linux-imx

/*

 * VMware vSockets Driver

 *

 * Copyright (C) 2007-2012 VMware, Inc. All rights reserved.

 *

 * 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.

 */

​

#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;

}