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.
340 lines
9.9 KiB
Plaintext
340 lines
9.9 KiB
Plaintext
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policy_module(dpkg,1.1.2)
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########################################
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#
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# Declarations
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#
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type dpkg_t;
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type dpkg_exec_t;
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# dpkg can start/stop services
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init_system_domain(dpkg_t,dpkg_exec_t)
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# dpkg can change file labels, roles, IO
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domain_obj_id_change_exemption(dpkg_t)
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domain_role_change_exemption(dpkg_t)
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domain_system_change_exemption(dpkg_t)
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domain_interactive_fd(dpkg_t)
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role system_r types dpkg_t;
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# lockfile
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type dpkg_lock_t;
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files_type(dpkg_lock_t)
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type dpkg_tmp_t;
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files_tmp_file(dpkg_tmp_t)
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type dpkg_tmpfs_t;
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files_tmpfs_file(dpkg_tmpfs_t)
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# status files
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type dpkg_var_lib_t alias var_lib_dpkg_t;
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files_type(dpkg_var_lib_t)
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# package scripts
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type dpkg_script_t;
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domain_type(dpkg_script_t)
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domain_entry_file(dpkg_t, dpkg_var_lib_t)
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corecmd_shell_entry_type(dpkg_script_t)
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domain_obj_id_change_exemption(dpkg_script_t)
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domain_system_change_exemption(dpkg_script_t)
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domain_interactive_fd(dpkg_script_t)
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role system_r types dpkg_script_t;
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type dpkg_script_tmp_t;
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files_tmp_file(dpkg_script_tmp_t)
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type dpkg_script_tmpfs_t;
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files_tmpfs_file(dpkg_script_tmpfs_t)
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########################################
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#
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# dpkg Local policy
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#
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allow dpkg_t self:capability { chown dac_override fowner fsetid setgid setuid kill sys_tty_config sys_nice sys_resource mknod linux_immutable };
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allow dpkg_t self:process { setpgid fork getsched setfscreate };
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allow dpkg_t self:fd use;
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allow dpkg_t self:fifo_file rw_fifo_file_perms;
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allow dpkg_t self:unix_dgram_socket create_socket_perms;
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allow dpkg_t self:unix_stream_socket rw_stream_socket_perms;
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allow dpkg_t self:unix_dgram_socket sendto;
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allow dpkg_t self:unix_stream_socket connectto;
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allow dpkg_t self:udp_socket { connect create_socket_perms };
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allow dpkg_t self:tcp_socket create_stream_socket_perms;
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allow dpkg_t self:shm create_shm_perms;
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allow dpkg_t self:sem create_sem_perms;
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allow dpkg_t self:msgq create_msgq_perms;
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allow dpkg_t self:msg { send receive };
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allow dpkg_t dpkg_lock_t:file manage_file_perms;
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manage_dirs_pattern(dpkg_t,dpkg_tmp_t,dpkg_tmp_t)
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manage_files_pattern(dpkg_t,dpkg_tmp_t,dpkg_tmp_t)
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files_tmp_filetrans(dpkg_t, dpkg_tmp_t, { file dir })
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manage_dirs_pattern(dpkg_t,dpkg_tmpfs_t,dpkg_tmpfs_t)
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manage_files_pattern(dpkg_t,dpkg_tmpfs_t,dpkg_tmpfs_t)
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manage_lnk_files_pattern(dpkg_t,dpkg_tmpfs_t,dpkg_tmpfs_t)
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manage_sock_files_pattern(dpkg_t,dpkg_tmpfs_t,dpkg_tmpfs_t)
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manage_fifo_files_pattern(dpkg_t,dpkg_tmpfs_t,dpkg_tmpfs_t)
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fs_tmpfs_filetrans(dpkg_t,dpkg_tmpfs_t,{ dir file lnk_file sock_file fifo_file })
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# Access /var/lib/dpkg files
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manage_files_pattern(dpkg_t,dpkg_var_lib_t,dpkg_var_lib_t)
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files_var_lib_filetrans(dpkg_t,dpkg_var_lib_t,dir)
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kernel_read_system_state(dpkg_t)
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kernel_read_kernel_sysctls(dpkg_t)
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corecmd_exec_all_executables(dpkg_t)
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# TODO: do we really need all networking?
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corenet_all_recvfrom_unlabeled(dpkg_t)
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corenet_all_recvfrom_netlabel(dpkg_t)
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corenet_tcp_sendrecv_all_if(dpkg_t)
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corenet_raw_sendrecv_all_if(dpkg_t)
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corenet_udp_sendrecv_all_if(dpkg_t)
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corenet_tcp_sendrecv_all_nodes(dpkg_t)
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corenet_raw_sendrecv_all_nodes(dpkg_t)
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corenet_udp_sendrecv_all_nodes(dpkg_t)
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corenet_tcp_sendrecv_all_ports(dpkg_t)
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corenet_udp_sendrecv_all_ports(dpkg_t)
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corenet_tcp_connect_all_ports(dpkg_t)
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corenet_sendrecv_all_client_packets(dpkg_t)
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dev_list_sysfs(dpkg_t)
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dev_list_usbfs(dpkg_t)
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dev_read_urand(dpkg_t)
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#devices_manage_all_device_types(dpkg_t)
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domain_read_all_domains_state(dpkg_t)
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domain_getattr_all_domains(dpkg_t)
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domain_dontaudit_ptrace_all_domains(dpkg_t)
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domain_use_interactive_fds(dpkg_t)
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domain_dontaudit_getattr_all_pipes(dpkg_t)
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domain_dontaudit_getattr_all_tcp_sockets(dpkg_t)
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domain_dontaudit_getattr_all_udp_sockets(dpkg_t)
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domain_dontaudit_getattr_all_packet_sockets(dpkg_t)
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domain_dontaudit_getattr_all_raw_sockets(dpkg_t)
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domain_dontaudit_getattr_all_stream_sockets(dpkg_t)
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domain_dontaudit_getattr_all_dgram_sockets(dpkg_t)
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fs_manage_nfs_dirs(dpkg_t)
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fs_manage_nfs_files(dpkg_t)
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fs_manage_nfs_symlinks(dpkg_t)
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fs_getattr_all_fs(dpkg_t)
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fs_search_auto_mountpoints(dpkg_t)
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mls_file_read_up(dpkg_t)
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mls_file_write_down(dpkg_t)
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mls_file_upgrade(dpkg_t)
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selinux_get_fs_mount(dpkg_t)
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selinux_validate_context(dpkg_t)
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selinux_compute_access_vector(dpkg_t)
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selinux_compute_create_context(dpkg_t)
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selinux_compute_relabel_context(dpkg_t)
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selinux_compute_user_contexts(dpkg_t)
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storage_raw_write_fixed_disk(dpkg_t)
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# for installing kernel packages
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storage_raw_read_fixed_disk(dpkg_t)
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term_list_ptys(dpkg_t)
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auth_relabel_all_files_except_shadow(dpkg_t)
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auth_manage_all_files_except_shadow(dpkg_t)
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auth_dontaudit_read_shadow(dpkg_t)
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files_exec_etc_files(dpkg_t)
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init_domtrans_script(dpkg_t)
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libs_use_ld_so(dpkg_t)
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libs_use_shared_libs(dpkg_t)
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libs_exec_ld_so(dpkg_t)
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libs_exec_lib_files(dpkg_t)
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libs_domtrans_ldconfig(dpkg_t)
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logging_send_syslog_msg(dpkg_t)
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# allow compiling and loading new policy
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seutil_manage_src_policy(dpkg_t)
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seutil_manage_bin_policy(dpkg_t)
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sysnet_read_config(dpkg_t)
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userdom_use_unpriv_users_fds(dpkg_t)
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# transition to dpkg script:
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dpkg_domtrans_script(dpkg_t)
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# since the scripts aren't labeled correctly yet...
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allow dpkg_t dpkg_var_lib_t:file execute;
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ifdef(`targeted_policy',`
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unconfined_domain(dpkg_t)
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')
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# TODO: allow?
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#optional_policy(`
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# cron_system_entry(dpkg_t,dpkg_exec_t)
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#')
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optional_policy(`
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nis_use_ypbind(dpkg_t)
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')
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# TODO: the following was copied from dpkg_script_t, and could probably
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# be removed again when dpkg_script_t is actually used...
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domain_signal_all_domains(dpkg_t)
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domain_signull_all_domains(dpkg_t)
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files_read_etc_runtime_files(dpkg_t)
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files_exec_usr_files(dpkg_t)
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miscfiles_read_localization(dpkg_t)
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modutils_domtrans_depmod(dpkg_t)
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modutils_domtrans_insmod(dpkg_t)
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seutil_domtrans_loadpolicy(dpkg_t)
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seutil_domtrans_setfiles(dpkg_t)
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userdom_use_all_users_fds(dpkg_t)
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optional_policy(`
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mta_send_mail(dpkg_t)
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')
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optional_policy(`
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usermanage_domtrans_groupadd(dpkg_t)
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usermanage_domtrans_useradd(dpkg_t)
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')
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########################################
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#
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# dpkg-script Local policy
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#
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# TODO: actually use dpkg_script_t
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allow dpkg_script_t self:capability { chown dac_override dac_read_search fowner fsetid setgid setuid ipc_lock sys_chroot sys_nice mknod kill };
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allow dpkg_script_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
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allow dpkg_script_t self:fd use;
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allow dpkg_script_t self:fifo_file rw_file_perms;
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allow dpkg_script_t self:unix_dgram_socket create_socket_perms;
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allow dpkg_script_t self:unix_stream_socket rw_stream_socket_perms;
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allow dpkg_script_t self:unix_dgram_socket sendto;
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allow dpkg_script_t self:unix_stream_socket connectto;
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allow dpkg_script_t self:shm create_shm_perms;
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allow dpkg_script_t self:sem create_sem_perms;
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allow dpkg_script_t self:msgq create_msgq_perms;
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allow dpkg_script_t self:msg { send receive };
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allow dpkg_script_t dpkg_tmp_t:file r_file_perms;
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allow dpkg_script_t dpkg_script_tmp_t:dir { manage_dir_perms mounton };
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allow dpkg_script_t dpkg_script_tmp_t:file manage_file_perms;
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files_tmp_filetrans(dpkg_script_t, dpkg_script_tmp_t, { file dir })
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allow dpkg_script_t dpkg_script_tmpfs_t:dir manage_dir_perms;
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allow dpkg_script_t dpkg_script_tmpfs_t:file manage_file_perms;
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allow dpkg_script_t dpkg_script_tmpfs_t:lnk_file create_lnk_perms;
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allow dpkg_script_t dpkg_script_tmpfs_t:sock_file manage_file_perms;
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allow dpkg_script_t dpkg_script_tmpfs_t:fifo_file manage_file_perms;
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fs_tmpfs_filetrans(dpkg_script_t,dpkg_script_tmpfs_t,{ dir file lnk_file sock_file fifo_file })
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kernel_read_kernel_sysctls(dpkg_script_t)
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kernel_read_system_state(dpkg_script_t)
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corecmd_exec_all_executables(dpkg_script_t)
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dev_list_sysfs(dpkg_script_t)
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# ideally we would not need this
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dev_manage_generic_blk_files(dpkg_script_t)
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dev_manage_generic_chr_files(dpkg_script_t)
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dev_manage_all_blk_files(dpkg_script_t)
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dev_manage_all_chr_files(dpkg_script_t)
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domain_read_all_domains_state(dpkg_script_t)
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domain_getattr_all_domains(dpkg_script_t)
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domain_dontaudit_ptrace_all_domains(dpkg_script_t)
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domain_use_interactive_fds(dpkg_script_t)
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domain_signal_all_domains(dpkg_script_t)
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domain_signull_all_domains(dpkg_script_t)
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files_exec_etc_files(dpkg_script_t)
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files_read_etc_runtime_files(dpkg_script_t)
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files_exec_usr_files(dpkg_script_t)
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fs_manage_nfs_files(dpkg_script_t)
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fs_getattr_nfs(dpkg_script_t)
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# why is this not using mount?
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fs_getattr_xattr_fs(dpkg_script_t)
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fs_mount_xattr_fs(dpkg_script_t)
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fs_unmount_xattr_fs(dpkg_script_t)
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fs_search_auto_mountpoints(dpkg_script_t)
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mls_file_read_up(dpkg_script_t)
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mls_file_write_down(dpkg_script_t)
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selinux_get_fs_mount(dpkg_script_t)
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selinux_validate_context(dpkg_script_t)
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selinux_compute_access_vector(dpkg_script_t)
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selinux_compute_create_context(dpkg_script_t)
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selinux_compute_relabel_context(dpkg_script_t)
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selinux_compute_user_contexts(dpkg_script_t)
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storage_raw_read_fixed_disk(dpkg_script_t)
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storage_raw_write_fixed_disk(dpkg_script_t)
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term_getattr_unallocated_ttys(dpkg_script_t)
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term_list_ptys(dpkg_script_t)
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term_use_all_terms(dpkg_script_t)
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auth_dontaudit_getattr_shadow(dpkg_script_t)
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# ideally we would not need this
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auth_manage_all_files_except_shadow(dpkg_script_t)
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init_domtrans_script(dpkg_script_t)
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libs_use_ld_so(dpkg_script_t)
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libs_use_shared_libs(dpkg_script_t)
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libs_exec_ld_so(dpkg_script_t)
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libs_exec_lib_files(dpkg_script_t)
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libs_domtrans_ldconfig(dpkg_script_t)
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logging_send_syslog_msg(dpkg_script_t)
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miscfiles_read_localization(dpkg_script_t)
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modutils_domtrans_depmod(dpkg_script_t)
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modutils_domtrans_insmod(dpkg_script_t)
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seutil_domtrans_loadpolicy(dpkg_script_t)
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seutil_domtrans_setfiles(dpkg_script_t)
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userdom_use_all_users_fds(dpkg_script_t)
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ifdef(`distro_redhat',`
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unconfined_domain(dpkg_script_t)
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')
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ifdef(`targeted_policy',`
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unconfined_domain(dpkg_script_t)
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',`
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optional_policy(`
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bootloader_domtrans(dpkg_script_t)
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')
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')
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tunable_policy(`allow_execmem',`
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allow dpkg_script_t self:process execmem;
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')
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optional_policy(`
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mta_send_mail(dpkg_script_t)
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')
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optional_policy(`
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nis_use_ypbind(dpkg_script_t)
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')
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optional_policy(`
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usermanage_domtrans_groupadd(dpkg_script_t)
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usermanage_domtrans_useradd(dpkg_script_t)
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')
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