if (!right)
{
sb->sacked_bytes = sb->high_sacked - ack;
+ sb->last_sacked_bytes = sb->sacked_bytes
+ - (old_sacked - sb->last_bytes_delivered);
return;
}
hole = pool_elt_at_index (sb->holes, sb->head);
if (PREDICT_FALSE (sb->is_reneging))
- sb->last_bytes_delivered += hole->start - tc->snd_una;
+ {
+ sb->last_bytes_delivered += clib_min (hole->start - tc->snd_una,
+ ack - tc->snd_una);
+ sb->is_reneging = seq_lt (ack, hole->start);
+ }
while (hole && blk_index < vec_len (rcv_sacks))
{
|| sb->is_reneging || sb->holes[sb->head].start == ack);
ASSERT (sb->last_lost_bytes <= sb->lost_bytes);
ASSERT ((ack - tc->snd_una) + sb->last_sacked_bytes
- - sb->last_bytes_delivered >= sb->rxt_sacked);
+ - sb->last_bytes_delivered >= sb->rxt_sacked || sb->is_reneging);
ASSERT ((ack - tc->snd_una) >= tc->sack_sb.last_bytes_delivered
|| (tc->flags & TCP_CONN_FINSNT));
}
static void
-tcp_handle_old_ack (tcp_connection_t * tc, vlib_buffer_t * b,
- tcp_rate_sample_t * rs)
+tcp_handle_old_ack (tcp_connection_t * tc, tcp_rate_sample_t * rs)
{
if (!tcp_in_cong_recovery (tc))
return;
if (tcp_opts_sack_permitted (&tc->rcv_opts))
- tcp_rcv_sacks (tc, vnet_buffer (b)->tcp.ack_number);
+ tcp_rcv_sacks (tc, tc->snd_una);
tc->bytes_acked = 0;
if (seq_lt (vnet_buffer (b)->tcp.ack_number, tc->snd_una - tc->rcv_wnd))
return -1;
- tcp_handle_old_ack (tc, b, &rs);
+ tcp_handle_old_ack (tc, &rs);
/* Don't drop yet */
return 0;