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#include <signal.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <pthread.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include "triton/triton.h"
#include "memdebug.h"
#include "log.h"
#include "events.h"
static char *pid_file;
static char *conf_file;
#ifdef CRYPTO_OPENSSL
#include <openssl/ssl.h>
static pthread_mutex_t *ssl_lock_cs;
static unsigned long ssl_thread_id(void)
{
return (unsigned long)pthread_self();
}
static void ssl_lock(int mode, int type, const char *file, int line)
{
if (mode & CRYPTO_LOCK)
pthread_mutex_lock(&ssl_lock_cs[type]);
else
pthread_mutex_unlock(&ssl_lock_cs[type]);
}
static void openssl_init(void)
{
int i;
SSL_library_init();
SSL_load_error_strings();
OpenSSL_add_all_algorithms();
OpenSSL_add_all_digests();
ssl_lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
for (i = 0; i < CRYPTO_num_locks(); i++)
pthread_mutex_init(&ssl_lock_cs[i], NULL);
CRYPTO_set_id_callback(ssl_thread_id);
CRYPTO_set_locking_callback(ssl_lock);
}
#endif
static void change_limits(void)
{
FILE *f;
struct rlimit lim;
unsigned int file_max = 1024*1024;
unsigned int nr_open = 1024*1024;
f = fopen("/proc/sys/fs/nr_open", "r");
if (f) {
fscanf(f, "%d", &nr_open);
fclose(f);
}
f = fopen("/proc/sys/fs/file-max", "r");
if (f) {
fscanf(f, "%d", &file_max);
fclose(f);
}
if (file_max > nr_open)
file_max = nr_open;
lim.rlim_cur = file_max;
lim.rlim_max = file_max;
if (setrlimit(RLIMIT_NOFILE, &lim))
log_emerg("main: setrlimit: %s\n", strerror(errno));
}
static void config_reload_notify(int r)
{
if (!r)
triton_event_fire(EV_CONFIG_RELOAD, NULL);
}
static void config_reload(int num)
{
triton_conf_reload(config_reload_notify);
}
int main(int argc, char **argv)
{
sigset_t set;
int i, sig, goto_daemon = 0;
if (argc < 2)
goto usage;
for(i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-d"))
goto_daemon = 1;
else if (!strcmp(argv[i], "-p")) {
if (i == argc - 1)
goto usage;
pid_file = argv[++i];
} else if (!strcmp(argv[i], "-c")) {
if (i == argc - 1)
goto usage;
conf_file = argv[++i];
}
}
if (!conf_file)
goto usage;
if (triton_init(conf_file))
_exit(EXIT_FAILURE);
if (goto_daemon) {
/*pid_t pid = fork();
if (pid > 0)
_exit(EXIT_SUCCESS);
if (pid < 0) {
perror("fork");
return EXIT_FAILURE;
}
if (setsid() < 0)
_exit(EXIT_FAILURE);
pid = fork();
if (pid)
_exit(0);
umask(0);
chdir("/");
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);*/
daemon(0, 0);
}
if (pid_file) {
FILE *f = fopen(pid_file, "w");
if (f) {
fprintf(f, "%i", getpid());
fclose(f);
}
}
change_limits();
#ifdef CRYPTO_OPENSSL
openssl_init();
#endif
if (triton_load_modules("modules"))
return EXIT_FAILURE;
log_msg("accel-ppp version %s\n", ACCEL_PPP_VERSION);
triton_run();
sigfillset(&set);
struct sigaction sa = {
.sa_handler = config_reload,
.sa_mask = set,
};
sigaction(SIGUSR1, &sa, NULL);
sigdelset(&set, SIGKILL);
sigdelset(&set, SIGSTOP);
sigdelset(&set, SIGSEGV);
sigdelset(&set, SIGFPE);
sigdelset(&set, SIGILL);
sigdelset(&set, SIGBUS);
sigdelset(&set, SIGHUP);
sigdelset(&set, SIGIO);
sigdelset(&set, SIGINT);
sigdelset(&set, SIGUSR1);
sigdelset(&set, 35);
sigdelset(&set, 36);
pthread_sigmask(SIG_SETMASK, &set, NULL);
sigemptyset(&set);
//sigaddset(&set, SIGINT);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGSEGV);
sigaddset(&set, SIGILL);
sigaddset(&set, SIGFPE);
sigaddset(&set, SIGBUS);
sigwait(&set, &sig);
log_info1("terminate, sig = %i\n", sig);
triton_terminate();
return EXIT_SUCCESS;
usage:
printf("usage: accel-pppd [-d] [-p <file>] -c <file>\n\
where:\n\
-d - daemon mode\n\
-p - write pid to <file>\n\
-c - config file\n");
_exit(EXIT_FAILURE);
}
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