2 * Copyright (c) 1998,1999 Martin Husemann. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * 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.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 * 4. Altered versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software and/or documentation.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 *---------------------------------------------------------------------------
33 * i4b daemon - network monitor server module
34 * ------------------------------------------
36 * $Id: monitor.c,v 1.30 2000/10/09 12:53:29 hm Exp $
38 * $FreeBSD: src/usr.sbin/i4b/isdnd/monitor.c,v 1.6.2.2 2001/08/01 17:45:03 obrien Exp $
39 * $DragonFly: src/usr.sbin/i4b/isdnd/monitor.c,v 1.2 2003/06/17 04:29:54 dillon Exp $
41 * last edit-date: [Mon Dec 13 21:47:44 1999]
43 *---------------------------------------------------------------------------*/
47 #ifndef I4B_EXTERNAL_MONITOR
50 * dummy version of routines needed by config file parser
51 * (config files should be valid with and without external montioring
52 * support compiled into the daemon)
55 void monitor_clear_rights()
58 int monitor_start_rights(const char *clientspec)
61 void monitor_add_rights(int rights_mask)
64 void monitor_fixup_rights()
70 #include <sys/socket.h>
72 #ifndef I4B_NOTCPIP_MONITOR
73 #include <netinet/in.h>
74 #include <arpa/inet.h>
79 static TAILQ_HEAD(rights_q, monitor_rights) rights = TAILQ_HEAD_INITIALIZER(rights);
81 static struct monitor_rights * local_rights = NULL; /* entry for local socket */
83 /* for each active monitor connection we have one of this: */
85 struct monitor_connection {
86 TAILQ_ENTRY(monitor_connection) connections;
87 int sock; /* socket for this connection */
88 int rights; /* active rights for this connection */
89 int events; /* bitmask of events client is interested in */
90 char source[FILENAME_MAX];
93 static TAILQ_HEAD(connections_tq, monitor_connection) connections = TAILQ_HEAD_INITIALIZER(connections);
95 /* local prototypes */
96 static int cmp_rights(const struct monitor_rights *pa, const struct monitor_rights *pb);
97 static int monitor_command(struct monitor_connection *con, int fd, int rights);
98 static void cmd_dump_rights(int fd, int rights, u_int8_t *cmd, const char * source);
99 static void cmd_dump_mcons(int fd, int rights, u_int8_t *cmd, const char * source);
100 static void cmd_reread_cfg(int fd, int rights, u_int8_t *cmd, const char * source);
101 static void cmd_hangup(int fd, int rights, u_int8_t *cmd, const char * source);
102 static void monitor_broadcast(int mask, u_int8_t *pkt, size_t bytes);
103 static int anybody(int mask);
104 static void hangup_channel(int controller, int channel, const char *source);
105 static ssize_t sock_read(int fd, void *buf, size_t nbytes);
106 static ssize_t sock_write(int fd, void *buf, size_t nbytes);
109 * Due to the way we structure config files, the rights for an external
110 * monitor might be stated in multiple steps. First a call to
111 * monitor_start_rights opens an entry. Further (optional) calls to
112 * montior_add_rights assemble additional rights for this "current"
113 * entry. When closing the sys-file section of the config file, the
114 * "current" entry becomes invalid.
116 static struct monitor_rights * cur_add_entry = NULL;
118 /*---------------------------------------------------------------------------
119 * Initialize the monitor server module. This affects only active
120 * connections, the access rights are not modified here!
121 *---------------------------------------------------------------------------*/
125 struct monitor_connection * con;
127 while ((con = TAILQ_FIRST(&connections)) != NULL)
129 TAILQ_REMOVE(&connections, con, connections);
134 /*---------------------------------------------------------------------------
136 *---------------------------------------------------------------------------*/
140 struct monitor_connection *c;
142 /* Close all open connections. */
143 while((c = TAILQ_FIRST(&connections)) != NULL) {
145 TAILQ_REMOVE(&connections, c, connections);
150 /*---------------------------------------------------------------------------
151 * Initialize access rights. No active connections are affected!
152 *---------------------------------------------------------------------------*/
154 monitor_clear_rights(void)
156 struct monitor_rights *r;
157 while ((r = TAILQ_FIRST(&rights)) != NULL) {
158 TAILQ_REMOVE(&rights, r, list);
161 cur_add_entry = NULL;
165 /*---------------------------------------------------------------------------
166 * Add an entry to the access lists. The clientspec either is
167 * the name of the local socket or a host- or networkname or
168 * numeric ip/host-bit-len spec.
169 *---------------------------------------------------------------------------*/
171 monitor_start_rights(const char *clientspec)
173 struct monitor_rights r;
175 /* initialize the new rights entry */
177 memset(&r, 0, sizeof r);
179 /* check clientspec */
181 if (*clientspec == '/')
183 struct sockaddr_un sa;
185 /* this is a local socket spec, check if we already have one */
187 if (local_rights != NULL)
190 /* does it fit in a local socket address? */
192 if (strlen(clientspec) > sizeof sa.sun_path)
193 return I4BMAR_LENGTH;
196 strcpy(r.name, clientspec);
198 #ifndef I4B_NOTCPIP_MONITOR
203 /* remote entry, parse host/net and cidr */
205 struct monitor_rights * rp;
206 char hostname[FILENAME_MAX];
209 p = strchr(clientspec, '/');
213 struct hostent *host;
216 /* must be a host spec */
219 host = gethostbyname(clientspec);
224 memcpy(&hn, host->h_addr_list[0], sizeof hn);
225 r.net = (u_int32_t)ntohl(hn);
229 /* must be net/cidr spec */
234 int num = strtol(p+1, NULL, 10);
236 if (num < 0 || num > 32)
243 if (l >= sizeof hostname)
244 return I4BMAR_LENGTH;
246 strncpy(hostname, clientspec, l);
250 net = getnetbyname(hostname);
253 r.net = (u_int32_t)inet_network(hostname);
255 r.net = (u_int32_t)net->n_net;
265 /* check for duplicate entry */
267 for (rp = TAILQ_FIRST(&rights); rp != NULL; rp = TAILQ_NEXT(rp, list))
269 if (rp->mask == r.mask &&
271 rp->local == r.local)
281 /* entry ok, add it to the collection */
283 cur_add_entry = malloc(sizeof(r));
284 memcpy(cur_add_entry, &r, sizeof(r));
285 TAILQ_INSERT_TAIL(&rights, cur_add_entry, list);
288 local_rights = cur_add_entry;
290 DBGL(DL_RCCF, (log(LL_DBG, "system: monitor = %s", clientspec)));
295 /*---------------------------------------------------------------------------
296 * Add rights to the currently constructed entry - if any.
297 *---------------------------------------------------------------------------*/
299 monitor_add_rights(int rights_mask)
301 if(cur_add_entry == NULL)
302 return; /* noone under construction */
304 cur_add_entry->rights |= rights_mask;
306 DBGL(DL_RCCF, (log(LL_DBG, "system: monitor-access = 0x%x", rights_mask)));
309 /*---------------------------------------------------------------------------
310 * All rights have been added now. Sort the to get most specific
311 * host/net masks first, so we can travel the list and use the first
312 * match for actual rights.
313 *---------------------------------------------------------------------------*/
315 monitor_fixup_rights(void)
317 struct monitor_rights * cur, * test, * next;
319 /* no more rights may be added to the current entry */
321 cur_add_entry = NULL;
323 /* sort the rights */
324 for (next = NULL, cur = TAILQ_FIRST(&rights); cur != NULL; cur = next)
326 next = TAILQ_NEXT(cur, list);
327 for (test = TAILQ_FIRST(&rights); test != NULL && test != cur; test = TAILQ_NEXT(test, list))
329 if (cmp_rights(cur, test) > 0) {
330 /* move cur up the list and insert before test */
331 TAILQ_REMOVE(&rights, cur, list);
332 if (test == TAILQ_FIRST(&rights))
333 TAILQ_INSERT_HEAD(&rights, cur, list);
335 TAILQ_INSERT_BEFORE(test, cur, list);
342 /*---------------------------------------------------------------------------
343 * comparator for rights
344 *---------------------------------------------------------------------------*/
346 cmp_rights(const struct monitor_rights *pa, const struct monitor_rights *pb)
350 /* local sorts first */
355 /* which is the less specific netmask? */
359 if ((pb->mask & mask) == 0)
362 /* are the entries disjunct? */
364 if ((pa->net & mask) != (pb->net & mask))
366 /* simply compare net part of address */
367 return ((pa->net & mask) < (pb->net & mask)) ? -1 : 1;
370 /* One entry is part of the others net. We already now "mask" is
371 * the netmask of the less specific (i.e. greater) one */
373 return (pa->mask == mask) ? 1 : -1;
376 #ifndef I4B_NOTCPIP_MONITOR
377 /*---------------------------------------------------------------------------
378 * Check if access rights for a remote socket are specified and
379 * create this socket. Return -1 otherwise.
380 *---------------------------------------------------------------------------*/
382 monitor_create_remote_socket(int portno)
384 struct sockaddr_in sa;
388 remotesockfd = socket(AF_INET, SOCK_STREAM, 0);
390 if(remotesockfd == -1)
392 log(LL_MER, "could not create remote monitor socket: %s", strerror(errno));
398 if(setsockopt(remotesockfd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof val))
400 log(LL_MER, "could not setsockopt: %s", strerror(errno));
404 memset(&sa, 0, sizeof sa);
405 sa.sin_len = sizeof sa;
406 sa.sin_family = AF_INET;
407 sa.sin_port = htons(portno);
408 sa.sin_addr.s_addr = htonl(INADDR_ANY);
410 if(bind(remotesockfd, (struct sockaddr *)&sa, sizeof sa) == -1)
412 log(LL_MER, "could not bind remote monitor socket to port %d: %s", portno, strerror(errno));
416 if(listen(remotesockfd, 0))
418 log(LL_MER, "could not listen on monitor socket: %s", strerror(errno));
422 return(remotesockfd);
426 /*---------------------------------------------------------------------------
427 * Check if access rights for a local socket are specified and
428 * create this socket. Return -1 otherwise.
429 *---------------------------------------------------------------------------*/
431 monitor_create_local_socket(void)
434 struct sockaddr_un sa;
436 /* check for a local entry */
438 if (local_rights == NULL)
441 /* create and setup socket */
443 s = socket(AF_LOCAL, SOCK_STREAM, 0);
447 log(LL_MER, "could not create local monitor socket, errno = %d", errno);
451 unlink(local_rights->name);
453 memset(&sa, 0, sizeof sa);
454 sa.sun_len = sizeof sa;
455 sa.sun_family = AF_LOCAL;
456 strcpy(sa.sun_path, local_rights->name);
458 if (bind(s, (struct sockaddr *)&sa, SUN_LEN(&sa)))
460 log(LL_MER, "could not bind local monitor socket [%s], errno = %d", local_rights->name, errno);
464 chmod(local_rights->name, 0500);
468 log(LL_MER, "could not listen on local monitor socket, errno = %d", errno);
475 /*---------------------------------------------------------------------------
476 * Prepare a fd_set for a select call. Add all our local
477 * filedescriptors to the set, increment max_fd if appropriate.
478 *---------------------------------------------------------------------------*/
480 monitor_prepselect(fd_set *selset, int *max_fd)
482 struct monitor_connection * con;
484 for (con = TAILQ_FIRST(&connections); con != NULL; con = TAILQ_NEXT(con, connections))
495 /*---------------------------------------------------------------------------
496 * Check if the result from a select call indicates something
498 *---------------------------------------------------------------------------*/
500 monitor_handle_input(fd_set *selset)
502 struct monitor_connection * con, * next;
504 for (next = NULL, con = TAILQ_FIRST(&connections); con != NULL; con = next)
507 next = TAILQ_NEXT(con, connections);
509 if (FD_ISSET(fd, selset))
511 /* handle command from this client */
513 if (monitor_command(con, fd, con->rights) != 0)
515 /* broken or closed connection */
517 char source[FILENAME_MAX];
519 strcpy(source, con->source);
520 TAILQ_REMOVE(&connections, con, connections);
522 log(LL_DMN, "monitor closed from %s", source );
527 /* all connections gone? */
529 if (TAILQ_FIRST(&connections) == NULL)
533 /*---------------------------------------------------------------------------
534 * Try new incoming connection on the given socket.
535 * Setup client descriptor and send initial data.
536 *---------------------------------------------------------------------------*/
538 monitor_handle_connect(int sockfd, int is_local)
540 struct monitor_connection *con;
541 struct monitor_rights *rp;
543 #ifndef I4B_NOTCPIP_MONITOR
544 struct sockaddr_in ia;
548 struct sockaddr_un ua;
549 u_int8_t idata[I4B_MON_IDATA_SIZE];
550 int fd = -1, s, i, r_mask, t_events;
551 char source[FILENAME_MAX];
553 /* accept the connection */
558 fd = accept(sockfd, (struct sockaddr *)&ua, &s);
559 strcpy(source, "local");
561 #ifndef I4B_NOTCPIP_MONITOR
568 fd = accept(sockfd, (struct sockaddr *)&ia, &s);
570 hp = gethostbyaddr((char *)&ia.sin_addr, 4, AF_INET);
573 snprintf(source, sizeof source, "%s (%s)", inet_ntoa(ia.sin_addr), inet_ntoa(ia.sin_addr));
575 snprintf(source, sizeof source, "%s (%s)", hp->h_name, inet_ntoa(ia.sin_addr));
577 memcpy(&ha, &ia.sin_addr.s_addr, sizeof ha);
583 /* check the access rights of this connection */
587 for (rp = TAILQ_FIRST(&rights); rp != NULL; rp = TAILQ_NEXT(rp, list))
597 #ifndef I4B_NOTCPIP_MONITOR
601 if((ha & rp->mask) == rp->net)
612 /* no rights - go away */
613 log(LL_MER, "monitor access denied from %s", source);
620 con = malloc(sizeof(struct monitor_connection));
621 memset(con, 0, sizeof *con);
622 TAILQ_INSERT_TAIL(&connections, con, connections);
624 con->rights = r_mask;
625 strcpy(con->source, source);
627 log(LL_DMN, "monitor opened from %s rights 0x%x", source, r_mask);
629 /* send initial data */
630 I4B_PREP_CMD(idata, I4B_MON_IDATA_CODE);
631 I4B_PUT_2B(idata, I4B_MON_IDATA_VERSMAJOR, MPROT_VERSION);
632 I4B_PUT_2B(idata, I4B_MON_IDATA_VERSMINOR, MPROT_REL);
633 I4B_PUT_2B(idata, I4B_MON_IDATA_NUMCTRL, ncontroller);
634 I4B_PUT_2B(idata, I4B_MON_IDATA_NUMENTR, nentries);
635 I4B_PUT_4B(idata, I4B_MON_IDATA_CLACCESS, r_mask);
637 if((sock_write(fd, idata, sizeof idata)) == -1)
639 log(LL_MER, "monitor_handle_connect: sock_write 1 error - %s", strerror(errno));
642 for (i = 0; i < ncontroller; i++)
644 u_int8_t ictrl[I4B_MON_ICTRL_SIZE];
646 I4B_PREP_CMD(ictrl, I4B_MON_ICTRL_CODE);
647 I4B_PUT_STR(ictrl, I4B_MON_ICTRL_NAME, name_of_controller(isdn_ctrl_tab[i].ctrl_type, isdn_ctrl_tab[i].card_type));
648 I4B_PUT_2B(ictrl, I4B_MON_ICTRL_BUSID, 0);
649 I4B_PUT_4B(ictrl, I4B_MON_ICTRL_FLAGS, 0);
650 I4B_PUT_4B(ictrl, I4B_MON_ICTRL_NCHAN, 2);
652 if((sock_write(fd, ictrl, sizeof ictrl)) == -1)
654 log(LL_MER, "monitor_handle_connect: sock_write 2 error - %s", strerror(errno));
659 /* send device names from entries */
661 for(i=0; i < nentries; i++) /* walk thru all entries */
663 u_int8_t ictrl[I4B_MON_IDEV_SIZE];
666 p = &cfg_entry_tab[i]; /* get ptr to enry */
668 snprintf(nbuf, sizeof(nbuf), "%s%d ", bdrivername(p->usrdevicename), p->usrdeviceunit);
670 I4B_PREP_CMD(ictrl, I4B_MON_IDEV_CODE);
671 /*XXX*/ I4B_PUT_2B(ictrl, I4B_MON_IDEV_STATE, 1);
672 I4B_PUT_STR(ictrl, I4B_MON_IDEV_NAME, nbuf);
674 if((sock_write(fd, ictrl, sizeof ictrl)) == -1)
676 log(LL_MER, "monitor_handle_connect: sock_write 3 error - %s", strerror(errno));
680 /*XXX*/ t_events = con->events;
681 /*XXX*/ con->events = -1;
683 /* current state of controller(s) */
685 for(i=0; i < ncontroller; i++)
687 monitor_evnt_tei(i, isdn_ctrl_tab[i].tei);
688 monitor_evnt_l12stat(i, LAYER_ONE, isdn_ctrl_tab[i].l1stat);
689 monitor_evnt_l12stat(i, LAYER_TWO, isdn_ctrl_tab[i].l2stat);
692 /* current state of entries */
694 for(i=0; i < nentries; i++)
696 cfg_entry_t *cep = &cfg_entry_tab[i];
698 if(cep->state == ST_CONNECTED)
700 monitor_evnt_connect(cep);
701 monitor_evnt_acct(cep);
702 monitor_evnt_charge(cep, cep->charge, 1);
706 /*XXX*/ con->events = t_events;
710 /*---------------------------------------------------------------------------
711 * dump all monitor rights
712 *---------------------------------------------------------------------------*/
714 cmd_dump_rights(int fd, int r_mask, u_int8_t *cmd, const char *source)
716 struct monitor_rights * r;
718 u_int8_t drini[I4B_MON_DRINI_SIZE];
719 u_int8_t dr[I4B_MON_DR_SIZE];
721 for (num_rights = 0, r = TAILQ_FIRST(&rights); r != NULL; r = TAILQ_NEXT(r, list))
724 I4B_PREP_EVNT(drini, I4B_MON_DRINI_CODE);
725 I4B_PUT_2B(drini, I4B_MON_DRINI_COUNT, num_rights);
727 if((sock_write(fd, drini, sizeof drini)) == -1)
729 log(LL_MER, "cmd_dump_rights: sock_write 1 error - %s", strerror(errno));
732 for (r = TAILQ_FIRST(&rights); r != NULL; r = TAILQ_NEXT(r, list))
734 I4B_PREP_EVNT(dr, I4B_MON_DR_CODE);
735 I4B_PUT_4B(dr, I4B_MON_DR_RIGHTS, r->rights);
736 I4B_PUT_4B(dr, I4B_MON_DR_NET, r->net);
737 I4B_PUT_4B(dr, I4B_MON_DR_MASK, r->mask);
738 I4B_PUT_1B(dr, I4B_MON_DR_LOCAL, r->local);
739 if((sock_write(fd, dr, sizeof dr)) == -1)
741 log(LL_MER, "cmd_dump_rights: sock_write 2 error - %s", strerror(errno));
746 /*---------------------------------------------------------------------------
748 *---------------------------------------------------------------------------*/
750 cmd_reread_cfg(int fd, int rights, u_int8_t *cmd, const char * source)
755 /*---------------------------------------------------------------------------
756 * drop one connection
757 *---------------------------------------------------------------------------*/
759 cmd_hangup(int fd, int rights, u_int8_t *cmd, const char * source)
761 int channel = I4B_GET_4B(cmd, I4B_MON_HANGUP_CHANNEL);
762 int ctrl = I4B_GET_4B(cmd, I4B_MON_HANGUP_CTRL);
764 hangup_channel(ctrl, channel, source);
767 /*---------------------------------------------------------------------------
768 * dump all active monitor connections
769 *---------------------------------------------------------------------------*/
771 cmd_dump_mcons(int fd, int rights, u_int8_t *cmd, const char * source)
774 struct monitor_connection *con;
775 u_int8_t dcini[I4B_MON_DCINI_SIZE];
777 for (num_connections = 0, con = TAILQ_FIRST(&connections); con != NULL; con = TAILQ_NEXT(con, connections))
780 I4B_PREP_EVNT(dcini, I4B_MON_DCINI_CODE);
781 I4B_PUT_2B(dcini, I4B_MON_DCINI_COUNT, num_connections);
783 if((sock_write(fd, dcini, sizeof dcini)) == -1)
785 log(LL_MER, "cmd_dump_mcons: sock_write 1 error - %s", strerror(errno));
788 for (con = TAILQ_FIRST(&connections); con != NULL; con = TAILQ_NEXT(con, connections))
790 #ifndef I4B_NOTCPIP_MONITOR
792 struct sockaddr_in name;
794 u_int8_t dc[I4B_MON_DC_SIZE];
796 I4B_PREP_EVNT(dc, I4B_MON_DC_CODE);
797 I4B_PUT_4B(dc, I4B_MON_DC_RIGHTS, con->rights);
799 #ifndef I4B_NOTCPIP_MONITOR
800 namelen = sizeof name;
802 if (getpeername(con->sock, (struct sockaddr*)&name, &namelen) == 0)
803 memcpy(dc+I4B_MON_DC_WHO, &name.sin_addr, sizeof name.sin_addr);
805 if((sock_write(fd, dc, sizeof dc)) == -1)
807 log(LL_MER, "cmd_dump_mcons: sock_write 2 error - %s", strerror(errno));
812 /*---------------------------------------------------------------------------
813 * Handle a command from the given socket. The client
814 * has rights as specified in the rights parameter.
815 * Return non-zero if connection is closed.
816 *---------------------------------------------------------------------------*/
818 monitor_command(struct monitor_connection * con, int fd, int rights)
820 char cmd[I4B_MAX_MON_CLIENT_CMD];
823 /* command dispatch table */
824 typedef void (*cmd_func_t)(int fd, int rights, u_int8_t *cmd, const char *source);
827 cmd_func_t call; /* function to execute */
828 u_int rights; /* necessary rights */
832 /* 1 */ { cmd_dump_rights, I4B_CA_COMMAND_FULL },
833 /* 2 */ { cmd_dump_mcons, I4B_CA_COMMAND_FULL },
834 /* 3 */ { cmd_reread_cfg, I4B_CA_COMMAND_FULL },
835 /* 4 */ { cmd_hangup, I4B_CA_COMMAND_FULL },
837 #define NUMCMD (sizeof cmd_tab / sizeof cmd_tab[0])
842 /* Network transfer may deliver two or more packets concatenated.
843 * Peek at the header and read only one event at a time... */
845 ioctl(fd, FIONREAD, &u);
847 if (u < I4B_MON_CMD_HDR)
851 /* log(LL_MER, "monitor read 0 bytes"); */
852 /* socket closed by peer */
856 return 0; /* not enough data there yet */
859 bytes = recv(fd, cmd, I4B_MON_CMD_HDR, MSG_PEEK);
861 if (bytes < I4B_MON_CMD_HDR)
863 log(LL_MER, "monitor read only %d bytes", bytes);
864 return 0; /* errh? something must be wrong... */
867 bytes = I4B_GET_2B(cmd, I4B_MON_CMD_LEN);
869 if (bytes >= sizeof cmd)
872 log(LL_MER, "monitor: garbage on connection");
876 /* now we know the size, it fits, so lets read it! */
878 if(sock_read(fd, cmd, bytes) <= 0)
880 log(LL_MER, "monitor: sock_read <= 0");
886 code = I4B_GET_2B(cmd, I4B_MON_CMD);
888 /* special case: may modify our connection descriptor, is
889 * beyound all rights checks */
891 if (code == I4B_MON_CCMD_SETMASK)
895 u_int major = I4B_GET_2B(cmd, I4B_MON_ICLIENT_VERMAJOR);
896 u_int minor = I4B_GET_2B(cmd, I4B_MON_ICLIENT_VERMINOR);
899 int events = I4B_GET_4B(cmd, I4B_MON_ICLIENT_EVENTS);
900 con->events = events & rights;
904 if (code < 0 || code >= NUMCMD)
906 log(LL_MER, "illegal command from client, code = %d\n",
911 if (cmd_tab[code].call == NULL)
914 if ((cmd_tab[code].rights & rights) == cmd_tab[code].rights)
915 cmd_tab[code].call(fd, rights, cmd, con->source);
920 /*---------------------------------------------------------------------------
921 * Check if somebody would receive an event with this mask.
922 * We are lazy and try to avoid assembling unneccesary packets.
923 * Return 0 if no one interested, nonzero otherwise.
924 *---------------------------------------------------------------------------*/
928 struct monitor_connection * con;
930 for (con = TAILQ_FIRST(&connections); con != NULL; con = TAILQ_NEXT(con, connections))
932 if ((con->events & mask) == mask)
938 /*---------------------------------------------------------------------------
939 * exec hangup command
940 *---------------------------------------------------------------------------*/
942 hangup_channel(int controller, int channel, const char *source)
944 cfg_entry_t * cep = NULL;
947 if(controller < ncontroller)
949 if(isdn_ctrl_tab[controller].state != CTRL_UP)
951 for (i = 0; i < isdn_ctrl_tab[controller].nbch; i++)
953 if(isdn_ctrl_tab[controller].stateb[i] != CHAN_IDLE)
955 cep = get_cep_by_cc(controller, i);
956 if (cep != NULL && cep->isdnchannelused == channel &&
957 cep->isdncontrollerused == controller)
966 log(LL_CHD, "%05d %s manual disconnect (remote from %s)", cep->cdid, cep->name, source);
971 /*---------------------------------------------------------------------------
972 * Send an event to every connection interested in this kind of
974 *---------------------------------------------------------------------------*/
976 monitor_broadcast(int mask, u_int8_t *pkt, size_t bytes)
978 struct monitor_connection *con;
980 for (con = TAILQ_FIRST(&connections); con != NULL; con = TAILQ_NEXT(con, connections))
982 if ((con->events & mask) == mask)
986 if((sock_write(fd, pkt, bytes)) == -1)
988 log(LL_MER, "monitor_broadcast: sock_write error - %s", strerror(errno));
994 /*---------------------------------------------------------------------------
995 * Post a logfile event
996 *---------------------------------------------------------------------------*/
998 monitor_evnt_log(int prio, const char * what, const char * msg)
1000 u_int8_t evnt[I4B_MON_LOGEVNT_SIZE];
1003 if (!anybody(I4B_CA_EVNT_I4B))
1008 I4B_PREP_EVNT(evnt, I4B_MON_LOGEVNT_CODE);
1009 I4B_PUT_4B(evnt, I4B_MON_LOGEVNT_TSTAMP, (long)now);
1010 I4B_PUT_4B(evnt, I4B_MON_LOGEVNT_PRIO, prio);
1011 I4B_PUT_STR(evnt, I4B_MON_LOGEVNT_WHAT, what);
1012 I4B_PUT_STR(evnt, I4B_MON_LOGEVNT_MSG, msg);
1014 monitor_broadcast(I4B_CA_EVNT_I4B, evnt, sizeof evnt);
1017 /*---------------------------------------------------------------------------
1018 * Post a charging event on the connection described
1019 * by the given config entry.
1020 *---------------------------------------------------------------------------*/
1022 monitor_evnt_charge(cfg_entry_t *cep, int units, int estimate)
1026 u_int8_t evnt[I4B_MON_CHRG_SIZE];
1028 mask = (cep->direction == DIR_IN) ? I4B_CA_EVNT_CALLIN : I4B_CA_EVNT_CALLOUT;
1035 I4B_PREP_EVNT(evnt, I4B_MON_CHRG_CODE);
1036 I4B_PUT_4B(evnt, I4B_MON_CHRG_TSTAMP, (long)now);
1037 I4B_PUT_4B(evnt, I4B_MON_CHRG_CTRL, cep->isdncontrollerused);
1038 I4B_PUT_4B(evnt, I4B_MON_CHRG_CHANNEL, cep->isdnchannelused);
1039 I4B_PUT_4B(evnt, I4B_MON_CHRG_UNITS, units);
1040 I4B_PUT_4B(evnt, I4B_MON_CHRG_ESTIMATED, estimate ? 1 : 0);
1042 monitor_broadcast(mask, evnt, sizeof evnt);
1045 /*---------------------------------------------------------------------------
1046 * Post a connection event
1047 *---------------------------------------------------------------------------*/
1049 monitor_evnt_connect(cfg_entry_t *cep)
1051 u_int8_t evnt[I4B_MON_CONNECT_SIZE];
1052 char devname[I4B_MAX_MON_STRING];
1056 mask = (cep->direction == DIR_IN) ? I4B_CA_EVNT_CALLIN : I4B_CA_EVNT_CALLOUT;
1063 snprintf(devname, sizeof devname, "%s%d", bdrivername(cep->usrdevicename), cep->usrdeviceunit);
1065 I4B_PREP_EVNT(evnt, I4B_MON_CONNECT_CODE);
1066 I4B_PUT_4B(evnt, I4B_MON_CONNECT_TSTAMP, (long)now);
1067 I4B_PUT_4B(evnt, I4B_MON_CONNECT_DIR, cep->direction == DIR_OUT ? 1 : 0);
1068 I4B_PUT_4B(evnt, I4B_MON_CONNECT_CTRL, cep->isdncontrollerused);
1069 I4B_PUT_4B(evnt, I4B_MON_CONNECT_CHANNEL, cep->isdnchannelused);
1070 I4B_PUT_STR(evnt, I4B_MON_CONNECT_CFGNAME, cep->name);
1071 I4B_PUT_STR(evnt, I4B_MON_CONNECT_DEVNAME, devname);
1073 if(cep->direction == DIR_OUT)
1075 I4B_PUT_STR(evnt, I4B_MON_CONNECT_REMPHONE, cep->remote_phone_dialout);
1076 I4B_PUT_STR(evnt, I4B_MON_CONNECT_LOCPHONE, cep->local_phone_dialout);
1080 I4B_PUT_STR(evnt, I4B_MON_CONNECT_REMPHONE, cep->real_phone_incoming);
1081 I4B_PUT_STR(evnt, I4B_MON_CONNECT_LOCPHONE, cep->local_phone_incoming);
1083 monitor_broadcast(mask, evnt, sizeof evnt);
1086 /*---------------------------------------------------------------------------
1087 * Post a disconnect event
1088 *---------------------------------------------------------------------------*/
1090 monitor_evnt_disconnect(cfg_entry_t *cep)
1092 u_int8_t evnt[I4B_MON_DISCONNECT_SIZE];
1096 mask = (cep->direction == DIR_IN) ? I4B_CA_EVNT_CALLIN : I4B_CA_EVNT_CALLOUT;
1103 I4B_PREP_EVNT(evnt, I4B_MON_DISCONNECT_CODE);
1104 I4B_PUT_4B(evnt, I4B_MON_DISCONNECT_TSTAMP, (long)now);
1105 I4B_PUT_4B(evnt, I4B_MON_DISCONNECT_CTRL, cep->isdncontrollerused);
1106 I4B_PUT_4B(evnt, I4B_MON_DISCONNECT_CHANNEL, cep->isdnchannelused);
1108 monitor_broadcast(mask, evnt, sizeof evnt);
1111 /*---------------------------------------------------------------------------
1112 * Post an up/down event
1113 *---------------------------------------------------------------------------*/
1115 monitor_evnt_updown(cfg_entry_t *cep, int up)
1117 u_int8_t evnt[I4B_MON_UPDOWN_SIZE];
1121 mask = (cep->direction == DIR_IN) ? I4B_CA_EVNT_CALLIN : I4B_CA_EVNT_CALLOUT;
1128 I4B_PREP_EVNT(evnt, I4B_MON_UPDOWN_CODE);
1129 I4B_PUT_4B(evnt, I4B_MON_UPDOWN_TSTAMP, (long)now);
1130 I4B_PUT_4B(evnt, I4B_MON_UPDOWN_CTRL, cep->isdncontrollerused);
1131 I4B_PUT_4B(evnt, I4B_MON_UPDOWN_CHANNEL, cep->isdnchannelused);
1132 I4B_PUT_4B(evnt, I4B_MON_UPDOWN_ISUP, up);
1134 monitor_broadcast(mask, evnt, sizeof evnt);
1137 /*---------------------------------------------------------------------------
1138 * Post a Layer1/2 status change event
1139 *---------------------------------------------------------------------------*/
1141 monitor_evnt_l12stat(int controller, int layer, int state)
1143 u_int8_t evnt[I4B_MON_L12STAT_SIZE];
1146 if(!anybody(I4B_CA_EVNT_I4B))
1151 I4B_PREP_EVNT(evnt, I4B_MON_L12STAT_CODE);
1152 I4B_PUT_4B(evnt, I4B_MON_L12STAT_TSTAMP, (long)now);
1153 I4B_PUT_4B(evnt, I4B_MON_L12STAT_CTRL, controller);
1154 I4B_PUT_4B(evnt, I4B_MON_L12STAT_LAYER, layer);
1155 I4B_PUT_4B(evnt, I4B_MON_L12STAT_STATE, state);
1157 monitor_broadcast(I4B_CA_EVNT_I4B, evnt, sizeof evnt);
1160 /*---------------------------------------------------------------------------
1161 * Post a TEI change event
1162 *---------------------------------------------------------------------------*/
1164 monitor_evnt_tei(int controller, int tei)
1166 u_int8_t evnt[I4B_MON_TEI_SIZE];
1169 if(!anybody(I4B_CA_EVNT_I4B))
1174 I4B_PREP_EVNT(evnt, I4B_MON_TEI_CODE);
1175 I4B_PUT_4B(evnt, I4B_MON_TEI_TSTAMP, (long)now);
1176 I4B_PUT_4B(evnt, I4B_MON_TEI_CTRL, controller);
1177 I4B_PUT_4B(evnt, I4B_MON_TEI_TEI, tei);
1179 monitor_broadcast(I4B_CA_EVNT_I4B, evnt, sizeof evnt);
1182 /*---------------------------------------------------------------------------
1183 * Post an accounting event
1184 *---------------------------------------------------------------------------*/
1186 monitor_evnt_acct(cfg_entry_t *cep)
1188 u_int8_t evnt[I4B_MON_ACCT_SIZE];
1191 if(!anybody(I4B_CA_EVNT_I4B))
1196 I4B_PREP_EVNT(evnt, I4B_MON_ACCT_CODE);
1197 I4B_PUT_4B(evnt, I4B_MON_ACCT_TSTAMP, (long)now);
1199 I4B_PUT_4B(evnt, I4B_MON_ACCT_CTRL, cep->isdncontrollerused);
1200 I4B_PUT_4B(evnt, I4B_MON_ACCT_CHAN, cep->isdnchannelused);
1201 I4B_PUT_4B(evnt, I4B_MON_ACCT_OBYTES, cep->outbytes);
1202 I4B_PUT_4B(evnt, I4B_MON_ACCT_OBPS, cep->outbps);
1203 I4B_PUT_4B(evnt, I4B_MON_ACCT_IBYTES, cep->inbytes);
1204 I4B_PUT_4B(evnt, I4B_MON_ACCT_IBPS, cep->inbps);
1206 monitor_broadcast(I4B_CA_EVNT_I4B, evnt, sizeof evnt);
1209 /*---------------------------------------------------------------------------
1210 * read from a socket
1211 *---------------------------------------------------------------------------*/
1213 sock_read(int fd, void *buf, size_t nbytes)
1224 if((nread = read(fd, ptr, nleft)) < 0)
1243 return(nbytes - nleft);
1246 /*---------------------------------------------------------------------------
1248 *---------------------------------------------------------------------------*/
1250 sock_write(int fd, void *buf, size_t nbytes)
1261 if((nwritten = write(fd, ptr, nleft)) <= 0)
1279 struct monitor_rights * monitor_next_rights(const struct monitor_rights *r)
1282 return TAILQ_FIRST(&rights);
1284 return TAILQ_NEXT(r, list);
1287 #endif /* I4B_EXTERNAL_MONITOR */