From patchwork Tue May 19 11:59:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arne Schwabe X-Patchwork-Id: 1119 Return-Path: Delivered-To: patchwork@openvpn.net Delivered-To: patchwork@openvpn.net Received: from director11.mail.ord1d.rsapps.net ([172.31.255.6]) by backend30.mail.ord1d.rsapps.net with LMTP id 8LRcMDRXxF7MDgAAIUCqbw for ; Tue, 19 May 2020 18:01:24 -0400 Received: from proxy14.mail.iad3b.rsapps.net ([172.31.255.6]) by director11.mail.ord1d.rsapps.net with LMTP id IIEiLTRXxF6APwAAvGGmqA ; Tue, 19 May 2020 18:01:24 -0400 Received: from smtp13.gate.iad3b ([172.31.255.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by proxy14.mail.iad3b.rsapps.net with LMTP id ULs7JzRXxF7CaQAA+7ETDg ; Tue, 19 May 2020 18:01:24 -0400 X-Spam-Threshold: 95 X-Spam-Score: 0 X-Spam-Flag: NO X-Virus-Scanned: OK X-Orig-To: openvpnslackdevel@openvpn.net X-Originating-Ip: [216.105.38.7] Authentication-Results: smtp13.gate.iad3b.rsapps.net; iprev=pass policy.iprev="216.105.38.7"; spf=pass smtp.mailfrom="openvpn-devel-bounces@lists.sourceforge.net" smtp.helo="lists.sourceforge.net"; dkim=fail (signature verification failed) header.d=sourceforge.net; dkim=fail (signature verification failed) header.d=sf.net; dmarc=none (p=nil; dis=none) header.from=rfc2549.org X-Suspicious-Flag: YES X-Classification-ID: 478e934e-9a1c-11ea-9ac6-5254001dfc40-1-1 Received: from [216.105.38.7] ([216.105.38.7:39822] helo=lists.sourceforge.net) by smtp13.gate.iad3b.rsapps.net (envelope-from ) (ecelerity 4.2.38.62370 r(:)) with ESMTPS (cipher=DHE-RSA-AES256-GCM-SHA384) id AC/0F-22200-43754CE5; Tue, 19 May 2020 18:01:24 -0400 Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1jbAHw-00037C-JL; Tue, 19 May 2020 22:00:40 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jbAHa-00035n-TB for openvpn-devel@lists.sourceforge.net; Tue, 19 May 2020 22:00:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc: MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=e9jEW7W79CqHS9FP0r2rpF6M7inflkuNnvSVBFcdY5o=; b=BOMjAAm5yXHv2nQYVXtgz8wFIG 0Ki+twzSmAp62yIdX2bI7035jGCdLUffrKhCYntk9GR4Ba89ValPE4jp7xVOTIYftRbdI6MidYuzN Drnf5s0LlnV1izCNPc/psHhCGD1JBuRNo0OBsp7Twbg5OWye0I2/fyI+gBA0EBeHIFiw=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc:MIME-Version: Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=e9jEW7W79CqHS9FP0r2rpF6M7inflkuNnvSVBFcdY5o=; b=hUa35eTIUki3Bkhe08rj/Pp5bA g/aTHawhq6TmAaQUUqrtR4EpBIMnq0jHbjIGtAl8PEKKwVBEVvpjLBut0ZDMUkhb7IytdmFLGGQUt vdvqWDTOzVgXUTktwPQrBk/it4OX55dvx7vilsBkH0htlxurxlWp3+C1CHI4OrRYQUoc=; Received: from mail.blinkt.de ([192.26.174.232]) by sfi-mx-3.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.2) id 1jbAHY-00FmJx-MX for openvpn-devel@lists.sourceforge.net; Tue, 19 May 2020 22:00:18 +0000 Received: from kamera.blinkt.de ([2001:638:502:390:20c:29ff:fec8:535c]) by mail.blinkt.de with smtp (Exim 4.92.3 (FreeBSD)) (envelope-from ) id 1jbAHM-000DMN-Tb for openvpn-devel@lists.sourceforge.net; Wed, 20 May 2020 00:00:04 +0200 Received: (nullmailer pid 25181 invoked by uid 10006); Tue, 19 May 2020 22:00:04 -0000 From: Arne Schwabe To: openvpn-devel@lists.sourceforge.net Date: Tue, 19 May 2020 23:59:59 +0200 Message-Id: <20200519220004.25136-1-arne@rfc2549.org> X-Mailer: git-send-email 2.17.1 X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-Headers-End: 1jbAHY-00FmJx-MX Subject: [Openvpn-devel] [PATCH v3 0/5] Implement additional two step authentication methods X-BeenThere: openvpn-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: openvpn-devel-bounces@lists.sourceforge.net X-getmail-retrieved-from-mailbox: Inbox This patchset implements the basic blocks for a more flexible authentication protocol in OpenVPN. The basic idea is to instead of giving a immediate deny/accept the client gets a additional challgen via the info message to a 2FA method or external authentication with URL (e.g. via SAML). The patch already sends the AUTH_PENDING control message. An OpenVPN3 cliets needs this to scale back pull request frequency, OpenVPN2 currently logs a warning about an unknown. This will be fixed in a follw up patch Currently both client and server side need a management interface make the support work. For a server script follow up patch, I am currently waiting for the client-connect patch set to be merge and for the client side, David offered to help with helping with the getting an async password input working. Arne Schwabe (5): Implement parsing and sending INFO and INFO_PRE control messages Implement support for signalling IV_SSO to server Implement sending response to challenge via CR_RESPONSE Implement sending AUTH_PENDING challenges to clients Implement forwarding client CR_RESPONSE messages to management doc/management-notes.txt | 130 ++++++++++++++++++++++++++++++++++++++- src/openvpn/forward.c | 12 ++++ src/openvpn/init.c | 39 ++++++++++++ src/openvpn/manage.c | 113 +++++++++++++++++++++++++++++++++- src/openvpn/manage.h | 9 +++ src/openvpn/multi.c | 19 ++++++ src/openvpn/push.c | 78 +++++++++++++++++++++++ src/openvpn/push.h | 12 ++++ src/openvpn/ssl.c | 4 +- 9 files changed, 412 insertions(+), 4 deletions(-)