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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2006-11-27 12:13:38 -0200
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:30:35 -0800
commit90feeb951f61a80d3a8f8e5ced25b9ec78867eaf (patch)
treeda51cfafc387972099ab2540ae301f8ae3fd7e8c /net/dccp
parent6472c051fcc5e571a9abee7f7a1ac58cc6e7bafa (diff)
downloadop-kernel-dev-90feeb951f61a80d3a8f8e5ced25b9ec78867eaf.zip
op-kernel-dev-90feeb951f61a80d3a8f8e5ced25b9ec78867eaf.tar.gz
[DCCP] ccid3: Fix bug in calculation of first t_nom and first t_ipi
Problem:
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ccids/ccid3.c11
-rw-r--r--net/dccp/ccids/ccid3.h2
2 files changed, 6 insertions, 7 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index fb21f2d..d7b688e 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -298,13 +298,14 @@ static int ccid3_hc_tx_send_packet(struct sock *sk,
hctx->ccid3hctx_last_win_count = 0;
hctx->ccid3hctx_t_last_win_count = now;
ccid3_hc_tx_set_state(sk, TFRC_SSTATE_NO_FBACK);
- hctx->ccid3hctx_t_ipi = TFRC_INITIAL_IPI;
- /* Set nominal send time for initial packet */
+ /* First timeout, according to [RFC 3448, 4.2], is 1 second */
+ hctx->ccid3hctx_t_ipi = USEC_PER_SEC;
+ /* Initial delta: minimum of 0.5 sec and t_gran/2 */
+ hctx->ccid3hctx_delta = TFRC_OPSYS_HALF_TIME_GRAN;
+
+ /* Set t_0 for initial packet */
hctx->ccid3hctx_t_nom = now;
- timeval_add_usecs(&hctx->ccid3hctx_t_nom,
- hctx->ccid3hctx_t_ipi);
- ccid3_calc_new_delta(hctx);
rc = 0;
break;
case TFRC_SSTATE_NO_FBACK:
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index e2e43c1..4621652 100644
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -49,8 +49,6 @@
/* Two seconds as per CCID3 spec */
#define TFRC_INITIAL_TIMEOUT (2 * USEC_PER_SEC)
-#define TFRC_INITIAL_IPI (USEC_PER_SEC / 4)
-
/* In usecs - half the scheduling granularity as per RFC3448 4.6 */
#define TFRC_OPSYS_HALF_TIME_GRAN (USEC_PER_SEC / (2 * HZ))
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