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sys/netlink/netlink_generic.h
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| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2022 Alexander V. Chernikov | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| /* | |||||
| * Generic netlink message header and attributes | |||||
| */ | |||||
| #ifndef _NETLINK_NETLINK_GENERIC_H_ | |||||
| #define _NETLINK_NETLINK_GENERIC_H_ | |||||
| /* Base header for all of the relevant messages */ | |||||
| struct genlmsghdr { | |||||
| uint8_t cmd; /* CTRL_CMD_ */ | |||||
| uint8_t version; /* ABI version for the cmd */ | |||||
| uint16_t reserved; /* reserved: set to 0 */ | |||||
| }; | |||||
| #define GENL_HDRLEN NL_ITEM_ALIGN(sizeof(struct genlmsghdr)) | |||||
| /* Dynamic family number range, inclusive */ | |||||
| #define GENL_MIN_ID NLMSG_MIN_TYPE | |||||
| #define GENL_MAX_ID 1023 | |||||
| /* Pre-defined family numbers */ | |||||
| #define GENL_ID_CTRL GENL_MIN_ID | |||||
| /* Available commands */ | |||||
| enum { | |||||
| CTRL_CMD_UNSPEC = 0, | |||||
| CTRL_CMD_NEWFAMILY = 1, | |||||
| CTRL_CMD_DELFAMILY = 2, | |||||
| CTRL_CMD_GETFAMILY = 3, /* lists all (or matching) genetlink families */ | |||||
| CTRL_CMD_NEWOPS = 4, | |||||
| CTRL_CMD_DELOPS = 5, | |||||
| CTRL_CMD_GETOPS = 6, | |||||
| CTRL_CMD_NEWMCAST_GRP = 7, | |||||
| CTRL_CMD_DELMCAST_GRP = 8, | |||||
| CTRL_CMD_GETMCAST_GRP = 9, | |||||
| CTRL_CMD_GETPOLICY = 10, | |||||
| __CTRL_CMD_MAX, | |||||
| }; | |||||
| #define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1) | |||||
| /* Generic attributes */ | |||||
| enum { | |||||
| CTRL_ATTR_UNSPEC, | |||||
| CTRL_ATTR_FAMILY_ID = 1, /* u16, dynamically-assigned ID */ | |||||
| CTRL_ATTR_FAMILY_NAME = 2, /* string, family name */ | |||||
| CTRL_ATTR_VERSION = 3, /* u32, command version */ | |||||
| CTRL_ATTR_HDRSIZE = 4, /* u32, family header size */ | |||||
| CTRL_ATTR_MAXATTR = 5, /* u32, maximum family attr # */ | |||||
| CTRL_ATTR_OPS = 6, /* nested, available operations */ | |||||
| CTRL_ATTR_MCAST_GROUPS = 7, | |||||
| CTRL_ATTR_POLICY = 8, | |||||
| CTRL_ATTR_OP_POLICY = 9, | |||||
| CTRL_ATTR_OP = 10, | |||||
| __CTRL_ATTR_MAX, | |||||
| }; | |||||
| #define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1) | |||||
| #define GENL_NAMSIZ 16 /* max family name length including \0 */ | |||||
| /* CTRL_ATTR_OPS attributes */ | |||||
| enum { | |||||
| CTRL_ATTR_OP_UNSPEC, | |||||
| CTRL_ATTR_OP_ID = 1, /* u32, operation # */ | |||||
| CTRL_ATTR_OP_FLAGS = 2, /* u32, flags-based op description */ | |||||
| __CTRL_ATTR_OP_MAX, | |||||
| }; | |||||
| #define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1) | |||||
| /* CTRL_ATTR_OP_FLAGS values */ | |||||
| #define GENL_ADMIN_PERM 0x0001 /* Requires elevated permissions */ | |||||
| #define GENL_CMD_CAP_DO 0x0002 /* Operation is a modification request */ | |||||
| #define GENL_CMD_CAP_DUMP 0x0004 /* Operation is a get/dump request */ | |||||
| #define GENL_CMD_CAP_HASPOL 0x0008 /* Operation has a validation policy */ | |||||
| #define GENL_UNS_ADMIN_PERM 0x0010 | |||||
| /* CTRL_ATTR_MCAST_GROUPS attributes */ | |||||
| enum { | |||||
| CTRL_ATTR_MCAST_GRP_UNSPEC, | |||||
| CTRL_ATTR_MCAST_GRP_NAME, /* string, group name */ | |||||
| CTRL_ATTR_MCAST_GRP_ID, /* u32, dynamically-assigned group id */ | |||||
| __CTRL_ATTR_MCAST_GRP_MAX, | |||||
| }; | |||||
| #define CTRL_ATTR_MCAST_GRP_MAX (CTRL_ATTR_MCAST_GRP_MAX - 1) | |||||
| #endif | |||||