tcp.c revision 1.9.2.2
1 1.9.2.2 wiz /* $NetBSD: tcp.c,v 1.9.2.2 2001/06/12 15:17:30 wiz Exp $ */ 2 1.9.2.2 wiz 3 1.9.2.2 wiz /* 4 1.9.2.2 wiz * Copyright (c) 1999, 2000 Andrew Doran <ad (at) NetBSD.org> 5 1.9.2.2 wiz * All rights reserved. 6 1.9.2.2 wiz * 7 1.9.2.2 wiz * Redistribution and use in source and binary forms, with or without 8 1.9.2.2 wiz * modification, are permitted provided that the following conditions 9 1.9.2.2 wiz * are met: 10 1.9.2.2 wiz * 1. Redistributions of source code must retain the above copyright 11 1.9.2.2 wiz * notice, this list of conditions and the following disclaimer. 12 1.9.2.2 wiz * 2. Redistributions in binary form must reproduce the above copyright 13 1.9.2.2 wiz * notice, this list of conditions and the following disclaimer in the 14 1.9.2.2 wiz * documentation and/or other materials provided with the distribution. 15 1.9.2.2 wiz * 16 1.9.2.2 wiz * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.9.2.2 wiz * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.9.2.2 wiz * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.9.2.2 wiz * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.9.2.2 wiz * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.9.2.2 wiz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.9.2.2 wiz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.9.2.2 wiz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.9.2.2 wiz * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.9.2.2 wiz * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.9.2.2 wiz * SUCH DAMAGE. 27 1.9.2.2 wiz * 28 1.9.2.2 wiz */ 29 1.9.2.2 wiz 30 1.9.2.2 wiz #include <sys/cdefs.h> 31 1.9.2.2 wiz #ifndef lint 32 1.9.2.2 wiz __RCSID("$NetBSD: tcp.c,v 1.9.2.2 2001/06/12 15:17:30 wiz Exp $"); 33 1.9.2.2 wiz #endif /* not lint */ 34 1.9.2.2 wiz 35 1.9.2.2 wiz #include <sys/param.h> 36 1.9.2.2 wiz #include <sys/sysctl.h> 37 1.9.2.2 wiz 38 1.9.2.2 wiz #include <netinet/in.h> 39 1.9.2.2 wiz #include <netinet/in_systm.h> 40 1.9.2.2 wiz #include <netinet/ip.h> 41 1.9.2.2 wiz #include <netinet/ip_var.h> 42 1.9.2.2 wiz #include <netinet/tcp.h> 43 1.9.2.2 wiz #include <netinet/tcp_timer.h> 44 1.9.2.2 wiz #include <netinet/tcp_var.h> 45 1.9.2.2 wiz 46 1.9.2.2 wiz #include <kvm.h> 47 1.9.2.2 wiz #include <string.h> 48 1.9.2.2 wiz 49 1.9.2.2 wiz #include "systat.h" 50 1.9.2.2 wiz #include "extern.h" 51 1.9.2.2 wiz 52 1.9.2.2 wiz #define LHD(row, str) mvwprintw(wnd, row, 10, str) 53 1.9.2.2 wiz #define RHD(row, str) mvwprintw(wnd, row, 45, str) 54 1.9.2.2 wiz #define SHOW(row, col, stat) \ 55 1.9.2.2 wiz mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat.stat) 56 1.9.2.2 wiz 57 1.9.2.2 wiz enum update { 58 1.9.2.2 wiz UPDATE_TIME, 59 1.9.2.2 wiz UPDATE_BOOT, 60 1.9.2.2 wiz UPDATE_RUN, 61 1.9.2.2 wiz }; 62 1.9.2.2 wiz 63 1.9.2.2 wiz static enum update update = UPDATE_TIME; 64 1.9.2.2 wiz static struct tcpstat curstat; 65 1.9.2.2 wiz static struct tcpstat newstat; 66 1.9.2.2 wiz static struct tcpstat oldstat; 67 1.9.2.2 wiz 68 1.9.2.2 wiz static struct nlist namelist[] = { 69 1.9.2.2 wiz { "_tcpstat" }, 70 1.9.2.2 wiz { "" } 71 1.9.2.2 wiz }; 72 1.9.2.2 wiz 73 1.9.2.2 wiz WINDOW * 74 1.9.2.2 wiz opentcp(void) 75 1.9.2.2 wiz { 76 1.9.2.2 wiz 77 1.9.2.2 wiz return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 78 1.9.2.2 wiz } 79 1.9.2.2 wiz 80 1.9.2.2 wiz void 81 1.9.2.2 wiz closetcp(WINDOW *w) 82 1.9.2.2 wiz { 83 1.9.2.2 wiz 84 1.9.2.2 wiz if (w != NULL) { 85 1.9.2.2 wiz wclear(w); 86 1.9.2.2 wiz wrefresh(w); 87 1.9.2.2 wiz delwin(w); 88 1.9.2.2 wiz } 89 1.9.2.2 wiz } 90 1.9.2.2 wiz 91 1.9.2.2 wiz void 92 1.9.2.2 wiz labeltcp(void) 93 1.9.2.2 wiz { 94 1.9.2.2 wiz 95 1.9.2.2 wiz wmove(wnd, 0, 0); wclrtoeol(wnd); 96 1.9.2.2 wiz 97 1.9.2.2 wiz LHD(0, "connections initiated"); 98 1.9.2.2 wiz LHD(1, "connections accepted"); 99 1.9.2.2 wiz LHD(2, "connections established"); 100 1.9.2.2 wiz 101 1.9.2.2 wiz LHD(4, "connections dropped"); 102 1.9.2.2 wiz LHD(5, " in embryonic state"); 103 1.9.2.2 wiz LHD(6, " on retransmit timeout"); 104 1.9.2.2 wiz LHD(7, " by keepalive"); 105 1.9.2.2 wiz LHD(8, " by persist"); 106 1.9.2.2 wiz 107 1.9.2.2 wiz LHD(10, "potential rtt updates"); 108 1.9.2.2 wiz LHD(11, "successful rtt updates"); 109 1.9.2.2 wiz LHD(12, "delayed acks sent"); 110 1.9.2.2 wiz LHD(13, "retransmit timeouts"); 111 1.9.2.2 wiz LHD(14, "persist timeouts"); 112 1.9.2.2 wiz LHD(15, "keepalive probes"); 113 1.9.2.2 wiz LHD(16, "keepalive timeouts"); 114 1.9.2.2 wiz 115 1.9.2.2 wiz RHD(9, "total TCP packets received"); 116 1.9.2.2 wiz RHD(10, " in sequence"); 117 1.9.2.2 wiz RHD(11, " completely duplicate"); 118 1.9.2.2 wiz RHD(12, " with some duplicate data"); 119 1.9.2.2 wiz RHD(13, " out of order"); 120 1.9.2.2 wiz RHD(14, " duplicate acks"); 121 1.9.2.2 wiz RHD(15, " acks"); 122 1.9.2.2 wiz RHD(16, " window probes"); 123 1.9.2.2 wiz RHD(17, " window updates"); 124 1.9.2.2 wiz 125 1.9.2.2 wiz RHD(0, "total TCP packets sent"); 126 1.9.2.2 wiz RHD(1, " data"); 127 1.9.2.2 wiz RHD(2, " data (retransmit)"); 128 1.9.2.2 wiz RHD(3, " ack-only"); 129 1.9.2.2 wiz RHD(4, " window probes"); 130 1.9.2.2 wiz RHD(5, " window updates"); 131 1.9.2.2 wiz RHD(6, " urgent data only"); 132 1.9.2.2 wiz RHD(7, " control"); 133 1.9.2.2 wiz } 134 1.9.2.2 wiz 135 1.9.2.2 wiz void 136 1.9.2.2 wiz showtcpsyn(void) 137 1.9.2.2 wiz { 138 1.9.2.2 wiz 139 1.9.2.2 wiz SHOW(0, 0, tcps_sc_added); 140 1.9.2.2 wiz SHOW(1, 0, tcps_sc_completed); 141 1.9.2.2 wiz SHOW(2, 0, tcps_sc_timed_out); 142 1.9.2.2 wiz SHOW(3, 0, tcps_sc_dupesyn); 143 1.9.2.2 wiz SHOW(4, 0, tcps_sc_collisions); 144 1.9.2.2 wiz SHOW(5, 0, tcps_sc_retransmitted); 145 1.9.2.2 wiz SHOW(6, 0, tcps_sc_aborted); 146 1.9.2.2 wiz SHOW(7, 0, tcps_sc_overflowed); 147 1.9.2.2 wiz SHOW(8, 0, tcps_sc_reset); 148 1.9.2.2 wiz SHOW(9, 0, tcps_sc_unreach); 149 1.9.2.2 wiz SHOW(10, 0, tcps_sc_bucketoverflow); 150 1.9.2.2 wiz SHOW(11, 0, tcps_sc_dropped); 151 1.9.2.2 wiz } 152 1.9.2.2 wiz 153 1.9.2.2 wiz void 154 1.9.2.2 wiz labeltcpsyn(void) 155 1.9.2.2 wiz { 156 1.9.2.2 wiz 157 1.9.2.2 wiz wmove(wnd, 0, 0); wclrtoeol(wnd); 158 1.9.2.2 wiz LHD(0, "entries added"); 159 1.9.2.2 wiz LHD(1, "connections completed"); 160 1.9.2.2 wiz LHD(2, "entries timed out"); 161 1.9.2.2 wiz LHD(3, "duplicate SYNs received"); 162 1.9.2.2 wiz LHD(4, "hash collisions"); 163 1.9.2.2 wiz LHD(5, "retransmissions"); 164 1.9.2.2 wiz LHD(6, "entries aborted (no memory)"); 165 1.9.2.2 wiz LHD(7, "dropped (overflow)"); 166 1.9.2.2 wiz LHD(8, "dropped (RST)"); 167 1.9.2.2 wiz LHD(9, "dropped (ICMP UNRCH)"); 168 1.9.2.2 wiz LHD(10, "dropped (bucket overflow)"); 169 1.9.2.2 wiz LHD(11, "dropped (unreachable/no memory)"); 170 1.9.2.2 wiz } 171 1.9.2.2 wiz 172 1.9.2.2 wiz void 173 1.9.2.2 wiz showtcp(void) 174 1.9.2.2 wiz { 175 1.9.2.2 wiz 176 1.9.2.2 wiz SHOW(0, 0, tcps_connattempt); 177 1.9.2.2 wiz SHOW(1, 0, tcps_accepts); 178 1.9.2.2 wiz SHOW(2, 0, tcps_connects); 179 1.9.2.2 wiz 180 1.9.2.2 wiz SHOW(4, 0, tcps_drops); 181 1.9.2.2 wiz SHOW(5, 0, tcps_conndrops); 182 1.9.2.2 wiz SHOW(6, 0, tcps_timeoutdrop); 183 1.9.2.2 wiz SHOW(7, 0, tcps_keepdrops); 184 1.9.2.2 wiz SHOW(8, 0, tcps_persistdrops); 185 1.9.2.2 wiz 186 1.9.2.2 wiz SHOW(10, 0, tcps_segstimed); 187 1.9.2.2 wiz SHOW(11, 0, tcps_rttupdated); 188 1.9.2.2 wiz SHOW(12, 0, tcps_delack); 189 1.9.2.2 wiz SHOW(13, 0, tcps_rexmttimeo); 190 1.9.2.2 wiz SHOW(14, 0, tcps_persisttimeo); 191 1.9.2.2 wiz SHOW(15, 0, tcps_keepprobe); 192 1.9.2.2 wiz SHOW(16, 0, tcps_keeptimeo); 193 1.9.2.2 wiz 194 1.9.2.2 wiz SHOW(0, 35, tcps_sndtotal); 195 1.9.2.2 wiz SHOW(1, 35, tcps_sndpack); 196 1.9.2.2 wiz SHOW(2, 35, tcps_sndrexmitpack); 197 1.9.2.2 wiz 198 1.9.2.2 wiz SHOW(3, 35, tcps_sndacks); 199 1.9.2.2 wiz SHOW(4, 35, tcps_sndprobe); 200 1.9.2.2 wiz SHOW(5, 35, tcps_sndwinup); 201 1.9.2.2 wiz SHOW(6, 35, tcps_sndurg); 202 1.9.2.2 wiz SHOW(7, 35, tcps_sndctrl); 203 1.9.2.2 wiz 204 1.9.2.2 wiz SHOW(9, 35, tcps_rcvtotal); 205 1.9.2.2 wiz SHOW(10, 35, tcps_rcvpack); 206 1.9.2.2 wiz SHOW(11, 35, tcps_rcvduppack); 207 1.9.2.2 wiz SHOW(12, 35, tcps_rcvpartduppack); 208 1.9.2.2 wiz SHOW(13, 35, tcps_rcvoopack); 209 1.9.2.2 wiz SHOW(14, 35, tcps_rcvdupack); 210 1.9.2.2 wiz SHOW(15, 35, tcps_rcvackpack); 211 1.9.2.2 wiz SHOW(16, 35, tcps_rcvwinprobe); 212 1.9.2.2 wiz SHOW(17, 35, tcps_rcvwinupd); 213 1.9.2.2 wiz } 214 1.9.2.2 wiz 215 1.9.2.2 wiz int 216 1.9.2.2 wiz inittcp(void) 217 1.9.2.2 wiz { 218 1.9.2.2 wiz 219 1.9.2.2 wiz if (namelist[0].n_type == 0) { 220 1.9.2.2 wiz if (kvm_nlist(kd, namelist)) { 221 1.9.2.2 wiz nlisterr(namelist); 222 1.9.2.2 wiz return(0); 223 1.9.2.2 wiz } 224 1.9.2.2 wiz if (namelist[0].n_type == 0) { 225 1.9.2.2 wiz error("No namelist"); 226 1.9.2.2 wiz return(0); 227 1.9.2.2 wiz } 228 1.9.2.2 wiz } 229 1.9.2.2 wiz return 1; 230 1.9.2.2 wiz } 231 1.9.2.2 wiz 232 1.9.2.2 wiz void 233 1.9.2.2 wiz fetchtcp(void) 234 1.9.2.2 wiz { 235 1.9.2.2 wiz 236 1.9.2.2 wiz KREAD((void *)namelist[0].n_value, &newstat, sizeof(newstat)); 237 1.9.2.2 wiz 238 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_connattempt); 239 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_accepts); 240 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_connects); 241 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_drops); 242 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_conndrops); 243 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_timeoutdrop); 244 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_keepdrops); 245 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_persistdrops); 246 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_segstimed); 247 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rttupdated); 248 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_delack); 249 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rexmttimeo); 250 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_persisttimeo); 251 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_keepprobe); 252 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_keeptimeo); 253 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndtotal); 254 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndpack); 255 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndrexmitpack); 256 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndacks); 257 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndprobe); 258 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndwinup); 259 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndurg); 260 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_sndctrl); 261 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvtotal); 262 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvpack); 263 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvduppack); 264 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvpartduppack); 265 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvoopack); 266 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvdupack); 267 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvackpack); 268 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvwinprobe); 269 1.9.2.2 wiz ADJINETCTR(curstat, oldstat, newstat, tcps_rcvwinupd); 270 1.9.2.2 wiz 271 1.9.2.2 wiz if (update == UPDATE_TIME) 272 1.9.2.2 wiz memcpy(&oldstat, &newstat, sizeof(oldstat)); 273 1.9.2.2 wiz } 274 1.9.2.2 wiz 275 1.9.2.2 wiz void 276 1.9.2.2 wiz tcp_boot(char *args) 277 1.9.2.2 wiz { 278 1.9.2.2 wiz 279 1.9.2.2 wiz memset(&oldstat, 0, sizeof(oldstat)); 280 1.9.2.2 wiz update = UPDATE_BOOT; 281 1.9.2.2 wiz } 282 1.9.2.2 wiz 283 1.9.2.2 wiz void 284 1.9.2.2 wiz tcp_run(char *args) 285 1.9.2.2 wiz { 286 1.9.2.2 wiz 287 1.9.2.2 wiz if (update != UPDATE_RUN) { 288 1.9.2.2 wiz memcpy(&oldstat, &newstat, sizeof(oldstat)); 289 1.9.2.2 wiz update = UPDATE_RUN; 290 1.9.2.2 wiz } 291 1.9.2.2 wiz } 292 1.9.2.2 wiz 293 1.9.2.2 wiz void 294 1.9.2.2 wiz tcp_time(char *args) 295 1.9.2.2 wiz { 296 1.9.2.2 wiz 297 1.9.2.2 wiz if (update != UPDATE_TIME) { 298 1.9.2.2 wiz memcpy(&oldstat, &newstat, sizeof(oldstat)); 299 1.9.2.2 wiz update = UPDATE_TIME; 300 1.9.2.2 wiz } 301 1.9.2.2 wiz } 302 1.9.2.2 wiz 303 1.9.2.2 wiz void 304 1.9.2.2 wiz tcp_zero(char *args) 305 1.9.2.2 wiz { 306 1.9.2.2 wiz 307 1.9.2.2 wiz if (update == UPDATE_RUN) 308 1.9.2.2 wiz memcpy(&oldstat, &newstat, sizeof(oldstat)); 309 1.9.2.2 wiz } 310
Indexes created Tue Sep 30 17:09:57 GMT 2025