defs.h revision 1.13
1 /* $NetBSD: defs.h,v 1.13 2003/05/16 22:59:50 dsl 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 typedef void (*cfunc_t)(void *); 40 typedef void (*ihfunc_t)(int, fd_set *); 41 42 #include "dvmrp.h" 43 #include "vif.h" 44 #include "route.h" 45 #include "prune.h" 46 #include "pathnames.h" 47 #ifdef RSRR 48 #include "rsrr.h" 49 #include "rsrr_var.h" 50 #endif /* RSRR */ 51 52 /* 53 * Miscellaneous constants and macros. 54 */ 55 #define FALSE 0 56 #define TRUE 1 57 58 #define EQUAL(s1, s2) (strcmp((s1), (s2)) == 0) 59 60 #define TIMER_INTERVAL ROUTE_MAX_REPORT_DELAY 61 62 #define VENDOR_CODE 1 /* Get a new vendor code if you make significant 63 * changes to mrouted. */ 64 65 #define PROTOCOL_VERSION 3 /* increment when packet format/content changes */ 66 67 #define MROUTED_VERSION 8 /* increment on local changes or bug fixes, */ 68 /* reset to 0 whever PROTOCOL_VERSION increments */ 69 70 #define MROUTED_LEVEL ((MROUTED_VERSION << 8) | PROTOCOL_VERSION | \ 71 ((NF_PRUNE | NF_GENID | NF_MTRACE) << 16) | \ 72 (VENDOR_CODE << 24)) 73 /* for IGMP 'group' field of DVMRP messages */ 74 75 #define LEAF_FLAGS (( vifs_with_neighbors == 1 ) ? 0x010000 : 0) 76 /* more for IGMP 'group' field of DVMRP messages */ 77 #define DEL_RTE_GROUP 0 78 #define DEL_ALL_ROUTES 1 79 /* for Deleting kernel table entries */ 80 81 /* obnoxious gcc gives an extraneous warning about this constant... */ 82 #define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */ 83 84 #ifdef RSRR 85 #define BIT_ZERO(X) ((X) = 0) 86 #define BIT_SET(X,n) ((X) |= 1 << (n)) 87 #define BIT_CLR(X,n) ((X) &= ~(1 << (n))) 88 #define BIT_TST(X,n) ((X) & 1 << (n)) 89 #endif /* RSRR */ 90 91 #ifdef SYSV 92 #define bcopy(a, b, c) memcpy(b, a, c) 93 #define bzero(s, n) memset((s), 0, (n)) 94 #define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0) 95 #define signal(s,f) sigset(s,f) 96 #endif 97 98 /* 99 * External declarations for global variables and functions. 100 */ 101 #define RECV_BUF_SIZE 8192 102 extern char *recv_buf; 103 extern char *send_buf; 104 extern size_t send_buflen; 105 extern int igmp_socket; 106 #ifdef RSRR 107 extern int rsrr_socket; 108 #endif /* RSRR */ 109 extern u_int32_t allhosts_group; 110 extern u_int32_t allrtrs_group; 111 extern u_int32_t dvmrp_group; 112 extern u_int32_t dvmrp_genid; 113 114 #define DEFAULT_DEBUG 2 /* default if "-d" given without value */ 115 116 extern int debug; 117 extern u_char pruning; 118 119 extern int routes_changed; 120 extern int delay_change_reports; 121 extern unsigned nroutes; 122 123 extern struct uvif uvifs[MAXVIFS]; 124 extern vifi_t numvifs; 125 extern int vifs_down; 126 extern int udp_socket; 127 extern int vifs_with_neighbors; 128 129 #if !(defined(BSD) && (BSD >= 199103)) 130 extern int errno; 131 extern int sys_nerr; 132 extern char * sys_errlist[]; 133 #endif 134 135 #ifdef OLD_KERNEL 136 #define MRT_INIT DVMRP_INIT 137 #define MRT_DONE DVMRP_DONE 138 #define MRT_ADD_VIF DVMRP_ADD_VIF 139 #define MRT_DEL_VIF DVMRP_DEL_VIF 140 #define MRT_ADD_MFC DVMRP_ADD_MFC 141 #define MRT_DEL_MFC DVMRP_DEL_MFC 142 143 #define IGMP_PIM 0x14 144 #endif 145 146 /* main.c */ 147 extern void logit(int, int, const char *, ...) 148 __attribute__((__format__(__printf__, 3, 4))); 149 extern int register_input_handler(int fd, ihfunc_t func); 150 151 /* igmp.c */ 152 extern void init_igmp(void); 153 extern void accept_igmp(int recvlen); 154 extern void send_igmp(u_int32_t src, u_int32_t dst, int type, 155 int code, u_int32_t group, int datalen); 156 157 /* callout.c */ 158 extern void callout_init(void); 159 extern void age_callout_queue(void); 160 extern int timer_setTimer(int delay, cfunc_t action, char *data); 161 extern void timer_clearTimer(int timer_id); 162 163 /* route.c */ 164 extern void init_routes(void); 165 extern void start_route_updates(void); 166 extern void update_route(u_int32_t origin, u_int32_t mask, 167 u_int metric, u_int32_t src, vifi_t vifi); 168 extern void age_routes(void); 169 extern void expire_all_routes(void); 170 extern void free_all_routes(void); 171 extern void accept_probe(u_int32_t src, u_int32_t dst, 172 char *p, int datalen, u_int32_t level); 173 extern void accept_report(u_int32_t src, u_int32_t dst, 174 char *p, int datalen, u_int32_t level); 175 extern struct rtentry * determine_route(u_int32_t src); 176 extern void report(int which_routes, vifi_t vifi, u_int32_t dst); 177 extern void report_to_all_neighbors(int which_routes); 178 extern int report_next_chunk(void); 179 extern void add_vif_to_routes(vifi_t vifi); 180 extern void delete_vif_from_routes(vifi_t vifi); 181 extern void delete_neighbor_from_routes(u_int32_t addr, 182 vifi_t vifi); 183 extern void dump_routes(FILE *fp); 184 extern void start_route_updates(void); 185 186 /* vif.c */ 187 extern void init_vifs(void); 188 extern void check_vif_state(void); 189 extern vifi_t find_vif(u_int32_t src, u_int32_t dst); 190 extern void age_vifs(void); 191 extern void dump_vifs(FILE *fp); 192 extern void stop_all_vifs(void); 193 extern struct listaddr *neighbor_info(vifi_t vifi, u_int32_t addr); 194 extern void accept_group_report(u_int32_t src, u_int32_t dst, 195 u_int32_t group, int r_type); 196 extern void query_groups(void); 197 extern void probe_for_neighbors(void); 198 extern int update_neighbor(vifi_t vifi, u_int32_t addr, 199 int msgtype, char *p, int datalen, 200 u_int32_t level); 201 extern void accept_neighbor_request(u_int32_t src, u_int32_t dst); 202 extern void accept_neighbor_request2(u_int32_t src, u_int32_t dst); 203 extern void accept_neighbors(u_int32_t src, u_int32_t dst, 204 u_char *p, int datalen, 205 u_int32_t level); 206 extern void accept_neighbors2(u_int32_t src, u_int32_t dst, 207 u_char *p, int datalen, 208 u_int32_t level); 209 extern void accept_leave_message(u_int32_t src, u_int32_t dst, 210 u_int32_t group); 211 extern void accept_membership_query(u_int32_t src, u_int32_t dst, 212 u_int32_t group, int tmo); 213 214 /* config.c */ 215 extern void config_vifs_from_kernel(void); 216 217 /* cfparse.y */ 218 extern void config_vifs_from_file(void); 219 220 /* inet.c */ 221 extern int inet_valid_host(u_int32_t naddr); 222 extern int inet_valid_mask(u_int32_t mask); 223 extern int inet_valid_subnet(u_int32_t nsubnet, u_int32_t nmask); 224 extern char * inet_fmt(u_int32_t addr); 225 extern char * inet_fmts(u_int32_t addr, u_int32_t mask); 226 extern u_int32_t inet_parse(char *s, int *); 227 extern int inet_cksum(u_short *addr, u_int len); 228 229 /* prune.c */ 230 extern unsigned kroutes; 231 extern void add_table_entry(u_int32_t origin, u_int32_t mcastgrp); 232 extern void del_table_entry(struct rtentry *r, 233 u_int32_t mcastgrp, u_int del_flag); 234 extern void update_table_entry(struct rtentry *r); 235 extern void init_ktable(void); 236 extern void accept_prune(u_int32_t src, u_int32_t dst, char *p, 237 int datalen); 238 extern void steal_sources(struct rtentry *rt); 239 extern void reset_neighbor_state(vifi_t vifi, u_int32_t addr); 240 extern int grplst_mem(vifi_t vifi, u_int32_t mcastgrp); 241 extern int scoped_addr(vifi_t vifi, u_int32_t addr); 242 extern void free_all_prunes(void); 243 extern void age_table_entry(void); 244 extern void dump_cache(FILE *fp2); 245 extern void update_lclgrp(vifi_t vifi, u_int32_t mcastgrp); 246 extern void delete_lclgrp(vifi_t vifi, u_int32_t mcastgrp); 247 extern void chkgrp_graft(vifi_t vifi, u_int32_t mcastgrp); 248 extern void accept_graft(u_int32_t src, u_int32_t dst, char *p, 249 int datalen); 250 extern void accept_g_ack(u_int32_t src, u_int32_t dst, char *p, 251 int datalen); 252 /* u_int is promoted u_char */ 253 extern void accept_mtrace(u_int32_t src, u_int32_t dst, 254 u_int32_t group, char *data, u_int no, 255 int datalen); 256 extern int find_src_grp(u_int32_t, u_int32_t, u_int32_t); 257 258 /* kern.c */ 259 extern void k_set_rcvbuf(int bufsize); 260 extern void k_hdr_include(int bool); 261 extern void k_set_ttl(int t); 262 extern void k_set_loop(int l); 263 extern void k_set_if(u_int32_t ifa); 264 extern void k_join(u_int32_t grp, u_int32_t ifa); 265 extern void k_leave(u_int32_t grp, u_int32_t ifa); 266 extern void k_init_dvmrp(void); 267 extern void k_stop_dvmrp(void); 268 extern void k_add_vif(vifi_t vifi, struct uvif *v); 269 extern void k_del_vif(vifi_t vifi); 270 extern void k_add_rg(u_int32_t origin, struct gtable *g); 271 extern int k_del_rg(u_int32_t origin, struct gtable *g); 272 extern int k_get_version(void); 273 274 #ifdef SNMP 275 /* prune.c */ 276 extern struct rtentry * snmp_find_route(); 277 extern struct gtable * find_grp(); 278 extern struct stable * find_grp_src(); 279 #endif 280 281 #ifdef RSRR 282 /* prune.c */ 283 extern struct gtable *kernel_table; 284 extern struct gtable *gtp; 285 extern int find_src_grp(u_int32_t src, u_int32_t mask, 286 u_int32_t grp); 287 288 /* rsrr.c */ 289 extern void rsrr_init(void); 290 extern void rsrr_read(int f, fd_set *rfd); 291 extern void rsrr_clean(void); 292 extern void rsrr_cache_send(struct gtable *gt, int notify); 293 extern void rsrr_cache_clean(struct gtable *gt); 294 #endif /* RSRR */ 295 296 /* vif.c */ 297 extern void accept_info_reply(u_int32_t, u_int32_t, u_char *, int); 298 extern void accept_info_request(u_int32_t, u_int32_t, 299 u_char *, int); 300 extern void init_installvifs(void); 301
Indexes created Wed Sep 24 05:09:52 GMT 2025