| #include <linux/string.h> | |
| #include <linux/if_ether.h> | |
| #include <linux/ctype.h> | |
| #include <linux/kernel.h> | |
| bool mac_pton(const char *s, u8 *mac) | |
| { | |
| int i; | |
| /* XX:XX:XX:XX:XX:XX */ | |
| if (strlen(s) < 3 * ETH_ALEN - 1) | |
| return false; | |
| /* Don't dirty result unless string is valid MAC. */ | |
| for (i = 0; i < ETH_ALEN; i++) { | |
| if (!isxdigit(s[i * 3]) || !isxdigit(s[i * 3 + 1])) | |
| return false; | |
| if (i != ETH_ALEN - 1 && s[i * 3 + 2] != ':') | |
| return false; | |
| } | |
| for (i = 0; i < ETH_ALEN; i++) { | |
| mac[i] = (hex_to_bin(s[i * 3]) << 4) | hex_to_bin(s[i * 3 + 1]); | |
| } | |
| return true; | |
| } | |
| EXPORT_SYMBOL(mac_pton); |