diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:48:30 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:48:39 +0200 |
| commit | 1102c660dd35725a11c7ca9365c237f2f42f6b30 (patch) | |
| tree | cd32d3053b30050182218e0d36b4aed7459c48de /net/core/utils.c | |
| parent | 6e9101aeec39961308176e0f59e73ac5d37d243a (diff) | |
| parent | 4db70f73e56961b9bcdfd0c36c62847a18b7dbb5 (diff) | |
Merge branch 'linus' into perf/urgent
Merge reason: Linus applied an overlapping commit:
5f2e8e2b0bf0: kernel/watchdog.c: Use proper ANSI C prototypes
So merge it in to make sure we can iterate the file without conflicts.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/core/utils.c')
| -rw-r--r-- | net/core/utils.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/core/utils.c b/net/core/utils.c index 5fea0ab21902..2012bc797f9c 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -296,3 +296,27 @@ void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb, csum_unfold(*sum))); } EXPORT_SYMBOL(inet_proto_csum_replace4); + +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 (!strchr("0123456789abcdefABCDEF", s[i * 3])) + return 0; + if (!strchr("0123456789abcdefABCDEF", 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); |