From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jani Juhani Sinervo Newsgroups: gmane.emacs.bugs Subject: bug#60499: 28.2; tramp: Remote host name not always accounted when computing multi-hops Date: Mon, 02 Jan 2023 13:57:29 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38459"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Evolution 3.46.2 (by Flathub.org) To: 60499@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jan 02 19:24:19 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pCPTt-0009ip-RR for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 02 Jan 2023 19:24:19 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pCPTi-0005Zh-1m; Mon, 02 Jan 2023 13:24:06 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pCPTf-0005ZN-Ex for bug-gnu-emacs@gnu.org; Mon, 02 Jan 2023 13:24:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pCPTf-0002Pc-6s for bug-gnu-emacs@gnu.org; Mon, 02 Jan 2023 13:24:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pCPTe-0005E8-Ls for bug-gnu-emacs@gnu.org; Mon, 02 Jan 2023 13:24:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Jani Juhani Sinervo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 02 Jan 2023 18:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 60499 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.167268378820025 (code B ref -1); Mon, 02 Jan 2023 18:24:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 2 Jan 2023 18:23:08 +0000 Original-Received: from localhost ([127.0.0.1]:44020 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pCPSl-0005Cs-0V for submit@debbugs.gnu.org; Mon, 02 Jan 2023 13:23:08 -0500 Original-Received: from lists.gnu.org ([209.51.188.17]:41944) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pCJS8-0004JR-NA for submit@debbugs.gnu.org; Mon, 02 Jan 2023 06:58:05 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pCJS8-0007Dh-Dz for bug-gnu-emacs@gnu.org; Mon, 02 Jan 2023 06:58:04 -0500 Original-Received: from mail2.aboa.net ([212.146.44.12]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pCJS4-00041w-KY for bug-gnu-emacs@gnu.org; Mon, 02 Jan 2023 06:58:04 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=sinervo.fi; h=message-id :subject:from:to:date:content-type:content-transfer-encoding :mime-version; q=dns; s=private; b=JMXV/p0L5OVEQcARxYhNyIyhQbUNy jmJg0MVal1WIts2CVGBiNvAqAhJc/uK8v0bOZFLHtG3ZvHZ5iDhNzg8Tf+HrW0WT YZw0DiFH+/9o1z7VaEfESzUcpR4sdUK3onwcBhWT0tILGO+d/htFLyg2Hma/8K5v qMtIs8HG486I0A= DKIM-Signature: v=1; a=rsa-sha1; c=simple; d=sinervo.fi; h=message-id :subject:from:to:date:content-type:content-transfer-encoding :mime-version; s=private; bh=VtzoaNmDUzGQdC9MNNtC/nkdswI=; b=f+z K/KhhrepFTG5/7ZlEmWyzR+QQepOnjdx3E1wMx7H+pGNSlh24DXcVufGLrQNFtc2 Kj8NZJ8dc1wH2hkCsNvePgS0SrHtl+lk95QByJWhincV2MHDA5YzSo5NXAAIZ32R 0mpegLlr4xq7KgufXSQdjESSowaa6yGATHAJkQOU= Original-Received: (qmail 13183 invoked by uid 89); 2 Jan 2023 11:57:39 -0000 Comment: DomainKeys? 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(jani@sinervo.fi@93.106.137.199) by mail2 with ESMTPA; 2 Jan 2023 11:57:39 -0000 Received-SPF: pass client-ip=212.146.44.12; envelope-from=jani@sinervo.fi; helo=mail2.aboa.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 02 Jan 2023 13:23:05 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:252352 Archived-At: When using a custom TRAMP method with a program that expects the host name to be passed in as an argument to a command-line switch, the natural way of writing the `tramp-login-args' like (("--switch" "%h")) does not work, since `tramp-compute-multi-hops' only considers the host name to have been used within the command template, if it is in its own list, as in (("--switch") ("%h")). This is a problem, because there are tools, like Toolbox[0], which allow running the command within a specific container. For example with Toolbox, it would look something like the following: `toolbox run -c container-name-here command' This can be turned into a TRAMP method relatively easily, and the most natural way to write the `tramp-login-args' would be the following: (tramp-login-args (("run") ("-c" "%h") ("sh"))) This however will not work for the aforementioned bug in `tramp-compute-multi-hops'. While splitting the "-c" and "%h" into their own lists works, and would work for the usecase of `C-x C-f /toolbox:container-name-here:', there is a reasonable interpretation for `C-x C-f /toolbox::', entering the default container, in which case splitting the optional "-c"-flag from the "host name" would not be the valid thing to do. [0]: https://containertoolbx.org/ Steps to reproduce from `emacs -Q': 1. Evaluate the following Lisp in the scratch buffer: (require 'tramp) (add-to-list 'tramp-methods =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (c= ons "ssh4" =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 '((tramp-login-program "ssh") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (tramp-login-args (("-l" "%u"= ) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("-p" "%p") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("%c") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("-e" "none") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("-t" "-t") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("-o" "RemoteCommand=3D\"%l\"") =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0("-4" "%h"))) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (tramp-remote-shell "/bin/sh"= ) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (tramp-remote-shell-login =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ("-l")) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (tramp-remote-shell-args =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ("-c"))))) 2. Try to connect somewhere with this method, for example by doing: `C-x C-f /ssh4:example.org: TAB' Expected behavior: TRAMP should try to connect to the host according to the method definition. Actual behavior: TRAMP gives the error message: Host name =E2=80=98example.org=E2=80=99 does not match =E2=80=98\`\(127\.0\.0\.1\|::1\|hostname\|localhost6?\)\'=E2=80=99 The code responsible can be found in `lisp/net/tramp.el' and within the function `tramp-compute-multi-hops'. Excerpt: ;; Some methods ("su", "sg", "sudo", "doas", "ksu") do not use the ;; host name in their command template.=C2=A0 In this case, the remote ;; file name must use either a local host name (first hop), or a ;; host name matching the previous hop. (let ((previous-host (or tramp-local-host-regexp ""))) =C2=A0 (setq choices target-alist) =C2=A0 (while (setq item (pop choices)) =C2=A0=C2=A0=C2=A0 (let ((host (tramp-file-name-host item))) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (unless =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (or =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ;; The host na= me is used for the remote shell command. =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (member =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 '("%h") = (tramp-get-method-parameter item 'tramp-login- args)) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ;; The host na= me must match previous hop. =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (string-match-= p previous-host host)) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (setq tramp-default-proxies-alis= t saved-tdpa) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (tramp-user-error =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 vec "Host name `%s' does n= ot match `%s'" host previous-host)) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (setq previous-host (concat "^" (regexp-quot= e host) "$"))))) We notice that the culprit here is the call to `member', where it erroneously checks for the host name being used by the command template by only checking whether the literal list '("%h") is within the `tramp-login-args'. My proposed fix would be the go through the `tramp-login-args' method parameter, and go through each of the list-of-lists to check whether there is a string "%h" there. In GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.35, cairo version 1.16.0) =C2=A0of 2022-12-09 built on cncf-x86-3 Windowing system distributor 'The X.Org Foundation', version 11.0.12201007 System Description: Freedesktop.org SDK 22.08 (Flatpak runtime) Configured using: =C2=A0'configure --prefix=3D/app --with-gnutls 'CFLAGS=3D-O2 -g -pipe =C2=A0-Wp,-D_FORTIFY_SOURCE=3D2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions =C2=A0-fstack-protector-strong -grecord-gcc-switches =C2=A0-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection =C2=A0-fno-omit-frame-pointer ' 'LDFLAGS=3D-L/app/lib -Wl,-z,relro,-z,now =C2=A0-Wl,--as-needed '' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM GTK3 ZLIB Important settings: =C2=A0 value of $LANG: en_GB.UTF-8 =C2=A0 value of $XMODIFIERS: @im=3Dibus 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elec-pair cus-edit cus-load wid-edit icomplete geiser slime-tramp docker-tramp tramp-cache tramp tramp-loaddefs trampver tramp-integration files-x tramp-compat parse-time iso8601 ls-lisp slime-asdf grep slime-fancy slime-indentation slime-cl-indent cl-indent slime-trace-dialog slime-fontifying-fu slime-package-fu slime- references slime-compiler-notes-tree advice slime-scratch slime-presentations bridge slime-macrostep macrostep slime-mdot-fu slime-enclosing-context slime-fuzzy slime-fancy-trace slime-fancy-inspector slime-c-p-c slime-editing-commands slime-autodoc slime-repl slime-parse slime arc-mode archive-mode pp hyperspec ibuffer ibuffer-loaddefs elixir-mode elixir-format elixir-smie pass f f-shortdoc shortdoc s password-store auth-source-pass adoc-mode tempo markup-faces markdown-mode edit-indirect color haskell-mode haskell-cabal haskell-utils haskell-font-lock haskell-indentation haskell-string haskell-sort-imports haskell-lexeme haskell-align-imports haskell-complete-module haskell-ghc-support noutline outline etags fileloop generator xref dabbrev haskell-customize typescript-mode cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs irony irony-iotask meson-mode smie tango-theme yasnippet magit-submodule magit-obsolete magit-blame magit-stash magit-reflog magit-bisect magit-push magit-pull magit-fetch magit-clone magit-remote magit-commit magit-sequence magit-notes magit-worktree magit-tag magit-merge magit-branch magit-reset magit-files magit-refs magit- status magit magit-repos magit-apply magit-wip magit-log which-func imenu magit-diff smerge-mode diff diff-mode git-commit rx log-edit message rmc puny dired dired-loaddefs rfc822 mml mml-sec epa derived epg rfc6068 epg-config gnus-util rmail rmail-loaddefs time-date mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr mailabbrev mail-utils gmm-utils mailheader pcvs-util add-log magit-core magit-autorevert autorevert filenotify magit-margin magit-transient magit-process with-editor shell pcomplete server magit-mode transient edmacro kmacro magit-git magit-base magit-section format-spec crm dash compat-27 compat-26 compat compat-macs flymake- proc flymake project compile text-property-search comint ansi-color ring warnings thingatpt corfu cl-extra help-mode use-package-bind-key bind-key easy-mmode use-package-ensure use-package-core tex-site slime-autoloads info package browse-url url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap url-handlers url-parse auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json subr-x map url-vars seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib iso-transl tooltip eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x- dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 262115 24837) =C2=A0(symbols 48 27853 4) =C2=A0(strings 32 93904 4769) =C2=A0(string-bytes 1 3030693) =C2=A0(vectors 16 50616) =C2=A0(vector-slots 8 589420 28184) =C2=A0(floats 8 264 120) =C2=A0(intervals 56 490 79) =C2=A0(buffers 992 13))