torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-19 12:49:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

vsock: add VMADDR_CID_LOCAL definition

Browse Source 
The VMADDR_CID_RESERVED (1) was used by VMCI, but now it is not
used anymore, so we can reuse it for local communication
(loopback) adding the new well-know CID: VMADDR_CID_LOCAL.

Cc: Jorgen Hansen <jhansen@vmware.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
2019-12-10 11:43:03 +01:00
committed by David S. Miller
parent c5144fcbf2
commit ef343b35d4
2 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/uapi/linux/vm_sockets.h
View File

@@ -99,11 +99,13 @@
#define VMADDR_CID_HYPERVISOR 0
/* This CID is specific to VMCI and can be considered reserved (even VMCI
* doesn't use it anymore, it's a legacy value from an older release).
/* Use this as the destination CID in an address when referring to the
* local communication (loopback).
* (This was VMADDR_CID_RESERVED, but even VMCI doesn't use it anymore,
* it was a legacy value from an older release).
*/
#define VMADDR_CID_RESERVED 1
#define VMADDR_CID_LOCAL 1
/* Use this as the destination CID in an address when referring to the host
* (any process other than the hypervisor). VMCI relies on it being 2, but

2
net/vmw_vsock/vmci_transport.c
View File

@@ -648,7 +648,7 @@ static int vmci_transport_recv_dgram_cb(void *data, struct vmci_datagram *dg)
static bool vmci_transport_stream_allow(u32 cid, u32 port)
{
static const u32 non_socket_contexts[] = {
VMADDR_CID_RESERVED,
VMADDR_CID_LOCAL,
};
int i;