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 2007 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 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 84 85 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 86 87 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 88 89 { TCP_NODELAY, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 90 }, 91 { TCP_MAXSEG, IPPROTO_TCP, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (uint_t), 92 536 }, 93 94 { TCP_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 95 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 96 97 { TCP_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 98 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 99 100 { TCP_CONN_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 101 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 102 103 { TCP_CONN_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 104 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 105 106 { TCP_RECVDSTADDR, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 107 0 }, 108 109 { TCP_ANONPRIVBIND, IPPROTO_TCP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 110 sizeof (int), 0 }, 111 112 { TCP_EXCLBIND, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 113 }, 114 115 { TCP_INIT_CWND, IPPROTO_TCP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 116 sizeof (int), 0 }, 117 118 { TCP_KEEPALIVE_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 119 sizeof (int), 0 }, 120 121 { TCP_KEEPALIVE_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 122 sizeof (int), 0 }, 123 124 { TCP_CORK, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 125 126 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 127 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 128 40, -1 /* not initialized */ }, 129 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 130 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 131 40, -1 /* not initialized */ }, 132 133 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 134 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 135 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 136 sizeof (int), -1 /* not initialized */ }, 137 138 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 139 sizeof (ipsec_req_t), -1 /* not initialized */ }, 140 141 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 142 sizeof (int), 0 /* no ifindex */ }, 143 144 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 145 sizeof (int), 0 }, 146 147 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 148 sizeof (int), -1 /* not initialized */ }, 149 150 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 151 sizeof (int), 0 /* no ifindex */ }, 152 153 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 154 sizeof (in_addr_t), -1 /* not initialized */ }, 155 156 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 157 sizeof (int), 0 /* no ifindex */ }, 158 159 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 160 sizeof (int), 0 }, 161 162 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 163 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 164 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 165 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 166 (OP_PASSNEXT|OP_NODEFAULT), 167 sizeof (sin6_t), -1 /* not initialized */ }, 168 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 169 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 170 -1 /* not initialized */ }, 171 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 172 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 173 -1 /* not initialized */ }, 174 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 175 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 176 -1 /* not initialized */ }, 177 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 178 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 179 -1 /* not initialized */ }, 180 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 181 (OP_PASSNEXT|OP_NODEFAULT), 182 sizeof (int), -1 /* not initialized */ }, 183 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 184 (OP_PASSNEXT|OP_NODEFAULT), 185 sizeof (struct ip6_mtuinfo), -1 /* not initialized */ }, 186 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 187 sizeof (int), 0 }, 188 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 189 sizeof (int), 0 }, 190 191 /* Enable receipt of ancillary data */ 192 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 193 sizeof (int), 0 }, 194 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 195 sizeof (int), 0 }, 196 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 197 sizeof (int), 0 }, 198 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 199 sizeof (int), 0 }, 200 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 201 sizeof (int), 0 }, 202 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 203 sizeof (int), 0 }, 204 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 205 sizeof (int), 0 }, 206 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 207 sizeof (int), 0 }, 208 209 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 210 sizeof (ipsec_req_t), -1 /* not initialized */ }, 211 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 212 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 213 }; 214 215 /* 216 * Table of all supported levels 217 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 218 * any supported options so we need this info separately. 219 * 220 * This is needed only for topmost tpi providers and is used only by 221 * XTI interfaces. 222 */ 223 optlevel_t tcp_valid_levels_arr[] = { 224 XTI_GENERIC, 225 SOL_SOCKET, 226 IPPROTO_TCP, 227 IPPROTO_IP, 228 IPPROTO_IPV6 229 }; 230 231 232 #define TCP_OPT_ARR_CNT A_CNT(tcp_opt_arr) 233 #define TCP_VALID_LEVELS_CNT A_CNT(tcp_valid_levels_arr) 234 235 uint_t tcp_max_optsize; /* initialized when TCP driver is loaded */ 236 237 /* 238 * Initialize option database object for TCP 239 * 240 * This object represents database of options to search passed to 241 * {sock,tpi}optcom_req() interface routine to take care of option 242 * management and associated methods. 243 */ 244 245 optdb_obj_t tcp_opt_obj = { 246 tcp_opt_default, /* TCP default value function pointer */ 247 tcp_opt_get, /* TCP get function pointer */ 248 tcp_opt_set, /* TCP set function pointer */ 249 B_TRUE, /* TCP is tpi provider */ 250 TCP_OPT_ARR_CNT, /* TCP option database count of entries */ 251 tcp_opt_arr, /* TCP option database */ 252 TCP_VALID_LEVELS_CNT, /* TCP valid level count of entries */ 253 tcp_valid_levels_arr /* TCP valid level array */ 254 }; 255