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26df6d1340
kernel_optimize_test/arch/s390/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For historical reference, a good copy of the relevant files can be found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
..
airq.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
appldata.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h [S390] atomic: implement atomic64_dec_if_positive 2010-05-26 23:26:29 +02:00
auxvec.h [S390] introduce vdso on s390 2008-12-25 13:38:55 +01:00
bitops.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h panic: Allow warnings to set different taint flags 2010-05-19 08:36:48 +01:00
bugs.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +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 Rename .data.read_mostly to .data..read_mostly. 2010-03-03 11:26:00 +01:00
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
ccwdev.h [S390] cio: unit check handling during internal I/O 2010-05-26 23:27:09 +02:00
ccwgroup.h [S390] pm: ccwgroup bus power management callbacks 2009-06-16 10:31:08 +02:00
checksum.h [S390] convert/optimize csum_fold() to C 2009-09-11 10:29:43 +02:00
chpid.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
chsc.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
cio.h tree-wide: Assorted spelling fixes 2010-02-09 11:13:56 +01:00
cmb.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
compat.h improve sys_newuname() for compat architectures 2010-03-12 15:52:32 -08:00
cpcmd.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
cpu.h [S390] Get rid of cpuid.h header file. 2009-09-11 10:29:56 +02:00
cputime.h [S390] idle time accounting vs. machine checks 2010-05-17 10:00:15 +02:00
crw.h [S390] cio: wait for channel report 2010-02-26 22:37:29 +01:00
current.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
dasd.h [S390] dasd: add large volume support 2009-03-26 15:24:05 +01:00
debug.h [S390] s390dbf: Add description for usage of "%s" in sprintf events 2009-09-11 10:29:53 +02:00
delay.h [S390] Provide arch specific mdelay implementation. 2009-10-06 10:35:08 +02:00
device.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
diag.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
div64.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
dma.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
ebcdic.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
errno.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
etr.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
extmem.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
fb.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
fcntl.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
fcx.h [S390] cio: update sac values 2008-12-25 13:39:06 +01:00
ftrace.h [S390] ftrace: add function graph tracer support 2009-06-12 10:27:39 +02:00
futex.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
hardirq.h [S390] remove unused irq_cpustat_t defintion 2009-09-11 10:29:48 +02:00
hugetlb.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
idals.h [S390] dasd: add High Performance FICON support 2009-03-26 15:24:05 +01:00
io.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
ioctl.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
ipl.h [S390] kernel: Append scpdata to kernel boot command line 2009-09-11 10:29:46 +02:00
irq_regs.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
irq.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
irqflags.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
isc.h [S390] zcrypt: Use of Thin Interrupts 2008-12-25 13:38:57 +01:00
itcw.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +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 [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
kexec.h kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
kprobes.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
kvm_host.h KVM: Remove unnecessary divide operations 2010-08-01 10:47:30 +03:00
kvm_para.h KVM: Add __KERNEL__ guards to exported headers 2009-09-10 10:46:48 +03:00
kvm_virtio.h [S390] kvm: use console_initcall() to initialize s390 virtio console 2009-09-11 10:29:52 +02:00
kvm.h KVM: s390: Make psw available on all exits, not just a subset 2009-12-03 09:32:25 +02:00
linkage.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
lowcore.h [S390] virtualization aware cpu measurement 2010-05-17 10:00:15 +02:00
mathemu.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu_context.h [S390] Improve address space mode selection. 2009-12-07 12:51:33 +01:00
mmu.h mm: provide init_mm mm_context initializer 2010-08-09 20:44:54 -07:00
module.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
monwriter.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
msgbuf.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
mutex.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
nmi.h [S390] split/move machine check handler code 2009-03-26 15:24:10 +01:00
page.h [S390] cio: fix storage key handling 2010-02-26 22:37:30 +01:00
param.h [S390] Have param.h simply include <asm-generic/param.h>. 2010-01-04 09:05:58 +01:00
pci.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
percpu.h s390: switch to dynamic percpu allocator 2009-06-24 15:13:53 +09:00
perf_event.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
pgalloc.h [S390] Improve address space mode selection. 2009-12-07 12:51:33 +01:00
pgtable.h [S390] increase default size of vmalloc area 2010-04-09 13:43:02 +02:00
poll.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
posix_types.h [S390] asm-s390/posix_types.h: drop __USE_ALL usage 2009-01-09 12:15:04 +01:00
processor.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
ptrace.h [S390] add breaking event address for user space 2010-05-17 10:00:15 +02:00
qdio.h [SCSI] zfcp: Enable data division support for FCP devices 2010-07-28 09:48:55 -05:00
qeth.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
reset.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
resource.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
rwsem.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
s390_ext.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
scatterlist.h asm-generic: remove ISA_DMA_THRESHOLD in scatterlist.h 2010-05-27 09:12:54 -07:00
schid.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
sclp.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
scsw.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
seccomp.h [S390] secure computing arch backend 2009-06-12 10:27:31 +02:00
sections.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
segment.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
sembuf.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
setup.h [S390] virtualization aware cpu measurement 2010-05-17 10:00:15 +02:00
sfp-machine.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
sfp-util.h Revert "endian: #define __BYTE_ORDER" 2010-05-26 08:30:15 -07:00
shmbuf.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
shmparam.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
sigcontext.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
siginfo.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
sigp.h [S390] spinlock: check virtual cpu running status 2010-02-26 22:37:31 +01:00
smp.h [S390] spinlock: check virtual cpu running status 2010-02-26 22:37:31 +01:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h [S390] use generic sockios.h header file 2009-12-07 12:51:37 +01:00
sparsemem.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
stat.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
statfs.h add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
string.h [S390] use compiler builtin versions of strlen/strcpy/strcat 2009-03-26 15:24:24 +01:00
suspend.h [S390] s390: hibernation support for s390 2009-06-16 10:31:22 +02:00
swab.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
syscall.h tracing: Unify arch_syscall_addr() implementations 2010-02-17 13:07:21 +01:00
sysinfo.h [S390] sysinfo: fix SYSIB 3,2,2 structure 2010-02-26 22:37:31 +01:00
system.h [S390] improve irq tracing code in entry[64].S 2010-05-17 10:00:15 +02:00
tape390.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
termbits.h [S390] use generic termbits.h header file 2009-12-07 12:51:37 +01:00
termios.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
thread_info.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
timer.h [S390] extend virtual timer interface by mod_virt_timer_periodic 2009-04-14 15:37:23 +02:00
timex.h [S390] s390_hypfs: Add new attributes 2010-05-17 10:00:17 +02:00
tlb.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
tlbflush.h [S390] cpumask: use mm_cpumask() wrapper 2009-03-26 15:24:34 +01:00
topology.h [S390] topology: expose core identifier 2010-05-17 10:00:16 +02:00
types.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
uaccess.h [S390] uaccess: implement strict user copy checks 2010-02-26 22:37:29 +01:00
ucontext.h [S390] 64-bit register support for 31-bit processes 2009-10-06 10:35:10 +02:00
unaligned.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
unistd.h Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
user.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
vdso.h [S390] vdso: use ntp adjusted clock multiplier 2010-04-22 17:17:19 +02:00
vtoc.h [S390] dasd: add large volume support 2009-03-26 15:24:05 +01:00
xor.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00
zcrypt.h [S390] move include/asm-s390 to arch/s390/include/asm 2008-08-01 20:42:05 +02:00