1 #ifndef _FS_CEPH_AUTH_H
2 #define _FS_CEPH_AUTH_H
8 * Abstract interface for communicating with the authenticate module.
9 * There is some handshake that takes place between us and the monitor
10 * to acquire the necessary keys. These are used to generate an
11 * 'authorizer' that we use when connecting to a service (mds, osd).
14 struct ceph_auth_client;
15 struct ceph_authorizer;
17 struct ceph_auth_client_ops {
21 * true if we are authenticated and can connect to
24 int (*is_authenticated)(struct ceph_auth_client *ac);
27 * build requests and process replies during monitor
28 * handshake. if handle_reply returns -EAGAIN, we build
31 int (*build_request)(struct ceph_auth_client *ac, void *buf, void *end);
32 int (*handle_reply)(struct ceph_auth_client *ac, int result,
33 void *buf, void *end);
36 * Create authorizer for connecting to a service, and verify
37 * the response to authenticate the service.
39 int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type,
40 struct ceph_authorizer **a,
41 void **buf, size_t *len,
42 void **reply_buf, size_t *reply_len);
43 int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
44 struct ceph_authorizer *a, size_t len);
45 void (*destroy_authorizer)(struct ceph_auth_client *ac,
46 struct ceph_authorizer *a);
47 void (*invalidate_authorizer)(struct ceph_auth_client *ac,
50 /* reset when we (re)connect to a monitor */
51 void (*reset)(struct ceph_auth_client *ac);
53 void (*destroy)(struct ceph_auth_client *ac);
56 struct ceph_auth_client {
57 u32 protocol; /* CEPH_AUTH_* */
58 void *private; /* for use by protocol implementation */
59 const struct ceph_auth_client_ops *ops; /* null iff protocol==0 */
61 bool negotiating; /* true if negotiating protocol */
62 const char *name; /* entity name */
63 u64 global_id; /* our unique id in system */
64 const char *secret; /* our secret key */
65 unsigned want_keys; /* which services we want */
68 extern struct ceph_auth_client *ceph_auth_init(const char *name,
70 extern void ceph_auth_destroy(struct ceph_auth_client *ac);
72 extern void ceph_auth_reset(struct ceph_auth_client *ac);
74 extern int ceph_auth_build_hello(struct ceph_auth_client *ac,
75 void *buf, size_t len);
76 extern int ceph_handle_auth_reply(struct ceph_auth_client *ac,
77 void *buf, size_t len,
78 void *reply_buf, size_t reply_len);
79 extern int ceph_entity_name_encode(const char *name, void **p, void *end);
81 extern int ceph_build_auth(struct ceph_auth_client *ac,
82 void *msg_buf, size_t msg_len);
84 extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac);