File: //usr/share/selinux/devel/include/services/cron.if
## <summary>Periodic execution of scheduled commands.</summary>
#######################################
## <summary>
## The template to define a crontab domain.
## </summary>
## <param name="domain_prefix">
## <summary>
## Domain prefix to be used.
## </summary>
## </param>
#
template(`cron_common_crontab_template',`
gen_require(`
attribute crontab_domain;
type crontab_exec_t;
')
##############################
#
# Declarations
#
type $1_crontab_t, crontab_domain;
userdom_user_application_domain($1_crontab_t, crontab_exec_t)
type $1_crontab_tmp_t;
userdom_user_tmp_file($1_crontab_tmp_t)
type $1_cron_spool_t, cron_spool_type;
##############################
#
# Local policy
#
manage_dirs_pattern($1_crontab_t, $1_crontab_tmp_t, $1_crontab_tmp_t)
manage_files_pattern($1_crontab_t, $1_crontab_tmp_t, $1_crontab_tmp_t)
files_tmp_filetrans($1_crontab_t, $1_crontab_tmp_t, { dir file })
auth_domtrans_chk_passwd($1_crontab_t)
auth_use_nsswitch($1_crontab_t)
allow $1_crontab_t self:capability fsetid;
files_type($1_cron_spool_t)
ubac_constrained($1_cron_spool_t)
mta_system_content($1_cron_spool_t)
manage_files_pattern($1_crontab_t, { cron_spool_t $1_cron_spool_t }, $1_cron_spool_t)
filetrans_pattern($1_crontab_t, cron_spool_t, $1_cron_spool_t, file)
')
########################################
## <summary>
## Role access for cron.
## </summary>
## <param name="role">
## <summary>
## Role allowed access.
## </summary>
## </param>
## <param name="domain">
## <summary>
## stem of domain for the role.
## </summary>
## </param>
## <rolecap/>
#
interface(`cron_role',`
gen_require(`
ifdef(`cronjob_domain', `
type cronjob_t;
')
type crontab_exec_t, crond_t;
type $2_crontab_t, $2_cron_spool_t, crond_tmp_t;
bool cron_userdomain_transition;
')
##############################
#
# Declarations
#
ifdef(`cronjob_domain', `
role $1 types { cronjob_t };
')
role $1 types { $2_crontab_t };
##############################
#
# Local policy
#
domtrans_pattern($2_t, crontab_exec_t, $2_crontab_t)
dontaudit crond_t $2_t:process { noatsecure rlimitinh siginh };
allow $2_t crond_t:process sigchld;
allow $2_t $2_cron_spool_t:file rw_inherited_file_perms;
allow $2_t $2_crontab_t:process { ptrace signal_perms };
ps_process_pattern($2_t, $2_crontab_t)
corecmd_exec_bin($2_crontab_t)
corecmd_exec_shell($2_crontab_t)
ifndef(`cronjob_domain', `
allow crond_t $2_t:process transition;
allow crond_t $2_t:fd use;
allow crond_t $2_t:key manage_key_perms;
allow $2_t $2_cron_spool_t:file entrypoint;
allow $2_t crond_tmp_t:file rw_inherited_file_perms;
allow $2_t crond_t:fifo_file rw_fifo_file_perms;
')
tunable_policy(`cron_userdomain_transition',`
allow crond_t $2_t:process transition;
allow crond_t $2_t:fd use;
allow crond_t $2_t:key manage_key_perms;
allow $2_t $2_cron_spool_t:file entrypoint;
',`
dontaudit crond_t $2_t:process transition;
dontaudit crond_t $2_t:fd use;
dontaudit crond_t $2_t:key manage_key_perms;
dontaudit $2_t $2_cron_spool_t:file entrypoint;
dontaudit $2_t crond_t:fifo_file rw_fifo_file_perms;
')
')
########################################
## <summary>
## Role access for unconfined cron.
## Only used if cronjob_domain is set
## </summary>
## <param name="role">
## <summary>
## Role allowed access.
## </summary>
## </param>
## <param name="domain">
## <summary>
## User domain for the role.
## </summary>
## </param>
#
interface(`cron_unconfined_role',`
gen_require(`
type unconfined_cronjob_t, crontab_t, crontab_exec_t;
type crond_t, user_cron_spool_t;
bool cron_userdomain_transition;
')
##############################
#
# Declarations
#
role $1 types { unconfined_cronjob_t crontab_t };
##############################
#
# Local policy
#
domtrans_pattern($2, crontab_exec_t, crontab_t)
dontaudit crond_t $2:process { noatsecure siginh rlimitinh };
allow $2 crond_t:process sigchld;
allow $2 user_cron_spool_t:file rw_inherited_file_perms;
allow $2 crontab_t:process { ptrace signal_perms };
ps_process_pattern($2, crontab_t)
corecmd_exec_bin(crontab_t)
corecmd_exec_shell(crontab_t)
tunable_policy(`cron_userdomain_transition',`
allow crond_t $2:process transition;
allow crond_t $2:fd use;
allow crond_t $2:key manage_key_perms;
allow $2 user_cron_spool_t:file entrypoint;
allow $2 crond_t:fifo_file rw_fifo_file_perms;
allow $2 unconfined_cronjob_t:process { ptrace signal_perms };
ps_process_pattern($2, unconfined_cronjob_t)
',`
dontaudit crond_t $2:process transition;
dontaudit crond_t $2:fd use;
dontaudit crond_t $2:key manage_key_perms;
dontaudit $2 user_cron_spool_t:file entrypoint;
dontaudit $2 crond_t:fifo_file rw_fifo_file_perms;
dontaudit $2 unconfined_cronjob_t:process { ptrace signal_perms };
')
optional_policy(`
gen_require(`
class dbus send_msg;
')
dbus_stub(unconfined_cronjob_t)
allow unconfined_cronjob_t $2:dbus send_msg;
')
')
########################################
## <summary>
## Role access for admin cron.
## </summary>
## <param name="role">
## <summary>
## Role allowed access.
## </summary>
## </param>
## <param name="domain">
## <summary>
## User domain for the role.
## </summary>
## </param>
#
interface(`cron_admin_role',`
gen_require(`
type cronjob_t, crontab_exec_t, admin_crontab_t;
class passwd crontab;
type crond_t, crond_runtime_t, user_cron_spool_t;
bool cron_userdomain_transition, fcron_crond;
')
##############################
#
# Declarations
#
role $1 types { cronjob_t admin_crontab_t };
##############################
#
# Local policy
#
domtrans_pattern($2, crontab_exec_t, admin_crontab_t)
dontaudit crond_t $2:process { noatsecure siginh rlimitinh };
allow $2 crond_t:process sigchld;
allow $2 user_cron_spool_t:file rw_inherited_file_perms;
allow $2 admin_crontab_t:process { ptrace signal_perms };
ps_process_pattern($2, admin_crontab_t)
# Manipulate other users crontab.
allow $2 self:passwd crontab;
corecmd_exec_bin(admin_crontab_t)
corecmd_exec_shell(admin_crontab_t)
tunable_policy(`cron_userdomain_transition',`
allow crond_t $2:process transition;
allow crond_t $2:fd use;
allow crond_t $2:key manage_key_perms;
allow $2 user_cron_spool_t:file entrypoint;
allow $2 crond_t:fifo_file rw_fifo_file_perms;
allow $2 cronjob_t:process { ptrace signal_perms };
ps_process_pattern($2, cronjob_t)
',`
dontaudit crond_t $2:process transition;
dontaudit crond_t $2:fd use;
dontaudit crond_t $2:key manage_key_perms;
dontaudit $2 user_cron_spool_t:file entrypoint;
dontaudit $2 crond_t:fifo_file rw_fifo_file_perms;
dontaudit $2 cronjob_t:process { ptrace signal_perms };
')
tunable_policy(`fcron_crond',`
# Support for fcrondyn
stream_connect_pattern($2, crond_runtime_t, crond_runtime_t, crond_t)
')
optional_policy(`
gen_require(`
class dbus send_msg;
')
dbus_stub(admin_cronjob_t)
allow cronjob_t $2:dbus send_msg;
')
')
########################################
## <summary>
## Make the specified program domain
## accessible from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## The type of the process to transition to.
## </summary>
## </param>
## <param name="entrypoint">
## <summary>
## The type of the file used as an entrypoint to this domain.
## </summary>
## </param>
#
interface(`cron_system_entry',`
gen_require(`
type crond_t, system_cronjob_t;
')
domtrans_pattern(system_cronjob_t, $2, $1)
domtrans_pattern(crond_t, $2, $1)
role system_r types $1;
')
########################################
## <summary>
## Execute cron in the cron system domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
#
interface(`cron_domtrans',`
gen_require(`
type system_cronjob_t, crond_exec_t;
')
corecmd_search_bin($1)
domtrans_pattern($1, crond_exec_t, system_cronjob_t)
')
########################################
## <summary>
## Execute crond in the caller domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_exec',`
gen_require(`
type crond_exec_t;
')
corecmd_search_bin($1)
can_exec($1, crond_exec_t)
')
########################################
## <summary>
## Execute crond server in the crond domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
#
interface(`cron_initrc_domtrans',`
gen_require(`
type crond_initrc_exec_t;
')
init_labeled_script_domtrans($1, crond_initrc_exec_t)
')
########################################
## <summary>
## Use crond file descriptors.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_use_fds',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fd use;
')
########################################
## <summary>
## Send child terminated signals to crond.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_sigchld',`
gen_require(`
type crond_t;
')
allow $1 crond_t:process sigchld;
')
########################################
## <summary>
## Set the attributes of cron log files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_setattr_log_files',`
gen_require(`
type cron_log_t;
')
allow $1 cron_log_t:file setattr_file_perms;
')
########################################
## <summary>
## Create cron log files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_create_log_files',`
gen_require(`
type cron_log_t;
')
create_files_pattern($1, cron_log_t, cron_log_t)
')
########################################
## <summary>
## Write to cron log files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_write_log_files',`
gen_require(`
type cron_log_t;
')
allow $1 cron_log_t:file write_file_perms;
')
########################################
## <summary>
## Create, read, write and delete
## cron log files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_manage_log_files',`
gen_require(`
type cron_log_t;
')
manage_files_pattern($1, cron_log_t, cron_log_t)
logging_search_logs($1)
')
########################################
## <summary>
## Create specified objects in generic
## log directories with the cron log file type.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
## <param name="object_class">
## <summary>
## Class of the object being created.
## </summary>
## </param>
## <param name="name" optional="true">
## <summary>
## The name of the object being created.
## </summary>
## </param>
#
interface(`cron_generic_log_filetrans_log',`
gen_require(`
type cron_log_t;
')
logging_log_filetrans($1, cron_log_t, $2, $3)
')
########################################
## <summary>
## Read cron daemon unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_pipes',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fifo_file read_fifo_file_perms;
')
########################################
## <summary>
## Do not audit attempts to write
## cron daemon unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_write_pipes',`
gen_require(`
type crond_t;
')
dontaudit $1 crond_t:fifo_file write;
')
########################################
## <summary>
## Read and write crond unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_pipes',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fifo_file rw_fifo_file_perms;
')
########################################
## <summary>
## Read and write crond TCP sockets.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_tcp_sockets',`
gen_require(`
type crond_t;
')
allow $1 crond_t:tcp_socket { read write };
')
########################################
## <summary>
## Do not audit attempts to read and
## write cron daemon TCP sockets.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_rw_tcp_sockets',`
gen_require(`
type crond_t;
')
dontaudit $1 crond_t:tcp_socket { read write };
')
########################################
## <summary>
## Search cron spool directories.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_search_spool',`
gen_require(`
type cron_spool_t;
')
files_search_spool($1)
allow $1 cron_spool_t:dir search_dir_perms;
')
########################################
## <summary>
## Create, read, write, and delete
## crond pid files. (Deprecated)
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_manage_pid_files',`
refpolicywarn(`$0($*) has been deprecated.')
')
########################################
## <summary>
## Execute anacron in the cron
## system domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
#
interface(`cron_anacron_domtrans_system_job',`
gen_require(`
type system_cronjob_t, anacron_exec_t;
')
corecmd_search_bin($1)
domtrans_pattern($1, anacron_exec_t, system_cronjob_t)
')
########################################
## <summary>
## Use system cron job file descriptors.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_use_system_job_fds',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:fd use;
')
########################################
## <summary>
## Create, read, write, and delete the system spool.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_manage_system_spool',`
gen_require(`
type system_cron_spool_t;
')
files_search_spool($1)
manage_files_pattern($1, system_cron_spool_t, system_cron_spool_t)
')
########################################
## <summary>
## Read the system spool.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_system_spool',`
gen_require(`
type system_cron_spool_t;
')
cron_search_spool($1)
list_dirs_pattern($1, system_cron_spool_t, system_cron_spool_t)
read_files_pattern($1, system_cron_spool_t, system_cron_spool_t)
')
########################################
## <summary>
## Read and write crond temporary files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_tmp_files',`
gen_require(`
type crond_tmp_t;
')
allow $1 crond_tmp_t:file rw_file_perms;
')
########################################
## <summary>
## Read and write inherited crond temporary files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_inherited_tmp_files',`
gen_require(`
type crond_tmp_t;
')
allow $1 crond_tmp_t:file rw_inherited_file_perms;
')
########################################
## <summary>
## Read system cron job lib files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_system_job_lib_files',`
gen_require(`
type system_cronjob_var_lib_t;
')
files_search_var_lib($1)
read_files_pattern($1, system_cronjob_var_lib_t, system_cronjob_var_lib_t)
')
########################################
## <summary>
## Create, read, write, and delete
## system cron job lib files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_manage_system_job_lib_files',`
gen_require(`
type system_cronjob_var_lib_t;
')
files_search_var_lib($1)
manage_files_pattern($1, system_cronjob_var_lib_t, system_cronjob_var_lib_t)
')
########################################
## <summary>
## Write system cron job unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_write_system_job_pipes',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:file write;
')
########################################
## <summary>
## Read and write system cron job
## unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_system_job_pipes',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:fifo_file rw_fifo_file_perms;
')
########################################
## <summary>
## Read and write inherited system cron
## job unix domain stream sockets.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_system_job_stream_sockets',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:unix_stream_socket { read write };
')
########################################
## <summary>
## Read system cron job temporary files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
files_search_tmp($1)
allow $1 system_cronjob_tmp_t:dir search_dir_perms;
allow $1 system_cronjob_tmp_t:file read_file_perms;
')
########################################
## <summary>
## Read/write system cron job temporary files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
files_search_tmp($1)
allow $1 system_cronjob_tmp_t:dir search_dir_perms;
allow $1 system_cronjob_tmp_t:file rw_file_perms;
')
########################################
## <summary>
## Do not audit attempts to append temporary
## system cron job files.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_append_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
dontaudit $1 system_cronjob_tmp_t:file append_file_perms;
')
########################################
## <summary>
## allow appending temporary system cron job files.
## </summary>
## <param name="domain">
## <summary>
## Domain to allow.
## </summary>
## </param>
#
interface(`cron_append_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
allow $1 system_cronjob_tmp_t:file append_file_perms;
')
########################################
## <summary>
## Read and write to inherited system cron job temporary files.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_inherited_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
allow $1 system_cronjob_tmp_t:file rw_inherited_file_perms;
')
########################################
## <summary>
## Do not audit attempts to write temporary
## system cron job files.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_write_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
dontaudit $1 system_cronjob_tmp_t:file write_file_perms;
')
########################################
## <summary>
## Execute crontab in the caller domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
## <rolecap/>
#
interface(`cron_exec_crontab',`
gen_require(`
type crontab_exec_t;
')
corecmd_search_bin($1)
can_exec($1, crontab_exec_t)
')
########################################
## <summary>
## All of the rules required to
## administrate a cron environment.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
## <param name="role">
## <summary>
## Role allowed access.
## </summary>
## </param>
## <rolecap/>
#
interface(`cron_admin',`
gen_require(`
type crond_t, cronjob_t, crond_initrc_exec_t;
type cron_var_lib_t, system_cronjob_var_lib_t;
type crond_tmp_t, admin_crontab_tmp_t;
type crontab_tmp_t, system_cronjob_tmp_t;
type cron_runtime_t, system_cronjob_runtime_t, crond_runtime_t;
type cron_log_t, system_cronjob_lock_t;
attribute cron_spool_type;
')
allow $1 { crond_t cronjob_t }:process { ptrace signal_perms };
ps_process_pattern($1, { crond_t cronjob_t })
init_startstop_service($1, $2, crond_t, crond_initrc_exec_t)
files_search_var_lib($1)
admin_pattern($1, { cron_var_lib_t system_cronjob_var_lib_t })
files_search_tmp($1)
admin_pattern($1, { crond_tmp_t admin_crontab_tmp_t })
admin_pattern($1, { crontab_tmp_t system_cronjob_tmp_t })
files_search_runtime($1)
admin_pattern($1, { cron_runtime_t crond_runtime_t system_cronjob_runtime_t })
files_search_locks($1)
admin_pattern($1, system_cronjob_lock_t)
logging_search_logs($1)
admin_pattern($1, { cron_log_t })
files_search_spool($1)
admin_pattern($1, cron_spool_type)
')