/*
* specification:
*
- * CLNP: ISO 8473 (respective ITU version is at http://www.itu.int/rec/T-REC-X.233/en/)
+ * CLNP: ISO 8473 (respective ITU version is at https://www.itu.int/rec/T-REC-X.233/en/)
* ES-IS: ISO 9542
* IS-IS: ISO 10589
*/
#define ISIS_TLV_PART_DIS 4 /* iso10589 */
#define ISIS_TLV_PREFIX_NEIGH 5 /* iso10589 */
#define ISIS_TLV_ISNEIGH 6 /* iso10589 */
-#define ISIS_TLV_ISNEIGH_VARLEN 7 /* iso10589 */
+#define ISIS_TLV_INSTANCE_ID 7 /* rfc8202 */
#define ISIS_TLV_PADDING 8 /* iso10589 */
#define ISIS_TLV_LSP 9 /* iso10589 */
#define ISIS_TLV_AUTH 10 /* iso10589, rfc3567 */
#define ISIS_TLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */
#define ISIS_TLV_PTP_ADJ 240 /* rfc3373 */
#define ISIS_TLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */
+#define ISIS_TLV_ROUTER_CAPABILITY 242 /* rfc7981 */
#define ISIS_TLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-experimental-tlv-01 */
#define ISIS_TLV_VENDOR_PRIVATE_MINLEN 3
{ ISIS_TLV_PART_DIS, "Partition DIS"},
{ ISIS_TLV_PREFIX_NEIGH, "Prefix Neighbors"},
{ ISIS_TLV_ISNEIGH, "IS Neighbor(s)"},
- { ISIS_TLV_ISNEIGH_VARLEN, "IS Neighbor(s) (variable length)"},
+ { ISIS_TLV_INSTANCE_ID, "Instance Identifier"},
{ ISIS_TLV_PADDING, "Padding"},
{ ISIS_TLV_LSP, "LSP entries"},
{ ISIS_TLV_AUTH, "Authentication"},
{ ISIS_TLV_MT_IP6_REACH, "Multi-Topology IP6 Reachability"},
{ ISIS_TLV_PTP_ADJ, "Point-to-point Adjacency State"},
{ ISIS_TLV_IIH_SEQNR, "Hello PDU Sequence Number"},
+ { ISIS_TLV_ROUTER_CAPABILITY, "IS-IS Router Capability"},
{ ISIS_TLV_VENDOR_PRIVATE, "Vendor Private"},
{ 0, NULL }
};
{ 0, NULL }
};
+static const struct tok isis_tlv_router_capability_flags[] = {
+ { 0x01, "S bit"},
+ { 0x02, "D bit"},
+ { 0, NULL }
+};
+
+#define ISIS_SUBTLV_ROUTER_CAP_SR 2 /* rfc 8667 */
+
+static const struct tok isis_router_capability_subtlv_values[] = {
+ { ISIS_SUBTLV_ROUTER_CAP_SR, "SR-Capabilities"},
+ { 0, NULL }
+};
+
+static const struct tok isis_router_capability_sr_flags[] = {
+ { 0x80, "ipv4"},
+ { 0x40, "ipv6"},
+ { 0, NULL }
+};
+
#define ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP 3 /* rfc5305 */
#define ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID 4 /* rfc4205 */
#define ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID 5 /* rfc5305 */
#define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32 1 /* draft-ietf-isis-admin-tags-01 */
#define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64 2 /* draft-ietf-isis-admin-tags-01 */
+#define ISIS_SUBTLV_EXTD_IP_REACH_PREFIX_SID 3 /* rfc8667 */
#define ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR 117 /* draft-ietf-isis-wg-multi-topology-05 */
static const struct tok isis_ext_ip_reach_subtlv_values[] = {
{ ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32, "32-Bit Administrative tag" },
{ ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64, "64-Bit Administrative tag" },
+ { ISIS_SUBTLV_EXTD_IP_REACH_PREFIX_SID, "Prefix SID" },
{ ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR, "Management Prefix Color" },
{ 0, NULL }
};
+#define ISIS_PREFIX_SID_FLAG_R 0x80 /* rfc 8667 */
+#define ISIS_PREFIX_SID_FLAG_N 0x40 /* rfc 8667 */
+#define ISIS_PREFIX_SID_FLAG_P 0x20 /* rfc 8667 */
+#define ISIS_PREFIX_SID_FLAG_E 0x10 /* rfc 8667 */
+#define ISIS_PREFIX_SID_FLAG_V 0x08 /* rfc 8667 */
+#define ISIS_PREFIX_SID_FLAG_L 0x04 /* rfc 8667 */
+
+static const struct tok prefix_sid_flag_values[] = {
+ { ISIS_PREFIX_SID_FLAG_R, "Readvertisement"},
+ { ISIS_PREFIX_SID_FLAG_N, "Node"},
+ { ISIS_PREFIX_SID_FLAG_P, "No-PHP"},
+ { ISIS_PREFIX_SID_FLAG_E, "Explicit NULL"},
+ { ISIS_PREFIX_SID_FLAG_V, "Value"},
+ { ISIS_PREFIX_SID_FLAG_L, "Local"},
+ { 0, NULL}
+};
+
+
+/* rfc 8667 */
+static const struct tok prefix_sid_algo_values[] = {
+ { 0, "SPF"},
+ { 1, "strict-SPF"},
+ { 0, NULL}
+};
+
static const struct tok isis_subtlv_link_attribute_values[] = {
{ 0x01, "Local Protection Available" },
{ 0x02, "Link excluded from local protection path" },
if (ndo->ndo_vflag < 1) {
ND_PRINT("%s%s > %s, %s, length %u",
ndo->ndo_eflag ? "" : ", ",
- isonsap_string(ndo, source_address, source_address_length),
- isonsap_string(ndo, dest_address, dest_address_length),
+ GET_ISONSAP_STRING(source_address, source_address_length),
+ GET_ISONSAP_STRING(dest_address, dest_address_length),
tok2str(clnp_pdu_values,"unknown (%u)",clnp_pdu_type),
length);
return (1);
ND_PRINT("\n\tsource address (length %u): %s\n\tdest address (length %u): %s",
source_address_length,
- isonsap_string(ndo, source_address, source_address_length),
+ GET_ISONSAP_STRING(source_address, source_address_length),
dest_address_length,
- isonsap_string(ndo, dest_address, dest_address_length));
+ GET_ISONSAP_STRING(dest_address, dest_address_length));
if (clnp_flags & CLNP_SEGMENT_PART) {
if (li_remaining < sizeof(struct clnp_segment_header_t)) {
source_address_length);
ND_PRINT("\n\t NSAP address (length %u): %s",
source_address_length,
- isonsap_string(ndo, source_address, source_address_length));
+ GET_ISONSAP_STRING(source_address, source_address_length));
}
tlen-=source_address_length+1;
}
dst = pptr;
pptr += dstl;
li -= dstl;
- ND_PRINT("\n\t %s", isonsap_string(ndo, dst, dstl));
+ ND_PRINT("\n\t %s", GET_ISONSAP_STRING(dst, dstl));
ND_TCHECK_1(pptr);
if (li < 1) {
if (snpal == 6)
ND_PRINT("\n\t SNPA (length: %u): %s",
snpal,
- etheraddr_string(ndo, snpa));
+ GET_ETHERADDR_STRING(snpa));
else
ND_PRINT("\n\t SNPA (length: %u): %s",
snpal,
- linkaddr_string(ndo, snpa, LINKADDR_OTHER, snpal));
+ GET_LINKADDR_STRING(snpa, LINKADDR_OTHER, snpal));
if (netal != 0)
ND_PRINT("\n\t NET (length: %u) %s",
netal,
- isonsap_string(ndo, neta, netal));
+ GET_ISONSAP_STRING(neta, netal));
break;
}
}
ND_PRINT("\n\t NET (length: %u): %s",
source_address_length,
- isonsap_string(ndo, pptr, source_address_length));
+ GET_ISONSAP_STRING(pptr, source_address_length));
pptr += source_address_length;
li -= source_address_length;
source_address_number--;
ND_PRINT(", bad ish/li");
return;
}
- ND_PRINT("\n\t NET (length: %u): %s", source_address_length, isonsap_string(ndo, pptr, source_address_length));
+ ND_PRINT("\n\t NET (length: %u): %s", source_address_length, GET_ISONSAP_STRING(pptr, source_address_length));
pptr += source_address_length;
li -= source_address_length;
break;
if (sysid_len > id_len)
sysid_len = id_len;
for (i = 1; i <= sysid_len; i++) {
- nd_snprintf(pos, sizeof(id) - (pos - id), "%02x", GET_U_1(cp));
+ snprintf(pos, sizeof(id) - (pos - id), "%02x", GET_U_1(cp));
cp++;
pos += strlen(pos);
if (i == 2 || i == 4)
*pos++ = '.';
}
if (id_len >= NODE_ID_LEN) {
- nd_snprintf(pos, sizeof(id) - (pos - id), ".%02x", GET_U_1(cp));
+ snprintf(pos, sizeof(id) - (pos - id), ".%02x", GET_U_1(cp));
cp++;
pos += strlen(pos);
}
if (id_len == LSP_ID_LEN)
- nd_snprintf(pos, sizeof(id) - (pos - id), "-%02x", GET_U_1(cp));
+ snprintf(pos, sizeof(id) - (pos - id), "-%02x", GET_U_1(cp));
return (id);
}
while (length > 0) {
if ((size_t)length < sizeof(*tlv_ip_reach)) {
- ND_PRINT("short IPv4 Reachability (%u vs %lu)",
+ ND_PRINT("short IPv4 Reachability (%u vs %zu)",
length,
- (unsigned long)sizeof(*tlv_ip_reach));
+ sizeof(*tlv_ip_reach));
return (0);
}
if (prefix_len == -1)
ND_PRINT("%sIPv4 prefix: %s mask %s",
ident,
- ipaddr_string(ndo, (tlv_ip_reach->prefix)),
- ipaddr_string(ndo, (tlv_ip_reach->mask)));
+ GET_IPADDR_STRING(tlv_ip_reach->prefix),
+ GET_IPADDR_STRING(tlv_ip_reach->mask));
else
ND_PRINT("%sIPv4 prefix: %15s/%u",
ident,
- ipaddr_string(ndo, (tlv_ip_reach->prefix)),
+ GET_IPADDR_STRING(tlv_ip_reach->prefix),
prefix_len);
ND_PRINT(", Distribution: %s, Metric: %u, %s",
subl-=8;
}
break;
+ case ISIS_SUBTLV_EXTD_IP_REACH_PREFIX_SID:
+ {
+ uint8_t algo, flags;
+ uint32_t sid;
+
+ flags = GET_U_1(tptr);
+ algo = GET_U_1(tptr+1);
+
+ if (flags & ISIS_PREFIX_SID_FLAG_V) {
+ sid = GET_BE_U_3(tptr+2);
+ tptr+=5;
+ subl-=5;
+ } else {
+ sid = GET_BE_U_4(tptr+2);
+ tptr+=6;
+ subl-=6;
+ }
+
+ ND_PRINT(", Flags [%s], Algo %s (%u), %s %u",
+ bittok2str(prefix_sid_flag_values, "None", flags),
+ tok2str(prefix_sid_algo_values, "Unknown", algo), algo,
+ flags & ISIS_PREFIX_SID_FLAG_V ? "label" : "index",
+ sid);
+ }
+ break;
default:
if (!print_unknown_data(ndo, tptr, "\n\t\t ", subl))
return(0);
if (subtlv_sum_len) {
ND_PRINT(" (%u)", subtlv_sum_len);
/* prepend the indent string */
- nd_snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
+ snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
ident = ident_buffer;
while (subtlv_sum_len != 0) {
ND_TCHECK_2(tptr);
case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR:
case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR:
if (subtlv_len >= sizeof(nd_ipv4))
- ND_PRINT(", %s", ipaddr_string(ndo, tptr));
+ ND_PRINT(", %s", GET_IPADDR_STRING(tptr));
break;
case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW :
case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW:
if (afi == AF_INET)
ND_PRINT("%sIPv4 prefix: %15s/%u",
ident,
- ipaddr_string(ndo, prefix),
+ ipaddr_string(ndo, prefix), /* local buffer, not packet data; don't use GET_IPADDR_STRING() */
bit_length);
else if (afi == AF_INET6)
ND_PRINT("%sIPv6 prefix: %s/%u",
ident,
- ip6addr_string(ndo, prefix),
+ ip6addr_string(ndo, prefix), /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */
bit_length);
ND_PRINT(", Distribution: %s, Metric: %u",
subtlvlen=GET_U_1(tptr + 1);
tptr+=2;
/* prepend the indent string */
- nd_snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
+ snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
if (!isis_print_ip_reach_subtlv(ndo, tptr, subtlvtype, subtlvlen, ident_buffer))
return(0);
tptr+=subtlvlen;
return 0;
}
+static void
+isis_print_router_cap_subtlv(netdissect_options *ndo, const uint8_t *tptr, uint8_t tlen)
+{
+ uint8_t subt, subl;
+
+ while (tlen >= 2) {
+ ND_TCHECK_LEN(tptr, 2);
+ subt = GET_U_1(tptr);
+ subl = GET_U_1(tptr+1);
+ tlen -= 2;
+ tptr += 2;
+
+ /* first lets see if we know the subTLVs name*/
+ ND_PRINT("\n\t\t%s subTLV #%u, length: %u",
+ tok2str(isis_router_capability_subtlv_values, "unknown", subt),
+ subt, subl);
+
+ /*
+ * Boundary check.
+ */
+ if (subl > tlen) {
+ break;
+ }
+ ND_TCHECK_LEN(tptr, subl);
+
+ switch (subt) {
+ case ISIS_SUBTLV_ROUTER_CAP_SR:
+ {
+ uint8_t flags, sid_tlen, sid_type, sid_len;
+ uint32_t range;
+ const uint8_t *sid_ptr;
+
+ flags = GET_U_1(tptr);
+ range = GET_BE_U_3(tptr+1);
+ ND_PRINT(", Flags [%s], Range %u",
+ bittok2str(isis_router_capability_sr_flags, "None", flags),
+ range);
+ sid_ptr = tptr + 4;
+ sid_tlen = subl - 4;
+
+ while (sid_tlen >= 5) {
+ sid_type = GET_U_1(sid_ptr);
+ sid_len = GET_U_1(sid_ptr+1);
+ sid_tlen -= 2;
+ sid_ptr += 2;
+
+ /*
+ * Boundary check.
+ */
+ if (sid_len > sid_tlen) {
+ break;
+ }
+
+ switch (sid_type) {
+ case 1:
+ if (sid_len == 3) {
+ ND_PRINT(", SID value %u", GET_BE_U_3(sid_ptr));
+ } else if (sid_len == 4) {
+ ND_PRINT(", SID value %u", GET_BE_U_4(sid_ptr));
+ } else {
+ ND_PRINT(", Unknown SID length%u", sid_len);
+ }
+ break;
+ default:
+ print_unknown_data(ndo, sid_ptr, "\n\t\t ", sid_len);
+ }
+
+ sid_ptr += sid_len;
+ sid_tlen -= sid_len;
+ }
+ }
+ break;
+ default:
+ print_unknown_data(ndo, tptr, "\n\t\t", subl);
+ break;
+ }
+
+ tlen -= subl;
+ tptr += subl;
+ }
+ trunc:
+ return;
+}
+
/*
* Clear checksum and lifetime prior to signature verification.
*/
* Decode IS-IS packets. Return 0 on error.
*/
+#define INVALID_OR_DECREMENT(length,decr) \
+ if ((length) < (decr)) { \
+ ND_PRINT(" [packet length %u < %zu]", (length), (decr)); \
+ nd_print_invalid(ndo); \
+ return 1; \
+ } \
+ length -= (decr);
+
static int
isis_print(netdissect_options *ndo,
const uint8_t *p, u_int length)
const struct isis_tlv_es_reach *tlv_es_reach;
uint8_t version, pdu_version, fixed_len;
- uint8_t pdu_type, pdu_max_area, max_area, pdu_id_length, id_length, tlv_type, tlv_len, tlen, alen, lan_alen, prefix_len;
+ uint8_t pdu_type, pdu_max_area, max_area, pdu_id_length, id_length, tlv_type, tlv_len, tlen, alen, prefix_len;
u_int ext_is_len, ext_ip_len;
uint8_t mt_len;
uint8_t isis_subtlv_idrp;
const uint8_t *optr, *pptr, *tptr;
u_int packet_len;
u_short pdu_len, key_id;
- u_int i,vendor_id;
+ u_int i,vendor_id, num_vals;
uint8_t auth_type;
uint8_t num_system_ids;
int sigcheck;
case ISIS_PDU_L1_LAN_IIH:
case ISIS_PDU_L2_LAN_IIH:
if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) {
- ND_PRINT(", bogus fixed header length %u should be %lu",
- fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE));
+ ND_PRINT(", bogus fixed header length %u should be %zu",
+ fixed_len, ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
return (0);
}
ND_TCHECK_SIZE(header_iih_lan);
return (0);
}
- packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
+ INVALID_OR_DECREMENT(packet_len,ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
break;
case ISIS_PDU_PTP_IIH:
if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) {
- ND_PRINT(", bogus fixed header length %u should be %lu",
- fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE));
+ ND_PRINT(", bogus fixed header length %u should be %zu",
+ fixed_len, ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
return (0);
}
ND_TCHECK_SIZE(header_iih_ptp);
if (!print_unknown_data(ndo, pptr, "\n\t ", ISIS_IIH_PTP_HEADER_SIZE))
return (0);
}
-
- packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
+ INVALID_OR_DECREMENT(packet_len,ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
break;
case ISIS_PDU_L1_LSP:
case ISIS_PDU_L2_LSP:
if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) {
- ND_PRINT(", bogus fixed header length %u should be %lu",
- fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE);
+ ND_PRINT(", bogus fixed header length %u should be %zu",
+ fixed_len, ISIS_LSP_HEADER_SIZE);
return (0);
}
ND_TCHECK_SIZE(header_lsp);
return (0);
}
- packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE);
+ INVALID_OR_DECREMENT(packet_len,ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE);
pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE);
break;
case ISIS_PDU_L1_CSNP:
case ISIS_PDU_L2_CSNP:
if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) {
- ND_PRINT(", bogus fixed header length %u should be %lu",
- fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE));
+ ND_PRINT(", bogus fixed header length %u should be %zu",
+ fixed_len, ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
return (0);
}
ND_TCHECK_SIZE(header_csnp);
return (0);
}
- packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
+ INVALID_OR_DECREMENT(packet_len,ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
break;
case ISIS_PDU_L1_PSNP:
case ISIS_PDU_L2_PSNP:
if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) {
- ND_PRINT("- bogus fixed header length %u should be %lu",
- fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE));
+ ND_PRINT("- bogus fixed header length %u should be %zu",
+ fixed_len, ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
return (0);
}
ND_TCHECK_SIZE(header_psnp);
return (0);
}
- packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
+ INVALID_OR_DECREMENT(packet_len,ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
break;
ND_TCHECK_LEN(tptr, alen);
ND_PRINT("\n\t Area address (length: %u): %s",
alen,
- isonsap_string(ndo, tptr, alen));
+ GET_ISONSAP_STRING(tptr, alen));
tptr += alen;
tlen -= alen;
}
break;
case ISIS_TLV_ISNEIGH:
while (tlen != 0) {
- if (tlen < MAC_ADDR_LEN)
- goto tlv_trunc;
+ if (tlen < MAC_ADDR_LEN)
+ goto tlv_trunc;
ND_TCHECK_LEN(tptr, MAC_ADDR_LEN);
ND_PRINT("\n\t SNPA: %s", isis_print_id(ndo, tptr, MAC_ADDR_LEN));
tlen -= MAC_ADDR_LEN;
}
break;
- case ISIS_TLV_ISNEIGH_VARLEN:
- if (tlen < 1)
- goto tlv_trunc;
- ND_TCHECK_1(tptr);
- lan_alen = GET_U_1(tptr); /* LAN address length */
- tptr++;
- tlen--;
- if (lan_alen == 0) {
- ND_PRINT("\n\t LAN address length 0 bytes");
- nd_print_invalid(ndo);
- break;
- }
- ND_PRINT("\n\t LAN address length %u bytes ", lan_alen);
- while (tlen != 0) {
- if (tlen < lan_alen)
- goto tlv_trunc;
- ND_TCHECK_LEN(tptr, lan_alen);
- ND_PRINT("\n\t\tIS Neighbor: %s", isis_print_id(ndo, tptr, lan_alen));
- tlen -= lan_alen;
- tptr +=lan_alen;
+ case ISIS_TLV_INSTANCE_ID:
+ if (tlen < 4)
+ goto tlv_trunc;
+ num_vals = (tlen-2)/2;
+ ND_PRINT("\n\t Instance ID: %u, ITIDs(%u)%s ",
+ GET_BE_U_2(tptr), num_vals,
+ num_vals ? ":" : "");
+ tptr += 2;
+ tlen -= 2;
+ for (i=0; i < num_vals; i++) {
+ ND_PRINT("%u", GET_BE_U_2(tptr));
+ if (i < (num_vals - 1)) {
+ ND_PRINT(", ");
+ }
+ tptr += 2;
+ tlen -= 2;
}
break;
ND_TCHECK_LEN(tptr, sizeof(nd_ipv6));
ND_PRINT("\n\t IPv6 interface address: %s",
- ip6addr_string(ndo, tptr));
+ GET_IP6ADDR_STRING(tptr));
tptr += sizeof(nd_ipv6);
tlen -= sizeof(nd_ipv6);
if (tlen < sizeof(nd_ipv4))
goto tlv_trunc;
ND_TCHECK_LEN(pptr, sizeof(nd_ipv4));
- ND_PRINT("\n\t Traffic Engineering Router ID: %s", ipaddr_string(ndo, pptr));
+ ND_PRINT("\n\t Traffic Engineering Router ID: %s", GET_IPADDR_STRING(pptr));
break;
case ISIS_TLV_IPADDR:
if (tlen < sizeof(nd_ipv4))
goto tlv_trunc;
ND_TCHECK_LEN(tptr, sizeof(nd_ipv4));
- ND_PRINT("\n\t IPv4 interface address: %s", ipaddr_string(ndo, tptr));
+ ND_PRINT("\n\t IPv4 interface address: %s", GET_IPADDR_STRING(tptr));
tptr += sizeof(nd_ipv4);
tlen -= sizeof(nd_ipv4);
}
if (tlen < sizeof(nd_ipv4))
break;
ND_TCHECK_LEN(tptr, sizeof(nd_ipv4));
- ND_PRINT("\n\t IPv4 interface address: %s", ipaddr_string(ndo, tptr));
+ ND_PRINT("\n\t IPv4 interface address: %s", GET_IPADDR_STRING(tptr));
tptr+=sizeof(nd_ipv4);
tlen-=sizeof(nd_ipv4);
if (tlen < sizeof(nd_ipv4))
break;
ND_TCHECK_LEN(tptr, sizeof(nd_ipv4));
- ND_PRINT("\n\t IPv4 neighbor address: %s", ipaddr_string(ndo, tptr));
+ ND_PRINT("\n\t IPv4 neighbor address: %s", GET_IPADDR_STRING(tptr));
tptr+=sizeof(nd_ipv4);
tlen-=sizeof(nd_ipv4);
while (tlen != 0) {
- if (tlen < 4)
- goto tlv_trunc;
+ if (tlen < 4)
+ goto tlv_trunc;
ND_TCHECK_4(tptr);
ND_PRINT("\n\t Link-ID: 0x%08x", GET_BE_U_4(tptr));
tptr+=4;
case ISIS_TLV_LSP:
tlv_lsp = (const struct isis_tlv_lsp *)tptr;
while (tlen != 0) {
- if (tlen < sizeof(struct isis_tlv_lsp))
- goto tlv_trunc;
+ if (tlen < sizeof(struct isis_tlv_lsp))
+ goto tlv_trunc;
ND_TCHECK_1(tlv_lsp->lsp_id + LSP_ID_LEN - 1);
ND_PRINT("\n\t lsp-id: %s",
isis_print_id(ndo, tlv_lsp->lsp_id, LSP_ID_LEN));
break;
ND_TCHECK_LEN(tptr, prefix_len / 2);
ND_PRINT("\n\t\tAddress: %s/%u",
- isonsap_string(ndo, tptr, prefix_len / 2), prefix_len * 4);
+ GET_ISONSAP_STRING(tptr, prefix_len / 2), prefix_len * 4);
tptr+=prefix_len/2;
tlen-=prefix_len/2;
}
ND_PRINT("\n\t Sequence number: %u", GET_BE_U_4(tptr));
break;
+ case ISIS_TLV_ROUTER_CAPABILITY:
+ if (tlen < 5) {
+ ND_PRINT(" [object length %u < 5]", tlen);
+ nd_print_invalid(ndo);
+ break;
+ }
+ ND_TCHECK_5(tptr); /* router-id + flags */
+ ND_PRINT("\n\t Router-ID %s", GET_IPADDR_STRING(tptr));
+ ND_PRINT(", Flags [%s]",
+ bittok2str(isis_tlv_router_capability_flags, "none", GET_U_1(tptr+4)));
+
+ /* Optional set of sub-TLV */
+ if (tlen > 5) {
+ isis_print_router_cap_subtlv(ndo, tptr+5, tlen-5);
+ }
+ break;
+
case ISIS_TLV_VENDOR_PRIVATE:
if (tlen < 3)
break;
projects / tcpdump / blobdiff