From 173372162ddbd414cc471c1a3a52ad7ea279aaf4 Mon Sep 17 00:00:00 2001 From: Vladislav Yasevich Date: Thu, 28 Apr 2005 11:57:54 -0700 Subject: [SCTP] Fix SCTP_ASSOCINFO getsockopt for 1-1 style Signed-off-by: Vladislav Yasevich Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller --- net/sctp/socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/sctp/socket.c') diff --git a/net/sctp/socket.c b/net/sctp/socket.c index e8c210182571..32f2249411fa 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3473,7 +3473,7 @@ static int sctp_getsockopt_associnfo(struct sock *sk, int len, return -EINVAL; /* Values correspoinding to the specific association */ - if (assocparams.sasoc_assoc_id != 0) { + if (asoc) { assocparams.sasoc_asocmaxrxt = asoc->max_retrans; assocparams.sasoc_peer_rwnd = asoc->peer.rwnd; assocparams.sasoc_local_rwnd = asoc->a_rwnd; -- cgit From 4eb701dfc618491c9b97377df6e61de36dfc39ce Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Thu, 28 Apr 2005 12:02:04 -0700 Subject: [SCTP] Fix SCTP sendbuffer accouting. - Include chunk and skb sizes in sendbuffer accounting. - 2 policies are supported. 0: per socket accouting, 1: per association accounting DaveM: I've made the default per-socket. Signed-off-by: Neil Horman Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller --- net/sctp/socket.c | 36 +++++++++++++++++++++++++++++++----- 1 file changed, 31 insertions(+), 5 deletions(-) (limited to 'net/sctp/socket.c') diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 32f2249411fa..0b338eca6dc0 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -115,9 +115,17 @@ static inline int sctp_wspace(struct sctp_association *asoc) struct sock *sk = asoc->base.sk; int amt = 0; - amt = sk->sk_sndbuf - asoc->sndbuf_used; + if (asoc->ep->sndbuf_policy) { + /* make sure that no association uses more than sk_sndbuf */ + amt = sk->sk_sndbuf - asoc->sndbuf_used; + } else { + /* do socket level accounting */ + amt = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc); + } + if (amt < 0) amt = 0; + return amt; } @@ -138,12 +146,21 @@ static inline void sctp_set_owner_w(struct sctp_chunk *chunk) /* The sndbuf space is tracked per association. */ sctp_association_hold(asoc); + skb_set_owner_w(chunk->skb, sk); + chunk->skb->destructor = sctp_wfree; /* Save the chunk pointer in skb for sctp_wfree to use later. */ *((struct sctp_chunk **)(chunk->skb->cb)) = chunk; - asoc->sndbuf_used += SCTP_DATA_SNDSIZE(chunk); - sk->sk_wmem_queued += SCTP_DATA_SNDSIZE(chunk); + asoc->sndbuf_used += SCTP_DATA_SNDSIZE(chunk) + + sizeof(struct sk_buff) + + sizeof(struct sctp_chunk); + + sk->sk_wmem_queued += SCTP_DATA_SNDSIZE(chunk) + + sizeof(struct sk_buff) + + sizeof(struct sctp_chunk); + + atomic_add(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc); } /* Verify that this is a valid address. */ @@ -4422,8 +4439,17 @@ static void sctp_wfree(struct sk_buff *skb) chunk = *((struct sctp_chunk **)(skb->cb)); asoc = chunk->asoc; sk = asoc->base.sk; - asoc->sndbuf_used -= SCTP_DATA_SNDSIZE(chunk); - sk->sk_wmem_queued -= SCTP_DATA_SNDSIZE(chunk); + asoc->sndbuf_used -= SCTP_DATA_SNDSIZE(chunk) + + sizeof(struct sk_buff) + + sizeof(struct sctp_chunk); + + sk->sk_wmem_queued -= SCTP_DATA_SNDSIZE(chunk) + + sizeof(struct sk_buff) + + sizeof(struct sctp_chunk); + + atomic_sub(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc); + + sock_wfree(skb); __sctp_write_space(asoc); sctp_association_put(asoc); -- cgit