From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel,gmane.comp.encryption.gpg.gnutls.devel Subject: Re: Emacs core TLS support Date: Sun, 26 Sep 2010 01:09:20 -0500 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <87r5gh2fzj.fsf@lifelogs.com> References: <878wc1vfh3.fsf@lifelogs.com> <87r5ptpnz2.fsf@stupidchicken.com> <871vhsvkut.fsf@lifelogs.com> <87d41csktn.fsf@lifelogs.com> <87k4v0n0m8.fsf@lifelogs.com> <87wrrvfnc4.fsf@lifelogs.com> <87r5i2d00q.fsf@lifelogs.com> <87zkwqijye.fsf@stupidchicken.com> <878w4actmg.fsf@lifelogs.com> <877hju123h.fsf@stupidchicken.com> <8762yklrdk.fsf@lifelogs.com> <87wrqzhrjv.fsf@lifelogs.com> <87fwxmihyz.fsf@lifelogs.com> <8762ycfhqo.fsf@lifelogs.com> <87d3sf9soo.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1285481396 30944 80.91.229.12 (26 Sep 2010 06:09:56 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 26 Sep 2010 06:09:56 +0000 (UTC) Cc: gnutls-devel@gnu.org To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Sep 26 08:09:52 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OzkQq-0000fS-0v for ged-emacs-devel@m.gmane.org; Sun, 26 Sep 2010 08:09:52 +0200 Original-Received: from localhost ([127.0.0.1]:41273 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OzkQp-00087m-6l for ged-emacs-devel@m.gmane.org; Sun, 26 Sep 2010 02:09:51 -0400 Original-Received: from [140.186.70.92] (port=60121 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OzkQe-00086G-MJ for emacs-devel@gnu.org; Sun, 26 Sep 2010 02:09:41 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OzkQc-0000xA-Lc for emacs-devel@gnu.org; Sun, 26 Sep 2010 02:09:40 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:50891) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OzkQc-0000x4-Am for emacs-devel@gnu.org; Sun, 26 Sep 2010 02:09:38 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OzkQX-0000d0-7d for emacs-devel@gnu.org; Sun, 26 Sep 2010 08:09:33 +0200 Original-Received: from c-24-14-16-248.hsd1.il.comcast.net ([24.14.16.248]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Sep 2010 08:09:33 +0200 Original-Received: from tzz by c-24-14-16-248.hsd1.il.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 26 Sep 2010 08:09:33 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 66 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: c-24-14-16-248.hsd1.il.comcast.net X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:fwV19ppw8ATqMts2NbsVAbfxbFY= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:130897 gmane.comp.encryption.gpg.gnutls.devel:4538 Archived-At: On Wed, 15 Sep 2010 14:13:57 +0200 Nikos Mavrogiannopoulos wrote: NM> Use/check the gnutls-http-serv script in doc/credentials. It sets up a NM> server with a certificate, ready for testing. If the server doesn't NM> have a certificate it wouldn't be able to fully operate. OK, this server works with ex-client2 and with a regular web browser like w3m, but not with Emacs. The only difference between ex-client2 and my code AFAICT is that it specifies the trust file as "ca.pem" and then calls `gnutls_certificate_set_x509_trust_file' with that missing file without checking the return code. I tried that and it didn't make a difference. I keep getting error GNUTLS_E_UNEXPECTED_PACKET_LENGTH after a bunch of handshakes. I've gone over my code carefully and just can't figure out what's different. I'm sure it's something simple I've overlooked. So I checked my changes into the Emacs repo in order to have other, more expert developers take a look. All the tedious work is done; the files of interest are src/process.[ch] (where the process is set up with the GnuTLS members), src/gnutls.[ch], and lisp/net/gnutls.el. Here's the recipe to see the problem: 1) compile Emacs with ./configure --with-gnutls; make bootstrap 2) run it directly: cd src gdb --args ./emacs ../lisp/net/gnutls.el 3) when it loads, do: (you'll also need the gnutls-http-serv running locally) M-x eval-buffer M-: (open-ssl-stream "tls" "tls-buffer" "localhost" 5556) 4) look in *Messages* for the errors: gnutls: allocating credentials gnutls: allocating x509 credentials gnutls: setting the trustfile gnutls: processed 142 CA certificates gnutls: setting the keyfile gnutls: gnutls_init gnutls: setting the priority string gnutls: setting the credentials gnutls: setting the x509 credentials gnutls: handshake: setting the transport pointers to 8/8 gnutls: handshake: handshaking gnutls.el: (err=[gnutls-e-again] Resource temporarily unavailable, try again.) handshake: nil gnutls: handshake: handshaking ... repeated a LOT ... gnutls.el: (err=[gnutls-e-again] Resource temporarily unavailable, try again.) handshake: nil gnutls: handshake: handshaking [2 times] gnutls.el: (err=[gnutls-e-again] Resource temporarily unavailable, try again.) handshake: nil gnutls: handshake: handshaking gnutls.el: (err=[-9] A TLS packet with unexpected length was received.) handshake: nil Ouch, error return -9 (A TLS packet with unexpected length was received.) nil Mark set [2 times] Ted