in6_var.h revision 1.2
1 /* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 1985, 1986, 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 63 */ 64 65 #ifndef _NETINET6_IN6_VAR_H_ 66 #define _NETINET6_IN6_VAR_H_ 67 68 /* 69 * Interface address, Internet version. One of these structures 70 * is allocated for each interface with an Internet address. 71 * The ifaddr structure contains the protocol-independent part 72 * of the structure and is assumed to be first. 73 */ 74 75 /* 76 * pltime/vltime are just for future reference (required to implements 2 77 * hour rule for hosts). they should never be modified by nd6_timeout or 78 * anywhere else. 79 * userland -> kernel: accept pltime/vltime 80 * kernel -> userland: throuw up everything 81 * in kernel: modify preferred/expire only 82 */ 83 struct in6_addrlifetime { 84 time_t ia6t_expire; /* valid lifetime expiration time */ 85 time_t ia6t_preferred; /* preferred lifetime expiration time */ 86 u_int32_t ia6t_vltime; /* valid lifetime */ 87 u_int32_t ia6t_pltime; /* prefix lifetime */ 88 }; 89 90 struct in6_ifaddr { 91 struct ifaddr ia_ifa; /* protocol-independent info */ 92 #define ia_ifp ia_ifa.ifa_ifp 93 #define ia_flags ia_ifa.ifa_flags 94 struct sockaddr_in6 ia_addr; /* interface address */ 95 struct sockaddr_in6 ia_net; /* network number of interface */ 96 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 97 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 98 u_long ia_plen; /* prefix length */ 99 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 100 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 101 /* list of multicast addresses */ 102 int ia6_flags; 103 104 struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ 105 }; 106 107 struct in6_ifreq { 108 char ifr_name[IFNAMSIZ]; 109 union { 110 struct sockaddr_in6 ifru_addr; 111 struct sockaddr_in6 ifru_dstaddr; 112 short ifru_flags; 113 int ifru_flags6; 114 int ifru_metric; 115 caddr_t ifru_data; 116 struct in6_addrlifetime ifru_lifetime; 117 } ifr_ifru; 118 }; 119 120 struct in6_aliasreq { 121 char ifra_name[IFNAMSIZ]; 122 struct sockaddr_in6 ifra_addr; 123 struct sockaddr_in6 ifra_dstaddr; 124 struct sockaddr_in6 ifra_prefixmask; 125 int ifra_flags; 126 struct in6_addrlifetime ifra_lifetime; 127 }; 128 129 /* 130 * prefix related flags passed between kernel(NDP related part) and 131 * user land command(ifconfig) and daemon(rtadvd). 132 */ 133 struct in6_prflags { 134 struct prf_ra { 135 u_char onlink : 1; 136 u_char autonomous : 1; 137 u_char reserved : 6; 138 } prf_ra; 139 u_char prf_reserved1; 140 u_short prf_reserved2; 141 /* want to put this on 4byte offset */ 142 struct prf_rr { 143 u_char decrvalid : 1; 144 u_char decrprefd : 1; 145 u_char reserved : 6; 146 } prf_rr; 147 u_char prf_reserved3; 148 u_short prf_reserved4; 149 }; 150 151 struct in6_prefixreq { 152 char ipr_name[IFNAMSIZ]; 153 u_char ipr_origin; 154 u_char ipr_plen; 155 u_long ipr_vltime; 156 u_long ipr_pltime; 157 struct in6_prflags ipr_flags; 158 struct sockaddr_in6 ipr_prefix; 159 }; 160 161 #define PR_ORIG_RA 0 162 #define PR_ORIG_RR 1 163 #define PR_ORIG_STATIC 2 164 165 #define ipr_raf_onlink ipr_flags.prf_ra.onlink 166 #define ipr_raf_auto ipr_flags.prf_ra.autonomous 167 168 #define ipr_statef_onlink ipr_flags.prf_state.onlink 169 170 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 171 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 172 173 struct in6_rrenumreq { 174 char irr_name[IFNAMSIZ]; 175 u_char irr_origin; 176 u_char irr_m_len; /* match len for matchprefix */ 177 u_char irr_m_minlen; /* minlen for matching prefix */ 178 u_char irr_m_maxlen; /* maxlen for matching prefix */ 179 u_char irr_u_uselen; /* uselen for adding prefix */ 180 u_char irr_u_keeplen; /* keeplen from matching prefix */ 181 struct irr_raflagmask { 182 u_char onlink : 1; 183 u_char autonomous : 1; 184 u_char reserved : 6; 185 } irr_raflagmask; 186 u_long irr_vltime; 187 u_long irr_pltime; 188 struct in6_prflags irr_flags; 189 struct sockaddr_in6 irr_matchprefix; 190 struct sockaddr_in6 irr_useprefix; 191 }; 192 193 #define irr_raf_mask_onlink irr_raflagmask.onlink 194 #define irr_raf_mask_auto irr_raflagmask.autonomous 195 #define irr_raf_mask_reserved irr_raflagmask.reserved 196 197 #define irr_raf_onlink irr_flags.prf_ra.onlink 198 #define irr_raf_auto irr_flags.prf_ra.autonomous 199 200 #define irr_statef_onlink irr_flags.prf_state.onlink 201 202 #define irr_rrf irr_flags.prf_rr 203 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 204 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 205 206 /* 207 * Given a pointer to an in6_ifaddr (ifaddr), 208 * return a pointer to the addr as a sockaddr_in6 209 */ 210 #define IA6_IN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_addr.sin6_addr)) 211 #define IA6_DSTIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_dstaddr.sin6_addr)) 212 #define IA6_MASKIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_prefixmask.sin6_addr)) 213 #define IA6_SIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_addr)) 214 #define IA6_DSTSIN6(ia) (&(((struct in6_ifaddr *)(ia))->ia_dstaddr)) 215 #define IFA_IN6(x) (((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 216 217 #define IFPR_IN6(x) (((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 218 219 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 220 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 221 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 222 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 223 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 224 225 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 226 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 227 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 228 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 229 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 230 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 231 232 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 233 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 234 235 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 236 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 237 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 238 239 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 240 241 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 242 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) 243 #define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq) 244 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 245 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 246 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 247 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 248 249 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 250 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 251 252 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 253 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 254 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 255 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 256 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 257 struct in6_rrenumreq) /* change */ 258 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 259 struct in6_rrenumreq) /* set global */ 260 261 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 262 struct sioc_sg_req6) /* get s,g pkt cnt */ 263 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 264 struct sioc_mif_req6) /* get pkt cnt per if */ 265 266 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 267 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 268 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 269 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 270 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 271 272 /* do not input/output */ 273 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 274 275 #ifdef _KERNEL 276 extern struct in6_ifaddr *in6_ifaddr; 277 extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 278 extern struct in6_addr zeroin6_addr; 279 extern u_char inet6ctlerrmap[]; 280 extern unsigned long in6_maxmtu; 281 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 282 #ifdef MALLOC_DECLARE 283 MALLOC_DECLARE(M_IPMADDR); 284 #endif /* MALLOC_DECLARE */ 285 #endif 286 287 /* 288 * Macro for finding the internet address structure (in6_ifaddr) corresponding 289 * to a given interface (ifnet structure). 290 */ 291 #define IFP_TO_IA6(ifp, ia) \ 292 /* struct ifnet *ifp; */ \ 293 /* struct in6_ifaddr *ia; */ \ 294 { \ 295 struct ifaddr *ifa; \ 296 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 297 if (!ifa->ifa_addr) \ 298 continue; \ 299 if (ifa->ifa_addr->sa_family == AF_INET6) \ 300 break; \ 301 } \ 302 (ia) = (struct in6_ifaddr *)ifa; \ 303 } 304 #endif /* _KERNEL */ 305 306 /* 307 * Multi-cast membership entry. One for each group/ifp that a PCB 308 * belongs to. 309 */ 310 struct in6_multi_mship { 311 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 312 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 313 }; 314 315 struct in6_multi { 316 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 317 struct in6_addr in6m_addr; /* IP6 multicast address */ 318 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 319 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 320 u_int in6m_refcount; /* # membership claims by sockets */ 321 u_int in6m_state; /* state of the membership */ 322 u_int in6m_timer; /* MLD6 listener report timer */ 323 }; 324 325 #ifdef _KERNEL 326 /* 327 * Structure used by macros below to remember position when stepping through 328 * all of eht in6_multi records. 329 */ 330 struct in6_multistep { 331 struct in6_ifaddr *i_ia; 332 struct in6_multi *i_in6m; 333 }; 334 335 /* 336 * Macros for looking up the in6_multi record for a given IP6 multicast 337 * address on a given interface. If no matching record is found, "in6m" 338 * returns NLL. 339 */ 340 341 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 342 /* struct in6_addr addr; */ \ 343 /* struct ifnet *ifp; */ \ 344 /* struct in6_multi *in6m; */ \ 345 { \ 346 register struct in6_ifaddr *ia; \ 347 \ 348 IFP_TO_IA6((ifp), ia); \ 349 if (ia == NULL) \ 350 (in6m) = NULL; \ 351 else \ 352 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 353 (in6m) != NULL && \ 354 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 355 (in6m) = in6m->in6m_entry.le_next) \ 356 continue; \ 357 } 358 359 /* 360 * Macro to step through all of the in6_multi records, one at a time. 361 * The current position is remembered in "step", which the caller must 362 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 363 * and get the first record. Both macros return a NULL "in6m" when there 364 * are no remaining records. 365 */ 366 #define IN6_NEXT_MULTI(step, in6m) \ 367 /* struct in6_multistep step; */ \ 368 /* struct in6_multi *in6m; */ \ 369 { \ 370 if (((in6m) = (step).i_in6m) != NULL) \ 371 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 372 else \ 373 while ((step).i_ia != NULL) { \ 374 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 375 (step).i_ia = (step).i_ia->ia_next; \ 376 if ((in6m) != NULL) { \ 377 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 378 break; \ 379 } \ 380 } \ 381 } 382 383 #define IN6_FIRST_MULTI(step, in6m) \ 384 /* struct in6_multistep step; */ \ 385 /* struct in6_multi *in6m */ \ 386 { \ 387 (step).i_ia = in6_ifaddr; \ 388 (step).i_in6m = NULL; \ 389 IN6_NEXT_MULTI((step), (in6m)); \ 390 } 391 392 int in6_ifinit __P((struct ifnet *, 393 struct in6_ifaddr *, struct sockaddr_in6 *, int)); 394 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 395 int *)); 396 void in6_delmulti __P((struct in6_multi *)); 397 void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); 398 extern int in6_mask2len __P((struct in6_addr *)); 399 extern void in6_len2mask __P((struct in6_addr *, int)); 400 #if defined(__NetBSD__) || (defined(__FreeBSD__) && __FreeBSD__ >= 3) 401 int in6_control __P((struct socket *, 402 u_long, caddr_t, struct ifnet *, struct proc *)); 403 #else 404 int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *)); 405 #endif 406 void in6_savemkludge __P((struct in6_ifaddr *)); 407 void in6_setmaxmtu __P((void)); 408 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 409 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *)); 410 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, 411 struct in6_addr *)); 412 char *ip6_sprintf __P((struct in6_addr *)); 413 int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 414 int in6_prefix_ioctl __P((u_long cmd, caddr_t data, struct ifnet *ifp)); 415 #endif /* _KERNEL */ 416 417 #endif /* _NETINET6_IN6_VAR_H_ */ 418
Indexes created Wed Sep 24 15:09:51 GMT 2025