2 * VMware vSockets Driver
4 * Copyright (C) 2007-2012 VMware, Inc. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation version 2 and no later version.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 #include <linux/types.h>
17 #include <linux/socket.h>
18 #include <linux/stddef.h>
20 #include <net/vsock_addr.h>
22 void vsock_addr_init(struct sockaddr_vm *addr, u32 cid, u32 port)
24 memset(addr, 0, sizeof(*addr));
25 addr->svm_family = AF_VSOCK;
27 addr->svm_port = port;
29 EXPORT_SYMBOL_GPL(vsock_addr_init);
31 int vsock_addr_validate(const struct sockaddr_vm *addr)
36 if (addr->svm_family != AF_VSOCK)
39 if (addr->svm_zero[0] != 0)
44 EXPORT_SYMBOL_GPL(vsock_addr_validate);
46 bool vsock_addr_bound(const struct sockaddr_vm *addr)
48 return addr->svm_port != VMADDR_PORT_ANY;
50 EXPORT_SYMBOL_GPL(vsock_addr_bound);
52 void vsock_addr_unbind(struct sockaddr_vm *addr)
54 vsock_addr_init(addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
56 EXPORT_SYMBOL_GPL(vsock_addr_unbind);
58 bool vsock_addr_equals_addr(const struct sockaddr_vm *addr,
59 const struct sockaddr_vm *other)
61 return addr->svm_cid == other->svm_cid &&
62 addr->svm_port == other->svm_port;
64 EXPORT_SYMBOL_GPL(vsock_addr_equals_addr);
66 int vsock_addr_cast(const struct sockaddr *addr,
67 size_t len, struct sockaddr_vm **out_addr)
69 if (len < sizeof(**out_addr))
72 *out_addr = (struct sockaddr_vm *)addr;
73 return vsock_addr_validate(*out_addr);
75 EXPORT_SYMBOL_GPL(vsock_addr_cast);