## <summary>Policy for the kernel message logger and system logging daemon.</summary>

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

## <summary>

##	Make the specified type usable for log files

##	in a filesystem.

## </summary>

## <desc>

##	

##	Make the specified type usable for log files in a filesystem.

##	This will also make the type usable for files, making 

##	calls to files_type() redundant.  Failure to use this interface

##	for a log file type may result in problems with log

##	rotation, log analysis, and log monitoring programs.

##	

##	

##	Related interfaces:

##	

##	

##		
logging_log_filetrans()

##	

##	

##	Example usage with a domain that can create

##	and append to a private log file stored in the

##	general directories (e.g., /var/log):

##	

##	

##	type mylogfile_t;

##	logging_log_file(mylogfile_t)

##	allow mydomain_t mylogfile_t:file { create_file_perms append_file_perms };

##	logging_log_filetrans(mydomain_t, mylogfile_t, file)

##	

## </desc>

## <param name="type">

##	<summary>

##	Type to be used for files.

##	</summary>

## </param>

## <infoflow type="none"/>

#

interface(`logging_log_file',`

	gen_require(`

		attribute logfile;

	')

	files_type($1)

	files_associate_tmp($1)

	fs_associate_tmpfs($1)

	typeattribute $1 logfile;

')

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

## <summary>

##	Send audit messages.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_send_audit_msgs',`

	allow $1 self:capability audit_write;

	allow $1 self:netlink_audit_socket { r_netlink_socket_perms nlmsg_relay };

')

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

## <summary>

##	dontaudit attempts to send audit messages.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_dontaudit_send_audit_msgs',`

	dontaudit $1 self:capability audit_write;

	dontaudit $1 self:netlink_audit_socket { r_netlink_socket_perms nlmsg_relay };

')

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

## <summary>

##	Set login uid

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_set_loginuid',`

	allow $1 self:capability audit_control;

	allow $1 self:netlink_audit_socket { r_netlink_socket_perms nlmsg_relay };

')

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

## <summary>

##	Set up audit

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_set_audit_parameters',`

	allow $1 self:capability { audit_write audit_control };

	allow $1 self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };

')

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

## <summary>

##	Read the audit log.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_read_audit_log',`

	gen_require(`

		type auditd_log_t;

	')

	files_search_var($1)

	read_files_pattern($1, auditd_log_t, auditd_log_t)

	allow $1 auditd_log_t:dir list_dir_perms;

')

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

## <summary>

##	Execute auditctl in the auditctl domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_domtrans_auditctl',`

	gen_require(`

		type auditctl_t, auditctl_exec_t;

	')

	domtrans_pattern($1, auditctl_exec_t, auditctl_t)

')

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

## <summary>

##	Execute auditctl in the auditctl domain, and

##	allow the specified role the auditctl domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	The role to be allowed the auditctl domain.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_run_auditctl',`

	gen_require(`

		type auditctl_t;

	')

	logging_domtrans_auditctl($1)

	role $2 types auditctl_t;

')

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

## <summary>

##	Execute auditd in the auditd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_domtrans_auditd',`

	gen_require(`

		type auditd_t, auditd_exec_t;

	')

	domtrans_pattern($1, auditd_exec_t, auditd_t)

')

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

## <summary>

##	Execute auditd in the auditd domain, and

##	allow the specified role the auditd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	The role to be allowed the auditd domain.

##	</summary>

## </param>

#

interface(`logging_run_auditd',`

	gen_require(`

		type auditd_t;

	')

	logging_domtrans_auditd($1)

	role $2 types auditd_t;

')

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

## <summary>

##	Connect to auditdstored over an unix stream socket.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_stream_connect_auditd',`

	refpolicywarn(`$0($*) has been deprecated, logging_stream_connect_dispatcher() should be used instead.')

	logging_stream_connect_dispatcher($1)

')

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

## <summary>

##	Execute a domain transition to run the audit dispatcher.

## </summary>

## <param name="domain">

## <summary>

##	Domain allowed to transition.

## </summary>

## </param>

#

interface(`logging_domtrans_dispatcher',`

	gen_require(`

		type audisp_t, audisp_exec_t;

	')

	domtrans_pattern($1, audisp_exec_t, audisp_t)

')

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

## <summary>

##	Signal the audit dispatcher.

## </summary>

## <param name="domain">

## <summary>

##	Domain allowed to transition.

## </summary>

## </param>

#

interface(`logging_signal_dispatcher',`

	gen_require(`

		type audisp_t;

	')

	allow $1 audisp_t:process signal;

')

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

## <summary>

##	Create a domain for processes

##	which can be started by the system audit dispatcher

## </summary>

## <param name="domain">

##	<summary>

##	Type to be used as a domain.

##	</summary>

## </param>

## <param name="entry_point">

##	<summary>

##	Type of the program to be used as an entry point to this domain.

##	</summary>

## </param>

#

interface(`logging_dispatcher_domain',`

	gen_require(`

		type audisp_t;

		role system_r;

	')

	domain_type($1)

	domain_entry_file($1, $2)

	role system_r types $1;

	domtrans_pattern(audisp_t, $2, $1)

	allow audisp_t $1:process { sigkill sigstop signull signal };

	allow audisp_t $2:file getattr;

	allow $1 audisp_t:unix_stream_socket rw_socket_perms;

')

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

## <summary>

##	Connect to the audit dispatcher over an unix stream socket.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_stream_connect_dispatcher',`

	gen_require(`

		type audisp_t, audisp_var_run_t;

	')

	files_search_pids($1)

	stream_connect_pattern($1, audisp_var_run_t, audisp_var_run_t, audisp_t)

')

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

## <summary>

##	Manage the auditd configuration files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_manage_audit_config',`

	gen_require(`

		type auditd_etc_t;

	')

	files_search_etc($1)

	manage_files_pattern($1, auditd_etc_t, auditd_etc_t)

')

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

## <summary>

##	Manage the audit log.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_manage_audit_log',`

	gen_require(`

		type auditd_log_t;

	')

	files_search_var($1)

	manage_dirs_pattern($1, auditd_log_t, auditd_log_t)

	manage_files_pattern($1, auditd_log_t, auditd_log_t)

')

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

## <summary>

##	Execute klogd in the klog domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_domtrans_klog',`

	gen_require(`

		type klogd_t, klogd_exec_t;

	')

	corecmd_search_bin($1)

	domtrans_pattern($1, klogd_exec_t, klogd_t)

')

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

## <summary>

##	Check if syslogd is executable.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_check_exec_syslog',`

	gen_require(`

		type syslogd_exec_t;

	')

	corecmd_list_bin($1)

	corecmd_read_bin_symlinks($1)

	allow $1 syslogd_exec_t:file execute;

')

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

## <summary>

##	Execute syslogd in the syslog domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_domtrans_syslog',`

	gen_require(`

		type syslogd_t, syslogd_exec_t;

	')

	corecmd_search_bin($1)

	domtrans_pattern($1, syslogd_exec_t, syslogd_t)

')

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

## <summary>

##	Create an object in the log directory, with a private type.

## </summary>

## <desc>

##	

##	Allow the specified domain to create an object

##	in the general system log directories (e.g., /var/log)

##	with a private type.  Typically this is used for creating

##	private log files in /var/log with the private type instead

##	of the general system log type. To accomplish this goal,

##	either the program must be SELinux-aware, or use this interface.

##	

## </desc>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <param name="private type">

##	<summary>

##	The type of the object to be created.

##	</summary>

## </param>

## <param name="object">

##	<summary>

##	The object class of the object being created.

##	</summary>

## </param>

## <infoflow type="write" weight="10"/>

#

interface(`logging_log_filetrans',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	filetrans_pattern($1, var_log_t, $2, $3)

')

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

## <summary>

##	Send system log messages.

## </summary>

## <desc>

##	

##	Allow the specified domain to connect to the

##	system log service (syslog), to send messages be added to

##	the system logs. Typically this is used by services

##	that do not have their own log file in /var/log.

##	

##	

##	This does not allow messages to be sent to

##	the auditing system.

##	

##	

##	Programs which use the libc function syslog() will

##	require this access.

##	

##	

##	Related interfaces:

##	

##	

##		
logging_send_audit_msgs()

##	

## </desc>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_send_syslog_msg',`

	gen_require(`

		type syslogd_t, devlog_t;

	')

	allow $1 devlog_t:lnk_file read_lnk_file_perms;

	allow $1 devlog_t:sock_file write_sock_file_perms;

	# the type of socket depends on the syslog daemon

	allow $1 syslogd_t:unix_dgram_socket sendto;

	allow $1 syslogd_t:unix_stream_socket connectto;

	allow $1 self:unix_dgram_socket create_socket_perms;

	allow $1 self:unix_stream_socket create_socket_perms;

	# If syslog is down, the glibc syslog() function

	# will write to the console.

	term_write_console($1)

	term_dontaudit_read_console($1)

')

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

## <summary>

##	Read the auditd configuration files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_read_audit_config',`

	gen_require(`

		type auditd_etc_t;

	')

	files_search_etc($1)

	read_files_pattern($1, auditd_etc_t, auditd_etc_t)

	allow $1 auditd_etc_t:dir list_dir_perms;

')

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

## <summary>

##	dontaudit search of auditd configuration files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_dontaudit_search_audit_config',`

	gen_require(`

		type auditd_etc_t;

	')

	dontaudit $1 auditd_etc_t:dir search_dir_perms;

')

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

## <summary>

##	Read syslog configuration files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_read_syslog_config',`

	gen_require(`

		type syslog_conf_t;

	')

	allow $1 syslog_conf_t:file read_file_perms;

')

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

## <summary>

##	Allows the domain to open a file in the

##	log directory, but does not allow the listing

##	of the contents of the log directory.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_search_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir search_dir_perms;

')

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

## <summary>

##	Do not audit attempts to search the var log directory.

## </summary>

## <param name="domain">

##	<summary>

##	Domain not to audit.

##	</summary>

## </param>

#

interface(`logging_dontaudit_search_logs',`

	gen_require(`

		type var_log_t;

	')

	dontaudit $1 var_log_t:dir search_dir_perms;

')

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

## <summary>

##	List the contents of the generic log directory (/var/log).

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_list_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir list_dir_perms;

')

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

## <summary>

##	Read and write the generic log directory (/var/log).

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_rw_generic_log_dirs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir rw_dir_perms;

')

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

## <summary>

##	Do not audit attempts to get the atttributes

##	of any log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_dontaudit_getattr_all_logs',`

	gen_require(`

		attribute logfile;

	')

	dontaudit $1 logfile:file getattr;

')

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

## <summary>

##	Append to all log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_append_all_logs',`

	gen_require(`

		attribute logfile;

		type var_log_t;

	')

	files_search_var($1)

	append_files_pattern($1, var_log_t, logfile)

')

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

## <summary>

##	Read all log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_read_all_logs',`

	gen_require(`

		attribute logfile;

	')

	files_search_var($1)

	allow $1 logfile:dir list_dir_perms;

	read_files_pattern($1, logfile, logfile)

')

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

## <summary>

##	Execute all log files in the caller domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

# cjp: not sure why this is needed.  This was added

# because of logrotate.

interface(`logging_exec_all_logs',`

	gen_require(`

		attribute logfile;

	')

	files_search_var($1)

	allow $1 logfile:dir list_dir_perms;

	can_exec($1, logfile)

')

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

## <summary>

##	read/write to all log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_rw_all_logs',`

	gen_require(`

		attribute logfile;

	')

	files_search_var($1)

	rw_files_pattern($1, logfile, logfile)

')

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

## <summary>

##	Create, read, write, and delete all log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_manage_all_logs',`

	gen_require(`

		attribute logfile;

	')

	files_search_var($1)

	manage_files_pattern($1, logfile, logfile)

	read_lnk_files_pattern($1, logfile, logfile)

')

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

## <summary>

##	Read generic log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_read_generic_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir list_dir_perms;

	read_files_pattern($1, var_log_t, var_log_t)

')

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

## <summary>

##	Write generic log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_write_generic_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir list_dir_perms;

	write_files_pattern($1, var_log_t, var_log_t)

')

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

## <summary>

##	Dontaudit Write generic log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_dontaudit_write_generic_logs',`

	gen_require(`

		type var_log_t;

	')

	dontaudit $1 var_log_t:file write;

')

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

## <summary>

##	Read and write generic log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`logging_rw_generic_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	allow $1 var_log_t:dir list_dir_perms;

	rw_files_pattern($1, var_log_t, var_log_t)

')

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

## <summary>

##	Create, read, write, and delete

##	generic log files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`logging_manage_generic_logs',`

	gen_require(`

		type var_log_t;

	')

	files_search_var($1)

	manage_files_pattern($1, var_log_t, var_log_t)

')

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