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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 | ||
14 | struct ceph_auth_client; | |
15 | struct ceph_authorizer; | |
16 | ||
17 | struct ceph_auth_client_ops { | |
18 | /* | |
19 | * true if we are authenticated and can connect to | |
20 | * services. | |
21 | */ | |
22 | int (*is_authenticated)(struct ceph_auth_client *ac); | |
23 | ||
24 | /* | |
25 | * build requests and process replies during monitor | |
26 | * handshake. if handle_reply returns -EAGAIN, we build | |
27 | * another request. | |
28 | */ | |
29 | int (*build_request)(struct ceph_auth_client *ac, void *buf, void *end); | |
30 | int (*handle_reply)(struct ceph_auth_client *ac, int result, | |
31 | void *buf, void *end); | |
32 | ||
33 | /* | |
34 | * Create authorizer for connecting to a service, and verify | |
35 | * the response to authenticate the service. | |
36 | */ | |
37 | int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type, | |
38 | struct ceph_authorizer **a, | |
39 | void **buf, size_t *len, | |
40 | void **reply_buf, size_t *reply_len); | |
41 | int (*verify_authorizer_reply)(struct ceph_auth_client *ac, | |
42 | struct ceph_authorizer *a, size_t len); | |
43 | void (*destroy_authorizer)(struct ceph_auth_client *ac, | |
44 | struct ceph_authorizer *a); | |
9bd2e6f8 SW |
45 | void (*invalidate_authorizer)(struct ceph_auth_client *ac, |
46 | int peer_type); | |
4e7a5dcd SW |
47 | |
48 | /* reset when we (re)connect to a monitor */ | |
49 | void (*reset)(struct ceph_auth_client *ac); | |
50 | ||
51 | void (*destroy)(struct ceph_auth_client *ac); | |
52 | }; | |
53 | ||
54 | struct ceph_auth_client { | |
55 | u32 protocol; /* CEPH_AUTH_* */ | |
56 | void *private; /* for use by protocol implementation */ | |
57 | const struct ceph_auth_client_ops *ops; /* null iff protocol==0 */ | |
58 | ||
59 | bool negotiating; /* true if negotiating protocol */ | |
60 | const char *name; /* entity name */ | |
61 | u64 global_id; /* our unique id in system */ | |
62 | const char *secret; /* our secret key */ | |
63 | unsigned want_keys; /* which services we want */ | |
64 | }; | |
65 | ||
66 | extern struct ceph_auth_client *ceph_auth_init(const char *name, | |
67 | const char *secret); | |
68 | extern void ceph_auth_destroy(struct ceph_auth_client *ac); | |
69 | ||
70 | extern void ceph_auth_reset(struct ceph_auth_client *ac); | |
71 | ||
72 | extern int ceph_auth_build_hello(struct ceph_auth_client *ac, | |
73 | void *buf, size_t len); | |
74 | extern int ceph_handle_auth_reply(struct ceph_auth_client *ac, | |
75 | void *buf, size_t len, | |
76 | void *reply_buf, size_t reply_len); | |
77 | extern int ceph_entity_name_encode(const char *name, void **p, void *end); | |
78 | ||
9bd2e6f8 SW |
79 | extern int ceph_build_auth(struct ceph_auth_client *ac, |
80 | void *msg_buf, size_t msg_len); | |
81 | ||
82 | extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac); | |
83 | ||
4e7a5dcd | 84 | #endif |