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authorBen Hutchings <bhutchings@solarflare.com>2012-11-01 09:10:04 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-02 21:34:05 -0400
commit4197f24b5bd8be03e84d23920e90f6a1313f4b79 (patch)
tree47e398311668cb2f9d1b45b1f7dec205e31ffba1 /net/bridge/br_sysfs_br.c
parent3ba368c43565f31528b3aea585bb4119fded4eb1 (diff)
bridge: Use is_link_local() in store_group_addr()
Parse the string into an array of bytes rather than ints, so we can use is_link_local() rather than reimplementing it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
-rw-r--r--net/bridge/br_sysfs_br.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index e157b0dbcd82..82385fd2f187 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -298,23 +298,18 @@ static ssize_t store_group_addr(struct device *d,
const char *buf, size_t len)
{
struct net_bridge *br = to_bridge(d);
- unsigned int new_addr[6];
+ u8 new_addr[6];
int i;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- if (sscanf(buf, "%x:%x:%x:%x:%x:%x",
+ if (sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
&new_addr[0], &new_addr[1], &new_addr[2],
&new_addr[3], &new_addr[4], &new_addr[5]) != 6)
return -EINVAL;
- /* Must be 01:80:c2:00:00:0X */
- for (i = 0; i < 5; i++)
- if (new_addr[i] != br_reserved_address[i])
- return -EINVAL;
-
- if (new_addr[5] & ~0xf)
+ if (!is_link_local(new_addr))
return -EINVAL;
if (new_addr[5] == 1 || /* 802.3x Pause address */