linux-stable.git/include/net/af_vsock.h, branch linux-5.4.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321

2019-06-05T15:37:05+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 and no later version this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 33 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Kate Stewart 
Reviewed-by: Alexios Zavras 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000435.345978407@linutronix.de
Signed-off-by: Greg Kroah-Hartman

vsock: split dwork to avoid reinitializations

2018-08-07T19:39:13+00:00

syzbot reported that we reinitialize an active delayed
work in vsock_stream_connect():

	ODEBUG: init active (active state 0) object type: timer_list hint:
	delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:1414
	WARNING: CPU: 1 PID: 11518 at lib/debugobjects.c:329
	debug_print_object+0x16a/0x210 lib/debugobjects.c:326

The pattern is apparently wrong, we should only initialize
the dealyed work once and could repeatly schedule it. So we
have to move out the initializations to allocation side.
And to avoid confusion, we can split the shared dwork
into two, instead of re-using the same one.

Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
Reported-by: 
Cc: Andy king 
Cc: Stefan Hajnoczi 
Cc: Jorgen Hansen 
Signed-off-by: Cong Wang 
Signed-off-by: David S. Miller

VSOCK: use TCP state constants for sk_state

2017-10-06T01:44:17+00:00

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

2017-10-06T01:44:17+00:00

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

2017-10-06T01:44:17+00:00

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

2017-04-24T16:35:56+00:00

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

2017-03-21T21:41:46+00:00

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

2016-08-01T23:57:29+00:00

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

2016-08-01T23:57:28+00:00

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

2016-08-01T23:57:28+00:00

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