2 * citserver's main() function lives here.
4 * Copyright (c) 1987-2010 by the citadel.org team
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include <sys/types.h>
31 #include <sys/socket.h>
34 #if TIME_WITH_SYS_TIME
35 # include <sys/time.h>
39 # include <sys/time.h>
46 #include <netinet/in.h>
55 #ifdef HAVE_SYS_PRCTL_H
56 #include <sys/prctl.h>
58 #include <libcitadel.h>
61 #include "serv_extensions.h"
62 #include "sysdep_decls.h"
64 #include "citserver.h"
70 #include "housekeeping.h"
71 #include "svn_revision.h"
72 #include "citadel_dirs.h"
76 #include "modules_init.h"
79 #ifdef HAVE_SYS_SELECT_H
80 #include <sys/select.h>
86 const char *CitadelServiceUDS="citadel-UDS";
87 const char *CitadelServiceTCP="citadel-TCP";
91 void go_threading(void);
94 * Here's where it all begins.
96 int main(int argc, char **argv)
99 int a; /* General-purpose variables */
100 struct passwd pw, *pwp = NULL;
102 int drop_root_perms = 1;
109 char relhome[PATH_MAX]="";
110 char ctdldir[PATH_MAX]=CTDLDIR;
112 struct stat filestats;
114 #ifdef HAVE_BACKTRACE
115 eCrashParameters params;
116 // eCrashSymbolTable symbol_table;
125 /* initialise semaphores here. Patch by Matt and davew
126 * its called here as they are needed by CtdlLogPrintf for thread safety
128 InitialiseSemaphores();
130 /* initialize the master context */
131 InitializeMasterCC();
133 /* parse command-line arguments */
134 for (a=1; a<argc; ++a) {
136 if (!strncmp(argv[a], "-l", 2)) {
137 safestrncpy(facility, &argv[a][2], sizeof(facility));
138 syslog_facility = SyslogFacility(facility);
142 /* run in the background if -d was specified */
143 else if (!strcmp(argv[a], "-d")) {
144 running_as_daemon = 1;
147 /* run a few stats if -s was specified */
148 else if (!strncmp(argv[a], "-s", 2)) {
149 statcount = atoi(&argv[a][2]);
152 /* -x specifies the desired logging level */
153 else if (!strncmp(argv[a], "-x", 2)) {
154 verbosity = atoi(&argv[a][2]);
158 else if (!strncmp(argv[a], "-h", 2)) {
159 relh=argv[a][2]!='/';
160 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
161 sizeof ctdl_home_directory);
163 safestrncpy(relhome, &argv[a][2],
168 else if (!strncmp(argv[a], "-t", 2)) {
169 if (freopen(&argv[a][2], "w", stderr) != stderr)
171 CtdlLogPrintf(CTDL_EMERG,
172 "unable to open your trace log [%s]: %s",
180 else if (!strncmp(argv[a], "-D", 2)) {
184 /* -r tells the server not to drop root permissions. don't use
185 * this unless you know what you're doing. this should be
186 * removed in the next release if it proves unnecessary. */
187 else if (!strcmp(argv[a], "-r"))
190 /* any other parameter makes it crash and burn */
192 CtdlLogPrintf(CTDL_EMERG, "citserver: usage: "
197 " [-xLogLevel] [-hHomeDir]\n");
203 if (have_minus_x && running_as_daemon && have_log)
204 print_to_logfile = 1;
206 calc_dirs_n_files(relh, home, relhome, ctdldir, dbg);
207 /* daemonize, if we were asked to */
208 if (running_as_daemon) {
213 #ifdef HAVE_BACKTRACE
214 bzero(¶ms, sizeof(params));
215 params.filename = file_pid_paniclog;
216 panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
217 params.filep = fopen(file_pid_paniclog, "a+");
218 params.debugLevel = ECRASH_DEBUG_VERBOSE;
219 params.dumpAllThreads = TRUE;
220 params.useBacktraceSymbols = 1;
221 params.signals[0]=SIGSEGV;
222 params.signals[1]=SIGILL;
223 params.signals[2]=SIGBUS;
224 params.signals[3]=SIGABRT;
225 eCrash_Init(¶ms);
226 eCrash_RegisterThread("MasterThread", 0);
229 /* Initialize the syslogger. Yes, we are really using 0 as the
230 * facility, because we are going to bitwise-OR the facility to
231 * the severity of each message, allowing us to write to other
232 * facilities when we need to...
235 openlog("citadel", LOG_NDELAY, 0);
236 setlogmask(LOG_UPTO(verbosity));
239 /* Tell 'em who's in da house */
240 CtdlLogPrintf(CTDL_NOTICE, "\n");
241 CtdlLogPrintf(CTDL_NOTICE, "\n");
242 CtdlLogPrintf(CTDL_NOTICE,
243 "*** Citadel server engine v%d.%02d (build %s) ***\n",
244 (REV_LEVEL/100), (REV_LEVEL%100), svn_revision());
245 CtdlLogPrintf(CTDL_NOTICE, "Copyright (C) 1987-2010 by the Citadel development team.\n");
246 CtdlLogPrintf(CTDL_NOTICE, "This program is distributed under the terms of the GNU "
247 "General Public License.\n");
248 CtdlLogPrintf(CTDL_NOTICE, "\n");
249 CtdlLogPrintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
250 CtdlLogPrintf(CTDL_INFO, "%s\n", libcitadel_version_string());
252 /* Load site-specific parameters, and set the ipgm secret */
253 CtdlLogPrintf(CTDL_INFO, "Loading citadel.config\n");
255 config.c_ipgm_secret = rand();
257 /* get_control() MUST MUST MUST be called BEFORE the databases are opened!! */
258 CtdlLogPrintf(CTDL_INFO, "Acquiring control record\n");
264 /* on some dists rundir gets purged on startup. so we need to recreate it. */
266 if (stat(ctdl_run_dir, &filestats)==-1){
267 #ifdef HAVE_GETPWUID_R
268 #ifdef SOLARIS_GETPWUID
269 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
270 #else // SOLARIS_GETPWUID
271 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
272 #endif // SOLARIS_GETPWUID
273 #else // HAVE_GETPWUID_R
275 #endif // HAVE_GETPWUID_R
277 if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST))
278 CtdlLogPrintf(CTDL_EMERG,
279 "unable to create run directory [%s]: %s",
280 ctdl_run_dir, strerror(errno));
282 if (chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0)
283 CtdlLogPrintf(CTDL_EMERG,
284 "unable to set the access rights for [%s]: %s",
285 ctdl_run_dir, strerror(errno));
295 * Do non system dependent startup functions.
300 * Check that the control record is correct and place sensible values if it isn't
305 * Run any upgrade entry points
307 CtdlLogPrintf(CTDL_INFO, "Upgrading modules.\n");
311 * Load the user for the masterCC or create them if they don't exist
313 if (CtdlGetUser(&masterCC.user, "SYS_Citadel"))
315 /** User doesn't exist. We can't use create user here as the user number needs to be 0 */
316 strcpy (masterCC.user.fullname, "SYS_Citadel") ;
317 CtdlPutUser(&masterCC.user);
318 CtdlGetUser(&masterCC.user, "SYS_Citadel"); /** Just to be safe */
322 * Bind the server to a Unix-domain socket.
324 CtdlRegisterServiceHook(0,
326 citproto_begin_session,
332 * Bind the server to our favorite TCP port (usually 504).
334 CtdlRegisterServiceHook(config.c_port_number,
336 citproto_begin_session,
345 * Load any server-side extensions available here.
347 CtdlLogPrintf(CTDL_INFO, "Initializing server extensions\n");
348 size = strlen(ctdl_home_directory) + 9;
350 initialise_modules(0);
355 * If we need host auth, start our chkpwd daemon.
357 if (config.c_auth_mode == AUTHMODE_HOST) {
358 start_chkpwd_daemon();
363 * check, whether we're fired up another time after a crash.
364 * if, post an aide message, so the admin has a chance to react.
370 * Now that we've bound the sockets, change to the Citadel user id and its
371 * corresponding group ids
373 if (drop_root_perms) {
374 cdb_chmod_data(); /* make sure we own our data files */
376 #ifdef HAVE_GETPWUID_R
377 #ifdef SOLARIS_GETPWUID
378 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
379 #else // SOLARIS_GETPWUID
380 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
381 #endif // SOLARIS_GETPWUID
382 #else // HAVE_GETPWUID_R
384 #endif // HAVE_GETPWUID_R
387 CtdlLogPrintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
388 "Group IDs will be incorrect.\n", (long)CTDLUID,
391 initgroups(pw.pw_name, pw.pw_gid);
392 if (setgid(pw.pw_gid))
393 CtdlLogPrintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
396 CtdlLogPrintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
397 if (setuid(CTDLUID) != 0) {
398 CtdlLogPrintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
400 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
401 prctl(PR_SET_DUMPABLE, 1);
405 /* We want to check for idle sessions once per minute */
406 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
411 master_cleanup(exit_signal);