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

## <summary>Policy for sendmail.</summary>

########################################
## <summary>
##	Sendmail stub interface.  No access allowed.
## </summary>
## <param name="domain" unused="true">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_stub',`
	gen_require(`
		type sendmail_t;
	')
')

########################################
## <summary>
##	Allow attempts to read and write to
##	sendmail unnamed pipes.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_rw_pipes',`
	gen_require(`
		type sendmail_t;
	')

	allow $1 sendmail_t:fifo_file rw_fifo_file_perms;
')

########################################
## <summary>
##	Domain transition to sendmail.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`sendmail_domtrans',`
	gen_require(`
		type sendmail_t;
	')

	mta_sendmail_domtrans($1, sendmail_t)
')

#######################################
## <summary>
##  Execute sendmail in the sendmail domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_initrc_domtrans',`
	gen_require(`
		type sendmail_initrc_exec_t;
	')

	init_labeled_script_domtrans($1, sendmail_initrc_exec_t)
')

########################################
## <summary>
##	Execute the sendmail program in the sendmail domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to allow the sendmail domain.
##	</summary>
## </param>
## <rolecap/>
#
interface(`sendmail_run',`
	gen_require(`
		type sendmail_t;
	')

	sendmail_domtrans($1)
	role $2 types sendmail_t;
')

########################################
## <summary>
##	Send generic signals to sendmail.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_signal',`
	gen_require(`
		type sendmail_t;
	')

	allow $1 sendmail_t:process signal;
')

########################################
## <summary>
##	Read and write sendmail TCP sockets.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_rw_tcp_sockets',`
	gen_require(`
		type sendmail_t;
	')

	allow $1 sendmail_t:tcp_socket { read write };
')

########################################
## <summary>
##	Do not audit attempts to read and write
##	sendmail TCP sockets.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`sendmail_dontaudit_rw_tcp_sockets',`
	gen_require(`
		type sendmail_t;
	')

	dontaudit $1 sendmail_t:tcp_socket { read write };
')

########################################
## <summary>
##	Read and write sendmail unix_stream_sockets.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_rw_unix_stream_sockets',`
	gen_require(`
		type sendmail_t;
	')

	allow $1 sendmail_t:unix_stream_socket rw_socket_perms;
')

########################################
## <summary>
##	Do not audit attempts to read and write
##	sendmail unix_stream_sockets.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`sendmail_dontaudit_rw_unix_stream_sockets',`
	gen_require(`
		type sendmail_t;
	')

	dontaudit $1 sendmail_t:unix_stream_socket rw_socket_perms;
')

########################################
## <summary>
##	Read sendmail logs.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`sendmail_read_log',`
	gen_require(`
		type sendmail_log_t;
	')

	logging_search_logs($1)
	read_files_pattern($1, sendmail_log_t, sendmail_log_t)
')

########################################
## <summary>
##	Create, read, write, and delete sendmail logs.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`sendmail_manage_log',`
	gen_require(`
		type sendmail_log_t;
	')

	logging_search_logs($1)
	manage_files_pattern($1, sendmail_log_t, sendmail_log_t)
')

########################################
## <summary>
##	Create sendmail logs with the correct type.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_create_log',`
	gen_require(`
		type sendmail_log_t;
	')

	logging_log_filetrans($1, sendmail_log_t, file)
')

########################################
## <summary>
##	Manage sendmail tmp files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`sendmail_manage_tmp_files',`
	gen_require(`
		type sendmail_tmp_t;
	')

	files_search_tmp($1)
	manage_files_pattern($1, sendmail_tmp_t, sendmail_tmp_t)
')

########################################
## <summary>
##	Execute sendmail in the unconfined sendmail domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`sendmail_domtrans_unconfined',`
	gen_require(`
		type unconfined_sendmail_t;
	')

	mta_sendmail_domtrans($1, unconfined_sendmail_t)
')

########################################
## <summary>
##	Execute sendmail in the unconfined sendmail domain, and
##	allow the specified role the unconfined sendmail domain,
##	and use the caller's terminal.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`sendmail_run_unconfined',`
	gen_require(`
		type unconfined_sendmail_t;
	')

	sendmail_domtrans_unconfined($1)
	role $2 types unconfined_sendmail_t;
')

########################################
## <summary>
##	All of the rules required to administrate
##	an sendmail environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`sendmail_admin',`
	gen_require(`
		type sendmail_t, sendmail_initrc_exec_t, sendmail_log_t; 
		type sendmail_tmp_t, sendmail_var_run_t, unconfined_sendmail_t;
		type mail_spool_t;
	')

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

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

	sendmail_initrc_domtrans($1)
	domain_system_change_exemption($1)
	role_transition $2 sendmail_initrc_exec_t system_r;

	logging_search_logs($1)
	admin_pattern($1, sendmail_log_t)

	files_search_tmp($1)
	admin_pattern($1, sendmail_tmp_t)

	files_search_pids($1)
	admin_pattern($1, sendmail_var_run_t)

	files_search_spool($1)
	admin_pattern($1, mail_spool_t)
')