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.
62 config FEATURE_ADDUSER_TO_GROUP
63 bool "Support for adding users to groups"
67 If called with two non-option arguments,
68 addgroup will add an existing user to an
75 Utility for deleting a group account.
77 config FEATURE_DEL_USER_FROM_GROUP
78 bool "Support for removing users from groups."
82 If called with two non-option arguments, deluser
83 or delgroup will remove an user from a specified group.
89 Utility for creating a new user account.
95 Utility for deleting a user account.
100 select FEATURE_SYSLOG
102 getty lets you log in on a tty, it is normally invoked by init.
105 bool "Support utmp file"
106 depends on GETTY || LOGIN || SU || WHO
109 The file /var/run/utmp is used to track who is currently logged in.
112 bool "Support wtmp file"
113 depends on GETTY || LOGIN || SU || LAST
117 The file /var/run/wtmp is used to track when user's have logged into
118 and logged out of the system.
124 select FEATURE_SYSLOG
126 login is used when signing onto a system.
128 Note that Busybox binary must be setuid root for this applet to
132 bool "Support for PAM (Pluggable Authentication Modules)"
136 Use PAM in login(1) instead of direct access to password database.
139 bool "Support for login scripts"
143 Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
144 just prior to switching from root to logged-in user.
146 config FEATURE_NOLOGIN
147 bool "Support for /etc/nologin"
151 The file /etc/nologin is used by (some versions of) login(1).
152 If it exists, non-root logins are prohibited.
154 config FEATURE_SECURETTY
155 bool "Support for /etc/securetty"
159 The file /etc/securetty is used by (some versions of) login(1).
160 The file contains the device names of tty lines (one per line,
161 without leading /dev/) on which root is allowed to login.
167 select FEATURE_SYSLOG
169 passwd changes passwords for user and group accounts. A normal user
170 may only change the password for his/her own account, the super user
171 may change the password for any account. The administrator of a group
172 may change the password for the group.
174 Note that Busybox binary must be setuid root for this applet to
177 config FEATURE_PASSWD_WEAK_CHECK
178 bool "Check new passwords for weakness"
182 With this option passwd will refuse new passwords which are "weak".
188 Applet for crypting a string.
194 chpasswd reads a file of user name and password pairs from
195 standard input and uses this information to update a group of
202 select FEATURE_SYSLOG
204 su is used to become another user during a login session.
205 Invoked without a username, su defaults to becoming the super user.
207 Note that Busybox binary must be setuid root for this applet to
210 config FEATURE_SU_SYSLOG
211 bool "Enable su to write to syslog"
215 config FEATURE_SU_CHECKS_SHELLS
216 bool "Enable su to check user's shell to be listed in /etc/shells"
223 select FEATURE_SYSLOG
225 sulogin is invoked when the system goes into single user
226 mode (this is done through an entry in inittab).
233 Build the "vlock" applet which allows you to lock (virtual) terminals.
235 Note that Busybox binary must be setuid root for this applet to