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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asm-generic	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
drm	drm/radeon: expose render backend mask to the userspace	2013-12-23 10:03:43 -05:00
linux	bonding: add netlink attributes to slave link dev	2014-01-17 18:51:58 -08:00
mtd	mtd: mtd-abi: add a helper to detect the nand type	2013-10-27 16:27:06 -07:00
rdma	IB/core: Re-enable create_flow/destroy_flow uverbs	2013-11-17 08:22:09 -08:00
scsi	FCoE Updates for 3.9	2013-03-01 09:10:08 +00:00
sound	ALSA: compress: Fix 64bit ABI incompatibility	2013-12-10 15:32:44 +01:00
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