mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-29 10:08:53 +00:00
65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
/*
|
|
* \brief Media access control (MAC) address
|
|
* \author Martin Stein
|
|
* \date 2016-06-22
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2016-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _NET__MAC_ADDRESS_H_
|
|
#define _NET__MAC_ADDRESS_H_
|
|
|
|
/* OS includes */
|
|
#include <util/string.h>
|
|
#include <net/netaddress.h>
|
|
|
|
namespace Net {
|
|
struct Mac_address;
|
|
|
|
static inline Genode::size_t ascii_to(char const *, Mac_address &);
|
|
}
|
|
|
|
|
|
struct Net::Mac_address : Net::Network_address<6, ':', true>
|
|
{
|
|
using Net::Network_address<6, ':', true>::Network_address;
|
|
bool multicast() const { return addr[0] & 1; }
|
|
};
|
|
|
|
|
|
Genode::size_t Net::ascii_to(char const *s, Net::Mac_address &mac)
|
|
{
|
|
using namespace Genode;
|
|
|
|
enum {
|
|
HEX = true,
|
|
MAC_CHAR_LEN = 17, /* 12 number and 6 colons */
|
|
MAC_SIZE = 6,
|
|
};
|
|
|
|
if (Genode::strlen(s) < MAC_CHAR_LEN)
|
|
throw -1;
|
|
|
|
char mac_str[6];
|
|
for (int i = 0; i < MAC_SIZE; i++) {
|
|
int hi = i * 3;
|
|
int lo = hi + 1;
|
|
|
|
if (!is_digit(s[hi], HEX) || !is_digit(s[lo], HEX))
|
|
throw -1;
|
|
|
|
mac_str[i] = (char)((digit(s[hi], HEX) << 4) | digit(s[lo], HEX));
|
|
}
|
|
|
|
Genode::memcpy(mac.addr, mac_str, MAC_SIZE);
|
|
|
|
return MAC_CHAR_LEN;
|
|
}
|
|
|
|
#endif /* _NET__MAC_ADDRESS_H_ */
|