1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2022 Alexander V. Chernikov <melifaro@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Interface address-related (RTM_<NEW|DEL|GET>ADDR) message header and attributes. 30 */ 31 32 #ifndef _NETLINK_ROUTE_IFADDRS_H_ 33 #define _NETLINK_ROUTE_IFADDRS_H_ 34 35 /* Base header for all of the relevant messages */ 36 struct ifaddrmsg { 37 uint8_t ifa_family; /* Address family */ 38 uint8_t ifa_prefixlen; /* Prefix length */ 39 uint8_t ifa_flags; /* Address-specific flags */ 40 uint8_t ifa_scope; /* Address scope */ 41 uint32_t ifa_index; /* Link ifindex */ 42 }; 43 44 #ifndef _KERNEL 45 #define _NL_IFA_HDRLEN ((int)sizeof(struct ifaddrmsg)) 46 #define IFA_RTA(_ifa) ((struct rtattr *)(NL_ITEM_DATA(_ifa, _NL_IFA_HDRLEN))) 47 #define IFA_PAYLOAD(_hdr) NLMSG_PAYLOAD(_hdr, _NL_IFA_HDRLEN) 48 #endif 49 50 /* Defined attributes */ 51 enum { 52 IFA_UNSPEC, 53 IFA_ADDRESS = 1, /* binary, prefix address (destination for p2p) */ 54 IFA_LOCAL = 2, /* binary, interface address */ 55 IFA_LABEL = 3, /* string, interface name */ 56 IFA_BROADCAST = 4, /* binary, broadcast ifa */ 57 IFA_ANYCAST = 5, /* not supported */ 58 IFA_CACHEINFO = 6, /* not supported */ 59 IFA_MULTICAST = 7, /* not supported */ 60 IFA_FLAGS = 8, /* not supported */ 61 IFA_RT_PRIORITY = 9, /* not supported */ 62 IFA_TARGET_NETNSID = 10, /* not supported */ 63 __IFA_MAX, 64 }; 65 #define IFA_MAX (__IFA_MAX - 1) 66 67 /* IFA_FLAGS attribute flags */ 68 #define IFA_F_SECONDARY 0x0001 69 #define IFA_F_TEMPORARY IFA_F_SECONDARY 70 #define IFA_F_NODAD 0x0002 71 #define IFA_F_OPTIMISTIC 0x0004 72 #define IFA_F_DADFAILED 0x0008 73 #define IFA_F_HOMEADDRESS 0x0010 74 #define IFA_F_DEPRECATED 0x0020 75 #define IFA_F_TENTATIVE 0x0040 76 #define IFA_F_PERMANENT 0x0080 77 #define IFA_F_MANAGETEMPADDR 0x0100 78 #define IFA_F_NOPREFIXROUTE 0x0200 79 #define IFA_F_MCAUTOJOIN 0x0400 80 #define IFA_F_STABLE_PRIVACY 0x0800 81 82 /* IFA_CACHEINFO value */ 83 struct ifa_cacheinfo { 84 uint32_t ifa_prefered; 85 uint32_t ifa_valid; 86 uint32_t cstamp; 87 uint32_t tstamp; 88 }; 89 90 #endif 91