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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For historical reference, a good copy of the relevant files can be found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>
267 lines
6.9 KiB
C
267 lines
6.9 KiB
C
#ifndef _SPARC_TERMBITS_H
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#define _SPARC_TERMBITS_H
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#include <linux/posix_types.h>
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typedef unsigned char cc_t;
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typedef unsigned int speed_t;
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#if defined(__sparc__) && defined(__arch64__)
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typedef unsigned int tcflag_t;
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#else
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typedef unsigned long tcflag_t;
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#endif
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#define NCC 8
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struct termio {
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unsigned short c_iflag; /* input mode flags */
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unsigned short c_oflag; /* output mode flags */
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unsigned short c_cflag; /* control mode flags */
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unsigned short c_lflag; /* local mode flags */
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unsigned char c_line; /* line discipline */
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unsigned char c_cc[NCC]; /* control characters */
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};
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#define NCCS 17
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struct termios {
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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cc_t c_line; /* line discipline */
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#ifndef __KERNEL__
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cc_t c_cc[NCCS]; /* control characters */
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#else
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cc_t c_cc[NCCS+2]; /* kernel needs 2 more to hold vmin/vtime */
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#define SIZEOF_USER_TERMIOS sizeof (struct termios) - (2*sizeof (cc_t))
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#endif
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};
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struct termios2 {
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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cc_t c_line; /* line discipline */
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cc_t c_cc[NCCS+2]; /* control characters */
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speed_t c_ispeed; /* input speed */
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speed_t c_ospeed; /* output speed */
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};
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struct ktermios {
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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cc_t c_line; /* line discipline */
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cc_t c_cc[NCCS+2]; /* control characters */
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speed_t c_ispeed; /* input speed */
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speed_t c_ospeed; /* output speed */
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};
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/* c_cc characters */
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#define VINTR 0
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#define VQUIT 1
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#define VERASE 2
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#define VKILL 3
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#define VEOF 4
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#define VEOL 5
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#define VEOL2 6
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#define VSWTC 7
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#define VSTART 8
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#define VSTOP 9
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#define VSUSP 10
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#define VDSUSP 11 /* SunOS POSIX nicety I do believe... */
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#define VREPRINT 12
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#define VDISCARD 13
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#define VWERASE 14
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#define VLNEXT 15
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/* Kernel keeps vmin/vtime separated, user apps assume vmin/vtime is
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* shared with eof/eol
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*/
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#ifdef __KERNEL__
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#define VMIN 16
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#define VTIME 17
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#else
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#define VMIN VEOF
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#define VTIME VEOL
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#endif
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/* c_iflag bits */
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#define IGNBRK 0x00000001
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#define BRKINT 0x00000002
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#define IGNPAR 0x00000004
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#define PARMRK 0x00000008
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#define INPCK 0x00000010
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#define ISTRIP 0x00000020
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#define INLCR 0x00000040
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#define IGNCR 0x00000080
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#define ICRNL 0x00000100
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#define IUCLC 0x00000200
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#define IXON 0x00000400
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#define IXANY 0x00000800
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#define IXOFF 0x00001000
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#define IMAXBEL 0x00002000
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#define IUTF8 0x00004000
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/* c_oflag bits */
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#define OPOST 0x00000001
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#define OLCUC 0x00000002
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#define ONLCR 0x00000004
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#define OCRNL 0x00000008
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#define ONOCR 0x00000010
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#define ONLRET 0x00000020
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#define OFILL 0x00000040
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#define OFDEL 0x00000080
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#define NLDLY 0x00000100
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#define NL0 0x00000000
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#define NL1 0x00000100
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#define CRDLY 0x00000600
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#define CR0 0x00000000
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#define CR1 0x00000200
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#define CR2 0x00000400
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#define CR3 0x00000600
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#define TABDLY 0x00001800
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#define TAB0 0x00000000
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#define TAB1 0x00000800
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#define TAB2 0x00001000
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#define TAB3 0x00001800
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#define XTABS 0x00001800
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#define BSDLY 0x00002000
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#define BS0 0x00000000
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#define BS1 0x00002000
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#define VTDLY 0x00004000
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#define VT0 0x00000000
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#define VT1 0x00004000
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#define FFDLY 0x00008000
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#define FF0 0x00000000
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#define FF1 0x00008000
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#define PAGEOUT 0x00010000 /* SUNOS specific */
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#define WRAP 0x00020000 /* SUNOS specific */
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/* c_cflag bit meaning */
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#define CBAUD 0x0000100f
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#define B0 0x00000000 /* hang up */
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#define B50 0x00000001
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#define B75 0x00000002
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#define B110 0x00000003
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#define B134 0x00000004
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#define B150 0x00000005
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#define B200 0x00000006
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#define B300 0x00000007
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#define B600 0x00000008
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#define B1200 0x00000009
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#define B1800 0x0000000a
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#define B2400 0x0000000b
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#define B4800 0x0000000c
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#define B9600 0x0000000d
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#define B19200 0x0000000e
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#define B38400 0x0000000f
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#define EXTA B19200
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#define EXTB B38400
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#define CSIZE 0x00000030
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#define CS5 0x00000000
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#define CS6 0x00000010
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#define CS7 0x00000020
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#define CS8 0x00000030
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#define CSTOPB 0x00000040
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#define CREAD 0x00000080
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#define PARENB 0x00000100
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#define PARODD 0x00000200
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#define HUPCL 0x00000400
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#define CLOCAL 0x00000800
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#define CBAUDEX 0x00001000
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/* We'll never see these speeds with the Zilogs, but for completeness... */
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#define BOTHER 0x00001000
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#define B57600 0x00001001
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#define B115200 0x00001002
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#define B230400 0x00001003
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#define B460800 0x00001004
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/* This is what we can do with the Zilogs. */
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#define B76800 0x00001005
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/* This is what we can do with the SAB82532. */
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#define B153600 0x00001006
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#define B307200 0x00001007
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#define B614400 0x00001008
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#define B921600 0x00001009
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/* And these are the rest... */
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#define B500000 0x0000100a
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#define B576000 0x0000100b
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#define B1000000 0x0000100c
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#define B1152000 0x0000100d
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#define B1500000 0x0000100e
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#define B2000000 0x0000100f
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/* These have totally bogus values and nobody uses them
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so far. Later on we'd have to use say 0x10000x and
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adjust CBAUD constant and drivers accordingly.
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#define B2500000 0x00001010
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#define B3000000 0x00001011
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#define B3500000 0x00001012
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#define B4000000 0x00001013 */
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#define CIBAUD 0x100f0000 /* input baud rate (not used) */
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#define CMSPAR 0x40000000 /* mark or space (stick) parity */
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#define CRTSCTS 0x80000000 /* flow control */
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#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
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/* c_lflag bits */
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#define ISIG 0x00000001
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#define ICANON 0x00000002
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#define XCASE 0x00000004
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#define ECHO 0x00000008
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#define ECHOE 0x00000010
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#define ECHOK 0x00000020
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#define ECHONL 0x00000040
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#define NOFLSH 0x00000080
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#define TOSTOP 0x00000100
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#define ECHOCTL 0x00000200
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#define ECHOPRT 0x00000400
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#define ECHOKE 0x00000800
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#define DEFECHO 0x00001000 /* SUNOS thing, what is it? */
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#define FLUSHO 0x00002000
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#define PENDIN 0x00004000
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#define IEXTEN 0x00008000
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#define EXTPROC 0x00010000
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/* modem lines */
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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 TIOCM_OUT1 0x2000
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#define TIOCM_OUT2 0x4000
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#define TIOCM_LOOP 0x8000
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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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/* tcflow() and TCXONC use these */
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#define TCOOFF 0
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#define TCOON 1
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#define TCIOFF 2
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#define TCION 3
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/* tcflush() and TCFLSH use these */
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#define TCIFLUSH 0
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#define TCOFLUSH 1
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#define TCIOFLUSH 2
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/* tcsetattr uses these */
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#define TCSANOW 0
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#define TCSADRAIN 1
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#define TCSAFLUSH 2
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#endif /* !(_SPARC_TERMBITS_H) */
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