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authorVenkat Yekkirala <vyekkirala@TrustedCS.com>2006-07-24 23:32:20 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 14:53:28 -0700
commitcb969f072b6d67770b559617f14e767f47e77ece (patch)
tree4112eb0182e8b3e28b42aebaa40ca25454fc6b76 /security
parentbeb8d13bed80f8388f1a9a107d07ddd342e627e8 (diff)
downloadlinux-linaro-stable-cb969f072b6d67770b559617f14e767f47e77ece.tar.gz
[MLSXFRM]: Default labeling of socket specific IPSec policies
This defaults the label of socket-specific IPSec policies to be the same as the socket they are set on. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security')
-rw-r--r--security/dummy.c3
-rw-r--r--security/selinux/include/xfrm.h3
-rw-r--r--security/selinux/xfrm.c33
3 files changed, 26 insertions, 13 deletions
diff --git a/security/dummy.c b/security/dummy.c
index c0ff6b9bfd7d..66cc06404930 100644
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -815,7 +815,8 @@ static inline void dummy_sk_getsecid(struct sock *sk, u32 *secid)
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_NETWORK_XFRM
-static int dummy_xfrm_policy_alloc_security(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
+static int dummy_xfrm_policy_alloc_security(struct xfrm_policy *xp,
+ struct xfrm_user_sec_ctx *sec_ctx, struct sock *sk)
{
return 0;
}
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 8e45c1d588a8..1822c73e5085 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -7,7 +7,8 @@
#ifndef _SELINUX_XFRM_H_
#define _SELINUX_XFRM_H_
-int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
+int selinux_xfrm_policy_alloc(struct xfrm_policy *xp,
+ struct xfrm_user_sec_ctx *sec_ctx, struct sock *sk);
int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
void selinux_xfrm_policy_free(struct xfrm_policy *xp);
int selinux_xfrm_policy_delete(struct xfrm_policy *xp);
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index c750ef7af66f..d3690f985135 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -208,10 +208,8 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
BUG_ON(uctx && pol);
- if (pol)
- goto from_policy;
-
- BUG_ON(!uctx);
+ if (!uctx)
+ goto not_from_user;
if (uctx->ctx_doi != XFRM_SC_ALG_SELINUX)
return -EINVAL;
@@ -251,11 +249,14 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
return rc;
-from_policy:
- BUG_ON(!pol);
- rc = security_sid_mls_copy(pol->ctx_sid, sid, &ctx_sid);
- if (rc)
- goto out;
+not_from_user:
+ if (pol) {
+ rc = security_sid_mls_copy(pol->ctx_sid, sid, &ctx_sid);
+ if (rc)
+ goto out;
+ }
+ else
+ ctx_sid = sid;
rc = security_sid_to_context(ctx_sid, &ctx_str, &str_len);
if (rc)
@@ -293,13 +294,23 @@ out2:
* LSM hook implementation that allocs and transfers uctx spec to
* xfrm_policy.
*/
-int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *uctx)
+int selinux_xfrm_policy_alloc(struct xfrm_policy *xp,
+ struct xfrm_user_sec_ctx *uctx, struct sock *sk)
{
int err;
+ u32 sid;
BUG_ON(!xp);
+ BUG_ON(uctx && sk);
+
+ if (sk) {
+ struct sk_security_struct *ssec = sk->sk_security;
+ sid = ssec->sid;
+ }
+ else
+ sid = SECSID_NULL;
- err = selinux_xfrm_sec_ctx_alloc(&xp->security, uctx, NULL, 0);
+ err = selinux_xfrm_sec_ctx_alloc(&xp->security, uctx, NULL, sid);
return err;
}