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#!/bin/bash
# Script arguments in order:
#
# [-setcap] Optional 1st argument to use setcap, see below
# [-root] Optional 1st argument to use sudo, see below
# [-log <filename>] Optional argument to define logfile
# ... All subsequent arguments are passed to the Direct-BT example
#
# export direct_bt_debug=true
# export direct_bt_debug=adapter.event=false,gatt.data=false,hci.event=true,hci.scan_ad_eir=true,mgmt.event=false
# export direct_bt_debug=adapter.event,gatt.data,hci.event,hci.scan_ad_eir,mgmt.event
# export direct_bt_debug=adapter.event,gatt.data
# export direct_bt_debug=adapter.event,hci.event
# export direct_bt_debug=adapter.event
#
# Assuming executing dbt_scanner10:
#
# Default logfile in ~/run-dbt_scanner10.log
#
# Scan and read all devices (using default auto-sec w/ keyboard iocap)
# ../scripts/run-dbt_scanner10.sh
#
# Read device C0:26:DA:01:DA:B1 (using default auto-sec w/ keyboard iocap)
# ../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1
#
# Read device C0:26:DA:01:DA:B1 (enforcing no security)
# ../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -seclevel C0:26:DA:01:DA:B1 1
#
# Read any device containing C0:26:DA (enforcing no security)
# ../scripts/run-dbt_scanner10.sh -dev C0:26:DA -seclevel C0:26:DA 1
#
# Read any device containing name 'TAIDOC' (enforcing no security)
# ../scripts/run-dbt_scanner10.sh -dev 'TAIDOC' -seclevel 'TAIDOC' 1
#
# Read device C0:26:DA:01:DA:B1, basic debug flags enabled (using default auto-sec w/ keyboard iocap)
# ../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -dbt_debug true
#
# Read device C0:26:DA:01:DA:B1, all debug flags enabled (using default auto-sec w/ keyboard iocap)
# ../scripts/run-dbt_scanner10.sh -dev C0:26:DA:01:DA:B1 -dbt_debug adapter.event,gatt.data,hci.event,hci.scan_ad_eir,mgmt.event
#
# To do a BT adapter removal/add via software, assuming the device is '1-4' (Bus 1.Port 4):
# echo '1-4' > /sys/bus/usb/drivers/usb/unbind
# echo '1-4' > /sys/bus/usb/drivers/usb/bind
# To retrieve Bus and Port:
# lsusb -t
#
# Non root (we use the capsh solution per default):
# Debian 11: Package libcap2-bin, version 1:2.44-1, binaries: /sbin/setcap /sbin/getcap
# Depends: libc6 (>= 2.14), libcap2 (>= 1:2.33)
#
# Using setcap (pass '-setcap' as 1st script argument):
# sudo setcap 'cap_net_raw,cap_net_admin+eip' bin/dbt_scanner10
# sudo getcap bin/dbt_scanner10
#
# For debugging (must be explitly done):
# sudo setcap 'cap_net_raw,cap_net_admin+eip' /usr/bin/strace
# sudo setcap 'cap_sys_ptrace+eip' /usr/bin/gdb
#
# Using capsh (default):
# sudo /sbin/capsh --caps="cap_net_raw,cap_net_admin+eip cap_setpcap,cap_setuid,cap_setgid+ep" \
# --keep=1 --user=nobody --addamb=cap_net_raw,cap_net_admin+eip \
# -- -c "YOUR FANCY direct_bt STUFF"
#
# Root execution in case setcap/capsh fails (pass '-root' as 1st script argument):
# sudo YOUR FANCY direct_bt STUFF
#
# Only reliable way, but Linux specific
THIS_SHELL=`readlink /proc/$$/exe`
#THIS_SHELL=`ps -hp $$ | awk '{ print $5 }'`
if [ "$(basename ${THIS_SHELL})" != "bash" ]; then
echo "$0 must run in bash to preserve command-line quotes, not ${THIS_SHELL}"
exit 1
fi
script_args="$@"
username=${USER}
sdir=`dirname $(readlink -f $0)`
rootdir=`dirname $sdir`
bname=`basename $0 .sh`
exename=`echo $bname | sed 's/^run-//g'`
if [ ! -e bin/${exename} -o ! -e lib/libdirect_bt.so ] ; then
echo run from dist directory
exit 1
fi
run_setcap=0
run_root=0
if [ "$1" = "-setcap" ] ; then
run_setcap=1
shift 1
elif [ "$1" = "-root" ] ; then
run_root=1
shift 1
fi
if [ "$1" = "-log" ] ; then
logbasename=$2
shift 2
else
logbasename=~/$bname
fi
logfile=$logbasename.log
rm -f $logfile
valgrindlogfile=$logbasename-valgrind.log
rm -f $valgrindlogfile
callgrindoutfile=$logbasename-callgrind.out
rm -f $callgrindoutfile
echo 'core_%e.%p' | sudo tee /proc/sys/kernel/core_pattern
ulimit -c unlimited
# run as root 'dpkg-reconfigure locales' enable 'en_US.UTF-8'
# perhaps run as root 'update-locale LC_MEASUREMENT=en_US.UTF-8 LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8'
export LC_MEASUREMENT=en_US.UTF-8
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
# export EXE_WRAPPER="valgrind --tool=memcheck --leak-check=full --show-reachable=yes --track-origins=yes --malloc-fill=0xff --free-fill=0xfe --error-limit=no --default-suppressions=yes --suppressions=$sdir/valgrind.supp --gen-suppressions=all -s --log-file=$valgrindlogfile"
# export EXE_WRAPPER="valgrind --tool=memcheck --leak-check=full --show-leak-kinds=definite --track-origins=yes --malloc-fill=0xff --free-fill=0xfe --error-limit=no --default-suppressions=yes --suppressions=$sdir/valgrind.supp --gen-suppressions=all -s --log-file=$valgrindlogfile"
# export EXE_WRAPPER="valgrind --tool=helgrind --track-lockorders=yes --ignore-thread-creation=yes --default-suppressions=yes --suppressions=$sdir/valgrind.supp --gen-suppressions=all -s --log-file=$valgrindlogfile"
# export EXE_WRAPPER="valgrind --tool=drd --segment-merging=no --ignore-thread-creation=yes --trace-barrier=no --trace-cond=no --trace-fork-join=no --trace-mutex=no --trace-rwlock=no --trace-semaphore=no --default-suppressions=yes --suppressions=$sdir/valgrind.supp --gen-suppressions=all -s --log-file=$valgrindlogfile"
# export EXE_WRAPPER="valgrind --tool=callgrind --instr-atstart=yes --collect-atstart=yes --collect-systime=yes --combine-dumps=yes --separate-threads=no --callgrind-out-file=$callgrindoutfile --log-file=$valgrindlogfile"
runit_root() {
echo "sudo ... ${*@Q}"
sudo -- bash -c "ulimit -c unlimited; LD_LIBRARY_PATH=`pwd`/lib $EXE_WRAPPER bin/${exename} ${*@Q}"
exit $?
}
runit_setcap() {
echo "sudo setcap ... " "$@"
exe_file=$(readlink -f bin/${exename})
echo "sudo setcap 'cap_net_raw,cap_net_admin+eip' ${exe_file}"
trap 'sudo setcap -q -r '"${exe_file}"'' EXIT INT HUP QUIT TERM ALRM USR1
sudo setcap 'cap_net_raw,cap_net_admin+eip' ${exe_file}
sudo getcap ${exe_file}
ulimit -c unlimited
LD_LIBRARY_PATH=`pwd`/lib $EXE_WRAPPER ${exe_file} "$@"
exit $?
}
runit_capsh() {
echo "sudo capsh ... ${*@Q}"
sudo /sbin/capsh --caps="cap_net_raw,cap_net_admin+eip cap_setpcap,cap_setuid,cap_setgid+ep" \
--keep=1 --user=$username --addamb=cap_net_raw,cap_net_admin+eip \
-- -c "ulimit -c unlimited; LD_LIBRARY_PATH=`pwd`/lib "$EXE_WRAPPER" bin/${exename} ${*@Q}"
exit $?
}
runit() {
echo "script invocation: $0 ${script_args}"
echo exename $exename
echo username $username
echo run_setcap ${run_setcap}
echo run_root ${run_root}
echo ${exename} commandline "$@"
echo EXE_WRAPPER $EXE_WRAPPER
echo logbasename $logbasename
echo logfile $logfile
echo valgrindlogfile $valgrindlogfile
echo callgrindoutfile $callgrindoutfile
echo direct_bt_debug $direct_bt_debug
echo direct_bt_verbose $direct_bt_verbose
echo LD_LIBRARY_PATH=`pwd`/lib $EXE_WRAPPER bin/${exename} "$@"
mkdir -p client_keys
mkdir -p server_keys
if [ "${run_setcap}" -eq "1" ]; then
runit_setcap "$@"
elif [ "${run_root}" -eq "1" ]; then
runit_root "$@"
else
runit_capsh "$@"
fi
}
runit "$@" 2>&1 | tee $logfile
|
