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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/stream.h> 28 #define _SUN_TPI_VERSION 2 29 #include <sys/tihdr.h> 30 #include <sys/socket.h> 31 #include <sys/xti_xtiopt.h> 32 #include <sys/xti_inet.h> 33 34 #include <netinet/in.h> 35 #include <netinet/icmp6.h> 36 #include <inet/common.h> 37 #include <netinet/ip6.h> 38 #include <inet/ip.h> 39 /* 40 * MK_XXX Following 2 includes temporary to import ip6_rthdr_t 41 * definition. May not be needed if we fix ip6_dg_snd_attrs_t 42 * to do all extension headers in identical manner. 43 */ 44 #include <net/if.h> 45 #include <inet/ip6.h> 46 47 #include <netinet/tcp.h> 48 #include <netinet/ip_mroute.h> 49 #include <inet/optcom.h> 50 51 52 extern int icmp_opt_default(queue_t *, int, int, uchar_t *); 53 extern int icmp_tpi_opt_get(queue_t *, int, int, uchar_t *); 54 extern int icmp_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *, 55 uint_t *, uchar_t *, void *, cred_t *, mblk_t *); 56 57 /* 58 * Table of all known options handled on a ICMP protocol stack. 59 * 60 * Note: This table contains options processed by both ICMP and IP levels 61 * and is the superset of options that can be performed on a ICMP over IP 62 * stack. 63 */ 64 opdes_t icmp_opt_arr[] = { 65 66 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 67 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 68 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 69 }, 70 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 71 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 72 73 #ifdef SO_PROTOTYPE 74 /* 75 * icmp will only allow IPPROTO_ICMP for non-privileged streams 76 * that check is made on an adhoc basis. 77 */ 78 { SO_PROTOTYPE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 79 #endif 80 81 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 82 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 83 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 84 { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 85 sizeof (struct timeval), 0 }, 86 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 87 sizeof (struct timeval), 0 }, 88 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 89 0 }, 90 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 91 }, 92 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 93 0 }, 94 95 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 96 0 }, 97 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 98 99 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 100 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 101 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 102 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 103 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 104 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 105 106 { IP_HDRINCL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 107 sizeof (int), 0 }, 108 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 109 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 110 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 111 112 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 113 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 114 115 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 116 sizeof (uchar_t), -1 /* not initialized */}, 117 118 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 119 sizeof (uchar_t), -1 /* not initialized */ }, 120 121 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 122 sizeof (struct ip_mreq), -1 /* not initialized */ }, 123 124 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 125 sizeof (struct ip_mreq), 0 }, 126 127 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 128 sizeof (struct ip_mreq_source), -1 }, 129 130 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 131 sizeof (struct ip_mreq_source), -1 }, 132 133 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 134 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 135 136 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 137 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 138 139 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 140 sizeof (ipsec_req_t), -1 /* not initialized */ }, 141 142 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 143 sizeof (int), 0 /* no ifindex */ }, 144 145 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 146 sizeof (int), 0 }, 147 148 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 149 0 /* disabled */ }, 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_R, 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_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 227 sizeof (int), 0 }, 228 229 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 230 -1 }, 231 232 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN, 233 sizeof (icmp6_filter_t), 0 }, 234 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 235 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 236 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 237 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 238 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 239 sizeof (int), -1 /* not initialized */ }, 240 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 241 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 242 sizeof (sin6_t), -1 /* not initialized */ }, 243 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 244 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 245 MAX_EHDR_LEN, -1 /* not initialized */ }, 246 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 247 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 248 MAX_EHDR_LEN, -1 /* not initialized */ }, 249 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 250 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 251 MAX_EHDR_LEN, -1 /* not initialized */ }, 252 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 253 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 254 MAX_EHDR_LEN, -1 /* not initialized */ }, 255 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 256 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 257 sizeof (int), -1 /* not initialized */ }, 258 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 259 sizeof (struct ip6_mtuinfo), -1 }, 260 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 261 sizeof (int), 0 }, 262 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 263 sizeof (int), 0 }, 264 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 265 sizeof (int), 0 }, 266 267 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 268 sizeof (int), 0 }, 269 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 270 sizeof (int), 0 }, 271 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 272 sizeof (int), 0 }, 273 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 274 sizeof (int), 0 }, 275 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 276 sizeof (int), 0 }, 277 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 278 sizeof (int), 0 }, 279 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 280 sizeof (int), 0 }, 281 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 282 sizeof (int), 0 }, 283 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 284 sizeof (int), 0 }, 285 286 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 287 sizeof (ipsec_req_t), -1 /* not initialized */ }, 288 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 289 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 290 291 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 292 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 293 -1 /* not initialized */ }, 294 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 295 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 296 -1 /* not initialized */ }, 297 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 298 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 299 -1 /* not initialized */ }, 300 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 301 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 302 -1 /* not initialized */ }, 303 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 304 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 305 -1 /* not initialized */ }, 306 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 307 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 308 -1 /* not initialized */ }, 309 }; 310 311 /* 312 * Table of all supported levels 313 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 314 * any supported options so we need this info separately. 315 * 316 * This is needed only for topmost tpi providers and is used only by 317 * XTI interfaces. 318 */ 319 optlevel_t icmp_valid_levels_arr[] = { 320 XTI_GENERIC, 321 SOL_SOCKET, 322 IPPROTO_ICMP, 323 IPPROTO_IP, 324 IPPROTO_IPV6, 325 IPPROTO_ICMPV6 326 }; 327 328 #define ICMP_VALID_LEVELS_CNT A_CNT(icmp_valid_levels_arr) 329 #define ICMP_OPT_ARR_CNT A_CNT(icmp_opt_arr) 330 331 uint_t icmp_max_optsize; /* initialized when ICMP driver is loaded */ 332 333 /* 334 * Initialize option database object for ICMP 335 * 336 * This object represents database of options to search passed to 337 * {sock,tpi}optcom_req() interface routine to take care of option 338 * management and associated methods. 339 */ 340 341 optdb_obj_t icmp_opt_obj = { 342 icmp_opt_default, /* ICMP default value function pointer */ 343 icmp_tpi_opt_get, /* ICMP get function pointer */ 344 icmp_tpi_opt_set, /* ICMP set function pointer */ 345 B_TRUE, /* ICMP is tpi provider */ 346 ICMP_OPT_ARR_CNT, /* ICMP option database count of entries */ 347 icmp_opt_arr, /* ICMP option database */ 348 ICMP_VALID_LEVELS_CNT, /* ICMP valid level count of entries */ 349 icmp_valid_levels_arr /* ICMP valid level array */ 350 }; 351