diff options
| author | William Tu <u9012063@gmail.com> | 2016-08-19 11:55:44 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-19 22:42:44 -0700 |
| commit | 6afb1e28b8596443d72f82e085b4b2e8f410eae0 (patch) | |
| tree | 5a29556ab856c6b7773b7387d5205cf7537f8556 /samples/bpf/bpf_helpers.h | |
| parent | c0b558e5a393b77d2fe53335b5e07ca0e77178f8 (diff) | |
samples/bpf: Add tunnel set/get tests.
The patch creates sample code exercising bpf_skb_{set,get}_tunnel_key,
and bpf_skb_{set,get}_tunnel_opt for GRE, VXLAN, and GENEVE. A native
tunnel device is created in a namespace to interact with a lwtunnel
device out of the namespace, with metadata enabled. The bpf_skb_set_*
program is attached to tc egress and bpf_skb_get_* is attached to egress
qdisc. A ping between two tunnels is used to verify correctness and
the result of bpf_skb_get_* printed by bpf_trace_printk.
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/bpf_helpers.h')
| -rw-r--r-- | samples/bpf/bpf_helpers.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h index 6f1672a7254e..bbdf62a1e45e 100644 --- a/samples/bpf/bpf_helpers.h +++ b/samples/bpf/bpf_helpers.h @@ -47,6 +47,14 @@ static int (*bpf_probe_write_user)(void *dst, void *src, int size) = (void *) BPF_FUNC_probe_write_user; static int (*bpf_current_task_under_cgroup)(void *map, int index) = (void *) BPF_FUNC_current_task_under_cgroup; +static int (*bpf_skb_get_tunnel_key)(void *ctx, void *key, int size, int flags) = + (void *) BPF_FUNC_skb_get_tunnel_key; +static int (*bpf_skb_set_tunnel_key)(void *ctx, void *key, int size, int flags) = + (void *) BPF_FUNC_skb_set_tunnel_key; +static int (*bpf_skb_get_tunnel_opt)(void *ctx, void *md, int size) = + (void *) BPF_FUNC_skb_get_tunnel_opt; +static int (*bpf_skb_set_tunnel_opt)(void *ctx, void *md, int size) = + (void *) BPF_FUNC_skb_set_tunnel_opt; /* llvm builtin functions that eBPF C program may use to * emit BPF_LD_ABS and BPF_LD_IND instructions |