On 5/23/2024 12:13 AM, Naga Bhavani Akella wrote:
Required for using acquire-notify, acquire-write options (Gatt Client)
and Sending notifications (Gatt Server)
A couple minor things remain.
Below are the avc denials that are fixed with this patch -
1. audit: type=1400 audit(1651238006.276:496):
avc: denied { read write } for pid=2165 comm="bluetoothd"
path="socket:[43207]" dev="sockfs" ino=43207
scontext=system_u:system_r:bluetooth_t:s0-s15:c0.c1023
tcontext=system_u:system_r:initrc_t:s0-s15:c0.c1023
tclass=unix_stream_socket permissive=1
2. audit: type=1400 audit(1651238006.276:497):
avc: denied { getattr } for pid=2165 comm="bluetoothd"
path="socket:[43207]" dev="sockfs" ino=43207
scontext=system_u:system_r:bluetooth_t:s0-s15:c0.c1023
tcontext=system_u:system_r:initrc_t:s0-s15:c0.c1023
tclass=unix_stream_socket permissive=1
3. audit: type=1400 audit(1651238006.272:495):
avc: denied { read write } for pid=689 comm="dbus-daemon"
path="socket:[43207]" dev="sockfs" ino=43207
scontext=system_u:system_r:system_dbusd_t:s0-s15:c0.c1023
tcontext=system_u:system_r:initrc_t:s0-s15:c0.c1023
tclass=unix_stream_socket permissive=1
4. audit: type=1400 audit(315966559.395:444):
avc: denied { use } for pid=710 comm="dbus-daemon"
path="socket:[13196]" dev="sockfs" ino=13196
scontext=system_u:system_r:system_dbusd_t:s0-s15:c0.c1023
tcontext=system_u:system_r:bluetooth_t:s0-s15:c0.c1023
tclass=fd permissive=0
5. audit: type=1400 audit(315999854.939:523):
avc: denied { read write } for pid=812 comm="dbus-daemon"
path="socket:[99469]" dev="sockfs" ino=99469
scontext=system_u:system_r:system_dbusd_t:s0-s15:c0.c1023
tcontext=system_u:system_r:bluetooth_t:s0-s15:c0.c1023
tclass=bluetooth_socket permissive=1
Signed-off-by: Naga Bhavani Akella <quic_nakella@xxxxxxxxxxx>
---
policy/modules/apps/pulseaudio.te | 2 +-
policy/modules/services/bluetooth.if | 23 +++++++++++++++++++++++
policy/modules/services/dbus.te | 2 +-
policy/modules/services/obex.te | 2 +-
4 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/policy/modules/apps/pulseaudio.te b/policy/modules/apps/pulseaudio.te
index 65b9a7428..42ed3a1d2 100644
--- a/policy/modules/apps/pulseaudio.te
+++ b/policy/modules/apps/pulseaudio.te
@@ -193,7 +193,7 @@ optional_policy(`
')
optional_policy(`
- bluetooth_stream_connect(pulseaudio_t)
+ bluetooth_use(pulseaudio_t)
')
optional_policy(`
diff --git a/policy/modules/services/bluetooth.if b/policy/modules/services/bluetooth.if
index c7e1c3f14..edead1fa1 100644
--- a/policy/modules/services/bluetooth.if
+++ b/policy/modules/services/bluetooth.if
@@ -85,6 +85,29 @@ interface(`bluetooth_stream_connect',`
stream_connect_pattern($1, bluetooth_runtime_t, bluetooth_runtime_t, bluetooth_t)
')
+#####################################
+## <summary>
+## Connect to bluetooth over a unix domain
+## stream socket.
Please add a little more here; something about using the returned
bluetooth socket.
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain allowed access.
+## </summary>
+## </param>
+#
+interface(`bluetooth_use',`
+ gen_require(`
+ type bluetooth_t, bluetooth_runtime_t;
+ ')
+
+ files_search_runtime($1)
+ allow $1 bluetooth_t:bluetooth_socket rw_socket_perms;
+ allow $1 bluetooth_t:unix_stream_socket { connectto rw_socket_perms };
The connectto is provided by bluetooth_stream_connect(), so only the
rw_socket_perms should be needed.
Otherwise looks good.
--
Chris PeBenito
