Michal Sekletar ea02f9411d net: introduce SO_BPF_EXTENSIONS ... For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9f8 ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: Michal Sekletar <msekleta@redhat.com> Cc: David Miller <davem@davemloft.net> Reviewed-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-01-18 19:08:58 -08:00
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acpi	Merge branches 'acpi-pci-pm' and 'acpi-pci-hotplug'	2013-12-31 22:03:37 +01:00
asm-generic	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-01-06 17:37:45 -05:00
clocksource	…
crypto	crypto: scatterwalk - Use sg_chain_ptr on chain entries	2013-12-09 19:58:52 +08:00
drm	drm/radeon: 0x9649 is SUMO2 not SUMO	2013-12-23 10:03:41 -05:00
dt-bindings	For the 3.13 merge window we have a couple of new drivers for the AMS	2013-11-15 16:37:40 -08:00
keys	…
kvm	…
linux	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
math-emu	…
media	[media] videobuf2: Add support for file access mode flags for DMABUF exporting	2013-12-09 14:50:50 -02:00
memory	…
misc	…
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-01-18 00:55:41 -08:00
pcmcia	…
ras	…
rdma	IB/core: const'ify inbuf in struct ib_udata	2013-12-16 10:38:28 -08:00
rxrpc	…
scsi	[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers	2013-11-29 08:48:39 +04:00
sound	ALSA: memalloc.h - fix wrong truncation of dma_addr_t	2013-12-10 15:30:46 +01:00
target	target/file: Update hw_max_sectors based on current block_size	2013-12-19 00:18:54 -08:00
trace	net: Add trace events for all receive entry points, exposing more skb fields	2014-01-14 14:46:02 -08:00
uapi	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
video	fbdev changes for 3.13	2013-11-14 14:44:20 +09:00
xen	Bug-fixes:	2013-12-20 09:34:54 -08:00
Kbuild	…