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26df6d1340
android_kernel_xiaomi_sdm845/arch/m32r/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For historical reference, a good copy of the relevant files can be found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
..
m32104ut m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
m32700ut m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mappi2 m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mappi3 m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
opsput m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
addrspace.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
assembler.h m32r: use __stringify() macro in assembler.h 2009-05-02 22:38:21 +09:00
atomic.h atomic_t: Cast to volatile when accessing atomic variables 2010-05-17 07:57:27 -07:00
auxvec.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
bitops.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
bugs.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
byteorder.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
cache.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
cachectl.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
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 m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
cputime.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
current.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
delay.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
device.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
div64.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
dma.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
errno.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
fb.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
fcntl.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
flat.h flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
ftrace.h m32r: move include/asm-m32r/* to arch/m32r/include/asm/ 2009-04-17 10:50:23 +09:00
futex.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
hardirq.h m32r: convert to asm-generic/hardirq.h 2009-09-22 07:17:43 -07:00
hw_irq.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
io.h m32r: define ioread* and iowrite* macros 2009-10-04 12:02:36 +09:00
ioctl.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
irq_regs.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
irq.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
Kbuild m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
kdebug.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
linkage.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h local_t: Remove cpu_local_xx macros 2010-01-05 15:34:49 +09:00
m32r_mp_fpga.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
m32r.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
m32102.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mc146818rtc.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu_context.h cpumask: use mm_cpumask() wrapper: m32r 2009-09-24 09:34:50 +09:30
mmu.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mmzone.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
module.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
msgbuf.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
mutex.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
page.h m32r: make PAGE_SIZE available to assembly. 2009-09-23 00:29:38 +09:00
param.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
pci.h asm-generic: make pci.h usable directly 2009-06-11 21:02:22 +02:00
percpu.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
pgalloc.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
pgtable-2level.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
pgtable.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
poll.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
posix_types.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
processor.h m32r: Define THREAD_SIZE only once. 2009-09-23 00:29:38 +09:00
ptrace.h m32r: use generic ptrace_resume code 2010-03-12 15:52:39 -08:00
resource.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
rtc.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
s1d13806.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
scatterlist.h m32r: use use asm-generic/scatterlist.h 2010-05-27 09:12:55 -07:00
sections.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
segment.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
sembuf.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
serial.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
setup.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
shmbuf.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
shmparam.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
sigcontext.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
siginfo.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
smp.h cpumask: remove arch_send_call_function_ipi 2009-09-24 09:34:47 +09:30
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h locking: Convert raw_rwlock functions to arch_rwlock 2009-12-14 23:55:32 +01:00
stat.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
statfs.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
string.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
swab.h m32r: move include/asm-m32r/* to arch/m32r/include/asm/ 2009-04-17 10:50:23 +09:00
syscall.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
system.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
thread_info.h add descriptive comment for TIF_MEMDIE task flag declaration. 2010-05-14 11:13:27 +02:00
timex.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
tlb.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
tlbflush.h MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
topology.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
types.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
uaccess.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
ucontext.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
unaligned.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
unistd.h Add generic sys_ipc wrapper 2010-03-12 15:52:32 -08:00
user.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
vga.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00
xor.h m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17 10:05:01 +09:00