src/rx/rxdebug.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <afsconfig.h>
  11 #include <afs/param.h>
  12
  13 RCSID
  14     ("$Header$");
  15
  16 #include <sys/types.h>
  17 #include <errno.h>
  18 #ifdef AFS_NT40_ENV
  19 #include <winsock2.h>
  20 #else
  21 #include <sys/socket.h>
  22 #include <sys/file.h>
  23 #include <netdb.h>
  24 #endif
  25 #ifdef HAVE_NETINET_IN_H
  26 #include <netinet/in.h>
  27 #endif
  28 #ifdef HAVE_SYS_TIME_H
  29 #include <sys/time.h>
  30 #endif
  31 #ifdef HAVE_UNISTD_H
  32 #include <unistd.h>
  33 #endif
  34 #ifdef HAVE_STRING_H
  35 #include <string.h>
  36 #else
  37 #ifdef HAVE_STRINGS_H
  38 #include <strings.h>
  39 #endif
  40 #endif
  41 #include <sys/stat.h>
  42 #include <afs/stds.h>
  43 #include <afs/cmd.h>
  44
  45 #include <stdio.h>
  46
  47 #include "rx_user.h"
  48 #include "rx_clock.h"
  49 #include "rx_queue.h"
  50 #include "rx.h"
  51 #include "rx_globals.h"
  52
  53
  54 #define TIMEOUT     20
  55
  56 extern struct hostent *hostutil_GetHostByName();
  57
  58 static short
  59 PortNumber(aport)
  60      register char *aport;
  61 {
  62     register int tc;
  63     register short total;
  64
  65     total = 0;
  66     while (tc = *aport++) {
  67         if (tc < '0' || tc > '9')
  68             return -1;          /* bad port number */
  69         total *= 10;
  70         total += tc - (int)'0';
  71     }
  72     return htons(total);
  73 }
  74
  75 static short
  76 PortName(aname)
  77      register char *aname;
  78 {
  79     register struct servent *ts;
  80     ts = getservbyname(aname, NULL);
  81     if (!ts)
  82         return -1;
  83     return ts->s_port;          /* returns it in network byte order */
  84 }
  85
  86 int
  87 MainCommand(as, arock)
  88      char *arock;
  89      struct cmd_syndesc *as;
  90 {
  91     register int i;
  92     int s;
  93     int j;
  94     struct sockaddr_in taddr;
  95     afs_int32 host;
  96     struct in_addr hostAddr;
  97     short port;
  98     struct hostent *th;
  99     register afs_int32 code;
 100     int nodally;
 101     int allconns;
 102     int rxstats;
 103     int onlyClient, onlyServer;
 104     afs_int32 onlyHost;
 105     short onlyPort;
 106     int onlyAuth;
 107     int flag;
 108     int dallyCounter;
 109     int withSecStats;
 110     int withAllConn;
 111     int withRxStats;
 112     int withWaiters;
 113     int withIdleThreads;
 114     int withPeers;
 115     struct rx_debugStats tstats;
 116     char *portName, *hostName;
 117     struct rx_debugConn tconn;
 118     short noConns;
 119     short showPeers;
 120     int version_flag;
 121     char version[64];
 122     afs_int32 length = 64;
 123
 124     afs_uint32 supportedDebugValues = 0;
 125     afs_uint32 supportedStatValues = 0;
 126     afs_uint32 supportedConnValues = 0;
 127     afs_uint32 supportedPeerValues = 0;
 128     afs_int32 nextconn = 0;
 129     afs_int32 nextpeer = 0;
 130
 131     nodally = (as->parms[2].items ? 1 : 0);
 132     allconns = (as->parms[3].items ? 1 : 0);
 133     rxstats = (as->parms[4].items ? 1 : 0);
 134     onlyServer = (as->parms[5].items ? 1 : 0);
 135     onlyClient = (as->parms[6].items ? 1 : 0);
 136     version_flag = (as->parms[10].items ? 1 : 0);
 137     noConns = (as->parms[11].items ? 1 : 0);
 138     showPeers = (as->parms[12].items ? 1 : 0);
 139
 140     if (as->parms[0].items)
 141         hostName = as->parms[0].items->data;
 142     else
 143         hostName = NULL;
 144
 145     if (as->parms[1].items)
 146         portName = as->parms[1].items->data;
 147     else
 148         portName = NULL;
 149
 150     if (as->parms[7].items) {
 151         char *name = as->parms[7].items->data;
 152         if ((onlyPort = PortNumber(name)) == -1)
 153             onlyPort = PortName(name);
 154         if (onlyPort == -1) {
 155             printf("rxdebug: can't resolve port name %s\n", name);
 156             exit(1);
 157         }
 158     } else
 159         onlyPort = -1;
 160
 161     if (as->parms[8].items) {
 162         char *name = as->parms[8].items->data;
 163         struct hostent *th;
 164         th = hostutil_GetHostByName(name);
 165         if (!th) {
 166             printf("rxdebug: host %s not found in host table\n", name);
 167             exit(1);
 168         }
 169         memcpy(&onlyHost, th->h_addr, sizeof(afs_int32));
 170     } else
 171         onlyHost = -1;
 172
 173     if (as->parms[9].items) {
 174         char *name = as->parms[9].items->data;
 175         if (strcmp(name, "clear") == 0)
 176             onlyAuth = 0;
 177         else if (strcmp(name, "auth") == 0)
 178             onlyAuth = 1;
 179         else if (strcmp(name, "crypt") == 0)
 180             onlyAuth = 2;
 181         else if ((strcmp(name, "null") == 0) || (strcmp(name, "none") == 0)
 182                  || (strncmp(name, "noauth", 6) == 0)
 183                  || (strncmp(name, "unauth", 6) == 0))
 184             onlyAuth = -1;
 185         else {
 186             fprintf(stderr, "Unknown authentication level: %s\n", name);
 187             exit(1);
 188         }
 189     } else
 190         onlyAuth = 999;
 191
 192     /* lookup host */
 193     if (hostName) {
 194         th = hostutil_GetHostByName(hostName);
 195         if (!th) {
 196             printf("rxdebug: host %s not found in host table\n", hostName);
 197             exit(1);
 198         }
 199         memcpy(&host, th->h_addr, sizeof(afs_int32));
 200     } else
 201         host = htonl(0x7f000001);       /* IP localhost */
 202
 203     if (!portName)
 204         port = htons(7000);     /* default is fileserver */
 205     else {
 206         if ((port = PortNumber(portName)) == -1)
 207             port = PortName(portName);
 208         if (port == -1) {
 209             printf("rxdebug: can't resolve port name %s\n", portName);
 210             exit(1);
 211         }
 212     }
 213
 214     dallyCounter = 0;
 215
 216     hostAddr.s_addr = host;
 217     printf("Trying %s (port %d):\n", inet_ntoa(hostAddr), ntohs(port));
 218     s = socket(AF_INET, SOCK_DGRAM, 0);
 219     taddr.sin_family = AF_INET;
 220     taddr.sin_port = 0;
 221     taddr.sin_addr.s_addr = 0;
 222 #ifdef STRUCT_SOCKADDR_HAS_SA_LEN
 223     taddr.sin_len = sizeof(struct sockaddr_in);
 224 #endif
 225     code = bind(s, (struct sockaddr *)&taddr, sizeof(struct sockaddr_in));
 226     if (code) {
 227         perror("bind");
 228         exit(1);
 229     }
 230
 231     if (version_flag) {
 232
 233         code = rx_GetServerVersion(s, host, port, length, version);
 234         if (code < 0) {
 235             printf("get version call failed with code %d, errno %d\n", code,
 236                    errno);
 237             exit(1);
 238         }
 239         printf("AFS version: %s\n", version);
 240         fflush(stdout);
 241
 242         exit(0);
 243
 244     }
 245
 246
 247     code = rx_GetServerDebug(s, host, port, &tstats, &supportedDebugValues);
 248     if (code < 0) {
 249         printf("getstats call failed with code %d\n", code);
 250         exit(1);
 251     }
 252
 253     withSecStats = (supportedDebugValues & RX_SERVER_DEBUG_SEC_STATS);
 254     withAllConn = (supportedDebugValues & RX_SERVER_DEBUG_ALL_CONN);
 255     withRxStats = (supportedDebugValues & RX_SERVER_DEBUG_RX_STATS);
 256     withWaiters = (supportedDebugValues & RX_SERVER_DEBUG_WAITER_CNT);
 257     withIdleThreads = (supportedDebugValues & RX_SERVER_DEBUG_IDLE_THREADS);
 258     withPeers = (supportedDebugValues & RX_SERVER_DEBUG_ALL_PEER);
 259
 260     printf("Free packets: %d, packet reclaims: %d, calls: %d, used FDs: %d\n",
 261            tstats.nFreePackets, tstats.packetReclaims, tstats.callsExecuted,
 262            tstats.usedFDs);
 263     if (!tstats.waitingForPackets)
 264         printf("not ");
 265     printf("waiting for packets.\n");
 266     if (withWaiters)
 267         printf("%d calls waiting for a thread\n", tstats.nWaiting);
 268     if (withIdleThreads)
 269         printf("%d threads are idle\n", tstats.idleThreads);
 270
 271     if (rxstats) {
 272         if (!withRxStats) {
 273           noRxStats:
 274             withRxStats = 0;
 275             fprintf(stderr,
 276                     "WARNING: Server doesn't support retrieval of Rx statistics\n");
 277         } else {
 278             struct rx_stats rxstats;
 279
 280             /* should gracefully handle the case where rx_stats grows */
 281             code =
 282                 rx_GetServerStats(s, host, port, &rxstats,
 283                                   &supportedStatValues);
 284             if (code < 0) {
 285                 printf("rxstats call failed with code %d\n", code);
 286                 exit(1);
 287             }
 288             if (code != sizeof(rxstats)) {
 289                 if ((((struct rx_debugIn *)(&rxstats))->type ==
 290                      RX_DEBUGI_BADTYPE))
 291                     goto noRxStats;
 292                 printf
 293                     ("WARNING: returned Rx statistics of unexpected size (got %d)\n",
 294                      code);
 295                 /* handle other versions?... */
 296             }
 297
 298             rx_PrintTheseStats(stdout, &rxstats, sizeof(rxstats),
 299                                tstats.nFreePackets, tstats.version);
 300         }
 301     }
 302
 303     if (!noConns) {
 304         if (allconns) {
 305             if (!withAllConn)
 306                 fprintf(stderr,
 307                         "WARNING: Server doesn't support retrieval of all connections,\n         getting only interesting instead.\n");
 308         }
 309
 310         if (onlyServer)
 311             printf("Showing only server connections\n");
 312         if (onlyClient)
 313             printf("Showing only client connections\n");
 314         if (onlyAuth != 999) {
 315             static char *name[] =
 316                 { "unauthenticated", "rxkad_clear", "rxkad_auth",
 317                 "rxkad_crypt"
 318             };
 319             printf("Showing only %s connections\n", name[onlyAuth + 1]);
 320         }
 321         if (onlyHost != -1) {
 322             hostAddr.s_addr = onlyHost;
 323             printf("Showing only connections from host %s\n",
 324                    inet_ntoa(hostAddr));
 325         }
 326         if (onlyPort != -1)
 327             printf("Showing only connections on port %u\n", ntohs(onlyPort));
 328
 329         for (i = 0;; i++) {
 330             code =
 331                 rx_GetServerConnections(s, host, port, &nextconn, allconns,
 332                                         supportedDebugValues, &tconn,
 333                                         &supportedConnValues);
 334             if (code < 0) {
 335                 printf("getconn call failed with code %d\n", code);
 336                 break;
 337             }
 338             if (tconn.cid == (afs_int32)0xffffffff) {
 339                 printf("Done.\n");
 340                 break;
 341             }
 342
 343             /* see if we're in nodally mode and all calls are dallying */
 344             if (nodally) {
 345                 flag = 0;
 346                 for (j = 0; j < RX_MAXCALLS; j++) {
 347                     if (tconn.callState[j] != RX_STATE_NOTINIT
 348                         && tconn.callState[j] != RX_STATE_DALLY) {
 349                         flag = 1;
 350                         break;
 351                     }
 352                 }
 353                 if (flag == 0) {
 354                     /* this call looks too ordinary, bump skipped count and go
 355                      * around again */
 356                     dallyCounter++;
 357                     continue;
 358                 }
 359             }
 360             if ((onlyHost != -1) && (onlyHost != tconn.host))
 361                 continue;
 362             if ((onlyPort != -1) && (onlyPort != tconn.port))
 363                 continue;
 364             if (onlyServer && (tconn.type != RX_SERVER_CONNECTION))
 365                 continue;
 366             if (onlyClient && (tconn.type != RX_CLIENT_CONNECTION))
 367                 continue;
 368             if (onlyAuth != 999) {
 369                 if (onlyAuth == -1) {
 370                     if (tconn.securityIndex != 0)
 371                         continue;
 372                 } else {
 373                     if (tconn.securityIndex != 2)
 374                         continue;
 375                     if (withSecStats && (tconn.secStats.type == 3)
 376                         && (tconn.secStats.level != onlyAuth))
 377                         continue;
 378                 }
 379             }
 380
 381             /* now display the connection */
 382             hostAddr.s_addr = tconn.host;
 383             printf("Connection from host %s, port %hu, ", inet_ntoa(hostAddr),
 384                    ntohs(tconn.port));
 385             if (tconn.epoch)
 386                 printf("Cuid %x/%x", tconn.epoch, tconn.cid);
 387             else
 388                 printf("cid %x", tconn.cid);
 389             if (tconn.error)
 390                 printf(", error %d", tconn.error);
 391             printf("\n  serial %d, ", tconn.serial);
 392             printf(" natMTU %d, ", tconn.natMTU);
 393
 394             if (tconn.flags) {
 395                 printf("flags");
 396                 if (tconn.flags & RX_CONN_MAKECALL_WAITING)
 397                     printf(" MAKECALL_WAITING");
 398                 if (tconn.flags & RX_CONN_DESTROY_ME)
 399                     printf(" DESTROYED");
 400                 if (tconn.flags & RX_CONN_USING_PACKET_CKSUM)
 401                     printf(" pktCksum");
 402                 printf(", ");
 403             }
 404             printf("security index %d, ", tconn.securityIndex);
 405             if (tconn.type == RX_CLIENT_CONNECTION)
 406                 printf("client conn\n");
 407             else
 408                 printf("server conn\n");
 409
 410             if (withSecStats) {
 411                 switch ((int)tconn.secStats.type) {
 412                 case 0:
 413                     if (tconn.securityIndex == 2)
 414                         printf
 415                             ("  no GetStats procedure for security object\n");
 416                     break;
 417                 case 1:
 418                     printf("  rxnull level=%d, flags=%d\n",
 419                            tconn.secStats.level, tconn.secStats.flags);
 420                     break;
 421                 case 2:
 422                     printf("  rxvab level=%d, flags=%d\n",
 423                            tconn.secStats.level, tconn.secStats.flags);
 424                     break;
 425                 case 3:{
 426                         char *level;
 427                         char flags = tconn.secStats.flags;
 428                         if (tconn.secStats.level == 0)
 429                             level = "clear";
 430                         else if (tconn.secStats.level == 1)
 431                             level = "auth";
 432                         else if (tconn.secStats.level == 2)
 433                             level = "crypt";
 434                         else
 435                             level = "unknown";
 436                         printf("  rxkad: level %s", level);
 437                         if (flags)
 438                             printf(", flags");
 439                         if (flags & 1)
 440                             printf(" unalloc");
 441                         if (flags & 2)
 442                             printf(" authenticated");
 443                         if (flags & 4)
 444                             printf(" expired");
 445                         if (flags & 8)
 446                             printf(" pktCksum");
 447                         if (tconn.secStats.expires)
 448                             /* Apparently due to a bug in the RT compiler that
 449                              * prevents (afs_uint32)0xffffffff => (double) from working,
 450                              * this code produces negative lifetimes when run on the
 451                              * RT. */
 452                             printf(", expires in %.1f hours",
 453                                    ((afs_uint32) tconn.secStats.expires -
 454                                     time(0)) / 3600.0);
 455                         if (!(flags & 1)) {
 456                             printf("\n  Received %d bytes in %d packets\n",
 457                                    tconn.secStats.bytesReceived,
 458                                    tconn.secStats.packetsReceived);
 459                             printf("  Sent %d bytes in %d packets\n",
 460                                    tconn.secStats.bytesSent,
 461                                    tconn.secStats.packetsSent);
 462                         } else
 463                             printf("\n");
 464                         break;
 465                     }
 466
 467                 default:
 468                     printf("  unknown\n");
 469                 }
 470             }
 471
 472             for (j = 0; j < RX_MAXCALLS; j++) {
 473                 printf("    call %d: # %d, state ", j, tconn.callNumber[j]);
 474                 if (tconn.callState[j] == RX_STATE_NOTINIT) {
 475                     printf("not initialized\n");
 476                     continue;
 477                 } else if (tconn.callState[j] == RX_STATE_PRECALL)
 478                     printf("precall, ");
 479                 else if (tconn.callState[j] == RX_STATE_ACTIVE)
 480                     printf("active, ");
 481                 else if (tconn.callState[j] == RX_STATE_DALLY)
 482                     printf("dally, ");
 483                 else if (tconn.callState[j] == RX_STATE_HOLD)
 484                     printf("hold, ");
 485                 printf("mode: ");
 486                 if (tconn.callMode[j] == RX_MODE_SENDING)
 487                     printf("sending");
 488                 else if (tconn.callMode[j] == RX_MODE_RECEIVING)
 489                     printf("receiving");
 490                 else if (tconn.callMode[j] == RX_MODE_ERROR)
 491                     printf("error");
 492                 else if (tconn.callMode[j] == RX_MODE_EOF)
 493                     printf("eof");
 494                 else
 495                     printf("unknown");
 496                 if (tconn.callFlags[j]) {
 497                     printf(", flags:");
 498                     if (tconn.callFlags[j] & RX_CALL_READER_WAIT)
 499                         printf(" reader_wait");
 500                     if (tconn.callFlags[j] & RX_CALL_WAIT_WINDOW_ALLOC)
 501                         printf(" window_alloc");
 502                     if (tconn.callFlags[j] & RX_CALL_WAIT_WINDOW_SEND)
 503                         printf(" window_send");
 504                     if (tconn.callFlags[j] & RX_CALL_WAIT_PACKETS)
 505                         printf(" wait_packets");
 506                     if (tconn.callFlags[j] & RX_CALL_WAIT_PROC)
 507                         printf(" waiting_for_process");
 508                     if (tconn.callFlags[j] & RX_CALL_RECEIVE_DONE)
 509                         printf(" receive_done");
 510                     if (tconn.callFlags[j] & RX_CALL_CLEARED)
 511                         printf(" call_cleared");
 512                 }
 513                 if (tconn.callOther[j] & RX_OTHER_IN)
 514                     printf(", has_input_packets");
 515                 if (tconn.callOther[j] & RX_OTHER_OUT)
 516                     printf(", has_output_packets");
 517                 printf("\n");
 518             }
 519         }
 520         if (nodally)
 521             printf("Skipped %d dallying connections.\n", dallyCounter);
 522     }
 523     if (showPeers && withPeers) {
 524         for (i = 0;; i++) {
 525             struct rx_debugPeer tpeer;
 526             code =
 527                 rx_GetServerPeers(s, host, port, &nextpeer, allconns, &tpeer,
 528                                   &supportedPeerValues);
 529             if (code < 0) {
 530                 printf("getpeer call failed with code %d\n", code);
 531                 break;
 532             }
 533             if (tpeer.host == 0xffffffff) {
 534                 printf("Done.\n");
 535                 break;
 536             }
 537
 538             if ((onlyHost != -1) && (onlyHost != tpeer.host))
 539                 continue;
 540             if ((onlyPort != -1) && (onlyPort != tpeer.port))
 541                 continue;
 542
 543             /* now display the peer */
 544             hostAddr.s_addr = tpeer.host;
 545             printf("Peer at host %s, port %hu\n", inet_ntoa(hostAddr),
 546                    ntohs(tpeer.port));
 547             printf("\tifMTU %hu\tnatMTU %hu\tmaxMTU %hu\n", tpeer.ifMTU,
 548                    tpeer.natMTU, tpeer.maxMTU);
 549             printf("\tpackets sent %d\tpacket resends %d\n", tpeer.nSent,
 550                    tpeer.reSends);
 551             printf("\tbytes sent high %d low %d\n", tpeer.bytesSent.high,
 552                    tpeer.bytesSent.low);
 553             printf("\tbytes received high %d low %d\n",
 554                    tpeer.bytesReceived.high, tpeer.bytesReceived.low);
 555             printf("\trtt %d msec, rtt_dev %d msec\n", tpeer.rtt >> 3,
 556                    tpeer.rtt_dev >> 2);
 557             printf("\ttimeout %d.%03d sec\n", tpeer.timeout.sec,
 558                    tpeer.timeout.usec / 1000);
 559         }
 560     }
 561     exit(0);
 562 }
 563
 564 /* simple main program */
 565 #ifndef AFS_NT40_ENV
 566 #include "AFS_component_version_number.c"
 567 #endif
 568 int
 569 main(argc, argv)
 570      int argc;
 571      char **argv;
 572 {
 573     struct cmd_syndesc *ts;
 574
 575 #ifdef AFS_NT40_ENV
 576     if (afs_winsockInit() < 0) {
 577         printf("%s: Couldn't initialize winsock. Exiting...\n", argv[0]);
 578         return 1;
 579     }
 580 #endif
 581
 582     ts = cmd_CreateSyntax(NULL, MainCommand, 0, "probe RX server");
 583     cmd_AddParm(ts, "-servers", CMD_SINGLE, CMD_REQUIRED, "server machine");
 584     cmd_AddParm(ts, "-port", CMD_SINGLE, CMD_OPTIONAL, "IP port");
 585     cmd_AddParm(ts, "-nodally", CMD_FLAG, CMD_OPTIONAL,
 586                 "don't show dallying conns");
 587     cmd_AddParm(ts, "-allconnections", CMD_FLAG, CMD_OPTIONAL,
 588                 "don't filter out uninteresting connections on server");
 589     cmd_AddParm(ts, "-rxstats", CMD_FLAG, CMD_OPTIONAL, "show Rx statistics");
 590     cmd_AddParm(ts, "-onlyserver", CMD_FLAG, CMD_OPTIONAL,
 591                 "only show server conns");
 592     cmd_AddParm(ts, "-onlyclient", CMD_FLAG, CMD_OPTIONAL,
 593                 "only show client conns");
 594     cmd_AddParm(ts, "-onlyport", CMD_SINGLE, CMD_OPTIONAL,
 595                 "show only <port>");
 596     cmd_AddParm(ts, "-onlyhost", CMD_SINGLE, CMD_OPTIONAL,
 597                 "show only <host>");
 598     cmd_AddParm(ts, "-onlyauth", CMD_SINGLE, CMD_OPTIONAL,
 599                 "show only <auth level>");
 600
 601     cmd_AddParm(ts, "-version", CMD_FLAG, CMD_OPTIONAL,
 602                 "show AFS version id");
 603     cmd_AddParm(ts, "-noconns", CMD_FLAG, CMD_OPTIONAL,
 604                 "show no connections");
 605     cmd_AddParm(ts, "-peers", CMD_FLAG, CMD_OPTIONAL, "show peers");
 606
 607     cmd_Dispatch(argc, argv);
 608     exit(0);
 609 }