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 <inet/common.h> 35 #include <netinet/ip6.h> 36 #include <inet/ip.h> 37 #include <inet/udp_impl.h> 38 /* 39 * MK_XXX Following 2 includes temporary to import ip6_rthdr_t 40 * definition. May not be needed if we fix ip6_dg_snd_attrs_t 41 * to do all extension headers in identical manner. 42 */ 43 #include <net/if.h> 44 #include <inet/ip6.h> 45 46 #include <netinet/in.h> 47 #include <netinet/udp.h> 48 #include <inet/optcom.h> 49 50 /* 51 * Table of all known options handled on a UDP protocol stack. 52 * 53 * Note: This table contains options processed by both UDP and IP levels 54 * and is the superset of options that can be performed on a UDP over IP 55 * stack. 56 */ 57 opdes_t udp_opt_arr[] = { 58 59 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 60 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 61 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 62 }, 63 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 64 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 65 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 66 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 67 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 68 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 69 0 }, 70 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 71 }, 72 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 73 0 }, 74 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 75 }, 76 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 77 0 }, 78 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 79 0 }, 80 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT, 512, 0 }, 81 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 82 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 83 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 84 85 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 86 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 87 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 88 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 89 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 90 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 91 92 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 93 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 94 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 95 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 96 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 97 }, 98 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 99 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 100 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 101 0 }, 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), -1 /* not initialized */ }, 116 117 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 118 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 119 120 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 121 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 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_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 136 sizeof (int), 0 }, 137 138 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 139 sizeof (int), 0 }, 140 141 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 142 0 /* disabled */ }, 143 144 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 145 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 146 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 147 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 148 sizeof (in_addr_t), -1 /* not initialized */ }, 149 150 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 151 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 152 -1 /* not initialized */ }, 153 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 154 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 155 -1 /* not initialized */ }, 156 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 157 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 158 -1 /* not initialized */ }, 159 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 160 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 161 -1 /* not initialized */ }, 162 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 163 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 164 -1 /* not initialized */ }, 165 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 166 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 167 -1 /* not initialized */ }, 168 169 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 170 sizeof (int), 0 }, 171 172 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 173 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 174 175 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 176 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 177 178 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 179 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 180 181 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 182 (OP_PASSNEXT|OP_NODEFAULT), 183 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 184 185 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 186 sizeof (int), -1 /* not initialized */ }, 187 188 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 189 sizeof (int), 0 /* no ifindex */ }, 190 191 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 192 sizeof (int), 0 }, 193 194 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 195 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 196 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 197 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 198 (OP_PASSNEXT|OP_NODEFAULT), 199 sizeof (int), -1 /* not initialized */ }, 200 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 201 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 202 sizeof (sin6_t), -1 /* not initialized */ }, 203 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 204 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 205 MAX_EHDR_LEN, -1 /* not initialized */ }, 206 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 207 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 208 MAX_EHDR_LEN, -1 /* not initialized */ }, 209 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 210 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 211 MAX_EHDR_LEN, -1 /* not initialized */ }, 212 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 213 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 214 MAX_EHDR_LEN, -1 /* not initialized */ }, 215 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 216 (OP_PASSNEXT|OP_NODEFAULT), 217 sizeof (int), -1 /* not initialized */ }, 218 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 219 (OP_PASSNEXT|OP_NODEFAULT), 220 sizeof (int), -1 /* not initialized */ }, 221 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 222 sizeof (int), 0 }, 223 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 224 sizeof (int), 0 }, 225 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 226 sizeof (int), 0 }, 227 228 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 229 sizeof (int), 0 }, 230 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 231 sizeof (int), 0 }, 232 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 233 sizeof (int), 0 }, 234 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 235 sizeof (int), 0 }, 236 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 237 sizeof (int), 0 }, 238 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 239 sizeof (int), 0 }, 240 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 241 sizeof (int), 0 }, 242 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 243 OP_PASSNEXT, sizeof (int), 0 }, 244 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 245 sizeof (int), 0 }, 246 247 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 248 sizeof (ipsec_req_t), -1 /* not initialized */ }, 249 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 250 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 251 252 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 253 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 254 -1 /* not initialized */ }, 255 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 256 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 257 -1 /* not initialized */ }, 258 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 259 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 260 -1 /* not initialized */ }, 261 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 262 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 263 -1 /* not initialized */ }, 264 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 265 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 266 -1 /* not initialized */ }, 267 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 268 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 269 -1 /* not initialized */ }, 270 271 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 272 sizeof (int), 0 }, 273 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 274 }, 275 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 276 }, 277 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int), 278 0 }, 279 }; 280 281 /* 282 * Table of all supported levels 283 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 284 * any supported options so we need this info separately. 285 * 286 * This is needed only for topmost tpi providers and is used only by 287 * XTI interfaces. 288 */ 289 optlevel_t udp_valid_levels_arr[] = { 290 XTI_GENERIC, 291 SOL_SOCKET, 292 IPPROTO_UDP, 293 IPPROTO_IP, 294 IPPROTO_IPV6 295 }; 296 297 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr) 298 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr) 299 300 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */ 301 302 /* 303 * Initialize option database object for UDP 304 * 305 * This object represents database of options to search passed to 306 * {sock,tpi}optcom_req() interface routine to take care of option 307 * management and associated methods. 308 */ 309 310 optdb_obj_t udp_opt_obj = { 311 udp_opt_default, /* UDP default value function pointer */ 312 udp_tpi_opt_get, /* UDP get function pointer */ 313 udp_tpi_opt_set, /* UDP set function pointer */ 314 B_TRUE, /* UDP is tpi provider */ 315 UDP_OPT_ARR_CNT, /* UDP option database count of entries */ 316 udp_opt_arr, /* UDP option database */ 317 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */ 318 udp_valid_levels_arr /* UDP valid level array */ 319 }; 320