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 * $FreeBSD$ 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 57238092Sglebius#define RT_CACHING_CONTEXT 0x1 /* XXX: not used anywhere */ 58238092Sglebius#define RT_NORTREF 0x2 /* doesn't hold reference on ro_rt */ 59225698Skmacy 601541Srgrimes/* 611541Srgrimes * These numbers are used by reliable protocols for determining 621541Srgrimes * retransmission behavior and are included in the routing structure. 631541Srgrimes */ 64122922Sandrestruct rt_metrics_lite { 65122922Sandre u_long rmx_mtu; /* MTU for this path */ 66122922Sandre u_long rmx_expire; /* lifetime for route, e.g. redirect */ 67122922Sandre u_long rmx_pksent; /* packets sent using this route */ 68191080Skmacy u_long rmx_weight; /* absolute weight */ 69122922Sandre}; 70122922Sandre 711541Srgrimesstruct rt_metrics { 721541Srgrimes u_long rmx_locks; /* Kernel must leave these values alone */ 731541Srgrimes u_long rmx_mtu; /* MTU for this path */ 741541Srgrimes u_long rmx_hopcount; /* max hops expected */ 751541Srgrimes u_long rmx_expire; /* lifetime for route, e.g. redirect */ 7613765Smpp u_long rmx_recvpipe; /* inbound delay-bandwidth product */ 7713765Smpp u_long rmx_sendpipe; /* outbound delay-bandwidth product */ 781541Srgrimes u_long rmx_ssthresh; /* outbound gateway buffer limit */ 791541Srgrimes u_long rmx_rtt; /* estimated round trip time */ 801541Srgrimes u_long rmx_rttvar; /* estimated rtt variance */ 811541Srgrimes u_long rmx_pksent; /* packets sent using this route */ 82191080Skmacy u_long rmx_weight; /* route weight */ 83191080Skmacy u_long rmx_filler[3]; /* will be used for T/TCP later */ 841541Srgrimes}; 851541Srgrimes 861541Srgrimes/* 871541Srgrimes * rmx_rtt and rmx_rttvar are stored as microseconds; 881541Srgrimes * RTTTOPRHZ(rtt) converts to a value suitable for use 891541Srgrimes * by a protocol slowtimo counter. 901541Srgrimes */ 911541Srgrimes#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */ 921541Srgrimes#define RTTTOPRHZ(r) ((r) / (RTM_RTTUNIT / PR_SLOWHZ)) 931541Srgrimes 94231852Sbz#define RT_DEFAULT_FIB 0 /* Explicitly mark fib=0 restricted cases */ 95178888Sjulianextern u_int rt_numfibs; /* number fo usable routing tables */ 961541Srgrimes/* 975833Sbde * XXX kernel function pointer `rt_output' is visible to applications. 985833Sbde */ 995833Sbdestruct mbuf; 1005833Sbde 1015833Sbde/* 1021541Srgrimes * We distinguish between routes to hosts and routes to networks, 1031541Srgrimes * preferring the former if available. For each route we infer 1041541Srgrimes * the interface to use from the gateway address supplied when 1051541Srgrimes * the route was entered. Routes that forward packets through 1061541Srgrimes * gateways are marked so that the output routines know to address the 1071541Srgrimes * gateway rather than the ultimate destination. 1081541Srgrimes */ 1091541Srgrimes#ifndef RNF_NORMAL 1101541Srgrimes#include <net/radix.h> 111178167Sqingli#ifdef RADIX_MPATH 112178167Sqingli#include <net/radix_mpath.h> 1131541Srgrimes#endif 114178167Sqingli#endif 1151541Srgrimesstruct rtentry { 1161541Srgrimes struct radix_node rt_nodes[2]; /* tree glue, and other values */ 117128454Sluigi /* 118128454Sluigi * XXX struct rtentry must begin with a struct radix_node (or two!) 119128454Sluigi * because the code does some casts of a 'struct radix_node *' 120128454Sluigi * to a 'struct rtentry *' 121128454Sluigi */ 122132780Skan#define rt_key(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_key))) 123132780Skan#define rt_mask(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_mask))) 1241541Srgrimes struct sockaddr *rt_gateway; /* value */ 125186119Sqingli int rt_flags; /* up/down?, host/net */ 126186119Sqingli int rt_refcnt; /* # held references */ 1271541Srgrimes struct ifnet *rt_ifp; /* the answer: interface to use */ 128122922Sandre struct ifaddr *rt_ifa; /* the answer: interface address to use */ 129127828Sluigi struct rt_metrics_lite rt_rmx; /* metrics used by rx'ing protocols */ 130178888Sjulian u_int rt_fibnum; /* which FIB */ 131120727Ssam#ifdef _KERNEL 132120727Ssam /* XXX ugly, user apps use this definition but don't have a mtx def */ 133120727Ssam struct mtx rt_mtx; /* mutex for routing entry */ 134120727Ssam#endif 1351541Srgrimes}; 1361541Srgrimes 1371541Srgrimes/* 1381541Srgrimes * Following structure necessary for 4.3 compatibility; 1391541Srgrimes * We should eventually move it to a compat file. 1401541Srgrimes */ 1411541Srgrimesstruct ortentry { 1421541Srgrimes u_long rt_hash; /* to speed lookups */ 1431541Srgrimes struct sockaddr rt_dst; /* key */ 1441541Srgrimes struct sockaddr rt_gateway; /* value */ 1451541Srgrimes short rt_flags; /* up/down?, host/net */ 1461541Srgrimes short rt_refcnt; /* # held references */ 1471541Srgrimes u_long rt_use; /* raw # packets forwarded */ 1481541Srgrimes struct ifnet *rt_ifp; /* the answer: interface to use */ 1491541Srgrimes}; 1501541Srgrimes 1514104Swollman#define rt_use rt_rmx.rmx_pksent 1524104Swollman 1531541Srgrimes#define RTF_UP 0x1 /* route usable */ 1541541Srgrimes#define RTF_GATEWAY 0x2 /* destination is a gateway */ 1551541Srgrimes#define RTF_HOST 0x4 /* host entry (net otherwise) */ 1561541Srgrimes#define RTF_REJECT 0x8 /* host or net unreachable */ 1571541Srgrimes#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */ 1581541Srgrimes#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */ 1591541Srgrimes#define RTF_DONE 0x40 /* message confirmed */ 16086764Sjlemon/* 0x80 unused, was RTF_DELCLONE */ 161186119Sqingli/* 0x100 unused, was RTF_CLONING */ 1621541Srgrimes#define RTF_XRESOLVE 0x200 /* external daemon resolves name */ 163187094Sqingli#define RTF_LLINFO 0x400 /* DEPRECATED - exists ONLY for backward 164187094Sqingli compatibility */ 165186500Sqingli#define RTF_LLDATA 0x400 /* used by apps to add/del L2 entries */ 1661541Srgrimes#define RTF_STATIC 0x800 /* manually added */ 1671541Srgrimes#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */ 1681541Srgrimes#define RTF_PROTO2 0x4000 /* protocol specific routing flag */ 1691541Srgrimes#define RTF_PROTO1 0x8000 /* protocol specific routing flag */ 1701541Srgrimes 171122921Sandre/* XXX: temporary to stay API/ABI compatible with userland */ 172122921Sandre#ifndef _KERNEL 173122921Sandre#define RTF_PRCLONING 0x10000 /* unused, for compatibility */ 174122921Sandre#endif 175122921Sandre 176186119Sqingli/* 0x20000 unused, was RTF_WASCLONED */ 1775099Swollman#define RTF_PROTO3 0x40000 /* protocol specific routing flag */ 17818839Swollman/* 0x80000 unused */ 179248070Smelifaro#define RTF_PINNED 0x100000 /* route is immutable */ 18015652Swollman#define RTF_LOCAL 0x200000 /* route represents a local address */ 18115652Swollman#define RTF_BROADCAST 0x400000 /* route represents a bcast address */ 18215652Swollman#define RTF_MULTICAST 0x800000 /* route represents a mcast address */ 183191080Skmacy /* 0x8000000 and up unassigned */ 184191080Skmacy#define RTF_STICKY 0x10000000 /* always route dst->src */ 1851541Srgrimes 186191080Skmacy#define RTF_RNH_LOCKED 0x40000000 /* radix node head is locked */ 187191080Skmacy 188252184Sqingli#define RTF_GWFLAG_COMPAT 0x80000000 /* a compatibility bit for interacting 189252184Sqingli with existing routing apps */ 190252184Sqingli 191156750Sandre/* Mask of RTF flags that are allowed to be modified by RTM_CHANGE. */ 192156750Sandre#define RTF_FMASK \ 193156750Sandre (RTF_PROTO1 | RTF_PROTO2 | RTF_PROTO3 | RTF_BLACKHOLE | \ 194191080Skmacy RTF_REJECT | RTF_STATIC | RTF_STICKY) 195156750Sandre 1961541Srgrimes/* 1971541Srgrimes * Routing statistics. 1981541Srgrimes */ 1991541Srgrimesstruct rtstat { 2001541Srgrimes short rts_badredirect; /* bogus redirect calls */ 2011541Srgrimes short rts_dynamic; /* routes created by redirects */ 2021541Srgrimes short rts_newgateway; /* routes modified by redirects */ 2031541Srgrimes short rts_unreach; /* lookups which failed */ 2041541Srgrimes short rts_wildcard; /* lookups satisfied by a wildcard */ 2051541Srgrimes}; 2061541Srgrimes/* 2071541Srgrimes * Structures for routing messages. 2081541Srgrimes */ 2091541Srgrimesstruct rt_msghdr { 2101541Srgrimes u_short rtm_msglen; /* to skip over non-understood messages */ 2111541Srgrimes u_char rtm_version; /* future binary compatibility */ 2121541Srgrimes u_char rtm_type; /* message type */ 2131541Srgrimes u_short rtm_index; /* index for associated ifp */ 2141541Srgrimes int rtm_flags; /* flags, incl. kern & message, e.g. DONE */ 2151541Srgrimes int rtm_addrs; /* bitmask identifying sockaddrs in msg */ 2161541Srgrimes pid_t rtm_pid; /* identify sender */ 2171541Srgrimes int rtm_seq; /* for sender to identify action */ 2181541Srgrimes int rtm_errno; /* why failed */ 219156750Sandre int rtm_fmask; /* bitmask used in RTM_CHANGE message */ 2201541Srgrimes u_long rtm_inits; /* which metrics we are initializing */ 2211541Srgrimes struct rt_metrics rtm_rmx; /* metrics themselves */ 2221541Srgrimes}; 2231541Srgrimes 224191124Skmacy#define RTM_VERSION 5 /* Up the ante and ignore older versions */ 2251541Srgrimes 22651252Sru/* 22751252Sru * Message types. 22851252Sru */ 2291541Srgrimes#define RTM_ADD 0x1 /* Add Route */ 2301541Srgrimes#define RTM_DELETE 0x2 /* Delete Route */ 2311541Srgrimes#define RTM_CHANGE 0x3 /* Change Metrics or flags */ 2321541Srgrimes#define RTM_GET 0x4 /* Report Metrics */ 2331541Srgrimes#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */ 2341541Srgrimes#define RTM_REDIRECT 0x6 /* Told to use different route */ 2351541Srgrimes#define RTM_MISS 0x7 /* Lookup failed on this address */ 2361541Srgrimes#define RTM_LOCK 0x8 /* fix specified metrics */ 2371541Srgrimes#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */ 2381541Srgrimes#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */ 2391541Srgrimes#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */ 2401541Srgrimes#define RTM_NEWADDR 0xc /* address being added to iface */ 2411541Srgrimes#define RTM_DELADDR 0xd /* address being removed from iface */ 2421541Srgrimes#define RTM_IFINFO 0xe /* iface going up/down etc. */ 24321666Swollman#define RTM_NEWMADDR 0xf /* mcast group membership being added to if */ 24421666Swollman#define RTM_DELMADDR 0x10 /* mcast group membership being deleted */ 24589498Sru#define RTM_IFANNOUNCE 0x11 /* iface arrival/departure */ 246136155Ssam#define RTM_IEEE80211 0x12 /* IEEE80211 wireless event */ 2471541Srgrimes 24851252Sru/* 24951252Sru * Bitmask values for rtm_inits and rmx_locks. 25051252Sru */ 2511541Srgrimes#define RTV_MTU 0x1 /* init or lock _mtu */ 2521541Srgrimes#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */ 25351252Sru#define RTV_EXPIRE 0x4 /* init or lock _expire */ 2541541Srgrimes#define RTV_RPIPE 0x8 /* init or lock _recvpipe */ 2551541Srgrimes#define RTV_SPIPE 0x10 /* init or lock _sendpipe */ 2561541Srgrimes#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */ 2571541Srgrimes#define RTV_RTT 0x40 /* init or lock _rtt */ 2581541Srgrimes#define RTV_RTTVAR 0x80 /* init or lock _rttvar */ 259191080Skmacy#define RTV_WEIGHT 0x100 /* init or lock _weight */ 2601541Srgrimes 2611541Srgrimes/* 26251252Sru * Bitmask values for rtm_addrs. 2631541Srgrimes */ 2641541Srgrimes#define RTA_DST 0x1 /* destination sockaddr present */ 2651541Srgrimes#define RTA_GATEWAY 0x2 /* gateway sockaddr present */ 2661541Srgrimes#define RTA_NETMASK 0x4 /* netmask sockaddr present */ 2671541Srgrimes#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */ 2681541Srgrimes#define RTA_IFP 0x10 /* interface name sockaddr present */ 2691541Srgrimes#define RTA_IFA 0x20 /* interface addr sockaddr present */ 2701541Srgrimes#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */ 2711541Srgrimes#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */ 2721541Srgrimes 2731541Srgrimes/* 2741541Srgrimes * Index offsets for sockaddr array for alternate internal encoding. 2751541Srgrimes */ 2761541Srgrimes#define RTAX_DST 0 /* destination sockaddr present */ 2771541Srgrimes#define RTAX_GATEWAY 1 /* gateway sockaddr present */ 2781541Srgrimes#define RTAX_NETMASK 2 /* netmask sockaddr present */ 2791541Srgrimes#define RTAX_GENMASK 3 /* cloning mask sockaddr present */ 2801541Srgrimes#define RTAX_IFP 4 /* interface name sockaddr present */ 2811541Srgrimes#define RTAX_IFA 5 /* interface addr sockaddr present */ 2821541Srgrimes#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */ 2831541Srgrimes#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */ 2841541Srgrimes#define RTAX_MAX 8 /* size of array to allocate */ 2851541Srgrimes 2861541Srgrimesstruct rt_addrinfo { 2871541Srgrimes int rti_addrs; 2881541Srgrimes struct sockaddr *rti_info[RTAX_MAX]; 28985074Sru int rti_flags; 29085074Sru struct ifaddr *rti_ifa; 29185074Sru struct ifnet *rti_ifp; 2921541Srgrimes}; 2931541Srgrimes 294128185Sluigi/* 295128185Sluigi * This macro returns the size of a struct sockaddr when passed 296128185Sluigi * through a routing socket. Basically we round up sa_len to 297128185Sluigi * a multiple of sizeof(long), with a minimum of sizeof(long). 298128185Sluigi * The check for a NULL pointer is just a convenience, probably never used. 299128185Sluigi * The case sa_len == 0 should only apply to empty structures. 300128185Sluigi */ 301128185Sluigi#define SA_SIZE(sa) \ 302128185Sluigi ( (!(sa) || ((struct sockaddr *)(sa))->sa_len == 0) ? \ 303128185Sluigi sizeof(long) : \ 304128185Sluigi 1 + ( (((struct sockaddr *)(sa))->sa_len - 1) | (sizeof(long) - 1) ) ) 305128185Sluigi 30655205Speter#ifdef _KERNEL 307117752Shsu 308205222Sqingli#define RT_LINK_IS_UP(ifp) (!((ifp)->if_capabilities & IFCAP_LINKSTATE) \ 309205024Sqingli || (ifp)->if_link_state == LINK_STATE_UP) 310204902Sqingli 311120727Ssam#define RT_LOCK_INIT(_rt) \ 312120727Ssam mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF | MTX_DUPOK) 313120727Ssam#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx) 314120727Ssam#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx) 315120727Ssam#define RT_LOCK_DESTROY(_rt) mtx_destroy(&(_rt)->rt_mtx) 316120727Ssam#define RT_LOCK_ASSERT(_rt) mtx_assert(&(_rt)->rt_mtx, MA_OWNED) 317117752Shsu 318122334Ssam#define RT_ADDREF(_rt) do { \ 319122334Ssam RT_LOCK_ASSERT(_rt); \ 320122334Ssam KASSERT((_rt)->rt_refcnt >= 0, \ 321186119Sqingli ("negative refcnt %d", (_rt)->rt_refcnt)); \ 322122334Ssam (_rt)->rt_refcnt++; \ 323150130Sandre} while (0) 324182801Sjulian 325122334Ssam#define RT_REMREF(_rt) do { \ 326122334Ssam RT_LOCK_ASSERT(_rt); \ 327122334Ssam KASSERT((_rt)->rt_refcnt > 0, \ 328186119Sqingli ("bogus refcnt %d", (_rt)->rt_refcnt)); \ 329122334Ssam (_rt)->rt_refcnt--; \ 330150130Sandre} while (0) 331122334Ssam 332122334Ssam#define RTFREE_LOCKED(_rt) do { \ 333183017Sjulian if ((_rt)->rt_refcnt <= 1) \ 334183017Sjulian rtfree(_rt); \ 335183017Sjulian else { \ 336183017Sjulian RT_REMREF(_rt); \ 337183017Sjulian RT_UNLOCK(_rt); \ 338183017Sjulian } \ 339183017Sjulian /* guard against invalid refs */ \ 340183017Sjulian _rt = 0; \ 341183017Sjulian} while (0) 342182801Sjulian 343122334Ssam#define RTFREE(_rt) do { \ 344183017Sjulian RT_LOCK(_rt); \ 345183017Sjulian RTFREE_LOCKED(_rt); \ 346183017Sjulian} while (0) 3471541Srgrimes 348238092Sglebius#define RO_RTFREE(_ro) do { \ 349238092Sglebius if ((_ro)->ro_rt) { \ 350238092Sglebius if ((_ro)->ro_flags & RT_NORTREF) { \ 351238092Sglebius (_ro)->ro_flags &= ~RT_NORTREF; \ 352238092Sglebius (_ro)->ro_rt = NULL; \ 353238092Sglebius } else { \ 354238092Sglebius RT_LOCK((_ro)->ro_rt); \ 355238092Sglebius RTFREE_LOCKED((_ro)->ro_rt); \ 356238092Sglebius } \ 357238092Sglebius } \ 358238092Sglebius} while (0) 359238092Sglebius 360193232Sbzstruct radix_node_head *rt_tables_get_rnh(int, int); 3611541Srgrimes 36221666Swollmanstruct ifmultiaddr; 36321666Swollman 364136155Ssamvoid rt_ieee80211msg(struct ifnet *, int, void *, size_t); 36592725Salfredvoid rt_ifannouncemsg(struct ifnet *, int); 36692725Salfredvoid rt_ifmsg(struct ifnet *); 36792725Salfredvoid rt_missmsg(int, struct rt_addrinfo *, int, int); 368225837Sbzvoid rt_missmsg_fib(int, struct rt_addrinfo *, int, int, int); 36992725Salfredvoid rt_newaddrmsg(int, struct ifaddr *, int, struct rtentry *); 370225837Sbzvoid rt_newaddrmsg_fib(int, struct ifaddr *, int, struct rtentry *, int); 37192725Salfredvoid rt_newmaddrmsg(int, struct ifmultiaddr *); 37292725Salfredint rt_setgate(struct rtentry *, struct sockaddr *, struct sockaddr *); 373201282Sqinglivoid rt_maskedcopy(struct sockaddr *, struct sockaddr *, struct sockaddr *); 374128621Sluigi 375128621Sluigi/* 376128621Sluigi * Note the following locking behavior: 377128621Sluigi * 378128621Sluigi * rtalloc_ign() and rtalloc() return ro->ro_rt unlocked 379128621Sluigi * 380128621Sluigi * rtalloc1() returns a locked rtentry 381128621Sluigi * 382128621Sluigi * rtfree() and RTFREE_LOCKED() require a locked rtentry 383128621Sluigi * 384128621Sluigi * RTFREE() uses an unlocked entry. 385128621Sluigi */ 386128621Sluigi 387178888Sjulianint rtexpunge(struct rtentry *); 388178888Sjulianvoid rtfree(struct rtentry *); 389183013Sjulianint rt_check(struct rtentry **, struct rtentry **, struct sockaddr *); 390178888Sjulian 391178888Sjulian/* XXX MRT COMPAT VERSIONS THAT SET UNIVERSE to 0 */ 392178888Sjulian/* Thes are used by old code not yet converted to use multiple FIBS */ 393178888Sjulianint rt_getifa(struct rt_addrinfo *); 394128621Sluigivoid rtalloc_ign(struct route *ro, u_long ignflags); 395128621Sluigivoid rtalloc(struct route *ro); /* XXX deprecated, use rtalloc_ign(ro, 0) */ 396120727Ssamstruct rtentry *rtalloc1(struct sockaddr *, int, u_long); 39792725Salfredint rtinit(struct ifaddr *, int, int); 39892725Salfredint rtioctl(u_long, caddr_t); 39992725Salfredvoid rtredirect(struct sockaddr *, struct sockaddr *, 400120727Ssam struct sockaddr *, int, struct sockaddr *); 40192725Salfredint rtrequest(int, struct sockaddr *, 40292725Salfred struct sockaddr *, struct sockaddr *, int, struct rtentry **); 403174559Skmacy 404231852Sbz#ifndef BURN_BRIDGES 405178888Sjulian/* defaults to "all" FIBs */ 406178888Sjulianint rtinit_fib(struct ifaddr *, int, int); 407231852Sbz#endif 408178888Sjulian 409178888Sjulian/* XXX MRT NEW VERSIONS THAT USE FIBs 410178888Sjulian * For now the protocol indepedent versions are the same as the AF_INET ones 411178888Sjulian * but this will change.. 412178888Sjulian */ 413178888Sjulianint rt_getifa_fib(struct rt_addrinfo *, u_int fibnum); 414178888Sjulianvoid rtalloc_ign_fib(struct route *ro, u_long ignflags, u_int fibnum); 415178888Sjulianvoid rtalloc_fib(struct route *ro, u_int fibnum); 416178888Sjulianstruct rtentry *rtalloc1_fib(struct sockaddr *, int, u_long, u_int); 417178888Sjulianint rtioctl_fib(u_long, caddr_t, u_int); 418178888Sjulianvoid rtredirect_fib(struct sockaddr *, struct sockaddr *, 419178888Sjulian struct sockaddr *, int, struct sockaddr *, u_int); 420178888Sjulianint rtrequest_fib(int, struct sockaddr *, 421178888Sjulian struct sockaddr *, struct sockaddr *, int, struct rtentry **, u_int); 422178888Sjulianint rtrequest1_fib(int, struct rt_addrinfo *, struct rtentry **, u_int); 423178888Sjulian 424174559Skmacy#include <sys/eventhandler.h> 425174703Skmacytypedef void (*rtevent_arp_update_fn)(void *, struct rtentry *, uint8_t *, struct sockaddr *); 426174703Skmacytypedef void (*rtevent_redirect_fn)(void *, struct rtentry *, struct rtentry *, struct sockaddr *); 427196995Snp/* route_arp_update_event is no longer generated; see arp_update_event */ 428174703SkmacyEVENTHANDLER_DECLARE(route_arp_update_event, rtevent_arp_update_fn); 429174703SkmacyEVENTHANDLER_DECLARE(route_redirect_event, rtevent_redirect_fn); 4301541Srgrimes#endif 4312168Spaul 4322168Spaul#endif 433