1\ Copyright (c) 2006-2012 Devin Teske <dteske@FreeBSD.org>
2\ All rights reserved.
3\
4\ Redistribution and use in source and binary forms, with or without
5\ modification, are permitted provided that the following conditions
6\ are met:
7\ 1. Redistributions of source code must retain the above copyright
8\ notice, this list of conditions and the following disclaimer.
9\ 2. Redistributions in binary form must reproduce the above copyright
--- 7 unchanged lines hidden (view full) ---
17\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23\ SUCH DAMAGE.
24\
25\ $FreeBSD: head/sys/boot/forth/check-password.4th 244158 2012-12-12 17:49:01Z dteske $
26
27marker task-check-password.4th
28
29include /boot/screen.4th
30
3113 constant enter_key \ The decimal ASCII value for Enter key
328 constant bs_key \ The decimal ASCII value for Backspace key
3316 constant readmax \ Maximum number of characters for the password
--- 35 unchanged lines hidden (view full) ---
69 dup bs_key = if exit then
70 dup enter_key = if exit then
71
72 then
73 50 ms \ Sleep for 50 milliseconds (see loader(8))
74 again
75;
76
77: read ( String prompt -- )
78
79 0 25 at-xy \ Move the cursor to the bottom-left
80 dup 1+ read-start ! \ Store X offset after the prompt
81 read-start @ readX ! \ copy value to the current X offset
82 0 readlen ! \ Initialize the read length
83 type \ Print the prompt
84
85 begin \ Loop forever
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129
130 drop \ drop the last key that was entered
131
132 again \ Enter was not pressed; repeat
133;
134
135: check-password ( -- )
136
137 \ Do not allow the user to proceed beyond this point if a boot-lock
138 \ password has been set (preventing even boot from proceeding)
139 s" bootlock_password" getenv dup -1 <> if
140 begin
141 s" Boot Password: " read ( prompt -- )
142 2dup readval readlen @ compare 0<>
143 while
144 3000 ms ." loader: incorrect password" 10 emit
145 repeat
146 2drop ( c-addr/u )
147 else
148 drop ( -1 ) \ getenv cruft
149 then
150
151 \ Exit if a password was not set
152 s" password" getenv -1 = if exit else drop then
153
154 \ We should prevent the user from visiting the menu or dropping to the
155 \ interactive loader(8) prompt, but still allow the machine to boot...
156
157 0 autoboot
158
159 \ Only reached if autoboot fails for any reason (including if/when
160 \ the user aborts/escapes the countdown sequence leading to boot).
161
162 s" password" getenv
163 begin
164 s" Password: " read ( prompt -- )
165 2dup readval readlen @ compare 0= if
166 2drop exit \ Correct password
167 then
168 3000 ms ." loader: incorrect password" 10 emit
169 again
170;
2\ All rights reserved.
3\
4\ Redistribution and use in source and binary forms, with or without
5\ modification, are permitted provided that the following conditions
6\ are met:
7\ 1. Redistributions of source code must retain the above copyright
8\ notice, this list of conditions and the following disclaimer.
9\ 2. Redistributions in binary form must reproduce the above copyright
--- 7 unchanged lines hidden (view full) ---
17\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23\ SUCH DAMAGE.
24\
25\ $FreeBSD: head/sys/boot/forth/check-password.4th 244158 2012-12-12 17:49:01Z dteske $
26
27marker task-check-password.4th
28
29include /boot/screen.4th
30
3113 constant enter_key \ The decimal ASCII value for Enter key
328 constant bs_key \ The decimal ASCII value for Backspace key
3316 constant readmax \ Maximum number of characters for the password
--- 35 unchanged lines hidden (view full) ---
69 dup bs_key = if exit then
70 dup enter_key = if exit then
71
72 then
73 50 ms \ Sleep for 50 milliseconds (see loader(8))
74 again
75;
76
77: read ( String prompt -- )
78
79 0 25 at-xy \ Move the cursor to the bottom-left
80 dup 1+ read-start ! \ Store X offset after the prompt
81 read-start @ readX ! \ copy value to the current X offset
82 0 readlen ! \ Initialize the read length
83 type \ Print the prompt
84
85 begin \ Loop forever
--- 43 unchanged lines hidden (view full) ---
129
130 drop \ drop the last key that was entered
131
132 again \ Enter was not pressed; repeat
133;
134
135: check-password ( -- )
136
137 \ Do not allow the user to proceed beyond this point if a boot-lock
138 \ password has been set (preventing even boot from proceeding)
139 s" bootlock_password" getenv dup -1 <> if
140 begin
141 s" Boot Password: " read ( prompt -- )
142 2dup readval readlen @ compare 0<>
143 while
144 3000 ms ." loader: incorrect password" 10 emit
145 repeat
146 2drop ( c-addr/u )
147 else
148 drop ( -1 ) \ getenv cruft
149 then
150
151 \ Exit if a password was not set
152 s" password" getenv -1 = if exit else drop then
153
154 \ We should prevent the user from visiting the menu or dropping to the
155 \ interactive loader(8) prompt, but still allow the machine to boot...
156
157 0 autoboot
158
159 \ Only reached if autoboot fails for any reason (including if/when
160 \ the user aborts/escapes the countdown sequence leading to boot).
161
162 s" password" getenv
163 begin
164 s" Password: " read ( prompt -- )
165 2dup readval readlen @ compare 0= if
166 2drop exit \ Correct password
167 then
168 3000 ms ." loader: incorrect password" 10 emit
169 again
170;