From 4fc91539f67dd3ba8e23a44d4f5f89823274b0ff Mon Sep 17 00:00:00 2001
From: Chris PeBenito <cpebenito@tresys.com>
Date: Thu, 5 May 2005 17:44:36 +0000
Subject: [PATCH] initial commit

---
 refpolicy/policy/modules/admin/netutils.te    | 228 ++++++++++++++++++
 .../policy/modules/services/remotelogin.te    | 178 ++++++++++++++
 2 files changed, 406 insertions(+)
 create mode 100644 refpolicy/policy/modules/admin/netutils.te
 create mode 100644 refpolicy/policy/modules/services/remotelogin.te

diff --git a/refpolicy/policy/modules/admin/netutils.te b/refpolicy/policy/modules/admin/netutils.te
new file mode 100644
index 00000000..fcfef787
--- /dev/null
+++ b/refpolicy/policy/modules/admin/netutils.te
@@ -0,0 +1,228 @@
+# Copyright (C) 2005 Tresys Technology, LLC
+
+policy_module(devices,1.0)
+
+########################################
+#
+# Declarations
+#
+
+type netutils_t;
+type netutils_exec_t;
+domain_make_system_domain(netutils_t,netutils_exec_t)
+role system_r types netutils_t;
+
+type netutils_tmp_t;
+files_make_file(netutils_tmp_t)
+
+type ping_t; #, nscd_client_domain;
+type ping_exec_t;
+domain_make_system_domain(ping_t,ping_exec_t)
+role system_r types ping_t;
+
+type traceroute_t; #, nscd_client_domain;
+type traceroute_exec_t;
+domain_make_system_domain(traceroute_t,traceroute_exec_t)
+role system_r types traceroute_t;
+
+#
+# Control users use of ping and traceroute
+#
+bool user_ping false;
+
+########################################
+#
+# Netutils local policy
+#
+
+# Perform network administration operations and have raw access to the network.
+allow netutils_t self:capability { net_admin net_raw setuid setgid };
+allow netutils_t self:process { sigkill sigstop signull signal };
+allow netutils_t self:netlink_route_socket { bind create getattr nlmsg_read nlmsg_write read write };
+allow netutils_t self:packet_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+allow netutils_t self:udp_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+allow netutils_t self:tcp_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+
+allow netutils_t netutils_tmp_t:dir { create read getattr lock setattr ioctl link unlink rename search add_name remove_name reparent write rmdir };
+allow netutils_t netutils_tmp_t:file { create ioctl read getattr lock write setattr append link unlink rename };
+files_create_private_tmp_data(netutils_t, netutils_tmp_t, { file dir })
+
+corenetwork_network_tcp_on_all_interfaces(netutils_t)
+corenetwork_network_raw_on_all_interfaces(netutils_t)
+corenetwork_network_udp_on_all_interfaces(netutils_t)
+corenetwork_network_tcp_on_all_nodes(netutils_t)
+corenetwork_network_raw_on_all_nodes(netutils_t)
+corenetwork_network_udp_on_all_nodes(netutils_t)
+corenetwork_network_tcp_on_all_ports(netutils_t)
+corenetwork_network_udp_on_all_ports(netutils_t)
+corenetwork_bind_tcp_on_all_nodes(netutils_t)
+corenetwork_bind_udp_on_all_nodes(netutils_t)
+
+filesystem_get_persistent_filesystem_attributes(netutils_t)
+
+init_use_file_descriptors(netutils_t)
+init_script_use_pseudoterminal(netutils_t)
+
+domain_use_widely_inheritable_file_descriptors(netutils_t)
+
+files_read_general_system_config(netutils_t)
+# for nscd
+files_ignore_search_system_state_data_directory(netutils_t)
+
+libraries_use_dynamic_loader(netutils_t)
+libraries_read_shared_libraries(netutils_t)
+
+logging_send_system_log_message(netutils_t)
+
+miscfiles_read_localization(netutils_t)
+
+ifdef(`TODO',`
+role sysadm_r types netutils_t;
+
+can_ypbind(netutils_t)
+
+domain_auto_trans(sysadm_t, netutils_exec_t, netutils_t)
+
+# Inherit and use descriptors from init.
+allow netutils_t userdomain:fd use;
+
+# Access terminals.
+allow netutils_t admin_tty_type:chr_file rw_file_perms;
+ifdef(`gnome-pty-helper.te', `allow netutils_t sysadm_gph_t:fd use;')
+allow netutils_t proc_t:dir search;
+
+') dnl end TODO
+
+########################################
+#
+# Ping local policy
+#
+
+allow ping_t self:capability setuid;
+dontaudit ping_t self:capability sys_tty_config;
+
+allow ping_t self:tcp_socket { create connect ioctl read getattr write setattr append bind getopt setopt shutdown };
+allow ping_t self:udp_socket { create connect ioctl read getattr write setattr append bind getopt setopt shutdown };
+allow ping_t self:rawip_socket { create ioctl read write bind getopt setopt };
+
+corenetwork_network_tcp_on_all_interfaces(ping_t)
+corenetwork_network_udp_on_all_interfaces(ping_t)
+corenetwork_network_raw_on_all_interfaces(ping_t)
+corenetwork_network_raw_on_all_nodes(ping_t)
+corenetwork_network_tcp_on_all_nodes(ping_t)
+corenetwork_network_udp_on_all_nodes(ping_t)
+corenetwork_network_tcp_on_all_ports(ping_t)
+corenetwork_network_udp_on_all_ports(ping_t)
+corenetwork_bind_udp_on_all_nodes(ping_t)
+corenetwork_bind_tcp_on_all_nodes(ping_t)
+
+filesystem_ignore_get_persistent_filesystem_attributes(ping_t)
+
+terminal_ignore_use_controlling_terminal(ping_t)
+
+domain_use_widely_inheritable_file_descriptors(ping_t)
+
+files_read_general_system_config(ping_t)
+
+libraries_use_dynamic_loader(ping_t)
+libraries_read_shared_libraries(ping_t)
+
+sysnetwork_read_network_config(ping_t)
+
+logging_send_system_log_message(ping_t)
+
+if (user_ping) {
+	terminal_use_all_users_physical_terminals(ping_t)
+	terminal_use_all_users_pseudoterminals(ping_t)
+}
+
+ifdef(`TODO',`
+role sysadm_r types ping_t;
+in_user_role(ping_t)
+
+if (user_ping) {
+	domain_auto_trans(unpriv_userdomain, ping_exec_t, ping_t)
+	ifdef(`gnome-pty-helper.te', `allow ping_t gphdomain:fd use;')
+}
+
+# Transition into this domain when you run this program.
+domain_auto_trans(sysadm_t, ping_exec_t, ping_t)
+
+can_ypbind(ping_t)
+
+# Access the terminal.
+allow ping_t admin_tty_type:chr_file rw_file_perms;
+ifdef(`gnome-pty-helper.te', `allow ping_t sysadm_gph_t:fd use;')
+
+# it tries to access /var/run
+dontaudit ping_t var_t:dir search;
+') dnl end TODO
+
+########################################
+#
+# Traceroute local policy
+#
+
+allow traceroute_t self:capability { net_admin net_raw setuid setgid };
+allow traceroute_t self:rawip_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+allow traceroute_t self:packet_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+allow traceroute_t self:netlink_route_socket { bind create getattr nlmsg_read read write };
+
+kernel_read_system_state(traceroute_t)
+kernel_read_network_state(traceroute_t)
+
+corenetwork_network_tcp_on_all_interfaces(traceroute_t)
+corenetwork_network_udp_on_all_interfaces(traceroute_t)
+corenetwork_network_raw_on_all_interfaces(traceroute_t)
+corenetwork_network_raw_on_all_nodes(traceroute_t)
+corenetwork_network_tcp_on_all_nodes(traceroute_t)
+corenetwork_network_udp_on_all_nodes(traceroute_t)
+corenetwork_network_tcp_on_all_ports(traceroute_t)
+corenetwork_network_udp_on_all_ports(traceroute_t)
+corenetwork_bind_udp_on_all_nodes(traceroute_t)
+corenetwork_bind_tcp_on_all_nodes(traceroute_t)
+
+filesystem_ignore_get_persistent_filesystem_attributes(traceroute_t)
+
+domain_use_widely_inheritable_file_descriptors(traceroute_t)
+
+files_read_general_system_config(traceroute_t)
+files_ignore_search_system_state_data_directory(traceroute_t)
+
+libraries_use_dynamic_loader(traceroute_t)
+libraries_read_shared_libraries(traceroute_t)
+
+logging_send_system_log_message(traceroute_t)
+
+miscfiles_read_localization(traceroute_t)
+
+#rules needed for nmap
+devices_get_random_data(traceroute_t)
+devices_get_pseudorandom_data(traceroute_t)
+files_read_general_application_resources(traceroute_t)
+
+if (user_ping) {
+	terminal_use_all_users_physical_terminals(traceroute_t)
+	terminal_use_all_users_pseudoterminals(traceroute_t)
+}
+
+ifdef(`TODO',`
+role sysadm_r types traceroute_t;
+
+can_ypbind(traceroute_t)
+
+# Transition into this domain when you run this program.
+domain_auto_trans(sysadm_t, traceroute_exec_t, traceroute_t)
+
+# Access the terminal.
+allow traceroute_t admin_tty_type:chr_file rw_file_perms;
+ifdef(`gnome-pty-helper.te', `allow traceroute_t sysadm_gph_t:fd use;')
+
+in_user_role(traceroute_t)
+if (user_ping) {
+	domain_auto_trans(unpriv_userdomain, traceroute_exec_t, traceroute_t)
+}
+
+#rules needed for nmap
+dontaudit traceroute_t userdomain:dir search;
+') dnl end TODO
diff --git a/refpolicy/policy/modules/services/remotelogin.te b/refpolicy/policy/modules/services/remotelogin.te
new file mode 100644
index 00000000..3948ede7
--- /dev/null
+++ b/refpolicy/policy/modules/services/remotelogin.te
@@ -0,0 +1,178 @@
+# Copyright (C) 2005 Tresys Technology, LLC
+
+policy_module(authlogin,1.0)
+
+########################################
+#
+# Declarations
+#
+
+type remote_login_t; #, privuser, privrole, privlog, auth_chkpwd, privowner, nscd_client_domain;
+domain_make_domain(remote_login_t)
+domain_make_file_descriptors_widely_inheritable(remote_login_t)
+authlogin_make_login_program_entrypoint(remote_login_t)
+role system_r types remote_login_t;
+
+type remote_login_tmp_t;
+files_make_file(remote_login_tmp_t)
+
+########################################
+#
+# Remote login remote policy
+#
+
+allow remote_login_t self:capability { dac_override chown fowner fsetid kill setgid setuid net_bind_service sys_nice sys_resource sys_tty_config };
+allow remote_login_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };
+allow remote_login_t self:process { setrlimit setexec };
+allow remote_login_t self:fd use;
+allow remote_login_t self:fifo_file { read getattr lock ioctl write append };
+allow remote_login_t self:unix_dgram_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
+allow remote_login_t self:unix_stream_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown listen accept };
+allow remote_login_t self:unix_dgram_socket sendto;
+allow remote_login_t self:unix_stream_socket connectto;
+allow remote_login_t self:shm { associate getattr setattr create destroy read write lock unix_read unix_write };
+allow remote_login_t self:sem { associate getattr setattr create destroy read write unix_read unix_write };
+allow remote_login_t self:msgq { associate getattr setattr create destroy read write enqueue unix_read unix_write };
+allow remote_login_t self:msg { send receive };
+
+allow remote_login_t remote_login_tmp_t:dir { create read getattr lock setattr ioctl link unlink rename search add_name remove_name reparent write rmdir };
+allow remote_login_t remote_login_tmp_t:file { create ioctl read getattr lock write setattr append link unlink rename };
+files_create_private_tmp_data(remote_login_t, remote_login_tmp_t, { file dir })
+
+kernel_read_system_state(remote_login_t)
+kernel_read_kernel_sysctl(remote_login_t)
+kernel_get_selinuxfs_mount_point(remote_login_t)
+kernel_validate_selinux_context(remote_login_t)
+kernel_compute_selinux_av(remote_login_t)
+kernel_compute_create(remote_login_t)
+kernel_compute_relabel(remote_login_t)
+kernel_compute_reachable_user_contexts(remote_login_t)
+
+# for SSP/ProPolice
+devices_get_pseudorandom_data(remote_login_t)
+
+filesystem_get_persistent_filesystem_attributes(remote_login_t)
+
+init_script_modify_runtime_data(remote_login_t)
+
+domain_read_all_entrypoint_programs(remote_login_t)
+
+files_read_general_system_config(remote_login_t)
+files_read_runtime_system_config(remote_login_t)
+files_list_home_directories(remote_login_t)
+files_read_general_application_resources(remote_login_t)
+
+libraries_use_dynamic_loader(remote_login_t)
+libraries_read_shared_libraries(remote_login_t)
+
+selinux_read_config(remote_login_t)
+selinux_read_default_contexts(remote_login_t)
+
+authlogin_ignore_read_shadow_passwords(remote_login_t)
+authlogin_modify_login_records(remote_login_t)
+authlogin_modify_last_login_log(remote_login_t)
+authlogin_pam_execute(remote_login_t)
+authlogin_pam_console_manage_runtime_data(remote_login_t)
+
+miscfiles_read_localization(remote_login_t)
+
+ifdef(`TODO',`
+allow remote_login_t unpriv_userdomain:fd use;
+can_ypbind(remote_login_t)
+ifdef(`automount.te', `
+allow remote_login_t autofs_t:dir { search getattr };
+')
+
+allow remote_login_t bin_t:dir r_dir_perms;
+allow remote_login_t bin_t:notdevfile_class_set r_file_perms;
+allow remote_login_t sbin_t:dir r_dir_perms;
+allow remote_login_t sbin_t:notdevfile_class_set r_file_perms;
+if (read_default_t) {
+allow remote_login_t default_t:dir r_dir_perms;
+allow remote_login_t default_t:notdevfile_class_set r_file_perms;
+}
+
+# Read directories and files with the readable_t type.
+# This type is a general type for "world"-readable files.
+allow remote_login_t readable_t:dir r_dir_perms;
+allow remote_login_t readable_t:notdevfile_class_set r_file_perms;
+
+# Read /var, /var/spool
+allow remote_login_t { var_t var_spool_t }:dir search;
+
+# for when /var/mail is a sym-link
+allow remote_login_t var_t:lnk_file read;
+
+# Read /dev directories and any symbolic links.
+allow remote_login_t device_t:lnk_file r_file_perms;
+
+dontaudit remote_login_t sysfs_t:dir search;
+
+allow remote_login_t autofs_t:dir { search read getattr };
+allow remote_login_t mnt_t:dir r_dir_perms;
+
+if (use_nfs_home_dirs) {
+r_dir_file(remote_login_t, nfs_t)
+}
+
+if (use_samba_home_dirs) {
+r_dir_file(remote_login_t, cifs_t)
+}
+
+# FIXME: what is this for?
+ifdef(`xdm.te', `
+allow xdm_t remote_login_t:process signull;
+')
+
+ifdef(`crack.te', `
+allow remote_login_t crack_db_t:file r_file_perms;
+')
+
+# Permit login to search the user home directories.
+allow remote_login_t home_dir_type:dir search;
+
+# Write to /var/log/btmp
+allow remote_login_t faillog_t:file { append read write };
+
+# Search for mail spool file.
+allow remote_login_t mail_spool_t:dir r_dir_perms;
+allow remote_login_t mail_spool_t:file getattr;
+allow remote_login_t mail_spool_t:lnk_file read;
+
+
+allow remote_login_t mouse_device_t:chr_file { getattr setattr };
+
+ifdef(`targeted_policy',`
+unconfined_domain(remote_login_t)
+domain_auto_trans(remote_login_t, shell_exec_t, unconfined_t)
+')
+
+# Only permit unprivileged user domains to be entered via rlogin,
+# since very weak authentication is used.
+login_spawn_domain(remote_login, unpriv_userdomain)
+
+allow remote_login_t devpts_t:dir search;
+allow remote_login_t userpty_type:chr_file { setattr write };
+
+# Use the pty created by rlogind.
+ifdef(`rlogind.te', `
+allow remote_login_t rlogind_devpts_t:chr_file { setattr rw_file_perms };
+
+# Relabel ptys created by rlogind.
+allow remote_login_t rlogind_devpts_t:chr_file { relabelfrom relabelto };
+')
+
+# Use the pty created by telnetd.
+ifdef(`telnetd.te', `
+allow remote_login_t telnetd_devpts_t:chr_file { setattr rw_file_perms };
+
+# Relabel ptys created by telnetd.
+allow remote_login_t telnetd_devpts_t:chr_file { relabelfrom relabelto };
+')
+
+allow remote_login_t ptyfile:chr_file { getattr relabelfrom relabelto ioctl };
+
+# Allow remote login to resolve host names (passed in via the -h switch)
+can_resolve(remote_login_t)
+
+') dnl endif TODO