Bluetooth

Da Slacky.eu.

Questa guida si occuperà di spiegare passo passo come installare una periferica bluetooth su slackware 11. Le periferiche bluetooth che consentono la connettività tra telefonini, stampanti auricolari ecc ecc. L'implementazione di queste periferiche è ormai ben radicata nel kernel ma il progetto che le gestisce ha fatto un drastico cambiamento inserendo il supporto per dbus. Questo ha creato non pochi problemi, dovuti non solo alla gestione delle dipendeze (su slackware in particolare) ma anche alla gestione delle regole di dbus.

Il necessario

  • i pacchetti del progetto bluez (www.bluez.org)
  • dbus (nella versione consigliato su bluez)
  • il vostro editor di testo preferito
  • diritti di root
  • sorgenti del kernel

Messa in opera

Se avete scaricato i pacchetti da Slacky.it potete passare direttamente alla sezione configurazione

Kernel

Se il kernel da voi in uso è diverso da quello di default di Slackware 11, sarà necessario compilare anche 

Networking --->

<*> Bluetooth subsystem support  --->

--- Bluetooth subsystem support
<M>   L2CAP protocol support
<M>   SCO links support
<M>   RFCOMM protocol support
[*]     RFCOMM TTY support
<M>   BNEP protocol support
[*]     Multicast filter support
[*]     Protocol filter support
<M>   HIDP protocol support

Bluetooth device drivers  --->
<M> HCI USB driver
[*]   SCO (voice) support
<M> HCI UART driver
[*]   UART (H4) protocol support
[*]   BCSP protocol support
[*]   Transmit CRC with every BCSP packet
<M> HCI BCM203x USB driver
<M> HCI BPA10x USB driver
<M> HCI BlueFRITZ! USB driver
<M> HCI DTL1 (PC Card) driver
<M> HCI BT3C (PC Card) driver
<M> HCI BlueCard (PC Card) driver
<M> HCI UART (PC Card) device driver
<M> HCI VHCI (Virtual HCI device) driver

Ricompilando in kernel avrete così a disposizione i moduli per il supporto bluetooth.

Bluez

I pacchetti di bluez sono:

  • bluez-firmware
  • bluez-hcidump
  • bluez-libs
  • bluez-utils

Quindi per compilarli e installarli 

tar zxvpf bluez-libs*.tar.gz
cd bluez-libs*
./configure --prefix=/usr
make
if `checkinstall -v &> /dev/null`; then checkinstall; installpkgbluez-libs*.tgz; else make install; fi
cd ..
tar zxvpf bluez-firmware*.tar.gz
cd bluez-firmware*
./configure --prefix=/usr
if `checkinstall -v &> /dev/null`; then checkinstall; installpkg bluez-firmware*; else make install; fi
tar zxvpf bluez-hcidump*.tar.gz
cd bluez-hcidump*
./configure --prefix=/usr
make
if `checkinstall -v &> /dev/null`; then checkinstall; installpkg bluez-hcidump*; else make install; fi
tar zxvpf bluez-utils*.tar.gz
cd bluez-utils*
./configure --prefix=/usr
make
if `checkinstall -v &> /dev/null`; then checkinstall; installpkg bluez-utils*.tgz; else make install; fi

A questo punto il sistema è quasi pronto per funzionare.

Configurazione

Ci serve ora uno script che faccia partire il sistema, nei pacchetti di slacky è giò inserito ma c'è una piccola modifica da fare (/etc/rc.d/rc.bluetooth.conf): 

#!/bin/sh
#
# Start/stop the Bluetooth daemons
#
# This version has been modified by SukkoPera, taking inspiration from then
# Debian init script, to add support for register-passkeys
# Edited by L1q1d for enabling the discovery system.
#

set -e

PATH=/sbin:/bin:/usr/sbin:/usr/bin
NAME=bluetooth
DESC="Bluetooth subsystem"

# This script was stolen from Debian
REGISTER_PASSKEYS=/usr/lib/bluetooth/register-passkeys

HCID_NAME=hcid
SDPD_NAME=sdpd
HIDD_NAME=hidd
HID2HCI_NAME=hid2hci
RFCOMM_NAME=rfcomm
PAND_NAME=pand
DUND_NAME=dund

HCID_EXEC="`which $HCID_NAME || true`"
SDPD_EXEC="`which $SDPD_NAME || true`"
HIDD_EXEC="`which $HIDD_NAME || true`"
HID2HCI_EXEC="`which $HID2HCI_NAME || true`"
RFCOMM_EXEC="`which $RFCOMM_NAME || true`"
PAND_EXEC="`which $PAND_NAME || true`"
DUND_EXEC="`which $DUND_NAME || true`"

HCID_ENABLE=true
SDPD_ENABLE=true
HIDD_ENABLE=false
HID2HCI_ENABLE=false
RFCOMM_ENABLE=true
DUND_ENABLE=false
PAND_ENABLE=false

HCID_CONFIG="/etc/bluetooth/hcid.conf"
RFCOMM_CONFIG="/etc/bluetooth/rfcomm.conf"

HIDD_OPTIONS=""
DUND_OPTIONS=""
PAND_OPTIONS=""

[ -e /etc/rc.d/rc.bluetooth.conf ] && . /etc/rc.d/rc.bluetooth.conf

case "$1" in
  start)
        echo -n "Starting $DESC:"
        if $HCID_ENABLE && [ -x "$HCID_EXEC" -a -f "$HCID_CONFIG" ] ; then
                $HCID_EXEC -f $HCID_CONFIG
                echo -n " $HCID_NAME"
        fi
        if $SDPD_ENABLE && [ -x "$SDPD_EXEC" ] ; then
                $SDPD_EXEC
                echo -n " $SDPD_NAME"
        fi
        if $HIDD_ENABLE && [ -x "$HIDD_EXEC" ] ; then
                $HIDD_EXEC $HIDD_OPTIONS --server || true
                echo -n " $HIDD_NAME"
        fi
        if $HID2HCI_ENABLE && [ -x "$HID2HCI_EXEC" ] ; then
                $HID2HCI_EXEC --tohci > /dev/null 2>&1 || true
                echo -n " $HID2HCI_NAME"
        fi
        if $RFCOMM_ENABLE && [ -x "$RFCOMM_EXEC" -a -f "$RFCOMM_CONFIG" ] ; then
                $RFCOMM_EXEC -f $RFCOMM_CONFIG bind all || true
                echo -n " $RFCOMM_NAME"
        fi
        if $DUND_ENABLE && [ -x "$DUND_EXEC" -a -n "$DUND_OPTIONS" ] ; then
                $DUND_EXEC $DUND_OPTIONS
                echo -n " $DUND_NAME"
        fi
        if $PAND_ENABLE && [ -x "$PAND_EXEC" -a -n "$PAND_OPTIONS" ] ; then
                $PAND_EXEC $PAND_OPTIONS
                echo -n " $PAND_NAME"
        fi
        if [ -x $REGISTER_PASSKEYS ]; then
                $REGISTER_PASSKEYS
                echo -n " passkeys"
        fi
        echo "."
        # Piccola modifica da apportare <----
        echo "Enabling d-bus discovery"
        dbus-send --system --dest=org.bluez /org/bluez/hci0 org.bluez.Adapter.SetMode string:discoverable
        ;;
  stop)
        echo -n "Stopping $DESC:"
        killall $PAND_NAME > /dev/null 2>&1 || true
        echo -n " $PAND_NAME"
        killall $DUND_NAME > /dev/null 2>&1 || true
        echo -n " $DUND_NAME"
        if [ -x "$RFCOMM_EXEC" ] ; then
                $RFCOMM_EXEC release all > /dev/null 2>&1 || true
                echo -n " $RFCOMM_NAME"
        fi
        killall $HIDD_NAME > /dev/null 2>&1 || true
        echo -n " $HIDD_NAME"
        killall $SDPD_NAME > /dev/null 2>&1 || true
        echo -n " $SDPD_NAME"
        killall $HCID_NAME > /dev/null 2>&1 || true
        echo -n " $HCID_NAME"
        echo "."
        ;;
  *)
        N=/etc/rc.d/$NAME
        echo "Usage: $N {start|stop}" >&2
        exit 1
        ;;
esac

exit 0

Con il suo file di configurazione (/etc/rc.d/rc.bluetooth.conf): 

# Bluetooth configuraton file

# Start of hcid (allowed values are "true" and "false")
HCID_ENABLE=true

# Config file for hcid
HCID_CONFIG="/etc/bluetooth/hcid.conf"

# Start sdpd (allowed values are "true" and "false")
SDPD_ENABLE=true

# Start hidd (allowed values are "true" and "false")
HIDD_ENABLE=false

# Arguments to hidd
HIDD_OPTIONS=""

# Run hid2hci (allowed values are "true" and "false")
HID2HCI_ENABLE=false

# Bind rfcomm devices (allowed values are "true" and "false")
RFCOMM_ENABLE=true

# Config file for rfcomm
RFCOMM_CONFIG="/etc/bluetooth/rfcomm.conf"

# Start dund (allowed values are "true" and "false")
DUND_ENABLE=false

# Arguments to dund
DUND_OPTIONS="--listen --persist"

# Start pand (allowed values are "true" and "false")
PAND_ENABLE=false

# Arguments to pand
PAND_OPTIONS="--listen --role NAP"
<pre>
A questo punto creaimo le regole per i moduli da caricare:
<pre>cat << EOF > /etc/modprobe.d/bluetooth
alias bt-proto-0 l2cap
alias bt-proto-2 sco
alias bt-proto-3 rfcomm

ctrl + d

Non ci resta che caricare i moduli: 

modprobe bluez | bluetooth
modprobe l2cap
modprobe sco
modprobe rfcomm
Estratto da "https://www.slacky.eu/wikislack/index.php?title=Bluetooth&oldid=3306"