gnu/packages/ssh.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
   3 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
   4 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
   5 ;;; Copyright © 2015, 2016 Efraim Flashner <efraim@flashner.co.il>
   6 ;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
   7 ;;; Copyright © 2016 Nicolas Goaziou <mail@nicolasgoaziou.fr>
   8 ;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
   9 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
  10 ;;; Copyright © 2017 Stefan Reichör <stefan@xsteve.at>
  11 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
  12 ;;;
  13 ;;; This file is part of GNU Guix.
  14 ;;;
  15 ;;; GNU Guix is free software; you can redistribute it and/or modify it
  16 ;;; under the terms of the GNU General Public License as published by
  17 ;;; the Free Software Foundation; either version 3 of the License, or (at
  18 ;;; your option) any later version.
  19 ;;;
  20 ;;; GNU Guix is distributed in the hope that it will be useful, but
  21 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  22 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 ;;; GNU General Public License for more details.
  24 ;;;
  25 ;;; You should have received a copy of the GNU General Public License
  26 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  27
  28 (define-module (gnu packages ssh)
  29   #:use-module (gnu packages)
  30   #:use-module (gnu packages autotools)
  31   #:use-module (gnu packages base)
  32   #:autoload   (gnu packages boost) (boost)
  33   #:use-module (gnu packages compression)
  34   #:use-module (gnu packages crypto)
  35   #:use-module (gnu packages elf)
  36   #:use-module (gnu packages gnupg)
  37   #:use-module (gnu packages gperf)
  38   #:use-module (gnu packages groff)
  39   #:use-module (gnu packages guile)
  40   #:use-module (gnu packages linux)
  41   #:use-module (gnu packages logging)
  42   #:use-module (gnu packages m4)
  43   #:use-module (gnu packages multiprecision)
  44   #:use-module (gnu packages ncurses)
  45   #:use-module (gnu packages nettle)
  46   #:use-module (gnu packages kerberos)
  47   #:use-module (gnu packages perl)
  48   #:use-module (gnu packages pkg-config)
  49   #:use-module (gnu packages popt)
  50   #:autoload   (gnu packages protobuf) (protobuf)
  51   #:use-module (gnu packages readline)
  52   #:use-module (gnu packages texinfo)
  53   #:use-module (gnu packages tls)
  54   #:use-module (gnu packages xorg)
  55   #:use-module (guix build-system cmake)
  56   #:use-module (guix build-system gnu)
  57   #:use-module (guix download)
  58   #:use-module (guix git-download)
  59   #:use-module ((guix licenses) #:prefix license:)
  60   #:use-module (guix packages)
  61   #:use-module (srfi srfi-1))
  62
  63 (define-public libssh
  64   (package
  65     (name "libssh")
  66     (version "0.7.5")
  67     (source (origin
  68               (method url-fetch)
  69               (uri (string-append
  70                     "https://red.libssh.org/attachments/download/218/libssh-"
  71                     version ".tar.xz"))
  72               (sha256
  73                (base32
  74                 "15bh6dm9c50ndddzh3gqcgw7axp3ghrspjpkb1z3dr90vkanvs2l"))
  75               (patches (search-patches "libssh-hostname-parser-bug.patch"))))
  76     (build-system cmake-build-system)
  77     (outputs '("out" "debug"))
  78     (arguments
  79      '(#:configure-flags '("-DWITH_GCRYPT=ON")
  80
  81        ;; TODO: Add 'CMockery' and '-DWITH_TESTING=ON' for the test suite.
  82        #:tests? #f))
  83     (inputs `(("zlib" ,zlib)
  84               ("libgcrypt" ,libgcrypt)))
  85     (synopsis "SSH client library")
  86     (description
  87      "libssh is a C library implementing the SSHv2 and SSHv1 protocol for
  88 client and server implementations.  With libssh, you can remotely execute
  89 programs, transfer files, and use a secure and transparent tunnel for your
  90 remote applications.")
  91     (home-page "https://www.libssh.org")
  92     (license license:lgpl2.1+)))
  93
  94 (define-public libssh2
  95   (package
  96    (name "libssh2")
  97    (version "1.8.0")
  98    (source (origin
  99             (method url-fetch)
 100             (uri (string-append
 101                    "https://www.libssh2.org/download/libssh2-"
 102                    version ".tar.gz"))
 103             (sha256
 104              (base32
 105               "1m3n8spv79qhjq4yi0wgly5s5rc8783jb1pyra9bkx1md0plxwrr"))
 106             (patches
 107              (search-patches "libssh2-fix-build-failure-with-gcrypt.patch"))))
 108    (build-system gnu-build-system)
 109    ;; The installed libssh2.pc file does not include paths to libgcrypt and
 110    ;; zlib libraries, so we need to propagate the inputs.
 111    (propagated-inputs `(("libgcrypt" ,libgcrypt)
 112                         ("zlib" ,zlib)))
 113    (arguments '(#:configure-flags `("--with-libgcrypt")
 114                 #:phases (modify-phases %standard-phases
 115                            (add-before 'configure 'autoreconf
 116                              (lambda _
 117                                (zero? (system* "autoreconf" "-v")))))))
 118    (native-inputs `(("autoconf" ,autoconf)
 119                     ("automake" ,automake)))
 120    (synopsis "Client-side C library implementing the SSH2 protocol")
 121    (description
 122     "libssh2 is a library intended to allow software developers access to
 123 the SSH-2 protocol in an easy-to-use self-contained package.  It can be built
 124 into an application to perform many different tasks when communicating with
 125 a server that supports the SSH-2 protocol.")
 126    (license license:bsd-3)
 127    (home-page "http://www.libssh2.org/")))
 128
 129 (define-public openssh
 130   (package
 131    (name "openssh")
 132    (version "7.6p1")
 133    (source (origin
 134              (method url-fetch)
 135              (uri (string-append "mirror://openbsd/OpenSSH/portable/"
 136                                  name "-" version ".tar.gz"))
 137              (sha256
 138               (base32
 139                "08qpsb8mrzcx8wgvz9insiyvq7sbg26yj5nvl2m5n57yvppcl8x3"))))
 140    (build-system gnu-build-system)
 141    (native-inputs `(("groff" ,groff)))
 142    (inputs `(("openssl" ,openssl)
 143              ("pam" ,linux-pam)
 144              ("mit-krb5" ,mit-krb5)
 145              ("zlib" ,zlib)
 146              ("xauth" ,xauth)))                   ;for 'ssh -X' and 'ssh -Y'
 147    (arguments
 148     `(#:test-target "tests"
 149       #:configure-flags  `("--sysconfdir=/etc/ssh"
 150
 151                            ;; Default value of 'PATH' used by sshd.
 152                           "--with-default-path=/run/current-system/profile/bin"
 153
 154                           ;; configure needs to find krb5-config
 155                           ,(string-append "--with-kerberos5="
 156                                           (assoc-ref %build-inputs "mit-krb5")
 157                                           "/bin")
 158
 159                           ;; Enable PAM support in sshd.
 160                           "--with-pam")
 161
 162       #:phases
 163       (modify-phases %standard-phases
 164         (add-after 'configure 'reset-/var/empty
 165          (lambda* (#:key outputs #:allow-other-keys)
 166            (let ((out (assoc-ref outputs "out")))
 167              (substitute* "Makefile"
 168                (("PRIVSEP_PATH=/var/empty")
 169                 (string-append "PRIVSEP_PATH=" out "/var/empty")))
 170              #t)))
 171         (add-before 'check 'patch-tests
 172          (lambda _
 173            ;; remove 't-exec' regress target which requires user 'sshd'
 174            (substitute* "regress/Makefile"
 175              (("^(REGRESS_TARGETS=.*) t-exec(.*)" all pre post)
 176               (string-append pre post)))
 177            #t))
 178         (replace 'install
 179          (lambda* (#:key outputs (make-flags '()) #:allow-other-keys)
 180            ;; install without host keys and system configuration files
 181            (and (zero? (apply system* "make" "install-nosysconf" make-flags))
 182                 (begin
 183                   (install-file "contrib/ssh-copy-id"
 184                                 (string-append (assoc-ref outputs "out")
 185                                                "/bin/"))
 186                   (chmod (string-append (assoc-ref outputs "out")
 187                                         "/bin/ssh-copy-id") #o555)
 188                   (install-file "contrib/ssh-copy-id.1"
 189                                 (string-append (assoc-ref outputs "out")
 190                                                "/share/man/man1/"))
 191                   #t)))))))
 192    (synopsis "Client and server for the secure shell (ssh) protocol")
 193    (description
 194     "The SSH2 protocol implemented in OpenSSH is standardised by the
 195 IETF secsh working group and is specified in several RFCs and drafts.
 196 It is composed of three layered components:
 197
 198 The transport layer provides algorithm negotiation and a key exchange.
 199 The key exchange includes server authentication and results in a
 200 cryptographically secured connection: it provides integrity, confidentiality
 201 and optional compression.
 202
 203 The user authentication layer uses the established connection and relies on
 204 the services provided by the transport layer.  It provides several mechanisms
 205 for user authentication.  These include traditional password authentication
 206 as well as public-key or host-based authentication mechanisms.
 207
 208 The connection layer multiplexes many different concurrent channels over the
 209 authenticated connection and allows tunneling of login sessions and
 210 TCP-forwarding.  It provides a flow control service for these channels.
 211 Additionally, various channel-specific options can be negotiated.")
 212    (license (license:non-copyleft "file://LICENSE"
 213                                "See LICENSE in the distribution."))
 214    (home-page "http://www.openssh.org/")))
 215
 216 (define-public guile-ssh
 217   (package
 218     (name "guile-ssh")
 219     (version "0.11.2")
 220     (home-page "https://github.com/artyom-poptsov/guile-ssh")
 221     (source (origin
 222               ;; ftp://memory-heap.org/software/guile-ssh/guile-ssh-VERSION.tar.gz
 223               ;; exists, but the server appears to be too slow and unreliable.
 224               ;; Also, using this URL allows the GitHub updater to work.
 225               (method url-fetch)
 226               (uri (string-append home-page "/archive/v"
 227                                   version ".tar.gz"))
 228               (file-name (string-append name "-" version ".tar.gz"))
 229               (sha256
 230                (base32
 231                 "1w0k5s09xj5xycb7lbp5b7rm0xncclms3jwl98lwj8fxwngi1s90"))))
 232     (build-system gnu-build-system)
 233     (outputs '("out" "debug"))
 234     (arguments
 235      '(#:phases (modify-phases %standard-phases
 236                   (add-after 'unpack 'autoreconf
 237                     (lambda* (#:key inputs #:allow-other-keys)
 238                       (zero? (system* "autoreconf" "-vfi"))))
 239                   (add-before 'build 'fix-libguile-ssh-file-name
 240                     (lambda* (#:key outputs #:allow-other-keys)
 241                       ;; Build and install libguile-ssh.so so that we can use
 242                       ;; its absolute file name in .scm files, before we build
 243                       ;; the .go files.
 244                       (and (zero? (system* "make" "install"
 245                                            "-C" "libguile-ssh"
 246                                            "-j" (number->string
 247                                                  (parallel-job-count))))
 248                            (let* ((out      (assoc-ref outputs "out"))
 249                                   (libdir   (string-append out "/lib")))
 250                              (substitute* (find-files "." "\\.scm$")
 251                                (("\"libguile-ssh\"")
 252                                 (string-append "\"" libdir "/libguile-ssh\"")))
 253                              #t)))))
 254
 255        ;; Tests are not parallel-safe.
 256        #:parallel-tests? #f))
 257     (native-inputs `(("autoconf" ,autoconf)
 258                      ("automake" ,automake)
 259                      ("libtool" ,libtool)
 260                      ("texinfo" ,texinfo)
 261                      ("pkg-config" ,pkg-config)
 262                      ("which" ,which)))
 263     (inputs `(("guile" ,guile-2.2)
 264               ("libssh" ,libssh)
 265               ("libgcrypt" ,libgcrypt)))
 266     (synopsis "Guile bindings to libssh")
 267     (description
 268      "Guile-SSH is a library that provides access to the SSH protocol for
 269 programs written in GNU Guile interpreter.  It is a wrapper to the underlying
 270 libssh library.")
 271     (license license:gpl3+)))
 272
 273 (define-public guile2.2-ssh
 274   (deprecated-package "guile2.2-ssh" guile-ssh))
 275
 276 (define-public guile2.0-ssh
 277   (package
 278     (inherit guile-ssh)
 279     (name "guile2.0-ssh")
 280     (inputs `(("guile" ,guile-2.0)
 281               ,@(alist-delete "guile" (package-inputs guile-ssh))))))
 282
 283 (define-public corkscrew
 284   (package
 285     (name "corkscrew")
 286     (version "2.0")
 287     (source
 288      (origin
 289        (method url-fetch)
 290        ;; The agroman.net domain name expired on 2017-03-23, and the original
 291        ;; "http://www.agroman.net/corkscrew/corkscrew-2.0.tar.gz" now returns
 292        ;; bogus HTML.  Perhaps it will yet return.  Until then, use a mirror.
 293        (uri (string-append "https://downloads.openwrt.org/sources/"
 294                            "corkscrew-" version ".tar.gz"))
 295        (sha256 (base32
 296                 "1gmhas4va6gd70i2x2mpxpwpgww6413mji29mg282jms3jscn3qd"))))
 297     (build-system gnu-build-system)
 298     (arguments
 299      ;; Replace configure phase as the ./configure script does not link
 300      ;; CONFIG_SHELL and SHELL passed as parameters
 301      '(#:phases
 302        (modify-phases %standard-phases
 303          (replace 'configure
 304            (lambda* (#:key outputs inputs system build target
 305                            #:allow-other-keys #:rest args)
 306              (let* ((configure (assoc-ref %standard-phases 'configure))
 307                     (prefix (assoc-ref outputs "out"))
 308                     (bash   (which "bash"))
 309                     ;; Set --build and --host flags as the provided config.guess
 310                     ;; is not able to detect them
 311                     (flags `(,(string-append "--prefix=" prefix)
 312                              ,(string-append "--build=" build)
 313                              ,(string-append "--host=" (or target build)))))
 314                (setenv "CONFIG_SHELL" bash)
 315                (zero? (apply system* bash
 316                              (string-append "." "/configure")
 317                              flags)))))
 318          (add-after 'install 'install-documentation
 319            (lambda* (#:key outputs #:allow-other-keys)
 320              (let* ((out (assoc-ref outputs "out"))
 321                     (doc (string-append out "/share/doc/corkscrew")))
 322                (install-file "README" doc)
 323                #t))))))
 324     (home-page "http://www.agroman.net/corkscrew")
 325     (synopsis "SSH tunneling through HTTP(S) proxies")
 326     (description
 327      "Corkscrew tunnels SSH connections through most HTTP and HTTPS proxies.
 328 Proxy authentication is only supported through the plain-text HTTP basic
 329 authentication scheme.")
 330     (license license:gpl2+)))
 331
 332 (define-public mosh
 333   (package
 334     (name "mosh")
 335     (version "1.3.2")
 336     (source (origin
 337               (method url-fetch)
 338               (uri (string-append "https://mosh.org/mosh-" version ".tar.gz"))
 339               (sha256
 340                (base32
 341                 "05hjhlp6lk8yjcy59zywpf0r6s0h0b9zxq0lw66dh9x8vxrhaq6s"))))
 342     (build-system gnu-build-system)
 343     (arguments
 344      '(#:phases
 345        (modify-phases %standard-phases
 346          (add-after 'install 'wrap
 347            (lambda* (#:key outputs #:allow-other-keys)
 348              ;; Make sure 'mosh' can find 'mosh-client' and
 349              ;; 'mosh-server'.
 350              (let* ((out (assoc-ref outputs "out"))
 351                     (bin (string-append out "/bin")))
 352                (wrap-program (string-append bin "/mosh")
 353                              `("PATH" ":" prefix (,bin)))))))))
 354     (native-inputs
 355      `(("pkg-config" ,pkg-config)))
 356     (inputs
 357      `(("openssl" ,openssl)
 358        ("perl" ,perl)
 359        ("perl-io-tty" ,perl-io-tty)
 360        ("zlib" ,zlib)
 361        ("ncurses" ,ncurses)
 362        ("protobuf" ,protobuf)
 363        ("boost-headers" ,boost)))
 364     (home-page "https://mosh.org/")
 365     (synopsis "Remote shell tolerant to intermittent connectivity")
 366     (description
 367      "Remote terminal application that allows roaming, supports intermittent
 368 connectivity, and provides intelligent local echo and line editing of user
 369 keystrokes.  Mosh is a replacement for SSH.  It's more robust and responsive,
 370 especially over Wi-Fi, cellular, and long-distance links.")
 371     (license license:gpl3+)))
 372
 373 (define-public et
 374   (package
 375     (name "et")
 376     (version "3.1.0")
 377     (source
 378      (origin
 379        (method url-fetch)
 380        (uri (string-append
 381              "https://github.com/MisterTea/EternalTCP/archive/et-v"
 382              version ".tar.gz"))
 383        (sha256
 384         (base32 "1n2w2kqbshdmbb0gz4yizyw9gqfls6qm2dnwx1d9c2hz7hmi7521"))))
 385     (build-system cmake-build-system)
 386     (arguments `(#:tests? #f))
 387     (native-inputs
 388      `(("pkg-config" ,pkg-config)))
 389     (inputs `(("glog" ,glog)
 390               ("gflags" ,gflags)
 391               ("libsodium" ,libsodium)
 392               ("protobuf" ,protobuf)))
 393     (synopsis "Remote shell that automatically reconnects")
 394     (description
 395      "Eternal Terminal (ET) is a remote shell that automatically reconnects
 396 without interrupting the session.  Unlike SSH sessions, ET sessions will
 397 survive even network outages and IP changes.  ET uses a custom protocol over
 398 TCP, not the SSH protocol.")
 399     (home-page "https://mistertea.github.io/EternalTCP/")
 400     (license license:asl2.0)))
 401
 402 (define-public dropbear
 403   (package
 404     (name "dropbear")
 405     (version "2017.75")
 406     (source (origin
 407               (method url-fetch)
 408               (uri (string-append
 409                     "https://matt.ucc.asn.au/" name "/releases/"
 410                     name "-" version ".tar.bz2"))
 411               (sha256
 412                (base32
 413                 "1309cm2aw62n9m3h38prvgsqr8bj85hfasgnvwkd42cp3k5ivg3c"))))
 414     (build-system gnu-build-system)
 415     (arguments  `(#:tests? #f)) ; There is no "make check" or anything similar
 416     (inputs `(("zlib" ,zlib)))
 417     (synopsis "Small SSH server and client")
 418     (description "Dropbear is a relatively small SSH server and
 419 client.  It runs on a variety of POSIX-based platforms.  Dropbear is
 420 particularly useful for embedded systems, such as wireless routers.")
 421     (home-page "https://matt.ucc.asn.au/dropbear/dropbear.html")
 422     (license (license:x11-style "" "See file LICENSE."))))
 423
 424 (define-public liboop
 425   (package
 426     (name "liboop")
 427     (version "1.0")
 428     (source
 429      (origin
 430       (method url-fetch)
 431       (uri (string-append "http://download.ofb.net/liboop/liboop-"
 432                           version ".tar.gz"))
 433       (sha256
 434        (base32
 435         "0z6rlalhvfca64jpvksppc9bdhs7jwhiw4y35g5ibvh91xp3rn1l"))
 436       (patches (search-patches "liboop-mips64-deplibs-fix.patch"))))
 437     (build-system gnu-build-system)
 438     (home-page "http://www.lysator.liu.se/liboop/")
 439     (synopsis "Event loop library")
 440     (description "Liboop is a low-level event loop management library for
 441 POSIX-based operating systems.  It supports the development of modular,
 442 multiplexed applications which may respond to events from several sources.  It
 443 replaces the \"select() loop\" and allows the registration of event handlers
 444 for file and network I/O, timers and signals.  Since processes use these
 445 mechanisms for almost all external communication, liboop can be used as the
 446 basis for almost any application.")
 447     (license license:lgpl2.1+)))
 448
 449 (define-public lsh
 450   (package
 451     (name "lsh")
 452     (version "2.1")
 453     (source (origin
 454               (method url-fetch)
 455               (uri (string-append "mirror://gnu/lsh/lsh-"
 456                                   version ".tar.gz"))
 457               (sha256
 458                (base32
 459                 "1qqjy9zfzgny0rkb27c8c7dfsylvb6n0ld8h3an2r83pmaqr9gwb"))
 460               (modules '((guix build utils)))
 461               (snippet
 462                '(begin
 463                   (substitute* "src/testsuite/functions.sh"
 464                     (("localhost")
 465                      ;; Avoid host name lookups since they don't work in
 466                      ;; chroot builds.
 467                      "127.0.0.1")
 468                     (("set -e")
 469                      ;; Make tests more verbose.
 470                      "set -e\nset -x"))
 471
 472                   (substitute* (find-files "src/testsuite" "-test$")
 473                     (("localhost") "127.0.0.1"))
 474
 475                   (substitute* "src/testsuite/login-auth-test"
 476                     (("/bin/cat") "cat"))))))
 477     (build-system gnu-build-system)
 478     (native-inputs
 479      `(("m4" ,m4)
 480        ("guile" ,guile-2.0)
 481        ("gperf" ,gperf)
 482        ("psmisc" ,psmisc)))                       ; for `killall'
 483     (inputs
 484      `(("nettle" ,nettle-2)
 485        ("linux-pam" ,linux-pam)
 486
 487        ;; 'rl.c' uses the 'CPPFunction' type, which is no longer in
 488        ;; Readline 6.3.
 489        ("readline" ,readline-6.2)
 490
 491        ("liboop" ,liboop)
 492        ("zlib" ,zlib)
 493        ("gmp" ,gmp)
 494
 495        ;; The server (lshd) invokes xauth when X11 forwarding is requested.
 496        ;; This adds 24 MiB (or 27%) to the closure of lsh.
 497        ("xauth" ,xauth)))
 498     (arguments
 499      '(;; Skip the `configure' test that checks whether /dev/ptmx &
 500        ;; co. work as expected, because it relies on impurities (for
 501        ;; instance, /dev/pts may be unavailable in chroots.)
 502        #:configure-flags '("lsh_cv_sys_unix98_ptys=yes"
 503
 504                            ;; Use glibc's argp rather than the bundled one.
 505                            "--with-system-argp"
 506
 507                            ;; 'lsh_argp.h' checks HAVE_ARGP_PARSE but nothing
 508                            ;; defines it.
 509                            "CPPFLAGS=-DHAVE_ARGP_PARSE")
 510
 511        ;; FIXME: Tests won't run in a chroot, presumably because
 512        ;; /etc/profile is missing, and thus clients get an empty $PATH
 513        ;; and nothing works.
 514        #:tests? #f
 515
 516        #:phases
 517        (modify-phases %standard-phases
 518          (add-before 'configure 'pre-configure
 519            (lambda* (#:key inputs #:allow-other-keys)
 520              (let* ((nettle    (assoc-ref inputs "nettle"))
 521                     (sexp-conv (string-append nettle "/bin/sexp-conv")))
 522                ;; Remove argp from the list of sub-directories; we don't want
 523                ;; to build it, really.
 524                (substitute* "src/Makefile.in"
 525                  (("^SUBDIRS = argp")
 526                   "SUBDIRS ="))
 527
 528                ;; Make sure 'lsh' and 'lshd' pick 'sexp-conv' in the right place
 529                ;; by default.
 530                (substitute* "src/environ.h.in"
 531                  (("^#define PATH_SEXP_CONV.*")
 532                   (string-append "#define PATH_SEXP_CONV \""
 533                                  sexp-conv "\"\n")))
 534
 535                ;; Same for the 'lsh-authorize' script.
 536                (substitute* "src/lsh-authorize"
 537                  (("=sexp-conv")
 538                   (string-append "=" sexp-conv)))
 539
 540                ;; Tell lshd where 'xauth' lives.  Another option would be to
 541                ;; hardcode "/run/current-system/profile/bin/xauth", thereby
 542                ;; reducing the closure size, but that wouldn't work on foreign
 543                ;; distros.
 544                (with-fluids ((%default-port-encoding "ISO-8859-1"))
 545                  (substitute* "src/server_x11.c"
 546                    (("define XAUTH_PROGRAM.*")
 547                     (string-append "define XAUTH_PROGRAM \""
 548                                    (assoc-ref inputs "xauth")
 549                                    "/bin/xauth\"\n")))))
 550
 551              ;; Tests rely on $USER being set.
 552              (setenv "USER" "guix"))))))
 553     (home-page "http://www.lysator.liu.se/~nisse/lsh/")
 554     (synopsis "GNU implementation of the Secure Shell (ssh) protocols")
 555     (description
 556      "GNU lsh is a free implementation of the SSH version 2 protocol.  It is
 557 used to create a secure line of communication between two computers,
 558 providing shell access to the server system from the client.  It provides
 559 both the server daemon and the client application, as well as tools for
 560 manipulating key files.")
 561     (license license:gpl2+)))
 562
 563 (define-public sshpass
 564   (package
 565     (name "sshpass")
 566     (version "1.06")
 567     (synopsis "Non-interactive password authentication with SSH")
 568     (home-page "https://sourceforge.net/projects/sshpass/")
 569     (source
 570      (origin
 571        (method url-fetch)
 572        (uri (string-append "mirror://sourceforge/sshpass/sshpass/"
 573                            version "/sshpass-" version ".tar.gz"))
 574        (sha256
 575         (base32
 576          "0q7fblaczb7kwbsz0gdy9267z0sllzgmf0c7z5c9mf88wv74ycn6"))))
 577     (build-system gnu-build-system)
 578     (description "sshpass is a tool for non-interactivly performing password
 579 authentication with SSH's so-called @dfn{interactive keyboard password
 580 authentication}.")
 581     (license license:gpl2+)))
 582
 583 (define-public autossh
 584   (package
 585     (name "autossh")
 586     (version "1.4e")
 587     (source
 588      (origin
 589        (method url-fetch)
 590        (uri (string-append
 591              "http://www.harding.motd.ca/autossh/autossh-"
 592              version ".tgz"))
 593        (sha256
 594         (base32 "0mlicw28vq2jxa0jf0dys5ja75v0fxpjavlq9dpif6bnknji13ly"))))
 595     (build-system gnu-build-system)
 596     (arguments `(#:tests? #f)) ; There is no "make check" or anything similar
 597     (inputs `(("openssh" ,openssh)))
 598     (synopsis "Automatically restart SSH sessions and tunnels")
 599     (description "autossh is a program to start a copy of @command{ssh} and
 600 monitor it, restarting it as necessary should it die or stop passing traffic.")
 601     (home-page "http://www.harding.motd.ca/autossh/")
 602     (license
 603      ;; Why point to a source file?  Well, all the individual files have a
 604      ;; copy of this license in their headers, but there's no separate file
 605      ;; with that information.
 606      (license:non-copyleft "file://autossh.c"))))
 607
 608 (define-public pdsh
 609   (package
 610     (name "pdsh")
 611     (version "2.29")
 612     (source
 613      (origin
 614        (method url-fetch)
 615        (uri (string-append "https://storage.googleapis.com/"
 616                            "google-code-archive-downloads/v2/code.google.com/"
 617                            "pdsh/pdsh-" version ".tar.bz2"))
 618        (sha256
 619         (base32 "1kvzz01fyaxfqmbh53f4ljfsgvxdykh5jyr6fh4f1bw2ywxr1w2p"))))
 620     (build-system gnu-build-system)
 621     (arguments
 622      `(#:configure-flags
 623        (list "--with-ssh")
 624        #:phases
 625        (modify-phases %standard-phases
 626          (add-after 'unpack 'patch-/bin/sh
 627            (lambda _
 628              (substitute* '("tests/runtests.sh"
 629                             "tests/test-lib.sh"
 630                             "tests/test-modules/pcptest.c")
 631                (("/bin/sh") (which "bash")))
 632              #t)))))
 633     (inputs
 634      `(("openssh" ,openssh)
 635        ("mit-krb5" ,mit-krb5)
 636        ("perl" ,perl)))
 637     (home-page "https://code.google.com/archive/p/pdsh")
 638     (synopsis "Parallel distributed shell")
 639     (description "Pdsh is a an efficient, multithreaded remote shell client
 640 which executes commands on multiple remote hosts in parallel.  Pdsh implements
 641 dynamically loadable modules for extended functionality such as new remote
 642 shell services and remote host selection.")
 643     (license license:gpl2+)))