mirror of
https://github.com/freebsd/freebsd-src
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311 lines
9.7 KiB
Bash
Executable file
311 lines
9.7 KiB
Bash
Executable file
#!/bin/sh
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#-
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# ----------------------------------------------------------------------------
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# "THE BEER-WARE LICENSE" (Revision 42):
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# <erdgeist@erdgeist.org> wrote this file. As long as you retain this notice you
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# can do whatever you want with this stuff. If we meet some day, and you think
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# this stuff is worth it, you can buy me a beer in return Poul-Henning Kamp
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# ----------------------------------------------------------------------------
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#
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#
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# define our bail out shortcut
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exerr () { echo -e "Error: $*" >&2 ; exit 1; }
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print_syntax () { echo -e "Syntax: $0 scan [-d device] [-n node]"; exit 1; }
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main() {
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unset node device started bdaddresses retry
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# Only one command at the moment is scan (+ add)
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[ "$#" -eq 1 -a "$1" = "scan" ] || print_syntax
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shift
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# Get command line options
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while getopts :d:n: arg; do
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case ${arg} in
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d) device="$OPTARG";;
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n) node="$OPTARG";;
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?) print_syntax;;
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esac
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done
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# No use running without super user rights
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if [ $( id -u ) -ne 0 ]; then
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exerr "$0 must modify files that belong to root. Re-run as root."
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fi
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known_nodes=$( /usr/sbin/hccontrol read_node_list 2>/dev/null |\
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/usr/bin/tail -n +2 | /usr/bin/cut -d ' ' -f 1 )
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# Check if netgraph knows about any HCI nodes
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if ! [ "${known_nodes}" ]; then
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ng_nodes=$( /usr/sbin/ngctl list 2>/dev/null | \
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/usr/bin/grep -o "Name: .* Type: ubt" |/usr/bin/cut -d' ' -f2 )
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[ "${ng_nodes}" ] || exerr "No Bluetooth host controllers found."
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unset found
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for n in ${ng_nodes}; do
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if [ "${n}" = "${node%hci}" ]; then
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# Found the node but its stack is not set up? Do it now.
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/usr/sbin/service bluetooth start ${node%hci} || exit 1
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found="YES"
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fi
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done
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# If we have Bluetooth controller nodes without a set up stack,
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# ask the user if we shall start it up
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if ! [ "${found}" ]; then
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printf "No usable Bluetooth host controllers were found.\n"
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printf "These host controllers exist in the system:\n"
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printf " %s\n" "${ng_nodes}"
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prompt="Choose a host controller to set up: [${ng_nodes%% *}]"
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read -p "${prompt}" node
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: ${node:="${ng_nodes%% *}"}
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/usr/sbin/service bluetooth start ${node} || exit 1
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fi
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# Re-read known nodes
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known_nodes=$(/usr/sbin/hccontrol read_node_list 2>/dev/null |
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/usr/bin/tail -n +2 | /usr/bin/cut -d ' ' -f 1 )
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# check if we succeeded in bringing it up
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[ "${known_nodes}" ] || exerr "Failed to set up Bluetooth stack"
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fi
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# if a node was requested on command line, check if it is there
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if [ "${node}" ]; then
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unset found
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for n in ${known_nodes}; do
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[ "${n}" = "${node}" ] && found="YES"
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[ "${n}" = "${node}hci" ] && node="${node}hci" && found="YES"
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done
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[ "${found}" ] || exerr "Node ${node} not found"
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fi
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[ "${node}" ] && node="-n ${node}"
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while ! [ "${bdaddresses}" ]; do
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retry=X${retry}
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printf "Scanning for new Bluetooth devices (Attempt %d of 5) ... " \
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${#retry}
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bdaddresses=$( /usr/sbin/hccontrol -N ${node} inquiry 2>/dev/null |
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/usr/bin/grep -o "BD_ADDR: .*" | /usr/bin/cut -d ' ' -f 2 )
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# Count entries and, if a device was requested on command line,
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# try to find it
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unset found count
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for bdaddress in ${bdaddresses}; do
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count=X${count}
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if [ "${bdaddress}" = "${device}" ]; then
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found=YES
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bdaddresses="${device}"
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count=X
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break
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fi
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done
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# If device was requested on command line but is not found,
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# or no devices found at all, rescan until retry is exhausted
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if ! [ "${found}" -o "${count}" -a -z "${device}" ]; then
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printf "failed.\n"
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if [ "${#retry}" -eq 5 ]; then
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[ "${device}" ] && exerr "Device ${device} not found"
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exerr "No new Bluetooth devices found"
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fi
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unset bdaddresses
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sleep 2
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continue
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fi
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[ ${#count} -gt 1 ] && plural=s || plural=''
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printf "done.\nFound %d new bluetooth device%s " ${#count} ${plural}
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printf "(now scanning for names):\n"
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# Looping again for the faster feedback
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unset count
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for bdaddress in ${bdaddresses}; do
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count=X${count}
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bdname=$( /usr/bin/bthost -b "${bdaddress}" 2>/dev/null )
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friendlyname=$( /usr/sbin/hccontrol Remote_Name_Request \
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${bdaddress} 2> /dev/null |
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/usr/bin/grep -o "Name: .*" |/usr/bin/cut -d ' ' -f 2- )
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# sdpcontrol should be able to pull vendor + product id via sdp
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printf "[%2d] %s\t\"%s\" (%s)\n" ${#count} "${bdaddress}" \
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"${friendlyname}" "${bdname}"
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eval bdaddress_${#count}=\${bdaddress}
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eval bdname_${#count}=\${bdname}
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eval friendlyname_${#count}=\${friendlyname}
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done
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# If a device was pre-selected, do not query the user
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[ "${device}" ] && topair=1 || unset topair
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# Even if only one device was found, user may chose 0 to rescan
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while ! [ "${topair}" ]; do
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prompt="Select device to pair with [1"
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[ ${#count} -gt 1 ] && prompt="${prompt}-${#count}"
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read -p "${prompt}, or 0 to rescan]: " topair
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if ! [ "${topair}" -ge 0 -a "${topair}" -le "${#count}" ] \
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2>/dev/null ; then
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printf "Value out of range: %s.\n" {topair}
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unset topair
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fi
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done
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[ "${topair}" -eq "0" ] && unset bdaddresses retry
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done
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eval bdaddress=\${bdaddress_${topair}}
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eval bdname=\${bdname_${topair}}
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eval friendlyname=\${friendlyname_${topair}}
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# Do we need to add an entry to /etc/bluetooth/hosts?
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if ! [ "${bdname}" ]; then
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printf "\nAdding device ${bdaddress} to /etc/bluetooth/hosts.\n"
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while ! [ "${bdname}" ]; do
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read -p "Enter friendly name. [${friendlyname}]: " _r
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: ${_r:="${friendlyname}"}
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if [ "${_r}" ]; then
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# Remove white space and non-friendly characters
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bdname=$( printf "%s" "${_r}" | tr -c '[:alnum:]-,.' _ )
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if [ "${_r}" != "${bdname}" ]; then
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printf "Notice: Using sanitized name"
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printf "\"%s\" in /etc/bluetooth/hosts.\n" \
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"${bdname}"
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fi
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fi
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done
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printf "%s\t%s\n" "${bdaddress}" "${bdname}" >> /etc/bluetooth/hosts
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fi
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# If scanning for the name did not succeed, resort to bdname
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: ${friendlyname:="${bdname}"}
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# now over to hcsecd
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# Since hcsecd does not allow querying for known devices, we need to
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# check for bdaddr entries manually.
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#
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# Also we cannot really modify the PIN in an existing entry. So we
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# need to prompt the user to manually do it and restart this script
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if ! /usr/sbin/service hcsecd enabled; then
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printf "\nWarning: hcsecd is not enabled.\n"
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printf "This daemon manages pairing requests.\n"
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read -p "Enable hcsecd? [yes]: " _r
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case "${_r}" in
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no|n|NO|N|No|nO) ;;
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*) /usr/sbin/service hcsecd enable;;
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esac
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fi
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secd_config=$( /usr/sbin/sysrc -n hcsecd_config )
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secd_entries=$( /usr/bin/grep -Eo "bdaddr[[:space:]]+(${bdaddress}|${bdname})" \
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${secd_config} | awk '{ print $2; }' )
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if [ "${secd_entries}" ]; then
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printf "\nWarning: An entry for device %s is already present in %s.\n" \
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${secd_entries} ${secd_config}
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printf "To modify pairing information, edit this file and run\n"
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printf " service hcsecd restart\n"
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read -p "Continue? [yes]: " _r
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case "${_r}" in no|n|NO|N|No|nO) exit;; esac
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else
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printf "\nWriting pairing information description block to %s.\n" \
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${secd_config}
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printf "(To get PIN, put device in pairing mode first.)\n"
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read -p "Enter PIN [nopin]: " pin
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[ "${pin}" ] && pin=\""${pin}"\" || pin="nopin"
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# Write out new hcsecd config block
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printf "\ndevice {\n\tbdaddr\t%s;\n\tname\t\"%s\";\n\tkey\tnokey\;\n\tpin\t%s\;\n}\n" \
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"${bdaddress}" "${friendlyname}" "${pin}" >> ${secd_config}
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# ... and make daemon reload config
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# TODO: hcsecd should provide a reload hook
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/usr/sbin/service hcsecd onerestart
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# TODO: we should check if hcsecd succeeded pairing and revert to an
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# old version of hcsecd.conf so we can undo adding the block above and
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# retry with a new PIN
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# also, if there's a way to force devices to re-pair, try this
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fi
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# now check for specific services to be provided by the device
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# first up: HID
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/usr/sbin/sdpcontrol -a "${bdaddress}" search HID | \
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/usr/bin/grep -q "^Record Handle: " || exit 0
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printf "\nThis device provides human interface device services.\n"
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read -p "Set it up? [yes]: " _r
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case "${_r}" in
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no|n|NO|N|No|nO) exit 0;;
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*);;
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esac
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# Here we have found an HID and were asked to set it up
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# NOTE: look out for the two exit 0 above if you extend this script
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if ! /usr/sbin/service bthidd enabled; then
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printf "\nWarning: bthidd is not enabled."
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printf "\nThis daemon manages Bluetooth HID devices.\n"
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read -p "Enable bthidd? [yes]: " _r
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case "${_r}" in
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no|n|NO|N|No|nO) ;;
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*) /usr/sbin/service bthidd enable;;
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esac
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fi
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# Check if bthidd already knows about this device
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bthidd_known=$( /usr/sbin/bthidcontrol -a "${bdaddress}" known | \
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/usr/bin/grep "${bdaddress}" )
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if [ "${bthidd_known}" ]; then
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printf "Notice: Device %s already known to bthidd.\n" "${bdaddress}"
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return 0
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fi
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bthidd_config=$( /usr/sbin/sysrc -n bthidd_config )
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printf "Writing HID descriptor block to %s ... " "${bthidd_config}"
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/usr/sbin/bthidcontrol -a "${bdaddress}" query >> "${bthidd_config}"
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# Re-read config to see if we succeeded adding the device
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bthidd_known=$( /usr/sbin/bthidcontrol -a "${bdaddress}" known | \
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grep "${bdaddress}" )
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if ! [ "${bthidd_known}" ]; then
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printf "failed.\n"
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else
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printf "success.\nTo re-read its config, bthidd must be restarted.\n"
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printf "Warning: If a Bluetooth keyboard is being used, the connection"
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printf "might be lost.\n"
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printf "It can be manually restarted later with\n"
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printf " service bthidd restart\n"
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read -p "Restart bthidd now? [yes]: " _r
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case "${_r}" in
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no|n|NO|N|No|nO) ;;
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*) /usr/sbin/service bthidd onerestart;;
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esac
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fi
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}
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# After function definitions, main() can use them
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main "$@"
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exit 0
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# TODO
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# * If device is a keyboard, offer a text entry test field and if it does
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# not succeed, leave some clues for debugging (i.e. if the node responds
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# to pings, maybe switch keyboard on/off, etc)
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# * Same if device is a mouse, i.e. hexdump /dev/sysmouse.
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# * If device offers DUN profiles, ask the user if an entry in
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# /etc/ppp/ppp.conf should be created
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# * If OPUSH or SPP is offered, refer to the respective man pages to give
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# some clues how to continue
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