selinux-refpolicy/policy/modules/services/ppp.if

## <summary>Point to Point Protocol daemon creates links in ppp networks.</summary>

########################################
## <summary>
##	Create, read, write, and delete
##	ppp home files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_manage_home_files',`
	gen_require(`
		type ppp_home_t;
	')

	userdom_search_user_home_dirs($1)
	allow $1 ppp_home_t:file manage_file_perms;
')

########################################
## <summary>
##	Read ppp user home content files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_read_home_files',`
	gen_require(`
		type ppp_home_t;

	')

	userdom_search_user_home_dirs($1)
	allow $1 ppp_home_t:file read_file_perms;
')

########################################
## <summary>
##	Relabel ppp home files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_relabel_home_files',`
	gen_require(`
		type ppp_home_t;
	')

	userdom_search_user_home_dirs($1)
	allow $1 ppp_home_t:file relabel_file_perms;
')

########################################
## <summary>
##	Create objects in user home
##	directories with the ppp home 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(`ppp_home_filetrans_ppp_home',`
	gen_require(`
		type ppp_home_t;
	')

	userdom_user_home_dir_filetrans($1, ppp_home_t, $2, $3)
')

########################################
## <summary>
##	Inherit and use ppp file discriptors.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_use_fds',`
	gen_require(`
		type pppd_t;
	')

	allow $1 pppd_t:fd use;
')

########################################
## <summary>
##	Do not audit attempts to inherit
##	and use ppp file discriptors.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`ppp_dontaudit_use_fds',`
	gen_require(`
		type pppd_t;
	')

	dontaudit $1 pppd_t:fd use;
')

########################################
## <summary>
##	Send child terminated signals to ppp.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_sigchld',`
	gen_require(`
		type pppd_t;

	')

	allow $1 pppd_t:process sigchld;
')

########################################
## <summary>
##	Send kill signals to ppp.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
#
interface(`ppp_kill',`
	gen_require(`
		type pppd_t;
	')

	allow $1 pppd_t:process sigkill;
')

########################################
## <summary>
##	Send generic signals to ppp.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_signal',`
	gen_require(`
		type pppd_t;
	')

	allow $1 pppd_t:process signal;
')

########################################
## <summary>
##	Send null signals to ppp.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_signull',`
	gen_require(`
		type pppd_t;
	')

	allow $1 pppd_t:process signull;
')

########################################
## <summary>
##	 Execute pppd in the pppd domain.
## </summary>
## <param name="domain">
##	<summary>
##	 Domain allowed to transition.
##	</summary>
## </param>
#
interface(`ppp_domtrans',`
	gen_require(`
		type pppd_t, pppd_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, pppd_exec_t, pppd_t)
')

########################################
## <summary>
##	Conditionally execute pppd on
##	behalf of a user or staff type.
## </summary>
## <param name="domain">
##	<summary>
##	 Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ppp_run_cond',`
	gen_require(`
		attribute_role pppd_roles;
	')

	roleattribute $2 pppd_roles;

	tunable_policy(`pppd_for_user',`
		ppp_domtrans($1)
	')
')

########################################
## <summary>
##	Unconditionally execute ppp daemon
##	on behalf of a user or staff type.
## </summary>
## <param name="domain">
##	<summary>
##	 Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ppp_run',`
	gen_require(`
		attribute_role pppd_roles;
	')

	ppp_domtrans($1)
	roleattribute $2 pppd_roles;
')

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

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

########################################
## <summary>
##	Read ppp configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_read_config',`
	gen_require(`
		type pppd_etc_t;
	')

	files_search_etc($1)
	read_files_pattern($1, pppd_etc_t, pppd_etc_t)
')

########################################
## <summary>
##	Read ppp writable configuration content.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_read_rw_config',`
	gen_require(`
		type pppd_etc_t, pppd_etc_rw_t;
	')

	files_search_etc($1)
	allow $1 { pppd_etc_t pppd_etc_rw_t }:dir list_dir_perms;
	allow $1 pppd_etc_rw_t:file read_file_perms;
	allow $1 { pppd_etc_t pppd_etc_rw_t }:lnk_file read_lnk_file_perms;
')

########################################
## <summary>
##	Read ppp secret files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_read_secrets',`
	gen_require(`
		type pppd_etc_t, pppd_secret_t;
	')

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

########################################
## <summary>
##	Read ppp pid files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_read_pid_files',`
	gen_require(`
		type pppd_runtime_t;
	')

	files_search_pids($1)
	allow $1 pppd_runtime_t:file read_file_perms;
')

########################################
## <summary>
##	Create, read, write, and delete
##	ppp pid files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`ppp_manage_pid_files',`
	gen_require(`
		type pppd_runtime_t;
	')

	files_search_pids($1)
	allow $1 pppd_runtime_t:file manage_file_perms;
')

########################################
## <summary>
##	Create specified pppd pid objects
##	with a type transition.
## </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(`ppp_pid_filetrans',`
	gen_require(`
		type pppd_runtime_t;
	')

	files_pid_filetrans($1, pppd_runtime_t, $2, $3)
')

########################################
## <summary>
##	Execute pppd init script in
##	the initrc domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`ppp_initrc_domtrans',`
	gen_require(`
		type pppd_initrc_exec_t;
	')

	init_labeled_script_domtrans($1, pppd_initrc_exec_t)
')

########################################
## <summary>
##	All of the rules required to
##	administrate an ppp environment.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ppp_admin',`
	gen_require(`
		type pppd_t, pppd_tmp_t, pppd_log_t, pppd_lock_t;
		type pppd_etc_t, pppd_secret_t, pppd_etc_rw_t;
		type pppd_runtime_t, pppd_initrc_exec_t;
		type pptp_t, pptp_log_t, pptp_runtime_t;
	')

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

	init_startstop_service($1, $2, pppd_t, pppd_initrc_exec_t)

	files_list_tmp($1)
	admin_pattern($1, pppd_tmp_t)

	logging_list_logs($1)
	admin_pattern($1, { pptp_log_t pppd_log_t })

	files_list_locks($1)
	admin_pattern($1, pppd_lock_t)

	files_list_etc($1)
	admin_pattern($1, { pppd_etc_rw_t pppd_secret_t pppd_etc_t })

	files_list_pids($1)
	admin_pattern($1, { pptp_runtime_t pppd_runtime_t })
')