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

## <summary>Squid caching http proxy server</summary>

########################################
## <summary>
##	Execute squid in the squid domain.
## </summary>
## <param name="domain">
##	<summary>
##	The type of the process performing this action.
##	</summary>
## </param>
#
interface(`squid_domtrans',`
	gen_require(`
		type squid_t, squid_exec_t;
	')

	corecmd_search_sbin($1)
	domain_auto_trans($1,squid_exec_t,squid_t)

	allow $1 squid_t:fd use;
	allow squid_t $1:fd use;
	allow squid_t $1:fifo_file rw_file_perms;
	allow squid_t $1:process sigchld;
')

########################################
## <summary>
##	Read squid configuration file.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`squid_read_config',`
	gen_require(`
		type squid_conf_t;
	')

	files_search_etc($1)
	allow $1 squid_conf_t:file r_file_perms;
')

########################################
## <summary>
##	Append squid logs.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`squid_read_log',`
	gen_require(`
		type squid_log_t;
	')

	logging_search_logs($1)
	allow $1 squid_log_t:dir search_dir_perms;
	allow $1 squid_log_t:file r_file_perms;
')

########################################
## <summary>
##	Append squid logs.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`squid_append_log',`
	gen_require(`
		type squid_log_t;
	')

	logging_search_logs($1)
	allow $1 squid_log_t:dir search_dir_perms;
	allow $1 squid_log_t:file { getattr append };
')

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

	logging_search_logs($1)
	allow $1 squid_log_t:dir rw_dir_perms;
	allow $1 squid_log_t:file create_file_perms;
')

########################################
## <summary>
##	Use squid services by connecting over TCP.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`squid_use',`
	gen_require(`
		type squid_t;
	')

	allow $1 squid_t:tcp_socket { connectto recvfrom };
	allow squid_t $1:tcp_socket { acceptfrom recvfrom };
	kernel_tcp_recvfrom($1)
')