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-rw-r--r--contrib/tcpdump/print-ospf.c892
1 files changed, 452 insertions, 440 deletions
diff --git a/contrib/tcpdump/print-ospf.c b/contrib/tcpdump/print-ospf.c
index 70d8701..44e8737 100644
--- a/contrib/tcpdump/print-ospf.c
+++ b/contrib/tcpdump/print-ospf.c
@@ -22,8 +22,8 @@
*/
#ifndef lint
-static char rcsid[] =
- "@(#) $Header: print-ospf.c,v 1.19 96/07/14 19:39:03 leres Exp $ (LBL)";
+static const char rcsid[] =
+ "@(#) $Header: print-ospf.c,v 1.23 96/12/10 23:15:46 leres Exp $ (LBL)";
#endif
#include <sys/param.h>
@@ -44,8 +44,8 @@ static char rcsid[] =
#include "ospf.h"
struct bits {
- u_int32_t bit;
- const char *str;
+ u_int32_t bit;
+ const char *str;
};
static const struct bits ospf_option_bits[] = {
@@ -63,506 +63,518 @@ static const struct bits ospf_rla_flag_bits[] = {
{ 0, NULL }
};
-static const char *ospf_types[OSPF_TYPE_MAX] = {
- (char *) 0,
- "hello",
- "dd",
- "ls_req",
- "ls_upd",
- "ls_ack"
+static struct tok type2str[] = {
+ { OSPF_TYPE_UMD, "umd" },
+ { OSPF_TYPE_HELLO, "hello" },
+ { OSPF_TYPE_DB, "dd" },
+ { OSPF_TYPE_LSR, "ls_req" },
+ { OSPF_TYPE_LSU, "ls_upd" },
+ { OSPF_TYPE_LSA, "ls_ack" },
+ { 0, NULL }
};
+static char tstr[] = " [|ospf]";
+
+/* Forwards */
+static inline void ospf_print_seqage(u_int32_t, time_t);
+static inline void ospf_print_bits(const struct bits *, u_char);
+static void ospf_print_ls_type(u_int, const struct in_addr *,
+ const struct in_addr *, const char *);
+static int ospf_print_lshdr(const struct lsa_hdr *);
+static int ospf_print_lsa(const struct lsa *);
+static int ospf_decode_v2(const struct ospfhdr *, const u_char *);
+
static inline void
ospf_print_seqage(register u_int32_t seq, register time_t us)
{
- register time_t sec = us % 60;
- register time_t mins = (us / 60) % 60;
- register time_t hour = us/3600;
-
- printf(" S %X age ", seq);
- if (hour) {
- printf("%u:%02u:%02u",
- (u_int32_t)hour,
- (u_int32_t)mins,
- (u_int32_t)sec);
- } else if (mins) {
- printf("%u:%02u",
- (u_int32_t)mins,
- (u_int32_t)sec);
- } else {
- printf("%u",
- (u_int32_t)sec);
- }
+ register time_t sec = us % 60;
+ register time_t mins = (us / 60) % 60;
+ register time_t hour = us / 3600;
+
+ printf(" S %X age ", seq);
+ if (hour)
+ printf("%u:%02u:%02u",
+ (u_int32_t) hour, (u_int32_t) mins, (u_int32_t) sec);
+ else if (mins)
+ printf("%u:%02u", (u_int32_t) mins, (u_int32_t) sec);
+ else
+ printf("%u", (u_int32_t) sec);
}
static inline void
ospf_print_bits(register const struct bits *bp, register u_char options)
{
- char sep = ' ';
-
- do {
- if (options & bp->bit) {
- printf("%c%s",
- sep,
- bp->str);
- sep = '/';
- }
- } while ((++bp)->bit) ;
+ register char sep = ' ';
+
+ do {
+ if (options & bp->bit) {
+ printf("%c%s", sep, bp->str);
+ sep = '/';
+ }
+ } while ((++bp)->bit);
}
+static void
+ospf_print_ls_type(register u_int ls_type,
+ register const struct in_addr *ls_stateid,
+ register const struct in_addr *ls_router, register const char *fmt)
+{
-#define LS_PRINT(lsp, type) switch (type) { \
- case LS_TYPE_ROUTER: \
- printf(" rtr %s ", ipaddr_string(&lsp->ls_router)); break; \
- case LS_TYPE_NETWORK: \
- printf(" net dr %s if %s", ipaddr_string(&lsp->ls_router), ipaddr_string(&lsp->ls_stateid)); break; \
- case LS_TYPE_SUM_IP: \
- printf(" sum %s abr %s", ipaddr_string(&lsp->ls_stateid), ipaddr_string(&lsp->ls_router)); break; \
- case LS_TYPE_SUM_ABR: \
- printf(" abr %s rtr %s", ipaddr_string(&lsp->ls_router), ipaddr_string(&lsp->ls_stateid)); break; \
- case LS_TYPE_ASE: \
- printf(" ase %s asbr %s", ipaddr_string(&lsp->ls_stateid), ipaddr_string(&lsp->ls_router)); break; \
- case LS_TYPE_GROUP: \
- printf(" group %s rtr %s", ipaddr_string(&lsp->ls_stateid), ipaddr_string(&lsp->ls_router)); break; \
- }
+ switch (ls_type) {
-static int
-ospf_print_lshdr(register const struct lsa_hdr *lshp, const caddr_t end)
-{
- if ((caddr_t) (lshp + 1) > end) {
- return 1;
- }
+ case LS_TYPE_ROUTER:
+ printf(" rtr %s ", ipaddr_string(ls_router));
+ break;
+
+ case LS_TYPE_NETWORK:
+ printf(" net dr %s if %s",
+ ipaddr_string(ls_router),
+ ipaddr_string(ls_stateid));
+ break;
- printf(" {"); /* } (ctags) */
+ case LS_TYPE_SUM_IP:
+ printf(" sum %s abr %s",
+ ipaddr_string(ls_stateid),
+ ipaddr_string(ls_router));
+ break;
+
+ case LS_TYPE_SUM_ABR:
+ printf(" abr %s rtr %s",
+ ipaddr_string(ls_router),
+ ipaddr_string(ls_stateid));
+ break;
+
+ case LS_TYPE_ASE:
+ printf(" ase %s asbr %s",
+ ipaddr_string(ls_stateid),
+ ipaddr_string(ls_router));
+ break;
+
+ case LS_TYPE_GROUP:
+ printf(" group %s rtr %s",
+ ipaddr_string(ls_stateid),
+ ipaddr_string(ls_router));
+ break;
+
+ default:
+ putchar(' ');
+ printf(fmt, ls_type);
+ break;
+ }
+}
- if (!lshp->ls_type || lshp->ls_type >= LS_TYPE_MAX) {
- printf(" ??LS type %d?? }", lshp->ls_type); /* { (ctags) */
- return 1;
- }
+static int
+ospf_print_lshdr(register const struct lsa_hdr *lshp)
+{
- ospf_print_bits(ospf_option_bits, lshp->ls_options);
- ospf_print_seqage(ntohl(lshp->ls_seq), ntohs(lshp->ls_age));
+ TCHECK(lshp->ls_type);
+ printf(" {"); /* } (ctags) */
- LS_PRINT(lshp, lshp->ls_type);
+ TCHECK(lshp->ls_options);
+ ospf_print_bits(ospf_option_bits, lshp->ls_options);
+ TCHECK(lshp->ls_seq);
+ ospf_print_seqage(ntohl(lshp->ls_seq), ntohs(lshp->ls_age));
+ ospf_print_ls_type(lshp->ls_type, &lshp->ls_stateid, &lshp->ls_router,
+ "ls_type %d");
- return 0;
+ 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, const caddr_t end)
+ospf_print_lsa(register const struct lsa *lsap)
{
- register const char *ls_end;
- const struct rlalink *rlp;
- const struct tos_metric *tosp;
- const struct in_addr *ap;
- const struct aslametric *almp;
- const struct mcla *mcp;
- const u_int32_t *lp;
- int j, k;
-
- if (ospf_print_lshdr(&lsap->ls_hdr, end)) {
- return 1;
- }
-
- ls_end = (caddr_t) lsap + ntohs(lsap->ls_hdr.ls_length);
-
- if (ls_end > end) {
- printf(" }"); /* { (ctags) */
- return 1;
- }
-
- switch (lsap->ls_hdr.ls_type) {
- case LS_TYPE_ROUTER:
- ospf_print_bits(ospf_rla_flag_bits, lsap->lsa_un.un_rla.rla_flags);
-
- j = ntohs(lsap->lsa_un.un_rla.rla_count);
- rlp = lsap->lsa_un.un_rla.rla_link;
- while (j--) {
- struct rlalink *rln = (struct rlalink *) ((caddr_t) (rlp + 1) + ((rlp->link_toscount) * sizeof (struct tos_metric)));
-
- if ((caddr_t) rln > ls_end) {
+ 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--) {
+ register struct rlalink *rln =
+ (struct rlalink *)((u_char *)(rlp + 1) +
+ ((rlp->link_toscount) * sizeof(*tosp)));
+
+ TCHECK(*rln);
+ printf(" {"); /* } (ctags) */
+ switch (rlp->link_type) {
+
+ case RLA_TYPE_VIRTUAL:
+ printf(" virt");
+ /* Fall through */
+
+ 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 = rln;
+ }
break;
- }
- printf(" {"); /* } (ctags) */
-
- switch (rlp->link_type) {
- case RLA_TYPE_VIRTUAL:
- printf(" virt");
- /* Fall through */
- case RLA_TYPE_ROUTER:
- printf(" nbrid %s if %s",
- ipaddr_string(&rlp->link_id),
- ipaddr_string(&rlp->link_data));
+ 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 RLA_TYPE_TRANSIT:
- printf(" dr %s if %s",
- ipaddr_string(&rlp->link_id),
- ipaddr_string(&rlp->link_data));
+ 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));
+ /* Fall through */
+
+ 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 RLA_TYPE_STUB:
- printf(" net %s mask %s",
- ipaddr_string(&rlp->link_id),
- ipaddr_string(&rlp->link_data));
+ 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.s_addr) {
+ printf(" tag %s",
+ ipaddr_string(&almp->asla_tag));
+ }
+ ++almp;
+ }
break;
- default:
- printf(" ??RouterLinksType %d?? }", /* { (ctags) */
- rlp->link_type);
- return 0;
- }
- printf(" tos 0 metric %d",
- ntohs(rlp->link_tos0metric));
- tosp = (struct tos_metric *) ((sizeof rlp->link_tos0metric) + (caddr_t) rlp);
- for (k = 0; k < rlp->link_toscount; k++, tosp++) {
- printf(" tos %d metric %d",
- tosp->tos_type,
- ntohs(tosp->tos_metric));
- }
- printf(" }"); /* { (ctags) */
- rlp = rln;
- }
- break;
-
- case LS_TYPE_NETWORK:
- printf(" mask %s rtrs",
- ipaddr_string(&lsap->lsa_un.un_nla.nla_mask));
- for (ap = lsap->lsa_un.un_nla.nla_router;
- (caddr_t) (ap + 1) <= ls_end;
- ap++) {
- printf(" %s",
- ipaddr_string(ap));
+ 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;
+ }
}
- break;
- case LS_TYPE_SUM_IP:
- printf(" mask %s",
- ipaddr_string(&lsap->lsa_un.un_sla.sla_mask));
- /* Fall through */
+ /* { (ctags) */
+ fputs(" }", stdout);
+ return (0);
+trunc:
+ fputs(" }", stdout);
+ return (1);
+}
- case LS_TYPE_SUM_ABR:
+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;
- for (lp = lsap->lsa_un.un_sla.sla_tosmetric;
- (caddr_t) (lp + 1) <= ls_end;
- lp++) {
- u_int32_t ul = ntohl(*lp);
+ switch (op->ospf_type) {
- printf(" tos %d metric %d",
- (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,
- ul & SLA_MASK_METRIC);
- }
- break;
-
- case LS_TYPE_ASE:
- printf(" mask %s",
- ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));
-
- for (almp = lsap->lsa_un.un_asla.asla_metric;
- (caddr_t) (almp + 1) <= ls_end;
- almp++) {
- u_int32_t 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));
- if (almp->asla_forward.s_addr) {
- printf(" forward %s",
- ipaddr_string(&almp->asla_forward));
- }
- if (almp->asla_tag.s_addr) {
- printf(" tag %s",
- ipaddr_string(&almp->asla_tag));
- }
- }
- break;
-
- case LS_TYPE_GROUP:
- /* Multicast extensions as of 23 July 1991 */
- for (mcp = lsap->lsa_un.un_mcla;
- (caddr_t) (mcp + 1) <= ls_end;
- mcp++) {
- switch (ntohl(mcp->mcla_vtype)) {
- case MCLA_VERTEX_ROUTER:
- printf(" rtr rtrid %s",
- ipaddr_string(&mcp->mcla_vid));
+ case OSPF_TYPE_UMD:
+ /*
+ * Rob Coltun's special monitoring packets;
+ * do nothing
+ */
break;
- case MCLA_VERTEX_NETWORK:
- printf(" net dr %s",
- ipaddr_string(&mcp->mcla_vid));
+ 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(" S %X", (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;
- default:
- printf(" ??VertexType %u??",
- (u_int32_t)ntohl(mcp->mcla_vtype));
+ 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;
- }
- }
- }
- printf(" }"); /* { (ctags) */
- return 0;
-}
+ 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;
-void
-ospf_print(register const u_char *bp, register u_int length,
- register const u_char *bp2)
-{
- register const struct ospfhdr *op;
- register const struct ip *ip;
- register const caddr_t end = (caddr_t)snapend;
- register const struct lsa *lsap;
- register const struct lsa_hdr *lshp;
- char sep;
- int i, j;
- const struct in_addr *ap;
- const struct lsr *lsrp;
-
- op = (struct ospfhdr *)bp;
- ip = (struct ip *)bp2;
- /* Print the source and destination address */
- (void) printf("%s > %s:",
- ipaddr_string(&ip->ip_src),
- ipaddr_string(&ip->ip_dst));
-
- if ((caddr_t) (&op->ospf_len + 1) > end) {
- goto trunc_test;
- }
-
- /* If the type is valid translate it, or just print the type */
- /* value. If it's not valid, say so and return */
- if (op->ospf_type || op->ospf_type < OSPF_TYPE_MAX) {
- printf(" OSPFv%d-%s %d:",
- op->ospf_version,
- ospf_types[op->ospf_type],
- length);
- } else {
- printf(" ospf-v%d-??type %d?? %d:",
- op->ospf_version,
- op->ospf_type,
- length);
- return;
- }
-
- if (length != ntohs(op->ospf_len)) {
- printf(" ??len %d??",
- ntohs(op->ospf_len));
- goto trunc_test;
- }
-
- if ((caddr_t) (&op->ospf_routerid + 1) > end) {
- goto trunc_test;
- }
-
- /* Print the routerid if it is not the same as the source */
- if (ip->ip_src.s_addr != op->ospf_routerid.s_addr) {
- printf(" rtrid %s",
- ipaddr_string(&op->ospf_routerid));
- }
-
- if ((caddr_t) (&op->ospf_areaid + 1) > end) {
- goto trunc_test;
- }
-
- if (op->ospf_areaid.s_addr) {
- printf(" area %s",
- ipaddr_string(&op->ospf_areaid));
- } else {
- printf(" backbone");
- }
-
- if ((caddr_t) (op->ospf_authdata + OSPF_AUTH_SIZE) > end) {
- goto trunc_test;
- }
-
- if (vflag) {
- /* Print authentication data (should we really do this?) */
- switch (ntohs(op->ospf_authtype)) {
- case OSPF_AUTH_NONE:
- break;
-
- case OSPF_AUTH_SIMPLE:
- printf(" auth ");
- j = 0;
- for (i = 0; i < sizeof (op->ospf_authdata); i++) {
- if (!isprint(op->ospf_authdata[i])) {
- j = 1;
- break;
+ case OSPF_TYPE_LSA:
+ if (vflag) {
+ lshp = op->ospf_lsa.lsa_lshdr;
+
+ while (!ospf_print_lshdr(lshp)) {
+ /* { (ctags) */
+ printf(" }");
+ ++lshp;
+ }
}
- }
- if (j) {
- /* Print the auth-data as a string of octets */
- printf("%s.%s",
- ipaddr_string((struct in_addr *) op->ospf_authdata),
- ipaddr_string((struct in_addr *) &op->ospf_authdata[sizeof (struct in_addr)]));
- } else {
- /* Print the auth-data as a text string */
- printf("'%.8s'",
- op->ospf_authdata);
- }
- break;
+ break;
default:
- printf(" ??authtype-%d??",
- ntohs(op->ospf_authtype));
- return;
+ printf("v2 type %d", op->ospf_type);
+ break;
}
- }
-
-
- /* Do rest according to version. */
- switch (op->ospf_version) {
- case 2:
- /* ospf version 2 */
- switch (op->ospf_type) {
- case OSPF_TYPE_UMD: /* Rob Coltun's special monitoring packets; do nothing */
- break;
+ return (0);
+trunc:
+ return (1);
+}
- case OSPF_TYPE_HELLO:
- if ((caddr_t) (&op->ospf_hello.hello_deadint + 1) > end) {
- break;
- }
- if (vflag) {
- 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));
- }
-
- if ((caddr_t) (&op->ospf_hello.hello_dr + 1) > end) {
- break;
- }
- if (op->ospf_hello.hello_dr.s_addr) {
- printf(" dr %s",
- ipaddr_string(&op->ospf_hello.hello_dr));
- }
+void
+ospf_print(register const u_char *bp, register u_int length,
+ register const u_char *bp2)
+{
+ register const struct ospfhdr *op;
+ register const struct ip *ip;
+ register const u_char *dataend;
+ register const char *cp;
+
+ op = (struct ospfhdr *)bp;
+ ip = (struct ip *)bp2;
+ /* Print the source and destination address */
+ (void) printf("%s > %s:",
+ ipaddr_string(&ip->ip_src),
+ ipaddr_string(&ip->ip_dst));
+
+ /* If the type is valid translate it, or just print the type */
+ /* value. If it's not valid, say so and return */
+ TCHECK(op->ospf_type);
+ cp = tok2str(type2str, "type%d", op->ospf_type);
+ printf(" OSPFv%d-%s %d:", op->ospf_version, cp, length);
+ if (*cp == 't')
+ return;
+
+ TCHECK(op->ospf_len);
+ if (length != ntohs(op->ospf_len)) {
+ printf(" [len %d]", ntohs(op->ospf_len));
+ return;
+ }
+ dataend = bp + length;
- if ((caddr_t) (&op->ospf_hello.hello_bdr + 1) > end) {
- break;
- }
- if (op->ospf_hello.hello_bdr.s_addr) {
- printf(" bdr %s",
- ipaddr_string(&op->ospf_hello.hello_bdr));
- }
-
- if (vflag) {
- if ((caddr_t) (op->ospf_hello.hello_neighbor + 1) > end) {
- break;
- }
- printf(" nbrs");
- for (ap = op->ospf_hello.hello_neighbor;
- (caddr_t) (ap + 1) <= end;
- ap++) {
- printf(" %s",
- ipaddr_string(ap));
- }
- }
- break; /* HELLO */
+ /* Print the routerid if it is not the same as the source */
+ TCHECK(op->ospf_routerid);
+ if (ip->ip_src.s_addr != op->ospf_routerid.s_addr)
+ printf(" rtrid %s", ipaddr_string(&op->ospf_routerid));
- case OSPF_TYPE_DB:
- if ((caddr_t) (&op->ospf_db.db_seq + 1) > end) {
- break;
- }
- ospf_print_bits(ospf_option_bits, op->ospf_db.db_options);
- sep = ' ';
- 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 = '/';
- }
- printf(" S %X", (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, end)) {
- printf(" }"); /* { (ctags) */
- lshp++;
- }
- }
- break;
+ TCHECK(op->ospf_areaid);
+ if (op->ospf_areaid.s_addr != 0)
+ printf(" area %s", ipaddr_string(&op->ospf_areaid));
+ else
+ printf(" backbone");
- case OSPF_TYPE_LSR:
- if (vflag) {
- for (lsrp = op->ospf_lsr; (caddr_t) (lsrp+1) <= end; lsrp++) {
- int32_t type;
+ if (vflag) {
+ /* Print authentication data (should we really do this?) */
+ TCHECK2(op->ospf_authdata[0], sizeof(op->ospf_authdata));
+ switch (ntohs(op->ospf_authtype)) {
- if ((caddr_t) (lsrp + 1) > end) {
+ case OSPF_AUTH_NONE:
break;
- }
- printf(" {"); /* } (ctags) */
- if (!(type = ntohl(lsrp->ls_type)) || type >= LS_TYPE_MAX) {
- printf(" ??LinkStateType %d }", type); /* { (ctags) */
- printf(" }"); /* { (ctags) */
+ case OSPF_AUTH_SIMPLE:
+ printf(" auth \"");
+ (void)fn_printn(op->ospf_authdata,
+ sizeof(op->ospf_authdata), NULL);
+ printf("\"");
break;
- }
- LS_PRINT(lsrp, type);
- printf(" }"); /* { (ctags) */
+ default:
+ printf(" ??authtype-%d??", ntohs(op->ospf_authtype));
+ return;
}
- }
- break;
-
- case OSPF_TYPE_LSU:
- if (vflag) {
- lsap = op->ospf_lsu.lsu_lsa;
- i = ntohl(op->ospf_lsu.lsu_count);
-
- while (i-- &&
- !ospf_print_lsa(lsap, end)) {
- lsap = (struct lsa *) ((caddr_t) lsap + ntohs(lsap->ls_hdr.ls_length));
- }
- }
- break;
-
+ }
+ /* Do rest according to version. */
+ switch (op->ospf_version) {
- case OSPF_TYPE_LSA:
- if (vflag) {
- lshp = op->ospf_lsa.lsa_lshdr;
+ case 2:
+ /* ospf version 2 */
+ if (ospf_decode_v2(op, dataend))
+ goto trunc;
+ break;
- while (!ospf_print_lshdr(lshp, end)) {
- printf(" }"); /* { (ctags) */
- lshp++;
- }
+ default:
+ printf(" ospf [version %d]", op->ospf_version);
break;
- }
- } /* end switch on v2 packet type */
- break;
-
- default:
- printf(" ospf [version %d]",
- op->ospf_version);
- break;
- } /* end switch on version */
-
- trunc_test:
- if ((snapend - bp) < length) {
- printf(" [|]");
- }
-
- return; /* from ospf_print */
+ } /* end switch on version */
+
+ return;
+trunc:
+ fputs(tstr, stdout);
}
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