337 lines
8.4 KiB
Plaintext
337 lines
8.4 KiB
Plaintext
## <summary>Line printer daemon</summary>
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#######################################
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## <summary>
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## The per user domain template for the lpd module.
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## </summary>
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## <desc>
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## <p>
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## This template creates a derived domains which are used
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## for lpr printing client.
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## </p>
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## <p>
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## This template is invoked automatically for each user, and
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## generally does not need to be invoked directly
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## by policy writers.
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## </p>
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## </desc>
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## <param name="userdomain_prefix">
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## The prefix of the user domain (e.g., user
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## is the prefix for user_t).
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## </param>
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## <param name="user_domain">
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## The type of the user domain.
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## </param>
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## <param name="user_role">
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## The role associated with the user domain.
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## </param>
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#
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template(`lpd_per_userdomain_template',`
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gen_require(`
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type lpr_exec_t, lpd_t, print_spool_t, printconf_t, lpd_var_run_t, printer_t;
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')
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##############################
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#
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# Declarations
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#
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# Derived domain based on the calling user domain and the program
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type $1_lpr_t;
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domain_type($1_lpr_t)
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domain_entry_file($1_lpr_t,lpr_exec_t)
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role $3 types $1_lpr_t;
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type $1_lpr_tmp_t;
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files_tmp_file($1_lpr_tmp_t)
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# Type for spool files.
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type $1_print_spool_t;
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files_type($1_print_spool_t)
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##############################
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#
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# Local policy
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#
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allow $1_lpr_t self:capability { setuid dac_override net_bind_service chown };
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allow $1_lpr_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_lpr_t self:tcp_socket create_socket_perms;
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allow $1_lpr_t self:udp_socket create_socket_perms;
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# lpr can run in lightweight mode, without a local print spooler.
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allow $1_lpr_t lpd_var_run_t:dir search;
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allow $1_lpr_t lpd_var_run_t:sock_file write;
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files_read_var_files($1_lpr_t)
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# Connect to lpd via a Unix domain socket.
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allow $1_lpr_t printer_t:sock_file rw_file_perms;
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allow $1_lpr_t lpd_t:unix_stream_socket connectto;
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# connecto to a network lpd
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allow $1_lpr_t lpd_t:tcp_socket { connectto recvfrom };
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allow lpd_t $1_lpr_t:tcp_socket { acceptfrom recvfrom };
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# Send SIGHUP to lpd.
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allow $1_lpr_t lpd_t:process signal;
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can_exec($1_lpr_t,lpr_exec_t)
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allow $1_lpr_t $1_lpr_tmp_t:dir create_dir_perms;
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allow $1_lpr_t $1_lpr_tmp_t:file create_file_perms;
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files_filetrans_tmp($1_lpr_t, $1_lpr_tmp_t, { file dir })
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allow $1_lpr_t $1_print_spool_t:file create_file_perms;
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allow $1_lpr_t print_spool_t:dir rw_dir_perms;
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type_transition $1_lpr_t print_spool_t:file $1_print_spool_t;
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# Read and write shared files in the spool directory.
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allow $1_lpr_t print_spool_t:file rw_file_perms;
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allow $1_lpr_t printconf_t:dir r_dir_perms;
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allow $1_lpr_t printconf_t:file r_file_perms;
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allow $1_lpr_t printconf_t:lnk_file { getattr read };
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dontaudit $1_lpr_t $2:unix_stream_socket { read write };
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# Transition from the user domain to the derived domain.
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allow $2 $1_lpr_t:fd use;
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allow $1_lpr_t $2:fd use;
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allow $1_lpr_t $2:fifo_file rw_file_perms;
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allow $1_lpr_t $2:process sigchld;
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domain_auto_trans($2,lpr_exec_t,$1_lpr_t)
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allow $2 $1_lpr_t:process signull;
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# Allow lpd to read, rename, and unlink spool files.
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allow lpd_t $1_print_spool_t:file r_file_perms;
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allow lpd_t $1_print_spool_t:file link_file_perms;
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kernel_tcp_recvfrom($1_lpr_t)
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corenet_tcp_sendrecv_generic_if($1_lpr_t)
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corenet_udp_sendrecv_generic_if($1_lpr_t)
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corenet_raw_sendrecv_generic_if($1_lpr_t)
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corenet_tcp_sendrecv_all_nodes($1_lpr_t)
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corenet_udp_sendrecv_all_nodes($1_lpr_t)
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corenet_raw_sendrecv_all_nodes($1_lpr_t)
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corenet_tcp_sendrecv_all_ports($1_lpr_t)
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corenet_udp_sendrecv_all_ports($1_lpr_t)
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corenet_tcp_bind_all_nodes($1_lpr_t)
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corenet_udp_bind_all_nodes($1_lpr_t)
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corenet_tcp_connect_all_ports($1_lpr_t)
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# for /dev/null
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dev_list_all_dev_nodes($1_lpr_t)
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domain_use_wide_inherit_fd($1_lpr_t)
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files_search_spool($1_lpr_t)
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# for lpd config files (should have a new type)
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files_read_etc_files($1_lpr_t)
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# for test print
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files_read_usr_files($1_lpr_t)
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#Added to cover read_content macro
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files_list_home($1_lpr_t)
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files_read_generic_tmp_files($1_lpr_t)
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fs_getattr_xattr_fs($1_lpr_t)
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# Access the terminal.
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term_use_controlling_term($1_lpr_t)
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term_use_generic_pty($1_lpr_t)
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libs_use_ld_so($1_lpr_t)
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libs_use_shared_libs($1_lpr_t)
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miscfiles_read_localization($1_lpr_t)
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sysnet_read_config($1_lpr_t)
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userdom_read_user_tmp_symlinks($1,$1_lpr_t)
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# Write to the user domain tty.
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userdom_use_user_terminals($1,$1_lpr_t)
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tunable_policy(`read_default_t',`
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files_list_default($1_lpr_t)
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files_read_default_symlinks($1_lpr_t)
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files_read_default_files($1_lpr_t)
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')
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tunable_policy(`read_untrusted_content',`
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#list and read user specific untrusted content
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files_list_home($1_lpr_t)
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userdom_list_user_home($1,$1_lpr_t)
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userdom_read_user_untrusted_content_files($1,$1_lpr_t)
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#list and read user specific temporary untrusted content
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files_list_tmp($1_lpr_t)
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userdom_read_user_tmp_untrusted_content_files($1,$1_lpr_t)
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')
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tunable_policy(`use_nfs_home_dirs',`
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files_list_home($1_lpr_t)
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fs_list_auto_mountpoints($1_lpr_t)
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fs_read_nfs_files($1_lpr_t)
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fs_read_nfs_symlinks($1_lpr_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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files_list_home($1_lpr_t)
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fs_list_auto_mountpoints($1_lpr_t)
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fs_read_cifs_files($1_lpr_t)
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fs_read_cifs_symlinks($1_lpr_t)
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')
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optional_policy(`cups',`
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cups_read_config($1_lpr_t)
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cups_tcp_connect($1_lpr_t)
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cups_read_config($2)
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cups_tcp_connect($2)
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')
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optional_policy(`logging',`
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logging_send_syslog_msg($1_lpr_t)
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')
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optional_policy(`nscd',`
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nscd_use_socket($1_lpr_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind($1_lpr_t)
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')
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ifdef(`TODO',`
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optional_policy(`xdm', `
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allow $1_lpr_t xdm_t:fd use;
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allow $1_lpr_t xdm_var_run_t:dir search;
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allow $1_lpr_t xdm_t:fifo_file { getattr read write ioctl };
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')
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') dnl end TODO
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')
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#######################################
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## <summary>
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## The administrative functions template for the lpd module.
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## </summary>
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## <desc>
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## <p>
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## This template creates rules for administrating the ldp service,
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## allowing the specified user to manage lpr files.
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## </p>
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## </desc>
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## <param name="userdomain_prefix">
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## The prefix of the user domain (e.g., user
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## is the prefix for user_t).
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## </param>
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#
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template(`lpr_admin_template',`
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gen_require(`
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type $1_lpr_t;
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')
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userdom_read_all_user_files($1_lpr_t)
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# Allow per user lpr domain read acces for specific user.
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tunable_policy(`read_untrusted_content',`
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userdom_read_all_untrusted_content($1_lpr_t)
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userdom_read_all_tmp_untrusted_content($1_lpr_t)
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')
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')
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########################################
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## <summary>
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## Execute lpd in the lpd domain.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`lpd_domtrans_checkpc',`
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gen_require(`
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type checkpc_t, checkpc_exec_t;
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')
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domain_auto_trans($1,checkpc_exec_t,checkpc_t)
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allow $1 checkpc_t:fd use;
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allow checkpc_t $1:fd use;
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allow checkpc_t $1:fifo_file rw_file_perms;
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allow checkpc_t $1:process sigchld;
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')
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########################################
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## <summary>
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## Execute amrecover in the lpd domain, and
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## allow the specified role the lpd domain.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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## <param name="role">
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## The role to be allowed the lpd domain.
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## </param>
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## <param name="terminal">
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## The type of the terminal allow the lpd domain to use.
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## </param>
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#
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interface(`lpd_run_checkpc',`
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gen_require(`
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type checkpc_t;
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')
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lpd_domtrans_checkpc($1)
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role $2 types checkpc_t;
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allow checkpc_t $3:chr_file rw_term_perms;
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')
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########################################
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## <summary>
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## List the contents of the printer spool directories.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`lpd_list_spool',`
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gen_require(`
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type print_spool_t;
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')
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files_search_spool($1)
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allow $1 print_spool_t:dir list_dir_perms;
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')
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########################################
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## <summary>
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## Create, read, write, and delete printer spool files.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`lpd_manage_spool',`
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gen_require(`
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type print_spool_t;
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')
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files_search_spool($1)
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# cjp: cups wants setattr
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allow $1 print_spool_t:dir { rw_dir_perms setattr };
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allow $1 print_spool_t:file manage_file_perms;
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')
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########################################
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## <summary>
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## List the contents of the printer spool directories.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`lpd_read_config',`
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gen_require(`
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type printconf_t;
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')
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allow $1 printconf_t:dir list_dir_perms;
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allow $1 printconf_t:file r_file_perms;
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')
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