[388] | 1 | /*
|
---|
| 2 | * TINET (TCP/IP Protocol Stack)
|
---|
| 3 | *
|
---|
| 4 | * Copyright (C) 2001-2017 by Dep. of Computer Science and Engineering
|
---|
| 5 | * Tomakomai National College of Technology, JAPAN
|
---|
| 6 | *
|
---|
| 7 | * ä¸è¨èä½æ¨©è
|
---|
| 8 | ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation
|
---|
| 9 | * ã«ãã£ã¦å
|
---|
| 10 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
|
---|
| 11 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
|
---|
| 12 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
|
---|
| 13 | å¸ï¼ä»¥ä¸ï¼
|
---|
| 14 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
|
---|
| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
|
---|
| 16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
|
---|
| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
|
---|
| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 19 | * ç¨ã§ããå½¢ã§åé
|
---|
| 20 | å¸ããå ´åã«ã¯ï¼åé
|
---|
| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
|
---|
| 22 | * è
|
---|
| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
|
---|
| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 26 | * ç¨ã§ããªãå½¢ã§åé
|
---|
| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼
|
---|
| 28 | * (a) åé
|
---|
| 29 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
|
---|
| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
|
---|
| 31 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 32 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
|
---|
| 33 | * 害ãããï¼ä¸è¨èä½æ¨©è
|
---|
| 34 | ããã³TOPPERSããã¸ã§ã¯ããå
|
---|
| 35 | 責ãããã¨ï¼
|
---|
| 36 | *
|
---|
| 37 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
|
---|
| 38 | ã
|
---|
| 39 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
|
---|
| 40 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
|
---|
| 41 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
|
---|
| 42 | *
|
---|
| 43 | * @(#) $Id: in6.c 388 2019-05-22 11:25:18Z coas-nagasima $
|
---|
| 44 | */
|
---|
| 45 |
|
---|
| 46 | /* $FreeBSD: src/sys/netinet6/in6.c,v 1.21 2002/04/19 04:46:22 suz Exp $ */
|
---|
| 47 | /* $KAME: in6.c,v 1.259 2002/01/21 11:37:50 keiichi Exp $ */
|
---|
| 48 |
|
---|
| 49 | /*
|
---|
| 50 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
---|
| 51 | * All rights reserved.
|
---|
| 52 | *
|
---|
| 53 | * Redistribution and use in source and binary forms, with or without
|
---|
| 54 | * modification, are permitted provided that the following conditions
|
---|
| 55 | * are met:
|
---|
| 56 | * 1. Redistributions of source code must retain the above copyright
|
---|
| 57 | * notice, this list of conditions and the following disclaimer.
|
---|
| 58 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
| 59 | * notice, this list of conditions and the following disclaimer in the
|
---|
| 60 | * documentation and/or other materials provided with the distribution.
|
---|
| 61 | * 3. Neither the name of the project nor the names of its contributors
|
---|
| 62 | * may be used to endorse or promote products derived from this software
|
---|
| 63 | * without specific prior written permission.
|
---|
| 64 | *
|
---|
| 65 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
---|
| 66 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
---|
| 67 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
---|
| 68 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
---|
| 69 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
---|
| 70 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
---|
| 71 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
| 72 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
---|
| 73 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
---|
| 74 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
| 75 | * SUCH DAMAGE.
|
---|
| 76 | */
|
---|
| 77 |
|
---|
| 78 | /*
|
---|
| 79 | * Copyright (c) 1982, 1986, 1991, 1993
|
---|
| 80 | * The Regents of the University of California. All rights reserved.
|
---|
| 81 | *
|
---|
| 82 | * Redistribution and use in source and binary forms, with or without
|
---|
| 83 | * modification, are permitted provided that the following conditions
|
---|
| 84 | * are met:
|
---|
| 85 | * 1. Redistributions of source code must retain the above copyright
|
---|
| 86 | * notice, this list of conditions and the following disclaimer.
|
---|
| 87 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
| 88 | * notice, this list of conditions and the following disclaimer in the
|
---|
| 89 | * documentation and/or other materials provided with the distribution.
|
---|
| 90 | * 3. All advertising materials mentioning features or use of this software
|
---|
| 91 | * must display the following acknowledgement:
|
---|
| 92 | * This product includes software developed by the University of
|
---|
| 93 | * California, Berkeley and its contributors.
|
---|
| 94 | * 4. Neither the name of the University nor the names of its contributors
|
---|
| 95 | * may be used to endorse or promote products derived from this software
|
---|
| 96 | * without specific prior written permission.
|
---|
| 97 | *
|
---|
| 98 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
---|
| 99 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
---|
| 100 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
---|
| 101 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
---|
| 102 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
---|
| 103 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
---|
| 104 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
| 105 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
---|
| 106 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
---|
| 107 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
| 108 | * SUCH DAMAGE.
|
---|
| 109 | *
|
---|
| 110 | * @(#)in.c 8.2 (Berkeley) 11/15/93
|
---|
| 111 | */
|
---|
| 112 |
|
---|
| 113 | #include <string.h>
|
---|
| 114 |
|
---|
| 115 | #ifdef TARGET_KERNEL_ASP
|
---|
| 116 |
|
---|
| 117 | #include <kernel.h>
|
---|
| 118 | #include <sil.h>
|
---|
| 119 |
|
---|
| 120 | #endif /* of #ifdef TARGET_KERNEL_ASP */
|
---|
| 121 |
|
---|
| 122 | #ifdef TARGET_KERNEL_JSP
|
---|
| 123 |
|
---|
| 124 | #include <s_services.h>
|
---|
| 125 | #include <t_services.h>
|
---|
| 126 | #include "kernel_id.h"
|
---|
| 127 |
|
---|
| 128 | #endif /* of #ifdef TARGET_KERNEL_JSP */
|
---|
| 129 |
|
---|
| 130 | #include <tinet_defs.h>
|
---|
| 131 | #include <tinet_config.h>
|
---|
| 132 |
|
---|
| 133 | #include <net/if.h>
|
---|
| 134 | #include <net/if_types.h>
|
---|
| 135 | #include <net/if_ppp.h>
|
---|
| 136 | #include <net/if_loop.h>
|
---|
| 137 | #include <net/ethernet.h>
|
---|
| 138 | #include <net/ppp_ipcp.h>
|
---|
| 139 | #include <net/net.h>
|
---|
| 140 | #include <net/net_endian.h>
|
---|
| 141 | #include <net/net_buf.h>
|
---|
| 142 | #include <net/net_timer.h>
|
---|
| 143 | #include <net/net_count.h>
|
---|
| 144 |
|
---|
| 145 | #include <netinet/in.h>
|
---|
| 146 | #include <netinet/in_var.h>
|
---|
| 147 |
|
---|
| 148 | #include <netinet6/in6.h>
|
---|
| 149 | #include <netinet6/in6_var.h>
|
---|
| 150 | #include <netinet6/nd6.h>
|
---|
| 151 | #include <netinet6/in6_ifattach.h>
|
---|
| 152 |
|
---|
| 153 | #include <net/if_var.h>
|
---|
| 154 |
|
---|
| 155 | #ifdef _IP6_CFG
|
---|
| 156 |
|
---|
| 157 | /*
|
---|
| 158 | * å
|
---|
| 159 | ¨åå¤æ°
|
---|
| 160 | */
|
---|
| 161 |
|
---|
| 162 | const T_IN6_ADDR in6_addr_unspecified =
|
---|
| 163 | IPV6_ADDR_UNSPECIFIED_INIT;
|
---|
| 164 |
|
---|
| 165 | const T_IN6_ADDR in6_addr_linklocal_allnodes =
|
---|
| 166 | IPV6_ADDR_LINKLOCAL_ALLNODES_INIT;
|
---|
| 167 |
|
---|
| 168 | const T_IN6_ADDR in6_addr_linklocal_allrouters =
|
---|
| 169 | IPV6_ADDR_LINKLOCAL_ALLROUTERS_INIT;
|
---|
| 170 |
|
---|
| 171 | /*
|
---|
| 172 | * in6_addmulti -- ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã
|
---|
| 173 | */
|
---|
| 174 |
|
---|
| 175 | static ER
|
---|
| 176 | in6_addmulti (T_IFNET *ifp, T_IN6_ADDR *maddr)
|
---|
| 177 | {
|
---|
| 178 | ER error = E_OK;
|
---|
| 179 |
|
---|
| 180 | if ((error = if_addmulti(ifp, maddr, AT_INET6)) != E_OK)
|
---|
| 181 | return error;
|
---|
| 182 |
|
---|
| 183 | return error;
|
---|
| 184 | }
|
---|
| 185 |
|
---|
| 186 | /*
|
---|
| 187 | * in6_ifinit -- ã¤ã³ã¿ãã§ã¼ã¹ã«ã¢ãã¬ã¹æ
|
---|
| 188 | å ±ãè¨å®ããåæåããã
|
---|
| 189 | */
|
---|
| 190 |
|
---|
| 191 | static ER
|
---|
| 192 | in6_ifinit (T_IFNET *ifp, T_IN6_IFADDR *ia, const T_IN6_ADDR *addr, uint_t prefix_len)
|
---|
| 193 | {
|
---|
| 194 | /* ã¢ãã¬ã¹ã¨ãã¬ãã£ãã¯ã¹é·ãè¨å®ããã*/
|
---|
| 195 | ia->addr = *addr;
|
---|
| 196 | ia->prefix_len = prefix_len;
|
---|
| 197 |
|
---|
| 198 | /* ãã©ã°ãåæåããã*/
|
---|
| 199 | ia->flags = 0;
|
---|
| 200 |
|
---|
| 201 | /*
|
---|
| 202 | * åãã¦ã¢ãã¬ã¹ãè¨å®ãããã¨ããã¤ã³ã¿ãã§ã¼ã¹ç¬èªã®åæåãè¡ãã
|
---|
| 203 | */
|
---|
| 204 |
|
---|
| 205 | return E_OK;
|
---|
| 206 | }
|
---|
| 207 |
|
---|
| 208 | /*
|
---|
| 209 | * in6_ifainit -- ã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ§é ä½ã®åæå
|
---|
| 210 | */
|
---|
| 211 |
|
---|
| 212 | void
|
---|
| 213 | in6_ifainit (void)
|
---|
| 214 | {
|
---|
| 215 | T_IN6_IFADDR *ia = NULL;
|
---|
| 216 | T_IFNET *ifp = IF_GET_IFNET();
|
---|
| 217 | int_t ix;
|
---|
| 218 |
|
---|
| 219 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 220 | ia = &ifp->in6_ifaddrs[ix];
|
---|
| 221 | memset(ia, sizeof(T_IN6_IFADDR), 0);
|
---|
| 222 | ia->router_index = IN6_RTR_IX_UNREACH;
|
---|
| 223 | ia->prefix_index = ND6_PREFIX_IX_INVALID;
|
---|
| 224 | }
|
---|
| 225 | }
|
---|
| 226 |
|
---|
| 227 | /*
|
---|
| 228 | * in6_if2idlen -- ã¤ã³ã¿ãã§ã¼ã¹ ID é·ãè¿ãã
|
---|
| 229 | */
|
---|
| 230 |
|
---|
| 231 | int_t
|
---|
| 232 | in6_if2idlen (T_IFNET *ifp)
|
---|
| 233 | {
|
---|
| 234 | #if IF_TYPE == IFT_ETHER
|
---|
| 235 | return 64;
|
---|
| 236 | #else
|
---|
| 237 | return 64;
|
---|
| 238 | #endif
|
---|
| 239 | }
|
---|
| 240 |
|
---|
| 241 | /*
|
---|
| 242 | * in6_addr2ifaix -- ã¢ãã¬ã¹ããã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ
|
---|
| 243 | å ±ã®ã¤ã³ããã¯ã¹ã«å¤æããã
|
---|
| 244 | */
|
---|
| 245 |
|
---|
| 246 | int_t
|
---|
| 247 | in6_addr2ifaix (const T_IN6_ADDR *addr)
|
---|
| 248 | {
|
---|
| 249 | T_IFNET *ifp = IF_GET_IFNET();
|
---|
| 250 | T_IN6_IFADDR *ia;
|
---|
| 251 | int_t ix;
|
---|
| 252 |
|
---|
| 253 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 254 | ia = &ifp->in6_ifaddrs[ix];
|
---|
| 255 | if ((ia->flags & IN6_IFF_DEFINED) != 0 &&
|
---|
| 256 | in6_are_prefix_equal(addr, &ia->addr, ia->prefix_len))
|
---|
| 257 | return ix;
|
---|
| 258 | }
|
---|
| 259 |
|
---|
| 260 | return IPV6_IFADDR_IX_INVALID;
|
---|
| 261 | }
|
---|
| 262 |
|
---|
| 263 | /*
|
---|
| 264 | * in6_addr2maix -- ã¢ãã¬ã¹ãããã«ããã£ã¹ãã¢ãã¬ã¹ã®ã¤ã³ããã¯ã¹ã«å¤æããã
|
---|
| 265 | */
|
---|
| 266 |
|
---|
| 267 | int_t
|
---|
| 268 | in6_addr2maix (const T_IN6_ADDR *addr)
|
---|
| 269 | {
|
---|
| 270 | if (addr->s6_addr8[0] == 0xff) {
|
---|
| 271 | if (addr->s6_addr8[1] == 0x02) {
|
---|
| 272 | if (addr->s6_addr8[11] == 0x01 && addr->s6_addr8[12] == 0xff)
|
---|
| 273 | return IPV6_MADDR_IX_SOL_NODE;
|
---|
| 274 | else
|
---|
| 275 | return IPV6_MADDR_IX_LL_ALL_NODE;
|
---|
| 276 | }
|
---|
| 277 | else
|
---|
| 278 | return IPV6_MADDR_IX_EXTRA;
|
---|
| 279 | }
|
---|
| 280 | else
|
---|
| 281 | return IPV6_MADDR_IX_EXTRA;
|
---|
| 282 | }
|
---|
| 283 |
|
---|
| 284 | /*
|
---|
| 285 | * in6_update_ifa -- ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹æ
|
---|
| 286 | å ±ãæ´æ°ããã
|
---|
| 287 | */
|
---|
| 288 |
|
---|
| 289 | ER
|
---|
| 290 | in6_update_ifa (T_IFNET *ifp, T_IN6_IFADDR *ia, const T_IN6_ADDR *addr,
|
---|
| 291 | uint_t prefix_len, uint32_t vltime, uint32_t pltime,
|
---|
| 292 | int_t router_index, int_t prefix_index, uint_t flags)
|
---|
| 293 | {
|
---|
| 294 | T_IN6_ADDR llsol;
|
---|
| 295 | ER error = E_OK;
|
---|
| 296 | SYSTIM now;
|
---|
| 297 |
|
---|
| 298 | /* å¼æ°ããã§ãã¯ããã*/
|
---|
| 299 | if (addr == NULL)
|
---|
| 300 | return E_PAR;
|
---|
| 301 |
|
---|
| 302 | /*
|
---|
| 303 | * æå¹æéããã§ãã¯ããã
|
---|
| 304 | * vltime (æå¹æé) 㨠pltime (æ¨å¥¨æå¹æé) ã®åä½ã¯ [s]ã
|
---|
| 305 | */
|
---|
| 306 | syscall(get_tim(&now));
|
---|
| 307 | now /= SYSTIM_HZ;
|
---|
| 308 |
|
---|
| 309 | if (((vltime != ND6_INFINITE_LIFETIME) && (vltime + now < now)) || vltime == 0)
|
---|
| 310 | return E_PAR;
|
---|
| 311 |
|
---|
| 312 | if ((pltime != ND6_INFINITE_LIFETIME) && (pltime + now < now))
|
---|
| 313 | return E_PAR;
|
---|
| 314 |
|
---|
| 315 | /* ã¤ã³ã¿ãã§ã¼ã¹ãåæåããã*/
|
---|
| 316 | if ((error = in6_ifinit(ifp, ia, addr, prefix_len)) != E_OK)
|
---|
| 317 | return error;
|
---|
| 318 |
|
---|
| 319 | if (IN6_IS_ADDR_LINKLOCAL(addr)) {
|
---|
| 320 |
|
---|
| 321 | /* è¦è«ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã*/
|
---|
| 322 | llsol.s6_addr32[0] = IPV6_ADDR_INT32_MLL;
|
---|
| 323 | llsol.s6_addr32[1] = 0x00000000;
|
---|
| 324 | llsol.s6_addr32[2] = IPV6_ADDR_INT32_ONE;
|
---|
| 325 | llsol.s6_addr32[3] = addr->s6_addr32[3];
|
---|
| 326 | llsol.s6_addr8[12] = 0xff;
|
---|
| 327 | if ((error = in6_addmulti(ifp, &llsol)) != E_OK)
|
---|
| 328 | return error;
|
---|
| 329 |
|
---|
| 330 | /* å
|
---|
| 331 | ¨ãã¼ãã»ãªã³ã¯ãã¼ã«ã«ã»ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã*/
|
---|
| 332 | llsol.s6_addr32[2] = 0x00000000;
|
---|
| 333 | llsol.s6_addr32[3] = IPV6_ADDR_INT32_ONE;
|
---|
| 334 | if ((error = in6_addmulti(ifp, &llsol)) != E_OK)
|
---|
| 335 | return error;
|
---|
| 336 |
|
---|
| 337 | }
|
---|
| 338 |
|
---|
| 339 | /* ã«ã¼ã¿ã¤ã³ããã¯ã¹ãè¨å®ããã*/
|
---|
| 340 | ia->router_index = router_index;
|
---|
| 341 |
|
---|
| 342 | /* ãã¬ãã£ãã¯ã¹ã¤ã³ããã¯ã¹ãè¨å®ããã*/
|
---|
| 343 | ia->prefix_index = prefix_index;
|
---|
| 344 |
|
---|
| 345 | /* ãã©ã°ãè¨å®ããã*/
|
---|
| 346 | ia->flags = flags & ~(IN6_IFF_DUPLICATED | IN6_IFF_NODAD);
|
---|
| 347 | ia->flags |= IN6_IFF_DEFINED;
|
---|
| 348 |
|
---|
| 349 | /*
|
---|
| 350 | * ã¢ãã¬ã¹æå¹æéãè¨å®ããã
|
---|
| 351 | * vltime (æå¹æé) 㨠pltime (æ¨å¥¨æå¹æé) ã®åä½ã¯ [s]ã
|
---|
| 352 | */
|
---|
| 353 | syscall(get_tim(&now));
|
---|
| 354 | now /= SYSTIM_HZ;
|
---|
| 355 |
|
---|
| 356 | ia->lifetime.vltime = vltime;
|
---|
| 357 | if (vltime != ND6_INFINITE_LIFETIME)
|
---|
| 358 | ia->lifetime.expire = now + vltime;
|
---|
| 359 | else
|
---|
| 360 | ia->lifetime.expire = 0;
|
---|
| 361 |
|
---|
| 362 | ia->lifetime.pltime = pltime;
|
---|
| 363 | if (pltime != ND6_INFINITE_LIFETIME)
|
---|
| 364 | ia->lifetime.preferred = now + pltime;
|
---|
| 365 | else
|
---|
| 366 | ia->lifetime.preferred = 0;
|
---|
| 367 |
|
---|
| 368 | /* è¿é£æ¢ç´¢ã®åæè¨å®ãè¡ãã*/
|
---|
| 369 | nd6_ifattach(ifp);
|
---|
| 370 |
|
---|
| 371 | /* éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã*/
|
---|
| 372 | if ((flags & IN6_IFF_NODAD) == 0) {
|
---|
| 373 | ia->flags |= IN6_IFF_TENTATIVE;
|
---|
| 374 | nd6_dad_start(ifp, ia, NULL);
|
---|
| 375 | }
|
---|
| 376 |
|
---|
| 377 | return error;
|
---|
| 378 | }
|
---|
| 379 |
|
---|
| 380 | /*
|
---|
| 381 | * in6ifa_ifpwithix -- ã¤ã³ããã¯ã¹çªå·ããããããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã«
|
---|
| 382 | * å²ãå½ã¦ããã¦ããã¢ãã¬ã¹ãæ¢ç´¢ããã
|
---|
| 383 | */
|
---|
| 384 |
|
---|
| 385 | T_IN6_IFADDR *
|
---|
| 386 | in6ifa_ifpwithix (T_IFNET *ifp, int_t ix)
|
---|
| 387 | {
|
---|
| 388 | return ix < NUM_IN6_IFADDR_ENTRY? &ifp->in6_ifaddrs[ix] : NULL;
|
---|
| 389 | }
|
---|
| 390 |
|
---|
| 391 | /*
|
---|
| 392 | * in6ifa_ifpwithrtrix -- ã«ã¼ã¿ã®ã¤ã³ããã¯ã¹çªå·ããããããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã«
|
---|
| 393 | * å²ãå½ã¦ããã¦ããã¢ãã¬ã¹ãæ¢ç´¢ããã
|
---|
| 394 | */
|
---|
| 395 |
|
---|
| 396 | T_IN6_IFADDR *
|
---|
| 397 | in6ifa_ifpwithrtrix (T_IFNET *ifp, int_t router_index)
|
---|
| 398 | {
|
---|
| 399 | int_t ix;
|
---|
| 400 |
|
---|
| 401 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; )
|
---|
| 402 | if (ifp->in6_ifaddrs[ix].router_index == router_index)
|
---|
| 403 | return &ifp->in6_ifaddrs[ix];
|
---|
| 404 | return NULL;
|
---|
| 405 | }
|
---|
| 406 |
|
---|
| 407 | /*
|
---|
| 408 | * in6_ifawithifp -- å®å
|
---|
| 409 | ã¢ãã¬ã¹ã«ãµããããéä¿¡å
|
---|
| 410 | ã¢ãã¬ã¹æ
|
---|
| 411 | å ±ãã
|
---|
| 412 | * ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ããæ¢ç´¢ããã
|
---|
| 413 | */
|
---|
| 414 |
|
---|
| 415 | T_IN6_IFADDR *
|
---|
| 416 | in6_ifawithifp (T_IFNET *ifp, const T_IN6_ADDR *dst)
|
---|
| 417 | {
|
---|
| 418 | uint_t scope;
|
---|
| 419 | int_t ix;
|
---|
| 420 |
|
---|
| 421 | /* å®å
|
---|
| 422 | ã¢ãã¬ã¹ã¨åãã¹ã³ã¼ãã®ã¢ãã¬ã¹ãè¿ãã*/
|
---|
| 423 | if ((ix = in6_addr2ifaix(dst)) != IPV6_IFADDR_IX_INVALID)
|
---|
| 424 | return &ifp->in6_ifaddrs[ix];
|
---|
| 425 | else if ((ix = in6_addr2maix(dst)) == IPV6_MADDR_IX_SOL_NODE ||
|
---|
| 426 | ix == IPV6_MADDR_IX_LL_ALL_NODE)
|
---|
| 427 | return &ifp->in6_ifaddrs[IPV6_IFADDR_IX_LINKLOCAL];
|
---|
| 428 | else {
|
---|
| 429 | scope = in6_addrscope(dst);
|
---|
| 430 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 431 | if ((ifp->in6_ifaddrs[ix].flags & IN6_IFF_DEFINED) &&
|
---|
| 432 | (ifp->in6_ifaddrs[ix].flags & IN6_IFF_DETACHED) == 0 &&
|
---|
| 433 | in6_addrscope(&ifp->in6_ifaddrs[ix].addr) == scope) {
|
---|
| 434 | return &ifp->in6_ifaddrs[ix];
|
---|
| 435 | }
|
---|
| 436 | }
|
---|
| 437 | return NULL;
|
---|
| 438 | }
|
---|
| 439 | }
|
---|
| 440 |
|
---|
| 441 | /*
|
---|
| 442 | * in6_addrwithifp -- å®å
|
---|
| 443 | ã¢ãã¬ã¹ã«ãµããããéä¿¡å
|
---|
| 444 | ã¢ãã¬ã¹ãã
|
---|
| 445 | * ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ããæ¢ç´¢ããã
|
---|
| 446 | */
|
---|
| 447 |
|
---|
| 448 | const T_IN6_ADDR *
|
---|
| 449 | in6_addrwithifp (T_IFNET *ifp, T_IN6_ADDR *src, const T_IN6_ADDR *dst)
|
---|
| 450 | {
|
---|
| 451 | T_IN6_IFADDR *ifaddr;
|
---|
| 452 |
|
---|
| 453 | if ((ifaddr = in6_ifawithifp(ifp, dst)) == NULL)
|
---|
| 454 | return NULL;
|
---|
| 455 | else {
|
---|
| 456 | *src = ifaddr->addr;
|
---|
| 457 | return src;
|
---|
| 458 | }
|
---|
| 459 | }
|
---|
| 460 |
|
---|
| 461 | /*
|
---|
| 462 | * in6_if_up -- ã¤ã³ã¿ãã§ã¼ã¹èµ·åå¾ã®éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã
|
---|
| 463 | */
|
---|
| 464 |
|
---|
| 465 | void
|
---|
| 466 | in6_if_up (T_IFNET *ifp)
|
---|
| 467 | {
|
---|
| 468 | #if 0 /* ä¿ç */
|
---|
| 469 | int_t dad_delay, ix;
|
---|
| 470 | #endif /* of #if 0 */
|
---|
| 471 |
|
---|
| 472 | in6_ifattach(ifp);
|
---|
| 473 |
|
---|
| 474 | #if 0 /* ä¿ç */
|
---|
| 475 | /* éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã*/
|
---|
| 476 | dad_delay = 0;
|
---|
| 477 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; )
|
---|
| 478 | if ((ifp->in6_ifaddrs[ix].flags & IN6_IFF_DEFINED) &&
|
---|
| 479 | (ifp->in6_ifaddrs[ix].flags & IN6_IFF_TENTATIVE))
|
---|
| 480 | nd6_dad_start(ifp, &ifp->in6_ifaddrs[ix], &dad_delay);
|
---|
| 481 | #endif /* of #if 0 */
|
---|
| 482 |
|
---|
| 483 | #if NUM_ND6_RTR_SOL_RETRY > 0
|
---|
| 484 |
|
---|
| 485 | /* ã«ã¼ã¿è¦è«ãåºåããã*/
|
---|
| 486 | nd6_rtrsol_ctl();
|
---|
| 487 |
|
---|
| 488 | #endif /* of #if NUM_ND6_RTR_SOL_RETRY > 0 */
|
---|
| 489 | }
|
---|
| 490 |
|
---|
| 491 | /*
|
---|
| 492 | * in6_are_prefix_equal -- ãã¬ãã£ãã¯ã¹ãåä¸ã調ã¹ãã
|
---|
| 493 | */
|
---|
| 494 |
|
---|
| 495 | bool_t
|
---|
| 496 | in6_are_prefix_equal (const T_IN6_ADDR *addr, const T_IN6_ADDR *prefix, uint_t prefix_len)
|
---|
| 497 | {
|
---|
| 498 | uint_t bitlen, bytelen;
|
---|
| 499 |
|
---|
| 500 | bytelen = prefix_len / 8;
|
---|
| 501 | if (memcmp(&addr->s6_addr, &prefix->s6_addr, bytelen))
|
---|
| 502 | return false;
|
---|
| 503 |
|
---|
| 504 | bitlen = prefix_len % 8;
|
---|
| 505 | if ( addr->s6_addr[bytelen] >> (8 - bitlen) !=
|
---|
| 506 | prefix->s6_addr[bytelen] >> (8 - bitlen))
|
---|
| 507 | return false;
|
---|
| 508 |
|
---|
| 509 | return true;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | /*
|
---|
| 513 | * in6_ifaddr_timer -- ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹ã®ç®¡çã¿ã¤ãã¼
|
---|
| 514 | */
|
---|
| 515 |
|
---|
| 516 | void
|
---|
| 517 | in6_ifaddr_timer (T_IFNET *ifp)
|
---|
| 518 | {
|
---|
| 519 | T_IN6_IFADDR *ia;
|
---|
| 520 | SYSTIM now;
|
---|
| 521 | int_t ix;
|
---|
| 522 |
|
---|
| 523 | syscall(get_tim(&now));
|
---|
| 524 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 525 | ia = &ifp->in6_ifaddrs[ix];
|
---|
| 526 |
|
---|
| 527 | if ((ia->flags & IN6_IFF_DEFINED) == 0)
|
---|
| 528 | ;
|
---|
| 529 | else if (IFA6_IS_INVALID(ia, now)) {
|
---|
| 530 |
|
---|
| 531 | /*
|
---|
| 532 | * æå¹æéãéããã®ã§åé¤ããã
|
---|
| 533 | */
|
---|
| 534 | ia->flags &= ~IN6_IFF_DEFINED;
|
---|
| 535 | }
|
---|
| 536 |
|
---|
| 537 | else if (IFA6_IS_DEPRECATED(ia, now)) {
|
---|
| 538 |
|
---|
| 539 | /*
|
---|
| 540 | * æ¨å¥¨æå¹æéãéããã®ã§éæ¨å¥¨ã«ããã
|
---|
| 541 | */
|
---|
| 542 | ia->flags |= IN6_IFF_DEPRECATED;
|
---|
| 543 | }
|
---|
| 544 | }
|
---|
| 545 | }
|
---|
| 546 |
|
---|
| 547 | #endif /* of #ifdef _IP6_CFG */
|
---|