1 files changed, 73 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c
new file mode 100644
index 000000000000..ccde6a4c6319
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Intel */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/if_ether.h>
+#include "xsk_xdp_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} xsk SEC(".maps");
+
+static unsigned int idx;
+int count = 0;
+
+SEC("xdp.frags") int xsk_def_prog(struct xdp_md *xdp)
+{
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp.frags") int xsk_xdp_drop(struct xdp_md *xdp)
+{
+	/* Drop every other packet */
+	if (idx++ % 2)
+		return XDP_DROP;
+
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp.frags") int xsk_xdp_populate_metadata(struct xdp_md *xdp)
+{
+	void *data, *data_meta;
+	struct xdp_info *meta;
+	int err;
+
+	/* Reserve enough for all custom metadata. */
+	err = bpf_xdp_adjust_meta(xdp, -(int)sizeof(struct xdp_info));
+	if (err)
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_meta = (void *)(long)xdp->data_meta;
+
+	if (data_meta + sizeof(struct xdp_info) > data)
+		return XDP_DROP;
+
+	meta = data_meta;
+	meta->count = count++;
+
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp") int xsk_xdp_shared_umem(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	void *data_end = (void *)(long)xdp->data_end;
+	struct ethhdr *eth = data;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	/* Redirecting packets based on the destination MAC address */
+	idx = ((unsigned int)(eth->h_dest[5])) / 2;
+	if (idx > MAX_SOCKETS)
+		return XDP_DROP;
+
+	return bpf_redirect_map(&xsk, idx, XDP_DROP);
+}
+
+char _license[] SEC("license") = "GPL";