kernel/include/net/af_vsock.h, branch linux-4.15.y

VSOCK: use TCP state constants for sk_state

2017-10-06T01:44:17Z

There are two state fields: socket->state and sock->sk_state. The socket->state field uses SS_UNCONNECTED, SS_CONNECTED, etc while the sock->sk_state typically uses values that match TCP state constants (TCP_CLOSE, TCP_ESTABLISHED). AF_VSOCK does not follow this convention and instead uses SS_* constants for both fields. The sk_state field will be exposed to userspace through the vsock_diag interface for ss(8), netstat(8), and other programs. This patch switches sk_state to TCP state constants so that the meaning of this field is consistent with other address families. Not just AF_INET and AF_INET6 use the TCP constants, AF_UNIX and others do too. The following mapping was used to convert the code: SS_FREE -> TCP_CLOSE SS_UNCONNECTED -> TCP_CLOSE SS_CONNECTING -> TCP_SYN_SENT SS_CONNECTED -> TCP_ESTABLISHED SS_DISCONNECTING -> TCP_CLOSING VSOCK_SS_LISTEN -> TCP_LISTEN In __vsock_create() the sk_state initialization was dropped because sock_init_data() already initializes sk_state to TCP_CLOSE. Signed-off-by: Stefan Hajnoczi Signed-off-by: David S. Miller

VSOCK: move __vsock_in_bound/connected_table() to af_vsock.h

2017-10-06T01:44:17Z

The vsock_diag.ko module will need to check socket table membership. Signed-off-by: Stefan Hajnoczi Signed-off-by: David S. Miller

VSOCK: export socket tables for sock_diag interface

2017-10-06T01:44:17Z

The socket table symbols need to be exported from vsock.ko so that the vsock_diag.ko module will be able to traverse sockets. Signed-off-by: Stefan Hajnoczi Signed-off-by: David S. Miller

VSOCK: Add vsockmon tap functions

2017-04-24T16:35:56Z

Add tap functions that can be used by the vsock transports to deliver packets to vsockmon virtual network devices. Signed-off-by: Gerard Garcia Signed-off-by: Stefan Hajnoczi Reviewed-by: Jorgen Hansen Signed-off-by: David S. Miller

vhost-vsock: add pkt cancel capability

2017-03-21T21:41:46Z

To allow canceling all packets of a connection. Reviewed-by: Stefan Hajnoczi Reviewed-by: Jorgen Hansen Signed-off-by: Peng Tao Signed-off-by: David S. Miller

VSOCK: Introduce virtio_vsock_common.ko

2016-08-01T23:57:29Z

This module contains the common code and header files for the following virtio_transporto and vhost_vsock kernel modules. Signed-off-by: Asias He Signed-off-by: Claudio Imbrenda Signed-off-by: Stefan Hajnoczi Signed-off-by: Michael S. Tsirkin

VSOCK: defer sock removal to transports

2016-08-01T23:57:28Z

The virtio transport will implement graceful shutdown and the related SO_LINGER socket option. This requires orphaning the sock but keeping it in the table of connections after .release(). This patch adds the vsock_remove_sock() function and leaves it up to the transport when to remove the sock. Signed-off-by: Stefan Hajnoczi Signed-off-by: Michael S. Tsirkin

VSOCK: transport-specific vsock_transport functions

2016-08-01T23:57:28Z

struct vsock_transport contains function pointers called by AF_VSOCK core code. The transport may want its own transport-specific function pointers and they can be added after struct vsock_transport. Allow the transport to fetch vsock_transport. It can downcast it to access transport-specific function pointers. The virtio transport will use this. Signed-off-by: Stefan Hajnoczi Signed-off-by: Michael S. Tsirkin

VSOCK: define VSOCK_SS_LISTEN once only

2015-11-01T17:14:47Z

The SS_LISTEN socket state is defined by both af_vsock.c and vmci_transport.c. This is risky since the value could be changed in one file and the other would be out of sync. Rename from SS_LISTEN to VSOCK_SS_LISTEN since the constant is not part of enum socket_state (SS_CONNECTED, ...). This way it is clear that the constant is vsock-specific. The big text reflow in af_vsock.c was necessary to keep to the maximum line length. Text is unchanged except for s/SS_LISTEN/VSOCK_SS_LISTEN/. Signed-off-by: Stefan Hajnoczi Signed-off-by: David S. Miller

net: Pass kern from net_proto_family.create to sk_alloc

2015-05-11T14:50:17Z

In preparation for changing how struct net is refcounted on kernel sockets pass the knowledge that we are creating a kernel socket from sock_create_kern through to sk_alloc. Signed-off-by: "Eric W. Biederman" Signed-off-by: David S. Miller