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authorXin Long <lucien.xin@gmail.com>2017-02-17 07:45:38 +0300
committerDavid S. Miller <davem@davemloft.net>2017-02-20 02:17:59 +0300
commit35ea82d611da59f8bea44a37996b3b11bb1d3fd7 (patch)
treefd3a6ac66c353dabe1b372b461a3629e7cd1d4f9 /net/sctp/ulpevent.c
parentbd4b9f8b4af7be15fd162276ec9a2a1d49f10270 (diff)
downloadlinux-35ea82d611da59f8bea44a37996b3b11bb1d3fd7.tar.xz
sctp: add support for generating stream ssn reset event notification
This patch is to add Stream Reset Event described in rfc6525 section 6.1.1. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/ulpevent.c')
-rw-r--r--net/sctp/ulpevent.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index bea00058ce35..c8881bc542a0 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -854,6 +854,35 @@ struct sctp_ulpevent *sctp_ulpevent_make_sender_dry_event(
return event;
}
+struct sctp_ulpevent *sctp_ulpevent_make_stream_reset_event(
+ const struct sctp_association *asoc, __u16 flags, __u16 stream_num,
+ __u16 *stream_list, gfp_t gfp)
+{
+ struct sctp_stream_reset_event *sreset;
+ struct sctp_ulpevent *event;
+ struct sk_buff *skb;
+ int length, i;
+
+ length = sizeof(struct sctp_stream_reset_event) + 2 * stream_num;
+ event = sctp_ulpevent_new(length, MSG_NOTIFICATION, gfp);
+ if (!event)
+ return NULL;
+
+ skb = sctp_event2skb(event);
+ sreset = (struct sctp_stream_reset_event *)skb_put(skb, length);
+
+ sreset->strreset_type = SCTP_STREAM_RESET_EVENT;
+ sreset->strreset_flags = flags;
+ sreset->strreset_length = length;
+ sctp_ulpevent_set_owner(event, asoc);
+ sreset->strreset_assoc_id = sctp_assoc2id(asoc);
+
+ for (i = 0; i < stream_num; i++)
+ sreset->strreset_stream_list[i] = ntohs(stream_list[i]);
+
+ return event;
+}
+
/* Return the notification type, assuming this is a notification
* event.
*/