2 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
3 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
4 * Internet Initiative Japan, Inc (IIJ)
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * $FreeBSD: src/usr.sbin/ppp/route.c,v 1.60.2.8 2003/04/05 10:39:05 ume Exp $
29 * $DragonFly: src/usr.sbin/ppp/route.c,v 1.3 2004/03/27 01:39:13 cpressey Exp $
32 #include <sys/param.h>
33 #include <sys/socket.h>
34 #include <net/if_types.h>
35 #include <net/route.h>
37 #include <netinet/in.h>
38 #include <arpa/inet.h>
39 #include <net/if_dl.h>
40 #include <netinet/in_systm.h>
41 #include <netinet/ip.h>
49 #include <sys/sysctl.h>
60 #include "throughput.h"
67 #include "slcompress.h"
71 #include "descriptor.h"
86 p_sockaddr(struct prompt *prompt, struct sockaddr *phost,
87 struct sockaddr *pmask, int width)
89 struct ncprange range;
91 struct sockaddr_dl *dl = (struct sockaddr_dl *)phost;
93 if (log_IsKept(LogDEBUG)) {
96 log_Printf(LogDEBUG, "Found the following sockaddr:\n");
97 log_Printf(LogDEBUG, " Family %d, len %d\n",
98 (int)phost->sa_family, (int)phost->sa_len);
99 inet_ntop(phost->sa_family, phost->sa_data, tmp, sizeof tmp);
100 log_Printf(LogDEBUG, " Addr %s\n", tmp);
102 inet_ntop(pmask->sa_family, pmask->sa_data, tmp, sizeof tmp);
103 log_Printf(LogDEBUG, " Mask %s\n", tmp);
107 switch (phost->sa_family) {
112 ncprange_setsa(&range, phost, pmask);
113 if (ncprange_isdefault(&range))
114 prompt_Printf(prompt, "%-*s ", width - 1, "default");
116 prompt_Printf(prompt, "%-*s ", width - 1, ncprange_ntoa(&range));
121 snprintf(buf, sizeof buf, "%.*s", dl->sdl_nlen, dl->sdl_data);
122 else if (dl->sdl_alen) {
123 if (dl->sdl_type == IFT_ETHER) {
124 if (dl->sdl_alen < sizeof buf / 3) {
128 MAC = (u_char *)dl->sdl_data + dl->sdl_nlen;
129 for (f = 0; f < dl->sdl_alen; f++)
130 sprintf(buf+f*3, "%02x:", MAC[f]);
133 strcpy(buf, "??:??:??:??:??:??");
135 sprintf(buf, "<IFT type %d>", dl->sdl_type);
136 } else if (dl->sdl_slen)
137 sprintf(buf, "<slen %d?>", dl->sdl_slen);
139 sprintf(buf, "link#%d", dl->sdl_index);
143 sprintf(buf, "<AF type %d>", phost->sa_family);
147 prompt_Printf(prompt, "%-*s ", width-1, buf);
155 { RTF_GATEWAY, 'G' },
158 { RTF_DYNAMIC, 'D' },
159 { RTF_MODIFIED, 'M' },
161 { RTF_CLONING, 'C' },
162 { RTF_XRESOLVE, 'X' },
167 { RTF_BLACKHOLE, 'B' },
169 { RTF_WASCLONED, 'W' },
172 { RTF_PRCLONING, 'c' },
178 { RTF_BROADCAST, 'b' },
183 #ifndef RTF_WASCLONED
184 #define RTF_WASCLONED (0)
188 p_flags(struct prompt *prompt, u_int32_t f, unsigned max)
190 char name[33], *flags;
191 struct bits *p = bits;
193 if (max > sizeof name - 1)
194 max = sizeof name - 1;
196 for (flags = name; p->b_mask && flags - name < (int)max; p++)
200 prompt_Printf(prompt, "%-*.*s", max, max, name);
203 static int route_nifs = -1;
209 * XXX: Maybe we should select() on the routing socket so that we can
210 * notice interfaces that come & go (PCCARD support).
211 * Or we could even support a signal that resets these so that
212 * the PCCARD insert/remove events can signal ppp.
214 static char **ifs; /* Figure these out once */
215 static int debug_done; /* Debug once */
217 if (idx > route_nifs || (idx > 0 && ifs[idx-1] == NULL)) {
218 int mib[6], have, had;
220 char *buf, *ptr, *end;
221 struct sockaddr_dl *dl;
222 struct if_msghdr *ifm;
235 mib[4] = NET_RT_IFLIST;
238 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
239 log_Printf(LogERROR, "Index2Nam: sysctl: estimate: %s\n",
241 return NumStr(idx, NULL, 0);
243 if ((buf = malloc(needed)) == NULL)
244 return NumStr(idx, NULL, 0);
245 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
247 return NumStr(idx, NULL, 0);
252 for (ptr = buf; ptr < end; ptr += ifm->ifm_msglen) {
253 ifm = (struct if_msghdr *)ptr;
254 if (ifm->ifm_type != RTM_IFINFO)
256 dl = (struct sockaddr_dl *)(ifm + 1);
257 if (ifm->ifm_index > 0) {
258 if (ifm->ifm_index > have) {
262 have = ifm->ifm_index + 5;
264 newifs = (char **)realloc(ifs, sizeof(char *) * have);
266 newifs = (char **)malloc(sizeof(char *) * have);
268 log_Printf(LogDEBUG, "Index2Nam: %s\n", strerror(errno));
275 return NumStr(idx, NULL, 0);
278 memset(ifs + had, '\0', sizeof(char *) * (have - had));
280 if (ifs[ifm->ifm_index-1] == NULL) {
281 ifs[ifm->ifm_index-1] = (char *)malloc(dl->sdl_nlen+1);
282 memcpy(ifs[ifm->ifm_index-1], dl->sdl_data, dl->sdl_nlen);
283 ifs[ifm->ifm_index-1][dl->sdl_nlen] = '\0';
284 if (route_nifs < ifm->ifm_index)
285 route_nifs = ifm->ifm_index;
287 } else if (log_IsKept(LogDEBUG))
288 log_Printf(LogDEBUG, "Skipping out-of-range interface %d!\n",
294 if (log_IsKept(LogDEBUG) && !debug_done) {
297 log_Printf(LogDEBUG, "Found the following interfaces:\n");
298 for (f = 0; f < route_nifs; f++)
300 log_Printf(LogDEBUG, " Index %d, name \"%s\"\n", f+1, ifs[f]);
304 if (idx < 1 || idx > route_nifs || ifs[idx-1] == NULL)
305 return NumStr(idx, NULL, 0);
311 route_ParseHdr(struct rt_msghdr *rtm, struct sockaddr *sa[RTAX_MAX])
316 wp = (char *)(rtm + 1);
318 for (rtax = 0; rtax < RTAX_MAX; rtax++)
319 if (rtm->rtm_addrs & (1 << rtax)) {
320 sa[rtax] = (struct sockaddr *)wp;
321 wp += RT_ROUNDUP(sa[rtax]->sa_len);
322 if (sa[rtax]->sa_family == 0)
323 sa[rtax] = NULL; /* ??? */
329 route_Show(struct cmdargs const *arg)
331 struct rt_msghdr *rtm;
332 struct sockaddr *sa[RTAX_MAX];
341 mib[4] = NET_RT_DUMP;
343 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
344 log_Printf(LogERROR, "route_Show: sysctl: estimate: %s\n", strerror(errno));
350 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
351 log_Printf(LogERROR, "route_Show: sysctl: getroute: %s\n", strerror(errno));
357 prompt_Printf(arg->prompt, "%-20s%-20sFlags Netif\n",
358 "Destination", "Gateway");
359 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
360 rtm = (struct rt_msghdr *)cp;
362 route_ParseHdr(rtm, sa);
364 if (sa[RTAX_DST] && sa[RTAX_GATEWAY]) {
365 p_sockaddr(arg->prompt, sa[RTAX_DST], sa[RTAX_NETMASK], 20);
366 p_sockaddr(arg->prompt, sa[RTAX_GATEWAY], NULL, 20);
368 p_flags(arg->prompt, rtm->rtm_flags, 6);
369 prompt_Printf(arg->prompt, " %s\n", Index2Nam(rtm->rtm_index));
371 prompt_Printf(arg->prompt, "<can't parse routing entry>\n");
378 * Delete routes associated with our interface
381 route_IfDelete(struct bundle *bundle, int all)
383 struct rt_msghdr *rtm;
384 struct sockaddr *sa[RTAX_MAX];
385 struct ncprange range;
391 log_Printf(LogDEBUG, "route_IfDelete (%d)\n", bundle->iface->index);
397 mib[4] = NET_RT_DUMP;
399 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
400 log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n",
409 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
410 log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n",
417 for (pass = 0; pass < 2; pass++) {
419 * We do 2 passes. The first deletes all cloned routes. The second
420 * deletes all non-cloned routes. This is done to avoid
421 * potential errors from trying to delete route X after route Y where
422 * route X was cloned from route Y (and is no longer there 'cos it
423 * may have gone with route Y).
425 if (RTF_WASCLONED == 0 && pass == 0)
426 /* So we can't tell ! */
428 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
429 rtm = (struct rt_msghdr *)cp;
430 route_ParseHdr(rtm, sa);
431 if (rtm->rtm_index == bundle->iface->index &&
432 sa[RTAX_DST] && sa[RTAX_GATEWAY] &&
433 (sa[RTAX_DST]->sa_family == AF_INET
435 || sa[RTAX_DST]->sa_family == AF_INET6
438 (all || (rtm->rtm_flags & RTF_GATEWAY))) {
439 if (log_IsKept(LogDEBUG)) {
442 ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
443 ncpaddr_setsa(&gw, sa[RTAX_GATEWAY]);
444 snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(&gw));
445 log_Printf(LogDEBUG, "Found %s %s\n", ncprange_ntoa(&range), gwstr);
447 if (sa[RTAX_GATEWAY]->sa_family == AF_INET ||
449 sa[RTAX_GATEWAY]->sa_family == AF_INET6 ||
451 sa[RTAX_GATEWAY]->sa_family == AF_LINK) {
452 if ((pass == 0 && (rtm->rtm_flags & RTF_WASCLONED)) ||
453 (pass == 1 && !(rtm->rtm_flags & RTF_WASCLONED))) {
454 ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
455 rt_Set(bundle, RTM_DELETE, &range, NULL, 0, 0);
457 log_Printf(LogDEBUG, "route_IfDelete: Skip it (pass %d)\n", pass);
460 "route_IfDelete: Can't remove routes for family %d\n",
461 sa[RTAX_GATEWAY]->sa_family);
470 * Update the MTU on all routes for the given interface
473 route_UpdateMTU(struct bundle *bundle)
475 struct rt_msghdr *rtm;
476 struct sockaddr *sa[RTAX_MAX];
482 log_Printf(LogDEBUG, "route_UpdateMTU (%d)\n", bundle->iface->index);
488 mib[4] = NET_RT_DUMP;
490 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
491 log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n",
500 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
501 log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n",
508 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
509 rtm = (struct rt_msghdr *)cp;
510 route_ParseHdr(rtm, sa);
511 if (sa[RTAX_DST] && (sa[RTAX_DST]->sa_family == AF_INET
513 || sa[RTAX_DST]->sa_family == AF_INET6
516 sa[RTAX_GATEWAY] && rtm->rtm_index == bundle->iface->index) {
517 if (log_IsKept(LogTCPIP)) {
518 ncprange_setsa(&dst, sa[RTAX_DST], sa[RTAX_NETMASK]);
519 log_Printf(LogTCPIP, "route_UpdateMTU: Netif: %d (%s), dst %s,"
520 " mtu %lu\n", rtm->rtm_index, Index2Nam(rtm->rtm_index),
521 ncprange_ntoa(&dst), bundle->iface->mtu);
523 rt_Update(bundle, sa[RTAX_DST], sa[RTAX_GATEWAY], sa[RTAX_NETMASK]);
531 GetIfIndex(char *name)
536 while (route_nifs == -1 || idx < route_nifs)
537 if (strcmp(Index2Nam(idx), name) == 0)
545 route_Change(struct bundle *bundle, struct sticky_route *r,
546 const struct ncpaddr *me, const struct ncpaddr *peer)
550 for (; r; r = r->next) {
551 ncprange_getaddr(&r->dst, &dst);
552 if (ncpaddr_family(me) == AF_INET) {
553 if ((r->type & ROUTE_DSTMYADDR) && !ncpaddr_equal(&dst, me)) {
554 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
555 ncprange_sethost(&r->dst, me);
556 if (r->type & ROUTE_GWHISADDR)
557 ncpaddr_copy(&r->gw, peer);
558 } else if ((r->type & ROUTE_DSTHISADDR) && !ncpaddr_equal(&dst, peer)) {
559 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
560 ncprange_sethost(&r->dst, peer);
561 if (r->type & ROUTE_GWHISADDR)
562 ncpaddr_copy(&r->gw, peer);
563 } else if ((r->type & ROUTE_DSTDNS0) && !ncpaddr_equal(&dst, peer)) {
564 if (bundle->ncp.ipcp.ns.dns[0].s_addr == INADDR_NONE)
566 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
567 if (r->type & ROUTE_GWHISADDR)
568 ncpaddr_copy(&r->gw, peer);
569 } else if ((r->type & ROUTE_DSTDNS1) && !ncpaddr_equal(&dst, peer)) {
570 if (bundle->ncp.ipcp.ns.dns[1].s_addr == INADDR_NONE)
572 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
573 if (r->type & ROUTE_GWHISADDR)
574 ncpaddr_copy(&r->gw, peer);
575 } else if ((r->type & ROUTE_GWHISADDR) && !ncpaddr_equal(&r->gw, peer))
576 ncpaddr_copy(&r->gw, peer);
578 } else if (ncpaddr_family(me) == AF_INET6) {
579 if ((r->type & ROUTE_DSTMYADDR6) && !ncpaddr_equal(&dst, me)) {
580 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
581 ncprange_sethost(&r->dst, me);
582 if (r->type & ROUTE_GWHISADDR)
583 ncpaddr_copy(&r->gw, peer);
584 } else if ((r->type & ROUTE_DSTHISADDR6) && !ncpaddr_equal(&dst, peer)) {
585 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
586 ncprange_sethost(&r->dst, peer);
587 if (r->type & ROUTE_GWHISADDR)
588 ncpaddr_copy(&r->gw, peer);
589 } else if ((r->type & ROUTE_GWHISADDR6) && !ncpaddr_equal(&r->gw, peer))
590 ncpaddr_copy(&r->gw, peer);
593 rt_Set(bundle, RTM_ADD, &r->dst, &r->gw, 1, 0);
598 route_Add(struct sticky_route **rp, int type, const struct ncprange *dst,
599 const struct ncpaddr *gw)
601 struct sticky_route *r;
602 int dsttype = type & ROUTE_DSTANY;
606 if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) ||
607 (!dsttype && ncprange_equal(&(*rp)->dst, dst))) {
608 /* Oops, we already have this route - unlink it */
609 free(r); /* impossible really */
617 r = (struct sticky_route *)malloc(sizeof(struct sticky_route));
620 ncprange_copy(&r->dst, dst);
621 ncpaddr_copy(&r->gw, gw);
626 route_Delete(struct sticky_route **rp, int type, const struct ncprange *dst)
628 struct sticky_route *r;
629 int dsttype = type & ROUTE_DSTANY;
631 for (; *rp; rp = &(*rp)->next) {
632 if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) ||
633 (!dsttype && ncprange_equal(dst, &(*rp)->dst))) {
643 route_DeleteAll(struct sticky_route **rp)
645 struct sticky_route *r, *rn;
647 for (r = *rp; r; r = rn) {
655 route_ShowSticky(struct prompt *p, struct sticky_route *r, const char *tag,
658 int tlen = strlen(tag);
660 if (tlen + 2 > indent)
661 prompt_Printf(p, "%s:\n%*s", tag, indent, "");
663 prompt_Printf(p, "%s:%*s", tag, indent - tlen - 1, "");
665 for (; r; r = r->next) {
666 prompt_Printf(p, "%*sadd ", tlen ? 0 : indent, "");
668 if (r->type & ROUTE_DSTMYADDR)
669 prompt_Printf(p, "MYADDR");
670 else if (r->type & ROUTE_DSTMYADDR6)
671 prompt_Printf(p, "MYADDR6");
672 else if (r->type & ROUTE_DSTHISADDR)
673 prompt_Printf(p, "HISADDR");
674 else if (r->type & ROUTE_DSTHISADDR6)
675 prompt_Printf(p, "HISADDR6");
676 else if (r->type & ROUTE_DSTDNS0)
677 prompt_Printf(p, "DNS0");
678 else if (r->type & ROUTE_DSTDNS1)
679 prompt_Printf(p, "DNS1");
680 else if (ncprange_isdefault(&r->dst))
681 prompt_Printf(p, "default");
683 prompt_Printf(p, "%s", ncprange_ntoa(&r->dst));
685 if (r->type & ROUTE_GWHISADDR)
686 prompt_Printf(p, " HISADDR\n");
687 else if (r->type & ROUTE_GWHISADDR6)
688 prompt_Printf(p, " HISADDR6\n");
690 prompt_Printf(p, " %s\n", ncpaddr_ntoa(&r->gw));
695 struct rt_msghdr m_rtm;
700 memcpy_roundup(char *cp, const void *data, size_t len)
704 padlen = RT_ROUNDUP(len);
705 memcpy(cp, data, len);
707 memset(cp + len, '\0', padlen - len);
712 #if defined(__KAME__) && !defined(NOINET6)
714 add_scope(struct sockaddr *sa, int ifindex)
716 struct sockaddr_in6 *sa6;
718 if (sa->sa_family != AF_INET6)
720 sa6 = (struct sockaddr_in6 *)sa;
721 if (!IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) &&
722 !IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr))
724 if (*(u_int16_t *)&sa6->sin6_addr.s6_addr[2] != 0)
726 *(u_int16_t *)&sa6->sin6_addr.s6_addr[2] = htons(ifindex);
731 rt_Set(struct bundle *bundle, int cmd, const struct ncprange *dst,
732 const struct ncpaddr *gw, int bang, int quiet)
738 struct sockaddr_storage sadst, samask, sagw;
742 cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!");
744 cmdstr = (cmd == RTM_ADD ? "Add" : "Delete");
745 s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
747 log_Printf(LogERROR, "rt_Set: socket(): %s\n", strerror(errno));
750 memset(&rtmes, '\0', sizeof rtmes);
751 rtmes.m_rtm.rtm_version = RTM_VERSION;
752 rtmes.m_rtm.rtm_type = cmd;
753 rtmes.m_rtm.rtm_addrs = RTA_DST;
754 rtmes.m_rtm.rtm_seq = ++bundle->routing_seq;
755 rtmes.m_rtm.rtm_pid = getpid();
756 rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
758 if (cmd == RTM_ADD) {
759 if (bundle->ncp.cfg.sendpipe > 0) {
760 rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe;
761 rtmes.m_rtm.rtm_inits |= RTV_SPIPE;
763 if (bundle->ncp.cfg.recvpipe > 0) {
764 rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe;
765 rtmes.m_rtm.rtm_inits |= RTV_RPIPE;
769 ncprange_getsa(dst, &sadst, &samask);
770 #if defined(__KAME__) && !defined(NOINET6)
771 add_scope((struct sockaddr *)&sadst, bundle->iface->index);
775 cp += memcpy_roundup(cp, &sadst, sadst.ss_len);
776 if (cmd == RTM_ADD) {
778 log_Printf(LogERROR, "rt_Set: Program error\n");
782 ncpaddr_getsa(gw, &sagw);
783 #if defined(__KAME__) && !defined(NOINET6)
784 add_scope((struct sockaddr *)&sagw, bundle->iface->index);
786 if (ncpaddr_isdefault(gw)) {
788 log_Printf(LogERROR, "rt_Set: Cannot add a route with"
789 " gateway 0.0.0.0\n");
793 cp += memcpy_roundup(cp, &sagw, sagw.ss_len);
794 rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
798 if (!ncprange_ishost(dst)) {
799 cp += memcpy_roundup(cp, &samask, samask.ss_len);
800 rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
803 nb = cp - (char *)&rtmes;
804 rtmes.m_rtm.rtm_msglen = nb;
805 wb = ID0write(s, &rtmes, nb);
807 log_Printf(LogTCPIP, "rt_Set failure:\n");
808 log_Printf(LogTCPIP, "rt_Set: Cmd = %s\n", cmdstr);
809 log_Printf(LogTCPIP, "rt_Set: Dst = %s\n", ncprange_ntoa(dst));
811 log_Printf(LogTCPIP, "rt_Set: Gateway = %s\n", ncpaddr_ntoa(gw));
813 if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST ||
814 (rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST))) {
816 log_Printf(LogWARN, "Add route failed: %s already exists\n",
818 result = 0; /* Don't add to our dynamic list */
820 rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE;
821 if ((wb = ID0write(s, &rtmes, nb)) < 0)
824 } else if (cmd == RTM_DELETE &&
825 (rtmes.m_rtm.rtm_errno == ESRCH ||
826 (rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) {
828 log_Printf(LogWARN, "Del route failed: %s: Non-existent\n",
830 } else if (rtmes.m_rtm.rtm_errno == 0) {
831 if (!quiet || errno != ENETUNREACH)
832 log_Printf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr,
833 ncprange_ntoa(dst), strerror(errno));
835 log_Printf(LogWARN, "%s route failed: %s: %s\n",
836 cmdstr, ncprange_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno));
839 if (log_IsKept(LogDEBUG)) {
843 snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(gw));
845 snprintf(gwstr, sizeof gwstr, "<none>");
846 log_Printf(LogDEBUG, "wrote %d: cmd = %s, dst = %s, gateway = %s\n",
847 wb, cmdstr, ncprange_ntoa(dst), gwstr);
855 rt_Update(struct bundle *bundle, const struct sockaddr *dst,
856 const struct sockaddr *gw, const struct sockaddr *mask)
858 struct ncprange ncpdst;
863 s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
865 log_Printf(LogERROR, "rt_Update: socket(): %s\n", strerror(errno));
869 memset(&rtmes, '\0', sizeof rtmes);
870 rtmes.m_rtm.rtm_version = RTM_VERSION;
871 rtmes.m_rtm.rtm_type = RTM_CHANGE;
872 rtmes.m_rtm.rtm_addrs = 0;
873 rtmes.m_rtm.rtm_seq = ++bundle->routing_seq;
874 rtmes.m_rtm.rtm_pid = getpid();
875 rtmes.m_rtm.rtm_flags = RTF_UP | RTF_STATIC;
877 if (bundle->ncp.cfg.sendpipe > 0) {
878 rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe;
879 rtmes.m_rtm.rtm_inits |= RTV_SPIPE;
882 if (bundle->ncp.cfg.recvpipe > 0) {
883 rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe;
884 rtmes.m_rtm.rtm_inits |= RTV_RPIPE;
887 rtmes.m_rtm.rtm_rmx.rmx_mtu = bundle->iface->mtu;
888 rtmes.m_rtm.rtm_inits |= RTV_MTU;
892 rtmes.m_rtm.rtm_addrs |= RTA_DST;
893 p += memcpy_roundup(p, dst, dst->sa_len);
896 rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
897 p += memcpy_roundup(p, gw, gw->sa_len);
899 rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
900 p += memcpy_roundup(p, mask, mask->sa_len);
903 rtmes.m_rtm.rtm_msglen = p - (char *)&rtmes;
905 wb = ID0write(s, &rtmes, rtmes.m_rtm.rtm_msglen);
907 ncprange_setsa(&ncpdst, dst, mask);
909 log_Printf(LogTCPIP, "rt_Update failure:\n");
910 log_Printf(LogTCPIP, "rt_Update: Dst = %s\n", ncprange_ntoa(&ncpdst));
912 if (rtmes.m_rtm.rtm_errno == 0)
913 log_Printf(LogWARN, "%s: Change route failed: errno: %s\n",
914 ncprange_ntoa(&ncpdst), strerror(errno));
916 log_Printf(LogWARN, "%s: Change route failed: %s\n",
917 ncprange_ntoa(&ncpdst), strerror(rtmes.m_rtm.rtm_errno));