Package: bluez Version: 5.23-2+b1 Severity: normal Dear Maintainer,
I got difficulties to get bluetooth devices with SMP enabled (Security Manager Protocol) with recent kernels. I haven't fully try to find the exact version, but looking on the internet it seems the issue started with version 4.1.6. It seems it was working by chance before, and that the commit 25ba2653 (Bluetooth: Fix NULL pointer dereference in smp_conn_security) make it always fail. According to one of the bluetooth maintainer [1], the problem is that the bluetooth adapter is started with the legacy command hciconfig, which doesn't initialize the security context. Indeed I have found a call to such command in the 50-bluetooth-hci-auto-poweron.rules udev rule. I have tried to replace it with a more modern command using dbus, but it seems to fail as the bluetooth daemon is not working at that time. I have been able to workaround that with a ugly sleep command. I ended up with the following rules file, which allow my bluetooth mouse to work correctly: # Set bluetooth power up ACTION=="add", SUBSYSTEM=="bluetooth", KERNEL=="hci[0-9]*", RUN+="/bin/sh -c 'sleep .5 ; /usr/bin/dbus-send --system --type=method_call --dest=org.bluez /org/bluez/%k org.freedesktop.DBus.Properties.Set string:org.bluez.Adapter1 string:Powered variant:boolean:true'" There is probably a better way to do that, but I don't know the bluez stack enough to avoid the sleep command. Regards, Aurelien PS: the problem is reported from a jessie system as I don't have a sid system around with bluetooth available for now, but I have reasons to believe the problem is still the same in sid. [1] http://www.spinics.net/lists/linux-bluetooth/msg64021.html -- System Information: Debian Release: 8.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-0.bpo.1-amd64 (SMP w/4 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages bluez depends on: ii dbus 1.8.20-0+deb8u1 ii init-system-helpers 1.22 ii kmod 18-3 ii libc6 2.19-18+deb8u1 ii libdbus-1-3 1.8.20-0+deb8u1 ii libglib2.0-0 2.42.1-1 ii libreadline6 6.3-8+b3 ii libudev1 215-17+deb8u2 ii lsb-base 4.1+Debian13+nmu1 ii udev 215-17+deb8u2 bluez recommends no packages. bluez suggests no packages. -- no debconf information -- debsums errors found: debsums: changed file /lib/udev/rules.d/50-bluetooth-hci-auto-poweron.rules (from bluez package)
