+ switch(tlv_type) {
+ case LS_OPAQUE_TE_TLV_LINK:
+ while (tlv_length >= sizeof(subtlv_type) + sizeof(subtlv_length)) {
+ if (tlv_length < 4) {
+ ND_PRINT((ndo, "\n\t Remaining TLV length %u < 4",
+ tlv_length));
+ return -1;
+ }
+ ND_TCHECK_4(tptr);
+ subtlv_type = EXTRACT_BE_U_2(tptr);
+ subtlv_length = EXTRACT_BE_U_2(tptr + 2);
+ tptr+=4;
+ tlv_length-=4;
+
+ /* Infinite loop protection */
+ if (subtlv_type == 0 || subtlv_length == 0)
+ goto invalid;
+
+ ND_PRINT((ndo, "\n\t %s subTLV (%u), length: %u",
+ tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type),
+ subtlv_type,
+ subtlv_length));
+
+ ND_TCHECK_LEN(tptr, subtlv_length);
+ switch(subtlv_type) {
+ case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP:
+ if (subtlv_length != 4) {
+ ND_PRINT((ndo, " != 4"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", 0x%08x", EXTRACT_BE_U_4(tptr)));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID:
+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID:
+ if (subtlv_length != 4 && subtlv_length != 8) {
+ ND_PRINT((ndo, " != 4 && != 8"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", %s (0x%08x)",
+ ipaddr_string(ndo, tptr),
+ EXTRACT_BE_U_4(tptr)));
+ if (subtlv_length == 8) /* rfc4203 */
+ ND_PRINT((ndo, ", %s (0x%08x)",
+ ipaddr_string(ndo, tptr+4),
+ EXTRACT_BE_U_4(tptr + 4)));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP:
+ case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP:
+ if (subtlv_length != 4) {
+ ND_PRINT((ndo, " != 4"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW:
+ case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW:
+ if (subtlv_length != 4) {
+ ND_PRINT((ndo, " != 4"));
+ goto invalid;
+ }
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, ", %.3f Mbps", bw.f * 8 / 1000000));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW:
+ if (subtlv_length != 32) {
+ ND_PRINT((ndo, " != 32"));
+ goto invalid;
+ }
+ for (te_class = 0; te_class < 8; te_class++) {
+ bw.i = EXTRACT_BE_U_4(tptr + te_class * 4);
+ ND_PRINT((ndo, "\n\t\tTE-Class %u: %.3f Mbps",
+ te_class,
+ bw.f * 8 / 1000000));
+ }
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS:
+ if (subtlv_length < 4) {
+ ND_PRINT((ndo, " < 4"));
+ goto invalid;
+ }
+ /* BC Model Id (1 octet) + Reserved (3 octets) */
+ ND_PRINT((ndo, "\n\t\tBandwidth Constraints Model ID: %s (%u)",
+ tok2str(diffserv_te_bc_values, "unknown", EXTRACT_U_1(tptr)),
+ EXTRACT_U_1(tptr)));
+ if (subtlv_length % 4 != 0) {
+ ND_PRINT((ndo, "\n\t\tlength %u != N x 4", subtlv_length));
+ goto invalid;
+ }
+ if (subtlv_length > 36) {
+ ND_PRINT((ndo, "\n\t\tlength %u > 36", subtlv_length));
+ goto invalid;
+ }
+ /* decode BCs until the subTLV ends */
+ for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) {
+ bw.i = EXTRACT_BE_U_4(tptr + 4 + te_class * 4);
+ ND_PRINT((ndo, "\n\t\t Bandwidth constraint CT%u: %.3f Mbps",
+ te_class,
+ bw.f * 8 / 1000000));
+ }
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC:
+ if (subtlv_length != 4) {
+ ND_PRINT((ndo, " != 4"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", Metric %u", EXTRACT_BE_U_4(tptr)));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE:
+ /* Protection Cap (1 octet) + Reserved ((3 octets) */
+ if (subtlv_length != 4) {
+ ND_PRINT((ndo, " != 4"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", %s",
+ bittok2str(gmpls_link_prot_values, "none", EXTRACT_U_1(tptr))));
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR:
+ if (subtlv_length < 36) {
+ ND_PRINT((ndo, " < 36"));
+ goto invalid;
+ }
+ /* Switching Cap (1 octet) + Encoding (1) + Reserved (2) */
+ ND_PRINT((ndo, "\n\t\tInterface Switching Capability: %s",
+ tok2str(gmpls_switch_cap_values, "Unknown", EXTRACT_U_1((tptr)))));
+ ND_PRINT((ndo, "\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:",
+ tok2str(gmpls_encoding_values, "Unknown", EXTRACT_U_1((tptr + 1)))));
+ for (priority_level = 0; priority_level < 8; priority_level++) {
+ bw.i = EXTRACT_BE_U_4(tptr + 4 + (priority_level * 4));
+ ND_PRINT((ndo, "\n\t\t priority level %d: %.3f Mbps",
+ priority_level,
+ bw.f * 8 / 1000000));
+ }
+ break;
+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE:
+ if (subtlv_length != 1) {
+ ND_PRINT((ndo, " != 1"));
+ goto invalid;
+ }
+ ND_PRINT((ndo, ", %s (%u)",
+ tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",EXTRACT_U_1(tptr)),
+ EXTRACT_U_1(tptr)));
+ break;
+
+ case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP:
+ if (subtlv_length % 4 != 0) {
+ ND_PRINT((ndo, " != N x 4"));
+ goto invalid;
+ }
+ count_srlg = subtlv_length / 4;
+ if (count_srlg != 0)
+ ND_PRINT((ndo, "\n\t\t Shared risk group: "));
+ while (count_srlg > 0) {
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%d", bw.i));
+ tptr+=4;
+ count_srlg--;
+ if (count_srlg > 0)
+ ND_PRINT((ndo, ", "));
+ }
+ break;
+
+ default:
+ if (ndo->ndo_vflag <= 1) {
+ if (!print_unknown_data(ndo, tptr, "\n\t\t", subtlv_length))
+ return -1;
+ }
+ break;
+ }
+ /* in OSPF everything has to be 32-bit aligned, including subTLVs */
+ if (subtlv_length%4 != 0)
+ subtlv_length+=4-(subtlv_length%4);
+
+ tlv_length-=subtlv_length;
+ tptr+=subtlv_length;
+
+ }
+ break;
+
+ case LS_OPAQUE_TE_TLV_ROUTER:
+ if (tlv_length < 4) {
+ ND_PRINT((ndo, "\n\t TLV length %u < 4", tlv_length));
+ return -1;
+ }
+ ND_TCHECK_4(tptr);
+ ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));
+ break;
+
+ default:
+ if (ndo->ndo_vflag <= 1) {
+ if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length))
+ return -1;
+ }
+ break;
+ }
+ /* in OSPF everything has to be 32-bit aligned, including TLVs */
+ if (tlv_length%4 != 0)
+ tlv_length+=4-(tlv_length%4);
+ ls_length-=tlv_length;
+ tptr+=tlv_length;
+ }
+ return 0;
+trunc:
+ return -1;
+invalid:
+ ND_PRINT((ndo, "%s", istr));
+ return -1;
projects / tcpdump / blobdiff