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-rw-r--r--src/etc/inc/crypt.inc101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/etc/inc/crypt.inc b/src/etc/inc/crypt.inc
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--- /dev/null
+++ b/src/etc/inc/crypt.inc
@@ -0,0 +1,101 @@
+<?php
+
+/* $Id$ */
+/*
+ Copyright (C) 2008 Shrew Soft Inc
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ pfSense_BUILDER_BINARIES: /usr/bin/openssl
+ pfSense_MODULE: crypto
+
+*/
+
+ function crypt_data($val, $pass, $opt) {
+ $file = tempnam("/tmp", "php-encrypt");
+ file_put_contents("{$file}.dec", $val);
+ exec("/usr/bin/openssl enc {$opt} -aes-256-cbc -in {$file}.dec -out {$file}.enc -k " . escapeshellarg($pass));
+ if (file_exists("{$file}.enc")) {
+ $result = file_get_contents("{$file}.enc");
+ } else {
+ $result = "";
+ log_error("Failed to encrypt/decrypt data!");
+ }
+ @unlink($file);
+ @unlink("{$file}.dec");
+ @unlink("{$file}.enc");
+ return $result;
+ }
+
+ function encrypt_data(& $data, $pass) {
+ return base64_encode(crypt_data($data, $pass, "-e"));
+ }
+
+ function decrypt_data(& $data, $pass) {
+ return crypt_data(base64_decode($data), $pass, "-d");
+ }
+
+ function tagfile_reformat($in, & $out, $tag) {
+
+ $out = "---- BEGIN {$tag} ----\n";
+
+ $size = 80;
+ $oset = 0;
+ while ($size >= 64) {
+ $line = substr($in, $oset, 64);
+ $out .= $line."\n";
+ $size = strlen($line);
+ $oset += $size;
+ }
+
+ $out .= "---- END {$tag} ----\n";
+
+ return true;
+ }
+
+ function tagfile_deformat($in, & $out, $tag) {
+
+ $btag_val = "---- BEGIN {$tag} ----";
+ $etag_val = "---- END {$tag} ----";
+
+ $btag_len = strlen($btag_val);
+ $etag_len = strlen($etag_val);
+
+ $btag_pos = stripos($in, $btag_val);
+ $etag_pos = stripos($in, $etag_val);
+
+ if (($btag_pos === false) || ($etag_pos === false)) {
+ return false;
+ }
+
+ $body_pos = $btag_pos + $btag_len;
+ $body_len = strlen($in);
+ $body_len -= $btag_len;
+ $body_len -= $etag_len + 1;
+
+ $out = substr($in, $body_pos, $body_len);
+
+ return true;
+ }
+
+?>
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