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-rw-r--r--security/selinux/xfrm.c39
1 files changed, 35 insertions, 4 deletions
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index abe99d881376..0e24df41099f 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -132,10 +132,7 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_us
goto out;
/*
- * Does the subject have permission to set security or permission to
- * do the relabel?
- * Must be permitted to relabel from default socket type (process type)
- * to specified context
+ * Does the subject have permission to set security context?
*/
rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
SECCLASS_ASSOCIATION,
@@ -201,6 +198,23 @@ void selinux_xfrm_policy_free(struct xfrm_policy *xp)
}
/*
+ * LSM hook implementation that authorizes deletion of labeled policies.
+ */
+int selinux_xfrm_policy_delete(struct xfrm_policy *xp)
+{
+ struct task_security_struct *tsec = current->security;
+ struct xfrm_sec_ctx *ctx = xp->security;
+ int rc = 0;
+
+ if (ctx)
+ rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
+ SECCLASS_ASSOCIATION,
+ ASSOCIATION__SETCONTEXT, NULL);
+
+ return rc;
+}
+
+/*
* LSM hook implementation that allocs and transfers sec_ctx spec to
* xfrm_state.
*/
@@ -292,6 +306,23 @@ u32 selinux_socket_getpeer_dgram(struct sk_buff *skb)
return SECSID_NULL;
}
+ /*
+ * LSM hook implementation that authorizes deletion of labeled SAs.
+ */
+int selinux_xfrm_state_delete(struct xfrm_state *x)
+{
+ struct task_security_struct *tsec = current->security;
+ struct xfrm_sec_ctx *ctx = x->security;
+ int rc = 0;
+
+ if (ctx)
+ rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
+ SECCLASS_ASSOCIATION,
+ ASSOCIATION__SETCONTEXT, NULL);
+
+ return rc;
+}
+
/*
* LSM hook that controls access to unlabelled packets. If
* a xfrm_state is authorizable (defined by macro) then it was