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 modem managers. |
| 8 | |
| 9 | |
| 10 | MM_LEVEL_LIST="err warn info debug" |
| 11 | |
| 12 | usage() { |
| 13 | echo " |
| 14 | Usage: mm_debug <level>|--reset|--help|--list_valid_levels |
| 15 | |
| 16 | mm_debug sets the log level of all running modem managers. |
| 17 | |
| 18 | <level> : The log level of modem managers to set to. Valid log levels |
| 19 | can be viewed by using the --list_valid_levels option. |
| 20 | |
| 21 | e.g. mm_debug err |
| 22 | Sets the log level of all running modem managers to 'err'. |
| 23 | |
| 24 | --reset : Resets the log level of all running modem managers to 'info'. |
| 25 | |
| 26 | --help : Displays this output. |
| 27 | |
| 28 | --list_valid_levels: Displays all valid log levels. |
| 29 | " |
| 30 | } |
| 31 | |
| 32 | dbus_call() { |
| 33 | local dest=$1 |
| 34 | local object_path=$2 |
| 35 | local method=$3 |
| 36 | shift 3 |
| 37 | dbus-send --print-reply --fixed --system --dest=$dest \ |
| 38 | "$object_path" "$method" "$@" |
| 39 | } |
| 40 | |
| 41 | # Lists all valid log levels. |
| 42 | list_valid_levels() { |
| 43 | echo "Valid levels are: ${MM_LEVEL_LIST// /, }" |
| 44 | } |
| 45 | |
| 46 | # Returns whether or not $2 exists in $1 where $1 is a space-separated |
| 47 | # list of log levels. |
| 48 | is_valid_level() { |
| 49 | expr match " $1 " ".* $2 .*"> /dev/null |
| 50 | } |
| 51 | |
| 52 | # Returns all modem managers that are currently running. |
| 53 | get_all_modem_managers() { |
| 54 | dbus_call org.freedesktop.DBus /org/freedesktop/DBus \ |
| 55 | org.freedesktop.DBus.ListNames | awk '/ModemManager/ { print $2 }' |
| 56 | } |
| 57 | |
| 58 | # Sets the log level of the specified modem manager. |
| 59 | set_modem_manager_logging() { |
| 60 | local manager=$1 |
| 61 | local level=$2 |
| 62 | local object_path= |
| 63 | local method= |
| 64 | |
| 65 | case "$manager" in |
| 66 | org.chromium.ModemManager) |
| 67 | object_path=/org/chromium/ModemManager |
| 68 | method=org.freedesktop.ModemManager.SetLogging |
| 69 | if [[ "$level" == "err" ]]; then |
| 70 | level=error |
| 71 | fi |
| 72 | ;; |
| 73 | org.freedesktop.ModemManager) |
| 74 | object_path=/org/freedesktop/ModemManager |
| 75 | method=org.freedesktop.ModemManager.SetLogging |
| 76 | ;; |
| 77 | org.freedesktop.ModemManager1) |
| 78 | object_path=/org/freedesktop/ModemManager1 |
| 79 | method=org.freedesktop.ModemManager1.SetLogging |
| 80 | ;; |
| 81 | *) |
| 82 | return 1 |
| 83 | ;; |
| 84 | esac |
| 85 | |
| 86 | dbus_call "$manager" "$object_path" "$method" "string:$level" |
| 87 | } |
| 88 | |
| 89 | # Sets the log level of all modem managers that are currently running. |
| 90 | set_all_modem_managers_logging() { |
| 91 | local level=$1 |
| 92 | |
| 93 | if ! is_valid_level "$MM_LEVEL_LIST" "$level"; then |
| 94 | echo "ERROR: '$level' is not a valid level." |
| 95 | list_valid_levels |
| 96 | return 1 |
| 97 | fi |
| 98 | |
| 99 | for manager in $(get_all_modem_managers); do |
| 100 | set_modem_manager_logging "$manager" "$level" |
| 101 | done |
| 102 | } |
| 103 | |
| 104 | |
| 105 | if [ $# -ne 1 ]; then |
| 106 | usage |
| 107 | exit 1 |
| 108 | fi |
| 109 | |
| 110 | case "$1" in |
| 111 | --reset) |
| 112 | set_all_modem_managers_logging "info" |
| 113 | ;; |
| 114 | --list_valid_levels) |
| 115 | list_valid_levels |
| 116 | ;; |
| 117 | --help|--*) |
| 118 | usage |
| 119 | ;; |
| 120 | *) |
| 121 | set_all_modem_managers_logging "$1" |
| 122 | ;; |
| 123 | esac |