/* Convert first 8 bytes of adapter's GID to a MAC address,
* of the form: 00:FF:{gid}, in network byte order, ready
* for use in an Ethernet header */
__u64 gid_to_mac(char *data)
{
int i;
unsigned char val;
__u64 mac = 0;
for (i = 0; i < 8; i += 2)
{
val = HexStringToDecimalInt(data[i + 1]);
val |= (HexStringToDecimalInt(data[i]) << 4);
mac |= val << (24 - (4 * i));
}
mac &= 0x00FFFFFFFFFF;
mac |= 0x00FF00000000;
return(hton64(mac) >> 16);
}
BOOLEAN
ParseMAC (MACADDR dest, const char *src)
{
int c;
int mac_index = 0;
BOOLEAN high_digit = FALSE;
int delim_action = 1;
MYASSERT (src);
MYASSERT (dest);
CLEAR_MAC (dest);
while (c = *src++)
{
if (IsMacDelimiter (c))
{
mac_index += delim_action;
high_digit = FALSE;
delim_action = 1;
}
else if (IsHexDigit (c))
{
const int digit = HexStringToDecimalInt (c);
if (mac_index < sizeof (MACADDR))
{
if (!high_digit)
{
dest[mac_index] = (char)(digit);
high_digit = TRUE;
delim_action = 1;
}
else
{
dest[mac_index] = (char)(dest[mac_index] * 16 + digit);
++mac_index;
high_digit = FALSE;
delim_action = 0;
}
}
else
return FALSE;
}
else
return FALSE;
}
return (mac_index + delim_action) >= sizeof (MACADDR);
}
VOID
GenerateRandomMac(
__in MACADDR mac,
__in const unsigned char *adapter_name
)
{
unsigned const char *cp = adapter_name;
unsigned char c;
unsigned int i = 2;
unsigned int byte = 0;
int brace = 0;
int state = 0;
CLEAR_MAC (mac);
mac[0] = 0x00;
mac[1] = 0xFF;
while (c = *cp++)
{
if (i >= sizeof (MACADDR))
break;
if (c == '{')
brace = 1;
if (IsHexDigit (c) && brace)
{
const unsigned int digit = HexStringToDecimalInt (c);
if (state)
{
byte <<= 4;
byte |= digit;
mac[i++] = (unsigned char) byte;
state = 0;
}
else
{
byte = digit;
state = 1;
}
}
}
}
