Annotation of embedaddon/mrouted/defs.h, revision 1.1
1.1 ! misho 1: /*
! 2: * The mrouted program is covered by the license in the accompanying file
! 3: * named "LICENSE". Use of the mrouted program represents acceptance of
! 4: * the terms and conditions listed in that file.
! 5: *
! 6: * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
! 7: * Leland Stanford Junior University.
! 8: */
! 9: #ifndef __MROUTED_DEFS_H__
! 10: #define __MROUTED_DEFS_H__
! 11:
! 12: #include <stdio.h>
! 13: #include <stdlib.h>
! 14: #include <unistd.h>
! 15: #include <ctype.h>
! 16: #include <errno.h>
! 17: #include <syslog.h>
! 18: #include <signal.h>
! 19: #include <string.h>
! 20: #include <sys/param.h>
! 21: #include <sys/types.h>
! 22: #include <sys/socket.h>
! 23: #include <sys/ioctl.h>
! 24: #if ((defined(SYSV)) || (defined(__bsdi__)) || ((defined SunOS) && (SunOS < 50)))
! 25: #include <sys/sockio.h>
! 26: #endif /* SYSV || bsdi || SunOS 4.x */
! 27: #include <time.h>
! 28: #include <sys/time.h>
! 29: #include <sys/uio.h>
! 30: #include <net/if.h>
! 31: #include <netinet/in.h>
! 32: #include <netinet/in_systm.h>
! 33: #include <netinet/ip.h>
! 34: #include <netinet/ip_icmp.h>
! 35: #include <netinet/igmp.h>
! 36: #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
! 37: #include <osreldate.h>
! 38: #endif /* __FreeBSD__ */
! 39: #if (defined(__bsdi__)) || (defined(__FreeBSD__) && (__FreeBSD_version >= 220000)) || defined(__FreeBSD_kernel__)
! 40: #define rtentry kernel_rtentry
! 41: #include <net/route.h>
! 42: #undef rtentry
! 43: #endif /* bsdi or __FreeBSD_version >= 220000 */
! 44: #ifdef __linux__
! 45: #define _LINUX_IN_H /* For Linux <= 2.6.25 */
! 46: #include <linux/types.h>
! 47: #include <linux/mroute.h>
! 48: #else
! 49: #include <netinet/ip_mroute.h>
! 50: #endif
! 51: #if defined(HAVE_STRLCPY)
! 52: #include <string.h>
! 53: #endif
! 54: #if defined(HAVE_STRTONUM)
! 55: #include <stdlib.h>
! 56: #endif
! 57: #if defined(HAVE_PIDFILE)
! 58: #if defined(OpenBSD) || defined(NetBSD)
! 59: #include <util.h>
! 60: #else
! 61: #include <libutil.h>
! 62: #endif
! 63: #endif
! 64: #ifdef RSRR
! 65: #include <sys/un.h>
! 66: #endif /* RSRR */
! 67:
! 68: /*XXX*/
! 69: typedef u_int u_int32;
! 70:
! 71: typedef void (*cfunc_t) (void*);
! 72: typedef void (*ihfunc_t) (int, fd_set *);
! 73:
! 74: #include "dvmrp.h"
! 75: #include "igmpv2.h"
! 76: #include "vif.h"
! 77: #include "route.h"
! 78: #include "prune.h"
! 79: #include "pathnames.h"
! 80: #ifdef RSRR
! 81: #include "rsrr.h"
! 82: #include "rsrr_var.h"
! 83: #endif /* RSRR */
! 84:
! 85: /*
! 86: * Miscellaneous constants and macros.
! 87: */
! 88: #define FALSE 0
! 89: #define TRUE 1
! 90:
! 91: #define EQUAL(s1, s2) (strcmp((s1), (s2)) == 0)
! 92: #define ARRAY_LEN(a) (sizeof((a)) / sizeof((a)[0]))
! 93:
! 94: #define TIMER_INTERVAL ROUTE_MAX_REPORT_DELAY
! 95:
! 96: #define PROTOCOL_VERSION 3 /* increment when packet format/content changes */
! 97: #define MROUTED_VERSION 9 /* not in DVMRP packets at all */
! 98:
! 99: #define DVMRP_CONSTANT 0x000eff00 /* constant portion of 'group' field */
! 100:
! 101: #define MROUTED_LEVEL (DVMRP_CONSTANT | PROTOCOL_VERSION)
! 102: /* for IGMP 'group' field of DVMRP messages */
! 103:
! 104: #define LEAF_FLAGS (( vifs_with_neighbors == 1 ) ? 0x010000 : 0)
! 105: /* more for IGMP 'group' field of DVMRP messages */
! 106:
! 107: #define DEL_RTE_GROUP 0
! 108: #define DEL_ALL_ROUTES 1
! 109: /* for Deleting kernel table entries */
! 110:
! 111: #define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */
! 112:
! 113: #ifdef RSRR
! 114: #define BIT_ZERO(X) ((X) = 0)
! 115: #define BIT_SET(X,n) ((X) |= 1 << (n))
! 116: #define BIT_CLR(X,n) ((X) &= ~(1 << (n)))
! 117: #define BIT_TST(X,n) ((X) & 1 << (n))
! 118: #endif /* RSRR */
! 119:
! 120: #ifdef SYSV
! 121: #define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0)
! 122: #endif
! 123:
! 124: #if defined(_AIX) || (defined(BSD) && (BSD >= 199103))
! 125: #define HAVE_SA_LEN
! 126: #endif
! 127:
! 128: /*
! 129: * External declarations for global variables and functions.
! 130: */
! 131: #define RECV_BUF_SIZE 8192
! 132: extern char *recv_buf;
! 133: extern char *send_buf;
! 134: extern int igmp_socket;
! 135: extern u_int32 allhosts_group;
! 136: extern u_int32 allrtrs_group;
! 137: extern u_int32 dvmrp_group;
! 138: extern u_int32 dvmrp_genid;
! 139:
! 140: #define IF_DEBUG(l) if (debug && debug & (l))
! 141:
! 142: #define DEBUG_PKT 0x0001
! 143: #define DEBUG_PRUNE 0x0002
! 144: #define DEBUG_ROUTE 0x0004
! 145: #define DEBUG_PEER 0x0008
! 146: #define DEBUG_CACHE 0x0010
! 147: #define DEBUG_TIMEOUT 0x0020
! 148: #define DEBUG_IF 0x0040
! 149: #define DEBUG_MEMBER 0x0080
! 150: #define DEBUG_TRACE 0x0100
! 151: #define DEBUG_IGMP 0x0200
! 152: #define DEBUG_RTDETAIL 0x0400
! 153: #define DEBUG_KERN 0x0800
! 154: #define DEBUG_RSRR 0x1000
! 155: #define DEBUG_ICMP 0x2000
! 156:
! 157: #define DEFAULT_DEBUG 0x02de /* default if "-d" given without value */
! 158:
! 159: extern int debug;
! 160: extern int did_final_init;
! 161:
! 162: extern int routes_changed;
! 163: extern int delay_change_reports;
! 164: extern unsigned nroutes;
! 165:
! 166: extern struct uvif uvifs[MAXVIFS];
! 167: extern vifi_t numvifs;
! 168: extern int vifs_down;
! 169: extern int udp_socket;
! 170: extern int vifs_with_neighbors;
! 171:
! 172: #define MAX_INET_BUF_LEN 19
! 173: extern char s1[MAX_INET_BUF_LEN];
! 174: extern char s2[MAX_INET_BUF_LEN];
! 175: extern char s3[MAX_INET_BUF_LEN];
! 176: extern char s4[MAX_INET_BUF_LEN];
! 177:
! 178: #define MAX_VERSION_LEN 100
! 179: extern char versionstring[MAX_VERSION_LEN];
! 180:
! 181: #if !(defined(BSD) && (BSD >= 199103)) && !defined(__linux__)
! 182: extern int errno;
! 183: #endif
! 184:
! 185: #ifdef OLD_KERNEL
! 186: #define MRT_INIT DVMRP_INIT
! 187: #define MRT_DONE DVMRP_DONE
! 188: #define MRT_ADD_VIF DVMRP_ADD_VIF
! 189: #define MRT_DEL_VIF DVMRP_DEL_VIF
! 190: #define MRT_ADD_MFC DVMRP_ADD_MFC
! 191: #define MRT_DEL_MFC DVMRP_DEL_MFC
! 192: #endif
! 193:
! 194: #ifndef IGMP_PIM
! 195: #define IGMP_PIM 0x14
! 196: #endif
! 197: #ifndef IPPROTO_IPIP
! 198: #define IPPROTO_IPIP 4
! 199: #endif
! 200:
! 201: /*
! 202: * The original multicast releases defined
! 203: * IGMP_HOST_{MEMBERSHIP_QUERY,MEMBERSHIP_REPORT,NEW_MEMBERSHIP_REPORT
! 204: * ,LEAVE_MESSAGE}. Later releases removed the HOST and inserted
! 205: * the IGMP version number. NetBSD inserted the version number in
! 206: * a different way. mrouted uses the new names, so we #define them
! 207: * to the old ones if needed.
! 208: */
! 209: #if !defined(IGMP_MEMBERSHIP_QUERY) && defined(IGMP_HOST_MEMBERSHIP_QUERY)
! 210: #define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY
! 211: #define IGMP_V2_LEAVE_GROUP IGMP_HOST_LEAVE_MESSAGE
! 212: #endif
! 213: #ifndef IGMP_V1_MEMBERSHIP_REPORT
! 214: #ifdef IGMP_HOST_MEMBERSHIP_REPORT
! 215: #define IGMP_V1_MEMBERSHIP_REPORT IGMP_HOST_MEMBERSHIP_REPORT
! 216: #define IGMP_V2_MEMBERSHIP_REPORT IGMP_HOST_NEW_MEMBERSHIP_REPORT
! 217: #endif
! 218: #ifdef IGMP_v1_HOST_MEMBERSHIP_REPORT
! 219: #define IGMP_V1_MEMBERSHIP_REPORT IGMP_v1_HOST_MEMBERSHIP_REPORT
! 220: #define IGMP_V2_MEMBERSHIP_REPORT IGMP_v2_HOST_MEMBERSHIP_REPORT
! 221: #endif
! 222: #endif
! 223:
! 224: /*
! 225: * NetBSD also renamed the mtrace types.
! 226: */
! 227: #if !defined(IGMP_MTRACE_RESP) && defined(IGMP_MTRACE_REPLY)
! 228: #define IGMP_MTRACE_RESP IGMP_MTRACE_REPLY
! 229: #define IGMP_MTRACE IGMP_MTRACE_QUERY
! 230: #endif
! 231:
! 232: /* main.c */
! 233: extern char * scaletime(u_long);
! 234: extern void logit(int, int, const char *, ...);
! 235: extern int register_input_handler(int, ihfunc_t);
! 236:
! 237: /* igmp.c */
! 238: extern void init_igmp(void);
! 239: extern void accept_igmp(size_t);
! 240: extern size_t build_igmp(u_int32, u_int32, int, int, u_int32, int);
! 241: extern void send_igmp(u_int32, u_int32, int, int, u_int32, int);
! 242: extern char * igmp_packet_kind(u_int, u_int);
! 243: extern int igmp_debug_kind(u_int, u_int);
! 244:
! 245: /* icmp.c */
! 246: extern void init_icmp(void);
! 247:
! 248: /* ipip.c */
! 249: extern void init_ipip(void);
! 250: extern void init_ipip_on_vif(struct uvif *);
! 251: extern void send_ipip(u_int32, u_int32, int, int, u_int32, int, struct uvif *);
! 252:
! 253: /* callout.c */
! 254: extern void callout_init(void);
! 255: extern void free_all_callouts(void);
! 256: extern void age_callout_queue(int);
! 257: extern int timer_nextTimer(void);
! 258: extern int timer_setTimer(int, cfunc_t, void *);
! 259: extern int timer_clearTimer(int);
! 260: extern int timer_leftTimer(int);
! 261:
! 262: /* route.c */
! 263: extern void init_routes(void);
! 264: extern void start_route_updates(void);
! 265: extern void update_route(u_int32, u_int32, u_int, u_int32, vifi_t, struct listaddr *);
! 266: extern void age_routes(void);
! 267: extern void expire_all_routes(void);
! 268: extern void free_all_routes(void);
! 269: extern void accept_probe(u_int32, u_int32, char *, size_t, u_int32);
! 270: extern void accept_report(u_int32, u_int32, char *, size_t, u_int32);
! 271: extern struct rtentry * determine_route(u_int32 src);
! 272: extern void report(int, vifi_t, u_int32);
! 273: extern void report_to_all_neighbors(int);
! 274: extern int report_next_chunk(void);
! 275: extern void blaster_alloc(vifi_t);
! 276: extern void add_vif_to_routes(vifi_t);
! 277: extern void delete_vif_from_routes(vifi_t);
! 278: extern void add_neighbor_to_routes(vifi_t, u_int);
! 279: extern void delete_neighbor_from_routes(u_int32, vifi_t, u_int);
! 280: extern void dump_routes(FILE *fp);
! 281:
! 282: /* vif.c */
! 283: extern void init_vifs(void);
! 284: extern void zero_vif(struct uvif *, int);
! 285: extern void init_installvifs(void);
! 286: extern void check_vif_state(void);
! 287: extern void send_on_vif(struct uvif *, u_int32, int, size_t);
! 288: extern vifi_t find_vif(u_int32, u_int32);
! 289: extern void age_vifs(void);
! 290: extern void dump_vifs(FILE *);
! 291: extern void stop_all_vifs(void);
! 292: extern struct listaddr *neighbor_info(vifi_t, u_int32);
! 293: extern void accept_group_report(u_int32, u_int32, u_int32, int);
! 294: extern void query_groups(void);
! 295: extern void probe_for_neighbors(void);
! 296: extern struct listaddr *update_neighbor(vifi_t, u_int32, int, char *, size_t, u_int32);
! 297: extern void accept_neighbor_request(u_int32, u_int32);
! 298: extern void accept_neighbor_request2(u_int32, u_int32);
! 299: extern void accept_info_request(u_int32, u_int32, u_char *, size_t);
! 300: extern void accept_info_reply(u_int32, u_int32, u_char *, size_t);
! 301: extern void accept_neighbors(u_int32, u_int32, u_char *, size_t, u_int32);
! 302: extern void accept_neighbors2(u_int32, u_int32, u_char *, size_t, u_int32);
! 303: extern void accept_leave_message(u_int32, u_int32, u_int32);
! 304: extern void accept_membership_query(u_int32, u_int32, u_int32, int);
! 305:
! 306: /* config.c */
! 307: extern void config_vifs_from_kernel(void);
! 308:
! 309: /* cfparse.y */
! 310: extern void config_vifs_from_file(void);
! 311:
! 312: /* inet.c */
! 313: extern int inet_valid_host(u_int32);
! 314: extern int inet_valid_mask(u_int32);
! 315: extern int inet_valid_subnet(u_int32, u_int32);
! 316: extern char * inet_fmt(u_int32, char *, size_t);
! 317: extern char * inet_fmts(u_int32, u_int32, char *, size_t);
! 318: extern u_int32 inet_parse(char *, int);
! 319: extern int inet_cksum(u_int16_t *, u_int);
! 320:
! 321: /* prune.c */
! 322: extern unsigned kroutes;
! 323: extern void determine_forwvifs(struct gtable *);
! 324: extern void send_prune_or_graft(struct gtable *);
! 325: extern void add_table_entry(u_int32, u_int32);
! 326: extern void del_table_entry(struct rtentry *,
! 327: u_int32, u_int);
! 328: extern void update_table_entry(struct rtentry *, u_int32);
! 329: extern int find_src_grp(u_int32, u_int32, u_int32);
! 330: extern void init_ktable(void);
! 331: extern void steal_sources(struct rtentry *);
! 332: extern void reset_neighbor_state(vifi_t, u_int32);
! 333: extern int grplst_mem(vifi_t, u_int32);
! 334: extern void free_all_prunes(void);
! 335: extern void age_table_entry(void);
! 336: extern void dump_cache(FILE *);
! 337: extern void update_lclgrp(vifi_t, u_int32);
! 338: extern void delete_lclgrp(vifi_t, u_int32);
! 339: extern void chkgrp_graft(vifi_t, u_int32);
! 340: extern void accept_prune(u_int32, u_int32, char *, size_t);
! 341: extern void accept_graft(u_int32, u_int32, char *, size_t);
! 342: extern void accept_g_ack(u_int32, u_int32, char *, size_t);
! 343: /* u_int is promoted u_char */
! 344: extern void accept_mtrace(u_int32, u_int32, u_int32, char *, u_int8_t, size_t);
! 345:
! 346: /* kern.c */
! 347: extern void k_set_rcvbuf(int, int);
! 348: extern void k_hdr_include(int);
! 349: extern void k_set_ttl(int);
! 350: extern void k_set_loop(int);
! 351: extern void k_set_if(u_int32);
! 352: extern void k_join(u_int32, u_int32);
! 353: extern void k_leave(u_int32, u_int32);
! 354: extern void k_init_dvmrp(void);
! 355: extern void k_stop_dvmrp(void);
! 356: extern void k_add_vif(vifi_t, struct uvif *);
! 357: extern void k_del_vif(vifi_t, struct uvif *);
! 358: extern void k_add_rg(u_int32, struct gtable *);
! 359: extern int k_del_rg(u_int32, struct gtable *);
! 360: extern int k_get_version(void);
! 361:
! 362: #ifdef SNMP
! 363: /* prune.c */
! 364: extern struct gtable * find_grp(u_int32);
! 365: extern struct stable * find_grp_src(struct gtable *, u_int32);
! 366: extern int next_grp_src_mask(struct gtable **, struct stable **, u_int32, u_int32, u_int32);
! 367: extern void refresh_sg(struct sioc_sg_req *, struct gtable *, struct stable *);
! 368: extern int next_child(struct gtable **, struct stable **,
! 369: u_int32, u_int32, u_int32, vifi_t *);
! 370:
! 371: /* route.c */
! 372: extern struct rtentry * snmp_find_route(u_int32, u_int32);
! 373: extern int next_route(struct rtentry **, u_int32, u_int32);
! 374: extern int next_route_child(struct rtentry **, u_int32, u_int32, vifi_t *);
! 375: #endif
! 376:
! 377: #ifdef RSRR
! 378: /* prune.c */
! 379: extern struct gtable *kernel_table;
! 380: extern struct gtable *gtp;
! 381:
! 382: /* rsrr.c */
! 383: extern void rsrr_init(void);
! 384: extern void rsrr_clean(void);
! 385: extern void rsrr_cache_send(struct gtable *, int);
! 386: extern void rsrr_cache_clean(struct gtable *);
! 387: #endif /* RSRR */
! 388:
! 389: #ifdef __GNUC__
! 390: # define UNUSED __attribute__((unused))
! 391: #else
! 392: # define UNUSED /*empty*/
! 393: #endif
! 394:
! 395: #ifndef HAVE_STRLCPY
! 396: size_t strlcpy(char *dst, const char *src, size_t siz);
! 397: #endif
! 398: #ifndef HAVE_STRTONUM
! 399: long long strtonum(const char *numstr, long long minval, long long maxval, const char **errstrp);
! 400: #endif
! 401: #ifndef HAVE_PIDFILE
! 402: int pidfile(const char *basename);
! 403: #endif
! 404:
! 405: #endif /* __MROUTED_DEFS_H__ */
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