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 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <inet/ip.h> 27 #include <inet/ip6.h> 28 #include <inet/sctp/sctp_stack.h> 29 #include <inet/sctp/sctp_impl.h> 30 #include <sys/sunddi.h> 31 32 /* Max size IP datagram is 64k - 1 */ 33 #define SCTP_MSS_MAX_IPV4 (IP_MAXPACKET - (sizeof (ipha_t) + \ 34 sizeof (sctp_hdr_t))) 35 #define SCTP_MSS_MAX_IPV6 (IP_MAXPACKET - (sizeof (ip6_t) + \ 36 sizeof (sctp_hdr_t))) 37 /* Max of the above */ 38 #define SCTP_MSS_MAX SCTP_MSS_MAX_IPV4 39 40 /* 41 * All of these are alterable, within the min/max values given, at run time. 42 * 43 * Note: All those tunables which do not start with "sctp_" are Committed and 44 * therefore are public. See PSARC 2009/306. 45 */ 46 mod_prop_info_t sctp_propinfo_tbl[] = { 47 { "sctp_max_init_retr", MOD_PROTO_SCTP, 48 mod_set_uint32, mod_get_uint32, 49 {0, 128, 8}, {8} }, 50 51 { "sctp_pa_max_retr", MOD_PROTO_SCTP, 52 mod_set_uint32, mod_get_uint32, 53 {1, 128, 10}, {10} }, 54 55 { "sctp_pp_max_retr", MOD_PROTO_SCTP, 56 mod_set_uint32, mod_get_uint32, 57 {1, 128, 5}, {5} }, 58 59 { "sctp_cwnd_max", MOD_PROTO_SCTP, 60 mod_set_uint32, mod_get_uint32, 61 {128, (1<<30), 1024*1024}, {1024*1024} }, 62 63 { "smallest_nonpriv_port", MOD_PROTO_SCTP, 64 mod_set_uint32, mod_get_uint32, 65 {1024, (32*1024), 1024}, {1024} }, 66 67 { "sctp_ipv4_ttl", MOD_PROTO_SCTP, 68 mod_set_uint32, mod_get_uint32, 69 {1, 255, 64}, {64} }, 70 71 { "sctp_heartbeat_interval", MOD_PROTO_SCTP, 72 mod_set_uint32, mod_get_uint32, 73 {0, 1*DAYS, 30*SECONDS}, {30*SECONDS} }, 74 75 { "sctp_initial_mtu", MOD_PROTO_SCTP, 76 mod_set_uint32, mod_get_uint32, 77 {68, 65535, 1500}, {1500} }, 78 79 { "sctp_mtu_probe_interval", MOD_PROTO_SCTP, 80 mod_set_uint32, mod_get_uint32, 81 {0, 1*DAYS, 10*MINUTES}, {10*MINUTES} }, 82 83 { "sctp_new_secret_interval", MOD_PROTO_SCTP, 84 mod_set_uint32, mod_get_uint32, 85 {0, 1*DAYS, 2*MINUTES}, {2*MINUTES} }, 86 87 /* tunable - 10 */ 88 { "sctp_deferred_ack_interval", MOD_PROTO_SCTP, 89 mod_set_uint32, mod_get_uint32, 90 {10*MS, 1*MINUTES, 100*MS}, {100*MS} }, 91 92 { "sctp_snd_lowat_fraction", MOD_PROTO_SCTP, 93 mod_set_uint32, mod_get_uint32, 94 {0, 16, 0}, {0} }, 95 96 { "sctp_ignore_path_mtu", MOD_PROTO_SCTP, 97 mod_set_boolean, mod_get_boolean, 98 {B_FALSE}, {B_FALSE} }, 99 100 { "sctp_initial_ssthresh", MOD_PROTO_SCTP, 101 mod_set_uint32, mod_get_uint32, 102 {1024, UINT32_MAX, SCTP_RECV_HIWATER}, { SCTP_RECV_HIWATER} }, 103 104 { "smallest_anon_port", MOD_PROTO_SCTP, 105 mod_set_uint32, mod_get_uint32, 106 {1024, ULP_MAX_PORT, 32*1024}, {32*1024} }, 107 108 { "largest_anon_port", MOD_PROTO_SCTP, 109 mod_set_uint32, mod_get_uint32, 110 {1024, ULP_MAX_PORT, ULP_MAX_PORT}, {ULP_MAX_PORT} }, 111 112 { "send_maxbuf", MOD_PROTO_SCTP, 113 mod_set_uint32, mod_get_uint32, 114 {SCTP_XMIT_LOWATER, (1<<30), SCTP_XMIT_HIWATER}, 115 {SCTP_XMIT_HIWATER} }, 116 117 { "sctp_xmit_lowat", MOD_PROTO_SCTP, 118 mod_set_uint32, mod_get_uint32, 119 {SCTP_XMIT_LOWATER, (1<<30), SCTP_XMIT_LOWATER}, 120 {SCTP_XMIT_LOWATER} }, 121 122 { "recv_maxbuf", MOD_PROTO_SCTP, 123 mod_set_uint32, mod_get_uint32, 124 {SCTP_RECV_LOWATER, (1<<30), SCTP_RECV_HIWATER}, 125 {SCTP_RECV_HIWATER} }, 126 127 { "sctp_max_buf", MOD_PROTO_SCTP, 128 mod_set_uint32, mod_get_uint32, 129 {8192, (1<<30), 1024*1024}, {1024*1024} }, 130 131 /* tunable - 20 */ 132 { "sctp_rtt_updates", MOD_PROTO_SCTP, 133 mod_set_uint32, mod_get_uint32, 134 {0, 65536, 20}, {20} }, 135 136 { "sctp_ipv6_hoplimit", MOD_PROTO_SCTP, 137 mod_set_uint32, mod_get_uint32, 138 {0, IPV6_MAX_HOPS, IPV6_DEFAULT_HOPS}, {IPV6_DEFAULT_HOPS} }, 139 140 { "sctp_rto_min", MOD_PROTO_SCTP, 141 mod_set_uint32, mod_get_uint32, 142 {500*MS, 60*SECONDS, 1*SECONDS}, {1*SECONDS} }, 143 144 { "sctp_rto_max", MOD_PROTO_SCTP, 145 mod_set_uint32, mod_get_uint32, 146 {1*SECONDS, 60000*SECONDS, 60*SECONDS}, {60*SECONDS} }, 147 148 { "sctp_rto_initial", MOD_PROTO_SCTP, 149 mod_set_uint32, mod_get_uint32, 150 {1*SECONDS, 60000*SECONDS, 3*SECONDS}, {3*SECONDS} }, 151 152 { "sctp_cookie_life", MOD_PROTO_SCTP, 153 mod_set_uint32, mod_get_uint32, 154 {10*MS, 60000*SECONDS, 60*SECONDS}, {60*SECONDS} }, 155 156 { "sctp_max_in_streams", MOD_PROTO_SCTP, 157 mod_set_uint32, mod_get_uint32, 158 {1, UINT16_MAX, 32}, {32} }, 159 160 { "sctp_initial_out_streams", MOD_PROTO_SCTP, 161 mod_set_uint32, mod_get_uint32, 162 {1, UINT16_MAX, 32}, {32} }, 163 164 { "sctp_shutack_wait_bound", MOD_PROTO_SCTP, 165 mod_set_uint32, mod_get_uint32, 166 {0, 300*SECONDS, 60*SECONDS}, {60*SECONDS} }, 167 168 { "sctp_maxburst", MOD_PROTO_SCTP, 169 mod_set_uint32, mod_get_uint32, 170 {2, 8, 4}, {4} }, 171 172 /* tunable - 30 */ 173 { "sctp_addip_enabled", MOD_PROTO_SCTP, 174 mod_set_boolean, mod_get_boolean, 175 {B_FALSE}, {B_FALSE} }, 176 177 { "sctp_recv_hiwat_minmss", MOD_PROTO_SCTP, 178 mod_set_uint32, mod_get_uint32, 179 {1, 65536, 4}, {4} }, 180 181 { "sctp_slow_start_initial", MOD_PROTO_SCTP, 182 mod_set_uint32, mod_get_uint32, 183 {1, 16, 4}, {4} }, 184 185 { "sctp_slow_start_after_idle", MOD_PROTO_SCTP, 186 mod_set_uint32, mod_get_uint32, 187 {1, 16384, 4}, {4} }, 188 189 { "sctp_prsctp_enabled", MOD_PROTO_SCTP, 190 mod_set_boolean, mod_get_boolean, 191 {B_TRUE}, {B_TRUE} }, 192 193 { "sctp_fast_rxt_thresh", MOD_PROTO_SCTP, 194 mod_set_uint32, mod_get_uint32, 195 {1, 10000, 3}, {3} }, 196 197 { "sctp_deferred_acks_max", MOD_PROTO_SCTP, 198 mod_set_uint32, mod_get_uint32, 199 { 1, 16, 2}, {2} }, 200 201 /* 202 * sctp_wroff_xtra is the extra space in front of SCTP/IP header 203 * for link layer header. It has to be a multiple of 8. 204 */ 205 { "sctp_wroff_xtra", MOD_PROTO_SCTP, 206 mod_set_aligned, mod_get_uint32, 207 {0, 256, 32}, {32} }, 208 209 { "extra_priv_ports", MOD_PROTO_SCTP, 210 mod_set_extra_privports, mod_get_extra_privports, 211 {1, ULP_MAX_PORT, 0}, {0} }, 212 213 { "?", MOD_PROTO_SCTP, NULL, mod_get_allprop, {0}, {0} }, 214 215 { NULL, 0, NULL, NULL, {0}, {0} } 216 }; 217 218 int sctp_propinfo_count = A_CNT(sctp_propinfo_tbl); 219