208 lines
6.1 KiB
Plaintext
208 lines
6.1 KiB
Plaintext
#
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# Macros for all admin domains.
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#
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#
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# admin_domain(domain_prefix)
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#
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# Define derived types and rules for an administrator domain.
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#
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# The type declaration and role authorization for the domain must be
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# provided separately. Likewise, domain transitions into this domain
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# must be specified separately. If the every_domain() rules are desired,
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# then these rules must also be specified separately.
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#
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undefine(`admin_domain')
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define(`admin_domain',`
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# Type for home directory.
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attribute $1_file_type;
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type $1_home_dir_t, file_type, sysadmfile, home_dir_type, home_type;
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type $1_home_t, file_type, sysadmfile, home_type, $1_file_type;
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# Type and access for pty devices.
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can_create_pty($1)
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tmp_domain($1, `, $1_file_type', `{ file dir lnk_file sock_file fifo_file }')
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# Type for tty devices.
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type $1_tty_device_t, sysadmfile, ttyfile, dev_fs;
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# Inherit rules for ordinary users.
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base_user_domain($1)
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allow $1_t self:capability setuid;
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ifdef(`su.te', `su_domain($1)')
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ifdef(`userhelper.te', `userhelper_domain($1)')
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ifdef(`sudo.te', `sudo_domain($1)')
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# Violates the goal of limiting write access to checkpolicy.
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# But presently necessary for installing the file_contexts file.
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create_dir_file($1_t, policy_config_t)
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r_dir_file($1_t, selinux_config_t)
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# Let admin stat the shadow file.
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allow $1_t shadow_t:file getattr;
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ifdef(`crond.te', `
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allow $1_crond_t var_log_t:file r_file_perms;
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')
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# Allow system log read
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allow $1_t kernel_t:system syslog_read;
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# Use capabilities other than sys_module.
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allow $1_t self:capability ~sys_module;
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# Get security policy decisions.
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can_getsecurity($1_t)
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# Use system operations.
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allow $1_t kernel_t:system *;
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# Set password information for other users.
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allow $1_t self:passwd { passwd chfn chsh };
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# Skip authentication when pam_rootok is specified.
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allow $1_t self:passwd rootok;
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# Manipulate other user crontab.
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allow $1_t self:passwd crontab;
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can_getsecurity(sysadm_crontab_t)
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# Change system parameters.
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can_sysctl($1_t)
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# Create and use all files that have the sysadmfile attribute.
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allow $1_t sysadmfile:{ file sock_file fifo_file } create_file_perms;
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allow $1_t sysadmfile:lnk_file create_lnk_perms;
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allow $1_t sysadmfile:dir create_dir_perms;
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# for lsof
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allow $1_t mtrr_device_t:file getattr;
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allow $1_t fs_type:dir getattr;
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# Set an exec context, e.g. for runcon.
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can_setexec($1_t)
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# Set a context other than the default one for newly created files.
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can_setfscreate($1_t)
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# Access removable devices.
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allow $1_t removable_device_t:devfile_class_set rw_file_perms;
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# Communicate with the init process.
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allow $1_t initctl_t:fifo_file rw_file_perms;
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# Examine all processes.
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can_ps($1_t, domain)
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# allow renice
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allow $1_t domain:process setsched;
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# Send signals to all processes.
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allow $1_t { domain unlabeled_t }:process signal_perms;
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# Access all user terminals.
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allow $1_t tty_device_t:chr_file rw_file_perms;
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allow $1_t ttyfile:chr_file rw_file_perms;
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allow $1_t ptyfile:chr_file rw_file_perms;
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allow $1_t serial_device:chr_file setattr;
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# allow setting up tunnels
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allow $1_t tun_tap_device_t:chr_file rw_file_perms;
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# run ls -l /dev
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allow $1_t device_t:dir r_dir_perms;
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allow $1_t { device_t device_type }:{ chr_file blk_file } getattr;
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allow $1_t ptyfile:chr_file getattr;
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# Run programs from staff home directories.
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# Not ideal, but typical if users want to login as both sysadm_t or staff_t.
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can_exec($1_t, staff_home_t)
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# Run programs from /usr/src.
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can_exec($1_t, src_t)
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# Run admin programs that require different permissions in their own domain.
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# These rules were moved into the appropriate program domain file.
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# added by mayerf@tresys.com
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# The following rules are temporary until such time that a complete
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# policy management infrastructure is in place so that an administrator
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# cannot directly manipulate policy files with arbitrary programs.
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#
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allow $1_t policy_src_t:file create_file_perms;
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allow $1_t policy_src_t:lnk_file create_lnk_perms;
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allow $1_t policy_src_t:dir create_dir_perms;
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# Relabel all files.
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# Actually this will not allow relabeling ALL files unless you change
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# sysadmfile to file_type (and change the assertion in assert.te that
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# only auth_write can relabel shadow_t)
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allow $1_t sysadmfile:dir { getattr read search relabelfrom relabelto };
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allow $1_t sysadmfile:notdevfile_class_set { getattr relabelfrom relabelto };
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ifdef(`startx.te', `
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ifdef(`xserver.te', `
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# Create files in /tmp/.X11-unix with our X servers derived
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# tmp type rather than user_xserver_tmp_t.
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file_type_auto_trans($1_xserver_t, xserver_tmpfile, $1_xserver_tmp_t, sock_file)
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')dnl end xserver.te
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')dnl end startx.te
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ifdef(`xdm.te', `
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ifdef(`xauth.te', `
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if (xdm_sysadm_login) {
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allow xdm_t $1_home_t:lnk_file read;
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allow xdm_t $1_home_t:dir search;
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}
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allow $1_t xdm_t:fifo_file rw_file_perms;
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')dnl end ifdef xauth.te
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')dnl end ifdef xdm.te
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#
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# A user who is authorized for sysadm_t may nonetheless have
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# a home directory labeled with user_home_t if the user is expected
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# to login in either user_t or sysadm_t. Hence, the derived domains
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# for programs need to be able to access user_home_t.
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#
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# Allow our gph domain to write to .xsession-errors.
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ifdef(`gnome-pty-helper.te', `
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allow $1_gph_t user_home_dir_type:dir rw_dir_perms;
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allow $1_gph_t user_home_type:file create_file_perms;
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')
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# Allow our crontab domain to unlink a user cron spool file.
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ifdef(`crontab.te',
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`allow $1_crontab_t user_cron_spool_t:file unlink;')
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# for the administrator to run TCP servers directly
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can_tcp_connect($1_t, $1_t)
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allow $1_t port_t:tcp_socket name_bind;
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# Connect data port to ftpd.
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ifdef(`ftpd.te', `can_tcp_connect(ftpd_t, $1_t)')
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# Connect second port to rshd.
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ifdef(`rshd.te', `can_tcp_connect(rshd_t, $1_t)')
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#
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# Allow sysadm to execute quota commands against filesystems and files.
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#
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allow $1_t fs_type:filesystem quotamod;
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# Grant read and write access to /dev/console.
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allow $1_t console_device_t:chr_file rw_file_perms;
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# Allow MAKEDEV to work
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allow $1_t device_t:dir rw_dir_perms;
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allow $1_t device_type:{ blk_file chr_file } { create unlink rename };
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allow $1_t device_t:lnk_file { create read };
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# for lsof
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allow $1_t domain:socket_class_set getattr;
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allow $1_t eventpollfs_t:file getattr;
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')
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