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 34 struct script_msg { 35 TAILQ_ENTRY(script_msg) sm_next; 36 37 char *sm_msg; 38 }; 39 40 TAILQ_HEAD(script_msg_head_t, script_msg); 41 42 struct 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 51 TAILQ_HEAD(rainfo_head, ra_opt); 52 53 struct 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 61 struct 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 */ 99 extern 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 */ 151 extern struct timespec tm_max; 152 extern int dflag; 153 extern int aflag; 154 extern int Fflag; 155 extern int uflag; 156 extern const char *otherconf_script; 157 extern const char *resolvconf_script; 158 extern int ifconfig(char *); 159 extern void iflist_init(void); 160 struct ifinfo *find_ifinfo(int); 161 struct rainfo *find_rainfo(struct ifinfo *, struct sockaddr_in6 *); 162 void rtsol_timer_update(struct ifinfo *); 163 extern void warnmsg(int, const char *, const char *, ...) 164 __attribute__((__format__(__printf__, 3, 4))); 165 extern char **autoifprobe(void); 166 extern int ra_opt_handler(struct ifinfo *); 167 168 /* if.c */ 169 extern int ifinit(void); 170 extern int interface_up(char *); 171 extern int interface_status(struct ifinfo *); 172 extern int lladdropt_length(struct sockaddr_dl *); 173 extern void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); 174 extern struct sockaddr_dl *if_nametosdl(char *); 175 extern int getinet6sysctl(int); 176 extern int setinet6sysctl(int, int); 177 178 /* rtsol.c */ 179 extern int rssock; 180 extern int sockopen(void); 181 extern void sendpacket(struct ifinfo *); 182 extern void rtsol_input(int); 183 184 /* probe.c */ 185 extern int probe_init(void); 186 extern void defrouter_probe(struct ifinfo *); 187 188 /* dump.c */ 189 extern void rtsold_dump_file(const char *); 190 extern const char *sec2str(const struct timespec *); 191 192 /* rtsock.c */ 193 extern int rtsock_open(void); 194 extern int rtsock_input(int); 195