static int
ospf_decode_v2(register const struct ospfhdr *op,
register const u_char *dataend)
{
register const struct in_addr *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->ospf_type) {
case OSPF_TYPE_UMD:
/*
* Rob Coltun's special monitoring packets;
* do nothing
*/
break;
case OSPF_TYPE_HELLO:
if (vflag) {
TCHECK(op->ospf_hello.hello_deadint);
ospf_print_bits(ospf_option_bits,
op->ospf_hello.hello_options);
printf(" mask %s int %d pri %d dead %u",
ipaddr_string(&op->ospf_hello.hello_mask),
ntohs(op->ospf_hello.hello_helloint),
op->ospf_hello.hello_priority,
(u_int32_t)ntohl(op->ospf_hello.hello_deadint));
}
TCHECK(op->ospf_hello.hello_dr);
if (op->ospf_hello.hello_dr.s_addr != 0)
printf(" dr %s",
ipaddr_string(&op->ospf_hello.hello_dr));
TCHECK(op->ospf_hello.hello_bdr);
if (op->ospf_hello.hello_bdr.s_addr != 0)
printf(" bdr %s",
ipaddr_string(&op->ospf_hello.hello_bdr));
if (vflag) {
printf(" nbrs");
ap = op->ospf_hello.hello_neighbor;
while ((u_char *)ap < dataend) {
TCHECK(*ap);
printf(" %s", ipaddr_string(ap));
++ap;
}
}
break; /* HELLO */
case OSPF_TYPE_DB:
TCHECK(op->ospf_db.db_options);
ospf_print_bits(ospf_option_bits, op->ospf_db.db_options);
sep = ' ';
TCHECK(op->ospf_db.db_flags);
if (op->ospf_db.db_flags & OSPF_DB_INIT) {
printf("%cI", sep);
sep = '/';
}
if (op->ospf_db.db_flags & OSPF_DB_MORE) {
printf("%cM", sep);
sep = '/';
}
if (op->ospf_db.db_flags & OSPF_DB_MASTER) {
printf("%cMS", sep);
sep = '/';
}
TCHECK(op->ospf_db.db_seq);
printf(" mtu %u S %X", ntohs(op->ospf_db.db_mtu),
(u_int32_t)ntohl(op->ospf_db.db_seq));
if (vflag) {
/* Print all the LS adv's */
lshp = op->ospf_db.db_lshdr;
while (!ospf_print_lshdr(lshp)) {
/* { (ctags) */
printf(" }");
++lshp;
}
}
break;
case OSPF_TYPE_LSR:
if (vflag) {
lsrp = op->ospf_lsr;
while ((u_char *)lsrp < dataend) {
TCHECK(*lsrp);
printf(" {"); /* } (ctags) */
ospf_print_ls_type(ntohl(lsrp->ls_type),
&lsrp->ls_stateid,
&lsrp->ls_router,
"LinkStateType %d");
/* { (ctags) */
printf(" }");
++lsrp;
}
}
break;
case OSPF_TYPE_LSU:
if (vflag) {
lsap = op->ospf_lsu.lsu_lsa;
TCHECK(op->ospf_lsu.lsu_count);
i = ntohl(op->ospf_lsu.lsu_count);
while (i--) {
if (ospf_print_lsa(lsap))
goto trunc;
lsap = (struct lsa *)((u_char *)lsap +
ntohs(lsap->ls_hdr.ls_length));
}
}
break;
case OSPF_TYPE_LSA:
if (vflag) {
lshp = op->ospf_lsa.lsa_lshdr;
while (!ospf_print_lshdr(lshp)) {
/* { (ctags) */
printf(" }");
++lshp;
}
}
break;
default:
printf("v2 type %d", op->ospf_type);
break;
}
return (0);
trunc:
return (1);
}
static int
ospf_decode_v2(register const struct ospfhdr *op,
register const u_char *dataend)
{
register const struct in_addr *ap;
register const struct lsr *lsrp;
register const struct lsa_hdr *lshp;
register const struct lsa *lsap;
register u_int32_t lsa_count,lsa_count_max;
switch (op->ospf_type) {
case OSPF_TYPE_UMD:
/*
* Rob Coltun's special monitoring packets;
* do nothing
*/
break;
case OSPF_TYPE_HELLO:
printf("\n\tOptions: [%s]",
bittok2str(ospf_option_values,"none",op->ospf_hello.hello_options));
TCHECK(op->ospf_hello.hello_deadint);
printf("\n\t Hello Timer: %us, Dead Timer %us, Mask: %s, Priority: %u",
EXTRACT_16BITS(&op->ospf_hello.hello_helloint),
EXTRACT_32BITS(&op->ospf_hello.hello_deadint),
ipaddr_string(&op->ospf_hello.hello_mask),
op->ospf_hello.hello_priority);
TCHECK(op->ospf_hello.hello_dr);
if (op->ospf_hello.hello_dr.s_addr != 0)
printf("\n\t Designated Router %s",
ipaddr_string(&op->ospf_hello.hello_dr));
TCHECK(op->ospf_hello.hello_bdr);
if (op->ospf_hello.hello_bdr.s_addr != 0)
printf(", Backup Designated Router %s",
ipaddr_string(&op->ospf_hello.hello_bdr));
ap = op->ospf_hello.hello_neighbor;
if ((u_char *)ap < dataend)
printf("\n\t Neighbor List:");
while ((u_char *)ap < dataend) {
TCHECK(*ap);
printf("\n\t %s", ipaddr_string(ap));
++ap;
}
break; /* HELLO */
case OSPF_TYPE_DD:
TCHECK(op->ospf_db.db_options);
printf("\n\tOptions: [%s]",
bittok2str(ospf_option_values,"none",op->ospf_db.db_options));
TCHECK(op->ospf_db.db_flags);
printf(", DD Flags: [%s]",
bittok2str(ospf_dd_flag_values,"none",op->ospf_db.db_flags));
if (vflag) {
/* Print all the LS adv's */
lshp = op->ospf_db.db_lshdr;
while (ospf_print_lshdr(lshp) != -1) {
++lshp;
}
}
break;
case OSPF_TYPE_LS_REQ:
lsrp = op->ospf_lsr;
while ((u_char *)lsrp < dataend) {
TCHECK(*lsrp);
printf("\n\t Advertising Router: %s, %s LSA (%u)",
ipaddr_string(&lsrp->ls_router),
tok2str(lsa_values,"unknown",EXTRACT_32BITS(lsrp->ls_type)),
EXTRACT_32BITS(&lsrp->ls_type));
switch (EXTRACT_32BITS(lsrp->ls_type)) {
/* the LSA header for opaque LSAs was slightly changed */
case LS_TYPE_OPAQUE_LL:
case LS_TYPE_OPAQUE_AL:
case LS_TYPE_OPAQUE_DW:
printf(", Opaque-Type: %s LSA (%u), Opaque-ID: %u",
tok2str(lsa_opaque_values, "unknown",lsrp->un_ls_stateid.opaque_field.opaque_type),
lsrp->un_ls_stateid.opaque_field.opaque_type,
EXTRACT_24BITS(&lsrp->un_ls_stateid.opaque_field.opaque_id));
break;
default:
printf(", LSA-ID: %s",
ipaddr_string(&lsrp->un_ls_stateid.ls_stateid));
break;
}
++lsrp;
}
break;
case OSPF_TYPE_LS_UPDATE:
lsap = op->ospf_lsu.lsu_lsa;
TCHECK(op->ospf_lsu.lsu_count);
lsa_count_max = EXTRACT_32BITS(&op->ospf_lsu.lsu_count);
printf(", %d LSA%s",lsa_count_max, lsa_count_max > 1 ? "s" : "");
for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) {
printf("\n\t LSA #%u",lsa_count);
lsap = (const struct lsa *)ospf_print_lsa(lsap);
if (lsap == NULL)
goto trunc;
}
break;
case OSPF_TYPE_LS_ACK:
lshp = op->ospf_lsa.lsa_lshdr;
while (ospf_print_lshdr(lshp) != -1) {
++lshp;
}
break;
default:
printf("v2 type (%d)", op->ospf_type);
break;
}
return (0);
trunc:
return (1);
}
/*
* Print a single link state advertisement. If truncated return 1, else 0.
*/
static int
ospf_print_lsa(register const struct lsa *lsap)
{
register const u_char *ls_end;
register const struct rlalink *rlp;
register const struct tos_metric *tosp;
register const struct in_addr *ap;
register const struct aslametric *almp;
register const struct mcla *mcp;
register const u_int32_t *lp;
register int j, k;
if (ospf_print_lshdr(&lsap->ls_hdr))
return (1);
TCHECK(lsap->ls_hdr.ls_length);
ls_end = (u_char *)lsap + ntohs(lsap->ls_hdr.ls_length);
switch (lsap->ls_hdr.ls_type) {
case LS_TYPE_ROUTER:
TCHECK(lsap->lsa_un.un_rla.rla_flags);
ospf_print_bits(ospf_rla_flag_bits,
lsap->lsa_un.un_rla.rla_flags);
TCHECK(lsap->lsa_un.un_rla.rla_count);
j = ntohs(lsap->lsa_un.un_rla.rla_count);
TCHECK(lsap->lsa_un.un_rla.rla_link);
rlp = lsap->lsa_un.un_rla.rla_link;
while (j--) {
TCHECK(*rlp);
printf(" {"); /* } (ctags) */
switch (rlp->link_type) {
case RLA_TYPE_VIRTUAL:
printf(" virt");
/* FALLTHROUGH */
case RLA_TYPE_ROUTER:
printf(" nbrid %s if %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
case RLA_TYPE_TRANSIT:
printf(" dr %s if %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
case RLA_TYPE_STUB:
printf(" net %s mask %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
default:
/* { (ctags) */
printf(" ??RouterLinksType %d?? }",
rlp->link_type);
return (0);
}
printf(" tos 0 metric %d", ntohs(rlp->link_tos0metric));
tosp = (struct tos_metric *)
((sizeof rlp->link_tos0metric) + (u_char *) rlp);
for (k = 0; k < (int) rlp->link_toscount; ++k, ++tosp) {
TCHECK(*tosp);
printf(" tos %d metric %d",
tosp->tos_type,
ntohs(tosp->tos_metric));
}
/* { (ctags) */
printf(" }");
rlp = (struct rlalink *)((u_char *)(rlp + 1) +
((rlp->link_toscount) * sizeof(*tosp)));
}
break;
case LS_TYPE_NETWORK:
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf(" mask %s rtrs",
ipaddr_string(&lsap->lsa_un.un_nla.nla_mask));
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_SUM_IP:
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf(" mask %s",
ipaddr_string(&lsap->lsa_un.un_sla.sla_mask));
/* FALLTHROUGH */
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 = ntohl(*lp);
printf(" tos %d metric %d",
(ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,
ul & SLA_MASK_METRIC);
++lp;
}
break;
case LS_TYPE_ASE:
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf(" mask %s",
ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));
TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
almp = lsap->lsa_un.un_asla.asla_metric;
while ((u_char *)almp < ls_end) {
register u_int32_t ul;
TCHECK(almp->asla_tosmetric);
ul = ntohl(almp->asla_tosmetric);
printf(" type %d tos %d metric %d",
(ul & ASLA_FLAG_EXTERNAL) ? 2 : 1,
(ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS,
(ul & ASLA_MASK_METRIC));
TCHECK(almp->asla_forward);
if (almp->asla_forward.s_addr) {
printf(" forward %s",
ipaddr_string(&almp->asla_forward));
}
TCHECK(almp->asla_tag);
if (almp->asla_tag) {
printf(" tag %u",
ntohl(almp->asla_tag));
}
++almp;
}
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 (ntohl(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??",
(u_int32_t)ntohl(mcp->mcla_vtype));
break;
}
++mcp;
}
}
/* { (ctags) */
fputs(" }", stdout);
return (0);
trunc:
fputs(" }", stdout);
return (1);
}
/*
* Print a single link state advertisement. If truncated or if LSA length
* field is less than the length of the LSA header, return NULl, else
* return pointer to data past end of LSA.
*/
static const u_int8_t *
ospf_print_lsa(register const struct lsa *lsap)
{
register const u_int8_t *ls_end;
register const struct rlalink *rlp;
register const struct tos_metric *tosp;
register const struct in_addr *ap;
register const struct aslametric *almp;
register const struct mcla *mcp;
register const u_int32_t *lp;
register int j, k, tlv_type, tlv_length, subtlv_type, subtlv_length, priority_level, te_class;
register int ls_length;
const u_int8_t *tptr;
int count_srlg;
union { /* int to float conversion buffer for several subTLVs */
float f;
u_int32_t i;
} bw;
tptr = (u_int8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */
ls_length = ospf_print_lshdr(&lsap->ls_hdr);
if (ls_length == -1)
return(NULL);
ls_end = (u_int8_t *)lsap + ls_length;
ls_length -= sizeof(struct lsa_hdr);
switch (lsap->ls_hdr.ls_type) {
case LS_TYPE_ROUTER:
TCHECK(lsap->lsa_un.un_rla.rla_flags);
printf("\n\t Router LSA Options: [%s]", bittok2str(ospf_rla_flag_values,"none",lsap->lsa_un.un_rla.rla_flags));
TCHECK(lsap->lsa_un.un_rla.rla_count);
j = EXTRACT_16BITS(&lsap->lsa_un.un_rla.rla_count);
TCHECK(lsap->lsa_un.un_rla.rla_link);
rlp = lsap->lsa_un.un_rla.rla_link;
while (j--) {
TCHECK(*rlp);
switch (rlp->link_type) {
case RLA_TYPE_VIRTUAL:
printf("\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
case RLA_TYPE_ROUTER:
printf("\n\t Neighbor Router-ID: %s, Interface Address: %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
case RLA_TYPE_TRANSIT:
printf("\n\t Neighbor Network-ID: %s, Interface Address: %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
case RLA_TYPE_STUB:
printf("\n\t Stub Network: %s, Mask: %s",
ipaddr_string(&rlp->link_id),
ipaddr_string(&rlp->link_data));
break;
default:
printf("\n\t Unknown Router Link Type (%u)",
rlp->link_type);
return (ls_end);
}
printf(", tos 0, metric: %d", EXTRACT_16BITS(&rlp->link_tos0metric));
tosp = (struct tos_metric *)
((sizeof rlp->link_tos0metric) + (u_char *) rlp);
for (k = 0; k < (int) rlp->link_toscount; ++k, ++tosp) {
TCHECK(*tosp);
printf(", tos %d, metric: %d",
tosp->tos_type,
EXTRACT_16BITS(&tosp->tos_metric));
}
rlp = (struct rlalink *)((u_char *)(rlp + 1) +
((rlp->link_toscount) * sizeof(*tosp)));
}
break;
case LS_TYPE_NETWORK:
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf("\n\t Mask %s\n\t Connected Routers:",
ipaddr_string(&lsap->lsa_un.un_nla.nla_mask));
ap = lsap->lsa_un.un_nla.nla_router;
while ((u_char *)ap < ls_end) {
TCHECK(*ap);
printf("\n\t %s", ipaddr_string(ap));
++ap;
}
break;
case LS_TYPE_SUM_IP:
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf("\n\t Mask %s",
ipaddr_string(&lsap->lsa_un.un_sla.sla_mask));
TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
lp = lsap->lsa_un.un_sla.sla_tosmetric;
/* suppress tos if its not supported */
if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) {
printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC);
break;
}
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_SUM_ABR:
TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
lp = lsap->lsa_un.un_sla.sla_tosmetric;
/* suppress tos if its not supported */
if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) {
printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC);
break;
}
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_ASE:
case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */
TCHECK(lsap->lsa_un.un_nla.nla_mask);
printf("\n\t Mask %s",
ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));
TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
almp = lsap->lsa_un.un_asla.asla_metric;
while ((u_char *)almp < ls_end) {
register u_int32_t ul;
TCHECK(almp->asla_tosmetric);
ul = EXTRACT_32BITS(&almp->asla_tosmetric);
printf(", type %d, tos %d metric:",
(ul & ASLA_FLAG_EXTERNAL) ? 2 : 1,
(ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS);
if ((ul & ASLA_MASK_METRIC)==0xffffff)
printf(" infinite");
else
printf(" %d", (ul & ASLA_MASK_METRIC));
TCHECK(almp->asla_forward);
if (almp->asla_forward.s_addr) {
printf(", forward %s",
ipaddr_string(&almp->asla_forward));
}
TCHECK(almp->asla_tag);
if (almp->asla_tag.s_addr) {
printf(", tag %s",
ipaddr_string(&almp->asla_tag));
}
++almp;
}
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("\n\t Router Router-ID %s",
ipaddr_string(&mcp->mcla_vid));
break;
case MCLA_VERTEX_NETWORK:
printf("\n\t Network Designated Router %s",
ipaddr_string(&mcp->mcla_vid));
break;
default:
printf("\n\t unknown VertexType (%u)",
EXTRACT_32BITS(&mcp->mcla_vtype));
break;
}
++mcp;
}
break;
case LS_TYPE_OPAQUE_LL: /* fall through */
case LS_TYPE_OPAQUE_AL:
case LS_TYPE_OPAQUE_DW:
switch (*(&lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) {
case LS_OPAQUE_TYPE_RI:
tptr = (u_int8_t *)(&lsap->lsa_un.un_ri_tlv.type);
while (ls_length != 0) {
TCHECK2(*tptr, 4);
if (ls_length < 4) {
printf("\n\t Remaining LS length %u < 4", ls_length);
return(ls_end);
}
tlv_type = EXTRACT_16BITS(tptr);
tlv_length = EXTRACT_16BITS(tptr+2);
tptr+=4;
ls_length-=4;
printf("\n\t %s TLV (%u), length: %u, value: ",
tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type),
tlv_type,
tlv_length);
if (tlv_length > ls_length) {
printf("\n\t Bogus length %u > %u", tlv_length,
ls_length);
return(ls_end);
}
ls_length-=tlv_length;
TCHECK2(*tptr, tlv_length);
switch(tlv_type) {
case LS_OPAQUE_RI_TLV_CAP:
if (tlv_length != 4) {
printf("\n\t Bogus length %u != 4", tlv_length);
return(ls_end);
}
printf("Capabilities: %s",
bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", EXTRACT_32BITS(tptr)));
break;
default:
if (vflag <= 1) {
if(!print_unknown_data(tptr,"\n\t ",tlv_length))
return(ls_end);
}
break;
}
tptr+=tlv_length;
}
break;
case LS_OPAQUE_TYPE_GRACE:
tptr = (u_int8_t *)(&lsap->lsa_un.un_grace_tlv.type);
while (ls_length != 0) {
TCHECK2(*tptr, 4);
if (ls_length < 4) {
printf("\n\t Remaining LS length %u < 4", ls_length);
return(ls_end);
}
tlv_type = EXTRACT_16BITS(tptr);
tlv_length = EXTRACT_16BITS(tptr+2);
tptr+=4;
ls_length-=4;
printf("\n\t %s TLV (%u), length: %u, value: ",
tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type),
tlv_type,
tlv_length);
if (tlv_length > ls_length) {
printf("\n\t Bogus length %u > %u", tlv_length,
ls_length);
return(ls_end);
}
ls_length-=tlv_length;
TCHECK2(*tptr, tlv_length);
switch(tlv_type) {
case LS_OPAQUE_GRACE_TLV_PERIOD:
if (tlv_length != 4) {
printf("\n\t Bogus length %u != 4", tlv_length);
return(ls_end);
}
printf("%us",EXTRACT_32BITS(tptr));
break;
case LS_OPAQUE_GRACE_TLV_REASON:
if (tlv_length != 1) {
printf("\n\t Bogus length %u != 1", tlv_length);
return(ls_end);
}
printf("%s (%u)",
tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", *tptr),
*tptr);
break;
case LS_OPAQUE_GRACE_TLV_INT_ADDRESS:
if (tlv_length != 4) {
printf("\n\t Bogus length %u != 4", tlv_length);
return(ls_end);
}
printf("%s", ipaddr_string(tptr));
break;
default:
if (vflag <= 1) {
if(!print_unknown_data(tptr,"\n\t ",tlv_length))
return(ls_end);
}
break;
}
tptr+=tlv_length;
}
break;
case LS_OPAQUE_TYPE_TE:
tptr = (u_int8_t *)(&lsap->lsa_un.un_te_lsa_tlv.type);
while (ls_length != 0) {
TCHECK2(*tptr, 4);
if (ls_length < 4) {
printf("\n\t Remaining LS length %u < 4", ls_length);
return(ls_end);
}
tlv_type = EXTRACT_16BITS(tptr);
tlv_length = EXTRACT_16BITS(tptr+2);
tptr+=4;
ls_length-=4;
printf("\n\t %s TLV (%u), length: %u",
tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type),
tlv_type,
tlv_length);
if (tlv_length > ls_length) {
printf("\n\t Bogus length %u > %u", tlv_length,
ls_length);
return(ls_end);
}
ls_length-=tlv_length;
switch(tlv_type) {
case LS_OPAQUE_TE_TLV_LINK:
while (tlv_length != 0) {
if (tlv_length < 4) {
printf("\n\t Remaining TLV length %u < 4",
tlv_length);
return(ls_end);
}
TCHECK2(*tptr, 4);
subtlv_type = EXTRACT_16BITS(tptr);
subtlv_length = EXTRACT_16BITS(tptr+2);
tptr+=4;
tlv_length-=4;
printf("\n\t %s subTLV (%u), length: %u",
tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type),
subtlv_type,
subtlv_length);
TCHECK2(*tptr, subtlv_length);
switch(subtlv_type) {
case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP:
printf(", 0x%08x", EXTRACT_32BITS(tptr));
break;
case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID:
case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID:
printf(", %s (0x%08x)",
ipaddr_string(tptr),
EXTRACT_32BITS(tptr));
if (subtlv_length == 8) /* draft-ietf-ccamp-ospf-gmpls-extensions */
printf(", %s (0x%08x)",
ipaddr_string(tptr+4),
EXTRACT_32BITS(tptr+4));
break;
case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP:
case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP:
printf(", %s", ipaddr_string(tptr));
break;
case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW:
case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW:
bw.i = EXTRACT_32BITS(tptr);
printf(", %.3f Mbps", bw.f*8/1000000 );
break;
case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW:
for (te_class = 0; te_class < 8; te_class++) {
bw.i = EXTRACT_32BITS(tptr+te_class*4);
printf("\n\t\tTE-Class %u: %.3f Mbps",
te_class,
bw.f*8/1000000 );
}
break;
case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS:
printf("\n\t\tBandwidth Constraints Model ID: %s (%u)",
tok2str(diffserv_te_bc_values, "unknown", *tptr),
*tptr);
/* decode BCs until the subTLV ends */
for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) {
bw.i = EXTRACT_32BITS(tptr+4+te_class*4);
printf("\n\t\t Bandwidth constraint CT%u: %.3f Mbps",
te_class,
bw.f*8/1000000 );
}
break;
case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC:
printf(", Metric %u", EXTRACT_32BITS(tptr));
break;
case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE:
printf(", %s, Priority %u",
bittok2str(gmpls_link_prot_values, "none", *tptr),
*(tptr+1));
break;
case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR:
printf("\n\t\tInterface Switching Capability: %s",
tok2str(gmpls_switch_cap_values, "Unknown", *(tptr)));
printf("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:",
tok2str(gmpls_encoding_values, "Unknown", *(tptr+1)));
for (priority_level = 0; priority_level < 8; priority_level++) {
bw.i = EXTRACT_32BITS(tptr+4+(priority_level*4));
printf("\n\t\t priority level %d: %.3f Mbps",
priority_level,
bw.f*8/1000000 );
}
break;
case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE:
printf(", %s (%u)",
tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",*tptr),
*tptr);
break;
case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP:
count_srlg = subtlv_length / 4;
if (count_srlg != 0)
printf("\n\t\t Shared risk group: ");
while (count_srlg > 0) {
bw.i = EXTRACT_32BITS(tptr);
printf("%d",bw.i);
tptr+=4;
count_srlg--;
if (count_srlg > 0)
printf(", ");
}
break;
default:
if (vflag <= 1) {
if(!print_unknown_data(tptr,"\n\t\t",subtlv_length))
return(ls_end);
}
break;
}
/* in OSPF everything has to be 32-bit aligned, including TLVs */
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) {
printf("\n\t TLV length %u < 4", tlv_length);
return(ls_end);
}
TCHECK2(*tptr, 4);
printf(", %s", ipaddr_string(tptr));
break;
default:
if (vflag <= 1) {
if(!print_unknown_data(tptr,"\n\t ",tlv_length))
return(ls_end);
}
break;
}
tptr+=tlv_length;
}
break;
}
break;
default:
if (vflag <= 1) {
if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown,
"\n\t ", ls_length))
return(ls_end);
}
break;
}
/* do we want to see an additionally hexdump ? */
if (vflag> 1)
if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown,
"\n\t ", ls_length)) {
return(ls_end);
}
return (ls_end);
trunc:
return (NULL);
}
