Re: [PATCH bpf-next v6 5/6] bpf: Add selftests for raw syncookie helpers

On Fri, Apr 22, 2022 at 08:24:21PM +0300, Maxim Mikityanskiy wrote:

+void test_xdp_synproxy(void) +{

• int server_fd = -1, client_fd = -1, accept_fd = -1;
• struct nstoken *ns = NULL;
• FILE *ctrl_file = NULL;
• char buf[1024];
• size_t size;
• SYS("ip netns add synproxy");
• SYS("ip link add tmp0 type veth peer name tmp1");
• SYS("ip link set tmp1 netns synproxy");
• SYS("ip link set tmp0 up");
• SYS("ip addr replace 198.18.0.1/24 dev tmp0");
• // When checksum offload is enabled, the XDP program sees wrong
• // checksums and drops packets.
• SYS("ethtool -K tmp0 tx off");

BPF CI image doesn't have ethtool installed. It will take some time to get it updated. Until then we cannot land the patch set. Can you think of a way to run this test without shelling to ethtool?