Browse Source

send-at-retry: add script

master
Oliver Smith 2 months ago
parent
commit
f6aee41fb1
  1. 7
      src/send-at-retry/README.md
  2. 7
      src/send-at-retry/data/lxc_attach.sh
  3. 47
      src/send-at-retry/data/send_at_retry_android.sh
  4. 12
      src/send-at-retry/data/send_at_retry_ut.sh
  5. 18
      src/send-at-retry/send_at_retry.sh

7
src/send-at-retry/README.md

@ -0,0 +1,7 @@
Send AT commands multiple times until an expected string is in the reply.
This hack is a PoC for sending AT commands through the same pseudo TTY that
mtkfusionrild is using.
Preparation:
- Ubuntu touch with ssh enabled and writable rootfs

7
src/send-at-retry/data/lxc_attach.sh

@ -0,0 +1,7 @@
#!/bin/sh -ex
# SPDX-License-Identifier: GPL-2.0-or-later
# Author: Oliver Smith
# Copyright 2021 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
# Related: https://github.com/ubports/ubuntu-touch/issues/1836
LD_PRELOAD= LD_LIBRARY_PATH= lxc-attach -n android -e -- "$@"

47
src/send-at-retry/data/send_at_retry_android.sh

@ -0,0 +1,47 @@
#!/bin/sh -e
# SPDX-License-Identifier: GPL-2.0-or-later
# Author: Oliver Smith
# Copyright 2021 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
DEV="/dev/radio/ptty2cmd2"
RET="/data/local/tmp/ims_apn"
# $1: AT command to send
# $2: retry until finding this string in reply
send() {
echo "---"
echo "> $1"
rm -rf "$RET"
cat "$DEV" > "$RET" &
pid="$!"
for i in $(seq 1 5); do
printf .
echo "$1" > "$DEV"
sleep 0.1
if grep -q "$2" "$RET"; then
cat "$RET"
kill "$pid"
return
fi
done
kill "$pid"
echo
echo "ERROR: could not find '$2' in response:"
cat "$RET"
exit 1
}
# Query firmware information
send 'AT+CGMI' '+CGMI:'
send 'AT+CGMM' '+CGMM:'
send 'AT+CGMR' '+CGMR:'
# Add your at commands below
echo
echo "---"
echo "done"

12
src/send-at-retry/data/send_at_retry_ut.sh

@ -0,0 +1,12 @@
#!/bin/sh -ex
# SPDX-License-Identifier: GPL-2.0-or-later
# Author: Oliver Smith
# Copyright 2021 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
set -x
dump_name="$1"
chmod +x /mnt/tmp/android_run.sh
chmod +x /tmp/lxc_attach.sh
sudo /tmp/lxc_attach.sh /mnt/tmp/android_run.sh "$1" 2>&1 \
| tee /tmp/"$dump_name"

18
src/send-at-retry/send_at_retry.sh

@ -0,0 +1,18 @@
#!/bin/sh -ex
# SPDX-License-Identifier: GPL-2.0-or-later
# Author: Oliver Smith
# Copyright 2021 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
dump_name="$(date "+%Y-%m-%d_%H%M%S")"
adb push data/send_at_retry_ut.sh /tmp/run.sh
adb push data/lxc_attach.sh /tmp/lxc_attach.sh
adb push data/send_at_retry_android.sh /mnt/tmp/android_run.sh
adb forward tcp:8023 tcp:22
ssh -t -p 8023 phablet@localhost \
sh -e /tmp/run.sh "$dump_name"
mkdir -p dump/"${dump_name}_at"
adb pull /tmp/"$dump_name" "dump/${dump_name}_at/${dump_name}.txt"
ln -sf "$PWD/dump/${dump_name}_at/${dump_name}.txt" /tmp/latest.txt
Loading…
Cancel
Save