GNU bug report logs - #30252
Rudel cannot join infinote

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Teppo <teppo <at> www.tm.iki.fi>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.5; Rudel cannot join infinote over starttls
Date: Thu, 25 Jan 2018 20:40:32 +0200

I attempted to join an Infinote server using Rudel plugin. Emacs
attempts to connect and hangs.

According to strace, Emacs does
"execve("/usr/bin/gnutls-cli", ["/usr/bin/gnutls-cli", "--starttls",
"--kx", "ANON_DH", "--port", "6523", "my-server-name.invalid"], [/* 41
vars */] <unfinish

The parameter --kx is not recognized by the gnutls-cli. This is
probably the root cause for things going wrong.

Both Emacs and gnutls-cli were installed though the package manager of
Debian 9. Rudel was installed using the package-install command of Emacs.


Did not crash, but became unresponsive until externally killed.

In GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-09-12 on hullmann, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11902000
System Description:	Debian GNU/Linux 9.3 (stretch)

Configured using:
 `configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --without-gnutls --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --without-gnutls --with-x=yes --with-x-toolkit=gtk3
 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -fdebug-prefix-map=/build/emacs24-24.5+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall -fno-PIE' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-z,relro -no-pie''

Important settings:
  value of $LANG: en_GB.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Loading debian-ispell...
Loading /var/cache/dictionaries-common/emacsen-ispell-default.el (source)...done
Loading debian-ispell...done
Loading /var/cache/dictionaries-common/emacsen-ispell-dicts.el (source)...done
Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...done
Loading /etc/emacs/site-start.d/50festival.el (source)...done
Loading /etc/emacs/site-start.d/50gnugo.el (source)...done
Loading /etc/emacs/site-start.d/50lilypond-data.el (source)...done
Loading /etc/emacs/site-start.d/50python-docutils.el (source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
/usr/share/emacs24/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode
/usr/share/emacs/24.5/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup

Features:
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easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
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simple abbrev minibuffer nadvice loaddefs button faces cus-face macroexp
files text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind gfilenotify dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 79084 6476)
 (symbols 48 18071 0)
 (miscs 40 99 88)
 (strings 32 11318 4926)
 (string-bytes 1 311676)
 (vectors 16 9533)
 (vector-slots 8 389741 12215)
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 (intervals 56 256 22)
 (buffers 960 12))

Message #8 received at 30252 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Teppo <teppo <at> www.tm.iki.fi>
Cc: 30252 <at> debbugs.gnu.org
Subject: Re: bug#30252: 24.5; Rudel cannot join infinote over starttls
Date: Thu, 25 Jan 2018 14:02:18 -0500

On Thu, Jan 25, 2018 at 1:40 PM, Teppo <teppo <at> www.tm.iki.fi> wrote:
>
> I attempted to join an Infinote server using Rudel plugin. Emacs
> attempts to connect and hangs.
>
> According to strace, Emacs does
> "execve("/usr/bin/gnutls-cli", ["/usr/bin/gnutls-cli", "--starttls",
> "--kx", "ANON_DH", "--port", "6523", "my-server-name.invalid"], [/* 41
> vars */] <unfinish
>
> The parameter --kx is not recognized by the gnutls-cli. This is
> probably the root cause for things going wrong.
>
> Both Emacs and gnutls-cli were installed though the package manager of
> Debian 9. Rudel was installed using the package-install command of Emacs.
>
>
> Did not crash, but became unresponsive until externally killed.

Does it work if you install libgnutls and use that instead of
gnutls-cli (M-: (gnutls-available-p) RET should give t)? AFAIK, the
gnutls-cli method is not really maintained anymore.

Although, Rudel is not exactly being worked on either, not sure if it
would work regardless.

Message #11 received at 30252 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Teppo <teppo <at> www.tm.iki.fi>
Cc: 30252 <at> debbugs.gnu.org
Subject: Re: bug#30252: 24.5; Rudel cannot join infinote over starttls
Date: Thu, 25 Jan 2018 14:05:46 -0500

Teppo wrote:

> I attempted to join an Infinote server using Rudel plugin. Emacs
> attempts to connect and hangs.
>
> According to strace, Emacs does
> "execve("/usr/bin/gnutls-cli", ["/usr/bin/gnutls-cli", "--starttls",
> "--kx", "ANON_DH", "--port", "6523", "my-server-name.invalid"], [/* 41
> vars */] <unfinish
>
> The parameter --kx is not recognized by the gnutls-cli. This is
> probably the root cause for things going wrong.

The string "--kx" appears nowhere in the Emacs 24 sources.
I see it comes from rudel-tls.el,

https://github.com/emacsmirror/rudel/blob/master/rudel-tls.el#L60

which is apparently an external in GNU Elpa.

https://elpa.gnu.org/packages/rudel.html

says to report bugs to

http://sourceforge.net/tracker/?group_id=249139

which doesn't exist.

A search finds

https://sourceforge.net/p/rudel/issues/17/

where the identical issue was reported six years ago.

So it's not looking good for it ever being fixed.

(Why are unmaintained packages added to GNU Elpa?)

As an aside, emacs25 is available for Debian 9, with built-in gnutls support:
apt-get install emacs25
But it won't unbreak rudel.el.

Message #14 received at 30252 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 30252 <at> debbugs.gnu.org, Teppo <teppo <at> www.tm.iki.fi>
Subject: Re: bug#30252: 24.5; Rudel cannot join infinote over starttls
Date: Thu, 25 Jan 2018 15:00:27 -0500

On Thu, Jan 25, 2018 at 2:05 PM, Glenn Morris <rgm <at> gnu.org> wrote:

> A search finds
>
> https://sourceforge.net/p/rudel/issues/17/
>
> where the identical issue was reported six years ago.

There's a trivial patch there, maybe we should apply it?

--- rudel-tls.el 2010-02-01 18:19:09.000000000 -0500
+++ /home/mako/elisp/rudel-0.2-4/rudel-tls.el 2011-09-25
17:05:11.000000000 -0400
@@ -53,7 +53,7 @@
   :type  'file)

 (defcustom rudel-tls-client-arguments
-  "--starttls --kx ANON_DH --port %p %h"
+  "--starttls --priority NORMAL:+ANON-DH --port %p %h"
   "Arguments passed to the gnutls client program."
   :group 'rudel
   :type  'string)

Message #17 received at 30252 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Noam Postavsky <npostavs <at> users.sourceforge.net>
Cc: Glenn Morris <rgm <at> gnu.org>, Teppo <teppo <at> www.tm.iki.fi>,
 30252 <at> debbugs.gnu.org
Subject: Re: bug#30252: 24.5; Rudel cannot join infinote over starttls
Date: Tue, 17 Apr 2018 22:05:19 +0200

Noam Postavsky <npostavs <at> users.sourceforge.net> writes:

> There's a trivial patch there, maybe we should apply it?
>
> --- rudel-tls.el 2010-02-01 18:19:09.000000000 -0500
> +++ /home/mako/elisp/rudel-0.2-4/rudel-tls.el 2011-09-25
> 17:05:11.000000000 -0400
> @@ -53,7 +53,7 @@
>    :type  'file)
>
>  (defcustom rudel-tls-client-arguments
> -  "--starttls --kx ANON_DH --port %p %h"
> +  "--starttls --priority NORMAL:+ANON-DH --port %p %h"
>    "Arguments passed to the gnutls client program."
>    :group 'rudel
>    :type  'string)

How do we apply patches to external packages in GNU ELPA, anyway?
rudel-tls.el doesn't seem to exist in my ELPA git...

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #20 received at 30252 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Glenn Morris <rgm <at> gnu.org>, 30252 <at> debbugs.gnu.org,
 Teppo <teppo <at> www.tm.iki.fi>
Subject: Re: bug#30252: 24.5; Rudel cannot join infinote over starttls
Date: Tue, 17 Apr 2018 22:22:22 -0400

retitle 30252 Rudel cannot join infinote
quit

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> How do we apply patches to external packages in GNU ELPA, anyway?
> rudel-tls.el doesn't seem to exist in my ELPA git...

It's in the externals/rudel branch.  But anyway, I tried the patch and
it doesn't help.  In fact, I tried connecting to an infinoted started
with option --security-policy=no-tls over the tcp transport, and it
still got stuck, so it seems the tls thing is just a red herring.

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