v4l2-apps/util: Add parse-usbsnoop.php

From: Douglas Schilling Landgraf <dougsland@redhat.com>

Priority: normal

Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>

diff --git a/utils/parse-usbsnoop.php b/utils/parse-usbsnoop.php
new file mode 100644 (file)
index 0000000..de88f70
--- /dev/null
+++ b/utils/parse-usbsnoop.php
@@ -0,0 +1,221 @@
+<?
+
+/**********************************************************************
+ *  Copyright (C) 2010
+ *
+ *  Douglas Schilling Landgraf <dougsland@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  Version: 0.0.1
+ *
+ *  Description:
+ *     This is a quick hack to parse logs from the usbsnoop (usb sniffer)
+ *
+ *  Settings:
+ *     If needed to process a huge log maybe is needed to increase
+ *      the php settings.
+ *
+ *          $ vi /etc/php.ini
+ *            memory_limit = xxM
+ *
+ *  Usage:
+ *         $ php ./usb_snoop ./Usbsnoop > output.txt
+ *
+ *  Example:
+ *
+ *        009279: 002309 ms 126080 ms c0 0e a0 00 00 00 01 00 <<< 00
+ *         009280: 000007 ms 126087 ms c0 10 a0 00 00 00 01 00 <<< 00
+ *         009281: 000005 ms 126092 ms 40 0e a0 00 00 00 01 00 >>> 99
+ *         009282: 000107 ms 126199 ms c0 0e a0 00 01 00 01 00 <<< 99
+ *         009283: 000015 ms 126214 ms c0 0e a0 00 10 00 01 00 <<< 99
+ *         009284: 000004 ms 126218 ms 40 10 a0 00 00 00 01 00 >>> 00
+ *         009285: 000004 ms 126222 ms 40 0e a0 00 00 00 01 00 >>> 00
+ *
+ ***********************************************************************/
+
+function removeNL($var) {
+
+       $newstr = str_replace("\n", "", $var);
+       return $newstr;
+}
+
+function removeZeros($var) {
+
+       /* Removing 00000000 */
+       $remZeros   = strstr($var, ": ");
+
+       /* Removing : */
+       $remNewLine = str_replace(": ", "", $remZeros);
+
+       /* Removing \n */
+       $newstr = removeNL($remNewLine);
+
+       return $newstr;
+}
+
+/* Main */
+
+       $i = 0;
+       $j = 0;
+       $oldTime   = 0;
+       $direction = "";
+       $ctrlCmds  = "";
+
+
+       if ($argc < 2) {
+               printf("Usage: $argv[0] usbsnoop-log.txt\n");
+               exit;
+       }
+
+       $file = fopen($argv[1], "r") or exit("Unable to open file!\n");
+
+       /* Copying to a temp. buffer */
+       while(!feof($file))
+       {
+               $arrayFile[$i] = fgets($file);
+               $i++;
+       }
+
+       while($j < $i) {
+
+               /* Next position */
+               $j = $j + 1;
+
+               if(!isset($arrayFile[$j])) {
+                       break;
+               }
+
+               $str = removeNL($arrayFile[$j]);
+
+               $pieces = explode(" ", $str);
+               /* Defining URB */
+               if (((strstr($str, "<<<")) || (strstr($str, ">>>"))) ) {
+                       $URB = $pieces[6] . ":";
+
+               }
+
+               if( $pieces[0] != "--") {
+                       $t = $pieces[0];
+                       $timeTotalOp = str_replace("[", "", $t);
+                       $timeTotalOp = $timeTotalOp . " ms";
+               }
+
+               /* Updating current time*/
+               $currentTime =  $timeTotalOp;
+
+               $str = removeNL($arrayFile[$j]);
+
+               /* Searching for type to analyze*/
+
+               if (strstr($str, "-- URB_FUNCTION_CONTROL_TRANSFER:")) {
+
+                       while (1) {
+
+                               /* Next line */
+                               $j = $j + 1;
+
+                               if(!isset($arrayFile[$j])) {
+                                       break;
+                               }
+
+                               /* Setting Direction */
+                               if (strstr($arrayFile[$j], "TransferFlags")) {
+                                       if(strstr($arrayFile[$j], "USBD_TRANSFER_DIRECTION_OUT")) {
+                                               $direction = ">>>";
+                                       }
+                                       else {
+                                               $direction = "<<<";
+                                       }
+                               }
+
+                               if (strstr($arrayFile[$j], "TransferBufferMDL")) {
+                                       $getValues = 1;
+
+                                       while(1) {
+                                               /* Next line */
+                                               $j = $j + 1;
+                                               if (strstr($arrayFile[$j], "000000")) {
+                                                       $aa = "$arrayFile[$j]\n";
+                                                       if($getValues == 1) {
+                                                               $cmdV = removeZeros($aa);
+                                                       }
+                                                       else {
+                                                               $cmdV .= " " . removeZeros($aa);
+                                                       }
+                                               }
+                                               else {
+                                                       break;
+                                               }
+                                               $getValues++;
+                                       }
+                                       $j = $j - $getValues;
+                               }
+                               if (strstr($arrayFile[$j], "SetupPacket")) {
+
+                                       /* To catch the command we increase a line */
+                                       $j = $j + 1;
+
+                                       if ($oldTime == 0) {
+                                               $diff = 0 . " ms";
+                                       } else {
+                                               $diff = $timeTotalOp - $oldTime . " ms";
+                                       }
+
+                                       $ctrlCmds = removeZeros($arrayFile[$j]);
+
+                                       if (isset($cmdVD)) {
+                                               printf ("%06d: %06d ms %06d ms %s %s  %s%s\n",
+                                                      $URB + 0, $diff, $timeTotalOp, $ctrlCmds, $direction, $cmdVD, $cmdV);
+                                               $cmdVD = "";
+                                       }
+                                       else {
+                                               printf ("%06d: %06d ms %06d ms %s %s %s\n",
+                                                      $URB + 0, $diff, $timeTotalOp, $ctrlCmds, $direction, $cmdV);
+                                       }
+                                       $oldTime = $timeTotalOp;
+                                       break;
+                               }
+                               if (strstr($arrayFile[$j], "[")) {
+                                       break;
+                               }
+                       }
+
+               }
+
+               if (strstr($arrayFile[$j], "-- URB_FUNCTION_VENDOR_DEVICE:")) {
+
+                       while(1) {
+
+                               /* Next Line */
+                               $j = $j + 1;
+
+                               if (strstr($arrayFile[$j], "TransferBufferMDL")) {
+
+                                       /* Next Line */
+                                       $j = $j + 1;
+
+                                       if (strstr($arrayFile[$j], "UrbLink")) {
+                                               break;
+                                       }
+
+                                       $tmpCMD = "$arrayFile[$j]\n";
+                                       $cmdVD = removeZeros($tmpCMD);
+                               }
+
+                               if (strstr($arrayFile[$j], "[")) {
+                                       break;
+                               }
+                       }
+               }
+       }
+
+       fclose($file)
+?>