Added scripts for disabling and enabling the modem on devices that use Samsung-RIL.

Reviewed-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>

1 files changed, 43 insertions, 0 deletions

diff --git a/networking/modem/device-files/disable_modem.sh b/networking/modem/device-files/disable_modem.sh
new file mode 100644
index 0000000..eed2664
--- /dev/null
+++ b/networking/modem/device-files/disable_modem.sh
@@ -0,0 +1,43 @@
+#!/system/bin/bash
+#
+# Copyright (C) 2017 Jeremy Rand <jeremy@veclabs.net>
+# Partially based on code by Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> and Filippo Fil Bergamo
+#
+# This file is part of "SlightlyBetterAirplaneMode", a set of shell scripts to shut off
+# the Samsung phone modem without trusting the non-free modem firmware.
+#
+# SlightlyBetterAirplaneMode 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, either version 3 of the License, or
+# (at your option) any later version.
+#
+# SlightlyBetterAirplaneMode 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+set -euf -o pipefail
+
+echo "Remounting system partition as writable..."
+mount -o rw,remount /system
+
+echo "Disabling RIL..."
+mv /system/lib/libsamsung-ril.so /system/lib/libsamsung-ril.so.disabled || echo 'RIL was already disabled.'
+
+echo "Syncing filesystem..."
+sync
+sync
+
+echo "Remounting system partition as read-only..."
+mount -o ro,remount /system
+
+echo "Syncing filesystem..."
+sync
+sync
+
+# https://android.stackexchange.com/a/139139
+echo "Modem will be disabled after we reboot now..."
+am start -a android.intent.action.REBOOT