[PATCH] Update defconfig

[firefly-linux-kernel-4.4.55.git] / net / sctp / input.c

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 1662f9cc869e0a1cd463b7f3575c0c243dfc4ded..03f65de75d88280c0096f4aac8efbbe4330e9383 100644 (file)
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -141,7 +141,8 @@ int sctp_rcv(struct sk_buff *skb)
        __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));
@@ -170,7 +171,8 @@ int sctp_rcv(struct sk_buff *skb)
         * IP broadcast addresses cannot be used in an SCTP transport
         * address."
         */
-       if (!af->addr_valid(&src, NULL) || !af->addr_valid(&dest, NULL))
+       if (!af->addr_valid(&src, NULL, skb) ||
+           !af->addr_valid(&dest, NULL, skb))
                goto discard_it;
 
        asoc = __sctp_rcv_lookup(skb, &src, &dest, &transport);
@@ -226,7 +228,7 @@ int sctp_rcv(struct sk_buff *skb)
                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. */
@@ -253,10 +255,13 @@ 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);
 
@@ -269,6 +274,7 @@ 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;