178189Sbrian/*- 278189Sbrian * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 378189Sbrian * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 478189Sbrian * Internet Initiative Japan, Inc (IIJ) 578189Sbrian * All rights reserved. 66059Samurai * 778189Sbrian * Redistribution and use in source and binary forms, with or without 878189Sbrian * modification, are permitted provided that the following conditions 978189Sbrian * are met: 1078189Sbrian * 1. Redistributions of source code must retain the above copyright 1178189Sbrian * notice, this list of conditions and the following disclaimer. 1278189Sbrian * 2. Redistributions in binary form must reproduce the above copyright 1378189Sbrian * notice, this list of conditions and the following disclaimer in the 1478189Sbrian * documentation and/or other materials provided with the distribution. 156059Samurai * 1678189Sbrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1778189Sbrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1878189Sbrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1978189Sbrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2078189Sbrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2178189Sbrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2278189Sbrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2378189Sbrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2478189Sbrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2578189Sbrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2678189Sbrian * SUCH DAMAGE. 276059Samurai * 2850479Speter * $FreeBSD: releng/11.0/usr.sbin/ppp/route.c 263203 2014-03-15 06:49:32Z glebius $ 296059Samurai */ 3030715Sbrian 3143313Sbrian#include <sys/param.h> 326059Samurai#include <sys/socket.h> 3331176Sbrian#include <net/if_types.h> 3430715Sbrian#include <net/route.h> 3530715Sbrian#include <net/if.h> 3630715Sbrian#include <netinet/in.h> 3730715Sbrian#include <arpa/inet.h> 3831176Sbrian#include <net/if_dl.h> 3936285Sbrian#include <netinet/in_systm.h> 4036285Sbrian#include <netinet/ip.h> 4136285Sbrian#include <sys/un.h> 4220287Swollman 4320287Swollman#include <errno.h> 44102500Sbrian#include <stdarg.h> 4530715Sbrian#include <stdio.h> 466059Samurai#include <stdlib.h> 476059Samurai#include <string.h> 4830715Sbrian#include <sys/sysctl.h> 4936285Sbrian#include <termios.h> 5075212Sbrian#include <unistd.h> 5120287Swollman 5246686Sbrian#include "layer.h" 5337009Sbrian#include "defs.h" 5431343Sbrian#include "command.h" 5530715Sbrian#include "mbuf.h" 569439Samurai#include "log.h" 5736285Sbrian#include "iplist.h" 5836285Sbrian#include "timer.h" 5936285Sbrian#include "throughput.h" 6036285Sbrian#include "lqr.h" 6136285Sbrian#include "hdlc.h" 6236285Sbrian#include "fsm.h" 6336285Sbrian#include "lcp.h" 6436285Sbrian#include "ccp.h" 6536285Sbrian#include "link.h" 6636285Sbrian#include "slcompress.h" 6781634Sbrian#include "ncpaddr.h" 6831690Sbrian#include "ipcp.h" 6936285Sbrian#include "filter.h" 7036285Sbrian#include "descriptor.h" 7136285Sbrian#include "mp.h" 7243313Sbrian#ifndef NORADIUS 7343313Sbrian#include "radius.h" 7443313Sbrian#endif 7581634Sbrian#include "ipv6cp.h" 7681634Sbrian#include "ncp.h" 7736285Sbrian#include "bundle.h" 7830715Sbrian#include "route.h" 7936285Sbrian#include "prompt.h" 8040561Sbrian#include "iface.h" 8175212Sbrian#include "id.h" 826059Samurai 8358032Sbrian 846059Samuraistatic void 8536285Sbrianp_sockaddr(struct prompt *prompt, struct sockaddr *phost, 8636285Sbrian struct sockaddr *pmask, int width) 876059Samurai{ 8881634Sbrian struct ncprange range; 8931343Sbrian char buf[29]; 9031176Sbrian struct sockaddr_dl *dl = (struct sockaddr_dl *)phost; 916059Samurai 9258031Sbrian if (log_IsKept(LogDEBUG)) { 9358031Sbrian char tmp[50]; 9458031Sbrian 9558031Sbrian log_Printf(LogDEBUG, "Found the following sockaddr:\n"); 9658031Sbrian log_Printf(LogDEBUG, " Family %d, len %d\n", 9758031Sbrian (int)phost->sa_family, (int)phost->sa_len); 9858032Sbrian inet_ntop(phost->sa_family, phost->sa_data, tmp, sizeof tmp); 9958031Sbrian log_Printf(LogDEBUG, " Addr %s\n", tmp); 10058031Sbrian if (pmask) { 10158032Sbrian inet_ntop(pmask->sa_family, pmask->sa_data, tmp, sizeof tmp); 10258031Sbrian log_Printf(LogDEBUG, " Mask %s\n", tmp); 10358031Sbrian } 10458031Sbrian } 10558031Sbrian 10631176Sbrian switch (phost->sa_family) { 10731176Sbrian case AF_INET: 10881634Sbrian#ifndef NOINET6 10981634Sbrian case AF_INET6: 11081634Sbrian#endif 11181634Sbrian ncprange_setsa(&range, phost, pmask); 11281634Sbrian if (ncprange_isdefault(&range)) 11381634Sbrian prompt_Printf(prompt, "%-*s ", width - 1, "default"); 11481634Sbrian else 11581634Sbrian prompt_Printf(prompt, "%-*s ", width - 1, ncprange_ntoa(&range)); 11681634Sbrian return; 11731176Sbrian 11831176Sbrian case AF_LINK: 11931541Sbrian if (dl->sdl_nlen) 12031541Sbrian snprintf(buf, sizeof buf, "%.*s", dl->sdl_nlen, dl->sdl_data); 12134536Sbrian else if (dl->sdl_alen) { 12234536Sbrian if (dl->sdl_type == IFT_ETHER) { 12331962Sbrian if (dl->sdl_alen < sizeof buf / 3) { 12431541Sbrian int f; 12531541Sbrian u_char *MAC; 12631541Sbrian 12731541Sbrian MAC = (u_char *)dl->sdl_data + dl->sdl_nlen; 12831541Sbrian for (f = 0; f < dl->sdl_alen; f++) 12931541Sbrian sprintf(buf+f*3, "%02x:", MAC[f]); 13031541Sbrian buf[f*3-1] = '\0'; 13131541Sbrian } else 13275212Sbrian strcpy(buf, "??:??:??:??:??:??"); 13334536Sbrian } else 13431541Sbrian sprintf(buf, "<IFT type %d>", dl->sdl_type); 13536285Sbrian } else if (dl->sdl_slen) 13631541Sbrian sprintf(buf, "<slen %d?>", dl->sdl_slen); 13731541Sbrian else 13831176Sbrian sprintf(buf, "link#%d", dl->sdl_index); 13931176Sbrian break; 14031176Sbrian 14131176Sbrian default: 14231541Sbrian sprintf(buf, "<AF type %d>", phost->sa_family); 14331176Sbrian break; 14426516Sbrian } 14531176Sbrian 14636285Sbrian prompt_Printf(prompt, "%-*s ", width-1, buf); 1476059Samurai} 1486059Samurai 14932663Sbrianstatic struct bits { 15037189Sbrian u_int32_t b_mask; 15128679Sbrian char b_val; 15231176Sbrian} bits[] = { 15331176Sbrian { RTF_UP, 'U' }, 15431176Sbrian { RTF_GATEWAY, 'G' }, 15531176Sbrian { RTF_HOST, 'H' }, 15631176Sbrian { RTF_REJECT, 'R' }, 15731176Sbrian { RTF_DYNAMIC, 'D' }, 15831176Sbrian { RTF_MODIFIED, 'M' }, 15931176Sbrian { RTF_DONE, 'd' }, 160186119Sqingli { RTF_XRESOLVE, 'X' }, 16131176Sbrian { RTF_STATIC, 'S' }, 16231176Sbrian { RTF_PROTO1, '1' }, 16331176Sbrian { RTF_PROTO2, '2' }, 16431176Sbrian { RTF_BLACKHOLE, 'B' }, 165186119Sqingli#ifdef RTF_LLINFO 166186119Sqingli { RTF_LLINFO, 'L' }, 167186119Sqingli#endif 168186119Sqingli#ifdef RTF_CLONING 169186119Sqingli { RTF_CLONING, 'C' }, 170186119Sqingli#endif 17131739Sbrian#ifdef RTF_PROTO3 17231176Sbrian { RTF_PROTO3, '3' }, 17331739Sbrian#endif 17431739Sbrian#ifdef RTF_BROADCAST 17531176Sbrian { RTF_BROADCAST, 'b' }, 17631176Sbrian#endif 17731176Sbrian { 0, '\0' } 1786059Samurai}; 1796059Samurai 1806059Samuraistatic void 181134789Sbrianp_flags(struct prompt *prompt, u_int32_t f, unsigned max) 1826059Samurai{ 18336285Sbrian char name[33], *flags; 18436285Sbrian register struct bits *p = bits; 1856059Samurai 18636285Sbrian if (max > sizeof name - 1) 18736285Sbrian max = sizeof name - 1; 18831827Sbrian 189134789Sbrian for (flags = name; p->b_mask && flags - name < (int)max; p++) 19036285Sbrian if (p->b_mask & f) 19136285Sbrian *flags++ = p->b_val; 19236285Sbrian *flags = '\0'; 193139978Sbrian prompt_Printf(prompt, "%-*.*s", (int)max, (int)max, name); 1946059Samurai} 1956059Samurai 19696582Sbrianstatic int route_nifs = -1; 19796582Sbrian 19832616Sbrianconst char * 19931176SbrianIndex2Nam(int idx) 20031176Sbrian{ 20137010Sbrian /* 20237010Sbrian * XXX: Maybe we should select() on the routing socket so that we can 20337010Sbrian * notice interfaces that come & go (PCCARD support). 20437010Sbrian * Or we could even support a signal that resets these so that 20537010Sbrian * the PCCARD insert/remove events can signal ppp. 20637010Sbrian */ 20737010Sbrian static char **ifs; /* Figure these out once */ 20896582Sbrian static int debug_done; /* Debug once */ 20931176Sbrian 21096582Sbrian if (idx > route_nifs || (idx > 0 && ifs[idx-1] == NULL)) { 21132425Sbrian int mib[6], have, had; 21232021Sbrian size_t needed; 21331176Sbrian char *buf, *ptr, *end; 21431176Sbrian struct sockaddr_dl *dl; 21531176Sbrian struct if_msghdr *ifm; 21631176Sbrian 21750427Sbrian if (ifs) { 21850427Sbrian free(ifs); 21950427Sbrian ifs = NULL; 22096582Sbrian route_nifs = 0; 22150427Sbrian } 22250427Sbrian debug_done = 0; 22350427Sbrian 22431176Sbrian mib[0] = CTL_NET; 22531176Sbrian mib[1] = PF_ROUTE; 22631176Sbrian mib[2] = 0; 22731176Sbrian mib[3] = 0; 22831176Sbrian mib[4] = NET_RT_IFLIST; 22931176Sbrian mib[5] = 0; 23031176Sbrian 23131176Sbrian if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 23237019Sbrian log_Printf(LogERROR, "Index2Nam: sysctl: estimate: %s\n", 23337019Sbrian strerror(errno)); 23458034Sbrian return NumStr(idx, NULL, 0); 23531176Sbrian } 23631176Sbrian if ((buf = malloc(needed)) == NULL) 23758034Sbrian return NumStr(idx, NULL, 0); 23831176Sbrian if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 23931176Sbrian free(buf); 24058034Sbrian return NumStr(idx, NULL, 0); 24131176Sbrian } 24231176Sbrian end = buf + needed; 24331176Sbrian 24432425Sbrian have = 0; 24531354Sbrian for (ptr = buf; ptr < end; ptr += ifm->ifm_msglen) { 24631176Sbrian ifm = (struct if_msghdr *)ptr; 24758032Sbrian if (ifm->ifm_type != RTM_IFINFO) 24858035Sbrian continue; 24931176Sbrian dl = (struct sockaddr_dl *)(ifm + 1); 25032425Sbrian if (ifm->ifm_index > 0) { 25132425Sbrian if (ifm->ifm_index > have) { 25238381Sbrian char **newifs; 25338381Sbrian 25432425Sbrian had = have; 25532425Sbrian have = ifm->ifm_index + 5; 25632425Sbrian if (had) 25738381Sbrian newifs = (char **)realloc(ifs, sizeof(char *) * have); 25832425Sbrian else 25938381Sbrian newifs = (char **)malloc(sizeof(char *) * have); 26038381Sbrian if (!newifs) { 26136285Sbrian log_Printf(LogDEBUG, "Index2Nam: %s\n", strerror(errno)); 26296582Sbrian route_nifs = 0; 26350427Sbrian if (ifs) { 26438381Sbrian free(ifs); 26550427Sbrian ifs = NULL; 26650427Sbrian } 26750427Sbrian free(buf); 26858034Sbrian return NumStr(idx, NULL, 0); 26932425Sbrian } 27038381Sbrian ifs = newifs; 27132425Sbrian memset(ifs + had, '\0', sizeof(char *) * (have - had)); 27232425Sbrian } 27332425Sbrian if (ifs[ifm->ifm_index-1] == NULL) { 27432425Sbrian ifs[ifm->ifm_index-1] = (char *)malloc(dl->sdl_nlen+1); 275136375Sbrian if (ifs[ifm->ifm_index-1] == NULL) 276136375Sbrian log_Printf(LogDEBUG, "Skipping interface %d: Out of memory\n", 277136375Sbrian ifm->ifm_index); 278136375Sbrian else { 279136375Sbrian memcpy(ifs[ifm->ifm_index-1], dl->sdl_data, dl->sdl_nlen); 280136375Sbrian ifs[ifm->ifm_index-1][dl->sdl_nlen] = '\0'; 281136375Sbrian if (route_nifs < ifm->ifm_index) 282136375Sbrian route_nifs = ifm->ifm_index; 283136375Sbrian } 28432425Sbrian } 28536285Sbrian } else if (log_IsKept(LogDEBUG)) 28636285Sbrian log_Printf(LogDEBUG, "Skipping out-of-range interface %d!\n", 28731354Sbrian ifm->ifm_index); 28831176Sbrian } 28931176Sbrian free(buf); 29031176Sbrian } 29131176Sbrian 29236285Sbrian if (log_IsKept(LogDEBUG) && !debug_done) { 29331354Sbrian int f; 29431354Sbrian 29536285Sbrian log_Printf(LogDEBUG, "Found the following interfaces:\n"); 29696582Sbrian for (f = 0; f < route_nifs; f++) 29732425Sbrian if (ifs[f] != NULL) 29836285Sbrian log_Printf(LogDEBUG, " Index %d, name \"%s\"\n", f+1, ifs[f]); 29931354Sbrian debug_done = 1; 30031354Sbrian } 30131354Sbrian 30296582Sbrian if (idx < 1 || idx > route_nifs || ifs[idx-1] == NULL) 30358034Sbrian return NumStr(idx, NULL, 0); 30431354Sbrian 30531354Sbrian return ifs[idx-1]; 30631176Sbrian} 30731176Sbrian 30858032Sbrianvoid 30958032Sbrianroute_ParseHdr(struct rt_msghdr *rtm, struct sockaddr *sa[RTAX_MAX]) 31058032Sbrian{ 31158032Sbrian char *wp; 31258032Sbrian int rtax; 31358032Sbrian 31458032Sbrian wp = (char *)(rtm + 1); 31558032Sbrian 31658032Sbrian for (rtax = 0; rtax < RTAX_MAX; rtax++) 31758032Sbrian if (rtm->rtm_addrs & (1 << rtax)) { 31858032Sbrian sa[rtax] = (struct sockaddr *)wp; 31958032Sbrian wp += ROUNDUP(sa[rtax]->sa_len); 32093463Sbrian if (sa[rtax]->sa_family == 0) 32186832Sbrian sa[rtax] = NULL; /* ??? */ 32258032Sbrian } else 32358032Sbrian sa[rtax] = NULL; 32458032Sbrian} 32558032Sbrian 3266059Samuraiint 32736285Sbrianroute_Show(struct cmdargs const *arg) 3286059Samurai{ 3296059Samurai struct rt_msghdr *rtm; 33058032Sbrian struct sockaddr *sa[RTAX_MAX]; 33158032Sbrian char *sp, *ep, *cp; 33232021Sbrian size_t needed; 3336735Samurai int mib[6]; 3346059Samurai 3356059Samurai mib[0] = CTL_NET; 3366059Samurai mib[1] = PF_ROUTE; 3376735Samurai mib[2] = 0; 3386735Samurai mib[3] = 0; 3396059Samurai mib[4] = NET_RT_DUMP; 3406735Samurai mib[5] = 0; 3416735Samurai if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 34236285Sbrian log_Printf(LogERROR, "route_Show: sysctl: estimate: %s\n", strerror(errno)); 34328679Sbrian return (1); 3446735Samurai } 3456059Samurai sp = malloc(needed); 3466059Samurai if (sp == NULL) 34728679Sbrian return (1); 3486735Samurai if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) { 34936285Sbrian log_Printf(LogERROR, "route_Show: sysctl: getroute: %s\n", strerror(errno)); 35018885Sjkh free(sp); 35128679Sbrian return (1); 3526735Samurai } 3536059Samurai ep = sp + needed; 3546059Samurai 35536285Sbrian prompt_Printf(arg->prompt, "%-20s%-20sFlags Netif\n", 35636285Sbrian "Destination", "Gateway"); 3576059Samurai for (cp = sp; cp < ep; cp += rtm->rtm_msglen) { 35858032Sbrian rtm = (struct rt_msghdr *)cp; 35931176Sbrian 36058032Sbrian route_ParseHdr(rtm, sa); 36158031Sbrian 36258032Sbrian if (sa[RTAX_DST] && sa[RTAX_GATEWAY]) { 36358032Sbrian p_sockaddr(arg->prompt, sa[RTAX_DST], sa[RTAX_NETMASK], 20); 36458032Sbrian p_sockaddr(arg->prompt, sa[RTAX_GATEWAY], NULL, 20); 36531176Sbrian 36658031Sbrian p_flags(arg->prompt, rtm->rtm_flags, 6); 36758031Sbrian prompt_Printf(arg->prompt, " %s\n", Index2Nam(rtm->rtm_index)); 36858031Sbrian } else 36958031Sbrian prompt_Printf(arg->prompt, "<can't parse routing entry>\n"); 3706059Samurai } 37118885Sjkh free(sp); 37226516Sbrian return 0; 3736059Samurai} 3746059Samurai 3756059Samurai/* 3766059Samurai * Delete routes associated with our interface 3776059Samurai */ 3786059Samuraivoid 37936285Sbrianroute_IfDelete(struct bundle *bundle, int all) 3806059Samurai{ 3816059Samurai struct rt_msghdr *rtm; 38258032Sbrian struct sockaddr *sa[RTAX_MAX]; 38381634Sbrian struct ncprange range; 38432021Sbrian int pass; 38532021Sbrian size_t needed; 3866059Samurai char *sp, *cp, *ep; 3876735Samurai int mib[6]; 3886059Samurai 38940561Sbrian log_Printf(LogDEBUG, "route_IfDelete (%d)\n", bundle->iface->index); 39026516Sbrian 3916059Samurai mib[0] = CTL_NET; 3926059Samurai mib[1] = PF_ROUTE; 3936735Samurai mib[2] = 0; 3946735Samurai mib[3] = 0; 3956059Samurai mib[4] = NET_RT_DUMP; 3966735Samurai mib[5] = 0; 3976735Samurai if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 39836285Sbrian log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n", 39975212Sbrian strerror(errno)); 4006735Samurai return; 4016735Samurai } 4026059Samurai 4036059Samurai sp = malloc(needed); 4046059Samurai if (sp == NULL) 4056059Samurai return; 4066059Samurai 4076735Samurai if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) { 40836285Sbrian log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n", 40975212Sbrian strerror(errno)); 4106059Samurai free(sp); 4116059Samurai return; 4126059Samurai } 4136059Samurai ep = sp + needed; 4146059Samurai 41531739Sbrian for (pass = 0; pass < 2; pass++) { 41631739Sbrian /* 41731739Sbrian * We do 2 passes. The first deletes all cloned routes. The second 41858032Sbrian * deletes all non-cloned routes. This is done to avoid 41931739Sbrian * potential errors from trying to delete route X after route Y where 42036285Sbrian * route X was cloned from route Y (and is no longer there 'cos it 42136285Sbrian * may have gone with route Y). 42231739Sbrian */ 423263203Sglebius if (pass == 0) 42431739Sbrian /* So we can't tell ! */ 42531739Sbrian continue; 42631739Sbrian for (cp = sp; cp < ep; cp += rtm->rtm_msglen) { 42758032Sbrian rtm = (struct rt_msghdr *)cp; 42858032Sbrian route_ParseHdr(rtm, sa); 42981634Sbrian if (rtm->rtm_index == bundle->iface->index && 43081634Sbrian sa[RTAX_DST] && sa[RTAX_GATEWAY] && 43181634Sbrian (sa[RTAX_DST]->sa_family == AF_INET 43281634Sbrian#ifndef NOINET6 43381634Sbrian || sa[RTAX_DST]->sa_family == AF_INET6 43481634Sbrian#endif 43581634Sbrian ) && 43681634Sbrian (all || (rtm->rtm_flags & RTF_GATEWAY))) { 43781634Sbrian if (log_IsKept(LogDEBUG)) { 43881634Sbrian char gwstr[41]; 43981634Sbrian struct ncpaddr gw; 44081634Sbrian ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]); 44181634Sbrian ncpaddr_setsa(&gw, sa[RTAX_GATEWAY]); 44281634Sbrian snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(&gw)); 44381634Sbrian log_Printf(LogDEBUG, "Found %s %s\n", ncprange_ntoa(&range), gwstr); 44481634Sbrian } 44581634Sbrian if (sa[RTAX_GATEWAY]->sa_family == AF_INET || 44681634Sbrian#ifndef NOINET6 44781634Sbrian sa[RTAX_GATEWAY]->sa_family == AF_INET6 || 44881634Sbrian#endif 44981634Sbrian sa[RTAX_GATEWAY]->sa_family == AF_LINK) { 450263203Sglebius if (pass == 1) { 45181634Sbrian ncprange_setsa(&range, sa[RTAX_DST], sa[RTAX_NETMASK]); 45281634Sbrian rt_Set(bundle, RTM_DELETE, &range, NULL, 0, 0); 45331739Sbrian } else 45481634Sbrian log_Printf(LogDEBUG, "route_IfDelete: Skip it (pass %d)\n", pass); 45581634Sbrian } else 45681634Sbrian log_Printf(LogDEBUG, 45781634Sbrian "route_IfDelete: Can't remove routes for family %d\n", 45881634Sbrian sa[RTAX_GATEWAY]->sa_family); 45931739Sbrian } 4606059Samurai } 4616059Samurai } 4626059Samurai free(sp); 4636059Samurai} 4646059Samurai 46575212Sbrian 46675212Sbrian/* 46775212Sbrian * Update the MTU on all routes for the given interface 46875212Sbrian */ 46975212Sbrianvoid 47075212Sbrianroute_UpdateMTU(struct bundle *bundle) 47175212Sbrian{ 47275212Sbrian struct rt_msghdr *rtm; 47375212Sbrian struct sockaddr *sa[RTAX_MAX]; 47481634Sbrian struct ncprange dst; 47575212Sbrian size_t needed; 47675212Sbrian char *sp, *cp, *ep; 47775212Sbrian int mib[6]; 47875212Sbrian 47975212Sbrian log_Printf(LogDEBUG, "route_UpdateMTU (%d)\n", bundle->iface->index); 48075212Sbrian 48175212Sbrian mib[0] = CTL_NET; 48275212Sbrian mib[1] = PF_ROUTE; 48375212Sbrian mib[2] = 0; 48475212Sbrian mib[3] = 0; 48575212Sbrian mib[4] = NET_RT_DUMP; 48675212Sbrian mib[5] = 0; 48775212Sbrian if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 48875212Sbrian log_Printf(LogERROR, "route_IfDelete: sysctl: estimate: %s\n", 48975212Sbrian strerror(errno)); 49075212Sbrian return; 49175212Sbrian } 49275212Sbrian 49375212Sbrian sp = malloc(needed); 49475212Sbrian if (sp == NULL) 49575212Sbrian return; 49675212Sbrian 49775212Sbrian if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) { 49875212Sbrian log_Printf(LogERROR, "route_IfDelete: sysctl: getroute: %s\n", 49975212Sbrian strerror(errno)); 50075212Sbrian free(sp); 50175212Sbrian return; 50275212Sbrian } 50375212Sbrian ep = sp + needed; 50475212Sbrian 50575212Sbrian for (cp = sp; cp < ep; cp += rtm->rtm_msglen) { 50675212Sbrian rtm = (struct rt_msghdr *)cp; 50775212Sbrian route_ParseHdr(rtm, sa); 50881886Sbrian if (sa[RTAX_DST] && (sa[RTAX_DST]->sa_family == AF_INET 50981739Sbrian#ifndef NOINET6 51081886Sbrian || sa[RTAX_DST]->sa_family == AF_INET6 51181739Sbrian#endif 51281739Sbrian ) && 51381739Sbrian sa[RTAX_GATEWAY] && rtm->rtm_index == bundle->iface->index) { 51481739Sbrian if (log_IsKept(LogTCPIP)) { 51581739Sbrian ncprange_setsa(&dst, sa[RTAX_DST], sa[RTAX_NETMASK]); 51681739Sbrian log_Printf(LogTCPIP, "route_UpdateMTU: Netif: %d (%s), dst %s," 517134789Sbrian " mtu %lu\n", rtm->rtm_index, Index2Nam(rtm->rtm_index), 51881739Sbrian ncprange_ntoa(&dst), bundle->iface->mtu); 51981739Sbrian } 520191316Sbz rt_Update(bundle, sa[RTAX_DST], sa[RTAX_GATEWAY], sa[RTAX_NETMASK], 521191316Sbz sa[RTAX_IFP], sa[RTAX_IFA]); 52275212Sbrian } 52375212Sbrian } 52475212Sbrian 52575212Sbrian free(sp); 52675212Sbrian} 52775212Sbrian 5286059Samuraiint 52928679SbrianGetIfIndex(char *name) 5306059Samurai{ 53131176Sbrian int idx; 53228679Sbrian 53331354Sbrian idx = 1; 53496582Sbrian while (route_nifs == -1 || idx < route_nifs) 53596582Sbrian if (strcmp(Index2Nam(idx), name) == 0) 53636285Sbrian return idx; 53731176Sbrian else 53831176Sbrian idx++; 53931176Sbrian return -1; 5406059Samurai} 54131690Sbrian 54236285Sbrianvoid 54336285Sbrianroute_Change(struct bundle *bundle, struct sticky_route *r, 54481634Sbrian const struct ncpaddr *me, const struct ncpaddr *peer) 54531690Sbrian{ 54681634Sbrian struct ncpaddr dst; 54731690Sbrian 54836285Sbrian for (; r; r = r->next) { 54981634Sbrian ncprange_getaddr(&r->dst, &dst); 55081634Sbrian if (ncpaddr_family(me) == AF_INET) { 55181634Sbrian if ((r->type & ROUTE_DSTMYADDR) && !ncpaddr_equal(&dst, me)) { 55281634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 55381634Sbrian ncprange_sethost(&r->dst, me); 55481634Sbrian if (r->type & ROUTE_GWHISADDR) 55581634Sbrian ncpaddr_copy(&r->gw, peer); 55681634Sbrian } else if ((r->type & ROUTE_DSTHISADDR) && !ncpaddr_equal(&dst, peer)) { 55781634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 55881634Sbrian ncprange_sethost(&r->dst, peer); 55981634Sbrian if (r->type & ROUTE_GWHISADDR) 56081634Sbrian ncpaddr_copy(&r->gw, peer); 56181634Sbrian } else if ((r->type & ROUTE_DSTDNS0) && !ncpaddr_equal(&dst, peer)) { 56281634Sbrian if (bundle->ncp.ipcp.ns.dns[0].s_addr == INADDR_NONE) 56381634Sbrian continue; 56481634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 56581634Sbrian if (r->type & ROUTE_GWHISADDR) 56681634Sbrian ncpaddr_copy(&r->gw, peer); 56781634Sbrian } else if ((r->type & ROUTE_DSTDNS1) && !ncpaddr_equal(&dst, peer)) { 56881634Sbrian if (bundle->ncp.ipcp.ns.dns[1].s_addr == INADDR_NONE) 56981634Sbrian continue; 57081634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 57181634Sbrian if (r->type & ROUTE_GWHISADDR) 57281634Sbrian ncpaddr_copy(&r->gw, peer); 57381634Sbrian } else if ((r->type & ROUTE_GWHISADDR) && !ncpaddr_equal(&r->gw, peer)) 57481634Sbrian ncpaddr_copy(&r->gw, peer); 57581634Sbrian#ifndef NOINET6 57681634Sbrian } else if (ncpaddr_family(me) == AF_INET6) { 57781634Sbrian if ((r->type & ROUTE_DSTMYADDR6) && !ncpaddr_equal(&dst, me)) { 57881634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 57981634Sbrian ncprange_sethost(&r->dst, me); 58081634Sbrian if (r->type & ROUTE_GWHISADDR) 58181634Sbrian ncpaddr_copy(&r->gw, peer); 58281634Sbrian } else if ((r->type & ROUTE_DSTHISADDR6) && !ncpaddr_equal(&dst, peer)) { 58381634Sbrian rt_Set(bundle, RTM_DELETE, &r->dst, NULL, 1, 0); 58481634Sbrian ncprange_sethost(&r->dst, peer); 58581634Sbrian if (r->type & ROUTE_GWHISADDR) 58681634Sbrian ncpaddr_copy(&r->gw, peer); 58781634Sbrian } else if ((r->type & ROUTE_GWHISADDR6) && !ncpaddr_equal(&r->gw, peer)) 58881634Sbrian ncpaddr_copy(&r->gw, peer); 58981634Sbrian#endif 59081634Sbrian } 59181634Sbrian rt_Set(bundle, RTM_ADD, &r->dst, &r->gw, 1, 0); 59236285Sbrian } 59336285Sbrian} 59436285Sbrian 59536285Sbrianvoid 59681634Sbrianroute_Add(struct sticky_route **rp, int type, const struct ncprange *dst, 59781634Sbrian const struct ncpaddr *gw) 59836285Sbrian{ 59943313Sbrian struct sticky_route *r; 60043313Sbrian int dsttype = type & ROUTE_DSTANY; 60136285Sbrian 60243313Sbrian r = NULL; 60343313Sbrian while (*rp) { 60443313Sbrian if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) || 60581634Sbrian (!dsttype && ncprange_equal(&(*rp)->dst, dst))) { 60643313Sbrian /* Oops, we already have this route - unlink it */ 60743313Sbrian free(r); /* impossible really */ 60843313Sbrian r = *rp; 60943313Sbrian *rp = r->next; 61043313Sbrian } else 61143313Sbrian rp = &(*rp)->next; 61243313Sbrian } 61336285Sbrian 614136375Sbrian if (r == NULL) { 61543313Sbrian r = (struct sticky_route *)malloc(sizeof(struct sticky_route)); 616136375Sbrian if (r == NULL) { 617136375Sbrian log_Printf(LogERROR, "route_Add: Out of memory!\n"); 618136375Sbrian return; 619136375Sbrian } 620136375Sbrian } 62143313Sbrian r->type = type; 62243313Sbrian r->next = NULL; 62381634Sbrian ncprange_copy(&r->dst, dst); 62481634Sbrian ncpaddr_copy(&r->gw, gw); 62581692Sbrian *rp = r; 62636285Sbrian} 62736285Sbrian 62836285Sbrianvoid 62981634Sbrianroute_Delete(struct sticky_route **rp, int type, const struct ncprange *dst) 63036285Sbrian{ 63136285Sbrian struct sticky_route *r; 63236285Sbrian int dsttype = type & ROUTE_DSTANY; 63336285Sbrian 63436285Sbrian for (; *rp; rp = &(*rp)->next) { 63536285Sbrian if ((dsttype && dsttype == ((*rp)->type & ROUTE_DSTANY)) || 63681634Sbrian (!dsttype && ncprange_equal(dst, &(*rp)->dst))) { 63736285Sbrian r = *rp; 63836285Sbrian *rp = r->next; 63936285Sbrian free(r); 64031690Sbrian break; 64131690Sbrian } 64231690Sbrian } 64336285Sbrian} 64431690Sbrian 64536285Sbrianvoid 64636285Sbrianroute_DeleteAll(struct sticky_route **rp) 64736285Sbrian{ 64836285Sbrian struct sticky_route *r, *rn; 64936285Sbrian 65036285Sbrian for (r = *rp; r; r = rn) { 65136285Sbrian rn = r->next; 65236285Sbrian free(r); 65331690Sbrian } 65436285Sbrian *rp = NULL; 65536285Sbrian} 65631690Sbrian 65736285Sbrianvoid 65843313Sbrianroute_ShowSticky(struct prompt *p, struct sticky_route *r, const char *tag, 65943313Sbrian int indent) 66036285Sbrian{ 66143313Sbrian int tlen = strlen(tag); 66236285Sbrian 66343313Sbrian if (tlen + 2 > indent) 66443313Sbrian prompt_Printf(p, "%s:\n%*s", tag, indent, ""); 66543313Sbrian else 66643313Sbrian prompt_Printf(p, "%s:%*s", tag, indent - tlen - 1, ""); 66743313Sbrian 66836285Sbrian for (; r; r = r->next) { 66943313Sbrian prompt_Printf(p, "%*sadd ", tlen ? 0 : indent, ""); 67043313Sbrian tlen = 0; 67136285Sbrian if (r->type & ROUTE_DSTMYADDR) 67236285Sbrian prompt_Printf(p, "MYADDR"); 67381634Sbrian else if (r->type & ROUTE_DSTMYADDR6) 67481634Sbrian prompt_Printf(p, "MYADDR6"); 67536285Sbrian else if (r->type & ROUTE_DSTHISADDR) 67636285Sbrian prompt_Printf(p, "HISADDR"); 67781634Sbrian else if (r->type & ROUTE_DSTHISADDR6) 67881634Sbrian prompt_Printf(p, "HISADDR6"); 67958044Sbrian else if (r->type & ROUTE_DSTDNS0) 68058044Sbrian prompt_Printf(p, "DNS0"); 68158044Sbrian else if (r->type & ROUTE_DSTDNS1) 68258044Sbrian prompt_Printf(p, "DNS1"); 68381634Sbrian else if (ncprange_isdefault(&r->dst)) 68481634Sbrian prompt_Printf(p, "default"); 68536285Sbrian else 68681634Sbrian prompt_Printf(p, "%s", ncprange_ntoa(&r->dst)); 68736285Sbrian 68836285Sbrian if (r->type & ROUTE_GWHISADDR) 68981634Sbrian prompt_Printf(p, " HISADDR\n"); 69081634Sbrian else if (r->type & ROUTE_GWHISADDR6) 69181634Sbrian prompt_Printf(p, " HISADDR6\n"); 69236285Sbrian else 69381634Sbrian prompt_Printf(p, " %s\n", ncpaddr_ntoa(&r->gw)); 69436285Sbrian } 69531690Sbrian} 69675212Sbrian 69775212Sbrianstruct rtmsg { 69875212Sbrian struct rt_msghdr m_rtm; 69981634Sbrian char m_space[256]; 70075212Sbrian}; 70175212Sbrian 70286833Sbrianstatic size_t 70386833Sbrianmemcpy_roundup(char *cp, const void *data, size_t len) 70486833Sbrian{ 70586833Sbrian size_t padlen; 70686833Sbrian 70786833Sbrian padlen = ROUNDUP(len); 70886833Sbrian memcpy(cp, data, len); 70986833Sbrian if (padlen > len) 71086833Sbrian memset(cp + len, '\0', padlen - len); 71186833Sbrian 71286833Sbrian return padlen; 71386833Sbrian} 71486833Sbrian 715112616Sume#if defined(__KAME__) && !defined(NOINET6) 716112616Sumestatic void 717112616Sumeadd_scope(struct sockaddr *sa, int ifindex) 718112616Sume{ 719112616Sume struct sockaddr_in6 *sa6; 720112616Sume 721112616Sume if (sa->sa_family != AF_INET6) 722112616Sume return; 723112616Sume sa6 = (struct sockaddr_in6 *)sa; 724112616Sume if (!IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) && 725112616Sume !IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr)) 726112616Sume return; 727112616Sume if (*(u_int16_t *)&sa6->sin6_addr.s6_addr[2] != 0) 728112616Sume return; 729112616Sume *(u_int16_t *)&sa6->sin6_addr.s6_addr[2] = htons(ifindex); 730112616Sume} 731112616Sume#endif 732112616Sume 73375212Sbrianint 73481634Sbrianrt_Set(struct bundle *bundle, int cmd, const struct ncprange *dst, 73581634Sbrian const struct ncpaddr *gw, int bang, int quiet) 73675212Sbrian{ 73775212Sbrian struct rtmsg rtmes; 73886825Sbrian int s, nb, wb; 73975212Sbrian char *cp; 74075212Sbrian const char *cmdstr; 74181634Sbrian struct sockaddr_storage sadst, samask, sagw; 74275212Sbrian int result = 1; 74375212Sbrian 74475212Sbrian if (bang) 74575212Sbrian cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!"); 74675212Sbrian else 74775212Sbrian cmdstr = (cmd == RTM_ADD ? "Add" : "Delete"); 74889422Sbrian s = ID0socket(PF_ROUTE, SOCK_RAW, 0); 74975212Sbrian if (s < 0) { 75075212Sbrian log_Printf(LogERROR, "rt_Set: socket(): %s\n", strerror(errno)); 75175212Sbrian return result; 75275212Sbrian } 75375212Sbrian memset(&rtmes, '\0', sizeof rtmes); 75475212Sbrian rtmes.m_rtm.rtm_version = RTM_VERSION; 75575212Sbrian rtmes.m_rtm.rtm_type = cmd; 75675212Sbrian rtmes.m_rtm.rtm_addrs = RTA_DST; 75775212Sbrian rtmes.m_rtm.rtm_seq = ++bundle->routing_seq; 75875212Sbrian rtmes.m_rtm.rtm_pid = getpid(); 75975212Sbrian rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC; 76075212Sbrian 76175212Sbrian if (cmd == RTM_ADD) { 76281634Sbrian if (bundle->ncp.cfg.sendpipe > 0) { 76381634Sbrian rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe; 76475212Sbrian rtmes.m_rtm.rtm_inits |= RTV_SPIPE; 76575212Sbrian } 76681634Sbrian if (bundle->ncp.cfg.recvpipe > 0) { 76781634Sbrian rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe; 76875212Sbrian rtmes.m_rtm.rtm_inits |= RTV_RPIPE; 76975212Sbrian } 77075212Sbrian } 77175212Sbrian 77281634Sbrian ncprange_getsa(dst, &sadst, &samask); 773112616Sume#if defined(__KAME__) && !defined(NOINET6) 774112616Sume add_scope((struct sockaddr *)&sadst, bundle->iface->index); 775112616Sume#endif 77675212Sbrian 77775212Sbrian cp = rtmes.m_space; 77886833Sbrian cp += memcpy_roundup(cp, &sadst, sadst.ss_len); 77975212Sbrian if (cmd == RTM_ADD) { 78081634Sbrian if (gw == NULL) { 78181634Sbrian log_Printf(LogERROR, "rt_Set: Program error\n"); 78281634Sbrian close(s); 78381634Sbrian return result; 78481634Sbrian } 78581634Sbrian ncpaddr_getsa(gw, &sagw); 786112616Sume#if defined(__KAME__) && !defined(NOINET6) 787112616Sume add_scope((struct sockaddr *)&sagw, bundle->iface->index); 788112616Sume#endif 78981634Sbrian if (ncpaddr_isdefault(gw)) { 79081634Sbrian if (!quiet) 79175212Sbrian log_Printf(LogERROR, "rt_Set: Cannot add a route with" 79283031Sbrian " gateway 0.0.0.0\n"); 79375212Sbrian close(s); 79475212Sbrian return result; 79575212Sbrian } else { 79686833Sbrian cp += memcpy_roundup(cp, &sagw, sagw.ss_len); 79775212Sbrian rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY; 79875212Sbrian } 79975212Sbrian } 80075212Sbrian 80186815Sbrian if (!ncprange_ishost(dst)) { 80286833Sbrian cp += memcpy_roundup(cp, &samask, samask.ss_len); 80375212Sbrian rtmes.m_rtm.rtm_addrs |= RTA_NETMASK; 80475212Sbrian } 80575212Sbrian 80675212Sbrian nb = cp - (char *)&rtmes; 80775212Sbrian rtmes.m_rtm.rtm_msglen = nb; 80875212Sbrian wb = ID0write(s, &rtmes, nb); 80975212Sbrian if (wb < 0) { 81075212Sbrian log_Printf(LogTCPIP, "rt_Set failure:\n"); 81175212Sbrian log_Printf(LogTCPIP, "rt_Set: Cmd = %s\n", cmdstr); 81281634Sbrian log_Printf(LogTCPIP, "rt_Set: Dst = %s\n", ncprange_ntoa(dst)); 81381634Sbrian if (gw != NULL) 81481634Sbrian log_Printf(LogTCPIP, "rt_Set: Gateway = %s\n", ncpaddr_ntoa(gw)); 81575212Sbrianfailed: 81675212Sbrian if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST || 81775212Sbrian (rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST))) { 81875212Sbrian if (!bang) { 81975212Sbrian log_Printf(LogWARN, "Add route failed: %s already exists\n", 82081634Sbrian ncprange_ntoa(dst)); 82175212Sbrian result = 0; /* Don't add to our dynamic list */ 82275212Sbrian } else { 82375212Sbrian rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE; 82475212Sbrian if ((wb = ID0write(s, &rtmes, nb)) < 0) 82575212Sbrian goto failed; 82675212Sbrian } 82775212Sbrian } else if (cmd == RTM_DELETE && 82875212Sbrian (rtmes.m_rtm.rtm_errno == ESRCH || 82975212Sbrian (rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) { 83075212Sbrian if (!bang) 83175212Sbrian log_Printf(LogWARN, "Del route failed: %s: Non-existent\n", 83281634Sbrian ncprange_ntoa(dst)); 83375212Sbrian } else if (rtmes.m_rtm.rtm_errno == 0) { 83481634Sbrian if (!quiet || errno != ENETUNREACH) 83575212Sbrian log_Printf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr, 83681634Sbrian ncprange_ntoa(dst), strerror(errno)); 83775212Sbrian } else 83875212Sbrian log_Printf(LogWARN, "%s route failed: %s: %s\n", 83981634Sbrian cmdstr, ncprange_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno)); 84075212Sbrian } 84175212Sbrian 84281634Sbrian if (log_IsKept(LogDEBUG)) { 84381634Sbrian char gwstr[40]; 84481634Sbrian 84581634Sbrian if (gw) 84681634Sbrian snprintf(gwstr, sizeof gwstr, "%s", ncpaddr_ntoa(gw)); 84781634Sbrian else 84881634Sbrian snprintf(gwstr, sizeof gwstr, "<none>"); 84981634Sbrian log_Printf(LogDEBUG, "wrote %d: cmd = %s, dst = %s, gateway = %s\n", 85081634Sbrian wb, cmdstr, ncprange_ntoa(dst), gwstr); 85181634Sbrian } 85275212Sbrian close(s); 85375212Sbrian 85475212Sbrian return result; 85575212Sbrian} 85675212Sbrian 85775212Sbrianvoid 85881739Sbrianrt_Update(struct bundle *bundle, const struct sockaddr *dst, 859191316Sbz const struct sockaddr *gw, const struct sockaddr *mask, 860191316Sbz const struct sockaddr *ifp, const struct sockaddr *ifa) 86175212Sbrian{ 86281739Sbrian struct ncprange ncpdst; 86375212Sbrian struct rtmsg rtmes; 86481739Sbrian char *p; 86575212Sbrian int s, wb; 86675212Sbrian 86789422Sbrian s = ID0socket(PF_ROUTE, SOCK_RAW, 0); 86875212Sbrian if (s < 0) { 86975212Sbrian log_Printf(LogERROR, "rt_Update: socket(): %s\n", strerror(errno)); 87075212Sbrian return; 87175212Sbrian } 87275212Sbrian 87375212Sbrian memset(&rtmes, '\0', sizeof rtmes); 87475212Sbrian rtmes.m_rtm.rtm_version = RTM_VERSION; 87575212Sbrian rtmes.m_rtm.rtm_type = RTM_CHANGE; 87681934Sbrian rtmes.m_rtm.rtm_addrs = 0; 87775212Sbrian rtmes.m_rtm.rtm_seq = ++bundle->routing_seq; 87875212Sbrian rtmes.m_rtm.rtm_pid = getpid(); 87993421Sbrian rtmes.m_rtm.rtm_flags = RTF_UP | RTF_STATIC; 88075212Sbrian 88181634Sbrian if (bundle->ncp.cfg.sendpipe > 0) { 88281634Sbrian rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.cfg.sendpipe; 88375212Sbrian rtmes.m_rtm.rtm_inits |= RTV_SPIPE; 88475212Sbrian } 88575212Sbrian 88681634Sbrian if (bundle->ncp.cfg.recvpipe > 0) { 88781634Sbrian rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.cfg.recvpipe; 88875212Sbrian rtmes.m_rtm.rtm_inits |= RTV_RPIPE; 88975212Sbrian } 89075212Sbrian 89178410Sbrian rtmes.m_rtm.rtm_rmx.rmx_mtu = bundle->iface->mtu; 89275212Sbrian rtmes.m_rtm.rtm_inits |= RTV_MTU; 89381739Sbrian p = rtmes.m_space; 89475212Sbrian 89581739Sbrian if (dst) { 89681739Sbrian rtmes.m_rtm.rtm_addrs |= RTA_DST; 89786833Sbrian p += memcpy_roundup(p, dst, dst->sa_len); 89881739Sbrian } 89975212Sbrian 900191306Sbz if (gw) { 901191306Sbz rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY; 902191306Sbz p += memcpy_roundup(p, gw, gw->sa_len); 903191306Sbz } 904191306Sbz 90593421Sbrian if (mask) { 90693421Sbrian rtmes.m_rtm.rtm_addrs |= RTA_NETMASK; 90793421Sbrian p += memcpy_roundup(p, mask, mask->sa_len); 90893421Sbrian } 90993421Sbrian 910191316Sbz if (ifa && ifp && ifp->sa_family == AF_LINK) { 911191316Sbz rtmes.m_rtm.rtm_addrs |= RTA_IFP; 912191316Sbz p += memcpy_roundup(p, ifp, ifp->sa_len); 913191316Sbz rtmes.m_rtm.rtm_addrs |= RTA_IFA; 914191316Sbz p += memcpy_roundup(p, ifa, ifa->sa_len); 915191316Sbz } 916191316Sbz 91781739Sbrian rtmes.m_rtm.rtm_msglen = p - (char *)&rtmes; 91875212Sbrian 91975212Sbrian wb = ID0write(s, &rtmes, rtmes.m_rtm.rtm_msglen); 92075212Sbrian if (wb < 0) { 92181739Sbrian ncprange_setsa(&ncpdst, dst, mask); 92281739Sbrian 92375212Sbrian log_Printf(LogTCPIP, "rt_Update failure:\n"); 92481739Sbrian log_Printf(LogTCPIP, "rt_Update: Dst = %s\n", ncprange_ntoa(&ncpdst)); 92575212Sbrian 92675212Sbrian if (rtmes.m_rtm.rtm_errno == 0) 92775212Sbrian log_Printf(LogWARN, "%s: Change route failed: errno: %s\n", 92881739Sbrian ncprange_ntoa(&ncpdst), strerror(errno)); 92975212Sbrian else 93075212Sbrian log_Printf(LogWARN, "%s: Change route failed: %s\n", 93181739Sbrian ncprange_ntoa(&ncpdst), strerror(rtmes.m_rtm.rtm_errno)); 93275212Sbrian } 93375212Sbrian close(s); 93475212Sbrian} 935