selinux-policy/refpolicy/policy/modules/system/authlogin.if

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## <summary>Common policy for authentication and user login.</summary>
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#######################################
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## <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>
#
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template(`authlogin_per_userdomain_template',`
gen_require(`
attribute can_read_shadow_passwords;
type chkpwd_exec_t, system_chkpwd_t, shadow_t;
class file rx_file_perms;
class process { getattr transition sigchld };
class capability setuid;
class unix_stream_socket { create read getattr write setattr append bind connect getopt setopt shutdown };
class unix_dgram_socket { create read getattr write setattr append bind connect getopt setopt shutdown };
class fd use;
class fifo_file rw_file_perms;
')
type $1_chkpwd_t, can_read_shadow_passwords; # , nscd_client_domain;
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domain_type($1_chkpwd_t)
domain_entry_file($1_chkpwd_t,chkpwd_exec_t)
role $1_r types $1_chkpwd_t;
role $1_r types system_chkpwd_t;
allow $1_chkpwd_t self:capability setuid;
allow $1_chkpwd_t self:process getattr;
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files_list_etc($1_chkpwd_t)
allow $1_chkpwd_t shadow_t:file { getattr read };
# is_selinux_enabled
kernel_read_system_state($1_chkpwd_t)
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fs_dontaudit_getattr_xattr_fs($1_chkpwd_t)
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domain_use_wide_inherit_fd($1_chkpwd_t)
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libs_use_ld_so($1_chkpwd_t)
libs_use_shared_libs($1_chkpwd_t)
files_read_etc_files($1_chkpwd_t)
# for nscd
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files_dontaudit_search_var($1_chkpwd_t)
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logging_send_syslog_msg($1_chkpwd_t)
miscfiles_read_localization($1_chkpwd_t)
seutil_read_config($1_chkpwd_t)
#can_ldap($1_chkpwd_t)
# Transition from the user domain to this domain.
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domain_auto_trans($1_t,chkpwd_exec_t,$1_chkpwd_t)
allow $1_chkpwd_t $1_t:fd use;
allow $1_t $1_chkpwd_t:fd use;
allow $1_chkpwd_t $1_t:fifo_file rw_file_perms;
allow $1_chkpwd_t $1_t:process sigchld;
# Write to the user domain tty.
#userdomain_use_$1_terminal($1_chkpwd_t)
#userdomain_use_$1_pty($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;')
tunable_policy(`use_dns',`
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allow $1_chkpwd_t self:udp_socket create_socket_perms;
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corenet_udp_sendrecv_all_if($1_chkpwd_t)
corenet_raw_sendrecv_all_if($1_chkpwd_t)
corenet_udp_sendrecv_all_nodes($1_chkpwd_t)
corenet_raw_sendrecv_all_nodes($1_chkpwd_t)
corenet_udp_bind_all_nodes($1_chkpwd_t)
corenet_udp_sendrecv_dns_port($1_chkpwd_t)
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sysnet_read_config($1_chkpwd_t)
')
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optional_policy(`kerberos.te',`
kerberos_use($1_chkpwd_t)
')
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optional_policy(`nis.te',`
nis_use_ypbind($1_chkpwd_t)
')
optional_policy(`selinux.te',`
seutil_use_newrole_fd($1_chkpwd_t)
')
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')
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########################################
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## <desc>
## Use the login program as an entry point program.
## </desc>
## <param name="domain">
## The type of process using the login program as entry point.
## </param>
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#
interface(`auth_login_entry_type',`
gen_require(`
type login_exec_t;
')
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domain_entry_file($1,login_exec_t)
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')
########################################
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## <desc>
## Execute a login_program in the target domain.
## </desc>
## <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;
')
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########################################
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## <desc>
## Run unix_chkpwd to check a password.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
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)
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domain_auto_trans($1,chkpwd_exec_t,system_chkpwd_t)
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 };
tunable_policy(`use_dns',`
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allow $1 self:udp_socket create_socket_perms;
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corenet_udp_sendrecv_all_if($1)
corenet_raw_sendrecv_all_if($1)
corenet_udp_sendrecv_all_nodes($1)
corenet_raw_sendrecv_all_nodes($1)
corenet_udp_bind_all_nodes($1)
corenet_udp_sendrecv_dns_port($1)
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sysnet_read_config($1)
')
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optional_policy(`kerberos.te',`
kerberos_use($1)
')
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#can_ldap($1)
optional_policy(`nis.te',`
nis_use_ypbind($1)
')
')
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########################################
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## <desc>
##
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_dontaudit_getattr_shadow',`
gen_require(`
type shadow_t;
class file stat_file_perms;
')
dontaudit $1 shadow_t:file getattr;
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')
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########################################
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## <desc>
## Read the shadow passwords file (/etc/shadow)
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_read_shadow',`
gen_require(`
attribute can_read_shadow_passwords;
type shadow_t;
class file r_file_perms;
')
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files_list_etc($1)
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allow $1 shadow_t:file r_file_perms;
typeattribute $1 can_read_shadow_passwords;
')
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########################################
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## <desc>
## Do not audit attempts to read the shadow
## password file (/etc/shadow).
## </desc>
## <param name="domain">
## The type of the domain to not audit.
## </param>
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#
interface(`auth_dontaudit_read_shadow',`
gen_require(`
type shadow_t;
class file r_file_perms;
')
dontaudit $1 shadow_t:file { getattr read };
')
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########################################
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## <desc>
## Read and write the shadow password file (/etc/shadow).
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_rw_shadow',`
gen_require(`
attribute can_read_shadow_passwords, can_write_shadow_passwords;
type shadow_t;
class file rw_file_perms;
')
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files_list_etc($1)
allow $1 shadow_t:file rw_file_perms;
typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
')
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#######################################
#
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# auth_manage_shadow(domain)
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#
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;
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files_create_etc_config($1,shadow_t,file)
typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
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')
#######################################
#
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# auth_relabelto_shadow(domain)
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#
interface(`auth_relabelto_shadow',`
gen_require(`
attribute can_relabelto_shadow_passwords;
type shadow_t;
class file relabelto;
')
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files_search_etc($1)
allow $1 shadow_t:file relabelto;
typeattribute $1 can_relabelto_shadow_passwords;
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')
#######################################
#
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# auth_rw_faillog(domain)
#
interface(`auth_rw_faillog',`
gen_require(`
type faillog_t;
class file rw_file_perms;
')
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logging_search_logs($1)
allow $1 faillog_t:file rw_file_perms;
')
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#######################################
#
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# auth_rw_lastlog(domain)
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#
interface(`auth_rw_lastlog',`
gen_require(`
type lastlog_t;
class file { getattr read write setattr };
')
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logging_search_logs($1)
allow $1 lastlog_t:file { getattr read write setattr };
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')
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########################################
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## <desc>
## Execute pam programs in the pam domain.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_domtrans_pam',`
gen_require(`
type pam_t, pam_exec_t;
class process sigchld;
class fd
class fifo_file rw_file_perms;
')
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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;
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')
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########################################
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## <desc>
## Execute pam programs in the PAM domain.
## </desc>
## <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>
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#
interface(`auth_run_pam',`
gen_require(`
type pam_t;
class chr_file rw_file_perms;
')
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auth_domtrans_pam($1)
role $2 types pam_t;
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allow pam_t $3:chr_file rw_file_perms;
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')
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########################################
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## <desc>
## Execute the pam program.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_exec_pam',`
gen_require(`
type pam_exec_t;
')
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can_exec($1,pam_exec_t)
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')
#######################################
#
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# 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;
')
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files_search_var($1)
files_search_pids($1)
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allow $1 pam_var_run_t:dir r_dir_perms;
allow $1 pam_var_run_t:file r_file_perms;
')
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########################################
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## <desc>
## Delete pam PID files.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_delete_pam_pid',`
gen_require(`
type pam_var_run_t;
class dir { getattr search read write remove_name };
class file { getattr unlink };
')
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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 };
')
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#######################################
#
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# auth_domtrans_pam_console(domain)
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#
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;
')
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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;
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')
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#######################################
#
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# auth_list_pam_console_data(domain)
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#
interface(`auth_list_pam_console_data',`
gen_require(`
type pam_var_console_t;
class dir r_dir_perms;
')
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files_search_var($1)
files_search_pids($1)
allow $1 pam_var_console_t:dir r_dir_perms;
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')
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#######################################
#
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# auth_read_pam_console_data(domain)
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#
interface(`auth_read_pam_console_data',`
gen_require(`
type pam_var_console_t;
class dir r_dir_perms;
class file r_file_perms;
')
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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;
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')
#######################################
#
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# auth_manage_pam_console_data(domain)
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#
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;
')
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files_search_var($1)
files_search_pids($1)
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allow $1 pam_var_console_t:dir rw_dir_perms;
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allow $1 pam_var_console_t:file create_file_perms;
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allow $1 pam_var_console_t:lnk_file create_lnk_perms;
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')
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########################################
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## <desc>
## Relabel all files on the filesystem, except
## the shadow passwords and listed exceptions.
## </desc>
## <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>
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#
interface(`auth_relabel_all_files_except_shadow',`
gen_require(`
type shadow_t;
')
files_relabel_all_files($1,$2 -shadow_t)
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')
########################################
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## <desc>
## Manage all files on the filesystem, except
## the shadow passwords and listed exceptions.
## </desc>
## <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>
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#
interface(`auth_manage_all_files_except_shadow',`
gen_require(`
type shadow_t;
')
files_manage_all_files($1,$2 -shadow_t)
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')
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########################################
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## <desc>
## Execute utempter programs in the utempter domain.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
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#
interface(`auth_domtrans_utempter',`
gen_require(`
type utempter_t, utempter_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
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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;
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')
########################################
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## <desc>
## Execute utempter programs in the utempter domain.
## </desc>
## <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>
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#
interface(`auth_run_utempter',`
gen_require(`
type utempter_t;
class chr_file rw_file_perms;
')
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auth_domtrans_utempter($1)
role $2 types utempter_t;
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allow utempter_t $3:chr_file rw_file_perms;
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')
#######################################
#
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# auth_read_login_records(domain)
#
interface(`auth_read_login_records',`
gen_require(`
type wtmp_t;
class file r_file_perms;
')
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logging_search_logs($1)
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allow $1 wtmp_t:file r_file_perms;
')
#######################################
#
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# 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;
')
#######################################
#
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# auth_rw_login_records(domain)
#
interface(`auth_rw_login_records',`
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gen_require(`
type wtmp_t;
class file rw_file_perms;
')
allow $1 wtmp_t:file rw_file_perms;
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logging_search_logs($1)
')
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#######################################
#
# 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;
')