2 * Copyright (c) 2002-2010 M. Warner Losh.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * my_system is a variation on lib/libc/stdlib/system.c:
28 * Copyright (c) 1988, 1993
29 * The Regents of the University of California. All rights reserved.
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 * 3. Neither the name of the University nor the names of its contributors
40 * may be used to endorse or promote products derived from this software
41 * without specific prior written permission.
43 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * DEVD control daemon.
61 // o devd.conf and devd man pages need a lot of help:
62 // - devd needs to document the unix domain socket
63 // - devd.conf needs more details on the supported statements.
65 #include <sys/cdefs.h>
66 __FBSDID("$FreeBSD$");
68 #include <sys/param.h>
69 #include <sys/socket.h>
71 #include <sys/sysctl.h>
72 #include <sys/types.h>
101 #include "devd.h" /* C compatible definitions */
102 #include "devd.hh" /* C++ class definitions */
104 #define STREAMPIPE "/var/run/devd.pipe"
105 #define SEQPACKETPIPE "/var/run/devd.seqpacket.pipe"
106 #define CF "/etc/devd.conf"
107 #define SYSCTL "hw.bus.devctl_queue"
110 * Since the client socket is nonblocking, we must increase its send buffer to
111 * handle brief event storms. On FreeBSD, AF_UNIX sockets don't have a receive
112 * buffer, so the client can't increase the buffersize by itself.
114 * For example, when creating a ZFS pool, devd emits one 165 character
115 * resource.fs.zfs.statechange message for each vdev in the pool. The kernel
116 * allocates a 4608B mbuf for each message. Modern technology places a limit of
117 * roughly 450 drives/rack, and it's unlikely that a zpool will ever be larger
120 * 450 drives * 165 bytes / drive = 74250B of data in the sockbuf
121 * 450 drives * 4608B / drive = 2073600B of mbufs in the sockbuf
123 * We can't directly set the sockbuf's mbuf limit, but we can do it indirectly.
124 * The kernel sets it to the minimum of a hard-coded maximum value and sbcc *
125 * kern.ipc.sockbuf_waste_factor, where sbcc is the socket buffer size set by
126 * the user. The default value of kern.ipc.sockbuf_waste_factor is 8. If we
127 * set the bufsize to 256k and use the kern.ipc.sockbuf_waste_factor, then the
128 * kernel will set the mbuf limit to 2MB, which is just large enough for 450
129 * drives. It also happens to be the same as the hardcoded maximum value.
131 #define CLIENT_BUFSIZE 262144
135 typedef struct client {
143 static const char notify = '!';
144 static const char nomatch = '?';
145 static const char attach = '+';
146 static const char detach = '-';
148 static struct pidfh *pfh;
150 static int no_daemon = 0;
151 static int daemonize_quick = 0;
152 static int quiet_mode = 0;
153 static unsigned total_events = 0;
154 static volatile sig_atomic_t got_siginfo = 0;
155 static volatile sig_atomic_t romeo_must_die = 0;
157 static const char *configfile = CF;
159 static void devdlog(int priority, const char* message, ...)
161 static void event_loop(void);
162 static void usage(void);
164 template <class T> void
165 delete_and_clear(vector<T *> &v)
167 typename vector<T *>::const_iterator i;
169 for (i = v.begin(); i != v.end(); ++i)
176 event_proc::event_proc() : _prio(-1)
181 event_proc::~event_proc()
183 delete_and_clear(_epsvec);
187 event_proc::add(eps *eps)
189 _epsvec.push_back(eps);
193 event_proc::matches(config &c) const
195 vector<eps *>::const_iterator i;
197 for (i = _epsvec.begin(); i != _epsvec.end(); ++i)
198 if (!(*i)->do_match(c))
204 event_proc::run(config &c) const
206 vector<eps *>::const_iterator i;
208 for (i = _epsvec.begin(); i != _epsvec.end(); ++i)
209 if (!(*i)->do_action(c))
214 action::action(const char *cmd)
226 my_system(const char *command)
230 struct sigaction ign, intact, quitact;
231 sigset_t newsigblock, oldsigblock;
233 if (!command) /* just checking... */
237 * Ignore SIGINT and SIGQUIT, block SIGCHLD. Remember to save
238 * existing signal dispositions.
240 ign.sa_handler = SIG_IGN;
241 ::sigemptyset(&ign.sa_mask);
243 ::sigaction(SIGINT, &ign, &intact);
244 ::sigaction(SIGQUIT, &ign, &quitact);
245 ::sigemptyset(&newsigblock);
246 ::sigaddset(&newsigblock, SIGCHLD);
247 ::sigprocmask(SIG_BLOCK, &newsigblock, &oldsigblock);
248 switch (pid = ::fork()) {
253 * Restore original signal dispositions and exec the command.
255 ::sigaction(SIGINT, &intact, NULL);
256 ::sigaction(SIGQUIT, &quitact, NULL);
257 ::sigprocmask(SIG_SETMASK, &oldsigblock, NULL);
259 * Close the PID file, and all other open descriptors.
260 * Inherit std{in,out,err} only.
264 ::execl(_PATH_BSHELL, "sh", "-c", command, (char *)NULL);
266 default: /* parent */
269 pid = ::wait4(savedpid, &pstat, 0, (struct rusage *)0);
270 } while (pid == -1 && errno == EINTR);
273 ::sigaction(SIGINT, &intact, NULL);
274 ::sigaction(SIGQUIT, &quitact, NULL);
275 ::sigprocmask(SIG_SETMASK, &oldsigblock, NULL);
276 return (pid == -1 ? -1 : pstat);
280 action::do_action(config &c)
282 string s = c.expand_string(_cmd.c_str());
283 devdlog(LOG_INFO, "Executing '%s'\n", s.c_str());
284 my_system(s.c_str());
288 match::match(config &c, const char *var, const char *re) :
291 _re(c.expand_string(_inv ? re + 1 : re, "^", "$"))
293 regcomp(&_regex, _re.c_str(), REG_EXTENDED | REG_NOSUB | REG_ICASE);
302 match::do_match(config &c)
304 const string &value = c.get_variable(_var);
308 * This function gets called WAY too often to justify calling syslog()
309 * each time, even at LOG_DEBUG. Because if syslogd isn't running, it
310 * can consume excessive amounts of systime inside of connect(). Only
311 * log when we're in -d mode.
314 devdlog(LOG_DEBUG, "Testing %s=%s against %s, invert=%d\n",
315 _var.c_str(), value.c_str(), _re.c_str(), _inv);
318 retval = (regexec(&_regex, value.c_str(), 0, NULL, 0) == 0);
320 retval = (retval == 0) ? 1 : 0;
325 #include <sys/sockio.h>
327 #include <net/if_media.h>
329 media::media(config &, const char *var, const char *type)
330 : _var(var), _type(-1)
332 static struct ifmedia_description media_types[] = {
333 { IFM_ETHER, "Ethernet" },
334 { IFM_TOKEN, "Tokenring" },
335 { IFM_FDDI, "FDDI" },
336 { IFM_IEEE80211, "802.11" },
341 for (int i = 0; media_types[i].ifmt_string != NULL; ++i)
342 if (strcasecmp(type, media_types[i].ifmt_string) == 0) {
343 _type = media_types[i].ifmt_word;
353 media::do_match(config &c)
356 struct ifmediareq ifmr;
360 // Since we can be called from both a device attach/detach
361 // context where device-name is defined and what we want,
362 // as well as from a link status context, where subsystem is
363 // the name of interest, first try device-name and fall back
364 // to subsystem if none exists.
365 value = c.get_variable("device-name");
367 value = c.get_variable("subsystem");
368 devdlog(LOG_DEBUG, "Testing media type of %s against 0x%x\n",
369 value.c_str(), _type);
373 s = socket(PF_INET, SOCK_DGRAM, 0);
375 memset(&ifmr, 0, sizeof(ifmr));
376 strlcpy(ifmr.ifm_name, value.c_str(), sizeof(ifmr.ifm_name));
378 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0 &&
379 ifmr.ifm_status & IFM_AVALID) {
380 devdlog(LOG_DEBUG, "%s has media type 0x%x\n",
381 value.c_str(), IFM_TYPE(ifmr.ifm_active));
382 retval = (IFM_TYPE(ifmr.ifm_active) == _type);
383 } else if (_type == -1) {
384 devdlog(LOG_DEBUG, "%s has unknown media type\n",
394 const string var_list::bogus = "_$_$_$_$_B_O_G_U_S_$_$_$_$_";
395 const string var_list::nothing = "";
398 var_list::get_variable(const string &var) const
400 map<string, string>::const_iterator i;
403 if (i == _vars.end())
404 return (var_list::bogus);
409 var_list::is_set(const string &var) const
411 return (_vars.find(var) != _vars.end());
416 * Removes quoted characters that have made it this far. \" are
417 * converted to ". For all other characters, both \ and following
418 * character. So the string 'fre\:\"' is translated to 'fred\:"'.
421 var_list::fix_value(const std::string &val) const
424 std::string::size_type pos(0);
426 while ((pos = rv.find("\\\"", pos)) != rv.npos) {
433 var_list::set_variable(const string &var, const string &val)
436 * This function gets called WAY too often to justify calling syslog()
437 * each time, even at LOG_DEBUG. Because if syslogd isn't running, it
438 * can consume excessive amounts of systime inside of connect(). Only
439 * log when we're in -d mode.
441 _vars[var] = fix_value(val);
443 devdlog(LOG_DEBUG, "setting %s=%s\n", var.c_str(), val.c_str());
450 delete_and_clear(_var_list_table);
451 delete_and_clear(_attach_list);
452 delete_and_clear(_detach_list);
453 delete_and_clear(_nomatch_list);
454 delete_and_clear(_notify_list);
458 config::parse_one_file(const char *fn)
460 devdlog(LOG_DEBUG, "Parsing %s\n", fn);
461 yyin = fopen(fn, "r");
463 err(1, "Cannot open config file %s", fn);
466 errx(1, "Cannot parse %s at line %d", fn, lineno);
471 config::parse_files_in_dir(const char *dirname)
477 devdlog(LOG_DEBUG, "Parsing files in %s\n", dirname);
478 dirp = opendir(dirname);
481 readdir(dirp); /* Skip . */
482 readdir(dirp); /* Skip .. */
483 while ((dp = readdir(dirp)) != NULL) {
484 if (strcmp(dp->d_name + dp->d_namlen - 5, ".conf") == 0) {
485 snprintf(path, sizeof(path), "%s/%s",
486 dirname, dp->d_name);
487 parse_one_file(path);
495 int operator()(event_proc *const&l1, event_proc *const&l2) const
497 return (l1->get_priority() > l2->get_priority());
502 config::sort_vector(vector<event_proc *> &v)
504 stable_sort(v.begin(), v.end(), epv_greater());
510 vector<string>::const_iterator i;
512 parse_one_file(configfile);
513 for (i = _dir_list.begin(); i != _dir_list.end(); ++i)
514 parse_files_in_dir((*i).c_str());
515 sort_vector(_attach_list);
516 sort_vector(_detach_list);
517 sort_vector(_nomatch_list);
518 sort_vector(_notify_list);
522 config::open_pidfile()
526 if (_pidfile.empty())
528 pfh = pidfile_open(_pidfile.c_str(), 0600, &otherpid);
531 errx(1, "devd already running, pid: %d", (int)otherpid);
532 warn("cannot open pid file");
537 config::write_pidfile()
544 config::close_pidfile()
551 config::remove_pidfile()
558 config::add_attach(int prio, event_proc *p)
560 p->set_priority(prio);
561 _attach_list.push_back(p);
565 config::add_detach(int prio, event_proc *p)
567 p->set_priority(prio);
568 _detach_list.push_back(p);
572 config::add_directory(const char *dir)
574 _dir_list.push_back(string(dir));
578 config::add_nomatch(int prio, event_proc *p)
580 p->set_priority(prio);
581 _nomatch_list.push_back(p);
585 config::add_notify(int prio, event_proc *p)
587 p->set_priority(prio);
588 _notify_list.push_back(p);
592 config::set_pidfile(const char *fn)
598 config::push_var_table()
603 _var_list_table.push_back(vl);
604 devdlog(LOG_DEBUG, "Pushing table\n");
608 config::pop_var_table()
610 delete _var_list_table.back();
611 _var_list_table.pop_back();
612 devdlog(LOG_DEBUG, "Popping table\n");
616 config::set_variable(const char *var, const char *val)
618 _var_list_table.back()->set_variable(var, val);
622 config::get_variable(const string &var)
624 vector<var_list *>::reverse_iterator i;
626 for (i = _var_list_table.rbegin(); i != _var_list_table.rend(); ++i) {
627 if ((*i)->is_set(var))
628 return ((*i)->get_variable(var));
630 return (var_list::nothing);
634 config::is_id_char(char ch) const
636 return (ch != '\0' && (isalpha(ch) || isdigit(ch) || ch == '_' ||
641 config::expand_one(const char *&src, string &dst)
654 // Not sure if I want to support this or not, so for now we just pass
659 /* If the string ends before ) is matched , return. */
660 while (count > 0 && *src) {
663 else if (*src == '(')
670 // $[^-A-Za-z_*] -> $\1
671 if (!isalpha(*src) && *src != '_' && *src != '-' && *src != '*') {
677 // $var -> replace with value
680 } while (is_id_char(*src));
681 dst.append(get_variable(buffer));
685 config::expand_string(const char *src, const char *prepend, const char *append)
691 * 128 bytes is enough for 2427 of 2438 expansions that happen
692 * while parsing config files, as tested on 2013-01-30.
700 var_at = strchr(src, '$');
701 if (var_at == NULL) {
705 dst.append(src, var_at - src);
707 expand_one(src, dst);
717 config::chop_var(char *&buffer, char *&lhs, char *&rhs) const
723 walker = lhs = buffer;
724 while (is_id_char(*walker))
729 if (*walker == '"') {
732 while (*walker && *walker != '"') {
733 // Skip \" ... We leave it in the string and strip the \ later.
734 // due to the super simplistic parser that we have here.
735 if (*walker == '\\' && walker[1] == '"')
745 while (*walker && !isspace(*walker))
751 while (isspace(*walker))
759 config::set_vars(char *buffer)
765 if (!chop_var(buffer, lhs, rhs))
767 set_variable(lhs, rhs);
773 config::find_and_execute(char type)
775 vector<event_proc *> *l;
776 vector<event_proc *>::const_iterator i;
799 devdlog(LOG_DEBUG, "Processing %s event\n", s);
800 for (i = l->begin(); i != l->end(); ++i) {
801 if ((*i)->matches(*this)) {
811 process_event(char *buffer)
819 devdlog(LOG_INFO, "Processing event '%s'\n", buffer);
821 cfg.push_var_table();
822 // $* is the entire line
823 cfg.set_variable("*", buffer - 1);
824 // $_ is the entire line without the initial character
825 cfg.set_variable("_", buffer);
827 // Save the time this happened (as approximated by when we got
828 // around to processing it).
829 gettimeofday(&tv, NULL);
830 asprintf(×tr, "%jd.%06ld", (uintmax_t)tv.tv_sec, tv.tv_usec);
831 cfg.set_variable("timestamp", timestr);
834 // Match doesn't have a device, and the format is a little
835 // different, so handle it separately.
839 sp = cfg.set_vars(sp);
842 //? at location pnp-info on bus
843 sp = strchr(sp, ' ');
845 return; /* Can't happen? */
849 if (strncmp(sp, "at ", 3) == 0)
851 sp = cfg.set_vars(sp);
854 if (strncmp(sp, "on ", 3) == 0)
855 cfg.set_variable("bus", sp + 3);
857 case attach: /*FALLTHROUGH*/
859 sp = strchr(sp, ' ');
861 return; /* Can't happen? */
863 cfg.set_variable("device-name", buffer);
866 if (strncmp(sp, "at ", 3) == 0)
868 sp = cfg.set_vars(sp);
871 if (strncmp(sp, "on ", 3) == 0)
872 cfg.set_variable("bus", sp + 3);
876 cfg.find_and_execute(type);
881 create_socket(const char *name, int socktype)
884 struct sockaddr_un sun;
886 if ((fd = socket(PF_LOCAL, socktype, 0)) < 0)
888 bzero(&sun, sizeof(sun));
889 sun.sun_family = AF_UNIX;
890 strlcpy(sun.sun_path, name, sizeof(sun.sun_path));
891 slen = SUN_LEN(&sun);
893 if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
895 if (::bind(fd, (struct sockaddr *) & sun, slen) < 0)
898 if (chown(name, 0, 0)) /* XXX - root.wheel */
900 if (chmod(name, 0666))
905 unsigned int max_clients = 10; /* Default, can be overridden on cmdline. */
906 unsigned int num_clients;
908 list<client_t> clients;
911 notify_clients(const char *data, int len)
913 list<client_t>::iterator i;
916 * Deliver the data to all clients. Throw clients overboard at the
917 * first sign of trouble. This reaps clients who've died or closed
918 * their sockets, and also clients who are alive but failing to keep up
919 * (or who are maliciously not reading, to consume buffer space in
920 * kernel memory or tie up the limited number of available connections).
922 for (i = clients.begin(); i != clients.end(); ) {
924 if (i->socktype == SOCK_SEQPACKET)
929 if (send(i->fd, data, len, flags) != len) {
932 i = clients.erase(i);
933 devdlog(LOG_WARNING, "notify_clients: send() failed; "
934 "dropping unresponsive client\n");
945 list<client_t>::iterator i;
948 * Check all existing clients to see if any of them have disappeared.
949 * Normally we reap clients when we get an error trying to send them an
950 * event. This check eliminates the problem of an ever-growing list of
951 * zombie clients because we're never writing to them on a system
952 * without frequent device-change activity.
955 for (i = clients.begin(); i != clients.end(); ) {
957 s = poll(&pfd, 1, 0);
958 if ((s < 0 && s != EINTR ) ||
959 (s > 0 && (pfd.revents & POLLHUP))) {
962 i = clients.erase(i);
963 devdlog(LOG_NOTICE, "check_clients: "
964 "dropping disconnected client\n");
971 new_client(int fd, int socktype)
977 * First go reap any zombie clients, then accept the connection, and
978 * shut down the read side to stop clients from consuming kernel memory
979 * by sending large buffers full of data we'll never read.
982 s.socktype = socktype;
983 s.fd = accept(fd, NULL, NULL);
985 sndbuf_size = CLIENT_BUFSIZE;
986 if (setsockopt(s.fd, SOL_SOCKET, SO_SNDBUF, &sndbuf_size,
987 sizeof(sndbuf_size)))
988 err(1, "setsockopt");
989 shutdown(s.fd, SHUT_RD);
990 clients.push_back(s);
1001 char buffer[DEVCTL_MAXBUF];
1003 int stream_fd, seqpacket_fd, max_fd;
1008 fd = open(PATH_DEVCTL, O_RDONLY | O_CLOEXEC);
1010 err(1, "Can't open devctl device %s", PATH_DEVCTL);
1011 stream_fd = create_socket(STREAMPIPE, SOCK_STREAM);
1012 seqpacket_fd = create_socket(SEQPACKETPIPE, SOCK_SEQPACKET);
1014 max_fd = max(fd, max(stream_fd, seqpacket_fd)) + 1;
1015 while (!romeo_must_die) {
1016 if (!once && !no_daemon && !daemonize_quick) {
1017 // Check to see if we have any events pending.
1022 rv = select(fd + 1, &fds, &fds, &fds, &tv);
1023 // No events -> we've processed all pending events
1025 devdlog(LOG_DEBUG, "Calling daemon\n");
1026 cfg.remove_pidfile();
1029 cfg.write_pidfile();
1034 * When we've already got the max number of clients, stop
1035 * accepting new connections (don't put the listening sockets in
1036 * the set), shrink the accept() queue to reject connections
1037 * quickly, and poll the existing clients more often, so that we
1038 * notice more quickly when any of them disappear to free up
1043 if (num_clients < max_clients) {
1045 listen(stream_fd, max_clients);
1046 listen(seqpacket_fd, max_clients);
1049 FD_SET(stream_fd, &fds);
1050 FD_SET(seqpacket_fd, &fds);
1055 listen(stream_fd, 0);
1056 listen(seqpacket_fd, 0);
1062 rv = select(max_fd, &fds, NULL, NULL, &tv);
1064 devdlog(LOG_NOTICE, "Events received so far=%u\n",
1074 if (FD_ISSET(fd, &fds)) {
1075 rv = read(fd, buffer, sizeof(buffer) - 1);
1078 if (rv == sizeof(buffer) - 1) {
1079 devdlog(LOG_WARNING, "Warning: "
1080 "available event data exceeded "
1083 notify_clients(buffer, rv);
1085 while (buffer[--rv] == '\n')
1088 process_event(buffer);
1090 catch (std::length_error e) {
1091 devdlog(LOG_ERR, "Dropping event %s "
1092 "due to low memory", buffer);
1094 } else if (rv < 0) {
1102 if (FD_ISSET(stream_fd, &fds))
1103 new_client(stream_fd, SOCK_STREAM);
1105 * Aside from the socket type, both sockets use the same
1106 * protocol, so we can process clients the same way.
1108 if (FD_ISSET(seqpacket_fd, &fds))
1109 new_client(seqpacket_fd, SOCK_SEQPACKET);
1111 close(seqpacket_fd);
1117 * functions that the parser uses.
1120 add_attach(int prio, event_proc *p)
1122 cfg.add_attach(prio, p);
1126 add_detach(int prio, event_proc *p)
1128 cfg.add_detach(prio, p);
1132 add_directory(const char *dir)
1134 cfg.add_directory(dir);
1135 free(const_cast<char *>(dir));
1139 add_nomatch(int prio, event_proc *p)
1141 cfg.add_nomatch(prio, p);
1145 add_notify(int prio, event_proc *p)
1147 cfg.add_notify(prio, p);
1151 add_to_event_proc(event_proc *ep, eps *eps)
1154 ep = new event_proc();
1160 new_action(const char *cmd)
1162 eps *e = new action(cmd);
1163 free(const_cast<char *>(cmd));
1168 new_match(const char *var, const char *re)
1170 eps *e = new match(cfg, var, re);
1171 free(const_cast<char *>(var));
1172 free(const_cast<char *>(re));
1177 new_media(const char *var, const char *re)
1179 eps *e = new media(cfg, var, re);
1180 free(const_cast<char *>(var));
1181 free(const_cast<char *>(re));
1186 set_pidfile(const char *name)
1188 cfg.set_pidfile(name);
1189 free(const_cast<char *>(name));
1193 set_variable(const char *var, const char *val)
1195 cfg.set_variable(var, val);
1196 free(const_cast<char *>(var));
1197 free(const_cast<char *>(val));
1209 * SIGINFO handler. Will print useful statistics to the syslog or stderr
1219 * Local logging function. Prints to syslog if we're daemonized; stderr
1223 devdlog(int priority, const char* fmt, ...)
1227 va_start(argp, fmt);
1229 vfprintf(stderr, fmt, argp);
1230 else if (quiet_mode == 0 || priority <= LOG_WARNING)
1231 vsyslog(priority, fmt, argp);
1238 fprintf(stderr, "usage: %s [-dnq] [-l connlimit] [-f file]\n",
1244 check_devd_enabled()
1250 if (sysctlbyname(SYSCTL, &val, &len, NULL, 0) != 0)
1251 errx(1, "devctl sysctl missing from kernel!");
1253 warnx("Setting " SYSCTL " to 1000");
1255 if (sysctlbyname(SYSCTL, NULL, NULL, &val, sizeof(val)))
1256 err(1, "sysctlbyname");
1264 main(int argc, char **argv)
1268 check_devd_enabled();
1269 while ((ch = getopt(argc, argv, "df:l:nq")) != -1) {
1275 configfile = optarg;
1278 max_clients = MAX(1, strtoul(optarg, NULL, 0));
1281 daemonize_quick = 1;
1292 if (!no_daemon && daemonize_quick) {
1295 cfg.write_pidfile();
1297 signal(SIGPIPE, SIG_IGN);
1298 signal(SIGHUP, gensighand);
1299 signal(SIGINT, gensighand);
1300 signal(SIGTERM, gensighand);
1301 signal(SIGINFO, siginfohand);