Here are the patches I used last time I tried to get MLS going on Debian. Index: refpolicy-2.20180701/policy/modules/kernel/kernel.te =================================================================== --- refpolicy-2.20180701.orig/policy/modules/kernel/kernel.te +++ refpolicy-2.20180701/policy/modules/kernel/kernel.te @@ -39,6 +39,7 @@ role unconfined_r; ifdef(`enable_mls',` role secadm_r; role auditadm_r; + mls_process_set_level(kernel_t) ') # Index: refpolicy-2.20180701/policy/modules/system/systemd.te =================================================================== --- refpolicy-2.20180701.orig/policy/modules/system/systemd.te +++ refpolicy-2.20180701/policy/modules/system/systemd.te @@ -251,7 +251,13 @@ systemd_log_parse_environment(systemd_gp allow systemd_cgroups_t self:capability net_admin; -kernel_domtrans_to(systemd_cgroups_t, systemd_cgroups_exec_t) +ifdef(`enable_mls',` + kernel_ranged_domtrans_to(systemd_cgroups_t, systemd_cgroups_exec_t, s0 - mls_systemhigh) + mls_fd_use_all_levels(systemd_cgroups_t) +',` + kernel_domtrans_to(systemd_cgroups_t, systemd_cgroups_exec_t) +') + kernel_dgram_send(systemd_cgroups_t) # for /proc/cmdline kernel_read_system_state(systemd_cgroups_t) Index: refpolicy-2.20180701/policy/modules/system/init.te =================================================================== --- refpolicy-2.20180701.orig/policy/modules/system/init.te +++ refpolicy-2.20180701/policy/modules/system/init.te @@ -191,6 +191,7 @@ mls_file_read_all_levels(init_t) mls_file_write_all_levels(init_t) mls_process_write_all_levels(init_t) mls_fd_use_all_levels(init_t) +mls_process_set_level(init_t) # the following one is needed for libselinux:is_selinux_enabled() # otherwise the call fails and sysvinit tries to load the policy @@ -384,6 +385,8 @@ ifdef(`init_systemd',` # systemd_socket_activated policy mls_socket_write_all_levels(init_t) + # read from systemd-journal and similar + mls_socket_read_to_clearance(init_t) selinux_unmount_fs(init_t) selinux_validate_context(init_t) Index: refpolicy-2.20180701/policy/modules/system/logging.if =================================================================== --- refpolicy-2.20180701.orig/policy/modules/system/logging.if +++ refpolicy-2.20180701/policy/modules/system/logging.if @@ -422,6 +422,9 @@ interface(`logging_domtrans_syslog',` corecmd_search_bin($1) domtrans_pattern($1, syslogd_exec_t, syslogd_t) + ifdef(`enable_mls',` + range_transition $1 syslogd_exec_t:process mls_systemhigh; + ') ') ########################################
