netdev - [PATCH v2 bpf-next 0/2] bpf: add cg_skb_is_valid

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Date:   Wed, 17 Oct 2018 16:36:14 -0700
From:   Song Liu <songliubraving@...com>
To:     <netdev@...r.kernel.org>
CC:     <ast@...nel.org>, <daniel@...earbox.net>, <kernel-team@...com>,
        Song Liu <songliubraving@...com>
Subject: [PATCH v2 bpf-next 0/2] bpf: add cg_skb_is_valid_access

Changes v1 -> v2:
1. Updated the list of read-only fields, and read-write fields.
2. Added dummy sk to bpf_prog_test_run_skb().

This set enables BPF program of type BPF_PROG_TYPE_CGROUP_SKB to access
some __skb_buff data directly.

Song Liu (2):
  bpf: add cg_skb_is_valid_access for BPF_PROG_TYPE_CGROUP_SKB
  bpf: add tests for direct packet access from CGROUP_SKB

 kernel/bpf/cgroup.c                         |   4 +
 net/core/filter.c                           |  37 ++++-
 tools/testing/selftests/bpf/test_verifier.c | 159 ++++++++++++++++++++
 3 files changed, 199 insertions(+), 1 deletion(-)

--
2.17.1