services: Add agetty service.
* gnu/services/base.scm (<agetty-configuration>): New record type. (agetty-shepherd-service, agetty-service): New procedures. (agetty-service-type): New variable. * doc/guix.texi (Base Services): Document it. [mingetty-configuration],[kmscon-configuration]: Specify the types of supported consoles.master
Leo Famulari
parent
a78e0bda99
commit
9ee4c9ab6f
170
doc/guix.texi
170
doc/guix.texi
|
|
@ -8391,7 +8391,7 @@ other things.
|
|||
|
||||
@deftp {Data Type} mingetty-configuration
|
||||
This is the data type representing the configuration of Mingetty, which
|
||||
implements console log-in.
|
||||
provides the default implementation of virtual console log-in.
|
||||
|
||||
@table @asis
|
||||
|
||||
|
|
@ -8418,6 +8418,172 @@ The Mingetty package to use.
|
|||
@end table
|
||||
@end deftp
|
||||
|
||||
@deffn {Scheme Procedure} agetty-service @var{config}
|
||||
Return a service to run agetty according to @var{config}, an
|
||||
@code{<agetty-configuration>} object, which specifies the tty to run,
|
||||
among other things.
|
||||
@end deffn
|
||||
|
||||
@deftp {Data Type} agetty-configuration
|
||||
This is the data type representing the configuration of agetty, which
|
||||
implements virtual and serial console log-in. See the @code{agetty(8)}
|
||||
man page for more information.
|
||||
|
||||
@table @asis
|
||||
|
||||
@item @code{tty}
|
||||
The name of the console this agetty runs on, as a string---e.g.,
|
||||
@code{"ttyS0"}. This argument is mandatory.
|
||||
|
||||
@item @code{baud-rate} (default: @code{#f})
|
||||
A string containing a comma-separated list of one or more baud rates, in
|
||||
descending order.
|
||||
|
||||
@item @code{term} (default: @code{#f})
|
||||
A string containing the value used for the @code{TERM} environment
|
||||
variable.
|
||||
|
||||
@item @code{eight-bits?} (default: @code{#f})
|
||||
When @code{#t}, the tty is assumed to be 8-bit clean, and parity detection is
|
||||
disabled.
|
||||
|
||||
@item @code{auto-login} (default: @code{#f})
|
||||
When passed a login name, as a string, the specified user will be logged
|
||||
in automatically without prompting for their login name or password.
|
||||
|
||||
@item @code{no-reset?} (default: @code{#f})
|
||||
When @code{#t}, don't reset terminal cflags (control modes).
|
||||
|
||||
@item @code{host} (default: @code{#f})
|
||||
This accepts a string containing the "login_host", which will be written
|
||||
into the @file{/var/run/utmpx} file.
|
||||
|
||||
@item @code{remote?} (default: @code{#f})
|
||||
When set to @code{#t} in conjunction with @var{host}, this will add an
|
||||
@code{-r} fakehost option to the command line of the login program
|
||||
specified in @var{login-program}.
|
||||
|
||||
@item @code{flow-control?} (default: @code{#f})
|
||||
When set to @code{#t}, enable hardware (RTS/CTS) flow control.
|
||||
|
||||
@item @code{no-issue?} (default: @code{#f})
|
||||
When set to @code{#t}, the contents of the @file{/etc/issue} file will
|
||||
not be displayed before presenting the login prompt.
|
||||
|
||||
@item @code{init-string} (default: @code{#f})
|
||||
This accepts a string that will be sent to the tty or modem before
|
||||
sending anything else. It can be used to initialize a modem.
|
||||
|
||||
@item @code{no-clear?} (default: @code{#f})
|
||||
When set to @code{#t}, agetty will not clear the screen before showing
|
||||
the login prompt.
|
||||
|
||||
@item @code{login-program} (default: (file-append shadow "/bin/login"))
|
||||
This must be either a gexp denoting the name of a log-in program, or
|
||||
unset, in which case the default value is the @command{login} from the
|
||||
Shadow tool suite.
|
||||
|
||||
@item @code{local-line} (default: @code{#f})
|
||||
Control the CLOCAL line flag. This accepts one of three symbols as
|
||||
arguments, @code{'auto}, @code{'always}, or @code{'never}. If @code{#f},
|
||||
the default value chosen by agetty is @code{'auto}.
|
||||
|
||||
@item @code{extract-baud?} (default: @code{#f})
|
||||
When set to @code{#t}, instruct agetty to try to extract the baud rate
|
||||
from the status messages produced by certain types of modems.
|
||||
|
||||
@item @code{skip-login?} (default: @code{#f})
|
||||
When set to @code{#t}, do not prompt the user for a login name. This
|
||||
can be used with @var{login-program} field to use non-standard login
|
||||
systems.
|
||||
|
||||
@item @code{no-newline?} (default: @code{#f})
|
||||
When set to @code{#t}, do not print a newline before printing the
|
||||
@file{/etc/issue} file.
|
||||
|
||||
@c Is this dangerous only when used with login-program, or always?
|
||||
@item @code{login-options} (default: @code{#f})
|
||||
This option accepts a string containing options that are passed to the
|
||||
login program. When used with the @var{login-program}, be aware that a
|
||||
malicious user could try to enter a login name containing embedded
|
||||
options that could be parsed by the login program.
|
||||
|
||||
@item @code{login-pause} (default: @code{#f})
|
||||
When set to @code{#t}, wait for any key before showing the login prompt.
|
||||
This can be used in conjunction with @var{auto-login} to save memory by
|
||||
lazily spawning shells.
|
||||
|
||||
@item @code{chroot} (default: @code{#f})
|
||||
Change root to the specified directory. This option accepts a directory
|
||||
path as a string.
|
||||
|
||||
@item @code{hangup?} (default: @code{#f})
|
||||
Use the Linux system call @code{vhangup} to do a virtual hangup of the
|
||||
specified terminal.
|
||||
|
||||
@item @code{keep-baud?} (default: @code{#f})
|
||||
When set to @code{#t}, try to keep the existing baud rate. The baud
|
||||
rates from @var{baud-rate} are used when agetty receives a @key{BREAK}
|
||||
character.
|
||||
|
||||
@item @code{timeout} (default: @code{#f})
|
||||
When set to an integer value, terminate if no user name could be read
|
||||
within @var{timeout} seconds.
|
||||
|
||||
@item @code{detect-case?} (default: @code{#f})
|
||||
When set to @code{#t}, turn on support for detecting an uppercase-only
|
||||
terminal. This setting will detect a login name containing only
|
||||
uppercase letters as indicating an uppercase-only terminal and turn on
|
||||
some upper-to-lower case conversions. Note that this will not support
|
||||
Unicode characters.
|
||||
|
||||
@item @code{wait-cr?} (default: @code{#f})
|
||||
When set to @code{#t}, wait for the user or modem to send a
|
||||
carriage-return or linefeed character before displaying
|
||||
@file{/etc/issue} or login prompt. This is typically used with the
|
||||
@var{init-string} option.
|
||||
|
||||
@item @code{no-hints?} (default: @code{#f})
|
||||
When set to @code{#t}, do not print hints about Num, Caps, and Scroll
|
||||
locks.
|
||||
|
||||
@item @code{no-hostname?} (default: @code{#f})
|
||||
By default, the hostname is printed. When this option is set to
|
||||
@code{#t}, no hostname will be shown at all.
|
||||
|
||||
@item @code{long-hostname?} (default: @code{#f})
|
||||
By default, the hostname is only printed until the first dot. When this
|
||||
option is set to @code{#t}, the fully qualified hostname by
|
||||
@code{gethostname} or @code{getaddrinfo} is shown.
|
||||
|
||||
@item @code{erase-characters} (default: @code{#f})
|
||||
This option accepts a string of additional characters that should be
|
||||
interpreted as backspace when the user types their login name.
|
||||
|
||||
@item @code{kill-characters} (default: @code{#f})
|
||||
This option accepts a string that should be interpreted to mean "ignore
|
||||
all previous characters" (also called a "kill" character) when the types
|
||||
their login name.
|
||||
|
||||
@item @code{chdir} (default: @code{#f})
|
||||
This option accepts, as a string, a directory path that will be changed
|
||||
to before login.
|
||||
|
||||
@item @code{delay} (default: @code{#f})
|
||||
This options accepts, as an integer, the number of seconds to sleep
|
||||
before opening the tty and displaying the login prompt.
|
||||
|
||||
@item @code{nice} (default: @code{#f})
|
||||
This option accepts, as an integer, the nice value with which to run the
|
||||
@command{login} program.
|
||||
|
||||
@item @code{extra-options} (default: @code{'()})
|
||||
This option provides an "escape hatch" for the user to provide arbitrary
|
||||
command-line arguments to @command{agetty} as a list of strings.
|
||||
|
||||
@end table
|
||||
@end deftp
|
||||
|
||||
@deffn {Scheme Procedure} kmscon-service-type @var{config}
|
||||
Return a service to run @uref{https://www.freedesktop.org/wiki/Software/kmscon,kmscon}
|
||||
according to @var{config}, a @code{<kmscon-configuration>} object, which
|
||||
|
|
@ -8426,7 +8592,7 @@ specifies the tty to run, among other things.
|
|||
|
||||
@deftp {Data Type} kmscon-configuration
|
||||
This is the data type representing the configuration of Kmscon, which
|
||||
implements console log-in.
|
||||
implements virtual console log-in.
|
||||
|
||||
@table @asis
|
||||
|
||||
|
|
|
|||
|
|
@ -38,6 +38,7 @@
|
|||
#:select (canonical-package glibc))
|
||||
#:use-module (gnu packages bash)
|
||||
#:use-module (gnu packages package-management)
|
||||
#:use-module (gnu packages linux)
|
||||
#:use-module (gnu packages lsof)
|
||||
#:use-module (gnu packages terminals)
|
||||
#:use-module ((gnu build file-systems)
|
||||
|
|
@ -74,6 +75,11 @@
|
|||
login-service-type
|
||||
login-service
|
||||
|
||||
agetty-configuration
|
||||
agetty-configuration?
|
||||
agetty-service
|
||||
agetty-service-type
|
||||
|
||||
mingetty-configuration
|
||||
mingetty-configuration?
|
||||
mingetty-service
|
||||
|
|
@ -730,6 +736,222 @@ Return a service that sets up Unicode support in @var{tty} and loads
|
|||
the message of the day, among other things."
|
||||
(service login-service-type config))
|
||||
|
||||
(define-record-type* <agetty-configuration>
|
||||
agetty-configuration make-agetty-configuration
|
||||
agetty-configuration?
|
||||
(agetty agetty-configuration-agetty ;<package>
|
||||
(default util-linux))
|
||||
(tty agetty-configuration-tty) ;string
|
||||
(term agetty-term ;string | #f
|
||||
(default #f))
|
||||
(baud-rate agetty-baud-rate ;string | #f
|
||||
(default #f))
|
||||
(auto-login agetty-auto-login ;list of strings | #f
|
||||
(default #f))
|
||||
(login-program agetty-login-program ;gexp
|
||||
(default (file-append shadow "/bin/login")))
|
||||
(login-pause? agetty-login-pause? ;Boolean
|
||||
(default #f))
|
||||
(eight-bits? agetty-eight-bits? ;Boolean
|
||||
(default #f))
|
||||
(no-reset? agetty-no-reset? ;Boolean
|
||||
(default #f))
|
||||
(remote? agetty-remote? ;Boolean
|
||||
(default #f))
|
||||
(flow-control? agetty-flow-control? ;Boolean
|
||||
(default #f))
|
||||
(host agetty-host ;string | #f
|
||||
(default #f))
|
||||
(no-issue? agetty-no-issue? ;Boolean
|
||||
(default #f))
|
||||
(init-string agetty-init-string ;string | #f
|
||||
(default #f))
|
||||
(no-clear? agetty-no-clear? ;Boolean
|
||||
(default #f))
|
||||
(local-line agetty-local-line ;always | never | auto
|
||||
(default #f))
|
||||
(extract-baud? agetty-extract-baud? ;Boolean
|
||||
(default #f))
|
||||
(skip-login? agetty-skip-login? ;Boolean
|
||||
(default #f))
|
||||
(no-newline? agetty-no-newline? ;Boolean
|
||||
(default #f))
|
||||
(login-options agetty-login-options ;string | #f
|
||||
(default #f))
|
||||
(chroot agetty-chroot ;string | #f
|
||||
(default #f))
|
||||
(hangup? agetty-hangup? ;Boolean
|
||||
(default #f))
|
||||
(keep-baud? agetty-keep-baud? ;Boolean
|
||||
(default #f))
|
||||
(timeout agetty-timeout ;integer | #f
|
||||
(default #f))
|
||||
(detect-case? agetty-detect-case? ;Boolean
|
||||
(default #f))
|
||||
(wait-cr? agetty-wait-cr? ;Boolean
|
||||
(default #f))
|
||||
(no-hints? agetty-no-hints? ;Boolean
|
||||
(default #f))
|
||||
(no-hostname? agetty-no hostname? ;Boolean
|
||||
(default #f))
|
||||
(long-hostname? agetty-long-hostname? ;Boolean
|
||||
(default #f))
|
||||
(erase-characters agetty-erase-characters ;string | #f
|
||||
(default #f))
|
||||
(kill-characters agetty-kill-characters ;string | #f
|
||||
(default #f))
|
||||
(chdir agetty-chdir ;string | #f
|
||||
(default #f))
|
||||
(delay agetty-delay ;integer | #f
|
||||
(default #f))
|
||||
(nice agetty-nice ;integer | #f
|
||||
(default #f))
|
||||
;; "Escape hatch" for passing arbitrary command-line arguments.
|
||||
(extra-options agetty-extra-options ;list of strings
|
||||
(default '()))
|
||||
;;; XXX Unimplemented for now!
|
||||
;;; (issue-file agetty-issue-file ;file-like
|
||||
;;; (default #f))
|
||||
)
|
||||
|
||||
(define agetty-shepherd-service
|
||||
(match-lambda
|
||||
(($ <agetty-configuration> agetty tty term baud-rate auto-login
|
||||
login-program login-pause? eight-bits? no-reset? remote? flow-control?
|
||||
host no-issue? init-string no-clear? local-line extract-baud?
|
||||
skip-login? no-newline? login-options chroot hangup? keep-baud? timeout
|
||||
detect-case? wait-cr? no-hints? no-hostname? long-hostname?
|
||||
erase-characters kill-characters chdir delay nice extra-options)
|
||||
(list
|
||||
(shepherd-service
|
||||
(documentation "Run agetty on a tty.")
|
||||
(provision (list (symbol-append 'term- (string->symbol tty))))
|
||||
|
||||
;; Since the login prompt shows the host name, wait for the 'host-name'
|
||||
;; service to be done. Also wait for udev essentially so that the tty
|
||||
;; text is not lost in the middle of kernel messages (see also
|
||||
;; mingetty-shepherd-service).
|
||||
(requirement '(user-processes host-name udev))
|
||||
|
||||
(start #~(make-forkexec-constructor
|
||||
(list #$(file-append util-linux "/sbin/agetty")
|
||||
#$@extra-options
|
||||
#$@(if eight-bits?
|
||||
#~("--8bits")
|
||||
#~())
|
||||
#$@(if no-reset?
|
||||
#~("--noreset")
|
||||
#~())
|
||||
#$@(if remote?
|
||||
#~("--remote")
|
||||
#~())
|
||||
#$@(if flow-control?
|
||||
#~("--flow-control")
|
||||
#~())
|
||||
#$@(if host
|
||||
#~("--host" #$host)
|
||||
#~())
|
||||
#$@(if no-issue?
|
||||
#~("--noissue")
|
||||
#~())
|
||||
#$@(if init-string
|
||||
#~("--init-string" #$init-string)
|
||||
#~())
|
||||
#$@(if no-clear?
|
||||
#~("--noclear")
|
||||
#~())
|
||||
;;; FIXME This doesn't work as expected. According to agetty(8), if this option
|
||||
;;; is not passed, then the default is 'auto'. However, in my tests, when that
|
||||
;;; option is selected, agetty never presents the login prompt, and the
|
||||
;;; term-ttyS0 service respawns every few seconds.
|
||||
#$@(if local-line
|
||||
#~(#$(match local-line
|
||||
('auto "--local-line=auto")
|
||||
('always "--local-line=always")
|
||||
('never "-local-line=never")))
|
||||
#~())
|
||||
#$@(if extract-baud?
|
||||
#~("--extract-baud")
|
||||
#~())
|
||||
#$@(if skip-login?
|
||||
#~("--skip-login")
|
||||
#~())
|
||||
#$@(if no-newline?
|
||||
#~("--nonewline")
|
||||
#~())
|
||||
#$@(if login-options
|
||||
#~("--login-options" #$login-options)
|
||||
#~())
|
||||
#$@(if chroot
|
||||
#~("--chroot" #$chroot)
|
||||
#~())
|
||||
#$@(if hangup?
|
||||
#~("--hangup")
|
||||
#~())
|
||||
#$@(if keep-baud?
|
||||
#~("--keep-baud")
|
||||
#~())
|
||||
#$@(if timeout
|
||||
#~("--timeout" #$(number->string timeout))
|
||||
#~())
|
||||
#$@(if detect-case?
|
||||
#~("--detect-case")
|
||||
#~())
|
||||
#$@(if wait-cr?
|
||||
#~("--wait-cr")
|
||||
#~())
|
||||
#$@(if no-hints?
|
||||
#~("--nohints?")
|
||||
#~())
|
||||
#$@(if no-hostname?
|
||||
#~("--nohostname")
|
||||
#~())
|
||||
#$@(if long-hostname?
|
||||
#~("--long-hostname")
|
||||
#~())
|
||||
#$@(if erase-characters
|
||||
#~("--erase-chars" #$erase-characters)
|
||||
#~())
|
||||
#$@(if kill-characters
|
||||
#~("--kill-chars" #$kill-characters)
|
||||
#~())
|
||||
#$@(if chdir
|
||||
#~("--chdir" #$chdir)
|
||||
#~())
|
||||
#$@(if delay
|
||||
#~("--delay" #$(number->string delay))
|
||||
#~())
|
||||
#$@(if nice
|
||||
#~("--nice" #$(number->string nice))
|
||||
#~())
|
||||
#$@(if auto-login
|
||||
(list "--autologin" auto-login)
|
||||
'())
|
||||
#$@(if login-program
|
||||
#~("--login-program" #$login-program)
|
||||
#~())
|
||||
#$@(if login-pause?
|
||||
#~("--login-pause")
|
||||
#~())
|
||||
#$tty
|
||||
#$@(if baud-rate
|
||||
#~(#$baud-rate)
|
||||
#~())
|
||||
#$@(if term
|
||||
#~(#$term)
|
||||
#~()))))
|
||||
(stop #~(make-kill-destructor)))))))
|
||||
|
||||
(define agetty-service-type
|
||||
(service-type (name 'agetty)
|
||||
(extensions (list (service-extension shepherd-root-service-type
|
||||
agetty-shepherd-service)))))
|
||||
|
||||
(define* (agetty-service config)
|
||||
"Return a service to run agetty according to @var{config}, which specifies
|
||||
the tty to run, among other things."
|
||||
(service agetty-service-type config))
|
||||
|
||||
(define-record-type* <mingetty-configuration>
|
||||
mingetty-configuration make-mingetty-configuration
|
||||
mingetty-configuration?
|
||||
|
|
|
|||
Loading…
Reference in New Issue