Root/package/busybox/config/loginutils/Config.in

1# DO NOT EDIT. This file is generated from Config.src
2#
3# For a description of the syntax of this configuration file,
4# see scripts/kbuild/config-language.txt.
5#
6
7menu "Login/Password Management Utilities"
8
9config BUSYBOX_CONFIG_ADD_SHELL
10       bool "add-shell"
11       default n if BUSYBOX_CONFIG_DESKTOP
12       help
13         Add shells to /etc/shells.
14
15config BUSYBOX_CONFIG_REMOVE_SHELL
16       bool "remove-shell"
17       default n if BUSYBOX_CONFIG_DESKTOP
18       help
19         Remove shells from /etc/shells.
20
21config BUSYBOX_CONFIG_FEATURE_SHADOWPASSWDS
22    bool "Support for shadow passwords"
23    default y
24    help
25      Build support for shadow password in /etc/shadow. This file is only
26      readable by root and thus the encrypted passwords are no longer
27      publicly readable.
28
29config BUSYBOX_CONFIG_USE_BB_PWD_GRP
30    bool "Use internal password and group functions rather than system functions"
31    default n
32    help
33      If you leave this disabled, busybox will use the system's password
34      and group functions. And if you are using the GNU C library
35      (glibc), you will then need to install the /etc/nsswitch.conf
36      configuration file and the required /lib/libnss_* libraries in
37      order for the password and group functions to work. This generally
38      makes your embedded system quite a bit larger.
39
40      Enabling this option will cause busybox to directly access the
41      system's /etc/password, /etc/group files (and your system will be
42      smaller, and I will get fewer emails asking about how glibc NSS
43      works). When this option is enabled, you will not be able to use
44      PAM to access remote LDAP password servers and whatnot. And if you
45      want hostname resolution to work with glibc, you still need the
46      /lib/libnss_* libraries.
47
48      If you need to use glibc's nsswitch.conf mechanism
49      (e.g. if user/group database is NOT stored in /etc/passwd etc),
50      you must NOT use this option.
51
52      If you enable this option, it will add about 1.5k.
53
54config BUSYBOX_CONFIG_USE_BB_SHADOW
55    bool "Use internal shadow password functions"
56    default n
57    depends on BUSYBOX_CONFIG_USE_BB_PWD_GRP && BUSYBOX_CONFIG_FEATURE_SHADOWPASSWDS
58    help
59      If you leave this disabled, busybox will use the system's shadow
60      password handling functions. And if you are using the GNU C library
61      (glibc), you will then need to install the /etc/nsswitch.conf
62      configuration file and the required /lib/libnss_* libraries in
63      order for the shadow password functions to work. This generally
64      makes your embedded system quite a bit larger.
65
66      Enabling this option will cause busybox to directly access the
67      system's /etc/shadow file when handling shadow passwords. This
68      makes your system smaller (and I will get fewer emails asking about
69      how glibc NSS works). When this option is enabled, you will not be
70      able to use PAM to access shadow passwords from remote LDAP
71      password servers and whatnot.
72
73config BUSYBOX_CONFIG_USE_BB_CRYPT
74    bool "Use internal crypt functions"
75    default n
76    help
77      Busybox has internal DES and MD5 crypt functions.
78      They produce results which are identical to corresponding
79      standard C library functions.
80
81      If you leave this disabled, busybox will use the system's
82      crypt functions. Most C libraries use large (~70k)
83      static buffers there, and also combine them with more general
84      DES encryption/decryption.
85
86      For busybox, having large static buffers is undesirable,
87      especially on NOMMU machines. Busybox also doesn't need
88      DES encryption/decryption and can do with smaller code.
89
90      If you enable this option, it will add about 4.8k of code
91      if you are building dynamically linked executable.
92      In static build, it makes code _smaller_ by about 1.2k,
93      and likely many kilobytes less of bss.
94
95config BUSYBOX_CONFIG_USE_BB_CRYPT_SHA
96    bool "Enable SHA256/512 crypt functions"
97    default n
98    depends on BUSYBOX_CONFIG_USE_BB_CRYPT
99    help
100      Enable this if you have passwords starting with "$5$" or "$6$"
101      in your /etc/passwd or /etc/shadow files. These passwords
102      are hashed using SHA256 and SHA512 algorithms. Support for them
103      was added to glibc in 2008.
104      With this option off, login will fail password check for any
105      user which has password encrypted with these algorithms.
106
107config BUSYBOX_CONFIG_ADDUSER
108    bool "adduser"
109    default n
110    help
111      Utility for creating a new user account.
112
113config BUSYBOX_CONFIG_FEATURE_ADDUSER_LONG_OPTIONS
114    bool "Enable long options"
115    default n
116    depends on BUSYBOX_CONFIG_ADDUSER && BUSYBOX_CONFIG_LONG_OPTS
117    help
118      Support long options for the adduser applet.
119
120config BUSYBOX_CONFIG_FEATURE_CHECK_NAMES
121    bool "Enable sanity check on user/group names in adduser and addgroup"
122    default n
123    depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
124    help
125      Enable sanity check on user and group names in adduser and addgroup.
126      To avoid problems, the user or group name should consist only of
127      letters, digits, underscores, periods, at signs and dashes,
128      and not start with a dash (as defined by IEEE Std 1003.1-2001).
129      For compatibility with Samba machine accounts "$" is also supported
130      at the end of the user or group name.
131
132config BUSYBOX_CONFIG_FIRST_SYSTEM_ID
133    int "First valid system uid or gid for adduser and addgroup"
134    depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
135    range 0 64900
136    default 100
137    help
138      First valid system uid or gid for adduser and addgroup
139
140config BUSYBOX_CONFIG_LAST_SYSTEM_ID
141    int "Last valid system uid or gid for adduser and addgroup"
142    depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
143    range 0 64900
144    default 999
145    help
146      Last valid system uid or gid for adduser and addgroup
147
148config BUSYBOX_CONFIG_ADDGROUP
149    bool "addgroup"
150    default n
151    help
152      Utility for creating a new group account.
153
154config BUSYBOX_CONFIG_FEATURE_ADDGROUP_LONG_OPTIONS
155    bool "Enable long options"
156    default n
157    depends on BUSYBOX_CONFIG_ADDGROUP && BUSYBOX_CONFIG_LONG_OPTS
158    help
159      Support long options for the addgroup applet.
160
161config BUSYBOX_CONFIG_FEATURE_ADDUSER_TO_GROUP
162    bool "Support for adding users to groups"
163    default n
164    depends on BUSYBOX_CONFIG_ADDGROUP
165    help
166      If called with two non-option arguments,
167      addgroup will add an existing user to an
168      existing group.
169
170config BUSYBOX_CONFIG_DELUSER
171    bool "deluser"
172    default n
173    help
174      Utility for deleting a user account.
175
176config BUSYBOX_CONFIG_DELGROUP
177    bool "delgroup"
178    default n
179    help
180      Utility for deleting a group account.
181
182config BUSYBOX_CONFIG_FEATURE_DEL_USER_FROM_GROUP
183    bool "Support for removing users from groups"
184    default n
185    depends on BUSYBOX_CONFIG_DELGROUP
186    help
187      If called with two non-option arguments, deluser
188      or delgroup will remove an user from a specified group.
189
190config BUSYBOX_CONFIG_GETTY
191    bool "getty"
192    default n
193    select BUSYBOX_CONFIG_FEATURE_SYSLOG
194    help
195      getty lets you log in on a tty. It is normally invoked by init.
196
197      Note that you can save a few bytes by disabling it and
198      using login applet directly.
199      If you need to reset tty attributes before calling login,
200      this script approximates getty:
201
202      exec </dev/$1 >/dev/$1 2>&1 || exit 1
203      reset
204      stty sane; stty ispeed 38400; stty ospeed 38400
205      printf "%s login: " "`hostname`"
206      read -r login
207      exec /bin/login "$login"
208
209config BUSYBOX_CONFIG_LOGIN
210    bool "login"
211    default n
212    select BUSYBOX_CONFIG_FEATURE_SYSLOG
213    help
214      login is used when signing onto a system.
215
216      Note that Busybox binary must be setuid root for this applet to
217      work properly.
218
219config BUSYBOX_CONFIG_PAM
220    bool "Support for PAM (Pluggable Authentication Modules)"
221    default n
222    depends on DEVEL
223    depends on BUSYBOX_CONFIG_LOGIN
224    help
225      Use PAM in login(1) instead of direct access to password database.
226
227      OpenWrt specific:
228        You should install libpam from the packages feed and compile it
229        before trying to build busysbox.
230
231config BUSYBOX_CONFIG_LOGIN_SCRIPTS
232    bool "Support for login scripts"
233    depends on BUSYBOX_CONFIG_LOGIN
234    default n
235    help
236      Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
237      just prior to switching from root to logged-in user.
238
239config BUSYBOX_CONFIG_FEATURE_NOLOGIN
240    bool "Support for /etc/nologin"
241    default n
242    depends on BUSYBOX_CONFIG_LOGIN
243    help
244      The file /etc/nologin is used by (some versions of) login(1).
245      If it exists, non-root logins are prohibited.
246
247config BUSYBOX_CONFIG_FEATURE_SECURETTY
248    bool "Support for /etc/securetty"
249    default n
250    depends on BUSYBOX_CONFIG_LOGIN
251    help
252      The file /etc/securetty is used by (some versions of) login(1).
253      The file contains the device names of tty lines (one per line,
254      without leading /dev/) on which root is allowed to login.
255
256config BUSYBOX_CONFIG_PASSWD
257    bool "passwd"
258    default y
259    select BUSYBOX_CONFIG_FEATURE_SYSLOG
260    help
261      passwd changes passwords for user and group accounts. A normal user
262      may only change the password for his/her own account, the super user
263      may change the password for any account. The administrator of a group
264      may change the password for the group.
265
266      Note that Busybox binary must be setuid root for this applet to
267      work properly.
268
269config BUSYBOX_CONFIG_FEATURE_PASSWD_WEAK_CHECK
270    bool "Check new passwords for weakness"
271    default y
272    depends on BUSYBOX_CONFIG_PASSWD
273    help
274      With this option passwd will refuse new passwords which are "weak".
275
276config BUSYBOX_CONFIG_CRYPTPW
277    bool "cryptpw"
278    default n
279    help
280      Encrypts the given password with the crypt(3) libc function
281      using the given salt. Debian has this utility under mkpasswd
282      name. Busybox provides mkpasswd as an alias for cryptpw.
283
284config BUSYBOX_CONFIG_CHPASSWD
285    bool "chpasswd"
286    default n
287    help
288      Reads a file of user name and password pairs from standard input
289      and uses this information to update a group of existing users.
290
291config BUSYBOX_CONFIG_SU
292    bool "su"
293    default n
294    select BUSYBOX_CONFIG_FEATURE_SYSLOG
295    help
296      su is used to become another user during a login session.
297      Invoked without a username, su defaults to becoming the super user.
298
299      Note that Busybox binary must be setuid root for this applet to
300      work properly.
301
302config BUSYBOX_CONFIG_FEATURE_SU_SYSLOG
303    bool "Enable su to write to syslog"
304    default n
305    depends on BUSYBOX_CONFIG_SU
306
307config BUSYBOX_CONFIG_FEATURE_SU_CHECKS_SHELLS
308    bool "Enable su to check user's shell to be listed in /etc/shells"
309    depends on BUSYBOX_CONFIG_SU
310    default n
311
312config BUSYBOX_CONFIG_SULOGIN
313    bool "sulogin"
314    default n
315    select BUSYBOX_CONFIG_FEATURE_SYSLOG
316    help
317      sulogin is invoked when the system goes into single user
318      mode (this is done through an entry in inittab).
319
320config BUSYBOX_CONFIG_VLOCK
321    bool "vlock"
322    default n
323    help
324      Build the "vlock" applet which allows you to lock (virtual) terminals.
325
326      Note that Busybox binary must be setuid root for this applet to
327      work properly.
328
329endmenu
330

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