src/cli_bpdu.c

   1 /*
   2  * Mausezahn - A fast versatile traffic generator
   3  * Copyright (C) 2008-2010 Herbert Haas
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
  12  * details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html
  16  *
  17 */
  18
  19
  20
  21 #include "mz.h"
  22 #include "cli.h"
  23 #include "mops.h"
  24
  25
  26
  27 int cmd_bpdu_id (struct cli_def *cli, char *command, char *argv[], int argc)
  28 {
  29    struct mops_ext_bpdu * pd = clipkt->p_desc;
  30    char str[256];
  31
  32    if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1) )
  33      {
  34         mz_def16("0x0000", pd->id, str);
  35         cli_print(cli, "Specify the BPDU identifier (0..65535)\r");
  36         cli_print(cli, "%s\n", str);
  37         cli_print(cli, "\n");
  38         return CLI_OK;
  39      }
  40
  41    if (mops_pdesc_2byte(&pd->id, argv[0], 0, 0, 65535))
  42      {
  43         cli_print(cli, "Specify a value between 0 and 65535\n");
  44      }
  45
  46    return CLI_OK;
  47 }
  48
  49
  50 int cmd_bpdu_version (struct cli_def *cli, char *command, char *argv[], int argc)
  51 {
  52    struct mops_ext_bpdu * pd = clipkt->p_desc;
  53
  54    if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1) )
  55      {
  56         cli_print(cli, "Specify the BPDU version (0..255)\r");
  57         cli_print(cli, "\n");
  58         return CLI_OK;
  59      }
  60
  61    if (mops_pdesc_1byte(&pd->version, argv[0], 0, 0, 255))
  62      {
  63         cli_print(cli, "Specify a value between 0 and 255\n");
  64      }
  65
  66
  67    return CLI_OK;
  68 }
  69
  70
  71
  72 int cmd_bpdu_type (struct cli_def *cli, char *command, char *argv[], int argc)
  73 {
  74         struct mops_ext_bpdu * pd = clipkt->p_desc;
  75
  76         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1) ) {
  77                 cli_print(cli, "Specify the BPDU type, either via keyword or number (0..255)\n");
  78                 cli_print(cli, "Keywords:\n");
  79                 cli_print(cli, "  conf .... Configuration BPDU\r");
  80                 cli_print(cli, "  tcn ..... Topology Change BPDU\r");
  81                 cli_print(cli, "\n");
  82                 return CLI_OK;
  83         }
  84
  85         if (mz_strcmp(argv[0], "configuration", 1)==0) {
  86                 pd->bpdu_type = 0x00;
  87         } else if (mz_strcmp(argv[0], "tcn", 1)==0) {
  88                 pd->bpdu_type = 0x80;
  89         } else if (mops_pdesc_1byte(&pd->bpdu_type, argv[0], 0, 0, 255)) {
  90                 cli_print(cli, "Specify a value between 0 and 255\n");
  91         }
  92
  93         return CLI_OK;
  94 }
  95
  96
  97 int cmd_bpdu_flags (struct cli_def *cli, char *command, char *argv[], int argc)
  98 {
  99    struct mops_ext_bpdu * pd = clipkt->p_desc;
 100    int i;
 101    char str[16];
 102
 103    if ( (strcmp(argv[argc-1],"?")==0) || (argc>8) )
 104      {
 105         cli_print(cli, "Specify the BPDU flags by keyword.\r");
 106         cli_print(cli, "Note that not-mentioned flags will be set to zero!\n");
 107         cli_print(cli, "General keywords:\n");
 108         cli_print(cli, "  ack     .... Topology Change Acknowledgement\r");
 109         cli_print(cli, "  tcn     .... Topology Change Notification\r");
 110         cli_print(cli, "\r");
 111         cli_print(cli, "RSTP-specific keywords:\n");
 112         cli_print(cli, "  agree   .... Agreement\r");
 113         cli_print(cli, "  prop    .... Proposal\r");
 114         cli_print(cli, "  fwd     .... Forward State\r");
 115         cli_print(cli, "  learn   .... Learn State\r");
 116         cli_print(cli, "\r");
 117         cli_print(cli, "  Port roles:\n");
 118         cli_print(cli, "  unknown .... Unknown\r");
 119         cli_print(cli, "  alt     .... Alternate or Backup\r");
 120         cli_print(cli, "  root    .... Root\r");
 121         cli_print(cli, "  desg    .... Designated\r");
 122         cli_print(cli, "\n");
 123         return CLI_OK;
 124      }
 125
 126    //    7     6    5   4        3   2     1      0
 127    // tcnack agree fwd learn     X   X  proposal TCN
 128    // where XX is 00 unknown
 129    //             01 alternate or backup
 130    //             10 root
 131    //             11 designated
 132
 133    if (argc)
 134      {
 135         pd->flags = 0x00; // always reset to zero (= normal Configuration BPDU)
 136
 137         for (i=0; i<argc; i++)
 138           {
 139              if (mz_strcmp(argv[i], "ack", 2)==0) pd->flags |= 0x80;
 140              else
 141                if (mz_strcmp(argv[i], "tcn", 2)==0) pd->flags |= 0x01;
 142              else
 143                if (mz_strcmp(argv[i], "agree", 2)==0) pd->flags |= 0x40;
 144              else
 145                if (mz_strcmp(argv[i], "fwd", 2)==0) pd->flags |= 0x20;
 146              else
 147                if (mz_strcmp(argv[i], "learn", 2)==0) pd->flags |= 0x10;
 148              else
 149                if (mz_strcmp(argv[i], "proposal", 2)==0) pd->flags |= 0x02;
 150              else
 151                if (mz_strcmp(argv[i], "unknown", 2)==0) pd->flags &= 0xf3;
 152              else
 153                if (mz_strcmp(argv[i], "alt", 2)==0) { pd->flags &= 0xf7; pd->flags |= 0x04; }
 154              else
 155                if (mz_strcmp(argv[i], "root", 2)==0) { pd->flags &= 0xfb; pd->flags |= 0x08; }
 156              else
 157                if (mz_strcmp(argv[i], "desg", 2)==0) pd->flags |= 0x0c;
 158           }
 159         // Feedback
 160         char2bits(pd->flags, str);
 161         cli_print(cli, "Flags: %s\n", str);
 162      }
 163    else
 164      {
 165         cli_print(cli, "No flags configured (use '?')\n");
 166      }
 167
 168    return CLI_OK;
 169 }
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179 int cmd_bpdu_rid (struct cli_def *cli, char *command, char *argv[], int argc)
 180 {
 181
 182         struct mops_ext_bpdu * pd = clipkt->p_desc;
 183         char p[64], e[64];
 184         int pri, esi, r;
 185
 186         if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 187         {
 188                 cli_print(cli, "Specify the BPDU root identifier, using the following format:\n");
 189                 cli_print(cli, " <priority>[:ext-sys-id] [interface | MAC-Address]\n");
 190                 cli_print(cli, "  <priority>          ....... priority (0-15)\r");
 191                 cli_print(cli, "  <ext-sys-id>        ....... extended system-id (0-4095)\n");
 192                 cli_print(cli, "Optionally the MAC address of the root bridge can be given, either directly as arbitrary\r");
 193                 cli_print(cli, "address (format: XX:XX:XX:XX:XX:XX) or by referring to an existing interface.\n");
 194                 cli_print(cli, "Per default the MAC address of the default interface is used and a priority of zero.\n");
 195                 cli_print(cli, "\n");
 196                 return CLI_OK;
 197         }
 198
 199         if (argc==0) {
 200                 cli_print(cli, "Please specify at least the priority (use ?)\n");
 201                 return CLI_OK;
 202         }
 203
 204         mz_tok(argv[0], ":", 2, p, e);
 205
 206         pri = (int) str2int(p);
 207         if (e!=NULL)
 208                 esi = (int) str2int(e);
 209         else
 210                 esi = 0;
 211
 212         if (argc==1) // no MAC given
 213         {
 214                 r = mops_create_bpdu_bid (clipkt, pri, esi, NULL, 1); // 1 means RID (0 means BID)
 215         }
 216         else
 217                 r = mops_create_bpdu_bid (clipkt, pri, esi, argv[1], 1); // 1 means RID (0 means BID)
 218
 219
 220         // Check return value
 221         switch (r)
 222         {
 223          case 1:
 224                 cli_print(cli, "Priority must be within 0..15\n");
 225                 return CLI_OK;
 226                 break;
 227          case 2:
 228                 cli_print(cli, "Extended System-ID must be within 0..4095\n");
 229                 return CLI_OK;
 230                 break;
 231          case 3:
 232                 cli_print(cli, "Invalid MAC address or interface\n");
 233                 return CLI_OK;
 234                 break;
 235          case 4:
 236                 cli_print(cli, "Invalid format - use ?\n");
 237                 return CLI_OK;
 238                 break;
 239         }
 240
 241
 242
 243         //---------
 244         // Verify:
 245         bs2str(pd->root_id, p, 8);
 246         cli_print(cli, "RID is now %s\n", p);
 247         // -------
 248         //
 249         return CLI_OK;
 250 }
 251
 252
 253
 254
 255
 256
 257 int cmd_bpdu_pc (struct cli_def *cli, char *command, char *argv[], int argc)
 258 {
 259    struct mops_ext_bpdu * pd = clipkt->p_desc;
 260    unsigned long long int i;
 261
 262    if ( (strcmp(argv[argc-1],"?")==0) || (argc>1) )
 263      {
 264         cli_print(cli, "Specify the BPDU root path cost (0..4294967295)\r");
 265         cli_print(cli, "\n");
 266         return CLI_OK;
 267      }
 268
 269    if (argc==0)
 270      {
 271         cli_print(cli, "Missing argument (use ?)\n");
 272         return CLI_OK;
 273      }
 274
 275    i = str2lint (argv[0]);
 276    if (i>0xffffffff)
 277      {
 278         cli_print(cli, "Range exceeded (0..4294967295)\n");
 279      }
 280    else
 281      pd->root_pc = (u_int32_t) i;
 282
 283    return CLI_OK;
 284 }
 285
 286
 287
 288
 289 int cmd_bpdu_bid (struct cli_def *cli, char *command, char *argv[], int argc)
 290 {
 291
 292    struct mops_ext_bpdu * pd = clipkt->p_desc;
 293    char p[64], e[64];
 294    int pri, esi, r;
 295
 296    if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 297      {
 298         cli_print(cli, "Specify the BPDU bridge identifier, using the following format:\n");
 299         cli_print(cli, " <priority>[:ext-sys-id] [interface | MAC-Address]\n");
 300         cli_print(cli, "  <priority>          ....... priority (0-15)\r");
 301         cli_print(cli, "  <ext-sys-id>        ....... extended system-id (0-4095)\n");
 302         cli_print(cli, "Optionally the MAC address of the root bridge can be given, either directly as arbitrary\r");
 303         cli_print(cli, "address (format: XX:XX:XX:XX:XX:XX) or by referring to an existing interface.\n");
 304         cli_print(cli, "Per default the MAC address of the default interface is used and a priority of zero.\n");
 305         cli_print(cli, "\n");
 306         return CLI_OK;
 307      }
 308
 309
 310    if (argc==0)
 311      {
 312         cli_print(cli, "Please specify at least the priority (use ?)\n");
 313         return CLI_OK;
 314      }
 315
 316    mz_tok(argv[0], ":", 2, p, e);
 317
 318    pri = (int) str2int(p);
 319    if (e!=NULL)
 320      esi = (int) str2int(e);
 321    else
 322      esi = 0;
 323
 324    if (argc==1) // no MAC given
 325      {
 326         r = mops_create_bpdu_bid (clipkt, pri, esi, NULL, 0); // 0 means BID (1 means RID)
 327      }
 328    else
 329      r = mops_create_bpdu_bid (clipkt, pri, esi, argv[1], 0); // 0 means BID (1 means RID)
 330
 331
 332    // Check return value
 333    switch (r)
 334      {
 335       case 1:
 336         cli_print(cli, "Priority must be within 0..15\n");
 337         return CLI_OK;
 338         break;
 339       case 2:
 340         cli_print(cli, "Extended System-ID must be within 0..4095\n");
 341         return CLI_OK;
 342         break;
 343       case 3:
 344         cli_print(cli, "Invalid MAC address or interface\n");
 345         return CLI_OK;
 346         break;
 347       case 4:
 348         cli_print(cli, "Invalid format - use ?\n");
 349         return CLI_OK;
 350         break;
 351      }
 352
 353
 354
 355    //---------
 356    // Verify:
 357    bs2str(pd->bridge_id, p, 8);
 358    cli_print(cli, "BID is now %s\n", p);
 359    // -------
 360    //
 361    return CLI_OK;
 362 }
 363
 364
 365
 366
 367
 368 int cmd_bpdu_pid (struct cli_def *cli, char *command, char *argv[], int argc)
 369 {
 370    struct mops_ext_bpdu * pd = clipkt->p_desc;
 371    u_int32_t i;
 372
 373    if ( (strcmp(argv[argc-1],"?")==0) || (argc>1) )
 374      {
 375         cli_print(cli, "Specify the BPDU port identifier (0..65535)\r");
 376         cli_print(cli, "\n");
 377         return CLI_OK;
 378      }
 379
 380    if (argc==0)
 381      {
 382         cli_print(cli, "Missing argument (use ?)\n");
 383         return CLI_OK;
 384      }
 385
 386    i = (u_int32_t) str2int (argv[0]);
 387
 388    if (i>0xffff)
 389      {
 390         cli_print(cli, "The port identifier must be within 0..65535\n");
 391         return CLI_OK;
 392      }
 393
 394    pd->port_id = (u_int16_t) i;
 395
 396    return CLI_OK;
 397 }
 398
 399 //
 400 //
 401 //  NOTE:
 402 //
 403 //    All timers are multiples of 1/256 sec. Thus times range from 0 to 255 seconds.
 404 //
 405 //
 406
 407 int cmd_bpdu_age (struct cli_def *cli, char *command, char *argv[], int argc)
 408 {
 409    struct mops_ext_bpdu * pd = clipkt->p_desc;
 410    u_int32_t i;
 411    char str[256];
 412
 413    if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 414      {
 415         mz_def16("0", pd->message_age, str);
 416
 417         cli_print(cli, "Specify the message age:\n");
 418         cli_print(cli, " - either in seconds (0..256) e. g. '14 sec'\r");
 419         cli_print(cli, " - or as multiples of 1/256 seconds (0..65535)\n");
 420         cli_print(cli, "%s\n", str);
 421         cli_print(cli, "\n");
 422         return CLI_OK;
 423      }
 424
 425    if (argc==0)
 426      {
 427         cli_print(cli, "Missing argument (use ?)\n");
 428         return CLI_OK;
 429      }
 430
 431    i = (u_int32_t) str2int (argv[0]);
 432
 433    if (argc==1) // absolute
 434      {
 435         if (i>0xffff)
 436           cli_print(cli, "The age must be within 0..65535\n");
 437         else
 438           pd->message_age = (u_int16_t) i;
 439      }
 440    else if (mz_strcmp(argv[1], "seconds", 1)==0) // in seconds
 441      {
 442         if (i>256)
 443           cli_print(cli, "The age must be within 0..256 seconds\n");
 444         else
 445           {
 446              if (i==256)
 447                i = 0xffff; // since 256*256=65536 which exceeds 0xffff but 65535/256 = 255.996
 448              else
 449                i = i * 256;
 450
 451              pd->message_age = (u_int16_t) i;
 452           }
 453
 454      }
 455    else
 456      cli_print(cli, "Invalid argument\n");
 457
 458    return CLI_OK;
 459
 460 }
 461
 462
 463
 464
 465
 466
 467
 468 int cmd_bpdu_maxage (struct cli_def *cli, char *command, char *argv[], int argc)
 469 {
 470    struct mops_ext_bpdu * pd = clipkt->p_desc;
 471    u_int32_t i;
 472    char str[256];
 473
 474    if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 475      {
 476         mz_def16("20 seconds", pd->max_age, str);
 477
 478         cli_print(cli, "Specify the maximum message age:\n");
 479         cli_print(cli, " - either in seconds (0..256) e. g. '20 sec'\r");
 480         cli_print(cli, " - or as multiples of 1/256 seconds (0..65535)\n");
 481         cli_print(cli, "%s\n", str);
 482         cli_print(cli, "\n");
 483         return CLI_OK;
 484      }
 485
 486    if (argc==0)
 487      {
 488         cli_print(cli, "Missing argument (use ?)\n");
 489         return CLI_OK;
 490      }
 491
 492    i = (u_int32_t) str2int (argv[0]);
 493
 494    if (argc==1) // absolute
 495      {
 496         if (i>0xffff)
 497           cli_print(cli, "The max age must be within 0..65535\n");
 498         else
 499           pd->max_age = (u_int16_t) i;
 500      }
 501    else if (mz_strcmp(argv[1], "seconds", 1)==0) // in seconds
 502      {
 503         if (i>256)
 504           cli_print(cli, "The max age must be within 0..256 seconds\n");
 505         else
 506           {
 507              if (i==256)
 508                i = 0xffff; // since 256*256=65536 which exceeds 0xffff but 65535/256 = 255.996
 509              else
 510                i = i * 256;
 511
 512              pd->max_age = (u_int16_t) i;
 513           }
 514
 515      }
 516    else
 517      cli_print(cli, "Invalid argument\n");
 518
 519    return CLI_OK;
 520
 521 }
 522
 523
 524
 525
 526
 527 int cmd_bpdu_hello (struct cli_def *cli, char *command, char *argv[], int argc)
 528 {
 529    struct mops_ext_bpdu * pd = clipkt->p_desc;
 530    u_int32_t i;
 531    char str[256];
 532
 533    if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 534      {
 535         mz_def16("2 seconds", pd->hello_time, str);
 536
 537         cli_print(cli, "Specify the hello interval:\n");
 538         cli_print(cli, " - either in seconds (0..256) e. g. '2 sec'\r");
 539         cli_print(cli, " - or as multiples of 1/256 seconds (0..65535)\n");
 540         cli_print(cli, "%s\n", str);    cli_print(cli, "\n");
 541         return CLI_OK;
 542      }
 543
 544    if (argc==0)
 545      {
 546         cli_print(cli, "Missing argument (use ?)\n");
 547         return CLI_OK;
 548      }
 549
 550
 551    i = (u_int32_t) str2int (argv[0]);
 552
 553    if (argc==1) // absolute
 554      {
 555         if (i>0xffff)
 556           cli_print(cli, "The hello interval must be within 0..65535\n");
 557         else
 558           pd->hello_time = (u_int16_t) i;
 559      }
 560    else if (mz_strcmp(argv[1], "seconds", 1)==0) // in seconds
 561      {
 562         if (i>256)
 563           cli_print(cli, "The hello interval must be within 0..256 seconds\n");
 564         else
 565           {
 566              if (i==256)
 567                i = 0xffff; // since 256*256=65536 which exceeds 0xffff but 65535/256 = 255.996
 568              else
 569                i = i * 256;
 570
 571              pd->hello_time = (u_int16_t) i;
 572           }
 573
 574      }
 575    else
 576      cli_print(cli, "Invalid argument\n");
 577
 578    return CLI_OK;
 579
 580 }
 581
 582 int cmd_bpdu_fwd (struct cli_def *cli, char *command, char *argv[], int argc)
 583 {
 584    struct mops_ext_bpdu * pd = clipkt->p_desc;
 585    u_int32_t i;
 586    char str[256];
 587
 588    if ( (strcmp(argv[argc-1],"?")==0) || (argc>2) )
 589      {
 590         mz_def16("15 seconds", pd->f_delay, str);
 591
 592         cli_print(cli, "Specify the forward delay:\n");
 593         cli_print(cli, " - either in seconds (0..256) e. g. '15 sec'\r");
 594         cli_print(cli, " - or as multiples of 1/256 seconds (0..65535)\n");
 595         cli_print(cli, "%s\n", str);
 596         cli_print(cli, "\n");
 597         return CLI_OK;
 598      }
 599
 600    if (argc==0)
 601      {
 602         cli_print(cli, "Missing argument (use ?)\n");
 603         return CLI_OK;
 604      }
 605
 606
 607    i = (u_int32_t) str2int (argv[0]);
 608
 609    if (argc==1) // absolute
 610      {
 611         if (i>0xffff)
 612           cli_print(cli, "The forward delay must be within 0..65535\n");
 613         else
 614           pd->f_delay = (u_int16_t) i;
 615      }
 616    else if (mz_strcmp(argv[1], "seconds", 1)==0) // in seconds
 617      {
 618         if (i>256)
 619           cli_print(cli, "The forward delay must be within 0..256 seconds\n");
 620         else
 621           {
 622              if (i==256)
 623                i = 0xffff; // since 256*256=65536 which exceeds 0xffff but 65535/256 = 255.996
 624              else
 625                i = i * 256;
 626
 627              pd->f_delay = (u_int16_t) i;
 628           }
 629
 630      }
 631    else
 632      cli_print(cli, "Invalid argument\n");
 633
 634    return CLI_OK;
 635
 636 }
 637
 638
 639
 640 int cmd_bpdu_mode (struct cli_def *cli, char *command, char *argv[], int argc)
 641 {
 642    struct mops_ext_bpdu * pd = clipkt->p_desc;
 643
 644    if ( (strcmp(argv[argc-1],"?")==0) || (argc>1) )
 645      {
 646         cli_print(cli, "Specify the BPDU mode using the keywords:\n");
 647         cli_print(cli, " stp    ...... IEEE 802.1d (traditional CST)\r");
 648         cli_print(cli, " rstp   ...... IEEE 802.1w (Rapid STP)\r");
 649         cli_print(cli, " mstp   ...... IEEE 802.1s (Multiple STP)\r");
 650         cli_print(cli, " pvst   ...... Cisco Per-VLAN STP\r");
 651         cli_print(cli, " rpvst  ...... Cisco Per-VLAN RSTP\r");
 652         cli_print(cli, "\n");
 653         return CLI_OK;
 654      }
 655
 656    if (argc==0)
 657      {
 658         cli_print(cli, "Missing argument (use ?)\n");
 659         return CLI_OK;
 660      }
 661
 662
 663    if (mz_strcmp(argv[0], "stp", 1)==0)
 664      {
 665         pd->version=0;
 666         pd->rstp=0;
 667         pd->pvst=0;
 668         pd->mstp=0;
 669      }
 670    else if (mz_strcmp(argv[0], "rstp", 2)==0)
 671      {
 672         pd->version=2;
 673         pd->rstp=1;
 674         pd->mstp=0;
 675      }
 676    else if (mz_strcmp(argv[0], "mstp", 1)==0)
 677      {
 678         pd->version=3;
 679         pd->mstp=1;
 680      }
 681    else if (mz_strcmp(argv[0], "pvst", 1)==0)
 682      {
 683         pd->version=0;
 684         pd->pvst=1;
 685         pd->rstp=0;
 686         pd->mstp=0;
 687      }
 688    else if (mz_strcmp(argv[0], "rpvst", 2)==0)
 689      {
 690         pd->version=2;
 691         pd->rstp=1;
 692         pd->pvst=1;
 693         pd->mstp=0;
 694      }
 695
 696
 697    // TODO: also change version to 2 if RSTP, 0 if legacy
 698
 699
 700    return CLI_OK;
 701 }
 702
 703
 704
 705
 706 int cmd_bpdu_vlan(struct cli_def *cli, char *command, char *argv[], int argc)
 707 {
 708    u_int32_t i;
 709
 710    if ( (strcmp(argv[argc-1],"?")==0) || (argc>1) )
 711      {
 712         cli_print(cli, "Specify the VLAN number for PVST+ messages (0..4095)\n");
 713         cli_print(cli, "\n");
 714         return CLI_OK;
 715      }
 716
 717    if (argc==0)
 718      {
 719         cli_print(cli, "Missing argument (use ?)\n");
 720         return CLI_OK;
 721      }
 722
 723    i = (u_int32_t) str2int(argv[0]);
 724
 725    if (i>65535)
 726      {
 727         cli_print(cli, "VLAN number is definitely too large! (0..65535 at maximum)\n");
 728         return CLI_OK;
 729      }
 730
 731    if (i>4095)
 732      {
 733         cli_print(cli, "Warning: Invalid VLAN number (0..4095) - but let's try it...\n");
 734      }
 735
 736    mops_create_bpdu_trailer(clipkt, (u_int16_t) i);
 737
 738    return CLI_OK;
 739 }
 740
 741
 742
 743 int cmd_bpdu_end(struct cli_def *cli, char *command, char *argv[], int argc)
 744 {
 745    char prompt[16];
 746    sprintf(prompt, "pkt-%i",clipkt->id);
 747    cli_set_configmode(cli, MZ_MODE_PACKET, prompt);
 748    return CLI_OK;
 749 }
 750