2 * citserver's main() function lives here.
4 * Copyright (c) 1987-2012 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
22 #include <sys/types.h>
25 #include <sys/socket.h>
28 #if TIME_WITH_SYS_TIME
29 # include <sys/time.h>
33 # include <sys/time.h>
40 #include <netinet/in.h>
49 #ifdef HAVE_SYS_PRCTL_H
50 #include <sys/prctl.h>
52 #include <libcitadel.h>
55 #include "serv_extensions.h"
56 #include "sysdep_decls.h"
58 #include "citserver.h"
64 #include "housekeeping.h"
65 #include "svn_revision.h"
66 #include "citadel_dirs.h"
70 #include "modules_init.h"
73 #ifdef HAVE_SYS_SELECT_H
74 #include <sys/select.h>
80 const char *CitadelServiceUDS="citadel-UDS";
81 const char *CitadelServiceTCP="citadel-TCP";
85 void go_threading(void);
88 * Here's where it all begins.
90 int main(int argc, char **argv)
94 int a; /* General-purpose variables */
95 struct passwd pw, *pwp = NULL;
97 int drop_root_perms = 1;
101 char relhome[PATH_MAX]="";
102 char ctdldir[PATH_MAX]=CTDLDIR;
103 int syslog_facility = LOG_DAEMON;
104 const char *eDebuglist[] = {NULL, NULL};
106 struct stat filestats;
108 #ifdef HAVE_BACKTRACE
109 eCrashParameters params;
110 // eCrashSymbolTable symbol_table;
113 /* initialize the master context */
114 InitializeMasterCC();
115 InitializeMasterTSD();
117 /* parse command-line arguments */
118 while ((a=getopt(argc, argv, "l:dh:x:t:B:Dr")) != EOF) switch(a) {
121 safestrncpy(facility, optarg, sizeof(facility));
122 syslog_facility = SyslogFacility(facility);
125 /* run in the background if -d was specified */
127 running_as_daemon = 1;
131 relh = optarg[0] != '/';
133 safestrncpy(ctdl_home_directory, optarg, sizeof ctdl_home_directory);
136 safestrncpy(relhome, optarg, sizeof relhome);
142 eDebuglist [0] = optarg;
145 case 't': /* deprecated */
147 case 'B': /* Basesize */
148 basesize = atoi(optarg);
155 /* -r tells the server not to drop root permissions.
156 * Don't use this unless you know what you're doing.
163 /* any other parameter makes it crash and burn */
164 fprintf(stderr, "citserver: usage: "
172 StartLibCitadel(basesize);
174 ( running_as_daemon ? (LOG_PID) : (LOG_PID | LOG_PERROR) ),
178 calc_dirs_n_files(relh, home, relhome, ctdldir, dbg);
179 /* daemonize, if we were asked to */
180 if (running_as_daemon) {
185 #ifdef HAVE_BACKTRACE
186 bzero(¶ms, sizeof(params));
187 params.filename = file_pid_paniclog;
188 panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
189 params.filep = fopen(file_pid_paniclog, "a+");
190 params.debugLevel = ECRASH_DEBUG_VERBOSE;
191 params.dumpAllThreads = TRUE;
192 params.useBacktraceSymbols = 1;
193 params.signals[0]=SIGSEGV;
194 params.signals[1]=SIGILL;
195 params.signals[2]=SIGBUS;
196 params.signals[3]=SIGABRT;
197 eCrash_Init(¶ms);
198 eCrash_RegisterThread("MasterThread", 0);
201 /* Tell 'em who's in da house */
202 syslog(LOG_NOTICE, " ");
203 syslog(LOG_NOTICE, " ");
205 "*** Citadel server engine v%d.%02d (build %s) ***",
206 (REV_LEVEL/100), (REV_LEVEL%100), svn_revision());
207 syslog(LOG_NOTICE, "Copyright (C) 1987-2013 by the Citadel development team.");
208 syslog(LOG_NOTICE, "This program is distributed under the terms of the GNU "
209 "General Public License.");
210 syslog(LOG_NOTICE, " ");
211 syslog(LOG_DEBUG, "Called as: %s", argv[0]);
212 syslog(LOG_INFO, "%s", libcitadel_version_string());
214 /* Load site-specific configuration */
215 syslog(LOG_INFO, "Loading citadel.config");
218 /* get_control() MUST MUST MUST be called BEFORE the databases are opened!! */
219 syslog(LOG_INFO, "Acquiring control record");
225 /* on some dists rundir gets purged on startup. so we need to recreate it. */
227 if (stat(ctdl_run_dir, &filestats)==-1){
228 #ifdef HAVE_GETPWUID_R
229 #ifdef SOLARIS_GETPWUID
230 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
231 #else // SOLARIS_GETPWUID
232 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
233 #endif // SOLARIS_GETPWUID
234 #else // HAVE_GETPWUID_R
236 #endif // HAVE_GETPWUID_R
238 if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST))
240 "unable to create run directory [%s]: %s",
241 ctdl_run_dir, strerror(errno));
243 if (chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0)
245 "unable to set the access rights for [%s]: %s",
246 ctdl_run_dir, strerror(errno));
256 * Do non system dependent startup functions.
261 * Check that the control record is correct and place sensible values if it isn't
266 * Run any upgrade entry points
268 syslog(LOG_INFO, "Upgrading modules.");
272 * Load the user for the masterCC or create them if they don't exist
274 if (CtdlGetUser(&masterCC.user, "SYS_Citadel"))
276 /* User doesn't exist. We can't use create user here as the user number needs to be 0 */
277 strcpy (masterCC.user.fullname, "SYS_Citadel") ;
278 CtdlPutUser(&masterCC.user);
279 CtdlGetUser(&masterCC.user, "SYS_Citadel"); /* Just to be safe */
283 * Bind the server to a Unix-domain socket (user client access)
285 CtdlRegisterServiceHook(0,
287 citproto_begin_session,
293 * Bind the server to a Unix-domain socket (admin client access)
295 CtdlRegisterServiceHook(0,
296 file_citadel_admin_socket,
297 citproto_begin_admin_session,
301 chmod(file_citadel_admin_socket, S_IRWXU); /* for your eyes only */
304 * Bind the server to our favorite TCP port (usually 504).
306 CtdlRegisterServiceHook(config.c_port_number,
308 citproto_begin_session,
317 * Load any server-side extensions available here.
319 syslog(LOG_INFO, "Initializing server extensions");
321 initialise_modules(0);
323 eDebuglist[1] = getenv("CITADEL_LOGDEBUG");
324 CtdlSetDebugLogFacilities(eDebuglist, 2);
327 * If we need host auth, start our chkpwd daemon.
329 if (config.c_auth_mode == AUTHMODE_HOST) {
330 start_chkpwd_daemon();
335 * check, whether we're fired up another time after a crash.
336 * if, post an aide message, so the admin has a chance to react.
342 * Now that we've bound the sockets, change to the Citadel user id and its
343 * corresponding group ids
345 if (drop_root_perms) {
346 cdb_chmod_data(); /* make sure we own our data files */
348 #ifdef HAVE_GETPWUID_R
349 #ifdef SOLARIS_GETPWUID
350 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
351 #else // SOLARIS_GETPWUID
352 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
353 #endif // SOLARIS_GETPWUID
354 #else // HAVE_GETPWUID_R
356 #endif // HAVE_GETPWUID_R
359 syslog(LOG_CRIT, "WARNING: getpwuid(%ld): %s"
360 "Group IDs will be incorrect.\n", (long)CTDLUID,
363 initgroups(pw.pw_name, pw.pw_gid);
364 if (setgid(pw.pw_gid))
365 syslog(LOG_CRIT, "setgid(%ld): %s", (long)pw.pw_gid,
368 syslog(LOG_INFO, "Changing uid to %ld", (long)CTDLUID);
369 if (setuid(CTDLUID) != 0) {
370 syslog(LOG_CRIT, "setuid() failed: %s", strerror(errno));
372 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
373 prctl(PR_SET_DUMPABLE, 1);
377 /* We want to check for idle sessions once per minute */
378 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER, PRIO_CLEANUP + 1);
382 master_cleanup(exit_signal);