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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 01:30:19 -0400
committerGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 01:45:32 -0400
commit51c7d4fa2675c106a980ddcdbe308b54b5151945 (patch)
tree0c1f2b1a3323582fb8629ba7826e08710271ed49 /net/dccp/proto.c
parent09856c108956c99088ead9267ccbd1dab77f7043 (diff)
dccp: Implement both feature-local and feature-remote Sequence Window feature
This adds full support for local/remote Sequence Window feature, from which the * sequence-number-validity (W) and * acknowledgment-number-validity (W') windows derive as specified in RFC 4340, 7.5.3. Specifically, the following changes are introduced: * integrated new socket fields into dccp_sk; * updated the update_gsr/gss routines with regard to these fields; * updated handler code: the Sequence Window feature is located at the TX side, so the local feature is meant if the handler-rx flag is false; * the initialisation of `rcv_wnd' in reqsk is removed, since - rcv_wnd is not used by the code anywhere; - sequence number checks are not done in the LISTEN state (cf. 7.5.3); - dccp_check_req checks the Ack number validity more rigorously; * the `struct dccp_minisock' became empty and is now removed. Until the handshake completes with activating negotiated values, the local/remote Sequence-Window values are undefined and thus can not reliably be estimated. This issue is addressed in a separate patch. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Diffstat (limited to 'net/dccp/proto.c')
-rw-r--r--net/dccp/proto.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 775eaa3d0c49..392a5d822b33 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -180,8 +180,6 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
180 struct dccp_sock *dp = dccp_sk(sk); 180 struct dccp_sock *dp = dccp_sk(sk);
181 struct inet_connection_sock *icsk = inet_csk(sk); 181 struct inet_connection_sock *icsk = inet_csk(sk);
182 182
183 dccp_minisock_init(&dp->dccps_minisock);
184
185 icsk->icsk_rto = DCCP_TIMEOUT_INIT; 183 icsk->icsk_rto = DCCP_TIMEOUT_INIT;
186 icsk->icsk_syn_retries = sysctl_dccp_request_retries; 184 icsk->icsk_syn_retries = sysctl_dccp_request_retries;
187 sk->sk_state = DCCP_CLOSED; 185 sk->sk_state = DCCP_CLOSED;