| # |
| # Copyright (C) 2016 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| on fs |
| setprop sys.wifitracing.started 0 |
| |
| on property:sys.boot_completed=1 && property:sys.wifitracing.started=0 |
| # Create trace buffer, and set basic configuration. |
| mkdir /sys/kernel/debug/tracing/instances/wifi 711 |
| restorecon_recursive /sys/kernel/debug/tracing/instances/wifi |
| write /sys/kernel/debug/tracing/instances/wifi/tracing_on 0 |
| write /sys/kernel/debug/tracing/instances/wifi/buffer_size_kb 1 |
| write /sys/kernel/debug/tracing/instances/wifi/trace_options disable_on_free |
| |
| # Enable cfg80211 events for connection and key management events. |
| # - Events are not actually logged until WifiService writes "1" to |
| # /sys/kernel/debug/tracing/instances/wifi/tracing_on. |
| # - WifiService is responsible for turning tracing off and on. |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/cfg80211_gtk_rekey_notify/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_add_key/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_assoc/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_auth/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_connect/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_set_default_key/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_set_default_mgmt_key/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/cfg80211/rdev_set_rekey_data/enable 1 |
| |
| # Enable datapath events for Wifi. |
| # - Events are not actually logged until WifiService writes "1" to |
| # /sys/kernel/debug/tracing/instances/wifi/tracing_on. |
| # - WifiService will ensure that tracing is turned back off, |
| # when a connection attempt ends (whether in success or failure) |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/filter name==${wifi.interface:-wlan0} |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/net_dev_queue/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/net_dev_xmit/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/netif_rx/enable 1 |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/netif_receive_skb/enable 1 |
| |
| # Set DAC to allow system_server to enable/disable, and read wifi trace |
| # events. |
| chown system /sys/kernel/debug/tracing/instances/wifi/tracing_on |
| chown system /sys/kernel/debug/tracing/instances/wifi/free_buffer |
| chown system /sys/kernel/debug/tracing/instances/wifi/trace |
| chmod 200 /sys/kernel/debug/tracing/instances/wifi/tracing_on |
| chmod 400 /sys/kernel/debug/tracing/instances/wifi/free_buffer |
| chmod 600 /sys/kernel/debug/tracing/instances/wifi/trace |
| setprop sys.wifitracing.started 1 |
| |
| on property:sys.boot_completed=1 && property:wifi.interface=* && sys.wifitracing.started=1 |
| # Override default value. |
| write /sys/kernel/debug/tracing/instances/wifi/events/net/filter name==${wifi.interface} |