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26df6d1340
This patch is against the 2.6.34 source.
Paraphrased from the 1989 BSD patch by David Borman @ cray.com:
These are the changes needed for the kernel to support
LINEMODE in the server.
There is a new bit in the termios local flag word, EXTPROC.
When this bit is set, several aspects of the terminal driver
are disabled. Input line editing, character echo, and mapping
of signals are all disabled. This allows the telnetd to turn
off these functions when in linemode, but still keep track of
what state the user wants the terminal to be in.
New ioctl:
TIOCSIG Generate a signal to processes in the
current process group of the pty.
There is a new mode for packet driver, the TIOCPKT_IOCTL bit.
When packet mode is turned on in the pty, and the EXTPROC bit
is set, then whenever the state of the pty is changed, the
next read on the master side of the pty will have the TIOCPKT_IOCTL
bit set. This allows the process on the server side of the pty
to know when the state of the terminal has changed; it can then
issue the appropriate ioctl to retrieve the new state.
Since the original BSD patches accompanied the source code for telnet
I've left that reference here, but obviously the feature is useful for
any remote terminal protocol, including ssh.
The corresponding feature has existed in the BSD tty driver since 1989.
For historical reference, a good copy of the relevant files can be found
here:
http://anonsvn.mit.edu/viewvc/krb5/trunk/src/appl/telnet/?pathrev=17741
Signed-off-by: Howard Chu <hyc@symas.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/*
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* include/asm-xtensa/ioctls.h
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2003 - 2005 Tensilica Inc.
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*
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* Derived from "include/asm-i386/ioctls.h"
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*/
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#ifndef _XTENSA_IOCTLS_H
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#define _XTENSA_IOCTLS_H
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#include <asm/ioctl.h>
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#define FIOCLEX _IO('f', 1)
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#define FIONCLEX _IO('f', 2)
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#define FIOASYNC _IOW('f', 125, int)
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#define FIONBIO _IOW('f', 126, int)
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#define FIONREAD _IOR('f', 127, int)
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#define TIOCINQ FIONREAD
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#define FIOQSIZE _IOR('f', 128, loff_t)
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#define TCGETS 0x5401
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#define TCSETS 0x5402
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#define TCSETSW 0x5403
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#define TCSETSF 0x5404
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#define TCGETA _IOR('t', 23, struct termio)
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#define TCSETA _IOW('t', 24, struct termio)
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#define TCSETAW _IOW('t', 25, struct termio)
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#define TCSETAF _IOW('t', 28, struct termio)
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#define TCSBRK _IO('t', 29)
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#define TCXONC _IO('t', 30)
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#define TCFLSH _IO('t', 31)
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#define TIOCSWINSZ _IOW('t', 103, struct winsize)
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#define TIOCGWINSZ _IOR('t', 104, struct winsize)
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#define TIOCSTART _IO('t', 110) /* start output, like ^Q */
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#define TIOCSTOP _IO('t', 111) /* stop output, like ^S */
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#define TIOCOUTQ _IOR('t', 115, int) /* output queue size */
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#define TIOCSPGRP _IOW('t', 118, int)
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#define TIOCGPGRP _IOR('t', 119, int)
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#define TIOCEXCL _IO('T', 12)
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#define TIOCNXCL _IO('T', 13)
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#define TIOCSCTTY _IO('T', 14)
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#define TIOCSTI _IOW('T', 18, char)
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#define TIOCMGET _IOR('T', 21, unsigned int)
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#define TIOCMBIS _IOW('T', 22, unsigned int)
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#define TIOCMBIC _IOW('T', 23, unsigned int)
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#define TIOCMSET _IOW('T', 24, unsigned int)
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# define TIOCM_LE 0x001
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# define TIOCM_DTR 0x002
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# define TIOCM_RTS 0x004
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# define TIOCM_ST 0x008
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# define TIOCM_SR 0x010
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# define TIOCM_CTS 0x020
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# define TIOCM_CAR 0x040
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# define TIOCM_RNG 0x080
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# define TIOCM_DSR 0x100
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# define TIOCM_CD TIOCM_CAR
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# define TIOCM_RI TIOCM_RNG
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#define TIOCGSOFTCAR _IOR('T', 25, unsigned int)
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#define TIOCSSOFTCAR _IOW('T', 26, unsigned int)
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#define TIOCLINUX _IOW('T', 28, char)
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#define TIOCCONS _IO('T', 29)
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#define TIOCGSERIAL _IOR('T', 30, struct serial_struct)
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#define TIOCSSERIAL _IOW('T', 31, struct serial_struct)
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#define TIOCPKT _IOW('T', 32, int)
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# define TIOCPKT_DATA 0
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# define TIOCPKT_FLUSHREAD 1
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# define TIOCPKT_FLUSHWRITE 2
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# define TIOCPKT_STOP 4
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# define TIOCPKT_START 8
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# define TIOCPKT_NOSTOP 16
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# define TIOCPKT_DOSTOP 32
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# define TIOCPKT_IOCTL 64
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#define TIOCNOTTY _IO('T', 34)
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#define TIOCSETD _IOW('T', 35, int)
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#define TIOCGETD _IOR('T', 36, int)
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#define TCSBRKP _IOW('T', 37, int) /* Needed for POSIX tcsendbreak()*/
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#define TIOCTTYGSTRUCT _IOR('T', 38, struct tty_struct) /* For debugging only*/
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#define TIOCSBRK _IO('T', 39) /* BSD compatibility */
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#define TIOCCBRK _IO('T', 40) /* BSD compatibility */
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#define TIOCGSID _IOR('T', 41, pid_t) /* Return the session ID of FD*/
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#define TCGETS2 _IOR('T', 42, struct termios2)
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#define TCSETS2 _IOW('T', 43, struct termios2)
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#define TCSETSW2 _IOW('T', 44, struct termios2)
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#define TCSETSF2 _IOW('T', 45, struct termios2)
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#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
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#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
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#define TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */
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#define TIOCSERCONFIG _IO('T', 83)
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#define TIOCSERGWILD _IOR('T', 84, int)
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#define TIOCSERSWILD _IOW('T', 85, int)
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#define TIOCGLCKTRMIOS 0x5456
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#define TIOCSLCKTRMIOS 0x5457
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#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
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#define TIOCSERGETLSR _IOR('T', 89, unsigned int) /* Get line status reg. */
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/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
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# define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
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#define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* Get multiport config */
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#define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* Set multiport config */
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#define TIOCMIWAIT _IO('T', 92) /* wait for a change on serial input line(s) */
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#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
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#endif /* _XTENSA_IOCTLS_H */
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