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26df6d1340
linux/arch/frv/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For historical reference, a good copy of the relevant files can be found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
..
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h atomic_t: Cast to volatile when accessing atomic variables 2010-05-17 07:57:27 -07:00
auxvec.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
ax88796.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
bitops.h FRV: bitops: Change the bitmap index from int to unsigned long 2009-06-11 09:01:26 -07:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h FRV: Stop gcc from generating uninitialised variable warnings after BUG() 2009-04-27 08:04:49 -07:00
bugs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
busctl-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
byteorder.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
cache.h FRV: ARCH_KMALLOC_MINALIGN was already defined 2010-05-28 10:17:21 -07:00
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 FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
cpu-irqs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
cpumask.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
cputime.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
current.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
delay.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
device.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
div64.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
dm9000.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
dma-mapping.h dma-mapping: frv: remove the obsolete and unnecessary DMA API comments 2010-03-12 15:52:42 -08:00
dma.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
errno.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
fb.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
fcntl.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
fpu.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
ftrace.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
futex.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
gdb-stub.h frv: extend gdbstub to support more features of gdb 2010-05-25 08:07:02 -07:00
gpio-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
hardirq.h FRV: Use asm/generic-hardirq.h 2009-09-23 10:15:21 -07:00
highmem.h kmap_atomic: make kunmap_atomic() harder to misuse 2010-08-09 20:44:54 -07:00
hw_irq.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
io.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
ioctl.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
irc-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
irq_regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
irq.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
Kbuild FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
kdebug.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
kmap_types.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
linkage.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
local.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
math-emu.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb86943a.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb93091-fpga-irqs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb93093-fpga-irqs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb93493-irqs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mb93493-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mc146818rtc.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mem-layout.h FRV: ARCH_KMALLOC_MINALIGN was already defined 2010-05-28 10:17:21 -07:00
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu_context.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mmu.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
module.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
msgbuf.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
mutex.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
page.h FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stack 2010-01-06 18:16:02 -08:00
param.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
pci.h pci-dma: add linux/pci-dma.h to linux/pci.h 2010-03-12 15:52:42 -08:00
percpu.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
perf_event.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
pgalloc.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -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
poll.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
posix_types.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
processor.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
ptrace.h ptrace: move user_enable_single_step & co prototypes to linux/ptrace.h 2010-03-12 15:52:38 -08:00
registers.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
resource.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
scatterlist.h frv: use asm-generic/scatterlist.h 2010-05-27 09:12:55 -07:00
sections.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
segment.h frv: fix kernel/user segment handling in NOMMU mode 2010-04-07 08:38:05 -07:00
sembuf.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
serial-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
serial.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
setup.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
shmbuf.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
shmparam.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
sigcontext.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
siginfo.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
signal.h FRV: Fix interaction with new generic header stuff 2009-06-13 13:17:28 -07:00
smp.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
spinlock.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
spr-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
stat.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
statfs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
string.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
suspend.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
swab.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
syscall.h FRV: Implement new-style ptrace 2009-06-11 09:01:26 -07:00
system.h FRV: Implement atomic64_t 2009-07-01 19:38:09 -07:00
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
timer-regs.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
timex.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
tlb.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
tlbflush.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
topology.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
types.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
uaccess.h frv: fix kernel/user segment handling in NOMMU mode 2010-04-07 08:38:05 -07:00
ucontext.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
unaligned.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
unistd.h Add generic sys_ipc wrapper 2010-03-12 15:52:32 -08:00
user.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
vga.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
virtconvert.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00
xor.h FRV: Move to arch/frv/include/asm/ 2009-04-10 01:48:06 +01:00