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 91 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 92 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 93 40, -1 /* not initialized */ }, 94 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 95 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 96 40, -1 /* not initialized */ }, 97 98 { IP_HDRINCL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 99 sizeof (int), 0 }, 100 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 101 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 102 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 103 104 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 105 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 106 107 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 108 sizeof (uchar_t), -1 /* not initialized */}, 109 110 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 111 sizeof (uchar_t), -1 /* not initialized */ }, 112 113 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 114 sizeof (struct ip_mreq), -1 /* not initialized */ }, 115 116 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 117 sizeof (struct ip_mreq), 0 }, 118 119 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 120 sizeof (struct ip_mreq_source), -1 }, 121 122 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 123 sizeof (struct ip_mreq_source), -1 }, 124 125 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 126 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 127 128 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 129 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 130 131 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 132 sizeof (ipsec_req_t), -1 /* not initialized */ }, 133 134 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 135 sizeof (int), 0 /* no ifindex */ }, 136 137 { IP_XMIT_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 138 sizeof (int), 0 /* no ifindex */ }, 139 140 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 141 sizeof (struct in_addr), 0 /* not initialized */ }, 142 143 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 144 sizeof (int), 0 }, 145 146 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 147 148 { IP_NEXTHOP, IPPROTO_IP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 149 sizeof (in_addr_t), -1 /* not initialized */ }, 150 151 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG, 152 (OP_PASSNEXT|OP_NODEFAULT), sizeof (int), 153 -1 /* not initialized */ }, 154 155 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG, 156 (OP_PASSNEXT|OP_NODEFAULT), 0, -1 /* not initialized */ }, 157 158 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 159 sizeof (struct vifctl), -1 /* not initialized */ }, 160 161 { MRT_DEL_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 162 sizeof (vifi_t), -1 /* not initialized */ }, 163 164 { MRT_ADD_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 165 sizeof (struct mfcctl), -1 /* not initialized */ }, 166 167 { MRT_DEL_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 168 sizeof (struct mfcctl), -1 /* not initialized */ }, 169 170 { MRT_VERSION, IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 171 sizeof (int), -1 /* not initialized */ }, 172 173 { MRT_ASSERT, IPPROTO_IP, 0, OA_RW, OP_CONFIG, 174 (OP_PASSNEXT|OP_NODEFAULT), 175 sizeof (int), -1 /* not initialized */ }, 176 177 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 178 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 179 -1 /* not initialized */ }, 180 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 181 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 182 -1 /* not initialized */ }, 183 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 184 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 185 -1 /* not initialized */ }, 186 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 187 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 188 -1 /* not initialized */ }, 189 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 190 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 191 -1 /* not initialized */ }, 192 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 193 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 194 -1 /* not initialized */ }, 195 196 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 197 sizeof (int), 0 }, 198 199 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 200 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 201 202 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 203 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 204 205 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 206 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 207 208 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 209 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 210 211 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 212 sizeof (int), -1 /* not initialized */ }, 213 214 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 215 sizeof (int), 0 /* no ifindex */ }, 216 217 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 218 sizeof (int), 0 /* no ifindex */ }, 219 220 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 221 sizeof (int), 0 /* no ifindex */ }, 222 223 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 224 sizeof (int), 0 }, 225 226 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 227 -1 }, 228 229 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN, 230 sizeof (icmp6_filter_t), 0 }, 231 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 232 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 233 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 234 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 235 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 236 sizeof (int), -1 /* not initialized */ }, 237 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 238 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 239 sizeof (sin6_t), -1 /* not initialized */ }, 240 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 241 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 242 MAX_EHDR_LEN, -1 /* not initialized */ }, 243 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 244 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 245 MAX_EHDR_LEN, -1 /* not initialized */ }, 246 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 247 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 248 MAX_EHDR_LEN, -1 /* not initialized */ }, 249 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 250 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 251 MAX_EHDR_LEN, -1 /* not initialized */ }, 252 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 253 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 254 sizeof (int), -1 /* not initialized */ }, 255 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 256 sizeof (struct ip6_mtuinfo), -1 }, 257 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 258 sizeof (int), 0 }, 259 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 260 sizeof (int), 0 }, 261 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 262 sizeof (int), 0 }, 263 264 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 265 sizeof (int), 0 }, 266 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 267 sizeof (int), 0 }, 268 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 269 sizeof (int), 0 }, 270 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 271 sizeof (int), 0 }, 272 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 273 sizeof (int), 0 }, 274 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 275 sizeof (int), 0 }, 276 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 277 sizeof (int), 0 }, 278 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 279 sizeof (int), 0 }, 280 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 281 sizeof (int), 0 }, 282 283 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 284 sizeof (ipsec_req_t), -1 /* not initialized */ }, 285 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 286 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 287 288 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 289 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 290 -1 /* not initialized */ }, 291 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 292 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 293 -1 /* not initialized */ }, 294 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 295 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 296 -1 /* not initialized */ }, 297 { MCAST_UNBLOCK_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_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 301 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 302 -1 /* not initialized */ }, 303 { MCAST_LEAVE_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 }; 307 308 /* 309 * Table of all supported levels 310 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 311 * any supported options so we need this info separately. 312 * 313 * This is needed only for topmost tpi providers and is used only by 314 * XTI interfaces. 315 */ 316 optlevel_t icmp_valid_levels_arr[] = { 317 XTI_GENERIC, 318 SOL_SOCKET, 319 IPPROTO_ICMP, 320 IPPROTO_IP, 321 IPPROTO_IPV6, 322 IPPROTO_ICMPV6 323 }; 324 325 #define ICMP_VALID_LEVELS_CNT A_CNT(icmp_valid_levels_arr) 326 #define ICMP_OPT_ARR_CNT A_CNT(icmp_opt_arr) 327 328 uint_t icmp_max_optsize; /* initialized when ICMP driver is loaded */ 329 330 /* 331 * Initialize option database object for ICMP 332 * 333 * This object represents database of options to search passed to 334 * {sock,tpi}optcom_req() interface routine to take care of option 335 * management and associated methods. 336 */ 337 338 optdb_obj_t icmp_opt_obj = { 339 icmp_opt_default, /* ICMP default value function pointer */ 340 icmp_opt_get, /* ICMP get function pointer */ 341 icmp_opt_set, /* ICMP set function pointer */ 342 B_TRUE, /* ICMP is tpi provider */ 343 ICMP_OPT_ARR_CNT, /* ICMP option database count of entries */ 344 icmp_opt_arr, /* ICMP option database */ 345 ICMP_VALID_LEVELS_CNT, /* ICMP valid level count of entries */ 346 icmp_valid_levels_arr /* ICMP valid level array */ 347 }; 348