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 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 94 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 95 40, -1 /* not initialized */ }, 96 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 97 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 98 40, -1 /* not initialized */ }, 99 100 { IP_HDRINCL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 101 sizeof (int), 0 }, 102 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 103 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 104 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 105 106 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 107 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 108 109 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 110 sizeof (uchar_t), -1 /* not initialized */}, 111 112 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 113 sizeof (uchar_t), -1 /* not initialized */ }, 114 115 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 116 sizeof (struct ip_mreq), -1 /* not initialized */ }, 117 118 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 119 sizeof (struct ip_mreq), 0 }, 120 121 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 122 sizeof (struct ip_mreq_source), -1 }, 123 124 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 125 sizeof (struct ip_mreq_source), -1 }, 126 127 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 128 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 129 130 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 131 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 132 133 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 134 sizeof (ipsec_req_t), -1 /* not initialized */ }, 135 136 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 137 sizeof (int), 0 /* no ifindex */ }, 138 139 { IP_XMIT_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 140 sizeof (int), 0 /* no ifindex */ }, 141 142 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 143 sizeof (struct in_addr), 0 /* not initialized */ }, 144 145 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 146 sizeof (int), 0 }, 147 148 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 149 150 { IP_NEXTHOP, IPPROTO_IP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 151 sizeof (in_addr_t), -1 /* not initialized */ }, 152 153 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG, 154 (OP_PASSNEXT|OP_NODEFAULT), sizeof (int), 155 -1 /* not initialized */ }, 156 157 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG, 158 (OP_PASSNEXT|OP_NODEFAULT), 0, -1 /* not initialized */ }, 159 160 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 161 sizeof (struct vifctl), -1 /* not initialized */ }, 162 163 { MRT_DEL_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 164 sizeof (vifi_t), -1 /* not initialized */ }, 165 166 { MRT_ADD_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 167 sizeof (struct mfcctl), -1 /* not initialized */ }, 168 169 { MRT_DEL_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 170 sizeof (struct mfcctl), -1 /* not initialized */ }, 171 172 { MRT_VERSION, IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 173 sizeof (int), -1 /* not initialized */ }, 174 175 { MRT_ASSERT, IPPROTO_IP, 0, OA_RW, OP_CONFIG, 176 (OP_PASSNEXT|OP_NODEFAULT), 177 sizeof (int), -1 /* not initialized */ }, 178 179 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 180 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 181 -1 /* not initialized */ }, 182 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 183 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 184 -1 /* not initialized */ }, 185 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 186 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 187 -1 /* not initialized */ }, 188 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 189 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 190 -1 /* not initialized */ }, 191 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 192 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 193 -1 /* not initialized */ }, 194 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 195 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 196 -1 /* not initialized */ }, 197 198 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 199 sizeof (int), 0 }, 200 201 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 202 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 203 204 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 205 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 206 207 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 208 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 209 210 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 211 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 212 213 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 214 sizeof (int), -1 /* not initialized */ }, 215 216 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 217 sizeof (int), 0 /* no ifindex */ }, 218 219 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 220 sizeof (int), 0 /* no ifindex */ }, 221 222 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 223 sizeof (int), 0 /* no ifindex */ }, 224 225 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 226 sizeof (int), 0 }, 227 228 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 229 -1 }, 230 231 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN, 232 sizeof (icmp6_filter_t), 0 }, 233 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 234 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 235 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 236 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 237 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 238 sizeof (int), -1 /* not initialized */ }, 239 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 240 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 241 sizeof (sin6_t), -1 /* not initialized */ }, 242 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 243 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 244 MAX_EHDR_LEN, -1 /* not initialized */ }, 245 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 246 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 247 MAX_EHDR_LEN, -1 /* not initialized */ }, 248 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 249 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 250 MAX_EHDR_LEN, -1 /* not initialized */ }, 251 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 252 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 253 MAX_EHDR_LEN, -1 /* not initialized */ }, 254 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 255 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 256 sizeof (int), -1 /* not initialized */ }, 257 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 258 sizeof (struct ip6_mtuinfo), -1 }, 259 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 260 sizeof (int), 0 }, 261 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 262 sizeof (int), 0 }, 263 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 264 sizeof (int), 0 }, 265 266 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 267 sizeof (int), 0 }, 268 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 269 sizeof (int), 0 }, 270 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 271 sizeof (int), 0 }, 272 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 273 sizeof (int), 0 }, 274 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 275 sizeof (int), 0 }, 276 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 277 sizeof (int), 0 }, 278 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 279 sizeof (int), 0 }, 280 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 281 sizeof (int), 0 }, 282 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 283 sizeof (int), 0 }, 284 285 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 286 sizeof (ipsec_req_t), -1 /* not initialized */ }, 287 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 288 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 289 290 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 291 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 292 -1 /* not initialized */ }, 293 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 294 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 295 -1 /* not initialized */ }, 296 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 297 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 298 -1 /* not initialized */ }, 299 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 300 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 301 -1 /* not initialized */ }, 302 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 303 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 304 -1 /* not initialized */ }, 305 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 306 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 307 -1 /* not initialized */ }, 308 }; 309 310 /* 311 * Table of all supported levels 312 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 313 * any supported options so we need this info separately. 314 * 315 * This is needed only for topmost tpi providers and is used only by 316 * XTI interfaces. 317 */ 318 optlevel_t icmp_valid_levels_arr[] = { 319 XTI_GENERIC, 320 SOL_SOCKET, 321 IPPROTO_ICMP, 322 IPPROTO_IP, 323 IPPROTO_IPV6, 324 IPPROTO_ICMPV6 325 }; 326 327 #define ICMP_VALID_LEVELS_CNT A_CNT(icmp_valid_levels_arr) 328 #define ICMP_OPT_ARR_CNT A_CNT(icmp_opt_arr) 329 330 uint_t icmp_max_optsize; /* initialized when ICMP driver is loaded */ 331 332 /* 333 * Initialize option database object for ICMP 334 * 335 * This object represents database of options to search passed to 336 * {sock,tpi}optcom_req() interface routine to take care of option 337 * management and associated methods. 338 */ 339 340 optdb_obj_t icmp_opt_obj = { 341 icmp_opt_default, /* ICMP default value function pointer */ 342 icmp_opt_get, /* ICMP get function pointer */ 343 icmp_opt_set, /* ICMP set function pointer */ 344 B_TRUE, /* ICMP is tpi provider */ 345 ICMP_OPT_ARR_CNT, /* ICMP option database count of entries */ 346 icmp_opt_arr, /* ICMP option database */ 347 ICMP_VALID_LEVELS_CNT, /* ICMP valid level count of entries */ 348 icmp_valid_levels_arr /* ICMP valid level array */ 349 }; 350