SELinux [Electronic resources] نسخه متنی

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SELinux [Electronic resources] - نسخه متنی

Bill McCarty

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Appendix E. SELinux Type Attributes


Table E-1 summarizes the SELinux type attributes
appearing in the Fedora Core 2 implementation of SELinux. Other
implementations may define different type attributes or assign
different meaning to attributes shown in the table.


Table E-1. SELinux type attributes





Type attribute




Description




admin


Administrator domain, such as sysadm_t


auth


Domain that can read /etc/shadow


auth_chkpwd


Domain that can authenticate users by running
unix_chkpwd


auth_write


Domain that can write or relabel /etc/shadow


dbus_client_domain


Domain of dbus
client


device_type


Type assigned to device nodes


domain


Type that can be assigned to a process


etc_writer


Domain that can write to etc_t


exec_type


Type assigned to executables that are domain entry points


file_type


Type assigned to files in persistent filesystems


fs_domain


Domain that can directly access a fixed disk


fs_type


Type assigned to filesystems, including nonpersistent filesystems


gphdomain


Domain derived from gnome-pty-helper


home_dir_type


Type assigned to the parent directory holding user home directories


home_type


Type assigned to home directories


homedirfile


Type of special file in home directory, used to associate mount
points with home directories


lockfile


Type assigned to lock files or directories


logfile


Type assigned to log files or directories


login_contexts


Type assigned to files used to define default contexts for login type


mail_server_domain


Domain that can accept inbound TCP port 25 connection


mail_server_sender


Domain that can make outbound TCP port 25 connection


mini_pty_type


pty used for a user_mini_domain


mlstrustedobject


Type that can be accessed irrespective of MLS restrictions (not used)


mlstrustedreader


Domain that can override MLS restrictions on reading (not used)


mlstrustedwriter


Domain that can override MLS restrictions on writing (not used)


mta_delivery_agent


Mail server domain that can deliver messages


mta_user_agent


Mail server domain that can read user files and FIFOs and inherit
file handles for mail spool


netif_type


Type assigned to network interfaces


netmsg_type


Type assigned to packets received on network interfaces


node_type


Type assigned to network nodes (hosts)


noexattrfile


Type of filesystem not supporting extended attributes


pidfile


Type assigned to PID files


port_type


Type assigned to TCP/IP port numbers


priv_system_role


Domain that can change role from a user role to a
system_r
role, and user from a user identity to
system_u


privfd


Domain whose file handles can be widely inherited


privhome


Domain that can act on behalf of a user by creating files under the
user's home directory


privlog


Domain that can communicate with the system logger daemon via its
Unix domain socket


privmail


Domain that can transition to system_mail_t


privmem


Domain that can access kernel memory


privmodule


Domain that can run modprobe


privowner


Domain that can assign a nondefault SELinux user identity to a file,
or create a file having an SELinux user identity other than that of
the current process


privrole


Domain that can change the SELinux role identity


privuser


Domain that can change the SELinux user identity


ptyfile


Type assigned to ptys


root_dir_type


Type assigned to filesystem root directories, including those of
nonpersistent filesystems


server_pty


Type of pty created by a server, such as sshd


socket_type


Type assigned to kernel-created sockets (ordinary sockets are labeled
with the type of the creating process)


sysadmfile


Type assigned to files fully controlled by administrators


sysctl_kernel_writer


Domain (other than admin
Domain) that can write to
sysctl_kernel_t


sysctl_net_writer


Domain that can write to sysctl_net_t


sysctl_type


Type assigned to a sysctl
entry; that is, a
configuration item appearing in /proc/sys


tmpfile


Type assigned to temporary files


tmpfsfile


Type defined for tmpfs
type translations


ttyfile


Type assigned to ttys


unpriv_userdomain


Type of nonadministrative users, such as user_t


user_crond_domain


Type of user crond domain, such as
user_crond_t
and system_crond_t


user_home_dir_type


Type of user home directory of unpriv_userdomain

user


user_home_type


Type of nonadministrator home directory


user_mail_domain


Domain used by sendmail
-t


user_mini_domain


Small Domain used for newrole


user_tmpfile


Type assigned to temporary files of
unpriv_userdomain
domain


usercanread


Type of files that user can read


userdomain


User domain, such as user_t
and
sysadm_t


userpty_type


Type of nonadministrative pty (devpts
)


web_client_domain


Domain of web client, such as Netscape and Squid


xserver_tmpfile


Type assigned to temporary files of user_xserver_t

domain


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