ip.c revision 331722
1/*- 2 * Copyright (c) 1980, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31 32__FBSDID("$FreeBSD: stable/11/usr.bin/systat/ip.c 331722 2018-03-29 02:50:57Z eadler $"); 33 34#ifdef lint 35static const char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 36#endif 37 38/* From: 39 "Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp" 40*/ 41 42#include <sys/param.h> 43#include <sys/types.h> 44#include <sys/socket.h> 45#include <sys/sysctl.h> 46 47#include <netinet/in.h> 48#include <netinet/in_systm.h> 49#include <netinet/ip.h> 50#include <netinet/ip_var.h> 51#include <netinet/udp.h> 52#include <netinet/udp_var.h> 53 54#include <stdlib.h> 55#include <string.h> 56#include <paths.h> 57 58#include "systat.h" 59#include "extern.h" 60#include "mode.h" 61 62struct stat { 63 struct ipstat i; 64 struct udpstat u; 65}; 66 67static struct stat curstat, initstat, oldstat; 68 69/*- 70--0 1 2 3 4 5 6 7 71--0123456789012345678901234567890123456789012345678901234567890123456789012345 7200 IP Input IP Output 7301999999999 total packets received 999999999 total packets sent 7402999999999 - with bad checksums 999999999 - generated locally 7503999999999 - too short for header 999999999 - output drops 7604999999999 - too short for data 999999999 output fragments generated 7705999999999 - with invalid hlen 999999999 - fragmentation failed 7806999999999 - with invalid length 999999999 destinations unreachable 7907999999999 - with invalid version 999999999 packets output via raw IP 8008999999999 - jumbograms 8109999999999 total fragments received UDP Statistics 8210999999999 - fragments dropped 999999999 total input packets 8311999999999 - fragments timed out 999999999 - too short for header 8412999999999 - packets reassembled ok 999999999 - invalid checksum 8513999999999 packets forwarded 999999999 - no checksum 8614999999999 - unreachable dests 999999999 - invalid length 8715999999999 - redirects generated 999999999 - no socket for dest port 8816999999999 option errors 999999999 - no socket for broadcast 8917999999999 unwanted multicasts 999999999 - socket buffer full 9018999999999 delivered to upper layer 999999999 total output packets 91--0123456789012345678901234567890123456789012345678901234567890123456789012345 92--0 1 2 3 4 5 6 7 93*/ 94 95WINDOW * 96openip(void) 97{ 98 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 99} 100 101void 102closeip(WINDOW *w) 103{ 104 if (w == NULL) 105 return; 106 wclear(w); 107 wrefresh(w); 108 delwin(w); 109} 110 111void 112labelip(void) 113{ 114 wmove(wnd, 0, 0); wclrtoeol(wnd); 115#define L(row, str) mvwprintw(wnd, row, 10, str) 116#define R(row, str) mvwprintw(wnd, row, 45, str); 117 L(0, "IP Input"); R(0, "IP Output"); 118 L(1, "total packets received"); R(1, "total packets sent"); 119 L(2, "- with bad checksums"); R(2, "- generated locally"); 120 L(3, "- too short for header"); R(3, "- output drops"); 121 L(4, "- too short for data"); R(4, "output fragments generated"); 122 L(5, "- with invalid hlen"); R(5, "- fragmentation failed"); 123 L(6, "- with invalid length"); R(6, "destinations unreachable"); 124 L(7, "- with invalid version"); R(7, "packets output via raw IP"); 125 L(8, "- jumbograms"); 126 L(9, "total fragments received"); R(9, "UDP Statistics"); 127 L(10, "- fragments dropped"); R(10, "total input packets"); 128 L(11, "- fragments timed out"); R(11, "- too short for header"); 129 L(12, "- packets reassembled ok"); R(12, "- invalid checksum"); 130 L(13, "packets forwarded"); R(13, "- no checksum"); 131 L(14, "- unreachable dests"); R(14, "- invalid length"); 132 L(15, "- redirects generated"); R(15, "- no socket for dest port"); 133 L(16, "option errors"); R(16, "- no socket for broadcast"); 134 L(17, "unwanted multicasts"); R(17, "- socket buffer full"); 135 L(18, "delivered to upper layer"); R(18, "total output packets"); 136#undef L 137#undef R 138} 139 140static void 141domode(struct stat *ret) 142{ 143 const struct stat *sub; 144 int divisor = 1; 145 146 switch(currentmode) { 147 case display_RATE: 148 sub = &oldstat; 149 divisor = (delay > 1000000) ? delay / 1000000 : 1; 150 break; 151 case display_DELTA: 152 sub = &oldstat; 153 break; 154 case display_SINCE: 155 sub = &initstat; 156 break; 157 default: 158 *ret = curstat; 159 return; 160 } 161#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor 162 DO(i.ips_total); 163 DO(i.ips_badsum); 164 DO(i.ips_tooshort); 165 DO(i.ips_toosmall); 166 DO(i.ips_badhlen); 167 DO(i.ips_badlen); 168 DO(i.ips_fragments); 169 DO(i.ips_fragdropped); 170 DO(i.ips_fragtimeout); 171 DO(i.ips_forward); 172 DO(i.ips_cantforward); 173 DO(i.ips_redirectsent); 174 DO(i.ips_noproto); 175 DO(i.ips_delivered); 176 DO(i.ips_localout); 177 DO(i.ips_odropped); 178 DO(i.ips_reassembled); 179 DO(i.ips_fragmented); 180 DO(i.ips_ofragments); 181 DO(i.ips_cantfrag); 182 DO(i.ips_badoptions); 183 DO(i.ips_noroute); 184 DO(i.ips_badvers); 185 DO(i.ips_rawout); 186 DO(i.ips_toolong); 187 DO(i.ips_notmember); 188 DO(u.udps_ipackets); 189 DO(u.udps_hdrops); 190 DO(u.udps_badsum); 191 DO(u.udps_nosum); 192 DO(u.udps_badlen); 193 DO(u.udps_noport); 194 DO(u.udps_noportbcast); 195 DO(u.udps_fullsock); 196 DO(u.udps_opackets); 197#undef DO 198} 199 200void 201showip(void) 202{ 203 struct stat stats; 204 u_long totalout; 205 206 domode(&stats); 207 totalout = stats.i.ips_forward + stats.i.ips_localout; 208 209#define DO(stat, row, col) \ 210 mvwprintw(wnd, row, col, "%9lu", stats.stat) 211 212 DO(i.ips_total, 1, 0); 213 mvwprintw(wnd, 1, 35, "%9lu", totalout); 214 DO(i.ips_badsum, 2, 0); 215 DO(i.ips_localout, 2, 35); 216 DO(i.ips_tooshort, 3, 0); 217 DO(i.ips_odropped, 3, 35); 218 DO(i.ips_toosmall, 4, 0); 219 DO(i.ips_ofragments, 4, 35); 220 DO(i.ips_badhlen, 5, 0); 221 DO(i.ips_cantfrag, 5, 35); 222 DO(i.ips_badlen, 6, 0); 223 DO(i.ips_noroute, 6, 35); 224 DO(i.ips_badvers, 7, 0); 225 DO(i.ips_rawout, 7, 35); 226 DO(i.ips_toolong, 8, 0); 227 DO(i.ips_fragments, 9, 0); 228 DO(i.ips_fragdropped, 10, 0); 229 DO(u.udps_ipackets, 10, 35); 230 DO(i.ips_fragtimeout, 11, 0); 231 DO(u.udps_hdrops, 11, 35); 232 DO(i.ips_reassembled, 12, 0); 233 DO(u.udps_badsum, 12, 35); 234 DO(i.ips_forward, 13, 0); 235 DO(u.udps_nosum, 13, 35); 236 DO(i.ips_cantforward, 14, 0); 237 DO(u.udps_badlen, 14, 35); 238 DO(i.ips_redirectsent, 15, 0); 239 DO(u.udps_noport, 15, 35); 240 DO(i.ips_badoptions, 16, 0); 241 DO(u.udps_noportbcast, 16, 35); 242 DO(i.ips_notmember, 17, 0); 243 DO(u.udps_fullsock, 17, 35); 244 DO(i.ips_delivered, 18, 0); 245 DO(u.udps_opackets, 18, 35); 246#undef DO 247} 248 249int 250initip(void) 251{ 252 size_t len; 253 int name[4]; 254 255 name[0] = CTL_NET; 256 name[1] = PF_INET; 257 name[2] = IPPROTO_IP; 258 name[3] = IPCTL_STATS; 259 260 len = 0; 261 if (sysctl(name, 4, 0, &len, 0, 0) < 0) { 262 error("sysctl getting ipstat size failed"); 263 return 0; 264 } 265 if (len > sizeof curstat.i) { 266 error("ipstat structure has grown--recompile systat!"); 267 return 0; 268 } 269 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) { 270 error("sysctl getting ipstat failed"); 271 return 0; 272 } 273 name[2] = IPPROTO_UDP; 274 name[3] = UDPCTL_STATS; 275 276 len = 0; 277 if (sysctl(name, 4, 0, &len, 0, 0) < 0) { 278 error("sysctl getting udpstat size failed"); 279 return 0; 280 } 281 if (len > sizeof curstat.u) { 282 error("ipstat structure has grown--recompile systat!"); 283 return 0; 284 } 285 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) { 286 error("sysctl getting udpstat failed"); 287 return 0; 288 } 289 oldstat = initstat; 290 return 1; 291} 292 293void 294resetip(void) 295{ 296 size_t len; 297 int name[4]; 298 299 name[0] = CTL_NET; 300 name[1] = PF_INET; 301 name[2] = IPPROTO_IP; 302 name[3] = IPCTL_STATS; 303 304 len = sizeof initstat.i; 305 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) { 306 error("sysctl getting ipstat failed"); 307 } 308 name[2] = IPPROTO_UDP; 309 name[3] = UDPCTL_STATS; 310 311 len = sizeof initstat.u; 312 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) { 313 error("sysctl getting udpstat failed"); 314 } 315 oldstat = initstat; 316} 317 318void 319fetchip(void) 320{ 321 int name[4]; 322 size_t len; 323 324 oldstat = curstat; 325 name[0] = CTL_NET; 326 name[1] = PF_INET; 327 name[2] = IPPROTO_IP; 328 name[3] = IPCTL_STATS; 329 len = sizeof curstat.i; 330 331 if (sysctl(name, 4, &curstat.i, &len, 0, 0) < 0) 332 return; 333 name[2] = IPPROTO_UDP; 334 name[3] = UDPCTL_STATS; 335 len = sizeof curstat.u; 336 337 if (sysctl(name, 4, &curstat.u, &len, 0, 0) < 0) 338 return; 339} 340