1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 Facebook */
3
4 #include <linux/err.h>
5 #include <netinet/tcp.h>
6 #include <test_progs.h>
7 #include "network_helpers.h"
8 #include "bpf_dctcp.skel.h"
9 #include "bpf_cubic.skel.h"
10 #include "bpf_tcp_nogpl.skel.h"
11 #include "tcp_ca_update.skel.h"
12 #include "bpf_dctcp_release.skel.h"
13 #include "tcp_ca_write_sk_pacing.skel.h"
14 #include "tcp_ca_incompl_cong_ops.skel.h"
15 #include "tcp_ca_unsupp_cong_op.skel.h"
16 #include "tcp_ca_kfunc.skel.h"
17 #include "tcp_ca_untrusted_btf_write.skel.h"
18 #include "bpf_cc_cubic.skel.h"
19
20 static const unsigned int total_bytes = 10 * 1024 * 1024;
21 static int expected_stg = 0xeB9F;
22
23 struct cb_opts {
24 const char *cc;
25 int map_fd;
26 };
27
settcpca(int fd,const char * tcp_ca)28 static int settcpca(int fd, const char *tcp_ca)
29 {
30 int err;
31
32 err = setsockopt(fd, IPPROTO_TCP, TCP_CONGESTION, tcp_ca, strlen(tcp_ca));
33 if (!ASSERT_NEQ(err, -1, "setsockopt"))
34 return -1;
35
36 return 0;
37 }
38
start_test(char * addr_str,const struct network_helper_opts * srv_opts,const struct network_helper_opts * cli_opts,int * srv_fd,int * cli_fd)39 static bool start_test(char *addr_str,
40 const struct network_helper_opts *srv_opts,
41 const struct network_helper_opts *cli_opts,
42 int *srv_fd, int *cli_fd)
43 {
44 *srv_fd = start_server_str(AF_INET6, SOCK_STREAM, addr_str, 0, srv_opts);
45 if (!ASSERT_NEQ(*srv_fd, -1, "start_server_str"))
46 goto err;
47
48 /* connect to server */
49 *cli_fd = connect_to_fd_opts(*srv_fd, cli_opts);
50 if (!ASSERT_NEQ(*cli_fd, -1, "connect_to_fd_opts"))
51 goto err;
52
53 return true;
54
55 err:
56 if (*srv_fd != -1) {
57 close(*srv_fd);
58 *srv_fd = -1;
59 }
60 if (*cli_fd != -1) {
61 close(*cli_fd);
62 *cli_fd = -1;
63 }
64 return false;
65 }
66
do_test(const struct network_helper_opts * opts)67 static void do_test(const struct network_helper_opts *opts)
68 {
69 int lfd = -1, fd = -1;
70
71 if (!start_test(NULL, opts, opts, &lfd, &fd))
72 goto done;
73
74 ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data");
75
76 done:
77 if (lfd != -1)
78 close(lfd);
79 if (fd != -1)
80 close(fd);
81 }
82
cc_cb(int fd,void * opts)83 static int cc_cb(int fd, void *opts)
84 {
85 struct cb_opts *cb_opts = (struct cb_opts *)opts;
86
87 return settcpca(fd, cb_opts->cc);
88 }
89
test_cubic(void)90 static void test_cubic(void)
91 {
92 struct cb_opts cb_opts = {
93 .cc = "bpf_cubic",
94 };
95 struct network_helper_opts opts = {
96 .post_socket_cb = cc_cb,
97 .cb_opts = &cb_opts,
98 };
99 struct bpf_cubic *cubic_skel;
100 struct bpf_link *link;
101
102 cubic_skel = bpf_cubic__open_and_load();
103 if (!ASSERT_OK_PTR(cubic_skel, "bpf_cubic__open_and_load"))
104 return;
105
106 link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic);
107 if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
108 bpf_cubic__destroy(cubic_skel);
109 return;
110 }
111
112 do_test(&opts);
113
114 ASSERT_EQ(cubic_skel->bss->bpf_cubic_acked_called, 1, "pkts_acked called");
115
116 ASSERT_TRUE(cubic_skel->bss->nodelay_init_reject, "init reject nodelay option");
117 ASSERT_TRUE(cubic_skel->bss->nodelay_cwnd_event_tx_start_reject,
118 "cwnd_event_tx_start reject nodelay option");
119
120 bpf_link__destroy(link);
121 bpf_cubic__destroy(cubic_skel);
122 }
123
stg_post_socket_cb(int fd,void * opts)124 static int stg_post_socket_cb(int fd, void *opts)
125 {
126 struct cb_opts *cb_opts = (struct cb_opts *)opts;
127 int err;
128
129 err = settcpca(fd, cb_opts->cc);
130 if (err)
131 return err;
132
133 err = bpf_map_update_elem(cb_opts->map_fd, &fd,
134 &expected_stg, BPF_NOEXIST);
135 if (!ASSERT_OK(err, "bpf_map_update_elem(sk_stg_map)"))
136 return err;
137
138 return 0;
139 }
140
test_dctcp(void)141 static void test_dctcp(void)
142 {
143 struct cb_opts cb_opts = {
144 .cc = "bpf_dctcp",
145 };
146 struct network_helper_opts opts = {
147 .post_socket_cb = cc_cb,
148 .cb_opts = &cb_opts,
149 };
150 struct network_helper_opts cli_opts = {
151 .post_socket_cb = stg_post_socket_cb,
152 .cb_opts = &cb_opts,
153 };
154 int lfd = -1, fd = -1, tmp_stg, err;
155 struct bpf_dctcp *dctcp_skel;
156 struct bpf_link *link;
157
158 dctcp_skel = bpf_dctcp__open_and_load();
159 if (!ASSERT_OK_PTR(dctcp_skel, "bpf_dctcp__open_and_load"))
160 return;
161
162 link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
163 if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
164 bpf_dctcp__destroy(dctcp_skel);
165 return;
166 }
167
168 cb_opts.map_fd = bpf_map__fd(dctcp_skel->maps.sk_stg_map);
169 if (!start_test(NULL, &opts, &cli_opts, &lfd, &fd))
170 goto done;
171
172 err = bpf_map_lookup_elem(cb_opts.map_fd, &fd, &tmp_stg);
173 if (!ASSERT_ERR(err, "bpf_map_lookup_elem(sk_stg_map)") ||
174 !ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem(sk_stg_map)"))
175 goto done;
176
177 ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data");
178 ASSERT_EQ(dctcp_skel->bss->stg_result, expected_stg, "stg_result");
179
180 done:
181 bpf_link__destroy(link);
182 bpf_dctcp__destroy(dctcp_skel);
183 if (lfd != -1)
184 close(lfd);
185 if (fd != -1)
186 close(fd);
187 }
188
test_dctcp_autoattach_map(void)189 static void test_dctcp_autoattach_map(void)
190 {
191 struct cb_opts cb_opts = {
192 .cc = "bpf_dctcp",
193 };
194 struct network_helper_opts opts = {
195 .post_socket_cb = cc_cb,
196 .cb_opts = &cb_opts,
197 };
198 struct bpf_dctcp *dctcp_skel;
199 struct bpf_link *link;
200
201 dctcp_skel = bpf_dctcp__open_and_load();
202 if (!ASSERT_OK_PTR(dctcp_skel, "bpf_dctcp__open_and_load"))
203 return;
204
205 bpf_map__set_autoattach(dctcp_skel->maps.dctcp, true);
206 bpf_map__set_autoattach(dctcp_skel->maps.dctcp_nouse, false);
207
208 if (!ASSERT_OK(bpf_dctcp__attach(dctcp_skel), "bpf_dctcp__attach"))
209 goto destroy;
210
211 /* struct_ops is auto-attached */
212 link = dctcp_skel->links.dctcp;
213 if (!ASSERT_OK_PTR(link, "link"))
214 goto destroy;
215
216 do_test(&opts);
217
218 destroy:
219 bpf_dctcp__destroy(dctcp_skel);
220 }
221
222 static char *err_str;
223 static bool found;
224
libbpf_debug_print(enum libbpf_print_level level,const char * format,va_list args)225 static int libbpf_debug_print(enum libbpf_print_level level,
226 const char *format, va_list args)
227 {
228 const char *prog_name, *log_buf;
229
230 if (level != LIBBPF_WARN ||
231 !strstr(format, "-- BEGIN PROG LOAD LOG --")) {
232 vprintf(format, args);
233 return 0;
234 }
235
236 prog_name = va_arg(args, char *);
237 log_buf = va_arg(args, char *);
238 if (!log_buf)
239 goto out;
240 if (err_str && strstr(log_buf, err_str) != NULL)
241 found = true;
242 out:
243 printf(format, prog_name, log_buf);
244 return 0;
245 }
246
test_invalid_license(void)247 static void test_invalid_license(void)
248 {
249 libbpf_print_fn_t old_print_fn;
250 struct bpf_tcp_nogpl *skel;
251
252 err_str = "struct ops programs must have a GPL compatible license";
253 found = false;
254 old_print_fn = libbpf_set_print(libbpf_debug_print);
255
256 skel = bpf_tcp_nogpl__open_and_load();
257 ASSERT_NULL(skel, "bpf_tcp_nogpl");
258 ASSERT_EQ(found, true, "expected_err_msg");
259
260 bpf_tcp_nogpl__destroy(skel);
261 libbpf_set_print(old_print_fn);
262 }
263
test_dctcp_fallback(void)264 static void test_dctcp_fallback(void)
265 {
266 int err, lfd = -1, cli_fd = -1, srv_fd = -1;
267 struct bpf_dctcp *dctcp_skel;
268 struct bpf_link *link = NULL;
269 struct cb_opts dctcp = {
270 .cc = "bpf_dctcp",
271 };
272 struct network_helper_opts srv_opts = {
273 .post_socket_cb = cc_cb,
274 .cb_opts = &dctcp,
275 };
276 struct cb_opts cubic = {
277 .cc = "cubic",
278 };
279 struct network_helper_opts cli_opts = {
280 .post_socket_cb = cc_cb,
281 .cb_opts = &cubic,
282 };
283 char srv_cc[16];
284 socklen_t cc_len = sizeof(srv_cc);
285
286 dctcp_skel = bpf_dctcp__open();
287 if (!ASSERT_OK_PTR(dctcp_skel, "dctcp_skel"))
288 return;
289 strscpy(dctcp_skel->rodata->fallback_cc, "cubic");
290 if (!ASSERT_OK(bpf_dctcp__load(dctcp_skel), "bpf_dctcp__load"))
291 goto done;
292
293 link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
294 if (!ASSERT_OK_PTR(link, "dctcp link"))
295 goto done;
296
297 if (!start_test("::1", &srv_opts, &cli_opts, &lfd, &cli_fd))
298 goto done;
299
300 srv_fd = accept(lfd, NULL, 0);
301 if (!ASSERT_GE(srv_fd, 0, "srv_fd"))
302 goto done;
303 ASSERT_STREQ(dctcp_skel->bss->cc_res, "cubic", "cc_res");
304 ASSERT_EQ(dctcp_skel->bss->tcp_cdg_res, -ENOTSUPP, "tcp_cdg_res");
305 /* All setsockopt(TCP_CONGESTION) in the recurred
306 * bpf_dctcp->init() should fail with -EBUSY.
307 */
308 ASSERT_EQ(dctcp_skel->bss->ebusy_cnt, 3, "ebusy_cnt");
309
310 err = getsockopt(srv_fd, SOL_TCP, TCP_CONGESTION, srv_cc, &cc_len);
311 if (!ASSERT_OK(err, "getsockopt(srv_fd, TCP_CONGESTION)"))
312 goto done;
313 ASSERT_STREQ(srv_cc, "cubic", "srv_fd cc");
314
315 done:
316 bpf_link__destroy(link);
317 bpf_dctcp__destroy(dctcp_skel);
318 if (lfd != -1)
319 close(lfd);
320 if (srv_fd != -1)
321 close(srv_fd);
322 if (cli_fd != -1)
323 close(cli_fd);
324 }
325
test_rel_setsockopt(void)326 static void test_rel_setsockopt(void)
327 {
328 struct bpf_dctcp_release *rel_skel;
329 libbpf_print_fn_t old_print_fn;
330
331 err_str = "program of this type cannot use helper bpf_setsockopt";
332 found = false;
333
334 old_print_fn = libbpf_set_print(libbpf_debug_print);
335 rel_skel = bpf_dctcp_release__open_and_load();
336 libbpf_set_print(old_print_fn);
337
338 ASSERT_ERR_PTR(rel_skel, "rel_skel");
339 ASSERT_TRUE(found, "expected_err_msg");
340
341 bpf_dctcp_release__destroy(rel_skel);
342 }
343
test_write_sk_pacing(void)344 static void test_write_sk_pacing(void)
345 {
346 struct tcp_ca_write_sk_pacing *skel;
347 struct bpf_link *link;
348
349 skel = tcp_ca_write_sk_pacing__open_and_load();
350 if (!ASSERT_OK_PTR(skel, "open_and_load"))
351 return;
352
353 link = bpf_map__attach_struct_ops(skel->maps.write_sk_pacing);
354 ASSERT_OK_PTR(link, "attach_struct_ops");
355
356 bpf_link__destroy(link);
357 tcp_ca_write_sk_pacing__destroy(skel);
358 }
359
test_incompl_cong_ops(void)360 static void test_incompl_cong_ops(void)
361 {
362 struct tcp_ca_incompl_cong_ops *skel;
363 struct bpf_link *link;
364
365 skel = tcp_ca_incompl_cong_ops__open_and_load();
366 if (!ASSERT_OK_PTR(skel, "open_and_load"))
367 return;
368
369 /* That cong_avoid() and cong_control() are missing is only reported at
370 * this point:
371 */
372 link = bpf_map__attach_struct_ops(skel->maps.incompl_cong_ops);
373 ASSERT_ERR_PTR(link, "attach_struct_ops");
374
375 bpf_link__destroy(link);
376 tcp_ca_incompl_cong_ops__destroy(skel);
377 }
378
test_unsupp_cong_op(void)379 static void test_unsupp_cong_op(void)
380 {
381 libbpf_print_fn_t old_print_fn;
382 struct tcp_ca_unsupp_cong_op *skel;
383
384 err_str = "attach to unsupported member get_info";
385 found = false;
386 old_print_fn = libbpf_set_print(libbpf_debug_print);
387
388 skel = tcp_ca_unsupp_cong_op__open_and_load();
389 ASSERT_NULL(skel, "open_and_load");
390 ASSERT_EQ(found, true, "expected_err_msg");
391
392 tcp_ca_unsupp_cong_op__destroy(skel);
393 libbpf_set_print(old_print_fn);
394 }
395
test_update_ca(void)396 static void test_update_ca(void)
397 {
398 struct cb_opts cb_opts = {
399 .cc = "tcp_ca_update",
400 };
401 struct network_helper_opts opts = {
402 .post_socket_cb = cc_cb,
403 .cb_opts = &cb_opts,
404 };
405 struct tcp_ca_update *skel;
406 struct bpf_link *link;
407 int saved_ca1_cnt;
408 int err;
409
410 skel = tcp_ca_update__open_and_load();
411 if (!ASSERT_OK_PTR(skel, "open"))
412 return;
413
414 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
415 if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
416 goto out;
417
418 do_test(&opts);
419 saved_ca1_cnt = skel->bss->ca1_cnt;
420 ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
421
422 err = bpf_link__update_map(link, skel->maps.ca_update_2);
423 ASSERT_OK(err, "update_map");
424
425 do_test(&opts);
426 ASSERT_EQ(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
427 ASSERT_GT(skel->bss->ca2_cnt, 0, "ca2_ca2_cnt");
428
429 bpf_link__destroy(link);
430 out:
431 tcp_ca_update__destroy(skel);
432 }
433
test_update_wrong(void)434 static void test_update_wrong(void)
435 {
436 struct cb_opts cb_opts = {
437 .cc = "tcp_ca_update",
438 };
439 struct network_helper_opts opts = {
440 .post_socket_cb = cc_cb,
441 .cb_opts = &cb_opts,
442 };
443 struct tcp_ca_update *skel;
444 struct bpf_link *link;
445 int saved_ca1_cnt;
446 int err;
447
448 skel = tcp_ca_update__open_and_load();
449 if (!ASSERT_OK_PTR(skel, "open"))
450 return;
451
452 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
453 if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
454 goto out;
455
456 do_test(&opts);
457 saved_ca1_cnt = skel->bss->ca1_cnt;
458 ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
459
460 err = bpf_link__update_map(link, skel->maps.ca_wrong);
461 ASSERT_ERR(err, "update_map");
462
463 do_test(&opts);
464 ASSERT_GT(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
465
466 bpf_link__destroy(link);
467 out:
468 tcp_ca_update__destroy(skel);
469 }
470
test_mixed_links(void)471 static void test_mixed_links(void)
472 {
473 struct cb_opts cb_opts = {
474 .cc = "tcp_ca_update",
475 };
476 struct network_helper_opts opts = {
477 .post_socket_cb = cc_cb,
478 .cb_opts = &cb_opts,
479 };
480 struct tcp_ca_update *skel;
481 struct bpf_link *link, *link_nl;
482 int err;
483
484 skel = tcp_ca_update__open_and_load();
485 if (!ASSERT_OK_PTR(skel, "open"))
486 return;
487
488 link_nl = bpf_map__attach_struct_ops(skel->maps.ca_no_link);
489 if (!ASSERT_OK_PTR(link_nl, "attach_struct_ops_nl"))
490 goto out;
491
492 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
493 ASSERT_OK_PTR(link, "attach_struct_ops");
494
495 do_test(&opts);
496 ASSERT_GT(skel->bss->ca1_cnt, 0, "ca1_ca1_cnt");
497
498 err = bpf_link__update_map(link, skel->maps.ca_no_link);
499 ASSERT_ERR(err, "update_map");
500
501 bpf_link__destroy(link);
502 bpf_link__destroy(link_nl);
503 out:
504 tcp_ca_update__destroy(skel);
505 }
506
test_multi_links(void)507 static void test_multi_links(void)
508 {
509 struct tcp_ca_update *skel;
510 struct bpf_link *link;
511
512 skel = tcp_ca_update__open_and_load();
513 if (!ASSERT_OK_PTR(skel, "open"))
514 return;
515
516 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
517 ASSERT_OK_PTR(link, "attach_struct_ops_1st");
518 bpf_link__destroy(link);
519
520 /* A map should be able to be used to create links multiple
521 * times.
522 */
523 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
524 ASSERT_OK_PTR(link, "attach_struct_ops_2nd");
525 bpf_link__destroy(link);
526
527 tcp_ca_update__destroy(skel);
528 }
529
test_link_replace(void)530 static void test_link_replace(void)
531 {
532 DECLARE_LIBBPF_OPTS(bpf_link_update_opts, opts);
533 struct tcp_ca_update *skel;
534 struct bpf_link *link;
535 int err;
536
537 skel = tcp_ca_update__open_and_load();
538 if (!ASSERT_OK_PTR(skel, "open"))
539 return;
540
541 link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
542 ASSERT_OK_PTR(link, "attach_struct_ops_1st");
543 bpf_link__destroy(link);
544
545 link = bpf_map__attach_struct_ops(skel->maps.ca_update_2);
546 if (!ASSERT_OK_PTR(link, "attach_struct_ops_2nd"))
547 goto out;
548
549 /* BPF_F_REPLACE with a wrong old map Fd. It should fail!
550 *
551 * With BPF_F_REPLACE, the link should be updated only if the
552 * old map fd given here matches the map backing the link.
553 */
554 opts.old_map_fd = bpf_map__fd(skel->maps.ca_update_1);
555 opts.flags = BPF_F_REPLACE;
556 err = bpf_link_update(bpf_link__fd(link),
557 bpf_map__fd(skel->maps.ca_update_1),
558 &opts);
559 ASSERT_ERR(err, "bpf_link_update_fail");
560
561 /* BPF_F_REPLACE with a correct old map Fd. It should success! */
562 opts.old_map_fd = bpf_map__fd(skel->maps.ca_update_2);
563 err = bpf_link_update(bpf_link__fd(link),
564 bpf_map__fd(skel->maps.ca_update_1),
565 &opts);
566 ASSERT_OK(err, "bpf_link_update_success");
567
568 bpf_link__destroy(link);
569
570 out:
571 tcp_ca_update__destroy(skel);
572 }
573
test_tcp_ca_kfunc(void)574 static void test_tcp_ca_kfunc(void)
575 {
576 struct tcp_ca_kfunc *skel;
577
578 skel = tcp_ca_kfunc__open_and_load();
579 ASSERT_OK_PTR(skel, "tcp_ca_kfunc__open_and_load");
580 tcp_ca_kfunc__destroy(skel);
581 }
582
test_untrusted_btf_write(void)583 static void test_untrusted_btf_write(void)
584 {
585 struct tcp_ca_untrusted_btf_write *skel;
586
587 skel = tcp_ca_untrusted_btf_write__open_and_load();
588 ASSERT_ERR_PTR(skel, "tcp_ca_untrusted_btf_write__open_and_load");
589 tcp_ca_untrusted_btf_write__destroy(skel);
590 }
591
test_cc_cubic(void)592 static void test_cc_cubic(void)
593 {
594 struct cb_opts cb_opts = {
595 .cc = "bpf_cc_cubic",
596 };
597 struct network_helper_opts opts = {
598 .post_socket_cb = cc_cb,
599 .cb_opts = &cb_opts,
600 };
601 struct bpf_cc_cubic *cc_cubic_skel;
602 struct bpf_link *link;
603
604 cc_cubic_skel = bpf_cc_cubic__open_and_load();
605 if (!ASSERT_OK_PTR(cc_cubic_skel, "bpf_cc_cubic__open_and_load"))
606 return;
607
608 link = bpf_map__attach_struct_ops(cc_cubic_skel->maps.cc_cubic);
609 if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
610 bpf_cc_cubic__destroy(cc_cubic_skel);
611 return;
612 }
613
614 do_test(&opts);
615
616 bpf_link__destroy(link);
617 bpf_cc_cubic__destroy(cc_cubic_skel);
618 }
619
test_bpf_tcp_ca(void)620 void test_bpf_tcp_ca(void)
621 {
622 if (test__start_subtest("dctcp"))
623 test_dctcp();
624 if (test__start_subtest("cubic"))
625 test_cubic();
626 if (test__start_subtest("invalid_license"))
627 test_invalid_license();
628 if (test__start_subtest("dctcp_fallback"))
629 test_dctcp_fallback();
630 if (test__start_subtest("rel_setsockopt"))
631 test_rel_setsockopt();
632 if (test__start_subtest("write_sk_pacing"))
633 test_write_sk_pacing();
634 if (test__start_subtest("incompl_cong_ops"))
635 test_incompl_cong_ops();
636 if (test__start_subtest("unsupp_cong_op"))
637 test_unsupp_cong_op();
638 if (test__start_subtest("update_ca"))
639 test_update_ca();
640 if (test__start_subtest("update_wrong"))
641 test_update_wrong();
642 if (test__start_subtest("mixed_links"))
643 test_mixed_links();
644 if (test__start_subtest("multi_links"))
645 test_multi_links();
646 if (test__start_subtest("link_replace"))
647 test_link_replace();
648 if (test__start_subtest("tcp_ca_kfunc"))
649 test_tcp_ca_kfunc();
650 if (test__start_subtest("untrusted_btf_write"))
651 test_untrusted_btf_write();
652 if (test__start_subtest("cc_cubic"))
653 test_cc_cubic();
654 if (test__start_subtest("dctcp_autoattach_map"))
655 test_dctcp_autoattach_map();
656 }
657