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NetLabel: check for a CIPSOv4 option before we do call into the CIPSOv4 layer

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Right now the NetLabel code always jumps into the CIPSOv4 layer to determine if
a CIPSO IP option is present.  However, we can do this check directly in the
NetLabel code by making use of the CIPSO_V4_OPTEXIST() macro which should save
us a function call in the common case of not having a CIPSOv4 option present.

Signed-off-by: Paul Moore <[email protected]>
Signed-off-by: James Morris <[email protected]>
This commit is contained in:
Paul Moore 2006-11-17 17:38:47 -05:00 • committed by David S. Miller
commit 05e00cbf50
2 changed files with 2 additions and 6 deletions
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6
net/netlabel/netlabel_kapi.c
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@ -149,10 +149,8 @@ int netlbl_socket_getattr(const struct socket *sock,
int netlbl_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr)
{
int ret_val;
ret_val = cipso_v4_skbuff_getattr(skb, secattr);
if (ret_val == 0)
if (CIPSO_V4_OPTEXIST(skb) &&
cipso_v4_skbuff_getattr(skb, secattr) == 0)
return 0;
return netlbl_unlabel_getattr(secattr);