httpd: speed up httpd.conf at the cost of 49 bytes of code

[oweals/busybox.git] / loginutils / Config.in

diff --git a/loginutils/Config.in b/loginutils/Config.in
index 03a638c002288c51160518346ad20704d7676968..9430bfa09d39ac73bce3edb35263d32033818bf5 100644 (file)
--- a/loginutils/Config.in
+++ b/loginutils/Config.in
@@ -9,49 +9,87 @@ config FEATURE_SHADOWPASSWDS
        bool "Support for shadow passwords"
        default n
        help
        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.
 
          readable by root and thus the encrypted passwords are no longer
          publicly readable.
 

+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 USE_BB_SHADOW
 config USE_BB_SHADOW

-       bool "  Use busybox shadow password functions"
+       bool "Use internal shadow password functions"

        default y
        depends on USE_BB_PWD_GRP && FEATURE_SHADOWPASSWDS
        help
        default y
        depends on USE_BB_PWD_GRP && 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 USE_BB_PWD_GRP
-       bool "Use internal password and group functions rather than system functions"
-       default n
+config USE_BB_CRYPT
+       bool "Use internal crypt functions"
+       default y

        help
        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.

 
 

-           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 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.

 
 

-           If you enable this option, it will add about 1.5k to busybox.
+         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 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 USE_BB_CRYPT_SHA
+       bool "Enable SHA256/512 crypt functions"
+       default n
+       depends on 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 ADDGROUP
        bool "addgroup"
 
 config ADDGROUP
        bool "addgroup"


@@ -59,18 +97,61 @@ config ADDGROUP
        help
          Utility for creating a new group account.
 
        help
          Utility for creating a new group account.
 

+config FEATURE_ADDGROUP_LONG_OPTIONS
+       bool "Enable long options"
+       default n
+       depends on ADDGROUP && GETOPT_LONG
+       help
+         Support long options for the addgroup applet.
+
+config FEATURE_ADDUSER_TO_GROUP
+       bool "Support for adding users to groups"
+       default n
+       depends on ADDGROUP
+       help
+         If  called  with two non-option arguments,
+         addgroup will add an existing user to an
+         existing group.
+

 config DELGROUP
        bool "delgroup"
        default n
        help
          Utility for deleting a group account.
 
 config DELGROUP
        bool "delgroup"
        default n
        help
          Utility for deleting a group account.
 

+config FEATURE_DEL_USER_FROM_GROUP
+       bool "Support for removing users from groups"
+       default n
+       depends on DELGROUP
+       help
+         If called with two non-option arguments, deluser
+         or delgroup will remove an user from a specified group.
+
+config FEATURE_CHECK_NAMES
+       bool "Enable sanity check on user/group names in adduser and addgroup"
+       default n
+       depends on ADDUSER || 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 ADDUSER
        bool "adduser"
        default n
        help
          Utility for creating a new user account.
 
 config ADDUSER
        bool "adduser"
        default n
        help
          Utility for creating a new user account.
 

+config FEATURE_ADDUSER_LONG_OPTIONS
+       bool "Enable long options"
+       default n
+       depends on ADDUSER && GETOPT_LONG
+       help
+         Support long options for the adduser applet.
+

 config DELUSER
        bool "deluser"
        default n
 config DELUSER
        bool "deluser"
        default n


@@ -111,6 +192,13 @@ config LOGIN
          Note that Busybox binary must be setuid root for this applet to
          work properly.
 
          Note that Busybox binary must be setuid root for this applet to
          work properly.
 

+config PAM
+       bool "Support for PAM (Pluggable Authentication Modules)"
+       default n
+       depends on LOGIN
+       help
+         Use PAM in login(1) instead of direct access to password database.
+

 config LOGIN_SCRIPTS
        bool "Support for login scripts"
        depends on LOGIN
 config LOGIN_SCRIPTS
        bool "Support for login scripts"
        depends on LOGIN


@@ -119,12 +207,20 @@ config LOGIN_SCRIPTS
          Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
          just prior to switching from root to logged-in user.
 
          Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT
          just prior to switching from root to logged-in user.
 

+config FEATURE_NOLOGIN
+       bool "Support for /etc/nologin"
+       default y
+       depends on LOGIN
+       help
+         The file /etc/nologin is used by (some versions of) login(1).
+         If it exists, non-root logins are prohibited.
+

 config FEATURE_SECURETTY
        bool "Support for /etc/securetty"
        default y
        depends on LOGIN
        help
 config FEATURE_SECURETTY
        bool "Support for /etc/securetty"
        default y
        depends on 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.
 
          The file contains the device names of tty lines (one per line,
          without leading /dev/) on which root is allowed to login.
 


@@ -134,9 +230,9 @@ config PASSWD
        select FEATURE_SUID
        select FEATURE_SYSLOG
        help
        select FEATURE_SUID
        select 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 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
          may change the password for the group.
 
          Note that Busybox binary must be setuid root for this applet to


@@ -149,6 +245,21 @@ config FEATURE_PASSWD_WEAK_CHECK
        help
          With this option passwd will refuse new passwords which are "weak".
 
        help
          With this option passwd will refuse new passwords which are "weak".
 

+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 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 SU
        bool "su"
        default n
 config SU
        bool "su"
        default n


@@ -190,4 +301,3 @@ config VLOCK
          work properly.
 
 endmenu
          work properly.
 
 endmenu

-