davinci: mityomapl138: make file local data static
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / fs / ceph / auth.h
blobd38a2fb4a13762fc6e37578f840b166ee85efd16
1 #ifndef _FS_CEPH_AUTH_H
2 #define _FS_CEPH_AUTH_H
4 #include "types.h"
5 #include "buffer.h"
7 /*
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 {
18 const char *name;
21 * true if we are authenticated and can connect to
22 * services.
24 int (*is_authenticated)(struct ceph_auth_client *ac);
27 * true if we should (re)authenticate, e.g., when our tickets
28 * are getting old and crusty.
30 int (*should_authenticate)(struct ceph_auth_client *ac);
33 * build requests and process replies during monitor
34 * handshake. if handle_reply returns -EAGAIN, we build
35 * another request.
37 int (*build_request)(struct ceph_auth_client *ac, void *buf, void *end);
38 int (*handle_reply)(struct ceph_auth_client *ac, int result,
39 void *buf, void *end);
42 * Create authorizer for connecting to a service, and verify
43 * the response to authenticate the service.
45 int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type,
46 struct ceph_authorizer **a,
47 void **buf, size_t *len,
48 void **reply_buf, size_t *reply_len);
49 int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
50 struct ceph_authorizer *a, size_t len);
51 void (*destroy_authorizer)(struct ceph_auth_client *ac,
52 struct ceph_authorizer *a);
53 void (*invalidate_authorizer)(struct ceph_auth_client *ac,
54 int peer_type);
56 /* reset when we (re)connect to a monitor */
57 void (*reset)(struct ceph_auth_client *ac);
59 void (*destroy)(struct ceph_auth_client *ac);
62 struct ceph_auth_client {
63 u32 protocol; /* CEPH_AUTH_* */
64 void *private; /* for use by protocol implementation */
65 const struct ceph_auth_client_ops *ops; /* null iff protocol==0 */
67 bool negotiating; /* true if negotiating protocol */
68 const char *name; /* entity name */
69 u64 global_id; /* our unique id in system */
70 const char *secret; /* our secret key */
71 unsigned want_keys; /* which services we want */
74 extern struct ceph_auth_client *ceph_auth_init(const char *name,
75 const char *secret);
76 extern void ceph_auth_destroy(struct ceph_auth_client *ac);
78 extern void ceph_auth_reset(struct ceph_auth_client *ac);
80 extern int ceph_auth_build_hello(struct ceph_auth_client *ac,
81 void *buf, size_t len);
82 extern int ceph_handle_auth_reply(struct ceph_auth_client *ac,
83 void *buf, size_t len,
84 void *reply_buf, size_t reply_len);
85 extern int ceph_entity_name_encode(const char *name, void **p, void *end);
87 extern int ceph_build_auth(struct ceph_auth_client *ac,
88 void *msg_buf, size_t msg_len);
90 extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac);
92 #endif