]> git.ipfire.org Git - people/stevee/selinux-policy.git/blobdiff - policy/modules/services/ssh.te
Remove module for gitosis.
[people/stevee/selinux-policy.git] / policy / modules / services / ssh.te
index c1c739333bac270f55489d53f591803b5f026ae7..aadaa2cb0b2f164ef873a1f80fae6aed00dfe53c 100644 (file)
@@ -26,13 +26,24 @@ gen_tunable(ssh_sysadm_login, false)
 ## </desc>
 gen_tunable(sshd_forward_ports, false)
 
+## <desc>
+## <p>
+## Allow ssh with chroot env to read and write files 
+## in the user home directories
+## </p>
+## </desc>
+gen_tunable(ssh_chroot_rw_homedirs, false)
+
+attribute ssh_dyntransition_domain;
 attribute ssh_server;
 attribute ssh_agent_type;
 
+ssh_dyntransition_domain_template(chroot_user_t)
+ssh_dyntransition_domain_template(sshd_sandbox_t)
+
 type ssh_keygen_t;
 type ssh_keygen_exec_t;
 init_system_domain(ssh_keygen_t, ssh_keygen_exec_t)
-role system_r types ssh_keygen_t;
 
 type sshd_exec_t;
 corecmd_executable_file(sshd_exec_t)
@@ -46,10 +57,6 @@ init_script_file(sshd_initrc_exec_t)
 type sshd_key_t;
 files_type(sshd_key_t)
 
-ifdef(`enable_mcs',`
-       init_ranged_daemon_domain(sshd_t, sshd_exec_t, s0 - mcs_systemhigh)
-')
-
 type ssh_t;
 type ssh_exec_t;
 typealias ssh_t alias { user_ssh_t staff_ssh_t sysadm_ssh_t };
@@ -82,8 +89,12 @@ ubac_constrained(ssh_tmpfs_t)
 type ssh_home_t;
 typealias ssh_home_t alias { home_ssh_t user_ssh_home_t user_home_ssh_t staff_home_ssh_t sysadm_home_ssh_t };
 typealias ssh_home_t alias { auditadm_home_ssh_t secadm_home_ssh_t };
-files_type(ssh_home_t)
 userdom_user_home_content(ssh_home_t)
+files_poly_parent(ssh_home_t)
+
+ifdef(`enable_mcs',`
+       init_ranged_daemon_domain(sshd_t, sshd_exec_t, s0 - mcs_systemhigh)
+')
 
 ##############################
 #
@@ -94,6 +105,7 @@ allow ssh_t self:capability { setuid setgid dac_override dac_read_search };
 allow ssh_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
 allow ssh_t self:fd use;
 allow ssh_t self:fifo_file rw_fifo_file_perms;
+allow ssh_t self:key read;
 allow ssh_t self:unix_dgram_socket { create_socket_perms sendto };
 allow ssh_t self:unix_stream_socket { create_stream_socket_perms connectto };
 allow ssh_t self:shm create_shm_perms;
@@ -101,6 +113,7 @@ allow ssh_t self:sem create_sem_perms;
 allow ssh_t self:msgq create_msgq_perms;
 allow ssh_t self:msg { send receive };
 allow ssh_t self:tcp_socket create_stream_socket_perms;
+can_exec(ssh_t, ssh_exec_t)
 
 # Read the ssh key file.
 allow ssh_t sshd_key_t:file read_file_perms;
@@ -114,12 +127,16 @@ fs_tmpfs_filetrans(ssh_t, ssh_tmpfs_t, { dir file lnk_file sock_file fifo_file }
 manage_dirs_pattern(ssh_t, ssh_home_t, ssh_home_t)
 manage_sock_files_pattern(ssh_t, ssh_home_t, ssh_home_t)
 userdom_user_home_dir_filetrans(ssh_t, ssh_home_t, { dir sock_file })
+userdom_read_all_users_keys(ssh_t)
 userdom_stream_connect(ssh_t)
+userdom_search_admin_dir(sshd_t)
+userdom_admin_home_dir_filetrans(ssh_t, ssh_home_t, { dir sock_file })
 
 # Allow the ssh program to communicate with ssh-agent.
 stream_connect_pattern(ssh_t, ssh_agent_tmp_t, ssh_agent_tmp_t, ssh_agent_type)
 
 allow ssh_t sshd_t:unix_stream_socket connectto;
+allow ssh_t sshd_t:peer recv;
 
 # ssh client can manage the keys and config
 manage_files_pattern(ssh_t, ssh_home_t, ssh_home_t)
@@ -143,7 +160,9 @@ corenet_tcp_connect_ssh_port(ssh_t)
 corenet_sendrecv_ssh_client_packets(ssh_t)
 corenet_tcp_bind_generic_node(ssh_t)
 corenet_tcp_bind_all_unreserved_ports(ssh_t)
+corenet_rw_tun_tap_dev(ssh_t)
 
+dev_read_rand(ssh_t)
 dev_read_urand(ssh_t)
 
 fs_getattr_all_fs(ssh_t)
@@ -167,32 +186,26 @@ logging_read_generic_logs(ssh_t)
 auth_use_nsswitch(ssh_t)
 
 miscfiles_read_localization(ssh_t)
+miscfiles_read_generic_certs(ssh_t)
 
 seutil_read_config(ssh_t)
 
 userdom_dontaudit_list_user_home_dirs(ssh_t)
 userdom_search_user_home_dirs(ssh_t)
+userdom_search_admin_dir(ssh_t)
 # Write to the user domain tty.
-userdom_use_user_terminals(ssh_t)
+userdom_use_inherited_user_terminals(ssh_t)
 # needs to read krb/write tgt
 userdom_read_user_tmp_files(ssh_t)
 userdom_write_user_tmp_files(ssh_t)
 userdom_read_user_home_content_symlinks(ssh_t)
+userdom_read_home_certs(ssh_t)
+userdom_home_manager(ssh_t)
 
 tunable_policy(`allow_ssh_keysign',`
        domtrans_pattern(ssh_t, ssh_keysign_exec_t, ssh_keysign_t)
 ')
 
-tunable_policy(`use_nfs_home_dirs',`
-       fs_manage_nfs_dirs(ssh_t)
-       fs_manage_nfs_files(ssh_t)
-')
-
-tunable_policy(`use_samba_home_dirs',`
-       fs_manage_cifs_dirs(ssh_t)
-       fs_manage_cifs_files(ssh_t)
-')
-
 # for port forwarding
 tunable_policy(`user_tcp_server',`
        corenet_tcp_bind_ssh_port(ssh_t)
@@ -200,56 +213,14 @@ tunable_policy(`user_tcp_server',`
 ')
 
 optional_policy(`
-       xserver_user_x_domain_template(ssh, ssh_t, ssh_tmpfs_t)
-       xserver_domtrans_xauth(ssh_t)
+       gnome_stream_connect_all_gkeyringd(ssh_t)
 ')
 
-########################################
-#
-# ssh_keygen local policy
-#
-
-# ssh_keygen_t is the type of the ssh-keygen program when run at install time
-# and by sysadm_t
-
-dontaudit ssh_keygen_t self:capability sys_tty_config;
-allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal };
-allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
-
-allow ssh_keygen_t sshd_key_t:file manage_file_perms;
-files_etc_filetrans(ssh_keygen_t, sshd_key_t, file)
-
-kernel_read_kernel_sysctls(ssh_keygen_t)
-
-fs_search_auto_mountpoints(ssh_keygen_t)
-
-dev_read_sysfs(ssh_keygen_t)
-dev_read_urand(ssh_keygen_t)
-
-term_dontaudit_use_console(ssh_keygen_t)
-
-domain_use_interactive_fds(ssh_keygen_t)
-
-files_read_etc_files(ssh_keygen_t)
-
-init_use_fds(ssh_keygen_t)
-init_use_script_ptys(ssh_keygen_t)
-
-logging_send_syslog_msg(ssh_keygen_t)
-
-userdom_dontaudit_use_unpriv_user_fds(ssh_keygen_t)
-
 optional_policy(`
-       nscd_socket_use(ssh_keygen_t)
+       xserver_user_x_domain_template(ssh, ssh_t, ssh_tmpfs_t)
+       xserver_domtrans_xauth(ssh_t)
 ')
 
-optional_policy(`
-       seutil_sigchld_newrole(ssh_keygen_t)
-')
-
-optional_policy(`
-       udev_read_db(ssh_keygen_t)
-')
 
 ##############################
 #
@@ -260,19 +231,14 @@ tunable_policy(`allow_ssh_keysign',`
        allow ssh_keysign_t self:capability { setgid setuid };
        allow ssh_keysign_t self:unix_stream_socket create_socket_perms;
 
-       allow ssh_keysign_t sshd_key_t:file { getattr read };
+       allow ssh_keysign_t sshd_key_t:file read_file_perms;
 
+       dev_read_rand(ssh_keysign_t)
        dev_read_urand(ssh_keysign_t)
 
        files_read_etc_files(ssh_keysign_t)
 ')
 
-optional_policy(`
-       tunable_policy(`allow_ssh_keysign',`
-               nscd_socket_use(ssh_keysign_t)
-       ')
-')
-
 #################################
 #
 # sshd local policy
@@ -298,26 +264,30 @@ term_use_ptmx(sshd_t)
 corenet_tcp_bind_xserver_port(sshd_t)
 corenet_sendrecv_xserver_server_packets(sshd_t)
 
+userdom_read_user_home_content_files(sshd_t)
+userdom_read_user_home_content_symlinks(sshd_t)
+userdom_manage_tmp_role(system_r, sshd_t)
+userdom_spec_domtrans_unpriv_users(sshd_t)
+userdom_signal_unpriv_users(sshd_t)
+userdom_dyntransition_unpriv_users(sshd_t)
+
 tunable_policy(`sshd_forward_ports',`
        corenet_tcp_bind_all_unreserved_ports(sshd_t)
        corenet_tcp_connect_all_ports(sshd_t)
 ')
 
-userdom_read_user_home_content_files(sshd_t)
-userdom_read_user_home_content_symlinks(sshd_t)
-userdom_search_admin_dir(sshd_t)
-userdom_manage_tmp_role(system_r, sshd_t)
-
 tunable_policy(`ssh_sysadm_login',`
        # Relabel and access ptys created by sshd
        # ioctl is necessary for logout() processing for utmp entry and for w to
        # display the tty.
        # some versions of sshd on the new SE Linux require setattr
        userdom_signal_all_users(sshd_t)
+       userdom_spec_domtrans_all_users(sshd_t)
 ')
 
-userdom_spec_domtrans_unpriv_users(sshd_t)
-userdom_signal_unpriv_users(sshd_t)
+optional_policy(`
+       amanda_search_var_lib(sshd_t)
+')
 
 optional_policy(`
        daemontools_service_domain(sshd_t, sshd_exec_t)
@@ -332,10 +302,6 @@ optional_policy(`
        ftp_dyntrans_anon_sftpd(sshd_t)
 ')
 
-optional_policy(`
-       gitosis_manage_lib_files(sshd_t)
-')
-
 optional_policy(`
        inetd_tcp_service_domain(sshd_t, sshd_exec_t)
 ')
@@ -354,6 +320,10 @@ optional_policy(`
        rssh_read_ro_content(sshd_t)
 ')
 
+optional_policy(`
+       systemd_exec_systemctl(sshd_t)
+')
+
 optional_policy(`
        usermanage_domtrans_passwd(sshd_t)
        usermanage_read_crack_db(sshd_t)
@@ -386,7 +356,7 @@ ifdef(`TODO',`
                # ioctl is necessary for logout() processing for utmp entry and for w to
                # display the tty.
                # some versions of sshd on the new SE Linux require setattr
-               allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr };
+               allow sshd_t userpty_type:chr_file { relabelto rw_inherited_chr_file_perms setattr_chr_file_perms };
        ')
 ') dnl endif TODO
 
@@ -398,6 +368,7 @@ ifdef(`TODO',`
 # ssh_keygen_t is the type of the ssh-keygen program when run at install time
 # and by sysadm_t
 
+allow ssh_keygen_t self:capability dac_override;
 dontaudit ssh_keygen_t self:capability sys_tty_config;
 allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal };
 allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
@@ -405,11 +376,18 @@ allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
 allow ssh_keygen_t sshd_key_t:file manage_file_perms;
 files_etc_filetrans(ssh_keygen_t, sshd_key_t, file)
 
+manage_dirs_pattern(ssh_keygen_t, ssh_home_t, ssh_home_t)
+manage_files_pattern(ssh_keygen_t, ssh_home_t, ssh_home_t)
+userdom_admin_home_dir_filetrans(ssh_keygen_t, ssh_home_t, dir)
+userdom_user_home_dir_filetrans(ssh_keygen_t, ssh_home_t, dir)
+
+kernel_read_system_state(ssh_keygen_t)
 kernel_read_kernel_sysctls(ssh_keygen_t)
 
 fs_search_auto_mountpoints(ssh_keygen_t)
 
 dev_read_sysfs(ssh_keygen_t)
+dev_read_rand(ssh_keygen_t)
 dev_read_urand(ssh_keygen_t)
 
 term_dontaudit_use_console(ssh_keygen_t)
@@ -426,6 +404,7 @@ auth_use_nsswitch(ssh_keygen_t)
 logging_send_syslog_msg(ssh_keygen_t)
 
 userdom_dontaudit_use_unpriv_user_fds(ssh_keygen_t)
+userdom_use_user_terminals(ssh_keygen_t)
 
 optional_policy(`
        seutil_sigchld_newrole(ssh_keygen_t)
@@ -434,3 +413,77 @@ optional_policy(`
 optional_policy(`
        udev_read_db(ssh_keygen_t)
 ')
+
+####################################
+#
+# ssh_dyntransition domain local policy
+#
+
+allow ssh_dyntransition_domain self:capability { setuid sys_chroot setgid };
+
+allow ssh_dyntransition_domain self:fifo_file rw_fifo_file_perms;
+
+optional_policy(`
+    ssh_rw_stream_sockets(ssh_dyntransition_domain)
+    ssh_rw_tcp_sockets(ssh_dyntransition_domain)
+')
+
+#####################################
+#
+# ssh_sandbox local policy
+#
+
+allow sshd_t sshd_sandbox_t:process signal;
+
+init_ioctl_stream_sockets(sshd_sandbox_t)
+
+logging_send_audit_msgs(sshd_sandbox_t)
+
+######################################
+#
+# chroot_user_t local policy
+#
+
+
+userdom_read_user_home_content_files(chroot_user_t)
+userdom_read_inherited_user_home_content_files(chroot_user_t)
+userdom_read_user_home_content_symlinks(chroot_user_t)
+userdom_exec_user_home_content_files(chroot_user_t)
+
+tunable_policy(`ssh_chroot_rw_homedirs',`
+        files_list_home(chroot_user_t)
+        userdom_read_user_home_content_files(chroot_user_t)
+        userdom_manage_user_home_content(chroot_user_t)
+', `
+
+        userdom_user_home_dir_filetrans_pattern(chroot_user_t, { dir file lnk_file })
+')
+
+tunable_policy(`ssh_chroot_rw_homedirs && use_nfs_home_dirs',`
+    fs_manage_nfs_dirs(chroot_user_t)
+    fs_manage_nfs_files(chroot_user_t)
+    fs_manage_nfs_symlinks(chroot_user_t)
+')
+
+tunable_policy(`ssh_chroot_rw_homedirs && use_samba_home_dirs',`
+    fs_manage_cifs_dirs(chroot_user_t)
+    fs_manage_cifs_files(chroot_user_t)
+    fs_manage_cifs_symlinks(chroot_user_t)
+')
+
+tunable_policy(`ssh_chroot_rw_homedirs && use_fusefs_home_dirs',`
+    fs_manage_fusefs_dirs(chroot_user_t)
+    fs_manage_fusefs_files(chroot_user_t)
+    fs_manage_fusefs_symlinks(chroot_user_t)
+')
+
+tunable_policy(`use_samba_home_dirs',`
+    fs_read_cifs_files(chroot_user_t)
+    fs_read_cifs_symlinks(chroot_user_t)
+')
+
+userdom_home_manager(chroot_user_t)
+
+optional_policy(`
+    ssh_rw_dgram_sockets(chroot_user_t)
+')