ib_iwpm_util.c revision 331769 
1/*
2 * Copyright (c) 2014 Chelsio, Inc. All rights reserved.
3 * Copyright (c) 2014 Intel Corporation. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses.  You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 *     Redistribution and use in source and binary forms, with or
12 *     without modification, are permitted provided that the following
13 *     conditions are met:
14 *
15 *      - Redistributions of source code must retain the above
16 *	  copyright notice, this list of conditions and the following
17 *	  disclaimer.
18 *
19 *      - Redistributions in binary form must reproduce the above
20 *	  copyright notice, this list of conditions and the following
21 *	  disclaimer in the documentation and/or other materials
22 *	  provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#include "iwpm_util.h"
35
36#define IWPM_MAPINFO_HASH_SIZE	512
37#define IWPM_MAPINFO_HASH_MASK	(IWPM_MAPINFO_HASH_SIZE - 1)
38#define IWPM_REMINFO_HASH_SIZE	64
39#define IWPM_REMINFO_HASH_MASK	(IWPM_REMINFO_HASH_SIZE - 1)
40#define IWPM_MSG_SIZE		512
41
42int iwpm_compare_sockaddr(struct sockaddr_storage *a_sockaddr,
43				struct sockaddr_storage *b_sockaddr)
44{
45	if (a_sockaddr->ss_family != b_sockaddr->ss_family)
46		return 1;
47	if (a_sockaddr->ss_family == AF_INET) {
48		struct sockaddr_in *a4_sockaddr =
49			(struct sockaddr_in *)a_sockaddr;
50		struct sockaddr_in *b4_sockaddr =
51			(struct sockaddr_in *)b_sockaddr;
52		if (!memcmp(&a4_sockaddr->sin_addr,
53			&b4_sockaddr->sin_addr, sizeof(struct in_addr))
54			&& a4_sockaddr->sin_port == b4_sockaddr->sin_port)
55				return 0;
56
57	} else if (a_sockaddr->ss_family == AF_INET6) {
58		struct sockaddr_in6 *a6_sockaddr =
59			(struct sockaddr_in6 *)a_sockaddr;
60		struct sockaddr_in6 *b6_sockaddr =
61			(struct sockaddr_in6 *)b_sockaddr;
62		if (!memcmp(&a6_sockaddr->sin6_addr,
63			&b6_sockaddr->sin6_addr, sizeof(struct in6_addr))
64			&& a6_sockaddr->sin6_port == b6_sockaddr->sin6_port)
65				return 0;
66
67	} else {
68		pr_err("%s: Invalid sockaddr family\n", __func__);
69	}
70	return 1;
71}
72
73void iwpm_print_sockaddr(struct sockaddr_storage *sockaddr, char *msg)
74{
75	struct sockaddr_in6 *sockaddr_v6;
76	struct sockaddr_in *sockaddr_v4;
77
78	switch (sockaddr->ss_family) {
79	case AF_INET:
80		sockaddr_v4 = (struct sockaddr_in *)sockaddr;
81		pr_debug("%s IPV4 %pI4: %u(0x%04X)\n",
82			msg, &sockaddr_v4->sin_addr,
83			ntohs(sockaddr_v4->sin_port),
84			ntohs(sockaddr_v4->sin_port));
85		break;
86	case AF_INET6:
87		sockaddr_v6 = (struct sockaddr_in6 *)sockaddr;
88		pr_debug("%s IPV6 %pI6: %u(0x%04X)\n",
89			msg, &sockaddr_v6->sin6_addr,
90			ntohs(sockaddr_v6->sin6_port),
91			ntohs(sockaddr_v6->sin6_port));
92		break;
93	default:
94		break;
95	}
96}
97
98