From e1b24b649a8dbd941488402b719a81618980a3c0 Mon Sep 17 00:00:00 2001 From: Mao Zhongyi Date: Mon, 4 Sep 2017 22:35:37 +0800 Subject: net/socket: Don't treat odd socket type as SOCK_STREAM In net_socket_fd_init(), the 'default' case is odd: it warns, then continues as if the socket type was SOCK_STREAM. The comment explains "this could be a eg. a pty", but that makes no sense. If @fd really was a pty, getsockopt() would fail with ENOTSOCK. If @fd was a socket, but neither SOCK_DGRAM nor SOCK_STREAM. It should not be treated as if it was SOCK_STREAM. Turn this case into an Error. If there is a genuine reason to support something like SOCK_RAW, it should be explicitly handled. Cc: jasowang@redhat.com Cc: armbru@redhat.com Cc: berrange@redhat.com Cc: armbru@redhat.com Cc: eblake@redhat.com Suggested-by: Markus Armbruster Suggested-by: Daniel P. Berrange Signed-off-by: Mao Zhongyi Reviewed-by: Markus Armbruster Signed-off-by: Jason Wang --- net/socket.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net') diff --git a/net/socket.c b/net/socket.c index 18af2ab5f3..b4c5a042a9 100644 --- a/net/socket.c +++ b/net/socket.c @@ -448,9 +448,9 @@ static NetSocketState *net_socket_fd_init(NetClientState *peer, case SOCK_STREAM: return net_socket_fd_init_stream(peer, model, name, fd, is_connected); default: - /* who knows ... this could be a eg. a pty, do warn and continue as stream */ - fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); - return net_socket_fd_init_stream(peer, model, name, fd, is_connected); + error_report("socket type=%d for fd=%d must be either" + " SOCK_DGRAM or SOCK_STREAM", so_type, fd); + closesocket(fd); } return NULL; } -- cgit v1.2.1