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26df6d1340
linux-next/arch/alpha/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For historical reference, a good copy of the relevant files can be found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
..
8253pit.h time: move PIT_TICK_RATE to linux/timex.h 2009-06-16 19:47:27 -07:00
a.out-core.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
a.out.h alpha: introduce field 'taso' into struct linux_binprm 2008-10-16 11:21:38 -07:00
agp_backend.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
agp.h agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
barrier.h alpha: futex implementation 2009-05-02 15:36:10 -07:00
bitops.h alpha: fix __arch_hweight32 typo 2010-06-15 14:19:07 -04:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h alpha: Convert BUG() to use unreachable() 2009-12-18 01:14:52 -05:00
bugs.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
compiler.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
console.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_apecs.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_cia.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_irongate.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_lca.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_marvel.h alpha: fix compile errors in dma-mapping-common.h 2010-03-18 22:35:28 -04:00
core_mcpcia.h alpha: fix compile errors in dma-mapping-common.h 2010-03-18 22:35:28 -04:00
core_polaris.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
core_t2.h alpha: Fix fallout from locking changes 2009-12-14 23:55:32 +01:00
core_titan.h alpha: fix compile errors in dma-mapping-common.h 2010-03-18 22:35:28 -04:00
core_tsunami.h alpha: fix compile errors in dma-mapping-common.h 2010-03-18 22:35:28 -04:00
core_wildfire.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
cputime.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
current.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
delay.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
device.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
div64.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
dma-mapping.h dma-mapping: alpha: use include/linux/pci-dma-compat.h 2010-03-12 15:52:42 -08:00
dma.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
err_common.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
err_ev6.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
err_ev7.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
errno.h cfg80211: errno.h: define ERFKILL 2009-06-07 05:01:00 -07:00
fb.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
fcntl.h fix up O_SYNC comments 2009-12-17 11:03:24 -05:00
floppy.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
fpu.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
ftrace.h tracing: make CALLER_ADDRx overwriteable 2009-03-02 16:49:37 -05:00
futex.h alpha: futex implementation 2009-05-02 15:36:10 -07:00
gct.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
gentrap.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
hardirq.h alpha: convert to asm-generic/hardirq.h 2009-09-22 07:17:43 -07:00
hw_irq.h alpha: add performance monitor interrupt counter 2010-08-09 20:45:03 -07:00
hwrpb.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
io_trivial.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
io.h alpha: remove dead BIO_VMERGE_BOUNDARY 2008-12-29 08:29:51 +01:00
ioctl.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
irq_regs.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
irq.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
jensen.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
linkage.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
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
machvec.h alpha: convert u64 to unsigned long long 2009-04-01 08:59:16 -07:00
mc146818rtc.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
mman.h mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions 2009-09-22 07:17:41 -07:00
mmu_context.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
mmu.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
mmzone.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
module.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
msgbuf.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
mutex.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
page.h asm-generic: rename page.h and uaccess.h 2009-06-11 21:02:17 +02:00
pal.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
param.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
parport.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
pci.h dma-mapping: alpha: use include/linux/pci-dma-compat.h 2010-03-12 15:52:42 -08:00
percpu.h alpha: fix percpu build breakage 2009-06-30 18:55:59 -07:00
perf_event.h alpha: implement HW performance events on the EV67 and later CPUs 2010-08-09 20:45:04 -07:00
pgalloc.h alpha: make pte_alloc_one_kernel() inline 2009-01-15 16:39:40 -08:00
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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
posix_types.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
processor.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
ptrace.h alpha: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
reg.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
regdef.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
resource.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
rtc.h alpha: fix RTC on marvel 2009-01-15 16:39:40 -08:00
rwsem.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
scatterlist.h asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h 2010-05-27 09:12:54 -07:00
sections.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
segment.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
sembuf.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
serial.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
setup.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
sfp-machine.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
shmbuf.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
shmparam.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
sigcontext.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
siginfo.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
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 alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
statfs.h headers_check fix: alpha, statfs.h 2009-02-01 11:01:22 +05:30
string.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
swab.h headers_check fix: alpha, swab.h 2009-02-01 11:01:22 +05:30
sysinfo.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
system.h alpha: xchg/cmpxchg cleanup and fixes 2009-04-01 08:59:16 -07:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
thread_info.h add descriptive comment for TIF_MEMDIE task flag declaration. 2010-05-14 11:13:27 +02:00
timex.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -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 alpha: switch to dynamic percpu allocator 2009-06-24 15:13:52 +09:00
topology.h alpha: cpumask_of_node() should handle -1 as a node 2010-01-14 13:21:35 -05:00
types.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
uaccess.h alpha: exception table sorting 2009-05-02 15:36:10 -07:00
ucontext.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
unaligned.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
unistd.h alpha: Add minimal support for software performance events 2009-12-18 01:11:30 -05:00
user.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
vga.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
wrperfmon.h alpha: add wrperfmon.h header file to aid use of wrperfmon PALcall 2010-08-09 20:45:04 -07:00
xchg.h alpha: xchg/cmpxchg cleanup and fixes 2009-04-01 08:59:16 -07:00
xor.h alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00