1 /* $KAME: rtsold.h,v 1.19 2003/04/16 09:48:15 itojun Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 36 struct script_msg { 37 TAILQ_ENTRY(script_msg) sm_next; 38 39 char *sm_msg; 40 }; 41 42 TAILQ_HEAD(script_msg_head_t, script_msg); 43 44 struct ra_opt { 45 TAILQ_ENTRY(ra_opt) rao_next; 46 47 u_int8_t rao_type; 48 struct timespec rao_expire; 49 size_t rao_len; 50 void *rao_msg; 51 }; 52 53 TAILQ_HEAD(rainfo_head, ra_opt); 54 55 struct rainfo { 56 TAILQ_ENTRY(rainfo) rai_next; 57 58 struct ifinfo *rai_ifinfo; 59 struct sockaddr_in6 rai_saddr; 60 TAILQ_HEAD(, ra_opt) rai_ra_opt; 61 }; 62 63 /* Per-interface tracking info. */ 64 struct ifinfo { 65 TAILQ_ENTRY(ifinfo) ifi_next; /* pointer to the next interface */ 66 67 struct sockaddr_dl *sdl; /* link-layer address */ 68 char ifname[IFNAMSIZ]; /* interface name */ 69 uint32_t linkid; /* link ID of this interface */ 70 int active; /* interface status */ 71 int probeinterval; /* interval of probe timer (if necessary) */ 72 int probetimer; /* rest of probe timer */ 73 int mediareqok; /* whether the IF supports SIOCGIFMEDIA */ 74 int managedconfig; /* need a separate protocol for the "managed" 75 * configuration */ 76 int otherconfig; /* need a separate protocol for the "other" 77 * configuration */ 78 int alwaysconfig; /* Have we called the 'always' script? */ 79 int state; 80 int probes; 81 int dadcount; 82 struct timespec timer; 83 struct timespec expire; 84 #define IFI_DNSOPT_STATE_NOINFO 0 85 #define IFI_DNSOPT_STATE_RECEIVED 1 86 int ifi_rdnss; /* RDNSS option state */ 87 int ifi_dnssl; /* DNSSL option state */ 88 89 int racnt; /* total # of valid RAs it have got */ 90 TAILQ_HEAD(, rainfo) ifi_rainfo; 91 92 size_t rs_datalen; 93 u_char *rs_data; 94 }; 95 96 /* per interface status */ 97 #define IFS_IDLE 0 98 #define IFS_DELAY 1 99 #define IFS_PROBE 2 100 #define IFS_DOWN 3 101 #define IFS_TENTATIVE 4 102 103 /* Interface list */ 104 extern TAILQ_HEAD(ifinfo_head_t, ifinfo) ifinfo_head; 105 106 #define DNSINFO_ORIGIN_LABEL "slaac" 107 /* 108 * RFC 3542 API deprecates IPV6_PKTINFO in favor of 109 * IPV6_RECVPKTINFO 110 */ 111 #ifndef IPV6_RECVPKTINFO 112 #ifdef IPV6_PKTINFO 113 #define IPV6_RECVPKTINFO IPV6_PKTINFO 114 #endif 115 #endif 116 /* 117 * RFC 3542 API deprecates IPV6_HOPLIMIT in favor of 118 * IPV6_RECVHOPLIMIT 119 */ 120 #ifndef IPV6_RECVHOPLIMIT 121 #ifdef IPV6_HOPLIMIT 122 #define IPV6_RECVHOPLIMIT IPV6_HOPLIMIT 123 #endif 124 #endif 125 126 #ifndef IN6ADDR_LINKLOCAL_ALLROUTERS_INIT 127 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 128 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 129 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 130 #endif 131 132 #define TS_CMP(tsp, usp, cmp) \ 133 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 134 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 135 ((tsp)->tv_sec cmp (usp)->tv_sec)) 136 #define TS_ADD(tsp, usp, vsp) \ 137 do { \ 138 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 139 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 140 if ((vsp)->tv_nsec >= 1000000000L) { \ 141 (vsp)->tv_sec++; \ 142 (vsp)->tv_nsec -= 1000000000L; \ 143 } \ 144 } while (0) 145 #define TS_SUB(tsp, usp, vsp) \ 146 do { \ 147 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 148 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 149 if ((vsp)->tv_nsec < 0) { \ 150 (vsp)->tv_sec--; \ 151 (vsp)->tv_nsec += 1000000000L; \ 152 } \ 153 } while (0) 154 155 /* rtsold.c */ 156 struct cap_channel; 157 extern struct timespec tm_max; 158 extern int dflag; 159 extern int aflag; 160 extern int Fflag; 161 extern int uflag; 162 extern const char *managedconf_script; 163 extern const char *otherconf_script; 164 extern const char *alwaysconf_script; 165 extern const char *resolvconf_script; 166 extern struct cap_channel *capllflags, *capscript, *capsendmsg, *capsyslog; 167 168 struct ifinfo *find_ifinfo(int); 169 struct rainfo *find_rainfo(struct ifinfo *, struct sockaddr_in6 *); 170 void rtsol_timer_update(struct ifinfo *); 171 extern void warnmsg(int, const char *, const char *, ...) 172 __attribute__((__format__(__printf__, 3, 4))); 173 extern int ra_opt_handler(struct ifinfo *); 174 175 /* if.c */ 176 struct nd_opt_hdr; 177 extern int ifinit(void); 178 extern int interface_up(char *); 179 extern int interface_status(struct ifinfo *); 180 extern int lladdropt_length(struct sockaddr_dl *); 181 extern void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); 182 extern struct sockaddr_dl *if_nametosdl(char *); 183 184 /* rtsol.c */ 185 extern int recvsockopen(void); 186 extern void rtsol_input(int); 187 188 /* cap_llflags.c */ 189 extern int cap_llflags_get(struct cap_channel *, const char *, int *); 190 191 /* cap_script.c */ 192 extern int cap_script_run(struct cap_channel *, const char *const *); 193 extern int cap_script_wait(struct cap_channel *, int *); 194 195 /* cap_sendmsg.c */ 196 extern int cap_probe_defrouters(struct cap_channel *, struct ifinfo *); 197 extern int cap_rssend(struct cap_channel *, struct ifinfo *); 198 199 /* dump.c */ 200 extern FILE *rtsold_init_dumpfile(const char *); 201 extern void rtsold_dump(FILE *); 202 extern const char *sec2str(const struct timespec *); 203 204 /* rtsock.c */ 205 extern int rtsock_open(void); 206 extern int rtsock_input(int); 207