defs.h revision 1.11
1 /* $NetBSD: defs.h,v 1.11 2003/03/05 21:05:38 wiz 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 int igmp_socket; 105 #ifdef RSRR 106 extern int rsrr_socket; 107 #endif /* RSRR */ 108 extern u_int32_t allhosts_group; 109 extern u_int32_t allrtrs_group; 110 extern u_int32_t dvmrp_group; 111 extern u_int32_t dvmrp_genid; 112 113 #define DEFAULT_DEBUG 2 /* default if "-d" given without value */ 114 115 extern int debug; 116 extern u_char pruning; 117 118 extern int routes_changed; 119 extern int delay_change_reports; 120 extern unsigned nroutes; 121 122 extern struct uvif uvifs[MAXVIFS]; 123 extern vifi_t numvifs; 124 extern int vifs_down; 125 extern int udp_socket; 126 extern int vifs_with_neighbors; 127 128 extern char s1[]; 129 extern char s2[]; 130 extern char s3[]; 131 extern char s4[]; 132 133 #if !(defined(BSD) && (BSD >= 199103)) 134 extern int errno; 135 extern int sys_nerr; 136 extern char * sys_errlist[]; 137 #endif 138 139 #ifdef OLD_KERNEL 140 #define MRT_INIT DVMRP_INIT 141 #define MRT_DONE DVMRP_DONE 142 #define MRT_ADD_VIF DVMRP_ADD_VIF 143 #define MRT_DEL_VIF DVMRP_DEL_VIF 144 #define MRT_ADD_MFC DVMRP_ADD_MFC 145 #define MRT_DEL_MFC DVMRP_DEL_MFC 146 147 #define IGMP_PIM 0x14 148 #endif 149 150 /* main.c */ 151 extern void logit(int, int, const char *, ...) 152 __attribute__((__format__(__printf__, 3, 4))); 153 extern int register_input_handler(int fd, ihfunc_t func); 154 155 /* igmp.c */ 156 extern void init_igmp(void); 157 extern void accept_igmp(int recvlen); 158 extern void send_igmp(u_int32_t src, u_int32_t dst, int type, 159 int code, u_int32_t group, int datalen); 160 161 /* callout.c */ 162 extern void callout_init(void); 163 extern void age_callout_queue(void); 164 extern int timer_setTimer(int delay, cfunc_t action, char *data); 165 extern void timer_clearTimer(int timer_id); 166 167 /* route.c */ 168 extern void init_routes(void); 169 extern void start_route_updates(void); 170 extern void update_route(u_int32_t origin, u_int32_t mask, 171 u_int metric, u_int32_t src, vifi_t vifi); 172 extern void age_routes(void); 173 extern void expire_all_routes(void); 174 extern void free_all_routes(void); 175 extern void accept_probe(u_int32_t src, u_int32_t dst, 176 char *p, int datalen, u_int32_t level); 177 extern void accept_report(u_int32_t src, u_int32_t dst, 178 char *p, int datalen, u_int32_t level); 179 extern struct rtentry * determine_route(u_int32_t src); 180 extern void report(int which_routes, vifi_t vifi, u_int32_t dst); 181 extern void report_to_all_neighbors(int which_routes); 182 extern int report_next_chunk(void); 183 extern void add_vif_to_routes(vifi_t vifi); 184 extern void delete_vif_from_routes(vifi_t vifi); 185 extern void delete_neighbor_from_routes(u_int32_t addr, 186 vifi_t vifi); 187 extern void dump_routes(FILE *fp); 188 extern void start_route_updates(void); 189 190 /* vif.c */ 191 extern void init_vifs(void); 192 extern void check_vif_state(void); 193 extern vifi_t find_vif(u_int32_t src, u_int32_t dst); 194 extern void age_vifs(void); 195 extern void dump_vifs(FILE *fp); 196 extern void stop_all_vifs(void); 197 extern struct listaddr *neighbor_info(vifi_t vifi, u_int32_t addr); 198 extern void accept_group_report(u_int32_t src, u_int32_t dst, 199 u_int32_t group, int r_type); 200 extern void query_groups(void); 201 extern void probe_for_neighbors(void); 202 extern int update_neighbor(vifi_t vifi, u_int32_t addr, 203 int msgtype, char *p, int datalen, 204 u_int32_t level); 205 extern void accept_neighbor_request(u_int32_t src, u_int32_t dst); 206 extern void accept_neighbor_request2(u_int32_t src, u_int32_t dst); 207 extern void accept_neighbors(u_int32_t src, u_int32_t dst, 208 u_char *p, int datalen, 209 u_int32_t level); 210 extern void accept_neighbors2(u_int32_t src, u_int32_t dst, 211 u_char *p, int datalen, 212 u_int32_t level); 213 extern void accept_leave_message(u_int32_t src, u_int32_t dst, 214 u_int32_t group); 215 extern void accept_membership_query(u_int32_t src, u_int32_t dst, 216 u_int32_t group, int tmo); 217 218 /* config.c */ 219 extern void config_vifs_from_kernel(void); 220 221 /* cfparse.y */ 222 extern void config_vifs_from_file(void); 223 224 /* inet.c */ 225 extern int inet_valid_host(u_int32_t naddr); 226 extern int inet_valid_mask(u_int32_t mask); 227 extern int inet_valid_subnet(u_int32_t nsubnet, u_int32_t nmask); 228 extern char * inet_fmt(u_int32_t addr, char *s); 229 extern char * inet_fmts(u_int32_t addr, u_int32_t mask, char *s); 230 extern u_int32_t inet_parse(char *s); 231 extern int inet_cksum(u_short *addr, u_int len); 232 233 /* prune.c */ 234 extern unsigned kroutes; 235 extern void add_table_entry(u_int32_t origin, u_int32_t mcastgrp); 236 extern void del_table_entry(struct rtentry *r, 237 u_int32_t mcastgrp, u_int del_flag); 238 extern void update_table_entry(struct rtentry *r); 239 extern void init_ktable(void); 240 extern void accept_prune(u_int32_t src, u_int32_t dst, char *p, 241 int datalen); 242 extern void steal_sources(struct rtentry *rt); 243 extern void reset_neighbor_state(vifi_t vifi, u_int32_t addr); 244 extern int grplst_mem(vifi_t vifi, u_int32_t mcastgrp); 245 extern int scoped_addr(vifi_t vifi, u_int32_t addr); 246 extern void free_all_prunes(void); 247 extern void age_table_entry(void); 248 extern void dump_cache(FILE *fp2); 249 extern void update_lclgrp(vifi_t vifi, u_int32_t mcastgrp); 250 extern void delete_lclgrp(vifi_t vifi, u_int32_t mcastgrp); 251 extern void chkgrp_graft(vifi_t vifi, u_int32_t mcastgrp); 252 extern void accept_graft(u_int32_t src, u_int32_t dst, char *p, 253 int datalen); 254 extern void accept_g_ack(u_int32_t src, u_int32_t dst, char *p, 255 int datalen); 256 /* u_int is promoted u_char */ 257 extern void accept_mtrace(u_int32_t src, u_int32_t dst, 258 u_int32_t group, char *data, u_int no, 259 int datalen); 260 extern int find_src_grp(u_int32_t, u_int32_t, u_int32_t); 261 262 /* kern.c */ 263 extern void k_set_rcvbuf(int bufsize); 264 extern void k_hdr_include(int bool); 265 extern void k_set_ttl(int t); 266 extern void k_set_loop(int l); 267 extern void k_set_if(u_int32_t ifa); 268 extern void k_join(u_int32_t grp, u_int32_t ifa); 269 extern void k_leave(u_int32_t grp, u_int32_t ifa); 270 extern void k_init_dvmrp(void); 271 extern void k_stop_dvmrp(void); 272 extern void k_add_vif(vifi_t vifi, struct uvif *v); 273 extern void k_del_vif(vifi_t vifi); 274 extern void k_add_rg(u_int32_t origin, struct gtable *g); 275 extern int k_del_rg(u_int32_t origin, struct gtable *g); 276 extern int k_get_version(void); 277 278 #ifdef SNMP 279 /* prune.c */ 280 extern struct rtentry * snmp_find_route(); 281 extern struct gtable * find_grp(); 282 extern struct stable * find_grp_src(); 283 #endif 284 285 #ifdef RSRR 286 /* prune.c */ 287 extern struct gtable *kernel_table; 288 extern struct gtable *gtp; 289 extern int find_src_grp(u_int32_t src, u_int32_t mask, 290 u_int32_t grp); 291 292 /* rsrr.c */ 293 extern void rsrr_init(void); 294 extern void rsrr_read(int f, fd_set *rfd); 295 extern void rsrr_clean(void); 296 extern void rsrr_cache_send(struct gtable *gt, int notify); 297 extern void rsrr_cache_clean(struct gtable *gt); 298 #endif /* RSRR */ 299 300 /* vif.c */ 301 extern void accept_info_reply(u_int32_t, u_int32_t, u_char *, int); 302 extern void accept_info_request(u_int32_t, u_int32_t, 303 u_char *, int); 304 extern void init_installvifs(void); 305
Indexes created Fri Sep 26 08:10:20 GMT 2025