blob: a725eb85b34df5c44de3f3f49290f4c83922d259 [file] [log] [blame]
#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
* @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,
};
/* 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 2
#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