+ bp += 8; len -= 8;
+ /* encapsulated multicast packet */
+ ip = (struct ip *)bp;
+ switch (IP_V(ip)) {
+ case 0: /* Null header */
+ (void)printf("IP-Null-header %s > %s",
+ ipaddr_string(&ip->ip_src),
+ ipaddr_string(&ip->ip_dst));
+ break;
+
+ case 4: /* IPv4 */
+ ip_print(gndo, bp, len);
+ break;
+#ifdef INET6
+ case 6: /* IPv6 */
+ ip6_print(bp, len);
+ break;
+#endif
+ default:
+ (void)printf("IP ver %d", IP_V(ip));
+ break;
+ }
+ break;
+ }
+
+ case PIMV2_TYPE_REGISTER_STOP:
+ bp += 4; len -= 4;
+ if (bp >= ep)
+ break;
+ (void)printf(" group=");
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance; len -= advance;
+ if (bp >= ep)
+ break;
+ (void)printf(" source=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance; len -= advance;
+ break;
+
+ case PIMV2_TYPE_JOIN_PRUNE:
+ case PIMV2_TYPE_GRAFT:
+ case PIMV2_TYPE_GRAFT_ACK:
+
+
+ /*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |PIM Ver| Type | Addr length | Checksum |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Unicast-Upstream Neighbor Address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved | Num groups | Holdtime |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Multicast Group Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Number of Joined Sources | Number of Pruned Sources |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Joined Source Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Joined Source Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Pruned Source Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Pruned Source Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Multicast Group Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+ {
+ u_int8_t ngroup;
+ u_int16_t holdtime;
+ u_int16_t njoin;
+ u_int16_t nprune;
+ int i, j;
+
+ bp += 4; len -= 4;
+ if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
+ if (bp >= ep)
+ break;
+ (void)printf(", upstream-neighbor: ");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance; len -= advance;
+ }
+ if (bp + 4 > ep)
+ break;
+ ngroup = bp[1];
+ holdtime = EXTRACT_16BITS(&bp[2]);
+ (void)printf("\n\t %u group(s)", ngroup);
+ if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
+ (void)printf(", holdtime: ");
+ if (holdtime == 0xffff)
+ (void)printf("infinite");
+ else
+ relts_print(holdtime);
+ }
+ bp += 4; len -= 4;
+ for (i = 0; i < ngroup; i++) {
+ if (bp >= ep)
+ goto jp_done;
+ (void)printf("\n\t group #%u: ", i+1);
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
+ (void)printf("...)");
+ goto jp_done;
+ }
+ bp += advance; len -= advance;
+ if (bp + 4 > ep) {
+ (void)printf("...)");
+ goto jp_done;
+ }
+ njoin = EXTRACT_16BITS(&bp[0]);
+ nprune = EXTRACT_16BITS(&bp[2]);
+ (void)printf(", joined sources: %u, pruned sources: %u", njoin,nprune);
+ bp += 4; len -= 4;
+ for (j = 0; j < njoin; j++) {
+ (void)printf("\n\t joined source #%u: ",j+1);
+ if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
+ (void)printf("...)");
+ goto jp_done;
+ }
+ bp += advance; len -= advance;
+ }
+ for (j = 0; j < nprune; j++) {
+ (void)printf("\n\t pruned source #%u: ",j+1);
+ if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
+ (void)printf("...)");
+ goto jp_done;
+ }
+ bp += advance; len -= advance;
+ }
+ }
+ jp_done:
+ break;
+ }
+
+ case PIMV2_TYPE_BOOTSTRAP:
+ {
+ int i, j, frpcnt;
+ bp += 4;
+
+ /* Fragment Tag, Hash Mask len, and BSR-priority */
+ if (bp + sizeof(u_int16_t) >= ep) break;
+ (void)printf(" tag=%x", EXTRACT_16BITS(bp));
+ bp += sizeof(u_int16_t);
+ if (bp >= ep) break;
+ (void)printf(" hashmlen=%d", bp[0]);
+ if (bp + 1 >= ep) break;
+ (void)printf(" BSRprio=%d", bp[1]);
+ bp += 2;
+
+ /* Encoded-Unicast-BSR-Address */
+ if (bp >= ep) break;
+ (void)printf(" BSR=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+
+ for (i = 0; bp < ep; i++) {
+ /* Encoded-Group Address */
+ (void)printf(" (group%d: ", i);
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0))
+ < 0) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ bp += advance;
+
+ /* RP-Count, Frag RP-Cnt, and rsvd */
+ if (bp >= ep) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ (void)printf(" RPcnt=%d", bp[0]);
+ if (bp + 1 >= ep) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ (void)printf(" FRPcnt=%d", frpcnt = bp[1]);
+ bp += 4;
+
+ for (j = 0; j < frpcnt && bp < ep; j++) {
+ /* each RP info */
+ (void)printf(" RP%d=", j);
+ if ((advance = pimv2_addr_print(bp,
+ pimv2_unicast,
+ 0)) < 0) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ bp += advance;
+
+ if (bp + 1 >= ep) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ (void)printf(",holdtime=");
+ relts_print(EXTRACT_16BITS(bp));
+ if (bp + 2 >= ep) {
+ (void)printf("...)");
+ goto bs_done;
+ }
+ (void)printf(",prio=%d", bp[2]);
+ bp += 4;
+ }
+ (void)printf(")");
+ }
+ bs_done:
+ break;
+ }
+ case PIMV2_TYPE_ASSERT:
+ bp += 4; len -= 4;
+ if (bp >= ep)
+ break;
+ (void)printf(" group=");
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance; len -= advance;
+ if (bp >= ep)
+ break;
+ (void)printf(" src=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance; len -= advance;
+ if (bp + 8 > ep)
+ break;
+ if (bp[0] & 0x80)
+ (void)printf(" RPT");
+ (void)printf(" pref=%u", EXTRACT_32BITS(&bp[0]) & 0x7fffffff);
+ (void)printf(" metric=%u", EXTRACT_32BITS(&bp[4]));
+ break;
+
+ case PIMV2_TYPE_CANDIDATE_RP:
+ {
+ int i, pfxcnt;
+ bp += 4;
+
+ /* Prefix-Cnt, Priority, and Holdtime */
+ if (bp >= ep) break;
+ (void)printf(" prefix-cnt=%d", bp[0]);
+ pfxcnt = bp[0];
+ if (bp + 1 >= ep) break;
+ (void)printf(" prio=%d", bp[1]);
+ if (bp + 3 >= ep) break;
+ (void)printf(" holdtime=");
+ relts_print(EXTRACT_16BITS(&bp[2]));
+ bp += 4;
+
+ /* Encoded-Unicast-RP-Address */
+ if (bp >= ep) break;
+ (void)printf(" RP=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+
+ /* Encoded-Group Addresses */
+ for (i = 0; i < pfxcnt && bp < ep; i++) {
+ (void)printf(" Group%d=", i);
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0))
+ < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+ }
+ break;
+ }
+
+ case PIMV2_TYPE_PRUNE_REFRESH:
+ (void)printf(" src=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+ (void)printf(" grp=");
+ if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+ (void)printf(" forwarder=");
+ if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+ (void)printf("...");
+ break;
+ }
+ bp += advance;
+ TCHECK2(bp[0], 2);
+ (void)printf(" TUNR ");
+ relts_print(EXTRACT_16BITS(bp));
+ break;
+
+
+ default:
+ (void)printf(" [type %d]", PIM_TYPE(pim->pim_typever));
+ break;
+ }
+
+ return;
+
+trunc:
+ (void)printf("[|pim]");
projects / tcpdump / blobdiff