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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"
config BUSYBOX_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.
config BUSYBOX_CONFIG_USE_BB_PWD_GRP
bool "Use internal password and group functions rather than system functions"
default n
help
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 need to use glibc's nsswitch.conf mechanism
(e.g. if user/group database is NOT stored in /etc/passwd etc),
you must NOT use this option.
If you enable this option, it will add about 1.5k.
config BUSYBOX_CONFIG_USE_BB_SHADOW
bool "Use internal shadow password functions"
default n
depends on BUSYBOX_CONFIG_USE_BB_PWD_GRP && BUSYBOX_CONFIG_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.
config BUSYBOX_CONFIG_USE_BB_CRYPT
bool "Use internal DES and MD5 crypt functions"
default n
help
Busybox has internal DES and MD5 crypt functions.
They produce results which are identical to corresponding
standard C library functions.
If you leave this disabled, busybox will use the system's
crypt functions. Most C libraries use large (~70k)
static buffers there, and also combine them with more general
DES encryption/decryption.
For busybox, having large static buffers is undesirable,
especially on NOMMU machines. Busybox also doesn't need
DES encryption/decryption and can do with smaller code.
If you enable this option, it will add about 4.8k of code
if you are building dynamically linked executable.
In static build, it makes code _smaller_ by about 1.2k,
and likely many kilobytes less of bss.
config BUSYBOX_CONFIG_ADDGROUP
bool "addgroup"
default n
help
Utility for creating a new group account.
config BUSYBOX_CONFIG_FEATURE_ADDUSER_TO_GROUP
bool "Support for adding users to groups"
default n
depends on BUSYBOX_CONFIG_ADDGROUP
help
If called with two non-option arguments,
addgroup will add an existing user to an
existing group.
config BUSYBOX_CONFIG_DELGROUP
bool "delgroup"
default n
help
Utility for deleting a group account.
config BUSYBOX_CONFIG_FEATURE_DEL_USER_FROM_GROUP
bool "Support for removing users from groups"
default n
depends on BUSYBOX_CONFIG_DELGROUP
help
If called with two non-option arguments, deluser
or delgroup will remove an user from a specified group.
config BUSYBOX_CONFIG_FEATURE_CHECK_NAMES
bool "Enable sanity check on user/group names in adduser and addgroup"
default n
depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
help
Enable sanity check on user and group names in adduser and addgroup.
To avoid problems, the user or group name should consist only of
letters, digits, underscores, periods, at signs and dashes,
and not start with a dash (as defined by IEEE Std 1003.1-2001).
For compatibility with Samba machine accounts "$" is also supported
at the end of the user or group name.
config BUSYBOX_CONFIG_ADDUSER
bool "adduser"
default n
help
Utility for creating a new user account.
config BUSYBOX_CONFIG_FEATURE_ADDUSER_LONG_OPTIONS
bool "Enable long options"
default n
depends on BUSYBOX_CONFIG_ADDUSER && BUSYBOX_CONFIG_GETOPT_LONG
help
Support long options for the adduser applet.
config BUSYBOX_CONFIG_DELUSER
bool "deluser"
default n
help
Utility for deleting a user account.
config BUSYBOX_CONFIG_GETTY
bool "getty"
default n
select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
getty lets you log in on a tty, it is normally invoked by init.
config BUSYBOX_CONFIG_FEATURE_UTMP
bool "Support utmp file"
depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_WHO
default n
help
The file /var/run/utmp is used to track who is currently logged in.
config BUSYBOX_CONFIG_FEATURE_WTMP
bool "Support wtmp file"
depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_LAST
default n
select BUSYBOX_CONFIG_FEATURE_UTMP
help
The file /var/run/wtmp is used to track when user's have logged into
and logged out of the system.
config BUSYBOX_CONFIG_LOGIN
bool "login"
default n
select BUSYBOX_CONFIG_FEATURE_SUID
select BUSYBOX_CONFIG_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.
config BUSYBOX_CONFIG_PAM
bool "Support for PAM (Pluggable Authentication Modules)"
default n
depends on BUSYBOX_CONFIG_LOGIN
help
Use PAM in login(1) instead of direct access to password database.
config BUSYBOX_CONFIG_LOGIN_SCRIPTS
bool "Support for login scripts"
depends on BUSYBOX_CONFIG_LOGIN
default n
help
Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
just prior to switching from root to logged-in user.
config BUSYBOX_CONFIG_FEATURE_NOLOGIN
bool "Support for /etc/nologin"
default n
depends on BUSYBOX_CONFIG_LOGIN
help
The file /etc/nologin is used by (some versions of) login(1).
If it exists, non-root logins are prohibited.
config BUSYBOX_CONFIG_FEATURE_SECURETTY
bool "Support for /etc/securetty"
default n
depends on BUSYBOX_CONFIG_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.
config BUSYBOX_CONFIG_PASSWD
bool "passwd"
default y
select BUSYBOX_CONFIG_FEATURE_SUID
select BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_PASSWD_WEAK_CHECK
bool "Check new passwords for weakness"
default y
depends on BUSYBOX_CONFIG_PASSWD
help
With this option passwd will refuse new passwords which are "weak".
config BUSYBOX_CONFIG_CRYPTPW
bool "cryptpw"
default n
help
Applet for crypting a string.
config BUSYBOX_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.
config BUSYBOX_CONFIG_SU
bool "su"
default n
select BUSYBOX_CONFIG_FEATURE_SUID
select BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_SU_SYSLOG
bool "Enable su to write to syslog"
default n
depends on BUSYBOX_CONFIG_SU
config BUSYBOX_CONFIG_FEATURE_SU_CHECKS_SHELLS
bool "Enable su to check user's shell to be listed in /etc/shells"
depends on BUSYBOX_CONFIG_SU
default n
config BUSYBOX_CONFIG_SULOGIN
bool "sulogin"
default n
select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
sulogin is invoked when the system goes into single user
mode (this is done through an entry in inittab).
config BUSYBOX_CONFIG_VLOCK
bool "vlock"
default n
select BUSYBOX_CONFIG_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
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