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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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agp	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	18 years ago
drm	Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6	18 years ago
hw_random	Use stop_machine_run in the Intel RNG driver	18 years ago
ip2	Fix bogus 'inline' in drivers/char/ip2/i2lib.c	18 years ago
ipmi	ipmi: add pci remove handling	18 years ago
mwave	[PATCH] mwave: interesting flags savings	18 years ago
pcmcia	PCI: Cleanup the includes of <linux/pci.h>	18 years ago
rio	rio: typo in bitwise AND expression.	18 years ago
tpm	tpm_infineon: add support for devices in mmio space	18 years ago
watchdog	PCI: Cleanup the includes of <linux/pci.h>	18 years ago
.gitignore	…
ChangeLog	…
Kconfig	rename TANBAC TB0219 config	18 years ago
Makefile	rename TANBAC TB0219 config	18 years ago
amiserial.c	[PATCH] CHAR-Amiserial: turn local_save_flags() + local_irq_disable() into local_irq_save()	18 years ago
apm-emulation.c	[APM] Add shared version of APM emulation	18 years ago
applicom.c	…
applicom.h	…
briq_panel.c	Revert "[POWERPC] Rename get_property to of_get_property: drivers"	18 years ago
cd1865.h	…
consolemap.c	[PATCH] getting rid of all casts of k[cmz]alloc() calls	18 years ago
cp437.uni	…
cs5535_gpio.c	[PATCH] struct path: convert char-drivers	18 years ago
cyclades.c	cyclades: remove custom types	18 years ago
decserial.c	[PATCH] dz: Fixes to make it work	18 years ago
defkeymap.c_shipped	…
defkeymap.map	…
digi1.h	…
digiFep1.h	…
digiPCI.h	…
ds1286.c	[CHAR] ds1286: Fix handling of seconds in RTC_ALM_SET ioctl.	18 years ago
ds1302.c	[PATCH] DS1302: local_irq_disable() is redundant after local_irq_save()	18 years ago
ds1620.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
dsp56k.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
dtlk.c	[PATCH] Char: timers cleanup	18 years ago
ec3104_keyb.c	…
efirtc.c	…
epca.c	[PATCH] char/epca.c: remove unused function	18 years ago
epca.h	…
epcaconfig.h	…
esp.c	[PATCH] tty: switch to ktermios	18 years ago
generic_nvram.c	[PATCH] mark struct file_operations const 3	18 years ago
generic_serial.c	[PATCH] generic_serial: fix decoding of baud rate	18 years ago
genrtc.c	WorkStruct: make allyesconfig	18 years ago
hangcheck-timer.c	[PATCH] time: x86_64: convert x86_64 to use GENERIC_TIME	18 years ago
hpet.c	[PATCH] sysctl: remove insert_at_head from register_sysctl	18 years ago
hvc_beat.c	[POWERPC] Celleb: hypervisor console driver	18 years ago
hvc_console.c	drivers/char/hvc_console.c: cleanups	18 years ago
hvc_console.h	…
hvc_iseries.c	[POWERPC] Rename get_property to of_get_property: partial drivers	18 years ago
hvc_rtas.c	…
hvc_vio.c	[POWERPC] Rename get_property to of_get_property: partial drivers	18 years ago
hvcs.c	[PATCH] tty: switch to ktermios	18 years ago
hvsi.c	[POWERPC] Rename get_property to of_get_property: partial drivers	18 years ago
i8k.c	…
ip27-rtc.c	…
isicom.c	[PATCH] Char: tty_wakeup cleanup	18 years ago
istallion.c	[PATCH] Char: tty_wakeup cleanup	18 years ago
keyboard.c	Input: keyboard handler - use printk_ratelimit()	18 years ago
lcd.c	[CHAR] lcd: Fix two warnings.	18 years ago
lcd.h	[MIPS] Add MTD device support for Cobalt	18 years ago
lp.c	[PATCH] getting rid of all casts of k[cmz]alloc() calls	18 years ago
mbcs.c	[PATCH] mark struct file_operations const 3	18 years ago
mbcs.h	…
mem.c	fix bogon in /dev/mem mmap'ing on nommu	18 years ago
misc.c	[PATCH] Correct misc_register return code handling in several drivers	18 years ago
mmtimer.c	[PATCH] Correct misc_register return code handling in several drivers	18 years ago
moxa.c	[PATCH] Char: moxa, pci probing	18 years ago
mspec.c	[PATCH] mark struct file_operations const 3	18 years ago
mxser.c	Char: mxser, fix TIOCMIWAIT	18 years ago
mxser.h	[PATCH] mxser: remove ambiguous redefinition of INIT_WORK	18 years ago
mxser_new.c	Char: mxser_new, fix TIOCMIWAIT	18 years ago
mxser_new.h	[PATCH] Char: mxser_new, upgrade to 1.9.15	18 years ago
n_hdlc.c	…
n_r3964.c	[PATCH] Char: timers cleanup	18 years ago
n_tty.c	[PATCH] tty: update the tty layer to work with struct pid	18 years ago
nsc_gpio.c	[PATCH] struct path: convert char-drivers	18 years ago
nvram.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
nwbutton.c	[PATCH] Char: timers cleanup	18 years ago
nwbutton.h	…
nwflash.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
pc8736x_gpio.c	…
ppdev.c	[PATCH] struct path: convert char-drivers	18 years ago
pty.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
random.c	[NET]: random functions can use nsec resolution instead of usec	18 years ago
raw.c	[PATCH] raw: don't allow the creation of a raw device with minor number 0	18 years ago
riscom8.c	[PATCH] Char: tty_wakeup cleanup	18 years ago
riscom8.h	…
riscom8_reg.h	…
rocket.c	rocket: remove modversions include	18 years ago
rocket.h	…
rocket_int.h	…
rtc.c	[PATCH] sysctl: remove insert_at_head from register_sysctl	18 years ago
scc.h	…
scx200_gpio.c	…
selection.c	…
ser_a2232.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
ser_a2232.h	…
ser_a2232fw.ax	…
ser_a2232fw.h	…
serial167.c	[PATCH] Char: serial167, cleanup	18 years ago
snsc.c	…
snsc.h	…
snsc_event.c	…
sonypi.c	sonypi: use mutex instead of semaphore	18 years ago
specialix.c	[PATCH] Char: timers cleanup	18 years ago
specialix_io8.h	…
stallion.c	[PATCH] Char: stallion, use dynamic dev	18 years ago
sx.c	[PATCH] sx: fix non-PCI build	18 years ago
sx.h	[PATCH] Char: sx, request regions	18 years ago
sxboards.h	…
sxwindow.h	…
synclink.c	drivers/char/synclink.c: check kmalloc() return value	18 years ago
synclink_gt.c	[PATCH] Char: timers cleanup	18 years ago
synclinkmp.c	[PATCH] Char: timers cleanup	18 years ago
sysrq.c	[PATCH] Add SysRq-Q to print timer_list debug info	18 years ago
tb0219.c	[PATCH] struct path: convert char-drivers	18 years ago
tipar.c	[PATCH] struct path: convert char-drivers	18 years ago
tlclk.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
toshiba.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
tty_io.c	tty: introduce no_tty and use it in selinux	18 years ago
tty_ioctl.c	[PATCH] tty: improve encode_baud_rate logic	18 years ago
vc_screen.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
viocons.c	[POWERPC] iSeries: fix viocons init	18 years ago
viotape.c	[PATCH] mark struct file_operations const 3	18 years ago
vme_scc.c	[PATCH] remove many unneeded #includes of sched.h	18 years ago
vr41xx_giu.c	[MIPS] Vr41xx: Fix after GENERIC_HARDIRQS_NO__DO_IRQ change	18 years ago
vt.c	[PATCH] Initialise SAK member for each virtual console to prevent oops	18 years ago
vt_ioctl.c	[PATCH] vt: fix potential race in VT_WAITACTIVE handler	18 years ago