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 * Copyright 2024 Oxide Computer Company 27 */ 28 29 #include <sys/types.h> 30 #include <sys/stream.h> 31 #define _SUN_TPI_VERSION 2 32 #include <sys/tihdr.h> 33 #include <sys/socket.h> 34 #include <sys/xti_xtiopt.h> 35 #include <sys/xti_inet.h> 36 37 #include <inet/common.h> 38 #include <netinet/ip6.h> 39 #include <inet/ip.h> 40 #include <inet/udp_impl.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/in.h> 50 #include <netinet/udp.h> 51 #include <inet/optcom.h> 52 53 /* 54 * Table of all known options handled on a UDP protocol stack. 55 * 56 * Note: This table contains options processed by both UDP and IP levels 57 * and is the superset of options that can be performed on a UDP over IP 58 * stack. 59 */ 60 opdes_t udp_opt_arr[] = { 61 62 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 63 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 64 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 65 }, 66 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 67 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 68 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 69 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 70 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 71 { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 72 sizeof (struct timeval), 0 }, 73 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 74 sizeof (struct timeval), 0 }, 75 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 76 0 }, 77 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 78 }, 79 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 80 0 }, 81 { SO_VRRP, SOL_SOCKET, OA_RW, OA_RW, OP_CONFIG, 0, sizeof (int), 0 }, 82 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 83 }, 84 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 85 0 }, 86 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 87 0 }, 88 { SO_MAC_IMPLICIT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 89 0 }, 90 /* 91 * The maximum size reported here depends on the maximum value for 92 * ucredsize; unfortunately, we can't add ucredsize here so we need 93 * to estimate here. Before it was 512 or 384 + NGROUPS_UMAX * sizeof (gid_t); 94 * as we're changing NGROUPS_UMAX we now codify this here using NGROUPS_UMAX. 95 */ 96 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT, 97 384 + NGROUPS_UMAX * sizeof (gid_t), 0 }, 98 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 99 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 100 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 101 102 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 103 (OP_VARLEN|OP_NODEFAULT), 104 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 105 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 106 (OP_VARLEN|OP_NODEFAULT), 107 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 108 109 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 110 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 111 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 112 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 113 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 114 }, 115 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 116 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 117 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 118 { IP_RECVTOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 119 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 120 sizeof (struct in_addr), 0 /* INADDR_ANY */ }, 121 122 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 123 sizeof (uchar_t), -1 /* not initialized */}, 124 125 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 126 sizeof (uchar_t), -1 /* not initialized */ }, 127 128 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 129 sizeof (struct ip_mreq), -1 /* not initialized */ }, 130 131 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 132 sizeof (struct ip_mreq), -1 /* not initialized */ }, 133 134 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 135 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 136 137 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT, 138 sizeof (struct ip_mreq_source), -1 /* not initialized */ }, 139 140 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 141 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 142 143 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, 144 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 }, 145 146 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 147 sizeof (ipsec_req_t), -1 /* not initialized */ }, 148 149 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 150 sizeof (int), 0 /* no ifindex */ }, 151 152 { IP_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 153 sizeof (int), 0 }, 154 155 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, 156 sizeof (int), 0 }, 157 158 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t), 159 0 /* disabled */ }, 160 161 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 162 (OP_NODEFAULT|OP_VARLEN), 163 sizeof (struct in_pktinfo), -1 /* not initialized */ }, 164 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 165 sizeof (in_addr_t), -1 /* not initialized */ }, 166 167 { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 168 169 { IP_MINTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 170 171 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 172 OP_NODEFAULT, sizeof (struct group_req), 173 -1 /* not initialized */ }, 174 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 175 OP_NODEFAULT, sizeof (struct group_req), 176 -1 /* not initialized */ }, 177 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 178 OP_NODEFAULT, sizeof (struct group_source_req), 179 -1 /* not initialized */ }, 180 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, 181 OP_NODEFAULT, sizeof (struct group_source_req), 182 -1 /* not initialized */ }, 183 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 184 OP_NODEFAULT, sizeof (struct group_source_req), 185 -1 /* not initialized */ }, 186 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP, 187 OP_NODEFAULT, sizeof (struct group_source_req), 188 -1 /* not initialized */ }, 189 190 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 191 sizeof (int), 0 }, 192 193 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 194 OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 195 196 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 197 OP_DEF_FN, sizeof (int), -1 /* not initialized */}, 198 199 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, OP_NODEFAULT, 200 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 201 202 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 203 OP_NODEFAULT, 204 sizeof (struct ipv6_mreq), -1 /* not initialized */ }, 205 206 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 207 sizeof (int), -1 /* not initialized */ }, 208 209 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 210 sizeof (int), 0 /* no ifindex */ }, 211 212 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0, 213 sizeof (int), 0 }, 214 215 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 216 (OP_NODEFAULT|OP_VARLEN), 217 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 218 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 219 OP_NODEFAULT, 220 sizeof (int), -1 /* not initialized */ }, 221 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 222 (OP_NODEFAULT|OP_VARLEN), 223 sizeof (sin6_t), -1 /* not initialized */ }, 224 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 225 (OP_VARLEN|OP_NODEFAULT), 226 MAX_EHDR_LEN, -1 /* not initialized */ }, 227 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 228 (OP_VARLEN|OP_NODEFAULT), 229 MAX_EHDR_LEN, -1 /* not initialized */ }, 230 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 231 (OP_VARLEN|OP_NODEFAULT), 232 MAX_EHDR_LEN, -1 /* not initialized */ }, 233 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 234 (OP_VARLEN|OP_NODEFAULT), 235 MAX_EHDR_LEN, -1 /* not initialized */ }, 236 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 237 OP_NODEFAULT, 238 sizeof (int), -1 /* not initialized */ }, 239 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 240 OP_NODEFAULT, 241 sizeof (struct ip6_mtuinfo), -1 }, 242 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 243 sizeof (int), 0 }, 244 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 245 sizeof (int), 0 }, 246 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 247 sizeof (int), 0 }, 248 249 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 250 sizeof (int), 0 }, 251 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 252 sizeof (int), 0 }, 253 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 254 sizeof (int), 0 }, 255 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 256 sizeof (int), 0 }, 257 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 258 sizeof (int), 0 }, 259 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 260 sizeof (int), 0 }, 261 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 262 sizeof (int), 0 }, 263 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 264 0, sizeof (int), 0 }, 265 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 266 sizeof (int), 0 }, 267 268 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 269 sizeof (ipsec_req_t), -1 /* not initialized */ }, 270 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 271 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 272 273 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 274 OP_NODEFAULT, sizeof (struct group_req), 275 -1 /* not initialized */ }, 276 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 277 OP_NODEFAULT, sizeof (struct group_req), 278 -1 /* not initialized */ }, 279 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 280 OP_NODEFAULT, sizeof (struct group_source_req), 281 -1 /* not initialized */ }, 282 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 283 OP_NODEFAULT, sizeof (struct group_source_req), 284 -1 /* not initialized */ }, 285 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 286 OP_NODEFAULT, sizeof (struct group_source_req), 287 -1 /* not initialized */ }, 288 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, 289 OP_NODEFAULT, sizeof (struct group_source_req), 290 -1 /* not initialized */ }, 291 { IPV6_MINHOPCOUNT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 292 sizeof (int), 0 }, 293 294 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, 0, 295 sizeof (int), 0 }, 296 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 297 }, 298 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 299 }, 300 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int), 301 0 }, 302 { UDP_SRCPORT_HASH, IPPROTO_UDP, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 0 } 303 }; 304 305 /* 306 * Table of all supported levels 307 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 308 * any supported options so we need this info separately. 309 * 310 * This is needed only for topmost tpi providers and is used only by 311 * XTI interfaces. 312 */ 313 optlevel_t udp_valid_levels_arr[] = { 314 XTI_GENERIC, 315 SOL_SOCKET, 316 IPPROTO_UDP, 317 IPPROTO_IP, 318 IPPROTO_IPV6 319 }; 320 321 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr) 322 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr) 323 324 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */ 325 326 /* 327 * Initialize option database object for UDP 328 * 329 * This object represents database of options to search passed to 330 * {sock,tpi}optcom_req() interface routine to take care of option 331 * management and associated methods. 332 */ 333 334 optdb_obj_t udp_opt_obj = { 335 udp_opt_default, /* UDP default value function pointer */ 336 udp_tpi_opt_get, /* UDP get function pointer */ 337 udp_tpi_opt_set, /* UDP set function pointer */ 338 UDP_OPT_ARR_CNT, /* UDP option database count of entries */ 339 udp_opt_arr, /* UDP option database */ 340 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */ 341 udp_valid_levels_arr /* UDP valid level array */ 342 }; 343