tests: Communicate bind() operation over test socket

Populate the implemenetation for the bind callback, sending the address
data to the test socket.

Signed-off-by: Jeremy Kerr <[email protected]>

tests/conftest.py

@@ -322,6 +322,16 @@ async def recv_msg(self, data):
             level = int.from_bytes(level, byteorder = sys.byteorder)
             optname = int.from_bytes(optname, byteorder = sys.byteorder)
             await self.handle_setsockopt(level, optname, optval)
+        elif typ == 3:
+            # bind
+            addr = data[:MAX_SOCKADDR_SIZE]
+            addrlen = int.from_bytes(
+                    data[MAX_SOCKADDR_SIZE:MAX_SOCKADDR_SIZE+4],
+                    byteorder = sys.byteorder
+                )
+            addr = addr[:addrlen]
+            await self.handle_bind(addr)
+
         else:
             print(f"unknown message type {typ}")
 
@@ -332,6 +342,9 @@ async def send(self, addr, data):
         buf = struct.pack("@I", 0) + addr + struct.pack("@I", addrlen) + data
         await self.sock.send(buf)
 
+    async def handle_bind(self, addr):
+        pass
+
 class MCTPSockAddr:
     base_addr_fmt = "@HHiBBBB"
     ext_addr_fmt = "@iB3c" # just the header here, we append the lladdr data

tests/mctp-ops-test.c

@@ -83,6 +83,30 @@ static int mctp_op_netlink_socket(void)
 
 static int mctp_op_bind(int sd, struct sockaddr *addr, socklen_t addrlen)
 {
+	struct msghdr msg = { 0 };
+	struct sock_msg sock_msg;
+	struct iovec iov;
+	ssize_t rc;
+
+	sock_msg.type = SOCK_BIND;
+	sock_msg.bind.addrlen = addrlen;
+	memcpy(&sock_msg.bind.addr.buf, addr, addrlen);
+
+	iov.iov_base = &sock_msg;
+	iov.iov_len = sizeof(sock_msg);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	rc = sendmsg(sd, &msg, 0);
+	if (rc < 0)
+		return rc;
+
+	if (rc < (int)sizeof(sock_msg)) {
+		errno = EPROTO;
+		return -1;
+	}
+
 	return 0;
 }
 

tests/test-proto.h

@@ -31,6 +31,7 @@ struct sock_msg {
 		SOCK_RECV,
 		SOCK_SEND,
 		SOCK_SETSOCKOPT,
+		SOCK_BIND,
 	} type;
 	union {
 		struct sock_msg_recv {
@@ -48,6 +49,10 @@ struct sock_msg {
 			int optname;
 			uint8_t optdata[];
 		} setsockopt;
+		struct sock_msg_bind {
+			union sock_msg_sockaddr addr;
+			socklen_t addrlen;
+		} bind;
 	};
 };