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-rw-r--r--fs/ceph/auth.h92
1 files changed, 0 insertions, 92 deletions
diff --git a/fs/ceph/auth.h b/fs/ceph/auth.h
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1#ifndef _FS_CEPH_AUTH_H
2#define _FS_CEPH_AUTH_H
3
4#include "types.h"
5#include "buffer.h"
6
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).
12 */
13
14struct ceph_auth_client;
15struct ceph_authorizer;
16
17struct ceph_auth_client_ops {
18 const char *name;
19
20 /*
21 * true if we are authenticated and can connect to
22 * services.
23 */
24 int (*is_authenticated)(struct ceph_auth_client *ac);
25
26 /*
27 * true if we should (re)authenticate, e.g., when our tickets
28 * are getting old and crusty.
29 */
30 int (*should_authenticate)(struct ceph_auth_client *ac);
31
32 /*
33 * build requests and process replies during monitor
34 * handshake. if handle_reply returns -EAGAIN, we build
35 * another request.
36 */
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);
40
41 /*
42 * Create authorizer for connecting to a service, and verify
43 * the response to authenticate the service.
44 */
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);
55
56 /* reset when we (re)connect to a monitor */
57 void (*reset)(struct ceph_auth_client *ac);
58
59 void (*destroy)(struct ceph_auth_client *ac);
60};
61
62struct 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 */
66
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 */
72};
73
74extern struct ceph_auth_client *ceph_auth_init(const char *name,
75 const char *secret);
76extern void ceph_auth_destroy(struct ceph_auth_client *ac);
77
78extern void ceph_auth_reset(struct ceph_auth_client *ac);
79
80extern int ceph_auth_build_hello(struct ceph_auth_client *ac,
81 void *buf, size_t len);
82extern int ceph_handle_auth_reply(struct ceph_auth_client *ac,
83 void *buf, size_t len,
84 void *reply_buf, size_t reply_len);
85extern int ceph_entity_name_encode(const char *name, void **p, void *end);
86
87extern int ceph_build_auth(struct ceph_auth_client *ac,
88 void *msg_buf, size_t msg_len);
89
90extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac);
91
92#endif