/* 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 { … }; /* To be used in drbd_genlmsghdr.flags */ enum { … }; enum drbd_state_info_bcast_reason { … }; /* 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 … #define GENL_MAGIC_FAMILY … #define GENL_MAGIC_FAMILY_HDRSZ … #define GENL_MAGIC_INCLUDE_FILE … #include <linux/genl_magic_struct.h> #endif
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