debian-selinux-policies/policy/modules/postfix.if

## <summary>Postfix email server.</summary>

########################################
## <summary>
##	Postfix stub interface.  No access allowed.
## </summary>
## <param name="domain" unused="true">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_stub',`
	gen_require(`
		type postfix_master_t;
	')
')

#######################################
## <summary>
##	The template to define a postfix domain.
## </summary>
## <param name="domain_prefix">
##	<summary>
##	Domain prefix to be used.
##	</summary>
## </param>
#
template(`postfix_domain_template',`
	gen_require(`
		attribute postfix_domain;
	')

	########################################
	#
	# Declarations
	#

	type postfix_$1_t, postfix_domain;
	type postfix_$1_exec_t;
	domain_type(postfix_$1_t)
	domain_entry_file(postfix_$1_t, postfix_$1_exec_t)
	role system_r types postfix_$1_t;

	########################################
	#
	# Policy
	#

	can_exec(postfix_$1_t, postfix_$1_exec_t)

	auth_use_nsswitch(postfix_$1_t)
')

#######################################
## <summary>
##	The template to define a postfix server domain.
## </summary>
## <param name="domain_prefix">
##	<summary>
##	Domain prefix to be used.
##	</summary>
## </param>
#
template(`postfix_server_domain_template',`
	gen_require(`
		attribute postfix_server_domain, postfix_server_tmp_content;
	')

	########################################
	#
	# Declarations
	#

	postfix_domain_template($1)

	typeattribute postfix_$1_t postfix_server_domain;

	type postfix_$1_tmp_t, postfix_server_tmp_content;
	files_tmp_file(postfix_$1_tmp_t)

	########################################
	#
	# Declarations
	#

	manage_dirs_pattern(postfix_$1_t, postfix_$1_tmp_t, postfix_$1_tmp_t)
	manage_files_pattern(postfix_$1_t, postfix_$1_tmp_t, postfix_$1_tmp_t)
	files_tmp_filetrans(postfix_$1_t, postfix_$1_tmp_t, { file dir })

	domtrans_pattern(postfix_master_t, postfix_$1_exec_t, postfix_$1_t)
')

#######################################
## <summary>
##	The template to define a postfix user domain.
## </summary>
## <param name="domain_prefix">
##	<summary>
##	Domain prefix to be used.
##	</summary>
## </param>
#
template(`postfix_user_domain_template',`
	gen_require(`
		attribute postfix_user_domains, postfix_user_domtrans;
	')

	########################################
	#
	# Declarations
	#

	postfix_domain_template($1)

	typeattribute postfix_$1_t postfix_user_domains;

	########################################
	#
	# Policy
	#

	allow postfix_$1_t self:capability dac_override;

	domtrans_pattern(postfix_user_domtrans, postfix_$1_exec_t, postfix_$1_t)

	domain_use_interactive_fds(postfix_$1_t)
')

########################################
## <summary>
##	Read postfix configuration content.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`postfix_read_config',`
	gen_require(`
		type postfix_etc_t;
	')

	files_search_etc($1)
	allow $1 postfix_etc_t:dir list_dir_perms;
	allow $1 postfix_etc_t:file read_file_perms;
	allow $1 postfix_etc_t:lnk_file read_lnk_file_perms;
')

########################################
## <summary>
##	Create specified object in postfix
##	etc directories with a type transition.
## </summary>
## <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>
## <param name="name" optional="true">
##	<summary>
##	The name of the object being created.
##	</summary>
## </param>
#
interface(`postfix_config_filetrans',`
	gen_require(`
		type postfix_etc_t;
	')

	filetrans_pattern($1, postfix_etc_t, $2, $3, $4)
')

########################################
## <summary>
##	Do not audit attempts to read and
##	write postfix local delivery
##	TCP sockets.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`postfix_dontaudit_rw_local_tcp_sockets',`
	gen_require(`
		type postfix_local_t;
	')

	dontaudit $1 postfix_local_t:tcp_socket { read write };
')

########################################
## <summary>
##	Read and write postfix local pipes.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_rw_local_pipes',`
	gen_require(`
		type postfix_local_t;
	')

	allow $1 postfix_local_t:fifo_file rw_fifo_file_perms;
')

########################################
## <summary>
##	Read postfix local process state files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_read_local_state',`
	gen_require(`
		type postfix_local_t;
	')

	kernel_search_proc($1)
	allow $1 postfix_local_t:dir list_dir_perms;
	allow $1 postfix_local_t:file read_file_perms;
	allow $1 postfix_local_t:lnk_file read_lnk_file_perms;
')

########################################
## <summary>
##	Read and write inherited postfix master pipes.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_rw_inherited_master_pipes',`
	gen_require(`
		type postfix_master_t;
	')

	allow $1 postfix_master_t:fd use;
	allow $1 postfix_master_t:fifo_file { getattr write append lock ioctl read };
')

########################################
## <summary>
##	Read postfix master process state files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_read_master_state',`
	gen_require(`
		type postfix_master_t;
	')

	kernel_search_proc($1)
	allow $1 postfix_master_t:dir list_dir_perms;
	allow $1 postfix_master_t:file read_file_perms;
	allow $1 postfix_master_t:lnk_file read_lnk_file_perms;
')

########################################
## <summary>
##	Use postfix master file descriptors.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_use_fds_master',`
	gen_require(`
		type postfix_master_t;
	')

	allow $1 postfix_master_t:fd use;
')

########################################
## <summary>
##	Do not audit attempts to use
##	postfix master process file
##	file descriptors.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`postfix_dontaudit_use_fds',`
	gen_require(`
		type postfix_master_t;
	')

	dontaudit $1 postfix_master_t:fd use;
')

########################################
## <summary>
##	Execute postfix_map in the postfix_map domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`postfix_domtrans_map',`
	gen_require(`
		type postfix_map_t, postfix_map_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, postfix_map_exec_t, postfix_map_t)
')

########################################
## <summary>
##	Execute postfix map in the postfix
##	map domain, and allow the specified
##	role the postfix_map domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`postfix_run_map',`
	gen_require(`
		attribute_role postfix_map_roles;
	')

	postfix_domtrans_map($1)
	roleattribute $2 postfix_map_roles;
')

########################################
## <summary>
##	Execute the master postfix program
##	in the postfix_master domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`postfix_domtrans_master',`
	gen_require(`
		type postfix_master_t, postfix_master_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, postfix_master_exec_t, postfix_master_t)
')

########################################
## <summary>
##	Execute the master postfix program
##	in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_exec_master',`
	gen_require(`
		type postfix_master_exec_t;
	')

	corecmd_search_bin($1)
	can_exec($1, postfix_master_exec_t)
')

#######################################
## <summary>
##	Connect to postfix master process
##	using a unix domain stream socket.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`postfix_stream_connect_master',`
	gen_require(`
		type postfix_master_t, postfix_public_t;
	')

	stream_connect_pattern($1, postfix_public_t, postfix_public_t, postfix_master_t)
')

########################################
## <summary>
##	Read and write postfix master
##	unnamed pipes.  (Deprecated)
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_rw_master_pipes',`
	refpolicywarn(`$0($*) has been deprecated, use postfix_rw_inherited_master_pipes() instead.')
	postfix_rw_inherited_master_pipes($1)
')

########################################
## <summary>
##	Execute the master postdrop in the
##	postfix postdrop domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`postfix_domtrans_postdrop',`
	gen_require(`
		type postfix_postdrop_t, postfix_postdrop_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, postfix_postdrop_exec_t, postfix_postdrop_t)
')

########################################
## <summary>
##	Execute the master postqueue in the
##	postfix postqueue domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`postfix_domtrans_postqueue',`
	gen_require(`
		type postfix_postqueue_t, postfix_postqueue_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, postfix_postqueue_exec_t, postfix_postqueue_t)
')

#######################################
## <summary>
##	Execute the master postqueue in
##	the caller domain.  (Deprecated)
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`posftix_exec_postqueue',`
	refpolicywarn(`$0($*) has been deprecated.')
	postfix_exec_postqueue($1)
')

#######################################
## <summary>
##	Execute postfix postqueue in
##	the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_exec_postqueue',`
	gen_require(`
		type postfix_postqueue_exec_t;
	')

	corecmd_search_bin($1)
	can_exec($1, postfix_postqueue_exec_t)
')

########################################
## <summary>
##	Create postfix private sock files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_create_private_sockets',`
	gen_require(`
		type postfix_private_t;
	')

	create_sock_files_pattern($1, postfix_private_t, postfix_private_t)
')

########################################
## <summary>
##	Create, read, write, and delete
##	postfix private sock files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_manage_private_sockets',`
	gen_require(`
		type postfix_private_t;
	')

	manage_sock_files_pattern($1, postfix_private_t, postfix_private_t)
')

########################################
## <summary>
##	Execute the smtp postfix program
##	in the postfix smtp domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`postfix_domtrans_smtp',`
	gen_require(`
		type postfix_smtp_t, postfix_smtp_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, postfix_smtp_exec_t, postfix_smtp_t)
')

########################################
## <summary>
##	Get attributes of all postfix mail
##	spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_getattr_all_spool_files',`
	gen_require(`
		attribute postfix_spool_type;
	')

	files_search_spool($1)
	getattr_files_pattern($1, postfix_spool_type, postfix_spool_type)
')

########################################
## <summary>
##	Search postfix mail spool directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_search_spool',`
	gen_require(`
		type postfix_spool_t;
	')

	files_search_spool($1)
	allow $1 postfix_spool_t:dir search_dir_perms;
')

########################################
## <summary>
##	List postfix mail spool directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_list_spool',`
	gen_require(`
		type postfix_spool_t;
	')

	files_search_spool($1)
	allow $1 postfix_spool_t:dir list_dir_perms;
')

########################################
## <summary>
##	Read postfix mail spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_read_spool_files',`
	gen_require(`
		type postfix_spool_t;
	')

	files_search_spool($1)
	read_files_pattern($1, postfix_spool_t, postfix_spool_t)
')

########################################
## <summary>
##	Create, read, write, and delete
##	postfix mail spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_manage_spool_files',`
	gen_require(`
		type postfix_spool_t;
	')

	files_search_spool($1)
	manage_files_pattern($1, postfix_spool_t, postfix_spool_t)
')

########################################
## <summary>
##	Execute postfix user mail programs
##	in their respective domains.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_domtrans_user_mail_handler',`
	gen_require(`
		attribute postfix_user_domtrans;
	')

	typeattribute $1 postfix_user_domtrans;
')

########################################
## <summary>
##	All of the rules required to
##	administrate an postfix environment.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`postfix_admin',`
	gen_require(`
		attribute postfix_domain, postfix_spool_type, postfix_server_tmp_content;
		type postfix_initrc_exec_t, postfix_prng_t, postfix_etc_t;
		type postfix_data_t, postfix_var_run_t, postfix_public_t;
		type postfix_private_t, postfix_map_tmp_t, postfix_exec_t;
		type postfix_keytab_t;
	')

	allow $1 postfix_domain:process { ptrace signal_perms };
	ps_process_pattern($1, postfix_domain)

	init_labeled_script_domtrans($1, postfix_initrc_exec_t)
	domain_system_change_exemption($1)
	role_transition $2 postfix_initrc_exec_t system_r;
	allow $2 system_r;

	files_search_etc($1)
	admin_pattern($1, { postfix_prng_t postfix_etc_t postfix_exec_t postfix_keytab_t })

	files_search_spool($1)
	admin_pattern($1, { postfix_public_t postfix_private_t postfix_spool_type })

	files_search_var_lib($1)
	admin_pattern($1, postfix_data_t)

	files_search_pids($1)
	admin_pattern($1, postfix_var_run_t)

	files_search_tmp($1)
	admin_pattern($1, { postfix_server_tmp_content postfix_map_tmp_t })

	postfix_exec_master($1)
	postfix_exec_postqueue($1)
	postfix_stream_connect_master($1)
	postfix_run_map($1, $2)
')