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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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3384c7c764
Analogous to the gso_segs selftests introduced in commit d9ff286a0f
("bpf: allow BPF programs access skb_shared_info->gso_segs field").
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210909220409.8804-3-vfedorenko@novek.ru
36 lines
635 B
C
36 lines
635 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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int _version SEC("version") = 1;
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char _license[] SEC("license") = "GPL";
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SEC("skb_ctx")
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int process(struct __sk_buff *skb)
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{
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#pragma clang loop unroll(full)
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for (int i = 0; i < 5; i++) {
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if (skb->cb[i] != i + 1)
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return 1;
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skb->cb[i]++;
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}
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skb->priority++;
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skb->tstamp++;
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skb->mark++;
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if (skb->wire_len != 100)
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return 1;
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if (skb->gso_segs != 8)
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return 1;
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if (skb->gso_size != 10)
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return 1;
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if (skb->ingress_ifindex != 11)
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return 1;
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if (skb->ifindex != 1)
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return 1;
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if (skb->hwtstamp != 11)
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return 1;
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return 0;
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}
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