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-rw-r--r--include/linux/xfrm.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 0fb077d68441..82fbb758e28f 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -27,6 +27,22 @@ struct xfrm_id
__u8 proto;
};
+struct xfrm_sec_ctx {
+ __u8 ctx_doi;
+ __u8 ctx_alg;
+ __u16 ctx_len;
+ __u32 ctx_sid;
+ char ctx_str[0];
+};
+
+/* Security Context Domains of Interpretation */
+#define XFRM_SC_DOI_RESERVED 0
+#define XFRM_SC_DOI_LSM 1
+
+/* Security Context Algorithms */
+#define XFRM_SC_ALG_RESERVED 0
+#define XFRM_SC_ALG_SELINUX 1
+
/* Selector, used as selector both on policy rules (SPD) and SAs. */
struct xfrm_selector
@@ -146,6 +162,18 @@ enum {
#define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE)
+/*
+ * Generic LSM security context for comunicating to user space
+ * NOTE: Same format as sadb_x_sec_ctx
+ */
+struct xfrm_user_sec_ctx {
+ __u16 len;
+ __u16 exttype;
+ __u8 ctx_alg; /* LSMs: e.g., selinux == 1 */
+ __u8 ctx_doi;
+ __u16 ctx_len;
+};
+
struct xfrm_user_tmpl {
struct xfrm_id id;
__u16 family;
@@ -176,6 +204,7 @@ enum xfrm_attr_type_t {
XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
XFRMA_SA,
XFRMA_POLICY,
+ XFRMA_SEC_CTX, /* struct xfrm_sec_ctx */
__XFRMA_MAX
#define XFRMA_MAX (__XFRMA_MAX - 1)

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