defs.h revision 190711
1/* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)defs.h 8.1 (Berkeley) 6/5/93 30 * 31 * $FreeBSD: head/sbin/routed/defs.h 190711 2009-04-05 14:01:39Z phk $ 32 */ 33 34#ifdef sgi 35#ident "$FreeBSD: head/sbin/routed/defs.h 190711 2009-04-05 14:01:39Z phk $" 36#endif 37 38/* Definitions for RIPv2 routing process. 39 * 40 * This code is based on the 4.4BSD `routed` daemon, with extensions to 41 * support: 42 * RIPv2, including variable length subnet masks. 43 * Router Discovery 44 * aggregate routes in the kernel tables. 45 * aggregate advertised routes. 46 * maintain spare routes for faster selection of another gateway 47 * when the current gateway dies. 48 * timers on routes with second granularity so that selection 49 * of a new route does not wait 30-60 seconds. 50 * tolerance of static routes. 51 * tell the kernel hop counts 52 * do not advertise if ipforwarding=0 53 * 54 * The vestigial support for other protocols has been removed. There 55 * is no likelihood that IETF RIPv1 or RIPv2 will ever be used with 56 * other protocols. The result is far smaller, faster, cleaner, and 57 * perhaps understandable. 58 * 59 * The accumulation of special flags and kludges added over the many 60 * years have been simplified and integrated. 61 */ 62 63#include <stdio.h> 64#include <netdb.h> 65#include <stdlib.h> 66#include <unistd.h> 67#include <errno.h> 68#include <string.h> 69#ifdef sgi 70#include <strings.h> 71#include <bstring.h> 72#endif 73#include <stdarg.h> 74#include <syslog.h> 75#include <time.h> 76#include <sys/cdefs.h> 77#include <sys/time.h> 78#include <sys/types.h> 79#include <sys/param.h> 80#include <sys/ioctl.h> 81#include <sys/sysctl.h> 82#include <sys/socket.h> 83#include <sys/queue.h> 84#ifdef sgi 85#define _USER_ROUTE_TREE 86#include <net/radix.h> 87#else 88#include "radix.h" 89#define UNUSED __attribute__((unused)) 90#define PATTRIB(f,l) __attribute__((format (printf,f,l))) 91#endif 92#include <net/if.h> 93#include <net/route.h> 94#include <net/if_dl.h> 95#include <netinet/in.h> 96#include <arpa/inet.h> 97#define RIPVERSION RIPv2 98#include <protocols/routed.h> 99 100#ifndef __RCSID 101#define __RCSID(_s) static const char rcsid[] UNUSED = _s 102#endif 103#ifndef __COPYRIGHT 104#define __COPYRIGHT(_s) static const char copyright[] UNUSED = _s 105#endif 106 107/* Type of an IP address. 108 * Some systems do not like to pass structures, so do not use in_addr. 109 * Some systems think a long has 64 bits, which would be a gross waste. 110 * So define it here so it can be changed for the target system. 111 * It should be defined somewhere netinet/in.h, but it is not. 112 */ 113#ifdef sgi 114#define naddr u_int32_t 115#elif defined (__NetBSD__) 116#define naddr u_int32_t 117#define _HAVE_SA_LEN 118#define _HAVE_SIN_LEN 119#else 120#define naddr u_long 121#define _HAVE_SA_LEN 122#define _HAVE_SIN_LEN 123#endif 124 125#define DAY (24*60*60) 126#define NEVER DAY /* a long time */ 127#define EPOCH NEVER /* bias time by this to avoid <0 */ 128 129/* Scan the kernel regularly to see if any interfaces have appeared or been 130 * turned off. These must be less than STALE_TIME. 131 */ 132#define CHECK_BAD_INTERVAL 5 /* when an interface is known bad */ 133#define CHECK_ACT_INTERVAL 30 /* when advertising */ 134#define CHECK_QUIET_INTERVAL 300 /* when not */ 135 136#define LIM_SEC(s,l) ((s).tv_sec = MIN((s).tv_sec, (l))) 137 138/* Metric used for fake default routes. It ought to be 15, but when 139 * processing advertised routes, previous versions of `routed` added 140 * to the received metric and discarded the route if the total was 16 141 * or larger. 142 */ 143#define FAKE_METRIC (HOPCNT_INFINITY-2) 144 145 146/* Router Discovery parameters */ 147#ifndef sgi 148#define INADDR_ALLROUTERS_GROUP 0xe0000002 /* 224.0.0.2 */ 149#endif 150#define MaxMaxAdvertiseInterval 1800 151#define MinMaxAdvertiseInterval 4 152#define DefMaxAdvertiseInterval 600 153#define DEF_PreferenceLevel 0 154#define MIN_PreferenceLevel 0x80000000 155 156#define MAX_INITIAL_ADVERT_INTERVAL 16 157#define MAX_INITIAL_ADVERTS 3 158#define MAX_RESPONSE_DELAY 2 159 160#define MAX_SOLICITATION_DELAY 1 161#define SOLICITATION_INTERVAL 3 162#define MAX_SOLICITATIONS 3 163 164 165/* Bloated packet size for systems that simply add authentication to 166 * full-sized packets 167 */ 168#define OVER_MAXPACKETSIZE (MAXPACKETSIZE+sizeof(struct netinfo)*2) 169/* typical packet buffers */ 170union pkt_buf { 171 char packet[OVER_MAXPACKETSIZE*2]; 172 struct rip rip; 173}; 174 175#define GNAME_LEN 64 /* assumed=64 in parms.c */ 176/* bigger than IFNAMSIZ, with room for "external()" or "remote()" */ 177#define IF_NAME_LEN (GNAME_LEN+15) 178 179/* No more routes than this, to protect ourself in case something goes 180 * whacko and starts broadcasting zillions of bogus routes. 181 */ 182#define MAX_ROUTES (128*1024) 183extern int total_routes; 184 185/* Main, daemon routing table structure 186 */ 187struct rt_entry { 188 struct radix_node rt_nodes[2]; /* radix tree glue */ 189 u_int rt_state; 190# define RS_IF 0x001 /* for network interface */ 191# define RS_NET_INT 0x002 /* authority route */ 192# define RS_NET_SYN 0x004 /* fake net route for subnet */ 193# define RS_NO_NET_SYN (RS_LOCAL | RS_LOCAL | RS_IF) 194# define RS_SUBNET 0x008 /* subnet route from any source */ 195# define RS_LOCAL 0x010 /* loopback for pt-to-pt */ 196# define RS_MHOME 0x020 /* from -m */ 197# define RS_STATIC 0x040 /* from the kernel */ 198# define RS_RDISC 0x080 /* from router discovery */ 199 struct sockaddr_in rt_dst_sock; 200 naddr rt_mask; 201 struct rt_spare { 202 struct interface *rts_ifp; 203 naddr rts_gate; /* forward packets here */ 204 naddr rts_router; /* on the authority of this router */ 205 char rts_metric; 206 u_short rts_tag; 207 time_t rts_time; /* timer to junk stale routes */ 208 u_int rts_de_ag; /* de-aggregation level */ 209#define NUM_SPARES 4 210 } rt_spares[NUM_SPARES]; 211 u_int rt_seqno; /* when last changed */ 212 char rt_poison_metric; /* to notice maximum recently */ 213 time_t rt_poison_time; /* advertised metric */ 214}; 215#define rt_dst rt_dst_sock.sin_addr.s_addr 216#define rt_ifp rt_spares[0].rts_ifp 217#define rt_gate rt_spares[0].rts_gate 218#define rt_router rt_spares[0].rts_router 219#define rt_metric rt_spares[0].rts_metric 220#define rt_tag rt_spares[0].rts_tag 221#define rt_time rt_spares[0].rts_time 222#define rt_de_ag rt_spares[0].rts_de_ag 223 224#define HOST_MASK 0xffffffff 225#define RT_ISHOST(rt) ((rt)->rt_mask == HOST_MASK) 226 227/* age all routes that 228 * are not from -g, -m, or static routes from the kernel 229 * not unbroken interface routes 230 * but not broken interfaces 231 * nor non-passive, remote interfaces that are not aliases 232 * (i.e. remote & metric=0) 233 */ 234#define AGE_RT(rt_state,ifp) (0 == ((rt_state) & (RS_MHOME | RS_STATIC \ 235 | RS_NET_SYN | RS_RDISC)) \ 236 && (!((rt_state) & RS_IF) \ 237 || (ifp) == 0 \ 238 || (((ifp)->int_state & IS_REMOTE) \ 239 && !((ifp)->int_state & IS_PASSIVE)))) 240 241/* true if A is better than B 242 * Better if 243 * - A is not a poisoned route 244 * - and A is not stale 245 * - and A has a shorter path 246 * - or is the router speaking for itself 247 * - or the current route is equal but stale 248 * - or it is a host route advertised by a system for itself 249 */ 250#define BETTER_LINK(rt,A,B) ((A)->rts_metric < HOPCNT_INFINITY \ 251 && now_stale <= (A)->rts_time \ 252 && ((A)->rts_metric < (B)->rts_metric \ 253 || ((A)->rts_gate == (A)->rts_router \ 254 && (B)->rts_gate != (B)->rts_router) \ 255 || ((A)->rts_metric == (B)->rts_metric \ 256 && now_stale > (B)->rts_time) \ 257 || (RT_ISHOST(rt) \ 258 && (rt)->rt_dst == (A)->rts_router \ 259 && (A)->rts_metric == (B)->rts_metric))) 260 261 262/* An "interface" is similar to a kernel ifnet structure, except it also 263 * handles "logical" or "IS_REMOTE" interfaces (remote gateways). 264 */ 265struct interface { 266 LIST_ENTRY(interface) int_list; 267 struct interface *int_ahash, **int_ahash_prev; 268 struct interface *int_bhash, **int_bhash_prev; 269 struct interface *int_rlink, **int_rlink_prev; 270 struct interface *int_nhash, **int_nhash_prev; 271 char int_name[IF_NAME_LEN+1]; 272 u_short int_index; 273 naddr int_addr; /* address on this host (net order) */ 274 naddr int_brdaddr; /* broadcast address (n) */ 275 naddr int_dstaddr; /* other end of pt-to-pt link (n) */ 276 naddr int_net; /* working network # (host order)*/ 277 naddr int_mask; /* working net mask (host order) */ 278 naddr int_ripv1_mask; /* for inferring a mask (n) */ 279 naddr int_std_addr; /* class A/B/C address (n) */ 280 naddr int_std_net; /* class A/B/C network (h) */ 281 naddr int_std_mask; /* class A/B/C netmask (h) */ 282 int int_rip_sock; /* for queries */ 283 int int_if_flags; /* some bits copied from kernel */ 284 u_int int_state; 285 time_t int_act_time; /* last thought healthy */ 286 time_t int_query_time; 287 u_short int_transitions; /* times gone up-down */ 288 char int_metric; 289 u_char int_d_metric; /* for faked default route */ 290 u_char int_adj_inmetric; /* adjust advertised metrics */ 291 u_char int_adj_outmetric; /* instead of interface metric */ 292 struct int_data { 293 u_int ipackets; /* previous network stats */ 294 u_int ierrors; 295 u_int opackets; 296 u_int oerrors; 297#ifdef sgi 298 u_int odrops; 299#endif 300 time_t ts; /* timestamp on network stats */ 301 } int_data; 302# define MAX_AUTH_KEYS 5 303 struct auth { /* authentication info */ 304 u_int16_t type; 305 u_char key[RIP_AUTH_PW_LEN]; 306 u_char keyid; 307 time_t start, end; 308 } int_auth[MAX_AUTH_KEYS]; 309 /* router discovery parameters */ 310 int int_rdisc_pref; /* signed preference to advertise */ 311 int int_rdisc_int; /* MaxAdvertiseInterval */ 312 int int_rdisc_cnt; 313 struct timeval int_rdisc_timer; 314}; 315 316/* bits in int_state */ 317#define IS_ALIAS 0x0000001 /* interface alias */ 318#define IS_SUBNET 0x0000002 /* interface on subnetted network */ 319#define IS_REMOTE 0x0000004 /* interface is not on this machine */ 320#define IS_PASSIVE 0x0000008 /* remote and does not do RIP */ 321#define IS_EXTERNAL 0x0000010 /* handled by EGP or something */ 322#define IS_CHECKED 0x0000020 /* still exists */ 323#define IS_ALL_HOSTS 0x0000040 /* in INADDR_ALLHOSTS_GROUP */ 324#define IS_ALL_ROUTERS 0x0000080 /* in INADDR_ALLROUTERS_GROUP */ 325#define IS_DISTRUST 0x0000100 /* ignore untrusted routers */ 326#define IS_REDIRECT_OK 0x0000200 /* accept ICMP redirects */ 327#define IS_BROKE 0x0000400 /* seems to be broken */ 328#define IS_SICK 0x0000800 /* seems to be broken */ 329#define IS_DUP 0x0001000 /* has a duplicate address */ 330#define IS_NEED_NET_SYN 0x0002000 /* need RS_NET_SYN route */ 331#define IS_NO_AG 0x0004000 /* do not aggregate subnets */ 332#define IS_NO_SUPER_AG 0x0008000 /* do not aggregate networks */ 333#define IS_NO_RIPV1_IN 0x0010000 /* no RIPv1 input at all */ 334#define IS_NO_RIPV2_IN 0x0020000 /* no RIPv2 input at all */ 335#define IS_NO_RIP_IN (IS_NO_RIPV1_IN | IS_NO_RIPV2_IN) 336#define IS_RIP_IN_OFF(s) (((s) & IS_NO_RIP_IN) == IS_NO_RIP_IN) 337#define IS_NO_RIPV1_OUT 0x0040000 /* no RIPv1 output at all */ 338#define IS_NO_RIPV2_OUT 0x0080000 /* no RIPv2 output at all */ 339#define IS_NO_RIP_OUT (IS_NO_RIPV1_OUT | IS_NO_RIPV2_OUT) 340#define IS_NO_RIP (IS_NO_RIP_OUT | IS_NO_RIP_IN) 341#define IS_RIP_OUT_OFF(s) (((s) & IS_NO_RIP_OUT) == IS_NO_RIP_OUT) 342#define IS_RIP_OFF(s) (((s) & IS_NO_RIP) == IS_NO_RIP) 343#define IS_NO_RIP_MCAST 0x0100000 /* broadcast RIPv2 */ 344#define IS_NO_ADV_IN 0x0200000 /* do not listen to advertisements */ 345#define IS_NO_SOL_OUT 0x0400000 /* send no solicitations */ 346#define IS_SOL_OUT 0x0800000 /* send solicitations */ 347#define GROUP_IS_SOL_OUT (IS_SOL_OUT | IS_NO_SOL_OUT) 348#define IS_NO_ADV_OUT 0x1000000 /* do not advertise rdisc */ 349#define IS_ADV_OUT 0x2000000 /* advertise rdisc */ 350#define GROUP_IS_ADV_OUT (IS_NO_ADV_OUT | IS_ADV_OUT) 351#define IS_BCAST_RDISC 0x4000000 /* broadcast instead of multicast */ 352#define IS_NO_RDISC (IS_NO_ADV_IN | IS_NO_SOL_OUT | IS_NO_ADV_OUT) 353#define IS_PM_RDISC 0x8000000 /* poor-man's router discovery */ 354 355#define iff_up(f) ((f) & IFF_UP) 356 357LIST_HEAD(ifhead, interface); 358 359/* Information for aggregating routes */ 360#define NUM_AG_SLOTS 32 361struct ag_info { 362 struct ag_info *ag_fine; /* slot with finer netmask */ 363 struct ag_info *ag_cors; /* more coarse netmask */ 364 naddr ag_dst_h; /* destination in host byte order */ 365 naddr ag_mask; 366 naddr ag_gate; 367 naddr ag_nhop; 368 char ag_metric; /* metric to be advertised */ 369 char ag_pref; /* aggregate based on this */ 370 u_int ag_seqno; 371 u_short ag_tag; 372 u_short ag_state; 373#define AGS_SUPPRESS 0x001 /* combine with coarser mask */ 374#define AGS_AGGREGATE 0x002 /* synthesize combined routes */ 375#define AGS_REDUN0 0x004 /* redundant, finer routes output */ 376#define AGS_REDUN1 0x008 377#define AG_IS_REDUN(state) (((state) & (AGS_REDUN0 | AGS_REDUN1)) \ 378 == (AGS_REDUN0 | AGS_REDUN1)) 379#define AGS_GATEWAY 0x010 /* tell kernel RTF_GATEWAY */ 380#define AGS_IF 0x020 /* for an interface */ 381#define AGS_RIPV2 0x040 /* send only as RIPv2 */ 382#define AGS_FINE_GATE 0x080 /* ignore differing ag_gate when this 383 * has the finer netmask */ 384#define AGS_CORS_GATE 0x100 /* ignore differing gate when this 385 * has the coarser netmasks */ 386#define AGS_SPLIT_HZ 0x200 /* suppress for split horizon */ 387 388 /* some bits are set if they are set on either route */ 389#define AGS_AGGREGATE_EITHER (AGS_RIPV2 | AGS_GATEWAY | \ 390 AGS_SUPPRESS | AGS_CORS_GATE) 391}; 392 393 394/* parameters for interfaces */ 395extern struct parm { 396 struct parm *parm_next; 397 char parm_name[IF_NAME_LEN+1]; 398 naddr parm_net; 399 naddr parm_mask; 400 401 u_char parm_d_metric; 402 u_char parm_adj_inmetric; 403 char parm_adj_outmetric; 404 u_int parm_int_state; 405 int parm_rdisc_pref; /* signed IRDP preference */ 406 int parm_rdisc_int; /* IRDP advertising interval */ 407 struct auth parm_auth[MAX_AUTH_KEYS]; 408} *parms; 409 410/* authority for internal networks */ 411extern struct intnet { 412 struct intnet *intnet_next; 413 naddr intnet_addr; /* network byte order */ 414 naddr intnet_mask; 415 char intnet_metric; 416} *intnets; 417 418/* defined RIPv1 netmasks */ 419extern struct r1net { 420 struct r1net *r1net_next; 421 naddr r1net_net; /* host order */ 422 naddr r1net_match; 423 naddr r1net_mask; 424} *r1nets; 425 426/* trusted routers */ 427extern struct tgate { 428 struct tgate *tgate_next; 429 naddr tgate_addr; 430#define MAX_TGATE_NETS 32 431 struct tgate_net { 432 naddr net; /* host order */ 433 naddr mask; 434 } tgate_nets[MAX_TGATE_NETS]; 435} *tgates; 436 437enum output_type {OUT_QUERY, OUT_UNICAST, OUT_BROADCAST, OUT_MULTICAST, 438 NO_OUT_MULTICAST, NO_OUT_RIPV2}; 439 440/* common output buffers */ 441extern struct ws_buf { 442 struct rip *buf; 443 struct netinfo *n; 444 struct netinfo *base; 445 struct netinfo *lim; 446 enum output_type type; 447} v12buf, v2buf; 448 449extern pid_t mypid; 450extern naddr myaddr; /* main address of this system */ 451 452extern int stopint; /* !=0 to stop */ 453 454extern int sock_max; 455extern int rip_sock; /* RIP socket */ 456extern struct interface *rip_sock_mcast; /* current multicast interface */ 457extern int rt_sock; /* routing socket */ 458extern int rt_sock_seqno; 459extern int rdisc_sock; /* router-discovery raw socket */ 460 461extern int seqno; /* sequence number for messages */ 462extern int supplier; /* process should supply updates */ 463extern int supplier_set; /* -s or -q requested */ 464extern int lookforinterfaces; /* 1=probe for new up interfaces */ 465extern int ridhosts; /* 1=reduce host routes */ 466extern int mhome; /* 1=want multi-homed host route */ 467extern int advertise_mhome; /* 1=must continue advertising it */ 468extern int auth_ok; /* 1=ignore auth if we do not care */ 469 470extern struct timeval clk; /* system clock's idea of time */ 471extern struct timeval epoch; /* system clock when started */ 472extern struct timeval now; /* current idea of time */ 473extern time_t now_stale; 474extern time_t now_expire; 475extern time_t now_garbage; 476 477extern struct timeval next_bcast; /* next general broadcast */ 478extern struct timeval age_timer; /* next check of old routes */ 479extern struct timeval no_flash; /* inhibit flash update until then */ 480extern struct timeval rdisc_timer; /* next advert. or solicitation */ 481extern int rdisc_ok; /* using solicited route */ 482 483extern struct timeval ifinit_timer; /* time to check interfaces */ 484 485extern naddr loopaddr; /* our address on loopback */ 486extern int tot_interfaces; /* # of remote and local interfaces */ 487extern int rip_interfaces; /* # of interfaces doing RIP */ 488extern struct ifhead ifnet; /* all interfaces */ 489extern struct interface *remote_if; /* remote interfaces */ 490extern int have_ripv1_out; /* have a RIPv1 interface */ 491extern int have_ripv1_in; 492extern int need_flash; /* flash update needed */ 493extern struct timeval need_kern; /* need to update kernel table */ 494extern u_int update_seqno; /* a route has changed */ 495 496extern int tracelevel, new_tracelevel; 497#define MAX_TRACELEVEL 4 498#define TRACEKERNEL (tracelevel >= 4) /* log kernel changes */ 499#define TRACECONTENTS (tracelevel >= 3) /* display packet contents */ 500#define TRACEPACKETS (tracelevel >= 2) /* note packets */ 501#define TRACEACTIONS (tracelevel != 0) 502extern FILE *ftrace; /* output trace file */ 503extern char inittracename[PATH_MAX]; 504 505extern struct radix_node_head *rhead; 506 507 508#ifdef sgi 509/* Fix conflicts */ 510#define dup2(x,y) BSDdup2(x,y) 511#endif /* sgi */ 512 513extern void fix_sock(int, const char *); 514extern void fix_select(void); 515extern void rip_off(void); 516extern void rip_on(struct interface *); 517 518extern void bufinit(void); 519extern int output(enum output_type, struct sockaddr_in *, 520 struct interface *, struct rip *, int); 521extern void clr_ws_buf(struct ws_buf *, struct auth *); 522extern void rip_query(void); 523extern void rip_bcast(int); 524extern void supply(struct sockaddr_in *, struct interface *, 525 enum output_type, int, int, int); 526 527extern void msglog(const char *, ...) PATTRIB(1,2); 528struct msg_limit { 529 time_t reuse; 530 struct msg_sub { 531 naddr addr; 532 time_t until; 533# define MSG_SUBJECT_N 8 534 } subs[MSG_SUBJECT_N]; 535}; 536extern void msglim(struct msg_limit *, naddr, 537 const char *, ...) PATTRIB(3,4); 538#define LOGERR(msg) msglog(msg ": %s", strerror(errno)) 539extern void logbad(int, const char *, ...) PATTRIB(2,3); 540#define BADERR(dump,msg) logbad(dump,msg ": %s", strerror(errno)) 541#ifdef DEBUG 542#define DBGERR(dump,msg) BADERR(dump,msg) 543#else 544#define DBGERR(dump,msg) LOGERR(msg) 545#endif 546extern char *naddr_ntoa(naddr); 547extern const char *saddr_ntoa(struct sockaddr *); 548 549extern void *rtmalloc(size_t, const char *); 550extern void timevaladd(struct timeval *, struct timeval *); 551extern void intvl_random(struct timeval *, u_long, u_long); 552extern int getnet(char *, naddr *, naddr *); 553extern int gethost(char *, naddr *); 554extern void gwkludge(void); 555extern const char *parse_parms(char *, int); 556extern const char *check_parms(struct parm *); 557extern void get_parms(struct interface *); 558 559extern void lastlog(void); 560extern void trace_close(int); 561extern void set_tracefile(const char *, const char *, int); 562extern void tracelevel_msg(const char *, int); 563extern void trace_off(const char*, ...) PATTRIB(1,2); 564extern void set_tracelevel(void); 565extern void trace_flush(void); 566extern void trace_misc(const char *, ...) PATTRIB(1,2); 567extern void trace_act(const char *, ...) PATTRIB(1,2); 568extern void trace_pkt(const char *, ...) PATTRIB(1,2); 569extern void trace_add_del(const char *, struct rt_entry *); 570extern void trace_change(struct rt_entry *, u_int, struct rt_spare *, 571 const char *); 572extern void trace_if(const char *, struct interface *); 573extern void trace_upslot(struct rt_entry *, struct rt_spare *, 574 struct rt_spare *); 575extern void trace_rip(const char*, const char*, struct sockaddr_in *, 576 struct interface *, struct rip *, int); 577extern char *addrname(naddr, naddr, int); 578extern char *rtname(naddr, naddr, naddr); 579 580extern void rdisc_age(naddr); 581extern void set_rdisc_mg(struct interface *, int); 582extern void set_supplier(void); 583extern void if_bad_rdisc(struct interface *); 584extern void if_ok_rdisc(struct interface *); 585extern void read_rip(int, struct interface *); 586extern void read_rt(void); 587extern void read_d(void); 588extern void rdisc_adv(void); 589extern void rdisc_sol(void); 590 591extern void sigalrm(int); 592extern void sigterm(int); 593 594extern void sigtrace_on(int); 595extern void sigtrace_off(int); 596 597extern void flush_kern(void); 598extern void age(naddr); 599 600extern void ag_flush(naddr, naddr, void (*)(struct ag_info *)); 601extern void ag_check(naddr, naddr, naddr, naddr, char, char, u_int, 602 u_short, u_short, void (*)(struct ag_info *)); 603extern void del_static(naddr, naddr, naddr, int); 604extern void del_redirects(naddr, time_t); 605extern struct rt_entry *rtget(naddr, naddr); 606extern struct rt_entry *rtfind(naddr); 607extern void rtinit(void); 608extern void rtadd(naddr, naddr, u_int, struct rt_spare *); 609extern void rtchange(struct rt_entry *, u_int, struct rt_spare *, char *); 610extern void rtdelete(struct rt_entry *); 611extern void rts_delete(struct rt_entry *, struct rt_spare *); 612extern void rtbad_sub(struct rt_entry *); 613extern void rtswitch(struct rt_entry *, struct rt_spare *); 614extern void rtbad(struct rt_entry *); 615 616#define S_ADDR(x) (((struct sockaddr_in *)(x))->sin_addr.s_addr) 617#define INFO_DST(I) ((I)->rti_info[RTAX_DST]) 618#define INFO_GATE(I) ((I)->rti_info[RTAX_GATEWAY]) 619#define INFO_MASK(I) ((I)->rti_info[RTAX_NETMASK]) 620#define INFO_IFA(I) ((I)->rti_info[RTAX_IFA]) 621#define INFO_IFP(I) ((I)->rti_info[RTAX_IFP]) 622#define INFO_AUTHOR(I) ((I)->rti_info[RTAX_AUTHOR]) 623#define INFO_BRD(I) ((I)->rti_info[RTAX_BRD]) 624void rt_xaddrs(struct rt_addrinfo *, struct sockaddr *, struct sockaddr *, 625 int); 626 627extern naddr std_mask(naddr); 628extern naddr ripv1_mask_net(naddr, struct interface *); 629extern naddr ripv1_mask_host(naddr,struct interface *); 630#define on_net(a,net,mask) (((ntohl(a) ^ (net)) & (mask)) == 0) 631extern int check_dst(naddr); 632extern struct interface *check_dup(naddr, naddr, naddr, int); 633extern int check_remote(struct interface *); 634extern int addrouteforif(struct interface *); 635extern void ifinit(void); 636extern int walk_bad(struct radix_node *, struct walkarg *); 637extern int if_ok(struct interface *, const char *); 638extern void if_sick(struct interface *); 639extern void if_bad(struct interface *); 640extern void if_link(struct interface *); 641extern struct interface *ifwithaddr(naddr, int, int); 642extern struct interface *ifwithname(char *, naddr); 643extern struct interface *ifwithindex(u_short, int); 644extern struct interface *iflookup(naddr); 645 646extern struct auth *find_auth(struct interface *); 647extern void end_md5_auth(struct ws_buf *, struct auth *); 648 649#if defined(__FreeBSD__) || defined(__NetBSD__) 650#include <md5.h> 651#else 652#define MD5_DIGEST_LEN 16 653typedef struct { 654 u_int32_t state[4]; /* state (ABCD) */ 655 u_int32_t count[2]; /* # of bits, modulo 2^64 (LSB 1st) */ 656 unsigned char buffer[64]; /* input buffer */ 657} MD5_CTX; 658extern void MD5Init(MD5_CTX*); 659extern void MD5Update(MD5_CTX*, u_char*, u_int); 660extern void MD5Final(u_char[MD5_DIGEST_LEN], MD5_CTX*); 661#endif 662