On 02/25/2019 02:10 AM, Daniel Borkmann wrote:
> My understanding is that before doing any writes into skb, we should make
> sure the data area is private to us (and offset in linear data). In tc BPF
> (ingress, egress) we use bpf_try_make_writable() helper for this, others
> like act_{pedit,sk
On 02/23/2019 08:30 AM, Martin Lau wrote:
> On Sat, Feb 23, 2019 at 02:14:26AM +0100, Daniel Borkmann wrote:
>> On 02/23/2019 02:06 AM, brakmo wrote:
>>> This patch adds a new bpf helper BPF_FUNC_skb_ecn_set_ce
>>> "int bpf_skb_ecn_set_ce(struct sk_buff *skb)". It is added to
>>> BPF_PROG_TYPE_CGRO
On Sat, Feb 23, 2019 at 02:14:26AM +0100, Daniel Borkmann wrote:
> On 02/23/2019 02:06 AM, brakmo wrote:
> > This patch adds a new bpf helper BPF_FUNC_skb_ecn_set_ce
> > "int bpf_skb_ecn_set_ce(struct sk_buff *skb)". It is added to
> > BPF_PROG_TYPE_CGROUP_SKB typed bpf_prog which currently can
> >
On 02/23/2019 02:06 AM, brakmo wrote:
> This patch adds a new bpf helper BPF_FUNC_skb_ecn_set_ce
> "int bpf_skb_ecn_set_ce(struct sk_buff *skb)". It is added to
> BPF_PROG_TYPE_CGROUP_SKB typed bpf_prog which currently can
> be attached to the ingress and egress path. The helper is needed
> because
This patch adds a new bpf helper BPF_FUNC_skb_ecn_set_ce
"int bpf_skb_ecn_set_ce(struct sk_buff *skb)". It is added to
BPF_PROG_TYPE_CGROUP_SKB typed bpf_prog which currently can
be attached to the ingress and egress path. The helper is needed
because his type of bpf_prog cannot modify the skb dire
