X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/b050a1e4e0d2116136f101e57b6d0e9e25ae7c70..refs/heads/tcpdump-4.1:/print-icmp6.c

diff --git a/print-icmp6.c b/print-icmp6.c
index f85660ca..24765381 100644
--- a/print-icmp6.c
+++ b/print-icmp6.c
@@ -135,6 +135,7 @@ static struct tok icmp6_opt_values[] = {
    { ND_OPT_PREFIX_INFORMATION, "prefix info"},
    { ND_OPT_REDIRECTED_HEADER, "redirected header"},
    { ND_OPT_MTU, "mtu"},
+   { ND_OPT_RDNSS, "rdnss"},
    { ND_OPT_ADVINTERVAL, "advertisement interval"},
    { ND_OPT_HOMEAGENT_INFO, "homeagent information"},
    { ND_OPT_ROUTE_INFO, "route info"},
@@ -349,14 +350,13 @@ icmp6_print(netdissect_options *ndo,
         printf("ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",dp->icmp6_type));
 
         /* display cosmetics: print the packet length for printer that use the vflag now */
-        if (vflag && (dp->icmp6_type ==
-                      ND_ROUTER_SOLICIT ||
-                      ND_ROUTER_ADVERT ||
-                      ND_NEIGHBOR_ADVERT ||
-                      ND_NEIGHBOR_SOLICIT ||
-                      ND_REDIRECT ||
-                      ICMP6_HADISCOV_REPLY ||
-                      ICMP6_MOBILEPREFIX_ADVERT ))
+        if (vflag && (dp->icmp6_type == ND_ROUTER_SOLICIT ||
+                      dp->icmp6_type == ND_ROUTER_ADVERT ||
+                      dp->icmp6_type == ND_NEIGHBOR_ADVERT ||
+                      dp->icmp6_type == ND_NEIGHBOR_SOLICIT ||
+                      dp->icmp6_type == ND_REDIRECT ||
+                      dp->icmp6_type == ICMP6_HADISCOV_REPLY ||
+                      dp->icmp6_type == ICMP6_MOBILEPREFIX_ADVERT ))
             printf(", length %u", length);
                       
 	switch (dp->icmp6_type) {
@@ -686,12 +686,14 @@ icmp6_opt_print(const u_char *bp, int resid)
 	const struct nd_opt_prefix_info *opp;
 	const struct icmp6_opts_redirect *opr;
 	const struct nd_opt_mtu *opm;
+	const struct nd_opt_rdnss *oprd;
 	const struct nd_opt_advinterval *opa;
 	const struct nd_opt_homeagent_info *oph;
 	const struct nd_opt_route_info *opri;
 	const u_char *cp, *ep;
 	struct in6_addr in6, *in6p;
 	size_t l;
+	u_int i;
 
 #define ECHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) return
 
@@ -750,6 +752,17 @@ icmp6_opt_print(const u_char *bp, int resid)
                                EXTRACT_32BITS(&opm->nd_opt_mtu_mtu),
                                (op->nd_opt_len != 1) ? "bad option length" : "" );
                         break;
+		case ND_OPT_RDNSS:
+			oprd = (struct nd_opt_rdnss *)op;
+			l = (op->nd_opt_len - 1) / 2;
+			printf(" lifetime %us,", 
+				EXTRACT_32BITS(&oprd->nd_opt_rdnss_lifetime)); 
+			for (i = 0; i < l; i++) {
+				TCHECK(oprd->nd_opt_rdnss_addr[i]);
+				printf(" addr: %s", 
+				    ip6addr_string(&oprd->nd_opt_rdnss_addr[i]));
+			}
+			break;
 		case ND_OPT_ADVINTERVAL:
 			opa = (struct nd_opt_advinterval *)op;
 			TCHECK(opa->nd_opt_adv_interval);
@@ -839,7 +852,7 @@ mldv2_report_print(const u_char *bp, u_int len)
     }
 
     TCHECK(icp->icmp6_data16[1]);
-    ngroups = ntohs(icp->icmp6_data16[1]);
+    ngroups = EXTRACT_16BITS(&icp->icmp6_data16[1]);
     printf(", %d group record(s)", ngroups);
     if (vflag > 0) {
 	/* Print the group records */
@@ -898,7 +911,7 @@ mldv2_query_print(const u_char *bp, u_int len)
 	return;
     }
     TCHECK(icp->icmp6_data16[0]);
-    mrc = ntohs(icp->icmp6_data16[0]);
+    mrc = EXTRACT_16BITS(&icp->icmp6_data16[0]);
     if (mrc < 32768) {
 	mrt = mrc;
     } else {
@@ -927,7 +940,7 @@ mldv2_query_print(const u_char *bp, u_int len)
     }
 
     TCHECK2(bp[26], 2);
-    nsrcs = ntohs(*(u_short *)&bp[26]);
+    nsrcs = EXTRACT_16BITS(&bp[26]);
     if (nsrcs > 0) {
 	if (len < 28 + nsrcs * sizeof(struct in6_addr))
 	    printf(" [invalid number of sources]");