libceph: message signature support

Signed-off-by: Yan, Zheng <zyan@redhat.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index 5f3386844134..260d78b587c4 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -13,6 +13,7 @@
 
 struct ceph_auth_client;
 struct ceph_authorizer;
+struct ceph_msg;
 
 struct ceph_auth_handshake {
         struct ceph_authorizer *authorizer;
@@ -20,6 +21,10 @@ struct ceph_auth_handshake {
         size_t authorizer_buf_len;
         void *authorizer_reply_buf;
         size_t authorizer_reply_buf_len;
+        int (*sign_message)(struct ceph_auth_handshake *auth,
+                            struct ceph_msg *msg);
+        int (*check_message_signature)(struct ceph_auth_handshake *auth,
+                                       struct ceph_msg *msg);
 };
 
 struct ceph_auth_client_ops {
@@ -66,6 +71,11 @@ struct ceph_auth_client_ops {
         void (*reset)(struct ceph_auth_client *ac);
 
         void (*destroy)(struct ceph_auth_client *ac);
+
+        int (*sign_message)(struct ceph_auth_handshake *auth,
+                            struct ceph_msg *msg);
+        int (*check_message_signature)(struct ceph_auth_handshake *auth,
+                                       struct ceph_msg *msg);
 };
 
 struct ceph_auth_client {
@@ -113,4 +123,20 @@ extern int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
 extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac,
                                             int peer_type);
 
+static inline int ceph_auth_sign_message(struct ceph_auth_handshake *auth,
+                                         struct ceph_msg *msg)
+{
+        if (auth->sign_message)
+                return auth->sign_message(auth, msg);
+        return 0;
+}
+
+static inline
+int ceph_auth_check_message_signature(struct ceph_auth_handshake *auth,
+                                      struct ceph_msg *msg)
+{
+        if (auth->check_message_signature)
+                return auth->check_message_signature(auth, msg);
+        return 0;
+}
 #endif