74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
|
|
* Junior University
|
|
*
|
|
* We are making the OpenFlow specification and associated documentation
|
|
* (Software) available for public use and benefit with the expectation
|
|
* that others will use, modify and enhance the Software and contribute
|
|
* those enhancements back to the community. However, since we would
|
|
* like to make the Software available for broadest use, with as few
|
|
* restrictions as possible permission is hereby granted, free of
|
|
* charge, to any person obtaining a copy of this Software to deal in
|
|
* the Software under the copyrights without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* The name and trademarks of copyright holder(s) may NOT be used in
|
|
* advertising or publicity pertaining to the Software or any
|
|
* derivatives without specific, written prior permission.
|
|
*/
|
|
#ifndef MAC_H
|
|
#define MAC_H 1
|
|
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
#include <stdbool.h>
|
|
#include "packets.h"
|
|
|
|
static inline bool mac_is_multicast(const uint8_t mac[ETH_ADDR_LEN])
|
|
{
|
|
return mac[0] & 0x80;
|
|
}
|
|
|
|
static inline bool mac_is_private(const uint8_t mac[ETH_ADDR_LEN])
|
|
{
|
|
return mac[0] & 0x40;
|
|
}
|
|
|
|
static inline bool mac_is_broadcast(const uint8_t mac[ETH_ADDR_LEN])
|
|
{
|
|
return (mac[0] & mac[1] & mac[2] & mac[3] & mac[4] & mac[5]) == 0xff;
|
|
}
|
|
|
|
static inline bool mac_is_zero(const uint8_t mac[ETH_ADDR_LEN])
|
|
{
|
|
return (mac[0] | mac[1] | mac[2] | mac[3] | mac[4] | mac[5]) == 0;
|
|
}
|
|
|
|
static inline bool mac_equals(const uint8_t a[ETH_ADDR_LEN],
|
|
const uint8_t b[ETH_ADDR_LEN])
|
|
{
|
|
return !memcmp(a, b, ETH_ADDR_LEN);
|
|
}
|
|
|
|
#define MAC_FMT \
|
|
"%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8
|
|
#define MAC_ARGS(mac) \
|
|
(mac)[0], (mac)[1], (mac)[2], (mac)[3], (mac)[4], (mac)[5]
|
|
|
|
|
|
#endif /* mac.h */
|