[PULL,v2,28/41] net: introduce qemu_get_peer

Commit Message

Michael S. Tsirkin July 4, 2020, 6:30 p.m. UTC

From: Cindy Lu <[e-mail]>

This is a small function that can get the peer
from given NetClientState and queue_index

Signed-off-by: Cindy Lu <[e-mail]>
Message-Id: <[e-mail]>
Reviewed-by: Michael S. Tsirkin <[e-mail]>
Signed-off-by: Michael S. Tsirkin <[e-mail]>
Acked-by: Jason Wang <[e-mail]>
---
 include/net/net.h | 1 +
 net/net.c         | 7 +++++++
 2 files changed, 8 insertions(+)

Patch

diff --git a/include/net/net.h b/include/net/net.h
index 39085d9444..e7ef42d62b 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -176,6 +176,7 @@  void hmp_info_network(Monitor *mon, const QDict *qdict);
 void net_socket_rs_init(SocketReadState *rs,
                         SocketReadStateFinalize *finalize,
                         bool vnet_hdr);
+NetClientState *qemu_get_peer(NetClientState *nc, int queue_index);
 
 /* NIC info */
 
diff --git a/net/net.c b/net/net.c
index d1130296e1..9099a327dd 100644
--- a/net/net.c
+++ b/net/net.c
@@ -325,6 +325,13 @@  void *qemu_get_nic_opaque(NetClientState *nc)
     return nic->opaque;
 }
 
+NetClientState *qemu_get_peer(NetClientState *nc, int queue_index)
+{
+    assert(nc != NULL);
+    NetClientState *ncs = nc + queue_index;
+    return ncs->peer;
+}
+
 static void qemu_cleanup_net_client(NetClientState *nc)
 {
     QTAILQ_REMOVE(&net_clients, nc, next);