diff options
Diffstat (limited to 'contrib/selinux/pasta.te')
| -rw-r--r-- | contrib/selinux/pasta.te | 73 |
1 files changed, 58 insertions, 15 deletions
diff --git a/contrib/selinux/pasta.te b/contrib/selinux/pasta.te index 4e36c3f..9440d05 100644 --- a/contrib/selinux/pasta.te +++ b/contrib/selinux/pasta.te @@ -18,6 +18,7 @@ require { type bin_t; type user_home_t; type user_home_dir_t; + type user_tmp_t; type fs_t; type tmp_t; type tmpfs_t; @@ -56,8 +57,10 @@ require { attribute port_type; type port_t; type http_port_t; + type http_cache_port_t; type ssh_port_t; type reserved_port_t; + type unreserved_port_t; type dns_port_t; type dhcpc_port_t; type chronyd_port_t; @@ -68,9 +71,6 @@ require { type system_dbusd_t; type systemd_hostnamed_t; type systemd_systemctl_exec_t; - type passwd_file_t; - type sssd_public_t; - type sssd_var_lib_t; class dbus send_msg; class system module_request; class system status; @@ -89,6 +89,15 @@ require { class capability { sys_tty_config setuid setgid }; class cap_userns { setpcap sys_admin sys_ptrace net_bind_service net_admin }; class user_namespace create; + + # Container requires + attribute_role usernetctl_roles; + role container_user_r; + role staff_r; + role user_r; + type container_runtime_t; + type container_t; + type systemd_user_runtimedir_t; } type pasta_t; @@ -113,10 +122,12 @@ init_daemon_domain(pasta_t, pasta_exec_t) allow pasta_t self:capability { setpcap net_bind_service sys_tty_config dac_read_search net_admin sys_resource setuid setgid }; allow pasta_t self:cap_userns { setpcap sys_admin sys_ptrace net_admin net_bind_service }; +# pasta only calls setuid and setgid with the current UID and GID, so this +# denial is harmless. See https://bugzilla.redhat.com/show_bug.cgi?id=2330512#c10 +dontaudit pasta_t self:cap_userns { setgid setuid }; allow pasta_t self:user_namespace create; -allow pasta_t passwd_file_t:file read_file_perms; -sssd_search_lib(pasta_t) +auth_read_passwd(pasta_t) domain_auto_trans(pasta_t, bin_t, unconfined_t); domain_auto_trans(pasta_t, shell_exec_t, unconfined_t); @@ -126,17 +137,22 @@ domain_auto_trans(pasta_t, ping_exec_t, ping_t); allow pasta_t nsfs_t:file { open read }; -allow pasta_t user_home_t:dir getattr; -allow pasta_t user_home_t:file { open read getattr setattr }; +allow pasta_t user_home_t:dir { getattr search }; +allow pasta_t user_home_t:file { open read getattr setattr execute execute_no_trans map}; allow pasta_t user_home_dir_t:dir { search getattr open add_name read write }; allow pasta_t user_home_dir_t:file { create open read write }; allow pasta_t tmp_t:dir { add_name mounton remove_name write }; -allow pasta_t tmpfs_t:filesystem mount; +allow pasta_t tmpfs_t:filesystem { getattr mount }; allow pasta_t fs_t:filesystem unmount; allow pasta_t root_t:dir mounton; manage_files_pattern(pasta_t, pasta_pid_t, pasta_pid_t) files_pid_filetrans(pasta_t, pasta_pid_t, file) +allow pasta_t user_tmp_t:dir { add_name remove_name search write }; +allow pasta_t user_tmp_t:fifo_file append; +allow pasta_t user_tmp_t:file { create open write }; +allow pasta_t user_tmp_t:sock_file { create unlink }; + allow pasta_t console_device_t:chr_file { open write getattr ioctl }; allow pasta_t user_devpts_t:chr_file { getattr read write ioctl }; logging_send_syslog_msg(pasta_t) @@ -152,6 +168,11 @@ allow pasta_t tmp_t:sock_file { create unlink write }; allow pasta_t self:tcp_socket create_stream_socket_perms; corenet_tcp_sendrecv_generic_node(pasta_t) corenet_tcp_bind_generic_node(pasta_t) +allow pasta_t container_runtime_t:dir { open read search }; +allow pasta_t container_runtime_t:fifo_file { getattr write }; +allow pasta_t container_runtime_t:file read; +allow pasta_t container_runtime_t:lnk_file read; +allow pasta_t container_t:lnk_file read; allow pasta_t pasta_port_t:tcp_socket { name_bind name_connect }; allow pasta_t pasta_port_t:udp_socket { name_bind }; allow pasta_t http_port_t:tcp_socket { name_bind name_connect }; @@ -164,6 +185,8 @@ allow pasta_t self:udp_socket create_stream_socket_perms; allow pasta_t reserved_port_t:udp_socket name_bind; allow pasta_t llmnr_port_t:tcp_socket name_bind; allow pasta_t llmnr_port_t:udp_socket name_bind; +allow pasta_t http_cache_port_t:tcp_socket { name_bind name_connect }; +allow pasta_t unreserved_port_t:udp_socket name_bind; corenet_udp_sendrecv_generic_node(pasta_t) corenet_udp_bind_generic_node(pasta_t) allow pasta_t node_t:icmp_socket { name_bind node_bind }; @@ -175,15 +198,12 @@ allow pasta_t init_t:lnk_file read; allow pasta_t init_t:unix_stream_socket connectto; allow pasta_t init_t:dbus send_msg; allow pasta_t init_t:system status; -allow pasta_t unconfined_t:dir search; +allow pasta_t unconfined_t:dir { read search }; allow pasta_t unconfined_t:file read; allow pasta_t unconfined_t:lnk_file read; -allow pasta_t passwd_file_t:file { getattr open read }; allow pasta_t self:process { setpgid setcap }; allow pasta_t shell_exec_t:file { execute execute_no_trans map }; -allow pasta_t sssd_var_lib_t:dir search; -allow pasta_t sssd_public_t:dir search; allow pasta_t hostname_exec_t:file { execute execute_no_trans getattr open read map }; allow pasta_t system_dbusd_t:unix_stream_socket connectto; allow pasta_t system_dbusd_t:dbus send_msg; @@ -196,11 +216,9 @@ allow pasta_t ifconfig_var_run_t:dir { read search watch }; allow pasta_t self:tun_socket create; allow pasta_t tun_tap_device_t:chr_file { ioctl open read write }; allow pasta_t sysctl_net_t:dir search; -allow pasta_t sysctl_net_t:file { open write }; +allow pasta_t sysctl_net_t:file { open read write }; allow pasta_t kernel_t:system module_request; -allow pasta_t nsfs_t:file read; - allow pasta_t proc_t:dir mounton; allow pasta_t proc_t:filesystem mount; allow pasta_t net_conf_t:lnk_file read; @@ -212,3 +230,28 @@ allow pasta_t netutils_t:process { noatsecure rlimitinh siginh }; allow pasta_t ping_t:process { noatsecure rlimitinh siginh }; allow pasta_t user_tty_device_t:chr_file { append read write }; allow pasta_t user_devpts_t:chr_file { append read write }; + +# Allow network administration commands for non-privileged users +roleattribute container_user_r usernetctl_roles; +roleattribute staff_r usernetctl_roles; +roleattribute user_r usernetctl_roles; +role usernetctl_roles types pasta_t; + +# Make pasta in a container run under the pasta_t context +type_transition container_runtime_t pasta_exec_t : process pasta_t; +allow container_runtime_t pasta_t:process transition; + +# Label the user network namespace files +type_transition container_runtime_t user_tmp_t : dir ifconfig_var_run_t "netns"; +type_transition container_runtime_t user_tmp_t : dir ifconfig_var_run_t "rootless-netns"; +allow pasta_t ifconfig_var_run_t:dir { add_name open rmdir write }; +allow pasta_t ifconfig_var_run_t:file { create open write }; +allow systemd_user_runtimedir_t ifconfig_var_run_t:dir rmdir; + +# Allow pasta to bind to any port +bool pasta_bind_all_ports true; +if (pasta_bind_all_ports) { + allow pasta_t port_type:icmp_socket { accept getopt name_bind }; + allow pasta_t port_type:tcp_socket { accept getopt name_bind name_connect }; + allow pasta_t port_type:udp_socket { accept getopt name_bind }; +} |