1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#
menu "Login/Password Management Utilities"
config 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 enable this option, it will add about 1.5k to busybox.
config CONFIG_ADDGROUP
bool "addgroup"
default n
help
Utility for creating a new group account.
config CONFIG_DELGROUP
bool "delgroup"
default n
help
Utility for deleting a group account.
config CONFIG_ADDUSER
bool "adduser"
default n
help
Utility for creating a new user account.
config CONFIG_DELUSER
bool "deluser"
default n
help
Utility for deleting a user account.
config CONFIG_GETTY
bool "getty"
default n
help
getty lets you log in on a tty, it is normally invoked by init.
config CONFIG_FEATURE_U_W_TMP
bool " Support utmp and wtmp files"
depends on CONFIG_GETTY || CONFIG_LOGIN || CONFIG_SU || CONFIG_WHO || CONFIG_LAST
default n
help
The files /var/run/utmp and /var/run/wtmp can be used to track when
user's have logged into and logged out of the system, allowing programs
such as 'who' and 'last' to list who is currently logged in.
config CONFIG_LOGIN
bool "login"
default n
select CONFIG_FEATURE_SUID
help
login is used when signing onto a system.
Note that Busybox binary must be setuid root for this applet to
work properly.
config CONFIG_FEATURE_SECURETTY
bool " Support for /etc/securetty"
default y
depends on CONFIG_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 CONFIG_PASSWD
bool "passwd"
default n
select CONFIG_FEATURE_SUID
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 CONFIG_SU
bool "su"
default n
select CONFIG_FEATURE_SUID
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 CONFIG_SULOGIN
bool "sulogin"
default n
help
sulogin is invoked when the system goes into single user
mode (this is done through an entry in inittab).
config CONFIG_VLOCK
bool "vlock"
default n
select CONFIG_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.
comment "Common options for adduser, deluser, login, su"
depends on CONFIG_ADDUSER || CONFIG_DELUSER || CONFIG_LOGIN || CONFIG_SU
config CONFIG_FEATURE_SHADOWPASSWDS
bool "Support for shadow passwords"
default n
depends on CONFIG_ADDUSER || CONFIG_DELUSER || CONFIG_LOGIN || CONFIG_SU
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 CONFIG_USE_BB_SHADOW
bool " Use busybox shadow password functions"
default n
depends on CONFIG_USE_BB_PWD_GRP && 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.
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.
endmenu
|
