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allow high priority scheduling only for users in group "realtime"

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@238 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-09-23 22:42:49 +00:00
parent 8176b3a1ba
commit ed36241085
4 changed files with 96 additions and 21 deletions
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26
polyp/main.c
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@ -49,8 +49,6 @@
#include "dumpmodules.h"
#include "caps.h"
static struct pa_mainloop *mainloop;
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));
@ -84,22 +82,33 @@ int main(int argc, char *argv[]) {
struct pa_core *c;
struct pa_strbuf *buf = NULL;
struct pa_daemon_conf *conf;
struct pa_mainloop *mainloop;
char *s;
int r, retval = 1, d = 0;
int daemon_pipe[2] = { -1, -1 };
gid_t gid = (gid_t) -1;
int suid_root;
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();
}
r = lt_dlinit();
assert(r == 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;
@ -107,13 +116,16 @@ int main(int argc, char *argv[]) {
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);