sctp: label accepted/peeled off sockets

[cascardo/linux.git] / net / sctp / socket.c

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 03c8256..529ed35 100644 (file)
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1301,8 +1301,9 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
                                      int addrs_size,
                                      sctp_assoc_t *assoc_id)
 {
-       int err = 0;
        struct sockaddr *kaddrs;
+       gfp_t gfp = GFP_KERNEL;
+       int err = 0;
 
        pr_debug("%s: sk:%p addrs:%p addrs_size:%d\n",
                 __func__, sk, addrs, addrs_size);
@@ -1315,7 +1316,9 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
                return -EFAULT;
 
        /* Alloc space for the address array in kernel memory.  */
-       kaddrs = kmalloc(addrs_size, GFP_KERNEL);
+       if (sk->sk_socket->file)
+               gfp = GFP_USER | __GFP_NOWARN;
+       kaddrs = kmalloc(addrs_size, gfp);
        if (unlikely(!kaddrs))
                return -ENOMEM;
 
@@ -1952,8 +1955,6 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
 
        /* Now send the (possibly) fragmented message. */
        list_for_each_entry(chunk, &datamsg->chunks, frag_list) {
-               sctp_chunk_hold(chunk);
-
                /* Do accounting for the write space.  */
                sctp_set_owner_w(chunk);
 
@@ -1966,15 +1967,13 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
         * breaks.
         */
        err = sctp_primitive_SEND(net, asoc, datamsg);
+       sctp_datamsg_put(datamsg);
        /* Did the lower layer accept the chunk? */
-       if (err) {
-               sctp_datamsg_free(datamsg);
+       if (err)
                goto out_free;
-       }
 
        pr_debug("%s: we sent primitively\n", __func__);
 
-       sctp_datamsg_put(datamsg);
        err = msg_len;
 
        if (unlikely(wait_connect)) {
@@ -5777,7 +5776,7 @@ static int sctp_getsockopt_assoc_ids(struct sock *sk, int len,
 
        len = sizeof(struct sctp_assoc_ids) + sizeof(sctp_assoc_t) * num;
 
-       ids = kmalloc(len, GFP_KERNEL);
+       ids = kmalloc(len, GFP_USER | __GFP_NOWARN);
        if (unlikely(!ids))
                return -ENOMEM;
 
@@ -7167,6 +7166,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
        newsk->sk_type = sk->sk_type;
        newsk->sk_bound_dev_if = sk->sk_bound_dev_if;
        newsk->sk_flags = sk->sk_flags;
+       newsk->sk_tsflags = sk->sk_tsflags;
        newsk->sk_no_check_tx = sk->sk_no_check_tx;
        newsk->sk_no_check_rx = sk->sk_no_check_rx;
        newsk->sk_reuse = sk->sk_reuse;
@@ -7199,6 +7199,11 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
        newinet->mc_ttl = 1;
        newinet->mc_index = 0;
        newinet->mc_list = NULL;
+
+       if (newsk->sk_flags & SK_FLAGS_TIMESTAMP)
+               net_enable_timestamp();
+
+       security_sk_clone(sk, newsk);
 }
 
 static inline void sctp_copy_descendant(struct sock *sk_to,