Commit | Line | Data |
---|---|---|
4e7a5dcd SW |
1 | #ifndef _FS_CEPH_AUTH_H |
2 | #define _FS_CEPH_AUTH_H | |
3 | ||
3d14c5d2 YS |
4 | #include <linux/ceph/types.h> |
5 | #include <linux/ceph/buffer.h> | |
4e7a5dcd SW |
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 | ||
14 | struct ceph_auth_client; | |
15 | struct ceph_authorizer; | |
16 | ||
17 | struct ceph_auth_client_ops { | |
559c1e00 SW |
18 | const char *name; |
19 | ||
4e7a5dcd SW |
20 | /* |
21 | * true if we are authenticated and can connect to | |
22 | * services. | |
23 | */ | |
24 | int (*is_authenticated)(struct ceph_auth_client *ac); | |
25 | ||
a41359fa SW |
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 | ||
4e7a5dcd SW |
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); | |
9bd2e6f8 SW |
53 | void (*invalidate_authorizer)(struct ceph_auth_client *ac, |
54 | int peer_type); | |
4e7a5dcd SW |
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 | ||
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 */ | |
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 | ||
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); | |
77 | ||
78 | extern void ceph_auth_reset(struct ceph_auth_client *ac); | |
79 | ||
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); | |
86 | ||
9bd2e6f8 SW |
87 | extern int ceph_build_auth(struct ceph_auth_client *ac, |
88 | void *msg_buf, size_t msg_len); | |
89 | ||
90 | extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac); | |
91 | ||
4e7a5dcd | 92 | #endif |