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26df6d1340
linux/arch/avr32/include/asm
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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For historical reference, a good copy of the relevant files can be found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
..
mach avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
addrspace.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asm.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
atomic.h atomic_t: Cast to volatile when accessing atomic variables 2010-05-17 07:57:27 -07:00
auxvec.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
bitops.h avr32: define __fls 2009-01-01 10:12:16 +10:30
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h avr32: Convert BUG() to use unreachable() 2009-12-05 09:10:12 -08:00
bugs.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
cachectl.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
cacheflush.h block: add helpers to run flush_dcache_page() against a bio and a request's pages 2009-11-26 09:16:19 +01:00
checksum.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
cputime.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
current.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
delay.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
device.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
div64.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
dma-mapping.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
dma.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
errno.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
fb.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
fcntl.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
ftrace.h tracing: make CALLER_ADDRx overwriteable 2009-03-02 16:49:37 -05:00
futex.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
gpio.h avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> 2008-08-05 14:36:57 +02:00
hardirq.h avr32: convert to asm-generic/hardirq.h 2009-12-14 19:24:28 +01:00
hw_irq.h avr32: remove obsolete hw_interrupt_type 2009-05-13 16:53:48 +02:00
io.h avr32: Implement {read,write}[bwl]_be 2008-10-08 18:44:57 +02:00
ioctl.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
irq_regs.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
irq.h avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> 2008-08-05 14:36:57 +02:00
irqflags.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
Kbuild byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
kdebug.h avr32: Define DIE_OOPS 2009-01-07 10:40:30 +01:00
kmap_types.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
kprobes.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
linkage.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu_context.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
mmu.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
module.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
msgbuf.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
mutex.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
numnodes.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
ocd.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
page.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
param.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
pci.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
percpu.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
pgalloc.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
pgtable-2level.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
pgtable.h MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
poll.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
posix_types.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
processor.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
ptrace.h avr32: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
resource.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
scatterlist.h avr32: use asm-generic/scatterlist.h 2010-05-27 09:12:54 -07:00
sections.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
sembuf.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
serial.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
setup.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
shmbuf.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
shmparam.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
sigcontext.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
siginfo.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
stat.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
statfs.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
string.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
swab.h headers_check fix: avr32, swab.h 2009-02-01 11:01:23 +05:30
syscalls.h Unify sys_mmap* 2009-12-11 06:44:29 -05:00
sysreg.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
system.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
thread_info.h add descriptive comment for TIF_MEMDIE task flag declaration. 2010-05-14 11:13:27 +02:00
timex.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
tlb.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
tlbflush.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
topology.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
traps.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
types.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
uaccess.h avr32: fix out-of-range rjmp instruction on large kernels 2009-01-16 09:38:05 +01:00
ucontext.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
unaligned.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
unistd.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
user.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00
xor.h avr32: Move include/asm-avr32 to arch/avr32/include/asm 2008-08-05 13:35:07 +02:00