linux/net/vmw_vsock/vsock_addr.c
Thomas Gleixner 685a6bf848 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321
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 <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000435.345978407@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:05 +02:00

68 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* VMware vSockets Driver
*
* Copyright (C) 2007-2012 VMware, Inc. All rights reserved.
*/
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/stddef.h>
#include <net/sock.h>
#include <net/vsock_addr.h>
void vsock_addr_init(struct sockaddr_vm *addr, u32 cid, u32 port)
{
memset(addr, 0, sizeof(*addr));
addr->svm_family = AF_VSOCK;
addr->svm_cid = cid;
addr->svm_port = port;
}
EXPORT_SYMBOL_GPL(vsock_addr_init);
int vsock_addr_validate(const struct sockaddr_vm *addr)
{
if (!addr)
return -EFAULT;
if (addr->svm_family != AF_VSOCK)
return -EAFNOSUPPORT;
if (addr->svm_zero[0] != 0)
return -EINVAL;
return 0;
}
EXPORT_SYMBOL_GPL(vsock_addr_validate);
bool vsock_addr_bound(const struct sockaddr_vm *addr)
{
return addr->svm_port != VMADDR_PORT_ANY;
}
EXPORT_SYMBOL_GPL(vsock_addr_bound);
void vsock_addr_unbind(struct sockaddr_vm *addr)
{
vsock_addr_init(addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
}
EXPORT_SYMBOL_GPL(vsock_addr_unbind);
bool vsock_addr_equals_addr(const struct sockaddr_vm *addr,
const struct sockaddr_vm *other)
{
return addr->svm_cid == other->svm_cid &&
addr->svm_port == other->svm_port;
}
EXPORT_SYMBOL_GPL(vsock_addr_equals_addr);
int vsock_addr_cast(const struct sockaddr *addr,
size_t len, struct sockaddr_vm **out_addr)
{
if (len < sizeof(**out_addr))
return -EFAULT;
*out_addr = (struct sockaddr_vm *)addr;
return vsock_addr_validate(*out_addr);
}
EXPORT_SYMBOL_GPL(vsock_addr_cast);