ceph: factor out libceph from Ceph file system

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>

1 files changed, 0 insertions, 92 deletions

diff --git a/fs/ceph/auth.h b/fs/ceph/auth.h
deleted file mode 100644
index d38a2fb..0000000
--- a/fs/ceph/auth.h
+++ /dev/null
@@ -1,92 +0,0 @@
-#ifndef _FS_CEPH_AUTH_H
-#define _FS_CEPH_AUTH_H
-
-#include "types.h"
-#include "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_authorizer;
-
-struct ceph_auth_client_ops {
-	const char *name;
-
-	/*
-	 * 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);
-
-	/*
-	 * 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_authorizer **a,
-				 void **buf, size_t *len,
-				 void **reply_buf, size_t *reply_len);
-	int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
-				       struct ceph_authorizer *a, size_t len);
-	void (*destroy_authorizer)(struct ceph_auth_client *ac,
-				   struct ceph_authorizer *a);
-	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);
-};
-
-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 char *secret;     /* our secret key */
-	unsigned want_keys;     /* which services we want */
-};
-
-extern struct ceph_auth_client *ceph_auth_init(const char *name,
-					       const char *secret);
-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);
-extern int ceph_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);
-
-#endif