286 lines
7.9 KiB
Plaintext
286 lines
7.9 KiB
Plaintext
template(`ssh_per_userdomain_template',`
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# Derived domain based on the calling user domain and the program.
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type $1_ssh_t; #, privlog, nscd_client_domain;
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domain_type($1_ssh_t)
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type $1_home_ssh_t; #, $1_file_type;
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files_file_type($1_home_ssh_t)
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role $1_r types $1_ssh_t;
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# Transition from the user domain to the derived domain.
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domain_auto_trans($1_t, ssh_exec_t, $1_ssh_t)
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libs_use_ld_so($1_ssh_t)
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libs_use_shared_libs($1_ssh_t)
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tunable_policy(`use_nfs_home_dirs',`
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fs_manage_nfs_dirs($1_ssh_t)
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fs_manage_nfs_files($1_ssh_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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fs_manage_cifs_dirs($1_ssh_t)
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fs_manage_cifs_files($1_ssh_t)
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')
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ifdef(`TODO',`
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# Grant permissions within the domain.
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general_domain_access($1_ssh_t)
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allow $1_ssh_t autofs_t:dir { search getattr };
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# Use descriptors created by sshd
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allow $1_ssh_t privfd:fd use;
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read_locale($1_ssh_t)
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# Get attributes of file systems.
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allow $1_ssh_t fs_type:filesystem getattr;
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base_file_read_access($1_ssh_t)
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# Read /var.
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allow $1_ssh_t var_t:dir r_dir_perms;
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allow $1_ssh_t var_t:notdevfile_class_set r_file_perms;
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# Read /var/run, /var/log.
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allow $1_ssh_t var_run_t:dir r_dir_perms;
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allow $1_ssh_t var_run_t:{ file lnk_file } r_file_perms;
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allow $1_ssh_t var_log_t:dir r_dir_perms;
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allow $1_ssh_t var_log_t:{ file lnk_file } r_file_perms;
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# Read /etc.
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allow $1_ssh_t etc_t:dir r_dir_perms;
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allow $1_ssh_t etc_t:notdevfile_class_set r_file_perms;
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allow $1_ssh_t etc_runtime_t:{ file lnk_file } r_file_perms;
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# Read /dev directories and any symbolic links.
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allow $1_ssh_t device_t:dir r_dir_perms;
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allow $1_ssh_t device_t:lnk_file r_file_perms;
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# Read /dev/urandom.
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allow $1_ssh_t urandom_device_t:chr_file r_file_perms;
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# Read and write /dev/null.
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allow $1_ssh_t { null_device_t zero_device_t }:chr_file rw_file_perms;
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# Grant permissions needed to create TCP and UDP sockets and
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# to access the network.
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can_network_client_tcp($1_ssh_t)
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can_resolve($1_ssh_t)
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can_ypbind($1_ssh_t)
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can_kerberos($1_ssh_t)
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# for port forwarding
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if (user_tcp_server) {
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allow $1_ssh_t port_t:tcp_socket name_bind;
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}
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# Use capabilities.
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allow $1_ssh_t self:capability { setuid setgid dac_override dac_read_search };
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# run helper programs - needed eg for x11-ssh-askpass
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can_exec($1_ssh_t, { shell_exec_t bin_t })
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# Read the ssh key file.
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allow $1_ssh_t sshd_key_t:file r_file_perms;
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# Access the ssh temporary files.
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file_type_auto_trans($1_ssh_t, tmp_t, sshd_tmp_t)
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allow $1_ssh_t $1_tmp_t:dir r_dir_perms;
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# for rsync
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allow $1_ssh_t $1_t:unix_stream_socket rw_socket_perms;
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# Access the users .ssh directory.
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file_type_auto_trans({ sysadm_ssh_t $1_ssh_t }, $1_home_dir_t, $1_home_ssh_t, dir)
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file_type_auto_trans($1_ssh_t, $1_home_dir_t, $1_home_ssh_t, sock_file)
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allow $1_t $1_home_ssh_t:sock_file create_file_perms;
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allow { sysadm_ssh_t $1_ssh_t } $1_home_ssh_t:file create_file_perms;
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allow { sysadm_ssh_t $1_ssh_t } $1_home_ssh_t:lnk_file { getattr read };
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dontaudit $1_ssh_t $1_home_t:dir { getattr search };
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r_dir_file({ sshd_t sshd_extern_t }, $1_home_ssh_t)
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rw_dir_create_file($1_t, $1_home_ssh_t)
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# for /bin/sh used to execute xauth
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dontaudit $1_ssh_t proc_t:dir search;
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dontaudit $1_ssh_t proc_t:{ lnk_file file } { getattr read };
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# Inherit and use descriptors from gnome-pty-helper.
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ifdef(`gnome-pty-helper.te', `allow $1_ssh_t $1_gph_t:fd use;')
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# Write to the user domain tty.
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access_terminal($1_ssh_t, $1)
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# Allow the user shell to signal the ssh program.
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allow $1_t $1_ssh_t:process signal;
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# allow ps to show ssh
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can_ps($1_t, $1_ssh_t)
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ifdef(`xserver.te', `
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# Communicate with the X server.
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ifdef(`startx.te', `
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can_unix_connect($1_ssh_t, $1_xserver_t)
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allow $1_ssh_t $1_xserver_tmp_t:sock_file rw_file_perms;
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allow $1_ssh_t $1_xserver_tmp_t:dir search;
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')dnl end if startx
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ifdef(`xdm.te', `
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allow $1_ssh_t { xdm_xserver_tmp_t xdm_tmp_t }:dir search;
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allow $1_ssh_t { xdm_tmp_t }:sock_file write;
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')
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')dnl end if xserver
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ifdef(`ssh-agent.te', `
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ssh_agent_domain($1)
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')dnl end if ssh_agent.te
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#allow ssh to access keys stored on removable media
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# Should we have a boolean around this?
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allow $1_ssh_t mnt_t:dir search;
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r_dir_file($1_ssh_t, removable_t)
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ifdef(`xdm.te', `
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# should be able to remove these two later
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allow $1_ssh_t xdm_xserver_tmp_t:sock_file { read write };
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allow $1_ssh_t xdm_xserver_tmp_t:dir search;
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allow $1_ssh_t xdm_xserver_t:unix_stream_socket connectto;
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allow $1_ssh_t xdm_xserver_t:shm r_shm_perms;
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allow $1_ssh_t xdm_xserver_t:fd use;
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allow $1_ssh_t xdm_xserver_tmpfs_t:file read;
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allow $1_ssh_t xdm_t:fd use;
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')dnl end if xdm.te
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') dnl endif TODO
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')
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########################################
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#
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#
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#
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template(`sshd_program_domain', `
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# auth_chkpwd is for running unix_chkpwd and unix_verify.
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type $1_t; #, nscd_client_domain;
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role system_r types $1_t;
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type $1_devpts_t;
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term_login_pty($1_devpts_t)
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type $1_var_run_t;
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files_pid_file($1_var_run_t)
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allow $1_t self:capability { kill sys_chroot sys_resource chown dac_override fowner fsetid setgid setuid sys_tty_config };
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allow $1_t self:fifo_file rw_file_perms;
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allow $1_t self:process { signal setsched setrlimit setexec };
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allow $1_t self:tcp_socket { listen accept create connect ioctl read getattr write setattr append bind getopt setopt shutdown };
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allow $1_t self:udp_socket { connect create ioctl read getattr write setattr append bind getopt setopt shutdown };
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allow $1_t $1_devpts_t:chr_file { rw_file_perms setattr getattr relabelfrom };
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term_create_pty($1_t,$1_devpts_t)
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allow $1_t $1_var_run_t:file create_file_perms;
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files_create_pid($1_t,$1_var_run_t,file)
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can_exec($1_t, sshd_exec_t)
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# Access key files
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allow $1_t sshd_key_t:file { getattr read };
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kernel_read_kernel_sysctl($1_t)
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corenet_tcp_sendrecv_all_if($1_t)
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corenet_udp_sendrecv_all_if($1_t)
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corenet_raw_sendrecv_all_if($1_t)
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corenet_tcp_sendrecv_all_nodes($1_t)
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corenet_udp_sendrecv_all_nodes($1_t)
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corenet_raw_sendrecv_all_nodes($1_t)
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corenet_udp_sendrecv_all_ports($1_t)
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corenet_tcp_sendrecv_all_ports($1_t)
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corenet_tcp_bind_all_nodes($1_t)
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corenet_udp_bind_all_nodes($1_t)
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dev_read_urand($1_t)
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selinux_get_fs_mount($1_t)
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selinux_validate_context($1_t)
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selinux_compute_access_vector($1_t)
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selinux_compute_create_context($1_t)
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selinux_compute_relabel_context($1_t)
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selinux_compute_user_contexts($1_t)
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auth_dontaudit_read_shadow($1_t)
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auth_domtrans_chk_passwd($1_t)
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auth_rw_login_records($1_t)
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auth_rw_lastlog($1_t)
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domain_wide_inherit_fd($1_t)
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domain_subj_id_change_exempt($1_t)
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domain_role_change_exempt($1_t)
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domain_obj_id_change_exempt($1_t)
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files_read_generic_etc_files($1_t)
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files_read_etc_runtime_files($1_t)
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init_rw_script_pid($1_t)
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libs_use_ld_so($1_t)
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libs_use_shared_libs($1_t)
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logging_search_logs($1_t)
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logging_send_syslog_msg($1_t)
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miscfiles_read_localization($1_t)
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seutil_read_default_contexts($1_t)
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sysnet_read_config($1_t)
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tunable_policy(`use_nfs_home_dirs',`
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fs_read_nfs_files($1_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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fs_read_cifs_files($1_t)
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')
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ifdef(`TODO',`
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# do not allow statfs()
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dontaudit $1_t fs_type:filesystem getattr;
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allow $1_t bin_t:dir search;
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allow $1_t bin_t:lnk_file read;
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# for sshd subsystems, such as sftp-server.
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allow $1_t bin_t:file getattr;
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# Read /var.
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allow $1_t var_t:dir getattr;
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ifdef(`mount.te', `
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allow $1_t mount_t:udp_socket rw_socket_perms;
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')
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allow $1_t { home_root_t home_dir_type }:dir { search getattr };
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allow $1_t autofs_t:dir { search getattr };
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dontaudit sshd_t userpty_type:chr_file relabelfrom;
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optional_policy(`inetd.te',`
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if (run_ssh_inetd) {
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allow $1_t self:process signal;
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allow $1_t inetd_t:tcp_socket rw_socket_perms;
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allow $1_t var_run_t:dir { getattr search };
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} else {
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corenet_tcp_bind_ssh_port($1_t)
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init_use_fd($1_t)
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init_use_script_pty($1_t)
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}
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',`
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# These rules should match the else block
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# of the run_ssh_inetd conditional directly above
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corenet_tcp_bind_ssh_port($1_t)
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init_use_fd($1_t)
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init_use_script_pty($1_t)
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')
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') dnl end TODO
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')
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