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https://gitee.com/bianbu-linux/linux-6.6
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127e7dca42
Use bpf_prog_test_run_opts to test the skb_load_bytes function. Tests the behavior when offset is greater than INT_MAX or a normal value. Signed-off-by: Liu Jian <liujian56@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20220416105801.88708-4-liujian56@huawei.com
19 lines
319 B
C
19 lines
319 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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char _license[] SEC("license") = "GPL";
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__u32 load_offset = 0;
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int test_result = 0;
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SEC("tc")
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int skb_process(struct __sk_buff *skb)
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{
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char buf[16];
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test_result = bpf_skb_load_bytes(skb, load_offset, buf, 10);
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return 0;
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}
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