leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bpf: allow access to skb->len from offloads

Browse Source 
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>
This commit is contained in:
Jakub Kicinski 2017-10-16 16:40:56 -07:00 committed by David S. Miller
parent 4f9218aaf8
commit 29d1b33a2e
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/core/filter.c
View File

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