From: Lukas Vrabec <lvrabec@redhat.com>
To: selinux-refpolicy@vger.kernel.org
Cc: Lukas Vrabec <lvrabec@redhat.com>
Subject: [PATCH] Introduce allow_bluetooth boolean
Date: Fri, 26 Apr 2019 11:27:10 +0200 [thread overview]
Message-ID: <20190426092710.320-1-lvrabec@redhat.com> (raw)
Because of new bluetooth_socket which is part of extended_socket_class
policy capability, it's possible to control which SELinux domains can
use bluetooth wireless technology. Default value of the boolean is
turned off.
Signed-off-by: Lukas Vrabec <lvrabec@redhat.com>
---
policy/global_tunables | 7 +++++++
policy/modules/admin/netutils.te | 4 ++++
policy/modules/services/arpwatch.te | 4 ++++
policy/modules/services/bluetooth.if | 4 ++++
policy/modules/services/bluetooth.te | 4 ++++
policy/modules/services/ntop.te | 4 ++++
policy/modules/system/init.te | 4 ++++
policy/modules/system/userdomain.if | 8 ++++++++
8 files changed, 39 insertions(+)
diff --git a/policy/global_tunables b/policy/global_tunables
index affc020f..69b356e2 100644
--- a/policy/global_tunables
+++ b/policy/global_tunables
@@ -4,6 +4,13 @@
# file should be used.
#
+## <desc>
+## <p>
+## Allow all system processes and Linux users to use bluetooth wireless technology.
+## </p>
+## </desc>
+gen_tunable(allow_bluetooth,false)
+
## <desc>
## <p>
## Allow unconfined executables to make their heap memory executable. Doing this is a really bad idea. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla
diff --git a/policy/modules/admin/netutils.te b/policy/modules/admin/netutils.te
index 46560a09..b4e66e8f 100644
--- a/policy/modules/admin/netutils.te
+++ b/policy/modules/admin/netutils.te
@@ -99,6 +99,10 @@ optional_policy(`
xen_append_log(netutils_t)
')
+tunable_policy(`allow_bluetooth',`
+ allow netutils_t self:bluetooth_socket create_stream_socket_perms;
+')
+
########################################
#
# Ping local policy
diff --git a/policy/modules/services/arpwatch.te b/policy/modules/services/arpwatch.te
index 87aed96f..7e817035 100644
--- a/policy/modules/services/arpwatch.te
+++ b/policy/modules/services/arpwatch.te
@@ -77,6 +77,10 @@ miscfiles_read_localization(arpwatch_t)
userdom_dontaudit_search_user_home_dirs(arpwatch_t)
userdom_dontaudit_use_unpriv_user_fds(arpwatch_t)
+tunable_policy(`allow_bluetooth',`
+ allow arpwatch_t self:bluetooth_socket create_socket_perms;
+')
+
optional_policy(`
mta_send_mail(arpwatch_t)
')
diff --git a/policy/modules/services/bluetooth.if b/policy/modules/services/bluetooth.if
index dc61988c..5fda4f69 100644
--- a/policy/modules/services/bluetooth.if
+++ b/policy/modules/services/bluetooth.if
@@ -68,6 +68,10 @@ interface(`bluetooth_stream_connect',`
files_search_pids($1)
allow $1 bluetooth_t:socket rw_socket_perms;
stream_connect_pattern($1, bluetooth_var_run_t, bluetooth_var_run_t, bluetooth_t)
+
+ tunable_policy(`deny_bluetooth',`',`
+ allow $1 bluetooth_t:bluetooth_socket rw_socket_perms;
+ ')
')
########################################
diff --git a/policy/modules/services/bluetooth.te b/policy/modules/services/bluetooth.te
index 45e5a361..fa9daa48 100644
--- a/policy/modules/services/bluetooth.te
+++ b/policy/modules/services/bluetooth.te
@@ -133,6 +133,10 @@ userdom_dontaudit_use_unpriv_user_fds(bluetooth_t)
userdom_dontaudit_use_user_terminals(bluetooth_t)
userdom_dontaudit_search_user_home_dirs(bluetooth_t)
+tunable_policy(`allow_bluetooth',`
+ allow bluetooth_t self:bluetooth_socket create_stream_socket_perms;
+')
+
optional_policy(`
dbus_system_bus_client(bluetooth_t)
dbus_connect_system_bus(bluetooth_t)
diff --git a/policy/modules/services/ntop.te b/policy/modules/services/ntop.te
index 178bbb1d..50157b88 100644
--- a/policy/modules/services/ntop.te
+++ b/policy/modules/services/ntop.te
@@ -96,6 +96,10 @@ miscfiles_read_localization(ntop_t)
userdom_dontaudit_use_unpriv_user_fds(ntop_t)
userdom_dontaudit_search_user_home_dirs(ntop_t)
+tunable_policy(`allow_bluetooth',`
+ allow ntop_t self:bluetooth_socket create_socket_perms;
+')
+
optional_policy(`
apache_read_sys_content(ntop_t)
')
diff --git a/policy/modules/system/init.te b/policy/modules/system/init.te
index 00f36c99..26eff7bc 100644
--- a/policy/modules/system/init.te
+++ b/policy/modules/system/init.te
@@ -523,6 +523,10 @@ optional_policy(`
unconfined_domain(init_t)
')
+tunable_policy(`allow_bluetooth',`
+ allow init_t self:bluetooth_socket { create_socket_perms listen };
+')
+
########################################
#
# Init script local policy
diff --git a/policy/modules/system/userdomain.if b/policy/modules/system/userdomain.if
index 5221bd13..50d2e080 100644
--- a/policy/modules/system/userdomain.if
+++ b/policy/modules/system/userdomain.if
@@ -1189,6 +1189,10 @@ template(`userdom_unpriv_user_template', `
corenet_udp_bind_generic_port($1_t)
')
+ tunable_policy(`allow_bluetooth',`
+ allow $1_t self:bluetooth_socket create_socket_perms;
+ ')
+
optional_policy(`
netutils_run_ping_cond($1_t, $1_r)
netutils_run_traceroute_cond($1_t, $1_r)
@@ -1362,6 +1366,10 @@ template(`userdom_admin_user_template',`
userdom_manage_user_home_content_sockets($1_t)
userdom_user_home_dir_filetrans_user_home_content($1_t, { dir file lnk_file fifo_file sock_file })
+ tunable_policy(`allow_bluetooth',`
+ allow $1_t self:bluetooth_socket create_stream_socket_perms;
+ ')
+
optional_policy(`
postgresql_unconfined($1_t)
')
--
2.20.1
next reply other threads:[~2019-04-26 9:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-26 9:27 Lukas Vrabec [this message]
2019-04-26 18:52 ` [PATCH] Introduce allow_bluetooth boolean Dominick Grift
2019-04-27 17:16 ` Dominick Grift
2019-04-30 17:53 Lukas Vrabec
2019-04-30 23:37 ` Chris PeBenito
2019-05-04 10:26 ` Lukas Vrabec
2019-05-06 0:36 ` Chris PeBenito
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