## <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 a SIGCHLD signal 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 ppp a kill signal

## </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 a generic signal 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 a generic signull 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 domain in the ppp 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 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>

##	The role to allow the ppp domain.

##	</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>

##	The role to allow the ppp domain.

##	</summary>

## </param>

## <rolecap/>

#

interface(`ppp_run',`

	gen_require(`

		attribute_role pppd_roles;

	')

	ppp_domtrans($1)

	roleattribute $2 pppd_roles;

')

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

## <summary>

##	 Execute domain in the ppp caller.

## </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;

	')

	read_files_pattern($1, pppd_etc_t, pppd_etc_t)

	files_search_etc($1)

')

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

## <summary>

##	Read PPP-writable configuration files.

## </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;

	')

	allow $1 pppd_etc_t:dir list_dir_perms;

	allow $1 pppd_etc_rw_t:file read_file_perms;

	files_search_etc($1)

')

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

## <summary>

##	Read PPP secrets.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ppp_read_secrets',`

	gen_require(`

		type pppd_etc_t, pppd_secret_t;

	')

	allow $1 pppd_etc_t:dir list_dir_perms;

	allow $1 pppd_secret_t:file read_file_perms;

	files_search_etc($1)

')

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

## <summary>

##	Read PPP pid files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ppp_read_pid_files',`

	gen_require(`

		type pppd_var_run_t;

	')

	files_search_pids($1)

	read_files_pattern($1, pppd_var_run_t, pppd_var_run_t)

')

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

## <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_var_run_t;

	')

	files_search_pids($1)

	allow $1 pppd_var_run_t:file manage_file_perms;

')

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

## <summary>

##	Create, read, write, and delete PPP pid files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`ppp_pid_filetrans',`

	gen_require(`

		type pppd_var_run_t;

	')

	files_pid_filetrans($1, pppd_var_run_t, file)

')

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

## <summary>

##	Execute ppp server in the ntpd 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>

##	Execute pppd server in the pppd domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`ppp_systemctl',`

	gen_require(`

		type pppd_unit_file_t;

		type pppd_t;

	')

	systemd_exec_systemctl($1)

	allow $1 pppd_unit_file_t:file read_file_perms;

	allow $1 pppd_unit_file_t:service manage_service_perms;

	ps_process_pattern($1, pppd_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_var_run_t;

		type pptp_t, pptp_log_t, pptp_var_run_t;

		type pppd_initrc_exec_t, pppd_etc_rw_t;

		type pppd_unit_file_t;

	')

	allow $1 pppd_t:process signal_perms;

	ps_process_pattern($1, pppd_t)

	tunable_policy(`deny_ptrace',`',`

		allow $1 pppd_t:process ptrace;

		allow $1 pptp_t:process ptrace;

	')

	allow $1 pptp_t:process signal_perms;

	ps_process_pattern($1, pptp_t)

	ppp_initrc_domtrans($1)

	domain_system_change_exemption($1)

	role_transition $2 pppd_initrc_exec_t system_r;

	allow $2 system_r;

	files_list_tmp($1)

	admin_pattern($1, pppd_tmp_t)

	logging_list_logs($1)

	admin_pattern($1, pppd_log_t)

	files_list_locks($1)

	admin_pattern($1, pppd_lock_t)

	files_list_etc($1)

	admin_pattern($1, pppd_etc_t)

	admin_pattern($1, pppd_etc_rw_t)

	admin_pattern($1, pppd_secret_t)

	files_list_pids($1)

	admin_pattern($1, pppd_var_run_t)

	admin_pattern($1, pptp_log_t)

	admin_pattern($1, pptp_var_run_t)

	ppp_systemctl($1)

	admin_pattern($1, pppd_unit_file_t)

	allow $1 pppd_unit_file_t:service all_service_perms;

')