2 * citserver's main() function lives here.
4 * Copyright (c) 1987-2015 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.
15 #include <sys/types.h>
17 #include <libcitadel.h>
19 #include "citserver.h"
20 #include "svn_revision.h"
21 #include "modules_init.h"
24 #include "serv_extensions.h"
25 #include "citadel_dirs.h"
30 const char *CitadelServiceUDS="citadel-UDS";
31 const char *CitadelServiceTCP="citadel-TCP";
32 void go_threading(void);
35 * Here's where it all begins.
37 int main(int argc, char **argv)
41 int a; /* General-purpose variables */
42 struct passwd pw, *pwp = NULL;
44 int drop_root_perms = 1;
48 char relhome[PATH_MAX]="";
49 char ctdldir[PATH_MAX]=CTDLDIR;
50 int syslog_facility = LOG_DAEMON;
51 const char *eDebuglist[] = {NULL, NULL};
53 struct passwd *p = NULL;
55 struct stat filestats;
58 eCrashParameters params;
59 // eCrashSymbolTable symbol_table;
62 /* initialize the master context */
64 InitializeMasterTSD();
66 /* parse command-line arguments */
67 while ((a=getopt(argc, argv, "l:dh:x:t:B:Dru:")) != EOF) switch(a) {
70 safestrncpy(facility, optarg, sizeof(facility));
71 syslog_facility = SyslogFacility(facility);
74 /* run in the background if -d was specified */
76 running_as_daemon = 1;
80 relh = optarg[0] != '/';
82 safestrncpy(ctdl_home_directory, optarg, sizeof ctdl_home_directory);
85 safestrncpy(relhome, optarg, sizeof relhome);
91 eDebuglist [0] = optarg;
94 case 't': /* deprecated */
96 case 'B': /* Basesize */
97 basesize = atoi(optarg);
104 /* -r tells the server not to drop root permissions.
105 * Don't use this unless you know what you're doing.
111 /* -u tells the server what uid to run under... */
118 p = getpwnam(optarg);
129 /* any other parameter makes it crash and burn */
130 fprintf(stderr, "citserver: usage: "
140 /* Last ditch effort to determine the user name ... if there's a user called "citadel" then use that */
142 p = getpwnam("citadel");
147 p = getpwnam("guest");
157 if ((ctdluid == 0) && (drop_root_perms == 0)) {
158 fprintf(stderr, "citserver: cannot determine user to run as; please specify -r or -u options\n");
159 exit(CTDLEXIT_UNUSER);
162 StartLibCitadel(basesize);
164 ( running_as_daemon ? (LOG_PID) : (LOG_PID | LOG_PERROR) ),
168 calc_dirs_n_files(relh, home, relhome, ctdldir, dbg);
169 /* daemonize, if we were asked to */
170 if (running_as_daemon) {
177 bzero(¶ms, sizeof(params));
178 params.filename = file_pid_paniclog;
179 panic_fd=open(file_pid_paniclog, O_APPEND|O_CREAT|O_DIRECT);
180 params.filep = fopen(file_pid_paniclog, "a+");
181 params.debugLevel = ECRASH_DEBUG_VERBOSE;
182 params.dumpAllThreads = TRUE;
183 params.useBacktraceSymbols = 1;
184 params.signals[0]=SIGSEGV;
185 params.signals[1]=SIGILL;
186 params.signals[2]=SIGBUS;
187 params.signals[3]=SIGABRT;
188 eCrash_Init(¶ms);
189 eCrash_RegisterThread("MasterThread", 0);
192 /* Tell 'em who's in da house */
193 syslog(LOG_NOTICE, " ");
194 syslog(LOG_NOTICE, " ");
196 "*** Citadel server engine v%d.%02d (build %s) ***",
197 (REV_LEVEL/100), (REV_LEVEL%100), svn_revision());
198 syslog(LOG_NOTICE, "Copyright (C) 1987-2015 by the Citadel development team.");
199 syslog(LOG_NOTICE, "This program is distributed under the terms of the GNU "
200 "General Public License.");
201 syslog(LOG_NOTICE, " ");
202 syslog(LOG_DEBUG, "Called as: %s", argv[0]);
203 syslog(LOG_INFO, "%s", libcitadel_version_string());
206 /* on some dists rundir gets purged on startup. so we need to recreate it. */
208 if (stat(ctdl_run_dir, &filestats)==-1){
209 #ifdef HAVE_GETPWUID_R
210 #ifdef SOLARIS_GETPWUID
211 pwp = getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf));
212 #else // SOLARIS_GETPWUID
213 getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
214 #endif // SOLARIS_GETPWUID
215 #else // HAVE_GETPWUID_R
217 #endif // HAVE_GETPWUID_R
219 if ((mkdir(ctdl_run_dir, 0755) != 0) && (errno != EEXIST))
221 "unable to create run directory [%s]: %s",
222 ctdl_run_dir, strerror(errno));
224 if (chown(ctdl_run_dir, ctdluid, (pwp==NULL)?-1:pw.pw_gid) != 0)
226 "unable to set the access rights for [%s]: %s",
227 ctdl_run_dir, strerror(errno));
237 * Do non system dependent startup functions.
242 * Check that the control record is correct and place sensible values if it isn't
247 * Run any upgrade entry points
249 syslog(LOG_INFO, "Upgrading modules.");
253 * Load the user for the masterCC or create them if they don't exist
255 if (CtdlGetUser(&masterCC.user, "SYS_Citadel"))
257 /* User doesn't exist. We can't use create user here as the user number needs to be 0 */
258 strcpy (masterCC.user.fullname, "SYS_Citadel") ;
259 CtdlPutUser(&masterCC.user);
260 CtdlGetUser(&masterCC.user, "SYS_Citadel"); /* Just to be safe */
264 * Bind the server to a Unix-domain socket (user client access)
266 CtdlRegisterServiceHook(0,
268 citproto_begin_session,
274 * Bind the server to a Unix-domain socket (admin client access)
276 CtdlRegisterServiceHook(0,
277 file_citadel_admin_socket,
278 citproto_begin_admin_session,
282 chmod(file_citadel_admin_socket, S_IRWXU); /* for your eyes only */
285 * Bind the server to our favorite TCP port (usually 504).
287 CtdlRegisterServiceHook(CtdlGetConfigInt("c_port_number"),
289 citproto_begin_session,
298 * Load any server-side extensions available here.
300 syslog(LOG_INFO, "Initializing server extensions");
302 initialise_modules(0);
304 eDebuglist[1] = getenv("CITADEL_LOGDEBUG");
305 CtdlSetDebugLogFacilities(eDebuglist, 2);
308 * If we need host auth, start our chkpwd daemon.
310 if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
311 start_chkpwd_daemon();
316 * check, whether we're fired up another time after a crash.
317 * if, post an aide message, so the admin has a chance to react.
323 * Now that we've bound the sockets, change to the Citadel user id and its
324 * corresponding group ids
326 if (drop_root_perms) {
327 cdb_chmod_data(); /* make sure we own our data files */
329 #ifdef HAVE_GETPWUID_R
330 #ifdef SOLARIS_GETPWUID
331 pwp = getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf));
332 #else // SOLARIS_GETPWUID
333 getpwuid_r(ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
334 #endif // SOLARIS_GETPWUID
335 #else // HAVE_GETPWUID_R
337 #endif // HAVE_GETPWUID_R
340 syslog(LOG_CRIT, "WARNING: getpwuid(%ld): %s"
341 "Group IDs will be incorrect.\n", (long)CTDLUID,
344 initgroups(pw.pw_name, pw.pw_gid);
345 if (setgid(pw.pw_gid))
346 syslog(LOG_CRIT, "setgid(%ld): %s", (long)pw.pw_gid,
349 syslog(LOG_INFO, "Changing uid to %ld", (long)CTDLUID);
350 if (setuid(CTDLUID) != 0) {
351 syslog(LOG_CRIT, "setuid() failed: %s", strerror(errno));
353 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
354 prctl(PR_SET_DUMPABLE, 1);
358 /* We want to check for idle sessions once per minute */
359 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER, PRIO_CLEANUP + 1);
363 master_cleanup(exit_signal);