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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boards	avr32: favr-32: clk_round_rate() can return a zero upon error	2013-12-10 08:46:38 +01:00
boot	avr32: fix out-of-range jump in large kernels	2013-11-20 09:53:21 +01:00
configs	avr32: Kill CONFIG_MTD_PARTITIONS	2013-12-10 08:46:37 +01:00
include	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
kernel	avr32: remove deprecated IRQF_DISABLED	2013-12-10 08:46:38 +01:00
lib	ARCH: drivers remove __dev* attributes.	2013-01-03 15:57:13 -08:00
mach-at32ap	avr32: pm: Fix section mismatch	2013-12-10 08:46:38 +01:00
mm	arch: mm: pass userspace fault flag to generic fault handler	2013-09-12 15:38:01 -07:00
oprofile	oprofilefs_create_...() do not need superblock argument	2013-09-03 22:52:48 -04:00
Kconfig	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
Kconfig.debug	[AVR32] Include instrumentation menu	2008-01-25 08:31:40 +01:00
Makefile	kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line	2010-08-03 14:09:45 +02:00