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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>		18 years ago
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acpi	…
asm-alpha	ALPHA: "prctl" macros	18 years ago
asm-arm	…
asm-arm26	…
asm-avr32	…
asm-blackfin	blackfin architecture	18 years ago
asm-cris	…
asm-frv	kconfig: centralize the selection of semaphore debugging in lib/Kconfig.debug	18 years ago
asm-generic	…
asm-h8300	h8300 generic irq	18 years ago
asm-i386	tty: i386/x86_64 arbitary speed support	18 years ago
asm-ia64	Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	18 years ago
asm-m32r	…
asm-m68k	…
asm-m68knommu	…
asm-mips	…
asm-parisc	…
asm-powerpc	…
asm-ppc	…
asm-s390	Introduce CONFIG_HAS_DMA	18 years ago
asm-sh	sh: R7785RP board updates.	18 years ago
asm-sh64	…
asm-sparc	…
asm-sparc64	Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6	18 years ago
asm-um	uml: more page fault path trimming	18 years ago
asm-v850	…
asm-x86_64	tty: i386/x86_64 arbitary speed support	18 years ago
asm-xtensa	…
crypto	…
keys	…
linux	tty: introduce no_tty and use it in selinux	18 years ago
math-emu	…
media	…
mtd	…
net	…
pcmcia	add new_id to PCMCIA drivers	18 years ago
rdma	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband	18 years ago
rxrpc	…
scsi	…
sound	…
video	…
Kbuild	…