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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2009-01-17 00:36:31 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-21 23:34:04 +0100 |
| commit | 792b48780e8b6435d017cef4b5c304876a48653e (patch) | |
| tree | 6949d6058f4d84f171a339e580ca906d30d67fad /Documentation/networking | |
| parent | dccp: Initialisation framework for feature negotiation (diff) | |
| download | linux-792b48780e8b6435d017cef4b5c304876a48653e.tar.xz linux-792b48780e8b6435d017cef4b5c304876a48653e.zip | |
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 is contained in this patch:
* 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.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/dccp.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt index 7a3bb1abb830..b132e4a3cf0f 100644 --- a/Documentation/networking/dccp.txt +++ b/Documentation/networking/dccp.txt @@ -141,7 +141,8 @@ rx_ccid = 2 Default CCID for the receiver-sender half-connection; see tx_ccid. seq_window = 100 - The initial sequence window (sec. 7.5.2). + The initial sequence window (sec. 7.5.2) of the sender. This influences + the local ackno validity and the remote seqno validity windows (7.5.1). tx_qlen = 5 The size of the transmit buffer in packets. A value of 0 corresponds |