bool "Support for shadow passwords"
default n
help
- Build support for shadow password in /etc/shadow. This file is only
+ Build support for shadow password in /etc/shadow. This file is only
readable by root and thus the encrypted passwords are no longer
publicly readable.
+config BUSYBOX_CONFIG_USE_BB_PWD_GRP
+ bool "Use internal password and group functions rather than system functions"
+ default n
+ help
+ If you leave this disabled, busybox will use the system's password
+ and group functions. And if you are using the GNU C library
+ (glibc), you will then need to install the /etc/nsswitch.conf
+ configuration file and the required /lib/libnss_* libraries in
+ order for the password and group functions to work. This generally
+ makes your embedded system quite a bit larger.
+
+ Enabling this option will cause busybox to directly access the
+ system's /etc/password, /etc/group files (and your system will be
+ smaller, and I will get fewer emails asking about how glibc NSS
+ works). When this option is enabled, you will not be able to use
+ PAM to access remote LDAP password servers and whatnot. And if you
+ want hostname resolution to work with glibc, you still need the
+ /lib/libnss_* libraries.
+
+ If you need to use glibc's nsswitch.conf mechanism
+ (e.g. if user/group database is NOT stored in /etc/passwd etc),
+ you must NOT use this option.
+
+ If you enable this option, it will add about 1.5k.
+
config BUSYBOX_CONFIG_USE_BB_SHADOW
- bool #" Use busybox shadow password functions"
+ bool "Use internal shadow password functions"
default n
depends on BUSYBOX_CONFIG_USE_BB_PWD_GRP && BUSYBOX_CONFIG_FEATURE_SHADOWPASSWDS
help
- If you leave this disabled, busybox will use the system's shadow
- password handling functions. And if you are using the GNU C library
- (glibc), you will then need to install the /etc/nsswitch.conf
- configuration file and the required /lib/libnss_* libraries in
- order for the shadow password functions to work. This generally
- makes your embedded system quite a bit larger.
+ If you leave this disabled, busybox will use the system's shadow
+ password handling functions. And if you are using the GNU C library
+ (glibc), you will then need to install the /etc/nsswitch.conf
+ configuration file and the required /lib/libnss_* libraries in
+ order for the shadow password functions to work. This generally
+ makes your embedded system quite a bit larger.
- Enabling this option will cause busybox to directly access the
- system's /etc/shadow file when handling shadow passwords. This
- makes your system smaller and I will get fewer emails asking about
- how glibc NSS works). When this option is enabled, you will not be
- able to use PAM to access shadow passwords from remote LDAP
- password servers and whatnot.
+ Enabling this option will cause busybox to directly access the
+ system's /etc/shadow file when handling shadow passwords. This
+ makes your system smaller (and I will get fewer emails asking about
+ how glibc NSS works). When this option is enabled, you will not be
+ able to use PAM to access shadow passwords from remote LDAP
+ password servers and whatnot.
-config BUSYBOX_CONFIG_USE_BB_PWD_GRP
- bool "Use internal password and group functions rather than system functions"
+config BUSYBOX_CONFIG_USE_BB_CRYPT
+ bool "Use internal crypt functions"
default n
help
- If you leave this disabled, busybox will use the system's password
- and group functions. And if you are using the GNU C library
- (glibc), you will then need to install the /etc/nsswitch.conf
- configuration file and the required /lib/libnss_* libraries in
- order for the password and group functions to work. This generally
- makes your embedded system quite a bit larger.
+ Busybox has internal DES and MD5 crypt functions.
+ They produce results which are identical to corresponding
+ standard C library functions.
+
+ If you leave this disabled, busybox will use the system's
+ crypt functions. Most C libraries use large (~70k)
+ static buffers there, and also combine them with more general
+ DES encryption/decryption.
- Enabling this option will cause busybox to directly access the
- system's /etc/password, /etc/group files (and your system will be
- smaller, and I will get fewer emails asking about how glibc NSS
- works). When this option is enabled, you will not be able to use
- PAM to access remote LDAP password servers and whatnot. And if you
- want hostname resolution to work with glibc, you still need the
- /lib/libnss_* libraries.
+ For busybox, having large static buffers is undesirable,
+ especially on NOMMU machines. Busybox also doesn't need
+ DES encryption/decryption and can do with smaller code.
- If you enable this option, it will add about 1.5k to busybox.
+ If you enable this option, it will add about 4.8k of code
+ if you are building dynamically linked executable.
+ In static build, it makes code _smaller_ by about 1.2k,
+ and likely many kilobytes less of bss.
+
+config BUSYBOX_CONFIG_USE_BB_CRYPT_SHA
+ bool "Enable SHA256/512 crypt functions"
+ default n
+ depends on BUSYBOX_CONFIG_USE_BB_CRYPT
+ help
+ Enable this if you have passwords starting with "$5$" or "$6$"
+ in your /etc/passwd or /etc/shadow files. These passwords
+ are hashed using SHA256 and SHA512 algorithms. Support for them
+ was added to glibc in 2008.
+ With this option off, login will fail password check for any
+ user which has password encrypted with these algorithms.
config BUSYBOX_CONFIG_ADDGROUP
bool "addgroup"
help
Utility for creating a new group account.
+config BUSYBOX_CONFIG_FEATURE_ADDGROUP_LONG_OPTIONS
+ bool "Enable long options"
+ default n
+ depends on BUSYBOX_CONFIG_ADDGROUP && BUSYBOX_CONFIG_LONG_OPTS
+ help
+ Support long options for the addgroup applet.
+
+config BUSYBOX_CONFIG_FEATURE_ADDUSER_TO_GROUP
+ bool "Support for adding users to groups"
+ default n
+ depends on BUSYBOX_CONFIG_ADDGROUP
+ help
+ If called with two non-option arguments,
+ addgroup will add an existing user to an
+ existing group.
+
config BUSYBOX_CONFIG_DELGROUP
bool "delgroup"
default n
help
Utility for deleting a group account.
+config BUSYBOX_CONFIG_FEATURE_DEL_USER_FROM_GROUP
+ bool "Support for removing users from groups"
+ default n
+ depends on BUSYBOX_CONFIG_DELGROUP
+ help
+ If called with two non-option arguments, deluser
+ or delgroup will remove an user from a specified group.
+
+config BUSYBOX_CONFIG_FEATURE_CHECK_NAMES
+ bool "Enable sanity check on user/group names in adduser and addgroup"
+ default n
+ depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
+ help
+ Enable sanity check on user and group names in adduser and addgroup.
+ To avoid problems, the user or group name should consist only of
+ letters, digits, underscores, periods, at signs and dashes,
+ and not start with a dash (as defined by IEEE Std 1003.1-2001).
+ For compatibility with Samba machine accounts "$" is also supported
+ at the end of the user or group name.
+
config BUSYBOX_CONFIG_ADDUSER
bool "adduser"
default n
help
Utility for creating a new user account.
+config BUSYBOX_CONFIG_FEATURE_ADDUSER_LONG_OPTIONS
+ bool "Enable long options"
+ default n
+ depends on BUSYBOX_CONFIG_ADDUSER && BUSYBOX_CONFIG_LONG_OPTS
+ help
+ Support long options for the adduser applet.
+
+config BUSYBOX_CONFIG_FIRST_SYSTEM_ID
+ int "First valid system uid or gid for adduser and addgroup"
+ depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
+ range 0 64900
+ default 100
+ help
+ First valid system uid or gid for adduser and addgroup
+
+config BUSYBOX_CONFIG_LAST_SYSTEM_ID
+ int "Last valid system uid or gid for adduser and addgroup"
+ depends on BUSYBOX_CONFIG_ADDUSER || BUSYBOX_CONFIG_ADDGROUP
+ range 0 64900
+ default 999
+ help
+ Last valid system uid or gid for adduser and addgroup
+
config BUSYBOX_CONFIG_DELUSER
bool "deluser"
default n
config BUSYBOX_CONFIG_GETTY
bool "getty"
default n
+ select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
getty lets you log in on a tty, it is normally invoked by init.
-config BUSYBOX_CONFIG_FEATURE_UTMP
- bool " Support utmp file"
- depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_WHO
- default n
- help
- The file /var/run/utmp is used to track who is currently logged in.
-
-config BUSYBOX_CONFIG_FEATURE_WTMP
- bool " Support wtmp file"
- depends on BUSYBOX_CONFIG_GETTY || BUSYBOX_CONFIG_LOGIN || BUSYBOX_CONFIG_SU || BUSYBOX_CONFIG_LAST
- default n
- select BUSYBOX_CONFIG_FEATURE_UTMP
- help
- The file /var/run/wtmp is used to track when user's have logged into
- and logged out of the system.
-
config BUSYBOX_CONFIG_LOGIN
bool "login"
default n
select BUSYBOX_CONFIG_FEATURE_SUID
+ select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
login is used when signing onto a system.
Note that Busybox binary must be setuid root for this applet to
work properly.
+config BUSYBOX_CONFIG_PAM
+ bool "Support for PAM (Pluggable Authentication Modules)"
+ default n
+ depends on BUSYBOX_CONFIG_LOGIN
+ help
+ Use PAM in login(1) instead of direct access to password database.
+
+config BUSYBOX_CONFIG_LOGIN_SCRIPTS
+ bool "Support for login scripts"
+ depends on BUSYBOX_CONFIG_LOGIN
+ default n
+ help
+ Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
+ just prior to switching from root to logged-in user.
+
+config BUSYBOX_CONFIG_FEATURE_NOLOGIN
+ bool "Support for /etc/nologin"
+ default n
+ depends on BUSYBOX_CONFIG_LOGIN
+ help
+ The file /etc/nologin is used by (some versions of) login(1).
+ If it exists, non-root logins are prohibited.
+
config BUSYBOX_CONFIG_FEATURE_SECURETTY
- bool " Support for /etc/securetty"
+ bool "Support for /etc/securetty"
default n
depends on BUSYBOX_CONFIG_LOGIN
help
- The file /etc/securetty is used by (some versions of) login(1).
+ The file /etc/securetty is used by (some versions of) login(1).
The file contains the device names of tty lines (one per line,
without leading /dev/) on which root is allowed to login.
bool "passwd"
default y
select BUSYBOX_CONFIG_FEATURE_SUID
+ select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
- passwd changes passwords for user and group accounts. A normal user
+ passwd changes passwords for user and group accounts. A normal user
may only change the password for his/her own account, the super user
- may change the password for any account. The administrator of a group
+ may change the password for any account. The administrator of a group
may change the password for the group.
Note that Busybox binary must be setuid root for this applet to
work properly.
+config BUSYBOX_CONFIG_FEATURE_PASSWD_WEAK_CHECK
+ bool "Check new passwords for weakness"
+ default y
+ depends on BUSYBOX_CONFIG_PASSWD
+ help
+ With this option passwd will refuse new passwords which are "weak".
+
+config BUSYBOX_CONFIG_CRYPTPW
+ bool "cryptpw"
+ default n
+ help
+ Encrypts the given password with the crypt(3) libc function
+ using the given salt. Debian has this utility under mkpasswd
+ name. Busybox provides mkpasswd as an alias for cryptpw.
+
+config BUSYBOX_CONFIG_CHPASSWD
+ bool "chpasswd"
+ default n
+ help
+ Reads a file of user name and password pairs from standard input
+ and uses this information to update a group of existing users.
+
config BUSYBOX_CONFIG_SU
bool "su"
default n
select BUSYBOX_CONFIG_FEATURE_SUID
+ select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
su is used to become another user during a login session.
Invoked without a username, su defaults to becoming the super user.
Note that Busybox binary must be setuid root for this applet to
work properly.
+config BUSYBOX_CONFIG_FEATURE_SU_SYSLOG
+ bool "Enable su to write to syslog"
+ default n
+ depends on BUSYBOX_CONFIG_SU
+
+config BUSYBOX_CONFIG_FEATURE_SU_CHECKS_SHELLS
+ bool "Enable su to check user's shell to be listed in /etc/shells"
+ depends on BUSYBOX_CONFIG_SU
+ default n
+
config BUSYBOX_CONFIG_SULOGIN
bool "sulogin"
default n
+ select BUSYBOX_CONFIG_FEATURE_SYSLOG
help
sulogin is invoked when the system goes into single user
mode (this is done through an entry in inittab).
work properly.
endmenu
-
projects / openwrt.git / blobdiff