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ifmcstat.c (189592) ifmcstat.c (191672)
1/* $KAME: ifmcstat.c,v 1.48 2006/11/15 05:13:59 itojun Exp $ */
2
3/*
4 * Copyright (c) 2007-2009 Bruce Simpson.
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

--- 17 unchanged lines hidden (view full) ---

26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
1/* $KAME: ifmcstat.c,v 1.48 2006/11/15 05:13:59 itojun Exp $ */
2
3/*
4 * Copyright (c) 2007-2009 Bruce Simpson.
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

--- 17 unchanged lines hidden (view full) ---

26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/usr.sbin/ifmcstat/ifmcstat.c 189592 2009-03-09 17:53:05Z bms $");
34__FBSDID("$FreeBSD: head/usr.sbin/ifmcstat/ifmcstat.c 191672 2009-04-29 19:19:13Z bms $");
35
36#include <sys/types.h>
37#include <sys/param.h>
38#include <sys/sysctl.h>
39#include <sys/socket.h>
40#include <sys/queue.h>
41#include <sys/tree.h>
42

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162#endif /* WITH_KVM */
163
164static int ifmcstat_getifmaddrs(void);
165#ifdef INET
166static void in_ifinfo(struct igmp_ifinfo *);
167static const char * inm_mode(u_int mode);
168#endif
169#ifdef INET6
35
36#include <sys/types.h>
37#include <sys/param.h>
38#include <sys/sysctl.h>
39#include <sys/socket.h>
40#include <sys/queue.h>
41#include <sys/tree.h>
42

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162#endif /* WITH_KVM */
163
164static int ifmcstat_getifmaddrs(void);
165#ifdef INET
166static void in_ifinfo(struct igmp_ifinfo *);
167static const char * inm_mode(u_int mode);
168#endif
169#ifdef INET6
170static void in6_ifinfo(struct mld_ifinfo *);
170static const char * inet6_n2a(struct in6_addr *);
171#endif
172int main(int, char **);
173
174static void
175usage()
176{
177

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436 ifmp = TAILQ_NEXT(&ifm, ifma_link);
437 }
438 }
439}
440
441#ifdef INET6
442
443static void
171static const char * inet6_n2a(struct in6_addr *);
172#endif
173int main(int, char **);
174
175static void
176usage()
177{
178

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437 ifmp = TAILQ_NEXT(&ifm, ifma_link);
438 }
439 }
440}
441
442#ifdef INET6
443
444static void
445in6_ifinfo(struct mld_ifinfo *mli)
446{
447
448 printf("\t");
449 switch (mli->mli_version) {
450 case MLD_VERSION_1:
451 case MLD_VERSION_2:
452 printf("mldv%d", mli->mli_version);
453 break;
454 default:
455 printf("mldv?(%d)", mli->mli_version);
456 break;
457 }
458 printb(" flags", mli->mli_flags, "\020\1SILENT");
459 if (mli->mli_version == MLD_VERSION_2) {
460 printf(" rv %u qi %u qri %u uri %u",
461 mli->mli_rv, mli->mli_qi, mli->mli_qri, mli->mli_uri);
462 }
463 if (vflag >= 2) {
464 printf(" v1timer %u v2timer %u", mli->mli_v1_timer,
465 mli->mli_v2_timer);
466 }
467 printf("\n");
468}
469
470static void
444if6_addrlist(struct ifaddr *ifap)
445{
471if6_addrlist(struct ifaddr *ifap)
472{
473 struct ifnet ifnet;
446 struct ifaddr ifa;
447 struct sockaddr sa;
448 struct in6_ifaddr if6a;
449 struct ifaddr *ifap0;
450
451 if (af && af != AF_INET6)
452 return;
453 ifap0 = ifap;
454 while (ifap) {
455 KREAD(ifap, &ifa, struct ifaddr);
456 if (ifa.ifa_addr == NULL)
457 goto nextifap;
458 KREAD(ifa.ifa_addr, &sa, struct sockaddr);
459 if (sa.sa_family != PF_INET6)
460 goto nextifap;
461 KREAD(ifap, &if6a, struct in6_ifaddr);
462 printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
474 struct ifaddr ifa;
475 struct sockaddr sa;
476 struct in6_ifaddr if6a;
477 struct ifaddr *ifap0;
478
479 if (af && af != AF_INET6)
480 return;
481 ifap0 = ifap;
482 while (ifap) {
483 KREAD(ifap, &ifa, struct ifaddr);
484 if (ifa.ifa_addr == NULL)
485 goto nextifap;
486 KREAD(ifa.ifa_addr, &sa, struct sockaddr);
487 if (sa.sa_family != PF_INET6)
488 goto nextifap;
489 KREAD(ifap, &if6a, struct in6_ifaddr);
490 printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
491 /*
492 * Print per-link MLD information, if available.
493 */
494 if (ifa.ifa_ifp != NULL) {
495 struct in6_ifextra ie;
496 struct mld_ifinfo mli;
497
498 KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
499 KREAD(ifnet.if_afdata[AF_INET6], &ie,
500 struct in6_ifextra);
501 if (ie.mld_ifinfo != NULL) {
502 KREAD(ie.mld_ifinfo, &mli, struct mld_ifinfo);
503 in6_ifinfo(&mli);
504 }
505 }
463 nextifap:
464 ifap = ifa.ifa_link.tqe_next;
465 }
466 if (ifap0) {
467 struct ifnet ifnet;
468 struct ifmultiaddr ifm, *ifmp = 0;
469 struct sockaddr_dl sdl;
470

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837
838out_free:
839 free(buf);
840#undef MAX_SYSCTL_TRY
841}
842
843#endif /* INET */
844
506 nextifap:
507 ifap = ifa.ifa_link.tqe_next;
508 }
509 if (ifap0) {
510 struct ifnet ifnet;
511 struct ifmultiaddr ifm, *ifmp = 0;
512 struct sockaddr_dl sdl;
513

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880
881out_free:
882 free(buf);
883#undef MAX_SYSCTL_TRY
884}
885
886#endif /* INET */
887
888#ifdef INET6
889/*
890 * Retrieve MLD per-group source filter mode and lists via sysctl.
891 *
892 * Note: The 128-bit IPv6 group addres needs to be segmented into
893 * 32-bit pieces for marshaling to sysctl. So the MIB name ends
894 * up looking like this:
895 * a.b.c.d.e.ifindex.g[0].g[1].g[2].g[3]
896 * Assumes that pgroup originated from the kernel, so its components
897 * are already in network-byte order.
898 */
899static void
900in6m_print_sources_sysctl(uint32_t ifindex, struct in6_addr *pgroup)
901{
902#define MAX_SYSCTL_TRY 5
903 char addrbuf[INET6_ADDRSTRLEN];
904 int mib[10];
905 int ntry = 0;
906 int *pi;
907 size_t mibsize;
908 size_t len;
909 size_t needed;
910 size_t cnt;
911 int i;
912 char *buf;
913 struct in6_addr *pina;
914 uint32_t *p;
915 uint32_t fmode;
916 const char *modestr;
917
918 mibsize = sizeof(mib) / sizeof(mib[0]);
919 if (sysctlnametomib("net.inet6.ip6.mcast.filters", mib,
920 &mibsize) == -1) {
921 perror("sysctlnametomib");
922 return;
923 }
924
925 needed = 0;
926 mib[5] = ifindex;
927 pi = (int *)pgroup;
928 for (i = 0; i < 4; i++)
929 mib[6 + i] = *pi++;
930
931 mibsize = sizeof(mib) / sizeof(mib[0]);
932 do {
933 if (sysctl(mib, mibsize, NULL, &needed, NULL, 0) == -1) {
934 perror("sysctl net.inet6.ip6.mcast.filters");
935 return;
936 }
937 if ((buf = malloc(needed)) == NULL) {
938 perror("malloc");
939 return;
940 }
941 if (sysctl(mib, mibsize, buf, &needed, NULL, 0) == -1) {
942 if (errno != ENOMEM || ++ntry >= MAX_SYSCTL_TRY) {
943 perror("sysctl");
944 goto out_free;
945 }
946 free(buf);
947 buf = NULL;
948 }
949 } while (buf == NULL);
950
951 len = needed;
952 if (len < sizeof(uint32_t)) {
953 perror("sysctl");
954 goto out_free;
955 }
956
957 p = (uint32_t *)buf;
958 fmode = *p++;
959 len -= sizeof(uint32_t);
960
961 modestr = inm_mode(fmode);
962 if (modestr)
963 printf(" mode %s", modestr);
964 else
965 printf(" mode (%u)", fmode);
966
967 if (vflag == 0)
968 goto out_free;
969
970 cnt = len / sizeof(struct in6_addr);
971 pina = (struct in6_addr *)p;
972
973 for (i = 0; i < cnt; i++) {
974 if (i == 0)
975 printf(" srcs ");
976 inet_ntop(AF_INET6, (const char *)pina++, addrbuf,
977 INET6_ADDRSTRLEN);
978 fprintf(stdout, "%s%s", (i == 0 ? "" : ","), addrbuf);
979 len -= sizeof(struct in6_addr);
980 }
981 if (len > 0) {
982 fprintf(stderr, "warning: %u trailing bytes from %s\n",
983 (unsigned int)len, "net.inet6.ip6.mcast.filters");
984 }
985
986out_free:
987 free(buf);
988#undef MAX_SYSCTL_TRY
989}
990#endif /* INET6 */
991
845static int
846ifmcstat_getifmaddrs(void)
847{
848 char thisifname[IFNAMSIZ];
849 char addrbuf[NI_MAXHOST];
850 struct ifaddrs *ifap, *ifa;
851 struct ifmaddrs *ifmap, *ifma;
852 sockunion_t lastifasa;

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1010 len = sizeof(struct igmp_ifinfo);
1011 if (sysctl(mib, mibsize + 1, &igi, &len, NULL,
1012 0) == -1) {
1013 perror("sysctl net.inet.igmp.ifinfo");
1014 goto next_ifnet;
1015 }
1016 in_ifinfo(&igi);
1017 }
992static int
993ifmcstat_getifmaddrs(void)
994{
995 char thisifname[IFNAMSIZ];
996 char addrbuf[NI_MAXHOST];
997 struct ifaddrs *ifap, *ifa;
998 struct ifmaddrs *ifmap, *ifma;
999 sockunion_t lastifasa;

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1157 len = sizeof(struct igmp_ifinfo);
1158 if (sysctl(mib, mibsize + 1, &igi, &len, NULL,
1159 0) == -1) {
1160 perror("sysctl net.inet.igmp.ifinfo");
1161 goto next_ifnet;
1162 }
1163 in_ifinfo(&igi);
1164 }
1165#endif /* INET */
1166#ifdef INET6
1167 /*
1168 * Print per-link MLD information, if available.
1169 */
1170 if (pifasa->sa.sa_family == AF_INET6) {
1171 struct mld_ifinfo mli;
1172 size_t mibsize, len;
1173 int mib[5];
1174
1175 mibsize = sizeof(mib) / sizeof(mib[0]);
1176 if (sysctlnametomib("net.inet6.mld.ifinfo",
1177 mib, &mibsize) == -1) {
1178 perror("sysctlnametomib");
1179 goto next_ifnet;
1180 }
1181 mib[mibsize] = thisifindex;
1182 len = sizeof(struct mld_ifinfo);
1183 if (sysctl(mib, mibsize + 1, &mli, &len, NULL,
1184 0) == -1) {
1185 perror("sysctl net.inet6.mld.ifinfo");
1186 goto next_ifnet;
1187 }
1188 in6_ifinfo(&mli);
1189 }
1190#endif /* INET6 */
1191#if defined(INET) || defined(INET6)
1018next_ifnet:
1019#endif
1020 lastifasa = *pifasa;
1021 }
1022
1023 /* Print this group address. */
1024#ifdef INET6
1025 if (pgsa->sa.sa_family == AF_INET6) {

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1036
1037 fprintf(stdout, "\t\tgroup %s", addrbuf);
1038#ifdef INET
1039 if (pgsa->sa.sa_family == AF_INET) {
1040 inm_print_sources_sysctl(thisifindex,
1041 pgsa->sin.sin_addr);
1042 }
1043#endif
1192next_ifnet:
1193#endif
1194 lastifasa = *pifasa;
1195 }
1196
1197 /* Print this group address. */
1198#ifdef INET6
1199 if (pgsa->sa.sa_family == AF_INET6) {

--- 10 unchanged lines hidden (view full) ---

1210
1211 fprintf(stdout, "\t\tgroup %s", addrbuf);
1212#ifdef INET
1213 if (pgsa->sa.sa_family == AF_INET) {
1214 inm_print_sources_sysctl(thisifindex,
1215 pgsa->sin.sin_addr);
1216 }
1217#endif
1218#ifdef INET6
1219 if (pgsa->sa.sa_family == AF_INET6) {
1220 in6m_print_sources_sysctl(thisifindex,
1221 &pgsa->sin6.sin6_addr);
1222 }
1223#endif
1044 fprintf(stdout, "\n");
1045
1046 /* Link-layer mapping, if present. */
1047 pllsa = (sockunion_t *)ifma->ifma_lladdr;
1048 if (pllsa != NULL) {
1049 error = getnameinfo(&pllsa->sa, pllsa->sa.sa_len,
1050 addrbuf, sizeof(addrbuf), NULL, 0, NI_NUMERICHOST);
1051 fprintf(stdout, "\t\t\tmcast-macaddr %s\n", addrbuf);
1052 }
1053 }
1054out:
1055 if (ifmap != NULL)
1056 freeifmaddrs(ifmap);
1057 if (ifap != NULL)
1058 freeifaddrs(ifap);
1059
1060 return (error);
1061}
1224 fprintf(stdout, "\n");
1225
1226 /* Link-layer mapping, if present. */
1227 pllsa = (sockunion_t *)ifma->ifma_lladdr;
1228 if (pllsa != NULL) {
1229 error = getnameinfo(&pllsa->sa, pllsa->sa.sa_len,
1230 addrbuf, sizeof(addrbuf), NULL, 0, NI_NUMERICHOST);
1231 fprintf(stdout, "\t\t\tmcast-macaddr %s\n", addrbuf);
1232 }
1233 }
1234out:
1235 if (ifmap != NULL)
1236 freeifmaddrs(ifmap);
1237 if (ifap != NULL)
1238 freeifaddrs(ifap);
1239
1240 return (error);
1241}