policy_module(fastcgi, 0.1.10)

# This policy module provides support for mod_fcgid using the httpd system script domain.
# It provides "allow" rules that will overlap to varying degrees with selinux-policy
# packages for Fedora 5 onwards, and is a stepping stone to the merged policy included
# as updates for selinux-policy in Fedora 8, 9, and 10.
#
# Previous versions of this policy module used a separate domain, httpd_fastcgi_script_t,
# which is now an alias for httpd_sys_script_t.

require {
	type devpts_t;
	type httpd_t;
	#type httpd_config_t;
	type httpd_log_t;
	type httpd_sys_content_t;
	type httpd_sys_content_ra_t;
	type httpd_sys_content_ro_t;
	type httpd_sys_content_rw_t;
	type httpd_sys_script_exec_t;
	type httpd_sys_script_ra_t;
	type httpd_sys_script_ro_t;
	type httpd_sys_script_rw_t;
	type httpd_sys_script_t;
	type httpd_tmp_t;
	type httpd_var_run_t;
};

# Type aliases for contexts used with older policy modules
typealias httpd_sys_content_t     alias httpd_fastcgi_content_t;
typealias httpd_sys_content_ra_t  alias httpd_fastcgi_content_ra_t;
typealias httpd_sys_content_ro_t  alias httpd_fastcgi_content_ro_t;
typealias httpd_sys_content_rw_t  alias httpd_fastcgi_content_rw_t;
typealias httpd_sys_script_exec_t alias httpd_fastcgi_script_exec_t;
typealias httpd_sys_script_ra_t   alias httpd_fastcgi_script_ra_t;
typealias httpd_sys_script_ro_t   alias httpd_fastcgi_script_ro_t;
typealias httpd_sys_script_rw_t   alias httpd_fastcgi_script_rw_t;
typealias httpd_sys_script_t      alias httpd_fastcgi_script_t;
typealias httpd_var_run_t         alias httpd_fastcgi_var_run_t;

# ==========================================================
# Re-use httpd_sys_script_t for mod_fcgid apps
# ==========================================================

# Included in selinux-policy 2.3.7 (FC5)
#kernel_read_kernel_sysctls(httpd_sys_script_t)

# Allow FastCGI applications to do DNS lookups
sysnet_dns_name_resolve(httpd_sys_script_t)

# Allow FastCGI applications to read the routing table
allow httpd_sys_script_t self:netlink_route_socket { r_netlink_socket_perms };

# Allow httpd to create and use files and sockets for communicating with mod_fcgid
# Included in selinux-policy 2.3.7 (FC5) apart from dir setattr
#allow httpd_t httpd_var_run_t:dir { rw_dir_perms setattr };
#allow httpd_t httpd_var_run_t:file { create_file_perms };
#allow httpd_t httpd_var_run_t:sock_file { create_file_perms };
allow httpd_t httpd_var_run_t:dir setattr;

# Allow httpd to read httpd_sys_content_t
# (shouldn't this be in the content template?)
# Included in selinux-policy 2.3.7 (FC5)
#allow httpd_t httpd_sys_content_t:dir r_dir_perms;
#allow httpd_t httpd_sys_content_t:file r_file_perms;
#allow httpd_t httpd_sys_content_t:lnk_file { getattr read };

# Allow FastCGI applications to listen for FastCGI requests on their
# sockets and respond to them
allow httpd_sys_script_t httpd_t:unix_stream_socket { rw_stream_socket_perms };

# These are probably leaked file descriptors
dontaudit httpd_t devpts_t:chr_file ioctl;
dontaudit httpd_sys_script_t httpd_log_t:file ioctl;

# ======================================================
# Rules cribbed from recent httpd_sys_script_t policy
# ======================================================

# Included in selinux-policy 2.3.7 (FC5)
#dontaudit httpd_sys_script_t httpd_config_t:dir search;

fs_search_auto_mountpoints(httpd_sys_script_t)

# PHP uploads a file to /tmp and then execs programs to action them
allow httpd_sys_script_t httpd_tmp_t:dir manage_dir_perms;
allow httpd_sys_script_t httpd_tmp_t:file manage_file_perms;
files_tmp_filetrans(httpd_sys_script_t,httpd_sys_script_rw_t,{ dir file lnk_file sock_file fifo_file })

# Included in selinux-policy 2.3.7 (FC5)
#files_search_var_lib(httpd_sys_script_t)
#files_search_spool(httpd_sys_script_t)

# Should we add a boolean?
# Included in selinux-policy 2.3.7 (FC5)
#apache_domtrans_rotatelogs(httpd_sys_script_t)

# Included in selinux-policy 2.3.7 (FC5)
#ifdef(`distro_redhat',`
#	allow httpd_sys_script_t httpd_log_t:file { getattr append };
#')
#
#ifdef(`targeted_policy',`
#	tunable_policy(`httpd_enable_homedirs',`
#		userdom_search_generic_user_home_dirs(httpd_sys_script_t)
#	')
#')

tunable_policy(`httpd_enable_homedirs && use_nfs_home_dirs',`
	fs_read_nfs_files(httpd_sys_script_t)
	fs_read_nfs_symlinks(httpd_sys_script_t)
')

tunable_policy(`httpd_enable_homedirs && use_samba_home_dirs',`
	fs_read_cifs_files(httpd_sys_script_t)
	fs_read_cifs_symlinks(httpd_sys_script_t)
')

# Included in selinux-policy 2.3.7 (FC5)
#optional_policy(`
#	mysql_stream_connect(httpd_sys_script_t)
#	mysql_rw_db_sockets(httpd_sys_script_t)
#')
#
#optional_policy(`
#	clamav_domtrans_clamscan(httpd_sys_script_t)
#')