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 otherconfig; /* need a separate protocol for the "other" 75 * configuration */ 76 int state; 77 int probes; 78 int dadcount; 79 struct timespec timer; 80 struct timespec expire; 81 #define IFI_DNSOPT_STATE_NOINFO 0 82 #define IFI_DNSOPT_STATE_RECEIVED 1 83 int ifi_rdnss; /* RDNSS option state */ 84 int ifi_dnssl; /* DNSSL option state */ 85 86 int racnt; /* total # of valid RAs it have got */ 87 TAILQ_HEAD(, rainfo) ifi_rainfo; 88 89 size_t rs_datalen; 90 u_char *rs_data; 91 }; 92 93 /* per interface status */ 94 #define IFS_IDLE 0 95 #define IFS_DELAY 1 96 #define IFS_PROBE 2 97 #define IFS_DOWN 3 98 #define IFS_TENTATIVE 4 99 100 /* Interface list */ 101 extern TAILQ_HEAD(ifinfo_head_t, ifinfo) ifinfo_head; 102 103 #define DNSINFO_ORIGIN_LABEL "slaac" 104 /* 105 * RFC 3542 API deprecates IPV6_PKTINFO in favor of 106 * IPV6_RECVPKTINFO 107 */ 108 #ifndef IPV6_RECVPKTINFO 109 #ifdef IPV6_PKTINFO 110 #define IPV6_RECVPKTINFO IPV6_PKTINFO 111 #endif 112 #endif 113 /* 114 * RFC 3542 API deprecates IPV6_HOPLIMIT in favor of 115 * IPV6_RECVHOPLIMIT 116 */ 117 #ifndef IPV6_RECVHOPLIMIT 118 #ifdef IPV6_HOPLIMIT 119 #define IPV6_RECVHOPLIMIT IPV6_HOPLIMIT 120 #endif 121 #endif 122 123 #ifndef IN6ADDR_LINKLOCAL_ALLROUTERS_INIT 124 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 125 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 126 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 127 #endif 128 129 #define TS_CMP(tsp, usp, cmp) \ 130 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 131 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 132 ((tsp)->tv_sec cmp (usp)->tv_sec)) 133 #define TS_ADD(tsp, usp, vsp) \ 134 do { \ 135 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 136 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 137 if ((vsp)->tv_nsec >= 1000000000L) { \ 138 (vsp)->tv_sec++; \ 139 (vsp)->tv_nsec -= 1000000000L; \ 140 } \ 141 } while (0) 142 #define TS_SUB(tsp, usp, vsp) \ 143 do { \ 144 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 145 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 146 if ((vsp)->tv_nsec < 0) { \ 147 (vsp)->tv_sec--; \ 148 (vsp)->tv_nsec += 1000000000L; \ 149 } \ 150 } while (0) 151 152 /* rtsold.c */ 153 struct cap_channel; 154 extern struct timespec tm_max; 155 extern int dflag; 156 extern int aflag; 157 extern int Fflag; 158 extern int uflag; 159 extern const char *otherconf_script; 160 extern const char *resolvconf_script; 161 extern struct cap_channel *capllflags, *capscript, *capsendmsg, *capsyslog; 162 163 struct ifinfo *find_ifinfo(int); 164 struct rainfo *find_rainfo(struct ifinfo *, struct sockaddr_in6 *); 165 void rtsol_timer_update(struct ifinfo *); 166 extern void warnmsg(int, const char *, const char *, ...) 167 __attribute__((__format__(__printf__, 3, 4))); 168 extern int ra_opt_handler(struct ifinfo *); 169 170 /* if.c */ 171 struct nd_opt_hdr; 172 extern int ifinit(void); 173 extern int interface_up(char *); 174 extern int interface_status(struct ifinfo *); 175 extern int lladdropt_length(struct sockaddr_dl *); 176 extern void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); 177 extern struct sockaddr_dl *if_nametosdl(char *); 178 179 /* rtsol.c */ 180 extern int recvsockopen(void); 181 extern void rtsol_input(int); 182 183 /* cap_llflags.c */ 184 extern int cap_llflags_get(struct cap_channel *, const char *, int *); 185 186 /* cap_script.c */ 187 extern int cap_script_run(struct cap_channel *, const char *const *); 188 extern int cap_script_wait(struct cap_channel *, int *); 189 190 /* cap_sendmsg.c */ 191 extern int cap_probe_defrouters(struct cap_channel *, struct ifinfo *); 192 extern int cap_rssend(struct cap_channel *, struct ifinfo *); 193 194 /* dump.c */ 195 extern FILE *rtsold_init_dumpfile(const char *); 196 extern void rtsold_dump(FILE *); 197 extern const char *sec2str(const struct timespec *); 198 199 /* rtsock.c */ 200 extern int rtsock_open(void); 201 extern int rtsock_input(int); 202