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