That is that there are several consoles, the /dev/ttyS0 which
is type of ibm3215 and a dumb terminal, then there is the device
/dev/3270/tty1 which can handle ANSI color escape sequences and is
a ibm327x terminal, and the /dev/ttyS1 which is a vt220 terminal.
The macro is_speed() in agetty.c allows to distinguish between the
terminal line (/dev)3270/tty1 and the speed options on the command
line used in
/run/systemd/generator/getty.target.wants/serial-getty@3270-tty1.service
which is a symbolic link to /usr/lib/systemd/system/serial-getty@.service
Signed-off-by: Werner Fink <werner@suse.de>
The nowadays used plymouth locks the devices used for the system
console which causes that agetty as well as sulogin can not modify
the termios settings of e.g. the serial devices of the systenm console.
Signed-off-by: Werner Fink <werner@suse.de>
Let's use nanosleep() although if usleep() exists. The nanosleep
function does no interact with signals and other timers.
The patch introduces xusleep() as replacement to libc (or our fallback)
usleep(). Yes, we don't want to use struct timespec + nanosleep()
everywhere in code as nano-time resolution is useless for us.
The patch also enlarges delays in some busy wait loops. It seems
enough to try read/write 4x per second.
Signed-off-by: Karel Zak <kzak@redhat.com>
which is due legacy reasons a block terminal of type 3270 or higher.
Whereas the second serial line on a S/390(x) is a real character
terminal which is compatible with VT220.
Signed-off-by: Werner Fink <werner@suse.de>
This patch allows to use a new \S or \S{VARNAME} sequence in the
/etc/issue file. The sequence prints data from /etc/os-release. The
reason is to keep /etc/issue file distribution and release
independent.
The \S{ANSI_COLOR} is converted to the real terminal escape seq.
For example:
\S
Kernel \r on an \m (\l)
or more complex example:
Welcome to \S{ANSI_COLOR}\S{NAME}0m \S{VERSION}
Report bugs at \S{BUG_REPORT_URL}.
See http://www.freedesktop.org/software/systemd/man/os-release.html
fr more details about /etc/issue.
Based on patch from Bill Nottingham <notting@redhat.com>.
Signed-off-by: Karel Zak <kzak@redhat.com>
In include/bits/utmp.h the ut_user and ut_time macros are marked with
comment they are backwards compatibility hacks. It is probably best to
avoid use of these macros where ever possible.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
* regression introduced by ef264c830e
* also increase sleep when O_NONBLOCK used (grr.. this is so stupid
thing, do we really need O_NONBLOCK for the stupid serial lines?)
References: https://bugzilla.redhat.com/show_bug.cgi?id=972457
Signed-off-by: Karel Zak <kzak@redhat.com>
- baud_rate is optional
- agetty has been rewritten 2 years ago, so don't blame original
authors in the man page
Signed-off-by: Karel Zak <kzak@redhat.com>
Now the -L option allows to explicitly enable CLOCAL flag.
Unfortunately sometimes it's necessary to clear the flag. This patch
add optional argument =<mode> to specify 'auto', 'always' and 'never'
to control CLOCAL flag.
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=816342
Signed-off-by: Karel Zak <kzak@redhat.com>
this one moves the init_chardata to include/ttyutils.h as well as to
lib/include/ttyutils.c. Also the macros CTL/CTRL are fixed in
agetty.c and sulogin.c to use the XOR variant CTL.
[kzak@redhat.com: use macro rather than global variable for default
chardata]
Signed-off-by: Werner Fink <werner@suse.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
- move struct chardata to include/ttyutils.h
- move console.{h,c} to login-utils/sulogin-* (it's sulogin specific)
- fix sulogin and agetty includes
Signed-off-by: Karel Zak <kzak@redhat.com>
We need way to disable the default kill and erase agetty chars to make
the getty usable for Active Directory users with '@' in username.
It seems that the most extendible solution is to add options that
allow to complete control additional erase/kill chars. If you specify
empty strings then the chars are disabled at all.
Note that this patch is backwardly compatible.
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=870854
Signed-off-by: Karel Zak <kzak@redhat.com>
The --autologin prints
hostname login: username (automatic login)
message. This commit allows to suppress the message at all if
--skip-login (aka skip prompt) is specified.
It means that
agetty --skip-login --noissue --autologin foouser
does completely silent autologin.
Addresses: https://github.com/karelzak/util-linux/issues/21
Signed-off-by: Karel Zak <kzak@redhat.com>
Let's close all tty file descriptors if called with --hangup option.
References: https://lkml.org/lkml/2012/6/5/145
Signed-off-by: Karel Zak <kzak@redhat.com>
The session setup TIOCSCTTY is optional, so tcsetpgrp() that depends
on controlling terminal should be optional too.
Reported-by: Hilko Bengen <bengen@debian.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
The TIOCSCTTY ioctl requires that caller is session leader -- so it
depends on initd (or we have to add setsid() to aggety). It seems that the
traditional way is to setup tty in agetty and session in login(1).
It means that all session related things (TIOCSCTTY, vhangup, ...) in the
command agetty should be optional. (Note that vhangup() is called when
--hangup is explicitly specified on command line, so log_err() makes
sense there.)
Reported-by: Andrew Walrond <andrew@walrond.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
* fix regression: missing username should not be reported (EPERM) if
-n/--skip-login is given and username is NULL.
* don't compose login options *string* if we can use argv *array* (the
string is necessary only for --login-options).
* don't overwrite --login-options by --autologin
The old code silently ignores login-options and "login -f <username>"
is always used.
The new code uses:
a) "login -f <username>" by default
b) "login <login-options>" for --login-options + --autologin
where for b) the username from "--autologin <username>" is used to
replace \u magic string in <login-options>.
* the \u could be used more than once in one login argv string, for
example: agetty --login-options "-o user=\\u,name=\\u --foo"
* the space in --login-options is correctly ignored, for example
agetty --login-options " hello world ".
Reviewed-by: Voelker, Bernhard <bernhard.voelker@siemens-enterprise.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Preserve IUTF8 as set up by the kernel, which knows which consoles are
in utf8 mode.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Werner Fink <werner@suse.de>
* Make blkdev_is_misaligned return 0 when BLKALIGNOFF is not available.
* Make procutils.c include c.h to get a PATH_MAX replacement.
* Provide agetty.c USE_SYSLOG, DEFAULT_VCTERM and DEFAULT_STERM
defaults for Hurd.
* Make agetty.c only deal with OFDEL, XCASE and VSWTCH if they are
available.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
Allow the system adminstrator to provide options to the login
program. Some changes for several layouts of the agetty
prompt like short host name or full qualified host name.
Four options enables the user to delay agetty after start,
to change the working directory, to change the root directory,
and to modified scheduling priority.
Signed-off-by: Werner Fink <werner@suse.de>
Add an autologin feature to agetty, that is that a user can be
automatically logged in. For this the options of for the
login program has to used. Make it possible to pass-through
options to the login program which requires a security check.
Signed-off-by: Werner Fink <werner@suse.de>
Better support of virtual console due support of UTF-8 login names
provided by e.g. LDAP. Set default size 24/80 on serial modem lines
if not found by the kernel.
Signed-off-by: Werner Fink <werner@suse.de>
Check out a virtual console line for UTF-8 support, also skip
modem specific setups on a virtual console line.
Signed-off-by: Werner Fink <werner@suse.de>
Ensure a proper session on the terminal line, that is do a
vhangup() and become the controlling terminal. After this
determine if the terminal line a virtual console by using
the ioctl TIOCMGET to get the status modem bits of a serial
line which is a invalid argument on a virtual console.
Signed-off-by: Werner Fink <werner@suse.de>
Next cleanup, that is split off special character parsing in do_prompt()
and parse_args(), handle name of line of virtual console and use it in
utmp update as well as the session id. Also move the initial TERM
variable to open_tty() as we use this later in open_tty(). Use writeall()
but avoid repeat to often for EAGAIN (compare with info page of the
(g)libc, description of the macro EAGAIN).
Signed-off-by: Werner Fink <werner@suse.de>
More code cleanup, that is use bit mask for eight bit option, use
modern speed_t type, split local error() into local log_err(), log_warn(),
and dolog() for fine graduated logging with syslogger.
Signed-off-by: Werner Fink <werner@suse.de>
In reply to two requests.
http://permalink.gmane.org/gmane.linux.utilities.util-linux-ng/3990http://permalink.gmane.org/gmane.linux.utilities.util-linux-ng/3999
The scubbing consists;
o Old school introduction back to the top of the source file.
o Indentation changes.
o Removal of void casting.
o Removal of braces from single statements.
o Unified format for comments.
o Comparison with W. Venema's code from 1993 to clean few comment
mysteries.
o Web referrals added to further explanation to near the code or
comments which some could find difficult to understand why.
o Clean up of comments.
o FIXME items added where attention is needed.
o Make functions static.
o Functions with same argument types use same argument order.
o Get rid of classic K&R style function declarations.
Please notice that this patch _should not_ affect how program
works e.g. this has no actual code changes.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The case clause after getopts is in alphabetical order, just like
option string definition and manual page. The patch also convers
spaces to tabs in this code block.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
I find it easier to read code in which standard file descriptors
are symbolic strings rather than numbers.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The longer #ifdef ... #endif markups have now at the end section
comment where they begun, which should improve preprosessor
directive readability.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This patch will introducing --help and --version options, which
does not have short version. Reason to this is a that the -h was
already assigned.
[kzak@redhat.com: - fix one usage call,
- use %1$s in usage printf format
- remove "static const" from enum]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
Werner Fink
Karel Zak
Sami Kerola
Benno Schulenberg
Yuri Chornoivan
James Buren
kernc
Michal Schmidt
Mantas Mikulėnas
Petr Uzel
Francesco Cosoleto
Dennis Jensen
Samuel Thibault