2 * citserver's main() function lives here.
14 #include <sys/types.h>
17 #include <sys/socket.h>
20 #if TIME_WITH_SYS_TIME
21 # include <sys/time.h>
25 # include <sys/time.h>
32 #include <netinet/in.h>
44 #ifdef HAVE_SYS_PRCTL_H
45 #include <sys/prctl.h>
49 #include "serv_extensions.h"
50 #include "sysdep_decls.h"
51 #include "citserver.h"
57 #include "housekeeping.h"
59 #include "citadel_dirs.c"
61 #include "modules_init.h"
64 #ifdef HAVE_SYS_SELECT_H
65 #include <sys/select.h>
71 const char *CitadelServiceUDS="citadel-UDS";
72 const char *CitadelServiceTCP="citadel-TCP";
75 * Here's where it all begins.
77 int main(int argc, char **argv)
80 int a, i; /* General-purpose variables */
81 struct passwd pw, *pwp = NULL;
83 int drop_root_perms = 1;
87 char relhome[PATH_MAX]="";
88 char ctdldir[PATH_MAX]=CTDLDIR;
90 struct stat filestats;
93 eCrashParameters params;
94 // eCrashSymbolTable symbol_table;
96 /* initialise semaphores here. Patch by Matt and davew
97 * its called here as they are needed by lprintf for thread safety
99 InitialiseSemaphores();
101 /* initialize the master context */
102 InitializeMasterCC();
104 /* parse command-line arguments */
105 for (a=1; a<argc; ++a) {
107 if (!strncmp(argv[a], "-l", 2)) {
108 safestrncpy(facility, &argv[a][2], sizeof(facility));
109 syslog_facility = SyslogFacility(facility);
113 /* run in the background if -d was specified */
114 else if (!strcmp(argv[a], "-d")) {
115 running_as_daemon = 1;
118 /* -x specifies the desired logging level */
119 else if (!strncmp(argv[a], "-x", 2)) {
120 verbosity = atoi(&argv[a][2]);
123 else if (!strncmp(argv[a], "-h", 2)) {
124 relh=argv[a][2]!='/';
125 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
126 sizeof ctdl_home_directory);
128 safestrncpy(relhome, &argv[a][2],
134 else if (!strncmp(argv[a], "-t", 2)) {
135 freopen(&argv[a][2], "w", stderr);
138 else if (!strncmp(argv[a], "-f", 2)) {
142 /* -r tells the server not to drop root permissions. don't use
143 * this unless you know what you're doing. this should be
144 * removed in the next release if it proves unnecessary. */
145 else if (!strcmp(argv[a], "-r"))
148 /* any other parameter makes it crash and burn */
150 lprintf(CTDL_EMERG, "citserver: usage: "
155 " [-xLogLevel] [-hHomeDir]\n");
161 calc_dirs_n_files(relh, home, relhome, ctdldir);
162 /* daemonize, if we were asked to */
163 if (running_as_daemon) {
168 #ifdef HAVE_BACKTRACE
169 bzero(¶ms, sizeof(params));
170 params.filename = file_pid_paniclog;
171 panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
172 params.filep = fopen(file_pid_paniclog, "a+");
173 params.debugLevel = ECRASH_DEBUG_VERBOSE;
174 params.dumpAllThreads = TRUE;
175 params.useBacktraceSymbols = 1;
176 /// BuildSymbolTable(&symbol_table);
177 // params.symbolTable = &symbol_table;
178 params.signals[0]=SIGSEGV;
179 params.signals[1]=SIGILL;
180 params.signals[2]=SIGBUS;
181 params.signals[3]=SIGABRT;
183 eCrash_Init(¶ms);
185 eCrash_RegisterThread("MasterThread", 0);
187 /// signal(SIGSEGV, cit_panic_backtrace);
189 /* Initialize the syslogger. Yes, we are really using 0 as the
190 * facility, because we are going to bitwise-OR the facility to
191 * the severity of each message, allowing us to write to other
192 * facilities when we need to...
195 openlog("citadel", LOG_NDELAY, 0);
196 setlogmask(LOG_UPTO(verbosity));
199 /* Tell 'em who's in da house */
200 lprintf(CTDL_NOTICE, "\n");
201 lprintf(CTDL_NOTICE, "\n");
203 "*** Citadel server engine v%d.%02d ***\n",
204 (REV_LEVEL/100), (REV_LEVEL%100));
206 "Copyright (C) 1987-2007 by the Citadel development team.\n");
208 "This program is distributed under the terms of the GNU "
209 "General Public License.\n");
210 lprintf(CTDL_NOTICE, "\n");
211 lprintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
213 /* Load site-specific parameters, and set the ipgm secret */
214 lprintf(CTDL_INFO, "Loading citadel.config\n");
216 config.c_ipgm_secret = rand();
219 lprintf(CTDL_INFO, "Acquiring control record\n");
223 /* on some dists rundir gets purged on startup. so we need to recreate it. */
225 if (stat(ctdl_run_dir, &filestats)==-1){
226 #ifdef SOLARIS_GETPWUID
227 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
229 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
231 mkdir(ctdl_run_dir, 0755);
232 chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid);
242 * Do non system dependent startup functions.
247 * Bind the server to a Unix-domain socket.
249 CtdlRegisterServiceHook(0,
251 citproto_begin_session,
257 * Bind the server to our favorite TCP port (usually 504).
259 CtdlRegisterServiceHook(config.c_port_number,
261 citproto_begin_session,
267 * Load any server-side extensions available here.
269 lprintf(CTDL_INFO, "Initializing server extensions\n");
270 size = strlen(ctdl_home_directory) + 9;
273 initialize_server_extensions();
276 initialise_modules();
281 * If we need host auth, start our chkpwd daemon.
283 if (config.c_auth_mode == 1) {
284 start_chkpwd_daemon();
288 * Now that we've bound the sockets, change to the Citadel user id and its
289 * corresponding group ids
291 if (drop_root_perms) {
292 cdb_chmod_data(); /* make sure we own our data files */
294 #ifdef SOLARIS_GETPWUID
295 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
297 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
300 lprintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
301 "Group IDs will be incorrect.\n", (long)CTDLUID,
304 initgroups(pw.pw_name, pw.pw_gid);
305 if (setgid(pw.pw_gid))
306 lprintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
309 lprintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
310 if (setuid(CTDLUID) != 0) {
311 lprintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
313 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
314 prctl(PR_SET_DUMPABLE, 1);
318 /* We want to check for idle sessions once per minute */
319 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
322 * Now create a bunch of worker threads.
324 lprintf(CTDL_DEBUG, "Starting %d worker threads\n",
325 config.c_min_workers-1);
326 begin_critical_section(S_WORKER_LIST);
327 for (i=0; i<(config.c_min_workers-1); ++i) {
330 end_critical_section(S_WORKER_LIST);
332 /* Create the maintenance threads. */
333 create_maintenance_threads();
335 /* This thread is now useless. It can't be turned into a worker
336 * thread because its stack is too small, but it can't be killed
337 * either because the whole server process would exit. So we just
338 * join to the first worker thread and exit when it exits.
340 pthread_join(worker_list->tid, NULL);