defs.h revision 1.7
1 /* $NetBSD: defs.h,v 1.7 1997/10/17 10:38:03 lukem Exp $ */ 2 3 /* 4 * The mrouted program is covered by the license in the accompanying file 5 * named "LICENSE". Use of the mrouted program represents acceptance of 6 * the terms and conditions listed in that file. 7 * 8 * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of 9 * Leland Stanford Junior University. 10 */ 11 12 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <unistd.h> 16 #include <ctype.h> 17 #include <errno.h> 18 #include <syslog.h> 19 #include <signal.h> 20 #include <string.h> 21 #include <sys/param.h> 22 #include <sys/types.h> 23 #include <sys/socket.h> 24 #include <sys/ioctl.h> 25 #ifdef SYSV 26 #include <sys/sockio.h> 27 #endif 28 #include <sys/time.h> 29 #include <net/if.h> 30 #include <netinet/in.h> 31 #include <netinet/in_systm.h> 32 #include <netinet/ip.h> 33 #include <netinet/igmp.h> 34 #include <netinet/ip_mroute.h> 35 #ifdef RSRR 36 #include <sys/un.h> 37 #endif /* RSRR */ 38 39 #ifndef __P 40 #ifdef __STDC__ 41 #define __P(x) x 42 #else 43 #define __P(x) () 44 #endif 45 #endif 46 47 typedef void (*cfunc_t) __P((void *)); 48 typedef void (*ihfunc_t) __P((int, fd_set *)); 49 50 #include "dvmrp.h" 51 #include "vif.h" 52 #include "route.h" 53 #include "prune.h" 54 #include "pathnames.h" 55 #ifdef RSRR 56 #include "rsrr.h" 57 #include "rsrr_var.h" 58 #endif /* RSRR */ 59 60 /* 61 * Miscellaneous constants and macros. 62 */ 63 #define FALSE 0 64 #define TRUE 1 65 66 #define EQUAL(s1, s2) (strcmp((s1), (s2)) == 0) 67 68 #define TIMER_INTERVAL ROUTE_MAX_REPORT_DELAY 69 70 #define VENDOR_CODE 1 /* Get a new vendor code if you make significant 71 * changes to mrouted. */ 72 73 #define PROTOCOL_VERSION 3 /* increment when packet format/content changes */ 74 75 #define MROUTED_VERSION 8 /* increment on local changes or bug fixes, */ 76 /* reset to 0 whever PROTOCOL_VERSION increments */ 77 78 #define MROUTED_LEVEL ((MROUTED_VERSION << 8) | PROTOCOL_VERSION | \ 79 ((NF_PRUNE | NF_GENID | NF_MTRACE) << 16) | \ 80 (VENDOR_CODE << 24)) 81 /* for IGMP 'group' field of DVMRP messages */ 82 83 #define LEAF_FLAGS (( vifs_with_neighbors == 1 ) ? 0x010000 : 0) 84 /* more for IGMP 'group' field of DVMRP messages */ 85 #define DEL_RTE_GROUP 0 86 #define DEL_ALL_ROUTES 1 87 /* for Deleting kernel table entries */ 88 89 /* obnoxious gcc gives an extraneous warning about this constant... */ 90 #if defined(__STDC__) || defined(__GNUC__) 91 #define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */ 92 #else 93 #define JAN_1970 2208988800L /* 1970 - 1900 in seconds */ 94 #define const /**/ 95 #endif 96 97 #ifdef RSRR 98 #define BIT_ZERO(X) ((X) = 0) 99 #define BIT_SET(X,n) ((X) |= 1 << (n)) 100 #define BIT_CLR(X,n) ((X) &= ~(1 << (n))) 101 #define BIT_TST(X,n) ((X) & 1 << (n)) 102 #endif /* RSRR */ 103 104 #ifdef SYSV 105 #define bcopy(a, b, c) memcpy(b, a, c) 106 #define bzero(s, n) memset((s), 0, (n)) 107 #define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0) 108 #define signal(s,f) sigset(s,f) 109 #endif 110 111 /* 112 * External declarations for global variables and functions. 113 */ 114 #define RECV_BUF_SIZE 8192 115 extern char *recv_buf; 116 extern char *send_buf; 117 extern int igmp_socket; 118 #ifdef RSRR 119 extern int rsrr_socket; 120 #endif /* RSRR */ 121 extern u_int32_t allhosts_group; 122 extern u_int32_t allrtrs_group; 123 extern u_int32_t dvmrp_group; 124 extern u_int32_t dvmrp_genid; 125 126 #define DEFAULT_DEBUG 2 /* default if "-d" given without value */ 127 128 extern int debug; 129 extern u_char pruning; 130 131 extern int routes_changed; 132 extern int delay_change_reports; 133 extern unsigned nroutes; 134 135 extern struct uvif uvifs[MAXVIFS]; 136 extern vifi_t numvifs; 137 extern int vifs_down; 138 extern int udp_socket; 139 extern int vifs_with_neighbors; 140 141 extern char s1[]; 142 extern char s2[]; 143 extern char s3[]; 144 extern char s4[]; 145 146 #if !(defined(BSD) && (BSD >= 199103)) 147 extern int errno; 148 extern int sys_nerr; 149 extern char * sys_errlist[]; 150 #endif 151 152 #ifdef OLD_KERNEL 153 #define MRT_INIT DVMRP_INIT 154 #define MRT_DONE DVMRP_DONE 155 #define MRT_ADD_VIF DVMRP_ADD_VIF 156 #define MRT_DEL_VIF DVMRP_DEL_VIF 157 #define MRT_ADD_MFC DVMRP_ADD_MFC 158 #define MRT_DEL_MFC DVMRP_DEL_MFC 159 160 #define IGMP_PIM 0x14 161 #endif 162 163 /* main.c */ 164 extern void log __P((int, int, char *, ...)); 165 extern int register_input_handler __P((int fd, ihfunc_t func)); 166 167 /* igmp.c */ 168 extern void init_igmp __P((void)); 169 extern void accept_igmp __P((int recvlen)); 170 extern void send_igmp __P((u_int32_t src, u_int32_t dst, int type, 171 int code, u_int32_t group, 172 int datalen)); 173 174 /* callout.c */ 175 extern void callout_init __P((void)); 176 extern void age_callout_queue __P((void)); 177 extern int timer_setTimer __P((int delay, cfunc_t action, 178 char *data)); 179 extern void timer_clearTimer __P((int timer_id)); 180 181 /* route.c */ 182 extern void init_routes __P((void)); 183 extern void start_route_updates __P((void)); 184 extern void update_route __P((u_int32_t origin, u_int32_t mask, 185 u_int metric, u_int32_t src, 186 vifi_t vifi)); 187 extern void age_routes __P((void)); 188 extern void expire_all_routes __P((void)); 189 extern void free_all_routes __P((void)); 190 extern void accept_probe __P((u_int32_t src, u_int32_t dst, 191 char *p, int datalen, 192 u_int32_t level)); 193 extern void accept_report __P((u_int32_t src, u_int32_t dst, 194 char *p, int datalen, 195 u_int32_t level)); 196 extern struct rtentry * determine_route __P((u_int32_t src)); 197 extern void report __P((int which_routes, vifi_t vifi, 198 u_int32_t dst)); 199 extern void report_to_all_neighbors __P((int which_routes)); 200 extern int report_next_chunk __P((void)); 201 extern void add_vif_to_routes __P((vifi_t vifi)); 202 extern void delete_vif_from_routes __P((vifi_t vifi)); 203 extern void delete_neighbor_from_routes __P((u_int32_t addr, 204 vifi_t vifi)); 205 extern void dump_routes __P((FILE *fp)); 206 extern void start_route_updates __P((void)); 207 208 /* vif.c */ 209 extern void init_vifs __P((void)); 210 extern void check_vif_state __P((void)); 211 extern vifi_t find_vif __P((u_int32_t src, u_int32_t dst)); 212 extern void age_vifs __P((void)); 213 extern void dump_vifs __P((FILE *fp)); 214 extern void stop_all_vifs __P((void)); 215 extern struct listaddr *neighbor_info __P((vifi_t vifi, u_int32_t addr)); 216 extern void accept_group_report __P((u_int32_t src, u_int32_t dst, 217 u_int32_t group, int r_type)); 218 extern void query_groups __P((void)); 219 extern void probe_for_neighbors __P((void)); 220 extern int update_neighbor __P((vifi_t vifi, u_int32_t addr, 221 int msgtype, char *p, int datalen, 222 u_int32_t level)); 223 extern void accept_neighbor_request __P((u_int32_t src, u_int32_t dst)); 224 extern void accept_neighbor_request2 __P((u_int32_t src, 225 u_int32_t dst)); 226 extern void accept_neighbors __P((u_int32_t src, u_int32_t dst, 227 u_char *p, int datalen, u_int32_t level)); 228 extern void accept_neighbors2 __P((u_int32_t src, u_int32_t dst, 229 u_char *p, int datalen, u_int32_t level)); 230 extern void accept_leave_message __P((u_int32_t src, u_int32_t dst, 231 u_int32_t group)); 232 extern void accept_membership_query __P((u_int32_t src, u_int32_t dst, 233 u_int32_t group, int tmo)); 234 235 /* config.c */ 236 extern void config_vifs_from_kernel __P((void)); 237 238 /* cfparse.y */ 239 extern void config_vifs_from_file __P((void)); 240 241 /* inet.c */ 242 extern int inet_valid_host __P((u_int32_t naddr)); 243 extern int inet_valid_mask __P((u_int32_t mask)); 244 extern int inet_valid_subnet __P((u_int32_t nsubnet, u_int32_t nmask)); 245 extern char * inet_fmt __P((u_int32_t addr, char *s)); 246 extern char * inet_fmts __P((u_int32_t addr, u_int32_t mask, char *s)); 247 extern u_int32_t inet_parse __P((char *s)); 248 extern int inet_cksum __P((u_short *addr, u_int len)); 249 250 /* prune.c */ 251 extern unsigned kroutes; 252 extern void add_table_entry __P((u_int32_t origin, u_int32_t mcastgrp)); 253 extern void del_table_entry __P((struct rtentry *r, 254 u_int32_t mcastgrp, u_int del_flag)); 255 extern void update_table_entry __P((struct rtentry *r)); 256 extern void init_ktable __P((void)); 257 extern void accept_prune __P((u_int32_t src, u_int32_t dst, char *p, 258 int datalen)); 259 extern void steal_sources __P((struct rtentry *rt)); 260 extern void reset_neighbor_state __P((vifi_t vifi, u_int32_t addr)); 261 extern int grplst_mem __P((vifi_t vifi, u_int32_t mcastgrp)); 262 extern int scoped_addr __P((vifi_t vifi, u_int32_t addr)); 263 extern void free_all_prunes __P((void)); 264 extern void age_table_entry __P((void)); 265 extern void dump_cache __P((FILE *fp2)); 266 extern void update_lclgrp __P((vifi_t vifi, u_int32_t mcastgrp)); 267 extern void delete_lclgrp __P((vifi_t vifi, u_int32_t mcastgrp)); 268 extern void chkgrp_graft __P((vifi_t vifi, u_int32_t mcastgrp)); 269 extern void accept_graft __P((u_int32_t src, u_int32_t dst, char *p, 270 int datalen)); 271 extern void accept_g_ack __P((u_int32_t src, u_int32_t dst, char *p, 272 int datalen)); 273 /* u_int is promoted u_char */ 274 extern void accept_mtrace __P((u_int32_t src, u_int32_t dst, 275 u_int32_t group, char *data, u_int no, 276 int datalen)); 277 extern int find_src_grp __P((u_int32_t, u_int32_t, u_int32_t)); 278 279 /* kern.c */ 280 extern void k_set_rcvbuf __P((int bufsize)); 281 extern void k_hdr_include __P((int bool)); 282 extern void k_set_ttl __P((int t)); 283 extern void k_set_loop __P((int l)); 284 extern void k_set_if __P((u_int32_t ifa)); 285 extern void k_join __P((u_int32_t grp, u_int32_t ifa)); 286 extern void k_leave __P((u_int32_t grp, u_int32_t ifa)); 287 extern void k_init_dvmrp __P((void)); 288 extern void k_stop_dvmrp __P((void)); 289 extern void k_add_vif __P((vifi_t vifi, struct uvif *v)); 290 extern void k_del_vif __P((vifi_t vifi)); 291 extern void k_add_rg __P((u_int32_t origin, struct gtable *g)); 292 extern int k_del_rg __P((u_int32_t origin, struct gtable *g)); 293 extern int k_get_version __P((void)); 294 295 #ifdef SNMP 296 /* prune.c */ 297 extern struct rtentry * snmp_find_route __P(()); 298 extern struct gtable * find_grp __P(()); 299 extern struct stable * find_grp_src __P(()); 300 #endif 301 302 #ifdef RSRR 303 /* prune.c */ 304 extern struct gtable *kernel_table; 305 extern struct gtable *gtp; 306 extern int find_src_grp __P((u_int32_t src, u_int32_t mask, 307 u_int32_t grp)); 308 309 /* rsrr.c */ 310 extern void rsrr_init __P((void)); 311 extern void rsrr_read __P((int f, fd_set *rfd)); 312 extern void rsrr_clean __P((void)); 313 extern void rsrr_cache_send __P((struct gtable *gt, int notify)); 314 extern void rsrr_cache_clean __P((struct gtable *gt)); 315 #endif /* RSRR */ 316 317 /* vif.c */ 318 extern void accept_info_reply __P((u_int32_t, u_int32_t, 319 u_char *, int)); 320 extern void accept_info_request __P((u_int32_t, u_int32_t, 321 u_char *, int)); 322 extern void init_installvifs __P((void)); 323
Indexes created Thu Sep 25 02:09:54 GMT 2025