diff options
| author | Andy Shevchenko <andy.shevchenko@gmail.com> | 2013-06-04 19:46:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-05 12:00:27 -0700 |
| commit | 4cd5773a2ae6facdde3f563087a4cc50f00d9530 (patch) | |
| tree | f473e0a20e69f056394d3b268bfb4256cedff4ed /lib/net_utils.c | |
| parent | 143e9c76c487957de89808cf2a3c828518ad131b (diff) | |
net: core: move mac_pton() to lib/net_utils.c
Since we have at least one user of this function outside of CONFIG_NET
scope, we have to provide this function independently. The proposed
solution is to move it under lib/net_utils.c with corresponding
configuration variable and select wherever it is needed.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/net_utils.c')
| -rw-r--r-- | lib/net_utils.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/net_utils.c b/lib/net_utils.c new file mode 100644 index 000000000000..2e3c52c8d050 --- /dev/null +++ b/lib/net_utils.c @@ -0,0 +1,26 @@ +#include <linux/string.h> +#include <linux/if_ether.h> +#include <linux/ctype.h> +#include <linux/kernel.h> + +int mac_pton(const char *s, u8 *mac) +{ + int i; + + /* XX:XX:XX:XX:XX:XX */ + if (strlen(s) < 3 * ETH_ALEN - 1) + return 0; + + /* 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 0; + if (i != ETH_ALEN - 1 && s[i * 3 + 2] != ':') + return 0; + } + for (i = 0; i < ETH_ALEN; i++) { + mac[i] = (hex_to_bin(s[i * 3]) << 4) | hex_to_bin(s[i * 3 + 1]); + } + return 1; +} +EXPORT_SYMBOL(mac_pton); |