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_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 69 sizeof (struct timeval), 0 }, 70 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 71 sizeof (struct timeval), 0 }, 72 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 73 0 }, 74 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 75 }, 76 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 77 0 }, 78 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 79 }, 80 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 81 0 }, 82 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 83 0 }, 84 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT, 512, 0 }, 85 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 86 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 87 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 88 89 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 90 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 91 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 92 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 93 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 94 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 95 96 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 97 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 98 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 99 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 100 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 101 }, 102 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 103 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 104 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 105 0 }, 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), -1 /* not initialized */ }, 120 121 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 122 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 123 124 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 125 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 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_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 140 sizeof (int), 0 }, 141 142 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 143 sizeof (int), 0 }, 144 145 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 146 0 /* disabled */ }, 147 148 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 149 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 150 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 151 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 152 sizeof (in_addr_t), -1 /* not initialized */ }, 153 154 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 155 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 156 -1 /* not initialized */ }, 157 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 158 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 159 -1 /* not initialized */ }, 160 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 161 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 162 -1 /* not initialized */ }, 163 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 164 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 165 -1 /* not initialized */ }, 166 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 167 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 168 -1 /* not initialized */ }, 169 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 170 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 171 -1 /* not initialized */ }, 172 173 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 174 sizeof (int), 0 }, 175 176 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 177 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 178 179 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 180 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */}, 181 182 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 183 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 184 185 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 186 (OP_PASSNEXT|OP_NODEFAULT), 187 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 188 189 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 190 sizeof (int), -1 /* not initialized */ }, 191 192 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 193 sizeof (int), 0 /* no ifindex */ }, 194 195 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 196 sizeof (int), 0 }, 197 198 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 199 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 200 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 201 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 202 (OP_PASSNEXT|OP_NODEFAULT), 203 sizeof (int), -1 /* not initialized */ }, 204 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 205 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 206 sizeof (sin6_t), -1 /* not initialized */ }, 207 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 208 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 209 MAX_EHDR_LEN, -1 /* not initialized */ }, 210 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 211 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 212 MAX_EHDR_LEN, -1 /* not initialized */ }, 213 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 214 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 215 MAX_EHDR_LEN, -1 /* not initialized */ }, 216 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 217 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 218 MAX_EHDR_LEN, -1 /* not initialized */ }, 219 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 220 (OP_PASSNEXT|OP_NODEFAULT), 221 sizeof (int), -1 /* not initialized */ }, 222 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 223 (OP_PASSNEXT|OP_NODEFAULT), 224 sizeof (int), -1 /* not initialized */ }, 225 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 226 sizeof (int), 0 }, 227 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 228 sizeof (int), 0 }, 229 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 230 sizeof (int), 0 }, 231 232 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 233 sizeof (int), 0 }, 234 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 235 sizeof (int), 0 }, 236 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 237 sizeof (int), 0 }, 238 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 239 sizeof (int), 0 }, 240 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 241 sizeof (int), 0 }, 242 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 243 sizeof (int), 0 }, 244 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 245 sizeof (int), 0 }, 246 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 247 OP_PASSNEXT, sizeof (int), 0 }, 248 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 249 sizeof (int), 0 }, 250 251 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 252 sizeof (ipsec_req_t), -1 /* not initialized */ }, 253 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 254 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 255 256 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 257 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 258 -1 /* not initialized */ }, 259 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 260 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req), 261 -1 /* not initialized */ }, 262 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 263 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 264 -1 /* not initialized */ }, 265 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 266 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 267 -1 /* not initialized */ }, 268 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 269 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 270 -1 /* not initialized */ }, 271 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 272 (OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req), 273 -1 /* not initialized */ }, 274 275 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 276 sizeof (int), 0 }, 277 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 278 }, 279 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 280 }, 281 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int), 282 0 }, 283 }; 284 285 /* 286 * Table of all supported levels 287 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 288 * any supported options so we need this info separately. 289 * 290 * This is needed only for topmost tpi providers and is used only by 291 * XTI interfaces. 292 */ 293 optlevel_t udp_valid_levels_arr[] = { 294 XTI_GENERIC, 295 SOL_SOCKET, 296 IPPROTO_UDP, 297 IPPROTO_IP, 298 IPPROTO_IPV6 299 }; 300 301 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr) 302 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr) 303 304 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */ 305 306 /* 307 * Initialize option database object for UDP 308 * 309 * This object represents database of options to search passed to 310 * {sock,tpi}optcom_req() interface routine to take care of option 311 * management and associated methods. 312 */ 313 314 optdb_obj_t udp_opt_obj = { 315 udp_opt_default, /* UDP default value function pointer */ 316 udp_tpi_opt_get, /* UDP get function pointer */ 317 udp_tpi_opt_set, /* UDP set function pointer */ 318 B_TRUE, /* UDP is tpi provider */ 319 UDP_OPT_ARR_CNT, /* UDP option database count of entries */ 320 udp_opt_arr, /* UDP option database */ 321 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */ 322 udp_valid_levels_arr /* UDP valid level array */ 323 }; 324