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authorStanislav Fomichev <sdf@google.com>2019-04-22 08:55:44 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-04-23 18:36:33 +0200
commit089b19a9204fc090793d389a265f54124eacb05d (patch)
tree66e9a7497cc7c7444866bda214ea14bd6b66f1ae /net/bpf
parent7e6e185c74dd8a8dc539300c079adc6bc27045d6 (diff)
downloadlinux-089b19a9204fc090793d389a265f54124eacb05d.tar.bz2
flow_dissector: switch kernel context to struct bpf_flow_dissector
struct bpf_flow_dissector has a small subset of sk_buff fields that flow dissector BPF program is allowed to access and an optional pointer to real skb. Real skb is used only in bpf_skb_load_bytes helper to read non-linear data. The real motivation for this is to be able to call flow dissector from eth_get_headlen context where we don't have an skb and need to dissect raw bytes. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/bpf')
-rw-r--r--net/bpf/test_run.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index 2221573dacdb..006ad865f7fb 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -382,7 +382,6 @@ int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog,
u32 repeat = kattr->test.repeat;
struct bpf_flow_keys flow_keys;
u64 time_start, time_spent = 0;
- struct bpf_skb_data_end *cb;
u32 retval, duration;
struct sk_buff *skb;
struct sock *sk;
@@ -423,9 +422,6 @@ int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog,
current->nsproxy->net_ns->loopback_dev);
skb_reset_network_header(skb);
- cb = (struct bpf_skb_data_end *)skb->cb;
- cb->qdisc_cb.flow_keys = &flow_keys;
-
if (!repeat)
repeat = 1;