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 89 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 90 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 91 40, -1 /* not initialized */ }, 92 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 93 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 94 40, -1 /* not initialized */ }, 95 96 { IP_HDRINCL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 97 sizeof (int), 0 }, 98 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 99 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 100 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 101 102 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 103 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 104 105 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 106 sizeof (uchar_t), -1 /* not initialized */}, 107 108 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 109 sizeof (uchar_t), -1 /* not initialized */ }, 110 111 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 112 sizeof (struct ip_mreq), -1 /* not initialized */ }, 113 114 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 115 sizeof (struct ip_mreq), 0 }, 116 117 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 118 sizeof (struct ip_mreq_source), -1 }, 119 120 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 121 sizeof (struct ip_mreq_source), -1 }, 122 123 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 124 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 125 126 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 127 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 }, 128 129 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 130 sizeof (ipsec_req_t), -1 /* not initialized */ }, 131 132 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 133 sizeof (int), 0 /* no ifindex */ }, 134 135 { IP_XMIT_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 136 sizeof (int), 0 /* no ifindex */ }, 137 138 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 139 sizeof (struct in_addr), 0 /* not initialized */ }, 140 141 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 142 sizeof (int), 0 }, 143 144 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 145 146 { IP_NEXTHOP, IPPROTO_IP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 147 sizeof (in_addr_t), -1 /* not initialized */ }, 148 149 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG, 150 (OP_PASSNEXT|OP_NODEFAULT), sizeof (int), 151 -1 /* not initialized */ }, 152 153 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG, 154 (OP_PASSNEXT|OP_NODEFAULT), 0, -1 /* not initialized */ }, 155 156 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 157 sizeof (struct vifctl), -1 /* not initialized */ }, 158 159 { MRT_DEL_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 160 sizeof (vifi_t), -1 /* not initialized */ }, 161 162 { MRT_ADD_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 163 sizeof (struct mfcctl), -1 /* not initialized */ }, 164 165 { MRT_DEL_MFC, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT), 166 sizeof (struct mfcctl), -1 /* not initialized */ }, 167 168 { MRT_VERSION, IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 169 sizeof (int), -1 /* not initialized */ }, 170 171 { MRT_ASSERT, IPPROTO_IP, 0, OA_RW, OP_CONFIG, 172 (OP_PASSNEXT|OP_NODEFAULT), 173 sizeof (int), -1 /* not initialized */ }, 174 175 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 176 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 177 -1 /* not initialized */ }, 178 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 179 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 180 -1 /* not initialized */ }, 181 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 182 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 183 -1 /* not initialized */ }, 184 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 185 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 186 -1 /* not initialized */ }, 187 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 188 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 189 -1 /* not initialized */ }, 190 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 191 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 192 -1 /* not initialized */ }, 193 194 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 195 sizeof (int), 0 }, 196 197 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 198 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 199 200 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 201 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 202 203 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 204 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 205 206 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 207 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 208 209 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 210 sizeof (int), -1 /* not initialized */ }, 211 212 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 213 sizeof (int), 0 /* no ifindex */ }, 214 215 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 216 sizeof (int), 0 /* no ifindex */ }, 217 218 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 219 sizeof (int), 0 /* no ifindex */ }, 220 221 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 222 sizeof (int), 0 }, 223 224 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 225 -1 }, 226 227 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN, 228 sizeof (icmp6_filter_t), 0 }, 229 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 230 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 231 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 232 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 233 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 234 sizeof (int), -1 /* not initialized */ }, 235 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 236 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 237 sizeof (sin6_t), -1 /* not initialized */ }, 238 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 239 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 240 MAX_EHDR_LEN, -1 /* not initialized */ }, 241 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 242 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 243 MAX_EHDR_LEN, -1 /* not initialized */ }, 244 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 245 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 246 MAX_EHDR_LEN, -1 /* not initialized */ }, 247 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 248 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 249 MAX_EHDR_LEN, -1 /* not initialized */ }, 250 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 251 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 252 sizeof (int), -1 /* not initialized */ }, 253 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 254 sizeof (struct ip6_mtuinfo), -1 }, 255 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 256 sizeof (int), 0 }, 257 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 258 sizeof (int), 0 }, 259 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 260 sizeof (int), 0 }, 261 262 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 263 sizeof (int), 0 }, 264 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 265 sizeof (int), 0 }, 266 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 267 sizeof (int), 0 }, 268 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 269 sizeof (int), 0 }, 270 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 271 sizeof (int), 0 }, 272 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 273 sizeof (int), 0 }, 274 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 275 sizeof (int), 0 }, 276 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 277 sizeof (int), 0 }, 278 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 279 sizeof (int), 0 }, 280 281 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 282 sizeof (ipsec_req_t), -1 /* not initialized */ }, 283 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 284 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 285 286 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 287 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 288 -1 /* not initialized */ }, 289 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 290 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 291 -1 /* not initialized */ }, 292 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 293 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 294 -1 /* not initialized */ }, 295 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 296 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 297 -1 /* not initialized */ }, 298 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 299 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 300 -1 /* not initialized */ }, 301 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 302 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 303 -1 /* not initialized */ }, 304 }; 305 306 /* 307 * Table of all supported levels 308 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 309 * any supported options so we need this info separately. 310 * 311 * This is needed only for topmost tpi providers and is used only by 312 * XTI interfaces. 313 */ 314 optlevel_t icmp_valid_levels_arr[] = { 315 XTI_GENERIC, 316 SOL_SOCKET, 317 IPPROTO_ICMP, 318 IPPROTO_IP, 319 IPPROTO_IPV6, 320 IPPROTO_ICMPV6 321 }; 322 323 #define ICMP_VALID_LEVELS_CNT A_CNT(icmp_valid_levels_arr) 324 #define ICMP_OPT_ARR_CNT A_CNT(icmp_opt_arr) 325 326 uint_t icmp_max_optsize; /* initialized when ICMP driver is loaded */ 327 328 /* 329 * Initialize option database object for ICMP 330 * 331 * This object represents database of options to search passed to 332 * {sock,tpi}optcom_req() interface routine to take care of option 333 * management and associated methods. 334 */ 335 336 optdb_obj_t icmp_opt_obj = { 337 icmp_opt_default, /* ICMP default value function pointer */ 338 icmp_opt_get, /* ICMP get function pointer */ 339 icmp_opt_set, /* ICMP set function pointer */ 340 B_TRUE, /* ICMP is tpi provider */ 341 ICMP_OPT_ARR_CNT, /* ICMP option database count of entries */ 342 icmp_opt_arr, /* ICMP option database */ 343 ICMP_VALID_LEVELS_CNT, /* ICMP valid level count of entries */ 344 icmp_valid_levels_arr /* ICMP valid level array */ 345 }; 346