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//usr/share/selinux/devel/include/admin/dpkg.if

## <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)
	domtrans_pattern($1, dpkg_exec_t, dpkg_t)
')

########################################
## <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 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>
## <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)
')

########################################
## <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 read_fifo_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_fifo_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 list_dir_perms;
	read_files_pattern($1, dpkg_var_lib_t, dpkg_var_lib_t)
	read_lnk_files_pattern($1, dpkg_var_lib_t, dpkg_var_lib_t)
')

########################################
## <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)
	manage_files_pattern($1, dpkg_var_lib_t, dpkg_var_lib_t)
	manage_lnk_files_pattern($1, dpkg_var_lib_t, dpkg_var_lib_t)
')

########################################
## <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 manage_lnk_file_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, dpkg_var_lib_t;
	')

files_search_var_lib($1)
	allow $1 dpkg_var_lib_t:dir list_dir_perms;
	allow $1 dpkg_lock_t:file manage_file_perms;
')