6fcfe96e0f
Add test cases for bpf + strparser and separated them from sockmap_basic, as strparser has more encapsulation and parsing capabilities compared to standard sockmap. Signed-off-by: Jiayuan Chen <mrpre@163.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Jakub Sitnicki <jakub@cloudflare.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://patch.msgid.link/20250122100917.49845-6-mrpre@163.com
53 lines
1.1 KiB
C
53 lines
1.1 KiB
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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#include <bpf/bpf_endian.h>
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int verdict_max_size = 10000;
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struct {
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__uint(type, BPF_MAP_TYPE_SOCKMAP);
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__uint(max_entries, 20);
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__type(key, int);
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__type(value, int);
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} sock_map SEC(".maps");
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SEC("sk_skb/stream_verdict")
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int prog_skb_verdict(struct __sk_buff *skb)
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{
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__u32 one = 1;
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if (skb->len > verdict_max_size)
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return SK_PASS;
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return bpf_sk_redirect_map(skb, &sock_map, one, 0);
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}
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SEC("sk_skb/stream_verdict")
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int prog_skb_verdict_pass(struct __sk_buff *skb)
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{
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return SK_PASS;
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}
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SEC("sk_skb/stream_parser")
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int prog_skb_parser(struct __sk_buff *skb)
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{
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return skb->len;
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}
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SEC("sk_skb/stream_parser")
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int prog_skb_parser_partial(struct __sk_buff *skb)
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{
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/* agreement with the test program on a 4-byte size header
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* and 6-byte body.
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*/
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if (skb->len < 4) {
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/* need more header to determine full length */
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return 0;
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}
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/* return full length decoded from header.
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* the return value may be larger than skb->len which
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* means framework must wait body coming.
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*/
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return 10;
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}
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char _license[] SEC("license") = "GPL";
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