Re: [PATCH v1] Need bluetooth socket permission for pulseaudio.

On 5/10/2024 1:50 AM, Raghavender Reddy Bujala wrote:
> Resolve selinux permission for ofono:
> 
> [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio agent with ofono: org.freedesktop.DBus.Error.AccessDenied: An SELinux policy prevents this sender from sending this message to this recipient, 0 matched rules; type="method_call", sender=":1.14" (uid=989 pid=1937 comm="/usr/bin/pulseaudio --system --daemonize=no -v" label="system_u:system_r:pulseaudio_t:s0-s15:c0.c1023") interface="org.ofono.HandsfreeAudioManager" member="Register" error name="(unset)" requested_reply="0" destination="org.ofono" (uid=0 pid=942 comm="/usr/sbin/ofonod -n" label="system_u:system_r:initrc_t:s0-s15:c0.c1023")

It looks like we need a domain for ofonod.  Your system has it running 
is in the initrc_t domain, which is intended only for init scripts and 
the like.  It's not intended to be used for long-running processes.



> Resolve these AVC denials for native HSP:
> 
> avc:  denied  { create } for  pid=1271 comm="pulseaudio" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { bind } for  pid=1271 comm="pulseaudio" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { listen } for  pid=1271 comm="pulseaudio" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { accept } for  pid=1271 comm="pulseaudio" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { getopt } for  pid=1271 comm="bluetooth" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { setopt } for  pid=1271 comm="bluetooth" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { read } for  pid=1271 comm="bluetooth" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> avc:  denied  { write } for  pid=1271 comm="bluetooth" scontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tcontext=system_u:system_r:pulseaudio_t:s0-s15:c0.c1023 tclass=bluetooth_socket permissive=1
> 
> Signed-off-by: Raghavender Reddy Bujala<[email protected]>
> ---
>   policy/modules/apps/pulseaudio.te |  4 ++++
>   policy/modules/services/dbus.te   |  1 +
>   policy/modules/system/init.if     | 18 ++++++++++++++++++
>   3 files changed, 23 insertions(+)
> 
> diff --git a/policy/modules/apps/pulseaudio.te b/policy/modules/apps/pulseaudio.te
> index 65b9a7428..a2ff85c8a 100644
> --- a/policy/modules/apps/pulseaudio.te
> +++ b/policy/modules/apps/pulseaudio.te
> @@ -318,3 +318,7 @@ optional_policy(`
>   optional_policy(`
>   	unconfined_signull(pulseaudio_client)
>   ')
> +
> +init_dbus_chat_script(pulseaudio_t)
> +init_bt_socket_manage(pulseaudio_t)
> +allow pulseaudio_t self:bluetooth_socket { create accept bind getopt listen read setopt write };
> diff --git a/policy/modules/services/dbus.te b/policy/modules/services/dbus.te
> index 2d1d09d71..9e1288b77 100644
> --- a/policy/modules/services/dbus.te
> +++ b/policy/modules/services/dbus.te
> @@ -391,3 +391,4 @@ optional_policy(`
>   
>   allow dbusd_unconfined { dbusd_session_bus_client dbusd_system_bus_client }:dbus send_msg;
>   allow dbusd_unconfined { system_dbusd_t session_bus_type }:dbus all_dbus_perms;
> +init_bt_socket_manage(system_dbusd_t)
> diff --git a/policy/modules/system/init.if b/policy/modules/system/init.if
> index 4891301ad..3ae6bced3 100644
> --- a/policy/modules/system/init.if
> +++ b/policy/modules/system/init.if
> @@ -3920,3 +3920,21 @@ interface(`init_search_keys',`
>   
>   	allow $1 init_t:key search;
>   ')
> +
> +########################################
> +## <summary>
> +##    Read, Write and manage options for bluetooth socket
> +## </summary>
> +## <param name="domain">
> +##    <summary>
> +##    Domain allowed access.
> +##    </summary>
> +## </param>
> +#
> +
> +interface(`init_bt_socket_manage',`
> +        gen_require(`
> +                type initrc_t;
> +        ')
> +        allow $1 initrc_t:bluetooth_socket { getopt read setopt write };
> +')

-- 
Chris PeBenito