From 5c3cf87d477a461274452cb46f7654c5b6ae6294 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 27 Feb 2019 19:04:10 -0800 Subject: 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 Reviewed-by: Quentin Monnet Acked-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann --- samples/bpf/sockex2_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'samples/bpf/sockex2_user.c') diff --git a/samples/bpf/sockex2_user.c b/samples/bpf/sockex2_user.c index 1d5c6e9a6d27..125ee6efc913 100644 --- a/samples/bpf/sockex2_user.c +++ b/samples/bpf/sockex2_user.c @@ -34,7 +34,7 @@ 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++) { -- cgit