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Support IPv6 SCTP traceroute.

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This commit is contained in:
david
2012-10-06 21:26:33 +00:00
parent 7830eb4db6
commit cf33599c2f
1 changed files with 19 additions and 10 deletions
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29
traceroute.cc
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@@ -559,7 +559,7 @@ struct probespec HostState::get_probe(const Target *target) {
(probe.type == PS_TCP || probe.type == PS_UDP || probe.type == PS_SCTP || probe.type == PS_ICMP)) {
/* Nothing needed. */
} else if (target->af() == AF_INET6 &&
(probe.type == PS_TCP || probe.type == PS_UDP || probe.type == PS_ICMPV6)) {
(probe.type == PS_TCP || probe.type == PS_UDP || probe.type == PS_SCTP || probe.type == PS_ICMPV6)) {
/* Nothing needed. */
} else if (target->af() == AF_INET && probe.type == PS_PROTO) {
/* If this is an IP protocol probe, fill in some fields for some common
@@ -774,18 +774,27 @@ public:
}
unsigned char *build_packet(const struct sockaddr_storage *source, u32 *len) const {
struct sctp_chunkhdr_init chunk;
const struct sockaddr_in *sin;
assert(source->ss_family == AF_INET);
sin = (struct sockaddr_in *) source;
sctp_pack_chunkhdr_init(&chunk, SCTP_INIT, 0, sizeof(chunk),
get_random_u32() /*itag*/, 32768, 10, 2048, get_random_u32() /*itsn*/);
return build_sctp_raw(&sin->sin_addr, host->target->v4hostip(), ttl,
get_random_u16(), get_random_u8(), false, NULL, 0,
token ^ global_id, pspec.pd.sctp.dport, 0UL,
(char *) &chunk, sizeof(chunk),
o.extra_payload, o.extra_payload_length, len);
if (source->ss_family == AF_INET) {
const struct sockaddr_in *sin = (struct sockaddr_in *) source;
return build_sctp_raw(&sin->sin_addr, host->target->v4hostip(), ttl,
get_random_u16(), get_random_u8(), false, NULL, 0,
token ^ global_id, pspec.pd.sctp.dport, 0UL,
(char *) &chunk, sizeof(chunk),
o.extra_payload, o.extra_payload_length, len);
} else if (source->ss_family == AF_INET6) {
const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) source;
return build_sctp_raw_ipv6(&sin6->sin6_addr, host->target->v6hostip(),
0, 0, ttl,
token ^ global_id, pspec.pd.sctp.dport, 0UL,
(char *) &chunk, sizeof(chunk),
o.extra_payload, o.extra_payload_length, len);
} else {
fatal("Unknown address family %u in %s.", source->ss_family, __func__);
}
}
};