[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>
diff --git a/include/linux/security.h b/include/linux/security.h
index f3909d1..8e3dc6c 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -827,8 +827,10 @@
* used by the XFRM system.
* @sec_ctx contains the security context information being provided by
* the user-level policy update program (e.g., setkey).
+ * @sk refers to the sock from which to derive the security context.
* Allocate a security structure to the xp->security field; the security
- * field is initialized to NULL when the xfrm_policy is allocated.
+ * field is initialized to NULL when the xfrm_policy is allocated. Only
+ * one of sec_ctx or sock can be specified.
* Return 0 if operation was successful (memory to allocate, legal context)
* @xfrm_policy_clone_security:
* @old contains an existing xfrm_policy in the SPD.
@@ -1359,7 +1361,8 @@
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_NETWORK_XFRM
- int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
+ int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp,
+ struct xfrm_user_sec_ctx *sec_ctx, struct sock *sk);
int (*xfrm_policy_clone_security) (struct xfrm_policy *old, struct xfrm_policy *new);
void (*xfrm_policy_free_security) (struct xfrm_policy *xp);
int (*xfrm_policy_delete_security) (struct xfrm_policy *xp);
@@ -3057,7 +3060,12 @@
#ifdef CONFIG_SECURITY_NETWORK_XFRM
static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
{
- return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
+ return security_ops->xfrm_policy_alloc_security(xp, sec_ctx, NULL);
+}
+
+static inline int security_xfrm_sock_policy_alloc(struct xfrm_policy *xp, struct sock *sk)
+{
+ return security_ops->xfrm_policy_alloc_security(xp, NULL, sk);
}
static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
@@ -3132,6 +3140,11 @@
return 0;
}
+static inline int security_xfrm_sock_policy_alloc(struct xfrm_policy *xp, struct sock *sk)
+{
+ return 0;
+}
+
static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
{
return 0;
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 3ecd9fa..00bf86e 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -362,7 +362,7 @@
char *id;
int (*notify)(struct xfrm_state *x, struct km_event *c);
int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp, int dir);
- struct xfrm_policy *(*compile_policy)(u16 family, int opt, u8 *data, int len, int *dir);
+ struct xfrm_policy *(*compile_policy)(struct sock *sk, int opt, u8 *data, int len, int *dir);
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
int (*notify_policy)(struct xfrm_policy *x, int dir, struct km_event *c);
};