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net: socket: remove net_init_socket()

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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.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Laurent Vivier 2023-06-09 09:27:48 +02:00 committed by Jason Wang
parent 23455ae341
commit b6aeee0298
1 changed files with 17 additions and 26 deletions
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41
net/socket.c
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@ -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;
@ -728,22 +706,35 @@ 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)) {
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;
}