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;
63 static char *trackerd_loglev;
65 /******************************************************************
67 ******************************************************************/
69 /* Set Tracker Miners to index all our volumes */
70 static int set_sl_volumes(void)
73 const struct vol *volumes, *vol;
74 struct bstrList *vollist = bstrListCreate();
75 bstring sep = bfromcstr(", ");
76 bstring volnamelist = NULL, cmd = NULL;
78 EC_NULL_LOG( volumes = getvolumes() );
80 for (vol = volumes; vol; vol = vol->v_next) {
81 bstring volnamequot = bformat("'%s'", vol->v_path);
82 bstrListPush(vollist, volnamequot);
85 volnamelist = bjoin(vollist, sep);
86 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"", bdata(volnamelist));
87 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
96 bstrListDestroy(vollist);
98 bdestroy(volnamelist);
102 /******************************************************************
103 * libevent helper functions
104 ******************************************************************/
106 /* libevent logging callback */
107 static void libevent_logmsg_cb(int severity, const char *msg)
110 case _EVENT_LOG_DEBUG:
111 LOG(log_debug, logtype_default, "libevent: %s", msg);
114 LOG(log_info, logtype_default, "libevent: %s", msg);
116 case _EVENT_LOG_WARN:
117 LOG(log_warning, logtype_default, "libevent: %s", msg);
120 LOG(log_error, logtype_default, "libevent: %s", msg);
123 LOG(log_error, logtype_default, "libevent: %s", msg);
124 break; /* never reached */
128 /******************************************************************
129 * libevent event callbacks
130 ******************************************************************/
132 /* SIGTERM callback */
133 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
138 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
144 /* block any signal but SIGCHLD */
146 sigdelset(&sigs, SIGCHLD);
147 sigprocmask(SIG_SETMASK, &sigs, NULL);
149 /* add 10 sec timeout timer, remove all events but SIGCHLD */
150 tv.tv_sec = KILL_GRACETIME;
152 event_base_loopexit(base, &tv);
153 event_del(sigterm_ev);
154 event_del(sigquit_ev);
157 #ifdef HAVE_TRACKER_SPARQL
158 system("tracker-control -t");
160 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
163 /* SIGQUIT callback */
164 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
166 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
167 #ifdef HAVE_TRACKER_SPARQL
168 system("tracker-control -t");
170 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
173 /* SIGHUP callback */
174 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
176 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
177 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, &trackerd_pid, NULL);
180 /* SIGCHLD callback */
181 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
186 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
187 if (WIFEXITED(status)) {
188 if (WEXITSTATUS(status))
189 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
191 LOG(log_info, logtype_default, "child[%d]: done", pid);
193 if (WIFSIGNALED(status))
194 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
196 LOG(log_info, logtype_default, "child[%d]: died", pid);
201 else if (pid == cnid_metad_pid)
203 else if (pid == dbus_pid)
205 else if (pid == trackerd_pid)
208 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
211 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1 && trackerd_pid == -1)
212 event_base_loopbreak(base);
216 static void timer_cb(evutil_socket_t fd, short what, void *arg)
221 if (afpd_pid == -1) {
223 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
224 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
225 LOG(log_error, logtype_default, "Error starting 'afpd'");
229 if (cnid_metad_pid == -1) {
230 cnid_metad_restarts++;
231 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
232 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
233 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
237 if (dbus_pid == -1) {
239 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
240 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
241 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
245 #ifdef HAVE_TRACKER_RDF
246 if (trackerd_pid == -1) {
248 LOG(log_note, logtype_afpd, "Restarting 'trackerd' (restarts: %u)", trackerd_restarts);
249 if ((trackerd_pid = run_process(TRACKER_RDF_PREFIX "/bin/trackerd", trackerd_loglev, NULL)) == -1) {
250 LOG(log_error, logtype_default, "Error starting '%s'", "/usr/bin/trackerd");
256 /******************************************************************
258 ******************************************************************/
260 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
261 static void kill_childs(int sig, ...)
268 while ((pid = va_arg(args, pid_t *)) != NULL) {
276 /* this get called when error conditions are met that require us to exit gracefully */
277 static void netatalk_exit(int ret)
279 server_unlock(PATH_NETATALK_LOCK);
283 /* this forks() and exec() "path" with varags as argc[] */
284 static pid_t run_process(const char *path, ...)
288 char *myargv[MYARVSIZE];
292 if ((pid = fork()) < 0) {
293 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
298 myargv[i++] = (char *)path;
299 va_start(args, path);
300 while (i < MYARVSIZE) {
301 if ((myargv[i++] = va_arg(args, char *)) == NULL)
306 ret = execv(path, myargv);
308 /* Yikes! We're still here, so exec failed... */
309 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
315 static void usage(void)
317 printf("usage: netatalk [-F configfile] \n");
320 int main(int argc, char **argv)
322 int c, ret, debug = 0;
326 /* Log SIGBUS/SIGSEGV SBT */
329 while ((c = getopt(argc, argv, ":dF:")) != -1) {
335 obj.cmdlineconfigfile = strdup(optarg);
343 if (check_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
346 if (!debug && daemonize(0, 0) != 0)
349 if (create_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
352 sigfillset(&blocksigs);
353 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
355 if (afp_config_parse(&obj, "netatalk") != 0)
356 netatalk_exit(EXITERR_CONF);
360 event_set_log_callback(libevent_logmsg_cb);
361 event_set_fatal_callback(netatalk_exit);
363 LOG(log_note, logtype_default, "Netatalk AFP server starting");
365 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
366 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
367 netatalk_exit(EXITERR_CONF);
370 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
371 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
372 netatalk_exit(EXITERR_CONF);
375 if ((base = event_base_new()) == NULL) {
376 LOG(log_error, logtype_afpd, "Error starting event loop");
377 netatalk_exit(EXITERR_CONF);
380 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
381 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
382 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
383 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
384 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
389 event_add(sigterm_ev, NULL);
390 event_add(sigquit_ev, NULL);
391 event_add(sigchld_ev, NULL);
392 event_add(timer_ev, &tv);
394 sigfillset(&blocksigs);
395 sigdelset(&blocksigs, SIGTERM);
396 sigdelset(&blocksigs, SIGQUIT);
397 sigdelset(&blocksigs, SIGCHLD);
398 sigdelset(&blocksigs, SIGHUP);
399 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
402 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
403 setenv("XDG_DATA_HOME", _PATH_STATEDIR, 0);
404 setenv("XDG_CACHE_HOME", _PATH_STATEDIR, 0);
405 setenv("XDG_CONFIG_HOME", _PATH_CONFDIR, 0);
408 #ifdef HAVE_TRACKER_RDF
409 /* This assumes Tracker 0.6 with RDF is only used on Solaris and derived platforms */
410 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/usr/lib/dbus-daemon");
412 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/bin/dbus-daemon");
414 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
415 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
416 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
417 netatalk_exit(EXITERR_CONF);
420 /* Allow dbus some time to start up */
423 #ifdef HAVE_TRACKER_SPARQL
425 system(TRACKER_PREFIX "/bin/tracker-control -s");
427 #ifdef HAVE_TRACKER_RDF
428 if (asprintf(&trackerd_loglev, "--verbosity=%d", obj.options.tracker_loglevel) == -1)
429 netatalk_exit(EXITERR_CONF);
430 if ((trackerd_pid = run_process(TRACKER_RDF_PREFIX "/bin/trackerd", trackerd_loglev, NULL)) == -1) {
431 LOG(log_error, logtype_default, "Error starting '%s'", TRACKER_RDF_PREFIX "/bin/trackerd");
432 netatalk_exit(EXITERR_CONF);
436 /* run the event loop */
437 ret = event_base_dispatch(base);
439 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1 || trackerd_pid != -1) {
441 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
442 if (cnid_metad_pid != -1)
443 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
445 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
446 if (trackerd_pid != -1)
447 LOG(log_error, logtype_afpd, "trackerd still running, killing it");
448 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
451 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");