defs.h revision 1.1.1.5
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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)defs.h 8.1 (Berkeley) 6/5/93 34 * 35 * $NetBSD: defs.h,v 1.1.1.5 1997/02/03 21:06:17 christos Exp $ 36 */ 37 38 #ifndef __NetBSD__ 39 #ident "$Revision: 1.1.1.5 $" 40 #endif 41 42 /* Definitions for RIPv2 routing process. 43 * 44 * This code is based on the 4.4BSD `routed` daemon, with extensions to 45 * support: 46 * RIPv2, including variable length subnet masks. 47 * Router Discovery 48 * aggregate routes in the kernel tables. 49 * aggregate advertised routes. 50 * maintain spare routes for faster selection of another gateway 51 * when the current gateway dies. 52 * timers on routes with second granularity so that selection 53 * of a new route does not wait 30-60 seconds. 54 * tolerance of static routes. 55 * tell the kernel hop counts 56 * do not advertise if ipforwarding=0 57 * 58 * The vestigual support for other protocols has been removed. There 59 * is no likelihood that IETF RIPv1 or RIPv2 will ever be used with 60 * other protocols. The result is far smaller, faster, cleaner, and 61 * perhaps understandable. 62 * 63 * The accumulation of special flags and kludges added over the many 64 * years have been simplified and integrated. 65 */ 66 67 #include <stdio.h> 68 #include <netdb.h> 69 #include <stdlib.h> 70 #include <unistd.h> 71 #include <errno.h> 72 #include <string.h> 73 #ifdef sgi 74 #include <strings.h> 75 #include <bstring.h> 76 #endif 77 #include <stdarg.h> 78 #include <syslog.h> 79 #include <time.h> 80 #include <sys/time.h> 81 #include <sys/types.h> 82 #include <sys/param.h> 83 #include <sys/ioctl.h> 84 #include <sys/sysctl.h> 85 #include <sys/socket.h> 86 #ifdef sgi 87 #include <net/radix.h> 88 #else 89 #include "radix.h" 90 #endif 91 #include <net/if.h> 92 #include <net/route.h> 93 #include <net/if_dl.h> 94 #include <netinet/in.h> 95 #include <arpa/inet.h> 96 #define RIPVERSION RIPv2 97 #include <protocols/routed.h> 98 99 100 /* Type of an IP address. 101 * Some systems do not like to pass structures, so do not use in_addr. 102 * Some systems think a long has 64 bits, which would be a gross waste. 103 * So define it here so it can be changed for the target system. 104 * It should be defined somewhere netinet/in.h, but it is not. 105 */ 106 #ifdef sgi 107 #define naddr __uint32_t 108 #else 109 #ifdef __NetBSD__ 110 #define naddr u_int32_t 111 #else 112 #define naddr u_long 113 #endif 114 #define _HAVE_SA_LEN 115 #define _HAVE_SIN_LEN 116 #endif 117 118 /* Turn on if IP_DROP_MEMBERSHIP and IP_ADD_MEMBERSHIP do not look at 119 * the dstaddr of point-to-point interfaces. 120 */ 121 /* #define MCAST_PPP_BUG */ 122 123 #define DAY (24*60*60) 124 #define NEVER DAY /* a long time */ 125 #define EPOCH NEVER /* bias time by this to avoid <0 */ 126 127 /* Scan the kernel regularly to see if any interfaces have appeared or been 128 * turned off. These must be less than STALE_TIME. 129 */ 130 #define CHECK_BAD_INTERVAL 5 /* when an interface is known bad */ 131 #define CHECK_ACT_INTERVAL 30 /* when advertising */ 132 #define CHECK_QUIET_INTERVAL 300 /* when not */ 133 134 #define LIM_SEC(s,l) ((s).tv_sec = MIN((s).tv_sec, (l))) 135 136 /* Metric used for fake default routes. It ought to be 15, but when 137 * processing advertised routes, previous versions of `routed` added 138 * to the received metric and discarded the route if the total was 16 139 * or larger. 140 */ 141 #define FAKE_METRIC (HOPCNT_INFINITY-2) 142 143 144 /* Router Discovery parameters */ 145 #ifndef sgi 146 #define INADDR_ALLROUTERS_GROUP 0xe0000002 /* 224.0.0.2 */ 147 #endif 148 #define MaxMaxAdvertiseInterval 1800 149 #define MinMaxAdvertiseInterval 4 150 #define DefMaxAdvertiseInterval 600 151 #define DEF_PreferenceLevel 0 152 #define MIN_PreferenceLevel 0x80000000 153 154 #define MAX_INITIAL_ADVERT_INTERVAL 16 155 #define MAX_INITIAL_ADVERTS 3 156 #define MAX_RESPONSE_DELAY 2 157 158 #define MAX_SOLICITATION_DELAY 1 159 #define SOLICITATION_INTERVAL 3 160 #define MAX_SOLICITATIONS 3 161 162 163 /* Bloated packet size for systems that simply add authentication to 164 * full-sized packets 165 */ 166 #define OVER_MAXPACKETSIZE (MAXPACKETSIZE+sizeof(struct netinfo)*2) 167 /* typical packet buffers */ 168 union pkt_buf { 169 char packet[OVER_MAXPACKETSIZE*2]; 170 struct rip rip; 171 }; 172 173 174 /* No more routes than this, to protect ourself in case something goes 175 * whacko and starts broadcasting zillions of bogus routes. 176 */ 177 #define MAX_ROUTES (128*1024) 178 extern int total_routes; 179 180 /* Main, daemon routing table structure 181 */ 182 struct rt_entry { 183 struct radix_node rt_nodes[2]; /* radix tree glue */ 184 u_int rt_state; 185 # define RS_IF 0x001 /* for network interface */ 186 # define RS_NET_INT 0x002 /* authority route */ 187 # define RS_NET_SYN 0x004 /* fake net route for subnet */ 188 # define RS_NO_NET_SYN (RS_LOCAL | RS_LOCAL | RS_IF) 189 # define RS_SUBNET 0x008 /* subnet route from any source */ 190 # define RS_LOCAL 0x010 /* loopback for pt-to-pt */ 191 # define RS_MHOME 0x020 /* from -m */ 192 # define RS_STATIC 0x040 /* from the kernel */ 193 # define RS_RDISC 0x080 /* from router discovery */ 194 struct sockaddr_in rt_dst_sock; 195 naddr rt_mask; 196 struct rt_spare { 197 struct interface *rts_ifp; 198 naddr rts_gate; /* forward packets here */ 199 naddr rts_router; /* on the authority of this router */ 200 char rts_metric; 201 u_short rts_tag; 202 time_t rts_time; /* timer to junk stale routes */ 203 #define NUM_SPARES 4 204 } rt_spares[NUM_SPARES]; 205 u_int rt_seqno; /* when last changed */ 206 char rt_poison_metric; /* to notice maximum recently */ 207 time_t rt_poison_time; /* advertised metric */ 208 }; 209 #define rt_dst rt_dst_sock.sin_addr.s_addr 210 #define rt_ifp rt_spares[0].rts_ifp 211 #define rt_gate rt_spares[0].rts_gate 212 #define rt_router rt_spares[0].rts_router 213 #define rt_metric rt_spares[0].rts_metric 214 #define rt_tag rt_spares[0].rts_tag 215 #define rt_time rt_spares[0].rts_time 216 217 #define HOST_MASK 0xffffffff 218 #define RT_ISHOST(rt) ((rt)->rt_mask == HOST_MASK) 219 220 /* age all routes that 221 * are not from -g, -m, or static routes from the kernel 222 * not unbroken interface routes 223 * but not broken interfaces 224 * nor non-passive, remote interfaces that are not aliases 225 * (i.e. remote & metric=0) 226 */ 227 #define AGE_RT(rt_state,ifp) (0 == ((rt_state) & (RS_MHOME | RS_STATIC \ 228 | RS_NET_SYN | RS_RDISC)) \ 229 && (!((rt_state) & RS_IF) \ 230 || (ifp) == 0 \ 231 || (((ifp)->int_state & IS_REMOTE) \ 232 && !((ifp)->int_state & IS_PASSIVE)))) 233 234 /* true if A is better than B 235 * Better if 236 * - A is not a poisoned route 237 * - and A is not stale 238 * - and A has a shorter path 239 * - or is the router speaking for itself 240 * - or the current route is equal but stale 241 * - or it is a host route advertised by a system for itself 242 */ 243 #define BETTER_LINK(rt,A,B) ((A)->rts_metric < HOPCNT_INFINITY \ 244 && now_stale <= (A)->rts_time \ 245 && ((A)->rts_metric < (B)->rts_metric \ 246 || ((A)->rts_gate == (A)->rts_router \ 247 && (B)->rts_gate != (B)->rts_router) \ 248 || ((A)->rts_metric == (B)->rts_metric \ 249 && now_stale > (B)->rts_time) \ 250 || (RT_ISHOST(rt) \ 251 && (rt)->rt_dst == (A)->rts_router \ 252 && (A)->rts_metric == (B)->rts_metric))) 253 254 255 /* An "interface" is similar to a kernel ifnet structure, except it also 256 * handles "logical" or "IS_REMOTE" interfaces (remote gateways). 257 */ 258 struct interface { 259 struct interface *int_next, **int_prev; 260 struct interface *int_ahash, **int_ahash_prev; 261 struct interface *int_bhash, **int_bhash_prev; 262 struct interface *int_rlink, **int_rlink_prev; 263 struct interface *int_nhash, **int_nhash_prev; 264 char int_name[IFNAMSIZ+15+1]; /* big enough for IS_REMOTE */ 265 u_short int_index; 266 naddr int_addr; /* address on this host (net order) */ 267 naddr int_brdaddr; /* broadcast address (n) */ 268 naddr int_dstaddr; /* other end of pt-to-pt link (n) */ 269 naddr int_net; /* working network # (host order)*/ 270 naddr int_mask; /* working net mask (host order) */ 271 naddr int_ripv1_mask; /* for inferring a mask (n) */ 272 naddr int_std_addr; /* class A/B/C address (n) */ 273 naddr int_std_net; /* class A/B/C network (h) */ 274 naddr int_std_mask; /* class A/B/C netmask (h) */ 275 int int_rip_sock; /* for queries */ 276 int int_if_flags; /* some bits copied from kernel */ 277 u_int int_state; 278 time_t int_act_time; /* last thought healthy */ 279 time_t int_query_time; 280 u_short int_transitions; /* times gone up-down */ 281 char int_metric; 282 char int_d_metric; /* for faked default route */ 283 struct int_data { 284 u_int ipackets; /* previous network stats */ 285 u_int ierrors; 286 u_int opackets; 287 u_int oerrors; 288 #ifdef sgi 289 u_int odrops; 290 #endif 291 time_t ts; /* timestamp on network stats */ 292 } int_data; 293 # define MAX_AUTH_KEYS 5 294 struct auth { /* authentication info */ 295 u_char type; 296 u_char key[RIP_AUTH_PW_LEN]; 297 u_char keyid; 298 time_t start, end; 299 } int_auth[MAX_AUTH_KEYS]; 300 int int_rdisc_pref; /* advertised rdisc preference */ 301 int int_rdisc_int; /* MaxAdvertiseInterval */ 302 int int_rdisc_cnt; 303 struct timeval int_rdisc_timer; 304 }; 305 306 /* bits in int_state */ 307 #define IS_ALIAS 0x0000001 /* interface alias */ 308 #define IS_SUBNET 0x0000002 /* interface on subnetted network */ 309 #define IS_REMOTE 0x0000004 /* interface is not on this machine */ 310 #define IS_PASSIVE 0x0000008 /* remote and does not do RIP */ 311 #define IS_EXTERNAL 0x0000010 /* handled by EGP or something */ 312 #define IS_CHECKED 0x0000020 /* still exists */ 313 #define IS_ALL_HOSTS 0x0000040 /* in INADDR_ALLHOSTS_GROUP */ 314 #define IS_ALL_ROUTERS 0x0000080 /* in INADDR_ALLROUTERS_GROUP */ 315 #define IS_DISTRUST 0x0000100 /* ignore untrusted routers */ 316 #define IS_REDIRECT_OK 0x0000200 /* accept ICMP redirects */ 317 #define IS_BROKE 0x0000400 /* seems to be broken */ 318 #define IS_SICK 0x0000800 /* seems to be broken */ 319 #define IS_DUP 0x0001000 /* has a duplicate address */ 320 #define IS_NEED_NET_SYN 0x0002000 /* need RS_NET_SYN route */ 321 #define IS_NO_AG 0x0004000 /* do not aggregate subnets */ 322 #define IS_NO_SUPER_AG 0x0008000 /* do not aggregate networks */ 323 #define IS_NO_RIPV1_IN 0x0010000 /* no RIPv1 input at all */ 324 #define IS_NO_RIPV2_IN 0x0020000 /* no RIPv2 input at all */ 325 #define IS_NO_RIP_IN (IS_NO_RIPV1_IN | IS_NO_RIPV2_IN) 326 #define IS_RIP_IN_OFF(s) (((s) & IS_NO_RIP_IN) == IS_NO_RIP_IN) 327 #define IS_NO_RIPV1_OUT 0x0040000 /* no RIPv1 output at all */ 328 #define IS_NO_RIPV2_OUT 0x0080000 /* no RIPv2 output at all */ 329 #define IS_NO_RIP_OUT (IS_NO_RIPV1_OUT | IS_NO_RIPV2_OUT) 330 #define IS_NO_RIP (IS_NO_RIP_OUT | IS_NO_RIP_IN) 331 #define IS_RIP_OUT_OFF(s) (((s) & IS_NO_RIP_OUT) == IS_NO_RIP_OUT) 332 #define IS_RIP_OFF(s) (((s) & IS_NO_RIP) == IS_NO_RIP) 333 #define IS_NO_ADV_IN 0x0100000 334 #define IS_NO_SOL_OUT 0x0200000 /* no solicitations */ 335 #define IS_SOL_OUT 0x0400000 /* send solicitations */ 336 #define GROUP_IS_SOL (IS_NO_ADV_IN|IS_NO_SOL_OUT) 337 #define IS_NO_ADV_OUT 0x0800000 /* do not advertise rdisc */ 338 #define IS_ADV_OUT 0x1000000 /* advertise rdisc */ 339 #define GROUP_IS_ADV (IS_NO_ADV_OUT|IS_ADV_OUT) 340 #define IS_BCAST_RDISC 0x2000000 /* broadcast instead of multicast */ 341 #define IS_NO_RDISC (IS_NO_ADV_IN | IS_NO_SOL_OUT | IS_NO_ADV_OUT) 342 #define IS_PM_RDISC 0x4000000 /* poor-man's router discovery */ 343 344 #ifdef sgi 345 #define IFF_UP_RUNNING (IFF_RUNNING|IFF_UP) 346 #else 347 #define IFF_UP_RUNNING IFF_UP 348 #endif 349 #define iff_alive(f) (((f) & IFF_UP_RUNNING) == IFF_UP_RUNNING) 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_PROMOTE 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_PROMOTE_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[IFNAMSIZ+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; 397 int parm_rdisc_int; 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; 405 naddr intnet_mask; 406 char intnet_metric; 407 } *intnets; 408 409 /* trusted routers */ 410 extern struct tgate { 411 struct tgate *tgate_next; 412 naddr tgate_addr; 413 } *tgates; 414 415 enum output_type {OUT_QUERY, OUT_UNICAST, OUT_BROADCAST, OUT_MULTICAST, 416 NO_OUT_MULTICAST, NO_OUT_RIPV2}; 417 418 /* common output buffers */ 419 extern struct ws_buf { 420 struct rip *buf; 421 struct netinfo *n; 422 struct netinfo *base; 423 struct netinfo *lim; 424 enum output_type type; 425 } v12buf, v2buf; 426 427 extern pid_t mypid; 428 extern naddr myaddr; /* main address of this system */ 429 430 extern int stopint; /* !=0 to stop */ 431 432 extern int sock_max; 433 extern int rip_sock; /* RIP socket */ 434 extern struct interface *rip_sock_mcast; /* current multicast interface */ 435 extern int rt_sock; /* routing socket */ 436 extern int rt_sock_seqno; 437 extern int rdisc_sock; /* router-discovery raw socket */ 438 439 extern int seqno; /* sequence number for messages */ 440 extern int supplier; /* process should supply updates */ 441 extern int lookforinterfaces; /* 1=probe for new up interfaces */ 442 extern int supplier_set; /* -s or -q requested */ 443 extern int ridhosts; /* 1=reduce host routes */ 444 extern int mhome; /* 1=want multi-homed host route */ 445 extern int advertise_mhome; /* 1=must continue adverising it */ 446 extern int auth_ok; /* 1=ignore auth if we do not care */ 447 448 extern struct timeval clk; /* system clock's idea of time */ 449 extern struct timeval epoch; /* system clock when started */ 450 extern struct timeval now; /* current idea of time */ 451 extern time_t now_stale; 452 extern time_t now_expire; 453 extern time_t now_garbage; 454 455 extern struct timeval next_bcast; /* next general broadcast */ 456 extern struct timeval age_timer; /* next check of old routes */ 457 extern struct timeval no_flash; /* inhibit flash update until then */ 458 extern struct timeval rdisc_timer; /* next advert. or solicitation */ 459 extern int rdisc_ok; /* using solicited route */ 460 461 extern struct timeval ifinit_timer; /* time to check interfaces */ 462 463 extern naddr loopaddr; /* our address on loopback */ 464 extern int tot_interfaces; /* # of remote and local interfaces */ 465 extern int rip_interfaces; /* # of interfaces doing RIP */ 466 extern struct interface *ifnet; /* all interfaces */ 467 extern struct interface *remote_if; /* remote interfaces */ 468 extern int have_ripv1_out; /* have a RIPv1 interface */ 469 extern int have_ripv1_in; 470 extern int need_flash; /* flash update needed */ 471 extern struct timeval need_kern; /* need to update kernel table */ 472 extern int update_seqno; /* a route has changed */ 473 474 extern int tracelevel, new_tracelevel; 475 #define MAX_TRACELEVEL 4 476 #define TRACEKERNEL (tracelevel >= 4) /* log kernel changes */ 477 #define TRACECONTENTS (tracelevel >= 3) /* display packet contents */ 478 #define TRACEPACKETS (tracelevel >= 2) /* note packets */ 479 #define TRACEACTIONS (tracelevel != 0) 480 extern FILE *ftrace; /* output trace file */ 481 extern char inittracename[MAXPATHLEN+1]; 482 483 extern struct radix_node_head *rhead; 484 485 486 #ifdef sgi 487 /* Fix conflicts */ 488 #define dup2(x,y) BSDdup2(x,y) 489 #endif /* sgi */ 490 491 extern void fix_sock(int, char *); 492 extern void fix_select(void); 493 extern void rip_off(void); 494 extern void rip_on(struct interface *); 495 496 extern void bufinit(void); 497 extern int output(enum output_type, struct sockaddr_in *, 498 struct interface *, struct rip *, int); 499 extern void clr_ws_buf(struct ws_buf *, struct auth *); 500 extern void rip_query(void); 501 extern void rip_bcast(int); 502 extern void supply(struct sockaddr_in *, struct interface *, 503 enum output_type, int, int, int); 504 505 extern void msglog(char *, ...); 506 struct msg_limit { 507 time_t reuse; 508 struct msg_sub { 509 naddr addr; 510 time_t until; 511 # define MSG_SUBJECT_N 8 512 } subs[MSG_SUBJECT_N]; 513 }; 514 extern void msglim(struct msg_limit *, naddr, char *, ...); 515 #define LOGERR(msg) msglog(msg ": %s", strerror(errno)) 516 extern void logbad(int, char *, ...); 517 #define BADERR(dump,msg) logbad(dump,msg ": %s", strerror(errno)) 518 #ifdef DEBUG 519 #define DBGERR(dump,msg) BADERR(dump,msg) 520 #else 521 #define DBGERR(dump,msg) LOGERR(msg) 522 #endif 523 extern char *naddr_ntoa(naddr); 524 extern char *saddr_ntoa(struct sockaddr *); 525 526 extern void *rtmalloc(size_t, char *); 527 extern void timevaladd(struct timeval *, struct timeval *); 528 extern void intvl_random(struct timeval *, u_long, u_long); 529 extern int getnet(char *, naddr *, naddr *); 530 extern int gethost(char *, naddr *); 531 extern void gwkludge(void); 532 extern char *parse_parms(char *, int); 533 extern char *check_parms(struct parm *); 534 extern void get_parms(struct interface *); 535 536 extern void lastlog(void); 537 extern void set_tracefile(char *, char *, int); 538 extern void tracelevel_msg(char *, int); 539 extern void trace_off(char*, ...); 540 extern void set_tracelevel(void); 541 extern void trace_flush(void); 542 extern void trace_kernel(char *, ...); 543 extern void trace_act(char *, ...); 544 extern void trace_pkt(char *, ...); 545 extern void trace_add_del(char *, struct rt_entry *); 546 extern void trace_change(struct rt_entry *, u_int, naddr, naddr, int, 547 u_short, struct interface *, time_t, char *); 548 extern void trace_if(char *, struct interface *); 549 extern void trace_upslot(struct rt_entry *, struct rt_spare *, 550 naddr, naddr, 551 struct interface *, int, u_short, time_t); 552 extern void trace_rip(char*, char*, struct sockaddr_in *, 553 struct interface *, struct rip *, int); 554 extern char *addrname(naddr, naddr, int); 555 extern char *rtname(naddr, naddr, naddr); 556 557 extern void rdisc_age(naddr); 558 extern void set_rdisc_mg(struct interface *, int); 559 extern void set_supplier(void); 560 extern void if_bad_rdisc(struct interface *); 561 extern void if_ok_rdisc(struct interface *); 562 extern void read_rip(int, struct interface *); 563 extern void read_rt(void); 564 extern void read_d(void); 565 extern void rdisc_adv(void); 566 extern void rdisc_sol(void); 567 568 extern void sigalrm(int); 569 extern void sigterm(int); 570 571 extern void sigtrace_on(int); 572 extern void sigtrace_off(int); 573 574 extern void flush_kern(void); 575 extern void age(naddr); 576 577 extern void ag_flush(naddr, naddr, void (*)(struct ag_info *)); 578 extern void ag_check(naddr, naddr, naddr, naddr, char, char, u_int, 579 u_short, u_short, void (*)(struct ag_info *)); 580 extern void del_static(naddr, naddr, int); 581 extern void del_redirects(naddr, time_t); 582 extern struct rt_entry *rtget(naddr, naddr); 583 extern struct rt_entry *rtfind(naddr); 584 extern void rtinit(void); 585 extern void rtadd(naddr, naddr, naddr, naddr, 586 int, u_short, u_int, struct interface *); 587 extern void rtchange(struct rt_entry *, u_int, naddr,naddr, int, u_short, 588 struct interface *ifp, time_t, char *); 589 extern void rtdelete(struct rt_entry *); 590 extern void rts_delete(struct rt_entry *, struct rt_spare *); 591 extern void rtbad_sub(struct rt_entry *); 592 extern void rtswitch(struct rt_entry *, struct rt_spare *); 593 extern void rtbad(struct rt_entry *); 594 595 596 #define S_ADDR(x) (((struct sockaddr_in *)(x))->sin_addr.s_addr) 597 #define INFO_DST(I) ((I)->rti_info[RTAX_DST]) 598 #define INFO_GATE(I) ((I)->rti_info[RTAX_GATEWAY]) 599 #define INFO_MASK(I) ((I)->rti_info[RTAX_NETMASK]) 600 #define INFO_IFA(I) ((I)->rti_info[RTAX_IFA]) 601 #define INFO_IFP(I) ((I)->rti_info[RTAX_IFP]) 602 #define INFO_AUTHOR(I) ((I)->rti_info[RTAX_AUTHOR]) 603 #define INFO_BRD(I) ((I)->rti_info[RTAX_BRD]) 604 void rt_xaddrs(struct rt_addrinfo *, struct sockaddr *, struct sockaddr *, 605 int); 606 607 extern naddr std_mask(naddr); 608 extern naddr ripv1_mask_net(naddr, struct interface *); 609 extern naddr ripv1_mask_host(naddr,struct interface *); 610 #define on_net(a,net,mask) (((ntohl(a) ^ (net)) & (mask)) == 0) 611 extern int check_dst(naddr); 612 extern struct interface *check_dup(naddr, naddr, naddr, int); 613 extern int check_remote(struct interface *); 614 extern int addrouteforif(register struct interface *); 615 extern void ifinit(void); 616 extern int walk_bad(struct radix_node *, struct walkarg *); 617 extern int if_ok(struct interface *, char *); 618 extern void if_sick(struct interface *); 619 extern void if_bad(struct interface *); 620 extern void if_link(struct interface *); 621 extern struct interface *ifwithaddr(naddr, int, int); 622 extern struct interface *ifwithname(char *, naddr); 623 extern struct interface *ifwithindex(u_short, int); 624 extern struct interface *iflookup(naddr); 625 626 extern struct auth *find_auth(struct interface *); 627 extern void end_md5_auth(struct ws_buf *, struct auth *); 628 629 #define MD5_DIGEST_LEN 16 630 typedef struct { 631 u_int32_t state[4]; /* state (ABCD) */ 632 u_int32_t count[2]; /* # of bits, modulo 2^64 (LSB 1st) */ 633 unsigned char buffer[64]; /* input buffer */ 634 } MD5_CTX; 635 extern void MD5Init(MD5_CTX*); 636 extern void MD5Update(MD5_CTX*, u_char*, u_int); 637 extern void MD5Final(u_char[MD5_DIGEST_LEN], MD5_CTX*); 638
Indexes created Thu Oct 16 14:10:15 GMT 2025