1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <test_progs.h>
4 #include <network_helpers.h>
5 #include "test_parse_tcp_hdr_opt.skel.h"
6 #include "test_parse_tcp_hdr_opt_dynptr.skel.h"
7 #include "test_tcp_hdr_options.h"
8
9 struct test_pkt {
10 struct ipv6_packet pk6_v6;
11 u8 options[16];
12 } __packed;
13
14 struct test_pkt pkt = {
15 .pk6_v6.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
16 .pk6_v6.iph.nexthdr = IPPROTO_TCP,
17 .pk6_v6.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
18 .pk6_v6.tcp.urg_ptr = 123,
19 .pk6_v6.tcp.doff = 9, /* 16 bytes of options */
20
21 .options = {
22 TCPOPT_MSS, 4, 0x05, 0xB4, TCPOPT_NOP, TCPOPT_NOP,
23 0, 6, 0xBB, 0xBB, 0xBB, 0xBB, TCPOPT_EOL
24 },
25 };
26
test_parse_opt(void)27 static void test_parse_opt(void)
28 {
29 struct test_parse_tcp_hdr_opt *skel;
30 struct bpf_program *prog;
31 char buf[128];
32 int err;
33
34 LIBBPF_OPTS(bpf_test_run_opts, topts,
35 .data_in = &pkt,
36 .data_size_in = sizeof(pkt),
37 .data_out = buf,
38 .data_size_out = sizeof(buf),
39 .repeat = 3,
40 );
41
42 skel = test_parse_tcp_hdr_opt__open_and_load();
43 if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
44 return;
45
46 pkt.options[6] = skel->rodata->tcp_hdr_opt_kind_tpr;
47 prog = skel->progs.xdp_ingress_v6;
48
49 err = bpf_prog_test_run_opts(bpf_program__fd(prog), &topts);
50 ASSERT_OK(err, "ipv6 test_run");
51 ASSERT_EQ(topts.retval, XDP_PASS, "ipv6 test_run retval");
52 ASSERT_EQ(skel->bss->server_id, 0xBBBBBBBB, "server id");
53
54 test_parse_tcp_hdr_opt__destroy(skel);
55 }
56
test_parse_opt_dynptr(void)57 static void test_parse_opt_dynptr(void)
58 {
59 struct test_parse_tcp_hdr_opt_dynptr *skel;
60 struct bpf_program *prog;
61 char buf[128];
62 int err;
63
64 LIBBPF_OPTS(bpf_test_run_opts, topts,
65 .data_in = &pkt,
66 .data_size_in = sizeof(pkt),
67 .data_out = buf,
68 .data_size_out = sizeof(buf),
69 .repeat = 3,
70 );
71
72 skel = test_parse_tcp_hdr_opt_dynptr__open_and_load();
73 if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
74 return;
75
76 pkt.options[6] = skel->rodata->tcp_hdr_opt_kind_tpr;
77 prog = skel->progs.xdp_ingress_v6;
78
79 err = bpf_prog_test_run_opts(bpf_program__fd(prog), &topts);
80 ASSERT_OK(err, "ipv6 test_run");
81 ASSERT_EQ(topts.retval, XDP_PASS, "ipv6 test_run retval");
82 ASSERT_EQ(skel->bss->server_id, 0xBBBBBBBB, "server id");
83
84 test_parse_tcp_hdr_opt_dynptr__destroy(skel);
85 }
86
test_parse_tcp_hdr_opt(void)87 void test_parse_tcp_hdr_opt(void)
88 {
89 if (test__start_subtest("parse_tcp_hdr_opt"))
90 test_parse_opt();
91 if (test__start_subtest("parse_tcp_hdr_opt_dynptr"))
92 test_parse_opt_dynptr();
93 }
94
