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authorArnaldo Carvalho de Melo <acme@mandriva.com>2005-08-24 08:50:06 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-30 03:04:31 +0400
commit7ad07e7cf343181002c10c39d3f57a88e4903d4f (patch)
treec22067f3f443faebdcd3403fa8ce7c5c89662c60 /net/dccp/input.c
parent58e45131dc269eff0983c6d44494f9e687686900 (diff)
downloadlinux-7ad07e7cf343181002c10c39d3f57a88e4903d4f.tar.xz
[DCCP]: Implement the CLOSING timer
So that we retransmit CLOSE/CLOSEREQ packets till they elicit an answer or we hit a timeout. Most of the machinery uses TCP approaches, this code has to be polished & audited, but this is better than we had before. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/input.c')
-rw-r--r--net/dccp/input.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 85402532e4e9..02af05ec23a2 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -31,14 +31,9 @@ static void dccp_fin(struct sock *sk, struct sk_buff *skb)
static void dccp_rcv_close(struct sock *sk, struct sk_buff *skb)
{
- switch (sk->sk_state) {
- case DCCP_PARTOPEN:
- case DCCP_OPEN:
- dccp_v4_send_reset(sk, DCCP_RESET_CODE_CLOSED);
- dccp_fin(sk, skb);
- dccp_set_state(sk, DCCP_CLOSED);
- break;
- }
+ dccp_v4_send_reset(sk, DCCP_RESET_CODE_CLOSED);
+ dccp_fin(sk, skb);
+ dccp_set_state(sk, DCCP_CLOSED);
}
static void dccp_rcv_closereq(struct sock *sk, struct sk_buff *skb)
@@ -54,13 +49,8 @@ static void dccp_rcv_closereq(struct sock *sk, struct sk_buff *skb)
return;
}
- switch (sk->sk_state) {
- case DCCP_PARTOPEN:
- case DCCP_OPEN:
- dccp_set_state(sk, DCCP_CLOSING);
- dccp_send_close(sk);
- break;
- }
+ dccp_set_state(sk, DCCP_CLOSING);
+ dccp_send_close(sk, 0);
}
static inline void dccp_event_ack_recv(struct sock *sk, struct sk_buff *skb)
@@ -562,6 +552,12 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
dccp_send_sync(sk, DCCP_SKB_CB(skb)->dccpd_seq,
DCCP_PKT_SYNC);
goto discard;
+ } else if (dh->dccph_type == DCCP_PKT_CLOSEREQ) {
+ dccp_rcv_closereq(sk, skb);
+ goto discard;
+ } else if (dh->dccph_type == DCCP_PKT_CLOSE) {
+ dccp_rcv_close(sk, skb);
+ return 0;
}
switch (sk->sk_state) {