322a2dddba
We mostly use camel case for function names, but some local functions got mixed in using internal underscores. Doubles down on camel case.
105 lines
3.0 KiB
Lua
105 lines
3.0 KiB
Lua
--
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-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- Copyright (C) 2018 Kyle Evans <kevans@FreeBSD.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local core = require("core")
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local screen = require("screen")
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local password = {}
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-- Module exports
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function password.read()
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local str = ""
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local n = 0
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while true do
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local ch = io.getchar()
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if ch == core.KEY_ENTER then
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break
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end
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-- XXX TODO: Evaluate if we really want this or not, as a
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-- security consideration of sorts
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if ch == core.KEY_BACKSPACE or ch == core.KEY_DELETE then
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if n > 0 then
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n = n - 1
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-- loader.printc("\008 \008")
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str = str:sub(1, n)
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end
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else
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-- loader.printc("*")
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str = str .. string.char(ch)
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n = n + 1
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end
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end
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return str
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end
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function password.check()
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screen.clear()
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screen.defcursor()
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-- pwd is optionally supplied if we want to check it
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local function doPrompt(prompt, pwd)
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while true do
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loader.printc(prompt)
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local read_pwd = password.read()
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if pwd == nil or pwd == read_pwd then
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-- Throw an extra newline after password prompt
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print("")
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return read_pwd
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end
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print("\n\nloader: incorrect password!\n")
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loader.delay(3*1000*1000)
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end
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end
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local function compare(prompt, pwd)
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if pwd == nil then
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return
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end
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doPrompt(prompt, pwd)
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end
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local boot_pwd = loader.getenv("bootlock_password")
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compare("Boot password: ", boot_pwd)
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local geli_prompt = loader.getenv("geom_eli_passphrase_prompt")
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if geli_prompt ~= nil and geli_prompt:lower() == "yes" then
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local passphrase = doPrompt("GELI Passphrase: ")
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loader.setenv("kern.geom.eli.passphrase", passphrase)
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end
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local pwd = loader.getenv("password")
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if pwd ~= nil then
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core.autoboot()
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end
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compare("Password: ", pwd)
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end
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return password
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