/*** This file is part of PulseAudio. Copyright 2004-2006 Lennart Poettering Copyright 2006 Pierre Ossman for Cendio AB PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ***/ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_PWD_H #include #endif #ifdef HAVE_GRP_H #include #endif #ifdef HAVE_LIBWRAP #include #include #endif #ifdef HAVE_DBUS #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "cmdline.h" #include "cpulimit.h" #include "daemon-conf.h" #include "dumpmodules.h" #include "caps.h" #include "ltdl-bind-now.h" #include "polkit.h" #ifdef HAVE_LIBWRAP /* Only one instance of these variables */ int allow_severity = LOG_INFO; int deny_severity = LOG_WARNING; #endif #ifdef HAVE_OSS /* padsp looks for this symbol in the running process and disables * itself if it finds it and it is set to 7 (which is actually a bit * mask). For details see padsp. */ int __padsp_disabled__ = 7; #endif #ifdef OS_IS_WIN32 static void message_cb(pa_mainloop_api*a, pa_time_event*e, const struct timeval *tv, void *userdata) { MSG msg; struct timeval tvnext; while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { if (msg.message == WM_QUIT) raise(SIGTERM); else { TranslateMessage(&msg); DispatchMessage(&msg); } } pa_timeval_add(pa_gettimeofday(&tvnext), 100000); a->time_restart(e, &tvnext); } #endif static void signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) { pa_log_info(_("Got signal %s."), pa_sig2str(sig)); switch (sig) { #ifdef SIGUSR1 case SIGUSR1: pa_module_load(userdata, "module-cli", NULL); break; #endif #ifdef SIGUSR2 case SIGUSR2: pa_module_load(userdata, "module-cli-protocol-unix", NULL); break; #endif #ifdef SIGHUP case SIGHUP: { char *c = pa_full_status_string(userdata); pa_log_notice("%s", c); pa_xfree(c); return; } #endif case SIGINT: case SIGTERM: default: pa_log_info(_("Exiting.")); m->quit(m, 1); break; } } #if defined(HAVE_PWD_H) && defined(HAVE_GRP_H) static int change_user(void) { struct passwd *pw; struct group * gr; int r; /* This function is called only in system-wide mode. It creates a * runtime dir in /var/run/ with proper UID/GID and drops privs * afterwards. */ if (!(pw = getpwnam(PA_SYSTEM_USER))) { pa_log(_("Failed to find user '%s'."), PA_SYSTEM_USER); return -1; } if (!(gr = getgrnam(PA_SYSTEM_GROUP))) { pa_log(_("Failed to find group '%s'."), PA_SYSTEM_GROUP); return -1; } pa_log_info(_("Found user '%s' (UID %lu) and group '%s' (GID %lu)."), PA_SYSTEM_USER, (unsigned long) pw->pw_uid, PA_SYSTEM_GROUP, (unsigned long) gr->gr_gid); if (pw->pw_gid != gr->gr_gid) { pa_log(_("GID of user '%s' and of group '%s' don't match."), PA_SYSTEM_USER, PA_SYSTEM_GROUP); return -1; } if (strcmp(pw->pw_dir, PA_SYSTEM_RUNTIME_PATH) != 0) pa_log_warn(_("Home directory of user '%s' is not '%s', ignoring."), PA_SYSTEM_USER, PA_SYSTEM_RUNTIME_PATH); if (pa_make_secure_dir(PA_SYSTEM_RUNTIME_PATH, 0755, pw->pw_uid, gr->gr_gid) < 0) { pa_log(_("Failed to create '%s': %s"), PA_SYSTEM_RUNTIME_PATH, pa_cstrerror(errno)); return -1; } if (pa_make_secure_dir(PA_SYSTEM_STATE_PATH, 0700, pw->pw_uid, gr->gr_gid) < 0) { pa_log(_("Failed to create '%s': %s"), PA_SYSTEM_STATE_PATH, pa_cstrerror(errno)); return -1; } /* We don't create the config dir here, because we don't need to write to it */ if (initgroups(PA_SYSTEM_USER, gr->gr_gid) != 0) { pa_log(_("Failed to change group list: %s"), pa_cstrerror(errno)); return -1; } #if defined(HAVE_SETRESGID) r = setresgid(gr->gr_gid, gr->gr_gid, gr->gr_gid); #elif defined(HAVE_SETEGID) if ((r = setgid(gr->gr_gid)) >= 0) r = setegid(gr->gr_gid); #elif defined(HAVE_SETREGID) r = setregid(gr->gr_gid, gr->gr_gid); #else #error "No API to drop privileges" #endif if (r < 0) { pa_log(_("Failed to change GID: %s"), pa_cstrerror(errno)); return -1; } #if defined(HAVE_SETRESUID) r = setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid); #elif defined(HAVE_SETEUID) if ((r = setuid(pw->pw_uid)) >= 0) r = seteuid(pw->pw_uid); #elif defined(HAVE_SETREUID) r = setreuid(pw->pw_uid, pw->pw_uid); #else #error "No API to drop privileges" #endif if (r < 0) { pa_log(_("Failed to change UID: %s"), pa_cstrerror(errno)); return -1; } pa_set_env("USER", PA_SYSTEM_USER); pa_set_env("USERNAME", PA_SYSTEM_USER); pa_set_env("LOGNAME", PA_SYSTEM_USER); pa_set_env("HOME", PA_SYSTEM_RUNTIME_PATH); /* Relevant for pa_runtime_path() */ pa_set_env("PULSE_RUNTIME_PATH", PA_SYSTEM_RUNTIME_PATH); pa_set_env("PULSE_CONFIG_PATH", PA_SYSTEM_CONFIG_PATH); pa_set_env("PULSE_STATE_PATH", PA_SYSTEM_STATE_PATH); pa_log_info(_("Successfully dropped root privileges.")); return 0; } #else /* HAVE_PWD_H && HAVE_GRP_H */ static int change_user(void) { pa_log(_("System wide mode unsupported on this platform.")); return -1; } #endif /* HAVE_PWD_H && HAVE_GRP_H */ #ifdef HAVE_SYS_RESOURCE_H static int set_one_rlimit(const pa_rlimit *r, int resource, const char *name) { struct rlimit rl; pa_assert(r); if (!r->is_set) return 0; rl.rlim_cur = rl.rlim_max = r->value; if (setrlimit(resource, &rl) < 0) { pa_log_info(_("setrlimit(%s, (%u, %u)) failed: %s"), name, (unsigned) r->value, (unsigned) r->value, pa_cstrerror(errno)); return -1; } return 0; } static void set_all_rlimits(const pa_daemon_conf *conf) { set_one_rlimit(&conf->rlimit_fsize, RLIMIT_FSIZE, "RLIMIT_FSIZE"); set_one_rlimit(&conf->rlimit_data, RLIMIT_DATA, "RLIMIT_DATA"); set_one_rlimit(&conf->rlimit_stack, RLIMIT_STACK, "RLIMIT_STACK"); set_one_rlimit(&conf->rlimit_core, RLIMIT_CORE, "RLIMIT_CORE"); set_one_rlimit(&conf->rlimit_rss, RLIMIT_RSS, "RLIMIT_RSS"); #ifdef RLIMIT_NPROC set_one_rlimit(&conf->rlimit_nproc, RLIMIT_NPROC, "RLIMIT_NPROC"); #endif #ifdef RLIMIT_NOFILE set_one_rlimit(&conf->rlimit_nofile, RLIMIT_NOFILE, "RLIMIT_NOFILE"); #endif #ifdef RLIMIT_MEMLOCK set_one_rlimit(&conf->rlimit_memlock, RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK"); #endif #ifdef RLIMIT_AS set_one_rlimit(&conf->rlimit_as, RLIMIT_AS, "RLIMIT_AS"); #endif #ifdef RLIMIT_LOCKS set_one_rlimit(&conf->rlimit_locks, RLIMIT_LOCKS, "RLIMIT_LOCKS"); #endif #ifdef RLIMIT_SIGPENDING set_one_rlimit(&conf->rlimit_sigpending, RLIMIT_SIGPENDING, "RLIMIT_SIGPENDING"); #endif #ifdef RLIMIT_MSGQUEUE set_one_rlimit(&conf->rlimit_msgqueue, RLIMIT_MSGQUEUE, "RLIMIT_MSGQUEUE"); #endif #ifdef RLIMIT_NICE set_one_rlimit(&conf->rlimit_nice, RLIMIT_NICE, "RLIMIT_NICE"); #endif #ifdef RLIMIT_RTPRIO set_one_rlimit(&conf->rlimit_rtprio, RLIMIT_RTPRIO, "RLIMIT_RTPRIO"); #endif #ifdef RLIMIT_RTTIME set_one_rlimit(&conf->rlimit_rttime, RLIMIT_RTTIME, "RLIMIT_RTTIME"); #endif } #endif int main(int argc, char *argv[]) { pa_core *c = NULL; pa_strbuf *buf = NULL; pa_daemon_conf *conf = NULL; pa_mainloop *mainloop = NULL; char *s; int r = 0, retval = 1, d = 0; pa_bool_t suid_root, real_root; pa_bool_t valid_pid_file = FALSE; gid_t gid = (gid_t) -1; pa_bool_t ltdl_init = FALSE; int passed_fd = -1; const char *e; #ifdef HAVE_FORK int daemon_pipe[2] = { -1, -1 }; #endif #ifdef OS_IS_WIN32 pa_time_event *win32_timer; struct timeval win32_tv; #endif int autospawn_fd = -1; pa_bool_t autospawn_locked = FALSE; pa_log_set_ident("pulseaudio"); pa_log_set_level(PA_LOG_INFO); pa_log_set_flags(PA_LOG_COLORS|PA_LOG_PRINT_FILE|PA_LOG_PRINT_LEVEL, PA_LOG_RESET); #if defined(__linux__) && defined(__OPTIMIZE__) /* Disable lazy relocations to make usage of external libraries more deterministic for our RT threads. We abuse __OPTIMIZE__ as a check whether we are a debug build or not. */ if (!getenv("LD_BIND_NOW")) { char *rp; /* We have to execute ourselves, because the libc caches the * value of $LD_BIND_NOW on initialization. */ pa_set_env("LD_BIND_NOW", "1"); if ((rp = pa_readlink("/proc/self/exe"))) pa_assert_se(execv(rp, argv) == 0); else pa_log_warn("Couldn't read /proc/self/exe, cannot self execute. Running in a chroot()?"); } #endif #ifdef HAVE_GETUID real_root = getuid() == 0; suid_root = !real_root && geteuid() == 0; #else real_root = FALSE; suid_root = FALSE; #endif if (!real_root) { /* Drop all capabilities except CAP_SYS_NICE */ pa_limit_caps(); /* Drop privileges, but keep CAP_SYS_NICE */ pa_drop_root(); /* After dropping root, the effective set is reset, hence, * let's raise it again */ pa_limit_caps(); /* When capabilities are not supported we will not be able to * aquire RT sched anymore. But yes, that's the way it is. It * is just too risky tun let PA run as root all the time. */ } if ((e = getenv("PULSE_PASSED_FD"))) { passed_fd = atoi(e); if (passed_fd <= 2) passed_fd = -1; } pa_close_all(passed_fd, -1); pa_reset_sigs(-1); pa_unblock_sigs(-1); /* At this point, we are a normal user, possibly with CAP_NICE if * we were started SUID. If we are started as normal root, than we * still are normal root. */ setlocale(LC_ALL, ""); pa_init_i18n(); conf = pa_daemon_conf_new(); if (pa_daemon_conf_load(conf, NULL) < 0) goto finish; if (pa_daemon_conf_env(conf) < 0) goto finish; if (pa_cmdline_parse(conf, argc, argv, &d) < 0) { pa_log(_("Failed to parse command line.")); goto finish; } pa_log_set_level(conf->log_level); pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target); if (conf->log_meta) pa_log_set_flags(PA_LOG_PRINT_META, PA_LOG_SET); if (conf->log_time) pa_log_set_flags(PA_LOG_PRINT_TIME, PA_LOG_SET); pa_log_set_show_backtrace(conf->log_backtrace); pa_log_debug("Started as real root: %s, suid root: %s", pa_yes_no(real_root), pa_yes_no(suid_root)); if (!real_root && pa_have_caps()) { #ifdef HAVE_SYS_RESOURCE_H struct rlimit rl; #endif pa_bool_t allow_high_priority = FALSE, allow_realtime = FALSE; /* Let's better not enable high prio or RT by default */ if (conf->high_priority && !allow_high_priority) { if (pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) > 0) { pa_log_info(_("We're in the group '%s', allowing high-priority scheduling."), PA_REALTIME_GROUP); allow_high_priority = TRUE; } } if (conf->realtime_scheduling && !allow_realtime) { if (pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) > 0) { pa_log_info(_("We're in the group '%s', allowing real-time scheduling."), PA_REALTIME_GROUP); allow_realtime = TRUE; } } #ifdef HAVE_POLKIT if (conf->high_priority && !allow_high_priority) { if (pa_polkit_check("org.pulseaudio.acquire-high-priority") > 0) { pa_log_info(_("PolicyKit grants us acquire-high-priority privilege.")); allow_high_priority = TRUE; } else pa_log_info(_("PolicyKit refuses acquire-high-priority privilege.")); } if (conf->realtime_scheduling && !allow_realtime) { if (pa_polkit_check("org.pulseaudio.acquire-real-time") > 0) { pa_log_info(_("PolicyKit grants us acquire-real-time privilege.")); allow_realtime = TRUE; } else pa_log_info(_("PolicyKit refuses acquire-real-time privilege.")); } #endif if (!allow_high_priority && !allow_realtime) { /* OK, there's no further need to keep CAP_NICE. Hence * let's give it up early */ pa_drop_caps(); } #ifdef RLIMIT_RTPRIO if (getrlimit(RLIMIT_RTPRIO, &rl) >= 0) if (rl.rlim_cur > 0) { pa_log_info("RLIMIT_RTPRIO is set to %u, allowing real-time scheduling.", (unsigned) rl.rlim_cur); allow_realtime = TRUE; } #endif #ifdef RLIMIT_NICE if (getrlimit(RLIMIT_NICE, &rl) >= 0) if (rl.rlim_cur > 20 ) { pa_log_info("RLIMIT_NICE is set to %u, allowing high-priority scheduling.", (unsigned) rl.rlim_cur); allow_high_priority = TRUE; } #endif if ((conf->high_priority && !allow_high_priority) || (conf->realtime_scheduling && !allow_realtime)) pa_log_notice(_("Called SUID root and real-time and/or high-priority scheduling was requested in the configuration. However, we lack the necessary privileges:\n" "We are not in group '%s', PolicyKit refuse to grant us the requested privileges and we have no increase RLIMIT_NICE/RLIMIT_RTPRIO resource limits.\n" "For enabling real-time/high-priority scheduling please acquire the appropriate PolicyKit privileges, or become a member of '%s', or increase the RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user."), PA_REALTIME_GROUP, PA_REALTIME_GROUP); if (!allow_realtime) conf->realtime_scheduling = FALSE; if (!allow_high_priority) conf->high_priority = FALSE; } #ifdef HAVE_SYS_RESOURCE_H /* Reset resource limits. If we are run as root (for system mode) * this might end up increasing the limits, which is intended * behaviour. For all other cases, i.e. started as normal user, or * SUID root at this point we should have no CAP_SYS_RESOURCE and * increasing the limits thus should fail. Which is, too, intended * behaviour */ set_all_rlimits(conf); #endif if (conf->high_priority && !pa_can_high_priority()) { pa_log_warn(_("High-priority scheduling enabled in configuration but not allowed by policy.")); conf->high_priority = FALSE; } if (conf->high_priority && (conf->cmd == PA_CMD_DAEMON || conf->cmd == PA_CMD_START)) pa_raise_priority(conf->nice_level); pa_log_debug("Can realtime: %s, can high-priority: %s", pa_yes_no(pa_can_realtime()), pa_yes_no(pa_can_high_priority())); if (!real_root && pa_have_caps()) { pa_bool_t drop; drop = (conf->cmd != PA_CMD_DAEMON && conf->cmd != PA_CMD_START) || !conf->realtime_scheduling; #ifdef RLIMIT_RTPRIO if (!drop) { struct rlimit rl; /* At this point we still have CAP_NICE if we were loaded * SUID root. If possible let's acquire RLIMIT_RTPRIO * instead and give CAP_NICE up. */ if (getrlimit(RLIMIT_RTPRIO, &rl) >= 0) { if (rl.rlim_cur >= 9) drop = TRUE; else { rl.rlim_max = rl.rlim_cur = 9; if (setrlimit(RLIMIT_RTPRIO, &rl) >= 0) { pa_log_info(_("Successfully increased RLIMIT_RTPRIO")); drop = TRUE; } else pa_log_warn(_("RLIMIT_RTPRIO failed: %s"), pa_cstrerror(errno)); } } } #endif if (drop) { pa_log_info(_("Giving up CAP_NICE")); pa_drop_caps(); suid_root = FALSE; } } if (conf->realtime_scheduling && !pa_can_realtime()) { pa_log_warn(_("Real-time scheduling enabled in configuration but not allowed by policy.")); conf->realtime_scheduling = FALSE; } pa_log_debug("Can realtime: %s, can high-priority: %s", pa_yes_no(pa_can_realtime()), pa_yes_no(pa_can_high_priority())); LTDL_SET_PRELOADED_SYMBOLS(); pa_ltdl_init(); ltdl_init = TRUE; if (conf->dl_search_path) lt_dlsetsearchpath(conf->dl_search_path); #ifdef OS_IS_WIN32 { WSADATA data; WSAStartup(MAKEWORD(2, 0), &data); } #endif pa_random_seed(); switch (conf->cmd) { case PA_CMD_DUMP_MODULES: pa_dump_modules(conf, argc-d, argv+d); retval = 0; goto finish; case PA_CMD_DUMP_CONF: { s = pa_daemon_conf_dump(conf); fputs(s, stdout); pa_xfree(s); retval = 0; goto finish; } case PA_CMD_DUMP_RESAMPLE_METHODS: { int i; for (i = 0; i < PA_RESAMPLER_MAX; i++) if (pa_resample_method_supported(i)) printf("%s\n", pa_resample_method_to_string(i)); retval = 0; goto finish; } case PA_CMD_HELP : pa_cmdline_help(argv[0]); retval = 0; goto finish; case PA_CMD_VERSION : printf(PACKAGE_NAME" "PACKAGE_VERSION"\n"); retval = 0; goto finish; case PA_CMD_CHECK: { pid_t pid; if (pa_pid_file_check_running(&pid, "pulseaudio") < 0) pa_log_info(_("Daemon not running")); else { pa_log_info(_("Daemon running as PID %u"), pid); retval = 0; } goto finish; } case PA_CMD_KILL: if (pa_pid_file_kill(SIGINT, NULL, "pulseaudio") < 0) pa_log(_("Failed to kill daemon: %s"), pa_cstrerror(errno)); else retval = 0; goto finish; case PA_CMD_CLEANUP_SHM: if (pa_shm_cleanup() >= 0) retval = 0; goto finish; default: pa_assert(conf->cmd == PA_CMD_DAEMON || conf->cmd == PA_CMD_START); } if (real_root && !conf->system_instance) pa_log_warn(_("This program is not intended to be run as root (unless --system is specified).")); else if (!real_root && conf->system_instance) { pa_log(_("Root privileges required.")); goto finish; } if (conf->cmd == PA_CMD_START && conf->system_instance) { pa_log(_("--start not supported for system instances.")); goto finish; } if (conf->system_instance && !conf->disallow_exit) pa_log_warn(_("Running in system mode, but --disallow-exit not set!")); if (conf->system_instance && !conf->disallow_module_loading) pa_log_warn(_("Running in system mode, but --disallow-module-loading not set!")); if (conf->system_instance && !conf->disable_shm) { pa_log_notice(_("Running in system mode, forcibly disabling SHM mode!")); conf->disable_shm = TRUE; } if (conf->system_instance && conf->exit_idle_time >= 0) { pa_log_notice(_("Running in system mode, forcibly disabling exit idle time!")); conf->exit_idle_time = -1; } if (conf->cmd == PA_CMD_START) { /* If we shall start PA only when it is not running yet, we * first take the autospawn lock to make things * synchronous. */ if ((autospawn_fd = pa_autospawn_lock_init()) < 0) { pa_log("Failed to initialize autospawn lock"); goto finish; } if ((pa_autospawn_lock_acquire(TRUE) < 0)) { pa_log("Failed to acquire autospawn lock"); goto finish; } autospawn_locked = TRUE; } if (conf->daemonize) { pid_t child; int tty_fd; if (pa_stdio_acquire() < 0) { pa_log(_("Failed to acquire stdio.")); goto finish; } #ifdef HAVE_FORK if (pipe(daemon_pipe) < 0) { pa_log(_("pipe failed: %s"), pa_cstrerror(errno)); goto finish; } if ((child = fork()) < 0) { pa_log(_("fork() failed: %s"), pa_cstrerror(errno)); goto finish; } if (child != 0) { ssize_t n; /* Father */ pa_assert_se(pa_close(daemon_pipe[1]) == 0); daemon_pipe[1] = -1; if ((n = pa_loop_read(daemon_pipe[0], &retval, sizeof(retval), NULL)) != sizeof(retval)) { if (n < 0) pa_log(_("read() failed: %s"), pa_cstrerror(errno)); retval = 1; } if (retval) pa_log(_("Daemon startup failed.")); else pa_log_info(_("Daemon startup successful.")); goto finish; } if (autospawn_fd >= 0) { /* The lock file is unlocked from the parent, so we need * to close it in the child */ pa_autospawn_lock_release(); pa_autospawn_lock_done(TRUE); autospawn_locked = FALSE; autospawn_fd = -1; } pa_assert_se(pa_close(daemon_pipe[0]) == 0); daemon_pipe[0] = -1; #endif if (conf->auto_log_target) pa_log_set_target(PA_LOG_SYSLOG); #ifdef HAVE_SETSID setsid(); #endif #ifdef HAVE_SETPGID setpgid(0,0); #endif #ifndef OS_IS_WIN32 pa_close(0); pa_close(1); pa_close(2); pa_assert_se(open("/dev/null", O_RDONLY) == 0); pa_assert_se(open("/dev/null", O_WRONLY) == 1); pa_assert_se(open("/dev/null", O_WRONLY) == 2); #else FreeConsole(); #endif #ifdef SIGTTOU signal(SIGTTOU, SIG_IGN); #endif #ifdef SIGTTIN signal(SIGTTIN, SIG_IGN); #endif #ifdef SIGTSTP signal(SIGTSTP, SIG_IGN); #endif #ifdef TIOCNOTTY if ((tty_fd = open("/dev/tty", O_RDWR)) >= 0) { ioctl(tty_fd, TIOCNOTTY, (char*) 0); pa_assert_se(pa_close(tty_fd) == 0); } #endif } pa_set_env("PULSE_INTERNAL", "1"); pa_assert_se(chdir("/") == 0); umask(0022); if (conf->system_instance) if (change_user() < 0) goto finish; pa_set_env("PULSE_SYSTEM", conf->system_instance ? "1" : "0"); pa_log_info(_("This is PulseAudio %s"), PACKAGE_VERSION); pa_log_debug(_("Compilation host: %s"), CANONICAL_HOST); pa_log_debug(_("Compilation CFLAGS: %s"), PA_CFLAGS); s = pa_uname_string(); pa_log_debug(_("Running on host: %s"), s); pa_xfree(s); pa_log_debug(_("Found %u CPUs."), pa_ncpus()); pa_log_info(_("Page size is %lu bytes"), (unsigned long) PA_PAGE_SIZE); #ifdef HAVE_VALGRIND_MEMCHECK_H pa_log_debug(_("Compiled with Valgrind support: yes")); #else pa_log_debug(_("Compiled with Valgrind support: no")); #endif pa_log_debug(_("Running in valgrind mode: %s"), pa_yes_no(pa_in_valgrind())); #ifdef __OPTIMIZE__ pa_log_debug(_("Optimized build: yes")); #else pa_log_debug(_("Optimized build: no")); #endif if (!(s = pa_machine_id())) { pa_log(_("Failed to get machine ID")); goto finish; } pa_log_info(_("Machine ID is %s."), s); pa_xfree(s); if (!(s = pa_get_runtime_dir())) goto finish; pa_log_info(_("Using runtime directory %s."), s); pa_xfree(s); if (!(s = pa_get_state_dir())) goto finish; pa_log_info(_("Using state directory %s."), s); pa_xfree(s); pa_log_info(_("Running in system mode: %s"), pa_yes_no(pa_in_system_mode())); if (conf->use_pid_file) { int z; if ((z = pa_pid_file_create("pulseaudio")) != 0) { if (conf->cmd == PA_CMD_START && z > 0) { /* If we are already running and with are run in * --start mode, then let's return this as success. */ retval = 0; goto finish; } pa_log(_("pa_pid_file_create() failed.")); goto finish; } valid_pid_file = TRUE; } #ifdef SIGPIPE signal(SIGPIPE, SIG_IGN); #endif if (pa_rtclock_hrtimer()) pa_log_info(_("Fresh high-resolution timers available! Bon appetit!")); else pa_log_info(_("Dude, your kernel stinks! The chef's recommendation today is Linux with high-resolution timers enabled!")); pa_rtclock_hrtimer_enable(); #ifdef SIGRTMIN /* Valgrind uses SIGRTMAX. To easy debugging we don't use it here */ pa_rtsig_configure(SIGRTMIN, SIGRTMAX-1); #endif pa_assert_se(mainloop = pa_mainloop_new()); if (!(c = pa_core_new(pa_mainloop_get_api(mainloop), !conf->disable_shm, conf->shm_size))) { pa_log(_("pa_core_new() failed.")); goto finish; } c->default_sample_spec = conf->default_sample_spec; c->default_channel_map = conf->default_channel_map; c->default_n_fragments = conf->default_n_fragments; c->default_fragment_size_msec = conf->default_fragment_size_msec; c->exit_idle_time = conf->exit_idle_time; c->scache_idle_time = conf->scache_idle_time; c->resample_method = conf->resample_method; c->realtime_priority = conf->realtime_priority; c->realtime_scheduling = !!conf->realtime_scheduling; c->disable_remixing = !!conf->disable_remixing; c->disable_lfe_remixing = !!conf->disable_lfe_remixing; c->running_as_daemon = !!conf->daemonize; c->disallow_exit = conf->disallow_exit; c->flat_volumes = conf->flat_volumes; pa_assert_se(pa_signal_init(pa_mainloop_get_api(mainloop)) == 0); pa_signal_new(SIGINT, signal_callback, c); pa_signal_new(SIGTERM, signal_callback, c); #ifdef SIGUSR1 pa_signal_new(SIGUSR1, signal_callback, c); #endif #ifdef SIGUSR2 pa_signal_new(SIGUSR2, signal_callback, c); #endif #ifdef SIGHUP pa_signal_new(SIGHUP, signal_callback, c); #endif #ifdef OS_IS_WIN32 win32_timer = pa_mainloop_get_api(mainloop)->time_new(pa_mainloop_get_api(mainloop), pa_gettimeofday(&win32_tv), message_cb, NULL); #endif oil_init(); if (!conf->no_cpu_limit) pa_assert_se(pa_cpu_limit_init(pa_mainloop_get_api(mainloop)) == 0); buf = pa_strbuf_new(); if (conf->load_default_script_file) { FILE *f; if ((f = pa_daemon_conf_open_default_script_file(conf))) { r = pa_cli_command_execute_file_stream(c, f, buf, &conf->fail); fclose(f); } } if (r >= 0) r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail); pa_log_error("%s", s = pa_strbuf_tostring_free(buf)); pa_xfree(s); /* We completed the initial module loading, so let's disable it * from now on, if requested */ c->disallow_module_loading = !!conf->disallow_module_loading; if (r < 0 && conf->fail) { pa_log(_("Failed to initialize daemon.")); goto finish; } if (!c->modules || pa_idxset_size(c->modules) == 0) { pa_log(_("Daemon startup without any loaded modules, refusing to work.")); goto finish; } #ifdef HAVE_FORK if (daemon_pipe[1] >= 0) { int ok = 0; pa_loop_write(daemon_pipe[1], &ok, sizeof(ok), NULL); pa_close(daemon_pipe[1]); daemon_pipe[1] = -1; } #endif pa_log_info(_("Daemon startup complete.")); retval = 0; if (pa_mainloop_run(mainloop, &retval) < 0) goto finish; pa_log_info(_("Daemon shutdown initiated.")); finish: if (autospawn_fd >= 0) { if (autospawn_locked) pa_autospawn_lock_release(); pa_autospawn_lock_done(FALSE); } #ifdef OS_IS_WIN32 if (win32_timer) pa_mainloop_get_api(mainloop)->time_free(win32_timer); #endif if (c) { pa_core_unref(c); pa_log_info(_("Daemon terminated.")); } if (!conf->no_cpu_limit) pa_cpu_limit_done(); pa_signal_done(); #ifdef HAVE_FORK if (daemon_pipe[1] >= 0) pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL); pa_close_pipe(daemon_pipe); #endif if (mainloop) pa_mainloop_free(mainloop); if (conf) pa_daemon_conf_free(conf); if (valid_pid_file) pa_pid_file_remove(); #ifdef OS_IS_WIN32 WSACleanup(); #endif if (ltdl_init) pa_ltdl_done(); #ifdef HAVE_DBUS dbus_shutdown(); #endif return retval; }