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 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_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 73 sizeof (struct timeval), 0 }, 74 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 75 sizeof (struct timeval), 0 }, 76 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 77 }, 78 { SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 79 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 80 0 }, 81 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 82 0 }, 83 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int), 84 0 }, 85 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 86 87 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 88 89 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 90 91 { TCP_NODELAY, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 92 }, 93 { TCP_MAXSEG, IPPROTO_TCP, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (uint_t), 94 536 }, 95 96 { TCP_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 97 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 98 99 { TCP_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 100 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 101 102 { TCP_CONN_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 103 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 104 105 { TCP_CONN_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 106 (OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ }, 107 108 { TCP_RECVDSTADDR, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 109 0 }, 110 111 { TCP_ANONPRIVBIND, IPPROTO_TCP, OA_R, OA_RW, OP_PRIVPORT, OP_PASSNEXT, 112 sizeof (int), 0 }, 113 114 { TCP_EXCLBIND, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 115 }, 116 117 { TCP_INIT_CWND, IPPROTO_TCP, OA_RW, OA_RW, OP_CONFIG, OP_PASSNEXT, 118 sizeof (int), 0 }, 119 120 { TCP_KEEPALIVE_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 121 sizeof (int), 0 }, 122 123 { TCP_KEEPALIVE_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 124 sizeof (int), 0 }, 125 126 { TCP_CORK, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 127 128 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 129 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 130 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 131 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 132 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 133 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 134 135 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 136 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 }, 137 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 138 sizeof (int), -1 /* not initialized */ }, 139 140 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 141 sizeof (ipsec_req_t), -1 /* not initialized */ }, 142 143 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 144 sizeof (int), 0 /* no ifindex */ }, 145 146 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 147 sizeof (int), 0 }, 148 149 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN), 150 sizeof (int), -1 /* not initialized */ }, 151 152 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 153 sizeof (int), 0 /* no ifindex */ }, 154 155 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, 156 sizeof (in_addr_t), -1 /* not initialized */ }, 157 158 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT, 159 sizeof (int), 0 }, 160 161 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 162 (OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN), 163 sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 164 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 165 (OP_PASSNEXT|OP_NODEFAULT), 166 sizeof (sin6_t), -1 /* not initialized */ }, 167 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 168 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 169 -1 /* not initialized */ }, 170 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 171 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 172 -1 /* not initialized */ }, 173 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 174 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 175 -1 /* not initialized */ }, 176 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 177 (OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT), 255*8, 178 -1 /* not initialized */ }, 179 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 180 (OP_PASSNEXT|OP_NODEFAULT), 181 sizeof (int), -1 /* not initialized */ }, 182 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 183 (OP_PASSNEXT|OP_NODEFAULT), 184 sizeof (struct ip6_mtuinfo), -1 /* not initialized */ }, 185 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 186 sizeof (int), 0 }, 187 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 188 sizeof (int), 0 }, 189 190 /* Enable receipt of ancillary data */ 191 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 192 sizeof (int), 0 }, 193 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 194 sizeof (int), 0 }, 195 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 196 sizeof (int), 0 }, 197 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 198 sizeof (int), 0 }, 199 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 200 sizeof (int), 0 }, 201 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 202 sizeof (int), 0 }, 203 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 204 sizeof (int), 0 }, 205 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 206 sizeof (int), 0 }, 207 208 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT), 209 sizeof (ipsec_req_t), -1 /* not initialized */ }, 210 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, 211 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 212 }; 213 214 /* 215 * Table of all supported levels 216 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 217 * any supported options so we need this info separately. 218 * 219 * This is needed only for topmost tpi providers and is used only by 220 * XTI interfaces. 221 */ 222 optlevel_t tcp_valid_levels_arr[] = { 223 XTI_GENERIC, 224 SOL_SOCKET, 225 IPPROTO_TCP, 226 IPPROTO_IP, 227 IPPROTO_IPV6 228 }; 229 230 231 #define TCP_OPT_ARR_CNT A_CNT(tcp_opt_arr) 232 #define TCP_VALID_LEVELS_CNT A_CNT(tcp_valid_levels_arr) 233 234 uint_t tcp_max_optsize; /* initialized when TCP driver is loaded */ 235 236 /* 237 * Initialize option database object for TCP 238 * 239 * This object represents database of options to search passed to 240 * {sock,tpi}optcom_req() interface routine to take care of option 241 * management and associated methods. 242 */ 243 244 optdb_obj_t tcp_opt_obj = { 245 tcp_opt_default, /* TCP default value function pointer */ 246 tcp_tpi_opt_get, /* TCP get function pointer */ 247 tcp_tpi_opt_set, /* TCP set function pointer */ 248 B_TRUE, /* TCP is tpi provider */ 249 TCP_OPT_ARR_CNT, /* TCP option database count of entries */ 250 tcp_opt_arr, /* TCP option database */ 251 TCP_VALID_LEVELS_CNT, /* TCP valid level count of entries */ 252 tcp_valid_levels_arr /* TCP valid level array */ 253 }; 254