tools/testing/selftests/bpf/prog_tests/sockmap_basic.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2020 Cloudflare
   3 #include <error.h>
   4 #include <netinet/tcp.h>
   5 #include <sys/epoll.h>
   6
   7 #include "test_progs.h"
   8 #include "test_skmsg_load_helpers.skel.h"
   9 #include "test_sockmap_update.skel.h"
  10 #include "test_sockmap_invalid_update.skel.h"
  11 #include "test_sockmap_skb_verdict_attach.skel.h"
  12 #include "test_sockmap_progs_query.skel.h"
  13 #include "test_sockmap_pass_prog.skel.h"
  14 #include "test_sockmap_drop_prog.skel.h"
  15 #include "test_sockmap_change_tail.skel.h"
  16 #include "bpf_iter_sockmap.skel.h"
  17
  18 #include "sockmap_helpers.h"
  19
  20 #define TCP_REPAIR              19      /* TCP sock is under repair right now */
  21
  22 #define TCP_REPAIR_ON           1
  23 #define TCP_REPAIR_OFF_NO_WP    -1      /* Turn off without window probes */
  24
  25 static int connected_socket_v4(void)
  26 {
  27         struct sockaddr_in addr = {
  28                 .sin_family = AF_INET,
  29                 .sin_port = htons(80),
  30                 .sin_addr = { inet_addr("127.0.0.1") },
  31         };
  32         socklen_t len = sizeof(addr);
  33         int s, repair, err;
  34
  35         s = socket(AF_INET, SOCK_STREAM, 0);
  36         if (!ASSERT_GE(s, 0, "socket"))
  37                 goto error;
  38
  39         repair = TCP_REPAIR_ON;
  40         err = setsockopt(s, SOL_TCP, TCP_REPAIR, &repair, sizeof(repair));
  41         if (!ASSERT_OK(err, "setsockopt(TCP_REPAIR)"))
  42                 goto error;
  43
  44         err = connect(s, (struct sockaddr *)&addr, len);
  45         if (!ASSERT_OK(err, "connect"))
  46                 goto error;
  47
  48         repair = TCP_REPAIR_OFF_NO_WP;
  49         err = setsockopt(s, SOL_TCP, TCP_REPAIR, &repair, sizeof(repair));
  50         if (!ASSERT_OK(err, "setsockopt(TCP_REPAIR)"))
  51                 goto error;
  52
  53         return s;
  54 error:
  55         perror(__func__);
  56         close(s);
  57         return -1;
  58 }
  59
  60 static void compare_cookies(struct bpf_map *src, struct bpf_map *dst)
  61 {
  62         __u32 i, max_entries = bpf_map__max_entries(src);
  63         int err, src_fd, dst_fd;
  64
  65         src_fd = bpf_map__fd(src);
  66         dst_fd = bpf_map__fd(dst);
  67
  68         for (i = 0; i < max_entries; i++) {
  69                 __u64 src_cookie, dst_cookie;
  70
  71                 err = bpf_map_lookup_elem(src_fd, &i, &src_cookie);
  72                 if (err && errno == ENOENT) {
  73                         err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie);
  74                         ASSERT_ERR(err, "map_lookup_elem(dst)");
  75                         ASSERT_EQ(errno, ENOENT, "map_lookup_elem(dst)");
  76                         continue;
  77                 }
  78                 if (!ASSERT_OK(err, "lookup_elem(src)"))
  79                         continue;
  80
  81                 err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie);
  82                 if (!ASSERT_OK(err, "lookup_elem(dst)"))
  83                         continue;
  84
  85                 ASSERT_EQ(dst_cookie, src_cookie, "cookie mismatch");
  86         }
  87 }
  88
  89 /* Create a map, populate it with one socket, and free the map. */
  90 static void test_sockmap_create_update_free(enum bpf_map_type map_type)
  91 {
  92         const int zero = 0;
  93         int s, map, err;
  94
  95         s = connected_socket_v4();
  96         if (!ASSERT_GE(s, 0, "connected_socket_v4"))
  97                 return;
  98
  99         map = bpf_map_create(map_type, NULL, sizeof(int), sizeof(int), 1, NULL);
 100         if (!ASSERT_GE(map, 0, "bpf_map_create"))
 101                 goto out;
 102
 103         err = bpf_map_update_elem(map, &zero, &s, BPF_NOEXIST);
 104         if (!ASSERT_OK(err, "bpf_map_update"))
 105                 goto out;
 106
 107 out:
 108         close(map);
 109         close(s);
 110 }
 111
 112 static void test_sockmap_vsock_delete_on_close(void)
 113 {
 114         int err, c, p, map;
 115         const int zero = 0;
 116
 117         err = create_pair(AF_VSOCK, SOCK_STREAM, &c, &p);
 118         if (!ASSERT_OK(err, "create_pair(AF_VSOCK)"))
 119                 return;
 120
 121         map = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL, sizeof(int),
 122                              sizeof(int), 1, NULL);
 123         if (!ASSERT_GE(map, 0, "bpf_map_create")) {
 124                 close(c);
 125                 goto out;
 126         }
 127
 128         err = bpf_map_update_elem(map, &zero, &c, BPF_NOEXIST);
 129         close(c);
 130         if (!ASSERT_OK(err, "bpf_map_update"))
 131                 goto out;
 132
 133         err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
 134         ASSERT_OK(err, "after close(), bpf_map_update");
 135
 136 out:
 137         close(p);
 138         close(map);
 139 }
 140
 141 static void test_skmsg_helpers(enum bpf_map_type map_type)
 142 {
 143         struct test_skmsg_load_helpers *skel;
 144         int err, map, verdict;
 145
 146         skel = test_skmsg_load_helpers__open_and_load();
 147         if (!ASSERT_OK_PTR(skel, "test_skmsg_load_helpers__open_and_load"))
 148                 return;
 149
 150         verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
 151         map = bpf_map__fd(skel->maps.sock_map);
 152
 153         err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0);
 154         if (!ASSERT_OK(err, "bpf_prog_attach"))
 155                 goto out;
 156
 157         err = bpf_prog_detach2(verdict, map, BPF_SK_MSG_VERDICT);
 158         if (!ASSERT_OK(err, "bpf_prog_detach2"))
 159                 goto out;
 160 out:
 161         test_skmsg_load_helpers__destroy(skel);
 162 }
 163
 164 static void test_skmsg_helpers_with_link(enum bpf_map_type map_type)
 165 {
 166         struct bpf_program *prog, *prog_clone, *prog_clone2;
 167         DECLARE_LIBBPF_OPTS(bpf_link_update_opts, opts);
 168         struct test_skmsg_load_helpers *skel;
 169         struct bpf_link *link, *link2;
 170         int err, map;
 171
 172         skel = test_skmsg_load_helpers__open_and_load();
 173         if (!ASSERT_OK_PTR(skel, "test_skmsg_load_helpers__open_and_load"))
 174                 return;
 175
 176         prog = skel->progs.prog_msg_verdict;
 177         prog_clone = skel->progs.prog_msg_verdict_clone;
 178         prog_clone2 = skel->progs.prog_msg_verdict_clone2;
 179         map = bpf_map__fd(skel->maps.sock_map);
 180
 181         link = bpf_program__attach_sockmap(prog, map);
 182         if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
 183                 goto out;
 184
 185         /* Fail since bpf_link for the same prog has been created. */
 186         err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_MSG_VERDICT, 0);
 187         if (!ASSERT_ERR(err, "bpf_prog_attach"))
 188                 goto out;
 189
 190         /* Fail since bpf_link for the same prog type has been created. */
 191         link2 = bpf_program__attach_sockmap(prog_clone, map);
 192         if (!ASSERT_ERR_PTR(link2, "bpf_program__attach_sockmap")) {
 193                 bpf_link__detach(link2);
 194                 goto out;
 195         }
 196
 197         err = bpf_link__update_program(link, prog_clone);
 198         if (!ASSERT_OK(err, "bpf_link__update_program"))
 199                 goto out;
 200
 201         /* Fail since a prog with different type attempts to do update. */
 202         err = bpf_link__update_program(link, skel->progs.prog_skb_verdict);
 203         if (!ASSERT_ERR(err, "bpf_link__update_program"))
 204                 goto out;
 205
 206         /* Fail since the old prog does not match the one in the kernel. */
 207         opts.old_prog_fd = bpf_program__fd(prog_clone2);
 208         opts.flags = BPF_F_REPLACE;
 209         err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts);
 210         if (!ASSERT_ERR(err, "bpf_link_update"))
 211                 goto out;
 212
 213         opts.old_prog_fd = bpf_program__fd(prog_clone);
 214         opts.flags = BPF_F_REPLACE;
 215         err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts);
 216         if (!ASSERT_OK(err, "bpf_link_update"))
 217                 goto out;
 218 out:
 219         bpf_link__detach(link);
 220         test_skmsg_load_helpers__destroy(skel);
 221 }
 222
 223 static void test_sockmap_update(enum bpf_map_type map_type)
 224 {
 225         int err, prog, src;
 226         struct test_sockmap_update *skel;
 227         struct bpf_map *dst_map;
 228         const __u32 zero = 0;
 229         char dummy[14] = {0};
 230         LIBBPF_OPTS(bpf_test_run_opts, topts,
 231                 .data_in = dummy,
 232                 .data_size_in = sizeof(dummy),
 233                 .repeat = 1,
 234         );
 235         __s64 sk;
 236
 237         sk = connected_socket_v4();
 238         if (!ASSERT_NEQ(sk, -1, "connected_socket_v4"))
 239                 return;
 240
 241         skel = test_sockmap_update__open_and_load();
 242         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 243                 goto close_sk;
 244
 245         prog = bpf_program__fd(skel->progs.copy_sock_map);
 246         src = bpf_map__fd(skel->maps.src);
 247         if (map_type == BPF_MAP_TYPE_SOCKMAP)
 248                 dst_map = skel->maps.dst_sock_map;
 249         else
 250                 dst_map = skel->maps.dst_sock_hash;
 251
 252         err = bpf_map_update_elem(src, &zero, &sk, BPF_NOEXIST);
 253         if (!ASSERT_OK(err, "update_elem(src)"))
 254                 goto out;
 255
 256         err = bpf_prog_test_run_opts(prog, &topts);
 257         if (!ASSERT_OK(err, "test_run"))
 258                 goto out;
 259         if (!ASSERT_NEQ(topts.retval, 0, "test_run retval"))
 260                 goto out;
 261
 262         compare_cookies(skel->maps.src, dst_map);
 263
 264 out:
 265         test_sockmap_update__destroy(skel);
 266 close_sk:
 267         close(sk);
 268 }
 269
 270 static void test_sockmap_invalid_update(void)
 271 {
 272         struct test_sockmap_invalid_update *skel;
 273
 274         skel = test_sockmap_invalid_update__open_and_load();
 275         if (!ASSERT_NULL(skel, "open_and_load"))
 276                 test_sockmap_invalid_update__destroy(skel);
 277 }
 278
 279 static void test_sockmap_copy(enum bpf_map_type map_type)
 280 {
 281         DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 282         int err, len, src_fd, iter_fd;
 283         union bpf_iter_link_info linfo = {};
 284         __u32 i, num_sockets, num_elems;
 285         struct bpf_iter_sockmap *skel;
 286         __s64 *sock_fd = NULL;
 287         struct bpf_link *link;
 288         struct bpf_map *src;
 289         char buf[64];
 290
 291         skel = bpf_iter_sockmap__open_and_load();
 292         if (!ASSERT_OK_PTR(skel, "bpf_iter_sockmap__open_and_load"))
 293                 return;
 294
 295         if (map_type == BPF_MAP_TYPE_SOCKMAP) {
 296                 src = skel->maps.sockmap;
 297                 num_elems = bpf_map__max_entries(src);
 298                 num_sockets = num_elems - 1;
 299         } else {
 300                 src = skel->maps.sockhash;
 301                 num_elems = bpf_map__max_entries(src) - 1;
 302                 num_sockets = num_elems;
 303         }
 304
 305         sock_fd = calloc(num_sockets, sizeof(*sock_fd));
 306         if (!ASSERT_OK_PTR(sock_fd, "calloc(sock_fd)"))
 307                 goto out;
 308
 309         for (i = 0; i < num_sockets; i++)
 310                 sock_fd[i] = -1;
 311
 312         src_fd = bpf_map__fd(src);
 313
 314         for (i = 0; i < num_sockets; i++) {
 315                 sock_fd[i] = connected_socket_v4();
 316                 if (!ASSERT_NEQ(sock_fd[i], -1, "connected_socket_v4"))
 317                         goto out;
 318
 319                 err = bpf_map_update_elem(src_fd, &i, &sock_fd[i], BPF_NOEXIST);
 320                 if (!ASSERT_OK(err, "map_update"))
 321                         goto out;
 322         }
 323
 324         linfo.map.map_fd = src_fd;
 325         opts.link_info = &linfo;
 326         opts.link_info_len = sizeof(linfo);
 327         link = bpf_program__attach_iter(skel->progs.copy, &opts);
 328         if (!ASSERT_OK_PTR(link, "attach_iter"))
 329                 goto out;
 330
 331         iter_fd = bpf_iter_create(bpf_link__fd(link));
 332         if (!ASSERT_GE(iter_fd, 0, "create_iter"))
 333                 goto free_link;
 334
 335         /* do some tests */
 336         while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
 337                 ;
 338         if (!ASSERT_GE(len, 0, "read"))
 339                 goto close_iter;
 340
 341         /* test results */
 342         if (!ASSERT_EQ(skel->bss->elems, num_elems, "elems"))
 343                 goto close_iter;
 344
 345         if (!ASSERT_EQ(skel->bss->socks, num_sockets, "socks"))
 346                 goto close_iter;
 347
 348         compare_cookies(src, skel->maps.dst);
 349
 350 close_iter:
 351         close(iter_fd);
 352 free_link:
 353         bpf_link__destroy(link);
 354 out:
 355         for (i = 0; sock_fd && i < num_sockets; i++)
 356                 if (sock_fd[i] >= 0)
 357                         close(sock_fd[i]);
 358         if (sock_fd)
 359                 free(sock_fd);
 360         bpf_iter_sockmap__destroy(skel);
 361 }
 362
 363 static void test_sockmap_skb_verdict_attach(enum bpf_attach_type first,
 364                                             enum bpf_attach_type second)
 365 {
 366         struct test_sockmap_skb_verdict_attach *skel;
 367         int err, map, verdict;
 368
 369         skel = test_sockmap_skb_verdict_attach__open_and_load();
 370         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 371                 return;
 372
 373         verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
 374         map = bpf_map__fd(skel->maps.sock_map);
 375
 376         err = bpf_prog_attach(verdict, map, first, 0);
 377         if (!ASSERT_OK(err, "bpf_prog_attach"))
 378                 goto out;
 379
 380         err = bpf_prog_attach(verdict, map, second, 0);
 381         ASSERT_EQ(err, -EBUSY, "prog_attach_fail");
 382
 383         err = bpf_prog_detach2(verdict, map, first);
 384         if (!ASSERT_OK(err, "bpf_prog_detach2"))
 385                 goto out;
 386 out:
 387         test_sockmap_skb_verdict_attach__destroy(skel);
 388 }
 389
 390 static void test_sockmap_skb_verdict_attach_with_link(void)
 391 {
 392         struct test_sockmap_skb_verdict_attach *skel;
 393         struct bpf_program *prog;
 394         struct bpf_link *link;
 395         int err, map;
 396
 397         skel = test_sockmap_skb_verdict_attach__open_and_load();
 398         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 399                 return;
 400         prog = skel->progs.prog_skb_verdict;
 401         map = bpf_map__fd(skel->maps.sock_map);
 402         link = bpf_program__attach_sockmap(prog, map);
 403         if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
 404                 goto out;
 405
 406         bpf_link__detach(link);
 407
 408         err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT, 0);
 409         if (!ASSERT_OK(err, "bpf_prog_attach"))
 410                 goto out;
 411
 412         /* Fail since attaching with the same prog/map has been done. */
 413         link = bpf_program__attach_sockmap(prog, map);
 414         if (!ASSERT_ERR_PTR(link, "bpf_program__attach_sockmap"))
 415                 bpf_link__detach(link);
 416
 417         err = bpf_prog_detach2(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT);
 418         if (!ASSERT_OK(err, "bpf_prog_detach2"))
 419                 goto out;
 420 out:
 421         test_sockmap_skb_verdict_attach__destroy(skel);
 422 }
 423
 424 static __u32 query_prog_id(int prog_fd)
 425 {
 426         struct bpf_prog_info info = {};
 427         __u32 info_len = sizeof(info);
 428         int err;
 429
 430         err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
 431         if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd") ||
 432             !ASSERT_EQ(info_len, sizeof(info), "bpf_prog_get_info_by_fd"))
 433                 return 0;
 434
 435         return info.id;
 436 }
 437
 438 static void test_sockmap_progs_query(enum bpf_attach_type attach_type)
 439 {
 440         struct test_sockmap_progs_query *skel;
 441         int err, map_fd, verdict_fd;
 442         __u32 attach_flags = 0;
 443         __u32 prog_ids[3] = {};
 444         __u32 prog_cnt = 3;
 445
 446         skel = test_sockmap_progs_query__open_and_load();
 447         if (!ASSERT_OK_PTR(skel, "test_sockmap_progs_query__open_and_load"))
 448                 return;
 449
 450         map_fd = bpf_map__fd(skel->maps.sock_map);
 451
 452         if (attach_type == BPF_SK_MSG_VERDICT)
 453                 verdict_fd = bpf_program__fd(skel->progs.prog_skmsg_verdict);
 454         else
 455                 verdict_fd = bpf_program__fd(skel->progs.prog_skb_verdict);
 456
 457         err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */,
 458                              &attach_flags, prog_ids, &prog_cnt);
 459         ASSERT_OK(err, "bpf_prog_query failed");
 460         ASSERT_EQ(attach_flags,  0, "wrong attach_flags on query");
 461         ASSERT_EQ(prog_cnt, 0, "wrong program count on query");
 462
 463         err = bpf_prog_attach(verdict_fd, map_fd, attach_type, 0);
 464         if (!ASSERT_OK(err, "bpf_prog_attach failed"))
 465                 goto out;
 466
 467         prog_cnt = 1;
 468         err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */,
 469                              &attach_flags, prog_ids, &prog_cnt);
 470         ASSERT_OK(err, "bpf_prog_query failed");
 471         ASSERT_EQ(attach_flags, 0, "wrong attach_flags on query");
 472         ASSERT_EQ(prog_cnt, 1, "wrong program count on query");
 473         ASSERT_EQ(prog_ids[0], query_prog_id(verdict_fd),
 474                   "wrong prog_ids on query");
 475
 476         bpf_prog_detach2(verdict_fd, map_fd, attach_type);
 477 out:
 478         test_sockmap_progs_query__destroy(skel);
 479 }
 480
 481 #define MAX_EVENTS 10
 482 static void test_sockmap_skb_verdict_shutdown(void)
 483 {
 484         int n, err, map, verdict, c1 = -1, p1 = -1;
 485         struct epoll_event ev, events[MAX_EVENTS];
 486         struct test_sockmap_pass_prog *skel;
 487         int zero = 0;
 488         int epollfd;
 489         char b;
 490
 491         skel = test_sockmap_pass_prog__open_and_load();
 492         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 493                 return;
 494
 495         verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
 496         map = bpf_map__fd(skel->maps.sock_map_rx);
 497
 498         err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
 499         if (!ASSERT_OK(err, "bpf_prog_attach"))
 500                 goto out;
 501
 502         err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
 503         if (err < 0)
 504                 goto out;
 505
 506         err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
 507         if (err < 0)
 508                 goto out_close;
 509
 510         shutdown(p1, SHUT_WR);
 511
 512         ev.events = EPOLLIN;
 513         ev.data.fd = c1;
 514
 515         epollfd = epoll_create1(0);
 516         if (!ASSERT_GT(epollfd, -1, "epoll_create(0)"))
 517                 goto out_close;
 518         err = epoll_ctl(epollfd, EPOLL_CTL_ADD, c1, &ev);
 519         if (!ASSERT_OK(err, "epoll_ctl(EPOLL_CTL_ADD)"))
 520                 goto out_close;
 521         err = epoll_wait(epollfd, events, MAX_EVENTS, -1);
 522         if (!ASSERT_EQ(err, 1, "epoll_wait(fd)"))
 523                 goto out_close;
 524
 525         n = recv(c1, &b, 1, SOCK_NONBLOCK);
 526         ASSERT_EQ(n, 0, "recv_timeout(fin)");
 527 out_close:
 528         close(c1);
 529         close(p1);
 530 out:
 531         test_sockmap_pass_prog__destroy(skel);
 532 }
 533
 534 static void test_sockmap_stream_pass(void)
 535 {
 536         int zero = 0, sent, recvd;
 537         int verdict, parser;
 538         int err, map;
 539         int c = -1, p = -1;
 540         struct test_sockmap_pass_prog *pass = NULL;
 541         char snd[256] = "0123456789";
 542         char rcv[256] = "0";
 543
 544         pass = test_sockmap_pass_prog__open_and_load();
 545         verdict = bpf_program__fd(pass->progs.prog_skb_verdict);
 546         parser = bpf_program__fd(pass->progs.prog_skb_parser);
 547         map = bpf_map__fd(pass->maps.sock_map_rx);
 548
 549         err = bpf_prog_attach(parser, map, BPF_SK_SKB_STREAM_PARSER, 0);
 550         if (!ASSERT_OK(err, "bpf_prog_attach stream parser"))
 551                 goto out;
 552
 553         err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
 554         if (!ASSERT_OK(err, "bpf_prog_attach stream verdict"))
 555                 goto out;
 556
 557         err = create_pair(AF_INET, SOCK_STREAM, &c, &p);
 558         if (err)
 559                 goto out;
 560
 561         /* sk_data_ready of 'p' will be replaced by strparser handler */
 562         err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
 563         if (!ASSERT_OK(err, "bpf_map_update_elem(p)"))
 564                 goto out_close;
 565
 566         /*
 567          * as 'prog_skb_parser' return the original skb len and
 568          * 'prog_skb_verdict' return SK_PASS, the kernel will just
 569          * pass it through to original socket 'p'
 570          */
 571         sent = xsend(c, snd, sizeof(snd), 0);
 572         ASSERT_EQ(sent, sizeof(snd), "xsend(c)");
 573
 574         recvd = recv_timeout(p, rcv, sizeof(rcv), SOCK_NONBLOCK,
 575                              IO_TIMEOUT_SEC);
 576         ASSERT_EQ(recvd, sizeof(rcv), "recv_timeout(p)");
 577
 578 out_close:
 579         close(c);
 580         close(p);
 581
 582 out:
 583         test_sockmap_pass_prog__destroy(pass);
 584 }
 585
 586 static void test_sockmap_skb_verdict_fionread(bool pass_prog)
 587 {
 588         int err, map, verdict, c0 = -1, c1 = -1, p0 = -1, p1 = -1;
 589         int expected, zero = 0, sent, recvd, avail;
 590         struct test_sockmap_pass_prog *pass = NULL;
 591         struct test_sockmap_drop_prog *drop = NULL;
 592         char buf[256] = "0123456789";
 593
 594         if (pass_prog) {
 595                 pass = test_sockmap_pass_prog__open_and_load();
 596                 if (!ASSERT_OK_PTR(pass, "open_and_load"))
 597                         return;
 598                 verdict = bpf_program__fd(pass->progs.prog_skb_verdict);
 599                 map = bpf_map__fd(pass->maps.sock_map_rx);
 600                 expected = sizeof(buf);
 601         } else {
 602                 drop = test_sockmap_drop_prog__open_and_load();
 603                 if (!ASSERT_OK_PTR(drop, "open_and_load"))
 604                         return;
 605                 verdict = bpf_program__fd(drop->progs.prog_skb_verdict);
 606                 map = bpf_map__fd(drop->maps.sock_map_rx);
 607                 /* On drop data is consumed immediately and copied_seq inc'd */
 608                 expected = 0;
 609         }
 610
 611
 612         err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
 613         if (!ASSERT_OK(err, "bpf_prog_attach"))
 614                 goto out;
 615
 616         err = create_socket_pairs(AF_INET, SOCK_STREAM, &c0, &c1, &p0, &p1);
 617         if (!ASSERT_OK(err, "create_socket_pairs()"))
 618                 goto out;
 619
 620         err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
 621         if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
 622                 goto out_close;
 623
 624         sent = xsend(p1, &buf, sizeof(buf), 0);
 625         ASSERT_EQ(sent, sizeof(buf), "xsend(p0)");
 626         err = ioctl(c1, FIONREAD, &avail);
 627         ASSERT_OK(err, "ioctl(FIONREAD) error");
 628         ASSERT_EQ(avail, expected, "ioctl(FIONREAD)");
 629         /* On DROP test there will be no data to read */
 630         if (pass_prog) {
 631                 recvd = recv_timeout(c1, &buf, sizeof(buf), SOCK_NONBLOCK, IO_TIMEOUT_SEC);
 632                 ASSERT_EQ(recvd, sizeof(buf), "recv_timeout(c0)");
 633         }
 634
 635 out_close:
 636         close(c0);
 637         close(p0);
 638         close(c1);
 639         close(p1);
 640 out:
 641         if (pass_prog)
 642                 test_sockmap_pass_prog__destroy(pass);
 643         else
 644                 test_sockmap_drop_prog__destroy(drop);
 645 }
 646
 647 static void test_sockmap_skb_verdict_change_tail(void)
 648 {
 649         struct test_sockmap_change_tail *skel;
 650         int err, map, verdict;
 651         int c1, p1, sent, recvd;
 652         int zero = 0;
 653         char buf[2];
 654
 655         skel = test_sockmap_change_tail__open_and_load();
 656         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 657                 return;
 658         verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
 659         map = bpf_map__fd(skel->maps.sock_map_rx);
 660
 661         err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
 662         if (!ASSERT_OK(err, "bpf_prog_attach"))
 663                 goto out;
 664         err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
 665         if (!ASSERT_OK(err, "create_pair()"))
 666                 goto out;
 667         err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
 668         if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
 669                 goto out_close;
 670         sent = xsend(p1, "Tr", 2, 0);
 671         ASSERT_EQ(sent, 2, "xsend(p1)");
 672         recvd = recv(c1, buf, 2, 0);
 673         ASSERT_EQ(recvd, 1, "recv(c1)");
 674         ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
 675
 676         sent = xsend(p1, "G", 1, 0);
 677         ASSERT_EQ(sent, 1, "xsend(p1)");
 678         recvd = recv(c1, buf, 2, 0);
 679         ASSERT_EQ(recvd, 2, "recv(c1)");
 680         ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
 681
 682         sent = xsend(p1, "E", 1, 0);
 683         ASSERT_EQ(sent, 1, "xsend(p1)");
 684         recvd = recv(c1, buf, 1, 0);
 685         ASSERT_EQ(recvd, 1, "recv(c1)");
 686         ASSERT_EQ(skel->data->change_tail_ret, -EINVAL, "change_tail_ret");
 687
 688 out_close:
 689         close(c1);
 690         close(p1);
 691 out:
 692         test_sockmap_change_tail__destroy(skel);
 693 }
 694
 695 static void test_sockmap_skb_verdict_peek_helper(int map)
 696 {
 697         int err, c1, p1, zero = 0, sent, recvd, avail;
 698         char snd[256] = "0123456789";
 699         char rcv[256] = "0";
 700
 701         err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
 702         if (!ASSERT_OK(err, "create_pair()"))
 703                 return;
 704
 705         err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
 706         if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
 707                 goto out_close;
 708
 709         sent = xsend(p1, snd, sizeof(snd), 0);
 710         ASSERT_EQ(sent, sizeof(snd), "xsend(p1)");
 711         recvd = recv(c1, rcv, sizeof(rcv), MSG_PEEK);
 712         ASSERT_EQ(recvd, sizeof(rcv), "recv(c1)");
 713         err = ioctl(c1, FIONREAD, &avail);
 714         ASSERT_OK(err, "ioctl(FIONREAD) error");
 715         ASSERT_EQ(avail, sizeof(snd), "after peek ioctl(FIONREAD)");
 716         recvd = recv(c1, rcv, sizeof(rcv), 0);
 717         ASSERT_EQ(recvd, sizeof(rcv), "recv(p0)");
 718         err = ioctl(c1, FIONREAD, &avail);
 719         ASSERT_OK(err, "ioctl(FIONREAD) error");
 720         ASSERT_EQ(avail, 0, "after read ioctl(FIONREAD)");
 721
 722 out_close:
 723         close(c1);
 724         close(p1);
 725 }
 726
 727 static void test_sockmap_skb_verdict_peek(void)
 728 {
 729         struct test_sockmap_pass_prog *pass;
 730         int err, map, verdict;
 731
 732         pass = test_sockmap_pass_prog__open_and_load();
 733         if (!ASSERT_OK_PTR(pass, "open_and_load"))
 734                 return;
 735         verdict = bpf_program__fd(pass->progs.prog_skb_verdict);
 736         map = bpf_map__fd(pass->maps.sock_map_rx);
 737
 738         err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
 739         if (!ASSERT_OK(err, "bpf_prog_attach"))
 740                 goto out;
 741
 742         test_sockmap_skb_verdict_peek_helper(map);
 743
 744 out:
 745         test_sockmap_pass_prog__destroy(pass);
 746 }
 747
 748 static void test_sockmap_skb_verdict_peek_with_link(void)
 749 {
 750         struct test_sockmap_pass_prog *pass;
 751         struct bpf_program *prog;
 752         struct bpf_link *link;
 753         int err, map;
 754
 755         pass = test_sockmap_pass_prog__open_and_load();
 756         if (!ASSERT_OK_PTR(pass, "open_and_load"))
 757                 return;
 758         prog = pass->progs.prog_skb_verdict;
 759         map = bpf_map__fd(pass->maps.sock_map_rx);
 760         link = bpf_program__attach_sockmap(prog, map);
 761         if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
 762                 goto out;
 763
 764         err = bpf_link__update_program(link, pass->progs.prog_skb_verdict_clone);
 765         if (!ASSERT_OK(err, "bpf_link__update_program"))
 766                 goto out;
 767
 768         /* Fail since a prog with different attach type attempts to do update. */
 769         err = bpf_link__update_program(link, pass->progs.prog_skb_parser);
 770         if (!ASSERT_ERR(err, "bpf_link__update_program"))
 771                 goto out;
 772
 773         test_sockmap_skb_verdict_peek_helper(map);
 774         ASSERT_EQ(pass->bss->clone_called, 1, "clone_called");
 775 out:
 776         bpf_link__detach(link);
 777         test_sockmap_pass_prog__destroy(pass);
 778 }
 779
 780 static void test_sockmap_unconnected_unix(void)
 781 {
 782         int err, map, stream = 0, dgram = 0, zero = 0;
 783         struct test_sockmap_pass_prog *skel;
 784
 785         skel = test_sockmap_pass_prog__open_and_load();
 786         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 787                 return;
 788
 789         map = bpf_map__fd(skel->maps.sock_map_rx);
 790
 791         stream = xsocket(AF_UNIX, SOCK_STREAM, 0);
 792         if (stream < 0)
 793                 return;
 794
 795         dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
 796         if (dgram < 0) {
 797                 close(stream);
 798                 return;
 799         }
 800
 801         err = bpf_map_update_elem(map, &zero, &stream, BPF_ANY);
 802         ASSERT_ERR(err, "bpf_map_update_elem(stream)");
 803
 804         err = bpf_map_update_elem(map, &zero, &dgram, BPF_ANY);
 805         ASSERT_OK(err, "bpf_map_update_elem(dgram)");
 806
 807         close(stream);
 808         close(dgram);
 809 }
 810
 811 static void test_sockmap_many_socket(void)
 812 {
 813         struct test_sockmap_pass_prog *skel;
 814         int stream[2], dgram, udp, tcp;
 815         int i, err, map, entry = 0;
 816
 817         skel = test_sockmap_pass_prog__open_and_load();
 818         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 819                 return;
 820
 821         map = bpf_map__fd(skel->maps.sock_map_rx);
 822
 823         dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
 824         if (dgram < 0) {
 825                 test_sockmap_pass_prog__destroy(skel);
 826                 return;
 827         }
 828
 829         tcp = connected_socket_v4();
 830         if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
 831                 close(dgram);
 832                 test_sockmap_pass_prog__destroy(skel);
 833                 return;
 834         }
 835
 836         udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
 837         if (udp < 0) {
 838                 close(dgram);
 839                 close(tcp);
 840                 test_sockmap_pass_prog__destroy(skel);
 841                 return;
 842         }
 843
 844         err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
 845         ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
 846         if (err)
 847                 goto out;
 848
 849         for (i = 0; i < 2; i++, entry++) {
 850                 err = bpf_map_update_elem(map, &entry, &stream[0], BPF_ANY);
 851                 ASSERT_OK(err, "bpf_map_update_elem(stream)");
 852         }
 853         for (i = 0; i < 2; i++, entry++) {
 854                 err = bpf_map_update_elem(map, &entry, &dgram, BPF_ANY);
 855                 ASSERT_OK(err, "bpf_map_update_elem(dgram)");
 856         }
 857         for (i = 0; i < 2; i++, entry++) {
 858                 err = bpf_map_update_elem(map, &entry, &udp, BPF_ANY);
 859                 ASSERT_OK(err, "bpf_map_update_elem(udp)");
 860         }
 861         for (i = 0; i < 2; i++, entry++) {
 862                 err = bpf_map_update_elem(map, &entry, &tcp, BPF_ANY);
 863                 ASSERT_OK(err, "bpf_map_update_elem(tcp)");
 864         }
 865         for (entry--; entry >= 0; entry--) {
 866                 err = bpf_map_delete_elem(map, &entry);
 867                 ASSERT_OK(err, "bpf_map_delete_elem(entry)");
 868         }
 869
 870         close(stream[0]);
 871         close(stream[1]);
 872 out:
 873         close(dgram);
 874         close(tcp);
 875         close(udp);
 876         test_sockmap_pass_prog__destroy(skel);
 877 }
 878
 879 static void test_sockmap_many_maps(void)
 880 {
 881         struct test_sockmap_pass_prog *skel;
 882         int stream[2], dgram, udp, tcp;
 883         int i, err, map[2], entry = 0;
 884
 885         skel = test_sockmap_pass_prog__open_and_load();
 886         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 887                 return;
 888
 889         map[0] = bpf_map__fd(skel->maps.sock_map_rx);
 890         map[1] = bpf_map__fd(skel->maps.sock_map_tx);
 891
 892         dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
 893         if (dgram < 0) {
 894                 test_sockmap_pass_prog__destroy(skel);
 895                 return;
 896         }
 897
 898         tcp = connected_socket_v4();
 899         if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
 900                 close(dgram);
 901                 test_sockmap_pass_prog__destroy(skel);
 902                 return;
 903         }
 904
 905         udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
 906         if (udp < 0) {
 907                 close(dgram);
 908                 close(tcp);
 909                 test_sockmap_pass_prog__destroy(skel);
 910                 return;
 911         }
 912
 913         err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
 914         ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
 915         if (err)
 916                 goto out;
 917
 918         for (i = 0; i < 2; i++, entry++) {
 919                 err = bpf_map_update_elem(map[i], &entry, &stream[0], BPF_ANY);
 920                 ASSERT_OK(err, "bpf_map_update_elem(stream)");
 921         }
 922         for (i = 0; i < 2; i++, entry++) {
 923                 err = bpf_map_update_elem(map[i], &entry, &dgram, BPF_ANY);
 924                 ASSERT_OK(err, "bpf_map_update_elem(dgram)");
 925         }
 926         for (i = 0; i < 2; i++, entry++) {
 927                 err = bpf_map_update_elem(map[i], &entry, &udp, BPF_ANY);
 928                 ASSERT_OK(err, "bpf_map_update_elem(udp)");
 929         }
 930         for (i = 0; i < 2; i++, entry++) {
 931                 err = bpf_map_update_elem(map[i], &entry, &tcp, BPF_ANY);
 932                 ASSERT_OK(err, "bpf_map_update_elem(tcp)");
 933         }
 934         for (entry--; entry >= 0; entry--) {
 935                 err = bpf_map_delete_elem(map[1], &entry);
 936                 entry--;
 937                 ASSERT_OK(err, "bpf_map_delete_elem(entry)");
 938                 err = bpf_map_delete_elem(map[0], &entry);
 939                 ASSERT_OK(err, "bpf_map_delete_elem(entry)");
 940         }
 941
 942         close(stream[0]);
 943         close(stream[1]);
 944 out:
 945         close(dgram);
 946         close(tcp);
 947         close(udp);
 948         test_sockmap_pass_prog__destroy(skel);
 949 }
 950
 951 static void test_sockmap_same_sock(void)
 952 {
 953         struct test_sockmap_pass_prog *skel;
 954         int stream[2], dgram, udp, tcp;
 955         int i, err, map, zero = 0;
 956
 957         skel = test_sockmap_pass_prog__open_and_load();
 958         if (!ASSERT_OK_PTR(skel, "open_and_load"))
 959                 return;
 960
 961         map = bpf_map__fd(skel->maps.sock_map_rx);
 962
 963         dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
 964         if (dgram < 0) {
 965                 test_sockmap_pass_prog__destroy(skel);
 966                 return;
 967         }
 968
 969         tcp = connected_socket_v4();
 970         if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
 971                 close(dgram);
 972                 test_sockmap_pass_prog__destroy(skel);
 973                 return;
 974         }
 975
 976         udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
 977         if (udp < 0) {
 978                 close(dgram);
 979                 close(tcp);
 980                 test_sockmap_pass_prog__destroy(skel);
 981                 return;
 982         }
 983
 984         err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
 985         ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
 986         if (err) {
 987                 close(tcp);
 988                 goto out;
 989         }
 990
 991         for (i = 0; i < 2; i++) {
 992                 err = bpf_map_update_elem(map, &zero, &stream[0], BPF_ANY);
 993                 ASSERT_OK(err, "bpf_map_update_elem(stream)");
 994         }
 995         for (i = 0; i < 2; i++) {
 996                 err = bpf_map_update_elem(map, &zero, &dgram, BPF_ANY);
 997                 ASSERT_OK(err, "bpf_map_update_elem(dgram)");
 998         }
 999         for (i = 0; i < 2; i++) {
1000                 err = bpf_map_update_elem(map, &zero, &udp, BPF_ANY);
1001                 ASSERT_OK(err, "bpf_map_update_elem(udp)");
1002         }
1003         for (i = 0; i < 2; i++) {
1004                 err = bpf_map_update_elem(map, &zero, &tcp, BPF_ANY);
1005                 ASSERT_OK(err, "bpf_map_update_elem(tcp)");
1006         }
1007
1008         close(tcp);
1009         err = bpf_map_delete_elem(map, &zero);
1010         ASSERT_ERR(err, "bpf_map_delete_elem(entry)");
1011
1012         close(stream[0]);
1013         close(stream[1]);
1014 out:
1015         close(dgram);
1016         close(udp);
1017         test_sockmap_pass_prog__destroy(skel);
1018 }
1019
1020 static void test_sockmap_skb_verdict_vsock_poll(void)
1021 {
1022         struct test_sockmap_pass_prog *skel;
1023         int err, map, conn, peer;
1024         struct bpf_program *prog;
1025         struct bpf_link *link;
1026         char buf = 'x';
1027         int zero = 0;
1028
1029         skel = test_sockmap_pass_prog__open_and_load();
1030         if (!ASSERT_OK_PTR(skel, "open_and_load"))
1031                 return;
1032
1033         if (create_pair(AF_VSOCK, SOCK_STREAM, &conn, &peer))
1034                 goto destroy;
1035
1036         prog = skel->progs.prog_skb_verdict;
1037         map = bpf_map__fd(skel->maps.sock_map_rx);
1038         link = bpf_program__attach_sockmap(prog, map);
1039         if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
1040                 goto close;
1041
1042         err = bpf_map_update_elem(map, &zero, &conn, BPF_ANY);
1043         if (!ASSERT_OK(err, "bpf_map_update_elem"))
1044                 goto detach;
1045
1046         if (xsend(peer, &buf, 1, 0) != 1)
1047                 goto detach;
1048
1049         err = poll_read(conn, IO_TIMEOUT_SEC);
1050         if (!ASSERT_OK(err, "poll"))
1051                 goto detach;
1052
1053         if (xrecv_nonblock(conn, &buf, 1, 0) != 1)
1054                 FAIL("xrecv_nonblock");
1055 detach:
1056         bpf_link__detach(link);
1057 close:
1058         xclose(conn);
1059         xclose(peer);
1060 destroy:
1061         test_sockmap_pass_prog__destroy(skel);
1062 }
1063
1064 void test_sockmap_basic(void)
1065 {
1066         if (test__start_subtest("sockmap create_update_free"))
1067                 test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKMAP);
1068         if (test__start_subtest("sockhash create_update_free"))
1069                 test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKHASH);
1070         if (test__start_subtest("sockmap vsock delete on close"))
1071                 test_sockmap_vsock_delete_on_close();
1072         if (test__start_subtest("sockmap sk_msg load helpers"))
1073                 test_skmsg_helpers(BPF_MAP_TYPE_SOCKMAP);
1074         if (test__start_subtest("sockhash sk_msg load helpers"))
1075                 test_skmsg_helpers(BPF_MAP_TYPE_SOCKHASH);
1076         if (test__start_subtest("sockmap update"))
1077                 test_sockmap_update(BPF_MAP_TYPE_SOCKMAP);
1078         if (test__start_subtest("sockhash update"))
1079                 test_sockmap_update(BPF_MAP_TYPE_SOCKHASH);
1080         if (test__start_subtest("sockmap update in unsafe context"))
1081                 test_sockmap_invalid_update();
1082         if (test__start_subtest("sockmap copy"))
1083                 test_sockmap_copy(BPF_MAP_TYPE_SOCKMAP);
1084         if (test__start_subtest("sockhash copy"))
1085                 test_sockmap_copy(BPF_MAP_TYPE_SOCKHASH);
1086         if (test__start_subtest("sockmap skb_verdict attach")) {
1087                 test_sockmap_skb_verdict_attach(BPF_SK_SKB_VERDICT,
1088                                                 BPF_SK_SKB_STREAM_VERDICT);
1089                 test_sockmap_skb_verdict_attach(BPF_SK_SKB_STREAM_VERDICT,
1090                                                 BPF_SK_SKB_VERDICT);
1091         }
1092         if (test__start_subtest("sockmap skb_verdict attach_with_link"))
1093                 test_sockmap_skb_verdict_attach_with_link();
1094         if (test__start_subtest("sockmap msg_verdict progs query"))
1095                 test_sockmap_progs_query(BPF_SK_MSG_VERDICT);
1096         if (test__start_subtest("sockmap stream_parser progs query"))
1097                 test_sockmap_progs_query(BPF_SK_SKB_STREAM_PARSER);
1098         if (test__start_subtest("sockmap stream_verdict progs query"))
1099                 test_sockmap_progs_query(BPF_SK_SKB_STREAM_VERDICT);
1100         if (test__start_subtest("sockmap skb_verdict progs query"))
1101                 test_sockmap_progs_query(BPF_SK_SKB_VERDICT);
1102         if (test__start_subtest("sockmap skb_verdict shutdown"))
1103                 test_sockmap_skb_verdict_shutdown();
1104         if (test__start_subtest("sockmap stream parser and verdict pass"))
1105                 test_sockmap_stream_pass();
1106         if (test__start_subtest("sockmap skb_verdict fionread"))
1107                 test_sockmap_skb_verdict_fionread(true);
1108         if (test__start_subtest("sockmap skb_verdict fionread on drop"))
1109                 test_sockmap_skb_verdict_fionread(false);
1110         if (test__start_subtest("sockmap skb_verdict change tail"))
1111                 test_sockmap_skb_verdict_change_tail();
1112         if (test__start_subtest("sockmap skb_verdict msg_f_peek"))
1113                 test_sockmap_skb_verdict_peek();
1114         if (test__start_subtest("sockmap skb_verdict msg_f_peek with link"))
1115                 test_sockmap_skb_verdict_peek_with_link();
1116         if (test__start_subtest("sockmap unconnected af_unix"))
1117                 test_sockmap_unconnected_unix();
1118         if (test__start_subtest("sockmap one socket to many map entries"))
1119                 test_sockmap_many_socket();
1120         if (test__start_subtest("sockmap one socket to many maps"))
1121                 test_sockmap_many_maps();
1122         if (test__start_subtest("sockmap same socket replace"))
1123                 test_sockmap_same_sock();
1124         if (test__start_subtest("sockmap sk_msg attach sockmap helpers with link"))
1125                 test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKMAP);
1126         if (test__start_subtest("sockhash sk_msg attach sockhash helpers with link"))
1127                 test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKHASH);
1128         if (test__start_subtest("sockmap skb_verdict vsock poll"))
1129                 test_sockmap_skb_verdict_vsock_poll();
1130 }