defs.h revision 1.16
1 /* $NetBSD: defs.h,v 1.16 1998/06/02 18:02:55 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)defs.h 8.1 (Berkeley) 6/5/93 36 */ 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 vestigual 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/time.h> 77 #include <sys/types.h> 78 #include <sys/param.h> 79 #include <sys/ioctl.h> 80 #include <sys/sysctl.h> 81 #include <sys/socket.h> 82 #ifdef sgi 83 #define _USER_ROUTE_TREE 84 #include <net/radix.h> 85 #else 86 #include "radix.h" 87 #endif 88 #include <net/if.h> 89 #include <net/route.h> 90 #include <net/if_dl.h> 91 #include <netinet/in.h> 92 #include <arpa/inet.h> 93 #define RIPVERSION RIPv2 94 #include <protocols/routed.h> 95 96 /* Type of an IP address. 97 * Some systems do not like to pass structures, so do not use in_addr. 98 * Some systems think a long has 64 bits, which would be a gross waste. 99 * So define it here so it can be changed for the target system. 100 * It should be defined somewhere netinet/in.h, but it is not. 101 */ 102 #ifdef sgi 103 #define naddr __uint32_t 104 #elif defined (__NetBSD__) 105 #define naddr u_int32_t 106 #define _HAVE_SA_LEN 107 #define _HAVE_SIN_LEN 108 #else 109 #define naddr u_long 110 #define _HAVE_SA_LEN 111 #define _HAVE_SIN_LEN 112 #endif 113 114 /* Turn on if IP_DROP_MEMBERSHIP and IP_ADD_MEMBERSHIP do not look at 115 * the dstaddr of point-to-point interfaces. 116 */ 117 #if defined(__NetBSD__) 118 #define MCAST_PPP_BUG 119 #endif 120 121 #define DAY (24*60*60) 122 #define NEVER DAY /* a long time */ 123 #define EPOCH NEVER /* bias time by this to avoid <0 */ 124 125 /* Scan the kernel regularly to see if any interfaces have appeared or been 126 * turned off. These must be less than STALE_TIME. 127 */ 128 #define CHECK_BAD_INTERVAL 5 /* when an interface is known bad */ 129 #define CHECK_ACT_INTERVAL 30 /* when advertising */ 130 #define CHECK_QUIET_INTERVAL 300 /* when not */ 131 132 #define LIM_SEC(s,l) ((s).tv_sec = MIN((s).tv_sec, (l))) 133 134 /* Metric used for fake default routes. It ought to be 15, but when 135 * processing advertised routes, previous versions of `routed` added 136 * to the received metric and discarded the route if the total was 16 137 * or larger. 138 */ 139 #define FAKE_METRIC (HOPCNT_INFINITY-2) 140 141 142 /* Router Discovery parameters */ 143 #ifndef sgi 144 #define INADDR_ALLROUTERS_GROUP 0xe0000002 /* 224.0.0.2 */ 145 #endif 146 #define MaxMaxAdvertiseInterval 1800 147 #define MinMaxAdvertiseInterval 4 148 #define DefMaxAdvertiseInterval 600 149 #define DEF_PreferenceLevel 0 150 #define MIN_PreferenceLevel 0x80000000 151 152 #define MAX_INITIAL_ADVERT_INTERVAL 16 153 #define MAX_INITIAL_ADVERTS 3 154 #define MAX_RESPONSE_DELAY 2 155 156 #define MAX_SOLICITATION_DELAY 1 157 #define SOLICITATION_INTERVAL 3 158 #define MAX_SOLICITATIONS 3 159 160 161 /* Bloated packet size for systems that simply add authentication to 162 * full-sized packets 163 */ 164 #define OVER_MAXPACKETSIZE (MAXPACKETSIZE+sizeof(struct netinfo)*2) 165 /* typical packet buffers */ 166 union pkt_buf { 167 char packet[OVER_MAXPACKETSIZE*2]; 168 struct rip rip; 169 }; 170 171 #define GNAME_LEN 64 /* assumed=64 in parms.c */ 172 /* bigger than IFNAMSIZ, with room for "external()" or "remote()" */ 173 #define IF_NAME_LEN (GNAME_LEN+15) 174 175 /* No more routes than this, to protect ourself in case something goes 176 * whacko and starts broadcasting zillions of bogus routes. 177 */ 178 #define MAX_ROUTES (128*1024) 179 extern int total_routes; 180 181 /* Main, daemon routing table structure 182 */ 183 struct rt_entry { 184 struct radix_node rt_nodes[2]; /* radix tree glue */ 185 u_int rt_state; 186 # define RS_IF 0x001 /* for network interface */ 187 # define RS_NET_INT 0x002 /* authority route */ 188 # define RS_NET_SYN 0x004 /* fake net route for subnet */ 189 # define RS_NO_NET_SYN (RS_LOCAL | RS_LOCAL | RS_IF) 190 # define RS_SUBNET 0x008 /* subnet route from any source */ 191 # define RS_LOCAL 0x010 /* loopback for pt-to-pt */ 192 # define RS_MHOME 0x020 /* from -m */ 193 # define RS_STATIC 0x040 /* from the kernel */ 194 # define RS_RDISC 0x080 /* from router discovery */ 195 struct sockaddr_in rt_dst_sock; 196 naddr rt_mask; 197 struct rt_spare { 198 struct interface *rts_ifp; 199 naddr rts_gate; /* forward packets here */ 200 naddr rts_router; /* on the authority of this router */ 201 char rts_metric; 202 u_short rts_tag; 203 time_t rts_time; /* timer to junk stale routes */ 204 u_int rts_de_ag; /* de-aggregation level */ 205 #define NUM_SPARES 4 206 } rt_spares[NUM_SPARES]; 207 u_int rt_seqno; /* when last changed */ 208 char rt_poison_metric; /* to notice maximum recently */ 209 time_t rt_poison_time; /* advertised metric */ 210 }; 211 #define rt_dst rt_dst_sock.sin_addr.s_addr 212 #define rt_ifp rt_spares[0].rts_ifp 213 #define rt_gate rt_spares[0].rts_gate 214 #define rt_router rt_spares[0].rts_router 215 #define rt_metric rt_spares[0].rts_metric 216 #define rt_tag rt_spares[0].rts_tag 217 #define rt_time rt_spares[0].rts_time 218 #define rt_de_ag rt_spares[0].rts_de_ag 219 220 #define HOST_MASK 0xffffffff 221 #define RT_ISHOST(rt) ((rt)->rt_mask == HOST_MASK) 222 223 /* age all routes that 224 * are not from -g, -m, or static routes from the kernel 225 * not unbroken interface routes 226 * but not broken interfaces 227 * nor non-passive, remote interfaces that are not aliases 228 * (i.e. remote & metric=0) 229 */ 230 #define AGE_RT(rt_state,ifp) (0 == ((rt_state) & (RS_MHOME | RS_STATIC \ 231 | RS_NET_SYN | RS_RDISC)) \ 232 && (!((rt_state) & RS_IF) \ 233 || (ifp) == 0 \ 234 || (((ifp)->int_state & IS_REMOTE) \ 235 && !((ifp)->int_state & IS_PASSIVE)))) 236 237 /* true if A is better than B 238 * Better if 239 * - A is not a poisoned route 240 * - and A is not stale 241 * - and A has a shorter path 242 * - or is the router speaking for itself 243 * - or the current route is equal but stale 244 * - or it is a host route advertised by a system for itself 245 */ 246 #define BETTER_LINK(rt,A,B) ((A)->rts_metric < HOPCNT_INFINITY \ 247 && now_stale <= (A)->rts_time \ 248 && ((A)->rts_metric < (B)->rts_metric \ 249 || ((A)->rts_gate == (A)->rts_router \ 250 && (B)->rts_gate != (B)->rts_router) \ 251 || ((A)->rts_metric == (B)->rts_metric \ 252 && now_stale > (B)->rts_time) \ 253 || (RT_ISHOST(rt) \ 254 && (rt)->rt_dst == (A)->rts_router \ 255 && (A)->rts_metric == (B)->rts_metric))) 256 257 258 /* An "interface" is similar to a kernel ifnet structure, except it also 259 * handles "logical" or "IS_REMOTE" interfaces (remote gateways). 260 */ 261 struct interface { 262 struct interface *int_next, **int_prev; 263 struct interface *int_ahash, **int_ahash_prev; 264 struct interface *int_bhash, **int_bhash_prev; 265 struct interface *int_rlink, **int_rlink_prev; 266 struct interface *int_nhash, **int_nhash_prev; 267 char int_name[IF_NAME_LEN+1]; 268 u_short int_index; 269 naddr int_addr; /* address on this host (net order) */ 270 naddr int_brdaddr; /* broadcast address (n) */ 271 naddr int_dstaddr; /* other end of pt-to-pt link (n) */ 272 naddr int_net; /* working network # (host order)*/ 273 naddr int_mask; /* working net mask (host order) */ 274 naddr int_ripv1_mask; /* for inferring a mask (n) */ 275 naddr int_std_addr; /* class A/B/C address (n) */ 276 naddr int_std_net; /* class A/B/C network (h) */ 277 naddr int_std_mask; /* class A/B/C netmask (h) */ 278 int int_rip_sock; /* for queries */ 279 int int_if_flags; /* some bits copied from kernel */ 280 u_int int_state; 281 time_t int_act_time; /* last thought healthy */ 282 time_t int_query_time; 283 u_short int_transitions; /* times gone up-down */ 284 char int_metric; 285 char int_d_metric; /* for faked default route */ 286 struct int_data { 287 u_int ipackets; /* previous network stats */ 288 u_int ierrors; 289 u_int opackets; 290 u_int oerrors; 291 #ifdef sgi 292 u_int odrops; 293 #endif 294 time_t ts; /* timestamp on network stats */ 295 } int_data; 296 # define MAX_AUTH_KEYS 5 297 struct auth { /* authentication info */ 298 u_char type; 299 u_char key[RIP_AUTH_PW_LEN]; 300 u_char keyid; 301 time_t start, end; 302 } int_auth[MAX_AUTH_KEYS]; 303 /* router discovery parameters */ 304 int int_rdisc_pref; /* signed preference to advertise */ 305 int int_rdisc_int; /* MaxAdvertiseInterval */ 306 int int_rdisc_cnt; 307 struct timeval int_rdisc_timer; 308 }; 309 310 /* bits in int_state */ 311 #define IS_ALIAS 0x0000001 /* interface alias */ 312 #define IS_SUBNET 0x0000002 /* interface on subnetted network */ 313 #define IS_REMOTE 0x0000004 /* interface is not on this machine */ 314 #define IS_PASSIVE 0x0000008 /* remote and does not do RIP */ 315 #define IS_EXTERNAL 0x0000010 /* handled by EGP or something */ 316 #define IS_CHECKED 0x0000020 /* still exists */ 317 #define IS_ALL_HOSTS 0x0000040 /* in INADDR_ALLHOSTS_GROUP */ 318 #define IS_ALL_ROUTERS 0x0000080 /* in INADDR_ALLROUTERS_GROUP */ 319 #define IS_DISTRUST 0x0000100 /* ignore untrusted routers */ 320 #define IS_REDIRECT_OK 0x0000200 /* accept ICMP redirects */ 321 #define IS_BROKE 0x0000400 /* seems to be broken */ 322 #define IS_SICK 0x0000800 /* seems to be broken */ 323 #define IS_DUP 0x0001000 /* has a duplicate address */ 324 #define IS_NEED_NET_SYN 0x0002000 /* need RS_NET_SYN route */ 325 #define IS_NO_AG 0x0004000 /* do not aggregate subnets */ 326 #define IS_NO_SUPER_AG 0x0008000 /* do not aggregate networks */ 327 #define IS_NO_RIPV1_IN 0x0010000 /* no RIPv1 input at all */ 328 #define IS_NO_RIPV2_IN 0x0020000 /* no RIPv2 input at all */ 329 #define IS_NO_RIP_IN (IS_NO_RIPV1_IN | IS_NO_RIPV2_IN) 330 #define IS_RIP_IN_OFF(s) (((s) & IS_NO_RIP_IN) == IS_NO_RIP_IN) 331 #define IS_NO_RIPV1_OUT 0x0040000 /* no RIPv1 output at all */ 332 #define IS_NO_RIPV2_OUT 0x0080000 /* no RIPv2 output at all */ 333 #define IS_NO_RIP_OUT (IS_NO_RIPV1_OUT | IS_NO_RIPV2_OUT) 334 #define IS_NO_RIP (IS_NO_RIP_OUT | IS_NO_RIP_IN) 335 #define IS_RIP_OUT_OFF(s) (((s) & IS_NO_RIP_OUT) == IS_NO_RIP_OUT) 336 #define IS_RIP_OFF(s) (((s) & IS_NO_RIP) == IS_NO_RIP) 337 #define IS_NO_RIP_MCAST 0x0100000 /* broadcast RIPv2 */ 338 #define IS_NO_ADV_IN 0x0200000 /* do not listen to advertisements */ 339 #define IS_NO_SOL_OUT 0x0400000 /* send no solicitations */ 340 #define IS_SOL_OUT 0x0800000 /* send solicitations */ 341 #define GROUP_IS_SOL_OUT (IS_SOL_OUT | IS_NO_SOL_OUT) 342 #define IS_NO_ADV_OUT 0x1000000 /* do not advertise rdisc */ 343 #define IS_ADV_OUT 0x2000000 /* advertise rdisc */ 344 #define GROUP_IS_ADV_OUT (IS_NO_ADV_OUT | IS_ADV_OUT) 345 #define IS_BCAST_RDISC 0x4000000 /* broadcast instead of multicast */ 346 #define IS_NO_RDISC (IS_NO_ADV_IN | IS_NO_SOL_OUT | IS_NO_ADV_OUT) 347 #define IS_PM_RDISC 0x8000000 /* poor-man's router discovery */ 348 349 #define iff_up(f) ((f) & IFF_UP) 350 351 352 /* Information for aggregating routes */ 353 #define NUM_AG_SLOTS 32 354 struct ag_info { 355 struct ag_info *ag_fine; /* slot with finer netmask */ 356 struct ag_info *ag_cors; /* more coarse netmask */ 357 naddr ag_dst_h; /* destination in host byte order */ 358 naddr ag_mask; 359 naddr ag_gate; 360 naddr ag_nhop; 361 char ag_metric; /* metric to be advertised */ 362 char ag_pref; /* aggregate based on this */ 363 u_int ag_seqno; 364 u_short ag_tag; 365 u_short ag_state; 366 #define AGS_SUPPRESS 0x001 /* combine with coaser mask */ 367 #define AGS_AGGREGATE 0x002 /* synthesize combined routes */ 368 #define AGS_REDUN0 0x004 /* redundant, finer routes output */ 369 #define AGS_REDUN1 0x008 370 #define AG_IS_REDUN(state) (((state) & (AGS_REDUN0 | AGS_REDUN1)) \ 371 == (AGS_REDUN0 | AGS_REDUN1)) 372 #define AGS_GATEWAY 0x010 /* tell kernel RTF_GATEWAY */ 373 #define AGS_IF 0x020 /* for an interface */ 374 #define AGS_RIPV2 0x040 /* send only as RIPv2 */ 375 #define AGS_FINE_GATE 0x080 /* ignore differing ag_gate when this 376 * has the finer netmask */ 377 #define AGS_CORS_GATE 0x100 /* ignore differing gate when this 378 * has the coarser netmaks */ 379 #define AGS_SPLIT_HZ 0x200 /* suppress for split horizon */ 380 381 /* some bits are set if they are set on either route */ 382 #define AGS_AGGREGATE_EITHER (AGS_RIPV2 | AGS_GATEWAY | \ 383 AGS_SUPPRESS | AGS_CORS_GATE) 384 }; 385 386 387 /* parameters for interfaces */ 388 extern struct parm { 389 struct parm *parm_next; 390 char parm_name[IF_NAME_LEN+1]; 391 naddr parm_net; 392 naddr parm_mask; 393 394 char parm_d_metric; 395 u_int parm_int_state; 396 int parm_rdisc_pref; /* signed IRDP preference */ 397 int parm_rdisc_int; /* IRDP advertising internval */ 398 struct auth parm_auth[MAX_AUTH_KEYS]; 399 } *parms; 400 401 /* authority for internal networks */ 402 extern struct intnet { 403 struct intnet *intnet_next; 404 naddr intnet_addr; /* network byte order */ 405 naddr intnet_mask; 406 char intnet_metric; 407 } *intnets; 408 409 /* defined RIPv1 netmasks */ 410 extern struct r1net { 411 struct r1net *r1net_next; 412 naddr r1net_net; /* host order */ 413 naddr r1net_match; 414 naddr r1net_mask; 415 } *r1nets; 416 417 /* trusted routers */ 418 extern struct tgate { 419 struct tgate *tgate_next; 420 naddr tgate_addr; 421 #define MAX_TGATE_NETS 32 422 struct tgate_net { 423 naddr net; /* host order */ 424 naddr mask; 425 } tgate_nets[MAX_TGATE_NETS]; 426 } *tgates; 427 428 enum output_type {OUT_QUERY, OUT_UNICAST, OUT_BROADCAST, OUT_MULTICAST, 429 NO_OUT_MULTICAST, NO_OUT_RIPV2}; 430 431 /* common output buffers */ 432 extern struct ws_buf { 433 struct rip *buf; 434 struct netinfo *n; 435 struct netinfo *base; 436 struct netinfo *lim; 437 enum output_type type; 438 } v12buf, v2buf; 439 440 extern pid_t mypid; 441 extern naddr myaddr; /* main address of this system */ 442 443 extern int stopint; /* !=0 to stop */ 444 445 extern int sock_max; 446 extern int rip_sock; /* RIP socket */ 447 extern struct interface *rip_sock_mcast; /* current multicast interface */ 448 extern int rt_sock; /* routing socket */ 449 extern int rt_sock_seqno; 450 extern int rdisc_sock; /* router-discovery raw socket */ 451 452 extern int seqno; /* sequence number for messages */ 453 extern int supplier; /* process should supply updates */ 454 extern int supplier_set; /* -s or -q requested */ 455 extern int lookforinterfaces; /* 1=probe for new up interfaces */ 456 extern int ridhosts; /* 1=reduce host routes */ 457 extern int mhome; /* 1=want multi-homed host route */ 458 extern int advertise_mhome; /* 1=must continue adverising it */ 459 extern int auth_ok; /* 1=ignore auth if we do not care */ 460 461 extern struct timeval clk; /* system clock's idea of time */ 462 extern struct timeval epoch; /* system clock when started */ 463 extern struct timeval now; /* current idea of time */ 464 extern time_t now_stale; 465 extern time_t now_expire; 466 extern time_t now_garbage; 467 468 extern struct timeval next_bcast; /* next general broadcast */ 469 extern struct timeval age_timer; /* next check of old routes */ 470 extern struct timeval no_flash; /* inhibit flash update until then */ 471 extern struct timeval rdisc_timer; /* next advert. or solicitation */ 472 extern int rdisc_ok; /* using solicted route */ 473 474 extern struct timeval ifinit_timer; /* time to check interfaces */ 475 476 extern naddr loopaddr; /* our address on loopback */ 477 extern int tot_interfaces; /* # of remote and local interfaces */ 478 extern int rip_interfaces; /* # of interfaces doing RIP */ 479 extern struct interface *ifnet; /* all interfaces */ 480 extern struct interface *remote_if; /* remote interfaces */ 481 extern int have_ripv1_out; /* have a RIPv1 interface */ 482 extern int have_ripv1_in; 483 extern int need_flash; /* flash update needed */ 484 extern struct timeval need_kern; /* need to update kernel table */ 485 extern int update_seqno; /* a route has changed */ 486 487 extern int tracelevel, new_tracelevel; 488 #define MAX_TRACELEVEL 4 489 #define TRACEKERNEL (tracelevel >= 4) /* log kernel changes */ 490 #define TRACECONTENTS (tracelevel >= 3) /* display packet contents */ 491 #define TRACEPACKETS (tracelevel >= 2) /* note packets */ 492 #define TRACEACTIONS (tracelevel != 0) 493 extern FILE *ftrace; /* output trace file */ 494 extern char inittracename[MAXPATHLEN+1]; 495 496 extern struct radix_node_head *rhead; 497 498 499 #ifdef sgi 500 /* Fix conflicts */ 501 #define dup2(x,y) BSDdup2(x,y) 502 #endif /* sgi */ 503 504 extern void fix_sock(int, char *); 505 extern void fix_select(void); 506 extern void rip_off(void); 507 extern void rip_on(struct interface *); 508 509 extern void bufinit(void); 510 extern int output(enum output_type, struct sockaddr_in *, 511 struct interface *, struct rip *, int); 512 extern void clr_ws_buf(struct ws_buf *, struct auth *); 513 extern void rip_query(void); 514 extern void rip_bcast(int); 515 extern void supply(struct sockaddr_in *, struct interface *, 516 enum output_type, int, int, int); 517 518 extern void msglog(char *, ...); 519 struct msg_limit { 520 time_t reuse; 521 struct msg_sub { 522 naddr addr; 523 time_t until; 524 # define MSG_SUBJECT_N 8 525 } subs[MSG_SUBJECT_N]; 526 }; 527 extern void msglim(struct msg_limit *, naddr, char *, ...); 528 #define LOGERR(msg) msglog(msg ": %s", strerror(errno)) 529 extern void logbad(int, char *, ...); 530 #define BADERR(dump,msg) logbad(dump,msg ": %s", strerror(errno)) 531 #ifdef DEBUG 532 #define DBGERR(dump,msg) BADERR(dump,msg) 533 #else 534 #define DBGERR(dump,msg) LOGERR(msg) 535 #endif 536 extern char *naddr_ntoa(naddr); 537 extern char *saddr_ntoa(struct sockaddr *); 538 539 extern void *rtmalloc(size_t, char *); 540 extern void timevaladd(struct timeval *, struct timeval *); 541 extern void intvl_random(struct timeval *, u_long, u_long); 542 extern int getnet(char *, naddr *, naddr *); 543 extern int gethost(char *, naddr *); 544 extern void gwkludge(void); 545 extern char *parse_parms(char *, int); 546 extern char *check_parms(struct parm *); 547 extern void get_parms(struct interface *); 548 549 extern void lastlog(void); 550 extern void trace_close(int); 551 extern void set_tracefile(char *, char *, int); 552 extern void tracelevel_msg(char *, int); 553 extern void trace_off(char*, ...); 554 extern void set_tracelevel(void); 555 extern void trace_flush(void); 556 extern void trace_misc(char *, ...); 557 extern void trace_act(char *, ...); 558 extern void trace_pkt(char *, ...); 559 extern void trace_add_del(char *, struct rt_entry *); 560 extern void trace_change(struct rt_entry *, u_int, struct rt_spare *, 561 char *); 562 extern void trace_if(char *, struct interface *); 563 extern void trace_upslot(struct rt_entry *, struct rt_spare *, 564 struct rt_spare *); 565 extern void trace_rip(char*, char*, struct sockaddr_in *, 566 struct interface *, struct rip *, int); 567 extern char *addrname(naddr, naddr, int); 568 extern char *rtname(naddr, naddr, naddr); 569 570 extern void rdisc_age(naddr); 571 extern void set_rdisc_mg(struct interface *, int); 572 extern void set_supplier(void); 573 extern void if_bad_rdisc(struct interface *); 574 extern void if_ok_rdisc(struct interface *); 575 extern void read_rip(int, struct interface *); 576 extern void read_rt(void); 577 extern void read_d(void); 578 extern void rdisc_adv(void); 579 extern void rdisc_sol(void); 580 581 extern void sigalrm(int); 582 extern void sigterm(int); 583 584 extern void sigtrace_on(int); 585 extern void sigtrace_off(int); 586 587 extern void flush_kern(void); 588 extern void age(naddr); 589 590 extern void ag_flush(naddr, naddr, void (*)(struct ag_info *)); 591 extern void ag_check(naddr, naddr, naddr, naddr, char, char, u_int, 592 u_short, u_short, void (*)(struct ag_info *)); 593 extern void del_static(naddr, naddr, naddr, int); 594 extern void del_redirects(naddr, time_t); 595 extern struct rt_entry *rtget(naddr, naddr); 596 extern struct rt_entry *rtfind(naddr); 597 extern void rtinit(void); 598 extern void rtadd(naddr, naddr, u_int, struct rt_spare *); 599 extern void rtchange(struct rt_entry *, u_int, struct rt_spare *, char *); 600 extern void rtdelete(struct rt_entry *); 601 extern void rts_delete(struct rt_entry *, struct rt_spare *); 602 extern void rtbad_sub(struct rt_entry *); 603 extern void rtswitch(struct rt_entry *, struct rt_spare *); 604 extern void rtbad(struct rt_entry *); 605 606 #define S_ADDR(x) (((struct sockaddr_in *)(x))->sin_addr.s_addr) 607 #define INFO_DST(I) ((I)->rti_info[RTAX_DST]) 608 #define INFO_GATE(I) ((I)->rti_info[RTAX_GATEWAY]) 609 #define INFO_MASK(I) ((I)->rti_info[RTAX_NETMASK]) 610 #define INFO_IFA(I) ((I)->rti_info[RTAX_IFA]) 611 #define INFO_IFP(I) ((I)->rti_info[RTAX_IFP]) 612 #define INFO_AUTHOR(I) ((I)->rti_info[RTAX_AUTHOR]) 613 #define INFO_BRD(I) ((I)->rti_info[RTAX_BRD]) 614 void rt_xaddrs(struct rt_addrinfo *, struct sockaddr *, struct sockaddr *, 615 int); 616 617 extern naddr std_mask(naddr); 618 extern naddr ripv1_mask_net(naddr, struct interface *); 619 extern naddr ripv1_mask_host(naddr,struct interface *); 620 #define on_net(a,net,mask) (((ntohl(a) ^ (net)) & (mask)) == 0) 621 extern int check_dst(naddr); 622 extern struct interface *check_dup(naddr, naddr, naddr, int); 623 extern int check_remote(struct interface *); 624 extern int addrouteforif(struct interface *); 625 extern void ifinit(void); 626 extern int walk_bad(struct radix_node *, struct walkarg *); 627 extern int if_ok(struct interface *, char *); 628 extern void if_sick(struct interface *); 629 extern void if_bad(struct interface *); 630 extern void if_link(struct interface *); 631 extern struct interface *ifwithaddr(naddr, int, int); 632 extern struct interface *ifwithname(char *, naddr); 633 extern struct interface *ifwithindex(u_short, int); 634 extern struct interface *iflookup(naddr); 635 636 extern struct auth *find_auth(struct interface *); 637 extern void end_md5_auth(struct ws_buf *, struct auth *); 638 639 #define MD5_DIGEST_LEN 16 640 typedef struct { 641 u_int32_t state[4]; /* state (ABCD) */ 642 u_int32_t count[2]; /* # of bits, modulo 2^64 (LSB 1st) */ 643 unsigned char buffer[64]; /* input buffer */ 644 } MD5_CTX; 645 extern void MD5Init(MD5_CTX*); 646 extern void MD5Update(MD5_CTX*, u_char*, u_int); 647 extern void MD5Final(u_char[MD5_DIGEST_LEN], MD5_CTX*); 648
Indexes created Fri Sep 26 08:10:20 GMT 2025