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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 For historical reference, a good copy of the relevant files can be found here: http://anonsvn.mit.edu/viewvc/krb5/trunk/src/appl/telnet/?pathrev=17741 Signed-off-by: Howard Chu 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>		15 years ago
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9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
adfs	check ATTR_SIZE contraints in inode_change_ok	15 years ago
affs	AFFS: wait for sb synchronization when needed	15 years ago
afs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
autofs	fs/: do not fallback to default_llseek() when readdir() uses BKL	15 years ago
autofs4	fs/autofs4: use memdup_user	15 years ago
befs	fix typos concerning "initiali[zs]e"	15 years ago
bfs	BFS: clean up the superblock usage	15 years ago
btrfs	btrfs: remove junk sb_dirt change	15 years ago
cachefiles	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ceph	ceph: use complete_all and wake_up_all	15 years ago
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
coda	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
configfs	fix setattr error handling in sysfs, configfs	15 years ago
cramfs	simplify get_cramfs_inode()	15 years ago
debugfs	…
devpts	Simplify devpts_get_sb() failure exits	15 years ago
dlm	fs/dlm: Drop unnecessary null test	15 years ago
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
efs	…
exofs	convert exofs to ->evict_inode()	15 years ago
exportfs	…
ext2	mbcache: Remove unused features	15 years ago
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fat	covert fatfs to ->evict_inode()	15 years ago
freevxfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fscache	fscache: fix build on !CONFIG_SYSCTL	15 years ago
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
hfs	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
hfsplus	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
hostfs	try to get rid of races in hostfs open()	15 years ago
hpfs	switch hpfs to ->evict_inode()	15 years ago
hppfs	switch hppfs to ->evict_inode()	15 years ago
hugetlbfs	new helper: end_writeback()	15 years ago
isofs	fs/: do not fallback to default_llseek() when readdir() uses BKL	15 years ago
jbd	ext3: Fix set but unused variables	15 years ago
jbd2	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	15 years ago
jffs2	Merge git://git.infradead.org/mtd-2.6	15 years ago
jfs	switch jfs to ->evict_inode()	15 years ago
lockd	…
logfs	Make ->drop_inode() just return whether inode needs to be dropped	15 years ago
minix	switch minix to ->evict_inode(), fix write_inode/delete_inode race	15 years ago
ncpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
nfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
nfs_common	…
nfsd	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
nls	…
notify	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
ntfs	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
ocfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs	15 years ago
openpromfs	…
partitions	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	15 years ago
proc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
qnx4	get rid of cont_write_begin_newtrunc	15 years ago
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ramfs	check ATTR_SIZE contraints in inode_change_ok	15 years ago
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
romfs	…
smbfs	switch smbfs to evict_inode()	15 years ago
squashfs	squashfs: fix name reading in squashfs_xattr_get	15 years ago
sysfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
sysv	sysv: do not mark superblock dirty on remount	15 years ago
ubifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ufs	switch ufs to ->evict_inode()	15 years ago
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
Kconfig	fs/Kconfig: Fix typo Userpace -> Userspace	15 years ago
Kconfig.binfmt	…
Makefile	Take statfs variants to fs/statfs.c	15 years ago
aio.c	aio: fix wrong subsystem comments	15 years ago
anon_inodes.c	Revert "anon_inode: set S_IFREG on the anon_inode"	15 years ago
attr.c	check ATTR_SIZE contraints in inode_change_ok	15 years ago
bad_inode.c	drop unused dentry argument to ->fsync	15 years ago
binfmt_aout.c	…
binfmt_elf.c	…
binfmt_elf_fdpic.c	binfmt_elf_fdpic: Fix clear_user() error handling	15 years ago
binfmt_em86.c	…
binfmt_flat.c	flat: tweak default stack alignment	15 years ago
binfmt_misc.c	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
binfmt_script.c	…
binfmt_som.c	…
bio-integrity.c	…
bio.c	…
block_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
buffer.c	get rid of block_write_begin_newtrunc	15 years ago
char_dev.c	Fix init ordering of /dev/console vs callers of modprobe	15 years ago
compat.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
compat_binfmt_elf.c	…
compat_ioctl.c	tty: Add EXTPROC support for LINEMODE	15 years ago
dcache.c	no need for list_for_each_entry_safe()/resetting with superblock list	15 years ago
dcookies.c	…
direct-io.c	sort out blockdev_direct_IO variants	15 years ago
drop_caches.c	simplify checks for I_CLEAR/I_FREEING	15 years ago
eventfd.c	…
eventpoll.c	…
exec.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
fcntl.c	fs/fcntl.c:kill_fasync_rcu() fa_lock must be IRQ-safe	15 years ago
fifo.c	…
file.c	fs: remove all rcu head initializations, except on_stack initializations	15 years ago
file_table.c	vfs/fsnotify: fsnotify_close can delay the final work in fput	15 years ago
filesystems.c	…
fs-writeback.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fs_struct.c	…
generic_acl.c	fs: xattr_handler table should be const	15 years ago
inode.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
internal.h	Bury __put_super_and_need_restart()	15 years ago
ioctl.c	Introduce freeze_super and thaw_super for the fsfreeze ioctl	15 years ago
ioprio.c	…
libfs.c	check ATTR_SIZE contraints in inode_change_ok	15 years ago
locks.c	…
mbcache.c	mbcache: fix shrinker function return value	15 years ago
mpage.c	…
namei.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
namespace.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
nfsctl.c	…
no-block.c	…
open.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
pipe.c	pipe: fix check in "set size" fcntl	15 years ago
pnode.c	…
pnode.h	…
posix_acl.c	…
read_write.c	fsnotify: pass a file instead of an inode to open, read, and write	15 years ago
read_write.h	…
readdir.c	vfs: fix warning: 'dirent' is used uninitialized in this function	15 years ago
select.c	…
seq_file.c	…
signalfd.c	…
splice.c	splice: check f_mode for seekable file	15 years ago
stack.c	…
stat.c	…
statfs.c	add f_flags to struct statfs(64)	15 years ago
super.c	no need for list_for_each_entry_safe()/resetting with superblock list	15 years ago
sync.c	get rid of file_fsync()	15 years ago
timerfd.c	…
utimes.c	…
xattr.c	fs: xattr_handler table should be const	15 years ago
xattr_acl.c	…