1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
|
/*
* The mrouted program is covered by the license in the accompanying file
* named "LICENSE". Use of the mrouted program represents acceptance of
* the terms and conditions listed in that file.
*
* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
* Leland Stanford Junior University.
*
*
* $Id: defs.h,v 1.10 1997/02/22 16:06:51 peter Exp $
* defs.h,v 3.8.4.15 1998/03/01 02:51:42 fenner Exp
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <errno.h>
#include <syslog.h>
#include <signal.h>
#include <string.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#ifdef SYSV
#include <sys/sockio.h>
#endif
#ifdef _AIX
#include <time.h>
#endif
#include <sys/time.h>
#include <sys/uio.h>
#include <net/if.h>
#define rtentry kern_rtentry /* XXX !!! UGH */
#include <net/route.h>
#undef rtentry
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/igmp.h>
#ifdef __FreeBSD__ /* sigh */
#include <osreldate.h>
#if __FreeBSD_version >= 220000
#define rtentry kernel_rtentry
#include <net/route.h>
#undef rtentry
#endif
#endif
#include <netinet/ip_mroute.h>
#ifdef RSRR
#include <sys/un.h>
#endif /* RSRR */
/*XXX*/
typedef u_int u_int32;
#ifndef __P
#ifdef __STDC__
#define __P(x) x
#else
#define __P(x) ()
#endif
#endif
typedef void (*cfunc_t) __P((void *));
typedef void (*ihfunc_t) __P((int, fd_set *));
#include "dvmrp.h"
#include "igmpv2.h"
#include "vif.h"
#include "route.h"
#include "prune.h"
#include "pathnames.h"
#ifdef RSRR
#include "rsrr.h"
#include "rsrr_var.h"
#endif /* RSRR */
/*
* Miscellaneous constants and macros.
*/
#define FALSE 0
#define TRUE 1
#define EQUAL(s1, s2) (strcmp((s1), (s2)) == 0)
#define TIMER_INTERVAL ROUTE_MAX_REPORT_DELAY
#define PROTOCOL_VERSION 3 /* increment when packet format/content changes */
#define MROUTED_VERSION 9 /* not in DVMRP packets at all */
#define DVMRP_CONSTANT 0x000eff00 /* constant portion of 'group' field */
#define MROUTED_LEVEL (DVMRP_CONSTANT | PROTOCOL_VERSION)
/* for IGMP 'group' field of DVMRP messages */
#define LEAF_FLAGS (( vifs_with_neighbors == 1 ) ? 0x010000 : 0)
/* more for IGMP 'group' field of DVMRP messages */
#define DEL_RTE_GROUP 0
#define DEL_ALL_ROUTES 1
/* for Deleting kernel table entries */
/* obnoxious gcc gives an extraneous warning about this constant... */
#if defined(__STDC__) || defined(__GNUC__)
#define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */
#else
#define JAN_1970 2208988800L /* 1970 - 1900 in seconds */
#define const /**/
#endif
#ifdef RSRR
#define BIT_ZERO(X) ((X) = 0)
#define BIT_SET(X,n) ((X) |= 1 << (n))
#define BIT_CLR(X,n) ((X) &= ~(1 << (n)))
#define BIT_TST(X,n) ((X) & 1 << (n))
#endif /* RSRR */
#ifdef SYSV
#define bcopy(a, b, c) memcpy(b, a, c)
#define bzero(s, n) memset((s), 0, (n))
#define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0)
#endif
#if defined(_AIX) || (defined(BSD) && (BSD >= 199103))
#define HAVE_SA_LEN
#endif
/*
* External declarations for global variables and functions.
*/
#define RECV_BUF_SIZE 8192
extern char *recv_buf;
extern char *send_buf;
extern int igmp_socket;
#ifdef RSRR
extern int rsrr_socket;
#endif /* RSRR */
extern u_int32 allhosts_group;
extern u_int32 allrtrs_group;
extern u_int32 dvmrp_group;
extern u_int32 dvmrp_genid;
#define IF_DEBUG(l) if (debug && debug & (l))
#define DEBUG_PKT 0x0001
#define DEBUG_PRUNE 0x0002
#define DEBUG_ROUTE 0x0004
#define DEBUG_PEER 0x0008
#define DEBUG_CACHE 0x0010
#define DEBUG_TIMEOUT 0x0020
#define DEBUG_IF 0x0040
#define DEBUG_MEMBER 0x0080
#define DEBUG_TRACE 0x0100
#define DEBUG_IGMP 0x0200
#define DEBUG_RTDETAIL 0x0400
#define DEBUG_KERN 0x0800
#define DEBUG_RSRR 0x1000
#define DEBUG_ICMP 0x2000
#define DEFAULT_DEBUG 0x02de /* default if "-d" given without value */
extern int debug;
extern int did_final_init;
extern int routes_changed;
extern int delay_change_reports;
extern unsigned nroutes;
extern struct uvif uvifs[MAXVIFS];
extern vifi_t numvifs;
extern int vifs_down;
extern int udp_socket;
extern int vifs_with_neighbors;
extern char s1[];
extern char s2[];
extern char s3[];
extern char s4[];
#if !(defined(BSD) && (BSD >= 199103))
extern int errno;
extern int sys_nerr;
extern char * sys_errlist[];
#endif
#ifdef OLD_KERNEL
#define MRT_INIT DVMRP_INIT
#define MRT_DONE DVMRP_DONE
#define MRT_ADD_VIF DVMRP_ADD_VIF
#define MRT_DEL_VIF DVMRP_DEL_VIF
#define MRT_ADD_MFC DVMRP_ADD_MFC
#define MRT_DEL_MFC DVMRP_DEL_MFC
#endif
#ifndef IGMP_PIM
#define IGMP_PIM 0x14
#endif
#ifndef IPPROTO_IPIP
#define IPPROTO_IPIP 4
#endif
/*
* The original multicast releases defined
* IGMP_HOST_{MEMBERSHIP_QUERY,MEMBERSHIP_REPORT,NEW_MEMBERSHIP_REPORT
* ,LEAVE_MESSAGE}. Later releases removed the HOST and inserted
* the IGMP version number. NetBSD inserted the version number in
* a different way. mrouted uses the new names, so we #define them
* to the old ones if needed.
*/
#if !defined(IGMP_MEMBERSHIP_QUERY) && defined(IGMP_HOST_MEMBERSHIP_QUERY)
#define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY
#define IGMP_V2_LEAVE_GROUP IGMP_HOST_LEAVE_MESSAGE
#endif
#ifndef IGMP_V1_MEMBERSHIP_REPORT
#ifdef IGMP_HOST_MEMBERSHIP_REPORT
#define IGMP_V1_MEMBERSHIP_REPORT IGMP_HOST_MEMBERSHIP_REPORT
#define IGMP_V2_MEMBERSHIP_REPORT IGMP_HOST_NEW_MEMBERSHIP_REPORT
#endif
#ifdef IGMP_v1_HOST_MEMBERSHIP_REPORT
#define IGMP_V1_MEMBERSHIP_REPORT IGMP_v1_HOST_MEMBERSHIP_REPORT
#define IGMP_V2_MEMBERSHIP_REPORT IGMP_v2_HOST_MEMBERSHIP_REPORT
#endif
#endif
/*
* NetBSD also renamed the mtrace types.
*/
#if !defined(IGMP_MTRACE_RESP) && defined(IGMP_MTRACE_REPLY)
#define IGMP_MTRACE_RESP IGMP_MTRACE_REPLY
#define IGMP_MTRACE IGMP_MTRACE_QUERY
#endif
/* main.c */
extern char * scaletime __P((u_long));
extern void log __P((int, int, char *, ...));
extern int register_input_handler __P((int, ihfunc_t));
/* igmp.c */
extern void init_igmp __P((void));
extern void accept_igmp __P((int));
extern void build_igmp __P((u_int32, u_int32, int, int, u_int32,
int));
extern void send_igmp __P((u_int32, u_int32, int, int, u_int32,
int));
extern char * igmp_packet_kind __P((u_int, u_int));
extern int igmp_debug_kind __P((u_int, u_int));
/* icmp.c */
extern void init_icmp __P((void));
/* ipip.c */
extern void init_ipip __P((void));
extern void init_ipip_on_vif __P((struct uvif *));
extern void send_ipip __P((u_int32, u_int32, int, int, u_int32,
int, struct uvif *));
/* callout.c */
extern void callout_init __P((void));
extern void free_all_callouts __P((void));
extern void age_callout_queue __P((int));
extern int timer_nextTimer __P((void));
extern int timer_setTimer __P((int, cfunc_t, void *));
extern int timer_clearTimer __P((int));
extern int timer_leftTimer __P((int));
/* route.c */
extern void init_routes __P((void));
extern void start_route_updates __P((void));
extern void update_route __P((u_int32, u_int32, u_int, u_int32,
vifi_t, struct listaddr *));
extern void age_routes __P((void));
extern void expire_all_routes __P((void));
extern void free_all_routes __P((void));
extern void accept_probe __P((u_int32, u_int32, char *, int,
u_int32));
extern void accept_report __P((u_int32, u_int32, char *, int,
u_int32));
extern struct rtentry * determine_route __P((u_int32 src));
extern void report __P((int, vifi_t, u_int32));
extern void report_to_all_neighbors __P((int));
extern int report_next_chunk __P((void));
extern void blaster_alloc __P((vifi_t));
extern void add_vif_to_routes __P((vifi_t));
extern void delete_vif_from_routes __P((vifi_t));
extern void add_neighbor_to_routes __P((vifi_t, int));
extern void delete_neighbor_from_routes __P((u_int32,
vifi_t, int));
extern void dump_routes __P((FILE *fp));
/* vif.c */
extern void init_vifs __P((void));
extern void zero_vif __P((struct uvif *, int));
extern void init_installvifs __P((void));
extern void check_vif_state __P((void));
extern void send_on_vif __P((struct uvif *, u_int32, int, int));
extern vifi_t find_vif __P((u_int32, u_int32));
extern void age_vifs __P((void));
extern void dump_vifs __P((FILE *));
extern void stop_all_vifs __P((void));
extern struct listaddr *neighbor_info __P((vifi_t, u_int32));
extern void accept_group_report __P((u_int32, u_int32,
u_int32, int));
extern void query_groups __P((void));
extern void probe_for_neighbors __P((void));
extern struct listaddr *update_neighbor __P((vifi_t, u_int32, int, char *, int,
u_int32));
extern void accept_neighbor_request __P((u_int32, u_int32));
extern void accept_neighbor_request2 __P((u_int32, u_int32));
extern void accept_info_request __P((u_int32, u_int32,
u_char *, int));
extern void accept_info_reply __P((u_int32, u_int32,
u_char *, int));
extern void accept_neighbors __P((u_int32, u_int32,
u_char *, int, u_int32));
extern void accept_neighbors2 __P((u_int32, u_int32,
u_char *, int, u_int32));
extern void accept_leave_message __P((u_int32, u_int32,
u_int32));
extern void accept_membership_query __P((u_int32, u_int32,
u_int32, int));
/* config.c */
extern void config_vifs_from_kernel __P((void));
/* cfparse.y */
extern void config_vifs_from_file __P((void));
/* inet.c */
extern int inet_valid_host __P((u_int32));
extern int inet_valid_mask __P((u_int32));
extern int inet_valid_subnet __P((u_int32, u_int32));
extern char * inet_fmt __P((u_int32, char *));
extern char * inet_fmts __P((u_int32, u_int32, char *));
extern u_int32 inet_parse __P((char *, int));
extern int inet_cksum __P((u_short *, u_int));
/* prune.c */
extern unsigned kroutes;
extern void determine_forwvifs __P((struct gtable *));
extern void send_prune_or_graft __P((struct gtable *));
extern void add_table_entry __P((u_int32, u_int32));
extern void del_table_entry __P((struct rtentry *,
u_int32, u_int));
extern void update_table_entry __P((struct rtentry *, u_int32));
extern int find_src_grp __P((u_int32, u_int32, u_int32));
extern void init_ktable __P((void));
extern void steal_sources __P((struct rtentry *));
extern void reset_neighbor_state __P((vifi_t, u_int32));
extern int grplst_mem __P((vifi_t, u_int32));
extern void free_all_prunes __P((void));
extern void age_table_entry __P((void));
extern void dump_cache __P((FILE *));
extern void update_lclgrp __P((vifi_t, u_int32));
extern void delete_lclgrp __P((vifi_t, u_int32));
extern void chkgrp_graft __P((vifi_t, u_int32));
extern void accept_prune __P((u_int32, u_int32, char *, int));
extern void accept_graft __P((u_int32, u_int32, char *, int));
extern void accept_g_ack __P((u_int32, u_int32, char *, int));
/* u_int is promoted u_char */
extern void accept_mtrace __P((u_int32, u_int32,
u_int32, char *, u_int, int));
/* kern.c */
extern void k_set_rcvbuf __P((int, int));
extern void k_hdr_include __P((int));
extern void k_set_ttl __P((int));
extern void k_set_loop __P((int));
extern void k_set_if __P((u_int32));
extern void k_join __P((u_int32, u_int32));
extern void k_leave __P((u_int32, u_int32));
extern void k_init_dvmrp __P((void));
extern void k_stop_dvmrp __P((void));
extern void k_add_vif __P((vifi_t, struct uvif *));
extern void k_del_vif __P((vifi_t));
extern void k_add_rg __P((u_int32, struct gtable *));
extern int k_del_rg __P((u_int32, struct gtable *));
extern int k_get_version __P((void));
#ifdef SNMP
/* prune.c */
extern struct gtable * find_grp __P((u_int32));
extern struct stable * find_grp_src __P((struct gtable *, u_int32));
extern int next_grp_src_mask __P((struct gtable **,
struct stable **, u_int32,
u_int32, u_int32));
extern void refresh_sg __P((struct sioc_sg_req *, struct gtable *,
struct stable *));
extern int next_child __P((struct gtable **, struct stable **,
u_int32, u_int32, u_int32,
vifi_t *));
/* route.c */
extern struct rtentry * snmp_find_route __P((u_int32, u_int32));
extern int next_route __P((struct rtentry **, u_int32, u_int32));
extern int next_route_child __P((struct rtentry **,
u_int32, u_int32, vifi_t *));
#endif
#ifdef RSRR
/* prune.c */
extern struct gtable *kernel_table;
extern struct gtable *gtp;
/* rsrr.c */
extern void rsrr_init __P((void));
extern void rsrr_clean __P((void));
extern void rsrr_cache_send __P((struct gtable *, int));
extern void rsrr_cache_clean __P((struct gtable *));
#endif /* RSRR */
|
