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ceph: factor out libceph from Ceph file system

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This factors out protocol and low-level storage parts of ceph into a
separate libceph module living in net/ceph and include/linux/ceph.  This
is mostly a matter of moving files around.  However, a few key pieces
of the interface change as well:

 - ceph_client becomes ceph_fs_client and ceph_client, where the latter
   captures the mon and osd clients, and the fs_client gets the mds client
   and file system specific pieces.
 - Mount option parsing and debugfs setup is correspondingly broken into
   two pieces.
 - The mon client gets a generic handler callback for otherwise unknown
   messages (mds map, in this case).
 - The basic supported/required feature bits can be expanded (and are by
   ceph_fs_client).

No functional change, aside from some subtle error handling cases that got
cleaned up in the refactoring process.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Yehuda Sadeh 2010-04-06 15:14:15 -07:00 • committed by Sage Weil
parent ae1533b62b
commit 3d14c5d2b6
73 changed files with 2590 additions and 1862 deletions
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90
fs/ceph/auth_x_protocol.h
View file

@ -1,90 +0,0 @@
#ifndef __FS_CEPH_AUTH_X_PROTOCOL
#define __FS_CEPH_AUTH_X_PROTOCOL
#define CEPHX_GET_AUTH_SESSION_KEY 0x0100
#define CEPHX_GET_PRINCIPAL_SESSION_KEY 0x0200
#define CEPHX_GET_ROTATING_KEY 0x0400
/* common bits */
struct ceph_x_ticket_blob {
__u8 struct_v;
__le64 secret_id;
__le32 blob_len;
char blob[];
} __attribute__ ((packed));
/* common request/reply headers */
struct ceph_x_request_header {
__le16 op;
} __attribute__ ((packed));
struct ceph_x_reply_header {
__le16 op;
__le32 result;
} __attribute__ ((packed));
/* authenticate handshake */
/* initial hello (no reply header) */
struct ceph_x_server_challenge {
__u8 struct_v;
__le64 server_challenge;
} __attribute__ ((packed));
struct ceph_x_authenticate {
__u8 struct_v;
__le64 client_challenge;
__le64 key;
/* ticket blob */
} __attribute__ ((packed));
struct ceph_x_service_ticket_request {
__u8 struct_v;
__le32 keys;
} __attribute__ ((packed));
struct ceph_x_challenge_blob {
__le64 server_challenge;
__le64 client_challenge;
} __attribute__ ((packed));
/* authorize handshake */
/*
* The authorizer consists of two pieces:
* a - service id, ticket blob
* b - encrypted with session key
*/
struct ceph_x_authorize_a {
__u8 struct_v;
__le64 global_id;
__le32 service_id;
struct ceph_x_ticket_blob ticket_blob;
} __attribute__ ((packed));
struct ceph_x_authorize_b {
__u8 struct_v;
__le64 nonce;
} __attribute__ ((packed));
struct ceph_x_authorize_reply {
__u8 struct_v;
__le64 nonce_plus_one;
} __attribute__ ((packed));
/*
* encyption bundle
*/
#define CEPHX_ENC_MAGIC 0xff009cad8826aa55ull
struct ceph_x_encrypt_header {
__u8 struct_v;
__le64 magic;
} __attribute__ ((packed));
#endif