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| author | Arnaldo Carvalho de Melo <acme@mandriva.com> | 2005-08-09 20:30:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-29 15:55:18 -0700 |
| commit | 27258ee54f8cd4a43d09319aa5448145afc2cb8d (patch) | |
| tree | 4a52d16da47f7ab0777252169406ae85e53488b1 /net/dccp/output.c | |
| parent | 0d48d93947dd9ea21c5cdc76a8581b06a4a39281 (diff) | |
| download | linux-3.10-27258ee54f8cd4a43d09319aa5448145afc2cb8d.tar.gz linux-3.10-27258ee54f8cd4a43d09319aa5448145afc2cb8d.tar.bz2 linux-3.10-27258ee54f8cd4a43d09319aa5448145afc2cb8d.zip | |
[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.c | 38 |
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; } |