route.h revision 225837
1139823Simp/*- 21541Srgrimes * Copyright (c) 1980, 1986, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 4. Neither the name of the University nor the names of its contributors 141541Srgrimes * may be used to endorse or promote products derived from this software 151541Srgrimes * without specific prior written permission. 161541Srgrimes * 171541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271541Srgrimes * SUCH DAMAGE. 281541Srgrimes * 2985052Sru * @(#)route.h 8.4 (Berkeley) 1/9/95 3050477Speter * $FreeBSD: head/sys/net/route.h 225837 2011-09-28 13:48:36Z bz $ 311541Srgrimes */ 321541Srgrimes 332168Spaul#ifndef _NET_ROUTE_H_ 342168Spaul#define _NET_ROUTE_H_ 352168Spaul 361541Srgrimes/* 371541Srgrimes * Kernel resident routing tables. 388876Srgrimes * 391541Srgrimes * The routing tables are initialized when interface addresses 401541Srgrimes * are set by making entries for all directly connected interfaces. 411541Srgrimes */ 421541Srgrimes 431541Srgrimes/* 44191148Skmacy * A route consists of a destination address, a reference 45191148Skmacy * to a routing entry, and a reference to an llentry. 46191148Skmacy * These are often held by protocols in their control 47191148Skmacy * blocks, e.g. inpcb. 481541Srgrimes */ 491541Srgrimesstruct route { 501541Srgrimes struct rtentry *ro_rt; 51191117Skmacy struct llentry *ro_lle; 52225698Skmacy struct in_ifaddr *ro_ia; 53225698Skmacy int ro_flags; 541541Srgrimes struct sockaddr ro_dst; 551541Srgrimes}; 561541Srgrimes 57225698Skmacy#define RT_CACHING_CONTEXT 0x1 58225698Skmacy 591541Srgrimes/* 601541Srgrimes * These numbers are used by reliable protocols for determining 611541Srgrimes * retransmission behavior and are included in the routing structure. 621541Srgrimes */ 63122922Sandrestruct rt_metrics_lite { 64122922Sandre u_long rmx_mtu; /* MTU for this path */ 65122922Sandre u_long rmx_expire; /* lifetime for route, e.g. redirect */ 66122922Sandre u_long rmx_pksent; /* packets sent using this route */ 67191080Skmacy u_long rmx_weight; /* absolute weight */ 68122922Sandre}; 69122922Sandre 701541Srgrimesstruct rt_metrics { 711541Srgrimes u_long rmx_locks; /* Kernel must leave these values alone */ 721541Srgrimes u_long rmx_mtu; /* MTU for this path */ 731541Srgrimes u_long rmx_hopcount; /* max hops expected */ 741541Srgrimes u_long rmx_expire; /* lifetime for route, e.g. redirect */ 7513765Smpp u_long rmx_recvpipe; /* inbound delay-bandwidth product */ 7613765Smpp u_long rmx_sendpipe; /* outbound delay-bandwidth product */ 771541Srgrimes u_long rmx_ssthresh; /* outbound gateway buffer limit */ 781541Srgrimes u_long rmx_rtt; /* estimated round trip time */ 791541Srgrimes u_long rmx_rttvar; /* estimated rtt variance */ 801541Srgrimes u_long rmx_pksent; /* packets sent using this route */ 81191080Skmacy u_long rmx_weight; /* route weight */ 82191080Skmacy u_long rmx_filler[3]; /* will be used for T/TCP later */ 831541Srgrimes}; 841541Srgrimes 851541Srgrimes/* 861541Srgrimes * rmx_rtt and rmx_rttvar are stored as microseconds; 871541Srgrimes * RTTTOPRHZ(rtt) converts to a value suitable for use 881541Srgrimes * by a protocol slowtimo counter. 891541Srgrimes */ 901541Srgrimes#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */ 911541Srgrimes#define RTTTOPRHZ(r) ((r) / (RTM_RTTUNIT / PR_SLOWHZ)) 921541Srgrimes 93183200Szec/* MRT compile-time constants */ 94183200Szec#ifdef _KERNEL 95183200Szec #ifndef ROUTETABLES 96183200Szec #define RT_NUMFIBS 1 97183200Szec #define RT_MAXFIBS 1 98183200Szec #else 99183200Szec /* while we use 4 bits in the mbuf flags, we are limited to 16 */ 100183200Szec #define RT_MAXFIBS 16 101183200Szec #if ROUTETABLES > RT_MAXFIBS 102183200Szec #define RT_NUMFIBS RT_MAXFIBS 103183200Szec #error "ROUTETABLES defined too big" 104183200Szec #else 105183200Szec #if ROUTETABLES == 0 106183200Szec #define RT_NUMFIBS 1 107183200Szec #else 108183200Szec #define RT_NUMFIBS ROUTETABLES 109183200Szec #endif 110183200Szec #endif 111183200Szec #endif 112183200Szec#endif 113183200Szec 114178888Sjulianextern u_int rt_numfibs; /* number fo usable routing tables */ 1151541Srgrimes/* 1165833Sbde * XXX kernel function pointer `rt_output' is visible to applications. 1175833Sbde */ 1185833Sbdestruct mbuf; 1195833Sbde 1205833Sbde/* 1211541Srgrimes * We distinguish between routes to hosts and routes to networks, 1221541Srgrimes * preferring the former if available. For each route we infer 1231541Srgrimes * the interface to use from the gateway address supplied when 1241541Srgrimes * the route was entered. Routes that forward packets through 1251541Srgrimes * gateways are marked so that the output routines know to address the 1261541Srgrimes * gateway rather than the ultimate destination. 1271541Srgrimes */ 1281541Srgrimes#ifndef RNF_NORMAL 1291541Srgrimes#include <net/radix.h> 130178167Sqingli#ifdef RADIX_MPATH 131178167Sqingli#include <net/radix_mpath.h> 1321541Srgrimes#endif 133178167Sqingli#endif 1341541Srgrimesstruct rtentry { 1351541Srgrimes struct radix_node rt_nodes[2]; /* tree glue, and other values */ 136128454Sluigi /* 137128454Sluigi * XXX struct rtentry must begin with a struct radix_node (or two!) 138128454Sluigi * because the code does some casts of a 'struct radix_node *' 139128454Sluigi * to a 'struct rtentry *' 140128454Sluigi */ 141132780Skan#define rt_key(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_key))) 142132780Skan#define rt_mask(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_mask))) 1431541Srgrimes struct sockaddr *rt_gateway; /* value */ 144186119Sqingli int rt_flags; /* up/down?, host/net */ 145186119Sqingli int rt_refcnt; /* # held references */ 1461541Srgrimes struct ifnet *rt_ifp; /* the answer: interface to use */ 147122922Sandre struct ifaddr *rt_ifa; /* the answer: interface address to use */ 148127828Sluigi struct rt_metrics_lite rt_rmx; /* metrics used by rx'ing protocols */ 149178888Sjulian u_int rt_fibnum; /* which FIB */ 150120727Ssam#ifdef _KERNEL 151120727Ssam /* XXX ugly, user apps use this definition but don't have a mtx def */ 152120727Ssam struct mtx rt_mtx; /* mutex for routing entry */ 153120727Ssam#endif 1541541Srgrimes}; 1551541Srgrimes 1561541Srgrimes/* 1571541Srgrimes * Following structure necessary for 4.3 compatibility; 1581541Srgrimes * We should eventually move it to a compat file. 1591541Srgrimes */ 1601541Srgrimesstruct ortentry { 1611541Srgrimes u_long rt_hash; /* to speed lookups */ 1621541Srgrimes struct sockaddr rt_dst; /* key */ 1631541Srgrimes struct sockaddr rt_gateway; /* value */ 1641541Srgrimes short rt_flags; /* up/down?, host/net */ 1651541Srgrimes short rt_refcnt; /* # held references */ 1661541Srgrimes u_long rt_use; /* raw # packets forwarded */ 1671541Srgrimes struct ifnet *rt_ifp; /* the answer: interface to use */ 1681541Srgrimes}; 1691541Srgrimes 1704104Swollman#define rt_use rt_rmx.rmx_pksent 1714104Swollman 1721541Srgrimes#define RTF_UP 0x1 /* route usable */ 1731541Srgrimes#define RTF_GATEWAY 0x2 /* destination is a gateway */ 1741541Srgrimes#define RTF_HOST 0x4 /* host entry (net otherwise) */ 1751541Srgrimes#define RTF_REJECT 0x8 /* host or net unreachable */ 1761541Srgrimes#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */ 1771541Srgrimes#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */ 1781541Srgrimes#define RTF_DONE 0x40 /* message confirmed */ 17986764Sjlemon/* 0x80 unused, was RTF_DELCLONE */ 180186119Sqingli/* 0x100 unused, was RTF_CLONING */ 1811541Srgrimes#define RTF_XRESOLVE 0x200 /* external daemon resolves name */ 182187094Sqingli#define RTF_LLINFO 0x400 /* DEPRECATED - exists ONLY for backward 183187094Sqingli compatibility */ 184186500Sqingli#define RTF_LLDATA 0x400 /* used by apps to add/del L2 entries */ 1851541Srgrimes#define RTF_STATIC 0x800 /* manually added */ 1861541Srgrimes#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */ 1871541Srgrimes#define RTF_PROTO2 0x4000 /* protocol specific routing flag */ 1881541Srgrimes#define RTF_PROTO1 0x8000 /* protocol specific routing flag */ 1891541Srgrimes 190122921Sandre/* XXX: temporary to stay API/ABI compatible with userland */ 191122921Sandre#ifndef _KERNEL 192122921Sandre#define RTF_PRCLONING 0x10000 /* unused, for compatibility */ 193122921Sandre#endif 194122921Sandre 195186119Sqingli/* 0x20000 unused, was RTF_WASCLONED */ 1965099Swollman#define RTF_PROTO3 0x40000 /* protocol specific routing flag */ 19718839Swollman/* 0x80000 unused */ 1986245Swollman#define RTF_PINNED 0x100000 /* future use */ 19915652Swollman#define RTF_LOCAL 0x200000 /* route represents a local address */ 20015652Swollman#define RTF_BROADCAST 0x400000 /* route represents a bcast address */ 20115652Swollman#define RTF_MULTICAST 0x800000 /* route represents a mcast address */ 202191080Skmacy /* 0x8000000 and up unassigned */ 203191080Skmacy#define RTF_STICKY 0x10000000 /* always route dst->src */ 2041541Srgrimes 205191080Skmacy#define RTF_RNH_LOCKED 0x40000000 /* radix node head is locked */ 206191080Skmacy 207156750Sandre/* Mask of RTF flags that are allowed to be modified by RTM_CHANGE. */ 208156750Sandre#define RTF_FMASK \ 209156750Sandre (RTF_PROTO1 | RTF_PROTO2 | RTF_PROTO3 | RTF_BLACKHOLE | \ 210191080Skmacy RTF_REJECT | RTF_STATIC | RTF_STICKY) 211156750Sandre 2121541Srgrimes/* 2131541Srgrimes * Routing statistics. 2141541Srgrimes */ 2151541Srgrimesstruct rtstat { 2161541Srgrimes short rts_badredirect; /* bogus redirect calls */ 2171541Srgrimes short rts_dynamic; /* routes created by redirects */ 2181541Srgrimes short rts_newgateway; /* routes modified by redirects */ 2191541Srgrimes short rts_unreach; /* lookups which failed */ 2201541Srgrimes short rts_wildcard; /* lookups satisfied by a wildcard */ 2211541Srgrimes}; 2221541Srgrimes/* 2231541Srgrimes * Structures for routing messages. 2241541Srgrimes */ 2251541Srgrimesstruct rt_msghdr { 2261541Srgrimes u_short rtm_msglen; /* to skip over non-understood messages */ 2271541Srgrimes u_char rtm_version; /* future binary compatibility */ 2281541Srgrimes u_char rtm_type; /* message type */ 2291541Srgrimes u_short rtm_index; /* index for associated ifp */ 2301541Srgrimes int rtm_flags; /* flags, incl. kern & message, e.g. DONE */ 2311541Srgrimes int rtm_addrs; /* bitmask identifying sockaddrs in msg */ 2321541Srgrimes pid_t rtm_pid; /* identify sender */ 2331541Srgrimes int rtm_seq; /* for sender to identify action */ 2341541Srgrimes int rtm_errno; /* why failed */ 235156750Sandre int rtm_fmask; /* bitmask used in RTM_CHANGE message */ 2361541Srgrimes u_long rtm_inits; /* which metrics we are initializing */ 2371541Srgrimes struct rt_metrics rtm_rmx; /* metrics themselves */ 2381541Srgrimes}; 2391541Srgrimes 240191124Skmacy#define RTM_VERSION 5 /* Up the ante and ignore older versions */ 2411541Srgrimes 24251252Sru/* 24351252Sru * Message types. 24451252Sru */ 2451541Srgrimes#define RTM_ADD 0x1 /* Add Route */ 2461541Srgrimes#define RTM_DELETE 0x2 /* Delete Route */ 2471541Srgrimes#define RTM_CHANGE 0x3 /* Change Metrics or flags */ 2481541Srgrimes#define RTM_GET 0x4 /* Report Metrics */ 2491541Srgrimes#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */ 2501541Srgrimes#define RTM_REDIRECT 0x6 /* Told to use different route */ 2511541Srgrimes#define RTM_MISS 0x7 /* Lookup failed on this address */ 2521541Srgrimes#define RTM_LOCK 0x8 /* fix specified metrics */ 2531541Srgrimes#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */ 2541541Srgrimes#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */ 2551541Srgrimes#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */ 2561541Srgrimes#define RTM_NEWADDR 0xc /* address being added to iface */ 2571541Srgrimes#define RTM_DELADDR 0xd /* address being removed from iface */ 2581541Srgrimes#define RTM_IFINFO 0xe /* iface going up/down etc. */ 25921666Swollman#define RTM_NEWMADDR 0xf /* mcast group membership being added to if */ 26021666Swollman#define RTM_DELMADDR 0x10 /* mcast group membership being deleted */ 26189498Sru#define RTM_IFANNOUNCE 0x11 /* iface arrival/departure */ 262136155Ssam#define RTM_IEEE80211 0x12 /* IEEE80211 wireless event */ 2631541Srgrimes 26451252Sru/* 26551252Sru * Bitmask values for rtm_inits and rmx_locks. 26651252Sru */ 2671541Srgrimes#define RTV_MTU 0x1 /* init or lock _mtu */ 2681541Srgrimes#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */ 26951252Sru#define RTV_EXPIRE 0x4 /* init or lock _expire */ 2701541Srgrimes#define RTV_RPIPE 0x8 /* init or lock _recvpipe */ 2711541Srgrimes#define RTV_SPIPE 0x10 /* init or lock _sendpipe */ 2721541Srgrimes#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */ 2731541Srgrimes#define RTV_RTT 0x40 /* init or lock _rtt */ 2741541Srgrimes#define RTV_RTTVAR 0x80 /* init or lock _rttvar */ 275191080Skmacy#define RTV_WEIGHT 0x100 /* init or lock _weight */ 2761541Srgrimes 2771541Srgrimes/* 27851252Sru * Bitmask values for rtm_addrs. 2791541Srgrimes */ 2801541Srgrimes#define RTA_DST 0x1 /* destination sockaddr present */ 2811541Srgrimes#define RTA_GATEWAY 0x2 /* gateway sockaddr present */ 2821541Srgrimes#define RTA_NETMASK 0x4 /* netmask sockaddr present */ 2831541Srgrimes#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */ 2841541Srgrimes#define RTA_IFP 0x10 /* interface name sockaddr present */ 2851541Srgrimes#define RTA_IFA 0x20 /* interface addr sockaddr present */ 2861541Srgrimes#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */ 2871541Srgrimes#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */ 2881541Srgrimes 2891541Srgrimes/* 2901541Srgrimes * Index offsets for sockaddr array for alternate internal encoding. 2911541Srgrimes */ 2921541Srgrimes#define RTAX_DST 0 /* destination sockaddr present */ 2931541Srgrimes#define RTAX_GATEWAY 1 /* gateway sockaddr present */ 2941541Srgrimes#define RTAX_NETMASK 2 /* netmask sockaddr present */ 2951541Srgrimes#define RTAX_GENMASK 3 /* cloning mask sockaddr present */ 2961541Srgrimes#define RTAX_IFP 4 /* interface name sockaddr present */ 2971541Srgrimes#define RTAX_IFA 5 /* interface addr sockaddr present */ 2981541Srgrimes#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */ 2991541Srgrimes#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */ 3001541Srgrimes#define RTAX_MAX 8 /* size of array to allocate */ 3011541Srgrimes 3021541Srgrimesstruct rt_addrinfo { 3031541Srgrimes int rti_addrs; 3041541Srgrimes struct sockaddr *rti_info[RTAX_MAX]; 30585074Sru int rti_flags; 30685074Sru struct ifaddr *rti_ifa; 30785074Sru struct ifnet *rti_ifp; 3081541Srgrimes}; 3091541Srgrimes 310128185Sluigi/* 311128185Sluigi * This macro returns the size of a struct sockaddr when passed 312128185Sluigi * through a routing socket. Basically we round up sa_len to 313128185Sluigi * a multiple of sizeof(long), with a minimum of sizeof(long). 314128185Sluigi * The check for a NULL pointer is just a convenience, probably never used. 315128185Sluigi * The case sa_len == 0 should only apply to empty structures. 316128185Sluigi */ 317128185Sluigi#define SA_SIZE(sa) \ 318128185Sluigi ( (!(sa) || ((struct sockaddr *)(sa))->sa_len == 0) ? \ 319128185Sluigi sizeof(long) : \ 320128185Sluigi 1 + ( (((struct sockaddr *)(sa))->sa_len - 1) | (sizeof(long) - 1) ) ) 321128185Sluigi 32255205Speter#ifdef _KERNEL 323117752Shsu 324205222Sqingli#define RT_LINK_IS_UP(ifp) (!((ifp)->if_capabilities & IFCAP_LINKSTATE) \ 325205024Sqingli || (ifp)->if_link_state == LINK_STATE_UP) 326204902Sqingli 327120727Ssam#define RT_LOCK_INIT(_rt) \ 328120727Ssam mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF | MTX_DUPOK) 329120727Ssam#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx) 330120727Ssam#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx) 331120727Ssam#define RT_LOCK_DESTROY(_rt) mtx_destroy(&(_rt)->rt_mtx) 332120727Ssam#define RT_LOCK_ASSERT(_rt) mtx_assert(&(_rt)->rt_mtx, MA_OWNED) 333117752Shsu 334122334Ssam#define RT_ADDREF(_rt) do { \ 335122334Ssam RT_LOCK_ASSERT(_rt); \ 336122334Ssam KASSERT((_rt)->rt_refcnt >= 0, \ 337186119Sqingli ("negative refcnt %d", (_rt)->rt_refcnt)); \ 338122334Ssam (_rt)->rt_refcnt++; \ 339150130Sandre} while (0) 340182801Sjulian 341122334Ssam#define RT_REMREF(_rt) do { \ 342122334Ssam RT_LOCK_ASSERT(_rt); \ 343122334Ssam KASSERT((_rt)->rt_refcnt > 0, \ 344186119Sqingli ("bogus refcnt %d", (_rt)->rt_refcnt)); \ 345122334Ssam (_rt)->rt_refcnt--; \ 346150130Sandre} while (0) 347122334Ssam 348122334Ssam#define RTFREE_LOCKED(_rt) do { \ 349183017Sjulian if ((_rt)->rt_refcnt <= 1) \ 350183017Sjulian rtfree(_rt); \ 351183017Sjulian else { \ 352183017Sjulian RT_REMREF(_rt); \ 353183017Sjulian RT_UNLOCK(_rt); \ 354183017Sjulian } \ 355183017Sjulian /* guard against invalid refs */ \ 356183017Sjulian _rt = 0; \ 357183017Sjulian} while (0) 358182801Sjulian 359122334Ssam#define RTFREE(_rt) do { \ 360183017Sjulian RT_LOCK(_rt); \ 361183017Sjulian RTFREE_LOCKED(_rt); \ 362183017Sjulian} while (0) 3631541Srgrimes 364193232Sbzstruct radix_node_head *rt_tables_get_rnh(int, int); 3651541Srgrimes 36621666Swollmanstruct ifmultiaddr; 36721666Swollman 368136155Ssamvoid rt_ieee80211msg(struct ifnet *, int, void *, size_t); 36992725Salfredvoid rt_ifannouncemsg(struct ifnet *, int); 37092725Salfredvoid rt_ifmsg(struct ifnet *); 37192725Salfredvoid rt_missmsg(int, struct rt_addrinfo *, int, int); 372225837Sbzvoid rt_missmsg_fib(int, struct rt_addrinfo *, int, int, int); 37392725Salfredvoid rt_newaddrmsg(int, struct ifaddr *, int, struct rtentry *); 374225837Sbzvoid rt_newaddrmsg_fib(int, struct ifaddr *, int, struct rtentry *, int); 37592725Salfredvoid rt_newmaddrmsg(int, struct ifmultiaddr *); 37692725Salfredint rt_setgate(struct rtentry *, struct sockaddr *, struct sockaddr *); 377201282Sqinglivoid rt_maskedcopy(struct sockaddr *, struct sockaddr *, struct sockaddr *); 378128621Sluigi 379128621Sluigi/* 380128621Sluigi * Note the following locking behavior: 381128621Sluigi * 382128621Sluigi * rtalloc_ign() and rtalloc() return ro->ro_rt unlocked 383128621Sluigi * 384128621Sluigi * rtalloc1() returns a locked rtentry 385128621Sluigi * 386128621Sluigi * rtfree() and RTFREE_LOCKED() require a locked rtentry 387128621Sluigi * 388128621Sluigi * RTFREE() uses an unlocked entry. 389128621Sluigi */ 390128621Sluigi 391178888Sjulianint rtexpunge(struct rtentry *); 392178888Sjulianvoid rtfree(struct rtentry *); 393183013Sjulianint rt_check(struct rtentry **, struct rtentry **, struct sockaddr *); 394178888Sjulian 395178888Sjulian/* XXX MRT COMPAT VERSIONS THAT SET UNIVERSE to 0 */ 396178888Sjulian/* Thes are used by old code not yet converted to use multiple FIBS */ 397178888Sjulianint rt_getifa(struct rt_addrinfo *); 398128621Sluigivoid rtalloc_ign(struct route *ro, u_long ignflags); 399128621Sluigivoid rtalloc(struct route *ro); /* XXX deprecated, use rtalloc_ign(ro, 0) */ 400120727Ssamstruct rtentry *rtalloc1(struct sockaddr *, int, u_long); 40192725Salfredint rtinit(struct ifaddr *, int, int); 40292725Salfredint rtioctl(u_long, caddr_t); 40392725Salfredvoid rtredirect(struct sockaddr *, struct sockaddr *, 404120727Ssam struct sockaddr *, int, struct sockaddr *); 40592725Salfredint rtrequest(int, struct sockaddr *, 40692725Salfred struct sockaddr *, struct sockaddr *, int, struct rtentry **); 407174559Skmacy 408178888Sjulian/* defaults to "all" FIBs */ 409178888Sjulianint rtinit_fib(struct ifaddr *, int, int); 410178888Sjulian 411178888Sjulian/* XXX MRT NEW VERSIONS THAT USE FIBs 412178888Sjulian * For now the protocol indepedent versions are the same as the AF_INET ones 413178888Sjulian * but this will change.. 414178888Sjulian */ 415178888Sjulianint rt_getifa_fib(struct rt_addrinfo *, u_int fibnum); 416178888Sjulianvoid rtalloc_ign_fib(struct route *ro, u_long ignflags, u_int fibnum); 417178888Sjulianvoid rtalloc_fib(struct route *ro, u_int fibnum); 418178888Sjulianstruct rtentry *rtalloc1_fib(struct sockaddr *, int, u_long, u_int); 419178888Sjulianint rtioctl_fib(u_long, caddr_t, u_int); 420178888Sjulianvoid rtredirect_fib(struct sockaddr *, struct sockaddr *, 421178888Sjulian struct sockaddr *, int, struct sockaddr *, u_int); 422178888Sjulianint rtrequest_fib(int, struct sockaddr *, 423178888Sjulian struct sockaddr *, struct sockaddr *, int, struct rtentry **, u_int); 424178888Sjulianint rtrequest1_fib(int, struct rt_addrinfo *, struct rtentry **, u_int); 425178888Sjulian 426174559Skmacy#include <sys/eventhandler.h> 427174703Skmacytypedef void (*rtevent_arp_update_fn)(void *, struct rtentry *, uint8_t *, struct sockaddr *); 428174703Skmacytypedef void (*rtevent_redirect_fn)(void *, struct rtentry *, struct rtentry *, struct sockaddr *); 429196995Snp/* route_arp_update_event is no longer generated; see arp_update_event */ 430174703SkmacyEVENTHANDLER_DECLARE(route_arp_update_event, rtevent_arp_update_fn); 431174703SkmacyEVENTHANDLER_DECLARE(route_redirect_event, rtevent_redirect_fn); 4321541Srgrimes#endif 4332168Spaul 4342168Spaul#endif 435