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 BUSYBOX_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
16 config BUSYBOX_CONFIG_USE_BB_SHADOW
17 bool " Use busybox shadow password functions"
19 depends on BUSYBOX_CONFIG_USE_BB_PWD_GRP && BUSYBOX_CONFIG_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.
35 config BUSYBOX_CONFIG_USE_BB_PWD_GRP
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.
56 config BUSYBOX_CONFIG_ADDGROUP
60 Utility for creating a new group account.
62 config BUSYBOX_CONFIG_FEATURE_ADDUSER_TO_GROUP
63 bool "Support for adding users to groups"
65 depends on BUSYBOX_CONFIG_ADDGROUP
67 If called with two non-option arguments,
68 addgroup will add an existing user to an
71 config BUSYBOX_CONFIG_DELGROUP
75 Utility for deleting a group account.
77 config BUSYBOX_CONFIG_FEATURE_DEL_USER_FROM_GROUP
78 bool "Support for removing users from groups."
80 depends on BUSYBOX_CONFIG_DELGROUP
82 If called with two non-option arguments, deluser
83 or delgroup will remove an user from a specified group.
85 config BUSYBOX_CONFIG_ADDUSER
89 Utility for creating a new user account.
91 config BUSYBOX_CONFIG_DELUSER
95 Utility for deleting a user account.
97 config BUSYBOX_CONFIG_GETTY
100 select BUSYBOX_CONFIG_FEATURE_SYSLOG
102 getty lets you log in on a tty, it is normally invoked by init.
104 config BUSYBOX_CONFIG_FEATURE_UTMP
105 bool "Support utmp file"
106 depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_WHO
109 The file /var/run/utmp is used to track who is currently logged in.
111 config BUSYBOX_CONFIG_FEATURE_WTMP
112 bool "Support wtmp file"
113 depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_LAST
115 select BUSYBOX_CONFIG_FEATURE_UTMP
117 The file /var/run/wtmp is used to track when user's have logged into
118 and logged out of the system.
120 config BUSYBOX_CONFIG_LOGIN
123 select BUSYBOX_CONFIG_FEATURE_SUID
124 select BUSYBOX_CONFIG_FEATURE_SYSLOG
126 login is used when signing onto a system.
128 Note that Busybox binary must be setuid root for this applet to
131 config BUSYBOX_CONFIG_PAM
132 bool "Support for PAM (Pluggable Authentication Modules)"
134 depends on BUSYBOX_CONFIG_LOGIN
136 Use PAM in login(1) instead of direct access to password database.
138 config BUSYBOX_CONFIG_LOGIN_SCRIPTS
139 bool "Support for login scripts"
140 depends on BUSYBOX_CONFIG_LOGIN
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 BUSYBOX_CONFIG_FEATURE_NOLOGIN
147 bool "Support for /etc/nologin"
149 depends on BUSYBOX_CONFIG_LOGIN
151 The file /etc/nologin is used by (some versions of) login(1).
152 If it exists, non-root logins are prohibited.
154 config BUSYBOX_CONFIG_FEATURE_SECURETTY
155 bool "Support for /etc/securetty"
157 depends on BUSYBOX_CONFIG_LOGIN
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.
163 config BUSYBOX_CONFIG_PASSWD
166 select BUSYBOX_CONFIG_FEATURE_SUID
167 select BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_PASSWD_WEAK_CHECK
178 bool "Check new passwords for weakness"
180 depends on BUSYBOX_CONFIG_PASSWD
182 With this option passwd will refuse new passwords which are "weak".
184 config BUSYBOX_CONFIG_CRYPTPW
188 Applet for crypting a string.
190 config BUSYBOX_CONFIG_CHPASSWD
194 chpasswd reads a file of user name and password pairs from
195 standard input and uses this information to update a group of
198 config BUSYBOX_CONFIG_SU
201 select BUSYBOX_CONFIG_FEATURE_SUID
202 select BUSYBOX_CONFIG_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 BUSYBOX_CONFIG_FEATURE_SU_SYSLOG
211 bool "Enable su to write to syslog"
213 depends on BUSYBOX_CONFIG_SU
215 config BUSYBOX_CONFIG_FEATURE_SU_CHECKS_SHELLS
216 bool "Enable su to check user's shell to be listed in /etc/shells"
217 depends on BUSYBOX_CONFIG_SU
220 config BUSYBOX_CONFIG_SULOGIN
223 select BUSYBOX_CONFIG_FEATURE_SYSLOG
225 sulogin is invoked when the system goes into single user
226 mode (this is done through an entry in inittab).
228 config BUSYBOX_CONFIG_VLOCK
231 select BUSYBOX_CONFIG_FEATURE_SUID
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