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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 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 40 #include <netinet/in.h> 41 #include <netinet/tcp.h> 42 #include <inet/optcom.h> 43 44 45 extern int tcp_opt_default(queue_t *q, int level, int name, uchar_t *ptr); 46 extern int tcp_opt_get(queue_t *q, int level, int name, uchar_t *ptr); 47 extern int tcp_opt_set(queue_t *q, uint_t optset_context, int level, 48 int name, uint_t inlen, uchar_t *invalp, uint_t *outlenp, uchar_t *outvalp, 49 void *thisdg_attrs, cred_t *cr, mblk_t *mblk); 50 51 /* 52 * Table of all known options handled on a TCP protocol stack. 53 * 54 * Note: This table contains options processed by both TCP and IP levels 55 * and is the superset of options that can be performed on a TCP over IP 56 * stack. 57 */ 58 opdes_t tcp_opt_arr[] = { 59 60 { SO_LINGER, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 61 sizeof (struct linger), 0 }, 62 63 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 64 { SO_KEEPALIVE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 65 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 66 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 67 }, 68 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 69 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 70 { SO_OOBINLINE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 71 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 72 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 73 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 74 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 75 }, 76 { SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 77 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 78 0 }, 79 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 80 0 }, 81 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 82 0 }, 83 { TCP_NODELAY, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 84 }, 85 { TCP_MAXSEG, IPPROTO_TCP, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (uint_t), 86 536 }, 87 88 { TCP_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 89 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 90 91 { TCP_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 92 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 93 94 { TCP_CONN_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 95 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 96 97 { TCP_CONN_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 98 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 99 100 { TCP_RECVDSTADDR, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 101 0 }, 102 103 { TCP_ANONPRIVBIND, IPPROTO_TCP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 104 sizeof (int), 0 }, 105 106 { TCP_EXCLBIND, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 107 }, 108 109 { TCP_INIT_CWND, IPPROTO_TCP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 110 sizeof (int), 0 }, 111 112 { TCP_KEEPALIVE_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 113 sizeof (int), 0 }, 114 115 { TCP_KEEPALIVE_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 116 sizeof (int), 0 }, 117 118 { TCP_CORK, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 119 120 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 121 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 122 40, -1 /* not initialized */ }, 123 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 124 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 125 40, -1 /* not initialized */ }, 126 127 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 128 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 129 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 130 sizeof (int), -1 /* not initialized */ }, 131 132 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 133 sizeof (ipsec_req_t), -1 /* not initialized */ }, 134 135 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 136 sizeof (int), 0 /* no ifindex */ }, 137 138 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 139 sizeof (int), 0 }, 140 141 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 142 sizeof (int), -1 /* not initialized */ }, 143 144 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 145 sizeof (int), 0 /* no ifindex */ }, 146 147 { IP_NEXTHOP, IPPROTO_IP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 148 sizeof (in_addr_t), -1 /* not initialized */ }, 149 150 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 151 sizeof (int), 0 /* no ifindex */ }, 152 153 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 154 sizeof (int), 0 }, 155 156 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 157 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 158 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 159 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 160 (OP_PASSNEXT|OP_NODEFAULT), 161 sizeof (sin6_t), -1 /* not initialized */ }, 162 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 163 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 164 -1 /* not initialized */ }, 165 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 166 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 167 -1 /* not initialized */ }, 168 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 169 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 170 -1 /* not initialized */ }, 171 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 172 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 173 -1 /* not initialized */ }, 174 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 175 (OP_PASSNEXT|OP_NODEFAULT), 176 sizeof (int), -1 /* not initialized */ }, 177 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 178 (OP_PASSNEXT|OP_NODEFAULT), 179 sizeof (struct ip6_mtuinfo), -1 /* not initialized */ }, 180 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 181 sizeof (int), 0 }, 182 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 183 sizeof (int), 0 }, 184 185 /* Enable receipt of ancillary data */ 186 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 187 sizeof (int), 0 }, 188 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 189 sizeof (int), 0 }, 190 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 191 sizeof (int), 0 }, 192 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 193 sizeof (int), 0 }, 194 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 195 sizeof (int), 0 }, 196 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 197 sizeof (int), 0 }, 198 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 199 sizeof (int), 0 }, 200 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 201 sizeof (int), 0 }, 202 203 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 204 sizeof (ipsec_req_t), -1 /* not initialized */ }, 205 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 206 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 207 }; 208 209 /* 210 * Table of all supported levels 211 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 212 * any supported options so we need this info separately. 213 * 214 * This is needed only for topmost tpi providers and is used only by 215 * XTI interfaces. 216 */ 217 optlevel_t tcp_valid_levels_arr[] = { 218 XTI_GENERIC, 219 SOL_SOCKET, 220 IPPROTO_TCP, 221 IPPROTO_IP, 222 IPPROTO_IPV6 223 }; 224 225 226 #define TCP_OPT_ARR_CNT A_CNT(tcp_opt_arr) 227 #define TCP_VALID_LEVELS_CNT A_CNT(tcp_valid_levels_arr) 228 229 uint_t tcp_max_optsize; /* initialized when TCP driver is loaded */ 230 231 /* 232 * Initialize option database object for TCP 233 * 234 * This object represents database of options to search passed to 235 * {sock,tpi}optcom_req() interface routine to take care of option 236 * management and associated methods. 237 */ 238 239 optdb_obj_t tcp_opt_obj = { 240 tcp_opt_default, /* TCP default value function pointer */ 241 tcp_opt_get, /* TCP get function pointer */ 242 tcp_opt_set, /* TCP set function pointer */ 243 B_TRUE, /* TCP is tpi provider */ 244 TCP_OPT_ARR_CNT, /* TCP option database count of entries */ 245 tcp_opt_arr, /* TCP option database */ 246 TCP_VALID_LEVELS_CNT, /* TCP valid level count of entries */ 247 tcp_valid_levels_arr /* TCP valid level array */ 248 }; 249