#define IN_CLASSD(i) (((int32_t)(i) & 0xf0000000) == 0xe0000000)
#endif
-static const char tstr[] = "[|igmp]";
/* (following from ipmulti/mrouted/prune.h) */
static void
print_mtrace(netdissect_options *ndo,
+ const char *typename,
const u_char *bp, u_int len)
{
const struct tr_query *tr = (const struct tr_query *)(bp + 8);
- ND_TCHECK_SIZE(tr);
if (len < 8 + sizeof (struct tr_query)) {
ND_PRINT(" [invalid len %u]", len);
return;
}
- ND_PRINT("mtrace %u: %s to %s reply-to %s",
- EXTRACT_BE_U_3(tr->tr_qid),
- ipaddr_string(ndo, tr->tr_src), ipaddr_string(ndo, tr->tr_dst),
- ipaddr_string(ndo, tr->tr_raddr));
- if (IN_CLASSD(EXTRACT_BE_U_4(tr->tr_raddr)))
- ND_PRINT(" with-ttl %u", EXTRACT_U_1(tr->tr_rttl));
- return;
-trunc:
- ND_PRINT("%s", tstr);
-}
-
-static void
-print_mresp(netdissect_options *ndo,
- const u_char *bp, u_int len)
-{
- const struct tr_query *tr = (const struct tr_query *)(bp + 8);
-
- ND_TCHECK_SIZE(tr);
- if (len < 8 + sizeof (struct tr_query)) {
- ND_PRINT(" [invalid len %u]", len);
- return;
- }
- ND_PRINT("mresp %u: %s to %s reply-to %s",
- EXTRACT_BE_U_3(tr->tr_qid),
- ipaddr_string(ndo, tr->tr_src), ipaddr_string(ndo, tr->tr_dst),
- ipaddr_string(ndo, tr->tr_raddr));
- if (IN_CLASSD(EXTRACT_BE_U_4(tr->tr_raddr)))
- ND_PRINT(" with-ttl %u", EXTRACT_U_1(tr->tr_rttl));
- return;
-trunc:
- ND_PRINT("%s", tstr);
+ ND_PRINT("%s %u: %s to %s reply-to %s",
+ typename,
+ GET_BE_U_3(tr->tr_qid),
+ GET_IPADDR_STRING(tr->tr_src), GET_IPADDR_STRING(tr->tr_dst),
+ GET_IPADDR_STRING(tr->tr_raddr));
+ if (IN_CLASSD(GET_BE_U_4(tr->tr_raddr)))
+ ND_PRINT(" with-ttl %u", GET_U_1(tr->tr_rttl));
}
static void
ND_PRINT(" [invalid len %u]", len);
return;
}
- ND_TCHECK_2(bp + 6);
- ngroups = EXTRACT_BE_U_2(bp + 6);
+ ngroups = GET_BE_U_2(bp + 6);
ND_PRINT(", %u group record(s)", ngroups);
if (ndo->ndo_vflag > 0) {
/* Print the group records */
ND_PRINT(" [invalid number of groups]");
return;
}
- ND_TCHECK_4(bp + (group + 4));
- ND_PRINT(" [gaddr %s", ipaddr_string(ndo, bp + group + 4));
+ ND_PRINT(" [gaddr %s", GET_IPADDR_STRING(bp + group + 4));
ND_PRINT(" %s", tok2str(igmpv3report2str, " [v3-report-#%u]",
- EXTRACT_U_1(bp + group)));
- nsrcs = EXTRACT_BE_U_2(bp + group + 2);
+ GET_U_1(bp + group)));
+ nsrcs = GET_BE_U_2(bp + group + 2);
/* Check the number of sources and print them */
if (len < group+8+(nsrcs<<2)) {
ND_PRINT(" [invalid number of sources %u]", nsrcs);
/* Print the sources */
ND_PRINT(" {");
for (j=0; j<nsrcs; j++) {
- ND_TCHECK_4(bp + (group + 8 + (j << 2)));
- ND_PRINT(" %s", ipaddr_string(ndo, bp + group + 8 + (j << 2)));
+ ND_PRINT(" %s", GET_IPADDR_STRING(bp + group + 8 + (j << 2)));
}
ND_PRINT(" }");
}
ND_PRINT("]");
}
}
- return;
-trunc:
- ND_PRINT("%s", tstr);
}
static void
ND_PRINT(" [invalid len %u]", len);
return;
}
- ND_TCHECK_1(bp + 1);
- mrc = EXTRACT_U_1(bp + 1);
+ mrc = GET_U_1(bp + 1);
if (mrc < 128) {
mrt = mrc;
} else {
}
ND_PRINT("]");
}
- ND_TCHECK_4(bp + 4);
- if (EXTRACT_BE_U_4(bp + 4) == 0)
+ if (GET_BE_U_4(bp + 4) == 0)
return;
- ND_PRINT(" [gaddr %s", ipaddr_string(ndo, bp + 4));
- ND_TCHECK_2(bp + 10);
- nsrcs = EXTRACT_BE_U_2(bp + 10);
+ ND_PRINT(" [gaddr %s", GET_IPADDR_STRING(bp + 4));
+ nsrcs = GET_BE_U_2(bp + 10);
if (nsrcs > 0) {
if (len < 12 + (nsrcs << 2))
ND_PRINT(" [invalid number of sources]");
else if (ndo->ndo_vflag > 1) {
ND_PRINT(" {");
for (i=0; i<nsrcs; i++) {
- ND_TCHECK_4(bp + (12 + (i << 2)));
- ND_PRINT(" %s", ipaddr_string(ndo, bp + 12 + (i << 2)));
+ ND_PRINT(" %s", GET_IPADDR_STRING(bp + 12 + (i << 2)));
}
ND_PRINT(" }");
} else
ND_PRINT(", %u source(s)", nsrcs);
}
ND_PRINT("]");
- return;
-trunc:
- ND_PRINT("%s", tstr);
}
void
{
struct cksum_vec vec[1];
+ ndo->ndo_protocol = "igmp";
if (ndo->ndo_qflag) {
ND_PRINT("igmp");
return;
}
- ND_TCHECK_1(bp);
- switch (EXTRACT_U_1(bp)) {
+ switch (GET_U_1(bp)) {
case 0x11:
ND_PRINT("igmp query");
if (len >= 12)
print_igmpv3_query(ndo, bp, len);
else {
- ND_TCHECK_1(bp + 1);
- if (EXTRACT_U_1(bp + 1)) {
+ if (GET_U_1(bp + 1)) {
ND_PRINT(" v2");
- if (EXTRACT_U_1(bp + 1) != 100)
- ND_PRINT(" [max resp time %u]", EXTRACT_U_1(bp + 1));
+ if (GET_U_1(bp + 1) != 100)
+ ND_PRINT(" [max resp time %u]", GET_U_1(bp + 1));
} else
ND_PRINT(" v1");
- ND_TCHECK_4(bp + 4);
- if (EXTRACT_BE_U_4(bp + 4))
- ND_PRINT(" [gaddr %s]", ipaddr_string(ndo, bp + 4));
+ if (GET_BE_U_4(bp + 4))
+ ND_PRINT(" [gaddr %s]", GET_IPADDR_STRING(bp + 4));
if (len != 8)
ND_PRINT(" [len %u]", len);
}
break;
case 0x12:
- ND_TCHECK_4(bp + 4);
- ND_PRINT("igmp v1 report %s", ipaddr_string(ndo, bp + 4));
+ ND_PRINT("igmp v1 report %s", GET_IPADDR_STRING(bp + 4));
if (len != 8)
ND_PRINT(" [len %u]", len);
break;
case 0x16:
- ND_TCHECK_4(bp + 4);
- ND_PRINT("igmp v2 report %s", ipaddr_string(ndo, bp + 4));
+ ND_PRINT("igmp v2 report %s", GET_IPADDR_STRING(bp + 4));
break;
case 0x22:
ND_PRINT("igmp v3 report");
print_igmpv3_report(ndo, bp, len);
break;
case 0x17:
- ND_TCHECK_4(bp + 4);
- ND_PRINT("igmp leave %s", ipaddr_string(ndo, bp + 4));
+ ND_PRINT("igmp leave %s", GET_IPADDR_STRING(bp + 4));
break;
case 0x13:
ND_PRINT("igmp dvmrp");
pimv1_print(ndo, bp, len);
break;
case 0x1e:
- print_mresp(ndo, bp, len);
+ print_mtrace(ndo, "mresp", bp, len);
break;
case 0x1f:
- print_mtrace(ndo, bp, len);
+ print_mtrace(ndo, "mtrace", bp, len);
break;
default:
- ND_PRINT("igmp-%u", EXTRACT_U_1(bp));
+ ND_PRINT("igmp-%u", GET_U_1(bp));
break;
}
vec[0].ptr = bp;
vec[0].len = len;
if (in_cksum(vec, 1))
- ND_PRINT(" bad igmp cksum %x!", EXTRACT_BE_U_2(bp + 2));
+ ND_PRINT(" bad igmp cksum %x!", GET_BE_U_2(bp + 2));
}
- return;
-trunc:
- ND_PRINT("%s", tstr);
}
projects / tcpdump / blobdiff