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 * Copyright 2015, Joyent, Inc. 25 * Copyright 2020 OmniOS Community Edition (OmniOSce) Association. 26 */ 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 <inet/common.h> 37 #include <netinet/ip6.h> 38 #include <inet/ip.h> 39 #include <inet/udp_impl.h> 40 /* 41 * MK_XXX Following 2 includes temporary to import ip6_rthdr_t 42 * definition. May not be needed if we fix ip6_dg_snd_attrs_t 43 * to do all extension headers in identical manner. 44 */ 45 #include <net/if.h> 46 #include <inet/ip6.h> 47 48 #include <netinet/in.h> 49 #include <netinet/udp.h> 50 #include <inet/optcom.h> 51 52 /* 53 * Table of all known options handled on a UDP protocol stack. 54 * 55 * Note: This table contains options processed by both UDP and IP levels 56 * and is the superset of options that can be performed on a UDP over IP 57 * stack. 58 */ 59 opdes_t udp_opt_arr[] = { 60 61 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 62 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 63 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 64 }, 65 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 66 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 67 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 68 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 69 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 70 { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 71 sizeof (struct timeval), 0 }, 72 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 73 sizeof (struct timeval), 0 }, 74 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 75 0 }, 76 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 77 }, 78 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 79 0 }, 80 { SO_VRRP, SOL_SOCKET, OA_RW, OA_RW, OP_CONFIG, 0, sizeof (int), 0 }, 81 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 82 }, 83 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 84 0 }, 85 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 86 0 }, 87 { SO_MAC_IMPLICIT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 88 0 }, 89 /* 90 * The maximum size reported here depends on the maximum value for 91 * ucredsize; unfortunately, we can't add ucredsize here so we need 92 * to estimate here. Before it was 512 or 384 + NGROUPS_UMAX * sizeof (gid_t); 93 * as we're changing NGROUPS_UMAX we now codify this here using NGROUPS_UMAX. 94 */ 95 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT, 96 384 + NGROUPS_UMAX * sizeof (gid_t), 0 }, 97 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 98 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 99 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 100 101 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 102 (OP_VARLEN|OP_NODEFAULT), 103 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 104 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 105 (OP_VARLEN|OP_NODEFAULT), 106 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 107 108 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 109 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 110 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 111 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 112 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 113 }, 114 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 115 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 116 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 117 { IP_RECVTOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 118 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 119 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 120 121 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 122 sizeof (uchar_t), -1 /* not initialized */}, 123 124 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 125 sizeof (uchar_t), -1 /* not initialized */ }, 126 127 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 128 sizeof (struct ip_mreq), -1 /* not initialized */ }, 129 130 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 131 sizeof (struct ip_mreq), -1 /* not initialized */ }, 132 133 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 134 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 135 136 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 137 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 138 139 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 140 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 141 142 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 143 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 144 145 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 146 sizeof (ipsec_req_t), -1 /* not initialized */ }, 147 148 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 149 sizeof (int), 0 /* no ifindex */ }, 150 151 { IP_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 152 sizeof (int), 0 }, 153 154 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, 155 sizeof (int), 0 }, 156 157 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 158 0 /* disabled */ }, 159 160 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 161 (OP_NODEFAULT|OP_VARLEN), 162 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 163 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 164 sizeof (in_addr_t), -1 /* not initialized */ }, 165 166 { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 167 168 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 169 OP_NODEFAULT, sizeof (struct group_req), 170 -1 /* not initialized */ }, 171 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 172 OP_NODEFAULT, sizeof (struct group_req), 173 -1 /* not initialized */ }, 174 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 175 OP_NODEFAULT, sizeof (struct group_source_req), 176 -1 /* not initialized */ }, 177 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 178 OP_NODEFAULT, sizeof (struct group_source_req), 179 -1 /* not initialized */ }, 180 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 181 OP_NODEFAULT, sizeof (struct group_source_req), 182 -1 /* not initialized */ }, 183 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 184 OP_NODEFAULT, sizeof (struct group_source_req), 185 -1 /* not initialized */ }, 186 187 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 188 sizeof (int), 0 }, 189 190 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 191 OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 192 193 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 194 OP_DEF_FN, sizeof (int), -1 /* not initialized */}, 195 196 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, OP_NODEFAULT, 197 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 198 199 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 200 OP_NODEFAULT, 201 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 202 203 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 204 sizeof (int), -1 /* not initialized */ }, 205 206 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 207 sizeof (int), 0 /* no ifindex */ }, 208 209 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0, 210 sizeof (int), 0 }, 211 212 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 213 (OP_NODEFAULT|OP_VARLEN), 214 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 215 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 216 OP_NODEFAULT, 217 sizeof (int), -1 /* not initialized */ }, 218 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 219 (OP_NODEFAULT|OP_VARLEN), 220 sizeof (sin6_t), -1 /* not initialized */ }, 221 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 222 (OP_VARLEN|OP_NODEFAULT), 223 MAX_EHDR_LEN, -1 /* not initialized */ }, 224 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 225 (OP_VARLEN|OP_NODEFAULT), 226 MAX_EHDR_LEN, -1 /* not initialized */ }, 227 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 228 (OP_VARLEN|OP_NODEFAULT), 229 MAX_EHDR_LEN, -1 /* not initialized */ }, 230 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 231 (OP_VARLEN|OP_NODEFAULT), 232 MAX_EHDR_LEN, -1 /* not initialized */ }, 233 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 234 OP_NODEFAULT, 235 sizeof (int), -1 /* not initialized */ }, 236 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 237 OP_NODEFAULT, 238 sizeof (struct ip6_mtuinfo), -1 }, 239 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 240 sizeof (int), 0 }, 241 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 242 sizeof (int), 0 }, 243 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 244 sizeof (int), 0 }, 245 246 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 247 sizeof (int), 0 }, 248 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 249 sizeof (int), 0 }, 250 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 251 sizeof (int), 0 }, 252 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 253 sizeof (int), 0 }, 254 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 255 sizeof (int), 0 }, 256 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 257 sizeof (int), 0 }, 258 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 259 sizeof (int), 0 }, 260 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 261 0, sizeof (int), 0 }, 262 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 263 sizeof (int), 0 }, 264 265 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 266 sizeof (ipsec_req_t), -1 /* not initialized */ }, 267 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 268 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 269 270 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 271 OP_NODEFAULT, sizeof (struct group_req), 272 -1 /* not initialized */ }, 273 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 274 OP_NODEFAULT, sizeof (struct group_req), 275 -1 /* not initialized */ }, 276 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 277 OP_NODEFAULT, sizeof (struct group_source_req), 278 -1 /* not initialized */ }, 279 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 280 OP_NODEFAULT, sizeof (struct group_source_req), 281 -1 /* not initialized */ }, 282 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 283 OP_NODEFAULT, sizeof (struct group_source_req), 284 -1 /* not initialized */ }, 285 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 286 OP_NODEFAULT, sizeof (struct group_source_req), 287 -1 /* not initialized */ }, 288 289 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, 0, 290 sizeof (int), 0 }, 291 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 292 }, 293 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 294 }, 295 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int), 296 0 }, 297 { UDP_SRCPORT_HASH, IPPROTO_UDP, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 0 } 298 }; 299 300 /* 301 * Table of all supported levels 302 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 303 * any supported options so we need this info separately. 304 * 305 * This is needed only for topmost tpi providers and is used only by 306 * XTI interfaces. 307 */ 308 optlevel_t udp_valid_levels_arr[] = { 309 XTI_GENERIC, 310 SOL_SOCKET, 311 IPPROTO_UDP, 312 IPPROTO_IP, 313 IPPROTO_IPV6 314 }; 315 316 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr) 317 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr) 318 319 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */ 320 321 /* 322 * Initialize option database object for UDP 323 * 324 * This object represents database of options to search passed to 325 * {sock,tpi}optcom_req() interface routine to take care of option 326 * management and associated methods. 327 */ 328 329 optdb_obj_t udp_opt_obj = { 330 udp_opt_default, /* UDP default value function pointer */ 331 udp_tpi_opt_get, /* UDP get function pointer */ 332 udp_tpi_opt_set, /* UDP set function pointer */ 333 UDP_OPT_ARR_CNT, /* UDP option database count of entries */ 334 udp_opt_arr, /* UDP option database */ 335 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */ 336 udp_valid_levels_arr /* UDP valid level array */ 337 }; 338