kernel-fxtec-pro1x/include
Eric W. Biederman 98a27ba485 tty: introduce no_tty and use it in selinux
While researching the tty layer pid leaks I found a weird case in selinux when
we drop a controlling tty because of inadequate permissions we don't do the
normal hangup processing.  Which is a problem if it happens the session leader
has exec'd something that can no longer access the tty.

We already have code in the kernel to handle this case in the form of the
TIOCNOTTY ioctl.  So this patch factors out a helper function that is the
essence of that ioctl and calls it from the selinux code.

This removes the inconsistency in handling dropping of a controlling tty and
who knows it might even make some part of user space happy because it received
a SIGHUP it was expecting.

In addition since this removes the last user of proc_set_tty outside of
tty_io.c proc_set_tty is made static and removed from tty.h

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:04 -07:00
..
acpi remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
asm-alpha ALPHA: "prctl" macros 2007-05-07 12:12:58 -07:00
asm-arm Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-06 13:20:10 -07:00
asm-arm26 [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
asm-avr32 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-blackfin blackfin architecture 2007-05-07 12:12:58 -07:00
asm-cris [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
asm-frv kconfig: centralize the selection of semaphore debugging in lib/Kconfig.debug 2007-05-08 11:15:00 -07:00
asm-generic [PATCH] i386: Clean up ELF note generation 2007-05-02 19:27:17 +02:00
asm-h8300 h8300 generic irq 2007-05-07 12:12:58 -07:00
asm-i386 tty: i386/x86_64 arbitary speed support 2007-05-08 11:15:03 -07:00
asm-ia64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2007-05-07 12:34:57 -07:00
asm-m32r Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-m68k Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-m68knommu Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-mips Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-parisc Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-powerpc Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-ppc [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
asm-s390 Introduce CONFIG_HAS_DMA 2007-05-07 12:12:51 -07:00
asm-sh sh: R7785RP board updates. 2007-05-07 02:11:57 +00:00
asm-sh64 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-sparc [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
asm-sparc64 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-05-07 12:22:48 -07:00
asm-um uml: more page fault path trimming 2007-05-07 12:13:04 -07:00
asm-v850 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
asm-x86_64 tty: i386/x86_64 arbitary speed support 2007-05-08 11:15:03 -07:00
asm-xtensa Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
crypto [CRYPTO] cryptd: Add software async crypto daemon 2007-05-02 14:38:32 +10:00
keys
linux tty: introduce no_tty and use it in selinux 2007-05-08 11:15:04 -07:00
math-emu
media i2c: Cleanup the includes of <linux/i2c.h> 2007-05-01 23:26:29 +02:00
mtd
net [MAC80211]: Add mac80211 wireless stack. 2007-05-05 11:45:53 -07:00
pcmcia add new_id to PCMCIA drivers 2007-05-07 12:12:50 -07:00
rdma Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2007-05-07 12:18:21 -07:00
rxrpc
scsi
sound
video
Kbuild