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-rw-r--r--net/tipc/link.c10
-rw-r--r--net/tipc/msg.h10
2 files changed, 19 insertions, 1 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 7d2bb3e..8b98faf 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1140,11 +1140,17 @@ int tipc_link_build_ack_msg(struct tipc_link *l, struct sk_buff_head *xmitq)
void tipc_link_build_reset_msg(struct tipc_link *l, struct sk_buff_head *xmitq)
{
int mtyp = RESET_MSG;
+ struct sk_buff *skb;
if (l->state == LINK_ESTABLISHING)
mtyp = ACTIVATE_MSG;
tipc_link_build_proto_msg(l, mtyp, 0, 0, 0, 0, xmitq);
+
+ /* Inform peer that this endpoint is going down if applicable */
+ skb = skb_peek_tail(xmitq);
+ if (skb && (l->state == LINK_RESET))
+ msg_set_peer_stopping(buf_msg(skb), 1);
}
/* tipc_link_build_nack_msg: prepare link nack message for transmission
@@ -1411,7 +1417,9 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
l->priority = peers_prio;
/* ACTIVATE_MSG serves as PEER_RESET if link is already down */
- if ((mtyp == RESET_MSG) || !link_is_up(l))
+ if (msg_peer_stopping(hdr))
+ rc = tipc_link_fsm_evt(l, LINK_FAILURE_EVT);
+ else if ((mtyp == RESET_MSG) || !link_is_up(l))
rc = tipc_link_fsm_evt(l, LINK_PEER_RESET_EVT);
/* ACTIVATE_MSG takes up link if it was already locally reset */
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index f34f639..58bf515 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -715,6 +715,16 @@ static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r)
msg_set_bits(m, 5, 12, 0x1, r);
}
+static inline u32 msg_peer_stopping(struct tipc_msg *m)
+{
+ return msg_bits(m, 5, 13, 0x1);
+}
+
+static inline void msg_set_peer_stopping(struct tipc_msg *m, u32 s)
+{
+ msg_set_bits(m, 5, 13, 0x1, s);
+}
+
static inline char *msg_media_addr(struct tipc_msg *m)
{
return (char *)&m->hdr[TIPC_MEDIA_INFO_OFFSET];
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