17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 545916cd2Sjpk * Common Development and Distribution License (the "License"). 645916cd2Sjpk * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22e11c3f44Smeem * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #include <sys/types.h> 277c478bd9Sstevel@tonic-gate #include <sys/stream.h> 287c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 297c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 307c478bd9Sstevel@tonic-gate #include <sys/socket.h> 317c478bd9Sstevel@tonic-gate #include <sys/xti_xtiopt.h> 327c478bd9Sstevel@tonic-gate #include <sys/xti_inet.h> 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate #include <inet/common.h> 357c478bd9Sstevel@tonic-gate #include <netinet/ip6.h> 367c478bd9Sstevel@tonic-gate #include <inet/ip.h> 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate #include <netinet/in.h> 397c478bd9Sstevel@tonic-gate #include <netinet/tcp.h> 407c478bd9Sstevel@tonic-gate #include <inet/optcom.h> 417c478bd9Sstevel@tonic-gate 42*bd670b35SErik Nordmark #include <inet/tcp_impl.h> 437c478bd9Sstevel@tonic-gate 447c478bd9Sstevel@tonic-gate /* 457c478bd9Sstevel@tonic-gate * Table of all known options handled on a TCP protocol stack. 467c478bd9Sstevel@tonic-gate * 477c478bd9Sstevel@tonic-gate * Note: This table contains options processed by both TCP and IP levels 487c478bd9Sstevel@tonic-gate * and is the superset of options that can be performed on a TCP over IP 497c478bd9Sstevel@tonic-gate * stack. 507c478bd9Sstevel@tonic-gate */ 517c478bd9Sstevel@tonic-gate opdes_t tcp_opt_arr[] = { 527c478bd9Sstevel@tonic-gate 53*bd670b35SErik Nordmark { SO_LINGER, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 547c478bd9Sstevel@tonic-gate sizeof (struct linger), 0 }, 557c478bd9Sstevel@tonic-gate 56*bd670b35SErik Nordmark { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 57*bd670b35SErik Nordmark { SO_KEEPALIVE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 58*bd670b35SErik Nordmark { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 59*bd670b35SErik Nordmark { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 607c478bd9Sstevel@tonic-gate }, 61*bd670b35SErik Nordmark { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 62*bd670b35SErik Nordmark { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 63*bd670b35SErik Nordmark { SO_OOBINLINE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 64*bd670b35SErik Nordmark { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 65*bd670b35SErik Nordmark { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 66*bd670b35SErik Nordmark { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 67*bd670b35SErik Nordmark { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 683986c91eSanders sizeof (struct timeval), 0 }, 69*bd670b35SErik Nordmark { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, 703986c91eSanders sizeof (struct timeval), 0 }, 71*bd670b35SErik Nordmark { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 727c478bd9Sstevel@tonic-gate }, 737c478bd9Sstevel@tonic-gate { SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 74*bd670b35SErik Nordmark { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 755d0bc3edSsommerfe 0 }, 76*bd670b35SErik Nordmark { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 775d0bc3edSsommerfe 0 }, 78*bd670b35SErik Nordmark { SO_MAC_IMPLICIT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 795d3b8cb7SBill Sommerfeld 0 }, 80*bd670b35SErik Nordmark { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int), 815d0bc3edSsommerfe 0 }, 82*bd670b35SErik Nordmark { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 83ae347574Skcpoon 84*bd670b35SErik Nordmark { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 8588cda078Skcpoon 86*bd670b35SErik Nordmark { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 }, 8788cda078Skcpoon 88*bd670b35SErik Nordmark { TCP_NODELAY, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 897c478bd9Sstevel@tonic-gate }, 90*bd670b35SErik Nordmark { TCP_MAXSEG, IPPROTO_TCP, OA_R, OA_R, OP_NP, 0, sizeof (uint_t), 917c478bd9Sstevel@tonic-gate 536 }, 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate { TCP_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 94*bd670b35SErik Nordmark OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 957c478bd9Sstevel@tonic-gate 967c478bd9Sstevel@tonic-gate { TCP_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 97*bd670b35SErik Nordmark OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 987c478bd9Sstevel@tonic-gate 997c478bd9Sstevel@tonic-gate { TCP_CONN_NOTIFY_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 100*bd670b35SErik Nordmark OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 1017c478bd9Sstevel@tonic-gate 1027c478bd9Sstevel@tonic-gate { TCP_CONN_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 103*bd670b35SErik Nordmark OP_DEF_FN, sizeof (int), -1 /* not initialized */ }, 1047c478bd9Sstevel@tonic-gate 105*bd670b35SErik Nordmark { TCP_RECVDSTADDR, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 1067c478bd9Sstevel@tonic-gate 0 }, 1077c478bd9Sstevel@tonic-gate 108*bd670b35SErik Nordmark { TCP_ANONPRIVBIND, IPPROTO_TCP, OA_R, OA_RW, OP_PRIVPORT, 0, 1097c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1107c478bd9Sstevel@tonic-gate 111*bd670b35SErik Nordmark { TCP_EXCLBIND, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 1127c478bd9Sstevel@tonic-gate }, 1137c478bd9Sstevel@tonic-gate 114*bd670b35SErik Nordmark { TCP_INIT_CWND, IPPROTO_TCP, OA_RW, OA_RW, OP_CONFIG, 0, 1157c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1167c478bd9Sstevel@tonic-gate 117*bd670b35SErik Nordmark { TCP_KEEPALIVE_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, 1187c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1197c478bd9Sstevel@tonic-gate 120*bd670b35SErik Nordmark { TCP_KEEPALIVE_ABORT_THRESHOLD, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, 1217c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1227c478bd9Sstevel@tonic-gate 123*bd670b35SErik Nordmark { TCP_CORK, IPPROTO_TCP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 126*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 1270f1702c5SYu Xiangning IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 1287c478bd9Sstevel@tonic-gate { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 129*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 1300f1702c5SYu Xiangning IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ }, 1317c478bd9Sstevel@tonic-gate 132*bd670b35SErik Nordmark { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 133*bd670b35SErik Nordmark { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 134*bd670b35SErik Nordmark { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 1357c478bd9Sstevel@tonic-gate sizeof (int), -1 /* not initialized */ }, 1367c478bd9Sstevel@tonic-gate 137*bd670b35SErik Nordmark { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 1387c478bd9Sstevel@tonic-gate sizeof (ipsec_req_t), -1 /* not initialized */ }, 1397c478bd9Sstevel@tonic-gate 140*bd670b35SErik Nordmark { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, 1417c478bd9Sstevel@tonic-gate sizeof (int), 0 /* no ifindex */ }, 1427c478bd9Sstevel@tonic-gate 143*bd670b35SErik Nordmark { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, 1447c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1457c478bd9Sstevel@tonic-gate 146*bd670b35SErik Nordmark { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN, 1477c478bd9Sstevel@tonic-gate sizeof (int), -1 /* not initialized */ }, 1487c478bd9Sstevel@tonic-gate 149*bd670b35SErik Nordmark { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1507c478bd9Sstevel@tonic-gate sizeof (int), 0 /* no ifindex */ }, 1517c478bd9Sstevel@tonic-gate 152*bd670b35SErik Nordmark { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 }, 153*bd670b35SErik Nordmark 154*bd670b35SErik Nordmark { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0, 15543d18f1cSpriyanka sizeof (in_addr_t), -1 /* not initialized */ }, 15643d18f1cSpriyanka 157*bd670b35SErik Nordmark { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0, 1587c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1597c478bd9Sstevel@tonic-gate 1607c478bd9Sstevel@tonic-gate { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 161*bd670b35SErik Nordmark (OP_NODEFAULT|OP_VARLEN), 1627c478bd9Sstevel@tonic-gate sizeof (struct in6_pktinfo), -1 /* not initialized */ }, 1637c478bd9Sstevel@tonic-gate { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 164*bd670b35SErik Nordmark OP_NODEFAULT, 1657c478bd9Sstevel@tonic-gate sizeof (sin6_t), -1 /* not initialized */ }, 1667c478bd9Sstevel@tonic-gate { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 167*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 255*8, 1687c478bd9Sstevel@tonic-gate -1 /* not initialized */ }, 1697c478bd9Sstevel@tonic-gate { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 170*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 255*8, 1717c478bd9Sstevel@tonic-gate -1 /* not initialized */ }, 1727c478bd9Sstevel@tonic-gate { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 173*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 255*8, 1747c478bd9Sstevel@tonic-gate -1 /* not initialized */ }, 1757c478bd9Sstevel@tonic-gate { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 176*bd670b35SErik Nordmark (OP_VARLEN|OP_NODEFAULT), 255*8, 1777c478bd9Sstevel@tonic-gate -1 /* not initialized */ }, 1787c478bd9Sstevel@tonic-gate { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 179*bd670b35SErik Nordmark OP_NODEFAULT, 1807c478bd9Sstevel@tonic-gate sizeof (int), -1 /* not initialized */ }, 1817c478bd9Sstevel@tonic-gate { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 182*bd670b35SErik Nordmark OP_NODEFAULT, 1837c478bd9Sstevel@tonic-gate sizeof (struct ip6_mtuinfo), -1 /* not initialized */ }, 184*bd670b35SErik Nordmark { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 185*bd670b35SErik Nordmark sizeof (int), 0 }, 186*bd670b35SErik Nordmark { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1877c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 188*bd670b35SErik Nordmark { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1897c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate /* Enable receipt of ancillary data */ 192*bd670b35SErik Nordmark { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1937c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 194*bd670b35SErik Nordmark { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1957c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 196*bd670b35SErik Nordmark { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1977c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 198*bd670b35SErik Nordmark { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 1997c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 200*bd670b35SErik Nordmark { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 2017c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 202*bd670b35SErik Nordmark { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 2037c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 204*bd670b35SErik Nordmark { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 2057c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 206*bd670b35SErik Nordmark { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 2077c478bd9Sstevel@tonic-gate sizeof (int), 0 }, 2087c478bd9Sstevel@tonic-gate 209*bd670b35SErik Nordmark { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT, 2107c478bd9Sstevel@tonic-gate sizeof (ipsec_req_t), -1 /* not initialized */ }, 211*bd670b35SErik Nordmark { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0, 2127c478bd9Sstevel@tonic-gate sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT }, 2137c478bd9Sstevel@tonic-gate }; 2147c478bd9Sstevel@tonic-gate 2157c478bd9Sstevel@tonic-gate /* 2167c478bd9Sstevel@tonic-gate * Table of all supported levels 2177c478bd9Sstevel@tonic-gate * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have 2187c478bd9Sstevel@tonic-gate * any supported options so we need this info separately. 2197c478bd9Sstevel@tonic-gate * 2207c478bd9Sstevel@tonic-gate * This is needed only for topmost tpi providers and is used only by 2217c478bd9Sstevel@tonic-gate * XTI interfaces. 2227c478bd9Sstevel@tonic-gate */ 2237c478bd9Sstevel@tonic-gate optlevel_t tcp_valid_levels_arr[] = { 2247c478bd9Sstevel@tonic-gate XTI_GENERIC, 2257c478bd9Sstevel@tonic-gate SOL_SOCKET, 2267c478bd9Sstevel@tonic-gate IPPROTO_TCP, 2277c478bd9Sstevel@tonic-gate IPPROTO_IP, 2287c478bd9Sstevel@tonic-gate IPPROTO_IPV6 2297c478bd9Sstevel@tonic-gate }; 2307c478bd9Sstevel@tonic-gate 2317c478bd9Sstevel@tonic-gate 2327c478bd9Sstevel@tonic-gate #define TCP_OPT_ARR_CNT A_CNT(tcp_opt_arr) 2337c478bd9Sstevel@tonic-gate #define TCP_VALID_LEVELS_CNT A_CNT(tcp_valid_levels_arr) 2347c478bd9Sstevel@tonic-gate 2357c478bd9Sstevel@tonic-gate uint_t tcp_max_optsize; /* initialized when TCP driver is loaded */ 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate /* 2387c478bd9Sstevel@tonic-gate * Initialize option database object for TCP 2397c478bd9Sstevel@tonic-gate * 2407c478bd9Sstevel@tonic-gate * This object represents database of options to search passed to 2417c478bd9Sstevel@tonic-gate * {sock,tpi}optcom_req() interface routine to take care of option 2427c478bd9Sstevel@tonic-gate * management and associated methods. 2437c478bd9Sstevel@tonic-gate */ 2447c478bd9Sstevel@tonic-gate 2457c478bd9Sstevel@tonic-gate optdb_obj_t tcp_opt_obj = { 2467c478bd9Sstevel@tonic-gate tcp_opt_default, /* TCP default value function pointer */ 2470f1702c5SYu Xiangning tcp_tpi_opt_get, /* TCP get function pointer */ 2480f1702c5SYu Xiangning tcp_tpi_opt_set, /* TCP set function pointer */ 2497c478bd9Sstevel@tonic-gate TCP_OPT_ARR_CNT, /* TCP option database count of entries */ 2507c478bd9Sstevel@tonic-gate tcp_opt_arr, /* TCP option database */ 2517c478bd9Sstevel@tonic-gate TCP_VALID_LEVELS_CNT, /* TCP valid level count of entries */ 2527c478bd9Sstevel@tonic-gate tcp_valid_levels_arr /* TCP valid level array */ 2537c478bd9Sstevel@tonic-gate }; 254