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67 lines
2.3 KiB
EmacsLisp
67 lines
2.3 KiB
EmacsLisp
;;; sasl-ntlm.el --- NTLM (NT Lan Manager) module for the SASL client framework -*- lexical-binding: t -*-
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;; Copyright (C) 2000, 2007-2024 Free Software Foundation, Inc.
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;; Author: Taro Kawagishi <tarok@transpulse.org>
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;; Keywords: SASL, NTLM
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;; Old-Version: 1.00
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;; Created: February 2001
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;; Package: sasl
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This is a SASL interface layer for NTLM authentication message
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;; generation by ntlm.el
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;;; Code:
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(require 'sasl)
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(require 'ntlm)
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(defconst sasl-ntlm-steps
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'(ignore ;nothing to do before making
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sasl-ntlm-request ;authentication request
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sasl-ntlm-response) ;response to challenge
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"List of functions to call in sequence for the NTLM authentication steps.
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They are called by `sasl-next-step'.")
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(defun sasl-ntlm-request (client _step)
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"SASL step function to generate a NTLM authentication request to the server.
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Called from `sasl-next-step'.
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CLIENT is a vector [mechanism user service server sasl-client-properties]
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STEP is a vector [<previous step function> <result of previous step function>]"
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(let ((user (sasl-client-name client)))
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(ntlm-build-auth-request user)))
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(defun sasl-ntlm-response (client step)
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"SASL step function to generate a NTLM response against the server
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challenge stored in the 2nd element of STEP. Called from `sasl-next-step'."
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(let* ((user (sasl-client-name client))
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(passphrase
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(sasl-read-passphrase (format "NTLM passphrase for %s: " user)))
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(challenge (sasl-step-data step)))
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(ntlm-build-auth-response challenge user
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(ntlm-get-password-hashes passphrase))))
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(put 'sasl-ntlm 'sasl-mechanism
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(sasl-make-mechanism "NTLM" sasl-ntlm-steps))
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(provide 'sasl-ntlm)
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;;; sasl-ntlm.el ends here
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