mirror of
https://github.com/troglobit/finit.git
synced 2026-10-19 11:09:35 +00:00
Fix #136: drop old init client tool
The SysV API compatibility layer gives too little value to be worth the effort of maintaining it. Users are encouraged to use the `initctl` tool instead. Signed-off-by: Jacques de Laval <jacques@de-laval.se>
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Jacques de Laval committed
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13 files changed
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@@ -7,7 +7,7 @@ AM_CPPFLAGS += $(lite_CFLAGS)
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if STATIC
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noinst_LTLIBRARIES = libplug.la
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libplug_la_SOURCES = bootmisc.c modprobe.c rtc.c initctl.c pidfile.c procps.c tty.c urandom.c
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libplug_la_SOURCES = bootmisc.c modprobe.c rtc.c pidfile.c procps.c tty.c urandom.c
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if BUILD_ALSA_UTILS_PLUGIN
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libplug_la_SOURCES += alsa-utils.c
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@@ -34,7 +34,7 @@ libplug_la_SOURCES += resolvconf.c
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endif
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else
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pkglib_LTLIBRARIES = bootmisc.la modprobe.la rtc.la initctl.la pidfile.la procps.la tty.la urandom.la
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pkglib_LTLIBRARIES = bootmisc.la modprobe.la rtc.la pidfile.la procps.la tty.la urandom.la
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if BUILD_ALSA_UTILS_PLUGIN
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pkglib_LTLIBRARIES += alsa-utils.la
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@@ -1,194 +0,0 @@
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/* Optional /dev/initctl FIFO monitor, for receiving commands from telinit
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2021 Joachim Wiberg <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 "config.h" /* Generated by configure script */
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#include <errno.h>
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#include <fcntl.h> /* O_RDONLY et al */
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#include <signal.h>
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#include <string.h>
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#include <unistd.h> /* read() */
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#include <sys/stat.h>
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#include <lite/lite.h>
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#include "finit.h"
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#include "conf.h"
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#include "helpers.h"
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#include "plugin.h"
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#include "sig.h"
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#include "service.h"
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static void parse(void *arg, int fd, int events);
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static void setup(void *arg);
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static plugin_t plugin = {
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.name = __FILE__,
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.io = {
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.cb = parse,
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.flags = PLUGIN_IO_READ,
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},
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.hook[HOOK_BASEFS_UP] = {
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.cb = setup
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},
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.depends = { "bootmisc", },
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};
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static void fifo_open(void)
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{
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plugin.io.fd = open(FINIT_FIFO, O_RDWR | O_NONBLOCK | O_CLOEXEC);
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if (-1 == plugin.io.fd) {
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_e("Failed opening %s FIFO, error %d: %s", FINIT_FIFO, errno, strerror(errno));
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return;
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}
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}
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/*
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* We only handle INIT_HALT for differentiating between halt/poweroff
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*/
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static void set_env(char *data)
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{
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const char *var = "INIT_HALT";
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if (strncmp(data, var, strlen(var)))
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return;
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data += strlen(var);
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/*
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* No value means unset env, in this case cancel shutdown.
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*/
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if (data[0] == 0) {
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halt = SHUT_DEFAULT;
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/* XXX: Cancel timer here, when we get support for timed shutdown */
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return;
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}
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if (string_match(data, "=POWERDOWN"))
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halt = SHUT_OFF;
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if (string_match(data, "=HALT"))
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halt = SHUT_HALT;
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/* Now we wait for runlevel change, or cancelled shutdown */
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}
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/*
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* Standard reboot/shutdown utilities talk to init using /run/initctl.
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* We should check if the fifo was recreated and reopen it.
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*
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* For SysV compatibility the default is to halt the system when issuing
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* `init 0`, unless INIT_HALT=POWERDOWN, as performed by the SysV utils.
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*/
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static void parse(void *arg, int fd, int events)
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{
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int lvl;
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struct init_request rq;
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while (1) {
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ssize_t len = read(fd, &rq, sizeof(rq));
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if (len <= 0) {
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if (-1 == len) {
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if (EINTR == errno)
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continue;
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if (EAGAIN == errno)
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break;
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_e("Failed reading initctl request, error %d: %s", errno, strerror(errno));
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}
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_d("Nothing to do, bailing out.");
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break;
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}
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if (rq.magic != INIT_MAGIC || len != sizeof(rq)) {
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_e("Invalid initctl request.");
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break;
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}
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switch (rq.cmd) {
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case INIT_CMD_RUNLVL:
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switch (rq.runlevel) {
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case 's':
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case 'S':
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rq.runlevel = '1'; /* Single user mode */
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/* fallthrough */
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case '0'...'9':
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_d("Setting new runlevel %c", rq.runlevel);
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lvl = rq.runlevel - '0';
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if (lvl == 6)
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halt = SHUT_REBOOT;
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service_runlevel(lvl);
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break;
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default:
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_d("Unsupported runlevel: %d", rq.runlevel);
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break;
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}
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break;
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case INIT_CMD_RELOAD:
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service_reload_dynamic();
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break;
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case INIT_CMD_SETENV:
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set_env(rq.data);
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break;
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default:
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_d("Unsupported cmd: %d", rq.cmd);
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break;
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}
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}
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close(fd);
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fifo_open();
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}
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/* Must run after the base FS is up, needs /run, or /var/run */
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static void setup(void *arg)
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{
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_d("Setting up %s", FINIT_FIFO);
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makefifo(FINIT_FIFO, 0600);
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fifo_open();
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plugin_io_init(&plugin);
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}
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PLUGIN_INIT(plugin_init)
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{
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plugin_register(&plugin);
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}
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PLUGIN_EXIT(plugin_exit)
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{
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plugin_unregister(&plugin);
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}
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/**
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* Local Variables:
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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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