policy_module(usermanage,1.0)

########################################

#

# Declarations

#

type admin_passwd_exec_t;

files_file_type(admin_passwd_exec_t)

type chfn_t;

domain_obj_id_change_exempt(chfn_t)

domain_type(chfn_t)

role system_r types chfn_t;

type chfn_exec_t;

domain_entry_file(chfn_t,chfn_exec_t)

type crack_t;

role system_r types crack_t;

type crack_exec_t;

domain_entry_file(crack_t,crack_exec_t)

type crack_db_t; #, usercanread;

files_file_type(crack_db_t)

type crack_tmp_t;

files_tmp_file(crack_tmp_t)

type groupadd_t; #, nscd_client_domain;

type groupadd_exec_t;

domain_obj_id_change_exempt(groupadd_t)

init_system_domain(groupadd_t,groupadd_exec_t)

role system_r types groupadd_t;

type passwd_t;

domain_obj_id_change_exempt(passwd_t)

domain_type(passwd_t)

role system_r types passwd_t;

type passwd_exec_t;

domain_entry_file(passwd_t,passwd_exec_t)

type sysadm_passwd_t;

domain_obj_id_change_exempt(sysadm_passwd_t)

domain_type(sysadm_passwd_t)

domain_entry_file(sysadm_passwd_t,admin_passwd_exec_t)

type sysadm_passwd_tmp_t;

files_file_type(sysadm_passwd_tmp_t)

type useradd_t; # nscd_client_domain;

type useradd_exec_t;

domain_obj_id_change_exempt(useradd_t)

init_system_domain(useradd_t,useradd_exec_t)

role system_r types useradd_t;

########################################

#

# Chfn local policy

#

allow chfn_t self:capability { chown dac_override fsetid setuid setgid sys_resource };

allow chfn_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };

allow chfn_t self:process { setrlimit setfscreate };

allow chfn_t self:fd use;

allow chfn_t self:fifo_file rw_file_perms;

allow chfn_t self:unix_dgram_socket create_socket_perms;

allow chfn_t self:unix_stream_socket create_stream_socket_perms;

allow chfn_t self:unix_dgram_socket sendto;

allow chfn_t self:unix_stream_socket connectto;

allow chfn_t self:shm create_shm_perms;

allow chfn_t self:sem create_sem_perms;

allow chfn_t self:msgq create_msgq_perms;

allow chfn_t self:msg { send receive };

kernel_read_system_state(chfn_t)

selinux_get_fs_mount(chfn_t)

selinux_validate_context(chfn_t)

selinux_compute_access_vector(chfn_t)

selinux_compute_create_context(chfn_t)

selinux_compute_relabel_context(chfn_t)

selinux_compute_user_contexts(chfn_t)

term_use_all_user_ttys(chfn_t)

term_use_all_user_ptys(chfn_t)

fs_getattr_xattr_fs(chfn_t)

fs_search_auto_mountpoints(chfn_t)

# for SSP

dev_read_urand(chfn_t)

domain_use_wide_inherit_fd(chfn_t)

files_manage_generic_etc_files(chfn_t)

files_read_etc_runtime_files(chfn_t)

files_dontaudit_search_var(chfn_t)

# /usr/bin/passwd asks for w access to utmp, but it will operate

# correctly without it.  Do not audit write denials to utmp.

init_dontaudit_rw_script_pid(chfn_t)

libs_use_ld_so(chfn_t)

libs_use_shared_libs(chfn_t)

miscfiles_read_localization(chfn_t)

logging_send_syslog_msg(chfn_t)

auth_domtrans_chk_passwd(chfn_t)

auth_dontaudit_read_shadow(chfn_t)

userdom_use_unpriv_users_fd(chfn_t)

optional_policy(`nis.te',`

	nis_use_ypbind(chfn_t)

')

ifdef(`TODO',`

role sysadm_r types chfn_t;

in_user_role(chfn_t)

domain_auto_trans({ userdomain ifdef(`firstboot.te', `firstboot_t') }, chfn_exec_t, chfn_t)

ifdef(`gnome-pty-helper.te', `allow chfn_t gphdomain:fd use;')

# allow checking if a shell is executable

allow chfn_t shell_exec_t:file execute;

# user generally runs this from their home directory, so do not audit a search

# on user home dir

dontaudit chfn_t { user_home_dir_type user_home_type }:dir search;

# can exec /sbin/unix_chkpwd

allow chfn_t { bin_t sbin_t }:dir search;

# uses unix_chkpwd for checking passwords

dontaudit chfn_t selinux_config_t:dir search;

') dnl endif TODO

########################################

#

# Crack local policy

#

allow crack_t self:process { sigkill sigstop signull signal };

allow crack_t self:fifo_file rw_file_perms;

allow crack_t crack_db_t:dir rw_dir_perms;

allow crack_t crack_db_t:file create_file_perms;

allow crack_t crack_db_t:lnk_file create_file_perms;

files_search_var(crack_t)

allow crack_t crack_tmp_t:dir create_dir_perms;

allow crack_t crack_tmp_t:file create_file_perms;

files_create_tmp_files(crack_t, crack_tmp_t, { file dir })

kernel_read_system_state(crack_t)

# for SSP

dev_read_urand(crack_t)

fs_getattr_xattr_fs(crack_t)

files_read_generic_etc_files(crack_t)

files_read_etc_runtime_files(crack_t)

# for dictionaries

files_read_usr_files(crack_t)

corecmd_exec_bin(crack_t)

libs_use_ld_so(crack_t)

libs_use_shared_libs(crack_t)

logging_send_syslog_msg(crack_t)

ifdef(`TODO',`

ifdef(`crond.te', `

domain_auto_trans(system_crond_t, crack_exec_t, crack_t)

allow crack_t crond_t:fifo_file rw_file_perms;

allow crack_t crond_t:fd use;

allow crack_t crond_t:process sigchld;

')

dontaudit crack_t sysadm_home_dir_t:dir { getattr search };

') dnl endif TODO

########################################

#

# Groupadd local policy

#

allow groupadd_t self:capability { dac_override chown kill setuid sys_resource };

dontaudit groupadd_t self:capability fsetid;

allow groupadd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };

allow groupadd_t self:process { setrlimit setfscreate };

allow groupadd_t self:fd use;

allow groupadd_t self:fifo_file rw_file_perms;

allow groupadd_t self:unix_dgram_socket create_socket_perms;

allow groupadd_t self:unix_stream_socket create_stream_socket_perms;

allow groupadd_t self:unix_dgram_socket sendto;

allow groupadd_t self:unix_stream_socket connectto;

allow groupadd_t self:shm create_shm_perms;

allow groupadd_t self:sem create_sem_perms;

allow groupadd_t self:msgq create_msgq_perms;

allow groupadd_t self:msg { send receive };

fs_getattr_xattr_fs(groupadd_t)

fs_search_auto_mountpoints(groupadd_t)

# Allow access to context for shadow file

selinux_get_fs_mount(groupadd_t)

selinux_validate_context(groupadd_t)

selinux_compute_access_vector(groupadd_t)

selinux_compute_create_context(groupadd_t)

selinux_compute_relabel_context(groupadd_t)

selinux_compute_user_contexts(groupadd_t)

term_use_all_user_ttys(groupadd_t)

term_use_all_user_ptys(groupadd_t)

init_use_fd(groupadd_t)

init_read_script_pid(groupadd_t)

init_dontaudit_write_script_pid(groupadd_t)

domain_use_wide_inherit_fd(groupadd_t)

files_manage_generic_etc_files(groupadd_t)

libs_use_ld_so(groupadd_t)

libs_use_shared_libs(groupadd_t)

# Execute /usr/bin/{passwd,chfn,chsh} and /usr/sbin/{useradd,vipw}.

corecmd_exec_bin(groupadd_t)

corecmd_exec_sbin(groupadd_t)

logging_send_syslog_msg(groupadd_t)

miscfiles_read_localization(groupadd_t)

auth_manage_shadow(groupadd_t)

auth_rw_lastlog(groupadd_t)

seutil_read_config(groupadd_t)

userdom_use_unpriv_users_fd(groupadd_t)

optional_policy(`nis.te',`

	nis_use_ypbind(groupadd_t)

')

ifdef(`TODO',`

# Update /etc/shadow and /etc/passwd

allow groupadd_t { etc_t shadow_t }:file { relabelfrom relabelto };

# Access terminals.

ifdef(`gnome-pty-helper.te', `allow groupadd_t gphdomain:fd use;')

# for when /root is the cwd

dontaudit groupadd_t sysadm_home_dir_t:dir search;

') dnl end TODO

########################################

#

# Passwd local policy

#

allow passwd_t self:capability { chown dac_override fsetid setuid setgid sys_resource };

allow passwd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };

allow passwd_t self:process { setrlimit setfscreate };

allow passwd_t self:fd use;

allow passwd_t self:fifo_file rw_file_perms;

allow passwd_t self:unix_dgram_socket create_socket_perms;

allow passwd_t self:unix_stream_socket create_stream_socket_perms;

allow passwd_t self:unix_dgram_socket sendto;

allow passwd_t self:unix_stream_socket connectto;

allow passwd_t self:shm create_shm_perms;

allow passwd_t self:sem create_sem_perms;

allow passwd_t self:msgq create_msgq_perms;

allow passwd_t self:msg { send receive };

allow passwd_t crack_db_t:dir r_dir_perms;

allow passwd_t crack_db_t:file r_file_perms;

# for SSP

dev_read_urand(passwd_t)

fs_getattr_xattr_fs(passwd_t)

fs_search_auto_mountpoints(passwd_t)

selinux_get_fs_mount(passwd_t)

selinux_validate_context(passwd_t)

selinux_compute_access_vector(passwd_t)

selinux_compute_create_context(passwd_t)

selinux_compute_relabel_context(passwd_t)

selinux_compute_user_contexts(passwd_t)

# /usr/bin/passwd asks for w access to utmp, but it will operate

# correctly without it.  Do not audit write denials to utmp.

init_dontaudit_rw_script_pid(passwd_t)

domain_use_wide_inherit_fd(passwd_t)

files_read_etc_runtime_files(passwd_t)

files_manage_generic_etc_files(passwd_t)

files_search_var(passwd_t)

libs_use_ld_so(passwd_t)

libs_use_shared_libs(passwd_t)

logging_send_syslog_msg(passwd_t)

miscfiles_read_localization(passwd_t)

auth_manage_shadow(passwd_t)

userdom_use_unpriv_users_fd(passwd_t)

optional_policy(`nis.te',`

	nis_use_ypbind(passwd_t)

')

ifdef(`TODO',`

ifdef(`firstboot.te',`

domain_auto_trans(firstboot_t, passwd_exec_t, passwd_t)

')

# Update /etc/shadow and /etc/passwd

allow passwd_t { etc_t shadow_t }:file { relabelfrom relabelto };

# Inherit and use descriptors from login.

ifdef(`gnome-pty-helper.te', `allow passwd_t gphdomain:fd use;')

# allow checking if a shell is executable

allow passwd_t shell_exec_t:file execute;

# user generally runs this from their home directory, so do not audit a search

# on user home dir

dontaudit passwd_t { user_home_dir_type user_home_type }:dir search;

# make sure that getcon succeeds

allow passwd_t userdomain:dir search;

allow passwd_t userdomain:file read;

allow passwd_t userdomain:process getattr;

dontaudit passwd_t selinux_config_t:dir search;

dontaudit passwd_t var_run_t:dir search;

') dnl endif TODO

########################################

#

# Password admin local policy

#

allow sysadm_passwd_t self:capability { chown dac_override fsetid setuid setgid sys_resource };

allow sysadm_passwd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };

allow sysadm_passwd_t self:process { setrlimit setfscreate };

allow sysadm_passwd_t self:fd use;

allow sysadm_passwd_t self:fifo_file rw_file_perms;

allow sysadm_passwd_t self:unix_dgram_socket create_socket_perms;

allow sysadm_passwd_t self:unix_stream_socket create_stream_socket_perms;

allow sysadm_passwd_t self:unix_dgram_socket sendto;

allow sysadm_passwd_t self:unix_stream_socket connectto;

allow sysadm_passwd_t self:shm create_shm_perms;

allow sysadm_passwd_t self:sem create_sem_perms;

allow sysadm_passwd_t self:msgq create_msgq_perms;

allow sysadm_passwd_t self:msg { send receive };

# allow vipw to create temporary files under /var/tmp/vi.recover

allow sysadm_passwd_t sysadm_passwd_tmp_t:dir create_dir_perms;

allow sysadm_passwd_t sysadm_passwd_tmp_t:file create_file_perms;

files_create_tmp_files(sysadm_passwd_t, sysadm_passwd_tmp_t, { file dir })

files_search_var(sysadm_passwd_t)

selinux_get_fs_mount(sysadm_passwd_t)

selinux_validate_context(sysadm_passwd_t)

selinux_compute_access_vector(sysadm_passwd_t)

selinux_compute_create_context(sysadm_passwd_t)

selinux_compute_relabel_context(sysadm_passwd_t)

selinux_compute_user_contexts(sysadm_passwd_t)

# for /proc/meminfo

kernel_read_system_state(sysadm_passwd_t)

# for SSP

dev_read_urand(sysadm_passwd_t)

fs_getattr_xattr_fs(sysadm_passwd_t)

fs_search_auto_mountpoints(sysadm_passwd_t)

term_use_all_user_ttys(sysadm_passwd_t)

term_use_all_user_ptys(sysadm_passwd_t)

auth_manage_shadow(sysadm_passwd_t)

# allow vipw to exec the editor

corecmd_exec_bin(sysadm_passwd_t)

corecmd_exec_shell(sysadm_passwd_t)

files_read_usr_files(sysadm_passwd_t)

domain_use_wide_inherit_fd(sysadm_passwd_t)

files_manage_generic_etc_files(sysadm_passwd_t)

files_read_etc_runtime_files(sysadm_passwd_t)

# /usr/bin/passwd asks for w access to utmp, but it will operate

# correctly without it.  Do not audit write denials to utmp.

init_dontaudit_rw_script_pid(sysadm_passwd_t)

libs_use_ld_so(sysadm_passwd_t)

libs_use_shared_libs(sysadm_passwd_t)

miscfiles_read_localization(sysadm_passwd_t)

logging_send_syslog_msg(sysadm_passwd_t)

userdom_use_unpriv_users_fd(sysadm_passwd_t)

optional_policy(`nis.te',`

	nis_use_ypbind(sysadm_passwd_t)

')

ifdef(`TODO',`

role sysadm_r types sysadm_passwd_t;

domain_auto_trans(sysadm_t, admin_passwd_exec_t, sysadm_passwd_t)

# Inherit and use descriptors from login.

ifdef(`gnome-pty-helper.te', `allow sysadm_passwd_t gphdomain:fd use;')

# allow checking if a shell is executable

allow sysadm_passwd_t shell_exec_t:file execute;

# user generally runs this from their home directory, so do not audit a search

# on user home dir

dontaudit sysadm_passwd_t { user_home_dir_type user_home_type }:dir search;

# Update /etc/shadow and /etc/passwd

allow sysadm_passwd_t { etc_t shadow_t }:file { relabelfrom relabelto };

# for vipw - vi looks in the root home directory for config

dontaudit sysadm_passwd_t sysadm_home_dir_t:dir { getattr search };

# for nscd lookups

dontaudit sysadm_passwd_t var_run_t:dir search;

dontaudit sysadm_passwd_t selinux_config_t:dir search;

') dnl endif TODO

########################################

#

# Useradd local policy

#

allow useradd_t self:capability { dac_override chown kill fowner fsetid setuid sys_resource };

allow useradd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem dyntransition };

allow useradd_t self:process setfscreate;

allow useradd_t self:fd use;

allow useradd_t self:fifo_file rw_file_perms;

allow useradd_t self:unix_dgram_socket create_socket_perms;

allow useradd_t self:unix_stream_socket create_stream_socket_perms;

allow useradd_t self:unix_dgram_socket sendto;

allow useradd_t self:unix_stream_socket connectto;

allow useradd_t self:shm create_shm_perms;

allow useradd_t self:sem create_sem_perms;

allow useradd_t self:msgq create_msgq_perms;

allow useradd_t self:msg { send receive };

# Allow access to context for shadow file

selinux_get_fs_mount(useradd_t)

selinux_validate_context(useradd_t)

selinux_compute_access_vector(useradd_t)

selinux_compute_create_context(useradd_t)

selinux_compute_relabel_context(useradd_t)

selinux_compute_user_contexts(useradd_t)

# for getting the number of groups

kernel_read_kernel_sysctl(useradd_t)

fs_search_auto_mountpoints(useradd_t)

fs_getattr_xattr_fs(useradd_t)

term_use_all_user_ttys(useradd_t)

term_use_all_user_ptys(useradd_t)

auth_manage_shadow(useradd_t)

auth_rw_lastlog(useradd_t)

corecmd_exec_shell(useradd_t)

# Execute /usr/bin/{passwd,chfn,chsh} and /usr/sbin/{useradd,vipw}.

corecmd_exec_bin(useradd_t)

corecmd_exec_sbin(useradd_t)

domain_use_wide_inherit_fd(useradd_t)

files_manage_generic_etc_files(useradd_t)

init_use_fd(useradd_t)

init_rw_script_pid(useradd_t)

libs_use_ld_so(useradd_t)

libs_use_shared_libs(useradd_t)

logging_send_syslog_msg(useradd_t)

miscfiles_read_localization(useradd_t)

seutil_read_config(useradd_t)

userdom_use_unpriv_users_fd(useradd_t)

mta_manage_spool(useradd_t)

optional_policy(`nis.te',`

	nis_use_ypbind(useradd_t)

')

ifdef(`TODO',`

# Update /etc/shadow and /etc/passwd

allow useradd_t { etc_t shadow_t }:file { relabelfrom relabelto };

# Access terminals.

ifdef(`gnome-pty-helper.te', `allow useradd_t gphdomain:fd use;')

# for when /root is the cwd

dontaudit useradd_t sysadm_home_dir_t:dir search;

# Add/remove user home directories

file_type_auto_trans(useradd_t, home_root_t, user_home_dir_t, dir)

file_type_auto_trans(useradd_t, user_home_dir_t, user_home_t)

# /var/mail is a link to /var/spool/mail

allow useradd_t mail_spool_t:lnk_file read;

') dnl end TODO