src/cli_rtp.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 int cmd_rtp_version (struct cli_def *cli, char *command, char *argv[], int argc)
  27 {
  28         struct mops_ext_rtp * pd = clipkt->p_desc;
  29         int v=2;
  30
  31         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
  32                 cli_print(cli, "Set the RTP version (0..3, default: v2).\n");
  33                 return CLI_OK;
  34         }
  35         if (mz_strisnum(argv[0])==0) {
  36                 cli_print(cli, "Invalid number.\n");
  37                 return CLI_OK;
  38         }
  39         v = (int) str2int(argv[0]);
  40         if (v>3) {
  41                 cli_print(cli, "Range exceeded (0..3).\n");
  42                 return CLI_OK;
  43         }
  44         pd->v = v;
  45         return CLI_OK;
  46 }
  47
  48 int cmd_rtp_padding (struct cli_def *cli, char *command, char *argv[], int argc)
  49 {
  50         struct mops_ext_rtp * pd = clipkt->p_desc;
  51         char state[8];
  52
  53         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
  54                 cli_print(cli, "Sets or unsets the RTP padding flag (default: disabled).\n");
  55                 cli_print(cli, "Use the keywords 'set' or 'unset'.\n");
  56                 sprintf(state, "%s", (pd->p) ? "SET" : "UNSET");
  57                 cli_print(cli, "Current state of the padding flag: %s\n",state);
  58                 return CLI_OK;
  59         }
  60
  61         if (mz_strcmp(argv[0], "set", 1)==0) {
  62                 pd->p = 1;
  63         } else  if (mz_strcmp(argv[0], "unset", 1)==0) {
  64                 pd->p = 0;
  65         }
  66         else {
  67                 cli_print(cli, "Invalid keyword. Use 'set' or 'unset'.\n");
  68         }
  69
  70         return CLI_OK;
  71 }
  72
  73 int cmd_rtp_xten (struct cli_def *cli, char *command, char *argv[], int argc)
  74 {
  75         struct mops_ext_rtp * pd = clipkt->p_desc;
  76         char state[8];
  77
  78         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
  79                 cli_print(cli, "Sets or unsets the RTP extension flag (default: disabled).\n");
  80                 cli_print(cli, "NOTE: This command only sets the extension flag in the RTP header.\r");
  81                 cli_print(cli, "If you really want an extension header use the 'extension' command.\n");
  82                 cli_print(cli, "Use the keywords 'set' or 'unset'.\n");
  83                 sprintf(state, "%s", (pd->x) ? "SET" : "UNSET");
  84                 cli_print(cli, "Current state of the extension flag: %s\n",state);
  85                 return CLI_OK;
  86         }
  87
  88         if (mz_strcmp(argv[0], "set", 1)==0) {
  89                 pd->x = 1;
  90         } else  if (mz_strcmp(argv[0], "unset", 1)==0) {
  91                 pd->x = 0;
  92         }
  93         else {
  94                 cli_print(cli, "Invalid keyword. Use 'set' or 'unset'.\n");
  95         }
  96
  97         return CLI_OK;
  98 }
  99
 100
 101 int cmd_rtp_marker (struct cli_def *cli, char *command, char *argv[], int argc)
 102 {
 103         struct mops_ext_rtp * pd = clipkt->p_desc;
 104         char state[8];
 105
 106         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 107                 cli_print(cli, "Sets or unsets the RTP marker flag (default: disabled).\n");
 108                 cli_print(cli, "Use the keywords 'set' or 'unset'.\n");
 109                 sprintf(state, "%s", (pd->m) ? "SET" : "UNSET");
 110                 cli_print(cli, "Current state of the marker flag: %s\n",state);
 111                 return CLI_OK;
 112         }
 113         if (mz_strcmp(argv[0], "set", 1)==0) {
 114                 pd->m = 1;
 115         } else  if (mz_strcmp(argv[0], "unset", 1)==0) {
 116                 pd->m = 0;
 117         }
 118         else {
 119                 cli_print(cli, "Invalid keyword. Use 'set' or 'unset'.\n");
 120         }
 121         return CLI_OK;
 122 }
 123
 124
 125 int cmd_rtp_cc (struct cli_def *cli, char *command, char *argv[], int argc)
 126 {
 127         struct mops_ext_rtp * pd = clipkt->p_desc;
 128         int cc=0;
 129
 130         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 131                 cli_print(cli, "Configure the RTP CSRC count (0..15, default: 0).\n");
 132                 cli_print(cli, "NOTE: This command only configures the CSRC value in the RTP header.\r");
 133                 cli_print(cli, "If you want to add a valid CSRC list use the 'csrc-list' command.\r");
 134                 cli_print(cli, "The main purpose of this command is to create an invalid RTP packet.\r");
 135                 return CLI_OK;
 136         }
 137         if (mz_strisnum(argv[0])==0) {
 138                 cli_print(cli, "Invalid number.\n");
 139                 return CLI_OK;
 140         }
 141         cc = (int) str2int(argv[0]);
 142         if (cc>15) {
 143                 cli_print(cli, "Range exceeded (0..15).\n");
 144                 return CLI_OK;
 145         }
 146         pd->cc = cc;
 147         return CLI_OK;
 148 }
 149
 150
 151 int cmd_rtp_pt (struct cli_def *cli, char *command, char *argv[], int argc)
 152 {
 153         struct mops_ext_rtp * pd = clipkt->p_desc;
 154         int pt=0;
 155
 156         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 157                 cli_print(cli, "Configure the RTP payload type (0..127, default: 8 (G.711, A-law)).\n");
 158                 // TODO: provide a list with well-known PT values
 159                 return CLI_OK;
 160         }
 161         if (mz_strisnum(argv[0])==0) {
 162                 cli_print(cli, "Invalid number.\n");
 163                 return CLI_OK;
 164         }
 165         pt = (int) str2int(argv[0]);
 166         if (pt>127) {
 167                 cli_print(cli, "Range exceeded (0..127).\n");
 168                 return CLI_OK;
 169         }
 170         pd->pt = pt;
 171         return CLI_OK;
 172 }
 173
 174 int cmd_rtp_ssrc (struct cli_def *cli, char *command, char *argv[], int argc)
 175 {
 176         struct mops_ext_rtp * pd = clipkt->p_desc;
 177         unsigned long long int ssrc = 0xcafefeed;
 178
 179         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 180                 cli_print(cli, "Configure the RTP SSRC (source identifier) (0..ffffffff, default: random!).\n");
 181                 cli_print(cli, "NOTE: The SSRC value is used by another Mausezahn receiver to identify a original\r");
 182                 cli_print(cli, "Mausezahn RTP stream. By default, Mausezahn receivers check for the magic number\r");
 183                 cli_print(cli, "'cafebabe' (hex). Use another number for another RTP stream (e. g. bidirectional\r");
 184                 cli_print(cli, "measurements).\n");
 185                 return CLI_OK;
 186         }
 187
 188         if (mz_strishex(argv[0])==0) {
 189                 cli_print(cli, "Invalid number.\n");
 190                 return CLI_OK;
 191         }
 192
 193         ssrc =  xstr2lint(argv[0]);
 194         if (ssrc>0xffffffff) {
 195                 cli_print(cli, "Range exceeded (0..ffffffff).\n");
 196                 return CLI_OK;
 197         }
 198         pd->ssrc = (u_int32_t) ssrc;
 199         return CLI_OK;
 200 }
 201
 202
 203 int cmd_rtp_sqnr (struct cli_def *cli, char *command, char *argv[], int argc)
 204 {
 205         struct mops_ext_rtp * pd = clipkt->p_desc;
 206         unsigned long long int sqnr = 0;
 207
 208         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 209                 cli_print(cli, "Configure the RTP initial sequence number (0..ffffffff, default: 0).\n");
 210                 return CLI_OK;
 211         }
 212
 213         if (mz_strishex(argv[0])==0) {
 214                 cli_print(cli, "Invalid number.\n");
 215                 return CLI_OK;
 216         }
 217         sqnr =  xstr2lint(argv[0]);
 218         if (sqnr>0xffffffff) {
 219                 cli_print(cli, "Range exceeded (0..ffffffff).\n");
 220                 return CLI_OK;
 221         }
 222         pd->sqnr = (u_int32_t) sqnr;
 223         return CLI_OK;
 224 }
 225
 226
 227 int cmd_rtp_time (struct cli_def *cli, char *command, char *argv[], int argc)
 228 {
 229         struct mops_ext_rtp * pd = clipkt->p_desc;
 230         unsigned long long int t = 0;
 231
 232         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 233                 cli_print(cli, "Configure the RTP initial timestamp (0..ffffffff, default: 0).\n");
 234                 return CLI_OK;
 235         }
 236
 237         if (mz_strishex(argv[0])==0) {
 238                 cli_print(cli, "Invalid number.\n");
 239                 return CLI_OK;
 240         }
 241         t =  xstr2lint(argv[0]);
 242         if (t>0xffffffff) {
 243                 cli_print(cli, "Range exceeded (0..ffffffff).\n");
 244                 return CLI_OK;
 245         }
 246         pd->tst = (u_int32_t) t;
 247         return CLI_OK;
 248 }
 249
 250
 251 int cmd_rtp_extension (struct cli_def *cli, char *command, char *argv[], int argc)
 252 {
 253         struct mops_ext_rtp * pd = clipkt->p_desc;
 254
 255         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 256                 cli_print(cli, "Configure an RTP extension header (default: none).\n");
 257                 cli_print(cli, "Currently supported RTP extension headers:\n");
 258                 cli_print(cli, "none          Don't use any extension.\r");
 259                 cli_print(cli, "mausezahn     Use the new Mausezahn jitter/RTT measurement extension.\r");
 260                 cli_print(cli, "              (Note that this is incompatible with Mausezahn's direct\r");
 261                 cli_print(cli, "              mode jitter measurement.)\r");
 262                 cli_print(cli, "\n");
 263                 return CLI_OK;
 264         }
 265
 266         if (mz_strcmp(argv[0], "none", 1)==0) {
 267                 pd->x_type = 0;
 268                 pd->x = 0; // X bit in header
 269         } else  if (mz_strcmp(argv[0], "mausezahn", 1)==0) {
 270                 pd->x_type = 42;
 271                 pd->x = 1; // X bit in header
 272                 pd->ssrc = 0xcafefeed;
 273         } else {
 274                 cli_print(cli, "Unknown keyword.\n");
 275                 return CLI_OK;
 276
 277         }
 278
 279         mops_update_rtp (clipkt); // re-build RTP packet (for proper show commands)
 280         return CLI_OK;
 281 }
 282
 283
 284
 285 int cmd_rtp_source (struct cli_def *cli, char *command, char *argv[], int argc)
 286 {
 287 //      struct mops_ext_rtp * pd = clipkt->p_desc;
 288
 289         if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1)) {
 290                 cli_print(cli, "Specify a RTP media source.\n");
 291                 return CLI_OK;
 292         }
 293
 294         // [TODO] -- Allow to use /dev/dsp or a mixer source ...
 295         //
 296         cli_print(cli, "Currently not supported.\n");
 297
 298         return CLI_OK;
 299 }
 300
 301
 302 int cmd_rtp_cclist (struct cli_def *cli, char *command, char *argv[], int argc)
 303 {
 304         struct mops_ext_rtp * pd = clipkt->p_desc;
 305         unsigned long long int csrc=0;
 306         char str[80];
 307         int i=0, n=0;
 308
 309
 310         if ((strcmp(argv[argc-1],"?")==0) || (argc==0)) {
 311                 cli_print(cli, "Specify a CSRC list consisting of 1-15 CSRC values.\r");
 312                 cli_print(cli, "Each CSRC is a 4-byte value and must be specified in hexadecimal notation,\r");
 313                 cli_print(cli, "hence each value must be within 0..ffffffff.\n");
 314                 return CLI_OK;
 315         }
 316
 317         if ((n=argc)>15) {
 318                 cli_print(cli, "The CSRC list must not exceed 15 items!\n");
 319                 return CLI_OK;
 320         }
 321
 322         for (i=0; i<n; i++) {
 323                 if (mz_strishex(argv[i])==0) {
 324                         sprintf(str, "Parameter %i: Invalid number!", i);
 325                         cli_print(cli, "%s\n", str);
 326                         return CLI_OK;
 327                 }
 328                 csrc =  xstr2lint(argv[i]);
 329                 if (csrc>0xffffffff) {
 330                         sprintf(str, "Parameter %i: Range exceeded (0..ffffffff)", i);
 331                         cli_print(cli, "%s\n", str);
 332                         return CLI_OK;
 333                 }
 334                 pd->csrc[i] = (u_int32_t) csrc;
 335         }
 336         pd->cc = n; // this one can be accessed and modified to "wrong" values by the user
 337         pd->cc_real = n;
 338
 339         return CLI_OK;
 340 }
 341
 342
 343