summaryrefslogtreecommitdiffstats
path: root/net/sctp/socket.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c48
1 files changed, 44 insertions, 4 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5fb3a8c9792e..0f01e5d8a24f 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1100,6 +1100,15 @@ static int __sctp_connect(struct sock* sk,
goto out_free;
}
+ /* In case the user of sctp_connectx() wants an association
+ * id back, assign one now.
+ */
+ if (assoc_id) {
+ err = sctp_assoc_set_id(asoc, GFP_KERNEL);
+ if (err < 0)
+ goto out_free;
+ }
+
err = sctp_primitive_ASSOCIATE(asoc, NULL);
if (err < 0) {
goto out_free;
@@ -1120,7 +1129,7 @@ static int __sctp_connect(struct sock* sk,
timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
err = sctp_wait_for_connect(asoc, &timeo);
- if (!err && assoc_id)
+ if ((err == 0 || err == -EINPROGRESS) && assoc_id)
*assoc_id = asoc->assoc_id;
/* Don't free association on exit. */
@@ -1264,6 +1273,34 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
return assoc_id;
}
+/*
+ * New (hopefully final) interface for the API. The option buffer is used
+ * both for the returned association id and the addresses.
+ */
+SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ sctp_assoc_t assoc_id = 0;
+ int err = 0;
+
+ if (len < sizeof(assoc_id))
+ return -EINVAL;
+
+ err = __sctp_setsockopt_connectx(sk,
+ (struct sockaddr __user *)(optval + sizeof(assoc_id)),
+ len - sizeof(assoc_id), &assoc_id);
+
+ if (err == 0 || err == -EINPROGRESS) {
+ if (copy_to_user(optval, &assoc_id, sizeof(assoc_id)))
+ return -EFAULT;
+ if (put_user(sizeof(assoc_id), optlen))
+ return -EFAULT;
+ }
+
+ return err;
+}
+
/* API 3.1.4 close() - UDP Style Syntax
* Applications use close() to perform graceful shutdown (as described in
* Section 10.1 of [SCTP]) on ALL the associations currently represented
@@ -1844,7 +1881,7 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
len -= skb_len;
__skb_pull(skb, skb_len);
- for (list = skb_shinfo(skb)->frag_list; list; list = list->next) {
+ skb_walk_frags(skb, list) {
rlen = sctp_skb_pull(list, len);
skb->len -= (len-rlen);
skb->data_len -= (len-rlen);
@@ -5578,6 +5615,9 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
retval = sctp_getsockopt_local_addrs(sk, len, optval,
optlen);
break;
+ case SCTP_SOCKOPT_CONNECTX3:
+ retval = sctp_getsockopt_connectx3(sk, len, optval, optlen);
+ break;
case SCTP_DEFAULT_SEND_PARAM:
retval = sctp_getsockopt_default_send_param(sk, len,
optval, optlen);
@@ -6620,7 +6660,7 @@ static void sctp_sock_rfree_frag(struct sk_buff *skb)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_sock_rfree_frag(frag);
done:
@@ -6635,7 +6675,7 @@ static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_skb_set_owner_r_frag(frag, sk);
done: