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Diffstat (limited to 'packages/busybox/busybox-kconfigs/busybox-loginutils.kconfig')
| -rw-r--r-- | packages/busybox/busybox-kconfigs/busybox-loginutils.kconfig | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/packages/busybox/busybox-kconfigs/busybox-loginutils.kconfig b/packages/busybox/busybox-kconfigs/busybox-loginutils.kconfig new file mode 100644 index 0000000..6b1ad2b --- /dev/null +++ b/packages/busybox/busybox-kconfigs/busybox-loginutils.kconfig @@ -0,0 +1,300 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +comment "-------------------------------------------------" +comment "Login/Password Management Utilities" +comment "-------------------------------------------------" + +config KEMBTK_BUSYB_FEATURE_SHADOWPASSWDS + bool "Support for shadow passwords" + 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 KEMBTK_BUSYB_USE_BB_PWD_GRP + bool "Use internal password and group functions rather than system functions" + 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 + KEMBTK_BUSYB_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 KEMBTK_BUSYB_USE_BB_SHADOW + bool "Use internal shadow password functions" + default y + depends on KEMBTK_BUSYB_USE_BB_PWD_GRP && KEMBTK_BUSYB_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 KEMBTK_BUSYB_PAM to access shadow passwords from remote LDAP + password servers and whatnot. + +config KEMBTK_BUSYB_USE_BB_CRYPT + bool "Use internal 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. + + 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. + + For busybox, having large static buffers is undesirable, + especially on KEMBTK_BUSYB_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 KEMBTK_BUSYB_USE_BB_CRYPT_SHA + bool "Enable SHA256/512 crypt functions" + depends on KEMBTK_BUSYB_USE_BB_CRYPT + depends on EMBTK_BB_VERSION_1_14_X || EMBTK_BB_VERSION_1_15_X || EMBTK_BB_VERSION_1_16_X + 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 KEMBTK_BUSYB_ADDGROUP + bool "addgroup" + help + Utility for creating a new group account. + +config KEMBTK_BUSYB_FEATURE_ADDGROUP_LONG_OPTIONS + bool "Enable long options" + depends on KEMBTK_BUSYB_ADDGROUP && KEMBTK_BUSYB_LONG_OPTS + depends on EMBTK_BB_VERSION_1_15_X || EMBTK_BB_VERSION_1_16_X + help + Support long options for the addgroup applet. + +config KEMBTK_BUSYB_FEATURE_ADDUSER_TO_GROUP + bool "Support for adding users to groups" + depends on KEMBTK_BUSYB_ADDGROUP + help + If called with two non-option arguments, + addgroup will add an existing user to an + existing group. + +config KEMBTK_BUSYB_DELGROUP + bool "delgroup" + help + Utility for deleting a group account. + +config KEMBTK_BUSYB_FEATURE_DEL_USER_FROM_GROUP + bool "Support for removing users from groups" + depends on KEMBTK_BUSYB_DELGROUP + help + If called with two non-option arguments, deluser + or delgroup will remove an user from a specified group. + +config KEMBTK_BUSYB_FEATURE_CHECK_NAMES + bool "Enable sanity check on user/group names in adduser and addgroup" + depends on KEMBTK_BUSYB_ADDUSER || KEMBTK_BUSYB_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 KEMBTK_BUSYB_ADDUSER + bool "adduser" + help + Utility for creating a new user account. + +config KEMBTK_BUSYB_FEATURE_ADDUSER_LONG_OPTIONS + bool "Enable long options" + depends on KEMBTK_BUSYB_ADDUSER && KEMBTK_BUSYB_LONG_OPTS + help + Support long options for the adduser applet. + +config KEMBTK_BUSYB_FIRST_SYSTEM_ID + int "First valid system uid or gid for adduser and addgroup" + depends on KEMBTK_BUSYB_ADDUSER || KEMBTK_BUSYB_ADDGROUP + depends on EMBTK_BB_VERSION_1_15_X || EMBTK_BB_VERSION_1_16_X + range 0 64900 + default 100 + help + First valid system uid or gid for adduser and addgroup + +config KEMBTK_BUSYB_LAST_SYSTEM_ID + int "Last valid system uid or gid for adduser and addgroup" + depends on KEMBTK_BUSYB_ADDUSER || KEMBTK_BUSYB_ADDGROUP + depends on EMBTK_BB_VERSION_1_15_X || EMBTK_BB_VERSION_1_16_X + range 0 64900 + default 999 + help + Last valid system uid or gid for adduser and addgroup + +config KEMBTK_BUSYB_DELUSER + bool "deluser" + help + Utility for deleting a user account. + +config KEMBTK_BUSYB_GETTY + bool "getty" + select KEMBTK_BUSYB_FEATURE_SYSLOG + help + getty lets you log in on a tty, it is normally invoked by init. + +config KEMBTK_BUSYB_FEATURE_UTMP + bool "Support utmp file" + depends on KEMBTK_BUSYB_GETTY || KEMBTK_BUSYB_LOGIN || KEMBTK_BUSYB_SU || KEMBTK_BUSYB_WHO + help + The file /var/run/utmp is used to track who is currently logged in. + +config KEMBTK_BUSYB_FEATURE_WTMP + bool "Support wtmp file" + depends on KEMBTK_BUSYB_GETTY || KEMBTK_BUSYB_LOGIN || KEMBTK_BUSYB_SU || KEMBTK_BUSYB_LAST + select KEMBTK_BUSYB_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 KEMBTK_BUSYB_LOGIN + bool "login" + select KEMBTK_BUSYB_FEATURE_SUID + select KEMBTK_BUSYB_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 KEMBTK_BUSYB_PAM + bool "Support for KEMBTK_BUSYB_PAM (Pluggable Authentication Modules)" + depends on KEMBTK_BUSYB_LOGIN + help + Use KEMBTK_BUSYB_PAM in login(1) instead of direct access to password database. + +config KEMBTK_BUSYB_LOGIN_SCRIPTS + bool "Support for login scripts" + depends on KEMBTK_BUSYB_LOGIN + help + Enable this if you want login to execute $LOGIN_PRE_SUID_SCRIPT + just prior to switching from root to logged-in user. + +config KEMBTK_BUSYB_FEATURE_NOLOGIN + bool "Support for /etc/nologin" + default y + depends on KEMBTK_BUSYB_LOGIN + help + The file /etc/nologin is used by (some versions of) login(1). + If it exists, non-root logins are prohibited. + +config KEMBTK_BUSYB_FEATURE_SECURETTY + bool "Support for /etc/securetty" + default y + depends on KEMBTK_BUSYB_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 KEMBTK_BUSYB_PASSWD + bool "passwd" + select KEMBTK_BUSYB_FEATURE_SUID + select KEMBTK_BUSYB_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 + may change the password for the group. + + Note that Busybox binary must be setuid root for this applet to + work properly. + +config KEMBTK_BUSYB_FEATURE_PASSWD_WEAK_CHECK + bool "Check new passwords for weakness" + default y + depends on KEMBTK_BUSYB_PASSWD + help + With this option passwd will refuse new passwords which are "weak". + +config KEMBTK_BUSYB_CRYPTPW + bool "cryptpw" + 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 KEMBTK_BUSYB_CHPASSWD + bool "chpasswd" + 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 KEMBTK_BUSYB_SU + bool "su" + select KEMBTK_BUSYB_FEATURE_SUID + select KEMBTK_BUSYB_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 KEMBTK_BUSYB_FEATURE_SU_SYSLOG + bool "Enable su to write to syslog" + default y + depends on KEMBTK_BUSYB_SU + +config KEMBTK_BUSYB_FEATURE_SU_CHECKS_SHELLS + bool "Enable su to check user's shell to be listed in /etc/shells" + depends on KEMBTK_BUSYB_SU + default y + +config KEMBTK_BUSYB_SULOGIN + bool "sulogin" + select KEMBTK_BUSYB_FEATURE_SYSLOG + help + sulogin is invoked when the system goes into single user + mode (this is done through an entry in inittab). + +config KEMBTK_BUSYB_VLOCK + bool "vlock" + select KEMBTK_BUSYB_FEATURE_SUID + help + Build the "vlock" applet which allows you to lock (virtual) terminals. + + Note that Busybox binary must be setuid root for this applet to + work properly. + |