2 * Copyright (c) 1990,1993 Regents of The University of Michigan.
3 * All Rights Reserved. See COPYRIGHT.
8 #endif /* HAVE_CONFIG_H */
14 #include <sys/param.h>
17 #include <sys/socket.h>
21 #include <sys/resource.h>
23 #include <atalk/logger.h>
24 #include <atalk/adouble.h>
25 #include <atalk/compat.h>
26 #include <atalk/dsi.h>
27 #include <atalk/afp.h>
28 #include <atalk/paths.h>
29 #include <atalk/util.h>
30 #include <atalk/server_child.h>
31 #include <atalk/server_ipc.h>
32 #include <atalk/errchk.h>
33 #include <atalk/globals.h>
34 #include <atalk/netatalk_conf.h>
35 #include <atalk/bstrlib.h>
36 #include <atalk/bstradd.h>
38 #include <event2/event.h>
40 /* how many seconds we wait to shutdown from SIGTERM before we send SIGKILL */
41 #define KILL_GRACETIME 5
43 /* forward declaration */
44 static pid_t run_process(const char *path, ...);
45 static void kill_childs(int sig, ...);
47 /* static variables */
49 static sig_atomic_t got_chldsig;
50 static pid_t afpd_pid = -1, cnid_metad_pid = -1, dbus_pid = -1;
51 static uint afpd_restarts, cnid_metad_restarts, dbus_restarts;
52 static struct event_base *base;
53 struct event *sigterm_ev, *sigquit_ev, *sigchld_ev, *timer_ev;
54 static int in_shutdown;
55 static const char *dbus_path;
57 /******************************************************************
59 ******************************************************************/
61 /* Set Tracker Miners to index all our volumes */
62 static int set_sl_volumes(void)
65 const struct vol *volumes, *vol;
66 struct bstrList *vollist = bstrListCreate();
67 bstring sep = bfromcstr(", ");
68 bstring volnamelist = NULL, cmd = NULL;
70 EC_NULL_LOG( volumes = getvolumes() );
72 for (vol = volumes; vol; vol = vol->v_next) {
73 bstring volnamequot = bformat("'%s'", vol->v_path);
74 bstrListPush(vollist, volnamequot);
77 volnamelist = bjoin(vollist, sep);
78 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"", bdata(volnamelist));
79 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
88 bstrListDestroy(vollist);
90 bdestroy(volnamelist);
94 /******************************************************************
95 * libevent helper functions
96 ******************************************************************/
98 /* libevent logging callback */
99 static void libevent_logmsg_cb(int severity, const char *msg)
102 case _EVENT_LOG_DEBUG:
103 LOG(log_debug, logtype_default, "libevent: %s", msg);
106 LOG(log_info, logtype_default, "libevent: %s", msg);
108 case _EVENT_LOG_WARN:
109 LOG(log_warning, logtype_default, "libevent: %s", msg);
112 LOG(log_error, logtype_default, "libevent: %s", msg);
115 LOG(log_error, logtype_default, "libevent: %s", msg);
116 break; /* never reached */
120 /******************************************************************
121 * libevent event callbacks
122 ******************************************************************/
124 /* SIGTERM callback */
125 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
130 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
136 /* block any signal but SIGCHLD */
138 sigdelset(&sigs, SIGCHLD);
139 sigprocmask(SIG_SETMASK, &sigs, NULL);
141 /* add 10 sec timeout timer, remove all events but SIGCHLD */
142 tv.tv_sec = KILL_GRACETIME;
144 event_base_loopexit(base, &tv);
145 event_del(sigterm_ev);
146 event_del(sigquit_ev);
149 system("tracker-control -t");
150 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
153 /* SIGQUIT callback */
154 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
156 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
157 system("tracker-control -t");
158 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
161 /* SIGQUIT callback */
162 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
164 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
165 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, NULL);
168 /* SIGCHLD callback */
169 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
174 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
175 if (WIFEXITED(status)) {
176 if (WEXITSTATUS(status))
177 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
179 LOG(log_info, logtype_default, "child[%d]: done", pid);
181 if (WIFSIGNALED(status))
182 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
184 LOG(log_info, logtype_default, "child[%d]: died", pid);
189 else if (pid == cnid_metad_pid)
191 else if (pid == dbus_pid)
194 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
197 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1)
198 event_base_loopbreak(base);
202 static void timer_cb(evutil_socket_t fd, short what, void *arg)
209 if (afpd_pid == -1) {
211 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
212 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
213 LOG(log_error, logtype_default, "Error starting 'afpd'");
217 if (cnid_metad_pid == -1) {
218 cnid_metad_restarts++;
219 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
220 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
221 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
225 if (dbus_pid == -1) {
227 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
228 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
229 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
234 /******************************************************************
236 ******************************************************************/
238 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
239 static void kill_childs(int sig, ...)
246 while ((pid = va_arg(args, pid_t *)) != NULL) {
254 /* this get called when error conditions are met that require us to exit gracefully */
255 static void netatalk_exit(int ret)
257 server_unlock(_PATH_NETATALK_LOCK);
261 /* this forks() and exec() "path" with varags as argc[] */
262 static pid_t run_process(const char *path, ...)
269 if ((pid = fork()) < 0) {
270 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
275 myargv[i++] = (char *)path;
276 va_start(args, path);
277 while ((myargv[i++] = va_arg(args, char *)) != NULL)
281 ret = execv(path, myargv);
283 /* Yikes! We're still here, so exec failed... */
284 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
290 static void usage(void)
292 printf("usage: netatalk [-F configfile] \n");
295 int main(int argc, char **argv)
297 const char *configfile = NULL;
298 int c, ret, debug = 0;
302 /* Log SIGBUS/SIGSEGV SBT */
305 while ((c = getopt(argc, argv, ":dF:")) != -1) {
311 obj.cmdlineconfigfile = strdup(optarg);
319 if (check_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
322 if (!debug && daemonize(0, 0) != 0)
325 if (create_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
328 sigfillset(&blocksigs);
329 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
331 if (afp_config_parse(&obj, "netatalk") != 0)
332 netatalk_exit(EXITERR_CONF);
336 event_set_log_callback(libevent_logmsg_cb);
337 event_set_fatal_callback(netatalk_exit);
339 LOG(log_note, logtype_default, "Netatalk AFP server starting");
341 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
342 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
343 netatalk_exit(EXITERR_CONF);
346 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
347 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
348 netatalk_exit(EXITERR_CONF);
351 if ((base = event_base_new()) == NULL) {
352 LOG(log_error, logtype_afpd, "Error starting event loop");
353 netatalk_exit(EXITERR_CONF);
356 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
357 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
358 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
359 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
360 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
365 event_add(sigterm_ev, NULL);
366 event_add(sigquit_ev, NULL);
367 event_add(sigchld_ev, NULL);
368 event_add(timer_ev, &tv);
370 sigfillset(&blocksigs);
371 sigdelset(&blocksigs, SIGTERM);
372 sigdelset(&blocksigs, SIGQUIT);
373 sigdelset(&blocksigs, SIGCHLD);
374 sigdelset(&blocksigs, SIGHUP);
375 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
377 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/bin/dbus-daemon");
378 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
379 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
380 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
381 netatalk_exit(EXITERR_CONF);
384 /* Allow dbus some time to start up */
387 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
389 system(TRACKER_PREFIX "/bin/tracker-control -s");
391 /* run the event loop */
392 ret = event_base_dispatch(base);
394 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1) {
396 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
397 if (cnid_metad_pid != -1)
398 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
400 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
401 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
404 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");