4 * citserver's main() function lives here.
6 * Copyright (c) 1987-2010 by the citadel.org team
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include <sys/types.h>
33 #include <sys/socket.h>
36 #if TIME_WITH_SYS_TIME
37 # include <sys/time.h>
41 # include <sys/time.h>
48 #include <netinet/in.h>
57 #ifdef HAVE_SYS_PRCTL_H
58 #include <sys/prctl.h>
60 #include <libcitadel.h>
63 #include "serv_extensions.h"
64 #include "sysdep_decls.h"
66 #include "citserver.h"
72 #include "housekeeping.h"
73 #include "svn_revision.h"
74 #include "citadel_dirs.h"
78 #include "modules_init.h"
81 #ifdef HAVE_SYS_SELECT_H
82 #include <sys/select.h>
88 const char *CitadelServiceUDS="citadel-UDS";
89 const char *CitadelServiceTCP="citadel-TCP";
93 void go_threading(void);
96 * Here's where it all begins.
98 int main(int argc, char **argv)
101 int a; /* General-purpose variables */
102 struct passwd pw, *pwp = NULL;
104 int drop_root_perms = 1;
111 char relhome[PATH_MAX]="";
112 char ctdldir[PATH_MAX]=CTDLDIR;
114 struct stat filestats;
116 #ifdef HAVE_BACKTRACE
117 eCrashParameters params;
118 // eCrashSymbolTable symbol_table;
127 /* initialise semaphores here. Patch by Matt and davew
128 * its called here as they are needed by CtdlLogPrintf for thread safety
130 InitialiseSemaphores();
132 /* initialize the master context */
133 InitializeMasterCC();
135 /* parse command-line arguments */
136 for (a=1; a<argc; ++a) {
138 if (!strncmp(argv[a], "-l", 2)) {
139 safestrncpy(facility, &argv[a][2], sizeof(facility));
140 syslog_facility = SyslogFacility(facility);
144 /* run in the background if -d was specified */
145 else if (!strcmp(argv[a], "-d")) {
146 running_as_daemon = 1;
149 /* run a few stats if -s was specified */
150 else if (!strncmp(argv[a], "-s", 2)) {
151 statcount = atoi(&argv[a][2]);
154 /* -x specifies the desired logging level */
155 else if (!strncmp(argv[a], "-x", 2)) {
156 verbosity = atoi(&argv[a][2]);
160 else if (!strncmp(argv[a], "-h", 2)) {
161 relh=argv[a][2]!='/';
162 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
163 sizeof ctdl_home_directory);
165 safestrncpy(relhome, &argv[a][2],
170 else if (!strncmp(argv[a], "-t", 2)) {
171 if (freopen(&argv[a][2], "w", stderr) != stderr)
173 CtdlLogPrintf(CTDL_EMERG,
174 "unable to open your trace log [%s]: %s",
182 else if (!strncmp(argv[a], "-D", 2)) {
186 /* -r tells the server not to drop root permissions. don't use
187 * this unless you know what you're doing. this should be
188 * removed in the next release if it proves unnecessary. */
189 else if (!strcmp(argv[a], "-r"))
192 /* any other parameter makes it crash and burn */
194 CtdlLogPrintf(CTDL_EMERG, "citserver: usage: "
199 " [-xLogLevel] [-hHomeDir]\n");
205 if (have_minus_x && running_as_daemon && have_log)
206 print_to_logfile = 1;
208 calc_dirs_n_files(relh, home, relhome, ctdldir, dbg);
209 /* daemonize, if we were asked to */
210 if (running_as_daemon) {
215 #ifdef HAVE_BACKTRACE
216 bzero(¶ms, sizeof(params));
217 params.filename = file_pid_paniclog;
218 panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
219 params.filep = fopen(file_pid_paniclog, "a+");
220 params.debugLevel = ECRASH_DEBUG_VERBOSE;
221 params.dumpAllThreads = TRUE;
222 params.useBacktraceSymbols = 1;
223 params.signals[0]=SIGSEGV;
224 params.signals[1]=SIGILL;
225 params.signals[2]=SIGBUS;
226 params.signals[3]=SIGABRT;
227 eCrash_Init(¶ms);
228 eCrash_RegisterThread("MasterThread", 0);
231 /* Initialize the syslogger. Yes, we are really using 0 as the
232 * facility, because we are going to bitwise-OR the facility to
233 * the severity of each message, allowing us to write to other
234 * facilities when we need to...
237 openlog("citadel", LOG_NDELAY, 0);
238 setlogmask(LOG_UPTO(verbosity));
241 /* Tell 'em who's in da house */
242 CtdlLogPrintf(CTDL_NOTICE, "\n");
243 CtdlLogPrintf(CTDL_NOTICE, "\n");
244 CtdlLogPrintf(CTDL_NOTICE,
245 "*** Citadel server engine v%d.%02d (build %s) ***\n",
246 (REV_LEVEL/100), (REV_LEVEL%100), svn_revision());
247 CtdlLogPrintf(CTDL_NOTICE, "Copyright (C) 1987-2010 by the Citadel development team.\n");
248 CtdlLogPrintf(CTDL_NOTICE, "This program is distributed under the terms of the GNU "
249 "General Public License.\n");
250 CtdlLogPrintf(CTDL_NOTICE, "\n");
251 CtdlLogPrintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
252 CtdlLogPrintf(CTDL_INFO, "%s\n", libcitadel_version_string());
254 /* Load site-specific parameters, and set the ipgm secret */
255 CtdlLogPrintf(CTDL_INFO, "Loading citadel.config\n");
257 config.c_ipgm_secret = rand();
259 /* get_control() MUST MUST MUST be called BEFORE the databases are opened!! */
260 CtdlLogPrintf(CTDL_INFO, "Acquiring control record\n");
266 /* on some dists rundir gets purged on startup. so we need to recreate it. */
268 if (stat(ctdl_run_dir, &filestats)==-1){
269 #ifdef HAVE_GETPWUID_R
270 #ifdef SOLARIS_GETPWUID
271 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
272 #else // SOLARIS_GETPWUID
273 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
274 #endif // SOLARIS_GETPWUID
275 #else // HAVE_GETPWUID_R
277 #endif // HAVE_GETPWUID_R
279 if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST))
280 CtdlLogPrintf(CTDL_EMERG,
281 "unable to create run directory [%s]: %s",
282 ctdl_run_dir, strerror(errno));
284 if (chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0)
285 CtdlLogPrintf(CTDL_EMERG,
286 "unable to set the access rights for [%s]: %s",
287 ctdl_run_dir, strerror(errno));
297 * Do non system dependent startup functions.
302 * Check that the control record is correct and place sensible values if it isn't
307 * Run any upgrade entry points
309 CtdlLogPrintf(CTDL_INFO, "Upgrading modules.\n");
313 * Load the user for the masterCC or create them if they don't exist
315 if (CtdlGetUser(&masterCC.user, "SYS_Citadel"))
317 /** User doesn't exist. We can't use create user here as the user number needs to be 0 */
318 strcpy (masterCC.user.fullname, "SYS_Citadel") ;
319 CtdlPutUser(&masterCC.user);
320 CtdlGetUser(&masterCC.user, "SYS_Citadel"); /** Just to be safe */
324 * Bind the server to a Unix-domain socket.
326 CtdlRegisterServiceHook(0,
328 citproto_begin_session,
334 * Bind the server to our favorite TCP port (usually 504).
336 CtdlRegisterServiceHook(config.c_port_number,
338 citproto_begin_session,
347 * Load any server-side extensions available here.
349 CtdlLogPrintf(CTDL_INFO, "Initializing server extensions\n");
350 size = strlen(ctdl_home_directory) + 9;
352 initialise_modules(0);
357 * If we need host auth, start our chkpwd daemon.
359 if (config.c_auth_mode == AUTHMODE_HOST) {
360 start_chkpwd_daemon();
365 * check, whether we're fired up another time after a crash.
366 * if, post an aide message, so the admin has a chance to react.
372 * Now that we've bound the sockets, change to the Citadel user id and its
373 * corresponding group ids
375 if (drop_root_perms) {
376 cdb_chmod_data(); /* make sure we own our data files */
378 #ifdef HAVE_GETPWUID_R
379 #ifdef SOLARIS_GETPWUID
380 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
381 #else // SOLARIS_GETPWUID
382 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
383 #endif // SOLARIS_GETPWUID
384 #else // HAVE_GETPWUID_R
386 #endif // HAVE_GETPWUID_R
389 CtdlLogPrintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
390 "Group IDs will be incorrect.\n", (long)CTDLUID,
393 initgroups(pw.pw_name, pw.pw_gid);
394 if (setgid(pw.pw_gid))
395 CtdlLogPrintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
398 CtdlLogPrintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
399 if (setuid(CTDLUID) != 0) {
400 CtdlLogPrintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
402 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
403 prctl(PR_SET_DUMPABLE, 1);
407 /* We want to check for idle sessions once per minute */
408 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
413 master_cleanup(exit_signal);