linux_dsm_epyc7002/arch/xtensa/include/asm
hyc@symas.com 26df6d1340 tty: Add EXTPROC support for LINEMODE
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For historical reference, a good copy of the relevant files can be found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>
2010-08-10 13:47:39 -07:00
..
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asmmacro.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
atomic.h atomic_t: Cast to volatile when accessing atomic variables 2010-05-17 07:57:27 -07:00
auxvec.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
bitops.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6 2009-01-07 11:56:29 -08:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bootparam.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
bug.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
bugs.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h xtensa: set ARCH_KMALLOC_MINALIGN 2010-05-25 08:06:56 -07:00
cacheasm.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
cacheflush.h xtensa: Fix FLUSH_DCACHE macro for some variants. 2010-05-01 22:55:21 -07:00
checksum.h xtensa: Fix checksum header file 2009-05-11 21:48:23 -07:00
coprocessor.h xtensa: Add missing include in coprocessor.h 2010-05-03 01:06:43 -07:00
cpumask.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
cputime.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
current.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
delay.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
device.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
div64.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
dma-mapping.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
dma.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
elf.h xtensa: Shuffle include statements to fix linker script 2010-05-02 01:05:13 -07:00
emergency-restart.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
errno.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
fb.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
fcntl.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
flat.h xtensa: add flat support 2009-04-02 23:41:29 -07:00
ftrace.h tracing: make CALLER_ADDRx overwriteable 2009-03-02 16:49:37 -05:00
futex.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
gpio.h xtensa: support s6000 gpio irqs and alternate function selection 2009-06-22 02:37:26 -07:00
hardirq.h xtensa: convert to asm-generic/hardirq.h 2010-05-25 08:06:56 -07:00
highmem.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
hw_irq.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
io.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
ioctl.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
irq_regs.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
irq.h xtensa: allow variant to initialize own irq chips 2009-06-22 02:36:59 -07:00
Kbuild byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
kdebug.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
linkage.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
mman.h mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions 2009-09-22 07:17:41 -07:00
mmu_context.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
mmu.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
module.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
msgbuf.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
mutex.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
nommu_context.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
nommu.h xtensa: nommu support 2009-04-02 23:41:50 -07:00
page.h asm-generic: rename page.h and uaccess.h 2009-06-11 21:02:17 +02:00
param.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
pci-bridge.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
pci.h pci-dma: add linux/pci-dma.h to linux/pci.h 2010-03-12 15:52:42 -08:00
percpu.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
pgalloc.h xtensa: Shuffle include statements to fix linker script 2010-05-02 01:05:13 -07:00
pgtable.h MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
platform.h xtensa: remove platform rtc hooks 2009-04-02 23:45:07 -07:00
poll.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
posix_types.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
processor.h xtensa: Shuffle include statements to fix linker script 2010-05-02 01:05:13 -07:00
ptrace.h xtensa: Shuffle include statements to fix linker script 2010-05-02 01:05:13 -07:00
regs.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
resource.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
rmap.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
rwsem.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
scatterlist.h xtensa: use use asm-generic/scatterlist.h 2010-05-27 09:12:55 -07:00
sections.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
segment.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
sembuf.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
serial.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
setup.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
shmbuf.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
shmparam.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
sigcontext.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
siginfo.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
signal.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
smp.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
spinlock.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
stat.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
statfs.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
string.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
swab.h headers_check fix: xtensa, swab.h 2009-02-01 11:01:30 +05:30
syscall.h sanitize do_pipe_flags() callers in arch 2009-12-16 12:16:40 -05:00
system.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
thread_info.h add descriptive comment for TIF_MEMDIE task flag declaration. 2010-05-14 11:13:27 +02:00
timex.h xtensa: fix wrong extern declaration renamed in code using it 2009-05-11 22:00:11 -07:00
tlb.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
tlbflush.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
topology.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
types.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
uaccess.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
ucontext.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
unaligned.h xtensa: switch to packed struct unaligned access implementation 2008-11-11 06:14:10 -08:00
unistd.h sanitize do_pipe_flags() callers in arch 2009-12-16 12:16:40 -05:00
user.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
vga.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00
xor.h xtensa: move headers files to arch/xtensa/include 2008-11-06 10:25:09 -08:00