2 * $Id: main.c,v 1.17 2002-10-05 13:20:13 didg Exp $
4 * Copyright (c) 1990,1993 Regents of The University of Michigan.
5 * All Rights Reserved. See COPYRIGHT.
10 #endif /* HAVE_CONFIG_H */
12 #include <sys/param.h>
13 #include <sys/socket.h>
14 #if defined( sun ) && defined( __svr4__ )
15 #include </usr/ucbinclude/sys/file.h>
16 #else /* sun __svr4__ */
18 #endif /* sun __svr4__ */
20 #include <sys/resource.h>
21 #include <sys/ioctl.h>
24 #include <sys/types.h>
25 #ifdef HAVE_SYS_WAIT_H
27 #endif /* HAVE_SYS_WAIT_H */
29 #define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
30 #endif /* ! WEXITSTATUS */
32 #define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
33 #endif /* ! WIFEXITED */
35 #define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
41 #include <net/route.h>
44 #include <net/route.h>
46 #include <netinet/in.h>
49 #include <atalk/logger.h>
57 #include <netatalk/endian.h>
58 #include <netatalk/at.h>
59 #include <atalk/compat.h>
60 #include <atalk/zip.h>
61 #include <atalk/rtmp.h>
62 #include <atalk/ddp.h>
63 #include <atalk/atp.h>
64 #include <atalk/paths.h>
65 #include <atalk/util.h>
68 #include <sys/sockio.h>
72 #include "interface.h"
80 /* Forward Declarations */
81 int ifconfig(const char *iname, unsigned long cmd, struct sockaddr_at *sa);
83 /* FIXME/SOCKLEN_T: socklen_t is a unix98 feature */
85 #define SOCKLEN_T unsigned int
86 #endif /* SOCKLEN_T */
89 #define WEXITSTATUS(x) ((x).w_retcode)
90 #endif /* WEXITSTATUS */
92 /* linux has a special ioctl for appletalk device destruction. as of
93 * 2.1.57, SIOCDIFADDR works w/ linux. okay, we need to deal with the
94 * fact that SIOCDIFADDR may be defined on linux despite the fact that
96 #if !defined(SIOCDIFADDR) && defined(SIOCATALKDIFADDR)
97 #define SIOCDIFADDR SIOCATALKDIFADDR
100 #define elements(a) (sizeof(a)/sizeof((a)[0]))
104 extern int rtmp_packet();
105 extern int nbp_packet();
106 extern int aep_packet();
107 extern int zip_packet();
111 struct atserv atserv[] = {
112 { "rtmp", 1, rtmp_packet }, /* 0 */
113 { "nbp", 2, nbp_packet }, /* 1 */
114 { "echo", 4, aep_packet }, /* 2 */
115 { "zip", 6, zip_packet }, /* 3 */
117 int atservNATSERV = elements( atserv );
119 struct interface *interfaces = NULL, *ciface = NULL;
121 int debug = 0, quiet = 0, chatty = 0;
122 char *configfile = NULL;
123 int ziptimeout = 0, transition = 0;
124 int stabletimer, stable = 0, newrtmpdata = 0, noparent = 0;
125 static int ninterfaces;
126 int defphase = IFACE_PHASE2;
129 char Packet[ PKTSZ ];
130 char *version = VERSION;
131 static char *pidfile = _PATH_ATALKDLOCK;
136 int readconf( char * );
137 int getifconf( void );
138 int writeconf( char * );
140 /* this is the messiest of the bunch as atalkd can exit pretty much
141 * everywhere. we delete interfaces here instead of in as_down. */
142 static void atalkd_exit(const int i)
145 struct interface *iface;
147 for (iface = interfaces; iface; iface = iface->i_next) {
148 if (ifconfig( iface->i_name, SIOCDIFADDR, &iface->i_addr)) {
149 #ifdef SIOCATALKDIFADDR
150 #if (SIOCDIFADDR != SIOCATALKDIFADDR)
151 if (!ifconfig(iface->i_name, SIOCATALKDIFADDR, &iface->i_addr))
153 #endif /* SIOCDIFADDR != SIOCATALKDIFADDR */
154 #endif /* SIOCATALKIFADDR */
155 LOG(log_error, logtype_atalkd, "difaddr(%u.%u): %s",
156 ntohs(iface->i_addr.sat_addr.s_net),
157 iface->i_addr.sat_addr.s_node, strerror(errno));
160 #endif /* SOPCDOFADDR */
162 server_unlock(pidfile);
167 static void as_timer(int sig)
169 struct sockaddr_at sat;
172 struct rtmp_tuple rt;
173 struct atport *ap, *zap, *rap;
174 struct interface *iface, *iface2;
175 struct gate *gate, *fgate = NULL;
176 struct rtmptab *rtmp, *frtmp;
178 char *data, *end, packet[ ATP_BUFSIZ ];
182 memset(&sat, 0, sizeof( struct sockaddr_at ));
183 for ( iface = interfaces; iface; iface = iface->i_next ) {
184 if ( iface->i_flags & IFACE_LOOPBACK ) {
187 for ( ap = iface->i_ports; ap; ap = ap->ap_next ) {
188 if ( ap->ap_packet == zip_packet ) {
191 if ( ap->ap_packet == rtmp_packet ) {
196 if (( iface->i_flags & ( IFACE_ADDR|IFACE_CONFIG|IFACE_NOROUTER )) ==
198 if ( iface->i_time < 3 ) {
199 if ( iface->i_flags & IFACE_PHASE1 ) {
200 if (rtmp_request( iface ) < 0) {
201 LOG(log_error, logtype_atalkd, "rtmp_request: %s", strerror(errno));
206 if (zip_getnetinfo( iface ) < 0) {
207 LOG(log_error, logtype_atalkd, "zip_getnetinfo: %s", strerror(errno));
214 iface->i_flags |= IFACE_NOROUTER;
215 if ((iface->i_flags & IFACE_ISROUTER)) {
216 if (( iface->i_flags & IFACE_SEED ) == 0 ) {
218 * No seed info, and we've got multiple interfaces.
221 LOG(log_info, logtype_atalkd,
222 "as_timer multiple interfaces, no seed" );
223 LOG(log_info, logtype_atalkd, "as_timer can't configure %s",
225 LOG(log_info, logtype_atalkd, "as_timer waiting for router" );
230 * Complete configuration for iface, and boot next
233 iface->i_flags |= IFACE_CONFIG;
234 for ( zt = iface->i_czt; zt; zt = zt->zt_next ) {
235 if (addzone( iface->i_rt, zt->zt_len,
237 LOG(log_error, logtype_atalkd, "addzone: %s", strerror(errno));
241 if ( iface->i_rt->rt_zt ) {
242 iface->i_rt->rt_flags &= ~RTMPTAB_ZIPQUERY;
243 iface->i_rt->rt_flags |= RTMPTAB_HASZONES;
245 if ( iface->i_flags & IFACE_PHASE1 ) {
246 LOG(log_info, logtype_atalkd,
247 "as_timer configured %s phase 1 from seed",
249 setaddr( iface, IFACE_PHASE1,
250 iface->i_caddr.sat_addr.s_net,
251 iface->i_addr.sat_addr.s_node,
252 iface->i_caddr.sat_addr.s_net,
253 iface->i_caddr.sat_addr.s_net );
255 LOG(log_info, logtype_atalkd,
256 "as_timer configured %s phase 2 from seed",
260 if ( looproute( iface, RTMP_ADD )) { /* -1 or 1 */
261 LOG(log_error, logtype_atalkd,
262 "as_timer: can't route %u.%u to loop: %s",
263 ntohs( iface->i_addr.sat_addr.s_net ),
264 iface->i_addr.sat_addr.s_node,
268 if ( iface == ciface ) {
269 ciface = ciface->i_next;
275 * Configure for no router operation. Wait for a route
276 * to become available in rtmp_packet().
278 LOG(log_info, logtype_atalkd, "config for no router" );
280 if ( iface->i_flags & IFACE_PHASE2 ) {
281 iface->i_rt->rt_firstnet = 0;
282 iface->i_rt->rt_lastnet = htons( STARTUP_LASTNET );
283 setaddr( iface, IFACE_PHASE2,
284 iface->i_addr.sat_addr.s_net,
285 iface->i_addr.sat_addr.s_node,
286 0, htons( STARTUP_LASTNET ));
288 if ( looproute( iface, RTMP_ADD ) ) { /* -1 or 1 */
289 LOG(log_error, logtype_atalkd,
290 "as_timer: can't route %u.%u to loopback: %s",
291 ntohs( iface->i_addr.sat_addr.s_net ),
292 iface->i_addr.sat_addr.s_node,
297 if ( iface == ciface ) {
298 ciface = ciface->i_next;
305 for ( gate = iface->i_gate; gate; gate = gate->g_next ) {
307 free( (caddr_t)fgate );
312 data = packet + 1 + sizeof( struct ziphdr );
313 end = packet + sizeof( packet );
316 sat.sat_port = zap->ap_port;
319 * Perform timeouts on routers. If we've only got one
320 * interface, we'll use these timeouts to decide that
321 * our zone has gone away.
323 if ( ++gate->g_state >= RTMPTAB_BAD ) {
324 LOG(log_info, logtype_atalkd, "as_timer gateway %u.%u down",
325 ntohs( gate->g_sat.sat_addr.s_net ),
326 gate->g_sat.sat_addr.s_node );
329 frtmp = rtmp->rt_next;
330 if ( rtmp->rt_hops == RTMPHOPS_POISON ||
331 rtmp->rt_iprev == 0 ) {
334 rtmp->rt_hops = RTMPHOPS_POISON;
335 if ((cc = rtmp_replace( rtmp )) < 0) {
336 LOG(log_error, logtype_atalkd, "rtmp_replace: %s", strerror(errno));
340 gate->g_state = rtmp->rt_state = RTMPTAB_GOOD;
345 if ( gate->g_rt == 0 ) {
346 if ( gate->g_prev == 0 ) {
347 gate->g_iface->i_gate = gate->g_next;
349 gate->g_prev->g_next = gate->g_next;
351 if ( gate->g_next != 0 ) {
352 gate->g_next->g_prev = gate->g_prev;
354 fgate = gate; /* can't free here, just mark it */
357 * If this is the last router on the only interface,
358 * reconfigure our netrange. By marking the interface
359 * as having no router, we will notice when a router
362 * XXX: actually, we always reconfigure an interface
363 * if we're not a seed router.
366 if ( gate->g_iface->i_gate == 0 &&
367 ((iface->i_flags & IFACE_SEED) == 0)) {
368 gate->g_iface->i_flags |= IFACE_NOROUTER;
369 gate->g_iface->i_flags &= ~IFACE_CONFIG;
371 /* get rid of any zones associated with this iface */
372 if (gate->g_iface->i_rt->rt_zt) {
373 rtmp_delzonemap(gate->g_iface->i_rt);
374 gate->g_iface->i_rt->rt_flags &= ~RTMPTAB_HASZONES;
377 LOG(log_info, logtype_atalkd, "as_timer last gateway down" );
379 /* Set netrange to 0-fffe. */
380 if ( gate->g_iface->i_flags & IFACE_PHASE2 ) {
381 gate->g_iface->i_rt->rt_firstnet = 0;
382 gate->g_iface->i_rt->rt_lastnet =
383 htons( STARTUP_LASTNET );
384 setaddr( iface, IFACE_PHASE2,
385 iface->i_addr.sat_addr.s_net,
386 iface->i_addr.sat_addr.s_node,
387 0, htons( STARTUP_LASTNET ));
394 * If we don't have a zone for our interface yet, ask for
395 * it from any router (all routers) on the interface.
397 if (( iface->i_rt->rt_flags & RTMPTAB_HASZONES ) == 0 ) {
398 iface->i_rt->rt_flags |= RTMPTAB_ZIPQUERY;
399 memcpy( data, &iface->i_rt->rt_firstnet, sizeof( u_short ));
400 data += sizeof( u_short );
407 * Delete old routing tuples.
409 if ( rtmp->rt_state != RTMPTAB_PERM ) {
414 * We've not been updated for this route in a while. If
415 * it's not in use, go ahead and remove it. If it is in
416 * use, mark the route as down (POISON), and look for a
417 * better route. If one is found, delete this route and use
418 * the new one. If it's not found, mark the route as GOOD
419 * (so we'll propogate our poison) and delete it the next
420 * time it becomes BAD.
422 if ( rtmp->rt_state >= RTMPTAB_BAD ) {
423 frtmp = rtmp->rt_next;
424 if ( rtmp->rt_iprev == 0 ) { /* not in use */
426 } else { /* in use */
427 if ( rtmp->rt_hops == RTMPHOPS_POISON ) {
430 rtmp->rt_hops = RTMPHOPS_POISON;
431 if ((cc = rtmp_replace( rtmp )) < 0) {
432 LOG(log_error, logtype_atalkd, "rtmp_replace: %s", strerror(errno));
436 rtmp->rt_state = RTMPTAB_GOOD;
446 if ( rtmp->rt_iprev &&
447 ( rtmp->rt_flags & RTMPTAB_HASZONES ) == 0 ) {
448 if ( data + sizeof( u_short ) > end || n == 255 ) {
449 /* send what we've got */
450 zh.zh_op = ZIPOP_QUERY;
454 *data++ = DDPTYPE_ZIP;
455 memcpy( data, &zh, sizeof( struct ziphdr ));
457 if ( sendto( zap->ap_fd, packet, cc, 0,
458 (struct sockaddr *)&sat,
459 sizeof( struct sockaddr_at )) < 0 ) {
460 LOG(log_error, logtype_atalkd, "as_timer sendto: %s", strerror(errno) );
465 data = packet + 1 + sizeof( struct ziphdr );
466 end = packet + sizeof( packet );
470 * rt_nzq is number of ZIP Queries we've issued for a
471 * given netrange. If we've got ziptimeout on, we
472 * will only ask 3 times for any given netrange.
473 * Interestingly enough, since rt_nzq is a u_char,
474 * it will overflow after a while. This means we will
475 * periodically ask for nets that we've decided not to
476 * ask about, and warn that we can't get it's zone.
478 if ( rtmp->rt_nzq++ == 3 ) {
479 LOG(log_info, logtype_atalkd, "as_timer can't get zone for %u",
480 ntohs( rtmp->rt_firstnet ));
482 if ( rtmp->rt_nzq > 3 ) {
484 rtmp = rtmp->rt_next;
490 rtmp->rt_flags |= RTMPTAB_ZIPQUERY;
491 memcpy( data, &rtmp->rt_firstnet, sizeof( u_short ));
492 data += sizeof( u_short );
495 rtmp = rtmp->rt_next;
498 /* send what we've got */
500 zh.zh_op = ZIPOP_QUERY;
504 *data++ = DDPTYPE_ZIP;
505 memcpy( data, &zh, sizeof( struct ziphdr ));
507 if ( sendto( zap->ap_fd, packet, cc, 0, (struct sockaddr *)&sat,
508 sizeof( struct sockaddr_at )) < 0 ) {
509 LOG(log_error, logtype_atalkd, "as_timer sendto: %s", strerror(errno) );
514 free( (caddr_t)fgate );
519 * Send RTMP broadcasts if we have multiple interfaces or our
520 * interface is configured as a router.
522 if ((iface->i_flags & IFACE_ISROUTER)) {
524 sat.sat_len = sizeof( struct sockaddr_at );
526 sat.sat_family = AF_APPLETALK;
527 sat.sat_addr.s_net = ATADDR_ANYNET;
528 sat.sat_addr.s_node = ATADDR_BCAST;
529 sat.sat_port = rap->ap_port;
532 end = data + sizeof( packet );
533 *data++ = DDPTYPE_RTMPRD;
534 rh.rh_net = iface->i_addr.sat_addr.s_net;
536 rh.rh_node = iface->i_addr.sat_addr.s_node;
537 memcpy( data, &rh, sizeof( struct rtmp_head ));
538 data += sizeof( struct rtmp_head );
542 if ( iface->i_flags & IFACE_PHASE1 ) {
545 memcpy( data, &rt, SZ_RTMPTUPLE );
546 data += SZ_RTMPTUPLE;
548 rt.rt_net = iface->i_rt->rt_firstnet;
550 memcpy( data, &rt, SZ_RTMPTUPLE );
551 data += SZ_RTMPTUPLE;
553 rt.rt_net = iface->i_rt->rt_lastnet;
555 memcpy( data, &rt, SZ_RTMPTUPLE );
556 data += SZ_RTMPTUPLE;
559 for ( iface2 = interfaces; iface2; iface2 = iface2->i_next ) {
561 /* XXX: there used to be a bit checking against iface ==
562 iface2. also, we don't want to send an rtmp broadcast
563 to an interface that doesn't want it. */
564 if ((( iface2->i_flags & IFACE_CONFIG ) == 0) ||
565 ((iface2->i_flags & IFACE_ISROUTER) == 0)) {
569 * Fill in tuples. Always send the same thing, regardless
570 * of the phase of the destination. Routers who don't
571 * understand extended rtmp packets will toss extended
572 * tuples because their distance will have the high bit set.
574 for ( rtmp = iface2->i_rt; rtmp; rtmp = rtmp->rt_inext ) {
575 /* don't broadcast routes we have no zone for */
576 if ( rtmp->rt_zt == 0 ||
577 ( rtmp->rt_flags & RTMPTAB_ZIPQUERY ) ||
578 ( rtmp->rt_flags & RTMPTAB_HASZONES ) == 0 ) {
582 if ((( rtmp->rt_flags & RTMPTAB_EXTENDED ) &&
583 data + 2 * SZ_RTMPTUPLE > end ) ||
584 data + SZ_RTMPTUPLE > end ) {
585 if ( sendto( rap->ap_fd, packet, data - packet, 0,
586 (struct sockaddr *)&sat,
587 sizeof( struct sockaddr_at )) < 0 ) {
588 LOG(log_error, logtype_atalkd, "as_timer sendto %u.%u (%u): %s",
589 ntohs( sat.sat_addr.s_net ),
591 ntohs( iface->i_rt->rt_firstnet ),
595 if ( iface->i_flags & IFACE_PHASE2 ) {
596 data = packet + 1 + sizeof( struct rtmp_head ) +
599 data = packet + 1 + sizeof( struct rtmp_head ) +
605 rt.rt_net = rtmp->rt_firstnet;
606 rt.rt_dist = rtmp->rt_hops;
607 if ( rtmp->rt_flags & RTMPTAB_EXTENDED ) {
610 memcpy( data, &rt, SZ_RTMPTUPLE );
611 data += SZ_RTMPTUPLE;
613 if ( rtmp->rt_flags & RTMPTAB_EXTENDED ) {
614 rt.rt_net = rtmp->rt_lastnet;
616 memcpy( data, &rt, SZ_RTMPTUPLE );
617 data += SZ_RTMPTUPLE;
625 if ( sendto( rap->ap_fd, packet, data - packet, 0,
626 (struct sockaddr *)&sat,
627 sizeof( struct sockaddr_at )) < 0 ) {
628 LOG(log_error, logtype_atalkd, "as_timer sendto %u.%u (%u): %s",
629 ntohs( sat.sat_addr.s_net ),
631 ntohs( iface->i_rt->rt_firstnet ),
639 * Check if we're stable. Each time we configure an interface, we
640 * sent stabletimer to UNSTABLE. If stabletimer ever gets to
641 * STABLEANYWAY, we give up and decide to "be" stable anyway.
642 * Normally, we wait for stabletimer get <= STABLE with no new rtmp
643 * data and all zip data complete.
646 if ( stabletimer <= STABLE && !newrtmpdata && !sentzipq ) {
647 /* write out config file */
649 writeconf( configfile );
651 if ( stabletimer-- <= STABLEANYWAY ) {
657 if ( stable && !noparent ) {
659 LOG(log_info, logtype_atalkd, "ready %d/%d/%d", stabletimer, newrtmpdata,
663 * Seems like we could get here more than once...
665 if ( kill( getpid(), SIGSTOP ) < 0 ) {
666 LOG(log_error, logtype_atalkd, "as_timer: kill-self failed!" );
680 * Consistency check...
684 struct rtmptab *rtmp;
685 struct list *lr, *lz;
688 for ( zt = ziptab; zt; zt = zt->zt_next ) {
689 for ( lr = zt->zt_rt; lr; lr = lr->l_next ) {
690 rtmp = (struct rtmptab *)lr->l_data;
691 if ( rtmp->rt_iprev == 0 && rtmp->rt_gate != 0 ) {
692 LOG(log_error, logtype_atalkd, "%.*s has %u-%u (unused)\n",
693 zt->zt_len, zt->zt_name, ntohs( rtmp->rt_firstnet ),
694 ntohs( rtmp->rt_lastnet ));
697 for ( lz = rtmp->rt_zt; lz; lz = lz->l_next ) {
698 if ( zt == (struct ziptab *)lz->l_data ) {
703 LOG(log_error, logtype_atalkd, "no map from %u-%u to %.*s\n",
704 ntohs( rtmp->rt_firstnet ),
705 ntohs( rtmp->rt_lastnet ),
706 zt->zt_len, zt->zt_name );
714 #if !defined( ibm032 ) && !defined( _IBMR2 )
716 #endif /* ! ibm032 && ! _IBMR2 */
719 struct interface *iface;
726 if (( rtmpdebug = fopen( _PATH_ATALKDEBUG, "w" )) == NULL ) {
727 LOG(log_error, logtype_atalkd, "rtmp: %s", strerror(errno) );
730 for ( iface = interfaces; iface; iface = iface->i_next ) {
731 fprintf( rtmpdebug, "interface %s %u.%u ", iface->i_name,
732 ntohs( iface->i_addr.sat_addr.s_net ),
733 iface->i_addr.sat_addr.s_node );
734 if ( iface->i_flags & IFACE_PHASE1 ) {
735 putc( '1', rtmpdebug );
737 if ( iface->i_flags & IFACE_PHASE2 ) {
738 putc( '2', rtmpdebug );
740 if ( iface->i_flags & IFACE_RSEED ) {
741 putc( 'R', rtmpdebug );
743 if ( iface->i_flags & IFACE_SEED ) {
744 putc( 'S', rtmpdebug );
746 if ( iface->i_flags & IFACE_DONTROUTE ) {
747 putc( 'D', rtmpdebug );
749 if ( iface->i_flags & IFACE_ADDR ) {
750 putc( 'A', rtmpdebug );
752 if ( iface->i_flags & IFACE_CONFIG ) {
753 putc( 'C', rtmpdebug );
755 if ( iface->i_flags & IFACE_NOROUTER ) {
756 putc( 'N', rtmpdebug );
758 if ( iface->i_flags & IFACE_LOOP ) {
759 putc( 'L', rtmpdebug );
761 putc( '\n', rtmpdebug );
764 fprintf( rtmpdebug, "\t%u-%u ",
765 ntohs( iface->i_rt->rt_firstnet ),
766 ntohs( iface->i_rt->rt_lastnet ));
767 if ( iface->i_rt->rt_flags & RTMPTAB_ZIPQUERY ) {
768 putc( 'q', rtmpdebug );
770 if ( iface->i_rt->rt_flags & RTMPTAB_HASZONES ) {
771 putc( 'z', rtmpdebug );
773 if ( iface->i_rt->rt_flags & RTMPTAB_EXTENDED ) {
774 putc( 'x', rtmpdebug );
776 putc( 'i', rtmpdebug );
777 for ( l = iface->i_rt->rt_zt; l; l = l->l_next ) {
778 zt = (struct ziptab *)l->l_data;
779 fprintf( rtmpdebug, " '%.*s'", zt->zt_len, zt->zt_name );
781 fprintf( rtmpdebug, "\n" );
784 for ( gate = iface->i_gate; gate; gate = gate->g_next ) {
785 fprintf( rtmpdebug, "gate %u.%u %X\n",
786 ntohs( gate->g_sat.sat_addr.s_net ),
787 gate->g_sat.sat_addr.s_node, gate->g_state );
788 for ( rt = gate->g_rt; rt; rt = rt->rt_next ) {
789 fprintf( rtmpdebug, "\t%u-%u ", ntohs( rt->rt_firstnet ),
790 ntohs( rt->rt_lastnet ));
791 if ( rt->rt_flags & RTMPTAB_ZIPQUERY ) {
792 putc( 'q', rtmpdebug );
794 if ( rt->rt_flags & RTMPTAB_HASZONES ) {
795 putc( 'z', rtmpdebug );
797 if ( rt->rt_flags & RTMPTAB_EXTENDED ) {
798 putc( 'x', rtmpdebug );
800 if ( rt->rt_iprev ) {
801 putc( 'i', rtmpdebug );
803 for ( l = rt->rt_zt; l; l = l->l_next ) {
804 zt = (struct ziptab *)l->l_data;
805 fprintf( rtmpdebug, " '%.*s'", zt->zt_len, zt->zt_name );
807 fprintf( rtmpdebug, "\n" );
816 * Called when SIGTERM is recieved. Remove all routes and then exit.
818 #if !defined( ibm032 ) && !defined( _IBMR2 )
820 #endif /* ! ibm032 && ! _IBMR2 */
823 struct interface *iface;
827 for ( iface = interfaces; iface; iface = iface->i_next ) {
828 for ( gate = iface->i_gate; gate; gate = gate->g_next ) {
829 for ( rt = gate->g_rt; rt; rt = rt->rt_next ) {
830 if ( rt->rt_iprev ) {
831 if ( gateroute( RTMP_DEL, rt ) < 0 ) {
832 LOG(log_error, logtype_atalkd, "as_down remove %u-%u failed: %s",
833 ntohs( rt->rt_firstnet ),
834 ntohs( rt->rt_lastnet ),
840 if ( iface->i_flags & IFACE_LOOP ) {
841 if (looproute( iface, RTMP_DEL )) {
842 LOG(log_error, logtype_atalkd, "as_down remove %s %u.%u failed: %s",
843 iface->i_name, ntohs( iface->i_addr.sat_addr.s_net ),
844 iface->i_addr.sat_addr.s_node,
850 LOG(log_info, logtype_atalkd, "done" );
861 struct sockaddr_at sat;
864 struct interface *iface;
873 while (( c = getopt( ac, av, "12qsdtf:P:v" )) != EOF ) {
876 defphase = IFACE_PHASE1;
880 defphase = IFACE_PHASE2;
891 case 'q' : /* don't seed */
895 case 's' : /* seed */
899 case 't' : /* transition */
903 case 'P' : /* pid file */
907 case 'v' : /* version */
908 printf( "atalkd (version %s)\n", version );
913 fprintf( stderr, "Unknown option -- '%c'\n", c );
917 if ( optind != ac ) {
918 fprintf( stderr, "Too many arguments.\n" );
922 if (( prog = strrchr( av[ 0 ], '/' )) == NULL ) {
929 * Configure loop back address first, so appearances of "lo0" in
930 * the config file fail. Also insures that lo0 gets configured,
931 * even if there's some hangup during configuration of some
934 if (( interfaces = newiface( LOOPIFACE )) == NULL ) {
935 perror( "newiface" );
938 interfaces->i_flags |= IFACE_PHASE2 | IFACE_LOOPBACK;
941 * Check our initial configuration before we fork. This way we can
942 * complain about syntax errors on stdout.
944 * Basically, if we're going to read our config file, we should read
945 * it and initialize our data structures. If we're not going to read
946 * our config file, use GIFCONF to initialize our data structures.
948 if ( readconf( configfile ) < 0 && getifconf() < 0 ) {
949 fprintf( stderr, "%s: can't get interfaces, exiting.\n", prog );
953 /* we need to count up our interfaces so that we can simplify things
954 * later. we also need to figure out if we have more than one interface
955 * that is routing. */
956 for (i = 0, ninterfaces = 0, iface = interfaces; iface;
957 iface=iface->i_next) {
958 if (iface->i_flags & IFACE_DONTROUTE)
962 i = ninterfaces - i; /* number of routable interfaces */
965 * At this point, we have (at least partially) initialized data
966 * structures. Fill in what we can and verify that nothing is obviously
969 for (iface = interfaces; iface; iface = iface->i_next) {
970 /* Apply the default phase */
971 if (( iface->i_flags & IFACE_PHASE1 ) == 0 &&
972 ( iface->i_flags & IFACE_PHASE2 ) == 0 ) {
973 iface->i_flags |= defphase;
976 /* set up router flag information. if we have multiple interfaces
977 * and DONTROUTE isn't set, set up ROUTER. i is the number of
978 * interfaces that don't have the DONTROUTE flag set. */
979 if ((i > IFBASE) && ((iface->i_flags & IFACE_DONTROUTE) == 0)) {
980 iface->i_flags |= IFACE_ISROUTER;
983 /* Set default addresses */
984 if ( iface->i_rt == NULL ) {
985 if (( iface->i_rt = newrt(iface)) == NULL ) {
990 if ( iface->i_flags & IFACE_PHASE1 ) {
991 iface->i_rt->rt_firstnet = iface->i_rt->rt_lastnet =
992 iface->i_caddr.sat_addr.s_net;
994 if ( iface->i_caddr.sat_addr.s_net != ATADDR_ANYNET ||
995 ( iface->i_flags & IFACE_LOOPBACK )) {
996 iface->i_rt->rt_firstnet = iface->i_rt->rt_lastnet =
997 iface->i_caddr.sat_addr.s_net;
999 iface->i_rt->rt_firstnet = htons( STARTUP_FIRSTNET );
1000 iface->i_rt->rt_lastnet = htons( STARTUP_LASTNET );
1005 if (( iface->i_flags & IFACE_PHASE1 ) == 0 ) {
1006 iface->i_rt->rt_flags |= RTMPTAB_EXTENDED;
1009 if ( iface->i_caddr.sat_addr.s_net == ATADDR_ANYNET ) {
1010 iface->i_caddr.sat_addr.s_net = iface->i_rt->rt_firstnet;
1014 dumpconfig( iface ); /* probably needs args */
1019 * A little consistency check...
1021 if ( ninterfaces < IFBASE ) {
1022 fprintf( stderr, "%s: zero interfaces, exiting.\n", prog );
1026 /* do this here so that we can use ifconfig */
1028 if ( plumb() < 0 ) {
1029 fprintf(stderr, "can't establish STREAMS plumbing, exiting.\n" );
1032 #endif /* __svr4__ */
1034 /* delete pre-existing interface addresses. */
1036 for (iface = interfaces; iface; iface = iface->i_next) {
1037 if (ifconfig(iface->i_name, SIOCDIFADDR, &iface->i_addr)) {
1038 #ifdef SIOCATALKDIFADDR
1039 #if (SIOCDIFADDR != SIOCATALKDIFADDR)
1040 ifconfig(iface->i_name, SIOCATALKDIFADDR, &iface->i_addr);
1041 #endif /* SIOCDIFADDR != SIOCATALKDIFADDR */
1042 #endif /* SIOCATALKDIFADDR */
1045 #endif /* SIOCDIFADDR */
1048 * Disassociate. The child will send itself a signal when it is
1049 * stable. This indicates that other processes may begin using
1052 switch (i = server_lock("atalkd", pidfile, debug)) {
1057 default: /* parent */
1059 * Wait for the child to send itself a SIGSTOP, after which
1060 * we send it a SIGCONT and exit ourself.
1062 if ( wait3( &status, WUNTRACED, (struct rusage *)0 ) != i) {
1063 perror( "wait3" ); /* Child died? */
1066 if ( !WIFSTOPPED( status )) {
1067 fprintf( stderr, "AppleTalk not up! Check your syslog for the reason." );
1068 if ( WIFEXITED( status )) {
1069 fprintf( stderr, " Child exited with %d.\n",
1070 WEXITSTATUS( status ));
1072 fprintf( stderr, " Child died.\n" );
1076 if ( kill(i, SIGCONT ) < 0 ) {
1084 openlog( prog, LOG_PID );
1086 set_processname(prog);
1087 syslog_setup(log_debug, logtype_default, logoption_pid, logfacility_daemon );
1090 LOG(log_info, logtype_atalkd, "restart (%s)", version );
1093 * Socket for use in routing ioctl()s. Can't add routes to our
1094 * interfaces until we have our routing socket.
1097 if (( rtfd = socket( PF_ROUTE, SOCK_RAW, AF_APPLETALK )) < 0 ) {
1098 LOG(log_error, logtype_atalkd, "route socket: %s", strerror(errno) );
1101 if ( shutdown( rtfd, 0 ) < 0 ) {
1102 LOG(log_error, logtype_atalkd, "route shutdown: %s", strerror(errno) );
1106 if (( rtfd = socket( AF_APPLETALK, SOCK_DGRAM, 0 )) < 0 ) {
1107 LOG(log_error, logtype_atalkd, "route socket: %s", strerror(errno) );
1112 ciface = interfaces;
1115 memset(&sv, 0, sizeof(sv));
1116 sv.sa_handler = as_down;
1117 sigemptyset( &sv.sa_mask );
1118 sigaddset( &sv.sa_mask, SIGUSR1 );
1119 sigaddset( &sv.sa_mask, SIGALRM );
1120 sigaddset( &sv.sa_mask, SIGTERM );
1121 sv.sa_flags = SA_RESTART;
1122 if ( sigaction( SIGTERM, &sv, NULL) < 0 ) {
1123 LOG(log_error, logtype_atalkd, "sigterm: %s", strerror(errno) );
1127 sv.sa_handler = as_debug;
1128 sigemptyset( &sv.sa_mask );
1129 sigaddset( &sv.sa_mask, SIGUSR1 );
1130 sigaddset( &sv.sa_mask, SIGALRM );
1131 sigaddset( &sv.sa_mask, SIGTERM );
1132 sv.sa_flags = SA_RESTART;
1133 if ( sigaction( SIGUSR1, &sv, NULL) < 0 ) {
1134 LOG(log_error, logtype_atalkd, "sigusr1: %s", strerror(errno) );
1138 sv.sa_handler = as_timer;
1139 sigemptyset( &sv.sa_mask );
1140 sigaddset( &sv.sa_mask, SIGUSR1 );
1141 sigaddset( &sv.sa_mask, SIGALRM );
1142 sigaddset( &sv.sa_mask, SIGTERM );
1143 sv.sa_flags = SA_RESTART;
1144 if ( sigaction( SIGALRM, &sv, NULL) < 0 ) {
1145 LOG(log_error, logtype_atalkd, "sigalrm: %s", strerror(errno) );
1149 it.it_interval.tv_sec = 10L;
1150 it.it_interval.tv_usec = 0L;
1151 it.it_value.tv_sec = 10L;
1152 it.it_value.tv_usec = 0L;
1153 if ( setitimer( ITIMER_REAL, &it, NULL) < 0 ) {
1154 LOG(log_error, logtype_atalkd, "setitimer: %s", strerror(errno) );
1160 if ( select( nfds, &readfds, NULL, NULL, NULL) < 0 ) {
1161 if ( errno == EINTR ) {
1165 LOG(log_error, logtype_atalkd, "select: %s", strerror(errno) );
1170 for ( iface = interfaces; iface; iface = iface->i_next ) {
1171 for ( ap = iface->i_ports; ap; ap = ap->ap_next ) {
1172 if ( FD_ISSET( ap->ap_fd, &readfds )) {
1173 if ( ap->ap_packet ) {
1174 fromlen = sizeof( struct sockaddr_at );
1175 if (( c = recvfrom( ap->ap_fd, Packet, sizeof( Packet ),
1176 0, (struct sockaddr *)&sat, &fromlen )) < 0 ) {
1177 LOG(log_error, logtype_atalkd, "recvfrom: %s", strerror(errno) );
1182 printf( "packet from %u.%u on %s (%x) %d (%d)\n",
1183 ntohs( sat.sat_addr.s_net ),
1184 sat.sat_addr.s_node, iface->i_name,
1185 iface->i_flags, ap->ap_port, ap->ap_fd );
1186 bprint( Packet, c );
1190 if ( sighold( SIGALRM ) || sighold( SIGUSR1 )) {
1191 LOG(log_error, logtype_atalkd, "sighold: %s", strerror(errno) );
1194 #else /* __svr4__ */
1195 mask = sigsetmask( sigmask( SIGALRM ) |
1196 sigmask( SIGUSR1 ));
1197 #endif /* __svr4__ */
1198 if (( *ap->ap_packet )( ap, &sat, Packet, c ) < 0) {
1199 LOG(log_error, logtype_atalkd, "ap->ap_packet: %s", strerror(errno));
1207 if ( sigrelse( SIGUSR1 ) || sigrelse( SIGALRM )) {
1208 LOG(log_error, logtype_atalkd, "sigrelse: %s", strerror(errno) );
1211 #else /* __svr4__ */
1213 #endif /* __svr4__ */
1222 * This code is called (from main(), as_timer(), zip_packet(),
1223 * and rtmp_packet()) to set the initial "bootstrapping" address
1226 void bootaddr( iface )
1227 struct interface *iface;
1234 if ( iface->i_flags & IFACE_ADDR ) {
1235 LOG(log_error, logtype_atalkd, "bootaddr OOPS!" );
1239 if ( iface->i_flags & IFACE_PHASE1 ) {
1240 setaddr( iface, IFACE_PHASE1, 0,
1241 iface->i_caddr.sat_addr.s_node, 0, 0 );
1243 if ( iface->i_flags & IFACE_LOOPBACK ) {
1244 iface->i_flags |= IFACE_CONFIG | IFACE_ADDR;
1245 if ( ciface == iface ) {
1246 ciface = ciface->i_next;
1250 } else if (rtmp_request( iface ) < 0) {
1251 LOG(log_error, logtype_atalkd, "bootaddr (rtmp_request): %s", strerror(errno));
1256 setaddr( iface, IFACE_PHASE2, iface->i_caddr.sat_addr.s_net,
1257 iface->i_caddr.sat_addr.s_node,
1258 iface->i_rt->rt_firstnet, iface->i_rt->rt_lastnet );
1260 if ( iface->i_flags & IFACE_LOOPBACK ) {
1261 iface->i_flags |= IFACE_CONFIG | IFACE_ADDR;
1262 if ( ciface == iface ) {
1263 ciface = ciface->i_next;
1267 } else if (zip_getnetinfo( iface ) < 0) {
1268 LOG(log_error, logtype_atalkd, "bootaddr (zip_getnetinfo): %s", strerror(errno));
1273 iface->i_flags |= IFACE_ADDR;
1274 stabletimer = UNSTABLE;
1280 * to manage the i_ports field and the fds for select().
1282 void setaddr(struct interface *iface,
1283 u_int8_t phase, u_int16_t net, u_int8_t node,
1284 u_int16_t first, u_int16_t last)
1290 struct sockaddr_at sat;
1293 if ( iface->i_ports == NULL ) { /* allocate port structures */
1294 for ( i = 0, as = atserv; i < atservNATSERV; i++, as++ ) {
1295 if (( se = getservbyname( as->as_name, "ddp" )) == NULL ) {
1296 LOG(log_info, logtype_atalkd, "%s: service unknown", as->as_name );
1298 as->as_port = ntohs( se->s_port );
1300 if (( ap = (struct atport *)malloc( sizeof( struct atport ))) ==
1302 LOG(log_error, logtype_atalkd, "malloc: %s", strerror(errno) );
1306 ap->ap_next = iface->i_ports;
1307 ap->ap_iface = iface;
1308 ap->ap_port = as->as_port;
1309 ap->ap_packet = as->as_packet;
1311 iface->i_ports = ap;
1313 } else { /* close ports */
1314 for ( ap = iface->i_ports; ap; ap = ap->ap_next ) {
1315 (void)close( ap->ap_fd );
1320 iface->i_addr.sat_len = sizeof( struct sockaddr_at );
1322 iface->i_addr.sat_family = AF_APPLETALK;
1323 iface->i_addr.sat_addr.s_net = net;
1324 iface->i_addr.sat_addr.s_node = node;
1326 nr.nr_phase = phase;
1327 nr.nr_firstnet = first;
1328 nr.nr_lastnet = last;
1329 memcpy( iface->i_addr.sat_zero, &nr, sizeof( struct netrange ));
1331 if ( ifconfig( iface->i_name, SIOCSIFADDR, &iface->i_addr )) {
1332 LOG(log_error, logtype_atalkd, "setifaddr: %s (%u-%u): %s. try specifying a \
1333 smaller net range.", iface->i_name, ntohs(first), ntohs(last), strerror(errno));
1336 if ( ifconfig( iface->i_name, SIOCGIFADDR, &iface->i_addr )) {
1337 LOG(log_error, logtype_atalkd, "getifaddr: %s: %s", iface->i_name, strerror(errno) );
1342 i = 1; /* enable broadcasts */
1344 LOG(log_info, logtype_atalkd, "setsockopt incompatible w/ Solaris STREAMS module.");
1345 #endif /* __svr4__ */
1346 for ( ap = iface->i_ports; ap; ap = ap->ap_next ) {
1347 if (( ap->ap_fd = socket( AF_APPLETALK, SOCK_DGRAM, 0 )) < 0 ) {
1348 LOG(log_error, logtype_atalkd, "socket: %s", strerror(errno) );
1352 setsockopt(ap->ap_fd, SOL_SOCKET, SO_BROADCAST, &i, sizeof(i));
1353 #endif /* ! __svr4 */
1355 memset( &sat, 0, sizeof( struct sockaddr_at ));
1357 sat.sat_len = sizeof( struct sockaddr_at );
1359 sat.sat_family = AF_APPLETALK;
1360 sat.sat_addr.s_net = iface->i_addr.sat_addr.s_net;
1361 sat.sat_addr.s_node = iface->i_addr.sat_addr.s_node;
1362 sat.sat_port = ap->ap_port;
1364 if ( bind( ap->ap_fd, (struct sockaddr *)&sat,
1365 sizeof( struct sockaddr_at )) < 0 ) {
1366 LOG(log_error, logtype_atalkd, "bind %u.%u:%u: %s",
1367 ntohs( sat.sat_addr.s_net ),
1368 sat.sat_addr.s_node, sat.sat_port, strerror(errno) );
1370 /* remove all interfaces if we have a problem with bind */
1371 for (iface = interfaces; iface; iface = iface->i_next) {
1372 if (ifconfig( iface->i_name, SIOCDIFADDR, &iface->i_addr )) {
1373 #ifdef SIOCATALKDIFADDR
1374 #if (SIOCDIFADDR != SIOCATALKDIFADDR)
1375 ifconfig( iface->i_name, SIOCATALKDIFADDR, &iface->i_addr );
1376 #endif /* SIOCDIFADDR != SIOCATALKDIFADDR */
1377 #endif /* SIOCATALKDIFADDR */
1380 #endif /* SIOCDIFADDR */
1385 /* recalculate nfds and fds */
1387 for ( nfds = 0, iface = interfaces; iface; iface = iface->i_next ) {
1388 for ( ap = iface->i_ports; ap; ap = ap->ap_next ) {
1389 FD_SET( ap->ap_fd, &fds );
1390 if ( ap->ap_fd > nfds ) {
1398 int ifconfig( iname, cmd, sa )
1401 struct sockaddr_at *sa;
1406 memset(&ifr, 0, sizeof(ifr));
1407 strcpy( ifr.ifr_name, iname );
1408 ifr.ifr_addr = *(struct sockaddr *)sa;
1410 if (( s = socket( AF_APPLETALK, SOCK_DGRAM, 0 )) < 0 ) {
1413 if ( ioctl( s, cmd, &ifr ) < 0 ) {
1418 if ( cmd == SIOCGIFADDR ) {
1419 *(struct sockaddr *)sa = ifr.ifr_addr;
1424 void dumpconfig( iface )
1425 struct interface *iface;
1429 printf( "%s", iface->i_name );
1430 if ( iface->i_flags & IFACE_RSEED ) {
1431 printf( " -router" );
1432 } else if ( iface->i_flags & IFACE_SEED ) {
1436 if ( iface->i_flags & IFACE_DONTROUTE)
1437 printf( " -dontroute");
1439 printf( " -phase" );
1440 if ( iface->i_flags & IFACE_PHASE1 ) {
1445 printf( " -net %d", ntohs( iface->i_rt->rt_firstnet ));
1446 if ( iface->i_rt->rt_lastnet != iface->i_rt->rt_firstnet ) {
1447 printf( "-%d", ntohs( iface->i_rt->rt_lastnet ));
1449 printf( " -addr %u.%u", ntohs( iface->i_addr.sat_addr.s_net ),
1450 iface->i_addr.sat_addr.s_node );
1451 printf( " -caddr %u.%u", ntohs( iface->i_caddr.sat_addr.s_net ),
1452 iface->i_caddr.sat_addr.s_node );
1453 for ( l = iface->i_rt->rt_zt; l; l = l->l_next ) {
1454 printf( " -zone %.*s", ((struct ziptab *)l->l_data)->zt_len,
1455 ((struct ziptab *)l->l_data)->zt_name );
1463 struct interface *iface;
1464 struct rtmptab *rtmp;
1468 for ( iface = interfaces; iface; iface = iface->i_next ) {
1469 for ( rtmp = iface->i_rt; rtmp; rtmp = rtmp->rt_inext ) {
1470 if ( rtmp->rt_gate == 0 ) {
1471 if ( rtmp->rt_flags & RTMPTAB_EXTENDED ) {
1472 printf( "%u-%u", ntohs( rtmp->rt_firstnet ),
1473 ntohs( rtmp->rt_lastnet ));
1475 printf( "%u", ntohs( rtmp->rt_firstnet ));
1478 if ( rtmp->rt_flags & RTMPTAB_EXTENDED ) {
1479 printf( "%u.%u for %u-%u",
1480 ntohs( rtmp->rt_gate->g_sat.sat_addr.s_net ),
1481 rtmp->rt_gate->g_sat.sat_addr.s_node,
1482 ntohs( rtmp->rt_firstnet ),
1483 ntohs( rtmp->rt_lastnet ));
1485 printf( "%u.%u for %u",
1486 ntohs( rtmp->rt_gate->g_sat.sat_addr.s_net ),
1487 rtmp->rt_gate->g_sat.sat_addr.s_node,
1488 ntohs( rtmp->rt_firstnet ));
1492 if ( rtmp->rt_iprev == 0 && rtmp != iface->i_rt ) {
1496 for ( l = rtmp->rt_zt; l; l = l->l_next ) {
1497 zt = (struct ziptab *)l->l_data;
1498 printf( " %.*s", zt->zt_len, zt->zt_name );
1511 struct interface *iface;
1512 struct rtmptab *rtmp;
1516 for ( zt = ziptab; zt; zt = zt->zt_next ) {
1517 printf( "%.*s", zt->zt_len, zt->zt_name );
1518 for ( l = zt->zt_rt; l; l = l->l_next ) {
1519 rtmp = (struct rtmptab *)l->l_data;
1520 if ( rtmp->rt_flags & RTMPTAB_EXTENDED ) {
1521 printf( " %u-%u", ntohs( rtmp->rt_firstnet ),
1522 ntohs( rtmp->rt_lastnet ));
1524 printf( " %u", ntohs( rtmp->rt_firstnet ));
1526 if ( rtmp->rt_iprev == 0 && rtmp->rt_gate != 0 ) {