mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
188 lines
6.5 KiB
188 lines
6.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
#ifndef _FS_CEPH_AUTH_H |
|
#define _FS_CEPH_AUTH_H |
|
|
|
#include <linux/ceph/types.h> |
|
#include <linux/ceph/buffer.h> |
|
|
|
/* |
|
* Abstract interface for communicating with the authenticate module. |
|
* There is some handshake that takes place between us and the monitor |
|
* to acquire the necessary keys. These are used to generate an |
|
* 'authorizer' that we use when connecting to a service (mds, osd). |
|
*/ |
|
|
|
struct ceph_auth_client; |
|
struct ceph_msg; |
|
|
|
struct ceph_authorizer { |
|
void (*destroy)(struct ceph_authorizer *); |
|
}; |
|
|
|
struct ceph_auth_handshake { |
|
struct ceph_authorizer *authorizer; |
|
void *authorizer_buf; |
|
size_t authorizer_buf_len; |
|
void *authorizer_reply_buf; |
|
size_t authorizer_reply_buf_len; |
|
int (*sign_message)(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg); |
|
int (*check_message_signature)(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg); |
|
}; |
|
|
|
struct ceph_auth_client_ops { |
|
/* |
|
* true if we are authenticated and can connect to |
|
* services. |
|
*/ |
|
int (*is_authenticated)(struct ceph_auth_client *ac); |
|
|
|
/* |
|
* true if we should (re)authenticate, e.g., when our tickets |
|
* are getting old and crusty. |
|
*/ |
|
int (*should_authenticate)(struct ceph_auth_client *ac); |
|
|
|
/* |
|
* build requests and process replies during monitor |
|
* handshake. if handle_reply returns -EAGAIN, we build |
|
* another request. |
|
*/ |
|
int (*build_request)(struct ceph_auth_client *ac, void *buf, void *end); |
|
int (*handle_reply)(struct ceph_auth_client *ac, int result, |
|
void *buf, void *end, u8 *session_key, |
|
int *session_key_len, u8 *con_secret, |
|
int *con_secret_len); |
|
|
|
/* |
|
* Create authorizer for connecting to a service, and verify |
|
* the response to authenticate the service. |
|
*/ |
|
int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type, |
|
struct ceph_auth_handshake *auth); |
|
/* ensure that an existing authorizer is up to date */ |
|
int (*update_authorizer)(struct ceph_auth_client *ac, int peer_type, |
|
struct ceph_auth_handshake *auth); |
|
int (*add_authorizer_challenge)(struct ceph_auth_client *ac, |
|
struct ceph_authorizer *a, |
|
void *challenge_buf, |
|
int challenge_buf_len); |
|
int (*verify_authorizer_reply)(struct ceph_auth_client *ac, |
|
struct ceph_authorizer *a, |
|
void *reply, int reply_len, |
|
u8 *session_key, int *session_key_len, |
|
u8 *con_secret, int *con_secret_len); |
|
void (*invalidate_authorizer)(struct ceph_auth_client *ac, |
|
int peer_type); |
|
|
|
/* reset when we (re)connect to a monitor */ |
|
void (*reset)(struct ceph_auth_client *ac); |
|
|
|
void (*destroy)(struct ceph_auth_client *ac); |
|
|
|
int (*sign_message)(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg); |
|
int (*check_message_signature)(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg); |
|
}; |
|
|
|
struct ceph_auth_client { |
|
u32 protocol; /* CEPH_AUTH_* */ |
|
void *private; /* for use by protocol implementation */ |
|
const struct ceph_auth_client_ops *ops; /* null iff protocol==0 */ |
|
|
|
bool negotiating; /* true if negotiating protocol */ |
|
const char *name; /* entity name */ |
|
u64 global_id; /* our unique id in system */ |
|
const struct ceph_crypto_key *key; /* our secret key */ |
|
unsigned want_keys; /* which services we want */ |
|
|
|
int preferred_mode; /* CEPH_CON_MODE_* */ |
|
int fallback_mode; /* ditto */ |
|
|
|
struct mutex mutex; |
|
}; |
|
|
|
struct ceph_auth_client *ceph_auth_init(const char *name, |
|
const struct ceph_crypto_key *key, |
|
const int *con_modes); |
|
extern void ceph_auth_destroy(struct ceph_auth_client *ac); |
|
|
|
extern void ceph_auth_reset(struct ceph_auth_client *ac); |
|
|
|
extern int ceph_auth_build_hello(struct ceph_auth_client *ac, |
|
void *buf, size_t len); |
|
extern int ceph_handle_auth_reply(struct ceph_auth_client *ac, |
|
void *buf, size_t len, |
|
void *reply_buf, size_t reply_len); |
|
int ceph_auth_entity_name_encode(const char *name, void **p, void *end); |
|
|
|
extern int ceph_build_auth(struct ceph_auth_client *ac, |
|
void *msg_buf, size_t msg_len); |
|
extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac); |
|
|
|
int __ceph_auth_get_authorizer(struct ceph_auth_client *ac, |
|
struct ceph_auth_handshake *auth, |
|
int peer_type, bool force_new, |
|
int *proto, int *pref_mode, int *fallb_mode); |
|
void ceph_auth_destroy_authorizer(struct ceph_authorizer *a); |
|
int ceph_auth_add_authorizer_challenge(struct ceph_auth_client *ac, |
|
struct ceph_authorizer *a, |
|
void *challenge_buf, |
|
int challenge_buf_len); |
|
int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac, |
|
struct ceph_authorizer *a, |
|
void *reply, int reply_len, |
|
u8 *session_key, int *session_key_len, |
|
u8 *con_secret, int *con_secret_len); |
|
extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, |
|
int peer_type); |
|
|
|
static inline int ceph_auth_sign_message(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg) |
|
{ |
|
if (auth->sign_message) |
|
return auth->sign_message(auth, msg); |
|
return 0; |
|
} |
|
|
|
static inline |
|
int ceph_auth_check_message_signature(struct ceph_auth_handshake *auth, |
|
struct ceph_msg *msg) |
|
{ |
|
if (auth->check_message_signature) |
|
return auth->check_message_signature(auth, msg); |
|
return 0; |
|
} |
|
|
|
int ceph_auth_get_request(struct ceph_auth_client *ac, void *buf, int buf_len); |
|
int ceph_auth_handle_reply_more(struct ceph_auth_client *ac, void *reply, |
|
int reply_len, void *buf, int buf_len); |
|
int ceph_auth_handle_reply_done(struct ceph_auth_client *ac, |
|
u64 global_id, void *reply, int reply_len, |
|
u8 *session_key, int *session_key_len, |
|
u8 *con_secret, int *con_secret_len); |
|
bool ceph_auth_handle_bad_method(struct ceph_auth_client *ac, |
|
int used_proto, int result, |
|
const int *allowed_protos, int proto_cnt, |
|
const int *allowed_modes, int mode_cnt); |
|
|
|
int ceph_auth_get_authorizer(struct ceph_auth_client *ac, |
|
struct ceph_auth_handshake *auth, |
|
int peer_type, void *buf, int *buf_len); |
|
int ceph_auth_handle_svc_reply_more(struct ceph_auth_client *ac, |
|
struct ceph_auth_handshake *auth, |
|
void *reply, int reply_len, |
|
void *buf, int *buf_len); |
|
int ceph_auth_handle_svc_reply_done(struct ceph_auth_client *ac, |
|
struct ceph_auth_handshake *auth, |
|
void *reply, int reply_len, |
|
u8 *session_key, int *session_key_len, |
|
u8 *con_secret, int *con_secret_len); |
|
bool ceph_auth_handle_bad_authorizer(struct ceph_auth_client *ac, |
|
int peer_type, int used_proto, int result, |
|
const int *allowed_protos, int proto_cnt, |
|
const int *allowed_modes, int mode_cnt); |
|
|
|
#endif
|
|
|