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authorArnaldo Carvalho de Melo <acme@mandriva.com>2005-08-09 20:30:56 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 15:55:18 -0700
commit27258ee54f8cd4a43d09319aa5448145afc2cb8d (patch)
tree4a52d16da47f7ab0777252169406ae85e53488b1 /net/dccp/output.c
parent0d48d93947dd9ea21c5cdc76a8581b06a4a39281 (diff)
[DCCP]: Introduce dccp_write_xmit from code in dccp_sendmsg
This way it gets closer to the TCP flow, where congestion window checks are done, it seems we can map ccid_hc_tx_send_packet in dccp_write_xmit to tcp_snd_wnd_test in tcp_write_xmit, a CCID2 decision should just fit in here as well... Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/output.c')
-rw-r--r--net/dccp/output.c38
1 files changed, 37 insertions, 1 deletions
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 4945eaa9d1a..50292c0605f 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -148,6 +148,41 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
return mss_now;
}
+int dccp_write_xmit(struct sock *sk, struct sk_buff *skb, const int len)
+{
+ const struct dccp_sock *dp = dccp_sk(sk);
+ int err = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb, len);
+
+ if (err == 0) {
+ const struct dccp_ackpkts *ap = dp->dccps_hc_rx_ackpkts;
+ struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
+
+ if (sk->sk_state == DCCP_PARTOPEN) {
+ /* See 8.1.5. Handshake Completion */
+ inet_csk_schedule_ack(sk);
+ inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
+ inet_csk(sk)->icsk_rto,
+ DCCP_RTO_MAX);
+ dcb->dccpd_type = DCCP_PKT_DATAACK;
+ /*
+ * FIXME: we really should have a
+ * dccps_ack_pending or use icsk.
+ */
+ } else if (inet_csk_ack_scheduled(sk) ||
+ (dp->dccps_options.dccpo_send_ack_vector &&
+ ap->dccpap_buf_ackno != DCCP_MAX_SEQNO + 1 &&
+ ap->dccpap_ack_seqno == DCCP_MAX_SEQNO + 1))
+ dcb->dccpd_type = DCCP_PKT_DATAACK;
+ else
+ dcb->dccpd_type = DCCP_PKT_DATA;
+
+ err = dccp_transmit_skb(sk, skb);
+ ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
+ }
+
+ return err;
+}
+
int dccp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
{
if (inet_sk_rebuild_header(sk) != 0)
@@ -299,7 +334,8 @@ int dccp_connect(struct sock *sk)
DCCP_INC_STATS(DCCP_MIB_ACTIVEOPENS);
/* Timer for repeating the REQUEST until an answer. */
- inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, icsk->icsk_rto, TCP_RTO_MAX);
+ inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
+ icsk->icsk_rto, DCCP_RTO_MAX);
return 0;
}