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, 0, sizeof (int), 0 }, 60 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 61 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 62 }, 63 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 64 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 65 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 66 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 67 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 68 { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 69 sizeof (struct timeval), 0 }, 70 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 71 sizeof (struct timeval), 0 }, 72 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 73 0 }, 74 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 75 }, 76 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 77 0 }, 78 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 79 }, 80 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 81 0 }, 82 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 83 0 }, 84 { SO_MAC_IMPLICIT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 85 0 }, 86 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT, 512, 0 }, 87 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 88 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 89 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 90 91 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 92 (OP_VARLEN|OP_NODEFAULT), 93 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 94 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 95 (OP_VARLEN|OP_NODEFAULT), 96 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 97 98 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 99 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 100 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 101 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 102 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 103 }, 104 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 105 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 106 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 107 0 }, 108 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 109 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 110 111 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 112 sizeof (uchar_t), -1 /* not initialized */}, 113 114 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 115 sizeof (uchar_t), -1 /* not initialized */ }, 116 117 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 118 sizeof (struct ip_mreq), -1 /* not initialized */ }, 119 120 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 121 sizeof (struct ip_mreq), -1 /* not initialized */ }, 122 123 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 124 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 125 126 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 127 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 128 129 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 130 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 131 132 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 133 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 134 135 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 136 sizeof (ipsec_req_t), -1 /* not initialized */ }, 137 138 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 139 sizeof (int), 0 /* no ifindex */ }, 140 141 { IP_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 142 sizeof (int), 0 }, 143 144 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, 145 sizeof (int), 0 }, 146 147 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 148 0 /* disabled */ }, 149 150 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 151 (OP_NODEFAULT|OP_VARLEN), 152 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 153 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 154 sizeof (in_addr_t), -1 /* not initialized */ }, 155 156 { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 157 158 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 159 OP_NODEFAULT, sizeof (struct group_req), 160 -1 /* not initialized */ }, 161 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 162 OP_NODEFAULT, sizeof (struct group_req), 163 -1 /* not initialized */ }, 164 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 165 OP_NODEFAULT, sizeof (struct group_source_req), 166 -1 /* not initialized */ }, 167 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 168 OP_NODEFAULT, sizeof (struct group_source_req), 169 -1 /* not initialized */ }, 170 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 171 OP_NODEFAULT, sizeof (struct group_source_req), 172 -1 /* not initialized */ }, 173 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 174 OP_NODEFAULT, sizeof (struct group_source_req), 175 -1 /* not initialized */ }, 176 177 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 178 sizeof (int), 0 }, 179 180 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 181 OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 182 183 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 184 OP_DEF_FN, sizeof (int), -1 /* not initialized */}, 185 186 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, OP_NODEFAULT, 187 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 188 189 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 190 OP_NODEFAULT, 191 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 192 193 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 194 sizeof (int), -1 /* not initialized */ }, 195 196 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 197 sizeof (int), 0 /* no ifindex */ }, 198 199 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0, 200 sizeof (int), 0 }, 201 202 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 203 (OP_NODEFAULT|OP_VARLEN), 204 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 205 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 206 OP_NODEFAULT, 207 sizeof (int), -1 /* not initialized */ }, 208 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 209 (OP_NODEFAULT|OP_VARLEN), 210 sizeof (sin6_t), -1 /* not initialized */ }, 211 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 212 (OP_VARLEN|OP_NODEFAULT), 213 MAX_EHDR_LEN, -1 /* not initialized */ }, 214 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 215 (OP_VARLEN|OP_NODEFAULT), 216 MAX_EHDR_LEN, -1 /* not initialized */ }, 217 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 218 (OP_VARLEN|OP_NODEFAULT), 219 MAX_EHDR_LEN, -1 /* not initialized */ }, 220 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 221 (OP_VARLEN|OP_NODEFAULT), 222 MAX_EHDR_LEN, -1 /* not initialized */ }, 223 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 224 OP_NODEFAULT, 225 sizeof (int), -1 /* not initialized */ }, 226 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 227 OP_NODEFAULT, 228 sizeof (struct ip6_mtuinfo), -1 }, 229 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 230 sizeof (int), 0 }, 231 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 232 sizeof (int), 0 }, 233 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 234 sizeof (int), 0 }, 235 236 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 237 sizeof (int), 0 }, 238 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 239 sizeof (int), 0 }, 240 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 241 sizeof (int), 0 }, 242 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 243 sizeof (int), 0 }, 244 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 245 sizeof (int), 0 }, 246 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 247 sizeof (int), 0 }, 248 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 249 sizeof (int), 0 }, 250 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 251 0, sizeof (int), 0 }, 252 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 253 sizeof (int), 0 }, 254 255 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 256 sizeof (ipsec_req_t), -1 /* not initialized */ }, 257 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 258 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 259 260 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 261 OP_NODEFAULT, sizeof (struct group_req), 262 -1 /* not initialized */ }, 263 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 264 OP_NODEFAULT, sizeof (struct group_req), 265 -1 /* not initialized */ }, 266 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 267 OP_NODEFAULT, sizeof (struct group_source_req), 268 -1 /* not initialized */ }, 269 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 270 OP_NODEFAULT, sizeof (struct group_source_req), 271 -1 /* not initialized */ }, 272 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 273 OP_NODEFAULT, sizeof (struct group_source_req), 274 -1 /* not initialized */ }, 275 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 276 OP_NODEFAULT, sizeof (struct group_source_req), 277 -1 /* not initialized */ }, 278 279 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, 0, 280 sizeof (int), 0 }, 281 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 282 }, 283 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 284 }, 285 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int), 286 0 }, 287 }; 288 289 /* 290 * Table of all supported levels 291 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 292 * any supported options so we need this info separately. 293 * 294 * This is needed only for topmost tpi providers and is used only by 295 * XTI interfaces. 296 */ 297 optlevel_t udp_valid_levels_arr[] = { 298 XTI_GENERIC, 299 SOL_SOCKET, 300 IPPROTO_UDP, 301 IPPROTO_IP, 302 IPPROTO_IPV6 303 }; 304 305 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr) 306 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr) 307 308 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */ 309 310 /* 311 * Initialize option database object for UDP 312 * 313 * This object represents database of options to search passed to 314 * {sock,tpi}optcom_req() interface routine to take care of option 315 * management and associated methods. 316 */ 317 318 optdb_obj_t udp_opt_obj = { 319 udp_opt_default, /* UDP default value function pointer */ 320 udp_tpi_opt_get, /* UDP get function pointer */ 321 udp_tpi_opt_set, /* UDP set function pointer */ 322 UDP_OPT_ARR_CNT, /* UDP option database count of entries */ 323 udp_opt_arr, /* UDP option database */ 324 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */ 325 udp_valid_levels_arr /* UDP valid level array */ 326 }; 327