fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / net / sctp / input.c

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 70d6606..3311187 100644 (file)
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -135,13 +135,17 @@ int sctp_rcv(struct sk_buff *skb)
 
        SCTP_INC_STATS_BH(SCTP_MIB_INSCTPPACKS);
 
+       if (skb_linearize(skb))
+               goto discard_it;
+
        sh = (struct sctphdr *) skb->h.raw;
 
        /* Pull up the IP and SCTP headers. */
        __skb_pull(skb, skb->h.raw - skb->data);
        if (skb->len < sizeof(struct sctphdr))
                goto discard_it;
-       if (sctp_rcv_checksum(skb) < 0)
+       if ((skb->ip_summed != CHECKSUM_UNNECESSARY) &&
+           (sctp_rcv_checksum(skb) < 0))
                goto discard_it;
 
        skb_pull(skb, sizeof(struct sctphdr));
@@ -217,17 +221,11 @@ int sctp_rcv(struct sk_buff *skb)
                }
        }
 
-       /* SCTP seems to always need a timestamp right now (FIXME) */
-       if (skb->tstamp.off_sec == 0) {
-               __net_timestamp(skb);
-               sock_enable_timestamp(sk); 
-       }
-
        if (!xfrm_policy_check(sk, XFRM_POLICY_IN, skb, family))
                goto discard_release;
        nf_reset(skb);
 
-       if (sk_filter(sk, skb, 1))
+       if (sk_filter(sk, skb))
                 goto discard_release;
 
        /* Create an SCTP packet structure. */
@@ -254,10 +252,13 @@ int sctp_rcv(struct sk_buff *skb)
         */
        sctp_bh_lock_sock(sk);
 
-       if (sock_owned_by_user(sk))
+       if (sock_owned_by_user(sk)) {
+               SCTP_INC_STATS_BH(SCTP_MIB_IN_PKT_BACKLOG);
                sctp_add_backlog(sk, skb);
-       else
+       } else {
+               SCTP_INC_STATS_BH(SCTP_MIB_IN_PKT_SOFTIRQ);
                sctp_inq_push(&chunk->rcvr->inqueue, chunk);
+       }
 
        sctp_bh_unlock_sock(sk);
 
@@ -270,6 +271,7 @@ int sctp_rcv(struct sk_buff *skb)
        return 0;
 
 discard_it:
+       SCTP_INC_STATS_BH(SCTP_MIB_IN_PKT_DISCARDS);
        kfree_skb(skb);
        return 0;
 
@@ -383,7 +385,7 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
                         * pmtu discovery on this transport.
                         */
                        t->pathmtu = SCTP_DEFAULT_MINSEGMENT;
-                       t->param_flags = (t->param_flags & ~SPP_HB) |
+                       t->param_flags = (t->param_flags & ~SPP_PMTUD) |
                                SPP_PMTUD_DISABLE;
                } else {
                        t->pathmtu = pmtu;
@@ -724,7 +726,7 @@ static struct sctp_endpoint *__sctp_rcv_lookup_endpoint(const union sctp_addr *l
        struct sctp_endpoint *ep;
        int hash;
 
-       hash = sctp_ep_hashfn(laddr->v4.sin_port);
+       hash = sctp_ep_hashfn(ntohs(laddr->v4.sin_port));
        head = &sctp_ep_hashtable[hash];
        read_lock(&head->lock);
        for (epb = head->chain; epb; epb = epb->next) {
@@ -769,6 +771,9 @@ static void __sctp_hash_established(struct sctp_association *asoc)
 /* Add an association to the hash. Local BH-safe. */
 void sctp_hash_established(struct sctp_association *asoc)
 {
+       if (asoc->temp)
+               return;
+
        sctp_local_bh_disable();
        __sctp_hash_established(asoc);
        sctp_local_bh_enable();
@@ -802,6 +807,9 @@ static void __sctp_unhash_established(struct sctp_association *asoc)
 /* Remove association from the hash table.  Local BH-safe. */
 void sctp_unhash_established(struct sctp_association *asoc)
 {
+       if (asoc->temp)
+               return;
+
        sctp_local_bh_disable();
        __sctp_unhash_established(asoc);
        sctp_local_bh_enable();
@@ -822,7 +830,7 @@ static struct sctp_association *__sctp_lookup_association(
        /* Optimize here for direct hit, only listening connections can
         * have wildcards anyways.
         */
-       hash = sctp_assoc_hashfn(local->v4.sin_port, peer->v4.sin_port);
+       hash = sctp_assoc_hashfn(ntohs(local->v4.sin_port), ntohs(peer->v4.sin_port));
        head = &sctp_assoc_hashtable[hash];
        read_lock(&head->lock);
        for (epb = head->chain; epb; epb = epb->next) {
@@ -949,7 +957,7 @@ static struct sctp_association *__sctp_rcv_init_lookup(struct sk_buff *skb,
                if (!af)
                        continue;
 
-               af->from_addr_param(paddr, params.addr, ntohs(sh->source), 0);
+               af->from_addr_param(paddr, params.addr, sh->source, 0);
 
                asoc = __sctp_lookup_association(laddr, paddr, &transport);
                if (asoc)