| 1 | ;;; sasl-ntlm.el --- NTLM (NT Lan Manager) module for the SASL client framework |
| 2 | |
| 3 | ;; Copyright (C) 2000, 2007-2014 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Taro Kawagishi <tarok@transpulse.org> |
| 6 | ;; Keywords: SASL, NTLM |
| 7 | ;; Version: 1.00 |
| 8 | ;; Created: February 2001 |
| 9 | ;; Package: sasl |
| 10 | |
| 11 | ;; This file is part of GNU Emacs. |
| 12 | |
| 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 14 | ;; it under the terms of the GNU General Public License as published by |
| 15 | ;; the Free Software Foundation, either version 3 of the License, or |
| 16 | ;; (at your option) any later version. |
| 17 | |
| 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | ;; GNU General Public License for more details. |
| 22 | |
| 23 | ;; You should have received a copy of the GNU General Public License |
| 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 25 | |
| 26 | ;;; Commentary: |
| 27 | |
| 28 | ;; This is a SASL interface layer for NTLM authentication message |
| 29 | ;; generation by ntlm.el |
| 30 | |
| 31 | ;;; Code: |
| 32 | |
| 33 | (require 'sasl) |
| 34 | (require 'ntlm) |
| 35 | |
| 36 | (defconst sasl-ntlm-steps |
| 37 | '(ignore ;nothing to do before making |
| 38 | sasl-ntlm-request ;authentication request |
| 39 | sasl-ntlm-response) ;response to challenge |
| 40 | "A list of functions to be called in sequence for the NTLM |
| 41 | authentication steps. They are called by `sasl-next-step'.") |
| 42 | |
| 43 | (defun sasl-ntlm-request (client step) |
| 44 | "SASL step function to generate a NTLM authentication request to the server. |
| 45 | Called from `sasl-next-step'. |
| 46 | CLIENT is a vector [mechanism user service server sasl-client-properties] |
| 47 | STEP is a vector [<previous step function> <result of previous step function>]" |
| 48 | (let ((user (sasl-client-name client))) |
| 49 | (ntlm-build-auth-request user))) |
| 50 | |
| 51 | (defun sasl-ntlm-response (client step) |
| 52 | "SASL step function to generate a NTLM response against the server |
| 53 | challenge stored in the 2nd element of STEP. Called from `sasl-next-step'." |
| 54 | (let* ((user (sasl-client-name client)) |
| 55 | (passphrase |
| 56 | (sasl-read-passphrase (format "NTLM passphrase for %s: " user))) |
| 57 | (challenge (sasl-step-data step))) |
| 58 | (ntlm-build-auth-response challenge user |
| 59 | (ntlm-get-password-hashes passphrase)))) |
| 60 | |
| 61 | (put 'sasl-ntlm 'sasl-mechanism |
| 62 | (sasl-make-mechanism "NTLM" sasl-ntlm-steps)) |
| 63 | |
| 64 | (provide 'sasl-ntlm) |
| 65 | |
| 66 | ;;; sasl-ntlm.el ends here |