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.
85 config FEATURE_CHECK_NAMES
86 bool "Enable sanity check on user/group names in adduser and addgroup"
88 depends on ADDUSER || ADDGROUP
90 Enable sanity check on user and group names in adduser and addgroup.
91 To avoid problems, the user or group name should consist only of
92 letters, digits, underscores, periods, at signs and dashes,
93 and not start with a dash (as defined by IEEE Std 1003.1-2001).
94 For compatibility with Samba machine accounts "$" is also supported
95 at the end of the user or group name.
101 Utility for creating a new user account.
103 config FEATURE_ADDUSER_LONG_OPTIONS
104 bool "Enable long options"
106 depends on ADDUSER && GETOPT_LONG
108 Support long options for the adduser applet.
114 Utility for deleting a user account.
119 select FEATURE_SYSLOG
121 getty lets you log in on a tty, it is normally invoked by init.
124 bool "Support utmp file"
125 depends on GETTY || LOGIN || SU || WHO
128 The file /var/run/utmp is used to track who is currently logged in.
131 bool "Support wtmp file"
132 depends on GETTY || LOGIN || SU || LAST
136 The file /var/run/wtmp is used to track when user's have logged into
137 and logged out of the system.
143 select FEATURE_SYSLOG
145 login is used when signing onto a system.
147 Note that Busybox binary must be setuid root for this applet to
151 bool "Support for PAM (Pluggable Authentication Modules)"
155 Use PAM in login(1) instead of direct access to password database.
158 bool "Support for login scripts"
162 Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
163 just prior to switching from root to logged-in user.
165 config FEATURE_NOLOGIN
166 bool "Support for /etc/nologin"
170 The file /etc/nologin is used by (some versions of) login(1).
171 If it exists, non-root logins are prohibited.
173 config FEATURE_SECURETTY
174 bool "Support for /etc/securetty"
178 The file /etc/securetty is used by (some versions of) login(1).
179 The file contains the device names of tty lines (one per line,
180 without leading /dev/) on which root is allowed to login.
186 select FEATURE_SYSLOG
188 passwd changes passwords for user and group accounts. A normal user
189 may only change the password for his/her own account, the super user
190 may change the password for any account. The administrator of a group
191 may change the password for the group.
193 Note that Busybox binary must be setuid root for this applet to
196 config FEATURE_PASSWD_WEAK_CHECK
197 bool "Check new passwords for weakness"
201 With this option passwd will refuse new passwords which are "weak".
207 Applet for crypting a string.
213 chpasswd reads a file of user name and password pairs from
214 standard input and uses this information to update a group of
221 select FEATURE_SYSLOG
223 su is used to become another user during a login session.
224 Invoked without a username, su defaults to becoming the super user.
226 Note that Busybox binary must be setuid root for this applet to
229 config FEATURE_SU_SYSLOG
230 bool "Enable su to write to syslog"
234 config FEATURE_SU_CHECKS_SHELLS
235 bool "Enable su to check user's shell to be listed in /etc/shells"
242 select FEATURE_SYSLOG
244 sulogin is invoked when the system goes into single user
245 mode (this is done through an entry in inittab).
252 Build the "vlock" applet which allows you to lock (virtual) terminals.
254 Note that Busybox binary must be setuid root for this applet to