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 ;;;
  12 ;;; This file is part of GNU Guix.
  13 ;;;
  14 ;;; GNU Guix is free software; you can redistribute it and/or modify it
  15 ;;; under the terms of the GNU General Public License as published by
  16 ;;; the Free Software Foundation; either version 3 of the License, or (at
  17 ;;; your option) any later version.
  18 ;;;
  19 ;;; GNU Guix is distributed in the hope that it will be useful, but
  20 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;;; GNU General Public License for more details.
  23 ;;;
  24 ;;; You should have received a copy of the GNU General Public License
  25 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  26
  27 (define-module (gnu packages ssh)
  28   #:use-module (gnu packages)
  29   #:use-module (gnu packages autotools)
  30   #:use-module (gnu packages base)
  31   #:autoload   (gnu packages boost) (boost)
  32   #:use-module (gnu packages compression)
  33   #:use-module (gnu packages crypto)
  34   #:use-module (gnu packages elf)
  35   #:use-module (gnu packages gnupg)
  36   #:use-module (gnu packages gperf)
  37   #:use-module (gnu packages groff)
  38   #:use-module (gnu packages guile)
  39   #:use-module (gnu packages linux)
  40   #:use-module (gnu packages logging)
  41   #:use-module (gnu packages m4)
  42   #:use-module (gnu packages multiprecision)
  43   #:use-module (gnu packages ncurses)
  44   #:use-module (gnu packages nettle)
  45   #:use-module (gnu packages kerberos)
  46   #:use-module (gnu packages perl)
  47   #:use-module (gnu packages pkg-config)
  48   #:use-module (gnu packages popt)
  49   #:autoload   (gnu packages protobuf) (protobuf)
  50   #:use-module (gnu packages readline)
  51   #:use-module (gnu packages texinfo)
  52   #:use-module (gnu packages tls)
  53   #:use-module (gnu packages xorg)
  54   #:use-module (guix build-system cmake)
  55   #:use-module (guix build-system gnu)
  56   #:use-module (guix download)
  57   #:use-module (guix git-download)
  58   #:use-module ((guix licenses) #:prefix license:)
  59   #:use-module (guix packages)
  60   #:use-module (srfi srfi-1))
  61
  62 (define-public libssh
  63   (package
  64     (name "libssh")
  65     (version "0.7.5")
  66     (source (origin
  67               (method url-fetch)
  68               (uri (string-append
  69                     "https://red.libssh.org/attachments/download/218/libssh-"
  70                     version ".tar.xz"))
  71               (sha256
  72                (base32
  73                 "15bh6dm9c50ndddzh3gqcgw7axp3ghrspjpkb1z3dr90vkanvs2l"))
  74               (patches (search-patches "libssh-hostname-parser-bug.patch"))))
  75     (build-system cmake-build-system)
  76     (outputs '("out" "debug"))
  77     (arguments
  78      '(#:configure-flags '("-DWITH_GCRYPT=ON")
  79
  80        ;; TODO: Add 'CMockery' and '-DWITH_TESTING=ON' for the test suite.
  81        #:tests? #f))
  82     (inputs `(("zlib" ,zlib)
  83               ("libgcrypt" ,libgcrypt)))
  84     (synopsis "SSH client library")
  85     (description
  86      "libssh is a C library implementing the SSHv2 and SSHv1 protocol for
  87 client and server implementations.  With libssh, you can remotely execute
  88 programs, transfer files, and use a secure and transparent tunnel for your
  89 remote applications.")
  90     (home-page "https://www.libssh.org")
  91     (license license:lgpl2.1+)))
  92
  93 (define-public libssh2
  94   (package
  95    (name "libssh2")
  96    (version "1.8.0")
  97    (source (origin
  98             (method url-fetch)
  99             (uri (string-append
 100                    "https://www.libssh2.org/download/libssh2-"
 101                    version ".tar.gz"))
 102             (sha256
 103              (base32
 104               "1m3n8spv79qhjq4yi0wgly5s5rc8783jb1pyra9bkx1md0plxwrr"))
 105             (patches
 106              (search-patches "libssh2-fix-build-failure-with-gcrypt.patch"))))
 107    (build-system gnu-build-system)
 108    ;; The installed libssh2.pc file does not include paths to libgcrypt and
 109    ;; zlib libraries, so we need to propagate the inputs.
 110    (propagated-inputs `(("libgcrypt" ,libgcrypt)
 111                         ("zlib" ,zlib)))
 112    (arguments '(#:configure-flags `("--with-libgcrypt")
 113                 #:phases (modify-phases %standard-phases
 114                            (add-before 'configure 'autoreconf
 115                              (lambda _
 116                                (zero? (system* "autoreconf" "-v")))))))
 117    (native-inputs `(("autoconf" ,autoconf)
 118                     ("automake" ,automake)))
 119    (synopsis "Client-side C library implementing the SSH2 protocol")
 120    (description
 121     "libssh2 is a library intended to allow software developers access to
 122 the SSH-2 protocol in an easy-to-use self-contained package.  It can be built
 123 into an application to perform many different tasks when communicating with
 124 a server that supports the SSH-2 protocol.")
 125    (license license:bsd-3)
 126    (home-page "http://www.libssh2.org/")))
 127
 128 (define-public openssh
 129   (package
 130    (name "openssh")
 131    (version "7.5p1")
 132    (source (origin
 133             (method url-fetch)
 134             (uri (let ((tail (string-append name "-" version ".tar.gz")))
 135                    (list (string-append "http://openbsd.cs.fau.de/pub/OpenBSD/OpenSSH/portable/"
 136                                         tail)
 137                          (string-append "http://ftp.fr.openbsd.org/pub/OpenBSD/OpenSSH/portable/"
 138                                         tail)
 139                          (string-append "http://ftp2.fr.openbsd.org/pub/OpenBSD/OpenSSH/portable/"
 140                                         tail))))
 141             (sha256 (base32
 142                      "1w7rb5gbrikxdkp8w7zxnci4549gk4bw1lml01s59w5rzb2y6ilq"))))
 143    (build-system gnu-build-system)
 144    (native-inputs `(("groff" ,groff)))
 145    (inputs `(("openssl" ,openssl)
 146              ("pam" ,linux-pam)
 147              ("mit-krb5" ,mit-krb5)
 148              ("zlib" ,zlib)
 149              ("xauth" ,xauth)))                   ;for 'ssh -X' and 'ssh -Y'
 150    (arguments
 151     `(#:test-target "tests"
 152       #:configure-flags  `("--sysconfdir=/etc/ssh"
 153
 154                            ;; Default value of 'PATH' used by sshd.
 155                           "--with-default-path=/run/current-system/profile/bin"
 156
 157                           ;; configure needs to find krb5-config
 158                           ,(string-append "--with-kerberos5="
 159                                           (assoc-ref %build-inputs "mit-krb5")
 160                                           "/bin")
 161
 162                           ;; Enable PAM support in sshd.
 163                           "--with-pam")
 164
 165       #:phases
 166       (modify-phases %standard-phases
 167         (add-after 'configure 'reset-/var/empty
 168          (lambda* (#:key outputs #:allow-other-keys)
 169            (let ((out (assoc-ref outputs "out")))
 170              (substitute* "Makefile"
 171                (("PRIVSEP_PATH=/var/empty")
 172                 (string-append "PRIVSEP_PATH=" out "/var/empty")))
 173              #t)))
 174         (add-before 'check 'patch-tests
 175          (lambda _
 176            ;; remove 't-exec' regress target which requires user 'sshd'
 177            (substitute* "regress/Makefile"
 178              (("^(REGRESS_TARGETS=.*) t-exec(.*)" all pre post)
 179               (string-append pre post)))
 180            #t))
 181         (replace 'install
 182          (lambda* (#:key outputs (make-flags '()) #:allow-other-keys)
 183            ;; install without host keys and system configuration files
 184            (and (zero? (apply system* "make" "install-nosysconf" make-flags))
 185                 (begin
 186                   (install-file "contrib/ssh-copy-id"
 187                                 (string-append (assoc-ref outputs "out")
 188                                                "/bin/"))
 189                   (chmod (string-append (assoc-ref outputs "out")
 190                                         "/bin/ssh-copy-id") #o555)
 191                   (install-file "contrib/ssh-copy-id.1"
 192                                 (string-append (assoc-ref outputs "out")
 193                                                "/share/man/man1/"))
 194                   #t)))))))
 195    (synopsis "Client and server for the secure shell (ssh) protocol")
 196    (description
 197     "The SSH2 protocol implemented in OpenSSH is standardised by the
 198 IETF secsh working group and is specified in several RFCs and drafts.
 199 It is composed of three layered components:
 200
 201 The transport layer provides algorithm negotiation and a key exchange.
 202 The key exchange includes server authentication and results in a
 203 cryptographically secured connection: it provides integrity, confidentiality
 204 and optional compression.
 205
 206 The user authentication layer uses the established connection and relies on
 207 the services provided by the transport layer.  It provides several mechanisms
 208 for user authentication.  These include traditional password authentication
 209 as well as public-key or host-based authentication mechanisms.
 210
 211 The connection layer multiplexes many different concurrent channels over the
 212 authenticated connection and allows tunneling of login sessions and
 213 TCP-forwarding.  It provides a flow control service for these channels.
 214 Additionally, various channel-specific options can be negotiated.")
 215    (license (license:non-copyleft "file://LICENSE"
 216                                "See LICENSE in the distribution."))
 217    (home-page "http://www.openssh.org/")))
 218
 219 (define-public guile-ssh
 220   (package
 221     (name "guile-ssh")
 222     (version "0.11.0")
 223     (home-page "https://github.com/artyom-poptsov/guile-ssh")
 224     (source (origin
 225               ;; ftp://memory-heap.org/software/guile-ssh/guile-ssh-VERSION.tar.gz
 226               ;; exists, but the server appears to be too slow and unreliable.
 227               ;; Also, using this URL allows the GitHub updater to work.
 228               (method url-fetch)
 229               (uri (string-append home-page "/archive/v"
 230                                   version ".tar.gz"))
 231               (file-name (string-append name "-" version ".tar.gz"))
 232               (sha256
 233                (base32
 234                 "0r261i8kc3avbmbwgyzak2vnqwssjlgz37g2y2fwm80w9bmn2m7j"))
 235               (patches (search-patches "guile-ssh-rexec-bug.patch"
 236                                        "guile-ssh-double-free.patch"
 237                                        "guile-ssh-channel-finalization.patch"))
 238               (modules '((guix build utils)))
 239               (snippet
 240                ;; 'configure.ac' mistakenly tries to link files from examples/
 241                ;; that are not instantiated yet.  Work around it.
 242                '(substitute* "configure.ac"
 243                   (("AC_CONFIG_LINKS\\(\\[examples/([^:]+):.*" _ file)
 244                    (string-append "AC_CONFIG_FILES([examples/" file
 245                                   "], [chmod +x examples/"
 246                                   file "])\n"))))))
 247     (build-system gnu-build-system)
 248     (outputs '("out" "debug"))
 249     (arguments
 250      '(#:phases (modify-phases %standard-phases
 251                   (add-after 'unpack 'autoreconf
 252                     (lambda* (#:key inputs #:allow-other-keys)
 253                       (zero? (system* "autoreconf" "-vfi"))))
 254                   (add-before 'build 'fix-libguile-ssh-file-name
 255                     (lambda* (#:key outputs #:allow-other-keys)
 256                       ;; Build and install libguile-ssh.so so that we can use
 257                       ;; its absolute file name in .scm files, before we build
 258                       ;; the .go files.
 259                       (and (zero? (system* "make" "install"
 260                                            "-C" "libguile-ssh"
 261                                            "-j" (number->string
 262                                                  (parallel-job-count))))
 263                            (let* ((out      (assoc-ref outputs "out"))
 264                                   (libdir   (string-append out "/lib")))
 265                              (substitute* (find-files "." "\\.scm$")
 266                                (("\"libguile-ssh\"")
 267                                 (string-append "\"" libdir "/libguile-ssh\"")))
 268                              #t)))))
 269
 270        ;; Tests are not parallel-safe.
 271        #:parallel-tests? #f))
 272     (native-inputs `(("autoconf" ,autoconf)
 273                      ("automake" ,automake)
 274                      ("libtool" ,libtool)
 275                      ("texinfo" ,texinfo)
 276                      ("pkg-config" ,pkg-config)
 277                      ("which" ,which)))
 278     (inputs `(("guile" ,guile-2.2)
 279               ("libssh" ,libssh)
 280               ("libgcrypt" ,libgcrypt)))
 281     (synopsis "Guile bindings to libssh")
 282     (description
 283      "Guile-SSH is a library that provides access to the SSH protocol for
 284 programs written in GNU Guile interpreter.  It is a wrapper to the underlying
 285 libssh library.")
 286     (license license:gpl3+)))
 287
 288 (define-public guile2.2-ssh
 289   (deprecated-package "guile2.2-ssh" guile-ssh))
 290
 291 (define-public guile2.0-ssh
 292   (package
 293     (inherit guile-ssh)
 294     (name "guile2.0-ssh")
 295     (inputs `(("guile" ,guile-2.0)
 296               ,@(alist-delete "guile" (package-inputs guile-ssh))))))
 297
 298 (define-public corkscrew
 299   (package
 300     (name "corkscrew")
 301     (version "2.0")
 302     (source
 303      (origin
 304        (method url-fetch)
 305        ;; The agroman.net domain name expired on 2017-03-23, and the original
 306        ;; "http://www.agroman.net/corkscrew/corkscrew-2.0.tar.gz" now returns
 307        ;; bogus HTML.  Perhaps it will yet return.  Until then, use a mirror.
 308        (uri (string-append "https://downloads.openwrt.org/sources/"
 309                            "corkscrew-" version ".tar.gz"))
 310        (sha256 (base32
 311                 "1gmhas4va6gd70i2x2mpxpwpgww6413mji29mg282jms3jscn3qd"))))
 312     (build-system gnu-build-system)
 313     (arguments
 314      ;; Replace configure phase as the ./configure script does not link
 315      ;; CONFIG_SHELL and SHELL passed as parameters
 316      '(#:phases
 317        (modify-phases %standard-phases
 318          (replace 'configure
 319            (lambda* (#:key outputs inputs system build target
 320                            #:allow-other-keys #:rest args)
 321              (let* ((configure (assoc-ref %standard-phases 'configure))
 322                     (prefix (assoc-ref outputs "out"))
 323                     (bash   (which "bash"))
 324                     ;; Set --build and --host flags as the provided config.guess
 325                     ;; is not able to detect them
 326                     (flags `(,(string-append "--prefix=" prefix)
 327                              ,(string-append "--build=" build)
 328                              ,(string-append "--host=" (or target build)))))
 329                (setenv "CONFIG_SHELL" bash)
 330                (zero? (apply system* bash
 331                              (string-append "." "/configure")
 332                              flags)))))
 333          (add-after 'install 'install-documentation
 334            (lambda* (#:key outputs #:allow-other-keys)
 335              (let* ((out (assoc-ref outputs "out"))
 336                     (doc (string-append out "/share/doc/corkscrew")))
 337                (install-file "README" doc)
 338                #t))))))
 339     (home-page "http://www.agroman.net/corkscrew")
 340     (synopsis "SSH tunneling through HTTP(S) proxies")
 341     (description
 342      "Corkscrew tunnels SSH connections through most HTTP and HTTPS proxies.
 343 Proxy authentication is only supported through the plain-text HTTP basic
 344 authentication scheme.")
 345     (license license:gpl2+)))
 346
 347 (define-public mosh
 348   (package
 349     (name "mosh")
 350     (version "1.3.0")
 351     (source (origin
 352               (method url-fetch)
 353               (uri (string-append "https://mosh.org/mosh-" version ".tar.gz"))
 354               (sha256
 355                (base32
 356                 "0xikz40q873g9ihvz3x6bwkcb9hb8kcnp5wpcmb72pg5c7s143ij"))))
 357     (build-system gnu-build-system)
 358     (arguments
 359      '(#:phases
 360        (modify-phases %standard-phases
 361          (add-after 'install 'wrap
 362            (lambda* (#:key outputs #:allow-other-keys)
 363              ;; Make sure 'mosh' can find 'mosh-client' and
 364              ;; 'mosh-server'.
 365              (let* ((out (assoc-ref outputs "out"))
 366                     (bin (string-append out "/bin")))
 367                (wrap-program (string-append bin "/mosh")
 368                              `("PATH" ":" prefix (,bin)))))))))
 369     (native-inputs
 370      `(("pkg-config" ,pkg-config)))
 371     (inputs
 372      `(("openssl" ,openssl)
 373        ("perl" ,perl)
 374        ("perl-io-tty" ,perl-io-tty)
 375        ("zlib" ,zlib)
 376        ("ncurses" ,ncurses)
 377        ("protobuf" ,protobuf)
 378        ("boost-headers" ,boost)))
 379     (home-page "https://mosh.org/")
 380     (synopsis "Remote shell tolerant to intermittent connectivity")
 381     (description
 382      "Remote terminal application that allows roaming, supports intermittent
 383 connectivity, and provides intelligent local echo and line editing of user
 384 keystrokes.  Mosh is a replacement for SSH.  It's more robust and responsive,
 385 especially over Wi-Fi, cellular, and long-distance links.")
 386     (license license:gpl3+)))
 387
 388 (define-public et
 389   (package
 390     (name "et")
 391     (version "3.1.0")
 392     (source
 393      (origin
 394        (method url-fetch)
 395        (uri (string-append
 396              "https://github.com/MisterTea/EternalTCP/archive/et-v"
 397              version ".tar.gz"))
 398        (sha256
 399         (base32 "1n2w2kqbshdmbb0gz4yizyw9gqfls6qm2dnwx1d9c2hz7hmi7521"))))
 400     (build-system cmake-build-system)
 401     (arguments `(#:tests? #f))
 402     (native-inputs
 403      `(("pkg-config" ,pkg-config)))
 404     (inputs `(("glog" ,glog)
 405               ("gflags" ,gflags)
 406               ("libsodium" ,libsodium)
 407               ("protobuf" ,protobuf)))
 408     (synopsis "Remote shell that automatically reconnects")
 409     (description
 410      "Eternal Terminal (ET) is a remote shell that automatically reconnects
 411 without interrupting the session.  Unlike SSH sessions, ET sessions will
 412 survive even after the network outages or IP changes.  ET uses a custom
 413 protocol over TCP, not the SSH protocol.")
 414     (home-page "https://mistertea.github.io/EternalTCP/")
 415     (license license:asl2.0)))
 416
 417 (define-public dropbear
 418   (package
 419     (name "dropbear")
 420     (version "2017.75")
 421     (source (origin
 422               (method url-fetch)
 423               (uri (string-append
 424                     "https://matt.ucc.asn.au/" name "/releases/"
 425                     name "-" version ".tar.bz2"))
 426               (sha256
 427                (base32
 428                 "1309cm2aw62n9m3h38prvgsqr8bj85hfasgnvwkd42cp3k5ivg3c"))))
 429     (build-system gnu-build-system)
 430     (arguments  `(#:tests? #f)) ; There is no "make check" or anything similar
 431     (inputs `(("zlib" ,zlib)))
 432     (synopsis "Small SSH server and client")
 433     (description "Dropbear is a relatively small SSH server and
 434 client.  It runs on a variety of POSIX-based platforms.  Dropbear is
 435 particularly useful for embedded systems, such as wireless routers.")
 436     (home-page "https://matt.ucc.asn.au/dropbear/dropbear.html")
 437     (license (license:x11-style "" "See file LICENSE."))))
 438
 439 (define-public liboop
 440   (package
 441     (name "liboop")
 442     (version "1.0")
 443     (source
 444      (origin
 445       (method url-fetch)
 446       (uri (string-append "http://download.ofb.net/liboop/liboop-"
 447                           version ".tar.gz"))
 448       (sha256
 449        (base32
 450         "0z6rlalhvfca64jpvksppc9bdhs7jwhiw4y35g5ibvh91xp3rn1l"))
 451       (patches (search-patches "liboop-mips64-deplibs-fix.patch"))))
 452     (build-system gnu-build-system)
 453     (home-page "http://www.lysator.liu.se/liboop/")
 454     (synopsis "Event loop library")
 455     (description "Liboop is a low-level event loop management library for
 456 POSIX-based operating systems.  It supports the development of modular,
 457 multiplexed applications which may respond to events from several sources.  It
 458 replaces the \"select() loop\" and allows the registration of event handlers
 459 for file and network I/O, timers and signals.  Since processes use these
 460 mechanisms for almost all external communication, liboop can be used as the
 461 basis for almost any application.")
 462     (license license:lgpl2.1+)))
 463
 464 (define-public lsh
 465   (package
 466     (name "lsh")
 467     (version "2.1")
 468     (source (origin
 469               (method url-fetch)
 470               (uri (string-append "mirror://gnu/lsh/lsh-"
 471                                   version ".tar.gz"))
 472               (sha256
 473                (base32
 474                 "1qqjy9zfzgny0rkb27c8c7dfsylvb6n0ld8h3an2r83pmaqr9gwb"))
 475               (modules '((guix build utils)))
 476               (snippet
 477                '(begin
 478                   (substitute* "src/testsuite/functions.sh"
 479                     (("localhost")
 480                      ;; Avoid host name lookups since they don't work in
 481                      ;; chroot builds.
 482                      "127.0.0.1")
 483                     (("set -e")
 484                      ;; Make tests more verbose.
 485                      "set -e\nset -x"))
 486
 487                   (substitute* (find-files "src/testsuite" "-test$")
 488                     (("localhost") "127.0.0.1"))
 489
 490                   (substitute* "src/testsuite/login-auth-test"
 491                     (("/bin/cat") "cat"))))))
 492     (build-system gnu-build-system)
 493     (native-inputs
 494      `(("m4" ,m4)
 495        ("guile" ,guile-2.0)
 496        ("gperf" ,gperf)
 497        ("psmisc" ,psmisc)))                       ; for `killall'
 498     (inputs
 499      `(("nettle" ,nettle-2)
 500        ("linux-pam" ,linux-pam)
 501
 502        ;; 'rl.c' uses the 'CPPFunction' type, which is no longer in
 503        ;; Readline 6.3.
 504        ("readline" ,readline-6.2)
 505
 506        ("liboop" ,liboop)
 507        ("zlib" ,zlib)
 508        ("gmp" ,gmp)
 509
 510        ;; The server (lshd) invokes xauth when X11 forwarding is requested.
 511        ;; This adds 24 MiB (or 27%) to the closure of lsh.
 512        ("xauth" ,xauth)))
 513     (arguments
 514      '(;; Skip the `configure' test that checks whether /dev/ptmx &
 515        ;; co. work as expected, because it relies on impurities (for
 516        ;; instance, /dev/pts may be unavailable in chroots.)
 517        #:configure-flags '("lsh_cv_sys_unix98_ptys=yes"
 518
 519                            ;; Use glibc's argp rather than the bundled one.
 520                            "--with-system-argp"
 521
 522                            ;; 'lsh_argp.h' checks HAVE_ARGP_PARSE but nothing
 523                            ;; defines it.
 524                            "CPPFLAGS=-DHAVE_ARGP_PARSE")
 525
 526        ;; FIXME: Tests won't run in a chroot, presumably because
 527        ;; /etc/profile is missing, and thus clients get an empty $PATH
 528        ;; and nothing works.
 529        #:tests? #f
 530
 531        #:phases
 532        (modify-phases %standard-phases
 533          (add-before 'configure 'pre-configure
 534            (lambda* (#:key inputs #:allow-other-keys)
 535              (let* ((nettle    (assoc-ref inputs "nettle"))
 536                     (sexp-conv (string-append nettle "/bin/sexp-conv")))
 537                ;; Remove argp from the list of sub-directories; we don't want
 538                ;; to build it, really.
 539                (substitute* "src/Makefile.in"
 540                  (("^SUBDIRS = argp")
 541                   "SUBDIRS ="))
 542
 543                ;; Make sure 'lsh' and 'lshd' pick 'sexp-conv' in the right place
 544                ;; by default.
 545                (substitute* "src/environ.h.in"
 546                  (("^#define PATH_SEXP_CONV.*")
 547                   (string-append "#define PATH_SEXP_CONV \""
 548                                  sexp-conv "\"\n")))
 549
 550                ;; Same for the 'lsh-authorize' script.
 551                (substitute* "src/lsh-authorize"
 552                  (("=sexp-conv")
 553                   (string-append "=" sexp-conv)))
 554
 555                ;; Tell lshd where 'xauth' lives.  Another option would be to
 556                ;; hardcode "/run/current-system/profile/bin/xauth", thereby
 557                ;; reducing the closure size, but that wouldn't work on foreign
 558                ;; distros.
 559                (with-fluids ((%default-port-encoding "ISO-8859-1"))
 560                  (substitute* "src/server_x11.c"
 561                    (("define XAUTH_PROGRAM.*")
 562                     (string-append "define XAUTH_PROGRAM \""
 563                                    (assoc-ref inputs "xauth")
 564                                    "/bin/xauth\"\n")))))
 565
 566              ;; Tests rely on $USER being set.
 567              (setenv "USER" "guix"))))))
 568     (home-page "http://www.lysator.liu.se/~nisse/lsh/")
 569     (synopsis "GNU implementation of the Secure Shell (ssh) protocols")
 570     (description
 571      "GNU lsh is a free implementation of the SSH version 2 protocol.  It is
 572 used to create a secure line of communication between two computers,
 573 providing shell access to the server system from the client.  It provides
 574 both the server daemon and the client application, as well as tools for
 575 manipulating key files.")
 576     (license license:gpl2+)))
 577
 578 (define-public sshpass
 579   (package
 580     (name "sshpass")
 581     (version "1.06")
 582     (synopsis "Non-interactive password authentication with SSH")
 583     (home-page "https://sourceforge.net/projects/sshpass/")
 584     (source
 585      (origin
 586        (method url-fetch)
 587        (uri (string-append "mirror://sourceforge/sshpass/sshpass/"
 588                            version "/sshpass-" version ".tar.gz"))
 589        (sha256
 590         (base32
 591          "0q7fblaczb7kwbsz0gdy9267z0sllzgmf0c7z5c9mf88wv74ycn6"))))
 592     (build-system gnu-build-system)
 593     (description "sshpass is a tool for non-interactivly performing password
 594 authentication with SSH's so-called @dfn{interactive keyboard password
 595 authentication}.")
 596     (license license:gpl2+)))
 597
 598 (define-public autossh
 599   (package
 600     (name "autossh")
 601     (version "1.4e")
 602     (source
 603      (origin
 604        (method url-fetch)
 605        (uri (string-append
 606              "http://www.harding.motd.ca/autossh/autossh-"
 607              version ".tgz"))
 608        (sha256
 609         (base32 "0mlicw28vq2jxa0jf0dys5ja75v0fxpjavlq9dpif6bnknji13ly"))))
 610     (build-system gnu-build-system)
 611     (arguments `(#:tests? #f)) ; There is no "make check" or anything similar
 612     (inputs `(("openssh" ,openssh)))
 613     (synopsis "Automatically restart SSH sessions and tunnels")
 614     (description "autossh is a program to start a copy of @command{ssh} and
 615 monitor it, restarting it as necessary should it die or stop passing traffic.")
 616     (home-page "http://www.harding.motd.ca/autossh/")
 617     (license
 618      ;; Why point to a source file?  Well, all the individual files have a
 619      ;; copy of this license in their headers, but there's no separate file
 620      ;; with that information.
 621      (license:non-copyleft "file://autossh.c"))))