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1 | /* |
2 | * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. | |
3 | * | |
3805eade JS |
4 | * This software is available to you under a choice of one of two |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
e3cf00d0 UM |
22 | * |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | * | |
32 | */ | |
33 | ||
34 | #ifndef USNIC_CMN_UTIL_H | |
35 | #define USNIC_CMN_UTIL_H | |
36 | ||
37 | static inline void | |
38 | usnic_mac_to_gid(const char *const mac, char *raw_gid) | |
39 | { | |
40 | raw_gid[0] = 0xfe; | |
41 | raw_gid[1] = 0x80; | |
42 | memset(&raw_gid[2], 0, 6); | |
43 | raw_gid[8] = mac[0]^2; | |
44 | raw_gid[9] = mac[1]; | |
45 | raw_gid[10] = mac[2]; | |
46 | raw_gid[11] = 0xff; | |
47 | raw_gid[12] = 0xfe; | |
48 | raw_gid[13] = mac[3]; | |
49 | raw_gid[14] = mac[4]; | |
50 | raw_gid[15] = mac[5]; | |
51 | } | |
52 | ||
c7845bca | 53 | static inline void |
4942c0b4 | 54 | usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid) |
c7845bca UM |
55 | { |
56 | raw_gid[0] = 0xfe; | |
57 | raw_gid[1] = 0x80; | |
58 | memset(&raw_gid[2], 0, 2); | |
59 | memcpy(&raw_gid[4], &inaddr, 4); | |
60 | raw_gid[8] = mac[0]^2; | |
61 | raw_gid[9] = mac[1]; | |
62 | raw_gid[10] = mac[2]; | |
63 | raw_gid[11] = 0xff; | |
64 | raw_gid[12] = 0xfe; | |
65 | raw_gid[13] = mac[3]; | |
66 | raw_gid[14] = mac[4]; | |
67 | raw_gid[15] = mac[5]; | |
68 | } | |
69 | ||
e3cf00d0 UM |
70 | static inline void |
71 | usnic_write_gid_if_id_from_mac(char *mac, char *raw_gid) | |
72 | { | |
73 | raw_gid[8] = mac[0]^2; | |
74 | raw_gid[9] = mac[1]; | |
75 | raw_gid[10] = mac[2]; | |
76 | raw_gid[11] = 0xff; | |
77 | raw_gid[12] = 0xfe; | |
78 | raw_gid[13] = mac[3]; | |
79 | raw_gid[14] = mac[4]; | |
80 | raw_gid[15] = mac[5]; | |
81 | } | |
82 | ||
83 | #endif /* USNIC_COMMON_UTIL_H */ |