busybox/loginutils/Config.in

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#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#
menu "Login/Password Management Utilities"
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config FEATURE_SHADOWPASSWDS
bool "Support for shadow passwords"
default n
help
Build support for shadow password in /etc/shadow. This file is only
readable by root and thus the encrypted passwords are no longer
publicly readable.
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config USE_BB_SHADOW
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bool " Use busybox shadow password functions"
default y
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depends on USE_BB_PWD_GRP && FEATURE_SHADOWPASSWDS
help
If you leave this disabled, busybox will use the system's shadow
password handling functions. And if you are using the GNU C library
(glibc), you will then need to install the /etc/nsswitch.conf
configuration file and the required /lib/libnss_* libraries in
order for the shadow password functions to work. This generally
makes your embedded system quite a bit larger.
Enabling this option will cause busybox to directly access the
system's /etc/shadow file when handling shadow passwords. This
makes your system smaller and I will get fewer emails asking about
how glibc NSS works). When this option is enabled, you will not be
able to use PAM to access shadow passwords from remote LDAP
password servers and whatnot.
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config USE_BB_PWD_GRP
bool "Use internal password and group functions rather than system functions"
default n
help
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If you leave this disabled, busybox will use the system's password
and group functions. And if you are using the GNU C library
(glibc), you will then need to install the /etc/nsswitch.conf
configuration file and the required /lib/libnss_* libraries in
order for the password and group functions to work. This generally
makes your embedded system quite a bit larger.
Enabling this option will cause busybox to directly access the
system's /etc/password, /etc/group files (and your system will be
smaller, and I will get fewer emails asking about how glibc NSS
works). When this option is enabled, you will not be able to use
PAM to access remote LDAP password servers and whatnot. And if you
want hostname resolution to work with glibc, you still need the
/lib/libnss_* libraries.
If you enable this option, it will add about 1.5k to busybox.
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config ADDGROUP
bool "addgroup"
default n
help
Utility for creating a new group account.
config FEATURE_ADDUSER_TO_GROUP
bool "Support for adding users to groups"
default n
depends on ADDGROUP
help
If called with two non-option arguments,
addgroup will add an existing user to an
existing group.
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config DELGROUP
bool "delgroup"
default n
help
Utility for deleting a group account.
config FEATURE_DEL_USER_FROM_GROUP
bool "Support for removing users from groups."
default n
depends on DELGROUP
help
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If called with two non-option arguments, deluser
or delgroup will remove an user from a specified group.
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config ADDUSER
bool "adduser"
default n
help
Utility for creating a new user account.
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config DELUSER
bool "deluser"
default n
help
Utility for deleting a user account.
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config GETTY
bool "getty"
default n
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select FEATURE_SYSLOG
help
getty lets you log in on a tty, it is normally invoked by init.
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config FEATURE_UTMP
bool "Support utmp file"
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depends on GETTY || LOGIN || SU || WHO
default n
help
The file /var/run/utmp is used to track who is currently logged in.
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config FEATURE_WTMP
bool "Support wtmp file"
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depends on GETTY || LOGIN || SU || LAST
default n
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select FEATURE_UTMP
help
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The file /var/run/wtmp is used to track when user's have logged into
and logged out of the system.
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config LOGIN
bool "login"
default n
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select FEATURE_SUID
select FEATURE_SYSLOG
help
login is used when signing onto a system.
Note that Busybox binary must be setuid root for this applet to
work properly.
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config PAM
bool "Support for PAM (Pluggable Authentication Modules)"
default n
depends on LOGIN
help
Use PAM in login(1) instead of direct access to password database.
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config LOGIN_SCRIPTS
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bool "Support for login scripts"
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depends on LOGIN
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default n
help
Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
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just prior to switching from root to logged-in user.
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config FEATURE_NOLOGIN
bool "Support for /etc/nologin"
default y
depends on LOGIN
help
The file /etc/nologin is used by (some versions of) login(1).
If it exists, non-root logins are prohibited.
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config FEATURE_SECURETTY
bool "Support for /etc/securetty"
default y
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depends on LOGIN
help
The file /etc/securetty is used by (some versions of) login(1).
The file contains the device names of tty lines (one per line,
without leading /dev/) on which root is allowed to login.
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config PASSWD
bool "passwd"
default n
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select FEATURE_SUID
select FEATURE_SYSLOG
help
passwd changes passwords for user and group accounts. A normal user
may only change the password for his/her own account, the super user
may change the password for any account. The administrator of a group
may change the password for the group.
Note that Busybox binary must be setuid root for this applet to
work properly.
config FEATURE_PASSWD_WEAK_CHECK
bool "Check new passwords for weakness"
default y
depends on PASSWD
help
With this option passwd will refuse new passwords which are "weak".
config CRYPTPW
bool "cryptpw"
default n
help
Applet for crypting a string.
config CHPASSWD
bool "chpasswd"
default n
help
chpasswd reads a file of user name and password pairs from
standard input and uses this information to update a group of
existing users.
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config SU
bool "su"
default n
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select FEATURE_SUID
select FEATURE_SYSLOG
help
su is used to become another user during a login session.
Invoked without a username, su defaults to becoming the super user.
Note that Busybox binary must be setuid root for this applet to
work properly.
config FEATURE_SU_SYSLOG
bool "Enable su to write to syslog"
default y
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depends on SU
config FEATURE_SU_CHECKS_SHELLS
bool "Enable su to check user's shell to be listed in /etc/shells"
depends on SU
default y
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config SULOGIN
bool "sulogin"
default n
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select FEATURE_SYSLOG
help
sulogin is invoked when the system goes into single user
mode (this is done through an entry in inittab).
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config VLOCK
bool "vlock"
default n
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select FEATURE_SUID
help
Build the "vlock" applet which allows you to lock (virtual) terminals.
Note that Busybox binary must be setuid root for this applet to
work properly.
endmenu