1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/stream.h> 30 #define _SUN_TPI_VERSION 2 31 #include <sys/tihdr.h> 32 #include <sys/socket.h> 33 #include <sys/xti_xtiopt.h> 34 #include <sys/xti_inet.h> 35 36 #include <netinet/in.h> 37 #include <netinet/icmp6.h> 38 #include <inet/common.h> 39 #include <netinet/ip6.h> 40 #include <inet/ip.h> 41 /* 42 * MK_XXX Following 2 includes temporary to import ip6_rthdr_t 43 * definition. May not be needed if we fix ip6_dg_snd_attrs_t 44 * to do all extension headers in identical manner. 45 */ 46 #include <net/if.h> 47 #include <inet/ip6.h> 48 49 #include <netinet/tcp.h> 50 #include <netinet/ip_mroute.h> 51 #include <inet/optcom.h> 52 53 54 extern int icmp_opt_default(queue_t *, int, int, uchar_t *); 55 extern int icmp_opt_get(queue_t *, int, int, uchar_t *); 56 extern int icmp_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *, 57 uint_t *, uchar_t *, void *, cred_t *, mblk_t *); 58 59 /* 60 * Table of all known options handled on a ICMP protocol stack. 61 * 62 * Note: This table contains options processed by both ICMP and IP levels 63 * and is the superset of options that can be performed on a ICMP over IP 64 * stack. 65 */ 66 opdes_t icmp_opt_arr[] = { 67 68 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 69 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 70 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 71 }, 72 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 73 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 74 75 #ifdef SO_PROTOTYPE 76 /* 77 * icmp will only allow IPPROTO_ICMP for non-privileged streams 78 * that check is made on an adhoc basis. 79 */ 80 { SO_PROTOTYPE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 81 #endif 82 83 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 84 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 85 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 86 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 87 0 }, 88 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 89 }, 90 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 91 0 }, 92 93 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 94 0 }, 95 96 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 97 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 98 40, -1 /* not initialized */ }, 99 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 100 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 101 40, -1 /* not initialized */ }, 102 103 { IP_HDRINCL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 104 sizeof (int), 0 }, 105 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 106 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 107 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 108 109 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 110 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 111 112 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 113 sizeof (uchar_t), -1 /* not initialized */}, 114 115 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 116 sizeof (uchar_t), -1 /* not initialized */ }, 117 118 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 119 sizeof (struct ip_mreq), -1 /* not initialized */ }, 120 121 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 122 sizeof (struct ip_mreq), 0 }, 123 124 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 125 sizeof (struct ip_mreq_source), -1 }, 126 127 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 128 sizeof (struct ip_mreq_source), -1 }, 129 130 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 131 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 132 133 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 134 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 135 136 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 137 sizeof (ipsec_req_t), -1 /* not initialized */ }, 138 139 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 140 sizeof (int), 0 /* no ifindex */ }, 141 142 { IP_XMIT_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 143 sizeof (int), 0 /* no ifindex */ }, 144 145 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 146 sizeof (struct in_addr), 0 /* not initialized */ }, 147 148 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 149 sizeof (int), 0 }, 150 151 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 152 153 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 154 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 155 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 156 157 { IP_NEXTHOP, IPPROTO_IP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 158 sizeof (in_addr_t), -1 /* not initialized */ }, 159 160 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG, 161 (OP_PASSNEXT|OP_NODEFAULT), sizeof (int), 162 -1 /* not initialized */ }, 163 164 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG, 165 (OP_PASSNEXT|OP_NODEFAULT), 0, -1 /* not initialized */ }, 166 167 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 168 sizeof (struct vifctl), -1 /* not initialized */ }, 169 170 { MRT_DEL_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 171 sizeof (vifi_t), -1 /* not initialized */ }, 172 173 { MRT_ADD_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 174 sizeof (struct mfcctl), -1 /* not initialized */ }, 175 176 { MRT_DEL_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 177 sizeof (struct mfcctl), -1 /* not initialized */ }, 178 179 { MRT_VERSION, IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 180 sizeof (int), -1 /* not initialized */ }, 181 182 { MRT_ASSERT, IPPROTO_IP, 0, OA_RW, OP_CONFIG, 183 (OP_PASSNEXT|OP_NODEFAULT), 184 sizeof (int), -1 /* not initialized */ }, 185 186 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 187 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 188 -1 /* not initialized */ }, 189 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 190 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 191 -1 /* not initialized */ }, 192 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 193 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 194 -1 /* not initialized */ }, 195 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 196 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 197 -1 /* not initialized */ }, 198 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 199 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 200 -1 /* not initialized */ }, 201 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 202 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 203 -1 /* not initialized */ }, 204 205 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 206 sizeof (int), 0 }, 207 208 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 209 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 210 211 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 212 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 213 214 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 215 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 216 217 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 218 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 219 220 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 221 sizeof (int), -1 /* not initialized */ }, 222 223 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 224 sizeof (int), 0 /* no ifindex */ }, 225 226 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 227 sizeof (int), 0 /* no ifindex */ }, 228 229 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 230 sizeof (int), 0 /* no ifindex */ }, 231 232 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 233 sizeof (int), 0 }, 234 235 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 236 -1 }, 237 238 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN, 239 sizeof (icmp6_filter_t), 0 }, 240 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 241 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 242 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 243 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 244 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 245 sizeof (int), -1 /* not initialized */ }, 246 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 247 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 248 sizeof (sin6_t), -1 /* not initialized */ }, 249 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 250 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 251 MAX_EHDR_LEN, -1 /* not initialized */ }, 252 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 253 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 254 MAX_EHDR_LEN, -1 /* not initialized */ }, 255 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 256 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 257 MAX_EHDR_LEN, -1 /* not initialized */ }, 258 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 259 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 260 MAX_EHDR_LEN, -1 /* not initialized */ }, 261 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 262 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 263 sizeof (int), -1 /* not initialized */ }, 264 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 265 sizeof (struct ip6_mtuinfo), -1 }, 266 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 267 sizeof (int), 0 }, 268 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 269 sizeof (int), 0 }, 270 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 271 sizeof (int), 0 }, 272 273 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 274 sizeof (int), 0 }, 275 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 276 sizeof (int), 0 }, 277 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 278 sizeof (int), 0 }, 279 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 280 sizeof (int), 0 }, 281 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 282 sizeof (int), 0 }, 283 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 284 sizeof (int), 0 }, 285 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 286 sizeof (int), 0 }, 287 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 288 sizeof (int), 0 }, 289 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 290 sizeof (int), 0 }, 291 292 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 293 sizeof (ipsec_req_t), -1 /* not initialized */ }, 294 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 295 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 296 297 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 298 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 299 -1 /* not initialized */ }, 300 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 301 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 302 -1 /* not initialized */ }, 303 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 304 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 305 -1 /* not initialized */ }, 306 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 307 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 308 -1 /* not initialized */ }, 309 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 310 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 311 -1 /* not initialized */ }, 312 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 313 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 314 -1 /* not initialized */ }, 315 }; 316 317 /* 318 * Table of all supported levels 319 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 320 * any supported options so we need this info separately. 321 * 322 * This is needed only for topmost tpi providers and is used only by 323 * XTI interfaces. 324 */ 325 optlevel_t icmp_valid_levels_arr[] = { 326 XTI_GENERIC, 327 SOL_SOCKET, 328 IPPROTO_ICMP, 329 IPPROTO_IP, 330 IPPROTO_IPV6, 331 IPPROTO_ICMPV6 332 }; 333 334 #define ICMP_VALID_LEVELS_CNT A_CNT(icmp_valid_levels_arr) 335 #define ICMP_OPT_ARR_CNT A_CNT(icmp_opt_arr) 336 337 uint_t icmp_max_optsize; /* initialized when ICMP driver is loaded */ 338 339 /* 340 * Initialize option database object for ICMP 341 * 342 * This object represents database of options to search passed to 343 * {sock,tpi}optcom_req() interface routine to take care of option 344 * management and associated methods. 345 */ 346 347 optdb_obj_t icmp_opt_obj = { 348 icmp_opt_default, /* ICMP default value function pointer */ 349 icmp_opt_get, /* ICMP get function pointer */ 350 icmp_opt_set, /* ICMP set function pointer */ 351 B_TRUE, /* ICMP is tpi provider */ 352 ICMP_OPT_ARR_CNT, /* ICMP option database count of entries */ 353 icmp_opt_arr, /* ICMP option database */ 354 ICMP_VALID_LEVELS_CNT, /* ICMP valid level count of entries */ 355 icmp_valid_levels_arr /* ICMP valid level array */ 356 }; 357