cc5453a5b7
If an sctp connection gets re-used, heartbeats are flagged as invalid
because their vtag doesn't match.
Handle this in a similar way as TCP conntrack when it suspects that the
endpoints and conntrack are out-of-sync.
When a HEARTBEAT request fails its vtag validation, flag this in the
conntrack state and accept the packet.
When a HEARTBEAT_ACK is received with an invalid vtag in the reverse
direction after we allowed such a HEARTBEAT through, assume we are
out-of-sync and re-set the vtag info.
v2: remove left-over snippet from an older incarnation that moved
new_state/old_state assignments, thats not needed so keep that
as-is.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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|---|---|---|
| .. | ||
| ipset | ||
| nf_conntrack_amanda.h | ||
| nf_conntrack_common.h | ||
| nf_conntrack_dccp.h | ||
| nf_conntrack_ftp.h | ||
| nf_conntrack_h323_asn1.h | ||
| nf_conntrack_h323_types.h | ||
| nf_conntrack_h323.h | ||
| nf_conntrack_irc.h | ||
| nf_conntrack_pptp.h | ||
| nf_conntrack_proto_gre.h | ||
| nf_conntrack_sane.h | ||
| nf_conntrack_sctp.h | ||
| nf_conntrack_sip.h | ||
| nf_conntrack_snmp.h | ||
| nf_conntrack_tcp.h | ||
| nf_conntrack_tftp.h | ||
| nf_conntrack_zones_common.h | ||
| nfnetlink_acct.h | ||
| nfnetlink_osf.h | ||
| nfnetlink.h | ||
| x_tables.h | ||