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authorJohn Fastabend <john.fastabend@gmail.com>2018-03-18 12:58:12 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-03-19 21:14:41 +0100
commit0dcbbf6785799ba05b44df2ba6bcc1195f4f945c (patch)
treefc6bb4f05e72ef992a80d015fa963fa08d2cbc6d /tools/testing/selftests/bpf
parentbpf: sockmap add SK_DROP tests (diff)
downloadwireguard-linux-0dcbbf6785799ba05b44df2ba6bcc1195f4f945c.tar.xz
wireguard-linux-0dcbbf6785799ba05b44df2ba6bcc1195f4f945c.zip
bpf: sockmap sample test for bpf_msg_pull_data
This adds an option to test the msg_pull_data helper. This uses two options txmsg_start and txmsg_end to let the user specify start and end bytes to pull. The options can be used with txmsg_apply, txmsg_cork options as well as with any of the basic tests, txmsg, txmsg_redir and txmsg_drop (plus noisy variants) to run pull_data inline with those tests. By giving user direct control over the variables we can easily do negative testing as well as positive tests. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests/bpf')
-rw-r--r--tools/testing/selftests/bpf/bpf_helpers.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index b5b45ff705ff..7cae376d8d0c 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -92,6 +92,8 @@ static int (*bpf_msg_apply_bytes)(void *ctx, int len) =
(void *) BPF_FUNC_msg_apply_bytes;
static int (*bpf_msg_cork_bytes)(void *ctx, int len) =
(void *) BPF_FUNC_msg_cork_bytes;
+static int (*bpf_msg_pull_data)(void *ctx, int start, int end, int flags) =
+ (void *) BPF_FUNC_msg_pull_data;
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions