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vsock: add vsock_create_connected() called by transports

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All transports call __vsock_create() with the same parameters,
most of them depending on the parent socket. In order to simplify
the VSOCK core APIs exposed to the transports, this patch adds
the vsock_create_connected() callable from transports to create
a new socket when a connection request is received.
We also unexported the __vsock_create().

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefano Garzarella 2019-11-14 10:57:43 +01:00 committed by David S. Miller
parent b9f2b0ffde
commit b9ca2f5ff7
5 changed files with 17 additions and 17 deletions
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5
include/net/af_vsock.h
View file

@ -76,10 +76,7 @@ struct vsock_sock {
s64 vsock_stream_has_data(struct vsock_sock *vsk);
s64 vsock_stream_has_space(struct vsock_sock *vsk);
struct sock *__vsock_create(struct net *net,
struct socket *sock,
struct sock *parent,
gfp_t priority, unsigned short type, int kern);
struct sock *vsock_create_connected(struct sock *parent);
/**** TRANSPORT ****/

20
net/vmw_vsock/af_vsock.c
View file

@ -567,12 +567,12 @@ static int __vsock_bind(struct sock *sk, struct sockaddr_vm *addr)
static void vsock_connect_timeout(struct work_struct *work);
struct sock *__vsock_create(struct net *net,
struct socket *sock,
struct sock *parent,
gfp_t priority,
unsigned short type,
int kern)
static struct sock *__vsock_create(struct net *net,
struct socket *sock,
struct sock *parent,
gfp_t priority,
unsigned short type,
int kern)
{
struct sock *sk;
struct vsock_sock *psk;
@ -639,7 +639,6 @@ struct sock *__vsock_create(struct net *net,
return sk;
}
EXPORT_SYMBOL_GPL(__vsock_create);
static void __vsock_release(struct sock *sk, int level)
{
@ -703,6 +702,13 @@ static int vsock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
return err;
}
struct sock *vsock_create_connected(struct sock *parent)
{
return __vsock_create(sock_net(parent), NULL, parent, GFP_KERNEL,
parent->sk_type, 0);
}
EXPORT_SYMBOL_GPL(vsock_create_connected);
s64 vsock_stream_has_data(struct vsock_sock *vsk)
{
return vsk->transport->stream_has_data(vsk);

3
net/vmw_vsock/hyperv_transport.c
View file

@ -360,8 +360,7 @@ static void hvs_open_connection(struct vmbus_channel *chan)
if (sk->sk_ack_backlog >= sk->sk_max_ack_backlog)
goto out;
new = __vsock_create(sock_net(sk), NULL, sk, GFP_KERNEL,
sk->sk_type, 0);
new = vsock_create_connected(sk);
if (!new)
goto out;

3
net/vmw_vsock/virtio_transport_common.c
View file

@ -1004,8 +1004,7 @@ virtio_transport_recv_listen(struct sock *sk, struct virtio_vsock_pkt *pkt)
return -ENOMEM;
}
child = __vsock_create(sock_net(sk), NULL, sk, GFP_KERNEL,
sk->sk_type, 0);
child = vsock_create_connected(sk);
if (!child) {
virtio_transport_reset(vsk, pkt);
return -ENOMEM;

3
net/vmw_vsock/vmci_transport.c
View file

@ -1004,8 +1004,7 @@ static int vmci_transport_recv_listen(struct sock *sk,
return -ECONNREFUSED;
}
pending = __vsock_create(sock_net(sk), NULL, sk, GFP_KERNEL,
sk->sk_type, 0);
pending = vsock_create_connected(sk);
if (!pending) {
vmci_transport_send_reset(sk, pkt);
return -ENOMEM;