24 lines
570 B
C
24 lines
570 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <vmlinux.h>
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#include "xdp_metadata.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_endian.h>
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extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash,
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enum xdp_rss_hash_type *rss_type) __ksym;
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int called;
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SEC("freplace/rx")
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int freplace_rx(struct xdp_md *ctx)
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{
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enum xdp_rss_hash_type type = 0;
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u32 hash = 0;
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/* Call _any_ metadata function to make sure we don't crash. */
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bpf_xdp_metadata_rx_hash(ctx, &hash, &type);
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called++;
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return XDP_PASS;
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}
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char _license[] SEC("license") = "GPL";
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