Plugin starts/stops Plymouth daemon, sends messages about services being started and sends progress updates.master
commit
abf6fdcc2b
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PLUGIN_NAME := plymouth
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PLUGINS_PATH := $(DESTDIR)/lib/rc/plugins
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CFLAGS += -fPIC -Wall
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CPPFLAGS += -DDEBUG
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LDLIBS := -leinfo -lrc
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LDFLAGS += -fPIC -shared
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INSTALL := install -D
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.PHONY: install clean
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$(PLUGIN_NAME).so: $(PLUGIN_NAME).o
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$(CC) $(LDFLAGS) -Wl,-soname,$@ $+ -o $@ $(LDLIBS)
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clean:
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$(RM) *.o *.so
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install: $(PLUGIN_NAME).so
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$(INSTALL) $(PLUGIN_NAME).so $(PLUGINS_PATH)/$(PLUGIN_NAME).so
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uninstall:
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$(RM) $(PLUGINS_PATH)/$(PLUGIN_NAME).so
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@ -0,0 +1,194 @@
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/* plymouth.c - Plymouth plugin for the OpenRC init system
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*
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* Copyright (C) 2011 Amadeusz Żołnowski <aidecoe@gentoo.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <einfo.h>
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#include <rc.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef DEBUG
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# define DBGSTR(x) fprintf(dbg, " " #x "=\"%s\"", x)
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#else
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# define DBGSTR(x)
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#endif
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int ply_update(const char* hook, const char* name)
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{
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char buffer[100];
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sprintf(buffer, "plymouth update --status=%s-%s", hook, name);
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if(system(buffer) != 0) {
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ewarn("Failed on sending status update to Plymouth daemon!");
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return 1;
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}
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return 0;
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}
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int ply_text(const char* hook, const char* name)
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{
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char buffer[100];
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sprintf(buffer, "plymouth message --text=\"%s %s\"", hook, name);
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if(system(buffer) != 0) {
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ewarn("Failed on sending message to Plymouth daemon!");
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return 1;
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}
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return 0;
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}
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int ply_start()
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{
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if(system("plymouth --ping") != 0) {
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if(system("plymouthd") != 0) {
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eerror("Starting Plymouth daemon failed!");
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return 1;
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}
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}
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if(system("plymouth --sysinit") != 0) {
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eerror("plymouth --sysinit failed!");
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return 1;
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}
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if(system("plymouth --show-splash") != 0) {
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eerror("Couldn't show Plymouth splash!");
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return 1;
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}
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return 0;
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}
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int ply_stop()
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{
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if(system("plymouth --quit") != 0) {
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eerror("Error when quiting Plymouth daemon.");
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return 1;
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}
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return 0;
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}
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int rc_plugin_hook(RC_HOOK hook, const char *name)
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{
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int retval = 0;
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char* runlevel = rc_runlevel_get();
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const char* bootlevel = getenv("RC_BOOTLEVEL");
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const char* defaultlevel = getenv("RC_DEFAULTLEVEL");
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#ifdef DEBUG
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FILE* dbg;
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if(strcmp(runlevel, RC_LEVEL_SHUTDOWN) == 0)
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dbg = fopen("/plymouth.log", "a");
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else
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dbg = fopen("/dev/.initramfs/plymouth.log", "a");
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fprintf(dbg, "hook=%d", hook);
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#endif
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/* Don't do anything if we're not booting or shutting down. */
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if(!(rc_runlevel_starting() || rc_runlevel_stopping())) {
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if(!(hook == RC_HOOK_RUNLEVEL_STOP_IN ||
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hook == RC_HOOK_RUNLEVEL_STOP_OUT ||
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hook == RC_HOOK_RUNLEVEL_START_IN ||
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hook == RC_HOOK_RUNLEVEL_START_OUT))
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goto exit;
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}
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/* It's assumed in ply_* functions that 'name' is not longer than 50 chars.
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*/
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if(strlen(name) > 50)
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goto exit;
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DBGSTR(name);
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DBGSTR(runlevel);
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switch(hook) {
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case RC_HOOK_RUNLEVEL_STOP_IN:
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retval |= ply_update("RUNLEVEL_STOP_IN", name);
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/* Start the Plymouth daemon and show splash when system is being shut
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* down. */
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if(strcmp(name, RC_LEVEL_SHUTDOWN) == 0) {
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ply_start();
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}
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break;
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case RC_HOOK_RUNLEVEL_STOP_OUT:
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retval |= ply_update("RUNLEVEL_STOP_OUT", name);
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break;
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case RC_HOOK_RUNLEVEL_START_IN:
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/* Start the Plymouth daemon and show splash when entering the boot
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* runlevel. Required /proc and /sys should already be mounted in
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* sysinit runlevel. */
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if(strcmp(name, bootlevel) == 0) {
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if((retval |= ply_start()) != 0)
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goto exit;
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}
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retval |= ply_update("RUNLEVEL_START_IN", name);
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break;
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case RC_HOOK_RUNLEVEL_START_OUT:
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retval |= ply_update("RUNLEVEL_START_OUT", name);
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/* Stop the Plymouth daemon right after default runlevel is started. */
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if(strcmp(name, defaultlevel) == 0) {
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retval |= ply_stop();
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}
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break;
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case RC_HOOK_SERVICE_START_NOW:
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retval |= ply_text("Starting service", name);
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break;
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case RC_HOOK_SERVICE_START_OUT:
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break;
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case RC_HOOK_SERVICE_START_DONE:
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retval |= ply_update("SERVICE_START_DONE", name);
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break;
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case RC_HOOK_SERVICE_STOP_NOW:
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retval |= ply_text("Stopping service", name);
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break;
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case RC_HOOK_SERVICE_STOP_DONE:
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retval |= ply_update("SERVICE_STOP_DONE", name);
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break;
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case RC_HOOK_ABORT:
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break;
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default:
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break;
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}
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exit:
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#ifdef DEBUG
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fwrite("\n", 1, 1, dbg);
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fclose(dbg);
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#endif
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free(runlevel);
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return retval;
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}
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