2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
6 menu "Login/Password Management Utilities"
8 config FEATURE_SHADOWPASSWDS
9 bool "Support for shadow passwords"
12 Build support for shadow password in /etc/shadow. This file is only
13 readable by root and thus the encrypted passwords are no longer
17 bool " Use busybox shadow password functions"
19 depends on USE_BB_PWD_GRP && FEATURE_SHADOWPASSWDS
21 If you leave this disabled, busybox will use the system's shadow
22 password handling functions. And if you are using the GNU C library
23 (glibc), you will then need to install the /etc/nsswitch.conf
24 configuration file and the required /lib/libnss_* libraries in
25 order for the shadow password functions to work. This generally
26 makes your embedded system quite a bit larger.
28 Enabling this option will cause busybox to directly access the
29 system's /etc/shadow file when handling shadow passwords. This
30 makes your system smaller and I will get fewer emails asking about
31 how glibc NSS works). When this option is enabled, you will not be
32 able to use PAM to access shadow passwords from remote LDAP
33 password servers and whatnot.
36 bool "Use internal password and group functions rather than system functions"
39 If you leave this disabled, busybox will use the system's password
40 and group functions. And if you are using the GNU C library
41 (glibc), you will then need to install the /etc/nsswitch.conf
42 configuration file and the required /lib/libnss_* libraries in
43 order for the password and group functions to work. This generally
44 makes your embedded system quite a bit larger.
46 Enabling this option will cause busybox to directly access the
47 system's /etc/password, /etc/group files (and your system will be
48 smaller, and I will get fewer emails asking about how glibc NSS
49 works). When this option is enabled, you will not be able to use
50 PAM to access remote LDAP password servers and whatnot. And if you
51 want hostname resolution to work with glibc, you still need the
52 /lib/libnss_* libraries.
54 If you enable this option, it will add about 1.5k to busybox.
60 Utility for creating a new group account.
66 Utility for deleting a group account.
72 Utility for creating a new user account.
78 Utility for deleting a user account.
85 getty lets you log in on a tty, it is normally invoked by init.
88 bool "Support utmp file"
89 depends on GETTY || LOGIN || SU || WHO
92 The file /var/run/utmp is used to track who is currently logged in.
95 bool "Support wtmp file"
96 depends on GETTY || LOGIN || SU || LAST
100 The file /var/run/wtmp is used to track when user's have logged into
101 and logged out of the system.
107 select FEATURE_SYSLOG
109 login is used when signing onto a system.
111 Note that Busybox binary must be setuid root for this applet to
115 bool "Support for login scripts"
119 Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
120 just prior to swithching from root to logged-in user.
122 config FEATURE_SECURETTY
123 bool "Support for /etc/securetty"
127 The file /etc/securetty is used by (some versions of) login(1).
128 The file contains the device names of tty lines (one per line,
129 without leading /dev/) on which root is allowed to login.
135 select FEATURE_SYSLOG
137 passwd changes passwords for user and group accounts. A normal user
138 may only change the password for his/her own account, the super user
139 may change the password for any account. The administrator of a group
140 may change the password for the group.
142 Note that Busybox binary must be setuid root for this applet to
149 select FEATURE_SYSLOG
151 su is used to become another user during a login session.
152 Invoked without a username, su defaults to becoming the super user.
154 Note that Busybox binary must be setuid root for this applet to
158 bool "Support for syslog in su"
162 Enables support for syslog in su.
167 select FEATURE_SYSLOG
169 sulogin is invoked when the system goes into single user
170 mode (this is done through an entry in inittab).
177 Build the "vlock" applet which allows you to lock (virtual) terminals.
179 Note that Busybox binary must be setuid root for this applet to