Darin Petkov | 2a0614e | 2012-10-22 15:28:41 +0200 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| 4 | # Use of this source code is governed by a BSD-style license that can be |
| 5 | # found in the LICENSE file. |
| 6 | # |
| 7 | # Script that turns on useful logging for wpa_supplicant |
| 8 | |
| 9 | |
| 10 | WPA_LEVEL_LIST="excessive msgdump debug info warning error" |
| 11 | |
| 12 | usage(){ |
| 13 | echo " |
| 14 | Usage: wpa_debug [level]|[--reset]|[--help][--list_valid_levels] |
| 15 | |
| 16 | wpa_debug sets the debug level of wpa_supplicant. |
| 17 | Current debug level is displayed if no parameters are provided |
| 18 | |
| 19 | level: The level is the level we want to set the debugging level to. The valid |
| 20 | levels can be viewed by using the --list_valid_levels flag |
| 21 | |
| 22 | eg: wpa_debug msgdump |
| 23 | Sets the wpa_supplicant logging level to msgdump |
| 24 | |
| 25 | --reset : Resets the level to 'info' |
| 26 | |
| 27 | --help : Displays this output |
| 28 | |
| 29 | --list_valid_levels: Displays the valid levels wpa_supplicant can be set to |
| 30 | " |
| 31 | } |
| 32 | |
| 33 | CMD_FLAG="<<cmd>>" |
| 34 | |
| 35 | WPA_CMD="dbus-send --system --dest=fi.w1.wpa_supplicant1 --print-reply /fi/w1/wpa_supplicant1 org.freedesktop.DBus.Properties.$CMD_FLAG string:fi.w1.wpa_supplicant1 string:DebugLevel" |
| 36 | |
| 37 | # Returns whether ot not $2 exists in $1 where $1 is a space |
| 38 | # separated list of tags |
| 39 | is_valid_tag(){ |
| 40 | expr match " $1 " ".* $2 .*"> /dev/null |
| 41 | } |
| 42 | |
| 43 | get_wpa_logging(){ |
| 44 | set_cmd="`echo $WPA_CMD | sed "s/$CMD_FLAG/Get/"`" |
| 45 | $set_cmd | awk '/string/ { print substr($3, 2, length($3)-2); }' |
| 46 | } |
| 47 | |
| 48 | set_wpa_logging(){ |
| 49 | if ! is_valid_tag "$WPA_LEVEL_LIST" "$1"; then |
| 50 | return 1 |
| 51 | fi |
| 52 | |
| 53 | if [ $1 == `get_wpa_logging` ]; then |
| 54 | return 1 |
| 55 | fi |
| 56 | |
| 57 | set_cmd="`echo $WPA_CMD | sed "s/$CMD_FLAG/Set/"` variant:string:$1" |
| 58 | $set_cmd |
| 59 | } |
| 60 | |
| 61 | |
| 62 | if [ $# -gt 0 ]; then |
| 63 | for param in $@; do |
| 64 | case $param in |
| 65 | --reset) |
| 66 | set_wpa_logging "info" |
| 67 | ;; |
| 68 | --list*) |
| 69 | echo "Valid levels are: `echo $WPA_LEVEL_LIST| sed 's/ /, /g'`" |
| 70 | exit 0 |
| 71 | ;; |
| 72 | --help|--*) |
| 73 | usage |
| 74 | exit 0 |
| 75 | ;; |
| 76 | *) |
| 77 | old_level="`get_wpa_logging`" |
| 78 | set_wpa_logging "$param" |
| 79 | echo "Old wpa level: $old_level" |
| 80 | ;; |
| 81 | esac |
| 82 | done |
| 83 | fi |
| 84 | |
| 85 | echo "Current wpa level: `get_wpa_logging`" |
| 86 | |