/* SPDX-License-Identifier: GPL-2.0 */

  #ifndef DRBD_GENL_STRUCT_H
  #define DRBD_GENL_STRUCT_H
  
  /**
   * struct drbd_genlmsghdr - DRBD specific header used in NETLINK_GENERIC requests
   * @minor:
   *     For admin requests (user -> kernel): which minor device to operate on.
   *     For (unicast) replies or informational (broadcast) messages
   *     (kernel -> user): which minor device the information is about.
   *     If we do not operate on minors, but on connections or resources,
   *     the minor value shall be (~0), and the attribute DRBD_NLA_CFG_CONTEXT
   *     is used instead.
   * @flags: possible operation modifiers (relevant only for user->kernel):
   *     DRBD_GENL_F_SET_DEFAULTS
   * @volume:
   *     When creating a new minor (adding it to a resource), the resource needs
   *     to know which volume number within the resource this is supposed to be.
   *     The volume number corresponds to the same volume number on the remote side,
   *     whereas the minor number on the remote side may be different
   *     (union with flags).
   * @ret_code: kernel->userland unicast cfg reply return code (union with flags);
   */
  struct drbd_genlmsghdr {
  	__u32 minor;
  	union {
  	__u32 flags;
  	__s32 ret_code;
  	};
  };
  
  /* To be used in drbd_genlmsghdr.flags */
  enum {
  	DRBD_GENL_F_SET_DEFAULTS = 1,
  };
  
  enum drbd_state_info_bcast_reason {
  	SIB_GET_STATUS_REPLY = 1,
  	SIB_STATE_CHANGE = 2,
  	SIB_HELPER_PRE = 3,
  	SIB_HELPER_POST = 4,
  	SIB_SYNC_PROGRESS = 5,
  };
  
  /* hack around predefined gcc/cpp "linux=1",
   * we cannot possibly include <1/drbd_genl.h> */
  #undef linux
  
  #include <linux/drbd.h>
  #define GENL_MAGIC_VERSION	API_VERSION
  #define GENL_MAGIC_FAMILY	drbd
  #define GENL_MAGIC_FAMILY_HDRSZ	sizeof(struct drbd_genlmsghdr)
  #define GENL_MAGIC_INCLUDE_FILE <linux/drbd_genl.h>
  #include <linux/genl_magic_struct.h>
  
  #endif