package/utils/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 docs/Kconfig-language.txt.
   5 #
   6
   7 menu "Login/Password Management Utilities"
   8
   9 config BUSYBOX_CONFIG_FEATURE_SHADOWPASSWDS
  10         bool "Support shadow passwords"
  11         default BUSYBOX_DEFAULT_FEATURE_SHADOWPASSWDS
  12         help
  13         Build support for shadow password in /etc/shadow. This file is only
  14         readable by root and thus the encrypted passwords are no longer
  15         publicly readable.
  16
  17 config BUSYBOX_CONFIG_USE_BB_PWD_GRP
  18         bool "Use internal password and group functions rather than system functions"
  19         default BUSYBOX_DEFAULT_USE_BB_PWD_GRP
  20         help
  21         If you leave this disabled, busybox will use the system's password
  22         and group 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 password and group functions to work. This generally
  26         makes your embedded system quite a bit larger.
  27
  28         Enabling this option will cause busybox to directly access the
  29         system's /etc/password, /etc/group files (and your system will be
  30         smaller, and I will get fewer emails asking about how glibc NSS
  31         works). When this option is enabled, you will not be able to use
  32         PAM to access remote LDAP password servers and whatnot. And if you
  33         want hostname resolution to work with glibc, you still need the
  34         /lib/libnss_* libraries.
  35
  36         If you need to use glibc's nsswitch.conf mechanism
  37         (e.g. if user/group database is NOT stored in /etc/passwd etc),
  38         you must NOT use this option.
  39
  40         If you enable this option, it will add about 1.5k.
  41
  42 config BUSYBOX_CONFIG_USE_BB_SHADOW
  43         bool "Use internal shadow password functions"
  44         default BUSYBOX_DEFAULT_USE_BB_SHADOW
  45         depends on BUSYBOX_CONFIG_USE_BB_PWD_GRP && BUSYBOX_CONFIG_FEATURE_SHADOWPASSWDS
  46         help
  47         If you leave this disabled, busybox will use the system's shadow
  48         password handling functions. And if you are using the GNU C library
  49         (glibc), you will then need to install the /etc/nsswitch.conf
  50         configuration file and the required /lib/libnss_* libraries in
  51         order for the shadow password functions to work. This generally
  52         makes your embedded system quite a bit larger.
  53
  54         Enabling this option will cause busybox to directly access the
  55         system's /etc/shadow file when handling shadow passwords. This
  56         makes your system smaller (and I will get fewer emails asking about
  57         how glibc NSS works). When this option is enabled, you will not be
  58         able to use PAM to access shadow passwords from remote LDAP
  59         password servers and whatnot.
  60
  61 config BUSYBOX_CONFIG_USE_BB_CRYPT
  62         bool "Use internal crypt functions"
  63         default BUSYBOX_DEFAULT_USE_BB_CRYPT
  64         help
  65         Busybox has internal DES and MD5 crypt functions.
  66         They produce results which are identical to corresponding
  67         standard C library functions.
  68
  69         If you leave this disabled, busybox will use the system's
  70         crypt functions. Most C libraries use large (~70k)
  71         static buffers there, and also combine them with more general
  72         DES encryption/decryption.
  73
  74         For busybox, having large static buffers is undesirable,
  75         especially on NOMMU machines. Busybox also doesn't need
  76         DES encryption/decryption and can do with smaller code.
  77
  78         If you enable this option, it will add about 4.8k of code
  79         if you are building dynamically linked executable.
  80         In static build, it makes code _smaller_ by about 1.2k,
  81         and likely many kilobytes less of bss.
  82
  83 config BUSYBOX_CONFIG_USE_BB_CRYPT_SHA
  84         bool "Enable SHA256/512 crypt functions"
  85         default BUSYBOX_DEFAULT_USE_BB_CRYPT_SHA
  86         depends on BUSYBOX_CONFIG_USE_BB_CRYPT
  87         help
  88         Enable this if you have passwords starting with "$5$" or "$6$"
  89         in your /etc/passwd or /etc/shadow files. These passwords
  90         are hashed using SHA256 and SHA512 algorithms. Support for them
  91         was added to glibc in 2008.
  92         With this option off, login will fail password check for any
  93         user which has password encrypted with these algorithms.
  94
  95 config BUSYBOX_CONFIG_ADD_SHELL
  96         bool "add-shell (3.1 kb)"
  97         default BUSYBOX_DEFAULT_ADD_SHELL if BUSYBOX_CONFIG_DESKTOP
  98         help
  99         Add shells to /etc/shells.
 100
 101 config BUSYBOX_CONFIG_REMOVE_SHELL
 102         bool "remove-shell (3 kb)"
 103         default BUSYBOX_DEFAULT_REMOVE_SHELL if BUSYBOX_CONFIG_DESKTOP
 104         help
 105         Remove shells from /etc/shells.
 106 config BUSYBOX_CONFIG_ADDGROUP
 107         bool "addgroup (8.6 kb)"
 108         default BUSYBOX_DEFAULT_ADDGROUP
 109         select BUSYBOX_CONFIG_LONG_OPTS
 110         help
 111         Utility for creating a new group account.
 112
 113 config BUSYBOX_CONFIG_FEATURE_ADDUSER_TO_GROUP
 114         bool "Support adding users to groups"
 115         default BUSYBOX_DEFAULT_FEATURE_ADDUSER_TO_GROUP
 116         depends on BUSYBOX_CONFIG_ADDGROUP
 117         help
 118         If called with two non-option arguments,
 119         addgroup will add an existing user to an
 120         existing group.
 121 config BUSYBOX_CONFIG_ADDUSER
 122         bool "adduser (15 kb)"
 123         default BUSYBOX_DEFAULT_ADDUSER
 124         select BUSYBOX_CONFIG_LONG_OPTS
 125         help
 126         Utility for creating a new user account.
 127
 128 config BUSYBOX_CONFIG_FEATURE_CHECK_NAMES
 129         bool "Enable sanity check on user/group names in adduser and addgroup"
 130         default BUSYBOX_DEFAULT_FEATURE_CHECK_NAMES
 131         depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
 132         help
 133         Enable sanity check on user and group names in adduser and addgroup.
 134         To avoid problems, the user or group name should consist only of
 135         letters, digits, underscores, periods, at signs and dashes,
 136         and not start with a dash (as defined by IEEE Std 1003.1-2001).
 137         For compatibility with Samba machine accounts "$" is also supported
 138         at the end of the user or group name.
 139
 140 config BUSYBOX_CONFIG_LAST_ID
 141         int "Last valid uid or gid for adduser and addgroup"
 142         depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
 143         default BUSYBOX_DEFAULT_LAST_ID
 144         help
 145         Last valid uid or gid for adduser and addgroup
 146
 147 config BUSYBOX_CONFIG_FIRST_SYSTEM_ID
 148         int "First valid system uid or gid for adduser and addgroup"
 149         depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
 150         range 0 BUSYBOX_CONFIG_LAST_ID
 151         default BUSYBOX_DEFAULT_FIRST_SYSTEM_ID
 152         help
 153         First valid system uid or gid for adduser and addgroup
 154
 155 config BUSYBOX_CONFIG_LAST_SYSTEM_ID
 156         int "Last valid system uid or gid for adduser and addgroup"
 157         depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
 158         range BUSYBOX_CONFIG_FIRST_SYSTEM_ID BUSYBOX_CONFIG_LAST_ID
 159         default BUSYBOX_DEFAULT_LAST_SYSTEM_ID
 160         help
 161         Last valid system uid or gid for adduser and addgroup
 162 config BUSYBOX_CONFIG_CHPASSWD
 163         bool "chpasswd (18 kb)"
 164         default BUSYBOX_DEFAULT_CHPASSWD
 165         help
 166         Reads a file of user name and password pairs from standard input
 167         and uses this information to update a group of existing users.
 168
 169 config BUSYBOX_CONFIG_FEATURE_DEFAULT_PASSWD_ALGO
 170         string "Default encryption method (passwd -a, cryptpw -m, chpasswd -c ALG)"
 171         default BUSYBOX_DEFAULT_FEATURE_DEFAULT_PASSWD_ALGO
 172         depends on BUSYBOX_CONFIG_PASSWD || BUSYBOX_CONFIG_CRYPTPW || BUSYBOX_CONFIG_CHPASSWD
 173         help
 174         Possible choices are "d[es]", "m[d5]", "s[ha256]" or "sha512".
 175 config BUSYBOX_CONFIG_CRYPTPW
 176         bool "cryptpw (14 kb)"
 177         default BUSYBOX_DEFAULT_CRYPTPW
 178         help
 179         Encrypts the given password with the crypt(3) libc function
 180         using the given salt.
 181
 182 config BUSYBOX_CONFIG_MKPASSWD
 183         bool "mkpasswd (15 kb)"
 184         default BUSYBOX_DEFAULT_MKPASSWD
 185         help
 186         Encrypts the given password with the crypt(3) libc function
 187         using the given salt. Debian has this utility under mkpasswd
 188         name. Busybox provides mkpasswd as an alias for cryptpw.
 189 config BUSYBOX_CONFIG_DELUSER
 190         bool "deluser (9.1 kb)"
 191         default BUSYBOX_DEFAULT_DELUSER
 192         help
 193         Utility for deleting a user account.
 194
 195 config BUSYBOX_CONFIG_DELGROUP
 196         bool "delgroup (6.4 kb)"
 197         default BUSYBOX_DEFAULT_DELGROUP
 198         help
 199         Utility for deleting a group account.
 200
 201 config BUSYBOX_CONFIG_FEATURE_DEL_USER_FROM_GROUP
 202         bool "Support removing users from groups"
 203         default BUSYBOX_DEFAULT_FEATURE_DEL_USER_FROM_GROUP
 204         depends on BUSYBOX_CONFIG_DELGROUP
 205         help
 206         If called with two non-option arguments, deluser
 207         or delgroup will remove an user from a specified group.
 208 config BUSYBOX_CONFIG_GETTY
 209         bool "getty (10 kb)"
 210         default BUSYBOX_DEFAULT_GETTY
 211         select BUSYBOX_CONFIG_FEATURE_SYSLOG
 212         help
 213         getty lets you log in on a tty. It is normally invoked by init.
 214
 215         Note that you can save a few bytes by disabling it and
 216         using login applet directly.
 217         If you need to reset tty attributes before calling login,
 218         this script approximates getty:
 219
 220         exec </dev/$1 >/dev/$1 2>&1 || exit 1
 221         reset
 222         stty sane; stty ispeed 38400; stty ospeed 38400
 223         printf "%s login: " "`hostname`"
 224         read -r login
 225         exec /bin/login "$login"
 226 config BUSYBOX_CONFIG_LOGIN
 227         bool "login (24 kb)"
 228         default BUSYBOX_DEFAULT_LOGIN
 229         select BUSYBOX_CONFIG_FEATURE_SYSLOG
 230         help
 231         login is used when signing onto a system.
 232
 233         Note that busybox binary must be setuid root for this applet to
 234         work properly.
 235
 236 config BUSYBOX_CONFIG_LOGIN_SESSION_AS_CHILD
 237         bool "Run logged in session in a child process"
 238         default BUSYBOX_DEFAULT_LOGIN_SESSION_AS_CHILD if BUSYBOX_CONFIG_PAM
 239         depends on BUSYBOX_CONFIG_LOGIN
 240         help
 241         Run the logged in session in a child process.  This allows
 242         login to clean up things such as utmp entries or PAM sessions
 243         when the login session is complete.  If you use PAM, you
 244         almost always would want this to be set to Y, else PAM session
 245         will not be cleaned up.
 246
 247 config BUSYBOX_CONFIG_LOGIN_SCRIPTS
 248         bool "Support login scripts"
 249         depends on BUSYBOX_CONFIG_LOGIN
 250         default BUSYBOX_DEFAULT_LOGIN_SCRIPTS
 251         help
 252         Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
 253         just prior to switching from root to logged-in user.
 254
 255 config BUSYBOX_CONFIG_FEATURE_NOLOGIN
 256         bool "Support /etc/nologin"
 257         default BUSYBOX_DEFAULT_FEATURE_NOLOGIN
 258         depends on BUSYBOX_CONFIG_LOGIN
 259         help
 260         The file /etc/nologin is used by (some versions of) login(1).
 261         If it exists, non-root logins are prohibited.
 262
 263 config BUSYBOX_CONFIG_FEATURE_SECURETTY
 264         bool "Support /etc/securetty"
 265         default BUSYBOX_DEFAULT_FEATURE_SECURETTY
 266         depends on BUSYBOX_CONFIG_LOGIN
 267         help
 268         The file /etc/securetty is used by (some versions of) login(1).
 269         The file contains the device names of tty lines (one per line,
 270         without leading /dev/) on which root is allowed to login.
 271 config BUSYBOX_CONFIG_PASSWD
 272         bool "passwd (21 kb)"
 273         default BUSYBOX_DEFAULT_PASSWD
 274         select BUSYBOX_CONFIG_FEATURE_SYSLOG
 275         help
 276         passwd changes passwords for user and group accounts. A normal user
 277         may only change the password for his/her own account, the super user
 278         may change the password for any account. The administrator of a group
 279         may change the password for the group.
 280
 281         Note that busybox binary must be setuid root for this applet to
 282         work properly.
 283
 284 config BUSYBOX_CONFIG_FEATURE_PASSWD_WEAK_CHECK
 285         bool "Check new passwords for weakness"
 286         default BUSYBOX_DEFAULT_FEATURE_PASSWD_WEAK_CHECK
 287         depends on BUSYBOX_CONFIG_PASSWD
 288         help
 289         With this option passwd will refuse new passwords which are "weak".
 290 config BUSYBOX_CONFIG_SU
 291         bool "su (19 kb)"
 292         default BUSYBOX_DEFAULT_SU
 293         select BUSYBOX_CONFIG_FEATURE_SYSLOG
 294         help
 295         su is used to become another user during a login session.
 296         Invoked without a username, su defaults to becoming the super user.
 297         Note that busybox binary must be setuid root for this applet to
 298         work properly.
 299
 300 config BUSYBOX_CONFIG_FEATURE_SU_SYSLOG
 301         bool "Log to syslog all attempts to use su"
 302         default BUSYBOX_DEFAULT_FEATURE_SU_SYSLOG
 303         depends on BUSYBOX_CONFIG_SU
 304
 305 config BUSYBOX_CONFIG_FEATURE_SU_CHECKS_SHELLS
 306         bool "If user's shell is not in /etc/shells, disallow -s PROG"
 307         default BUSYBOX_DEFAULT_FEATURE_SU_CHECKS_SHELLS
 308         depends on BUSYBOX_CONFIG_SU
 309
 310 config BUSYBOX_CONFIG_FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY
 311         bool "Allow blank passwords only on TTYs in /etc/securetty"
 312         default BUSYBOX_DEFAULT_FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY
 313         depends on BUSYBOX_CONFIG_SU
 314 config BUSYBOX_CONFIG_SULOGIN
 315         bool "sulogin (17 kb)"
 316         default BUSYBOX_DEFAULT_SULOGIN
 317         select BUSYBOX_CONFIG_FEATURE_SYSLOG
 318         help
 319         sulogin is invoked when the system goes into single user
 320         mode (this is done through an entry in inittab).
 321 config BUSYBOX_CONFIG_VLOCK
 322         bool "vlock (17 kb)"
 323         default BUSYBOX_DEFAULT_VLOCK
 324         help
 325         Build the "vlock" applet which allows you to lock (virtual) terminals.
 326
 327         Note that busybox binary must be setuid root for this applet to
 328         work properly.
 329
 330 endmenu