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Eric Paris d7e7528bcd Audit: push audit success and retcode into arch ptrace.h 
The audit system previously expected arches calling to audit_syscall_exit to
supply as arguments if the syscall was a success and what the return code was.
Audit also provides a helper AUDITSC_RESULT which was supposed to simplify things
by converting from negative retcodes to an audit internal magic value stating
success or failure.  This helper was wrong and could indicate that a valid
pointer returned to userspace was a failed syscall.  The fix is to fix the
layering foolishness.  We now pass audit_syscall_exit a struct pt_reg and it
in turns calls back into arch code to collect the return value and to
determine if the syscall was a success or failure.  We also define a generic
is_syscall_success() macro which determines success/failure based on if the
value is < -MAX_ERRNO.  This works for arches like x86 which do not use a
separate mechanism to indicate syscall failure.

We make both the is_syscall_success() and regs_return_value() static inlines
instead of macros.  The reason is because the audit function must take a void*
for the regs.  (uml calls theirs struct uml_pt_regs instead of just struct
pt_regs so audit_syscall_exit can't take a struct pt_regs).  Since the audit
function takes a void* we need to use static inlines to cast it back to the
arch correct structure to dereference it.

The other major change is that on some arches, like ia64, MIPS and ppc, we
change regs_return_value() to give us the negative value on syscall failure.
THE only other user of this macro, kretprobe_example.c, won't notice and it
makes the value signed consistently for the audit functions across all archs.

In arch/sh/kernel/ptrace_64.c I see that we were using regs[9] in the old
audit code as the return value.  But the ptrace_64.h code defined the macro
regs_return_value() as regs[3].  I have no idea which one is correct, but this
patch now uses the regs_return_value() function, so it now uses regs[3].

For powerpc we previously used regs->result but now use the
regs_return_value() function which uses regs->gprs[3].  regs->gprs[3] is
always positive so the regs_return_value(), much like ia64 makes it negative
before calling the audit code when appropriate.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: H. Peter Anvin <hpa@zytor.com> [for x86 portion]
Acked-by: Tony Luck <tony.luck@intel.com> [for ia64]
Acked-by: Richard Weinberger <richard@nod.at> [for uml]
Acked-by: David S. Miller <davem@davemloft.net> [for sparc]
Acked-by: Ralf Baechle <ralf@linux-mips.org> [for mips]
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [for ppc]
2012-01-17 16:16:56 -05:00
..
iseries
8xx_immap.h
abs_addr.h
agp.h
asm-compat.h
asm-offsets.h
async_tx.h
atomic.h powerpc: Fix atomic_xxx_return barrier semantics 2011-11-17 16:26:07 +11:00
auxvec.h
backlight.h
bitops.h powerpc: Fix atomic_xxx_return barrier semantics 2011-11-17 16:26:07 +11:00
bitsperlong.h
bootx.h
btext.h
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
cell-pmu.h
cell-regs.h
checksum.h
clk_interface.h
code-patching.h
compat.h compat: sync compat_stats with statfs. 2011-10-28 14:58:53 +02:00
cpm.h
cpm1.h
cpm2.h
cputable.h powerpc: POWER7 optimised copy_to_user/copy_from_user using VMX 2011-12-19 14:40:40 +11:00
cputhreads.h
cputime.h Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-01-06 17:58:22 -08:00
current.h
dbdma.h
dbell.h powerpc: Fix doorbell type shift 2011-06-20 11:21:48 +10:00
dcr-generic.h
dcr-mmio.h
dcr-native.h
dcr-regs.h
dcr.h
delay.h
device.h powerpc: Use the newly added get_required_mask dma_map_ops hook 2011-09-20 09:19:35 +10:00
disassemble.h
div64.h
dma-mapping.h powerpc: Use the newly added get_required_mask dma_map_ops hook 2011-09-20 09:19:35 +10:00
dma.h
edac.h
eeh.h
eeh_event.h
ehv_pic.h powerpc: introduce the ePAPR embedded hypervisor vmpic driver 2011-06-27 08:30:26 -05:00
elf.h treewide: fix potentially dangerous trailing ';' in #defined values/expressions 2011-07-21 14:10:00 +02:00
emergency-restart.h
emulated_ops.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
epapr_hcalls.h powerpc: introduce ePAPR embedded hypervisor hcall interface 2011-06-27 08:30:19 -05:00
errno.h
exception-64e.h powerpc/book3e-64: use a separate TLB handler when linear map is bolted 2011-06-29 17:47:48 +10:00
exception-64s.h KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
fb.h
fcntl.h
feature-fixups.h
firmware.h powerpc/powernv: Basic support for OPAL 2011-09-20 16:09:50 +10:00
fixmap.h
floppy.h powerpc/irq: Remove IRQF_DISABLED 2011-11-08 14:51:46 +11:00
fs_pd.h
fsl_85xx_cache_sram.h
fsl_gtm.h
fsl_guts.h
fsl_hcalls.h powerpc: introduce ePAPR embedded hypervisor hcall interface 2011-06-27 08:30:19 -05:00
fsl_ifc.h powerpc/fsl: Add support for Integrated Flash Controller 2012-01-04 15:41:22 -06:00
fsl_lbc.h powerpc/85xx: Add lbc suspend support for PM 2011-11-24 02:01:40 -06:00
ftrace.h powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
futex.h powerpc: Fix atomic_xxx_return barrier semantics 2011-11-17 16:26:07 +11:00
gpio.h
grackle.h
hardirq.h
heathrow.h
highmem.h
hugetlb.h powerpc: Define/use HUGETLB_NEED_PRELOAD insead of complicated #if 2011-12-07 16:26:24 +11:00
hvcall.h KVM: PPC: Handle some PAPR hcalls in the kernel 2011-07-12 13:16:55 +03:00
hvconsole.h
hvcserver.h
hvsi.h powerpc/hvsi: Fix conflict with old HVSI driver 2011-07-01 13:10:21 +10:00
hw_breakpoint.h perf, powerpc: Fix build borkage 2011-07-01 16:20:04 +02:00
hw_irq.h
hydra.h
i8259.h
ibmebus.h
ide.h
immap_cpm2.h
immap_qe.h
io-defs.h
io-workarounds.h
io.h treewide: Fix typos in various parts of the kernel, and fix some comments. 2011-12-02 14:57:31 +01:00
io_event_irq.h powerpc/pseries: Add support for IO event interrupts 2011-05-06 13:19:01 +10:00
ioctl.h
ioctls.h
iommu.h
ipcbuf.h
ipic.h
irq.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
irq_regs.h
irqflags.h
jump_label.h powerpc: Jump label misalignment causes oops at boot 2011-08-05 14:47:55 +10:00
Kbuild powerpc: Use rwsem.h from generic location 2011-12-16 14:39:48 +11:00
kdebug.h
kdump.h powerpc: Rename mapping based RELOCATABLE to DYNAMIC_MEMSTART for BookE 2011-12-20 10:20:19 -05:00
kexec.h powerpc: Cleanup crash/kexec code 2011-12-08 14:02:23 +11:00
keylargo.h treewide: Fix typos in various parts of the kernel, and fix some comments. 2011-12-02 14:57:31 +01:00
kgdb.h
kmap_types.h
kprobes.h
kvm.h KVM: PPC: Whitespace fix for kvm.h 2011-12-27 11:26:43 +02:00
kvm_44x.h KVM: PPC: booke: add sregs support 2011-05-22 08:47:53 -04:00
kvm_asm.h KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00
kvm_book3s.h KVM: PPC: move compute_tlbie_rb to book3s_64 common header 2011-12-26 13:28:00 +02:00
kvm_book3s_32.h
kvm_book3s_64.h KVM: PPC: move compute_tlbie_rb to book3s_64 common header 2011-12-26 13:28:00 +02:00
kvm_book3s_asm.h KVM: PPC: Implement H_CEDE hcall for book3s_hv in real-mode code 2011-09-25 19:52:30 +03:00
kvm_booke.h KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00
kvm_e500.h KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
kvm_fpu.h
kvm_host.h KVM: PPC: Implement H_CEDE hcall for book3s_hv in real-mode code 2011-09-25 19:52:30 +03:00
kvm_para.h
kvm_ppc.h KVM: PPC: Add sanity checking to vcpu_run 2011-09-25 19:52:27 +03:00
libata-portmap.h
linkage.h
local.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
local64.h
lppaca.h powerpc: Ensure dtl buffers do not cross 4k boundary 2011-05-19 14:30:41 +10:00
lv1call.h powerpc/ps3: Fix hcall lv1_read_repository_node 2011-12-08 14:05:55 +11:00
machdep.h powerpc/pci: Add a platform hook after probe and before resource survey 2011-11-25 14:32:53 +11:00
macio.h treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
mc146818rtc.h
mediabay.h
mman.h
mmu-8xx.h
mmu-40x.h
mmu-44x.h
mmu-book3e.h powerpc: Define/use HUGETLB_NEED_PRELOAD insead of complicated #if 2011-12-07 16:26:24 +11:00
mmu-hash32.h
mmu-hash64.h powerpc: Fix comment explaining our VSID layout 2011-12-19 14:41:22 +11:00
mmu.h powerpc: Hugetlb for BookE 2011-09-20 09:19:40 +10:00
mmu_context.h
mmzone.h Fix node_start/end_pfn() definition for mm/page_cgroup.c 2011-06-27 14:13:09 -07:00
module.h
mpc5xxx.h
mpc6xx.h
mpc8xx.h
mpc52xx.h
mpc52xx_psc.h
mpc5121.h
mpc8260.h
mpic.h powerpc/mpic: Cache the device-tree node in "struct mpic" 2011-12-07 13:43:08 +11:00
msgbuf.h
msi_bitmap.h
mutex.h
nvram.h
ohare.h
opal.h powerpc/powernv: Update OPAL interfaces 2011-12-07 18:02:02 +11:00
oprofile_impl.h
paca.h powerpc: Provide a way for KVM to indicate that NV GPR values are lost 2011-12-08 14:22:53 +11:00
page.h powerpc: Define virtual-physical translations for RELOCATABLE 2011-12-20 10:21:34 -05:00
page_32.h
page_64.h powerpc: Only define HAVE_ARCH_HUGETLB_UNMAPPED_AREA if PPC_MM_SLICES 2011-12-07 16:26:21 +11:00
param.h
parport.h
pasemi_dma.h
pci-bridge.h Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
pci.h Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
percpu.h
perf_event.h
perf_event_fsl_emb.h
perf_event_server.h
pgalloc-32.h
pgalloc-64.h
pgalloc.h mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
pgtable-ppc32.h
pgtable-ppc64-4k.h
pgtable-ppc64-64k.h
pgtable-ppc64.h powerpc: Whitespace fix to include/asm/pgtable-ppc64.h 2011-06-29 17:48:16 +10:00
pgtable.h powerpc: Add pgprot_cached_noncoherent() 2011-11-25 14:32:52 +11:00
phyp_dump.h
pmac_feature.h
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h
poll.h
posix_types.h
ppc-opcode.h net: filter: BPF 'JIT' compiler for PPC64 2011-07-21 12:38:32 -07:00
ppc-pci.h
ppc4xx.h
ppc_asm.h powerpc/e500: SPE register saving: take arbitrary struct offset 2011-07-12 13:16:31 +03:00
processor.h powerpc/cpuidle: Handle power_save=off 2011-12-08 13:57:34 +11:00
prom.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
ps3.h
ps3av.h
ps3fb.h
ps3gpu.h
ps3stor.h
pSeries_reconfig.h powerpc/pseries: Introduce pSeries_reconfig_notify() 2011-06-29 17:48:22 +10:00
pte-8xx.h
pte-40x.h
pte-44x.h
pte-book3e.h powerpc: Hugetlb for BookE 2011-09-20 09:19:40 +10:00
pte-common.h
pte-fsl-booke.h
pte-hash32.h
pte-hash64-4k.h
pte-hash64-64k.h treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
pte-hash64.h
ptrace.h Audit: push audit success and retcode into arch ptrace.h 2012-01-17 16:16:56 -05:00
qe.h doc: fix broken references 2011-09-27 18:08:04 +02:00
qe_ic.h
reg.h powerpc/476fpe: Add 476fpe SoC code 2011-12-09 07:51:02 -05:00
reg_8xx.h
reg_a2.h powerpc: Add early debug for WSP platforms 2011-05-06 13:32:41 +10:00
reg_booke.h powerpc/book3e: Add ICSWX/ACOP support to Book3e cores like A2 2011-11-25 14:11:28 +11:00
reg_fsl_emb.h
resource.h
rheap.h
rio.h powerpc/fsl_rio: Fix compile error when CONFIG_FSL_RIO not set 2011-06-02 15:29:08 -05:00
rtas.h powerpc: Punch a hole in /dev/mem for librtas 2011-12-08 14:22:52 +11:00
rtc.h
scatterlist.h
scom.h
seccomp.h
sections.h powerpc: Copy down exception vectors after feature fixups 2011-11-16 14:47:54 +11:00
sembuf.h
serial.h
setjmp.h
setup.h powerpc: Fix build problem with default ppc_md.progress commit 2011-07-01 13:00:21 +10:00
sfp-machine.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h powerpc/smp: More generic support for "soft hotplug" 2011-09-20 15:53:24 +10:00
smu.h treewide: fix potentially dangerous trailing ';' in #defined values/expressions 2011-07-21 14:10:00 +02:00
socket.h net: add wireless TX status socket option 2011-11-09 16:01:02 -05:00
sockios.h
sparsemem.h powerpc: Fix oops when echoing bad values to /sys/devices/system/memory/probe 2011-09-20 15:53:23 +10:00
spinlock.h
spinlock_types.h
spu.h Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
spu_csa.h
spu_info.h
spu_priv1.h
sstep.h
stat.h
statfs.h
string.h
swab.h
swiotlb.h
synch.h powerpc: Fix atomic_xxx_return barrier semantics 2011-11-17 16:26:07 +11:00
syscall.h powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
syscalls.h
systbl.h Cross Memory Attach 2011-10-31 17:30:44 -07:00
system.h Merge branch 'kexec' into next 2011-12-16 11:09:21 +11:00
tce.h powerpc/powernv: Add TCE SW invalidation support 2011-11-25 14:32:57 +11:00
termbits.h
termios.h
thread_info.h freezer: remove now unused TIF_FREEZE 2011-11-21 12:32:25 -08:00
time.h powerpc/time: Optimise decrementer_check_overflow 2011-11-25 14:11:26 +11:00
timex.h
tlb.h mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
tlbflush.h
topology.h cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem 2011-12-21 14:29:42 -08:00
trace.h
tsi108.h
tsi108_irq.h
tsi108_pci.h
types.h Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
uaccess.h
ucc.h
ucc_fast.h
ucc_slow.h
ucontext.h
udbg.h Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-11-06 17:12:03 -08:00
uic.h
unaligned.h
uninorth.h
unistd.h Cross Memory Attach 2011-10-31 17:30:44 -07:00
user.h
vdso.h
vdso_datapage.h
vga.h
vio.h
wsp.h powerpc: Add WSP platform 2011-05-06 13:32:35 +10:00
xics.h powerpc/irq: Remove IRQF_DISABLED 2011-11-08 14:51:46 +11:00
xilinx_intc.h
xilinx_pci.h
xmon.h
xor.h