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 2008 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 38 #include <netinet/in.h> 39 #include <netinet/tcp.h> 40 #include <inet/optcom.h> 41 42 43 extern int tcp_opt_default(queue_t *q, int level, int name, uchar_t *ptr); 44 extern int tcp_tpi_opt_get(queue_t *q, int level, int name, uchar_t *ptr); 45 extern int tcp_tpi_opt_set(queue_t *q, uint_t optset_context, int level, 46 int name, uint_t inlen, uchar_t *invalp, uint_t *outlenp, uchar_t *outvalp, 47 void *thisdg_attrs, cred_t *cr, mblk_t *mblk); 48 49 /* 50 * Table of all known options handled on a TCP protocol stack. 51 * 52 * Note: This table contains options processed by both TCP and IP levels 53 * and is the superset of options that can be performed on a TCP over IP 54 * stack. 55 */ 56 opdes_t tcp_opt_arr[] = { 57 58 { SO_LINGER, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 59 sizeof (struct linger), 0 }, 60 61 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 62 { SO_KEEPALIVE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 63 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 64 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 65 }, 66 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 67 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 68 { SO_OOBINLINE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 69 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 70 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 71 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 72 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 73 }, 74 { SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 75 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 76 0 }, 77 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 78 0 }, 79 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 80 0 }, 81 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 82 83 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 84 85 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 86 87 { TCP_NODELAY, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 88 }, 89 { TCP_MAXSEG, IPPROTO_TCP, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (uint_t), 90 536 }, 91 92 { TCP_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 93 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 94 95 { TCP_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 96 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 97 98 { TCP_CONN_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 99 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 100 101 { TCP_CONN_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 102 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 103 104 { TCP_RECVDSTADDR, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 105 0 }, 106 107 { TCP_ANONPRIVBIND, IPPROTO_TCP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 108 sizeof (int), 0 }, 109 110 { TCP_EXCLBIND, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 111 }, 112 113 { TCP_INIT_CWND, IPPROTO_TCP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 114 sizeof (int), 0 }, 115 116 { TCP_KEEPALIVE_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 117 sizeof (int), 0 }, 118 119 { TCP_KEEPALIVE_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 120 sizeof (int), 0 }, 121 122 { TCP_CORK, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 123 124 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 125 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 126 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 127 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 128 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 129 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 130 131 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 132 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 133 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 134 sizeof (int), -1 /* not initialized */ }, 135 136 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 137 sizeof (ipsec_req_t), -1 /* not initialized */ }, 138 139 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 140 sizeof (int), 0 /* no ifindex */ }, 141 142 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 143 sizeof (int), 0 }, 144 145 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 146 sizeof (int), -1 /* not initialized */ }, 147 148 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 149 sizeof (int), 0 /* no ifindex */ }, 150 151 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 152 sizeof (in_addr_t), -1 /* not initialized */ }, 153 154 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 155 sizeof (int), 0 /* no ifindex */ }, 156 157 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 158 sizeof (int), 0 }, 159 160 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 161 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 162 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 163 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 164 (OP_PASSNEXT|OP_NODEFAULT), 165 sizeof (sin6_t), -1 /* not initialized */ }, 166 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 167 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 168 -1 /* not initialized */ }, 169 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 170 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 171 -1 /* not initialized */ }, 172 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 173 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 174 -1 /* not initialized */ }, 175 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 176 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 177 -1 /* not initialized */ }, 178 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 179 (OP_PASSNEXT|OP_NODEFAULT), 180 sizeof (int), -1 /* not initialized */ }, 181 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 182 (OP_PASSNEXT|OP_NODEFAULT), 183 sizeof (struct ip6_mtuinfo), -1 /* not initialized */ }, 184 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 185 sizeof (int), 0 }, 186 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 187 sizeof (int), 0 }, 188 189 /* Enable receipt of ancillary data */ 190 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 191 sizeof (int), 0 }, 192 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 193 sizeof (int), 0 }, 194 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 195 sizeof (int), 0 }, 196 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 197 sizeof (int), 0 }, 198 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 199 sizeof (int), 0 }, 200 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 201 sizeof (int), 0 }, 202 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 203 sizeof (int), 0 }, 204 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 205 sizeof (int), 0 }, 206 207 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 208 sizeof (ipsec_req_t), -1 /* not initialized */ }, 209 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 210 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 211 }; 212 213 /* 214 * Table of all supported levels 215 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 216 * any supported options so we need this info separately. 217 * 218 * This is needed only for topmost tpi providers and is used only by 219 * XTI interfaces. 220 */ 221 optlevel_t tcp_valid_levels_arr[] = { 222 XTI_GENERIC, 223 SOL_SOCKET, 224 IPPROTO_TCP, 225 IPPROTO_IP, 226 IPPROTO_IPV6 227 }; 228 229 230 #define TCP_OPT_ARR_CNT A_CNT(tcp_opt_arr) 231 #define TCP_VALID_LEVELS_CNT A_CNT(tcp_valid_levels_arr) 232 233 uint_t tcp_max_optsize; /* initialized when TCP driver is loaded */ 234 235 /* 236 * Initialize option database object for TCP 237 * 238 * This object represents database of options to search passed to 239 * {sock,tpi}optcom_req() interface routine to take care of option 240 * management and associated methods. 241 */ 242 243 optdb_obj_t tcp_opt_obj = { 244 tcp_opt_default, /* TCP default value function pointer */ 245 tcp_tpi_opt_get, /* TCP get function pointer */ 246 tcp_tpi_opt_set, /* TCP set function pointer */ 247 B_TRUE, /* TCP is tpi provider */ 248 TCP_OPT_ARR_CNT, /* TCP option database count of entries */ 249 tcp_opt_arr, /* TCP option database */ 250 TCP_VALID_LEVELS_CNT, /* TCP valid level count of entries */ 251 tcp_valid_levels_arr /* TCP valid level array */ 252 }; 253