/* \summary: IPv6 Open Shortest Path First (OSPFv3) printer */
-#ifdef HAVE_CONFIG_H
#include <config.h>
-#endif
#include "netdissect-stdinc.h"
#define RLA_FLAG_E 0x02
#define RLA_FLAG_V 0x04
#define RLA_FLAG_W 0x08
-#define RLA_FLAG_N 0x10
+#define RLA_FLAG_Nt 0x10
/* lsa_prefix options */
#define LSA_PREFIX_OPT_NU 0x01
#define LSA_PREFIX_OPT_MC 0x04
#define LSA_PREFIX_OPT_P 0x08
#define LSA_PREFIX_OPT_DN 0x10
+#define LSA_PREFIX_OPT_N 0x20
/* sla_tosmetric breakdown */
#define SLA_MASK_TOS 0x7f000000
{ RLA_FLAG_B, "ABR" },
{ RLA_FLAG_E, "External" },
{ RLA_FLAG_V, "Virtual-Link Endpoint" },
- { RLA_FLAG_W, "Wildcard Receiver" },
- { RLA_FLAG_N, "NSSA Translator" },
+ { RLA_FLAG_W, "Deprecated" },
+ { RLA_FLAG_Nt, "NSSA Translator" },
{ 0, NULL }
};
{ LSA_PREFIX_OPT_MC, "Deprecated" },
{ LSA_PREFIX_OPT_P, "Propagate" },
{ LSA_PREFIX_OPT_DN, "Down" },
+ { LSA_PREFIX_OPT_N, "N-bit" },
{ 0, NULL }
};
ls_type & LS_TYPE_MASK,
tok2str(ospf6_ls_scope_values, "Unknown", ls_type & LS_SCOPE_MASK),
ls_type &0x8000 ? ", transitive" : "", /* U-bit */
- GET_IPADDR_STRING((const u_char *)ls_stateid));
+ GET_IPADDR_STRING(ls_stateid));
}
static int
ospf6_print_lshdr(netdissect_options *ndo,
const struct lsa6_hdr *lshp, const u_char *dataend)
{
+ u_int ls_length;
+
if ((const u_char *)(lshp + 1) > dataend)
goto trunc;
- ND_TCHECK_4(lshp->ls_router);
- ND_PRINT("\n\t Advertising Router %s, seq 0x%08x, age %us, length %u",
- GET_IPADDR_STRING(lshp->ls_router),
- GET_BE_U_4(lshp->ls_seq),
- GET_BE_U_2(lshp->ls_age),
- GET_BE_U_2(lshp->ls_length)-(u_int)sizeof(struct lsa6_hdr));
+ ls_length = GET_BE_U_2(lshp->ls_length);
+ if (ls_length < sizeof(struct lsa_hdr)) {
+ ND_PRINT("\n\t Bogus length %u < header (%zu)", ls_length,
+ sizeof(struct lsa_hdr));
+ goto trunc;
+ }
+
+ ND_PRINT("\n\t Advertising Router %s, seq 0x%08x, age %us, length %zu",
+ GET_IPADDR_STRING(lshp->ls_router),
+ GET_BE_U_4(lshp->ls_seq),
+ GET_BE_U_2(lshp->ls_age),
+ ls_length-sizeof(struct lsa6_hdr));
ospf6_print_ls_type(ndo, GET_BE_U_2(lshp->ls_type),
&lshp->ls_stateid);
if (lsa_length < wordlen * 4)
goto trunc;
lsa_length -= wordlen * 4;
- ND_TCHECK_LEN(lsapp->lsa_p_prefix, wordlen * 4);
memset(prefix, 0, sizeof(prefix));
- memcpy(prefix, lsapp->lsa_p_prefix, wordlen * 4);
+ GET_CPY_BYTES(prefix, lsapp->lsa_p_prefix, wordlen * 4);
ND_PRINT("\n\t\t%s/%u", ip6addr_string(ndo, prefix), /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */
GET_U_1(lsapp->lsa_p_len));
if (GET_U_1(lsapp->lsa_p_opt)) {
if (lsa_length < sizeof (*ap))
return (1);
lsa_length -= sizeof (*ap);
- ND_TCHECK_SIZE(ap);
- ND_PRINT("\n\t\t%s", GET_IPADDR_STRING(*ap));
+ ND_PRINT("\n\t\t%s", GET_IPADDR_STRING(ap));
++ap;
}
break;
if (lsa_length < sizeof (uint32_t))
return (1);
lsa_length -= sizeof (uint32_t);
- ND_TCHECK_4(tptr);
ND_PRINT(" tag %s",
GET_IPADDR_STRING(tptr));
tptr += sizeof(uint32_t);
if (lsa_length < sizeof (uint32_t))
return (1);
lsa_length -= sizeof (uint32_t);
- ND_TCHECK_4(tptr);
ND_PRINT(" RefLSID: %s",
GET_IPADDR_STRING(tptr));
tptr += sizeof(uint32_t);
prefixes);
tptr = (const uint8_t *)llsap->llsa_prefix;
- while (prefixes > 0) {
+ while (prefixes != 0) {
bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length);
if (bytelen < 0)
goto trunc;
ND_PRINT("\n\t Prefixes %u:", prefixes);
tptr = (const uint8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix;
- while (prefixes > 0) {
+ while (prefixes != 0) {
bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length);
if (bytelen < 0)
goto trunc;
const struct lsr6 *lsrp;
const struct lsa6_hdr *lshp;
const struct lsa6 *lsap;
- int i;
+ uint32_t i;
switch (GET_U_1(op->ospf6_type)) {
ND_PRINT("\n\t Neighbor List:");
ap = hellop->hello_neighbor;
while ((const u_char *)ap < dataend) {
- ND_TCHECK_SIZE(ap);
- ND_PRINT("\n\t %s", GET_IPADDR_STRING(*ap));
+ ND_PRINT("\n\t %s", GET_IPADDR_STRING(ap));
++ap;
}
}
}
dataend = bp + datalen;
- ND_TCHECK_4(op->ospf6_routerid);
ND_PRINT("\n\tRouter-ID %s", GET_IPADDR_STRING(op->ospf6_routerid));
if (GET_BE_U_4(op->ospf6_areaid) != 0)