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-rw-r--r--net/tipc/socket.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index 3afcd2a70b31..43b75b3ceced 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -38,6 +38,9 @@
#include "port.h"
#include <net/sock.h>
+#define TIPC_CONN_OK 0
+#define TIPC_CONN_PROBING 1
+
/**
* struct tipc_sock - TIPC socket structure
* @sk: socket - interacts with 'port' and with user via the socket API
@@ -45,6 +48,9 @@
* @peer_name: the peer of the connection, if any
* @conn_timeout: the time we can wait for an unresponded setup request
* @dupl_rcvcnt: number of bytes counted twice, in both backlog and rcv queue
+ * @link_cong: non-zero if owner must sleep because of link congestion
+ * @sent_unacked: # messages sent by socket, and not yet acked by peer
+ * @rcv_unacked: # messages read by user, but not yet acked back to peer
*/
struct tipc_sock {
@@ -52,6 +58,9 @@ struct tipc_sock {
struct tipc_port port;
unsigned int conn_timeout;
atomic_t dupl_rcvcnt;
+ int link_cong;
+ uint sent_unacked;
+ uint rcv_unacked;
};
static inline struct tipc_sock *tipc_sk(const struct sock *sk)
@@ -69,6 +78,13 @@ static inline void tipc_sock_wakeup(struct tipc_sock *tsk)
tsk->sk.sk_write_space(&tsk->sk);
}
+static inline int tipc_sk_conn_cong(struct tipc_sock *tsk)
+{
+ return tsk->sent_unacked >= TIPC_FLOWCTRL_WIN;
+}
+
int tipc_sk_rcv(struct sk_buff *buf);
+void tipc_sk_mcast_rcv(struct sk_buff *buf);
+
#endif