84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
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/*
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* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef USNIC_CMN_UTIL_H
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#define USNIC_CMN_UTIL_H
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static inline void
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usnic_mac_to_gid(const char *const mac, char *raw_gid)
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{
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raw_gid[0] = 0xfe;
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raw_gid[1] = 0x80;
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memset(&raw_gid[2], 0, 6);
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raw_gid[8] = mac[0]^2;
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raw_gid[9] = mac[1];
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raw_gid[10] = mac[2];
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raw_gid[11] = 0xff;
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raw_gid[12] = 0xfe;
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raw_gid[13] = mac[3];
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raw_gid[14] = mac[4];
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raw_gid[15] = mac[5];
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}
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static inline void
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usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid)
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{
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raw_gid[0] = 0xfe;
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raw_gid[1] = 0x80;
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memset(&raw_gid[2], 0, 2);
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memcpy(&raw_gid[4], &inaddr, 4);
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raw_gid[8] = mac[0]^2;
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raw_gid[9] = mac[1];
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raw_gid[10] = mac[2];
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raw_gid[11] = 0xff;
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raw_gid[12] = 0xfe;
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raw_gid[13] = mac[3];
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raw_gid[14] = mac[4];
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raw_gid[15] = mac[5];
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}
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static inline void
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usnic_write_gid_if_id_from_mac(char *mac, char *raw_gid)
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{
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raw_gid[8] = mac[0]^2;
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raw_gid[9] = mac[1];
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raw_gid[10] = mac[2];
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raw_gid[11] = 0xff;
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raw_gid[12] = 0xfe;
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raw_gid[13] = mac[3];
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raw_gid[14] = mac[4];
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raw_gid[15] = mac[5];
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}
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#endif /* USNIC_COMMON_UTIL_H */
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