*/
-#define NETDISSECT_REWORKED
+/* \summary: IPv6 Open Shortest Path First (OSPFv3) printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"
ospf6_print_lshdr(netdissect_options *ndo,
register const struct lsa6_hdr *lshp, const u_char *dataend)
{
- if ((u_char *)(lshp + 1) > dataend)
+ if ((const u_char *)(lshp + 1) > dataend)
goto trunc;
ND_TCHECK(lshp->ls_type);
ND_TCHECK(lshp->ls_seq);
ND_PRINT((ndo, "\n\t Advertising Router %s, seq 0x%08x, age %us, length %u",
ipaddr_string(ndo, &lshp->ls_router),
- EXTRACT_32BITS(&lshp->ls_seq),
- EXTRACT_16BITS(&lshp->ls_age),
- EXTRACT_16BITS(&lshp->ls_length)-(u_int)sizeof(struct lsa6_hdr)));
+ EXTRACT_BE_U_4(&lshp->ls_seq),
+ EXTRACT_BE_U_2(&lshp->ls_age),
+ EXTRACT_BE_U_2(&lshp->ls_length)-(u_int)sizeof(struct lsa6_hdr)));
- ospf6_print_ls_type(ndo, EXTRACT_16BITS(&lshp->ls_type), &lshp->ls_stateid);
+ ospf6_print_ls_type(ndo, EXTRACT_BE_U_2(&lshp->ls_type),
+ &lshp->ls_stateid);
return (0);
trunc:
ospf6_print_lsaprefix(netdissect_options *ndo,
const uint8_t *tptr, u_int lsa_length)
{
- const struct lsa6_prefix *lsapp = (struct lsa6_prefix *)tptr;
+ const struct lsa6_prefix *lsapp = (const struct lsa6_prefix *)tptr;
u_int wordlen;
struct in6_addr prefix;
bittok2str(ospf6_lsa_prefix_option_values,
"none", lsapp->lsa_p_opt)));
}
- ND_PRINT((ndo, ", metric %u", EXTRACT_16BITS(&lsapp->lsa_p_metric)));
+ ND_PRINT((ndo, ", metric %u", EXTRACT_BE_U_2(&lsapp->lsa_p_metric)));
return sizeof(*lsapp) - IPV6_ADDR_LEN_BYTES + wordlen * 4;
trunc:
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);
+ length = EXTRACT_BE_U_2(&lsap->ls_hdr.ls_length);
/*
* The LSA length includes the length of the header;
* If it does, find the length of what follows the
* header.
*/
- if (length < sizeof(struct lsa6_hdr) || (u_char *)lsap + length > dataend)
+ if (length < sizeof(struct lsa6_hdr) || (const u_char *)lsap + length > dataend)
return (1);
lsa_length = length - sizeof(struct lsa6_hdr);
- tptr = (uint8_t *)lsap+sizeof(struct lsa6_hdr);
+ tptr = (const uint8_t *)lsap+sizeof(struct lsa6_hdr);
- switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) {
+ switch (EXTRACT_BE_U_2(&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);
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))));
+ EXTRACT_BE_U_4(&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->link_type));
return (0);
}
- ND_PRINT((ndo, ", metric %d", EXTRACT_16BITS(&rlp->link_metric)));
+ ND_PRINT((ndo, ", metric %d", EXTRACT_BE_U_2(&rlp->link_metric)));
rlp++;
}
break;
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))));
+ EXTRACT_BE_U_4(&lsap->lsa_un.un_nla.nla_options))));
ND_PRINT((ndo, "\n\t Connected Routers:"));
ap = lsap->lsa_un.un_nla.nla_router;
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));
+ EXTRACT_BE_U_4(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC));
- tptr = (uint8_t *)lsap->lsa_un.un_inter_ap.inter_ap_prefix;
+ 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)
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);
+ flags32 = EXTRACT_BE_U_4(&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) &
+ EXTRACT_BE_U_4(&lsap->lsa_un.un_asla.asla_metric) &
ASLA_MASK_METRIC));
- tptr = (uint8_t *)lsap->lsa_un.un_asla.asla_prefix;
- lsapp = (struct lsa6_prefix *)tptr;
+ 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;
tptr += bytelen;
if ((flags32 & ASLA_FLAG_FWDADDR) != 0) {
- struct in6_addr *fwdaddr6;
+ const struct in6_addr *fwdaddr6;
- fwdaddr6 = (struct in6_addr *)tptr;
+ fwdaddr6 = (const struct in6_addr *)tptr;
if (lsa_length < sizeof (*fwdaddr6))
return (1);
lsa_length -= sizeof (*fwdaddr6);
if (lsa_length < sizeof (uint32_t))
return (1);
lsa_length -= sizeof (uint32_t);
- ND_TCHECK(*(uint32_t *)tptr);
+ ND_TCHECK(*(const uint32_t *)tptr);
ND_PRINT((ndo, " tag %s",
- ipaddr_string(ndo, (uint32_t *)tptr)));
+ ipaddr_string(ndo, (const uint32_t *)tptr)));
tptr += sizeof(uint32_t);
}
if (lsa_length < sizeof (uint32_t))
return (1);
lsa_length -= sizeof (uint32_t);
- ND_TCHECK(*(uint32_t *)tptr);
+ ND_TCHECK(*(const uint32_t *)tptr);
ND_PRINT((ndo, " RefLSID: %s",
- ipaddr_string(ndo, (uint32_t *)tptr)));
+ ipaddr_string(ndo, (const uint32_t *)tptr)));
tptr += sizeof(uint32_t);
}
break;
ND_TCHECK(llsap->llsa_priandopt);
ND_PRINT((ndo, "\n\t Options [%s]",
bittok2str(ospf6_option_values, "none",
- EXTRACT_32BITS(&llsap->llsa_options))));
+ EXTRACT_BE_U_4(&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_TCHECK(llsap->llsa_nprefix);
+ prefixes = EXTRACT_BE_U_4(&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 = (uint8_t *)llsap->llsa_prefix;
+ tptr = (const uint8_t *)llsap->llsa_prefix;
while (prefixes > 0) {
bytelen = ospf6_print_lsaprefix(ndo, tptr, lsa_length);
if (bytelen < 0)
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),
+ EXTRACT_BE_U_2(&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);
+ prefixes = EXTRACT_BE_U_2(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
ND_PRINT((ndo, "\n\t Prefixes %d:", prefixes));
- tptr = (uint8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix;
+ 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)
switch (op->ospf6_type) {
case OSPF_TYPE_HELLO: {
- register const struct hello6 *hellop = (const struct hello6 *)((uint8_t *)op + OSPF6HDR_LEN);
+ register const struct hello6 *hellop = (const struct hello6 *)((const uint8_t *)op + OSPF6HDR_LEN);
+ ND_TCHECK_4(&hellop->hello_options);
ND_PRINT((ndo, "\n\tOptions [%s]",
bittok2str(ospf6_option_values, "none",
- EXTRACT_32BITS(&hellop->hello_options))));
+ EXTRACT_BE_U_4(&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),
+ EXTRACT_BE_U_2(&hellop->hello_helloint),
+ EXTRACT_BE_U_2(&hellop->hello_deadint),
ipaddr_string(ndo, &hellop->hello_ifid),
hellop->hello_priority));
ND_TCHECK(hellop->hello_dr);
- if (EXTRACT_32BITS(&hellop->hello_dr) != 0)
+ if (EXTRACT_BE_U_4(&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)
+ if (EXTRACT_BE_U_4(&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 ((u_char *)ap < dataend) {
+ while ((const u_char *)ap < dataend) {
ND_TCHECK(*ap);
ND_PRINT((ndo, "\n\t %s", ipaddr_string(ndo, ap)));
++ap;
}
case OSPF_TYPE_DD: {
- register const struct dd6 *ddp = (const struct dd6 *)((uint8_t *)op + OSPF6HDR_LEN);
+ 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))));
+ EXTRACT_BE_U_4(&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)));
+ EXTRACT_BE_U_2(&ddp->db_mtu),
+ EXTRACT_BE_U_4(&ddp->db_seq)));
if (ndo->ndo_vflag > 1) {
/* Print all the LS adv's */
lshp = ddp->db_lshdr;
- while ((u_char *)lshp < dataend) {
+ while ((const u_char *)lshp < dataend) {
if (ospf6_print_lshdr(ndo, lshp++, dataend))
goto trunc;
}
case OSPF_TYPE_LS_REQ:
if (ndo->ndo_vflag > 1) {
- lsrp = (const struct lsr6 *)((uint8_t *)op + OSPF6HDR_LEN);
- while ((u_char *)lsrp < dataend) {
+ 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),
+ ospf6_print_ls_type(ndo,
+ EXTRACT_BE_U_2(&lsrp->ls_type),
&lsrp->ls_stateid);
++lsrp;
}
case OSPF_TYPE_LS_UPDATE:
if (ndo->ndo_vflag > 1) {
- register const struct lsu6 *lsup = (const struct lsu6 *)((uint8_t *)op + OSPF6HDR_LEN);
+ 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);
+ i = EXTRACT_BE_U_4(&lsup->lsu_count);
lsap = lsup->lsu_lsa;
- while ((u_char *)lsap < dataend && i--) {
+ while ((const u_char *)lsap < dataend && i--) {
if (ospf6_print_lsa(ndo, lsap, dataend))
goto trunc;
- lsap = (struct lsa6 *)((u_char *)lsap +
- EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
+ lsap = (const struct lsa6 *)((const u_char *)lsap +
+ EXTRACT_BE_U_2(&lsap->ls_hdr.ls_length));
}
}
break;
case OSPF_TYPE_LS_ACK:
if (ndo->ndo_vflag > 1) {
- lshp = (const struct lsa6_hdr *)((uint8_t *)op + OSPF6HDR_LEN);
- while ((u_char *)lshp < dataend) {
+ 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;
}
if (len < OSPF_LLS_HDRLEN)
goto trunc;
/* Checksum */
- ND_TCHECK2(*cp, 2);
- ND_PRINT((ndo, "\n\tLLS Checksum 0x%04x", EXTRACT_16BITS(cp)));
+ ND_TCHECK_2(cp);
+ ND_PRINT((ndo, "\n\tLLS Checksum 0x%04x", EXTRACT_BE_U_2(cp)));
cp += 2;
/* LLS Data Length */
- ND_TCHECK2(*cp, 2);
- llsdatalen = EXTRACT_16BITS(cp);
+ ND_TCHECK_2(cp);
+ llsdatalen = EXTRACT_BE_U_2(cp);
ND_PRINT((ndo, ", Data Length %u", llsdatalen));
if (llsdatalen < OSPF_LLS_HDRLEN || llsdatalen > len)
goto trunc;
if (len < OSPF6_AT_HDRLEN)
goto trunc;
/* Authentication Type */
- ND_TCHECK2(*cp, 2);
- ND_PRINT((ndo, "\n\tAuthentication Type %s", tok2str(ospf6_auth_type_str, "unknown (0x%04x)", EXTRACT_16BITS(cp))));
+ ND_TCHECK_2(cp);
+ ND_PRINT((ndo, "\n\tAuthentication Type %s", tok2str(ospf6_auth_type_str, "unknown (0x%04x)", EXTRACT_BE_U_2(cp))));
cp += 2;
/* Auth Data Len */
- ND_TCHECK2(*cp, 2);
- authdatalen = EXTRACT_16BITS(cp);
+ ND_TCHECK_2(cp);
+ authdatalen = EXTRACT_BE_U_2(cp);
ND_PRINT((ndo, ", Length %u", authdatalen));
if (authdatalen < OSPF6_AT_HDRLEN || authdatalen > len)
goto trunc;
cp += 2;
/* Reserved */
- ND_TCHECK2(*cp, 2);
+ ND_TCHECK_2(cp);
cp += 2;
/* Security Association ID */
- ND_TCHECK2(*cp, 2);
- ND_PRINT((ndo, ", SAID %u", EXTRACT_16BITS(cp)));
+ ND_TCHECK_2(cp);
+ ND_PRINT((ndo, ", SAID %u", EXTRACT_BE_U_2(cp)));
cp += 2;
/* Cryptographic Sequence Number (High-Order 32 Bits) */
- ND_TCHECK2(*cp, 4);
- ND_PRINT((ndo, ", CSN 0x%08x", EXTRACT_32BITS(cp)));
+ ND_TCHECK_4(cp);
+ ND_PRINT((ndo, ", CSN 0x%08x", EXTRACT_BE_U_4(cp)));
cp += 4;
/* Cryptographic Sequence Number (Low-Order 32 Bits) */
- ND_TCHECK2(*cp, 4);
- ND_PRINT((ndo, ":%08x", EXTRACT_32BITS(cp)));
+ ND_TCHECK_4(cp);
+ ND_PRINT((ndo, ":%08x", EXTRACT_BE_U_4(cp)));
cp += 4;
/* Authentication Data */
ND_TCHECK2(*cp, authdatalen - OSPF6_AT_HDRLEN);
int lls_dd = 0;
if (op->ospf6_type == OSPF_TYPE_HELLO) {
- const struct hello6 *hellop = (const struct hello6 *)((uint8_t *)op + OSPF6HDR_LEN);
- if (EXTRACT_32BITS(&hellop->hello_options) & OSPF6_OPTION_L)
+ const struct hello6 *hellop = (const struct hello6 *)((const uint8_t *)op + OSPF6HDR_LEN);
+ ND_TCHECK(hellop->hello_options);
+ if (EXTRACT_BE_U_4(&hellop->hello_options) & OSPF6_OPTION_L)
lls_hello = 1;
} else if (op->ospf6_type == OSPF_TYPE_DD) {
- const struct dd6 *ddp = (const struct dd6 *)((uint8_t *)op + OSPF6HDR_LEN);
- if (EXTRACT_32BITS(&ddp->db_options) & OSPF6_OPTION_L)
+ const struct dd6 *ddp = (const struct dd6 *)((const uint8_t *)op + OSPF6HDR_LEN);
+ ND_TCHECK(ddp->db_options);
+ if (EXTRACT_BE_U_4(&ddp->db_options) & OSPF6_OPTION_L)
lls_dd = 1;
}
if ((lls_hello || lls_dd) && (llslen = ospf6_print_lls(ndo, cp, len)) < 0)
register const char *cp;
uint16_t datalen;
- op = (struct ospf6hdr *)bp;
+ op = (const struct ospf6hdr *)bp;
/* If the type is valid translate it, or just print the type */
/* value. If it's not valid, say so and return */
/* OSPFv3 data always comes first and optional trailing data may follow. */
ND_TCHECK(op->ospf6_len);
- datalen = EXTRACT_16BITS(&op->ospf6_len);
+ datalen = EXTRACT_BE_U_2(&op->ospf6_len);
if (datalen > length) {
ND_PRINT((ndo, " [len %d]", datalen));
return;
ND_PRINT((ndo, "\n\tRouter-ID %s", ipaddr_string(ndo, &op->ospf6_routerid)));
ND_TCHECK(op->ospf6_areaid);
- if (EXTRACT_32BITS(&op->ospf6_areaid) != 0)
+ if (EXTRACT_BE_U_4(&op->ospf6_areaid) != 0)
ND_PRINT((ndo, ", Area %s", ipaddr_string(ndo, &op->ospf6_areaid)));
else
ND_PRINT((ndo, ", Backbone Area"));
projects / tcpdump / blobdiff