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Use 32-bit values, not 16, for IP ID values.

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IP ID fields are overloaded to include the flow label of IPv6 packets.
In particular, abstract_ip_hdr is no longer limited to 16 bits.
This commit is contained in:
david
2013-10-27 06:33:45 +00:00
parent a628c0ae9c
commit 5df0e13ee2
3 changed files with 5 additions and 6 deletions
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6
scan_engine.cc
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@@ -269,7 +269,7 @@ struct IPExtraProbeData_sctp {
};
struct IPExtraProbeData {
u16 ipid; /* host byte order */
u32 ipid; /* host byte order */
union {
struct IPExtraProbeData_icmp icmp;
struct IPExtraProbeData_tcp tcp;
@@ -328,7 +328,7 @@ public:
}
/* not reached */
}
u16 ipid() const {
u32 ipid() const {
return probes.IP.ipid;
}
u16 icmpid() const; // ICMP ident if protocol is ICMP
@@ -934,7 +934,7 @@ void UltraProbe::setIP(u8 *ippacket, u32 len, const probespec *pspec) {
data = ipv6_get_data_any(ip6, &len, &hdr);
assert(data != NULL);
assert(len == (u32) ntohs(ip6->ip6_plen));
probes.IP.ipid = ntohl(ip6->ip6_flow & IP6_FLOWLABEL_MASK) & 0xFFFF;
probes.IP.ipid = ntohl(ip6->ip6_flow & IP6_FLOWLABEL_MASK);
hdr = ip6->ip6_nxt;
} else {
fatal("Bogus packet passed to %s -- only IP packets allowed", __func__);