## <summary>Policy for the Debian package manager.</summary>

# TODO: need debconf policy

# TODO: need install-menu policy

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

## <summary>

##	Execute dpkg programs in the dpkg domain.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_domtrans',`

	gen_require(`

		type dpkg_t, dpkg_exec_t;

	')

	files_search_usr($1)

	corecmd_search_bin($1)

	domain_auto_trans($1,dpkg_exec_t,dpkg_t)

	# allow basic communication

	allow $1 dpkg_t:fd use;

	allow dpkg_t $1:fd use;

	allow dpkg_t $1:fifo_file rw_file_perms;

	allow dpkg_t $1:process sigchld;

')

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

## <summary>

##	Execute dpkg_script programs in the dpkg_script domain.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`dpkg_domtrans_script',`

	gen_require(`

		type dpkg_script_t;

	')

	# transition to dpkg script:

	corecmd_shell_domtrans($1,dpkg_script_t)

	allow $1 dpkg_script_t:fd use;

	allow dpkg_script_t $1:fd use;

	allow dpkg_script_t $1:fifo_file rw_file_perms;

	allow dpkg_script_t $1:process sigchld;

')

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

## <summary>

##	Execute dpkg programs in the dpkg domain.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	The role to allow the dpkg domain.

##	</summary>

## </param>

## <param name="terminal">

##	<summary>

##	The type of the terminal allow the dpkg domain to use.

##	</summary>

## </param>

## <rolecap/>

#

interface(`dpkg_run',`

	gen_require(`

		type dpkg_t, dpkg_script_t;

	')

	dpkg_domtrans($1)

	role $2 types dpkg_t;

	role $2 types dpkg_script_t;

	seutil_run_loadpolicy(dpkg_script_t,$2,$3)

	allow dpkg_t $3:chr_file rw_term_perms;

')

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

## <summary>

##	Inherit and use file descriptors from dpkg.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_use_fds',`

	gen_require(`

		type dpkg_t;

	')

	allow $1 dpkg_t:fd use;

')

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

## <summary>

##	Read from an unnamed dpkg pipe.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_read_pipes',`

	gen_require(`

		type dpkg_t;

	')

	allow $1 dpkg_t:fifo_file r_file_perms;

')

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

## <summary>

##	Read and write an unnamed dpkg pipe.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_rw_pipes',`

	gen_require(`

		type dpkg_t;

	')

	allow $1 dpkg_t:fifo_file rw_file_perms;

')

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

## <summary>

##	Inherit and use file descriptors from dpkg scripts.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_use_script_fds',`

	gen_require(`

		type dpkg_script_t;

	')

	allow $1 dpkg_script_t:fd use;

')

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

## <summary>

##	Read the dpkg package database.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_read_db',`

	gen_require(`

		type dpkg_var_lib_t;

	')

	files_search_var_lib($1)

	allow $1 dpkg_var_lib_t:dir r_dir_perms;

	allow $1 dpkg_var_lib_t:file { getattr read };

	allow $1 dpkg_var_lib_t:lnk_file r_file_perms;

')

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

## <summary>

##	Create, read, write, and delete the dpkg package database.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_manage_db',`

	gen_require(`

		type dpkg_var_lib_t;

	')

	files_search_var_lib($1)

	allow $1 dpkg_var_lib_t:dir rw_dir_perms;

	allow $1 dpkg_var_lib_t:file manage_file_perms;

	allow $1 dpkg_var_lib_t:lnk_file { getattr read write unlink };

')

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

## <summary>

##	Do not audit attempts to create, read, 

##	write, and delete the dpkg package database.

## </summary>

## <param name="domain">

##	<summary>

##	Domain to not audit.

##	</summary>

## </param>

#

interface(`dpkg_dontaudit_manage_db',`

	gen_require(`

		type dpkg_var_lib_t;

	')

	dontaudit $1 dpkg_var_lib_t:dir rw_dir_perms;

	dontaudit $1 dpkg_var_lib_t:file manage_file_perms;

	dontaudit $1 dpkg_var_lib_t:lnk_file create_lnk_perms;

')

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

## <summary>

##	Lock the dpkg package database.

## </summary>

## <param name="domain">

##	<summary>

##	The type of the process performing this action.

##	</summary>

## </param>

#

interface(`dpkg_lock_db',`

	gen_require(`

		type dpkg_lock_t;

	')

	files_search_var_lib($1)

	allow $1 dpkg_var_lib_t:dir r_dir_perms;

	allow $1 dpkg_lock_t:file { getattr create read write append unlink lock };

')