selinux-policy/policy/modules/services/ftp.if

## <summary>File transfer protocol service</summary>

#######################################
## <summary>
##	The per role template for the ftp module.
## </summary>
## <desc>
##	<p>
##	This template allows ftpd to manage files in
##	a user home directory, creating files with the
##	correct type.
##	</p>
##	<p>
##	This template is invoked automatically for each user, and
##	generally does not need to be invoked directly
##	by policy writers.
##	</p>
## </desc>
## <param name="userdomain_prefix">
##	<summary>
##	The prefix of the user domain (e.g., user
##	is the prefix for user_t).
##	</summary>
## </param>
#
template(`ftp_per_role_template',`
	gen_require(`
		type ftpd_t;
	')

	tunable_policy(`ftp_home_dir',`
		userdom_manage_user_home_content_files($1, ftpd_t)
		userdom_manage_user_home_content_symlinks($1, ftpd_t)
		userdom_manage_user_home_content_sockets($1, ftpd_t)
		userdom_manage_user_home_content_pipes($1, ftpd_t)
		userdom_user_home_dir_filetrans_user_home_content($1, ftpd_t, { dir file lnk_file sock_file fifo_file })
	')
')

########################################
## <summary>
##      Use ftp by connecting over TCP.  (Deprecated)
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`ftp_tcp_connect',`
	refpolicywarn(`$0($*) has been deprecated.')
')

########################################
## <summary>
##      Read ftpd etc files
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`ftp_read_config',`
	gen_require(`
		type ftpd_etc_t;
	')

	files_search_etc($1)
	allow $1 ftpd_etc_t:file { getattr read };
')

########################################
## <summary>
##      Execute FTP daemon entry point programs.
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`ftp_check_exec',`
	gen_require(`
		type ftpd_exec_t;
	')

	corecmd_search_bin($1)
	allow $1 ftpd_exec_t:file { getattr execute };
')

########################################
## <summary>
##      Read FTP transfer logs
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`ftp_read_log',`
	gen_require(`
		type xferlog_t;
	')

	logging_search_logs($1)
	allow $1 xferlog_t:file read_file_perms;
')

########################################
## <summary>
##      Execute the ftpdctl program in the ftpdctl domain.
## </summary>
## <param name="domain">
##      <summary>
##      Domain allowed access.
##      </summary>
## </param>
#
interface(`ftp_domtrans_ftpdctl',`
	gen_require(`
		type ftpdctl_t, ftpdctl_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, ftpdctl_exec_t, ftpdctl_t)
')

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

	ftp_domtrans_ftpdctl($1)
	role $2 types ftpdctl_t;
	allow ftpdctl_t $3:chr_file rw_term_perms;
')

########################################
## <summary>
##	All of the rules required to administrate 
##	an ftp environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to be allowed to manage the ftp domain.
##	</summary>
## </param>
## <param name="terminal">
##	<summary>
##	The type of the terminal allow the ftpdctl domain to use.
##	</summary>
## </param>
## <rolecap/>
#
interface(`ftp_admin',`
	gen_require(`
		type ftpd_t, ftpdctl_t, ftpd_tmp_t;
		type ftpd_etc_t, ftpd_lock_t;
		type ftpd_var_run_t, xferlog_t;
		type ftpd_initrc_exec_t;
	')

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

	init_labeled_script_domtrans($1, ftpd_initrc_exec_t)
	domain_system_change_exemption($1)
	role_transition $2 ftpd_initrc_exec_t system_r;
	allow $2 system_r;

	ps_process_pattern($1, ftpdctl_t)
	ftp_run_ftpdctl($1, $2, $3)

	miscfiles_manage_public_files($1)

	files_list_tmp($1)
	admin_pattern($1, ftpd_tmp_t)

	files_list_etc($1)
	admin_pattern($1, ftpd_etc_t)

	files_list_var($1)
	admin_pattern($1, ftpd_lock_t)

	files_list_pids($1)
	admin_pattern($1, ftpd_var_run_t)

	logging_list_logs($1)
	admin_pattern($1, xferlog_t)
')