GNU bug report logs - #2837
23.0.91; tramp: ssh passphrase vs. password

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: trentbuck <at> gmail.com
To: emacs-pretest-bug <at> gnu.org
Cc: rfrancoise <at> debian.org
Subject: 23.0.91; tramp: ssh passphrase vs. password
Date: Tue, 31 Mar 2009 17:11:26 -0700 (PDT)

Just now I tried to open /ssh:dhcp98:/ and it asked me for "dhcp98's
password".  It *should* have asked me for the passphrase for one of my
SSH keys (id_rsa).  This either means that the prompt is misleading
(i.e. it wants my passphrase) or worse, that it genuinely wants to use
password-based authentication (i.e. ignoring my key).

In GNU Emacs 23.0.91.1 (i486-pc-linux-gnu)
 of 2009-03-30 on elegiac, modified by Debian
 (emacs-snapshot package, version 1:20090329-1)
configured using `configure  '--build' 'i486-linux-gnu' '--host' 'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.91/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.91/site-lisp:/usr/share/emacs/site-lisp' '--with-x=no' '--without-dbus' '--without-sound' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_AU.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: rcirc

Minor modes in effect:
  rcirc-track-minor-mode: t
  savehist-mode: t
  shell-dirtrack-mode: t
  icomplete-mode: t
  partial-completion-mode: t
  show-paren-mode: t
  delete-selection-mode: t
  use-hard-newlines: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-g C-g C-g C-x C-f C-f ESC O A C-g C-x C-f / s C-g 
ESC x r e p o r t SPC e m a c s SPC b u g RET

Recent messages:
Saving file /home/twb/.newsrc.eld...
Wrote /home/twb/.newsrc.eld
Saving /home/twb/.newsrc.eld...done
Loading tramp...done
Tramp: Opening connection for dhcp98 using ssh...
Tramp: Waiting 60s for local shell to come up...
Tramp: Sending command `ssh dhcp98   -q -e none && exit || exit'
Tramp: Waiting for prompts from remote shell
Tramp: Sending password
Quit [4 times]
Quit

Message #10 received at 2837 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: trentbuck <at> gmail.com
Cc: 2837 <at> debbugs.gnu.org, rfrancoise <at> debian.org
Subject: Re: bug#2837: 23.0.91; tramp: ssh passphrase vs. password
Date: Wed, 01 Apr 2009 06:59:59 +0200

trentbuck <at> gmail.com writes:

> Just now I tried to open /ssh:dhcp98:/ and it asked me for "dhcp98's
> password".  It *should* have asked me for the passphrase for one of my
> SSH keys (id_rsa).  This either means that the prompt is misleading
> (i.e. it wants my passphrase) or worse, that it genuinely wants to use
> password-based authentication (i.e. ignoring my key).

Tramp tries to find out, whether it shall ask for the "password" or the
"passphrase". It checks ssh's prompt for this.

What does ssh asks you, if you apply "ssh dhcp98" from a shell?

Best regards, Michael.

Message #15 received at 2837 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Trent W. Buck" <trentbuck <at> gmail.com>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 2837 <at> debbugs.gnu.org, rfrancoise <at> debian.org
Subject: Re: bug#2837: 23.0.91; tramp: ssh passphrase vs. password
Date: Wed, 1 Apr 2009 16:19:57 +1100

On Wed, Apr 01, 2009 at 06:59:59AM +0200, Michael Albinus wrote:
> trentbuck <at> gmail.com writes:
> 
> > Just now I tried to open /ssh:dhcp98:/ and it asked me for "dhcp98's
> > password".  It *should* have asked me for the passphrase for one of my
> > SSH keys (id_rsa).  This either means that the prompt is misleading
> > (i.e. it wants my passphrase) or worse, that it genuinely wants to use
> > password-based authentication (i.e. ignoring my key).
> 
> Tramp tries to find out, whether it shall ask for the "password" or the
> "passphrase". It checks ssh's prompt for this.
> 
> What does ssh asks you, if you apply "ssh dhcp98" from a shell?

I'm using OpenSSH and an ssh-agent is running, and Emacs can see that
agent.  When I have not used ssh-add, I see this:

$ ssh dhcp98
Enter passphrase for key '/home/twb/.ssh/id_rsa':

Message #20 received at 2837 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: "Trent W. Buck" <trentbuck <at> gmail.com>
Cc: 2837 <at> debbugs.gnu.org, rfrancoise <at> debian.org
Subject: Re: bug#2837: 23.0.91; tramp: ssh passphrase vs. password
Date: Wed, 01 Apr 2009 07:43:19 +0200

"Trent W. Buck" <trentbuck <at> gmail.com> writes:

> I'm using OpenSSH and an ssh-agent is running, and Emacs can see that
> agent.  When I have not used ssh-add, I see this:
>
> $ ssh dhcp98
> Enter passphrase for key '/home/twb/.ssh/id_rsa':

That shall be sufficient for Tramp (it shall recognize "passphrase").

Which Tramp version do you use (C-h v tramp-version)? Can you show me
Tramp's traces with level 6?

Best regards, Michael.

Message #25 received at 2837-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Trent W. Buck" <trentbuck <at> gmail.com>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 2837-done <at> debbugs.gnu.org, rfrancoise <at> debian.org
Subject: Re: bug#2837: 23.0.91; tramp: ssh passphrase vs. password
Date: Wed, 1 Apr 2009 17:01:50 +1100

Hmm, now it prints:

    Passphrase for /ssh:dhcp98:

So I guess I just misread passphrase as password this morning...
FWIW, here are the details you requested.  Sorry to bother you!

On Wed, Apr 01, 2009 at 07:43:19AM +0200, Michael Albinus wrote:
> "Trent W. Buck" <trentbuck <at> gmail.com> writes:
> 
> > I'm using OpenSSH and an ssh-agent is running, and Emacs can see that
> > agent.  When I have not used ssh-add, I see this:
> >
> > $ ssh dhcp98
> > Enter passphrase for key '/home/twb/.ssh/id_rsa':
> 
> That shall be sufficient for Tramp (it shall recognize "passphrase").
> 
> Which Tramp version do you use (C-h v tramp-version)?

tramp-version is a variable defined in `trampver.el'.
Its value is "2.1.15"

I'm using the version that shipped with my emacs-snapshot: GNU Emacs
23.0.91.1 (i486-pc-linux-gnu) of 2009-03-30 on elegiac, modified by
Debian.

> Can you show me Tramp's traces with level 6?

    16:55:55 tramp-send-command (6) # echo are you awake
    16:55:55 tramp-wait-for-regexp (6) # 
    are you awake

    ///d257b36da3eb455ce42242ed8ee37ff9
    16:55:55 tramp-send-command (6) # cd /home/twb/ 2>/dev/null; echo tramp_exit_status $? 
    16:55:55 tramp-wait-for-regexp (6) # 
    tramp_exit_status 0

    ///d257b36da3eb455ce42242ed8ee37ff9
    16:55:55 tramp-send-command (6) # /bin/ls -ab 2>/dev/null | while read f; do if test -d "$f" 2>/dev/null; then echo "$f/"; else echo "$f"; fi; done
    16:55:55 tramp-wait-for-regexp (6) # 
    ./
    ../
    .Auto/
    .SemiAuto/
    .Xauthority
    .Xclients
    .Xdefaults
    .Xresources
    .al/
    .aptitude/
    .bash_history
    .bash_profile
    .bash_profile-darcs-backup0
    .bash_profile-darcs-backup1
    .bash_profile-darcs-backup2
    .bash_profile-darcs-backup3
    .bashrc
    .bin/
    .cabal/
    .cache/
    .config/
    .crawlrc
    .darcs/
    .debtags/
    .devscripts_cache/
    .dillo/
    .dosage/
    .dupload.conf
    .emacs
    .emacs.d/
    .festivalrc
    .forward
    .gconf/
    .gconfd/
    .ghc/
    .gimp-2.2/
    .gnome2/
    .gnome2_private/
    .gnupg/
    .gnupg~/
    .gnus.el
    .gtkrc
    .gtkrc-2.0
    .hgignore
    .hgrc
    .html2psrc
    .inkscape/
    .inputrc
    .ircrc
    .lesshst
    .mailrc
    .mg
    .mozilla/
    .mplayer/
    .msmtprc
    .muttrc
    .nanorc
    .netrc
    .offlineimaprc
    .procmailrc
    .pythonrc
    .quiltrc
    .ratpoisonrc
    .rcirc.el
    .rcirc.el-darcs-backup0
    .recently-used
    .reportbugrc
    .rst2pdf/
    .rtorrent.rc
    .rtrc
    .screen.el
    .screen.secrets
    .screenrc
    .ssh/
    .ssh~/
    .stumpwmrc
    .thumbnails/
    .tramp_history
    .vimrc
    .w3m/
    .wgetrc
    .xinitrc
    .xmonad/
    .xscreensaver
    .xsession
    .xsession-errors
    .xzgvrc
    .yi/
    .zile
    Confidential/
    Desktop/
    Mail
    Preferences/
    Public/

    ///d257b36da3eb455ce42242ed8ee37ff9
    16:56:10 tramp-maybe-open-connection (3) # Opening connection for dhcp98 using ssh...
    16:56:10 tramp-maybe-open-connection (6) # /bin/sh
    16:56:10 tramp-maybe-open-connection (3) # Waiting 60s for local shell to come up...
    16:56:10 tramp-wait-for-regexp (6) # 
    $ 
    16:56:11 tramp-maybe-open-connection (3) # Sending command `ssh dhcp98   -q -e none && exit || exit'
    16:56:11 tramp-send-command (6) # ssh dhcp98   -q -e none && exit || exit
    16:56:11 tramp-process-actions (3) # Waiting for prompts from remote shell
    16:56:11 tramp-process-one-action (5) # Looking for regexp "\(.*ogin\( .*\)?: *\)\'" from remote shell
    16:56:11 tramp-process-one-action (5) # Looking for regexp "\(^.*\([pP]assword\|[pP]assphrase\).*:? *\)\'" from remote shell
    16:56:11 tramp-process-one-action (5) # Call `tramp-action-password'
    16:56:11 tramp-action-password (3) # Sending password

Message #26 received at 2837-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: "Trent W. Buck" <trentbuck <at> gmail.com>
Cc: 2837-done <at> debbugs.gnu.org, rfrancoise <at> debian.org
Subject: Re: bug#2837: 23.0.91; tramp: ssh passphrase vs. password
Date: Wed, 01 Apr 2009 08:03:47 +0200

"Trent W. Buck" <trentbuck <at> gmail.com> writes:

> Hmm, now it prints:
>
>     Passphrase for /ssh:dhcp98:
>
> So I guess I just misread passphrase as password this morning...

No problem, I'm glad there's nothing to fix. I'll close the ticket.

Best regards, Michael.

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