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| author | Alexey Dobriyan | 2011-05-08 01:00:07 +0200 |
|---|---|---|
| committer | David S. Miller | 2011-05-09 21:10:49 +0200 |
| commit | 4940fc889e1e63667a15243028ddcd84d471cd8e (patch) | |
| tree | c52bb193d0ad4f13e0f617748ed1db297261f521 /include | |
| parent | netconsole: switch to kstrto*() functions (diff) | |
| download | kernel-qcow2-linux-4940fc889e1e63667a15243028ddcd84d471cd8e.tar.gz kernel-qcow2-linux-4940fc889e1e63667a15243028ddcd84d471cd8e.tar.xz kernel-qcow2-linux-4940fc889e1e63667a15243028ddcd84d471cd8e.zip | |
net: add mac_pton() for parsing MAC address
mac_pton() parses MAC address in form XX:XX:XX:XX:XX:XX and only in that form.
mac_pton() doesn't dirty result until it's sure string representation is valid.
mac_pton() doesn't care about characters _after_ last octet,
it's up to caller to deal with it.
mac_pton() diverges from 0/-E return value convention.
Target usage:
if (!mac_pton(str, whatever->mac))
return -EINVAL;
/* ->mac being u8 [ETH_ALEN] is filled at this point. */
/* optionally check str[3 * ETH_ALEN - 1] for termination */
Use mac_pton() in pktgen and netconsole for start.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/if_ether.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index be69043d2896..0f1325d98295 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -136,6 +136,7 @@ int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr); extern struct ctl_table ether_table[]; #endif +int mac_pton(const char *s, u8 *mac); extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); #endif |