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 /* SIGCHLD callback */
162 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
167 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
168 if (WIFEXITED(status)) {
169 if (WEXITSTATUS(status))
170 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
172 LOG(log_info, logtype_default, "child[%d]: done", pid);
174 if (WIFSIGNALED(status))
175 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
177 LOG(log_info, logtype_default, "child[%d]: died", pid);
182 else if (pid == cnid_metad_pid)
184 else if (pid == dbus_pid)
187 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
190 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1)
191 event_base_loopbreak(base);
195 static void timer_cb(evutil_socket_t fd, short what, void *arg)
202 if (afpd_pid == -1) {
204 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
205 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
206 LOG(log_error, logtype_default, "Error starting 'afpd'");
210 if (cnid_metad_pid == -1) {
211 cnid_metad_restarts++;
212 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
213 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
214 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
218 if (dbus_pid == -1) {
220 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
221 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
222 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
227 /******************************************************************
229 ******************************************************************/
231 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
232 static void kill_childs(int sig, ...)
239 while ((pid = va_arg(args, pid_t *)) != NULL) {
247 /* this get called when error conditions are met that require us to exit gracefully */
248 static void netatalk_exit(int ret)
250 server_unlock(_PATH_NETATALK_LOCK);
254 /* this forks() and exec() "path" with varags as argc[] */
255 static pid_t run_process(const char *path, ...)
262 if ((pid = fork()) < 0) {
263 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
268 myargv[i++] = (char *)path;
269 va_start(args, path);
270 while ((myargv[i++] = va_arg(args, char *)) != NULL)
274 ret = execv(path, myargv);
276 /* Yikes! We're still here, so exec failed... */
277 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
283 static void usage(void)
285 printf("usage: netatalk [-F configfile] \n");
288 int main(int argc, char **argv)
290 const char *configfile = NULL;
291 int c, ret, debug = 0;
295 /* Log SIGBUS/SIGSEGV SBT */
298 while ((c = getopt(argc, argv, ":dF:")) != -1) {
304 obj.cmdlineconfigfile = strdup(optarg);
312 if (check_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
315 if (!debug && daemonize(0, 0) != 0)
318 if (create_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
321 sigfillset(&blocksigs);
322 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
324 if (afp_config_parse(&obj, "netatalk") != 0)
325 netatalk_exit(EXITERR_CONF);
327 load_volumes(&obj, NULL);
329 event_set_log_callback(libevent_logmsg_cb);
330 event_set_fatal_callback(netatalk_exit);
332 LOG(log_note, logtype_default, "Netatalk AFP server starting");
334 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
335 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
336 netatalk_exit(EXITERR_CONF);
339 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
340 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
341 netatalk_exit(EXITERR_CONF);
344 if ((base = event_base_new()) == NULL) {
345 LOG(log_error, logtype_afpd, "Error starting event loop");
346 netatalk_exit(EXITERR_CONF);
349 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
350 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
351 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
352 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
357 event_add(sigterm_ev, NULL);
358 event_add(sigquit_ev, NULL);
359 event_add(sigchld_ev, NULL);
360 event_add(timer_ev, &tv);
362 sigfillset(&blocksigs);
363 sigdelset(&blocksigs, SIGTERM);
364 sigdelset(&blocksigs, SIGQUIT);
365 sigdelset(&blocksigs, SIGCHLD);
366 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
368 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/bin/dbus-daemon");
369 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
370 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
371 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
372 netatalk_exit(EXITERR_CONF);
375 /* Allow dbus some time to start up */
378 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
380 system(TRACKER_PREFIX "/bin/tracker-control -s");
382 /* run the event loop */
383 ret = event_base_dispatch(base);
385 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1) {
387 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
388 if (cnid_metad_pid != -1)
389 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
391 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
392 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
395 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");