policy/modules/services/cobbler.te

   1 policy_module(cobbler, 1.1.0)
   2
   3 ########################################
   4 #
   5 # Cobbler personal declarations.
   6 #
   7
   8 ## <desc>
   9 ##      <p>
  10 ##      Allow Cobbler to modify public files
  11 ##      used for public file transfer services.
  12 ##      </p>
  13 ## </desc>
  14 gen_tunable(cobbler_anon_write, false)
  15
  16 ## <desc>
  17 ##      <p>
  18 ##      Allow Cobbler to connect to the
  19 ##      network using TCP.
  20 ##      </p>
  21 ## </desc>
  22 gen_tunable(cobbler_can_network_connect, false)
  23
  24 ## <desc>
  25 ##      <p>
  26 ##      Allow Cobbler to access cifs file systems.
  27 ##      </p>
  28 ## </desc>
  29 gen_tunable(cobbler_use_cifs, false)
  30
  31 ## <desc>
  32 ##      <p>
  33 ##      Allow Cobbler to access nfs file systems.
  34 ##      </p>
  35 ## </desc>
  36 gen_tunable(cobbler_use_nfs, false)
  37
  38 type cobblerd_t;
  39 type cobblerd_exec_t;
  40 init_daemon_domain(cobblerd_t, cobblerd_exec_t)
  41
  42 type cobblerd_initrc_exec_t;
  43 init_script_file(cobblerd_initrc_exec_t)
  44
  45 type cobbler_etc_t;
  46 files_config_file(cobbler_etc_t)
  47
  48 type cobbler_var_log_t;
  49 logging_log_file(cobbler_var_log_t)
  50
  51 type cobbler_var_lib_t alias cobbler_content_t;
  52 files_type(cobbler_var_lib_t)
  53
  54 type cobbler_tmp_t;
  55 files_tmp_file(cobbler_tmp_t)
  56
  57 ########################################
  58 #
  59 # Cobbler personal policy.
  60 #
  61
  62 allow cobblerd_t self:capability { chown dac_override fowner fsetid sys_nice };
  63 dontaudit cobblerd_t self:capability sys_tty_config;
  64
  65 allow cobblerd_t self:process { getsched setsched signal };
  66 allow cobblerd_t self:fifo_file rw_fifo_file_perms;
  67 allow cobblerd_t self:netlink_route_socket create_netlink_socket_perms;
  68 allow cobblerd_t self:tcp_socket create_stream_socket_perms;
  69 allow cobblerd_t self:udp_socket create_socket_perms;
  70 allow cobblerd_t self:unix_dgram_socket create_socket_perms;
  71
  72 list_dirs_pattern(cobblerd_t, cobbler_etc_t, cobbler_etc_t)
  73 read_files_pattern(cobblerd_t, cobbler_etc_t, cobbler_etc_t)
  74
  75 # Something that runs in the cobberd_t domain tries to relabelfrom cobbler_var_lib_t dir to httpd_sys_content_t.
  76 dontaudit cobblerd_t cobbler_var_lib_t:dir relabel_dir_perms;
  77
  78 manage_dirs_pattern(cobblerd_t, cobbler_var_lib_t, cobbler_var_lib_t)
  79 manage_files_pattern(cobblerd_t, cobbler_var_lib_t, cobbler_var_lib_t)
  80 manage_lnk_files_pattern(cobblerd_t, cobbler_var_lib_t, cobbler_var_lib_t)
  81 files_var_lib_filetrans(cobblerd_t, cobbler_var_lib_t, { dir file lnk_file })
  82
  83 # Something really needs to write to cobbler.log. Ideally this should not be happening.
  84 allow cobblerd_t cobbler_var_log_t:file write;
  85
  86 append_files_pattern(cobblerd_t, cobbler_var_log_t, cobbler_var_log_t)
  87 create_files_pattern(cobblerd_t, cobbler_var_log_t, cobbler_var_log_t)
  88 read_files_pattern(cobblerd_t, cobbler_var_log_t, cobbler_var_log_t)
  89 setattr_files_pattern(cobblerd_t, cobbler_var_log_t, cobbler_var_log_t)
  90 logging_log_filetrans(cobblerd_t, cobbler_var_log_t, file)
  91
  92 manage_dirs_pattern(cobblerd_t, cobbler_tmp_t, cobbler_tmp_t)
  93 manage_files_pattern(cobblerd_t, cobbler_tmp_t, cobbler_tmp_t)
  94 files_tmp_filetrans(cobblerd_t, cobbler_tmp_t, { dir file })
  95
  96 kernel_read_system_state(cobblerd_t)
  97 kernel_dontaudit_search_network_state(cobblerd_t)
  98
  99 corecmd_exec_bin(cobblerd_t)
 100 corecmd_exec_shell(cobblerd_t)
 101
 102 corenet_all_recvfrom_netlabel(cobblerd_t)
 103 corenet_all_recvfrom_unlabeled(cobblerd_t)
 104 corenet_sendrecv_cobbler_server_packets(cobblerd_t)
 105 corenet_tcp_bind_cobbler_port(cobblerd_t)
 106 corenet_tcp_bind_generic_node(cobblerd_t)
 107 corenet_tcp_sendrecv_generic_if(cobblerd_t)
 108 corenet_tcp_sendrecv_generic_node(cobblerd_t)
 109 corenet_tcp_sendrecv_generic_port(cobblerd_t)
 110 corenet_tcp_sendrecv_cobbler_port(cobblerd_t)
 111 # sync and rsync to ftp and http are permitted by default, for any other media use cobbler_can_network_connect.
 112 corenet_tcp_connect_ftp_port(cobblerd_t)
 113 corenet_tcp_connect_all_ephemeral_ports(cobblerd_t)
 114 corenet_tcp_sendrecv_ftp_port(cobblerd_t)
 115 corenet_sendrecv_ftp_client_packets(cobblerd_t)
 116 corenet_tcp_connect_http_port(cobblerd_t)
 117 corenet_tcp_sendrecv_http_port(cobblerd_t)
 118 corenet_sendrecv_http_client_packets(cobblerd_t)
 119
 120 dev_read_urand(cobblerd_t)
 121
 122 domain_dontaudit_exec_all_entry_files(cobblerd_t)
 123 domain_dontaudit_read_all_domains_state(cobblerd_t)
 124
 125 files_read_etc_files(cobblerd_t)
 126 # mtab
 127 files_read_etc_runtime_files(cobblerd_t)
 128 files_read_usr_files(cobblerd_t)
 129 files_list_boot(cobblerd_t)
 130 files_read_boot_files(cobblerd_t)
 131 files_list_tmp(cobblerd_t)
 132
 133 # read from mounted images (install media)
 134 fs_read_iso9660_files(cobblerd_t)
 135
 136 init_dontaudit_read_all_script_files(cobblerd_t)
 137
 138 term_use_console(cobblerd_t)
 139
 140 logging_send_syslog_msg(cobblerd_t)
 141
 142 miscfiles_read_localization(cobblerd_t)
 143 miscfiles_read_public_files(cobblerd_t)
 144
 145 selinux_dontaudit_read_fs(cobblerd_t)
 146
 147 sysnet_read_config(cobblerd_t)
 148 sysnet_rw_dhcp_config(cobblerd_t)
 149 sysnet_write_config(cobblerd_t)
 150
 151 userdom_dontaudit_use_user_terminals(cobblerd_t)
 152 userdom_dontaudit_search_user_home_dirs(cobblerd_t)
 153 userdom_dontaudit_search_admin_dir(cobblerd_t)
 154
 155 tunable_policy(`cobbler_anon_write',`
 156         miscfiles_manage_public_files(cobblerd_t)
 157 ')
 158
 159 tunable_policy(`cobbler_can_network_connect',`
 160         corenet_tcp_connect_all_ports(cobblerd_t)
 161         corenet_tcp_sendrecv_all_ports(cobblerd_t)
 162         corenet_sendrecv_all_client_packets(cobblerd_t)
 163 ')
 164
 165 tunable_policy(`cobbler_use_cifs',`
 166         fs_manage_cifs_dirs(cobblerd_t)
 167         fs_manage_cifs_files(cobblerd_t)
 168         fs_manage_cifs_symlinks(cobblerd_t)
 169 ')
 170
 171 tunable_policy(`cobbler_use_nfs',`
 172         fs_manage_nfs_dirs(cobblerd_t)
 173         fs_manage_nfs_files(cobblerd_t)
 174         fs_manage_nfs_symlinks(cobblerd_t)
 175 ')
 176
 177 optional_policy(`
 178         # Cobbler traverses /var/www to get to /var/www/cobbler/*
 179         apache_search_sys_content(cobblerd_t)
 180 ')
 181
 182 optional_policy(`
 183         bind_read_config(cobblerd_t)
 184         bind_write_config(cobblerd_t)
 185         bind_domtrans_ndc(cobblerd_t)
 186         bind_domtrans(cobblerd_t)
 187         bind_initrc_domtrans(cobblerd_t)
 188         bind_systemctl(cobblerd_t)
 189         bind_manage_zone(cobblerd_t)
 190 ')
 191
 192 optional_policy(`
 193         certmaster_exec(cobblerd_t)
 194 ')
 195
 196 optional_policy(`
 197         dhcpd_domtrans(cobblerd_t)
 198         dhcpd_initrc_domtrans(cobblerd_t)
 199         dhcpd_systemctl(cobblerd_t)
 200 ')
 201
 202 optional_policy(`
 203         dnsmasq_domtrans(cobblerd_t)
 204         dnsmasq_initrc_domtrans(cobblerd_t)
 205         dnsmasq_write_config(cobblerd_t)
 206         dnsmasq_systemctl(cobblerd_t)
 207 ')
 208
 209 optional_policy(`
 210         puppet_domtrans_puppetca(cobblerd_t)
 211 ')
 212
 213 optional_policy(`
 214         rpm_exec(cobblerd_t)
 215 ')
 216
 217 optional_policy(`
 218         rsync_exec(cobblerd_t)
 219         rsync_manage_config(cobblerd_t)
 220         # cobbler creates /etc/rsync.conf if its not there.
 221         rsync_filetrans_config(cobblerd_t, file)
 222 ')
 223
 224 optional_policy(`
 225         # Cobbler puts objects in both /var/lib/tftpdir as well as /var/lib/tftpdir/images.
 226         # tftp_manage_rw_content(cobblerd_t) can be used instead if:
 227         # 1. cobbler package installs /var/lib/tftpdir/images.
 228         # 2. no FILES in /var/lib/TFTPDIR are hard linked.
 229         # Cobbler also creates other directories in /var/lib/tftpdir (etc, s390x, ppc, pxelinux.cfg)
 230         # are any of those hard linked?
 231         tftp_filetrans_tftpdir(cobblerd_t, cobbler_var_lib_t, { dir file })
 232 ')
 233
 234 ########################################
 235 #
 236 # Cobbler web local policy.
 237 #
 238
 239 apache_content_template(cobbler)
 240 list_dirs_pattern(cobblerd_t, httpd_cobbler_content_t, httpd_cobbler_content_t)
 241 manage_dirs_pattern(cobblerd_t, httpd_cobbler_content_rw_t, httpd_cobbler_content_rw_t)
 242 manage_files_pattern(cobblerd_t, httpd_cobbler_content_rw_t, httpd_cobbler_content_rw_t)