Commit 29d1b33a authored Oct 16, 2017 by Jakub Kicinski Committed by David S. Miller Oct 18, 2017

bpf: allow access to skb->len from offloads



Since we are now doing strict checking of what offloads
may access, make sure skb->len is on that list.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 4f9218aa

net/core/filter.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -3738,6 +3738,8 @@ tc_cls_act_is_valid_access_analyzer(int off, int size,
		struct bpf_insn_access_aux *info)
		{
		switch (off) {
		case offsetof(struct sk_buff, len):
		return true;
		case offsetof(struct sk_buff, data):
		info->reg_type = PTR_TO_PACKET;
		return true;