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Re: [PATCH 3/3] net: socket: remove net_init_socket()
From: |
David Gibson |
Subject: |
Re: [PATCH 3/3] net: socket: remove net_init_socket() |
Date: |
Thu, 15 Jun 2023 15:10:53 +1000 |
On Fri, 9 Jun 2023 09:27:48 +0200
Laurent Vivier <lvivier@redhat.com> wrote:
> Move the file descriptor type checking before doing anything with it.
> If it's not usable, don't close it as it could be in use by another
> part of QEMU, only fail and report an error.
>
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> net/socket.c | 43 +++++++++++++++++--------------------------
> 1 file changed, 17 insertions(+), 26 deletions(-)
>
> diff --git a/net/socket.c b/net/socket.c
> index 6b1f0fec3a10..8e3702e1f3a8 100644
> --- a/net/socket.c
> +++ b/net/socket.c
> @@ -463,28 +463,6 @@ static int net_socket_fd_check(int fd, Error **errp)
> return so_type;
> }
>
> -static NetSocketState *net_socket_fd_init(NetClientState *peer,
> - const char *model, const char
> *name,
> - int fd, int is_connected,
> - const char *mc, Error **errp)
> -{
> - int so_type;
> -
> - so_type = net_socket_fd_check(fd, errp);
> - if (so_type < 0) {
> - close(fd);
> - return NULL;
> - }
> - switch(so_type) {
> - case SOCK_DGRAM:
> - return net_socket_fd_init_dgram(peer, model, name, fd, is_connected,
> - mc, errp);
> - case SOCK_STREAM:
> - return net_socket_fd_init_stream(peer, model, name, fd,
> is_connected);
> - }
> - return NULL;
> -}
> -
> static void net_socket_accept(void *opaque)
> {
> NetSocketState *s = opaque;
> @@ -728,21 +706,34 @@ int net_init_socket(const Netdev *netdev, const char
> *name,
> }
>
> if (sock->fd) {
> - int fd, ret;
> + int fd, ret, so_type;
>
> fd = monitor_fd_param(monitor_cur(), sock->fd, errp);
> if (fd == -1) {
> return -1;
> }
> + so_type = net_socket_fd_check(fd, errp);
> + if (so_type < 0) {
> + return -1;
> + }
> ret = qemu_socket_try_set_nonblock(fd);
> if (ret < 0) {
> error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d",
> name, fd);
> return -1;
> }
> - if (!net_socket_fd_init(peer, "socket", name, fd, 1, sock->mcast,
> - errp)) {
> - return -1;
> + switch (so_type) {
> + case SOCK_DGRAM:
> + if (!net_socket_fd_init_dgram(peer, "socket", name, fd, 1,
> + sock->mcast, errp)) {
> + return -1;
> + }
> + break;
> + case SOCK_STREAM:
> + if (!net_socket_fd_init_stream(peer, "socket", name, fd, 1)) {
> + return -1;
> + }
> + break;
> }
> return 0;
> }
> --
> 2.39.2
>
--
David Gibson <dgibson@redhat.com>
Principal Software Engineer, Virtualization, Red Hat