This patch has a number of small patches most of which are needed in a
"strict" configuration. Also remove the systemd_analyze_t domain which
does no good.
Signed-off-by: Russell Coker <[email protected]>
Index: refpolicy-2.20210112/policy/modules/system/userdomain.if
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/system/userdomain.if
+++ refpolicy-2.20210112/policy/modules/system/userdomain.if
@@ -68,6 +68,8 @@ template(`userdom_base_user_template',`
dontaudit $1_t user_tty_device_t:chr_file ioctl;
kernel_read_kernel_sysctls($1_t)
+ kernel_read_crypto_sysctls($1_t)
+ kernel_read_vm_overcommit_sysctl($1_t)
kernel_dontaudit_list_unlabeled($1_t)
kernel_dontaudit_getattr_unlabeled_files($1_t)
kernel_dontaudit_getattr_unlabeled_symlinks($1_t)
Index: refpolicy-2.20210112/policy/modules/roles/sysadm.te
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/roles/sysadm.te
+++ refpolicy-2.20210112/policy/modules/roles/sysadm.te
@@ -33,11 +33,22 @@ ifndef(`enable_mls',`
# Local policy
#
+allow sysadm_t self:netlink_generic_socket { create setopt bind write read };
+
+# for ptrace
+allow sysadm_t self:netlink_tcpdiag_socket { create write nlmsg_read read };
+
+allow sysadm_t self:capability audit_write;
+allow sysadm_t self:system status;
+
corecmd_exec_shell(sysadm_t)
corenet_ib_access_unlabeled_pkeys(sysadm_t)
corenet_ib_manage_subnet_unlabeled_endports(sysadm_t)
+domain_getsched_all_domains(sysadm_t)
+
+dev_read_cpuid(sysadm_t)
dev_read_kmsg(sysadm_t)
mls_process_read_all_levels(sysadm_t)
@@ -55,6 +66,9 @@ init_admin(sysadm_t)
userdom_manage_user_home_dirs(sysadm_t)
userdom_home_filetrans_user_home_dir(sysadm_t)
+# for systemd-analyze
+files_get_etc_unit_status(sysadm_t)
+
ifdef(`direct_sysadm_daemon',`
optional_policy(`
init_run_daemon(sysadm_t, sysadm_r)
@@ -1117,6 +1131,10 @@ optional_policy(`
')
optional_policy(`
+ systemd_dbus_chat_logind(sysadm_t)
+')
+
+optional_policy(`
tboot_run_txtstat(sysadm_t, sysadm_r)
')
@@ -1184,6 +1202,7 @@ optional_policy(`
')
optional_policy(`
+ dev_rw_generic_usb_dev(sysadm_t)
usbmodules_run(sysadm_t, sysadm_r)
')
Index: refpolicy-2.20210112/policy/modules/services/xserver.if
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/services/xserver.if
+++ refpolicy-2.20210112/policy/modules/services/xserver.if
@@ -100,6 +100,7 @@ interface(`xserver_restricted_role',`
xserver_xsession_entry_type($2)
xserver_dontaudit_write_log($2)
xserver_stream_connect_xdm($2)
+ xserver_use_user_fonts($2)
# certain apps want to read xdm.pid file
xserver_read_xdm_runtime_files($2)
# gnome-session creates socket under /tmp/.ICE-unix/
@@ -141,7 +142,7 @@ interface(`xserver_role',`
gen_require(`
type iceauth_home_t, xserver_t, xserver_tmp_t, xserver_tmpfs_t, xauth_home_t;
type user_fonts_t, user_fonts_cache_t, user_fonts_config_t;
- type mesa_shader_cache_t;
+ type mesa_shader_cache_t, xdm_t;
')
xserver_restricted_role($1, $2)
@@ -184,6 +185,8 @@ interface(`xserver_role',`
xserver_read_xkb_libs($2)
+ allow $2 xdm_t:unix_stream_socket accept;
+
optional_policy(`
xdg_cache_filetrans($2, mesa_shader_cache_t, dir, "mesa_shader_cache")
')
@@ -1239,6 +1242,7 @@ interface(`xserver_read_xkb_libs',`
allow $1 xkb_var_lib_t:dir list_dir_perms;
read_files_pattern($1, xkb_var_lib_t, xkb_var_lib_t)
read_lnk_files_pattern($1, xkb_var_lib_t, xkb_var_lib_t)
+ allow $1 xkb_var_lib_t:file map;
')
########################################
Index: refpolicy-2.20210112/policy/modules/services/dbus.if
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/services/dbus.if
+++ refpolicy-2.20210112/policy/modules/services/dbus.if
@@ -84,6 +84,7 @@ template(`dbus_role_template',`
allow $3 $1_dbusd_t:unix_stream_socket connectto;
allow $3 $1_dbusd_t:dbus { send_msg acquire_svc };
+ allow $1_dbusd_t $3:dbus send_msg;
allow $3 $1_dbusd_t:fd use;
allow $3 system_dbusd_t:dbus { send_msg acquire_svc };
@@ -99,9 +100,13 @@ template(`dbus_role_template',`
allow $1_dbusd_t $3:process sigkill;
+ allow $1_dbusd_t self:process getcap;
+
corecmd_bin_domtrans($1_dbusd_t, $3)
corecmd_shell_domtrans($1_dbusd_t, $3)
+ dev_read_sysfs($1_dbusd_t)
+
auth_use_nsswitch($1_dbusd_t)
ifdef(`hide_broken_symptoms',`
@@ -111,6 +116,15 @@ template(`dbus_role_template',`
optional_policy(`
systemd_read_logind_runtime_files($1_dbusd_t)
')
+
+ optional_policy(`
+ init_dbus_chat($1_dbusd_t)
+ dbus_system_bus_client($1_dbusd_t)
+ ')
+
+ optional_policy(`
+ xdg_read_data_files($1_dbusd_t)
+ ')
')
#######################################
Index: refpolicy-2.20210112/policy/modules/services/ssh.if
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/services/ssh.if
+++ refpolicy-2.20210112/policy/modules/services/ssh.if
@@ -439,6 +439,7 @@ template(`ssh_role_template',`
xserver_use_xdm_fds($1_ssh_agent_t)
xserver_rw_xdm_pipes($1_ssh_agent_t)
xserver_sigchld_xdm($1_ssh_agent_t)
+ xserver_write_inherited_xsession_log($1_ssh_agent_t)
')
')
Index: refpolicy-2.20210112/policy/modules/kernel/corecommands.te
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/kernel/corecommands.te
+++ refpolicy-2.20210112/policy/modules/kernel/corecommands.te
@@ -13,7 +13,7 @@ attribute exec_type;
#
# bin_t is the type of files in the system bin/sbin directories.
#
-type bin_t alias { ls_exec_t sbin_t };
+type bin_t alias { ls_exec_t sbin_t systemd_analyze_exec_t };
corecmd_executable_file(bin_t)
dev_associate(bin_t) #For /dev/MAKEDEV
Index: refpolicy-2.20210112/policy/modules/system/systemd.te
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/system/systemd.te
+++ refpolicy-2.20210112/policy/modules/system/systemd.te
@@ -55,10 +55,6 @@ type systemd_activate_t;
type systemd_activate_exec_t;
init_system_domain(systemd_activate_t, systemd_activate_exec_t)
-type systemd_analyze_t;
-type systemd_analyze_exec_t;
-init_daemon_domain(systemd_analyze_t, systemd_analyze_exec_t)
-
type systemd_backlight_t;
type systemd_backlight_exec_t;
init_system_domain(systemd_backlight_t, systemd_backlight_exec_t)
@@ -1363,6 +1359,7 @@ tunable_policy(`systemd_tmpfiles_manage_
')
optional_policy(`
+ dbus_manage_lib_files(systemd_tmpfiles_t)
dbus_read_lib_files(systemd_tmpfiles_t)
dbus_relabel_lib_dirs(systemd_tmpfiles_t)
')
Index: refpolicy-2.20210112/policy/modules/services/cron.te
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/services/cron.te
+++ refpolicy-2.20210112/policy/modules/services/cron.te
@@ -493,6 +493,7 @@ kernel_getattr_core_if(system_cronjob_t)
kernel_getattr_message_if(system_cronjob_t)
kernel_read_crypto_sysctls(system_cronjob_t)
+kernel_read_fs_sysctls(system_cronjob_t)
kernel_read_irq_sysctls(system_cronjob_t)
kernel_read_kernel_sysctls(system_cronjob_t)
kernel_read_network_state(system_cronjob_t)
Index: refpolicy-2.20210112/policy/modules/apps/pulseaudio.te
===================================================================
--- refpolicy-2.20210112.orig/policy/modules/apps/pulseaudio.te
+++ refpolicy-2.20210112/policy/modules/apps/pulseaudio.te
@@ -156,6 +156,7 @@ userdom_search_user_home_content(pulseau
userdom_manage_user_tmp_dirs(pulseaudio_t)
userdom_manage_user_tmp_files(pulseaudio_t)
userdom_manage_user_tmp_sockets(pulseaudio_t)
+userdom_write_all_user_runtime_named_sockets(pulseaudio_t)
tunable_policy(`pulseaudio_execmem',`
allow pulseaudio_t self:process execmem;
On 1/12/21 5:31 AM, Russell Coker wrote:
> Also remove the systemd_analyze_t domain which
> does no good.
I proposed this same change on github:
https://github.com/SELinuxProject/refpolicy/pull/321
The consensus there was that having a separate domain for this access
would add value and the better direction would be to flesh out the
permissions it needs.? We have a bit of a starting point locally on
that.? I'm not sure what shape it's in with regard to upstreaming, but
I'll talk to the developer who worked on it.
-Daniel
On 1/12/21 9:15 AM, Daniel Burgener wrote:
> On 1/12/21 5:31 AM, Russell Coker wrote:
>> Also remove the systemd_analyze_t domain which
>> does no good.
>
> I proposed this same change on github:
> https://github.com/SELinuxProject/refpolicy/pull/321
>
> The consensus there was that having a separate domain for this access
> would add value and the better direction would be to flesh out the
> permissions it needs.? We have a bit of a starting point locally on
> that.? I'm not sure what shape it's in with regard to upstreaming, but
> I'll talk to the developer who worked on it.
>
> -Daniel
My mistake - looks like we ended up granting the needed permissions to
the parent domain in our environment, so I don't have any
systemd-analyze policy available for upstream.? I still might try
developing some, but I don't expect that I'm likely to get to it soon.
-Daniel