X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=loginutils%2FConfig.in;h=c3c8dd513dbedda50cf757af9836942b13ba6998;hb=57c899e4c2be4d0bddeaaca9c34ea0f484f92ad8;hp=9eb771f093c62bfb7924e716960d2152003ac005;hpb=340aa1cb3f1a8f5fda7c6782b514499a0d397c58;p=oweals%2Fbusybox.git diff --git a/loginutils/Config.in b/loginutils/Config.in index 9eb771f09..c3c8dd513 100644 --- a/loginutils/Config.in +++ b/loginutils/Config.in @@ -5,132 +5,279 @@ menu "Login/Password Management Utilities" -config CONFIG_USE_BB_PWD_GRP +config FEATURE_SHADOWPASSWDS + bool "Support for shadow passwords" + default n + help + 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 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. + 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 + bool "Use internal shadow password functions" + 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. + + 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_CRYPT + bool "Use internal DES and MD5 crypt functions" + default y + help + 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 CONFIG_ADDGROUP +config ADDGROUP bool "addgroup" default n help Utility for creating a new group account. -config CONFIG_DELGROUP +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 CONFIG_ADDUSER +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 CONFIG_DELUSER +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 help Utility for deleting a user account. -config CONFIG_GETTY +config GETTY bool "getty" default n + select FEATURE_SYSLOG + help + getty lets you log in on a tty, it is normally invoked by init. + +config FEATURE_UTMP + bool "Support utmp file" + depends on GETTY || LOGIN || SU || WHO + default n + help + The file /var/run/utmp is used to track who is currently logged in. + +config FEATURE_WTMP + bool "Support wtmp file" + depends on GETTY || LOGIN || SU || LAST + default n + select FEATURE_UTMP help - Getty lets you log in on a tty, it is normally invoked by init. + The file /var/run/wtmp is used to track when user's have logged into + and logged out of the system. -config CONFIG_LOGIN +config LOGIN bool "login" default n + select FEATURE_SUID + select 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 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 + default n help - Login is used when signing onto a system. + Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT + just prior to switching from root to logged-in user. -config CONFIG_FEATURE_SECURETTY - bool " Support for /etc/securetty" +config FEATURE_NOLOGIN + bool "Support for /etc/nologin" default y - depends on CONFIG_LOGIN + depends on LOGIN help - 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 /etc/nologin is used by (some versions of) login(1). + If it exists, non-root logins are prohibited. -config CONFIG_PASSWD +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 contains the device names of tty lines (one per line, + without leading /dev/) on which root is allowed to login. + +config PASSWD bool "passwd" default n + select FEATURE_SUID + select FEATURE_SYSLOG help - 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 + 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 the group. -config CONFIG_SU - bool "su" - default n + Note that Busybox binary must be setuid root for this applet to + work properly. + +config FEATURE_PASSWD_WEAK_CHECK + bool "Check new passwords for weakness" + default y + depends on PASSWD help - su is used to become another user during a login session. Invoked with- - out a username, su defaults to becoming the super user. + With this option passwd will refuse new passwords which are "weak". -config CONFIG_SULOGIN - bool "sulogin" +config CRYPTPW + bool "cryptpw" default n help - Sulogin is invoked when the system goes into single user - mode (this is done through an entry in inittab). + Applet for crypting a string. -config CONFIG_VLOCK - bool "vlock" +config CHPASSWD + bool "chpasswd" + default n + help + chpasswd 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 + select FEATURE_SUID + select FEATURE_SYSLOG help - Build the "vlock" applet, that allows you to lock (virtual) terminals. + su is used to become another user during a login session. + Invoked without a username, su defaults to becoming the super user. -comment "Common options for adduser, deluser, login, su" - depends on CONFIG_ADDUSER || CONFIG_DELUSER || CONFIG_LOGIN || CONFIG_SU + Note that Busybox binary must be setuid root for this applet to + work properly. -config CONFIG_FEATURE_SHADOWPASSWDS - bool "Support for shadow passwords" +config FEATURE_SU_SYSLOG + bool "Enable su to write to syslog" + default y + depends on SU + +config FEATURE_SU_CHECKS_SHELLS + bool "Enable su to check user's shell to be listed in /etc/shells" + depends on SU + default y + +config SULOGIN + bool "sulogin" default n - depends on CONFIG_ADDUSER || CONFIG_DELUSER || CONFIG_LOGIN || CONFIG_SU + select FEATURE_SYSLOG help - 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. + sulogin is invoked when the system goes into single user + mode (this is done through an entry in inittab). -config CONFIG_USE_BB_SHADOW - bool " Use busybox shadow password functions" +config VLOCK + bool "vlock" default n - depends on CONFIG_USE_BB_PWD_GRP && CONFIG_FEATURE_SHADOWPASSWDS + select FEATURE_SUID 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. + Build the "vlock" applet which allows you to lock (virtual) terminals. - 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. + Note that Busybox binary must be setuid root for this applet to + work properly. endmenu -