static int ospf6_decode_v3(register const struct ospf6hdr *op, register const u_char *dataend) { register const rtrid_t *ap; register const struct lsr6 *lsrp; register const struct lsa6_hdr *lshp; register const struct lsa6 *lsap; register int i; switch (op->ospf6_type) { case OSPF_TYPE_HELLO: printf("\n\tOptions [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&op->ospf6_hello.hello_options))); TCHECK(op->ospf6_hello.hello_deadint); printf("\n\t Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u", EXTRACT_16BITS(&op->ospf6_hello.hello_helloint), EXTRACT_16BITS(&op->ospf6_hello.hello_deadint), ipaddr_string(&op->ospf6_hello.hello_ifid), op->ospf6_hello.hello_priority); TCHECK(op->ospf6_hello.hello_dr); if (op->ospf6_hello.hello_dr != 0) printf("\n\t Designated Router %s", ipaddr_string(&op->ospf6_hello.hello_dr)); TCHECK(op->ospf6_hello.hello_bdr); if (op->ospf6_hello.hello_bdr != 0) printf(", Backup Designated Router %s", ipaddr_string(&op->ospf6_hello.hello_bdr)); if (vflag) { printf("\n\t Neighbor List:"); ap = op->ospf6_hello.hello_neighbor; while ((u_char *)ap < dataend) { TCHECK(*ap); printf("\n\t %s", ipaddr_string(ap)); ++ap; } } break; /* HELLO */ case OSPF_TYPE_DD: TCHECK(op->ospf6_db.db_options); printf("\n\tOptions [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&op->ospf6_db.db_options))); TCHECK(op->ospf6_db.db_flags); printf(", DD Flags [%s]", bittok2str(ospf6_dd_flag_values,"none",op->ospf6_db.db_flags)); TCHECK(op->ospf6_db.db_seq); printf(", MTU %u, DD-Sequence 0x%08x", EXTRACT_16BITS(&op->ospf6_db.db_mtu), EXTRACT_32BITS(&op->ospf6_db.db_seq)); /* Print all the LS adv's */ lshp = op->ospf6_db.db_lshdr; while (!ospf6_print_lshdr(lshp)) { ++lshp; } break; case OSPF_TYPE_LS_REQ: if (vflag) { lsrp = op->ospf6_lsr; while ((u_char *)lsrp < dataend) { TCHECK(*lsrp); printf("\n\t Advertising Router %s", ipaddr_string(&lsrp->ls_router)); ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type), &lsrp->ls_stateid); ++lsrp; } } break; case OSPF_TYPE_LS_UPDATE: if (vflag) { lsap = op->ospf6_lsu.lsu_lsa; TCHECK(op->ospf6_lsu.lsu_count); i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count); while (i--) { if (ospf6_print_lsa(lsap)) goto trunc; lsap = (struct lsa6 *)((u_char *)lsap + EXTRACT_16BITS(&lsap->ls_hdr.ls_length)); } } break; case OSPF_TYPE_LS_ACK: if (vflag) { lshp = op->ospf6_lsa.lsa_lshdr; while (!ospf6_print_lshdr(lshp)) { ++lshp; } } break; default: break; } return (0); trunc: return (1); }
/* * Print a single link state advertisement. If truncated return 1, else 0. */ static int ospf6_print_lsa(register const struct lsa6 *lsap) { register const u_char *ls_end, *ls_opt; register const struct rlalink6 *rlp; #if 0 register const struct tos_metric *tosp; #endif register const rtrid_t *ap; #if 0 register const struct aslametric *almp; register const struct mcla *mcp; #endif register const struct llsa *llsap; register const struct lsa6_prefix *lsapp; #if 0 register const u_int32_t *lp; #endif register u_int prefixes; register int bytelen, length, lsa_length; u_int32_t flags32; u_int8_t *tptr; if (ospf6_print_lshdr(&lsap->ls_hdr)) return (1); TCHECK(lsap->ls_hdr.ls_length); length = EXTRACT_16BITS(&lsap->ls_hdr.ls_length); lsa_length = length - sizeof(struct lsa6_hdr); ls_end = (u_char *)lsap + length; tptr = (u_int8_t *)lsap+sizeof(struct lsa6_hdr); switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) { case LS_TYPE_ROUTER | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_rla.rla_options); printf("\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options))); TCHECK(lsap->lsa_un.un_rla.rla_flags); printf(", RLA-Flags [%s]", bittok2str(ospf6_rla_flag_values, "none", lsap->lsa_un.un_rla.rla_flags)); TCHECK(lsap->lsa_un.un_rla.rla_link); rlp = lsap->lsa_un.un_rla.rla_link; while (rlp + 1 <= (struct rlalink6 *)ls_end) { TCHECK(*rlp); switch (rlp->link_type) { case RLA_TYPE_VIRTUAL: printf("\n\t Virtual Link: Neighbor Router-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(&rlp->link_nrtid), ipaddr_string(&rlp->link_nifid), ipaddr_string(&rlp->link_ifid)); break; case RLA_TYPE_ROUTER: printf("\n\t Neighbor Router-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(&rlp->link_nrtid), ipaddr_string(&rlp->link_nifid), ipaddr_string(&rlp->link_ifid)); break; case RLA_TYPE_TRANSIT: printf("\n\t Neighbor Network-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(&rlp->link_nrtid), ipaddr_string(&rlp->link_nifid), ipaddr_string(&rlp->link_ifid)); break; default: printf("\n\t Unknown Router Links Type 0x%02x", rlp->link_type); return (0); } printf(", metric %d", EXTRACT_16BITS(&rlp->link_metric)); rlp++; } break; case LS_TYPE_NETWORK | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_nla.nla_options); printf("\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options))); printf("\n\t Connected Routers:"); ap = lsap->lsa_un.un_nla.nla_router; while ((u_char *)ap < ls_end) { TCHECK(*ap); printf("\n\t\t%s", ipaddr_string(ap)); ++ap; } break; case LS_TYPE_INTER_AP | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric); printf(", metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC); lsapp = lsap->lsa_un.un_inter_ap.inter_ap_prefix; while (lsapp + sizeof(lsapp) <= (struct lsa6_prefix *)ls_end) { bytelen = ospf6_print_lsaprefix(lsapp); if (bytelen) goto trunc; lsapp = (struct lsa6_prefix *)(((u_char *)lsapp) + bytelen); } break; case LS_SCOPE_AS | LS_TYPE_ASE: TCHECK(lsap->lsa_un.un_asla.asla_metric); flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric); printf("\n\t Flags [%s]", bittok2str(ospf6_asla_flag_values, "none", flags32)); printf(" metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) & ASLA_MASK_METRIC); lsapp = lsap->lsa_un.un_asla.asla_prefix; bytelen = ospf6_print_lsaprefix(lsapp); if (bytelen < 0) goto trunc; if ((ls_opt = (u_char *)(((u_char *)lsapp) + bytelen)) < ls_end) { struct in6_addr *fwdaddr6; if ((flags32 & ASLA_FLAG_FWDADDR) != 0) { fwdaddr6 = (struct in6_addr *)ls_opt; TCHECK(*fwdaddr6); printf(" forward %s", ip6addr_string(fwdaddr6)); ls_opt += sizeof(struct in6_addr); } if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) { TCHECK(*(u_int32_t *)ls_opt); printf(" tag %s", ipaddr_string((u_int32_t *)ls_opt)); ls_opt += sizeof(u_int32_t); } if (lsapp->lsa_p_metric) { TCHECK(*(u_int32_t *)ls_opt); printf(" RefLSID: %s", ipaddr_string((u_int32_t *)ls_opt)); ls_opt += sizeof(u_int32_t); } } break; case LS_TYPE_LINK: /* Link LSA */ llsap = &lsap->lsa_un.un_llsa; TCHECK(llsap->llsa_options); printf("\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&llsap->llsa_options))); TCHECK(llsap->llsa_nprefix); prefixes = EXTRACT_32BITS(&llsap->llsa_nprefix); printf("\n\t Priority %d, Link-local address %s, Prefixes %d:", llsap->llsa_priority, ip6addr_string(&llsap->llsa_lladdr), prefixes); tptr = (u_int8_t *)llsap->llsa_prefix; while (prefixes > 0) { lsapp = (struct lsa6_prefix *)tptr; if ((bytelen = ospf6_print_lsaprefix(lsapp)) == -1) { goto trunc; } prefixes--; tptr += bytelen; } break; case LS_TYPE_INTRA_AP | LS_SCOPE_AREA: /* Intra-Area-Prefix LSA */ TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid); ospf6_print_ls_type( EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype), &lsap->lsa_un.un_intra_ap.intra_ap_lsid); TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix); prefixes = EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix); printf("\n\t Prefixes %d:", prefixes); tptr = (u_int8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix; while (prefixes > 0) { lsapp = (struct lsa6_prefix *)tptr; if ((bytelen = ospf6_print_lsaprefix(lsapp)) == -1) { goto trunc; } prefixes--; tptr += bytelen; } break; case LS_TYPE_GRACE | LS_SCOPE_LINKLOCAL: if (ospf_print_grace_lsa(tptr, lsa_length) == -1) { return 1; } break; case LS_TYPE_INTRA_ATE | LS_SCOPE_LINKLOCAL: if (ospf_print_te_lsa(tptr, lsa_length) == -1) { return 1; } break; default: if(!print_unknown_data(tptr, "\n\t ", lsa_length)) { return (1); } } return (0); trunc: return (1); }
static int ospf6_decode_v3(netdissect_options *ndo, register const struct ospf6hdr *op, register const u_char *dataend) { register const rtrid_t *ap; register const struct lsr6 *lsrp; register const struct lsa6_hdr *lshp; register const struct lsa6 *lsap; register int i; switch (op->ospf6_type) { case OSPF_TYPE_HELLO: { register const struct hello6 *hellop = (const struct hello6 *)((const uint8_t *)op + OSPF6HDR_LEN); ND_PRINT((ndo, "\n\tOptions [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&hellop->hello_options)))); ND_TCHECK(hellop->hello_deadint); ND_PRINT((ndo, "\n\t Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u", EXTRACT_16BITS(&hellop->hello_helloint), EXTRACT_16BITS(&hellop->hello_deadint), ipaddr_string(ndo, &hellop->hello_ifid), hellop->hello_priority)); ND_TCHECK(hellop->hello_dr); if (EXTRACT_32BITS(&hellop->hello_dr) != 0) ND_PRINT((ndo, "\n\t Designated Router %s", ipaddr_string(ndo, &hellop->hello_dr))); ND_TCHECK(hellop->hello_bdr); if (EXTRACT_32BITS(&hellop->hello_bdr) != 0) ND_PRINT((ndo, ", Backup Designated Router %s", ipaddr_string(ndo, &hellop->hello_bdr))); if (ndo->ndo_vflag > 1) { ND_PRINT((ndo, "\n\t Neighbor List:")); ap = hellop->hello_neighbor; while ((const u_char *)ap < dataend) { ND_TCHECK(*ap); ND_PRINT((ndo, "\n\t %s", ipaddr_string(ndo, ap))); ++ap; } } break; /* HELLO */ } case OSPF_TYPE_DD: { register const struct dd6 *ddp = (const struct dd6 *)((const uint8_t *)op + OSPF6HDR_LEN); ND_TCHECK(ddp->db_options); ND_PRINT((ndo, "\n\tOptions [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&ddp->db_options)))); ND_TCHECK(ddp->db_flags); ND_PRINT((ndo, ", DD Flags [%s]", bittok2str(ospf6_dd_flag_values,"none",ddp->db_flags))); ND_TCHECK(ddp->db_seq); ND_PRINT((ndo, ", MTU %u, DD-Sequence 0x%08x", EXTRACT_16BITS(&ddp->db_mtu), EXTRACT_32BITS(&ddp->db_seq))); if (ndo->ndo_vflag > 1) { /* Print all the LS adv's */ lshp = ddp->db_lshdr; while ((const u_char *)lshp < dataend) { if (ospf6_print_lshdr(ndo, lshp++, dataend)) goto trunc; } } break; } case OSPF_TYPE_LS_REQ: if (ndo->ndo_vflag > 1) { lsrp = (const struct lsr6 *)((const uint8_t *)op + OSPF6HDR_LEN); while ((const u_char *)lsrp < dataend) { ND_TCHECK(*lsrp); ND_PRINT((ndo, "\n\t Advertising Router %s", ipaddr_string(ndo, &lsrp->ls_router))); ospf6_print_ls_type(ndo, EXTRACT_16BITS(&lsrp->ls_type), &lsrp->ls_stateid); ++lsrp; } } break; case OSPF_TYPE_LS_UPDATE: if (ndo->ndo_vflag > 1) { register const struct lsu6 *lsup = (const struct lsu6 *)((const uint8_t *)op + OSPF6HDR_LEN); ND_TCHECK(lsup->lsu_count); i = EXTRACT_32BITS(&lsup->lsu_count); lsap = lsup->lsu_lsa; while ((const u_char *)lsap < dataend && i--) { if (ospf6_print_lsa(ndo, lsap, dataend)) goto trunc; lsap = (const struct lsa6 *)((const u_char *)lsap + EXTRACT_16BITS(&lsap->ls_hdr.ls_length)); } } break; case OSPF_TYPE_LS_ACK: if (ndo->ndo_vflag > 1) { lshp = (const struct lsa6_hdr *)((const uint8_t *)op + OSPF6HDR_LEN); while ((const u_char *)lshp < dataend) { if (ospf6_print_lshdr(ndo, lshp++, dataend)) goto trunc; } } break; default: break; } return (0); trunc: return (1); }
/* * Print a single link state advertisement. If truncated return 1, else 0. */ static int ospf6_print_lsa(netdissect_options *ndo, register const struct lsa6 *lsap, const u_char *dataend) { register const struct rlalink6 *rlp; #if 0 register const struct tos_metric *tosp; #endif register const rtrid_t *ap; #if 0 register const struct aslametric *almp; register const struct mcla *mcp; #endif register const struct llsa *llsap; register const struct lsa6_prefix *lsapp; #if 0 register const uint32_t *lp; #endif register u_int prefixes; register int bytelen; register u_int length, lsa_length; uint32_t flags32; const uint8_t *tptr; if (ospf6_print_lshdr(ndo, &lsap->ls_hdr, dataend)) return (1); ND_TCHECK(lsap->ls_hdr.ls_length); length = EXTRACT_16BITS(&lsap->ls_hdr.ls_length); /* * The LSA length includes the length of the header; * it must have a value that's at least that length. * If it does, find the length of what follows the * header. */ if (length < sizeof(struct lsa6_hdr) || (const u_char *)lsap + length > dataend) return (1); lsa_length = length - sizeof(struct lsa6_hdr); tptr = (const uint8_t *)lsap+sizeof(struct lsa6_hdr); switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) { case LS_TYPE_ROUTER | LS_SCOPE_AREA: if (lsa_length < sizeof (lsap->lsa_un.un_rla.rla_options)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_rla.rla_options); ND_TCHECK(lsap->lsa_un.un_rla.rla_options); ND_PRINT((ndo, "\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options)))); ND_PRINT((ndo, ", RLA-Flags [%s]", bittok2str(ospf6_rla_flag_values, "none", lsap->lsa_un.un_rla.rla_flags))); rlp = lsap->lsa_un.un_rla.rla_link; while (lsa_length != 0) { if (lsa_length < sizeof (*rlp)) return (1); lsa_length -= sizeof (*rlp); ND_TCHECK(*rlp); switch (rlp->link_type) { case RLA_TYPE_VIRTUAL: ND_PRINT((ndo, "\n\t Virtual Link: Neighbor Router-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(ndo, &rlp->link_nrtid), ipaddr_string(ndo, &rlp->link_nifid), ipaddr_string(ndo, &rlp->link_ifid))); break; case RLA_TYPE_ROUTER: ND_PRINT((ndo, "\n\t Neighbor Router-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(ndo, &rlp->link_nrtid), ipaddr_string(ndo, &rlp->link_nifid), ipaddr_string(ndo, &rlp->link_ifid))); break; case RLA_TYPE_TRANSIT: ND_PRINT((ndo, "\n\t Neighbor Network-ID %s" "\n\t Neighbor Interface-ID %s, Interface %s", ipaddr_string(ndo, &rlp->link_nrtid), ipaddr_string(ndo, &rlp->link_nifid), ipaddr_string(ndo, &rlp->link_ifid))); break; default: ND_PRINT((ndo, "\n\t Unknown Router Links Type 0x%02x", rlp->link_type)); return (0); } ND_PRINT((ndo, ", metric %d", EXTRACT_16BITS(&rlp->link_metric))); rlp++; } break; case LS_TYPE_NETWORK | LS_SCOPE_AREA: if (lsa_length < sizeof (lsap->lsa_un.un_nla.nla_options)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_nla.nla_options); ND_TCHECK(lsap->lsa_un.un_nla.nla_options); ND_PRINT((ndo, "\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options)))); ND_PRINT((ndo, "\n\t Connected Routers:")); ap = lsap->lsa_un.un_nla.nla_router; while (lsa_length != 0) { if (lsa_length < sizeof (*ap)) return (1); lsa_length -= sizeof (*ap); ND_TCHECK(*ap); ND_PRINT((ndo, "\n\t\t%s", ipaddr_string(ndo, ap))); ++ap; } break; case LS_TYPE_INTER_AP | LS_SCOPE_AREA: if (lsa_length < sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric); ND_TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric); ND_PRINT((ndo, ", metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC)); tptr = (const uint8_t *)lsap->lsa_un.un_inter_ap.inter_ap_prefix; while (lsa_length != 0) { bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length); if (bytelen < 0) goto trunc; lsa_length -= bytelen; tptr += bytelen; } break; case LS_TYPE_ASE | LS_SCOPE_AS: if (lsa_length < sizeof (lsap->lsa_un.un_asla.asla_metric)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_asla.asla_metric); ND_TCHECK(lsap->lsa_un.un_asla.asla_metric); flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric); ND_PRINT((ndo, "\n\t Flags [%s]", bittok2str(ospf6_asla_flag_values, "none", flags32))); ND_PRINT((ndo, " metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) & ASLA_MASK_METRIC)); tptr = (const uint8_t *)lsap->lsa_un.un_asla.asla_prefix; lsapp = (const struct lsa6_prefix *)tptr; bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length); if (bytelen < 0) goto trunc; lsa_length -= bytelen; tptr += bytelen; if ((flags32 & ASLA_FLAG_FWDADDR) != 0) { const struct in6_addr *fwdaddr6; fwdaddr6 = (const struct in6_addr *)tptr; if (lsa_length < sizeof (*fwdaddr6)) return (1); lsa_length -= sizeof (*fwdaddr6); ND_TCHECK(*fwdaddr6); ND_PRINT((ndo, " forward %s", ip6addr_string(ndo, fwdaddr6))); tptr += sizeof(*fwdaddr6); } if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) { if (lsa_length < sizeof (uint32_t)) return (1); lsa_length -= sizeof (uint32_t); ND_TCHECK(*(const uint32_t *)tptr); ND_PRINT((ndo, " tag %s", ipaddr_string(ndo, (const uint32_t *)tptr))); tptr += sizeof(uint32_t); } if (lsapp->lsa_p_metric) { if (lsa_length < sizeof (uint32_t)) return (1); lsa_length -= sizeof (uint32_t); ND_TCHECK(*(const uint32_t *)tptr); ND_PRINT((ndo, " RefLSID: %s", ipaddr_string(ndo, (const uint32_t *)tptr))); tptr += sizeof(uint32_t); } break; case LS_TYPE_LINK: /* Link LSA */ llsap = &lsap->lsa_un.un_llsa; if (lsa_length < sizeof (llsap->llsa_priandopt)) return (1); lsa_length -= sizeof (llsap->llsa_priandopt); ND_TCHECK(llsap->llsa_priandopt); ND_PRINT((ndo, "\n\t Options [%s]", bittok2str(ospf6_option_values, "none", EXTRACT_32BITS(&llsap->llsa_options)))); if (lsa_length < sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix)) return (1); lsa_length -= sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix); prefixes = EXTRACT_32BITS(&llsap->llsa_nprefix); ND_PRINT((ndo, "\n\t Priority %d, Link-local address %s, Prefixes %d:", llsap->llsa_priority, ip6addr_string(ndo, &llsap->llsa_lladdr), prefixes)); tptr = (const uint8_t *)llsap->llsa_prefix; while (prefixes > 0) { bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length); if (bytelen < 0) goto trunc; prefixes--; lsa_length -= bytelen; tptr += bytelen; } break; case LS_TYPE_INTRA_AP | LS_SCOPE_AREA: /* Intra-Area-Prefix LSA */ if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid); ND_TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid); ospf6_print_ls_type(ndo, EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype), &lsap->lsa_un.un_intra_ap.intra_ap_lsid); if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix)) return (1); lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix); ND_TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix); prefixes = EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix); ND_PRINT((ndo, "\n\t Prefixes %d:", prefixes)); tptr = (const uint8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix; while (prefixes > 0) { bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length); if (bytelen < 0) goto trunc; prefixes--; lsa_length -= bytelen; tptr += bytelen; } break; case LS_TYPE_GRACE | LS_SCOPE_LINKLOCAL: if (ospf_print_grace_lsa(ndo, tptr, lsa_length) == -1) { return 1; } break; case LS_TYPE_INTRA_ATE | LS_SCOPE_LINKLOCAL: if (ospf_print_te_lsa(ndo, tptr, lsa_length) == -1) { return 1; } break; default: if(!print_unknown_data(ndo,tptr, "\n\t ", lsa_length)) { return (1); } break; } return (0); trunc: return (1); }
static int ospf6_decode_v3(register const struct ospf6hdr *op, register const u_char *dataend) { register const rtrid_t *ap; register const struct lsr *lsrp; register const struct lsa_hdr *lshp; register const struct lsa *lsap; register char sep; register int i; switch (op->ospf6_type) { case OSPF_TYPE_UMD: /* * Rob Coltun's special monitoring packets; * do nothing */ break; case OSPF_TYPE_HELLO: if (vflag) { TCHECK(op->ospf6_hello.hello_deadint); ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&op->ospf6_hello.hello_options)); printf(" ifid %s pri %d int %d dead %u", ipaddr_string(&op->ospf6_hello.hello_ifid), op->ospf6_hello.hello_priority, EXTRACT_16BITS(&op->ospf6_hello.hello_helloint), EXTRACT_16BITS(&op->ospf6_hello.hello_deadint)); } TCHECK(op->ospf6_hello.hello_dr); if (op->ospf6_hello.hello_dr != 0) printf(" dr %s", ipaddr_string(&op->ospf6_hello.hello_dr)); TCHECK(op->ospf6_hello.hello_bdr); if (op->ospf6_hello.hello_bdr != 0) printf(" bdr %s", ipaddr_string(&op->ospf6_hello.hello_bdr)); if (vflag) { printf(" nbrs"); ap = op->ospf6_hello.hello_neighbor; while ((u_char *)ap < dataend) { TCHECK(*ap); printf(" %s", ipaddr_string(ap)); ++ap; } } break; /* HELLO */ case OSPF_TYPE_DB: TCHECK(op->ospf6_db.db_options); ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&op->ospf6_db.db_options)); sep = ' '; TCHECK(op->ospf6_db.db_flags); if (op->ospf6_db.db_flags & OSPF6_DB_INIT) { printf("%cI", sep); sep = '/'; } if (op->ospf6_db.db_flags & OSPF6_DB_MORE) { printf("%cM", sep); sep = '/'; } if (op->ospf6_db.db_flags & OSPF6_DB_MASTER) { printf("%cMS", sep); sep = '/'; } TCHECK(op->ospf6_db.db_seq); printf(" mtu %u S %X", EXTRACT_16BITS(&op->ospf6_db.db_mtu), EXTRACT_32BITS(&op->ospf6_db.db_seq)); if (vflag) { /* Print all the LS adv's */ lshp = op->ospf6_db.db_lshdr; while (!ospf6_print_lshdr(lshp)) { /* { (ctags) */ printf(" }"); ++lshp; } } break; case OSPF_TYPE_LSR: if (vflag) { lsrp = op->ospf6_lsr; while ((u_char *)lsrp < dataend) { TCHECK(*lsrp); printf(" {"); /* } (ctags) */ ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type), &lsrp->ls_stateid, &lsrp->ls_router, "LinkStateType %d"); /* { (ctags) */ printf(" }"); ++lsrp; } } break; case OSPF_TYPE_LSU: if (vflag) { lsap = op->ospf6_lsu.lsu_lsa; TCHECK(op->ospf6_lsu.lsu_count); i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count); while (i--) { if (ospf6_print_lsa(lsap)) goto trunc; lsap = (struct lsa *)((u_char *)lsap + EXTRACT_16BITS(&lsap->ls_hdr.ls_length)); } } break; case OSPF_TYPE_LSA: if (vflag) { lshp = op->ospf6_lsa.lsa_lshdr; while (!ospf6_print_lshdr(lshp)) { /* { (ctags) */ printf(" }"); ++lshp; } } break; default: printf("v3 type %d", op->ospf6_type); break; } return (0); trunc: return (1); }
/* * Print a single link state advertisement. If truncated return 1, else 0. */ static int ospf6_print_lsa(register const struct lsa *lsap) { register const u_char *ls_end, *ls_opt; register const struct rlalink *rlp; #if 0 register const struct tos_metric *tosp; #endif register const rtrid_t *ap; #if 0 register const struct aslametric *almp; register const struct mcla *mcp; #endif register const struct llsa *llsap; register const struct lsa_prefix *lsapp; #if 0 register const u_int32_t *lp; #endif register u_int j; register int k; u_int32_t flags32; if (ospf6_print_lshdr(&lsap->ls_hdr)) return (1); TCHECK(lsap->ls_hdr.ls_length); ls_end = (u_char *)lsap + EXTRACT_16BITS(&lsap->ls_hdr.ls_length); switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) { case LS_TYPE_ROUTER | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_rla.rla_flags); ospf6_print_bits(ospf6_rla_flag_bits, lsap->lsa_un.un_rla.rla_flags); TCHECK(lsap->lsa_un.un_rla.rla_options); ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options)); TCHECK(lsap->lsa_un.un_rla.rla_link); rlp = lsap->lsa_un.un_rla.rla_link; while (rlp + sizeof(*rlp) <= (struct rlalink *)ls_end) { TCHECK(*rlp); printf(" {"); /* } (ctags) */ switch (rlp->link_type) { case RLA_TYPE_VIRTUAL: printf(" virt"); /* Fall through */ case RLA_TYPE_ROUTER: printf(" nbrid %s nbrif %s if %s", ipaddr_string(&rlp->link_nrtid), ipaddr_string(&rlp->link_nifid), ipaddr_string(&rlp->link_ifid)); break; case RLA_TYPE_TRANSIT: printf(" dr %s drif %s if %s", ipaddr_string(&rlp->link_nrtid), ipaddr_string(&rlp->link_nifid), ipaddr_string(&rlp->link_ifid)); break; default: /* { (ctags) */ printf(" ??RouterLinksType 0x%02x?? }", rlp->link_type); return (0); } printf(" metric %d", EXTRACT_16BITS(&rlp->link_metric)); /* { (ctags) */ printf(" }"); rlp++; } break; case LS_TYPE_NETWORK | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_nla.nla_options); ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options)); printf(" rtrs"); ap = lsap->lsa_un.un_nla.nla_router; while ((u_char *)ap < ls_end) { TCHECK(*ap); printf(" %s", ipaddr_string(ap)); ++ap; } break; case LS_TYPE_INTER_AP | LS_SCOPE_AREA: TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric); printf(" metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC); lsapp = lsap->lsa_un.un_inter_ap.inter_ap_prefix; while (lsapp + sizeof(lsapp) <= (struct lsa_prefix *)ls_end) { k = ospf6_print_lsaprefix(lsapp); if (k) goto trunc; lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); } break; case LS_SCOPE_AS | LS_TYPE_ASE: TCHECK(lsap->lsa_un.un_asla.asla_metric); flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric); ospf6_print_bits(ospf6_asla_flag_bits, flags32); printf(" metric %u", EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) & ASLA_MASK_METRIC); lsapp = lsap->lsa_un.un_asla.asla_prefix; k = ospf6_print_lsaprefix(lsapp); if (k < 0) goto trunc; if ((ls_opt = (u_char *)(((u_char *)lsapp) + k)) < ls_end) { struct in6_addr *fwdaddr6; if ((flags32 & ASLA_FLAG_FWDADDR) != 0) { fwdaddr6 = (struct in6_addr *)ls_opt; TCHECK(*fwdaddr6); printf(" forward %s", ip6addr_string(fwdaddr6)); ls_opt += sizeof(struct in6_addr); } if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) { TCHECK(*(u_int32_t *)ls_opt); printf(" tag %s", ipaddr_string((u_int32_t *)ls_opt)); ls_opt += sizeof(u_int32_t); } if (lsapp->lsa_p_mbz) { TCHECK(*(u_int32_t *)ls_opt); printf(" RefLSID: %s", ipaddr_string((u_int32_t *)ls_opt)); ls_opt += sizeof(u_int32_t); } } break; #if 0 case LS_TYPE_SUM_ABR: TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); lp = lsap->lsa_un.un_sla.sla_tosmetric; while ((u_char *)lp < ls_end) { register u_int32_t ul; TCHECK(*lp); ul = EXTRACT_32BITS(lp); printf(" tos %d metric %d", (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS, ul & SLA_MASK_METRIC); ++lp; } break; case LS_TYPE_GROUP: /* Multicast extensions as of 23 July 1991 */ mcp = lsap->lsa_un.un_mcla; while ((u_char *)mcp < ls_end) { TCHECK(mcp->mcla_vid); switch (EXTRACT_32BITS(&mcp->mcla_vtype)) { case MCLA_VERTEX_ROUTER: printf(" rtr rtrid %s", ipaddr_string(&mcp->mcla_vid)); break; case MCLA_VERTEX_NETWORK: printf(" net dr %s", ipaddr_string(&mcp->mcla_vid)); break; default: printf(" ??VertexType %u??", EXTRACT_32BITS(&mcp->mcla_vtype)); break; } ++mcp; } #endif case LS_TYPE_LINK: /* Link LSA */ llsap = &lsap->lsa_un.un_llsa; TCHECK(llsap->llsa_options); ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&llsap->llsa_options)); TCHECK(llsap->llsa_nprefix); printf(" pri %d lladdr %s npref %d", llsap->llsa_priority, ip6addr_string(&llsap->llsa_lladdr), EXTRACT_32BITS(&llsap->llsa_nprefix)); lsapp = llsap->llsa_prefix; for (j = 0; j < EXTRACT_32BITS(&llsap->llsa_nprefix); j++) { k = ospf6_print_lsaprefix(lsapp); if (k) goto trunc; lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); } break; case LS_TYPE_INTRA_AP | LS_SCOPE_AREA: /* Intra-Area-Prefix LSA */ TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid); ospf6_print_ls_type( EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype), &lsap->lsa_un.un_intra_ap.intra_ap_lsid, &lsap->lsa_un.un_intra_ap.intra_ap_rtid, "LinkStateType %d"); TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix); printf(" npref %d", EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix)); lsapp = lsap->lsa_un.un_intra_ap.intra_ap_prefix; for (j = 0; j < EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix); j++) { k = ospf6_print_lsaprefix(lsapp); if (k) goto trunc; lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); } break; default: printf(" ??LinkStateType 0x%04x??", EXTRACT_16BITS(&lsap->ls_hdr.ls_type)); } /* { (ctags) */ fputs(" }", stdout); return (0); trunc: fputs(" }", stdout); return (1); }