udp_opt_data.c revision 11042:2d6e217af1b4
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 */ 57opdes_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 */ 297optlevel_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 308uint_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 318optdb_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