1900668638
The latest revision of the labeled policy patches which enable both labeled and unlabeled policy support for NetLabel. This revision takes into account Chris' feedback from the first version and reduces the number of interface calls in each domain down to two at present: one for unlabeled access, one for NetLabel access. The older, transport layer specific interfaces, are still present for use by third-party modules but are not used in the default policy modules. trunk: Use netmsg initial SID for MLS-only Netlabel packets, from Paul Moore. This patch changes the policy to use the netmsg initial SID as the "base" SID/context for NetLabel packets which only have MLS security attributes. Currently we use the unlabeled initial SID which makes it very difficult to distinquish between actual unlabeled packets and those packets which have MLS security attributes.
350 lines
8.5 KiB
Plaintext
350 lines
8.5 KiB
Plaintext
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policy_module(sysnetwork,1.3.1)
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########################################
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#
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# Declarations
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#
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# this is shared between dhcpc and dhcpd:
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type dhcp_etc_t;
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typealias dhcp_etc_t alias { etc_dhcp_t etc_dhcpc_t etc_dhcpd_t };
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files_config_file(dhcp_etc_t)
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# this is shared between dhcpc and dhcpd:
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type dhcp_state_t;
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files_type(dhcp_state_t)
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type dhcpc_t;
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type dhcpc_exec_t;
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init_daemon_domain(dhcpc_t,dhcpc_exec_t)
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role system_r types dhcpc_t;
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type dhcpc_state_t;
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files_type(dhcpc_state_t)
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type dhcpc_tmp_t;
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files_tmp_file(dhcpc_tmp_t)
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type dhcpc_var_run_t;
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files_pid_file(dhcpc_var_run_t)
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type ifconfig_t;
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type ifconfig_exec_t;
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init_system_domain(ifconfig_t, ifconfig_exec_t)
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role system_r types ifconfig_t;
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type net_conf_t alias resolv_conf_t;
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files_type(net_conf_t)
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########################################
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#
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# DHCP client local policy
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#
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allow dhcpc_t self:capability { dac_override fsetid net_admin net_raw net_bind_service sys_resource sys_tty_config };
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dontaudit dhcpc_t self:capability sys_tty_config;
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# for access("/etc/bashrc", X_OK) on Red Hat
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dontaudit dhcpc_t self:capability { dac_read_search sys_module };
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allow dhcpc_t self:process signal_perms;
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allow dhcpc_t self:fifo_file rw_file_perms;
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allow dhcpc_t self:tcp_socket create_stream_socket_perms;
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allow dhcpc_t self:udp_socket create_socket_perms;
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allow dhcpc_t self:packet_socket create_socket_perms;
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allow dhcpc_t self:netlink_route_socket { create_socket_perms nlmsg_read };
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allow dhcpc_t dhcp_etc_t:dir list_dir_perms;
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read_lnk_files_pattern(dhcpc_t,dhcp_etc_t,dhcp_etc_t)
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exec_files_pattern(dhcpc_t,dhcp_etc_t,dhcp_etc_t)
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allow dhcpc_t dhcp_state_t:file { getattr read };
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manage_files_pattern(dhcpc_t,dhcpc_state_t,dhcpc_state_t)
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filetrans_pattern(dhcpc_t,dhcp_state_t,dhcpc_state_t,file)
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# create pid file
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manage_files_pattern(dhcpc_t,dhcpc_var_run_t,dhcpc_var_run_t)
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files_pid_filetrans(dhcpc_t,dhcpc_var_run_t,file)
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# Allow read/write to /etc/resolv.conf and /etc/ntp.conf. Note that any files
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# in /etc created by dhcpcd will be labelled net_conf_t.
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allow dhcpc_t net_conf_t:file manage_file_perms;
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files_etc_filetrans(dhcpc_t,net_conf_t,file)
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# create temp files
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manage_dirs_pattern(dhcpc_t,dhcpc_tmp_t,dhcpc_tmp_t)
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manage_files_pattern(dhcpc_t,dhcpc_tmp_t,dhcpc_tmp_t)
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files_tmp_filetrans(dhcpc_t, dhcpc_tmp_t, { file dir })
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can_exec(dhcpc_t, dhcpc_exec_t)
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# transition to ifconfig
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domtrans_pattern(dhcpc_t, ifconfig_exec_t, ifconfig_t)
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kernel_read_system_state(dhcpc_t)
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kernel_read_network_state(dhcpc_t)
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kernel_read_kernel_sysctls(dhcpc_t)
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kernel_use_fds(dhcpc_t)
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corenet_all_recvfrom_unlabeled(dhcpc_t)
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corenet_all_recvfrom_netlabel(dhcpc_t)
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corenet_tcp_sendrecv_all_if(dhcpc_t)
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corenet_raw_sendrecv_all_if(dhcpc_t)
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corenet_udp_sendrecv_all_if(dhcpc_t)
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corenet_tcp_sendrecv_all_nodes(dhcpc_t)
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corenet_raw_sendrecv_all_nodes(dhcpc_t)
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corenet_udp_sendrecv_all_nodes(dhcpc_t)
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corenet_tcp_sendrecv_all_ports(dhcpc_t)
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corenet_udp_sendrecv_all_ports(dhcpc_t)
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corenet_tcp_bind_all_nodes(dhcpc_t)
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corenet_udp_bind_all_nodes(dhcpc_t)
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corenet_udp_bind_dhcpc_port(dhcpc_t)
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corenet_tcp_connect_all_ports(dhcpc_t)
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corenet_sendrecv_dhcpd_client_packets(dhcpc_t)
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corenet_sendrecv_dhcpc_server_packets(dhcpc_t)
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dev_read_sysfs(dhcpc_t)
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# for SSP:
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dev_read_urand(dhcpc_t)
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fs_getattr_all_fs(dhcpc_t)
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fs_search_auto_mountpoints(dhcpc_t)
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term_dontaudit_use_all_user_ttys(dhcpc_t)
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term_dontaudit_use_all_user_ptys(dhcpc_t)
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term_dontaudit_use_unallocated_ttys(dhcpc_t)
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term_dontaudit_use_generic_ptys(dhcpc_t)
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corecmd_exec_bin(dhcpc_t)
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corecmd_exec_shell(dhcpc_t)
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domain_use_interactive_fds(dhcpc_t)
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domain_dontaudit_list_all_domains_state(dhcpc_t)
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files_read_etc_files(dhcpc_t)
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files_read_etc_runtime_files(dhcpc_t)
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files_search_home(dhcpc_t)
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files_search_var_lib(dhcpc_t)
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files_dontaudit_search_locks(dhcpc_t)
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init_rw_utmp(dhcpc_t)
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logging_send_syslog_msg(dhcpc_t)
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libs_use_ld_so(dhcpc_t)
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libs_use_shared_libs(dhcpc_t)
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miscfiles_read_localization(dhcpc_t)
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modutils_domtrans_insmod(dhcpc_t)
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userdom_dontaudit_search_staff_home_dirs(dhcpc_t)
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ifdef(`distro_redhat', `
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files_exec_etc_files(dhcpc_t)
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')
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ifdef(`targeted_policy', `
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term_dontaudit_use_unallocated_ttys(dhcpc_t)
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term_dontaudit_use_generic_ptys(dhcpc_t)
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files_dontaudit_read_root_files(dhcpc_t)
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')
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optional_policy(`
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consoletype_domtrans(dhcpc_t)
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')
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optional_policy(`
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gen_require(`
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class dbus send_msg;
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')
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allow dhcpc_t self:dbus send_msg;
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init_dbus_chat_script(dhcpc_t)
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dbus_system_bus_client_template(dhcpc,dhcpc_t)
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dbus_connect_system_bus(dhcpc_t)
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dbus_send_system_bus(dhcpc_t)
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optional_policy(`
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networkmanager_dbus_chat(dhcpc_t)
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')
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')
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optional_policy(`
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hostname_domtrans(dhcpc_t)
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')
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optional_policy(`
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hotplug_getattr_config_dirs(dhcpc_t)
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hotplug_search_config(dhcpc_t)
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ifdef(`distro_redhat',`
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logging_domtrans_syslog(dhcpc_t)
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')
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')
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# for the dhcp client to run ping to check IP addresses
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optional_policy(`
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netutils_domtrans_ping(dhcpc_t)
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netutils_domtrans(dhcpc_t)
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',`
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allow dhcpc_t self:capability setuid;
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allow dhcpc_t self:rawip_socket create_socket_perms;
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')
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optional_policy(`
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nis_use_ypbind(dhcpc_t)
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nis_signal_ypbind(dhcpc_t)
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nis_read_ypbind_pid(dhcpc_t)
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nis_delete_ypbind_pid(dhcpc_t)
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# dhclient sometimes starts ypbind
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init_exec_script_files(dhcpc_t)
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nis_domtrans_ypbind(dhcpc_t)
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')
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optional_policy(`
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nscd_domtrans(dhcpc_t)
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nscd_read_pid(dhcpc_t)
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')
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optional_policy(`
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# dhclient sometimes starts ntpd
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init_exec_script_files(dhcpc_t)
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ntp_domtrans(dhcpc_t)
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')
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optional_policy(`
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pcmcia_stub(dhcpc_t)
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dev_rw_cardmgr(dhcpc_t)
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')
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optional_policy(`
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seutil_sigchld_newrole(dhcpc_t)
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seutil_dontaudit_search_config(dhcpc_t)
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')
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optional_policy(`
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udev_read_db(dhcpc_t)
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')
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optional_policy(`
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userdom_use_all_users_fds(dhcpc_t)
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')
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optional_policy(`
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kernel_read_xen_state(dhcpc_t)
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kernel_write_xen_state(dhcpc_t)
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xen_append_log(dhcpc_t)
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xen_dontaudit_rw_unix_stream_sockets(dhcpc_t)
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')
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########################################
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#
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# Ifconfig local policy
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#
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allow ifconfig_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execheap execstack };
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allow ifconfig_t self:capability { net_raw net_admin sys_tty_config };
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dontaudit ifconfig_t self:capability sys_module;
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allow ifconfig_t self:fd use;
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allow ifconfig_t self:fifo_file rw_fifo_file_perms;
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allow ifconfig_t self:sock_file read_sock_file_perms;
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allow ifconfig_t self:socket create_socket_perms;
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allow ifconfig_t self:unix_dgram_socket create_socket_perms;
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allow ifconfig_t self:unix_stream_socket create_stream_socket_perms;
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allow ifconfig_t self:unix_dgram_socket sendto;
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allow ifconfig_t self:unix_stream_socket connectto;
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allow ifconfig_t self:shm create_shm_perms;
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allow ifconfig_t self:sem create_sem_perms;
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allow ifconfig_t self:msgq create_msgq_perms;
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allow ifconfig_t self:msg { send receive };
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# Create UDP sockets, necessary when called from dhcpc
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allow ifconfig_t self:udp_socket create_socket_perms;
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# for /sbin/ip
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allow ifconfig_t self:packet_socket create_socket_perms;
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allow ifconfig_t self:netlink_route_socket create_netlink_socket_perms;
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allow ifconfig_t self:netlink_xfrm_socket { create_netlink_socket_perms nlmsg_read };
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allow ifconfig_t self:tcp_socket { create ioctl };
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files_read_etc_files(ifconfig_t);
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kernel_use_fds(ifconfig_t)
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kernel_read_system_state(ifconfig_t)
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kernel_read_network_state(ifconfig_t)
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kernel_search_network_sysctl(ifconfig_t)
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kernel_rw_net_sysctls(ifconfig_t)
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corenet_rw_tun_tap_dev(ifconfig_t)
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dev_read_sysfs(ifconfig_t)
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# for IPSEC setup:
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dev_read_urand(ifconfig_t)
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fs_getattr_xattr_fs(ifconfig_t)
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fs_search_auto_mountpoints(ifconfig_t)
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term_dontaudit_use_all_user_ttys(ifconfig_t)
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term_dontaudit_use_all_user_ptys(ifconfig_t)
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domain_use_interactive_fds(ifconfig_t)
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files_dontaudit_read_root_files(ifconfig_t)
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init_use_fds(ifconfig_t)
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init_use_script_ptys(ifconfig_t)
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libs_use_ld_so(ifconfig_t)
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libs_use_shared_libs(ifconfig_t)
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libs_read_lib_files(ifconfig_t)
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logging_send_syslog_msg(ifconfig_t)
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miscfiles_read_localization(ifconfig_t)
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modutils_domtrans_insmod(ifconfig_t)
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seutil_use_runinit_fds(ifconfig_t)
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userdom_use_all_users_fds(ifconfig_t)
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ifdef(`hide_broken_symptoms',`
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optional_policy(`
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dev_dontaudit_rw_cardmgr(ifconfig_t)
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')
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optional_policy(`
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udev_dontaudit_rw_dgram_sockets(ifconfig_t)
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')
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')
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ifdef(`targeted_policy',`
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term_use_generic_ptys(ifconfig_t)
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term_use_unallocated_ttys(ifconfig_t)
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optional_policy(`
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unconfined_dontaudit_read_pipes(ifconfig_t)
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')
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')
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optional_policy(`
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netutils_domtrans(dhcpc_t)
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')
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optional_policy(`
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nis_use_ypbind(ifconfig_t)
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')
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optional_policy(`
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ppp_use_fds(ifconfig_t)
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')
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optional_policy(`
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kernel_read_xen_state(ifconfig_t)
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kernel_write_xen_state(ifconfig_t)
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xen_append_log(ifconfig_t)
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xen_dontaudit_rw_unix_stream_sockets(ifconfig_t)
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')
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