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# DO NOT EDIT. This file is generated from Config.src
#
# For a description of the syntax of this configuration file,
# see docs/Kconfig-language.txt.
#
menu "Login/Password Management Utilities"
config BUSYBOX_FEATURE_SHADOWPASSWDS
bool "Support shadow passwords"
default y
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_USE_BB_PWD_GRP
bool "Use internal password and group functions rather than system functions"
default y
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_USE_BB_SHADOW
bool "Use internal shadow password functions"
default y
depends on BUSYBOX_USE_BB_PWD_GRP && BUSYBOX_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_USE_BB_CRYPT
bool "Use internal crypt functions"
default y
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_USE_BB_CRYPT_SHA
bool "Enable SHA256/512 crypt functions"
default y
depends on BUSYBOX_USE_BB_CRYPT
help
Enable this if you have passwords starting with "$5$" or "$6$"
in your /etc/passwd or /etc/shadow files. These passwords
are hashed using SHA256 and SHA512 algorithms. Support for them
was added to glibc in 2008.
With this option off, login will fail password check for any
user which has password encrypted with these algorithms.
config BUSYBOX_ADD_SHELL
bool "add-shell (3.1 kb)"
default y if BUSYBOX_DESKTOP
help
Add shells to /etc/shells.
config BUSYBOX_REMOVE_SHELL
bool "remove-shell (3 kb)"
default y if BUSYBOX_DESKTOP
help
Remove shells from /etc/shells.
config BUSYBOX_ADDGROUP
bool "addgroup (8.6 kb)"
default y
select BUSYBOX_LONG_OPTS
help
Utility for creating a new group account.
config BUSYBOX_FEATURE_ADDUSER_TO_GROUP
bool "Support adding users to groups"
default y
depends on BUSYBOX_ADDGROUP
help
If called with two non-option arguments,
addgroup will add an existing user to an
existing group.
config BUSYBOX_ADDUSER
bool "adduser (15 kb)"
default y
select BUSYBOX_LONG_OPTS
help
Utility for creating a new user account.
config BUSYBOX_FEATURE_CHECK_NAMES
bool "Enable sanity check on user/group names in adduser and addgroup"
default n
depends on BUSYBOX_ADDUSER || BUSYBOX_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_LAST_ID
int "Last valid uid or gid for adduser and addgroup"
depends on BUSYBOX_ADDUSER || BUSYBOX_ADDGROUP
default 60000
help
Last valid uid or gid for adduser and addgroup
config BUSYBOX_FIRST_SYSTEM_ID
int "First valid system uid or gid for adduser and addgroup"
depends on BUSYBOX_ADDUSER || BUSYBOX_ADDGROUP
range 0 BUSYBOX_LAST_ID
default 100
help
First valid system uid or gid for adduser and addgroup
config BUSYBOX_LAST_SYSTEM_ID
int "Last valid system uid or gid for adduser and addgroup"
depends on BUSYBOX_ADDUSER || BUSYBOX_ADDGROUP
range BUSYBOX_FIRST_SYSTEM_ID BUSYBOX_LAST_ID
default 999
help
Last valid system uid or gid for adduser and addgroup
config BUSYBOX_CHPASSWD
bool "chpasswd (18 kb)"
default y
help
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_FEATURE_DEFAULT_PASSWD_ALGO
string "Default encryption method (passwd -a, cryptpw -m, chpasswd -c ALG)"
default "des"
depends on BUSYBOX_PASSWD || BUSYBOX_CRYPTPW || BUSYBOX_CHPASSWD
help
Possible choices are "d[es]", "m[d5]", "s[ha256]" or "sha512".
config BUSYBOX_CRYPTPW
bool "cryptpw (14 kb)"
default y
help
Encrypts the given password with the crypt(3) libc function
using the given salt.
config BUSYBOX_MKPASSWD
bool "mkpasswd (15 kb)"
default y
help
Encrypts the given password with the crypt(3) libc function
using the given salt. Debian has this utility under mkpasswd
name. Busybox provides mkpasswd as an alias for cryptpw.
config BUSYBOX_DELUSER
bool "deluser (9.1 kb)"
default y
help
Utility for deleting a user account.
config BUSYBOX_DELGROUP
bool "delgroup (6.4 kb)"
default y
help
Utility for deleting a group account.
config BUSYBOX_FEATURE_DEL_USER_FROM_GROUP
bool "Support removing users from groups"
default y
depends on BUSYBOX_DELGROUP
help
If called with two non-option arguments, deluser
or delgroup will remove an user from a specified group.
config BUSYBOX_GETTY
bool "getty (10 kb)"
default y
select BUSYBOX_FEATURE_SYSLOG
help
getty lets you log in on a tty. It is normally invoked by init.
Note that you can save a few bytes by disabling it and
using login applet directly.
If you need to reset tty attributes before calling login,
this script approximates getty:
exec </dev/$1 >/dev/$1 2>&1 || exit 1
reset
stty sane; stty ispeed 38400; stty ospeed 38400
printf "%s login: " "`hostname`"
read -r login
exec /bin/login "$login"
config BUSYBOX_LOGIN
bool "login (24 kb)"
default y
select BUSYBOX_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_LOGIN_SESSION_AS_CHILD
bool "Run logged in session in a child process"
default y if BUSYBOX_PAM
depends on BUSYBOX_LOGIN
help
Run the logged in session in a child process. This allows
login to clean up things such as utmp entries or PAM sessions
when the login session is complete. If you use PAM, you
almost always would want this to be set to Y, else PAM session
will not be cleaned up.
config BUSYBOX_LOGIN_SCRIPTS
bool "Support login scripts"
depends on BUSYBOX_LOGIN
default y
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_FEATURE_NOLOGIN
bool "Support /etc/nologin"
default y
depends on BUSYBOX_LOGIN
help
The file /etc/nologin is used by (some versions of) login(1).
If it exists, non-root logins are prohibited.
config BUSYBOX_FEATURE_SECURETTY
bool "Support /etc/securetty"
default y
depends on BUSYBOX_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_PASSWD
bool "passwd (21 kb)"
default y
select BUSYBOX_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_FEATURE_PASSWD_WEAK_CHECK
bool "Check new passwords for weakness"
default y
depends on BUSYBOX_PASSWD
help
With this option passwd will refuse new passwords which are "weak".
config BUSYBOX_SU
bool "su (19 kb)"
default y
select BUSYBOX_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_FEATURE_SU_SYSLOG
bool "Log to syslog all attempts to use su"
default y
depends on BUSYBOX_SU
config BUSYBOX_FEATURE_SU_CHECKS_SHELLS
bool "If user's shell is not in /etc/shells, disallow -s PROG"
default y
depends on BUSYBOX_SU
config BUSYBOX_FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY
bool "Allow blank passwords only on TTYs in /etc/securetty"
default n
depends on BUSYBOX_SU
config BUSYBOX_SULOGIN
bool "sulogin (17 kb)"
default y
select BUSYBOX_FEATURE_SYSLOG
help
sulogin is invoked when the system goes into single user
mode (this is done through an entry in inittab).
config BUSYBOX_VLOCK
bool "vlock (17 kb)"
default y
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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