path: root/security/smack/smack_access.c
diff options
authorEtienne Basset <etienne.basset@numericable.fr>2009-03-27 17:11:01 -0400
committerJames Morris <jmorris@namei.org>2009-03-28 15:01:37 +1100
commit4303154e86597885bc3cbc178a48ccbc8213875f (patch)
tree11989bcc2ec5d9cd5a1b7952f169ec5cbd8abb8e /security/smack/smack_access.c
parent07feee8f812f7327a46186f7604df312c8c81962 (diff)
smack: Add a new '-CIPSO' option to the network address label configuration
This patch adds a new special option '-CIPSO' to the Smack subsystem. When used in the netlabel list, it means "use CIPSO networking". A use case is when your local network speaks CIPSO and you want also to connect to the unlabeled Internet. This patch also add some documentation describing that. The patch also corrects an oops when setting a '' SMACK64 xattr to a file. Signed-off-by: Etienne Basset <etienne.basset@numericable.fr> Signed-off-by: Paul Moore <paul.moore@hp.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/smack/smack_access.c')
1 files changed, 3 insertions, 0 deletions
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 58564195bb0..ac0a2707f6d 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -261,6 +261,9 @@ char *smk_import(const char *string, int len)
struct smack_known *skp;
+ /* labels cannot begin with a '-' */
+ if (string[0] == '-')
+ return NULL;
skp = smk_import_entry(string, len);
if (skp == NULL)
return NULL;