## <summary>Common policy for authentication and user login.</summary>
#######################################
## <summary>
## The per user domain template for the authlogin module.
## </summary>
## <desc>
## <p>
## This template creates a derived domain which is allowed
## to authenticate users by using PAM unix_chkpwd support.
## This domain will be used by any programs running in the
## user domain which use PAM to authenticate.
## </p>
## <p>
## This template is invoked automatically for each user, and
## generally does not need to be invoked directly
## by policy writers.
## </p>
## </desc>
## <param name="userdomain_prefix">
## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </param>
## <param name="user_domain">
## The type of the user domain.
## </param>
## <param name="user_role">
## The role associated with the user domain.
## </param>
#
template(`authlogin_per_userdomain_template',`
gen_require(`
attribute can_read_shadow_passwords;
type chkpwd_exec_t, system_chkpwd_t, shadow_t;
')
type $1_chkpwd_t, can_read_shadow_passwords;
domain_type($1_chkpwd_t)
domain_entry_file($1_chkpwd_t,chkpwd_exec_t)
role $3 types $1_chkpwd_t;
role $3 types system_chkpwd_t;
allow $1_chkpwd_t self:capability { audit_write audit_control setuid };
allow $1_chkpwd_t self:process getattr;
files_list_etc($1_chkpwd_t)
allow $1_chkpwd_t shadow_t:file { getattr read };
allow $2 self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };
# Transition from the user domain to this domain.
domain_auto_trans($2,chkpwd_exec_t,$1_chkpwd_t)
allow $1_chkpwd_t $2:fd use;
allow $2 $1_chkpwd_t:fd use;
allow $1_chkpwd_t $2:fifo_file rw_file_perms;
allow $1_chkpwd_t $2:process sigchld;
dontaudit $2 shadow_t:file { getattr read };
# is_selinux_enabled
kernel_read_system_state($1_chkpwd_t)
dev_read_rand($1_chkpwd_t)
dev_read_urand($1_chkpwd_t)
fs_dontaudit_getattr_xattr_fs($1_chkpwd_t)
domain_use_wide_inherit_fd($1_chkpwd_t)
libs_use_ld_so($1_chkpwd_t)
libs_use_shared_libs($1_chkpwd_t)
files_read_etc_files($1_chkpwd_t)
# for nscd
files_dontaudit_search_var($1_chkpwd_t)
logging_send_syslog_msg($1_chkpwd_t)
miscfiles_read_certs($1_chkpwd_t)
miscfiles_read_localization($1_chkpwd_t)
seutil_read_config($1_chkpwd_t)
sysnet_dns_name_resolve($1_chkpwd_t)
sysnet_use_ldap($1_chkpwd_t)
# Write to the user domain tty.
userdom_use_user_terminals($1,$1_chkpwd_t)
# Inherit and use descriptors from gnome-pty-helper.
#ifdef(`gnome-pty-helper.te',`allow $1_chkpwd_t $1_gph_t:fd use;')
optional_policy(`kerberos.te',`
kerberos_use($1_chkpwd_t)
')
optional_policy(`nis.te',`
nis_use_ypbind($1_chkpwd_t)
')
optional_policy(`nscd.te',`
nscd_use_socket($1_chkpwd_t)
')
optional_policy(`selinuxutil.te',`
seutil_use_newrole_fd($1_chkpwd_t)
')
ifdef(`TODO',`
can_winbind($1)
')
')
########################################
## <summary>
## Run unix_chkpwd to check a password
## for a user domain.
## </summary>
## <desc>
## <p>
## Run unix_chkpwd to check a password
## for a user domain.
## </p>
## <p>
## This is a templated interface, and should only
## be called from a per-userdomain template.
## </p>
## </desc>
## <param name="userdomain_prefix">
## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </param>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
template(`auth_domtrans_user_chk_passwd',`
gen_require(`
type chkpwd_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
corecmd_search_bin($1)
domain_auto_trans($1,chkpwd_exec_t,$2_chkpwd_t)
allow $1 $2_chkpwd_t:fd use;
allow $2_chkpwd_t $1:fd use;
allow $2_chkpwd_t $1:fifo_file rw_file_perms;
allow $2_chkpwd_t $1:process sigchld;
')
########################################
## <summary>
## Use the login program as an entry point program.
## </summary>
## <param name="domain">
## The type of process using the login program as entry point.
## </param>
#
interface(`auth_login_entry_type',`
gen_require(`
type login_exec_t;
')
domain_entry_file($1,login_exec_t)
')
########################################
## <summary>
## Execute a login_program in the target domain.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
## <param name="target_domain">
## The type of the login_program process.
## </param>
#
interface(`auth_domtrans_login_program',`
gen_require(`
type login_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
corecmd_search_bin($1)
domain_auto_trans($1,login_exec_t,$2)
allow $1 $2:fd use;
allow $2 $1:fd use;
allow $2 $1:fifo_file rw_file_perms;
allow $2 $1:process sigchld;
')
########################################
## <summary>
## Run unix_chkpwd to check a password.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_domtrans_chk_passwd',`
gen_require(`
type system_chkpwd_t, chkpwd_exec_t, shadow_t;
class process sigchld;
class udp_socket create_socket_perms;
class fd use;
class fifo_file rw_file_perms;
')
corecmd_search_sbin($1)
domain_auto_trans($1,chkpwd_exec_t,system_chkpwd_t)
allow $1 self:capability { audit_write audit_control };
allow $1 self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };
allow $1 system_chkpwd_t:fd use;
allow system_chkpwd_t $1:fd use;
allow system_chkpwd_t $1:fifo_file rw_file_perms;
allow system_chkpwd_t $1:process sigchld;
dontaudit $1 shadow_t:file { getattr read };
dev_read_rand($1)
dev_read_urand($1)
miscfiles_read_certs($1)
sysnet_dns_name_resolve($1)
sysnet_use_ldap($1)
optional_policy(`kerberos.te',`
kerberos_use($1)
')
optional_policy(`nis.te',`
nis_use_ypbind($1)
')
ifdef(`TODO',`
can_winbind($1)
dontaudit $1 shadow_t:file { getattr read };
')
')
########################################
## <summary>
## Get the attributes of the shadow passwords file.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_getattr_shadow',`
gen_require(`
type shadow_t;
class file getattr;
')
files_search_etc($1)
allow $1 shadow_t:file getattr;
')
########################################
## <summary>
## Do not audit attempts to get the attributes
## of the shadow passwords file.
## </summary>
## <param name="domain">
## Domain to not audit.
## </param>
#
interface(`auth_dontaudit_getattr_shadow',`
gen_require(`
type shadow_t;
class file getattr;
')
dontaudit $1 shadow_t:file getattr;
')
########################################
## <summary>
## Read the shadow passwords file (/etc/shadow)
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_read_shadow',`
gen_require(`
attribute can_read_shadow_passwords;
type shadow_t;
class file r_file_perms;
')
files_list_etc($1)
allow $1 shadow_t:file r_file_perms;
typeattribute $1 can_read_shadow_passwords;
')
########################################
## <summary>
## Do not audit attempts to read the shadow
## password file (/etc/shadow).
## </summary>
## <param name="domain">
## The type of the domain to not audit.
## </param>
#
interface(`auth_dontaudit_read_shadow',`
gen_require(`
type shadow_t;
class file r_file_perms;
')
dontaudit $1 shadow_t:file { getattr read };
')
########################################
## <summary>
## Read and write the shadow password file (/etc/shadow).
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_rw_shadow',`
gen_require(`
attribute can_read_shadow_passwords, can_write_shadow_passwords;
type shadow_t;
class file rw_file_perms;
')
files_list_etc($1)
allow $1 shadow_t:file rw_file_perms;
typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
')
#######################################
#
# auth_manage_shadow(domain)
#
interface(`auth_manage_shadow',`
gen_require(`
attribute can_read_shadow_passwords, can_write_shadow_passwords;
type shadow_t;
class file create_file_perms;
')
allow $1 shadow_t:file create_file_perms;
files_create_etc_config($1,shadow_t,file)
typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
')
#######################################
#
# auth_relabelto_shadow(domain)
#
interface(`auth_relabelto_shadow',`
gen_require(`
attribute can_relabelto_shadow_passwords;
type shadow_t;
class file relabelto;
')
files_search_etc($1)
allow $1 shadow_t:file relabelto;
typeattribute $1 can_relabelto_shadow_passwords;
')
#######################################
## <summary>
## Append to the login failure log.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_append_faillog',`
gen_require(`
type faillog_t;
class file { getattr append };
')
logging_search_logs($1)
allow $1 faillog_t:file { getattr append };
')
#######################################
#
# auth_rw_faillog(domain)
#
interface(`auth_rw_faillog',`
gen_require(`
type faillog_t;
class file rw_file_perms;
')
logging_search_logs($1)
allow $1 faillog_t:file rw_file_perms;
')
#######################################
## <summary>
## Read the last logins log.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_read_lastlog',`
gen_require(`
type lastlog_t;
')
logging_search_logs($1)
allow $1 lastlog_t:file { getattr read };
')
#######################################
## <summary>
## Append only to the last logins log.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_append_lastlog',`
gen_require(`
type lastlog_t;
')
logging_search_logs($1)
allow $1 lastlog_t:file { getattr lock append };
')
#######################################
## <summary>
## Read and write to the last logins log.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_rw_lastlog',`
gen_require(`
type lastlog_t;
')
logging_search_logs($1)
allow $1 lastlog_t:file { getattr read write setattr };
')
########################################
## <summary>
## Execute pam programs in the pam domain.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_domtrans_pam',`
gen_require(`
type pam_t, pam_exec_t;
')
domain_auto_trans($1,pam_exec_t,pam_t)
allow $1 pam_t:fd use;
allow pam_t $1:fd use;
allow pam_t $1:fifo_file rw_file_perms;
allow pam_t $1:process sigchld;
')
########################################
## <summary>
## Execute pam programs in the PAM domain.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
## <param name="role">
## The role to allow the PAM domain.
## </param>
## <param name="terminal">
## The type of the terminal allow the PAM domain to use.
## </param>
#
interface(`auth_run_pam',`
gen_require(`
type pam_t;
class chr_file rw_file_perms;
')
auth_domtrans_pam($1)
role $2 types pam_t;
allow pam_t $3:chr_file rw_file_perms;
')
########################################
## <summary>
## Execute the pam program.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_exec_pam',`
gen_require(`
type pam_exec_t;
')
can_exec($1,pam_exec_t)
')
#######################################
#
# auth_read_pam_pid(domain)
#
interface(`auth_read_pam_pid',`
gen_require(`
type pam_var_run_t;
class dir r_dir_perms;
class file r_file_perms;
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_run_t:dir r_dir_perms;
allow $1 pam_var_run_t:file r_file_perms;
')
########################################
## <summary>
## Delete pam PID files.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_delete_pam_pid',`
gen_require(`
type pam_var_run_t;
class dir { getattr search read write remove_name };
class file { getattr unlink };
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_run_t:dir { getattr search read write remove_name };
allow $1 pam_var_run_t:file { getattr unlink };
')
#######################################
#
# auth_domtrans_pam_console(domain)
#
interface(`auth_domtrans_pam_console',`
gen_require(`
type pam_console_t, pam_console_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
domain_auto_trans($1,pam_console_exec_t,pam_console_t)
allow $1 pam_console_t:fd use;
allow pam_console_t $1:fd use;
allow pam_console_t $1:fifo_file rw_file_perms;
allow pam_console_t $1:process sigchld;
')
#######################################
#
# auth_list_pam_console_data(domain)
#
interface(`auth_list_pam_console_data',`
gen_require(`
type pam_var_console_t;
class dir r_dir_perms;
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_console_t:dir r_dir_perms;
')
#######################################
#
# auth_read_pam_console_data(domain)
#
interface(`auth_read_pam_console_data',`
gen_require(`
type pam_var_console_t;
class dir r_dir_perms;
class file r_file_perms;
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_console_t:dir r_dir_perms;
allow $1 pam_var_console_t:file r_file_perms;
')
#######################################
#
# auth_manage_pam_console_data(domain)
#
interface(`auth_manage_pam_console_data',`
gen_require(`
type pam_var_console_t;
class dir rw_dir_perms;
class file create_file_perms;
class lnk_file create_lnk_perms;
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_console_t:dir rw_dir_perms;
allow $1 pam_var_console_t:file create_file_perms;
allow $1 pam_var_console_t:lnk_file create_lnk_perms;
')
#######################################
## <summary>
## Delete pam_console data.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_delete_pam_console_data',`
gen_require(`
type pam_var_console_t;
')
files_search_var($1)
files_search_pids($1)
allow $1 pam_var_console_t:dir rw_dir_perms;
allow $1 pam_var_console_t:file unlink;
')
########################################
## <summary>
## Relabel all files on the filesystem, except
## the shadow passwords and listed exceptions.
## </summary>
## <param name="domain">
## The type of the domain perfoming this action.
## </param>
## <param name="exception_types" optional="true">
## The types to be excluded. Each type or attribute
## must be negated by the caller.
## </param>
#
interface(`auth_relabel_all_files_except_shadow',`
gen_require(`
type shadow_t;
')
files_relabel_all_files($1,$2 -shadow_t)
')
########################################
## <summary>
## Manage all files on the filesystem, except
## the shadow passwords and listed exceptions.
## </summary>
## <param name="domain">
## The type of the domain perfoming this action.
## </param>
## <param name="exception_types" optional="true">
## The types to be excluded. Each type or attribute
## must be negated by the caller.
## </param>
#
interface(`auth_manage_all_files_except_shadow',`
gen_require(`
type shadow_t;
')
files_manage_all_files($1,$2 -shadow_t)
')
########################################
## <summary>
## Execute utempter programs in the utempter domain.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`auth_domtrans_utempter',`
gen_require(`
type utempter_t, utempter_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
domain_auto_trans($1,utempter_exec_t,utempter_t)
allow $1 utempter_t:fd use;
allow utempter_t $1:fd use;
allow utempter_t $1:fifo_file rw_file_perms;
allow utempter_t $1:process sigchld;
')
########################################
## <summary>
## Execute utempter programs in the utempter domain.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
## <param name="role">
## The role to allow the utempter domain.
## </param>
## <param name="terminal">
## The type of the terminal allow the utempter domain to use.
## </param>
#
interface(`auth_run_utempter',`
gen_require(`
type utempter_t;
class chr_file rw_file_perms;
')
auth_domtrans_utempter($1)
role $2 types utempter_t;
allow utempter_t $3:chr_file rw_file_perms;
')
#######################################
#
# auth_read_login_records(domain)
#
interface(`auth_read_login_records',`
gen_require(`
type wtmp_t;
class file r_file_perms;
')
logging_search_logs($1)
allow $1 wtmp_t:file r_file_perms;
')
#######################################
#
# auth_dontaudit_write_login_records(domain)
#
interface(`auth_dontaudit_write_login_records',`
gen_require(`
type wtmp_t;
class file write;
')
dontaudit $1 wtmp_t:file write;
')
#######################################
## <summary>
## Append to login records (wtmp).
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_append_login_records',`
gen_require(`
type wtmp_t;
')
allow $1 wtmp_t:file { getattr append };
')
#######################################
## <summary>
## Write to login records (wtmp).
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_write_login_records',`
gen_require(`
type wtmp_t;
')
allow $1 wtmp_t:file { write lock };
')
#######################################
#
# auth_rw_login_records(domain)
#
interface(`auth_rw_login_records',`
gen_require(`
type wtmp_t;
class file rw_file_perms;
')
allow $1 wtmp_t:file rw_file_perms;
logging_search_logs($1)
')
#######################################
#
# auth_create_login_records(domain)
#
interface(`auth_create_login_records',`
gen_require(`
type wtmp_t;
')
logging_create_log($1,wtmp_t,file)
')
#######################################
#
# auth_manage_login_records(domain)
#
interface(`auth_manage_login_records',`
gen_require(`
type wtmp_t;
class file create_file_perms;
')
logging_rw_log_dir($1)
allow $1 wtmp_t:file create_file_perms;
')
########################################
## <summary>
## Use nsswitch to look up uid-username mappings.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_use_nsswitch',`
sysnet_dns_name_resolve($1)
sysnet_use_ldap($1)
optional_policy(`nis.te',`
nis_use_ypbind($1)
')
ifdef(`TODO',`
can_winbind($1)
')
')
########################################
## <summary>
## Unconfined access to the authlogin module.
## </summary>
## <desc>
## <p>
## Unconfined access to the authlogin module.
## </p>
## <p>
## Currently, this only allows assertions for
## the shadow passwords file (/etc/shadow) to
## be passed. No access is granted yet.
## </p>
## </desc>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`auth_unconfined',`
gen_require(`
attribute can_read_shadow_passwords;
attribute can_write_shadow_passwords;
attribute can_relabelto_shadow_passwords;
')
typeattribute $1 can_read_shadow_passwords;
typeattribute $1 can_write_shadow_passwords;
typeattribute $1 can_relabelto_shadow_passwords;
')