nick black 74d54e5ceb console: consume APC, DM, DCS ... commit 3a2b2eb556 upstream. The Linux console's VT102 implementation already consumes OSC ("Operating System Command") sequences, probably because that's how palette changes are transmitted. In addition to OSC, there are three other major clases of ANSI control strings: APC ("Application Program Command"), PM ("Privacy Message"), and DCS ("Device Control String"). They are handled similarly to OSC in terms of termination. Source: vt100.net Add three new enumerated states, one for each of these types. All three are handled the same way right now--they simply consume input until terminated. I hope to expand upon this firmament in the future. Add new predicate ansi_control_string(), returning true for any of these states. Replace explicit checks against ESosc with calls to this function. Transition to these states appropriately from the escape initiation (ESesc) state. This was motivated by the following Notcurses bugs: https://github.com/dankamongmen/notcurses/issues/2050 https://github.com/dankamongmen/notcurses/issues/1828 https://github.com/dankamongmen/notcurses/issues/2069 where standard VT sequences are not consumed by the Linux console. It's not necessary that the Linux console *support* these sequences, but it ought *consume* these well-specified classes of sequences. Tested by sending a variety of escape sequences to the console, and verifying that they still worked, or were now properly consumed. Verified that the escapes were properly terminated at a generic level. Verified that the Notcurses tools continued to show expected output on the Linux console, except now without escape bleedthrough. Link: https://lore.kernel.org/lkml/YSydL0q8iaUfkphg@schwarzgerat.orthanc/ Signed-off-by: nick black <dankamongmen@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-09-26 14:08:55 +02:00
..
hvc	hvsi: don't panic on tty_register_driver failure	2021-09-18 13:40:22 +02:00
ipwireless
serdev
serial	serial: sh-sci: fix break handling for sysrq	2021-09-18 13:40:29 +02:00
vt	console: consume APC, DM, DCS	2021-09-26 14:08:55 +02:00
amiserial.c	tty: amiserial: fix TIOCSSERIAL permission check	2021-05-14 09:49:55 +02:00
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c	tty: moxa: fix TIOCSSERIAL permission check	2021-05-14 09:49:56 +02:00
moxa.h
mxser.c
mxser.h
n_gsm.c	tty: n_gsm: check error while registering tty devices	2021-05-11 14:47:21 +02:00
n_hdlc.c	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer	2021-03-04 11:37:36 +01:00
n_null.c	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer	2021-03-04 11:37:36 +01:00
n_r3964.c	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer	2021-03-04 11:37:36 +01:00
n_tracerouter.c	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer	2021-03-04 11:37:36 +01:00
n_tracesink.c	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer	2021-03-04 11:37:36 +01:00
n_tracesink.h
n_tty.c	tty: teach the n_tty ICANON case about the new "cookie continuations" too	2021-03-07 12:34:16 +01:00
nozomi.c	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'	2021-07-14 16:56:39 +02:00
pty.c
rocket_int.h
rocket.c
rocket.h
synclink_gt.c
synclink.c
synclinkmp.c
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c	tty: Fix data race between tiocsti() and flush_to_ldisc()	2021-09-15 09:50:47 +02:00
tty_ioctl.c	tty: fix return value for unsupported termiox ioctls	2021-05-14 09:50:19 +02:00
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c