# # For a description of the syntax of this configuration file, # see scripts/kbuild/config-language.txt. # menu "Login/Password Management Utilities" config 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 CONFIG_USE_BB_SHADOW bool " Use busybox shadow password functions" default y depends on CONFIG_USE_BB_PWD_GRP && 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 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 enable this option, it will add about 1.5k to busybox. config CONFIG_ADDGROUP bool "addgroup" default n help Utility for creating a new group account. config CONFIG_DELGROUP bool "delgroup" default n help Utility for deleting a group account. config CONFIG_ADDUSER bool "adduser" default n help Utility for creating a new user account. config CONFIG_DELUSER bool "deluser" default n help Utility for deleting a user account. config CONFIG_GETTY bool "getty" default n help getty lets you log in on a tty, it is normally invoked by init. config CONFIG_FEATURE_UTMP bool "Support utmp file" depends on CONFIG_GETTY || CONFIG_LOGIN || CONFIG_SU || CONFIG_WHO default n help The file /var/run/utmp is used to track who is currently logged in. config CONFIG_FEATURE_WTMP bool "Support wtmp file" depends on CONFIG_GETTY || CONFIG_LOGIN || CONFIG_SU || CONFIG_LAST default n select 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 CONFIG_LOGIN bool "login" default n select CONFIG_FEATURE_SUID help login is used when signing onto a system. Note that Busybox binary must be setuid root for this applet to work properly. config CONFIG_FEATURE_SECURETTY bool "Support for /etc/securetty" default y depends on 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 CONFIG_PASSWD bool "passwd" default n select CONFIG_FEATURE_SUID 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 CONFIG_SU bool "su" default n select CONFIG_FEATURE_SUID 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 CONFIG_SULOGIN bool "sulogin" default n help sulogin is invoked when the system goes into single user mode (this is done through an entry in inittab). config CONFIG_VLOCK bool "vlock" default n select 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