1
0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-11-30 08:09:04 +00:00
emacs/lisp/net/tramp-androidsu.el
Po Lu 32b4f9d21b Disable process tracing before launching /system/bin/su
* lisp/net/tramp-androidsu.el
(tramp-androidsu-maybe-open-connection): Disable process tracing
around start-process, that the setuid su binary may be started
regardless of its status.
2024-02-27 10:05:56 +08:00

543 lines
23 KiB
EmacsLisp

;;; tramp-androidsu.el --- TRAMP method for Android superuser shells -*- lexical-binding:t -*-
;; Copyright (C) 2024 Free Software Foundation, Inc.
;; Keywords: comm, processes
;; Package: tramp
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; The `su' method struggles (as do other shell-based methods) with the
;; crippled versions of many Unix utilities installed on Android,
;; workarounds for which are implemented in the `adb' method. This
;; method defines a shell-based method that is identical in function to
;; `su', but reuses such code from the `adb' method where applicable and
;; also provides for certain mannerisms of popular Android `su'
;; implementations.
;;; Code:
(require 'tramp)
(require 'tramp-adb)
(require 'tramp-sh)
;;;###tramp-autoload
(defconst tramp-androidsu-method "androidsu"
"When this method name is used, forward all calls to su.")
;;;###tramp-autoload
(tramp--with-startup
(add-to-list 'tramp-methods
`(,tramp-androidsu-method
(tramp-login-program "su")
(tramp-login-args (("-") ("%u")))
(tramp-remote-shell "/system/bin/sh")
(tramp-remote-shell-login ("-l"))
(tramp-remote-shell-args ("-c"))
(tramp-tmpdir "/data/local/tmp")
(tramp-connection-timeout 10)))
(add-to-list 'tramp-default-host-alist
`(,tramp-androidsu-method nil "localhost")))
(defvar android-use-exec-loader) ; androidfns.c.
(defun tramp-androidsu-maybe-open-connection (vec)
"Open a connection VEC if not already open.
Mostly identical to `tramp-adb-maybe-open-connection', but also disables
multibyte mode and waits for the shell prompt to appear."
;; During completion, don't reopen a new connection.
(unless (tramp-connectable-p vec)
(throw 'non-essential 'non-essential))
(with-tramp-debug-message vec "Opening connection"
(let ((p (tramp-get-connection-process vec))
(process-name (tramp-get-connection-property vec "process-name"))
(process-environment (copy-sequence process-environment)))
;; Open a new connection.
(condition-case err
(unless (process-live-p p)
(with-tramp-progress-reporter
vec 3
(if (tramp-string-empty-or-nil-p (tramp-file-name-user vec))
(format "Opening connection %s for %s using %s"
process-name
(tramp-file-name-host vec)
(tramp-file-name-method vec))
(format "Opening connection %s for %s@%s using %s"
process-name
(tramp-file-name-user vec)
(tramp-file-name-host vec)
(tramp-file-name-method vec)))
(let* ((coding-system-for-read 'utf-8-unix)
(process-connection-type tramp-process-connection-type)
;; The executable loader cannot execute setuid
;; binaries, such as su.
(android-use-exec-loader nil)
(p (start-process (tramp-get-connection-name vec)
(tramp-get-connection-buffer vec)
;; Disregard
;; tramp-encoding-shell, as
;; there's no guarantee that it's
;; possible to execute with
;; `android-use-exec-loader' off.
"/system/bin/sh" "-i"))
(user (tramp-file-name-user vec))
command)
;; Set sentinel. Initialize variables.
(set-process-sentinel p #'tramp-process-sentinel)
(tramp-post-process-creation p vec)
;; Replace `login-args' place holders.
(setq command (format "exec su - %s || exit"
(or user "root")))
;; Send the command.
(tramp-message vec 3 "Sending command `%s'" command)
(tramp-adb-send-command vec command t t)
;; Android su binaries contact a background service to
;; obtain authentication; during this process, input
;; received is discarded, so input cannot be
;; guaranteed to reach the root shell until its prompt
;; is displayed.
(with-current-buffer (process-buffer p)
(tramp-wait-for-regexp p tramp-connection-timeout
"#[[:space:]]*$"))
;; Set connection-local variables.
(tramp-set-connection-local-variables vec)
;; Change prompt.
(tramp-adb-send-command
vec (format "PS1=%s"
(tramp-shell-quote-argument tramp-end-of-output)))
;; Disable line editing.
(tramp-adb-send-command
vec "set +o vi +o vi-esccomplete +o vi-tabcomplete +o emacs")
;; Dump option settings in the traces.
(when (>= tramp-verbose 9)
(tramp-adb-send-command vec "set -o"))
;; Disable Unicode.
(tramp-adb-send-command vec "set +U")
;; Disable echo expansion.
(tramp-adb-send-command
vec "stty -inlcr -onlcr -echo kill '^U' erase '^H'" t)
;; Check whether the echo has really been disabled.
;; Some implementations, like busybox, don't support
;; disabling.
(tramp-adb-send-command vec "echo foo" t)
(with-current-buffer (process-buffer p)
(goto-char (point-min))
(when (looking-at-p "echo foo")
(tramp-set-connection-property p "remote-echo" t)
(tramp-message vec 5 "Remote echo still on. Ok.")
;; Make sure backspaces and their echo are enabled
;; and no line width magic interferes with them.
(tramp-adb-send-command vec
"stty icanon erase ^H cols 32767"
t)))
;; Set the remote PATH to a suitable value.
(tramp-set-connection-property vec "remote-path"
"/system/bin:/system/xbin")
;; Mark it as connected.
(tramp-set-connection-property p "connected" t))))
;; Cleanup, and propagate the signal.
((error quit)
(tramp-cleanup-connection vec t)
(signal (car err) (cdr err)))))))
(defun tramp-androidsu-generate-wrapper (function)
"Return connection wrapper function for FUNCTION.
Return a function which temporarily substitutes local replacements for
the `adb' method's connection management functions around a call to
FUNCTION."
(lambda (&rest args)
(let ((tramp-adb-wait-for-output
(symbol-function #'tramp-adb-wait-for-output))
(tramp-adb-maybe-open-connection
(symbol-function #'tramp-adb-maybe-open-connection)))
(unwind-protect
(progn
;; tramp-adb-wait-for-output addresses problems introduced
;; by the adb utility itself, not Android utilities, so
;; replace it with the regular TRAMP function.
(fset 'tramp-adb-wait-for-output #'tramp-wait-for-output)
;; Likewise, except some special treatment is necessary on
;; account of flaws in Android's su implementation.
(fset 'tramp-adb-maybe-open-connection
#'tramp-androidsu-maybe-open-connection)
(apply function args))
;; Restore the original definitions of the functions overridden
;; above.
(fset 'tramp-adb-wait-for-output tramp-adb-wait-for-output)
(fset 'tramp-adb-maybe-open-connection tramp-adb-maybe-open-connection)))))
(defalias 'tramp-androidsu-handle-access-file
(tramp-androidsu-generate-wrapper #'tramp-handle-access-file))
(defalias 'tramp-androidsu-handle-add-name-to-file
(tramp-androidsu-generate-wrapper #'tramp-handle-add-name-to-file))
(defalias 'tramp-androidsu-handle-copy-directory
(tramp-androidsu-generate-wrapper #'tramp-handle-copy-directory))
(defalias 'tramp-androidsu-adb-handle-copy-file
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-copy-file))
(defalias 'tramp-androidsu-adb-handle-delete-directory
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-delete-directory))
(defalias 'tramp-androidsu-adb-handle-delete-file
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-delete-file))
(defalias 'tramp-androidsu-handle-directory-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-directory-file-name))
(defalias 'tramp-androidsu-handle-directory-files
(tramp-androidsu-generate-wrapper #'tramp-handle-directory-files))
(defalias 'tramp-androidsu-adb-handle-directory-files-and-attributes
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-directory-files-and-attributes))
(defalias 'tramp-androidsu-handle-dired-uncache
(tramp-androidsu-generate-wrapper #'tramp-handle-dired-uncache))
(defalias 'tramp-androidsu-adb-handle-exec-path
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-exec-path))
(defalias 'tramp-androidsu-handle-expand-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-expand-file-name))
(defalias 'tramp-androidsu-handle-file-accessible-directory-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-accessible-directory-p))
(defalias 'tramp-androidsu-adb-handle-file-attributes
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-attributes))
(defalias 'tramp-androidsu-handle-file-directory-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-directory-p))
(defalias 'tramp-androidsu-handle-file-equal-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-equal-p))
(defalias 'tramp-androidsu-adb-handle-file-executable-p
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-executable-p))
(defalias 'tramp-androidsu-adb-handle-file-exists-p
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-exists-p))
(defalias 'tramp-androidsu-handle-file-group-gid
(tramp-androidsu-generate-wrapper #'tramp-handle-file-group-gid))
(defalias 'tramp-androidsu-handle-file-in-directory-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-in-directory-p))
(defalias 'tramp-androidsu-sh-handle-file-local-copy
(tramp-androidsu-generate-wrapper #'tramp-sh-handle-file-local-copy))
(defalias 'tramp-androidsu-handle-file-locked-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-locked-p))
(defalias 'tramp-androidsu-handle-file-modes
(tramp-androidsu-generate-wrapper #'tramp-handle-file-modes))
(defalias 'tramp-androidsu-adb-handle-file-name-all-completions
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-name-all-completions))
(defalias 'tramp-androidsu-handle-file-name-as-directory
(tramp-androidsu-generate-wrapper #'tramp-handle-file-name-as-directory))
(defalias 'tramp-androidsu-handle-file-name-case-insensitive-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-name-case-insensitive-p))
(defalias 'tramp-androidsu-handle-file-name-completion
(tramp-androidsu-generate-wrapper #'tramp-handle-file-name-completion))
(defalias 'tramp-androidsu-handle-file-name-directory
(tramp-androidsu-generate-wrapper #'tramp-handle-file-name-directory))
(defalias 'tramp-androidsu-handle-file-name-nondirectory
(tramp-androidsu-generate-wrapper #'tramp-handle-file-name-nondirectory))
(defalias 'tramp-androidsu-handle-file-newer-than-file-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-newer-than-file-p))
(defalias 'tramp-androidsu-handle-file-notify-add-watch
(tramp-androidsu-generate-wrapper #'tramp-handle-file-notify-add-watch))
(defalias 'tramp-androidsu-handle-file-notify-rm-watch
(tramp-androidsu-generate-wrapper #'tramp-handle-file-notify-rm-watch))
(defalias 'tramp-androidsu-handle-file-notify-valid-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-notify-valid-p))
(defalias 'tramp-androidsu-adb-handle-file-readable-p
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-readable-p))
(defalias 'tramp-androidsu-handle-file-regular-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-regular-p))
(defalias 'tramp-androidsu-handle-file-remote-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-remote-p))
(defalias 'tramp-androidsu-handle-file-selinux-context
(tramp-androidsu-generate-wrapper #'tramp-handle-file-selinux-context))
(defalias 'tramp-androidsu-handle-file-symlink-p
(tramp-androidsu-generate-wrapper #'tramp-handle-file-symlink-p))
(defalias 'tramp-androidsu-adb-handle-file-system-info
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-system-info))
(defalias 'tramp-androidsu-handle-file-truename
(tramp-androidsu-generate-wrapper #'tramp-handle-file-truename))
(defalias 'tramp-androidsu-handle-file-user-uid
(tramp-androidsu-generate-wrapper #'tramp-handle-file-user-uid))
(defalias 'tramp-androidsu-adb-handle-file-writable-p
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-file-writable-p))
(defalias 'tramp-androidsu-handle-find-backup-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-find-backup-file-name))
(defalias 'tramp-androidsu-handle-insert-directory
(tramp-androidsu-generate-wrapper #'tramp-handle-insert-directory))
(defalias 'tramp-androidsu-handle-insert-file-contents
(tramp-androidsu-generate-wrapper #'tramp-handle-insert-file-contents))
(defalias 'tramp-androidsu-handle-list-system-processes
(tramp-androidsu-generate-wrapper #'tramp-handle-list-system-processes))
(defalias 'tramp-androidsu-handle-load
(tramp-androidsu-generate-wrapper #'tramp-handle-load))
(defalias 'tramp-androidsu-handle-lock-file
(tramp-androidsu-generate-wrapper #'tramp-handle-lock-file))
(defalias 'tramp-androidsu-handle-make-auto-save-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-make-auto-save-file-name))
(defalias 'tramp-androidsu-adb-handle-make-directory
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-make-directory))
(defalias 'tramp-androidsu-handle-make-lock-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-make-lock-file-name))
(defalias 'tramp-androidsu-handle-make-nearby-temp-file
(tramp-androidsu-generate-wrapper #'tramp-handle-make-nearby-temp-file))
(defalias 'tramp-androidsu-adb-handle-make-process
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-make-process))
(defalias 'tramp-androidsu-sh-handle-make-symbolic-link
(tramp-androidsu-generate-wrapper
#'tramp-sh-handle-make-symbolic-link))
(defalias 'tramp-androidsu-handle-memory-info
(tramp-androidsu-generate-wrapper #'tramp-handle-memory-info))
(defalias 'tramp-androidsu-handle-process-attributes
(tramp-androidsu-generate-wrapper #'tramp-handle-process-attributes))
(defalias 'tramp-androidsu-adb-handle-process-file
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-process-file))
(defalias 'tramp-androidsu-adb-handle-rename-file
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-rename-file))
(defalias 'tramp-androidsu-adb-handle-set-file-modes
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-set-file-modes))
(defalias 'tramp-androidsu-adb-handle-set-file-times
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-set-file-times))
(defalias 'tramp-androidsu-handle-set-visited-file-modtime
(tramp-androidsu-generate-wrapper #'tramp-handle-set-visited-file-modtime))
(defalias 'tramp-androidsu-handle-shell-command
(tramp-androidsu-generate-wrapper #'tramp-handle-shell-command))
(defalias 'tramp-androidsu-handle-start-file-process
(tramp-androidsu-generate-wrapper #'tramp-handle-start-file-process))
(defalias 'tramp-androidsu-handle-substitute-in-file-name
(tramp-androidsu-generate-wrapper #'tramp-handle-substitute-in-file-name))
(defalias 'tramp-androidsu-handle-temporary-file-directory
(tramp-androidsu-generate-wrapper #'tramp-handle-temporary-file-directory))
(defalias 'tramp-androidsu-adb-handle-get-remote-gid
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-get-remote-gid))
(defalias 'tramp-androidsu-adb-handle-get-remote-groups
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-get-remote-groups))
(defalias 'tramp-androidsu-adb-handle-get-remote-uid
(tramp-androidsu-generate-wrapper #'tramp-adb-handle-get-remote-uid))
(defalias 'tramp-androidsu-handle-unlock-file
(tramp-androidsu-generate-wrapper #'tramp-handle-unlock-file))
(defalias 'tramp-androidsu-handle-verify-visited-file-modtime
(tramp-androidsu-generate-wrapper #'tramp-handle-verify-visited-file-modtime))
(defalias 'tramp-androidsu-handle-write-region
(tramp-androidsu-generate-wrapper #'tramp-handle-write-region))
;;;###tramp-autoload
(defconst tramp-androidsu-file-name-handler-alist
'(;; `abbreviate-file-name' performed by default handler.
(access-file . tramp-androidsu-handle-access-file)
(add-name-to-file . tramp-androidsu-handle-add-name-to-file)
;; `byte-compiler-base-file-name' performed by default handler.
(copy-directory . tramp-androidsu-handle-copy-directory)
(copy-file . tramp-androidsu-adb-handle-copy-file)
(delete-directory . tramp-androidsu-adb-handle-delete-directory)
(delete-file . tramp-androidsu-adb-handle-delete-file)
;; `diff-latest-backup-file' performed by default handler.
(directory-file-name . tramp-androidsu-handle-directory-file-name)
(directory-files . tramp-androidsu-handle-directory-files)
(directory-files-and-attributes
. tramp-androidsu-adb-handle-directory-files-and-attributes)
(dired-compress-file . ignore)
(dired-uncache . tramp-androidsu-handle-dired-uncache)
(exec-path . tramp-androidsu-adb-handle-exec-path)
(expand-file-name . tramp-androidsu-handle-expand-file-name)
(file-accessible-directory-p . tramp-androidsu-handle-file-accessible-directory-p)
(file-acl . ignore)
(file-attributes . tramp-androidsu-adb-handle-file-attributes)
(file-directory-p . tramp-androidsu-handle-file-directory-p)
(file-equal-p . tramp-androidsu-handle-file-equal-p)
(file-executable-p . tramp-androidsu-adb-handle-file-executable-p)
(file-exists-p . tramp-androidsu-adb-handle-file-exists-p)
(file-group-gid . tramp-androidsu-handle-file-group-gid)
(file-in-directory-p . tramp-androidsu-handle-file-in-directory-p)
(file-local-copy . tramp-androidsu-sh-handle-file-local-copy)
(file-locked-p . tramp-androidsu-handle-file-locked-p)
(file-modes . tramp-androidsu-handle-file-modes)
(file-name-all-completions . tramp-androidsu-adb-handle-file-name-all-completions)
(file-name-as-directory . tramp-androidsu-handle-file-name-as-directory)
(file-name-case-insensitive-p . tramp-androidsu-handle-file-name-case-insensitive-p)
(file-name-completion . tramp-androidsu-handle-file-name-completion)
(file-name-directory . tramp-androidsu-handle-file-name-directory)
(file-name-nondirectory . tramp-androidsu-handle-file-name-nondirectory)
;; `file-name-sans-versions' performed by default handler.
(file-newer-than-file-p . tramp-androidsu-handle-file-newer-than-file-p)
(file-notify-add-watch . tramp-androidsu-handle-file-notify-add-watch)
(file-notify-rm-watch . tramp-androidsu-handle-file-notify-rm-watch)
(file-notify-valid-p . tramp-androidsu-handle-file-notify-valid-p)
(file-ownership-preserved-p . ignore)
(file-readable-p . tramp-androidsu-adb-handle-file-readable-p)
(file-regular-p . tramp-androidsu-handle-file-regular-p)
(file-remote-p . tramp-androidsu-handle-file-remote-p)
(file-selinux-context . tramp-androidsu-handle-file-selinux-context)
(file-symlink-p . tramp-androidsu-handle-file-symlink-p)
(file-system-info . tramp-androidsu-adb-handle-file-system-info)
(file-truename . tramp-androidsu-handle-file-truename)
(file-user-uid . tramp-androidsu-handle-file-user-uid)
(file-writable-p . tramp-androidsu-adb-handle-file-writable-p)
(find-backup-file-name . tramp-androidsu-handle-find-backup-file-name)
;; `get-file-buffer' performed by default handler.
(insert-directory . tramp-androidsu-handle-insert-directory)
(insert-file-contents . tramp-androidsu-handle-insert-file-contents)
(list-system-processes . tramp-androidsu-handle-list-system-processes)
(load . tramp-androidsu-handle-load)
(lock-file . tramp-androidsu-handle-lock-file)
(make-auto-save-file-name . tramp-androidsu-handle-make-auto-save-file-name)
(make-directory . tramp-androidsu-adb-handle-make-directory)
(make-directory-internal . ignore)
(make-lock-file-name . tramp-androidsu-handle-make-lock-file-name)
(make-nearby-temp-file . tramp-androidsu-handle-make-nearby-temp-file)
(make-process . tramp-androidsu-adb-handle-make-process)
(make-symbolic-link . tramp-androidsu-sh-handle-make-symbolic-link)
(memory-info . tramp-androidsu-handle-memory-info)
(process-attributes . tramp-androidsu-handle-process-attributes)
(process-file . tramp-androidsu-adb-handle-process-file)
(rename-file . tramp-androidsu-adb-handle-rename-file)
(set-file-acl . ignore)
(set-file-modes . tramp-androidsu-adb-handle-set-file-modes)
(set-file-selinux-context . ignore)
(set-file-times . tramp-androidsu-adb-handle-set-file-times)
(set-visited-file-modtime . tramp-androidsu-handle-set-visited-file-modtime)
(shell-command . tramp-androidsu-handle-shell-command)
(start-file-process . tramp-androidsu-handle-start-file-process)
(substitute-in-file-name . tramp-androidsu-handle-substitute-in-file-name)
(temporary-file-directory . tramp-androidsu-handle-temporary-file-directory)
(tramp-get-home-directory . ignore)
(tramp-get-remote-gid . tramp-androidsu-adb-handle-get-remote-gid)
(tramp-get-remote-groups . tramp-androidsu-adb-handle-get-remote-groups)
(tramp-get-remote-uid . tramp-androidsu-adb-handle-get-remote-uid)
(tramp-set-file-uid-gid . ignore)
(unhandled-file-name-directory . ignore)
(unlock-file . tramp-androidsu-handle-unlock-file)
(vc-registered . ignore)
(verify-visited-file-modtime . tramp-androidsu-handle-verify-visited-file-modtime)
(write-region . tramp-androidsu-handle-write-region))
"Alist of TRAMP handler functions for superuser sessions on Android.")
;; It must be a `defsubst' in order to push the whole code into
;; tramp-loaddefs.el. Otherwise, there would be recursive autoloading.
;;;###tramp-autoload
(defsubst tramp-androidsu-file-name-p (vec-or-filename)
"Check whether VEC-OR-FILENAME is for the `androidsu' method."
(when-let* ((vec (tramp-ensure-dissected-file-name vec-or-filename)))
(equal (tramp-file-name-method vec) tramp-androidsu-method)))
;;;###tramp-autoload
(defun tramp-androidsu-file-name-handler (operation &rest args)
"Invoke the `androidsu' handler for OPERATION.
First arg specifies the OPERATION, second arg is a list of
arguments to pass to the OPERATION."
(if-let ((fn (assoc operation tramp-androidsu-file-name-handler-alist)))
(prog1 (save-match-data (apply (cdr fn) args))
(setq tramp-debug-message-fnh-function (cdr fn)))
(prog1 (tramp-run-real-handler operation args)
(setq tramp-debug-message-fnh-function operation))))
;;;###tramp-autoload
(tramp--with-startup
(tramp-register-foreign-file-name-handler
#'tramp-androidsu-file-name-p #'tramp-androidsu-file-name-handler))
(connection-local-set-profile-variables
'tramp-adb-connection-local-default-ps-profile
tramp-adb-connection-local-default-ps-variables)
(with-eval-after-load 'shell
(connection-local-set-profiles
`(:application tramp :protocol ,tramp-adb-method)
'tramp-adb-connection-local-default-shell-profile
'tramp-adb-connection-local-default-ps-profile))
(add-hook 'tramp-unload-hook
(lambda ()
(unload-feature 'tramp-androidsu 'force)))
(provide 'tramp-androidsu)
;;; tramp-androidsu.el ends here