2 Copyright (c) 2012 Frank Lahm <franklahm@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
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.
16 #endif /* HAVE_CONFIG_H */
22 #include <sys/param.h>
25 #include <sys/socket.h>
29 #include <sys/resource.h>
31 #include <atalk/logger.h>
32 #include <atalk/adouble.h>
33 #include <atalk/compat.h>
34 #include <atalk/dsi.h>
35 #include <atalk/afp.h>
36 #include <atalk/paths.h>
37 #include <atalk/util.h>
38 #include <atalk/server_child.h>
39 #include <atalk/server_ipc.h>
40 #include <atalk/errchk.h>
41 #include <atalk/globals.h>
42 #include <atalk/netatalk_conf.h>
43 #include <atalk/bstrlib.h>
44 #include <atalk/bstradd.h>
46 #include <event2/event.h>
48 /* how many seconds we wait to shutdown from SIGTERM before we send SIGKILL */
49 #define KILL_GRACETIME 5
51 /* forward declaration */
52 static pid_t run_process(const char *path, ...);
53 static void kill_childs(int sig, ...);
55 /* static variables */
57 static pid_t afpd_pid = -1, cnid_metad_pid = -1, dbus_pid = -1, trackerd_pid = -1;
58 static uint afpd_restarts, cnid_metad_restarts, dbus_restarts, trackerd_restarts;
59 static struct event_base *base;
60 struct event *sigterm_ev, *sigquit_ev, *sigchld_ev, *timer_ev;
61 static int in_shutdown;
62 static const char *dbus_path;
64 /******************************************************************
66 ******************************************************************/
68 /* Set Tracker Miners to index all our volumes */
69 static int set_sl_volumes(void)
72 const struct vol *volumes, *vol;
73 struct bstrList *vollist = bstrListCreate();
74 bstring sep = bfromcstr(", ");
75 bstring volnamelist = NULL, cmd = NULL;
77 EC_NULL_LOG( volumes = getvolumes() );
79 for (vol = volumes; vol; vol = vol->v_next) {
80 bstring volnamequot = bformat("'%s'", vol->v_path);
81 bstrListPush(vollist, volnamequot);
84 volnamelist = bjoin(vollist, sep);
85 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"", bdata(volnamelist));
86 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
95 bstrListDestroy(vollist);
97 bdestroy(volnamelist);
101 /******************************************************************
102 * libevent helper functions
103 ******************************************************************/
105 /* libevent logging callback */
106 static void libevent_logmsg_cb(int severity, const char *msg)
109 case _EVENT_LOG_DEBUG:
110 LOG(log_debug, logtype_default, "libevent: %s", msg);
113 LOG(log_info, logtype_default, "libevent: %s", msg);
115 case _EVENT_LOG_WARN:
116 LOG(log_warning, logtype_default, "libevent: %s", msg);
119 LOG(log_error, logtype_default, "libevent: %s", msg);
122 LOG(log_error, logtype_default, "libevent: %s", msg);
123 break; /* never reached */
127 /******************************************************************
128 * libevent event callbacks
129 ******************************************************************/
131 /* SIGTERM callback */
132 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
137 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
143 /* block any signal but SIGCHLD */
145 sigdelset(&sigs, SIGCHLD);
146 sigprocmask(SIG_SETMASK, &sigs, NULL);
148 /* add 10 sec timeout timer, remove all events but SIGCHLD */
149 tv.tv_sec = KILL_GRACETIME;
151 event_base_loopexit(base, &tv);
152 event_del(sigterm_ev);
153 event_del(sigquit_ev);
156 #ifdef HAVE_TRACKER_SPARQL
157 system("tracker-control -t");
159 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
162 /* SIGQUIT callback */
163 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
165 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
166 #ifdef HAVE_TRACKER_SPARQL
167 system("tracker-control -t");
169 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
172 /* SIGHUP callback */
173 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
175 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
176 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, &trackerd_pid, NULL);
179 /* SIGCHLD callback */
180 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
185 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
186 if (WIFEXITED(status)) {
187 if (WEXITSTATUS(status))
188 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
190 LOG(log_info, logtype_default, "child[%d]: done", pid);
192 if (WIFSIGNALED(status))
193 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
195 LOG(log_info, logtype_default, "child[%d]: died", pid);
200 else if (pid == cnid_metad_pid)
202 else if (pid == dbus_pid)
204 else if (pid == trackerd_pid)
207 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
210 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1 && trackerd_pid == -1)
211 event_base_loopbreak(base);
215 static void timer_cb(evutil_socket_t fd, short what, void *arg)
220 if (afpd_pid == -1) {
222 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
223 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
224 LOG(log_error, logtype_default, "Error starting 'afpd'");
228 if (cnid_metad_pid == -1) {
229 cnid_metad_restarts++;
230 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
231 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
232 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
236 if (dbus_pid == -1) {
238 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
239 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
240 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
244 #ifdef HAVE_TRACKER_RDF
245 if (trackerd_pid == -1) {
247 LOG(log_note, logtype_afpd, "Restarting 'trackerd' (restarts: %u)", trackerd_restarts);
248 if ((trackerd_pid = run_process(TRACKER_RDF_PREFIX "/bin/trackerd", "--verbosity=3", NULL)) == -1) {
249 LOG(log_error, logtype_default, "Error starting '%s'", "/usr/bin/trackerd");
255 /******************************************************************
257 ******************************************************************/
259 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
260 static void kill_childs(int sig, ...)
267 while ((pid = va_arg(args, pid_t *)) != NULL) {
275 /* this get called when error conditions are met that require us to exit gracefully */
276 static void netatalk_exit(int ret)
278 server_unlock(PATH_NETATALK_LOCK);
282 /* this forks() and exec() "path" with varags as argc[] */
283 static pid_t run_process(const char *path, ...)
290 if ((pid = fork()) < 0) {
291 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
296 myargv[i++] = (char *)path;
297 va_start(args, path);
298 while ((myargv[i++] = va_arg(args, char *)) != NULL)
302 ret = execv(path, myargv);
304 /* Yikes! We're still here, so exec failed... */
305 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
311 static void usage(void)
313 printf("usage: netatalk [-F configfile] \n");
316 int main(int argc, char **argv)
318 int c, ret, debug = 0;
322 /* Log SIGBUS/SIGSEGV SBT */
325 while ((c = getopt(argc, argv, ":dF:")) != -1) {
331 obj.cmdlineconfigfile = strdup(optarg);
339 if (check_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
342 if (!debug && daemonize(0, 0) != 0)
345 if (create_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
348 sigfillset(&blocksigs);
349 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
351 if (afp_config_parse(&obj, "netatalk") != 0)
352 netatalk_exit(EXITERR_CONF);
356 event_set_log_callback(libevent_logmsg_cb);
357 event_set_fatal_callback(netatalk_exit);
359 LOG(log_note, logtype_default, "Netatalk AFP server starting");
361 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
362 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
363 netatalk_exit(EXITERR_CONF);
366 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
367 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
368 netatalk_exit(EXITERR_CONF);
371 if ((base = event_base_new()) == NULL) {
372 LOG(log_error, logtype_afpd, "Error starting event loop");
373 netatalk_exit(EXITERR_CONF);
376 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
377 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
378 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
379 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
380 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
385 event_add(sigterm_ev, NULL);
386 event_add(sigquit_ev, NULL);
387 event_add(sigchld_ev, NULL);
388 event_add(timer_ev, &tv);
390 sigfillset(&blocksigs);
391 sigdelset(&blocksigs, SIGTERM);
392 sigdelset(&blocksigs, SIGQUIT);
393 sigdelset(&blocksigs, SIGCHLD);
394 sigdelset(&blocksigs, SIGHUP);
395 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
398 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
399 setenv("XDG_DATA_HOME", _PATH_STATEDIR, 0);
400 setenv("XDG_CACHE_HOME", _PATH_STATEDIR, 0);
401 setenv("XDG_CONFIG_HOME", _PATH_CONFDIR, 0);
404 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/bin/dbus-daemon");
405 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
406 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
407 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
408 netatalk_exit(EXITERR_CONF);
411 /* Allow dbus some time to start up */
414 #ifdef HAVE_TRACKER_SPARQL
416 system(TRACKER_PREFIX "/bin/tracker-control -s");
418 #ifdef HAVE_TRACKER_RDF
419 if ((trackerd_pid = run_process(TRACKER_RDF_PREFIX "/bin/trackerd", "--verbosity=3", NULL)) == -1) {
420 LOG(log_error, logtype_default, "Error starting '%s'", TRACKER_RDF_PREFIX "/bin/trackerd");
421 netatalk_exit(EXITERR_CONF);
425 /* run the event loop */
426 ret = event_base_dispatch(base);
428 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1 || trackerd_pid != -1) {
430 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
431 if (cnid_metad_pid != -1)
432 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
434 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
435 if (trackerd_pid != -1)
436 LOG(log_error, logtype_afpd, "trackerd still running, killing it");
437 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
440 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");