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-rw-r--r--src/daemon/main.c664
1 files changed, 460 insertions, 204 deletions
diff --git a/src/daemon/main.c b/src/daemon/main.c
index 5d77282c..14594416 100644
--- a/src/daemon/main.c
+++ b/src/daemon/main.c
@@ -1,18 +1,19 @@
-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> 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
@@ -30,7 +31,6 @@
#include <stdio.h>
#include <signal.h>
#include <stddef.h>
-#include <assert.h>
#include <ltdl.h>
#include <limits.h>
#include <fcntl.h>
@@ -56,13 +56,16 @@
#include <tcpd.h>
#endif
-#include "../pulsecore/winsock.h"
+#ifdef HAVE_DBUS
+#include <dbus/dbus.h>
+#endif
#include <pulse/mainloop.h>
#include <pulse/mainloop-signal.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
+#include <pulsecore/winsock.h>
#include <pulsecore/core-error.h>
#include <pulsecore/core.h>
#include <pulsecore/memblock.h>
@@ -75,12 +78,23 @@
#include <pulsecore/pid.h>
#include <pulsecore/namereg.h>
#include <pulsecore/random.h>
+#include <pulsecore/rtsig.h>
+#include <pulsecore/rtclock.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/mutex.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/once.h>
+#include <pulsecore/shm.h>
#include "cmdline.h"
#include "cpulimit.h"
#include "daemon-conf.h"
#include "dumpmodules.h"
#include "caps.h"
+#include "ltdl-bind-now.h"
+#include "polkit.h"
+
+#define AUTOSPAWN_LOCK "autospawn.lock"
#ifdef HAVE_LIBWRAP
/* Only one instance of these variables */
@@ -101,7 +115,7 @@ static void message_cb(pa_mainloop_api*a, pa_time_event*e, PA_GCC_UNUSED const s
MSG msg;
struct timeval tvnext;
- while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
+ while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT)
raise(SIGTERM);
else {
@@ -117,7 +131,7 @@ static void message_cb(pa_mainloop_api*a, pa_time_event*e, PA_GCC_UNUSED const s
#endif
static void signal_callback(pa_mainloop_api*m, PA_GCC_UNUSED pa_signal_event *e, int sig, void *userdata) {
- pa_log_info("Got signal %s.", pa_strsignal(sig));
+ pa_log_info("Got signal %s.", pa_sig2str(sig));
switch (sig) {
#ifdef SIGUSR1
@@ -125,7 +139,7 @@ static void signal_callback(pa_mainloop_api*m, PA_GCC_UNUSED pa_signal_event *e,
pa_module_load(userdata, "module-cli", NULL);
break;
#endif
-
+
#ifdef SIGUSR2
case SIGUSR2:
pa_module_load(userdata, "module-cli-protocol-unix", NULL);
@@ -150,16 +164,6 @@ static void signal_callback(pa_mainloop_api*m, PA_GCC_UNUSED pa_signal_event *e,
}
}
-static void close_pipe(int p[2]) {
- if (p[0] != -1)
- close(p[0]);
- if (p[1] != -1)
- close(p[1]);
- p[0] = p[1] = -1;
-}
-
-#define set_env(key, value) putenv(pa_sprintf_malloc("%s=%s", (key), (value)))
-
#if defined(HAVE_PWD_H) && defined(HAVE_GRP_H)
static int change_user(void) {
@@ -170,7 +174,7 @@ static int change_user(void) {
/* 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;
@@ -197,7 +201,14 @@ static int change_user(void) {
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;
@@ -235,13 +246,15 @@ static int change_user(void) {
return -1;
}
- set_env("USER", PA_SYSTEM_USER);
- set_env("LOGNAME", PA_SYSTEM_GROUP);
- set_env("HOME", PA_SYSTEM_RUNTIME_PATH);
+ 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() */
- set_env("PULSE_RUNTIME_PATH", PA_SYSTEM_RUNTIME_PATH);
- set_env("PULSE_CONFIG_PATH", PA_SYSTEM_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.");
@@ -257,51 +270,57 @@ static int change_user(void) {
#endif /* HAVE_PWD_H && HAVE_GRP_H */
-static int create_runtime_dir(void) {
- char fn[PATH_MAX];
-
- pa_runtime_path(NULL, fn, sizeof(fn));
-
- /* This function is called only when the daemon is started in
- * per-user mode. We create the runtime directory somewhere in
- * /tmp/ with the current UID/GID */
-
- if (pa_make_secure_dir(fn, 0700, (uid_t)-1, (gid_t)-1) < 0) {
- pa_log("Failed to create '%s': %s", fn, pa_cstrerror(errno));
- return -1;
- }
-
- return 0;
-}
-
#ifdef HAVE_SYS_RESOURCE_H
-static void set_one_rlimit(const pa_rlimit *r, int resource, const char *name) {
+static int set_one_rlimit(const pa_rlimit *r, int resource, const char *name) {
struct rlimit rl;
- assert(r);
+ pa_assert(r);
if (!r->is_set)
- return;
+ return 0;
rl.rlim_cur = rl.rlim_max = r->value;
- if (setrlimit(resource, &rl) < 0)
- pa_log_warn("setrlimit(%s, (%u, %u)) failed: %s", name, (unsigned) r->value, (unsigned) r->value, pa_cstrerror(errno));
+ 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_as, RLIMIT_AS, "RLIMIT_AS");
- set_one_rlimit(&conf->rlimit_core, RLIMIT_CORE, "RLIMIT_CORE");
- set_one_rlimit(&conf->rlimit_data, RLIMIT_DATA, "RLIMIT_DATA");
set_one_rlimit(&conf->rlimit_fsize, RLIMIT_FSIZE, "RLIMIT_FSIZE");
- set_one_rlimit(&conf->rlimit_nofile, RLIMIT_NOFILE, "RLIMIT_NOFILE");
+ 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
+ set_one_rlimit(&conf->rlimit_nofile, RLIMIT_NOFILE, "RLIMIT_NOFILE");
#ifdef RLIMIT_MEMLOCK
set_one_rlimit(&conf->rlimit_memlock, RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK");
#endif
+ set_one_rlimit(&conf->rlimit_as, RLIMIT_AS, "RLIMIT_AS");
+#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
@@ -310,57 +329,89 @@ int main(int argc, char *argv[]) {
pa_strbuf *buf = NULL;
pa_daemon_conf *conf = NULL;
pa_mainloop *mainloop = NULL;
-
- char *s;
- int r, retval = 1, d = 0;
- int daemon_pipe[2] = { -1, -1 };
- int suid_root, real_root;
- int valid_pid_file = 0;
-
-#ifdef HAVE_GETUID
+ 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 *timer;
- struct timeval tv;
+ pa_time_event *win32_timer;
+ struct timeval win32_tv;
#endif
+ char *lf = NULL;
+ int autospawn_lock_fd = -1;
- setlocale(LC_ALL, "");
+#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;
- pa_limit_caps();
+ /* We have to execute ourselves, because the libc caches the
+ * value of $LD_BIND_NOW on initialization. */
+
+ pa_set_env("LD_BIND_NOW", "1");
+ pa_assert_se(rp = pa_readlink("/proc/self/exe"));
+ pa_assert_se(execv(rp, argv) == 0);
+ }
+#endif
#ifdef HAVE_GETUID
real_root = getuid() == 0;
suid_root = !real_root && geteuid() == 0;
-
- if (suid_root && (pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) <= 0 || gid >= 1000)) {
- pa_log_warn("WARNING: called SUID root, but not in group '"PA_REALTIME_GROUP"'.");
- pa_drop_root();
- }
#else
- real_root = 0;
- suid_root = 0;
+ real_root = FALSE;
+ suid_root = FALSE;
#endif
-
- LTDL_SET_PRELOADED_SYMBOLS();
-
- r = lt_dlinit();
- assert(r == 0);
-#ifdef OS_IS_WIN32
- {
- WSADATA data;
- WSAStartup(MAKEWORD(2, 0), &data);
+ if (!real_root) {
+ /* Drop all capabilities except CAP_SYS_NICE */
+ pa_limit_caps();
+
+ /* Drop priviliges, 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. */
}
-#endif
- pa_random_seed();
-
+ 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_log_set_maximal_level(PA_LOG_INFO);
pa_log_set_ident("pulseaudio");
-
+
conf = pa_daemon_conf_new();
-
+
if (pa_daemon_conf_load(conf, NULL) < 0)
goto finish;
@@ -368,24 +419,140 @@ int main(int argc, char *argv[]) {
goto finish;
if (pa_cmdline_parse(conf, argc, argv, &d) < 0) {
- pa_log("failed to parse command line.");
+ pa_log("Failed to parse command line.");
goto finish;
}
pa_log_set_maximal_level(conf->log_level);
pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target, NULL);
- if (conf->high_priority && conf->cmd == PA_CMD_DAEMON)
- pa_raise_priority();
+ pa_log_debug("Started as real root: %s, suid root: %s", pa_yes_no(real_root), pa_yes_no(suid_root));
- pa_drop_caps();
+ if (!real_root && pa_have_caps()) {
+ pa_bool_t allow_high_priority = FALSE, allow_realtime = FALSE;
- if (suid_root)
- pa_drop_root();
+ /* 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 '"PA_REALTIME_GROUP"', allowing high-priority scheduling.");
+ 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 '"PA_REALTIME_GROUP"', allowing real-time scheduling.");
+ 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();
+
+ if (conf->high_priority || conf->realtime_scheduling)
+ pa_log_notice("Called SUID root and real-time/high-priority scheduling was requested in the configuration. However, we lack the necessary priviliges:\n"
+ "We are not in group '"PA_REALTIME_GROUP"' and PolicyKit refuse to grant us priviliges. Dropping SUID again.\n"
+ "For enabling real-time scheduling please acquire the appropriate PolicyKit priviliges, or become a member of '"PA_REALTIME_GROUP"', or increase the RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user.");
+ }
+ }
+
+#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.");
+
+ if (conf->high_priority && (conf->cmd == PA_CMD_DAEMON || conf->cmd == PA_CMD_START))
+ pa_raise_priority(conf->nice_level);
+
+ if (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.");
+
+ 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);
@@ -400,6 +567,16 @@ int main(int argc, char *argv[]) {
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));
+
+ goto finish;
+ }
+
case PA_CMD_HELP :
pa_cmdline_help(argv[0]);
retval = 0;
@@ -413,10 +590,10 @@ int main(int argc, char *argv[]) {
case PA_CMD_CHECK: {
pid_t pid;
- if (pa_pid_file_check_running(&pid) < 0) {
- pa_log_info("daemon not running");
- } else {
- pa_log_info("daemon running as PID %u", 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;
}
@@ -425,64 +602,92 @@ int main(int argc, char *argv[]) {
}
case PA_CMD_KILL:
- if (pa_pid_file_kill(SIGINT, NULL) < 0)
- pa_log("failed to kill daemon.");
+ if (pa_pid_file_kill(SIGINT, NULL, "pulseaudio") < 0)
+ pa_log("Failed to kill daemon.");
else
retval = 0;
-
+
goto finish;
-
+
+ case PA_CMD_CLEANUP_SHM:
+
+ if (pa_shm_cleanup() >= 0)
+ retval = 0;
+
+ goto finish;
+
default:
- assert(conf->cmd == PA_CMD_DAEMON);
+ pa_assert(conf->cmd == PA_CMD_DAEMON || conf->cmd == PA_CMD_START);
}
- if (real_root && !conf->system_instance) {
+ 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) {
+ else if (!real_root && conf->system_instance) {
pa_log("Root priviliges required.");
goto finish;
}
+ 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. */
+
+ lf = pa_runtime_path(AUTOSPAWN_LOCK);
+ autospawn_lock_fd = pa_lock_lockfile(lf);
+ }
+
if (conf->daemonize) {
pid_t child;
int tty_fd;
if (pa_stdio_acquire() < 0) {
- pa_log("failed to acquire stdio.");
+ pa_log("Failed to acquire stdio.");
goto finish;
}
#ifdef HAVE_FORK
if (pipe(daemon_pipe) < 0) {
- pa_log("failed to create pipe.");
+ 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 */
- close(daemon_pipe[1]);
+ pa_assert_se(pa_close(daemon_pipe[1]) == 0);
daemon_pipe[1] = -1;
- if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval), NULL) != sizeof(retval)) {
- pa_log("read() failed: %s", pa_cstrerror(errno));
+ 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.");
+ pa_log("Daemon startup failed.");
else
- pa_log_info("daemon startup successful.");
-
+ pa_log_info("Daemon startup successful.");
+
goto finish;
}
- close(daemon_pipe[0]);
+ if (autospawn_lock_fd >= 0) {
+ /* The lock file is unlocked from the parent, so we need
+ * to close it in the child */
+
+ pa_close(autospawn_lock_fd);
+ autospawn_lock_fd = -1;
+ }
+
+ pa_assert_se(pa_close(daemon_pipe[0]) == 0);
daemon_pipe[0] = -1;
#endif
@@ -497,13 +702,13 @@ int main(int argc, char *argv[]) {
#endif
#ifndef OS_IS_WIN32
- close(0);
- close(1);
- close(2);
+ pa_close(0);
+ pa_close(1);
+ pa_close(2);
- open("/dev/null", O_RDONLY);
- open("/dev/null", O_WRONLY);
- open("/dev/null", O_WRONLY);
+ 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
@@ -517,60 +722,95 @@ int main(int argc, char *argv[]) {
#ifdef SIGTSTP
signal(SIGTSTP, SIG_IGN);
#endif
-
+
#ifdef TIOCNOTTY
if ((tty_fd = open("/dev/tty", O_RDWR)) >= 0) {
ioctl(tty_fd, TIOCNOTTY, (char*) 0);
- close(tty_fd);
+ pa_assert_se(pa_close(tty_fd) == 0);
}
#endif
}
- chdir("/");
+ pa_set_env("PULSE_INTERNAL", "1");
+ pa_assert_se(chdir("/") == 0);
umask(0022);
-
- if (conf->system_instance) {
+
+ if (conf->system_instance)
if (change_user() < 0)
goto finish;
- } else if (create_runtime_dir() < 0)
+
+ pa_set_env("PULSE_SYSTEM", conf->system_instance ? "1" : "0");
+
+ pa_log_info("This is PulseAudio " PACKAGE_VERSION);
+ pa_log_info("Page size is %lu bytes", (unsigned long) PA_PAGE_SIZE);
+ 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()))
+ 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) {
- if (pa_pid_file_create() < 0) {
+ 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. */
+
+ pa_log_info("z=%i rock!", z);
+
+ retval = 0;
+ goto finish;
+ }
+
pa_log("pa_pid_file_create() failed.");
-#ifdef HAVE_FORK
- if (conf->daemonize)
- pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
-#endif
goto finish;
}
- valid_pid_file = 1;
+ valid_pid_file = TRUE;
}
-#ifdef HAVE_SYS_RESOURCE_H
- set_all_rlimits(conf);
-#endif
-
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN);
#endif
- mainloop = pa_mainloop_new();
- assert(mainloop);
+ 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!");
+
+#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))) {
- pa_log("pa_core_new() failed.");
+ pa_log("pa_core_new() failed.");
goto finish;
}
- c->is_system_instance = !!conf->system_instance;
-
- r = pa_signal_init(pa_mainloop_get_api(mainloop));
- assert(r == 0);
+ c->default_sample_spec = conf->default_sample_spec;
+ 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->module_idle_time = conf->module_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->running_as_daemon = !!conf->daemonize;
+
+ 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
@@ -580,84 +820,97 @@ int main(int argc, char *argv[]) {
#ifdef SIGHUP
pa_signal_new(SIGHUP, signal_callback, c);
#endif
-
+
#ifdef OS_IS_WIN32
- timer = pa_mainloop_get_api(mainloop)->time_new(
- pa_mainloop_get_api(mainloop), pa_gettimeofday(&tv), message_cb, NULL);
- assert(timer);
+ win32_timer = pa_mainloop_get_api(mainloop)->time_new(pa_mainloop_get_api(mainloop), pa_gettimeofday(&win32_tv), message_cb, NULL);
#endif
- if (conf->daemonize)
- c->running_as_daemon = 1;
-
oil_init();
- if (!conf->no_cpu_limit) {
- r = pa_cpu_limit_init(pa_mainloop_get_api(mainloop));
- assert(r == 0);
- }
-
+ if (!conf->no_cpu_limit)
+ pa_assert_se(pa_cpu_limit_init(pa_mainloop_get_api(mainloop)) == 0);
+
buf = pa_strbuf_new();
- if (conf->default_script_file)
- r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail);
+ 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.");
-#ifdef HAVE_FORK
- if (conf->daemonize)
- pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
-#endif
- } else if (!c->modules || pa_idxset_size(c->modules) == 0) {
- pa_log("daemon startup without any loaded modules, refusing to work.");
-#ifdef HAVE_FORK
- if (conf->daemonize)
- pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
-#endif
- } else {
+ 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;
+ }
+
+ if (c->default_sink_name && !pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, TRUE) && conf->fail) {
+ pa_log_error("Default sink name (%s) does not exist in name register.", c->default_sink_name);
+ goto finish;
+ }
- retval = 0;
#ifdef HAVE_FORK
- if (conf->daemonize)
- pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
-#endif
-
- c->disallow_module_loading = conf->disallow_module_loading;
- c->exit_idle_time = conf->exit_idle_time;
- c->module_idle_time = conf->module_idle_time;
- c->scache_idle_time = conf->scache_idle_time;
- c->resample_method = conf->resample_method;
-
- if (c->default_sink_name &&
- pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, 1) == NULL) {
- pa_log_error("%s : Fatal error. Default sink name (%s) does not exist in name register.", __FILE__, c->default_sink_name);
- retval = 1;
- } else {
- pa_log_info("Daemon startup complete.");
- if (pa_mainloop_run(mainloop, &retval) < 0)
- retval = 1;
- pa_log_info("Daemon shutdown initiated.");
- }
+ 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_lock_fd >= 0)
+ pa_unlock_lockfile(lf, autospawn_lock_fd);
+
+ if (lf)
+ pa_xfree(lf);
#ifdef OS_IS_WIN32
- pa_mainloop_get_api(mainloop)->time_free(timer);
+ if (win32_timer)
+ pa_mainloop_get_api(mainloop)->time_free(win32_timer);
#endif
- pa_core_free(c);
+ if (c) {
+ pa_core_unref(c);
+ pa_log_info("Daemon terminated.");
+ }
if (!conf->no_cpu_limit)
pa_cpu_limit_done();
-
+
pa_signal_done();
-
- pa_log_info("Daemon terminated.");
-
-finish:
+
+#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);
@@ -667,14 +920,17 @@ finish:
if (valid_pid_file)
pa_pid_file_remove();
-
- close_pipe(daemon_pipe);
#ifdef OS_IS_WIN32
WSACleanup();
#endif
- lt_dlexit();
-
+ if (ltdl_init)
+ pa_ltdl_done();
+
+#ifdef HAVE_DBUS
+ dbus_shutdown();
+#endif
+
return retval;
}
generated by cgit (git 2.34.1) at 2025-07-14 02:33:58 +0000