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
..
boot	powerpc/512x: dts: disable MPC5125 usb module	2013-12-20 22:12:07 +01:00
configs	powerpc/52xx: Re-enable bestcomm driver in defconfigs	2013-12-10 11:25:08 +11:00
crypto
include	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
kernel	Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2014-01-13 10:59:05 +07:00
kvm	KVM: PPC: Book3S HV: Don't drop low-order page address bits	2013-12-18 11:30:35 +01:00
lib	powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endian	2013-12-30 14:02:30 +11:00
math-emu
mm	powerpc/booke: Only check for hugetlb in flush if vma != NULL	2013-11-22 16:57:29 -06:00
net	bpf: do not use reciprocal divide	2014-01-15 17:02:08 -08:00
oprofile
perf
platforms	powernv/eeh: Add buffer for P7IOC hub error data	2013-12-30 14:02:32 +11:00
sysdev	powerpc/44x: Fix ocm_block allocation	2013-12-10 11:25:04 +11:00
xmon
Kconfig	Kconfig cleanups for v3.13	2013-11-15 14:05:15 -08:00
Kconfig.debug
Makefile	powerpc: Fix error when cross building TAGS & cscope	2013-11-25 11:49:11 +11:00
relocs_check.pl