selinux-policy/refpolicy/policy/modules/services/courier.te
2006-04-11 15:28:37 +00:00

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policy_module(courier,1.0.0)
########################################
#
# Declarations
#
courier_domain_template(authdaemon)
type courier_etc_t;
files_type(courier_etc_t)
courier_domain_template(pcp)
courier_domain_template(pop)
courier_domain_template(tcpd)
type courier_var_lib_t;
files_type(courier_var_lib_t)
type courier_var_run_t;
files_pid_file(courier_var_run_t)
type courier_exec_t;
files_type(courier_exec_t)
courier_domain_template(sqwebmail)
typealias courier_sqwebmail_exec_t alias sqwebmail_cron_exec_t;
########################################
#
# Authdaemon local policy
#
allow courier_authdaemon_t self:capability { setuid setgid sys_tty_config };
allow courier_authdaemon_t self:unix_stream_socket connectto;
can_exec(courier_authdaemon_t, courier_exec_t)
allow courier_authdaemon_t courier_tcpd_t:fd use;
allow courier_authdaemon_t courier_tcpd_t:tcp_socket rw_stream_socket_perms;
allow courier_authdaemon_t courier_tcpd_t:fifo_file rw_file_perms;
allow courier_authdaemon_t courier_tcpd_t:tcp_socket rw_stream_socket_perms;
allow courier_authdaemon_t courier_tcpd_t:unix_stream_socket rw_stream_socket_perms;
allow courier_authdaemon_t courier_tcpd_t:process sigchld;
allow courier_authdaemon_t courier_tcpd_t:fd use;
allow courier_authdaemon_t courier_tcpd_t:tcp_socket rw_stream_socket_perms;
allow courier_authdaemon_t courier_tcpd_t:fifo_file rw_file_perms;
corecmd_search_sbin(courier_authdaemon_t)
# for SSP
dev_read_urand(courier_authdaemon_t)
files_getattr_tmp_dirs(courier_authdaemon_t)
auth_domtrans_chk_passwd(courier_authdaemon_t)
libs_read_lib_files(courier_authdaemon_t)
miscfiles_read_localization(courier_authdaemon_t)
# should not be needed!
userdom_search_unpriv_users_home_dirs(courier_authdaemon_t)
userdom_dontaudit_search_sysadm_home_dirs(courier_authdaemon_t)
courier_domtrans_pop(courier_authdaemon_t)
########################################
#
# Calendar (PCP) local policy
#
allow courier_pcp_t self:capability { setuid setgid };
dev_read_rand(courier_pcp_t)
########################################
#
# POP3/IMAP local policy
#
allow courier_pop_t courier_authdaemon_t:tcp_socket rw_stream_socket_perms;
allow courier_pop_t courier_authdaemon_t:process sigchld;
allow courier_pop_t courier_tcpd_t:{ unix_stream_socket tcp_socket } rw_stream_socket_perms;
# inherits file handle - should it?
allow courier_pop_t courier_var_lib_t:file { read write };
miscfiles_read_localization(courier_pop_t)
courier_domtrans_authdaemon(courier_pop_t)
# do the actual work (read the Maildir)
userdom_manage_unpriv_users_home_content_files(courier_pop_t)
# cjp: the fact that this is different for pop vs imap means that
# there should probably be a courier_pop_t and courier_imap_t
# this should also probably be a separate type too instead of
# the regular home dir
userdom_manage_unpriv_users_home_content_dirs(courier_pop_t)
########################################
#
# TCPd local policy
#
allow courier_tcpd_t self:capability kill;
can_exec(courier_tcpd_t, courier_exec_t)
allow courier_tcpd_t courier_var_lib_t:dir rw_dir_perms;
allow courier_tcpd_t courier_var_lib_t:file manage_file_perms;
allow courier_tcpd_t courier_var_lib_t:lnk_file create_lnk_perms;
files_search_var_lib(courier_tcpd_t)
corecmd_search_sbin(courier_tcpd_t)
corenet_tcp_bind_pop_port(courier_tcpd_t)
# for TLS
dev_read_rand(courier_tcpd_t)
dev_read_urand(courier_tcpd_t)
miscfiles_read_localization(courier_tcpd_t)
courier_domtrans_pop(courier_tcpd_t)
########################################
#
# Webmail local policy
#
kernel_read_kernel_sysctls(courier_sqwebmail_t)
optional_policy(`
cron_system_entry(courier_sqwebmail_t,courier_sqwebmail_exec_t)
')