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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-02-27 19:04:10 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-03-01 00:53:45 +0100 |
| commit | 5c3cf87d477a461274452cb46f7654c5b6ae6294 (patch) | |
| tree | 29fa9024249fc4ab34e527ccfd11882d9487b494 /samples/bpf/sockex1_user.c | |
| parent | ebace0e981b2aa6b2c0eb9bee0df3676fd690d8b (diff) | |
| download | lwn-5c3cf87d477a461274452cb46f7654c5b6ae6294.tar.gz lwn-5c3cf87d477a461274452cb46f7654c5b6ae6294.zip | |
samples: bpf: force IPv4 in ping
ping localhost may default of IPv6 on modern systems, but
samples are trying to only parse IPv4. Force IPv4.
samples/bpf/tracex1_user.c doesn't interpret the packet so
we don't care which IP version will be used there.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'samples/bpf/sockex1_user.c')
| -rw-r--r-- | samples/bpf/sockex1_user.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/bpf/sockex1_user.c b/samples/bpf/sockex1_user.c index 93ec01c56104..be8ba5686924 100644 --- a/samples/bpf/sockex1_user.c +++ b/samples/bpf/sockex1_user.c @@ -26,7 +26,7 @@ int main(int ac, char **argv) assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, sizeof(prog_fd[0])) == 0); - f = popen("ping -c5 localhost", "r"); + f = popen("ping -4 -c5 localhost", "r"); (void) f; for (i = 0; i < 5; i++) { |