mirror of
https://github.com/troglobit/finit.git
synced 2026-10-01 05:22:48 +07:00
Minor cleanup. Moved code around a bit, to functions, away from main().
This commit is in preparation for importing the Westermo code changes. Slowly refactoring the finit core into a more modularized unit to be a bit more maintainable. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
@@ -1,4 +1,5 @@
|
||||
Copyright (c) 2008 Claudio Matsuoka
|
||||
Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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Copyright (c) 2009-2012 Joachim Nilsson <troglobit@gmail.com>
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||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
|
||||
@@ -0,0 +1,84 @@
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||||
# finit - The Improved fast init
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||||
#
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||||
# Copyright (c) 2008 Claudio Matsuoka
|
||||
#
|
||||
# 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.
|
||||
|
||||
.PHONY: all romfs clean
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|
||||
# Top directory for building complete system, fall back to this directory
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ROOTDIR ?= $(shell pwd)
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VERSION = 1.0-pre
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PKG = finit-$(VERSION)
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EXEC = finit
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OBJS = finit.o helpers.o initctl.o
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SRCS = $(OBJS:.o=.c)
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||||
DEPS = $(addprefix .,$(SRCS:.c=.d))
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CPPFLAGS += -DVERSION=\"$(VERSION)\" -DWHOAMI=\"`whoami`@`hostname`\"
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CPPFLAGS += -DLISTEN_INITCTL -DBUILTIN_RUNPARTS
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CPPFLAGS += -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_GNU_SOURCE
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# Disable annoying gcc warning for "warn_unused_result", see GIT 37af997
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CPPFLAGS += -U_FORTIFY_SOURCE
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CPPFLAGS += -I$(ROOTDIR)/$(CONFIG_LINUXDIR)/include/
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CFLAGS += -W -Wall -Werror -Os
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|
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prefix ?= /usr/local
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sysconfdir ?= /etc
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datadir = $(prefix)/share/doc/finit
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mandir = $(prefix)/share/man/man8
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|
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include common.mk
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||||
|
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all: Makefile $(EXEC)
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|
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$(OBJS): Makefile
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|
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finit: $(OBJS)
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|
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install: all
|
||||
@install -d $(DESTDIR)$(prefix)/sbin
|
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@install -d $(DESTDIR)$(sysconfdir)
|
||||
@install -d $(DESTDIR)$(datadir)
|
||||
@install -d $(DESTDIR)$(mandir)
|
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@for file in $(EXEC); do \
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install -m 0755 $$file $(DESTDIR)$(prefix)/sbin/$$file; \
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done
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@ln -sf /sbin/finit /sbin/init
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|
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uninstall:
|
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-@for file in $(EXEC); do \
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$(RM) $(DESTDIR)$(prefix)/sbin/$$file; \
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||||
done
|
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-@$(RM) /sbin/finit /sbin/init
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|
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clean:
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-@$(RM) $(OBJS) $(DEPS) $(EXEC)
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||||
|
||||
distclean: clean
|
||||
-@$(RM) $(JUNK) unittest *.o
|
||||
|
||||
# Include automatically generated rules, such as:
|
||||
# uncgi.o: .../some/dir/uncgi.c /usr/include/stdio.h
|
||||
# but don't bother during clean!
|
||||
ifneq ($(MAKECMDGOALS),clean)
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||||
ifneq ($(MAKECMDGOALS),distclean)
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-include $(DEPS)
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endif
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endif
|
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@@ -0,0 +1,20 @@
|
||||
# Some junk files we always want to be removed when doing a make clean.
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||||
JUNK = *~ *.bak *.aux *.dvi *.idx *.ind *.log *.ps *.map .*.d DEADJOE semantic.cache *.gdb *.elf core core.*
|
||||
RM := -@$(RM)
|
||||
MAKE := @$(MAKE)
|
||||
MAKEFLAGS = --no-print-directory
|
||||
|
||||
# Smart autodependecy generation via GCC -M.
|
||||
.%.d: %.c
|
||||
@$(SHELL) -ec "$(CC) -MM $(CFLAGS) $(CPPFLAGS) $< \
|
||||
| sed 's,.*: ,$*.o $@ : ,g' > $@; \
|
||||
[ -s $@ ] || rm -f $@"
|
||||
|
||||
# Override default implicit rules
|
||||
%.o: %.c
|
||||
@printf " CC $(subst $(ROOTDIR)/,,$(shell pwd)/$@)\n"
|
||||
@$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
|
||||
|
||||
%: %.o
|
||||
@printf " LINK $(subst $(ROOTDIR)/,,$(shell pwd)/$@)\n"
|
||||
@$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$@.map -o $@ $^ $(LDLIBS$(LDLIBS-$(@)))
|
||||
@@ -1,25 +1,25 @@
|
||||
/*
|
||||
Improved fast init
|
||||
Improved fast init
|
||||
|
||||
Copyright (c) 2008 Claudio Matsuoka
|
||||
Copyright (c) 2008 Claudio Matsuoka
|
||||
|
||||
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:
|
||||
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 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.
|
||||
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 <stdio.h>
|
||||
@@ -39,89 +39,15 @@ THE SOFTWARE.
|
||||
#include <linux/fs.h>
|
||||
#include <utmp.h>
|
||||
|
||||
#include "finit.h"
|
||||
#include "helpers.h"
|
||||
|
||||
#ifndef DEFUSER
|
||||
#define DEFUSER "user"
|
||||
#endif
|
||||
|
||||
/* Distribution configuration */
|
||||
|
||||
#if defined DIST_MDV /* Mandriva */
|
||||
#define RANDOMSEED "/var/lib/random-seed"
|
||||
#define SYSROOT "/sysroot"
|
||||
#define GETTY "/usr/bin/openvt /sbin/mingetty tty2"
|
||||
#define RUNPARTS "/usr/bin/run-parts"
|
||||
#define REMOUNT_ROOTFS_RW
|
||||
#define MAKE_DEVICES
|
||||
#define MAKE_DEV_VCS
|
||||
#define PAM_CONSOLE
|
||||
#define LISTEN_INITCTL
|
||||
#define RUNLEVEL 5
|
||||
#define USE_MESSAGE_BUS
|
||||
#elif defined DIST_EEEXUBUNTU /* eeeXubuntu */
|
||||
#define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
#define SYSROOT "/sysroot"
|
||||
#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
|
||||
#define RUNPARTS "/bin/run-parts"
|
||||
#define REMOUNT_ROOTFS_RW
|
||||
#define MAKE_DEVICES
|
||||
#define TOUCH_ETC_NETWORK_RUN_IFSTATE
|
||||
#define LISTEN_INITCTL
|
||||
#else /* original Eeepc distribution */
|
||||
#define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
#define SYSROOT "/mnt"
|
||||
#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
|
||||
#define RUNPARTS "/bin/run-parts"
|
||||
#define TOUCH_ETC_NETWORK_RUN_IFSTATE
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||||
#define USE_ETC_RESOLVCONF_RUN
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||||
#endif
|
||||
|
||||
|
||||
/* From sysvinit */
|
||||
/* Set a signal handler. */
|
||||
#define SETSIG(sa, sig, fun, flags) \
|
||||
do { \
|
||||
sa.sa_handler = fun; \
|
||||
sa.sa_flags = flags; \
|
||||
sigemptyset(&sa.sa_mask); \
|
||||
sigaction(sig, &sa, NULL); \
|
||||
} while (0)
|
||||
|
||||
#ifdef LISTEN_INITCTL
|
||||
|
||||
#define INIT_MAGIC 0x03091969
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#define INIT_CMD_RUNLVL 1
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||||
|
||||
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];
|
||||
};
|
||||
#endif
|
||||
|
||||
#define touch(x) mknod((x), S_IFREG|0644, 0)
|
||||
#define chardev(x,m,maj,min) mknod((x), S_IFCHR|(m), makedev((maj),(min)))
|
||||
#define blkdev(x,m,maj,min) mknod((x), S_IFBLK|(m), makedev((maj),(min)))
|
||||
|
||||
#define MATCH_CMD(l,c,x) \
|
||||
((!strncmp((l), (c), strlen((c)))) && ((x) = (l) + strlen((c))))
|
||||
|
||||
#define _d(x...) do { if (debug) { printf(x); printf("\n"); } } while (0)
|
||||
|
||||
#define LINE_SIZE 1024
|
||||
#define CMD_SIZE 256
|
||||
#define USERNAME_SIZE 16
|
||||
#define HOSTNAME_SIZE 32
|
||||
|
||||
void shutdown(int);
|
||||
void signal_handler(int);
|
||||
void chld_handler(int);
|
||||
static void chld_handler(int sig __attribute__ ((unused)));
|
||||
static void sig_init(void);
|
||||
|
||||
static int debug = 0;
|
||||
static char sdown[CMD_SIZE];
|
||||
static char sdown[CMD_SIZE] = "";
|
||||
|
||||
|
||||
static void build_cmd(char *cmd, char *x, int len)
|
||||
{
|
||||
@@ -131,7 +57,7 @@ static void build_cmd(char *cmd, char *x, int len)
|
||||
c = cmd + strlen(cmd);
|
||||
|
||||
/* skip spaces */
|
||||
for (; *x && (*x == ' ' || *x == '\t'); x++);
|
||||
for (; *x && (*x == ' ' || *x == '\t'); x++) ;
|
||||
|
||||
/* copy next arg */
|
||||
for (l = 0; *x && *x != '#' && *x != '\t' && l < len; l++)
|
||||
@@ -141,55 +67,10 @@ static void build_cmd(char *cmd, char *x, int len)
|
||||
_d("cmd = %s", cmd);
|
||||
}
|
||||
|
||||
|
||||
#ifdef LISTEN_INITCTL
|
||||
|
||||
/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
|
||||
* We should check if the fifo was recreated and reopen it.
|
||||
*/
|
||||
static void listen_initctl()
|
||||
int main(void)
|
||||
{
|
||||
if (!fork()) {
|
||||
int ctl;
|
||||
fd_set fds;
|
||||
struct init_request request;
|
||||
|
||||
mkfifo("/dev/initctl", 0600);
|
||||
ctl = open("/dev/initctl", O_RDONLY);
|
||||
|
||||
while (1) {
|
||||
FD_ZERO(&fds);
|
||||
FD_SET(ctl, &fds);
|
||||
if (select(ctl + 1, &fds, NULL, NULL, NULL) <= 0)
|
||||
continue;
|
||||
|
||||
read(ctl, &request, sizeof(request));
|
||||
|
||||
if (request.magic != INIT_MAGIC)
|
||||
continue;
|
||||
|
||||
if (request.cmd == INIT_CMD_RUNLVL) {
|
||||
switch (request.runlevel) {
|
||||
case '0':
|
||||
shutdown(SIGUSR2);
|
||||
break;
|
||||
case '6':
|
||||
shutdown(SIGUSR1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
int main()
|
||||
{
|
||||
int i;
|
||||
FILE *f;
|
||||
char line[LINE_SIZE];
|
||||
struct sigaction sa, act;
|
||||
sigset_t nmask, nmask2;
|
||||
char username[USERNAME_SIZE] = DEFUSER;
|
||||
char hostname[HOSTNAME_SIZE] = "eviltwin";
|
||||
char cmd[CMD_SIZE];
|
||||
@@ -207,33 +88,13 @@ int main()
|
||||
|
||||
chdir("/");
|
||||
umask(022);
|
||||
|
||||
/*
|
||||
* Signal management
|
||||
*/
|
||||
for (i = 1; i < NSIG; i++)
|
||||
SETSIG(sa, i, SIG_IGN, SA_RESTART);
|
||||
|
||||
SETSIG(sa, SIGINT, shutdown, 0);
|
||||
SETSIG(sa, SIGPWR, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGUSR1, shutdown, 0);
|
||||
SETSIG(sa, SIGUSR2, shutdown, 0);
|
||||
SETSIG(sa, SIGTERM, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGALRM, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGHUP, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGCONT, SIG_IGN, SA_RESTART);
|
||||
SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
|
||||
|
||||
/* Block sigchild while forking */
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigprocmask(SIG_BLOCK, &nmask, NULL);
|
||||
|
||||
reboot(RB_DISABLE_CAD);
|
||||
|
||||
mount("none", "/proc", "proc", 0, NULL);
|
||||
mount("none", "/sys", "sysfs", 0, NULL);
|
||||
|
||||
/* Setup signals */
|
||||
sig_init();
|
||||
|
||||
/*
|
||||
* Parse kernel parameters
|
||||
*/
|
||||
@@ -252,8 +113,6 @@ int main()
|
||||
|
||||
_d("finit " VERSION " (built " __DATE__ " " __TIME__ " by " WHOAMI ")");
|
||||
|
||||
setsid();
|
||||
|
||||
/*
|
||||
* Parse configuration file
|
||||
*/
|
||||
@@ -314,7 +173,7 @@ int main()
|
||||
blkdev("/dev/sda5", 0660, 8, 5);
|
||||
blkdev("/dev/sda6", 0660, 8, 6);
|
||||
#ifdef MAKE_DEV_VCS
|
||||
/* Caio reports that newer X.org needs these */
|
||||
/* Caio reports that newer X.org needs these */
|
||||
blkdev("/dev/vcs1", 0660, 7, 1);
|
||||
blkdev("/dev/vcs2", 0660, 7, 2);
|
||||
blkdev("/dev/vcs3", 0660, 7, 3);
|
||||
@@ -370,15 +229,15 @@ int main()
|
||||
chardev("/dev/ptmx", 0666, 5, 2);
|
||||
chardev("/dev/null", 0666, 1, 3);
|
||||
chmod("/dev/null", 0666);
|
||||
chardev("/dev/mem", 0640, 1, 1);
|
||||
chardev("/dev/tty0", 0660, 4, 0);
|
||||
chardev("/dev/tty1", 0660, 4, 1);
|
||||
chardev("/dev/tty2", 0660, 4, 2);
|
||||
chardev("/dev/tty3", 0660, 4, 3);
|
||||
chardev("/dev/input/mice", 0660, 13, 63);
|
||||
chardev("/dev/input/event0", 0660, 13, 64);
|
||||
chardev("/dev/agpgart", 0660, 10, 175);
|
||||
blkdev("/dev/loop0", 0600, 7, 0);
|
||||
chardev("/dev/mem", 0640, 1, 1);
|
||||
chardev("/dev/tty0", 0660, 4, 0);
|
||||
chardev("/dev/tty1", 0660, 4, 1);
|
||||
chardev("/dev/tty2", 0660, 4, 2);
|
||||
chardev("/dev/tty3", 0660, 4, 3);
|
||||
chardev("/dev/input/mice", 0660, 13, 63);
|
||||
chardev("/dev/input/event0", 0660, 13, 64);
|
||||
chardev("/dev/agpgart", 0660, 10, 175);
|
||||
blkdev("/dev/loop0", 0600, 7, 0);
|
||||
#endif
|
||||
|
||||
unlink("/etc/mtab");
|
||||
@@ -407,7 +266,7 @@ int main()
|
||||
if (isalnum(d->d_name[0]))
|
||||
continue;
|
||||
snprintf(line, LINE_SIZE,
|
||||
"/etc/resolvconf/run/interface/%s", d->d_name);
|
||||
"/etc/resolvconf/run/interface/%s", d->d_name);
|
||||
unlink(line);
|
||||
}
|
||||
|
||||
@@ -444,29 +303,31 @@ int main()
|
||||
#endif
|
||||
chdir("/");
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
|
||||
touch("/etc/network/run/ifstate");
|
||||
#endif
|
||||
|
||||
if ((f = fopen("/etc/hostname", "r")) != NULL) {
|
||||
fgets(hostname, HOSTNAME_SIZE, f);
|
||||
fgets(hostname, HOSTNAME_SIZE, f);
|
||||
chomp(hostname);
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
sethostname(hostname, strlen(hostname));
|
||||
sethostname(hostname, strlen(hostname));
|
||||
|
||||
ifconfig("lo", "127.0.0.1", "255.0.0.0", 1);
|
||||
|
||||
/*
|
||||
* Set random seed
|
||||
*/
|
||||
#ifdef RANDOMSEED
|
||||
copyfile(RANDOMSEED, "/dev/urandom", 0);
|
||||
unlink(RANDOMSEED);
|
||||
umask(077);
|
||||
copyfile("/dev/urandom", RANDOMSEED, 4096);
|
||||
umask(0);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Console setup (for X)
|
||||
@@ -490,11 +351,15 @@ int main()
|
||||
mkdir("/tmp/.ICE-unix", 01777);
|
||||
umask(022);
|
||||
|
||||
/* Start console login. */
|
||||
system(GETTY "&");
|
||||
|
||||
_d("forking");
|
||||
if (!fork()) {
|
||||
/* child process */
|
||||
int i;
|
||||
sigset_t nmask;
|
||||
struct sigaction sa;
|
||||
|
||||
vhangup();
|
||||
|
||||
@@ -502,15 +367,15 @@ int main()
|
||||
close(1);
|
||||
close(0);
|
||||
|
||||
if (open("/dev/tty1", O_RDWR) != 0)
|
||||
if (open(CONSOLE, O_RDWR) != 0)
|
||||
exit(1);
|
||||
|
||||
sigemptyset(&act.sa_mask);
|
||||
act.sa_handler = SIG_DFL;
|
||||
sigemptyset(&sa.sa_mask);
|
||||
sa.sa_handler = SIG_DFL;
|
||||
|
||||
sigemptyset(&nmask2);
|
||||
sigaddset(&nmask2, SIGCHLD);
|
||||
sigprocmask(SIG_UNBLOCK, &nmask2, NULL);
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigprocmask(SIG_UNBLOCK, &nmask, NULL);
|
||||
|
||||
for (i = 1; i < NSIG; i++)
|
||||
sigaction(i, &sa, NULL);
|
||||
@@ -536,7 +401,7 @@ int main()
|
||||
/* ConsoleKit needs this */
|
||||
setenv("DISPLAY", ":0", 1);
|
||||
|
||||
while (access("/tmp/shutdown", F_OK) < 0) {
|
||||
while (!fexist("/tmp/shutdown")) {
|
||||
_d("start X as %s\n", username);
|
||||
if (debug) {
|
||||
snprintf(line, LINE_SIZE,
|
||||
@@ -553,27 +418,29 @@ int main()
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
||||
|
||||
/* parent process */
|
||||
|
||||
|
||||
/* sleep(1); */
|
||||
system("/usr/sbin/services.sh &>/dev/null&");
|
||||
|
||||
while (1) {
|
||||
sigset_t nmask;
|
||||
|
||||
sigemptyset(&nmask);
|
||||
pselect(0, NULL, NULL, NULL, NULL, &nmask);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Shut down on INT USR1 USR2
|
||||
*/
|
||||
void shutdown(int sig)
|
||||
void shutdown_handler(int sig)
|
||||
{
|
||||
touch("/tmp/shutdown");
|
||||
if (sdown) {
|
||||
if (sdown[0] != 0) {
|
||||
system(sdown);
|
||||
}
|
||||
|
||||
@@ -599,11 +466,10 @@ void shutdown(int sig)
|
||||
reboot(RB_POWER_OFF);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* SIGCHLD: one of our children has died
|
||||
*/
|
||||
void chld_handler(int sig)
|
||||
static void chld_handler(int sig __attribute__ ((unused)))
|
||||
{
|
||||
int status;
|
||||
|
||||
@@ -613,3 +479,58 @@ void chld_handler(int sig)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Signal management - Be conservative with what finit responds to!
|
||||
*
|
||||
* The standard SysV init only responds to the following signals:
|
||||
* SIGHUP
|
||||
* Has the same effect as telinit q.
|
||||
*
|
||||
* SIGUSR1
|
||||
* On receipt of this signals, init closes and re-opens its control
|
||||
* fifo, /dev/initctl. Useful for bootscripts when /dev is remounted.
|
||||
*
|
||||
* SIGINT
|
||||
* Normally the kernel sends this signal to init when CTRL-ALT-DEL is
|
||||
* pressed. It activates the ctrlaltdel action.
|
||||
*
|
||||
* SIGWINCH
|
||||
* The kernel sends this signal when the KeyboardSignal key is hit.
|
||||
* It activates the kbrequest action.
|
||||
*/
|
||||
static void sig_init(void)
|
||||
{
|
||||
int i;
|
||||
sigset_t nmask;
|
||||
struct sigaction sa;
|
||||
|
||||
for (i = 1; i < NSIG; i++)
|
||||
SETSIG(sa, i, SIG_IGN, SA_RESTART);
|
||||
|
||||
SETSIG(sa, SIGINT, shutdown_handler, 0);
|
||||
SETSIG(sa, SIGPWR, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGUSR1, shutdown_handler, 0);
|
||||
SETSIG(sa, SIGUSR2, shutdown_handler, 0);
|
||||
SETSIG(sa, SIGTERM, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGALRM, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGHUP, SIG_IGN, 0);
|
||||
SETSIG(sa, SIGCONT, SIG_IGN, SA_RESTART);
|
||||
SETSIG(sa, SIGCHLD, chld_handler, SA_RESTART);
|
||||
|
||||
/* Block sigchild while forking */
|
||||
sigemptyset(&nmask);
|
||||
sigaddset(&nmask, SIGCHLD);
|
||||
sigprocmask(SIG_BLOCK, &nmask, NULL);
|
||||
|
||||
/* Disable CTRL-ALT-DELETE from kernel, we handle shutdown gracefully with SIGINT */
|
||||
reboot(RB_DISABLE_CAD);
|
||||
setsid();
|
||||
}
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
|
||||
@@ -0,0 +1,124 @@
|
||||
/*
|
||||
Improved fast init
|
||||
|
||||
Copyright (c) 2008 Claudio Matsuoka
|
||||
|
||||
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_H__
|
||||
#define FINIT_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)
|
||||
|
||||
/* Distribution configuration */
|
||||
|
||||
#if defined DIST_MDV /* Mandriva */
|
||||
#define RANDOMSEED "/var/lib/random-seed"
|
||||
#define SYSROOT "/sysroot"
|
||||
#define CONSOLE "/dev/console"
|
||||
#define GETTY "/usr/bin/openvt /sbin/mingetty tty2"
|
||||
#define RUNPARTS "/usr/bin/run-parts"
|
||||
#define REMOUNT_ROOTFS_RW
|
||||
#define MAKE_DEVICES
|
||||
#define MAKE_DEV_VCS
|
||||
#define PAM_CONSOLE
|
||||
#define LISTEN_INITCTL
|
||||
#define RUNLEVEL 5
|
||||
#define USE_MESSAGE_BUS
|
||||
#elif defined DIST_EEEXUBUNTU /* eeeXubuntu */
|
||||
#define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
#define SYSROOT "/sysroot"
|
||||
#define CONSOLE "/dev/console"
|
||||
#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
|
||||
#define RUNPARTS "/bin/run-parts"
|
||||
#define REMOUNT_ROOTFS_RW
|
||||
#define MAKE_DEVICES
|
||||
#define TOUCH_ETC_NETWORK_RUN_IFSTATE
|
||||
#define LISTEN_INITCTL
|
||||
#else /* original Eeepc distribution */
|
||||
#define RANDOMSEED "/var/lib/urandom/random-seed"
|
||||
#define SYSROOT "/mnt"
|
||||
#define CONSOLE "/dev/console"
|
||||
#define GETTY "/usr/bin/openvt /sbin/getty 38400 tty2"
|
||||
#define RUNPARTS "/bin/run-parts"
|
||||
#define TOUCH_ETC_NETWORK_RUN_IFSTATE
|
||||
#define USE_ETC_RESOLVCONF_RUN
|
||||
#endif
|
||||
|
||||
#ifndef DEFUSER
|
||||
#define DEFUSER "user"
|
||||
#endif
|
||||
|
||||
#define LINE_SIZE 1024
|
||||
#define CMD_SIZE 256
|
||||
#define USERNAME_SIZE 16
|
||||
#define HOSTNAME_SIZE 32
|
||||
|
||||
/* From sysvinit */
|
||||
/* Set a signal handler. */
|
||||
#define SETSIG(sa, sig, fun, flags) \
|
||||
do { \
|
||||
sa.sa_handler = fun; \
|
||||
sa.sa_flags = flags; \
|
||||
sigemptyset(&sa.sa_mask); \
|
||||
sigaction(sig, &sa, NULL); \
|
||||
} while (0)
|
||||
|
||||
|
||||
#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
|
||||
|
||||
/* Match one command. */
|
||||
#define MATCH_CMD(l,c,x) \
|
||||
((!strncmp((l), (c), strlen((c)))) && ((x) = (l) + strlen((c))))
|
||||
|
||||
#define _d(fmt, args...) do { if (debug) { fprintf(stderr, "%s(): " fmt "\n", __func__, ##args); } } while (0)
|
||||
|
||||
void shutdown_handler(int sig);
|
||||
void listen_initctl(void);
|
||||
|
||||
#endif /* FINIT_H__ */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* indent-tabs-mode: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
@@ -0,0 +1,92 @@
|
||||
/*
|
||||
Improved fast init
|
||||
|
||||
Copyright (c) 2008 Claudio Matsuoka
|
||||
|
||||
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.
|
||||
*/
|
||||
|
||||
#ifdef LISTEN_INITCTL
|
||||
#include <features.h>
|
||||
#include <fcntl.h>
|
||||
#include <signal.h>
|
||||
#include <sys/select.h> /* According to POSIX.1-2001 */
|
||||
#include <sys/socket.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "finit.h"
|
||||
|
||||
#define INIT_MAGIC 0x03091969
|
||||
#define INIT_CMD_RUNLVL 1
|
||||
|
||||
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];
|
||||
};
|
||||
|
||||
/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
|
||||
* We should check if the fifo was recreated and reopen it.
|
||||
*/
|
||||
void listen_initctl(void)
|
||||
{
|
||||
if (!fork()) {
|
||||
int ctl;
|
||||
fd_set fds;
|
||||
struct init_request request;
|
||||
|
||||
mkfifo("/dev/initctl", 0600);
|
||||
ctl = open("/dev/initctl", O_RDONLY);
|
||||
|
||||
while (1) {
|
||||
FD_ZERO(&fds);
|
||||
FD_SET(ctl, &fds);
|
||||
if (select(ctl + 1, &fds, NULL, NULL, NULL) <= 0)
|
||||
continue;
|
||||
|
||||
read(ctl, &request, sizeof(request));
|
||||
|
||||
if (request.magic != INIT_MAGIC)
|
||||
continue;
|
||||
|
||||
if (request.cmd == INIT_CMD_RUNLVL) {
|
||||
switch (request.runlevel) {
|
||||
case '0':
|
||||
shutdown_handler(SIGUSR2);
|
||||
break;
|
||||
case '6':
|
||||
shutdown_handler(SIGUSR1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* LISTEN_INITCTL */
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* version-control: t
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
Reference in New Issue
Block a user