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sys/netlink/route/neigh.h
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| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2022 Alexander V. Chernikov <melifaro@FreeBSD.org> | |||||
| * | |||||
| * 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. | |||||
| */ | |||||
| /* | |||||
| * Neighbors-related (RTM_<NEW|DEL|GET>NEIGH) message header and attributes. | |||||
| */ | |||||
| #ifndef _NETLINK_ROUTE_NEIGH_H_ | |||||
| #define _NETLINK_ROUTE_NEIGH_H_ | |||||
| /* Base header for all of the relevant messages */ | |||||
| struct ndmsg { | |||||
| uint8_t ndm_family; | |||||
| uint8_t ndm_pad1; | |||||
| uint16_t ndm_pad2; | |||||
| int32_t ndm_ifindex; | |||||
| uint16_t ndm_state; | |||||
| uint8_t ndm_flags; | |||||
| uint8_t ndm_type; | |||||
| }; | |||||
| /* Attributes */ | |||||
| enum { | |||||
| NDA_UNSPEC, | |||||
| NDA_DST, /* binary: neigh l3 address */ | |||||
| NDA_LLADDR, /* binary: neigh link-level address */ | |||||
| NDA_CACHEINFO, /* binary, struct nda_cacheinfo */ | |||||
| NDA_PROBES, /* XXX */ | |||||
| NDA_VLAN, /* upper 802.1Q tag */ | |||||
| NDA_PORT, /* not supported */ | |||||
| NDA_VNI, /* not supported */ | |||||
| NDA_IFINDEX, /* interface index */ | |||||
| NDA_MASTER, /* not supported */ | |||||
| NDA_LINK_NETNSID, /* not supported */ | |||||
| NDA_SRC_VNI, /* not supported */ | |||||
| NDA_PROTOCOL, /* XXX */ | |||||
| NDA_NH_ID, /* not supported */ | |||||
| NDA_FDB_EXT_ATTRS, /* not supported */ | |||||
| NDA_FLAGS_EXT, /* u32: ndm_flags */ | |||||
| NDA_NDM_STATE_MASK, /* XXX */ | |||||
| NDA_NDM_FLAGS_MASK, /* XXX */ | |||||
| __NDA_MAX | |||||
| }; | |||||
| #define NDA_MAX (__NDA_MAX - 1) | |||||
| /* ndm_flags / NDA_FLAGS_EXT */ | |||||
| #define NTF_USE 0x0001 /* XXX */ | |||||
| #define NTF_SELF 0x0002 /* local station */ | |||||
| #define NTF_MASTER 0x0004 /* XXX */ | |||||
| #define NTF_PROXY 0x0008 /* proxy entry */ | |||||
| #define NTF_EXT_LEARNED 0x0010 /* not used */ | |||||
| #define NTF_OFFLOADED 0x0020 /* not used */ | |||||
| #define NTF_STICKY 0x0040 /* permament entry */ | |||||
| #define NTF_ROUTER 0x0080 /* dst indicated itself as a router */ | |||||
| /* start of NDA_FLAGS_EXT */ | |||||
| #define NTF_EXT_MANAGED 0x0100 /* not used */ | |||||
| /* ndm_state */ | |||||
| #define NUD_INCOMPLETE 0x01 /* No lladdr, address resolution in progress */ | |||||
| #define NUD_REACHABLE 0x02 /* reachable & recently resolved */ | |||||
| #define NUD_STALE 0x04 /* has lladdr but it's stale */ | |||||
| #define NUD_DELAY 0x08 /* has lladdr, is stale, probes delayed */ | |||||
| #define NUD_PROBE 0x10 /* has lladdr, is stale, probes sent */ | |||||
| #define NUD_FAILED 0x20 /* unused */ | |||||
| /* Dummy states */ | |||||
| #define NUD_NOARP 0x40 /* not used */ | |||||
| #define NUD_PERMANENT 0x80 /* not flushed */ | |||||
| #define NUD_NONE 0x00 | |||||
| /* NDA_CACHEINFO */ | |||||
| struct nda_cacheinfo { | |||||
| uint32_t ndm_confirmed; /* seconds since ARP/ND was received from neigh */ | |||||
| uint32_t ndm_used; /* seconds since last used (not provided) */ | |||||
| uint32_t ndm_updated; /* seconds since state was updated last */ | |||||
| uint32_t ndm_refcnt; /* number of references held */ | |||||
| }; | |||||
| #endif | |||||