/* * 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. * * * $FreeBSD$ * defs.h,v 3.8.4.15 1998/03/01 02:51:42 fenner Exp */ #include #include #include #include #include #include #include #include #include #include #include #include #ifdef SYSV #include #endif #ifdef _AIX #include #endif #include #include #include #define rtentry kern_rtentry /* XXX !!! UGH */ #include #undef rtentry #include #include #include #include #include #ifdef __FreeBSD__ /* sigh */ #include #if __FreeBSD_version >= 220000 #define rtentry kernel_rtentry #include #undef rtentry #endif #endif #include #ifdef RSRR #include #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 *, ...)) __printflike(3, 4); 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 */