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 $
31 #include <sys/param.h>
32 #include <sys/socket.h>
33 #include <net/if_types.h>
34 #include <net/route.h>
36 #include <netinet/in.h>
37 #include <arpa/inet.h>
38 #include <net/if_dl.h>
39 #include <netinet/in_systm.h>
40 #include <netinet/ip.h>
48 #include <sys/sysctl.h>
59 #include "throughput.h"
66 #include "slcompress.h"
70 #include "descriptor.h"
85 p_sockaddr(struct prompt *prompt, struct sockaddr *phost,
86 struct sockaddr *pmask, int width)
88 struct ncprange range;
90 struct sockaddr_dl *dl = (struct sockaddr_dl *)phost;
92 if (log_IsKept(LogDEBUG)) {
95 log_Printf(LogDEBUG, "Found the following sockaddr:\n");
96 log_Printf(LogDEBUG, " Family %d, len %d\n",
97 (int)phost->sa_family, (int)phost->sa_len);
98 inet_ntop(phost->sa_family, phost->sa_data, tmp, sizeof tmp);
99 log_Printf(LogDEBUG, " Addr %s\n", tmp);
101 inet_ntop(pmask->sa_family, pmask->sa_data, tmp, sizeof tmp);
102 log_Printf(LogDEBUG, " Mask %s\n", tmp);
106 switch (phost->sa_family) {
111 ncprange_setsa(&range, phost, pmask);
112 if (ncprange_isdefault(&range))
113 prompt_Printf(prompt, "%-*s ", width - 1, "default");
115 prompt_Printf(prompt, "%-*s ", width - 1, ncprange_ntoa(&range));
120 snprintf(buf, sizeof buf, "%.*s", dl->sdl_nlen, dl->sdl_data);
121 else if (dl->sdl_alen) {
122 if (dl->sdl_type == IFT_ETHER) {
123 if (dl->sdl_alen < sizeof buf / 3) {
127 MAC = (u_char *)dl->sdl_data + dl->sdl_nlen;
128 for (f = 0; f < dl->sdl_alen; f++)
129 sprintf(buf+f*3, "%02x:", MAC[f]);
132 strcpy(buf, "??:??:??:??:??:??");
134 sprintf(buf, "<IFT type %d>", dl->sdl_type);
135 } else if (dl->sdl_slen)
136 sprintf(buf, "<slen %d?>", dl->sdl_slen);
138 sprintf(buf, "link#%d", dl->sdl_index);
142 sprintf(buf, "<AF type %d>", phost->sa_family);
146 prompt_Printf(prompt, "%-*s ", width-1, buf);
154 { RTF_GATEWAY, 'G' },
157 { RTF_DYNAMIC, 'D' },
158 { RTF_MODIFIED, 'M' },
160 { RTF_CLONING, 'C' },
161 { RTF_XRESOLVE, 'X' },
166 { RTF_BLACKHOLE, 'B' },
168 { RTF_WASCLONED, 'W' },
171 { RTF_PRCLONING, 'c' },
177 { RTF_BROADCAST, 'b' },
182 #ifndef RTF_WASCLONED
183 #define RTF_WASCLONED (0)
187 p_flags(struct prompt *prompt, u_int32_t f, int max)
189 char name[33], *flags;
190 register struct bits *p = bits;
192 if (max > sizeof name - 1)
193 max = sizeof name - 1;
195 for (flags = name; p->b_mask && flags - name < max; p++)
199 prompt_Printf(prompt, "%-*.*s", max, max, name);
202 static int route_nifs = -1;
208 * XXX: Maybe we should select() on the routing socket so that we can
209 * notice interfaces that come & go (PCCARD support).
210 * Or we could even support a signal that resets these so that
211 * the PCCARD insert/remove events can signal ppp.
213 static char **ifs; /* Figure these out once */
214 static int debug_done; /* Debug once */
216 if (idx > route_nifs || (idx > 0 && ifs[idx-1] == NULL)) {
217 int mib[6], have, had;
219 char *buf, *ptr, *end;
220 struct sockaddr_dl *dl;
221 struct if_msghdr *ifm;
234 mib[4] = NET_RT_IFLIST;
237 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
238 log_Printf(LogERROR, "Index2Nam: sysctl: estimate: %s\n",
240 return NumStr(idx, NULL, 0);
242 if ((buf = malloc(needed)) == NULL)
243 return NumStr(idx, NULL, 0);
244 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
246 return NumStr(idx, NULL, 0);
251 for (ptr = buf; ptr < end; ptr += ifm->ifm_msglen) {
252 ifm = (struct if_msghdr *)ptr;
253 if (ifm->ifm_type != RTM_IFINFO)
255 dl = (struct sockaddr_dl *)(ifm + 1);
256 if (ifm->ifm_index > 0) {
257 if (ifm->ifm_index > have) {
261 have = ifm->ifm_index + 5;
263 newifs = (char **)realloc(ifs, sizeof(char *) * have);
265 newifs = (char **)malloc(sizeof(char *) * have);
267 log_Printf(LogDEBUG, "Index2Nam: %s\n", strerror(errno));
274 return NumStr(idx, NULL, 0);
277 memset(ifs + had, '\0', sizeof(char *) * (have - had));
279 if (ifs[ifm->ifm_index-1] == NULL) {
280 ifs[ifm->ifm_index-1] = (char *)malloc(dl->sdl_nlen+1);
281 memcpy(ifs[ifm->ifm_index-1], dl->sdl_data, dl->sdl_nlen);
282 ifs[ifm->ifm_index-1][dl->sdl_nlen] = '\0';
283 if (route_nifs < ifm->ifm_index)
284 route_nifs = ifm->ifm_index;
286 } else if (log_IsKept(LogDEBUG))
287 log_Printf(LogDEBUG, "Skipping out-of-range interface %d!\n",
293 if (log_IsKept(LogDEBUG) && !debug_done) {
296 log_Printf(LogDEBUG, "Found the following interfaces:\n");
297 for (f = 0; f < route_nifs; f++)
299 log_Printf(LogDEBUG, " Index %d, name \"%s\"\n", f+1, ifs[f]);
303 if (idx < 1 || idx > route_nifs || ifs[idx-1] == NULL)
304 return NumStr(idx, NULL, 0);
310 route_ParseHdr(struct rt_msghdr *rtm, struct sockaddr *sa[RTAX_MAX])
315 wp = (char *)(rtm + 1);
317 for (rtax = 0; rtax < RTAX_MAX; rtax++)
318 if (rtm->rtm_addrs & (1 << rtax)) {
319 sa[rtax] = (struct sockaddr *)wp;
320 wp += ROUNDUP(sa[rtax]->sa_len);
321 if (sa[rtax]->sa_family == 0)
322 sa[rtax] = NULL; /* ??? */
328 route_Show(struct cmdargs const *arg)
330 struct rt_msghdr *rtm;
331 struct sockaddr *sa[RTAX_MAX];
340 mib[4] = NET_RT_DUMP;
342 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
343 log_Printf(LogERROR, "route_Show: sysctl: estimate: %s\n", strerror(errno));
349 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
350 log_Printf(LogERROR, "route_Show: sysctl: getroute: %s\n", strerror(errno));
356 prompt_Printf(arg->prompt, "%-20s%-20sFlags Netif\n",
357 "Destination", "Gateway");
358 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
359 rtm = (struct rt_msghdr *)cp;
361 route_ParseHdr(rtm, sa);
363 if (sa[RTAX_DST] && sa[RTAX_GATEWAY]) {
364 p_sockaddr(arg->prompt, sa[RTAX_DST], sa[RTAX_NETMASK], 20);
365 p_sockaddr(arg->prompt, sa[RTAX_GATEWAY], NULL, 20);
367 p_flags(arg->prompt, rtm->rtm_flags, 6);
368 prompt_Printf(arg->prompt, " %s\n", Index2Nam(rtm->rtm_index));
370 prompt_Printf(arg->prompt, "<can't parse routing entry>\n");
377 * Delete routes associated with our interface
380 route_IfDelete(struct bundle *bundle, int all)
382 struct rt_msghdr *rtm;
383 struct sockaddr *sa[RTAX_MAX];
384 struct ncprange range;
390 log_Printf(LogDEBUG, "route_IfDelete (%d)\n", bundle->iface->index);
396 mib[4] = NET_RT_DUMP;
398 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
399 log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n",
408 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
409 log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n",
416 for (pass = 0; pass < 2; pass++) {
418 * We do 2 passes. The first deletes all cloned routes. The second
419 * deletes all non-cloned routes. This is done to avoid
420 * potential errors from trying to delete route X after route Y where
421 * route X was cloned from route Y (and is no longer there 'cos it
422 * may have gone with route Y).
424 if (RTF_WASCLONED == 0 && pass == 0)
425 /* So we can't tell ! */
427 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
428 rtm = (struct rt_msghdr *)cp;
429 route_ParseHdr(rtm, sa);
430 if (rtm->rtm_index == bundle->iface->index &&
431 sa[RTAX_DST] && sa[RTAX_GATEWAY] &&
432 (sa[RTAX_DST]->sa_family == AF_INET
434 || sa[RTAX_DST]->sa_family == AF_INET6
437 (all || (rtm->rtm_flags & RTF_GATEWAY))) {
438 if (log_IsKept(LogDEBUG)) {
441 ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
442 ncpaddr_setsa(&gw, sa[RTAX_GATEWAY]);
443 snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(&gw));
444 log_Printf(LogDEBUG, "Found %s %s\n", ncprange_ntoa(&range), gwstr);
446 if (sa[RTAX_GATEWAY]->sa_family == AF_INET ||
448 sa[RTAX_GATEWAY]->sa_family == AF_INET6 ||
450 sa[RTAX_GATEWAY]->sa_family == AF_LINK) {
451 if ((pass == 0 && (rtm->rtm_flags & RTF_WASCLONED)) ||
452 (pass == 1 && !(rtm->rtm_flags & RTF_WASCLONED))) {
453 ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]);
454 rt_Set(bundle, RTM_DELETE, &range, NULL, 0, 0);
456 log_Printf(LogDEBUG, "route_IfDelete: Skip it (pass %d)\n", pass);
459 "route_IfDelete: Can't remove routes for family %d\n",
460 sa[RTAX_GATEWAY]->sa_family);
469 * Update the MTU on all routes for the given interface
472 route_UpdateMTU(struct bundle *bundle)
474 struct rt_msghdr *rtm;
475 struct sockaddr *sa[RTAX_MAX];
481 log_Printf(LogDEBUG, "route_UpdateMTU (%d)\n", bundle->iface->index);
487 mib[4] = NET_RT_DUMP;
489 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
490 log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n",
499 if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
500 log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n",
507 for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
508 rtm = (struct rt_msghdr *)cp;
509 route_ParseHdr(rtm, sa);
510 if (sa[RTAX_DST] && (sa[RTAX_DST]->sa_family == AF_INET
512 || sa[RTAX_DST]->sa_family == AF_INET6
515 sa[RTAX_GATEWAY] && rtm->rtm_index == bundle->iface->index) {
516 if (log_IsKept(LogTCPIP)) {
517 ncprange_setsa(&dst, sa[RTAX_DST], sa[RTAX_NETMASK]);
518 log_Printf(LogTCPIP, "route_UpdateMTU: Netif: %d (%s), dst %s,"
519 " mtu %d\n", rtm->rtm_index, Index2Nam(rtm->rtm_index),
520 ncprange_ntoa(&dst), bundle->iface->mtu);
522 rt_Update(bundle, sa[RTAX_DST], sa[RTAX_GATEWAY], sa[RTAX_NETMASK]);
530 GetIfIndex(char *name)
535 while (route_nifs == -1 || idx < route_nifs)
536 if (strcmp(Index2Nam(idx), name) == 0)
544 route_Change(struct bundle *bundle, struct sticky_route *r,
545 const struct ncpaddr *me, const struct ncpaddr *peer)
549 for (; r; r = r->next) {
550 ncprange_getaddr(&r->dst, &dst);
551 if (ncpaddr_family(me) == AF_INET) {
552 if ((r->type & ROUTE_DSTMYADDR) && !ncpaddr_equal(&dst, me)) {
553 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
554 ncprange_sethost(&r->dst, me);
555 if (r->type & ROUTE_GWHISADDR)
556 ncpaddr_copy(&r->gw, peer);
557 } else if ((r->type & ROUTE_DSTHISADDR) && !ncpaddr_equal(&dst, peer)) {
558 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
559 ncprange_sethost(&r->dst, peer);
560 if (r->type & ROUTE_GWHISADDR)
561 ncpaddr_copy(&r->gw, peer);
562 } else if ((r->type & ROUTE_DSTDNS0) && !ncpaddr_equal(&dst, peer)) {
563 if (bundle->ncp.ipcp.ns.dns[0].s_addr == INADDR_NONE)
565 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
566 if (r->type & ROUTE_GWHISADDR)
567 ncpaddr_copy(&r->gw, peer);
568 } else if ((r->type & ROUTE_DSTDNS1) && !ncpaddr_equal(&dst, peer)) {
569 if (bundle->ncp.ipcp.ns.dns[1].s_addr == INADDR_NONE)
571 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
572 if (r->type & ROUTE_GWHISADDR)
573 ncpaddr_copy(&r->gw, peer);
574 } else if ((r->type & ROUTE_GWHISADDR) && !ncpaddr_equal(&r->gw, peer))
575 ncpaddr_copy(&r->gw, peer);
577 } else if (ncpaddr_family(me) == AF_INET6) {
578 if ((r->type & ROUTE_DSTMYADDR6) && !ncpaddr_equal(&dst, me)) {
579 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
580 ncprange_sethost(&r->dst, me);
581 if (r->type & ROUTE_GWHISADDR)
582 ncpaddr_copy(&r->gw, peer);
583 } else if ((r->type & ROUTE_DSTHISADDR6) && !ncpaddr_equal(&dst, peer)) {
584 rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0);
585 ncprange_sethost(&r->dst, peer);
586 if (r->type & ROUTE_GWHISADDR)
587 ncpaddr_copy(&r->gw, peer);
588 } else if ((r->type & ROUTE_GWHISADDR6) && !ncpaddr_equal(&r->gw, peer))
589 ncpaddr_copy(&r->gw, peer);
592 rt_Set(bundle, RTM_ADD, &r->dst, &r->gw, 1, 0);
597 route_Add(struct sticky_route **rp, int type, const struct ncprange *dst,
598 const struct ncpaddr *gw)
600 struct sticky_route *r;
601 int dsttype = type & ROUTE_DSTANY;
605 if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) ||
606 (!dsttype && ncprange_equal(&(*rp)->dst, dst))) {
607 /* Oops, we already have this route - unlink it */
608 free(r); /* impossible really */
616 r = (struct sticky_route *)malloc(sizeof(struct sticky_route));
619 ncprange_copy(&r->dst, dst);
620 ncpaddr_copy(&r->gw, gw);
625 route_Delete(struct sticky_route **rp, int type, const struct ncprange *dst)
627 struct sticky_route *r;
628 int dsttype = type & ROUTE_DSTANY;
630 for (; *rp; rp = &(*rp)->next) {
631 if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) ||
632 (!dsttype && ncprange_equal(dst, &(*rp)->dst))) {
642 route_DeleteAll(struct sticky_route **rp)
644 struct sticky_route *r, *rn;
646 for (r = *rp; r; r = rn) {
654 route_ShowSticky(struct prompt *p, struct sticky_route *r, const char *tag,
657 int tlen = strlen(tag);
659 if (tlen + 2 > indent)
660 prompt_Printf(p, "%s:\n%*s", tag, indent, "");
662 prompt_Printf(p, "%s:%*s", tag, indent - tlen - 1, "");
664 for (; r; r = r->next) {
665 prompt_Printf(p, "%*sadd ", tlen ? 0 : indent, "");
667 if (r->type & ROUTE_DSTMYADDR)
668 prompt_Printf(p, "MYADDR");
669 else if (r->type & ROUTE_DSTMYADDR6)
670 prompt_Printf(p, "MYADDR6");
671 else if (r->type & ROUTE_DSTHISADDR)
672 prompt_Printf(p, "HISADDR");
673 else if (r->type & ROUTE_DSTHISADDR6)
674 prompt_Printf(p, "HISADDR6");
675 else if (r->type & ROUTE_DSTDNS0)
676 prompt_Printf(p, "DNS0");
677 else if (r->type & ROUTE_DSTDNS1)
678 prompt_Printf(p, "DNS1");
679 else if (ncprange_isdefault(&r->dst))
680 prompt_Printf(p, "default");
682 prompt_Printf(p, "%s", ncprange_ntoa(&r->dst));
684 if (r->type & ROUTE_GWHISADDR)
685 prompt_Printf(p, " HISADDR\n");
686 else if (r->type & ROUTE_GWHISADDR6)
687 prompt_Printf(p, " HISADDR6\n");
689 prompt_Printf(p, " %s\n", ncpaddr_ntoa(&r->gw));
694 struct rt_msghdr m_rtm;
699 memcpy_roundup(char *cp, const void *data, size_t len)
703 padlen = ROUNDUP(len);
704 memcpy(cp, data, len);
706 memset(cp + len, '\0', padlen - len);
711 #if defined(__KAME__) && !defined(NOINET6)
713 add_scope(struct sockaddr *sa, int ifindex)
715 struct sockaddr_in6 *sa6;
717 if (sa->sa_family != AF_INET6)
719 sa6 = (struct sockaddr_in6 *)sa;
720 if (!IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) &&
721 !IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr))
723 if (*(u_int16_t *)&sa6->sin6_addr.s6_addr[2] != 0)
725 *(u_int16_t *)&sa6->sin6_addr.s6_addr[2] = htons(ifindex);
730 rt_Set(struct bundle *bundle, int cmd, const struct ncprange *dst,
731 const struct ncpaddr *gw, int bang, int quiet)
737 struct sockaddr_storage sadst, samask, sagw;
741 cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!");
743 cmdstr = (cmd == RTM_ADD ? "Add" : "Delete");
744 s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
746 log_Printf(LogERROR, "rt_Set: socket(): %s\n", strerror(errno));
749 memset(&rtmes, '\0', sizeof rtmes);
750 rtmes.m_rtm.rtm_version = RTM_VERSION;
751 rtmes.m_rtm.rtm_type = cmd;
752 rtmes.m_rtm.rtm_addrs = RTA_DST;
753 rtmes.m_rtm.rtm_seq = ++bundle->routing_seq;
754 rtmes.m_rtm.rtm_pid = getpid();
755 rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
757 if (cmd == RTM_ADD) {
758 if (bundle->ncp.cfg.sendpipe > 0) {
759 rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe;
760 rtmes.m_rtm.rtm_inits |= RTV_SPIPE;
762 if (bundle->ncp.cfg.recvpipe > 0) {
763 rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe;
764 rtmes.m_rtm.rtm_inits |= RTV_RPIPE;
768 ncprange_getsa(dst, &sadst, &samask);
769 #if defined(__KAME__) && !defined(NOINET6)
770 add_scope((struct sockaddr *)&sadst, bundle->iface->index);
774 cp += memcpy_roundup(cp, &sadst, sadst.ss_len);
775 if (cmd == RTM_ADD) {
777 log_Printf(LogERROR, "rt_Set: Program error\n");
781 ncpaddr_getsa(gw, &sagw);
782 #if defined(__KAME__) && !defined(NOINET6)
783 add_scope((struct sockaddr *)&sagw, bundle->iface->index);
785 if (ncpaddr_isdefault(gw)) {
787 log_Printf(LogERROR, "rt_Set: Cannot add a route with"
788 " gateway 0.0.0.0\n");
792 cp += memcpy_roundup(cp, &sagw, sagw.ss_len);
793 rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
797 if (!ncprange_ishost(dst)) {
798 cp += memcpy_roundup(cp, &samask, samask.ss_len);
799 rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
802 nb = cp - (char *)&rtmes;
803 rtmes.m_rtm.rtm_msglen = nb;
804 wb = ID0write(s, &rtmes, nb);
806 log_Printf(LogTCPIP, "rt_Set failure:\n");
807 log_Printf(LogTCPIP, "rt_Set: Cmd = %s\n", cmdstr);
808 log_Printf(LogTCPIP, "rt_Set: Dst = %s\n", ncprange_ntoa(dst));
810 log_Printf(LogTCPIP, "rt_Set: Gateway = %s\n", ncpaddr_ntoa(gw));
812 if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST ||
813 (rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST))) {
815 log_Printf(LogWARN, "Add route failed: %s already exists\n",
817 result = 0; /* Don't add to our dynamic list */
819 rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE;
820 if ((wb = ID0write(s, &rtmes, nb)) < 0)
823 } else if (cmd == RTM_DELETE &&
824 (rtmes.m_rtm.rtm_errno == ESRCH ||
825 (rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) {
827 log_Printf(LogWARN, "Del route failed: %s: Non-existent\n",
829 } else if (rtmes.m_rtm.rtm_errno == 0) {
830 if (!quiet || errno != ENETUNREACH)
831 log_Printf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr,
832 ncprange_ntoa(dst), strerror(errno));
834 log_Printf(LogWARN, "%s route failed: %s: %s\n",
835 cmdstr, ncprange_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno));
838 if (log_IsKept(LogDEBUG)) {
842 snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(gw));
844 snprintf(gwstr, sizeof gwstr, "<none>");
845 log_Printf(LogDEBUG, "wrote %d: cmd = %s, dst = %s, gateway = %s\n",
846 wb, cmdstr, ncprange_ntoa(dst), gwstr);
854 rt_Update(struct bundle *bundle, const struct sockaddr *dst,
855 const struct sockaddr *gw, const struct sockaddr *mask)
857 struct ncprange ncpdst;
862 s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
864 log_Printf(LogERROR, "rt_Update: socket(): %s\n", strerror(errno));
868 memset(&rtmes, '\0', sizeof rtmes);
869 rtmes.m_rtm.rtm_version = RTM_VERSION;
870 rtmes.m_rtm.rtm_type = RTM_CHANGE;
871 rtmes.m_rtm.rtm_addrs = 0;
872 rtmes.m_rtm.rtm_seq = ++bundle->routing_seq;
873 rtmes.m_rtm.rtm_pid = getpid();
874 rtmes.m_rtm.rtm_flags = RTF_UP | RTF_STATIC;
876 if (bundle->ncp.cfg.sendpipe > 0) {
877 rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe;
878 rtmes.m_rtm.rtm_inits |= RTV_SPIPE;
881 if (bundle->ncp.cfg.recvpipe > 0) {
882 rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe;
883 rtmes.m_rtm.rtm_inits |= RTV_RPIPE;
886 rtmes.m_rtm.rtm_rmx.rmx_mtu = bundle->iface->mtu;
887 rtmes.m_rtm.rtm_inits |= RTV_MTU;
891 rtmes.m_rtm.rtm_addrs |= RTA_DST;
892 p += memcpy_roundup(p, dst, dst->sa_len);
895 rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
896 p += memcpy_roundup(p, gw, gw->sa_len);
898 rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
899 p += memcpy_roundup(p, mask, mask->sa_len);
902 rtmes.m_rtm.rtm_msglen = p - (char *)&rtmes;
904 wb = ID0write(s, &rtmes, rtmes.m_rtm.rtm_msglen);
906 ncprange_setsa(&ncpdst, dst, mask);
908 log_Printf(LogTCPIP, "rt_Update failure:\n");
909 log_Printf(LogTCPIP, "rt_Update: Dst = %s\n", ncprange_ntoa(&ncpdst));
911 if (rtmes.m_rtm.rtm_errno == 0)
912 log_Printf(LogWARN, "%s: Change route failed: errno: %s\n",
913 ncprange_ntoa(&ncpdst), strerror(errno));
915 log_Printf(LogWARN, "%s: Change route failed: %s\n",
916 ncprange_ntoa(&ncpdst), strerror(rtmes.m_rtm.rtm_errno));