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authorXin Long <lucien.xin@gmail.com>2017-03-10 12:11:08 +0800
committerDavid S. Miller <davem@davemloft.net>2017-03-12 23:22:23 -0700
commitb444153fb5a647448c2080ad28656ad183cae4fc (patch)
tree5b1d1aa10e516cd83f28a4b9f639ad1346ed7031 /net/sctp
parent692787cef6515188f25a5b6cdf008cfe10acf89f (diff)
sctp: add support for generating add stream change event notification
This patch is to add Stream Change Event described in rfc6525 section 6.1.3. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/ulpevent.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 420d7f35256a..ec2b3e013c2f 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -911,6 +911,34 @@ struct sctp_ulpevent *sctp_ulpevent_make_assoc_reset_event(
return event;
}
+struct sctp_ulpevent *sctp_ulpevent_make_stream_change_event(
+ const struct sctp_association *asoc, __u16 flags,
+ __u32 strchange_instrms, __u32 strchange_outstrms, gfp_t gfp)
+{
+ struct sctp_stream_change_event *schange;
+ struct sctp_ulpevent *event;
+ struct sk_buff *skb;
+
+ event = sctp_ulpevent_new(sizeof(struct sctp_stream_change_event),
+ MSG_NOTIFICATION, gfp);
+ if (!event)
+ return NULL;
+
+ skb = sctp_event2skb(event);
+ schange = (struct sctp_stream_change_event *)
+ skb_put(skb, sizeof(struct sctp_stream_change_event));
+
+ schange->strchange_type = SCTP_STREAM_CHANGE_EVENT;
+ schange->strchange_flags = flags;
+ schange->strchange_length = sizeof(struct sctp_stream_change_event);
+ sctp_ulpevent_set_owner(event, asoc);
+ schange->strchange_assoc_id = sctp_assoc2id(asoc);
+ schange->strchange_instrms = strchange_instrms;
+ schange->strchange_outstrms = strchange_outstrms;
+
+ return event;
+}
+
/* Return the notification type, assuming this is a notification
* event.
*/