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android_kernel_xiaomi_sm8350/include/asm-mips
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Catherine Zhang 877ce7c1b3 [AF_UNIX]: Datagram getpeersec 
This patch implements an API whereby an application can determine the
label of its peer's Unix datagram sockets via the auxiliary data mechanism of
recvmsg.

Patch purpose:

This patch enables a security-aware application to retrieve the
security context of the peer of a Unix datagram socket.  The application
can then use this security context to determine the security context for
processing on behalf of the peer who sent the packet.

Patch design and implementation:

The design and implementation is very similar to the UDP case for INET
sockets.  Basically we build upon the existing Unix domain socket API for
retrieving user credentials.  Linux offers the API for obtaining user
credentials via ancillary messages (i.e., out of band/control messages
that are bundled together with a normal message).  To retrieve the security
context, the application first indicates to the kernel such desire by
setting the SO_PASSSEC option via getsockopt.  Then the application
retrieves the security context using the auxiliary data mechanism.

An example server application for Unix datagram socket should look like this:

toggle = 1;
toggle_len = sizeof(toggle);

setsockopt(sockfd, SOL_SOCKET, SO_PASSSEC, &toggle, &toggle_len);
recvmsg(sockfd, &msg_hdr, 0);
if (msg_hdr.msg_controllen > sizeof(struct cmsghdr)) {
    cmsg_hdr = CMSG_FIRSTHDR(&msg_hdr);
    if (cmsg_hdr->cmsg_len <= CMSG_LEN(sizeof(scontext)) &&
        cmsg_hdr->cmsg_level == SOL_SOCKET &&
        cmsg_hdr->cmsg_type == SCM_SECURITY) {
        memcpy(&scontext, CMSG_DATA(cmsg_hdr), sizeof(scontext));
    }
}

sock_setsockopt is enhanced with a new socket option SOCK_PASSSEC to allow
a server socket to receive security context of the peer.

Testing:

We have tested the patch by setting up Unix datagram client and server
applications.  We verified that the server can retrieve the security context
using the auxiliary data mechanism of recvmsg.

Signed-off-by: Catherine Zhang <cxzhang@watson.ibm.com>
Acked-by: Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:58:06 -07:00
..
arc Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ddb5xxx Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
dec Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
emma2rh [MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins board 2006-06-19 17:39:26 +01:00
galileo-boards
ip32 Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
it8172
jmr3927 Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
lasat
mach-atlas
mach-au1x00 [MIPS] au1xxx: fix PSC_SMBTXRX_RSR. 2006-06-29 21:10:53 +01:00
mach-cobalt Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
mach-db1x00 [PATCH] Au1550/1200: add missing PSC #define's, make OSS driver use the proper ones 2006-06-23 07:42:56 -07:00
mach-dec [MIPS] Make timer interrupt frequency configurable from kconfig. 2006-06-19 17:39:27 +01:00
mach-emma2rh [MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins board 2006-06-19 17:39:26 +01:00
mach-ev64120
mach-ev96100
mach-excite [MIPS] Support for the RM9000-based Basler eXcite smart camera platform. 2006-06-19 17:39:26 +01:00
mach-generic [PATCH] random: remove SA_SAMPLE_RANDOM from floppy driver 2006-06-25 10:01:00 -07:00
mach-ip22 Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
mach-ip27 [MIPS] Add Missing R4K Cache Macros to IP27 & IP32 2006-06-19 17:39:26 +01:00
mach-ip32 Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
mach-ja
mach-jazz [PATCH] random: remove SA_SAMPLE_RANDOM from floppy driver 2006-06-25 10:01:00 -07:00
mach-jmr3927 [MIPS] JMR3927 build fixes for the RTC code. 2006-04-19 04:14:20 +02:00
mach-lasat
mach-mips [MIPS] Define ARCH_HAS_IRQ_PER_CPU for all SMP systems. 2006-06-29 21:10:48 +01:00
mach-ocelot
mach-ocelot3
mach-pb1x00 Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
mach-pnx8550
mach-qemu [MIPS] Make timer interrupt frequency configurable from kconfig. 2006-06-19 17:39:27 +01:00
mach-rm200 [MIPS] Fix R4K cache macro names 2006-06-19 17:39:26 +01:00
mach-sibyte
mach-sim Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
mach-wrppmc [MIPS] Wind River 4KC PPMC Eval Board Support 2006-06-19 17:39:18 +01:00
mach-yosemite
mips-boards Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-04-29 01:42:26 +01:00
pci [MIPS] SN: include asm/sn/types.h for nasid_t. 2006-06-19 17:39:24 +01:00
sgi
sibyte Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
sn [MIPS] Remove BSD and Sys V compat data types. 2006-06-29 21:10:54 +01:00
tx4927 Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
tx4938
vr41xx Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
xtalk
8253pit.h
a.out.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
abi.h
addrspace.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
apm.h [MIPS] APM emu support 2006-06-19 17:39:22 +01:00
asm.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
asmmacro-32.h [MIPS] Fix fpu_save_double on 64-bit. 2006-06-19 17:39:13 +01:00
asmmacro-64.h [MIPS] Fix fpu_save_double on 64-bit. 2006-06-19 17:39:13 +01:00
asmmacro.h [MIPS] Fix use of ehb instruction for non-R2 configurations. 2006-06-29 21:10:49 +01:00
atomic.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
auxvec.h
bcache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
bitops.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-04-29 01:42:26 +01:00
bootinfo.h [MIPS] Support for the RM9000-based Basler eXcite smart camera platform. 2006-06-19 17:39:26 +01:00
branch.h
break.h
bug.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
bugs.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
byteorder.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cachectl.h
cacheflush.h [MIPS] Handle IDE PIO cache aliases on SMP. 2006-04-19 04:14:29 +02:00
cacheops.h
checksum.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
compat.h [PATCH] N32 sigset and __COMPAT_ENDIAN_SWAP__ 2006-06-25 10:01:15 -07:00
compiler.h
cpu-features.h [MIPS] Fix configuration of R2 CPU features and multithreading. 2006-06-29 21:10:51 +01:00
cpu-info.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cpu.h [MIPS] Treat R14000 like R10000. 2006-06-01 00:28:35 +01:00
cputime.h
current.h
debug.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
delay.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
div64.h
dma-mapping.h
dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ds1286.h
ds1742.h [MIPS] JMR3927 build fixes for the RTC code. 2006-04-19 04:14:20 +02:00
dsp.h
elf.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
emergency-restart.h
errno.h
fcntl.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
fixmap.h [MIPS] Fix FIXADDR_TOP for TX39/TX49. 2006-06-29 21:10:52 +01:00
floppy.h
fpregdef.h
fpu_emulator.h [MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs. 2006-06-19 17:39:18 +01:00
fpu.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
futex.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
gdb-stub.h
gfx.h
gt64120.h
gt64240.h
hardirq.h
hazards.h [MIPS] Add missing backslashes to macro definitions. 2006-06-29 21:10:55 +01:00
highmem.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
i8259.h
ide.h
inst.h [MIPS] Update/Fix instruction definitions 2006-06-01 00:28:34 +01:00
interrupt.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
inventory.h
io.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ioctl.h
ioctls.h
ipc.h
ipcbuf.h
irq_cpu.h
irq.h [MIPS] Define ARCH_HAS_IRQ_PER_CPU for all SMP systems. 2006-06-29 21:10:48 +01:00
isadep.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
it8712.h
jazz.h
jazzdma.h
kmap_types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
kspd.h [MIPS] kpsd and other AP/SP improvements. 2006-04-19 04:14:27 +02:00
linkage.h
local.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
m48t35.h
m48t37.h
marvell.h [MIPS] MV6434x: Add prototype of interrupt dispatch function. 2006-04-19 04:14:20 +02:00
mc146818-time.h
mc146818rtc.h
mips_mt.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
mipsmtregs.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
mipsprom.h
mipsregs.h [MIPS] Fix use of ehb instruction for non-R2 configurations. 2006-06-29 21:10:49 +01:00
mman.h
mmu_context.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
mmu.h
mmzone.h [PATCH] Delete unused definitions of kvaddr_to_nid 2006-06-23 07:42:52 -07:00
module.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
msc01_ic.h
msgbuf.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
mutex.h
namei.h
nile4.h
paccess.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
page.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
param.h [MIPS] Make timer interrupt frequency configurable from kconfig. 2006-06-19 17:39:27 +01:00
parport.h
pci.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
percpu.h
pgalloc.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pgtable-32.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
pgtable-64.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
pgtable-bits.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pgtable.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
pmon.h
poll.h
posix_types.h
prctl.h
prefetch.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
processor.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
ptrace.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
qemu.h [MIPS] Qemu system shutdown support 2006-06-19 17:39:19 +01:00
r4kcache.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
reboot.h
reg.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
regdef.h
resource.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
rm9k-ocd.h [MIPS] Support for the RM9000-based Basler eXcite smart camera platform. 2006-06-19 17:39:26 +01:00
rtc.h [MIPS] Fix genrtc compilation. 2006-04-19 04:14:22 +02:00
rtlx.h [MIPS] kpsd and other AP/SP improvements. 2006-04-19 04:14:27 +02:00
scatterlist.h
sections.h
segment.h
semaphore.h
sembuf.h
serial.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
setup.h
sgialib.h
sgiarcs.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
sgidefs.h
shmbuf.h
shmparam.h
sigcontext.h [MIPS] Update struct sigcontext member names 2006-06-01 00:28:31 +01:00
siginfo.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
signal.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
sim.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
smp.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
smtc_ipi.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
smtc_proc.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
smtc.h [MIPS] MT: Improved multithreading support. 2006-04-19 04:14:28 +02:00
sni.h [MIPS] Support SNI RM200C SNI in big endian mode and R5000 processors. 2006-06-19 17:39:24 +01:00
socket.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
sockios.h
sparsemem.h [MIPS] Fix sparsemem support. 2006-06-06 00:15:20 +01:00
spinlock_types.h
spinlock.h
stackframe.h [MIPS] Fix use of ehb instruction for non-R2 configurations. 2006-06-29 21:10:49 +01:00
stat.h
statfs.h
string.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
suspend.h
sysmips.h
system.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
termbits.h
termios.h
thread_info.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
time.h
timex.h
titan_dep.h
tlb.h
tlbdebug.h
tlbflush.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
topology.h
traps.h
tx3912.h
types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
uaccess.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ucontext.h
unaligned.h
unistd.h [MIPS] Wire up tee(2). 2006-06-29 21:10:47 +01:00
user.h
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
vpe.h [MIPS] kpsd and other AP/SP improvements. 2006-04-19 04:14:27 +02:00
war.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
watch.h
wbflush.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
xor.h
xxs1500.h