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

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

########################################
## <summary>
##	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 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>
##	 Execute domain in the ppp domain.
## </summary>
## <param name="domain">
##	<summary>
##	 Domain allowed access.
##	</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 access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to allow the ppp domain.
##	</summary>
## </param>
## <param name="terminal">
##	<summary>
##	The type of the terminal allow the ppp domain to use.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ppp_run_cond',`
	gen_require(`
		type pppd_t;
	')

	role $2 types pppd_t;

	tunable_policy(`pppd_for_user',`
		ppp_domtrans($1)
		allow pppd_t $3:chr_file rw_term_perms;
	')
')

########################################
## <summary>
##	 Unconditionally execute ppp daemon on behalf of a user or staff type.
## </summary>
## <param name="domain">
##	<summary>
##	 Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to allow the ppp domain.
##	</summary>
## </param>
## <param name="terminal">
##	<summary>
##	The type of the terminal allow the ppp domain to use.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ppp_run',`
	gen_require(`
		type pppd_t;
	')

	ppp_domtrans($1)
	role $2 types pppd_t;
	allow pppd_t $3:chr_file rw_term_perms;
')

########################################
## <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 { getattr read };
	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 { getattr read };
	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;
	')

	allow $1 pppd_var_run_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_var_run_t;
	')

	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>
##	All of the rules required to administrate 
##	an ppp environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain 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;
		type pppd_etc_rw_t, pppd_var_run_t;

		type pptp_t, pptp_log_t, pptp_var_run_t;
	')

	allow $1 pppd_t:process { ptrace signal_perms getattr };
	ps_process_pattern($1, pppd_t)
	        
	files_list_tmp($1)
	manage_files_pattern($1, pppd_tmp_t, pppd_tmp_t)

	logging_list_logs($1)
	manage_files_pattern($1, pppd_log_t, pppd_log_t)

	manage_files_pattern($1, pppd_lock_t, pppd_lock_t)

	files_list_etc($1)
	manage_files_pattern($1, pppd_etc_t, pppd_etc_t)

	manage_files_pattern($1, pppd_etc_rw_t, pppd_etc_rw_t)

	manage_files_pattern($1, pppd_secret_t, pppd_secret_t)

	files_list_pids($1)
	manage_files_pattern($1, pppd_var_run_t, pppd_var_run_t)

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

	manage_files_pattern($1, pptp_log_t, pptp_log_t)

	manage_files_pattern($1, pptp_var_run_t, pptp_var_run_t)
')