1/* $KAME: rtsold.h,v 1.19 2003/04/16 09:48:15 itojun Exp $ */ 2 3/* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34struct script_msg { 35 TAILQ_ENTRY(script_msg) sm_next; 36 37 char *sm_msg; 38}; 39 40TAILQ_HEAD(script_msg_head_t, script_msg); 41 42struct ra_opt { 43 TAILQ_ENTRY(ra_opt) rao_next; 44 45 u_int8_t rao_type; 46 struct timespec rao_expire; 47 size_t rao_len; 48 void *rao_msg; 49}; 50 51TAILQ_HEAD(rainfo_head, ra_opt); 52 53struct rainfo { 54 TAILQ_ENTRY(rainfo) rai_next; 55 56 struct ifinfo *rai_ifinfo; 57 struct sockaddr_in6 rai_saddr; 58 TAILQ_HEAD(, ra_opt) rai_ra_opt; 59}; 60 61struct ifinfo { 62 TAILQ_ENTRY(ifinfo) ifi_next; /* pointer to the next interface */ 63 64 struct sockaddr_dl *sdl; /* link-layer address */ 65 char ifname[IFNAMSIZ]; /* interface name */ 66 u_int32_t linkid; /* link ID of this interface */ 67 int active; /* interface status */ 68 int probeinterval; /* interval of probe timer (if necessary) */ 69 int probetimer; /* rest of probe timer */ 70 int mediareqok; /* whether the IF supports SIOCGIFMEDIA */ 71 int otherconfig; /* need a separate protocol for the "other" 72 * configuration */ 73 int state; 74 int probes; 75 int dadcount; 76 struct timespec timer; 77 struct timespec expire; 78 int errors; /* # of errors we've got - detect wedge */ 79#define IFI_DNSOPT_STATE_NOINFO 0 80#define IFI_DNSOPT_STATE_RECEIVED 1 81 int ifi_rdnss; /* RDNSS option state */ 82 int ifi_dnssl; /* DNSSL option state */ 83 84 int racnt; /* total # of valid RAs it have got */ 85 TAILQ_HEAD(, rainfo) ifi_rainfo; 86 87 size_t rs_datalen; 88 u_char *rs_data; 89}; 90 91/* per interface status */ 92#define IFS_IDLE 0 93#define IFS_DELAY 1 94#define IFS_PROBE 2 95#define IFS_DOWN 3 96#define IFS_TENTATIVE 4 97 98/* Interface list */ 99extern TAILQ_HEAD(ifinfo_head_t, ifinfo) ifinfo_head; 100 101#define DNSINFO_ORIGIN_LABEL "slaac" 102/* 103 * RFC 3542 API deprecates IPV6_PKTINFO in favor of 104 * IPV6_RECVPKTINFO 105 */ 106#ifndef IPV6_RECVPKTINFO 107#ifdef IPV6_PKTINFO 108#define IPV6_RECVPKTINFO IPV6_PKTINFO 109#endif 110#endif 111/* 112 * RFC 3542 API deprecates IPV6_HOPLIMIT in favor of 113 * IPV6_RECVHOPLIMIT 114 */ 115#ifndef IPV6_RECVHOPLIMIT 116#ifdef IPV6_HOPLIMIT 117#define IPV6_RECVHOPLIMIT IPV6_HOPLIMIT 118#endif 119#endif 120 121#ifndef IN6ADDR_LINKLOCAL_ALLROUTERS_INIT 122#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 123 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 124 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 125#endif 126 127#define TS_CMP(tsp, usp, cmp) \ 128 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 129 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 130 ((tsp)->tv_sec cmp (usp)->tv_sec)) 131#define TS_ADD(tsp, usp, vsp) \ 132 do { \ 133 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 134 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 135 if ((vsp)->tv_nsec >= 1000000000L) { \ 136 (vsp)->tv_sec++; \ 137 (vsp)->tv_nsec -= 1000000000L; \ 138 } \ 139 } while (0) 140#define TS_SUB(tsp, usp, vsp) \ 141 do { \ 142 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 143 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 144 if ((vsp)->tv_nsec < 0) { \ 145 (vsp)->tv_sec--; \ 146 (vsp)->tv_nsec += 1000000000L; \ 147 } \ 148 } while (0) 149 150/* rtsold.c */ 151extern struct timespec tm_max; 152extern int dflag; 153extern int aflag; 154extern int Fflag; 155extern int uflag; 156extern const char *otherconf_script; 157extern const char *resolvconf_script; 158extern int ifconfig(char *); 159extern void iflist_init(void); 160struct ifinfo *find_ifinfo(int); 161struct rainfo *find_rainfo(struct ifinfo *, struct sockaddr_in6 *); 162void rtsol_timer_update(struct ifinfo *); 163extern void warnmsg(int, const char *, const char *, ...) 164 __attribute__((__format__(__printf__, 3, 4))); 165extern char **autoifprobe(void); 166extern int ra_opt_handler(struct ifinfo *); 167 168/* if.c */ 169extern int ifinit(void); 170extern int interface_up(char *); 171extern int interface_status(struct ifinfo *); 172extern int lladdropt_length(struct sockaddr_dl *); 173extern void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); 174extern struct sockaddr_dl *if_nametosdl(char *); 175extern int getinet6sysctl(int); 176extern int setinet6sysctl(int, int); 177 178/* rtsol.c */ 179extern int rssock; 180extern int sockopen(void); 181extern void sendpacket(struct ifinfo *); 182extern void rtsol_input(int); 183 184/* probe.c */ 185extern int probe_init(void); 186extern void defrouter_probe(struct ifinfo *); 187 188/* dump.c */ 189extern void rtsold_dump_file(const char *); 190extern const char *sec2str(const struct timespec *); 191 192/* rtsock.c */ 193extern int rtsock_open(void); 194extern int rtsock_input(int); 195