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 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 /* Per-interface tracking info. */ 62 struct ifinfo { 63 TAILQ_ENTRY(ifinfo) ifi_next; /* pointer to the next interface */ 64 65 struct sockaddr_dl *sdl; /* link-layer address */ 66 char ifname[IFNAMSIZ]; /* interface name */ 67 uint32_t linkid; /* link ID of this interface */ 68 int active; /* interface status */ 69 int probeinterval; /* interval of probe timer (if necessary) */ 70 int probetimer; /* rest of probe timer */ 71 int mediareqok; /* whether the IF supports SIOCGIFMEDIA */ 72 int managedconfig; /* need a separate protocol for the "managed" 73 * configuration */ 74 int otherconfig; /* need a separate protocol for the "other" 75 * configuration */ 76 int alwaysconfig; /* Have we called the 'always' script? */ 77 int state; 78 int probes; 79 int dadcount; 80 struct timespec timer; 81 struct timespec expire; 82 #define IFI_DNSOPT_STATE_NOINFO 0 83 #define IFI_DNSOPT_STATE_RECEIVED 1 84 int ifi_rdnss; /* RDNSS option state */ 85 int ifi_dnssl; /* DNSSL option state */ 86 87 int racnt; /* total # of valid RAs it have got */ 88 TAILQ_HEAD(, rainfo) ifi_rainfo; 89 90 size_t rs_datalen; 91 u_char *rs_data; 92 }; 93 94 /* per interface status */ 95 #define IFS_IDLE 0 96 #define IFS_DELAY 1 97 #define IFS_PROBE 2 98 #define IFS_DOWN 3 99 #define IFS_TENTATIVE 4 100 101 /* Interface list */ 102 extern TAILQ_HEAD(ifinfo_head_t, ifinfo) ifinfo_head; 103 104 #define DNSINFO_ORIGIN_LABEL "slaac" 105 /* 106 * RFC 3542 API deprecates IPV6_PKTINFO in favor of 107 * IPV6_RECVPKTINFO 108 */ 109 #ifndef IPV6_RECVPKTINFO 110 #ifdef IPV6_PKTINFO 111 #define IPV6_RECVPKTINFO IPV6_PKTINFO 112 #endif 113 #endif 114 /* 115 * RFC 3542 API deprecates IPV6_HOPLIMIT in favor of 116 * IPV6_RECVHOPLIMIT 117 */ 118 #ifndef IPV6_RECVHOPLIMIT 119 #ifdef IPV6_HOPLIMIT 120 #define IPV6_RECVHOPLIMIT IPV6_HOPLIMIT 121 #endif 122 #endif 123 124 #ifndef IN6ADDR_LINKLOCAL_ALLROUTERS_INIT 125 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 126 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 127 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 128 #endif 129 130 #define TS_CMP(tsp, usp, cmp) \ 131 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 132 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 133 ((tsp)->tv_sec cmp (usp)->tv_sec)) 134 #define TS_ADD(tsp, usp, vsp) \ 135 do { \ 136 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 137 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 138 if ((vsp)->tv_nsec >= 1000000000L) { \ 139 (vsp)->tv_sec++; \ 140 (vsp)->tv_nsec -= 1000000000L; \ 141 } \ 142 } while (0) 143 #define TS_SUB(tsp, usp, vsp) \ 144 do { \ 145 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 146 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 147 if ((vsp)->tv_nsec < 0) { \ 148 (vsp)->tv_sec--; \ 149 (vsp)->tv_nsec += 1000000000L; \ 150 } \ 151 } while (0) 152 153 /* rtsold.c */ 154 struct cap_channel; 155 extern struct timespec tm_max; 156 extern int dflag; 157 extern int aflag; 158 extern int Fflag; 159 extern int uflag; 160 extern const char *managedconf_script; 161 extern const char *otherconf_script; 162 extern const char *alwaysconf_script; 163 extern const char *resolvconf_script; 164 extern struct cap_channel *capllflags, *capscript, *capsendmsg, *capsyslog; 165 166 struct ifinfo *find_ifinfo(int); 167 struct rainfo *find_rainfo(struct ifinfo *, struct sockaddr_in6 *); 168 void rtsol_timer_update(struct ifinfo *); 169 extern void warnmsg(int, const char *, const char *, ...) 170 __attribute__((__format__(__printf__, 3, 4))); 171 extern int ra_opt_handler(struct ifinfo *); 172 173 /* if.c */ 174 struct nd_opt_hdr; 175 extern int ifinit(void); 176 extern int interface_up(char *); 177 extern int interface_status(struct ifinfo *); 178 extern int lladdropt_length(struct sockaddr_dl *); 179 extern void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); 180 extern struct sockaddr_dl *if_nametosdl(char *); 181 182 /* rtsol.c */ 183 extern int recvsockopen(void); 184 extern void rtsol_input(int); 185 186 /* cap_llflags.c */ 187 extern int cap_llflags_get(struct cap_channel *, const char *, int *); 188 189 /* cap_script.c */ 190 extern int cap_script_run(struct cap_channel *, const char *const *); 191 extern int cap_script_wait(struct cap_channel *, int *); 192 193 /* cap_sendmsg.c */ 194 extern int cap_probe_defrouters(struct cap_channel *, struct ifinfo *); 195 extern int cap_rssend(struct cap_channel *, struct ifinfo *); 196 197 /* dump.c */ 198 extern FILE *rtsold_init_dumpfile(const char *); 199 extern void rtsold_dump(FILE *); 200 extern const char *sec2str(const struct timespec *); 201 202 /* rtsock.c */ 203 extern int rtsock_open(void); 204 extern int rtsock_input(int); 205