This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
+ 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.
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 General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
#include <ltdl.h>
#include <memblock.h>
+#ifdef HAVE_LIBWRAP
+#include <syslog.h>
+#include <tcpd.h>
+#endif
+
#include "core.h"
#include "mainloop.h"
#include "module.h"
#include "cli-command.h"
#include "util.h"
#include "sioman.h"
+#include "xmalloc.h"
+#include "cpulimit.h"
+#include "log.h"
+#include "daemon-conf.h"
+#include "dumpmodules.h"
+#include "caps.h"
+#include "cli-text.h"
-static struct pa_mainloop *mainloop;
+#ifdef HAVE_LIBWRAP
+/* Only one instance of these variables */
+int allow_severity = LOG_INFO;
+int deny_severity = LOG_WARNING;
+#endif
-static void exit_signal_callback(void *id, int sig, void *userdata) {
- struct pa_mainloop_api* m = pa_mainloop_get_api(mainloop);
- m->quit(m, 1);
- fprintf(stderr, __FILE__": got signal.\n");
-}
+static void signal_callback(struct pa_mainloop_api*m, struct pa_signal_event *e, int sig, void *userdata) {
+ pa_log(__FILE__": Got signal %s.\n", pa_strsignal(sig));
-static void aux_signal_callback(void *id, int sig, void *userdata) {
- struct pa_core *c = userdata;
- assert(c);
- pa_module_load(c, sig == SIGUSR1 ? "module-cli" : "module-cli-protocol-unix", NULL);
+ switch (sig) {
+ case SIGUSR1:
+ pa_module_load(userdata, "module-cli", NULL);
+ return;
+
+ case SIGUSR2:
+ pa_module_load(userdata, "module-cli-protocol-unix", NULL);
+ return;
+
+ case SIGHUP: {
+ int i;
+
+ for (i = 0;; i++) {
+ char *c;
+ switch (i) {
+ case 0:
+ c = pa_sink_list_to_string(userdata);
+ break;
+ case 1:
+ c = pa_source_list_to_string(userdata);
+ break;
+ case 2:
+ c = pa_sink_input_list_to_string(userdata);
+ break;
+ case 3:
+ c = pa_source_output_list_to_string(userdata);
+ break;
+ case 4:
+ c = pa_client_list_to_string(userdata);
+ break;
+ case 5:
+ c = pa_module_list_to_string(userdata);
+ break;
+ case 6:
+ c = pa_scache_list_to_string(userdata);
+ break;
+ case 7:
+ c = pa_autoload_list_to_string(userdata);
+ break;
+ default:
+ return;
+ }
+ pa_log(c);
+ pa_xfree(c);
+ }
+
+ return;
+ }
+
+ case SIGINT:
+ case SIGTERM:
+ default:
+ pa_log(__FILE__": Exiting.\n");
+ m->quit(m, 1);
+ return;
+ }
}
-static void close_pipe(int p[2]) {
+
+ static void close_pipe(int p[2]) {
if (p[0] != -1)
close(p[0]);
if (p[1] != -1)
int main(int argc, char *argv[]) {
struct pa_core *c;
- struct pa_cmdline *cmdline = NULL;
struct pa_strbuf *buf = NULL;
+ struct pa_daemon_conf *conf;
+ struct pa_mainloop *mainloop;
+
char *s;
- int r, retval = 1;
+ int r, retval = 1, d = 0;
int daemon_pipe[2] = { -1, -1 };
+ gid_t gid = (gid_t) -1;
+ int suid_root;
- if (!(cmdline = pa_cmdline_parse(argc, argv))) {
- fprintf(stderr, __FILE__": failed to parse command line.\n");
- goto finish;
+ pa_limit_caps();
+
+ suid_root = getuid() != 0 && geteuid() == 0;
+
+ if (suid_root && (pa_uid_in_group("realtime", &gid) <= 0 || gid >= 1000)) {
+ pa_log(__FILE__": WARNING: called SUID root, but not in group 'realtime'.\n");
+ pa_drop_root();
}
+
+ LTDL_SET_PRELOADED_SYMBOLS();
+
+ r = lt_dlinit();
+ assert(r == 0);
- if (cmdline->help) {
- pa_cmdline_help(argv[0]);
- retval = 0;
+ pa_log_set_ident("polypaudio");
+
+ 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(__FILE__": failed to parse command line.\n");
+ goto finish;
+ }
+
+ 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_drop_caps();
+
+ if (suid_root)
+ pa_drop_root();
+
+ if (conf->dl_search_path)
+ lt_dlsetsearchpath(conf->dl_search_path);
+
+ 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: {
+ char *s = pa_daemon_conf_dump(conf);
+ fputs(s, stdout);
+ pa_xfree(s);
+ 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;
+
+ default:
+ assert(conf->cmd == PA_CMD_DAEMON);
}
- if (cmdline->daemonize) {
+ if (conf->daemonize) {
pid_t child;
if (pa_stdio_acquire() < 0) {
- fprintf(stderr, __FILE__": failed to acquire stdio.\n");
+ pa_log(__FILE__": failed to acquire stdio.\n");
goto finish;
}
if (pipe(daemon_pipe) < 0) {
- fprintf(stderr, __FILE__": failed to create pipe.\n");
+ pa_log(__FILE__": failed to create pipe.\n");
goto finish;
}
if ((child = fork()) < 0) {
- fprintf(stderr, __FILE__": fork() failed: %s\n", strerror(errno));
+ pa_log(__FILE__": fork() failed: %s\n", strerror(errno));
goto finish;
}
daemon_pipe[1] = -1;
if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval)) != sizeof(retval)) {
- fprintf(stderr, __FILE__": read() failed: %s\n", strerror(errno));
+ pa_log(__FILE__": read() failed: %s\n", strerror(errno));
retval = 1;
}
+ if (conf->verbose)
+ pa_log(__FILE__": daemon startup %s.\n", retval ? "failed" : "succeeded");
+
goto finish;
}
close(daemon_pipe[0]);
daemon_pipe[0] = -1;
-
+
+ if (conf->auto_log_target)
+ pa_log_set_target(PA_LOG_SYSLOG, NULL);
+
setsid();
- setpgrp();
+ setpgid(0,0);
+
+ close(0);
+ close(1);
}
- r = lt_dlinit();
- assert(r == 0);
-#ifdef DLSEARCHDIR
-/* lt_dladdsearchdir(DLSEARCHDIR);*/
-#endif
+ chdir("/");
+ pa_log(__FILE__": sizeof(pa_usec_t) = %u\n", sizeof(pa_usec_t));
+
mainloop = pa_mainloop_new();
assert(mainloop);
r = pa_signal_init(pa_mainloop_get_api(mainloop));
assert(r == 0);
- pa_signal_register(SIGINT, exit_signal_callback, NULL);
+ pa_signal_new(SIGINT, signal_callback, c);
+ pa_signal_new(SIGTERM, signal_callback, c);
signal(SIGPIPE, SIG_IGN);
c = pa_core_new(pa_mainloop_get_api(mainloop));
assert(c);
- pa_signal_register(SIGUSR1, aux_signal_callback, c);
- pa_signal_register(SIGUSR2, aux_signal_callback, c);
+ pa_signal_new(SIGUSR1, signal_callback, c);
+ pa_signal_new(SIGUSR2, signal_callback, c);
+ pa_signal_new(SIGHUP, signal_callback, c);
+ r = pa_cpu_limit_init(pa_mainloop_get_api(mainloop));
+ assert(r == 0);
+
buf = pa_strbuf_new();
assert(buf);
- r = pa_cli_command_execute(c, cmdline->cli_commands, buf, &cmdline->fail, &cmdline->verbose);
- fprintf(stderr, s = pa_strbuf_tostring_free(buf));
- free(s);
+ if (conf->default_script_file)
+ r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail, &conf->verbose);
+
+ if (r >= 0)
+ r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail, &conf->verbose);
+ pa_log(s = pa_strbuf_tostring_free(buf));
+ pa_xfree(s);
- if (r < 0 && cmdline->fail) {
- fprintf(stderr, __FILE__": failed to initialize daemon.\n");
- if (cmdline->daemonize)
+ if (r < 0 && conf->fail) {
+ pa_log(__FILE__": failed to initialize daemon.\n");
+ if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
} else if (!c->modules || pa_idxset_ncontents(c->modules) == 0) {
- fprintf(stderr, __FILE__": daemon startup without any loaded modules, refusing to work.\n");
- if (cmdline->daemonize)
+ pa_log(__FILE__": daemon startup without any loaded modules, refusing to work.\n");
+ if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
} else {
retval = 0;
- if (cmdline->daemonize)
+ if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
- fprintf(stderr, __FILE__": mainloop entry.\n");
+
+ 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;
+
+ pa_log(__FILE__": Daemon startup complete.\n");
if (pa_mainloop_run(mainloop, &retval) < 0)
retval = 1;
- fprintf(stderr, __FILE__": mainloop exit.\n");
+ pa_log(__FILE__": Daemon shutdown initiated.\n");
}
pa_core_free(c);
+ pa_cpu_limit_done();
pa_signal_done();
pa_mainloop_free(mainloop);
- lt_dlexit();
-
+ pa_log(__FILE__": Daemon terminated.\n");
+
finish:
- if (cmdline)
- pa_cmdline_free(cmdline);
+ if (conf)
+ pa_daemon_conf_free(conf);
close_pipe(daemon_pipe);
+
+ lt_dlexit();
return retval;
}