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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-11-13 13:34:38 -0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-02 21:22:22 -0800 |
| commit | d7f7365f5776723da6df73540d855069c2daaa5c (patch) | |
| tree | cc63c8a85c4d6a768cee8da00577900215e786a8 /net/dccp/output.c | |
| parent | 865e9022d88ceedd89fa1079a6e1f9266ccd3711 (diff) | |
| download | linux-d7f7365f5776723da6df73540d855069c2daaa5c.tar.gz linux-d7f7365f5776723da6df73540d855069c2daaa5c.tar.bz2 linux-d7f7365f5776723da6df73540d855069c2daaa5c.zip | |
[DCCPv6]: Choose a genuine initial sequence number
This
* resolves a FIXME - DCCPv6 connections started all with
an initial sequence number of 1;
* provides a redirection `secure_dccpv6_sequence_number'
in case the init_sequence_v6 code should be updated later;
* concentrates the update of S.GAR into dccp_connect_init();
* removes a duplicate dccp_update_gss() in ipv4.c;
* uses inet->dport instead of usin->sin_port, due to the
following assignment in dccp_v4_connect():
inet->dport = usin->sin_port;
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'net/dccp/output.c')
| -rw-r--r-- | net/dccp/output.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/dccp/output.c b/net/dccp/output.c index 08ee5547a2f2..0994b13f0f15 100644 --- a/net/dccp/output.c +++ b/net/dccp/output.c @@ -448,7 +448,6 @@ static inline void dccp_connect_init(struct sock *sk) dccp_sync_mss(sk, dst_mtu(dst)); - dccp_update_gss(sk, dp->dccps_iss); /* * SWL and AWL are initially adjusted so that they are not less than * the initial Sequence Numbers received and sent, respectively: @@ -457,8 +456,13 @@ static inline void dccp_connect_init(struct sock *sk) * These adjustments MUST be applied only at the beginning of the * connection. */ + dccp_update_gss(sk, dp->dccps_iss); dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss)); + /* S.GAR - greatest valid acknowledgement number received on a non-Sync; + * initialized to S.ISS (sec. 8.5) */ + dp->dccps_gar = dp->dccps_iss; + icsk->icsk_retransmits = 0; init_timer(&dp->dccps_xmit_timer); dp->dccps_xmit_timer.data = (unsigned long)sk; |