Re: [RFC PATCH v5 01/19] af_vsock: update functions for connectible socket

Arseny Krasnov
2021-02-22T10:59:28Z

On 22.02.2021 13:50, Stefano Garzarella wrote:
> On Thu, Feb 18, 2021 at 08:36:03AM +0300, Arseny Krasnov wrote:
>> This prepares af_vsock.c for SEQPACKET support: some functions such
>> as setsockopt(), getsockopt(), connect(), recvmsg(), sendmsg() are
>> shared between both types of sockets, so rename them in general
>> manner.
>>
>> Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
>> ---
>> net/vmw_vsock/af_vsock.c | 64 +++++++++++++++++++++-------------------
>> 1 file changed, 34 insertions(+), 30 deletions(-)
> IIRC I had already given my R-b to this patch. Please carry it over when
> you post a new version.
>
> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
>
> Thanks,
> Stefano
Ack, sorry, didn't know that
>
>> diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
>> index 5546710d8ac1..656370e11707 100644
>> --- a/net/vmw_vsock/af_vsock.c
>> +++ b/net/vmw_vsock/af_vsock.c
>> @@ -604,8 +604,8 @@ static void vsock_pending_work(struct work_struct *work)
>>
>> /**** SOCKET OPERATIONS ****/
>>
>> -static int __vsock_bind_stream(struct vsock_sock *vsk,
>> - struct sockaddr_vm *addr)
>> +static int __vsock_bind_connectible(struct vsock_sock *vsk,
>> + struct sockaddr_vm *addr)
>> {
>> static u32 port;
>> struct sockaddr_vm new_addr;
>> @@ -685,7 +685,7 @@ static int __vsock_bind(struct sock *sk, struct sockaddr_vm *addr)
>> switch (sk->sk_socket->type) {
>> case SOCK_STREAM:
>> spin_lock_bh(&vsock_table_lock);
>> - retval = __vsock_bind_stream(vsk, addr);
>> + retval = __vsock_bind_connectible(vsk, addr);
>> spin_unlock_bh(&vsock_table_lock);
>> break;
>>
>> @@ -767,6 +767,11 @@ static struct sock *__vsock_create(struct net *net,
>> return sk;
>> }
>>
>> +static bool sock_type_connectible(u16 type)
>> +{
>> + return type == SOCK_STREAM;
>> +}
>> +
>> static void __vsock_release(struct sock *sk, int level)
>> {
>> if (sk) {
>> @@ -785,7 +790,7 @@ static void __vsock_release(struct sock *sk, int level)
>>
>> if (vsk->transport)
>> vsk->transport->release(vsk);
>> - else if (sk->sk_type == SOCK_STREAM)
>> + else if (sock_type_connectible(sk->sk_type))
>> vsock_remove_sock(vsk);
>>
>> sock_orphan(sk);
>> @@ -947,7 +952,7 @@ static int vsock_shutdown(struct socket *sock, int mode)
>> lock_sock(sk);
>> if (sock->state == SS_UNCONNECTED) {
>> err = -ENOTCONN;
>> - if (sk->sk_type == SOCK_STREAM)
>> + if (sock_type_connectible(sk->sk_type))
>> goto out;
>> } else {
>> sock->state = SS_DISCONNECTING;
>> @@ -960,7 +965,7 @@ static int vsock_shutdown(struct socket *sock, int mode)
>> sk->sk_shutdown |= mode;
>> sk->sk_state_change(sk);
>>
>> - if (sk->sk_type == SOCK_STREAM) {
>> + if (sock_type_connectible(sk->sk_type)) {
>> sock_reset_flag(sk, SOCK_DONE);
>> vsock_send_shutdown(sk, mode);
>> }
>> @@ -1015,7 +1020,7 @@ static __poll_t vsock_poll(struct file *file, struct socket *sock,
>> if (!(sk->sk_shutdown & SEND_SHUTDOWN))
>> mask |= EPOLLOUT | EPOLLWRNORM | EPOLLWRBAND;
>>
>> - } else if (sock->type == SOCK_STREAM) {
>> + } else if (sock_type_connectible(sk->sk_type)) {
>> const struct vsock_transport *transport;
>>
>> lock_sock(sk);
>> @@ -1262,8 +1267,8 @@ static void vsock_connect_timeout(struct work_struct *work)
>> sock_put(sk);
>> }
>>
>> -static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr,
>> - int addr_len, int flags)
>> +static int vsock_connect(struct socket *sock, struct sockaddr *addr,
>> + int addr_len, int flags)
>> {
>> int err;
>> struct sock *sk;
>> @@ -1413,7 +1418,7 @@ static int vsock_accept(struct socket *sock, struct socket *newsock, int flags,
>>
>> lock_sock(listener);
>>
>> - if (sock->type != SOCK_STREAM) {
>> + if (!sock_type_connectible(sock->type)) {
>> err = -EOPNOTSUPP;
>> goto out;
>> }
>> @@ -1490,7 +1495,7 @@ static int vsock_listen(struct socket *sock, int backlog)
>>
>> lock_sock(sk);
>>
>> - if (sock->type != SOCK_STREAM) {
>> + if (!sock_type_connectible(sk->sk_type)) {
>> err = -EOPNOTSUPP;
>> goto out;
>> }
>> @@ -1534,11 +1539,11 @@ static void vsock_update_buffer_size(struct vsock_sock *vsk,
>> vsk->buffer_size = val;
>> }
>>
>> -static int vsock_stream_setsockopt(struct socket *sock,
>> - int level,
>> - int optname,
>> - sockptr_t optval,
>> - unsigned int optlen)
>> +static int vsock_connectible_setsockopt(struct socket *sock,
>> + int level,
>> + int optname,
>> + sockptr_t optval,
>> + unsigned int optlen)
>> {
>> int err;
>> struct sock *sk;
>> @@ -1616,10 +1621,10 @@ static int vsock_stream_setsockopt(struct socket *sock,
>> return err;
>> }
>>
>> -static int vsock_stream_getsockopt(struct socket *sock,
>> - int level, int optname,
>> - char __user *optval,
>> - int __user *optlen)
>> +static int vsock_connectible_getsockopt(struct socket *sock,
>> + int level, int optname,
>> + char __user *optval,
>> + int __user *optlen)
>> {
>> int err;
>> int len;
>> @@ -1687,8 +1692,8 @@ static int vsock_stream_getsockopt(struct socket *sock,
>> return 0;
>> }
>>
>> -static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
>> - size_t len)
>> +static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg,
>> + size_t len)
>> {
>> struct sock *sk;
>> struct vsock_sock *vsk;
>> @@ -1827,10 +1832,9 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg,
>> return err;
>> }
>>
>> -
>> static int
>> -vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
>> - int flags)
>> +vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
>> + int flags)
>> {
>> struct sock *sk;
>> struct vsock_sock *vsk;
>> @@ -2006,7 +2010,7 @@ static const struct proto_ops vsock_stream_ops = {
>> .owner = THIS_MODULE,
>> .release = vsock_release,
>> .bind = vsock_bind,
>> - .connect = vsock_stream_connect,
>> + .connect = vsock_connect,
>> .socketpair = sock_no_socketpair,
>> .accept = vsock_accept,
>> .getname = vsock_getname,
>> @@ -2014,10 +2018,10 @@ static const struct proto_ops vsock_stream_ops = {
>> .ioctl = sock_no_ioctl,
>> .listen = vsock_listen,
>> .shutdown = vsock_shutdown,
>> - .setsockopt = vsock_stream_setsockopt,
>> - .getsockopt = vsock_stream_getsockopt,
>> - .sendmsg = vsock_stream_sendmsg,
>> - .recvmsg = vsock_stream_recvmsg,
>> + .setsockopt = vsock_connectible_setsockopt,
>> + .getsockopt = vsock_connectible_getsockopt,
>> + .sendmsg = vsock_connectible_sendmsg,
>> + .recvmsg = vsock_connectible_recvmsg,
>> .mmap = sock_no_mmap,
>> .sendpage = sock_no_sendpage,
>> };
>> --
>> 2.25.1
>>
>