#ifndef _FS_CEPH_AUTH_X_H
  #define _FS_CEPH_AUTH_X_H
  
  #include <linux/rbtree.h>

  #include <linux/ceph/auth.h>

  #include "crypto.h"

  #include "auth_x_protocol.h"
  
  /*
   * Handle ticket for a single service.
   */
  struct ceph_x_ticket_handler {
  	struct rb_node node;

  	unsigned int service;

  
  	struct ceph_crypto_key session_key;
  	struct ceph_timespec validity;
  
  	u64 secret_id;
  	struct ceph_buffer *ticket_blob;
  
  	unsigned long renew_after, expires;
  };
  
  
  struct ceph_x_authorizer {

  	struct ceph_crypto_key session_key;

  	struct ceph_buffer *buf;

  	unsigned int service;

  	u64 nonce;

  	u64 secret_id;

  	char reply_buf[128];  /* big enough for encrypted blob */
  };
  
  struct ceph_x_info {
  	struct ceph_crypto_key secret;
  
  	bool starting;
  	u64 server_challenge;

  	unsigned int have_keys;

  	struct rb_root ticket_handlers;
  
  	struct ceph_x_authorizer auth_authorizer;
  };

  int ceph_x_init(struct ceph_auth_client *ac);

  
  #endif