mirror of
https://github.com/troglobit/finit.git
synced 2026-10-01 05:22:48 +07:00
Joachim Nilsson
077a7e82e0
finit.conf:
Use this as /etc/finit.conf on a Debian 6.0 based system with X
installed and sysklogd instead of rsyslogd. Works.
services:
Alternative method for extending the finit boot procedure. Simply
place this script file in an /etc/finit.d/ directory. The script
uses the standard run-parts tool to chain load other start scripts.
helpers.c:
o New functions:
- run(): home grown system() replacement
- run_interactive(): display progress and status when called
o Bugfix start_process(), make sure to use same signal setup for
children as in run() and run_interactive(). Also, use execvp()
instead of execv() to allow searching $PATH for executables.
finit.h:
o Move signal specific code to new signal.h.
o Bypass verbosity setting to let echo() always print to screen.
finit.c:
o Make run_parts() the default, remove external deps, it works.
o Use run() and run_interactive() to speed up execution further
on embedded systems where forking is expensive.
o Kernel cmdline "quiet" should not close STDIO since this makes
it impossible to run some daemons and start scripts. Instead,
we let "quiet" toggle the finit verbosity setting.
o Remove kernel cmdline "--verbose" (Upstart compat), to be used
to enable verbose finit when kernel should be quiet.
o Setup kernel specific settings in /etc/sysctl.conf
o Fix D-Bus startup problems. Probably what caused X from not
working initially. Silly rabbit.
o Use system() workaround to start X, cannot get it to start
at all using run() or run_interactive() at the moment.
signal.h:
New file, header file for signal.c. Was about time.
signal.c:
Remove blocking of SIGCHLD from sig_setup(), instead we setup
SIGCHLD early in sig_init() to handle fork() in run() & C:o.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/* Optional /dev/initctl FIFO monitor
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <features.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <sys/select.h> /* According to POSIX.1-2001 */
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "finit.h"
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#include "signal.h" /* do_shutdown() */
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#define INIT_MAGIC 0x03091969
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#define INIT_CMD_RUNLVL 1
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struct init_request {
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int magic; /* Magic number */
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int cmd; /* What kind of request */
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int runlevel; /* Runlevel to change to */
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int sleeptime; /* Time between TERM and KILL */
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char data[368];
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};
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#ifdef LISTEN_INITCTL
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/* Standard reboot/shutdown utilities talk to init using /dev/initctl.
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* We should check if the fifo was recreated and reopen it.
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*/
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void listen_initctl(void)
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{
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_d("Forking %s watcher...", FINIT_FIFO);
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if (!fork()) {
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int ctl;
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fd_set fds;
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struct init_request request;
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_d("Setting up %s", FINIT_FIFO);
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mkfifo(FINIT_FIFO, 0600);
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ctl = open(FINIT_FIFO, O_RDONLY);
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while (1) {
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FD_ZERO(&fds);
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FD_SET(ctl, &fds);
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_d("Pending %s activity...", FINIT_FIFO);
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if (select(ctl + 1, &fds, NULL, NULL, NULL) <= 0)
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continue;
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_d("Receiving request on %s...", FINIT_FIFO);
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read(ctl, &request, sizeof(request));
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if (request.magic != INIT_MAGIC)
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continue;
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_d("Magic OK...");
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if (request.cmd == INIT_CMD_RUNLVL) {
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switch (request.runlevel) {
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case '0':
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_d("Halting system (SIGUSR2)");
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do_shutdown(SIGUSR2);
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break;
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case '6':
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_d("Rebooting system (SIGUSR1)");
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do_shutdown(SIGUSR1);
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break;
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default:
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_d("Unsupported runlevel: %d", request.runlevel);
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break;
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}
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}
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}
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}
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}
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#endif /* LISTEN_INITCTL */
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/**
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* Local Variables:
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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