workbench/network/common/C/netstat/ns.c

   1 /*
   2  * Copyright (c) 1983, 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * Copyright (c) 2006
   5  *      Pavel Fedin
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36
  37 /* "@(#)ns.c        8.1 (Berkeley) 6/6/93" */
  38
  39 #ifdef NETNS
  40 #include <sys/param.h>
  41 #include <sys/socket.h>
  42 #include <sys/socketvar.h>
  43 #include <sys/mbuf.h>
  44 #include <sys/protosw.h>
  45
  46 #include <net/route.h>
  47 #include <net/if.h>
  48
  49 #include <netinet/tcp_fsm.h>
  50
  51 #include <netns/ns.h>
  52 #include <netns/ns_pcb.h>
  53 #include <netns/idp.h>
  54 #include <netns/idp_var.h>
  55 #include <netns/ns_error.h>
  56 #include <netns/sp.h>
  57 #include <netns/spidp.h>
  58 #include <netns/spp_timer.h>
  59 #include <netns/spp_var.h>
  60 #define SANAMES
  61 #include <netns/spp_debug.h>
  62
  63 #include <nlist.h>
  64 #include <errno.h>
  65 #include <stdio.h>
  66 #include <string.h>
  67 #include "netstat.h"
  68
  69 struct  nspcb nspcb;
  70 struct  sppcb sppcb;
  71 struct  socket sockb;
  72
  73 static char *ns_prpr __P((struct ns_addr *));
  74 static void ns_erputil __P((int, int));
  75
  76 static  int first = 1;
  77
  78 /*
  79  * Print a summary of connections related to a Network Systems
  80  * protocol.  For SPP, also give state of connection.
  81  * Listening processes (aflag) are suppressed unless the
  82  * -a (all) flag is specified.
  83  */
  84
  85 void
  86 nsprotopr(off, name)
  87         u_long off;
  88         char *name;
  89 {
  90         struct nspcb cb;
  91         register struct nspcb *prev, *next;
  92         int isspp;
  93
  94         if (off == 0)
  95                 return;
  96         isspp = strcmp(name, "spp") == 0;
  97         kread(off, (char *)&cb, sizeof (struct nspcb));
  98         nspcb = cb;
  99         prev = (struct nspcb *)off;
 100         if (nspcb.nsp_next == (struct nspcb *)off)
 101                 return;
 102         for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
 103                 u_long ppcb;
 104
 105                 next = nspcb.nsp_next;
 106                 kread((u_long)next, (char *)&nspcb, sizeof (nspcb));
 107                 if (nspcb.nsp_prev != prev) {
 108                         printf("???\n");
 109                         break;
 110                 }
 111                 if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
 112                         continue;
 113                 }
 114                 kread((u_long)nspcb.nsp_socket,
 115                                 (char *)&sockb, sizeof (sockb));
 116                 ppcb = (u_long) nspcb.nsp_pcb;
 117                 if (ppcb) {
 118                         if (isspp) {
 119                                 kread(ppcb, (char *)&sppcb, sizeof (sppcb));
 120                         } else continue;
 121                 } else
 122                         if (isspp) continue;
 123                 if (first) {
 124                         printf("Active NS connections");
 125                         if (aflag)
 126                                 printf(" (including servers)");
 127                         putchar('\n');
 128                         if (Aflag)
 129                                 printf("%-8.8s ", "PCB");
 130                         printf(Aflag ?
 131                                 "%-5.5s %-6.6s %-6.6s  %-18.18s %-18.18s %s\n" :
 132                                 "%-5.5s %-6.6s %-6.6s  %-22.22s %-22.22s %s\n",
 133                                 "Proto", "Recv-Q", "Send-Q",
 134                                 "Local Address", "Foreign Address", "(state)");
 135                         first = 0;
 136                 }
 137                 if (Aflag)
 138                         printf("%8x ", ppcb);
 139                 printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
 140                         sockb.so_snd.sb_cc);
 141                 printf("  %-22.22s", ns_prpr(&nspcb.nsp_laddr));
 142                 printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
 143                 if (isspp) {
 144                         extern char *tcpstates[];
 145                         if (sppcb.s_state >= TCP_NSTATES)
 146                                 printf(" %d", sppcb.s_state);
 147                         else
 148                                 printf(" %s", tcpstates[sppcb.s_state]);
 149                 }
 150                 putchar('\n');
 151                 prev = next;
 152         }
 153 }
 154 #define ANY(x,y,z) \
 155         ((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
 156
 157 /*
 158  * Dump SPP statistics structure.
 159  */
 160 void
 161 spp_stats(off, name)
 162         u_long off;
 163         char *name;
 164 {
 165         struct spp_istat spp_istat;
 166 #define sppstat spp_istat.newstats
 167
 168         if (off == 0)
 169                 return;
 170         kread(off, (char *)&spp_istat, sizeof (spp_istat));
 171         printf("%s:\n", name);
 172         ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
 173         ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
 174         ANY(spp_istat.nonucn, "connection",
 175             " dropped due to inability to connect");
 176         ANY(spp_istat.noconn, "connection",
 177             " dropped due to inability to connect");
 178         ANY(spp_istat.notme, "connection",
 179             " incompleted due to mismatched id's");
 180         ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
 181         ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
 182         ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
 183         ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
 184         ANY(sppstat.spps_connattempt, "connection", " initiated");
 185         ANY(sppstat.spps_accepts, "connection", " accepted");
 186         ANY(sppstat.spps_connects, "connection", " established");
 187         ANY(sppstat.spps_drops, "connection", " dropped");
 188         ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
 189         ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
 190         ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
 191         ANY(sppstat.spps_rttupdated, "time", " we got rtt");
 192         ANY(sppstat.spps_delack, "delayed ack", " sent");
 193         ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
 194         ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
 195         ANY(sppstat.spps_persisttimeo, "persist timeout", "");
 196         ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
 197         ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
 198         ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
 199         ANY(sppstat.spps_sndtotal, "total packet", " sent");
 200         ANY(sppstat.spps_sndpack, "data packet", " sent");
 201         ANY(sppstat.spps_sndbyte, "data byte", " sent");
 202         ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
 203         ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
 204         ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
 205         ANY(sppstat.spps_sndprobe, "window probe", " sent");
 206         ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
 207         ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
 208         ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
 209         ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
 210         ANY(sppstat.spps_rcvtotal, "total packet", " received");
 211         ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
 212         ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
 213         ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
 214         ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
 215         ANY(sppstat.spps_rcvshort, "packet", " received too short");
 216         ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
 217         ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
 218         ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
 219         ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
 220         ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
 221         ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
 222         ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
 223         ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
 224         ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
 225         ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
 226         ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
 227         ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
 228         ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
 229         ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
 230         ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
 231 }
 232 #undef ANY
 233 #define ANY(x,y,z)  ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
 234
 235 /*
 236  * Dump IDP statistics structure.
 237  */
 238 void
 239 idp_stats(off, name)
 240         u_long off;
 241         char *name;
 242 {
 243         struct idpstat idpstat;
 244
 245         if (off == 0)
 246                 return;
 247         kread(off, (char *)&idpstat, sizeof (idpstat));
 248         printf("%s:\n", name);
 249         ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
 250         ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
 251         ANY(idpstat.idps_badsum, "packet", " with bad checksums");
 252 }
 253
 254 static  struct {
 255         u_short code;
 256         char *name;
 257         char *where;
 258 } ns_errnames[] = {
 259         {0, "Unspecified Error", " at Destination"},
 260         {1, "Bad Checksum", " at Destination"},
 261         {2, "No Listener", " at Socket"},
 262         {3, "Packet", " Refused due to lack of space at Destination"},
 263         {01000, "Unspecified Error", " while gatewayed"},
 264         {01001, "Bad Checksum", " while gatewayed"},
 265         {01002, "Packet", " forwarded too many times"},
 266         {01003, "Packet", " too large to be forwarded"},
 267         {-1, 0, 0},
 268 };
 269
 270 /*
 271  * Dump NS Error statistics structure.
 272  */
 273 /*ARGSUSED*/
 274 void
 275 nserr_stats(off, name)
 276         u_long off;
 277         char *name;
 278 {
 279         struct ns_errstat ns_errstat;
 280         register int j;
 281         register int histoprint = 1;
 282         int z;
 283
 284         if (off == 0)
 285                 return;
 286         kread(off, (char *)&ns_errstat, sizeof (ns_errstat));
 287         printf("NS error statistics:\n");
 288         ANY(ns_errstat.ns_es_error, "call", " to ns_error");
 289         ANY(ns_errstat.ns_es_oldshort, "error",
 290                 " ignored due to insufficient addressing");
 291         ANY(ns_errstat.ns_es_oldns_err, "error request",
 292                 " in response to error packets");
 293         ANY(ns_errstat.ns_es_tooshort, "error packet",
 294                 " received incomplete");
 295         ANY(ns_errstat.ns_es_badcode, "error packet",
 296                 " received of unknown type");
 297         for(j = 0; j < NS_ERR_MAX; j ++) {
 298                 z = ns_errstat.ns_es_outhist[j];
 299                 if (z && histoprint) {
 300                         printf("Output Error Histogram:\n");
 301                         histoprint = 0;
 302                 }
 303                 ns_erputil(z, ns_errstat.ns_es_codes[j]);
 304
 305         }
 306         histoprint = 1;
 307         for(j = 0; j < NS_ERR_MAX; j ++) {
 308                 z = ns_errstat.ns_es_inhist[j];
 309                 if (z && histoprint) {
 310                         printf("Input Error Histogram:\n");
 311                         histoprint = 0;
 312                 }
 313                 ns_erputil(z, ns_errstat.ns_es_codes[j]);
 314         }
 315 }
 316
 317 static void
 318 ns_erputil(z, c)
 319         int z, c;
 320 {
 321         int j;
 322         char codebuf[30];
 323         char *name, *where;
 324
 325         for(j = 0;; j ++) {
 326                 if ((name = ns_errnames[j].name) == 0)
 327                         break;
 328                 if (ns_errnames[j].code == c)
 329                         break;
 330         }
 331         if (name == 0)  {
 332                 if (c > 01000)
 333                         where = "in transit";
 334                 else
 335                         where = "at destination";
 336                 sprintf(codebuf, "Unknown XNS error code 0%o", c);
 337                 name = codebuf;
 338         } else
 339                 where =  ns_errnames[j].where;
 340         ANY(z, name, where);
 341 }
 342
 343 static struct sockaddr_ns ssns = {AF_NS};
 344
 345 static
 346 char *ns_prpr(x)
 347         struct ns_addr *x;
 348 {
 349         struct sockaddr_ns *sns = &ssns;
 350
 351         sns->sns_addr = *x;
 352         return(ns_print((struct sockaddr *)sns));
 353 }
 354 #endif
 355