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authorCasey Schaufler <casey@schaufler-ca.com>2011-09-26 14:43:39 -0700
committerCasey Schaufler <cschaufler@cschaufler-intel.(none)>2011-10-12 14:27:05 -0700
commit975d5e55c2e78b755bd0b92b71db1c241c5a2665 (patch)
tree7f39bc6c89720a5abdf617cd1e83c0904d04ec08 /security
parentce8a432197d9892689eb4896f690b9fe6b3de598 (diff)
downloadlinux-stericsson-975d5e55c2e78b755bd0b92b71db1c241c5a2665.tar.gz
Smack: Provide information for UDS getsockopt(SO_PEERCRED)
This patch is targeted for the smack-next tree. This patch takes advantage of the recent changes for performance and points the packet labels on UDS connect at the output label of the far side. This makes getsockopt(...SO_PEERCRED...) function properly. Without this change the getsockopt does not provide any information. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security')
-rw-r--r--security/smack/smack_lsm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 6a8226541327..dab8af17ef38 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2773,6 +2773,7 @@ static int smack_unix_stream_connect(struct sock *sock,
{
struct socket_smack *ssp = sock->sk_security;
struct socket_smack *osp = other->sk_security;
+ struct socket_smack *nsp = newsk->sk_security;
struct smk_audit_info ad;
int rc = 0;
@@ -2782,6 +2783,14 @@ static int smack_unix_stream_connect(struct sock *sock,
if (!capable(CAP_MAC_OVERRIDE))
rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad);
+ /*
+ * Cross reference the peer labels for SO_PEERSEC.
+ */
+ if (rc == 0) {
+ nsp->smk_packet = ssp->smk_out;
+ ssp->smk_packet = osp->smk_out;
+ }
+
return rc;
}