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  1. 17 10月, 2010 15 次提交
  3. 16 10月, 2010 1 次提交
  5. 15 10月, 2010 11 次提交
  7. 14 10月, 2010 4 次提交
  9. 13 10月, 2010 3 次提交
  11. 12 10月, 2010 6 次提交
    • G
      dccp: cosmetics - warning format · 2f34b329
      由 Gerrit Renker 提交于 
      This  omits the redundant "DCCP:" in warning messages, since DCCP_WARN() already
echoes the function name, avoiding messages like

   kernel: [10988.766503] dccp_close: DCCP: ABORT -- 209 bytes unread
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      2f34b329
    • G
      dccp: schedule an Ack when receiving timestamps · ecdfbdab
      由 Gerrit Renker 提交于 
      This schedules an Ack when receiving a timestamp, exploiting the
existing inet_csk_schedule_ack() function, saving one case in the
`dccp_ack_pending()' function.
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      ecdfbdab
    • I
      dccp: generalise data-loss condition · d196c9a5
      由 Ivo Calado 提交于 
      This patch generalises the task of determining data loss from RFC 4340, 7.7.1.

Let S_A, S_B be sequence numbers such that S_B is "after" S_A, and let
N_B be the NDP count of packet S_B. Then, using modulo-2^48 arithmetic,
 D = S_B - S_A - 1  is an upper bound of the number of lost data packets,
 D - N_B            is an approximation of the number of lost data packets
                    (there are cases where this is not exact).

The patch implements this as
 dccp_loss_count(S_A, S_B, N_B) := max(S_B - S_A - 1 - N_B, 0)
Signed-off-by: NIvo Calado <ivocalado@embedded.ufcg.edu.br>
Signed-off-by: NErivaldo Xavier <desadoc@gmail.com>
Signed-off-by: NLeandro Sales <leandroal@gmail.com>
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      d196c9a5
    • G
      dccp: remove unused argument in CCID tx function · baf9e782
      由 Gerrit Renker 提交于 
      This removes the argument `more' from ccid_hc_tx_packet_sent, since it was
nowhere used in the entire code.

(Btw, this argument was not even used in the original KAME code where the
 function initially came from; compare the variable moreToSend in the
 freebsd61-dccp-kame-28.08.2006.patch kept by Emmanuel Lochin.)
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      baf9e782
    • G
      dccp: merge now-reduced connect_init() function · 93344af4
      由 Gerrit Renker 提交于 
      After moving the assignment of GAR/ISS from dccp_connect_init() to
dccp_transmit_skb(), the former function becomes very small, so that
a merger with dccp_connect() suggests itself.
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      93344af4
    • G
      dccp: fix the adjustments to AWL and SWL · 0b53d460
      由 Gerrit Renker 提交于 
      This fixes a problem and a potential loophole with regard to seqno/ackno
validity: currently the initial adjustments to AWL/SWL are only performed
once at the begin of the connection, during the handshake.

Since the Sequence Window feature is always greater than Wmin=32 (7.5.2),
it is however necessary to perform these adjustments at least for the first
W/W' (variables as per 7.5.1) packets in the lifetime of a connection.

This requirement is complicated by the fact that W/W' can change at any time
during the lifetime of a connection.

Therefore it is better to perform that safety check each time SWL/AWL are
updated, as implemented by the patch.

A second problem solved by this patch is that the remote/local Sequence Window
feature values (which set the bounds for AWL/SWL/SWH) are undefined until the
feature negotiation has completed.

During the initial handshake we have more stringent sequence number protection;
the changes added by this patch effect that {A,S}W{L,H} are within the correct
bounds at the instant that feature negotiation completes (since the SeqWin
feature activation handlers call dccp_update_gsr/gss()).
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
      0b53d460