *handle;
|
||||
|
||||
/* Event loop handler, used internally by Finit */
|
||||
uev_t watcher;
|
||||
|
||||
/* Plugin name, defaults to basename of plugin path if unset.
|
||||
* NOTE: Must match cmd for services or inetd plugins! */
|
||||
char *name;
|
||||
|
||||
/* Service callback to be called once per lap of runloop. */
|
||||
struct plugin_svc {
|
||||
/* Private */
|
||||
int id; /* Service ID# to match this service plugin against, set on installation. */
|
||||
/* Public */
|
||||
void *arg; /* Optional argument to callback func, set by plugin. */
|
||||
int dynamic; /* Reload (SIGHUP) on dynamic event? Set by plugin. */
|
||||
int private; /* For callbacks to use freely, possibly to store "states", set by plugin. */
|
||||
int (*cb)(void *arg, int event);
|
||||
struct {
|
||||
int dynamic; /* Callback wants external events as well. */
|
||||
int dynamic_stop; /* Callback allows dynamic events to stop. */
|
||||
svc_cmd_t (*cb)(svc_t *svc, int event, void *event_arg);
|
||||
} svc;
|
||||
|
||||
/* List of hook callbacks. */
|
||||
@@ -101,15 +108,23 @@ typedef struct plugin {
|
||||
void *arg;
|
||||
void (*cb)(void *arg, int fd, int events);
|
||||
} io;
|
||||
} plugin_t;
|
||||
|
||||
/* Used by svc.h */
|
||||
typedef struct plugin_svc plugin_svc_t;
|
||||
/* Inetd Plugin, stdio used as client socket.
|
||||
* @type argument will be either SOCK_DGRAM or SOCK_STREAM */
|
||||
struct {
|
||||
int (*cmd)(int type);
|
||||
} inetd;
|
||||
|
||||
char *depends[PLUGIN_DEP_MAX]; /* List of other .name's this depends on. */
|
||||
} plugin_t;
|
||||
|
||||
/* Public plugin API */
|
||||
int plugin_register (plugin_t *plugin);
|
||||
int plugin_unregister (plugin_t *plugin);
|
||||
|
||||
/* Helper API */
|
||||
plugin_t *plugin_find (char *name);
|
||||
|
||||
#endif /* FINIT_PLUGIN_H_ */
|
||||
|
||||
/**
|
||||
|
||||
+12
-10
@@ -1,10 +1,12 @@
|
||||
# Plugin based services architecture for finit -*-Makefile-*-
|
||||
CFLAGS = -fPIC -g -Os
|
||||
CFLAGS += -fPIC -Os
|
||||
CPPFLAGS += -I..
|
||||
LDFLAGS = -shared
|
||||
PLUGINS = initctl.so alsa-utils.so bootmisc.so dbus.so hwclock.so \
|
||||
resolvconf.so urandom.so x11-common.so
|
||||
LDFLAGS := $(filter-out -rdynamic, $(LDFLAGS))
|
||||
LDFLAGS += -shared
|
||||
PLUGINS ?= initctl.so alsa-utils.so bootmisc.so dbus.so hwclock.so \
|
||||
resolvconf.so urandom.so x11-common.so tty.so time.so
|
||||
DEPS = $(addprefix .,$(PLUGINS:.so=.d))
|
||||
TOPDIR ?= $(shell pwd)
|
||||
|
||||
include ../common.mk
|
||||
|
||||
@@ -17,18 +19,18 @@ distclean: clean
|
||||
-@$(RM) $(JUNK) $(DEPS)
|
||||
|
||||
install: all
|
||||
@install -d $(DESTDIR)$(prefix)$(PLUGIN_DIR)
|
||||
@install -d $(DESTDIR)$(plugindir)
|
||||
@for plugin in $(PLUGINS); do \
|
||||
echo " INSTALL $(DESTDIR)$(prefix)$(PLUGIN_DIR)/$$plugin"; \
|
||||
cp $$plugin $(DESTDIR)$(prefix)$(PLUGIN_DIR); \
|
||||
echo " INSTALL $(DESTDIR)$(plugindir)/$$plugin"; \
|
||||
$(STRIPINST) $$plugin $(DESTDIR)$(plugindir)/$$plugin; \
|
||||
done
|
||||
|
||||
uninstall:
|
||||
-@for plugin in $(PLUGINS); do \
|
||||
echo " RM $(PLUGIN_DIR)/$$plugin"; \
|
||||
rm $(DESTDIR)$(prefix)$(PLUGIN_DIR)/$$plugin 2>/dev/null; \
|
||||
echo " RM $(DESTDIR)$(plugindir)/$$plugin"; \
|
||||
rm $(DESTDIR)$(plugindir)/$$plugin 2>/dev/null; \
|
||||
done
|
||||
-@rmdir $(DESTDIR)$(prefix)$(PLUGIN_DIR) 2>/dev/null
|
||||
-@rmdir $(DESTDIR)$(plugindir) 2>/dev/null
|
||||
|
||||
ifneq ($(MAKECMDGOALS),clean)
|
||||
-include $(DEPS)
|
||||
|
||||
@@ -27,14 +27,14 @@
|
||||
|
||||
static void save(void *UNUSED(arg))
|
||||
{
|
||||
_d("Saving system clock to RTC ...");
|
||||
run_interactive("/usr/sbin/alsactl store > /dev/null 2>&1", "Saving sound settings");
|
||||
_d("Saving sound settings ...");
|
||||
run_interactive("/usr/sbin/alsactl -g store", "Saving sound settings");
|
||||
}
|
||||
|
||||
static void restore(void *UNUSED(arg))
|
||||
{
|
||||
_d("Restoring system clock from RTC ...");
|
||||
run_interactive("/usr/sbin/alsactl restore > /dev/null 2>&1", "Restoring sound settings");
|
||||
_d("Restoring sound settings ...");
|
||||
run_interactive("/usr/sbin/alsactl -g restore", "Restoring sound settings");
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
|
||||
+28
-4
@@ -28,16 +28,35 @@
|
||||
#include "helpers.h"
|
||||
#include "plugin.h"
|
||||
|
||||
/*
|
||||
* Setup standard FHS 2.3 structure in /var, and
|
||||
* write runlevel to UTMP, needed by, e.g., printerdrake.
|
||||
*/
|
||||
static void setup(void *UNUSED(arg))
|
||||
{
|
||||
#ifdef RUNLEVEL
|
||||
struct utmp entry;
|
||||
#endif
|
||||
|
||||
_d("Setting up FHS structure in /var ...");
|
||||
makedir("/var/cache", 0755);
|
||||
makedir("/var/games", 0755);
|
||||
makedir("/var/lib", 0755);
|
||||
makedir("/var/lib/misc", 0755);
|
||||
makedir("/var/lib/alarm", 0755);
|
||||
makedir("/var/lock", 0755);
|
||||
makedir("/var/log", 0755);
|
||||
makedir("/var/mail", 0755);
|
||||
makedir("/var/opt", 0755);
|
||||
makedir("/var/run", 0755);
|
||||
makedir("/var/spool", 0755);
|
||||
makedir("/var/spool/cron", 0755);
|
||||
makedir("/var/tmp", 0755);
|
||||
makedir("/var/empty", 0755);
|
||||
|
||||
_d("Setting up necessary UTMP files ...");
|
||||
touch("/var/run/utmp");
|
||||
chown("/var/run/utmp", 0, getgroup("utmp"));
|
||||
chmod("/var/run/utmp", 0664);
|
||||
|
||||
#ifdef RUNLEVEL
|
||||
memset(&entry, 0, sizeof(struct utmp));
|
||||
@@ -51,16 +70,21 @@ static void setup(void *UNUSED(arg))
|
||||
#ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
|
||||
touch("/etc/network/run/ifstate");
|
||||
#else
|
||||
remove("/etc/network/run/ifstate");
|
||||
erase("/etc/network/run/ifstate");
|
||||
#endif
|
||||
|
||||
_d("Setting up misc files ...");
|
||||
mkdir("/var/run/sshd", 01755); /* OpenSSH */
|
||||
mkfifo("/dev/xconsole", 0640); /* sysklogd */
|
||||
makedir("/var/run/lldpd", 0755); /* Needed by lldpd */
|
||||
makedir("/var/run/pluto", 0755); /* Needed by Openswan */
|
||||
makedir("/var/run/quagga", 0755); /* Needed by Quagga */
|
||||
makedir("/var/log/quagga", 0755); /* Needed by Quagga */
|
||||
makedir("/var/run/sshd", 01755); /* OpenSSH */
|
||||
makefifo("/dev/xconsole", 0640); /* sysklogd */
|
||||
chown("/dev/xconsole", 0, getgroup("tty"));
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
.name = "bootmisc",
|
||||
.hook[HOOK_BASEFS_UP] = {
|
||||
.cb = setup
|
||||
},
|
||||
|
||||
+5
-4
@@ -27,12 +27,12 @@
|
||||
|
||||
static void setup(void *UNUSED(arg))
|
||||
{
|
||||
#ifdef USE_MESSAGE_BUS
|
||||
#ifdef HAVE_DBUS
|
||||
_d("Starting D-Bus ...");
|
||||
mkdir("/var/run/dbus", 0755);
|
||||
mkdir("/var/lock/subsys/messagebus", 0755);
|
||||
makedir("/var/run/dbus", 0755);
|
||||
makedir("/var/lock/subsys/messagebus", 0755);
|
||||
run("dbus-uuidgen --ensure");
|
||||
remove("/var/run/dbus/pid");
|
||||
erase("/var/run/dbus/pid");
|
||||
run_interactive("dbus-daemon --system", "Starting D-Bus");
|
||||
#endif
|
||||
}
|
||||
@@ -41,6 +41,7 @@ static plugin_t plugin = {
|
||||
.hook[HOOK_NETWORK_UP] = {
|
||||
.cb = setup
|
||||
},
|
||||
.depends = { "bootmisc", },
|
||||
};
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
|
||||
+4
-2
@@ -28,13 +28,15 @@
|
||||
static void save(void *UNUSED(arg))
|
||||
{
|
||||
_d("Saving system clock to RTC ...");
|
||||
run_interactive("/sbin/hwclock --systohc --utc", "Saving system time (UTC) to RTC");
|
||||
/* -w,--systohc, -u,--utc */
|
||||
run_interactive("/sbin/hwclock -w -u", "Saving system time (UTC) to RTC");
|
||||
}
|
||||
|
||||
static void restore(void *UNUSED(arg))
|
||||
{
|
||||
_d("Restoring system clock from RTC ...");
|
||||
run_interactive("/sbin/hwclock --hctosys --utc", "Restoring system clock (UTC) from RTC");
|
||||
/* -s,--hctosys, -u,--utc */
|
||||
run_interactive("/sbin/hwclock -s -u", "Restoring system clock (UTC) from RTC");
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
|
||||
+68
-41
@@ -1,7 +1,7 @@
|
||||
/* Optional /dev/initctl FIFO monitor
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -23,84 +23,113 @@
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h> /* O_RDONLY et al */
|
||||
#include <signal.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h> /* read() */
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
#include "plugin.h"
|
||||
#include "sig.h"
|
||||
#include "finit.h"
|
||||
|
||||
#define INIT_MAGIC 0x03091969
|
||||
#define INIT_CMD_RUNLVL 1
|
||||
static void parse(void *arg, int fd, int events);
|
||||
|
||||
struct init_request {
|
||||
int magic; /* Magic number */
|
||||
int cmd; /* What kind of request */
|
||||
int runlevel; /* Runlevel to change to */
|
||||
int sleeptime; /* Time between TERM and KILL */
|
||||
char data[368];
|
||||
static plugin_t plugin = {
|
||||
.io = {
|
||||
.cb = parse,
|
||||
.flags = PLUGIN_IO_READ,
|
||||
},
|
||||
};
|
||||
|
||||
#ifdef LISTEN_INITCTL
|
||||
static void fifo_open(void)
|
||||
{
|
||||
plugin.io.fd = open(FINIT_FIFO, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
|
||||
if (-1 == plugin.io.fd) {
|
||||
_e("Failed opening %s FIFO, error %d: %s", FINIT_FIFO, errno, strerror(errno));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
|
||||
* We should check if the fifo was recreated and reopen it.
|
||||
*/
|
||||
static void read_initctl(void *UNUSED(arg), int fd, int UNUSED(events))
|
||||
static void parse(void *UNUSED(arg), int fd, int UNUSED(events))
|
||||
{
|
||||
struct init_request request;
|
||||
struct init_request rq;
|
||||
|
||||
_d("Receiving request on %s...", FINIT_FIFO);
|
||||
_d("Receiving request on descriptor %d, from %s ...", fd, FINIT_FIFO);
|
||||
while (1) {
|
||||
ssize_t len = read(fd, &request, sizeof(request));
|
||||
ssize_t len = read(fd, &rq, sizeof(rq));
|
||||
|
||||
if (-1 == len) {
|
||||
_d("Error %d", errno);
|
||||
break; /* Probably EAGAIN */
|
||||
if (len <= 0) {
|
||||
if (-1 == len) {
|
||||
if (EINTR == errno)
|
||||
continue;
|
||||
|
||||
if (EAGAIN == errno)
|
||||
break;
|
||||
|
||||
_e("Failed reading initctl request, error %d: %s", errno, strerror(errno));
|
||||
}
|
||||
|
||||
_d("Nothing to do, bailing out.");
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
if (request.magic != INIT_MAGIC)
|
||||
continue;
|
||||
if (rq.magic != INIT_MAGIC || len != sizeof(rq)) {
|
||||
_e("Invalid initctl request.");
|
||||
break;
|
||||
}
|
||||
|
||||
_d("Magic OK...");
|
||||
if (request.cmd == INIT_CMD_RUNLVL) {
|
||||
switch (request.runlevel) {
|
||||
_d("Magic OK ...");
|
||||
if (rq.cmd == INIT_CMD_RUNLVL) {
|
||||
switch (rq.runlevel) {
|
||||
case '0':
|
||||
_d("Halting system (SIGUSR2)");
|
||||
do_shutdown(SIGUSR2);
|
||||
break;
|
||||
|
||||
case 's':
|
||||
case 'S':
|
||||
_d("Cannot enter bootstrap after boot ...");
|
||||
rq.runlevel = '1';
|
||||
/* Fall through to regular processing */
|
||||
|
||||
case '1'...'5':
|
||||
case '7'...'9':
|
||||
_d("Setting new runlevel %c", rq.runlevel);
|
||||
svc_runlevel(rq.runlevel - '0');
|
||||
break;
|
||||
|
||||
case '6':
|
||||
_d("Rebooting system (SIGUSR1)");
|
||||
do_shutdown(SIGUSR1);
|
||||
break;
|
||||
|
||||
default:
|
||||
_d("Unsupported runlevel: %d", request.runlevel);
|
||||
_d("Unsupported runlevel: %d", rq.runlevel);
|
||||
break;
|
||||
}
|
||||
} else if (rq.cmd == INIT_CMD_DEBUG) {
|
||||
debug = !debug;
|
||||
} else {
|
||||
_d("Unsupported cmd: %d", request.cmd);
|
||||
_d("Unsupported cmd: %d", rq.cmd);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
.io = {
|
||||
.cb = read_initctl,
|
||||
.flags = PLUGIN_IO_READ,
|
||||
},
|
||||
};
|
||||
close(fd);
|
||||
fifo_open();
|
||||
}
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
{
|
||||
_d("Setting up %s", FINIT_FIFO);
|
||||
mkfifo(FINIT_FIFO, 0600);
|
||||
|
||||
plugin.io.fd = open(FINIT_FIFO, O_RDONLY | O_NONBLOCK);
|
||||
if (-1 == plugin.io.fd) {
|
||||
_e("Failed opening %s FIFO, error %d: %s", FINIT_FIFO, errno, strerror(errno));
|
||||
return;
|
||||
}
|
||||
makefifo(FINIT_FIFO, 0600);
|
||||
|
||||
fifo_open();
|
||||
plugin_register(&plugin);
|
||||
}
|
||||
|
||||
@@ -109,8 +138,6 @@ PLUGIN_EXIT(plugin_exit)
|
||||
plugin_unregister(&plugin);
|
||||
}
|
||||
|
||||
#endif /* LISTEN_INITCTL */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
|
||||
@@ -59,7 +59,7 @@ static void setup(void *UNUSED(arg))
|
||||
touch("/etc/resolvconf/run/enable-updates");
|
||||
|
||||
chdir("/etc/resolvconf/run/interface");
|
||||
run_parts("/etc/resolvconf/update.d", "-i", NULL);
|
||||
run_parts("/etc/resolvconf/update.d", "-i");
|
||||
chdir("/");
|
||||
#endif /* USE_ETC_RESOLVCONF_RUN */
|
||||
}
|
||||
@@ -68,6 +68,7 @@ static plugin_t plugin = {
|
||||
.hook[HOOK_BASEFS_UP] = {
|
||||
.cb = setup
|
||||
},
|
||||
.depends = { "bootmisc", },
|
||||
};
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
|
||||
@@ -0,0 +1,87 @@
|
||||
/* Optional inetd plugin for time (rdate) protocol RFC 868
|
||||
*
|
||||
* Copyright (c) 2015 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <arpa/inet.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h> /* STDIN_FILENO */
|
||||
#include <sys/socket.h>
|
||||
|
||||
#include "plugin.h"
|
||||
|
||||
/* UNIX epoch starts midnight, 1st Jan, 1970 */
|
||||
#define EPOCH_OFFSET 2208988800ULL
|
||||
|
||||
/* Return number of seconds since midnight, 1st Jan, 1900 */
|
||||
static int rfc868(int type)
|
||||
{
|
||||
int sd = STDIN_FILENO;
|
||||
time_t now;
|
||||
struct sockaddr_storage sa;
|
||||
socklen_t sa_len = sizeof(sa);
|
||||
|
||||
if (SOCK_DGRAM == type) {
|
||||
int dummy;
|
||||
|
||||
/* Read empty datagram in UDP mode before sending reply. */
|
||||
if (-1 == recvfrom(sd, &dummy, sizeof(dummy), MSG_DONTWAIT, (struct sockaddr *)&sa, &sa_len))
|
||||
return -1; /* On error, close connection. */
|
||||
}
|
||||
|
||||
now = time(NULL);
|
||||
if ((time_t)-1 == now)
|
||||
return -1; /* On error, close connection. */
|
||||
|
||||
/* Account for UNIX epoch offset */
|
||||
now += EPOCH_OFFSET;
|
||||
|
||||
/* Convert to network byte order, not explicitly stated in RFC */
|
||||
now = htonl(now);
|
||||
|
||||
/* Send reply, ignore error, simply close connection. */
|
||||
return sendto(sd, &now, sizeof(now), MSG_DONTWAIT, (struct sockaddr *)&sa, sa_len);
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
.name = "time",
|
||||
.inetd = {
|
||||
.cmd = rfc868
|
||||
}
|
||||
};
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
{
|
||||
plugin_register(&plugin);
|
||||
}
|
||||
|
||||
PLUGIN_EXIT(plugin_exit)
|
||||
{
|
||||
plugin_unregister(&plugin);
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,94 @@
|
||||
/* Optional TTY Watcher, used to catch new TTYs that are discovered, e.g., USB
|
||||
*
|
||||
* Copyright (c) 2013 Mattias Walström <lazzer@gmail.com>
|
||||
* Copyright (c) 2013 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h> /* O_RDONLY et al */
|
||||
#include <unistd.h> /* read() */
|
||||
#include <sys/inotify.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
#include "plugin.h"
|
||||
#include "tty.h"
|
||||
|
||||
static void watcher(void *arg, int fd, int events);
|
||||
|
||||
static plugin_t plugin = {
|
||||
.io = {
|
||||
.cb = watcher,
|
||||
.flags = PLUGIN_IO_READ,
|
||||
},
|
||||
};
|
||||
|
||||
static void setup(void)
|
||||
{
|
||||
plugin.io.fd = inotify_init1(IN_NONBLOCK);
|
||||
if (-1 == plugin.io.fd || inotify_add_watch(plugin.io.fd, "/dev", IN_CREATE | IN_DELETE) < 0)
|
||||
_e("Failed starting TTY watcher: %s", strerror(errno));
|
||||
}
|
||||
|
||||
static void watcher(void *UNUSED(arg), int fd, int UNUSED(events))
|
||||
{
|
||||
int len = 0;
|
||||
char buf[EVENT_SIZE], name[42];
|
||||
tty_node_t *entry;
|
||||
struct inotify_event *notified = (struct inotify_event *)buf;
|
||||
|
||||
while ((len = read(fd, buf, sizeof(buf)))) {
|
||||
if (-1 == len) {
|
||||
if (errno == EINTR)
|
||||
continue;
|
||||
break;
|
||||
}
|
||||
|
||||
snprintf(name, sizeof(name), "/dev/%s", notified->name);
|
||||
entry = tty_find(name);
|
||||
if (entry && tty_enabled(&entry->data, runlevel)) {
|
||||
if (notified->mask & IN_CREATE)
|
||||
tty_start(&entry->data);
|
||||
else if (entry->data.pid)
|
||||
tty_stop(&entry->data);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
{
|
||||
setup();
|
||||
plugin_register(&plugin);
|
||||
}
|
||||
|
||||
PLUGIN_EXIT(plugin_exit)
|
||||
{
|
||||
plugin_unregister(&plugin);
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
+4
-2
@@ -26,16 +26,17 @@
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "libite/lite.h"
|
||||
#include "helpers.h"
|
||||
#include "plugin.h"
|
||||
|
||||
static void setup(void *UNUSED(arg))
|
||||
{
|
||||
#ifdef RANDOMSEED
|
||||
copyfile(RANDOMSEED, "/dev/urandom", 0);
|
||||
copyfile(RANDOMSEED, "/dev/urandom", 0, 0);
|
||||
unlink(RANDOMSEED);
|
||||
umask(077);
|
||||
copyfile("/dev/urandom", RANDOMSEED, 4096);
|
||||
copyfile("/dev/urandom", RANDOMSEED, 4096, 0);
|
||||
umask(0);
|
||||
#endif
|
||||
}
|
||||
@@ -44,6 +45,7 @@ static plugin_t plugin = {
|
||||
.hook[HOOK_BASEFS_UP] = {
|
||||
.cb = setup
|
||||
},
|
||||
.depends = { "bootmisc", }
|
||||
};
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
|
||||
@@ -36,7 +36,7 @@ static void setup(void *UNUSED(arg))
|
||||
#endif
|
||||
char line[LINE_SIZE];
|
||||
|
||||
makepath("/var/run/console");
|
||||
makedir("/var/run/console", 01777);
|
||||
snprintf(line, sizeof(line), "/var/run/console/%s", username);
|
||||
touch(line);
|
||||
|
||||
@@ -48,14 +48,15 @@ static void setup(void *UNUSED(arg))
|
||||
}
|
||||
#endif
|
||||
|
||||
mkdir("/tmp/.X11-unix", 01777);
|
||||
mkdir("/tmp/.ICE-unix", 01777);
|
||||
makedir("/tmp/.X11-unix", 01777);
|
||||
makedir("/tmp/.ICE-unix", 01777);
|
||||
}
|
||||
|
||||
static plugin_t plugin = {
|
||||
.hook[HOOK_NETWORK_UP] = {
|
||||
.cb = setup
|
||||
},
|
||||
.depends = { "bootmisc", }
|
||||
};
|
||||
|
||||
PLUGIN_INIT(plugin_init)
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Private header file for main finit daemon, not for plugins
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2013 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -25,13 +25,16 @@
|
||||
#ifndef FINIT_PRIVATE_H_
|
||||
#define FINIT_PRIVATE_H_
|
||||
|
||||
#include "svc.h"
|
||||
#include "plugin.h"
|
||||
|
||||
/* plugin.c */
|
||||
void run_hooks (hook_point_t no);
|
||||
void run_services (void);
|
||||
int load_plugins (char *path);
|
||||
void io_monitor (void);
|
||||
uev_ctx_t *ctx; /* Main loop context */
|
||||
|
||||
void svc_bootstrap (void);
|
||||
void svc_monitor (pid_t lost);
|
||||
|
||||
void plugin_run_hooks (hook_point_t no);
|
||||
int plugin_load_all (uev_ctx_t *ctx, char *path);
|
||||
|
||||
#endif /* FINIT_PRIVATE_H_ */
|
||||
|
||||
|
||||
@@ -0,0 +1,648 @@
|
||||
/* $OpenBSD: queue.h,v 1.38 2013/07/03 15:05:21 fgsch Exp $ */
|
||||
/* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1991, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)queue.h 8.5 (Berkeley) 8/20/94
|
||||
*/
|
||||
|
||||
#ifndef _SYS_QUEUE_H_
|
||||
#define _SYS_QUEUE_H_
|
||||
|
||||
/*
|
||||
* This file defines five types of data structures: singly-linked lists,
|
||||
* lists, simple queues, tail queues, and circular queues.
|
||||
*
|
||||
*
|
||||
* A singly-linked list is headed by a single forward pointer. The elements
|
||||
* are singly linked for minimum space and pointer manipulation overhead at
|
||||
* the expense of O(n) removal for arbitrary elements. New elements can be
|
||||
* added to the list after an existing element or at the head of the list.
|
||||
* Elements being removed from the head of the list should use the explicit
|
||||
* macro for this purpose for optimum efficiency. A singly-linked list may
|
||||
* only be traversed in the forward direction. Singly-linked lists are ideal
|
||||
* for applications with large datasets and few or no removals or for
|
||||
* implementing a LIFO queue.
|
||||
*
|
||||
* A list is headed by a single forward pointer (or an array of forward
|
||||
* pointers for a hash table header). The elements are doubly linked
|
||||
* so that an arbitrary element can be removed without a need to
|
||||
* traverse the list. New elements can be added to the list before
|
||||
* or after an existing element or at the head of the list. A list
|
||||
* may only be traversed in the forward direction.
|
||||
*
|
||||
* A simple queue is headed by a pair of pointers, one the head of the
|
||||
* list and the other to the tail of the list. The elements are singly
|
||||
* linked to save space, so elements can only be removed from the
|
||||
* head of the list. New elements can be added to the list before or after
|
||||
* an existing element, at the head of the list, or at the end of the
|
||||
* list. A simple queue may only be traversed in the forward direction.
|
||||
*
|
||||
* A tail queue is headed by a pair of pointers, one to the head of the
|
||||
* list and the other to the tail of the list. The elements are doubly
|
||||
* linked so that an arbitrary element can be removed without a need to
|
||||
* traverse the list. New elements can be added to the list before or
|
||||
* after an existing element, at the head of the list, or at the end of
|
||||
* the list. A tail queue may be traversed in either direction.
|
||||
*
|
||||
* A circle queue is headed by a pair of pointers, one to the head of the
|
||||
* list and the other to the tail of the list. The elements are doubly
|
||||
* linked so that an arbitrary element can be removed without a need to
|
||||
* traverse the list. New elements can be added to the list before or after
|
||||
* an existing element, at the head of the list, or at the end of the list.
|
||||
* A circle queue may be traversed in either direction, but has a more
|
||||
* complex end of list detection.
|
||||
*
|
||||
* For details on the use of these macros, see the queue(3) manual page.
|
||||
*/
|
||||
|
||||
#if defined(QUEUE_MACRO_DEBUG) || (defined(_KERNEL) && defined(DIAGNOSTIC))
|
||||
#define _Q_INVALIDATE(a) (a) = ((void *)-1)
|
||||
#else
|
||||
#define _Q_INVALIDATE(a)
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Singly-linked List definitions.
|
||||
*/
|
||||
#define SLIST_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *slh_first; /* first element */ \
|
||||
}
|
||||
|
||||
#define SLIST_HEAD_INITIALIZER(head) \
|
||||
{ NULL }
|
||||
|
||||
#define SLIST_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *sle_next; /* next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Singly-linked List access methods.
|
||||
*/
|
||||
#define SLIST_FIRST(head) ((head)->slh_first)
|
||||
#define SLIST_END(head) NULL
|
||||
#define SLIST_EMPTY(head) (SLIST_FIRST(head) == SLIST_END(head))
|
||||
#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
|
||||
|
||||
#define SLIST_FOREACH(var, head, field) \
|
||||
for((var) = SLIST_FIRST(head); \
|
||||
(var) != SLIST_END(head); \
|
||||
(var) = SLIST_NEXT(var, field))
|
||||
|
||||
#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = SLIST_FIRST(head); \
|
||||
(var) && ((tvar) = SLIST_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* Singly-linked List functions.
|
||||
*/
|
||||
#define SLIST_INIT(head) { \
|
||||
SLIST_FIRST(head) = SLIST_END(head); \
|
||||
}
|
||||
|
||||
#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
|
||||
(elm)->field.sle_next = (slistelm)->field.sle_next; \
|
||||
(slistelm)->field.sle_next = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define SLIST_INSERT_HEAD(head, elm, field) do { \
|
||||
(elm)->field.sle_next = (head)->slh_first; \
|
||||
(head)->slh_first = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define SLIST_REMOVE_AFTER(elm, field) do { \
|
||||
(elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \
|
||||
} while (0)
|
||||
|
||||
#define SLIST_REMOVE_HEAD(head, field) do { \
|
||||
(head)->slh_first = (head)->slh_first->field.sle_next; \
|
||||
} while (0)
|
||||
|
||||
#define SLIST_REMOVE(head, elm, type, field) do { \
|
||||
if ((head)->slh_first == (elm)) { \
|
||||
SLIST_REMOVE_HEAD((head), field); \
|
||||
} else { \
|
||||
struct type *curelm = (head)->slh_first; \
|
||||
\
|
||||
while (curelm->field.sle_next != (elm)) \
|
||||
curelm = curelm->field.sle_next; \
|
||||
curelm->field.sle_next = \
|
||||
curelm->field.sle_next->field.sle_next; \
|
||||
_Q_INVALIDATE((elm)->field.sle_next); \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* List definitions.
|
||||
*/
|
||||
#define LIST_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *lh_first; /* first element */ \
|
||||
}
|
||||
|
||||
#define LIST_HEAD_INITIALIZER(head) \
|
||||
{ NULL }
|
||||
|
||||
#define LIST_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *le_next; /* next element */ \
|
||||
struct type **le_prev; /* address of previous next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* List access methods
|
||||
*/
|
||||
#define LIST_FIRST(head) ((head)->lh_first)
|
||||
#define LIST_END(head) NULL
|
||||
#define LIST_EMPTY(head) (LIST_FIRST(head) == LIST_END(head))
|
||||
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
|
||||
|
||||
#define LIST_FOREACH(var, head, field) \
|
||||
for((var) = LIST_FIRST(head); \
|
||||
(var)!= LIST_END(head); \
|
||||
(var) = LIST_NEXT(var, field))
|
||||
|
||||
#define LIST_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = LIST_FIRST(head); \
|
||||
(var) && ((tvar) = LIST_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* List functions.
|
||||
*/
|
||||
#define LIST_INIT(head) do { \
|
||||
LIST_FIRST(head) = LIST_END(head); \
|
||||
} while (0)
|
||||
|
||||
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
|
||||
if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
|
||||
(listelm)->field.le_next->field.le_prev = \
|
||||
&(elm)->field.le_next; \
|
||||
(listelm)->field.le_next = (elm); \
|
||||
(elm)->field.le_prev = &(listelm)->field.le_next; \
|
||||
} while (0)
|
||||
|
||||
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
|
||||
(elm)->field.le_prev = (listelm)->field.le_prev; \
|
||||
(elm)->field.le_next = (listelm); \
|
||||
*(listelm)->field.le_prev = (elm); \
|
||||
(listelm)->field.le_prev = &(elm)->field.le_next; \
|
||||
} while (0)
|
||||
|
||||
#define LIST_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.le_next = (head)->lh_first) != NULL) \
|
||||
(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
|
||||
(head)->lh_first = (elm); \
|
||||
(elm)->field.le_prev = &(head)->lh_first; \
|
||||
} while (0)
|
||||
|
||||
#define LIST_REMOVE(elm, field) do { \
|
||||
if ((elm)->field.le_next != NULL) \
|
||||
(elm)->field.le_next->field.le_prev = \
|
||||
(elm)->field.le_prev; \
|
||||
*(elm)->field.le_prev = (elm)->field.le_next; \
|
||||
_Q_INVALIDATE((elm)->field.le_prev); \
|
||||
_Q_INVALIDATE((elm)->field.le_next); \
|
||||
} while (0)
|
||||
|
||||
#define LIST_REPLACE(elm, elm2, field) do { \
|
||||
if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \
|
||||
(elm2)->field.le_next->field.le_prev = \
|
||||
&(elm2)->field.le_next; \
|
||||
(elm2)->field.le_prev = (elm)->field.le_prev; \
|
||||
*(elm2)->field.le_prev = (elm2); \
|
||||
_Q_INVALIDATE((elm)->field.le_prev); \
|
||||
_Q_INVALIDATE((elm)->field.le_next); \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* Simple queue definitions.
|
||||
*/
|
||||
#define SIMPLEQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *sqh_first; /* first element */ \
|
||||
struct type **sqh_last; /* addr of last next element */ \
|
||||
}
|
||||
|
||||
#define SIMPLEQ_HEAD_INITIALIZER(head) \
|
||||
{ NULL, &(head).sqh_first }
|
||||
|
||||
#define SIMPLEQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *sqe_next; /* next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Simple queue access methods.
|
||||
*/
|
||||
#define SIMPLEQ_FIRST(head) ((head)->sqh_first)
|
||||
#define SIMPLEQ_END(head) NULL
|
||||
#define SIMPLEQ_EMPTY(head) (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
|
||||
#define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
|
||||
|
||||
#define SIMPLEQ_FOREACH(var, head, field) \
|
||||
for((var) = SIMPLEQ_FIRST(head); \
|
||||
(var) != SIMPLEQ_END(head); \
|
||||
(var) = SIMPLEQ_NEXT(var, field))
|
||||
|
||||
#define SIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = SIMPLEQ_FIRST(head); \
|
||||
(var) && ((tvar) = SIMPLEQ_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* Simple queue functions.
|
||||
*/
|
||||
#define SIMPLEQ_INIT(head) do { \
|
||||
(head)->sqh_first = NULL; \
|
||||
(head)->sqh_last = &(head)->sqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
|
||||
(head)->sqh_last = &(elm)->field.sqe_next; \
|
||||
(head)->sqh_first = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.sqe_next = NULL; \
|
||||
*(head)->sqh_last = (elm); \
|
||||
(head)->sqh_last = &(elm)->field.sqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
|
||||
(head)->sqh_last = &(elm)->field.sqe_next; \
|
||||
(listelm)->field.sqe_next = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define SIMPLEQ_REMOVE_HEAD(head, field) do { \
|
||||
if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
|
||||
(head)->sqh_last = &(head)->sqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define SIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
|
||||
if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \
|
||||
== NULL) \
|
||||
(head)->sqh_last = &(elm)->field.sqe_next; \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* XOR Simple queue definitions.
|
||||
*/
|
||||
#define XSIMPLEQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *sqx_first; /* first element */ \
|
||||
struct type **sqx_last; /* addr of last next element */ \
|
||||
unsigned long sqx_cookie; \
|
||||
}
|
||||
|
||||
#define XSIMPLEQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *sqx_next; /* next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* XOR Simple queue access methods.
|
||||
*/
|
||||
#define XSIMPLEQ_XOR(head, ptr) ((__typeof(ptr))((head)->sqx_cookie ^ \
|
||||
(unsigned long)(ptr)))
|
||||
#define XSIMPLEQ_FIRST(head) XSIMPLEQ_XOR(head, ((head)->sqx_first))
|
||||
#define XSIMPLEQ_END(head) NULL
|
||||
#define XSIMPLEQ_EMPTY(head) (XSIMPLEQ_FIRST(head) == XSIMPLEQ_END(head))
|
||||
#define XSIMPLEQ_NEXT(head, elm, field) XSIMPLEQ_XOR(head, ((elm)->field.sqx_next))
|
||||
|
||||
|
||||
#define XSIMPLEQ_FOREACH(var, head, field) \
|
||||
for ((var) = XSIMPLEQ_FIRST(head); \
|
||||
(var) != XSIMPLEQ_END(head); \
|
||||
(var) = XSIMPLEQ_NEXT(head, var, field))
|
||||
|
||||
#define XSIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = XSIMPLEQ_FIRST(head); \
|
||||
(var) && ((tvar) = XSIMPLEQ_NEXT(head, var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* XOR Simple queue functions.
|
||||
*/
|
||||
#define XSIMPLEQ_INIT(head) do { \
|
||||
arc4random_buf(&(head)->sqx_cookie, sizeof((head)->sqx_cookie)); \
|
||||
(head)->sqx_first = XSIMPLEQ_XOR(head, NULL); \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.sqx_next = (head)->sqx_first) == \
|
||||
XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
|
||||
(head)->sqx_first = XSIMPLEQ_XOR(head, (elm)); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.sqx_next = XSIMPLEQ_XOR(head, NULL); \
|
||||
*(XSIMPLEQ_XOR(head, (head)->sqx_last)) = XSIMPLEQ_XOR(head, (elm)); \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
if (((elm)->field.sqx_next = (listelm)->field.sqx_next) == \
|
||||
XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
|
||||
(listelm)->field.sqx_next = XSIMPLEQ_XOR(head, (elm)); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_REMOVE_HEAD(head, field) do { \
|
||||
if (((head)->sqx_first = XSIMPLEQ_XOR(head, \
|
||||
(head)->sqx_first)->field.sqx_next) == XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
|
||||
if (((elm)->field.sqx_next = XSIMPLEQ_XOR(head, \
|
||||
(elm)->field.sqx_next)->field.sqx_next) \
|
||||
== XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = \
|
||||
XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/*
|
||||
* Tail queue definitions.
|
||||
*/
|
||||
#define TAILQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *tqh_first; /* first element */ \
|
||||
struct type **tqh_last; /* addr of last next element */ \
|
||||
}
|
||||
|
||||
#define TAILQ_HEAD_INITIALIZER(head) \
|
||||
{ NULL, &(head).tqh_first }
|
||||
|
||||
#define TAILQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *tqe_next; /* next element */ \
|
||||
struct type **tqe_prev; /* address of previous next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* tail queue access methods
|
||||
*/
|
||||
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
||||
#define TAILQ_END(head) NULL
|
||||
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
|
||||
#define TAILQ_LAST(head, headname) \
|
||||
(*(((struct headname *)((head)->tqh_last))->tqh_last))
|
||||
/* XXX */
|
||||
#define TAILQ_PREV(elm, headname, field) \
|
||||
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
|
||||
#define TAILQ_EMPTY(head) \
|
||||
(TAILQ_FIRST(head) == TAILQ_END(head))
|
||||
|
||||
#define TAILQ_FOREACH(var, head, field) \
|
||||
for((var) = TAILQ_FIRST(head); \
|
||||
(var) != TAILQ_END(head); \
|
||||
(var) = TAILQ_NEXT(var, field))
|
||||
|
||||
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = TAILQ_FIRST(head); \
|
||||
(var) != TAILQ_END(head) && \
|
||||
((tvar) = TAILQ_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
|
||||
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
|
||||
for((var) = TAILQ_LAST(head, headname); \
|
||||
(var) != TAILQ_END(head); \
|
||||
(var) = TAILQ_PREV(var, headname, field))
|
||||
|
||||
#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
|
||||
for ((var) = TAILQ_LAST(head, headname); \
|
||||
(var) != TAILQ_END(head) && \
|
||||
((tvar) = TAILQ_PREV(var, headname, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* Tail queue functions.
|
||||
*/
|
||||
#define TAILQ_INIT(head) do { \
|
||||
(head)->tqh_first = NULL; \
|
||||
(head)->tqh_last = &(head)->tqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
|
||||
(head)->tqh_first->field.tqe_prev = \
|
||||
&(elm)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
(head)->tqh_first = (elm); \
|
||||
(elm)->field.tqe_prev = &(head)->tqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.tqe_next = NULL; \
|
||||
(elm)->field.tqe_prev = (head)->tqh_last; \
|
||||
*(head)->tqh_last = (elm); \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
|
||||
(elm)->field.tqe_next->field.tqe_prev = \
|
||||
&(elm)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
(listelm)->field.tqe_next = (elm); \
|
||||
(elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
||||
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
|
||||
(elm)->field.tqe_next = (listelm); \
|
||||
*(listelm)->field.tqe_prev = (elm); \
|
||||
(listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_REMOVE(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next) != NULL) \
|
||||
(elm)->field.tqe_next->field.tqe_prev = \
|
||||
(elm)->field.tqe_prev; \
|
||||
else \
|
||||
(head)->tqh_last = (elm)->field.tqe_prev; \
|
||||
*(elm)->field.tqe_prev = (elm)->field.tqe_next; \
|
||||
_Q_INVALIDATE((elm)->field.tqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_next); \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_REPLACE(head, elm, elm2, field) do { \
|
||||
if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \
|
||||
(elm2)->field.tqe_next->field.tqe_prev = \
|
||||
&(elm2)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm2)->field.tqe_next; \
|
||||
(elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
|
||||
*(elm2)->field.tqe_prev = (elm2); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_next); \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* Circular queue definitions.
|
||||
*/
|
||||
#define CIRCLEQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *cqh_first; /* first element */ \
|
||||
struct type *cqh_last; /* last element */ \
|
||||
}
|
||||
|
||||
#define CIRCLEQ_HEAD_INITIALIZER(head) \
|
||||
{ CIRCLEQ_END(&head), CIRCLEQ_END(&head) }
|
||||
|
||||
#define CIRCLEQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *cqe_next; /* next element */ \
|
||||
struct type *cqe_prev; /* previous element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Circular queue access methods
|
||||
*/
|
||||
#define CIRCLEQ_FIRST(head) ((head)->cqh_first)
|
||||
#define CIRCLEQ_LAST(head) ((head)->cqh_last)
|
||||
#define CIRCLEQ_END(head) ((void *)(head))
|
||||
#define CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next)
|
||||
#define CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev)
|
||||
#define CIRCLEQ_EMPTY(head) \
|
||||
(CIRCLEQ_FIRST(head) == CIRCLEQ_END(head))
|
||||
|
||||
#define CIRCLEQ_FOREACH(var, head, field) \
|
||||
for((var) = CIRCLEQ_FIRST(head); \
|
||||
(var) != CIRCLEQ_END(head); \
|
||||
(var) = CIRCLEQ_NEXT(var, field))
|
||||
|
||||
#define CIRCLEQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = CIRCLEQ_FIRST(head); \
|
||||
(var) != CIRCLEQ_END(head) && \
|
||||
((tvar) = CIRCLEQ_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
#define CIRCLEQ_FOREACH_REVERSE(var, head, field) \
|
||||
for((var) = CIRCLEQ_LAST(head); \
|
||||
(var) != CIRCLEQ_END(head); \
|
||||
(var) = CIRCLEQ_PREV(var, field))
|
||||
|
||||
#define CIRCLEQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
|
||||
for ((var) = CIRCLEQ_LAST(head, headname); \
|
||||
(var) != CIRCLEQ_END(head) && \
|
||||
((tvar) = CIRCLEQ_PREV(var, headname, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* Circular queue functions.
|
||||
*/
|
||||
#define CIRCLEQ_INIT(head) do { \
|
||||
(head)->cqh_first = CIRCLEQ_END(head); \
|
||||
(head)->cqh_last = CIRCLEQ_END(head); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
(elm)->field.cqe_next = (listelm)->field.cqe_next; \
|
||||
(elm)->field.cqe_prev = (listelm); \
|
||||
if ((listelm)->field.cqe_next == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_last = (elm); \
|
||||
else \
|
||||
(listelm)->field.cqe_next->field.cqe_prev = (elm); \
|
||||
(listelm)->field.cqe_next = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \
|
||||
(elm)->field.cqe_next = (listelm); \
|
||||
(elm)->field.cqe_prev = (listelm)->field.cqe_prev; \
|
||||
if ((listelm)->field.cqe_prev == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_first = (elm); \
|
||||
else \
|
||||
(listelm)->field.cqe_prev->field.cqe_next = (elm); \
|
||||
(listelm)->field.cqe_prev = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_HEAD(head, elm, field) do { \
|
||||
(elm)->field.cqe_next = (head)->cqh_first; \
|
||||
(elm)->field.cqe_prev = CIRCLEQ_END(head); \
|
||||
if ((head)->cqh_last == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_last = (elm); \
|
||||
else \
|
||||
(head)->cqh_first->field.cqe_prev = (elm); \
|
||||
(head)->cqh_first = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.cqe_next = CIRCLEQ_END(head); \
|
||||
(elm)->field.cqe_prev = (head)->cqh_last; \
|
||||
if ((head)->cqh_first == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_first = (elm); \
|
||||
else \
|
||||
(head)->cqh_last->field.cqe_next = (elm); \
|
||||
(head)->cqh_last = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_REMOVE(head, elm, field) do { \
|
||||
if ((elm)->field.cqe_next == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_last = (elm)->field.cqe_prev; \
|
||||
else \
|
||||
(elm)->field.cqe_next->field.cqe_prev = \
|
||||
(elm)->field.cqe_prev; \
|
||||
if ((elm)->field.cqe_prev == CIRCLEQ_END(head)) \
|
||||
(head)->cqh_first = (elm)->field.cqe_next; \
|
||||
else \
|
||||
(elm)->field.cqe_prev->field.cqe_next = \
|
||||
(elm)->field.cqe_next; \
|
||||
_Q_INVALIDATE((elm)->field.cqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.cqe_next); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_REPLACE(head, elm, elm2, field) do { \
|
||||
if (((elm2)->field.cqe_next = (elm)->field.cqe_next) == \
|
||||
CIRCLEQ_END(head)) \
|
||||
(head)->cqh_last = (elm2); \
|
||||
else \
|
||||
(elm2)->field.cqe_next->field.cqe_prev = (elm2); \
|
||||
if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) == \
|
||||
CIRCLEQ_END(head)) \
|
||||
(head)->cqh_first = (elm2); \
|
||||
else \
|
||||
(elm2)->field.cqe_prev->field.cqe_next = (elm2); \
|
||||
_Q_INVALIDATE((elm)->field.cqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.cqe_next); \
|
||||
} while (0)
|
||||
|
||||
#endif /* !_SYS_QUEUE_H_ */
|
||||
@@ -0,0 +1,37 @@
|
||||
/* reboot for finit
|
||||
*
|
||||
* Copyright (c) 2009-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
int main (void)
|
||||
{
|
||||
return !!kill(1, SIGINT);
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Signal management - Be conservative with what finit responds to!
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -47,22 +47,28 @@
|
||||
#include "private.h"
|
||||
#include "sig.h"
|
||||
|
||||
static int stopped = 0;
|
||||
static int stopped = 0;
|
||||
static uev_t sigint_watcher, sigpwr_watcher;
|
||||
static uev_t sigchld_watcher, sigsegv_watcher;
|
||||
static uev_t sigstop_watcher, sigtstp_watcher, sigcont_watcher;
|
||||
|
||||
|
||||
void do_shutdown (int sig)
|
||||
void do_shutdown(int sig)
|
||||
{
|
||||
touch(SYNC_SHUTDOWN);
|
||||
|
||||
if (sdown)
|
||||
run_interactive(sdown, "Calling shutdown hook: %s", sdown);
|
||||
|
||||
/* Call all shutdown hooks before rebooting... */
|
||||
plugin_run_hooks(HOOK_SHUTDOWN);
|
||||
|
||||
/* Here is where we signal watchdogd to do a forced reset for us */
|
||||
_d("Sending SIGTERM to all processes.");
|
||||
kill(-1, SIGTERM);
|
||||
|
||||
sleep(1);
|
||||
/* Call all shutdown hooks, this is the last call before rebooting... */
|
||||
run_hooks(HOOK_SHUTDOWN);
|
||||
/* Wait for WDT to timeout, should be no more than ~1 sec. */
|
||||
do_sleep(2);
|
||||
|
||||
_d("Sending SIGKILL to remaining processes.");
|
||||
kill(-1, SIGKILL);
|
||||
@@ -82,40 +88,46 @@ void do_shutdown (int sig)
|
||||
}
|
||||
|
||||
/*
|
||||
* Shut down on INT USR1 USR2
|
||||
* Shut down on INT PWR
|
||||
*/
|
||||
static void shutdown_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
|
||||
static void sigint_cb(uev_ctx_t *UNUSED(ctx), uev_t *w, void *UNUSED(arg), int UNUSED(events))
|
||||
{
|
||||
_d("Rebooting on signal %d from %s (PID %d)",
|
||||
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid);
|
||||
|
||||
do_shutdown(sig);
|
||||
do_shutdown(w->signo);
|
||||
}
|
||||
|
||||
/*
|
||||
* SIGCHLD: one of our children has died
|
||||
*/
|
||||
static void chld_handler(int UNUSED(sig), siginfo_t *UNUSED(info), void *UNUSED(ctx))
|
||||
static void sigchld_cb(uev_ctx_t *UNUSED(ctx), uev_t *UNUSED(w), void *UNUSED(arg), int UNUSED(events))
|
||||
{
|
||||
/* Do nothing, the svc_monitor() is the designated child reaper. */
|
||||
svc_monitor(waitpid(-1, NULL, WNOHANG));
|
||||
}
|
||||
|
||||
/*
|
||||
* SIGSTOP: Paused by user or netflash
|
||||
* SIGSEGV: mostly if service callbacks segfault
|
||||
*/
|
||||
static void sigstop_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
|
||||
static void sigsegv_cb(uev_ctx_t *UNUSED(ctx), uev_t *UNUSED(w), void *UNUSED(arg), int UNUSED(events))
|
||||
{
|
||||
_d("Received SIGSTOP(%d) from %s (PID %d)",
|
||||
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid);
|
||||
touch(SYNC_STOPPED);
|
||||
stopped ++;
|
||||
_e("PID %d caused a segfault!\n", getpid());
|
||||
exit(-1);
|
||||
}
|
||||
static void sigcont_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
|
||||
|
||||
/*
|
||||
* SIGSTOP/SIGTSTP: Paused by user or netflash
|
||||
*/
|
||||
static void sigstop_cb(uev_ctx_t *UNUSED(ctx), uev_t *UNUSED(w), void *UNUSED(arg), int UNUSED(events))
|
||||
{
|
||||
touch(SYNC_STOPPED);
|
||||
stopped++;
|
||||
}
|
||||
|
||||
/*
|
||||
* SIGCONT: Restart service monitor
|
||||
*/
|
||||
static void sigcont_cb(uev_ctx_t *UNUSED(ctx), uev_t *UNUSED(w), void *UNUSED(arg), int UNUSED(events))
|
||||
{
|
||||
_d("Received SIGCONT(%d) from %s (PID %d)",
|
||||
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid);
|
||||
stopped = 0;
|
||||
remove(SYNC_STOPPED);
|
||||
erase(SYNC_STOPPED);
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -129,6 +141,11 @@ int sig_stopped(void)
|
||||
/*
|
||||
* Inital signal setup - ignore everything but SIGCHLD until we're capable of responding
|
||||
*/
|
||||
static void chld_handler(int UNUSED(sig), siginfo_t *UNUSED(info), void *UNUSED(ctx))
|
||||
{
|
||||
/* NOP */
|
||||
}
|
||||
|
||||
void sig_init(void)
|
||||
{
|
||||
int i;
|
||||
@@ -140,26 +157,49 @@ void sig_init(void)
|
||||
SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
|
||||
}
|
||||
|
||||
/*
|
||||
* Unblock all signals blocked by finit when starting children
|
||||
*/
|
||||
void sig_unblock(void)
|
||||
{
|
||||
int i;
|
||||
sigset_t nmask;
|
||||
struct sigaction sa;
|
||||
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigaddset(&nmask, SIGINT);
|
||||
sigaddset(&nmask, SIGPWR);
|
||||
sigaddset(&nmask, SIGSTOP);
|
||||
sigaddset(&nmask, SIGTSTP);
|
||||
sigaddset(&nmask, SIGCONT);
|
||||
sigprocmask(SIG_UNBLOCK, &nmask, NULL);
|
||||
|
||||
/* Reset signal handlers that were set by the parent process */
|
||||
for (i = 1; i < NSIG; i++)
|
||||
DFLSIG(sa, i, 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Setup limited set of SysV compatible signals to respond to
|
||||
*/
|
||||
void sig_setup(void)
|
||||
void sig_setup(uev_ctx_t *ctx)
|
||||
{
|
||||
struct sigaction sa;
|
||||
|
||||
_d("Setup signals");
|
||||
|
||||
/* Cleanup any stale finit control files */
|
||||
remove(SYNC_SHUTDOWN);
|
||||
remove(SYNC_STOPPED);
|
||||
erase(SYNC_SHUTDOWN);
|
||||
erase(SYNC_STOPPED);
|
||||
|
||||
/* Standard SysV init calls ctrl-alt-delete handler */
|
||||
SETSIG(sa, SIGINT, shutdown_handler, 0);
|
||||
SETSIG(sa, SIGPWR, shutdown_handler, 0);
|
||||
uev_signal_init(ctx, &sigint_watcher, sigint_cb, NULL, SIGINT);
|
||||
uev_signal_init(ctx, &sigpwr_watcher, sigint_cb, NULL, SIGPWR);
|
||||
|
||||
/* Ignore SIGUSR1/2 for now, only BusyBox init implements them as reboot+halt. */
|
||||
// SETSIG2(sa, SIGUSR1, reopen_initctl, 0);
|
||||
// SETSIG2(sa, SIGUSR2, pwrdwn_handler, 0);
|
||||
// uev_signal_init(&ctx, &sigusr1_watcher, reopen_initctl_cb, NULL, SIGUSR1);
|
||||
// uev_signal_init(&ctx, &sigusr2_watcher, pwrdwn_cb, NULL, SIGUSR2);
|
||||
|
||||
/* Init must ignore SIGTERM. May otherwise get false SIGTERM in forked children! */
|
||||
IGNSIG(sa, SIGTERM, 0);
|
||||
@@ -170,10 +210,16 @@ void sig_setup(void)
|
||||
/* We don't have any /etc/inittab yet, reread finit.conf? */
|
||||
IGNSIG(sa, SIGHUP, 0);
|
||||
|
||||
/* After initial bootstrap of Finit we call the service monitor to reap children */
|
||||
uev_signal_init(ctx, &sigchld_watcher, sigchld_cb, NULL, SIGCHLD);
|
||||
|
||||
/* Trap SIGSEGV in case service callbacks crash */
|
||||
uev_signal_init(ctx, &sigsegv_watcher, sigsegv_cb, NULL, SIGSEGV);
|
||||
|
||||
/* Stopping init is a bit tricky. */
|
||||
SETSIG(sa, SIGSTOP, sigstop_handler, 0);
|
||||
SETSIG(sa, SIGTSTP, sigstop_handler, 0);
|
||||
SETSIG(sa, SIGCONT, sigcont_handler, 0);
|
||||
uev_signal_init(ctx, &sigstop_watcher, sigstop_cb, NULL, SIGSTOP);
|
||||
uev_signal_init(ctx, &sigtstp_watcher, sigstop_cb, NULL, SIGTSTP);
|
||||
uev_signal_init(ctx, &sigcont_watcher, sigcont_cb, NULL, SIGCONT);
|
||||
|
||||
/* Disable CTRL-ALT-DELETE from kernel, we handle shutdown gracefully with SIGINT, above */
|
||||
reboot(RB_DISABLE_CAD);
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Signal management - Be conservative with what finit responds to!
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2014 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -26,6 +26,7 @@
|
||||
#define FINIT_SIG_H_
|
||||
|
||||
#include <signal.h>
|
||||
#include "libuev/uev.h"
|
||||
|
||||
#define SYNC_SHUTDOWN "/var/lock/finit.shutdown"
|
||||
#define SYNC_STOPPED "/var/lock/finit.stopped"
|
||||
@@ -57,7 +58,8 @@
|
||||
void do_shutdown (int sig);
|
||||
int sig_stopped (void);
|
||||
void sig_init (void);
|
||||
void sig_setup (void);
|
||||
void sig_unblock (void);
|
||||
void sig_setup (uev_ctx_t *ctx);
|
||||
|
||||
#endif /* FINIT_SIG_H_ */
|
||||
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Generic API for managing svc_t structures
|
||||
/* Finit service monitor, task starter and generic API for managing svc_t
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2015 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -24,16 +24,22 @@
|
||||
|
||||
#include <string.h>
|
||||
#include <sys/wait.h>
|
||||
#include <utmp.h>
|
||||
#include <net/if.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
#include "private.h"
|
||||
#include "sig.h"
|
||||
#include "tty.h"
|
||||
#include "lite.h"
|
||||
#include "svc.h"
|
||||
#include "inetd.h"
|
||||
|
||||
/* The registered services are kept in shared memory for easy read-only access
|
||||
* by 3rd party APIs. Mostly because of the ability to, from the outside, query
|
||||
* liveness state of all daemons that should run. */
|
||||
static int was_stopped = 0;
|
||||
static int svc_counter = 0; /* Number of registered services to monitor. */
|
||||
static svc_t *services = NULL; /* List of registered services, in shared memory. */
|
||||
|
||||
@@ -46,7 +52,7 @@ static void __connect_shm(void)
|
||||
if (!services) {
|
||||
/* This should never happen, but if it does we're probably
|
||||
* knee-deep in more serious problems already... */
|
||||
_e("Failed setting up shared memory for service monitor.\n");
|
||||
_e("Failed allocating shared memory, error %d: %s", errno, strerror (errno));
|
||||
abort();
|
||||
}
|
||||
}
|
||||
@@ -63,10 +69,9 @@ svc_t *svc_new(void)
|
||||
svc_t *svc = NULL;
|
||||
|
||||
__connect_shm();
|
||||
if (svc_counter < MAX_NUM_SVC) {
|
||||
svc = &services[svc_counter];
|
||||
if (svc_counter >= 0 && svc_counter < MAX_NUM_SVC) {
|
||||
svc = &services[svc_counter++];
|
||||
memset(svc, 0, sizeof(*svc));
|
||||
svc->id = svc_counter++;
|
||||
} else {
|
||||
errno = ENOMEM;
|
||||
return NULL;
|
||||
@@ -76,38 +81,61 @@ svc_t *svc_new(void)
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_find_by_id - Find a service object by its logical ID#
|
||||
* @id: Logical ID#
|
||||
* svc_del - Delete a service object
|
||||
* @svc: Pointer to an &svc_t object
|
||||
*
|
||||
* Note, this function is not safe for public use. Should only be used
|
||||
* by this module until the storage of svc_t's has been refactored!
|
||||
*
|
||||
* Returns:
|
||||
* A pointer to an &svc_t object, or %NULL if not found.
|
||||
* Always succeeds, returning POSIX OK(0).
|
||||
*/
|
||||
svc_t *svc_find_by_id(int id)
|
||||
static int svc_del(svc_t *svc)
|
||||
{
|
||||
__connect_shm();
|
||||
if (id >= svc_counter)
|
||||
return NULL;
|
||||
if (svc_counter >= 0 && svc_counter < MAX_NUM_SVC) {
|
||||
svc = &services[--svc_counter];
|
||||
memset(svc, 0, sizeof(*svc));
|
||||
}
|
||||
|
||||
return &services[id];
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_find_by_name - Find a service object by its full path name
|
||||
* @name: Full path name, e.g., /sbin/syslogd
|
||||
* svc_iterator - Iterates over all registered services.
|
||||
* @first: Get first &svc_t object, or next until end.
|
||||
*
|
||||
* Returns:
|
||||
* The first &svc_t when @first is set, otherwise the next &svc_t until
|
||||
* the end when %NULL is returned.
|
||||
*/
|
||||
svc_t *svc_iterator(int first)
|
||||
{
|
||||
static int i = 0;
|
||||
|
||||
__connect_shm();
|
||||
if (first)
|
||||
i = 0;
|
||||
|
||||
if (i >= svc_counter)
|
||||
return NULL;
|
||||
|
||||
return &services[i++];
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_find - Find a service object by its full path name
|
||||
* @path: Full path name, e.g., /sbin/syslogd
|
||||
*
|
||||
* Returns:
|
||||
* A pointer to an &svc_t object, or %NULL if not found.
|
||||
*/
|
||||
svc_t *svc_find_by_name(char *name)
|
||||
svc_t *svc_find(char *path)
|
||||
{
|
||||
int i;
|
||||
svc_t *svc;
|
||||
|
||||
__connect_shm();
|
||||
for (i = 0; i < svc_counter; i++) {
|
||||
svc_t *svc = &services[i];
|
||||
|
||||
if (!strncmp(name, svc->cmd, strlen(svc->cmd))) {
|
||||
_d("Found a matching svc for %s", name);
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
if (!strncmp(path, svc->cmd, strlen(svc->cmd))) {
|
||||
_d("Found a matching svc for %s", path);
|
||||
return svc;
|
||||
}
|
||||
}
|
||||
@@ -116,57 +144,203 @@ svc_t *svc_find_by_name(char *name)
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_iterator - Iterates over all registered services.
|
||||
* @restart: Get first &svc_t object by setting @restart
|
||||
* svc_find_by_pid - Find an service object by its PID
|
||||
* @pid: Process ID to match
|
||||
*
|
||||
* Returns:
|
||||
* The first &svc_t when @restart is set, otherwise the next &svc_t until
|
||||
* the end when %NULL is returned.
|
||||
* A pointer to an &svc_t object, or %NULL if not found.
|
||||
*/
|
||||
svc_t *svc_iterator(int restart)
|
||||
svc_t *svc_find_by_pid(pid_t pid)
|
||||
{
|
||||
static int id = 0;
|
||||
svc_t *svc;
|
||||
|
||||
__connect_shm();
|
||||
if (restart)
|
||||
id = 0;
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
if (svc->pid == pid)
|
||||
return svc;
|
||||
}
|
||||
|
||||
if (id >= svc_counter)
|
||||
return NULL;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &services[id++];
|
||||
svc_t *svc_find_inetd(char *path, char *service, char *proto, char *port)
|
||||
{
|
||||
svc_t *svc;
|
||||
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
if (svc->type != SVC_CMD_INETD)
|
||||
continue;
|
||||
|
||||
if (strncmp(path, svc->cmd, strlen(svc->cmd)))
|
||||
continue;
|
||||
|
||||
if (inetd_match(&svc->inetd, service, proto, port)) {
|
||||
_d("Found a matching svc for %s", path);
|
||||
return svc;
|
||||
}
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_register - Register a non-backgrounding service to be monitored
|
||||
* svc_bootstrap - Start bootstrap services and tasks
|
||||
*
|
||||
* System startup, runlevel S, where only services, tasks and
|
||||
* run commands absolutely essential to bootstrap are located.
|
||||
*/
|
||||
void svc_bootstrap(void)
|
||||
{
|
||||
svc_t *svc;
|
||||
|
||||
_d("Bootstrapping all services in runlevel S from %s", FINIT_CONF);
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
svc_cmd_t cmd;
|
||||
|
||||
/* Inetd services cannot be part of bootstrap currently. */
|
||||
if (svc->type == SVC_CMD_INETD)
|
||||
continue;
|
||||
|
||||
cmd = svc_enabled(svc, 0, NULL);
|
||||
if (SVC_START == cmd || (SVC_RELOAD == cmd))
|
||||
svc_start(svc);
|
||||
}
|
||||
}
|
||||
|
||||
static int encode(int lvl)
|
||||
{
|
||||
if (!lvl)
|
||||
return 0;
|
||||
|
||||
return lvl + '0';
|
||||
}
|
||||
|
||||
static void utmp_save(int pre, int now)
|
||||
{
|
||||
struct utmp utent;
|
||||
|
||||
utent.ut_type = RUN_LVL;
|
||||
utent.ut_pid = (encode(pre) << 8) | (encode(now) & 0xFF);
|
||||
strlcpy(utent.ut_user, "runlevel", sizeof(utent.ut_user));
|
||||
|
||||
setutent();
|
||||
pututline(&utent);
|
||||
endutent();
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_runlevel - Change to a new runlevel
|
||||
* @newlevel: New runlevel to activate
|
||||
*
|
||||
* Stops all services not in @newlevel and starts, or lets continue to run,
|
||||
* those in @newlevel. Also updates @prevlevel and active @runlevel.
|
||||
*/
|
||||
void svc_runlevel(int newlevel)
|
||||
{
|
||||
svc_t *svc;
|
||||
|
||||
if (runlevel == newlevel)
|
||||
return;
|
||||
|
||||
if (newlevel < 0 || newlevel > 9)
|
||||
return;
|
||||
|
||||
prevlevel = runlevel;
|
||||
runlevel = newlevel;
|
||||
utmp_save(prevlevel, newlevel);
|
||||
|
||||
_d("Setting new runlevel --> %d <-- previous %d", runlevel, prevlevel);
|
||||
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
svc_cmd_t cmd;
|
||||
|
||||
/* Inetd services have slightly different semantics */
|
||||
if (svc->type == SVC_CMD_INETD) {
|
||||
if (!ISSET(svc->runlevels, runlevel))
|
||||
inetd_stop(&svc->inetd);
|
||||
else
|
||||
inetd_start(&svc->inetd);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
/* All other services consult their callback here */
|
||||
cmd = svc_enabled(svc, 0, NULL);
|
||||
if (svc->pid) {
|
||||
if (cmd == SVC_STOP)
|
||||
svc_stop(svc);
|
||||
else if (cmd == SVC_RELOAD)
|
||||
svc_reload(svc);
|
||||
} else {
|
||||
if (cmd == SVC_START)
|
||||
svc_start(svc);
|
||||
}
|
||||
}
|
||||
|
||||
if (0 == runlevel) {
|
||||
do_shutdown(SIGUSR2);
|
||||
return;
|
||||
}
|
||||
if (6 == runlevel) {
|
||||
do_shutdown(SIGUSR1);
|
||||
return;
|
||||
}
|
||||
|
||||
if (runlevel == 1)
|
||||
touch("/etc/nologin"); /* Disable login in single-user mode */
|
||||
else
|
||||
erase("/etc/nologin");
|
||||
|
||||
if (0 != prevlevel)
|
||||
tty_runlevel(runlevel);
|
||||
}
|
||||
|
||||
/**
|
||||
* svc_register - Register service, task or run commands
|
||||
* @type: %SVC_CMD_SERVICE(0), %SVC_CMD_TASK(1), %SVC_CMD_RUN(2)
|
||||
* @line: A complete command line with -- separated description text
|
||||
* @username: Optional username to run service as, or %NULL to run as root
|
||||
*
|
||||
* Actually, the @line can optionally start with a username, denoted by
|
||||
* an @ character. Like this:
|
||||
* This function is used to register commands to be run on different
|
||||
* system runlevels with optional username. The @type argument details
|
||||
* if it's service to bo monitored/respawned (daemon), a one-shot task
|
||||
* or a command that must run in sequence and not in parallell, like
|
||||
* service and task commands do.
|
||||
*
|
||||
* "service [@username] /path/to/daemon -- Description text"
|
||||
* The @line can optionally start with a username, denoted by an @
|
||||
* character. Like this:
|
||||
*
|
||||
* The [] brackets means the argument is optional. If the username is
|
||||
* left out the daemon is started as root.
|
||||
* "service @username [!0-6,S] /path/to/daemon arg -- Description text"
|
||||
* "task @username [!0-6,S] /path/to/task arg -- Description text"
|
||||
* "run @username [!0-6,S] /path/to/cmd arg -- Description text"
|
||||
* "inetd tcp/ssh nowait [2345] @root:root /usr/sbin/sshd -i -- Description"
|
||||
*
|
||||
* If the username is left out the command is started as root.
|
||||
* Inetd services, launched on demand (SVC_CMD_INETD)
|
||||
* The [] brackets are there to denote the allowed runlevels. Allowed
|
||||
* runlevels mimic that of SysV init with the addition of the 'S'
|
||||
* runlevel, which is only run once at startup. It can be seen as the
|
||||
* system bootstrap. If a task or run command is listed in more than the
|
||||
* [S] runlevel they will be called when changing runlevel.
|
||||
*
|
||||
* Returns:
|
||||
* POSIX OK(0) on success, or non-zero errno exit status on failure.
|
||||
*/
|
||||
int svc_register(char *line, char *username)
|
||||
int svc_register(int type, char *line, char *username)
|
||||
{
|
||||
int i = 0;
|
||||
char *cmd, *descr;
|
||||
int i = 0, forking = 0;
|
||||
char *service = NULL, *proto = NULL, *iface = NULL, *port = NULL;
|
||||
char *cmd, *desc, *runlevels = NULL;
|
||||
svc_t *svc;
|
||||
plugin_t *plugin = NULL;
|
||||
|
||||
if (!line) {
|
||||
_e("Invalid input argument.");
|
||||
return errno = EINVAL;
|
||||
}
|
||||
|
||||
descr = strstr(line, "-- ");
|
||||
if (descr)
|
||||
*descr = 0;
|
||||
desc = strstr(line, "-- ");
|
||||
if (desc)
|
||||
*desc = 0;
|
||||
|
||||
cmd = strtok(line, " ");
|
||||
if (!cmd) {
|
||||
@@ -175,8 +349,19 @@ int svc_register(char *line, char *username)
|
||||
return errno = ENOENT;
|
||||
}
|
||||
|
||||
if (cmd[0] == '@') { /* @username */
|
||||
username = &cmd[1];
|
||||
while (cmd) {
|
||||
if (cmd[0] != '/' && strchr(cmd, '/'))
|
||||
service = cmd; /* inetd service/proto */
|
||||
else if (!strncasecmp(cmd, "nowait", 6))
|
||||
forking = 1;
|
||||
else if (!strncasecmp(cmd, "wait", 4))
|
||||
forking = 0;
|
||||
else if (cmd[0] == '@') /* @username[:group] */
|
||||
username = &cmd[1];
|
||||
else if (cmd[0] == '[') /* [runlevels] */
|
||||
runlevels = &cmd[0];
|
||||
else
|
||||
break;
|
||||
|
||||
/* Check if valid command follows... */
|
||||
cmd = strtok(NULL, " ");
|
||||
@@ -184,22 +369,92 @@ int svc_register(char *line, char *username)
|
||||
goto incomplete;
|
||||
}
|
||||
|
||||
/* Example: inetd ssh@eth0:222/tcp */
|
||||
if (service) {
|
||||
proto = strchr(service, '/');
|
||||
if (!proto)
|
||||
goto incomplete;
|
||||
*proto++ = 0;
|
||||
|
||||
port = strchr(service, ':');
|
||||
if (port)
|
||||
*port++ = 0;
|
||||
|
||||
iface = strchr(service, '@');
|
||||
if (iface)
|
||||
*iface++ = 0;
|
||||
}
|
||||
|
||||
/* Find plugin that provides a callback for this inetd service */
|
||||
if (type == SVC_CMD_INETD && !strncasecmp(cmd, "internal", 8)) {
|
||||
plugin = plugin_find(service);
|
||||
if (!plugin || !plugin->inetd.cmd) {
|
||||
_e("Inetd service %s has no internal plugin, skipping.", service);
|
||||
return errno = ENOENT;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if known inetd, then add ifname for filtering only. */
|
||||
svc = svc_find_inetd(cmd, service, proto, port);
|
||||
if (svc)
|
||||
return inetd_allow(&svc->inetd, iface);
|
||||
|
||||
svc = svc_new();
|
||||
if (!svc) {
|
||||
_e("Out of memorym, cannot register service %s", cmd);
|
||||
_e("Out of memory, cannot register service %s", cmd);
|
||||
return errno = ENOMEM;
|
||||
}
|
||||
|
||||
if (descr)
|
||||
strlcpy(svc->descr, descr + 3, sizeof(svc->descr));
|
||||
if (username)
|
||||
svc->type = type;
|
||||
|
||||
if (desc)
|
||||
strlcpy(svc->desc, desc + 3, sizeof(svc->desc));
|
||||
|
||||
if (username) {
|
||||
char *ptr = strchr(username, ':');
|
||||
|
||||
if (ptr) {
|
||||
*ptr++ = 0;
|
||||
strlcpy(svc->group, ptr, sizeof(svc->group));
|
||||
}
|
||||
strlcpy(svc->username, username, sizeof(svc->username));
|
||||
strlcpy(svc->cmd, cmd, sizeof(svc->cmd));
|
||||
strlcpy(svc->args[i++], cmd, sizeof(svc->args[0]));
|
||||
}
|
||||
|
||||
if (svc->type == SVC_CMD_INETD) {
|
||||
int result;
|
||||
|
||||
result = inetd_new(&svc->inetd, service, proto, forking);
|
||||
result += inetd_init(&svc->inetd, svc, iface, port);
|
||||
|
||||
if (result) {
|
||||
_e("Failed registering new inetd service %s.", service);
|
||||
inetd_del(&svc->inetd);
|
||||
return svc_del(svc);
|
||||
}
|
||||
}
|
||||
|
||||
if (plugin) {
|
||||
/* Internal plugin provides this service */
|
||||
svc->inetd.cmd = plugin->inetd.cmd;
|
||||
} else {
|
||||
/* External program to call */
|
||||
strlcpy(svc->cmd, cmd, sizeof(svc->cmd));
|
||||
|
||||
while ((cmd = strtok(NULL, " ")))
|
||||
strlcpy(svc->args[i++], cmd, sizeof(svc->args[0]));
|
||||
svc->args[i][0] = 0;
|
||||
while ((cmd = strtok(NULL, " ")))
|
||||
strlcpy(svc->args[i++], cmd, sizeof(svc->args[0]));
|
||||
svc->args[i][0] = 0;
|
||||
|
||||
plugin = plugin_find(svc->cmd);
|
||||
if (plugin && plugin->svc.cb) {
|
||||
svc->cb = plugin->svc.cb;
|
||||
svc->dynamic = plugin->svc.dynamic;
|
||||
svc->dynamic_stop = plugin->svc.dynamic_stop;
|
||||
}
|
||||
}
|
||||
|
||||
svc->runlevels = parse_runlevels(runlevels);
|
||||
_d("Service %s runlevel 0x%2x", svc->cmd, svc->runlevels);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -207,8 +462,9 @@ int svc_register(char *line, char *username)
|
||||
|
||||
/**
|
||||
* svc_enabled - Should the service run?
|
||||
* @svc: Pointer to &svc_t object
|
||||
* @dynamic: Dynamic event, opaque flag passed to callback
|
||||
* @svc: Pointer to &svc_t object
|
||||
* @event: Dynamic event, opaque flag passed to callback
|
||||
* @arg: Event argument, used only by external service plugins.
|
||||
*
|
||||
* This method calls an associated service callback, if registered by a
|
||||
* plugin, and returns the &svc_cmd_t status. If no plugin is registered
|
||||
@@ -218,19 +474,53 @@ int svc_register(char *line, char *username)
|
||||
* Returns:
|
||||
* Either one of %SVC_START, %SVC_STOP, %SVC_RELOAD.
|
||||
*/
|
||||
svc_cmd_t svc_enabled(svc_t *svc, int dynamic)
|
||||
svc_cmd_t svc_enabled(svc_t *svc, int event, void *arg)
|
||||
{
|
||||
if (!svc) {
|
||||
errno = EINVAL;
|
||||
return SVC_STOP;
|
||||
}
|
||||
|
||||
if (!svc->plugin) {
|
||||
/* Unknown service, default to enabled. */
|
||||
return SVC_START;
|
||||
if (!ISSET(svc->runlevels, runlevel))
|
||||
return SVC_STOP;
|
||||
|
||||
/* Is there a service plugin registered? */
|
||||
if (svc->cb) {
|
||||
int status;
|
||||
pid_t pid;
|
||||
|
||||
/* Let callback run in separate process so it doesn't crash PID 1 */
|
||||
pid = fork();
|
||||
if (-1 == pid) {
|
||||
_pe("Failed in %s callback", svc->cmd);
|
||||
return SVC_STOP;
|
||||
}
|
||||
|
||||
if (!pid) {
|
||||
status = svc->cb(svc, event, arg);
|
||||
exit(status);
|
||||
}
|
||||
|
||||
if (waitpid(pid, &status, 0) == -1) {
|
||||
_pe("Failed reading status from %s callback", svc->cmd);
|
||||
return SVC_STOP;
|
||||
}
|
||||
|
||||
/* Callback normally exits here. */
|
||||
if (WIFEXITED(status))
|
||||
return WEXITSTATUS(status);
|
||||
|
||||
/* Check for SEGFAULT or other error ... */
|
||||
if (WCOREDUMP(status))
|
||||
_e("Callback to %s crashed!\n", svc->cmd);
|
||||
else
|
||||
_e("Callback to %s did not exit normally!\n", svc->cmd);
|
||||
|
||||
return SVC_STOP;
|
||||
}
|
||||
|
||||
return svc->plugin->cb(svc, dynamic);
|
||||
/* No service plugin, default to start, since listed in finit.conf */
|
||||
return SVC_START;
|
||||
}
|
||||
|
||||
static int is_norespawn(void)
|
||||
@@ -240,67 +530,165 @@ static int is_norespawn(void)
|
||||
fexist("/tmp/norespawn");
|
||||
}
|
||||
|
||||
void svc_monitor(void)
|
||||
static void restart_any_lost_procs(void)
|
||||
{
|
||||
pid_t lost;
|
||||
svc_t *svc;
|
||||
|
||||
lost = waitpid(-1, NULL, WNOHANG);
|
||||
if (lost < 1)
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
if (svc->pid > 0 && pid_alive(svc->pid))
|
||||
continue;
|
||||
|
||||
/* Only restart lost daemons, not task/run/inetd services */
|
||||
if (SVC_CMD_SERVICE != svc->type) {
|
||||
svc->pid = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
svc_start(svc);
|
||||
}
|
||||
}
|
||||
|
||||
void svc_monitor(pid_t lost)
|
||||
{
|
||||
svc_t *svc;
|
||||
|
||||
if (was_stopped && !is_norespawn()) {
|
||||
was_stopped = 0;
|
||||
restart_any_lost_procs();
|
||||
return;
|
||||
}
|
||||
|
||||
if (fexist(SYNC_SHUTDOWN) || lost <= 1)
|
||||
return;
|
||||
|
||||
/* Power user at the console, don't respawn tasks. */
|
||||
if (is_norespawn())
|
||||
if (is_norespawn()) {
|
||||
was_stopped = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
if (tty_respawn(lost))
|
||||
return;
|
||||
|
||||
if (inetd_respawn(lost))
|
||||
return;
|
||||
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
char *name = basename(svc->cmd);
|
||||
|
||||
if (lost != svc->pid)
|
||||
continue;
|
||||
|
||||
_d("Ouch, lost pid %d - %s(%d)", lost, name, svc->pid);
|
||||
if (SVC_CMD_SERVICE != svc->type) {
|
||||
svc->pid = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
_d("Ouch, lost pid %d - %s(%d)", lost, basename(svc->cmd), svc->pid);
|
||||
|
||||
/* No longer running, update books. */
|
||||
svc->pid = 0;
|
||||
|
||||
if (sig_stopped()) {
|
||||
_e("Stopped, not respawning killed processes.");
|
||||
break;
|
||||
}
|
||||
|
||||
/* Cleanup any lingering or semi-restarting tasks before respawning */
|
||||
_d("Sending SIGTERM to service group %s", name);
|
||||
kill_procname(name, SIGTERM);
|
||||
_d("Sending SIGTERM to service group %s", basename(svc->cmd));
|
||||
procname_kill(basename(svc->cmd), SIGTERM);
|
||||
|
||||
/* Restarting lost service. */
|
||||
if (svc_enabled(svc, 0))
|
||||
if (svc_enabled(svc, 0, NULL)) {
|
||||
svc->restart_counter++;
|
||||
svc_start(svc);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Remember: svc_enabled() must be called before calling svc_start() */
|
||||
int svc_start(svc_t *svc)
|
||||
{
|
||||
int respawn = svc->pid != 0;
|
||||
int respawn, sd = 0;
|
||||
char ifname[IF_NAMESIZE] = "UNKNOWN";
|
||||
pid_t pid;
|
||||
char *args[MAX_NUM_SVC_ARGS];
|
||||
sigset_t nmask, omask;
|
||||
|
||||
if (!svc)
|
||||
return 0;
|
||||
respawn = svc->pid != 0;
|
||||
|
||||
/* Don't try and start service if it doesn't exist. */
|
||||
if (!fexist(svc->cmd) && !svc->inetd.cmd) {
|
||||
char msg[80];
|
||||
|
||||
snprintf(msg, sizeof(msg), "Service %s does not exist!", svc->cmd);
|
||||
print_desc("", msg);
|
||||
print_result(1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Ignore if finit is SIGSTOP'ed */
|
||||
if (is_norespawn())
|
||||
return 0;
|
||||
|
||||
if (!respawn)
|
||||
print_descr("Starting ", svc->descr);
|
||||
if (SVC_CMD_INETD == svc->type) {
|
||||
sd = svc->inetd.watcher.fd;
|
||||
|
||||
if (svc->inetd.type == SOCK_STREAM) {
|
||||
/* Open new client socket from server socket */
|
||||
sd = accept(sd, NULL, NULL);
|
||||
if (sd < 0) {
|
||||
FLOG_PERROR("Failed accepting inetd service %d/tcp", svc->inetd.port);
|
||||
return 0;
|
||||
}
|
||||
|
||||
_d("New client socket %d accepted for inetd service %d/tcp", sd, svc->inetd.port);
|
||||
|
||||
/* Find ifname by means of getsockname() and getifaddrs() */
|
||||
inetd_stream_peek(sd, ifname);
|
||||
} else { /* SOCK_DGRAM */
|
||||
/* Find ifname by means of IP_PKTINFO sockopt --> ifindex + if_indextoname() */
|
||||
inetd_dgram_peek(sd, ifname);
|
||||
}
|
||||
|
||||
if (!inetd_is_allowed(&svc->inetd, ifname)) {
|
||||
FLOG_INFO("Service %s on port %d not allowed from interface %s.",
|
||||
svc->inetd.name, svc->inetd.port, ifname);
|
||||
if (svc->inetd.type == SOCK_STREAM)
|
||||
close(sd);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
FLOG_INFO("Starting inetd service %s for requst from iface %s ...", svc->inetd.name, ifname);
|
||||
}
|
||||
else if (SVC_CMD_SERVICE != svc->type)
|
||||
print_desc("", svc->desc);
|
||||
else if (!respawn)
|
||||
print_desc("Starting ", svc->desc);
|
||||
|
||||
/* Block sigchild while forking. */
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigprocmask(SIG_BLOCK, &nmask, &omask);
|
||||
|
||||
pid = fork();
|
||||
sigprocmask(SIG_SETMASK, &omask, NULL);
|
||||
if (pid == 0) {
|
||||
int i = 0;
|
||||
int status;
|
||||
int uid = getuser(svc->username);
|
||||
struct sigaction sa;
|
||||
char *args[MAX_NUM_SVC_ARGS];
|
||||
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigprocmask(SIG_UNBLOCK, &nmask, NULL);
|
||||
|
||||
/* Reset signal handlers that were set by the parent process */
|
||||
for (i = 1; i < NSIG; i++)
|
||||
for (i = 1; i < NSIG; i++)
|
||||
DFLSIG(sa, i, 0);
|
||||
|
||||
/* Set desired user */
|
||||
@@ -308,29 +696,62 @@ int svc_start(svc_t *svc)
|
||||
setuid(uid);
|
||||
|
||||
/* Serve copy of args to process in case it modifies them. */
|
||||
for (i = 0; svc->args[i][0] != 0 && i < MAX_NUM_SVC_ARGS; i++)
|
||||
for (i = 0; i < (MAX_NUM_SVC_ARGS - 1) && svc->args[i][0] != 0; i++)
|
||||
args[i] = svc->args[i];
|
||||
args[i] = NULL;
|
||||
|
||||
if (debug) {
|
||||
int fd = open (CONSOLE, O_WRONLY | O_APPEND);
|
||||
/* Redirect inetd socket to stdin for service */
|
||||
if (SVC_CMD_INETD == svc->type) {
|
||||
/* sd set previously */
|
||||
dup2(sd, STDIN_FILENO);
|
||||
close(sd);
|
||||
dup2(STDIN_FILENO, STDOUT_FILENO);
|
||||
dup2(STDIN_FILENO, STDERR_FILENO);
|
||||
} else if (debug) {
|
||||
int fd;
|
||||
char buf[CMD_SIZE] = "";
|
||||
|
||||
fd = open(CONSOLE, O_WRONLY | O_APPEND);
|
||||
if (-1 != fd) {
|
||||
dup2(STDOUT_FILENO, fd);
|
||||
dup2(STDERR_FILENO, fd);
|
||||
dup2(fd, STDOUT_FILENO);
|
||||
dup2(fd, STDERR_FILENO);
|
||||
close(fd);
|
||||
}
|
||||
|
||||
_e("%starting %s ", respawn ? "Res" : "S", svc->cmd);
|
||||
for (i = 0; args[i] && i < MAX_NUM_SVC_ARGS; i++)
|
||||
_e("%s ", args[i]);
|
||||
_e("");
|
||||
for (i = 0; i < MAX_NUM_SVC_ARGS && args[i]; i++) {
|
||||
char arg[MAX_ARG_LEN];
|
||||
|
||||
snprintf(arg, sizeof(arg), "%s ", args[i]);
|
||||
if (strlen(arg) < (sizeof(buf) - strlen(buf)))
|
||||
strcat(buf, arg);
|
||||
}
|
||||
_e("%starting %s: %s", respawn ? "Res" : "S", svc->cmd, buf);
|
||||
}
|
||||
|
||||
execvp(svc->cmd, args);
|
||||
exit(0);
|
||||
if (svc->inetd.cmd)
|
||||
status = svc->inetd.cmd(svc->inetd.type);
|
||||
else
|
||||
status = execv(svc->cmd, args); /* XXX: Maybe use execve() to be able to launch scripts? */
|
||||
|
||||
if (SVC_CMD_INETD == svc->type) {
|
||||
if (svc->inetd.type == SOCK_STREAM) {
|
||||
close(STDIN_FILENO);
|
||||
close(STDOUT_FILENO);
|
||||
close(STDERR_FILENO);
|
||||
}
|
||||
}
|
||||
|
||||
exit(status);
|
||||
}
|
||||
svc->pid = pid;
|
||||
|
||||
if (!respawn)
|
||||
if (SVC_CMD_INETD == svc->type) {
|
||||
if (svc->inetd.type == SOCK_STREAM)
|
||||
close(sd);
|
||||
}
|
||||
else if (SVC_CMD_RUN == svc->type)
|
||||
print_result(WEXITSTATUS(complete(svc->cmd, pid)));
|
||||
else if (!respawn)
|
||||
print_result(svc->pid > 1 ? 0 : 1);
|
||||
|
||||
return 0;
|
||||
@@ -338,9 +759,9 @@ int svc_start(svc_t *svc)
|
||||
|
||||
int svc_start_by_name(char *name)
|
||||
{
|
||||
svc_t *svc = svc_find_by_name(name);
|
||||
svc_t *svc = svc_find(name);
|
||||
|
||||
if (svc && svc_enabled(svc, 0))
|
||||
if (svc && svc_enabled(svc, 0, NULL))
|
||||
return svc_start(svc);
|
||||
|
||||
return 1;
|
||||
@@ -356,22 +777,33 @@ int svc_stop(svc_t *svc)
|
||||
}
|
||||
|
||||
if (svc->pid <= 1) {
|
||||
_d("Bad PID %d for %s, SIGTERM", svc->pid, svc->descr);
|
||||
_d("Bad PID %d for %s, SIGTERM", svc->pid, svc->desc);
|
||||
svc->pid = 0;
|
||||
svc->restart_counter = 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
print_descr("Stopping ", svc->descr);
|
||||
_d("Sending SIGTERM to pid:%d name:'%s'", svc->pid, get_pidname(svc->pid, NULL, 0));
|
||||
if (SVC_CMD_SERVICE != svc->type)
|
||||
return 0;
|
||||
|
||||
if (runlevel != 1)
|
||||
print_desc("Stopping ", svc->desc);
|
||||
_d("Sending SIGTERM to pid:%d name:'%s'", svc->pid, pid_get_name(svc->pid, NULL, 0));
|
||||
res = kill(svc->pid, SIGTERM);
|
||||
print_result(res);
|
||||
if (runlevel != 1)
|
||||
print_result(res);
|
||||
svc->pid = 0;
|
||||
svc->restart_counter = 0;
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
int svc_reload(svc_t *svc)
|
||||
{
|
||||
/* Ignore if finit is SIGSTOP'ed */
|
||||
if (is_norespawn())
|
||||
return 0;
|
||||
|
||||
if (!svc) {
|
||||
_e("Failed, no svc pointer.");
|
||||
return 1;
|
||||
@@ -387,26 +819,8 @@ int svc_reload(svc_t *svc)
|
||||
return kill(svc->pid, SIGHUP);
|
||||
}
|
||||
|
||||
void svc_start_all(void)
|
||||
{
|
||||
svc_t *svc;
|
||||
svc_cmd_t cmd;
|
||||
|
||||
for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
|
||||
cmd = svc_enabled(svc, 0);
|
||||
if (cmd == SVC_START || (cmd == SVC_RELOAD && svc->pid == 0))
|
||||
svc_start(svc);
|
||||
else if (cmd == SVC_RELOAD)
|
||||
svc_reload(svc);
|
||||
}
|
||||
|
||||
/* XXX: Hook point for plugins. */
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* compile-command: "gcc -g -DUNITTEST -o unittest svc.c"
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* Generic API for managing svc_t structures
|
||||
/* Finit service monitor and generic API for managing svc_t structures
|
||||
*
|
||||
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
|
||||
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
|
||||
* Copyright (c) 2008-2015 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
@@ -27,11 +27,13 @@
|
||||
|
||||
#include <errno.h>
|
||||
#include <string.h> /* strerror() */
|
||||
#include <sys/ipc.h> /* IPC_CREAT */
|
||||
#include <sys/shm.h> /* shmat() */
|
||||
#include <sys/types.h> /* pid_t */
|
||||
|
||||
#include "finit.h"
|
||||
#include "plugin.h"
|
||||
#include "inetd.h"
|
||||
#include "queue.h" /* BSD sys/queue.h API */
|
||||
#include "libuev/uev.h"
|
||||
|
||||
typedef enum {
|
||||
SVC_STOP = 0, /* Disabled */
|
||||
@@ -39,6 +41,13 @@ typedef enum {
|
||||
SVC_RELOAD /* Enabled, needs restart */
|
||||
} svc_cmd_t;
|
||||
|
||||
typedef enum {
|
||||
SVC_CMD_SERVICE = 0, /* Monitored, will be respawned */
|
||||
SVC_CMD_TASK, /* One-shot, runs in parallell */
|
||||
SVC_CMD_RUN, /* Like task, but wait for completion */
|
||||
SVC_CMD_INETD /* Classic inetd service */
|
||||
} svc_type_t;
|
||||
|
||||
#define FINIT_SHM_ID 0x494E4954 /* "INIT", see ascii(7) */
|
||||
#define MAX_ARG_LEN 64
|
||||
#define MAX_STR_LEN 64
|
||||
@@ -51,16 +60,35 @@ typedef enum {
|
||||
* of issuing an initctl call. E.g.
|
||||
* initctl <stop|start|restart> service */
|
||||
typedef struct svc {
|
||||
/* Private */
|
||||
int id; /* Service ID#, set by svc_new() */
|
||||
pid_t pid;
|
||||
svc_type_t type;
|
||||
int reload;
|
||||
int runlevels;
|
||||
|
||||
/* Incremented for each restart by service monitor. */
|
||||
unsigned int restart_counter;
|
||||
|
||||
/* For inetd services */
|
||||
inetd_t inetd;
|
||||
|
||||
/* Identity */
|
||||
char username[MAX_USER_LEN];
|
||||
char group[MAX_USER_LEN];
|
||||
|
||||
/* Command, arguments and service description */
|
||||
char cmd[MAX_ARG_LEN];
|
||||
char args[MAX_NUM_SVC_ARGS][MAX_ARG_LEN];
|
||||
char descr[MAX_STR_LEN];
|
||||
char username[MAX_USER_LEN];
|
||||
/* Public */
|
||||
int delayed_reload; /* For external service plugin. */
|
||||
plugin_svc_t *plugin;
|
||||
char desc[MAX_STR_LEN];
|
||||
|
||||
/* For external plugins. If @cb is set a plugin is loaded.
|
||||
* @dynamic: Set by plugins that want dynamic events.
|
||||
* @dynamic_stop: Set by plugins that allow dyn. events to stop it as well.
|
||||
* @private: Can be used freely by plugin, e.g., to store "states".
|
||||
*/
|
||||
int dynamic;
|
||||
int dynamic_stop;
|
||||
int private;
|
||||
svc_cmd_t (*cb)(struct svc *svc, int event, void *event_arg);
|
||||
} svc_t;
|
||||
|
||||
typedef struct svc_map svc_map_t;
|
||||
@@ -68,44 +96,32 @@ typedef struct svc_map svc_map_t;
|
||||
/* Put services array in shm */
|
||||
static inline svc_t *finit_svc_connect(void)
|
||||
{
|
||||
const long ID = FINIT_SHM_ID;
|
||||
static void *ptr = (void *)-1;
|
||||
|
||||
if ((void *)-1 == ptr) {
|
||||
ptr = shmat (shmget (ID, sizeof(svc_t) * MAX_NUM_SVC, 0600 | IPC_CREAT), NULL, 0);
|
||||
if ((void *)-1 == ptr) {
|
||||
_d("Failed allocating shared memory, error %d: %s", errno, strerror (errno));
|
||||
ptr = shmat(shmget(FINIT_SHM_ID, sizeof(svc_t) * MAX_NUM_SVC,
|
||||
0600 | IPC_CREAT), NULL, 0);
|
||||
if ((void *)-1 == ptr)
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return (svc_t *)ptr;
|
||||
}
|
||||
|
||||
static inline int svc_id(svc_t *svc)
|
||||
{
|
||||
if (!svc) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
svc_t *svc_new (void);
|
||||
svc_t *svc_find (char *path);
|
||||
svc_t *svc_find_by_pid (pid_t pid);
|
||||
svc_t *svc_find_inetd (char *path, char *service, char *proto, char *port);
|
||||
svc_t *svc_iterator (int first);
|
||||
void svc_runlevel (int newlevel);
|
||||
|
||||
return svc->id;
|
||||
}
|
||||
|
||||
svc_t *svc_new (void);
|
||||
svc_t *svc_find_by_id (int id);
|
||||
svc_t *svc_find_by_name (char *name);
|
||||
svc_t *svc_iterator (int restart);
|
||||
|
||||
int svc_register (char *line, char *username);
|
||||
int svc_id_by_name (char *name);
|
||||
svc_cmd_t svc_enabled (svc_t *svc, int dynamic);
|
||||
int svc_start (svc_t *svc);
|
||||
int svc_start_by_name (char *name);
|
||||
int svc_stop (svc_t *svc);
|
||||
int svc_reload (svc_t *svc);
|
||||
void svc_start_all (void);
|
||||
void svc_monitor (void);
|
||||
int svc_register (int type, char *line, char *username);
|
||||
int svc_id_by_name (char *name);
|
||||
svc_cmd_t svc_enabled (svc_t *svc, int event, void *arg);
|
||||
int svc_start (svc_t *svc);
|
||||
int svc_start_by_name (char *name);
|
||||
int svc_stop (svc_t *svc);
|
||||
int svc_reload (svc_t *svc);
|
||||
|
||||
#endif /* FINIT_SVC_H_ */
|
||||
|
||||
|
||||
@@ -0,0 +1,228 @@
|
||||
/* Finit TTY handling
|
||||
*
|
||||
* Copyright (c) 2013 Mattias Walström <lazzer@gmail.com>
|
||||
* Copyright (c) 2013 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <signal.h>
|
||||
#include <sys/wait.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
#include "lite.h"
|
||||
#include "tty.h"
|
||||
|
||||
LIST_HEAD(, tty_node) tty_list = LIST_HEAD_INITIALIZER();
|
||||
|
||||
|
||||
/* tty [!1-9,S] <DEV> [BAUD[,BAUD,...]] [TERM] */
|
||||
int tty_register(char *line)
|
||||
{
|
||||
tty_node_t *entry;
|
||||
int insert = 0, baud = 0;
|
||||
char *cmd, *dev;
|
||||
char *runlevels = NULL, *term = NULL;
|
||||
|
||||
if (!line) {
|
||||
_e("Invalid input argument.");
|
||||
return errno = EINVAL;
|
||||
}
|
||||
|
||||
cmd = strtok(line, " ");
|
||||
if (!cmd) {
|
||||
incomplete:
|
||||
_e("Incomplete tty, cannot register.");
|
||||
return errno = EINVAL;
|
||||
}
|
||||
|
||||
if (cmd[0] == '[') { /* [runlevels] */
|
||||
runlevels = &cmd[0];
|
||||
dev = strtok(NULL, " ");
|
||||
if (!dev)
|
||||
goto incomplete;
|
||||
} else {
|
||||
dev = cmd;
|
||||
}
|
||||
|
||||
cmd = strtok(NULL, " ");
|
||||
if (cmd) {
|
||||
baud = strtonum(cmd, 50, 4000000, NULL);
|
||||
term = strtok(NULL, " ");
|
||||
}
|
||||
|
||||
entry = tty_find(dev);
|
||||
if (!entry) {
|
||||
insert = 1;
|
||||
entry = calloc(1, sizeof(*entry));
|
||||
if (!entry)
|
||||
return errno = ENOMEM;
|
||||
}
|
||||
|
||||
entry->data.name = strdup(dev);
|
||||
if (!baud)
|
||||
baud = BAUDRATE;
|
||||
entry->data.baud = baud;
|
||||
entry->data.term = term ? strdup(term) : NULL;
|
||||
entry->data.runlevels = parse_runlevels(runlevels);
|
||||
_d("Registering tty %s at %d baud with term=%s on runlevels %s", dev, baud, term ?: "N/A", runlevels);
|
||||
|
||||
if (insert)
|
||||
LIST_INSERT_HEAD(&tty_list, entry, link);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
tty_node_t *tty_find(char *dev)
|
||||
{
|
||||
tty_node_t *entry;
|
||||
|
||||
LIST_FOREACH(entry, &tty_list, link) {
|
||||
if (!strcmp(dev, entry->data.name))
|
||||
return entry;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
size_t tty_num(void)
|
||||
{
|
||||
size_t num = 0;
|
||||
tty_node_t *entry;
|
||||
|
||||
LIST_FOREACH(entry, &tty_list, link)
|
||||
num++;
|
||||
|
||||
return num;
|
||||
}
|
||||
|
||||
tty_node_t *tty_find_by_pid(pid_t pid)
|
||||
{
|
||||
tty_node_t *entry;
|
||||
|
||||
LIST_FOREACH(entry, &tty_list, link) {
|
||||
if (entry->data.pid == pid)
|
||||
return entry;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void tty_start(finit_tty_t *tty)
|
||||
{
|
||||
int i = 0, is_console = 0;
|
||||
char *cmd, *arg;
|
||||
char line[FILENAME_MAX];
|
||||
char *args[42];
|
||||
|
||||
if (tty->pid)
|
||||
return;
|
||||
|
||||
if (console && !strcmp(tty->name, console))
|
||||
is_console = 1;
|
||||
|
||||
if (!strncmp(tty->name, _PATH_DEV, strlen(_PATH_DEV))) {
|
||||
#if defined(GETTY_AGETTY)
|
||||
snprintf(line, sizeof(line), "%s %s %d %s", GETTY, tty->name, tty->baud, tty->term ?: "");
|
||||
#elif defined(GETTY_BUSYBOX)
|
||||
snprintf(line, sizeof(line), "%s %d %s %s", GETTY, tty->baud, tty->name, tty->term ?: "");
|
||||
#else
|
||||
strlcpy(line, FALLBACK_SHELL, sizeof(line));
|
||||
is_console = 1;
|
||||
#endif
|
||||
} else {
|
||||
strlcpy(line, tty->name, sizeof(line));
|
||||
is_console = 1;
|
||||
}
|
||||
cmd = strtok(line, " ");
|
||||
args[i++] = basename(cmd);
|
||||
while ((arg = strtok(NULL, " ")))
|
||||
args[i++] = arg;
|
||||
args[i] = NULL;
|
||||
|
||||
_d("Starting %s: %s on %s", is_console ? "console" : "TTY", cmd, tty->name);
|
||||
tty->pid = run_getty(cmd, args, is_console);
|
||||
}
|
||||
|
||||
void tty_stop(finit_tty_t *tty)
|
||||
{
|
||||
if (!tty->pid)
|
||||
return;
|
||||
|
||||
_d("Stopping TTY %s", tty->name);
|
||||
kill(tty->pid, SIGTERM);
|
||||
do_sleep(2);
|
||||
kill(tty->pid, SIGKILL);
|
||||
waitpid(tty->pid, NULL, 0);
|
||||
tty->pid = 0;
|
||||
}
|
||||
|
||||
int tty_enabled(finit_tty_t *tty, int runlevel)
|
||||
{
|
||||
if (!tty)
|
||||
return 0;
|
||||
|
||||
if (!ISSET(tty->runlevels, runlevel))
|
||||
return 0;
|
||||
if (fexist(tty->name))
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* TTY monitor, called by svc_monitor() */
|
||||
int tty_respawn(pid_t pid)
|
||||
{
|
||||
tty_node_t *entry = tty_find_by_pid(pid);
|
||||
|
||||
if (!entry)
|
||||
return 0;
|
||||
|
||||
/* Clear PID to be able to respawn it. */
|
||||
entry->data.pid = 0;
|
||||
|
||||
if (!tty_enabled(&entry->data, runlevel))
|
||||
tty_stop(&entry->data);
|
||||
else
|
||||
tty_start(&entry->data);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Start all TTYs that exist in the system and are allowed at this runlevel */
|
||||
void tty_runlevel(int runlevel)
|
||||
{
|
||||
tty_node_t *entry;
|
||||
|
||||
LIST_FOREACH(entry, &tty_list, link) {
|
||||
if (!tty_enabled(&entry->data, runlevel))
|
||||
tty_stop(&entry->data);
|
||||
else
|
||||
tty_start(&entry->data);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,66 @@
|
||||
/* Finit TTY handling
|
||||
*
|
||||
* Copyright (c) 2013 Mattias Walström <lazzer@gmail.com>
|
||||
* Copyright (c) 2013 Joachim Nilsson <troglobit@gmail.com>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef FINIT_TTY_H_
|
||||
#define FINIT_TTY_H_
|
||||
|
||||
#include "queue.h" /* BSD sys/queue.h API */
|
||||
|
||||
#define EVENT_SIZE ((sizeof(struct inotify_event) + 20))
|
||||
|
||||
typedef struct {
|
||||
char *name;
|
||||
int baud;
|
||||
char *term;
|
||||
int runlevels;
|
||||
|
||||
int pid;
|
||||
} finit_tty_t;
|
||||
|
||||
typedef struct tty_node {
|
||||
LIST_ENTRY(tty_node) link;
|
||||
finit_tty_t data;
|
||||
} tty_node_t;
|
||||
|
||||
//extern LIST_HEAD(, tty_node) tty_list;
|
||||
|
||||
int tty_register (char *line);
|
||||
tty_node_t *tty_find (char *dev);
|
||||
size_t tty_num (void);
|
||||
tty_node_t *tty_find_by_pid (pid_t pid);
|
||||
void tty_start (finit_tty_t *tty);
|
||||
void tty_stop (finit_tty_t *tty);
|
||||
int tty_enabled (finit_tty_t *tty, int runlevel);
|
||||
int tty_respawn (pid_t pid);
|
||||
void tty_runlevel (int runlevel);
|
||||
|
||||
#endif /* FINIT_TTY_H_ */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
Reference in New Issue
Block a user