| Upinder Malhi | e3cf00d | 2013-09-10 03:38:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. |
| 3 | * |
| Jeff Squyres | 3805ead | 2015-09-30 13:34:00 -0700 | [diff] [blame] | 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. |
| Upinder Malhi | e3cf00d | 2013-09-10 03:38:16 +0000 | [diff] [blame] | 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 | |
| 53 | static inline void |
| Upinder Malhi | 4942c0b | 2014-01-15 17:02:20 -0800 | [diff] [blame] | 54 | usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid) |
| Upinder Malhi | c7845bc | 2014-01-09 14:48:17 -0800 | [diff] [blame] | 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 | |
| 70 | static inline void |
| Upinder Malhi | e3cf00d | 2013-09-10 03:38:16 +0000 | [diff] [blame] | 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 */ |