1
2
3#include <stdio.h>
4#include <stdlib.h>
5#include <sys/socket.h>
6#include <sys/ioctl.h>
7#include <sys/select.h>
8#include <netinet/in.h>
9#include <arpa/inet.h>
10#include <unistd.h>
11#include <string.h>
12#include <errno.h>
13#include <sys/ioctl.h>
14#include <stdbool.h>
15#include <signal.h>
16#include <fcntl.h>
17#include <sys/wait.h>
18#include <time.h>
19#include <sched.h>
20
21#include <sys/time.h>
22#include <sys/resource.h>
23#include <sys/types.h>
24#include <sys/sendfile.h>
25
26#include <linux/netlink.h>
27#include <linux/socket.h>
28#include <linux/sock_diag.h>
29#include <linux/bpf.h>
30#include <linux/if_link.h>
31#include <assert.h>
32#include <libgen.h>
33
34#include <getopt.h>
35
36#include <bpf/bpf.h>
37#include <bpf/libbpf.h>
38
39#include "bpf_util.h"
40#include "bpf_rlimit.h"
41#include "cgroup_helpers.h"
42
43int running;
44static void running_handler(int a);
45
46
47#define S1_PORT 10000
48#define S2_PORT 10001
49
50#define BPF_SOCKMAP_FILENAME "test_sockmap_kern.o"
51#define BPF_SOCKHASH_FILENAME "test_sockhash_kern.o"
52#define CG_PATH "/sockmap"
53
54
55int s1, s2, c1, c2, p1, p2;
56int test_cnt;
57int passed;
58int failed;
59int map_fd[8];
60struct bpf_map *maps[8];
61int prog_fd[11];
62
63int txmsg_pass;
64int txmsg_noisy;
65int txmsg_redir;
66int txmsg_redir_noisy;
67int txmsg_drop;
68int txmsg_apply;
69int txmsg_cork;
70int txmsg_start;
71int txmsg_end;
72int txmsg_ingress;
73int txmsg_skb;
74
75static const struct option long_options[] = {
76 {"help", no_argument, NULL, 'h' },
77 {"cgroup", required_argument, NULL, 'c' },
78 {"rate", required_argument, NULL, 'r' },
79 {"verbose", no_argument, NULL, 'v' },
80 {"iov_count", required_argument, NULL, 'i' },
81 {"length", required_argument, NULL, 'l' },
82 {"test", required_argument, NULL, 't' },
83 {"data_test", no_argument, NULL, 'd' },
84 {"txmsg", no_argument, &txmsg_pass, 1 },
85 {"txmsg_noisy", no_argument, &txmsg_noisy, 1 },
86 {"txmsg_redir", no_argument, &txmsg_redir, 1 },
87 {"txmsg_redir_noisy", no_argument, &txmsg_redir_noisy, 1},
88 {"txmsg_drop", no_argument, &txmsg_drop, 1 },
89 {"txmsg_apply", required_argument, NULL, 'a'},
90 {"txmsg_cork", required_argument, NULL, 'k'},
91 {"txmsg_start", required_argument, NULL, 's'},
92 {"txmsg_end", required_argument, NULL, 'e'},
93 {"txmsg_ingress", no_argument, &txmsg_ingress, 1 },
94 {"txmsg_skb", no_argument, &txmsg_skb, 1 },
95 {0, 0, NULL, 0 }
96};
97
98static void usage(char *argv[])
99{
100 int i;
101
102 printf(" Usage: %s --cgroup <cgroup_path>\n", argv[0]);
103 printf(" options:\n");
104 for (i = 0; long_options[i].name != 0; i++) {
105 printf(" --%-12s", long_options[i].name);
106 if (long_options[i].flag != NULL)
107 printf(" flag (internal value:%d)\n",
108 *long_options[i].flag);
109 else
110 printf(" -%c\n", long_options[i].val);
111 }
112 printf("\n");
113}
114
115static int sockmap_init_sockets(int verbose)
116{
117 int i, err, one = 1;
118 struct sockaddr_in addr;
119 int *fds[4] = {&s1, &s2, &c1, &c2};
120
121 s1 = s2 = p1 = p2 = c1 = c2 = 0;
122
123
124 for (i = 0; i < 4; i++) {
125 *fds[i] = socket(AF_INET, SOCK_STREAM, 0);
126 if (*fds[i] < 0) {
127 perror("socket s1 failed()");
128 return errno;
129 }
130 }
131
132
133 for (i = 0; i < 2; i++) {
134 err = setsockopt(*fds[i], SOL_SOCKET, SO_REUSEADDR,
135 (char *)&one, sizeof(one));
136 if (err) {
137 perror("setsockopt failed()");
138 return errno;
139 }
140 }
141
142
143 for (i = 0; i < 2; i++) {
144 err = ioctl(*fds[i], FIONBIO, (char *)&one);
145 if (err < 0) {
146 perror("ioctl s1 failed()");
147 return errno;
148 }
149 }
150
151
152 memset(&addr, 0, sizeof(struct sockaddr_in));
153 addr.sin_family = AF_INET;
154 addr.sin_addr.s_addr = inet_addr("127.0.0.1");
155
156 addr.sin_port = htons(S1_PORT);
157 err = bind(s1, (struct sockaddr *)&addr, sizeof(addr));
158 if (err < 0) {
159 perror("bind s1 failed()\n");
160 return errno;
161 }
162
163 addr.sin_port = htons(S2_PORT);
164 err = bind(s2, (struct sockaddr *)&addr, sizeof(addr));
165 if (err < 0) {
166 perror("bind s2 failed()\n");
167 return errno;
168 }
169
170
171 addr.sin_port = htons(S1_PORT);
172 err = listen(s1, 32);
173 if (err < 0) {
174 perror("listen s1 failed()\n");
175 return errno;
176 }
177
178 addr.sin_port = htons(S2_PORT);
179 err = listen(s2, 32);
180 if (err < 0) {
181 perror("listen s1 failed()\n");
182 return errno;
183 }
184
185
186 addr.sin_port = htons(S1_PORT);
187 err = connect(c1, (struct sockaddr *)&addr, sizeof(addr));
188 if (err < 0 && errno != EINPROGRESS) {
189 perror("connect c1 failed()\n");
190 return errno;
191 }
192
193 addr.sin_port = htons(S2_PORT);
194 err = connect(c2, (struct sockaddr *)&addr, sizeof(addr));
195 if (err < 0 && errno != EINPROGRESS) {
196 perror("connect c2 failed()\n");
197 return errno;
198 } else if (err < 0) {
199 err = 0;
200 }
201
202
203 p1 = accept(s1, NULL, NULL);
204 if (p1 < 0) {
205 perror("accept s1 failed()\n");
206 return errno;
207 }
208
209 p2 = accept(s2, NULL, NULL);
210 if (p2 < 0) {
211 perror("accept s1 failed()\n");
212 return errno;
213 }
214
215 if (verbose) {
216 printf("connected sockets: c1 <-> p1, c2 <-> p2\n");
217 printf("cgroups binding: c1(%i) <-> s1(%i) - - - c2(%i) <-> s2(%i)\n",
218 c1, s1, c2, s2);
219 }
220 return 0;
221}
222
223struct msg_stats {
224 size_t bytes_sent;
225 size_t bytes_recvd;
226 struct timespec start;
227 struct timespec end;
228};
229
230struct sockmap_options {
231 int verbose;
232 bool base;
233 bool sendpage;
234 bool data_test;
235 bool drop_expected;
236 int iov_count;
237 int iov_length;
238 int rate;
239};
240
241static int msg_loop_sendpage(int fd, int iov_length, int cnt,
242 struct msg_stats *s,
243 struct sockmap_options *opt)
244{
245 bool drop = opt->drop_expected;
246 unsigned char k = 0;
247 FILE *file;
248 int i, fp;
249
250 file = fopen(".sendpage_tst.tmp", "w+");
251 for (i = 0; i < iov_length * cnt; i++, k++)
252 fwrite(&k, sizeof(char), 1, file);
253 fflush(file);
254 fseek(file, 0, SEEK_SET);
255 fclose(file);
256
257 fp = open(".sendpage_tst.tmp", O_RDONLY);
258 clock_gettime(CLOCK_MONOTONIC, &s->start);
259 for (i = 0; i < cnt; i++) {
260 int sent = sendfile(fd, fp, NULL, iov_length);
261
262 if (!drop && sent < 0) {
263 perror("send loop error:");
264 close(fp);
265 return sent;
266 } else if (drop && sent >= 0) {
267 printf("sendpage loop error expected: %i\n", sent);
268 close(fp);
269 return -EIO;
270 }
271
272 if (sent > 0)
273 s->bytes_sent += sent;
274 }
275 clock_gettime(CLOCK_MONOTONIC, &s->end);
276 close(fp);
277 return 0;
278}
279
280static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
281 struct msg_stats *s, bool tx,
282 struct sockmap_options *opt)
283{
284 struct msghdr msg = {0};
285 int err, i, flags = MSG_NOSIGNAL;
286 struct iovec *iov;
287 unsigned char k;
288 bool data_test = opt->data_test;
289 bool drop = opt->drop_expected;
290
291 iov = calloc(iov_count, sizeof(struct iovec));
292 if (!iov)
293 return errno;
294
295 k = 0;
296 for (i = 0; i < iov_count; i++) {
297 unsigned char *d = calloc(iov_length, sizeof(char));
298
299 if (!d) {
300 fprintf(stderr, "iov_count %i/%i OOM\n", i, iov_count);
301 goto out_errno;
302 }
303 iov[i].iov_base = d;
304 iov[i].iov_len = iov_length;
305
306 if (data_test && tx) {
307 int j;
308
309 for (j = 0; j < iov_length; j++)
310 d[j] = k++;
311 }
312 }
313
314 msg.msg_iov = iov;
315 msg.msg_iovlen = iov_count;
316 k = 0;
317
318 if (tx) {
319 clock_gettime(CLOCK_MONOTONIC, &s->start);
320 for (i = 0; i < cnt; i++) {
321 int sent = sendmsg(fd, &msg, flags);
322
323 if (!drop && sent < 0) {
324 perror("send loop error:");
325 goto out_errno;
326 } else if (drop && sent >= 0) {
327 printf("send loop error expected: %i\n", sent);
328 errno = -EIO;
329 goto out_errno;
330 }
331 if (sent > 0)
332 s->bytes_sent += sent;
333 }
334 clock_gettime(CLOCK_MONOTONIC, &s->end);
335 } else {
336 int slct, recv, max_fd = fd;
337 int fd_flags = O_NONBLOCK;
338 struct timeval timeout;
339 float total_bytes;
340 int bytes_cnt = 0;
341 int chunk_sz;
342 fd_set w;
343
344 if (opt->sendpage)
345 chunk_sz = iov_length * cnt;
346 else
347 chunk_sz = iov_length * iov_count;
348
349 fcntl(fd, fd_flags);
350 total_bytes = (float)iov_count * (float)iov_length * (float)cnt;
351 err = clock_gettime(CLOCK_MONOTONIC, &s->start);
352 if (err < 0)
353 perror("recv start time: ");
354 while (s->bytes_recvd < total_bytes) {
355 if (txmsg_cork) {
356 timeout.tv_sec = 0;
357 timeout.tv_usec = 300000;
358 } else {
359 timeout.tv_sec = 1;
360 timeout.tv_usec = 0;
361 }
362
363
364 FD_ZERO(&w);
365 FD_SET(fd, &w);
366
367 slct = select(max_fd + 1, &w, NULL, NULL, &timeout);
368 if (slct == -1) {
369 perror("select()");
370 clock_gettime(CLOCK_MONOTONIC, &s->end);
371 goto out_errno;
372 } else if (!slct) {
373 if (opt->verbose)
374 fprintf(stderr, "unexpected timeout\n");
375 errno = -EIO;
376 clock_gettime(CLOCK_MONOTONIC, &s->end);
377 goto out_errno;
378 }
379
380 recv = recvmsg(fd, &msg, flags);
381 if (recv < 0) {
382 if (errno != EWOULDBLOCK) {
383 clock_gettime(CLOCK_MONOTONIC, &s->end);
384 perror("recv failed()\n");
385 goto out_errno;
386 }
387 }
388
389 s->bytes_recvd += recv;
390
391 if (data_test) {
392 int j;
393
394 for (i = 0; i < msg.msg_iovlen; i++) {
395 unsigned char *d = iov[i].iov_base;
396
397 for (j = 0;
398 j < iov[i].iov_len && recv; j++) {
399 if (d[j] != k++) {
400 errno = -EIO;
401 fprintf(stderr,
402 "detected data corruption @iov[%i]:%i %02x != %02x, %02x ?= %02x\n",
403 i, j, d[j], k - 1, d[j+1], k);
404 goto out_errno;
405 }
406 bytes_cnt++;
407 if (bytes_cnt == chunk_sz) {
408 k = 0;
409 bytes_cnt = 0;
410 }
411 recv--;
412 }
413 }
414 }
415 }
416 clock_gettime(CLOCK_MONOTONIC, &s->end);
417 }
418
419 for (i = 0; i < iov_count; i++)
420 free(iov[i].iov_base);
421 free(iov);
422 return 0;
423out_errno:
424 for (i = 0; i < iov_count; i++)
425 free(iov[i].iov_base);
426 free(iov);
427 return errno;
428}
429
430static float giga = 1000000000;
431
432static inline float sentBps(struct msg_stats s)
433{
434 return s.bytes_sent / (s.end.tv_sec - s.start.tv_sec);
435}
436
437static inline float recvdBps(struct msg_stats s)
438{
439 return s.bytes_recvd / (s.end.tv_sec - s.start.tv_sec);
440}
441
442static int sendmsg_test(struct sockmap_options *opt)
443{
444 float sent_Bps = 0, recvd_Bps = 0;
445 int rx_fd, txpid, rxpid, err = 0;
446 struct msg_stats s = {0};
447 int iov_count = opt->iov_count;
448 int iov_buf = opt->iov_length;
449 int rx_status, tx_status;
450 int cnt = opt->rate;
451
452 errno = 0;
453
454 if (opt->base)
455 rx_fd = p1;
456 else
457 rx_fd = p2;
458
459 rxpid = fork();
460 if (rxpid == 0) {
461 if (opt->drop_expected)
462 exit(0);
463
464 if (opt->sendpage)
465 iov_count = 1;
466 err = msg_loop(rx_fd, iov_count, iov_buf,
467 cnt, &s, false, opt);
468 if (err && opt->verbose)
469 fprintf(stderr,
470 "msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
471 iov_count, iov_buf, cnt, err);
472 shutdown(p2, SHUT_RDWR);
473 shutdown(p1, SHUT_RDWR);
474 if (s.end.tv_sec - s.start.tv_sec) {
475 sent_Bps = sentBps(s);
476 recvd_Bps = recvdBps(s);
477 }
478 if (opt->verbose)
479 fprintf(stdout,
480 "rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s\n",
481 s.bytes_sent, sent_Bps, sent_Bps/giga,
482 s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
483 if (err && txmsg_cork)
484 err = 0;
485 exit(err ? 1 : 0);
486 } else if (rxpid == -1) {
487 perror("msg_loop_rx: ");
488 return errno;
489 }
490
491 txpid = fork();
492 if (txpid == 0) {
493 if (opt->sendpage)
494 err = msg_loop_sendpage(c1, iov_buf, cnt, &s, opt);
495 else
496 err = msg_loop(c1, iov_count, iov_buf,
497 cnt, &s, true, opt);
498
499 if (err)
500 fprintf(stderr,
501 "msg_loop_tx: iov_count %i iov_buf %i cnt %i err %i\n",
502 iov_count, iov_buf, cnt, err);
503 shutdown(c1, SHUT_RDWR);
504 if (s.end.tv_sec - s.start.tv_sec) {
505 sent_Bps = sentBps(s);
506 recvd_Bps = recvdBps(s);
507 }
508 if (opt->verbose)
509 fprintf(stdout,
510 "tx_sendmsg: TX: %zuB %fB/s %f GB/s RX: %zuB %fB/s %fGB/s\n",
511 s.bytes_sent, sent_Bps, sent_Bps/giga,
512 s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
513 exit(err ? 1 : 0);
514 } else if (txpid == -1) {
515 perror("msg_loop_tx: ");
516 return errno;
517 }
518
519 assert(waitpid(rxpid, &rx_status, 0) == rxpid);
520 assert(waitpid(txpid, &tx_status, 0) == txpid);
521 if (WIFEXITED(rx_status)) {
522 err = WEXITSTATUS(rx_status);
523 if (err) {
524 fprintf(stderr, "rx thread exited with err %d. ", err);
525 goto out;
526 }
527 }
528 if (WIFEXITED(tx_status)) {
529 err = WEXITSTATUS(tx_status);
530 if (err)
531 fprintf(stderr, "tx thread exited with err %d. ", err);
532 }
533out:
534 return err;
535}
536
537static int forever_ping_pong(int rate, struct sockmap_options *opt)
538{
539 struct timeval timeout;
540 char buf[1024] = {0};
541 int sc;
542
543 timeout.tv_sec = 10;
544 timeout.tv_usec = 0;
545
546
547 sc = send(c1, buf, sizeof(buf), 0);
548 if (sc < 0) {
549 perror("send failed()\n");
550 return sc;
551 }
552
553 do {
554 int s, rc, i, max_fd = p2;
555 fd_set w;
556
557
558 FD_ZERO(&w);
559 FD_SET(c1, &w);
560 FD_SET(c2, &w);
561 FD_SET(p1, &w);
562 FD_SET(p2, &w);
563
564 s = select(max_fd + 1, &w, NULL, NULL, &timeout);
565 if (s == -1) {
566 perror("select()");
567 break;
568 } else if (!s) {
569 fprintf(stderr, "unexpected timeout\n");
570 break;
571 }
572
573 for (i = 0; i <= max_fd && s > 0; ++i) {
574 if (!FD_ISSET(i, &w))
575 continue;
576
577 s--;
578
579 rc = recv(i, buf, sizeof(buf), 0);
580 if (rc < 0) {
581 if (errno != EWOULDBLOCK) {
582 perror("recv failed()\n");
583 return rc;
584 }
585 }
586
587 if (rc == 0) {
588 close(i);
589 break;
590 }
591
592 sc = send(i, buf, rc, 0);
593 if (sc < 0) {
594 perror("send failed()\n");
595 return sc;
596 }
597 }
598
599 if (rate)
600 sleep(rate);
601
602 if (opt->verbose) {
603 printf(".");
604 fflush(stdout);
605
606 }
607 } while (running);
608
609 return 0;
610}
611
612enum {
613 PING_PONG,
614 SENDMSG,
615 BASE,
616 BASE_SENDPAGE,
617 SENDPAGE,
618};
619
620static int run_options(struct sockmap_options *options, int cg_fd, int test)
621{
622 int i, key, next_key, err, tx_prog_fd = -1, zero = 0;
623
624
625 if (test == BASE || test == BASE_SENDPAGE)
626 goto run;
627
628
629 err = bpf_prog_attach(prog_fd[0], map_fd[0],
630 BPF_SK_SKB_STREAM_PARSER, 0);
631 if (err) {
632 fprintf(stderr,
633 "ERROR: bpf_prog_attach (sockmap %i->%i): %d (%s)\n",
634 prog_fd[0], map_fd[0], err, strerror(errno));
635 return err;
636 }
637
638 err = bpf_prog_attach(prog_fd[1], map_fd[0],
639 BPF_SK_SKB_STREAM_VERDICT, 0);
640 if (err) {
641 fprintf(stderr, "ERROR: bpf_prog_attach (sockmap): %d (%s)\n",
642 err, strerror(errno));
643 return err;
644 }
645
646
647 err = bpf_prog_attach(prog_fd[2], cg_fd, BPF_CGROUP_SOCK_OPS, 0);
648 if (err) {
649 fprintf(stderr, "ERROR: bpf_prog_attach (groups): %d (%s)\n",
650 err, strerror(errno));
651 return err;
652 }
653
654run:
655 err = sockmap_init_sockets(options->verbose);
656 if (err) {
657 fprintf(stderr, "ERROR: test socket failed: %d\n", err);
658 goto out;
659 }
660
661
662 if (txmsg_pass)
663 tx_prog_fd = prog_fd[3];
664 else if (txmsg_noisy)
665 tx_prog_fd = prog_fd[4];
666 else if (txmsg_redir)
667 tx_prog_fd = prog_fd[5];
668 else if (txmsg_redir_noisy)
669 tx_prog_fd = prog_fd[6];
670 else if (txmsg_drop)
671 tx_prog_fd = prog_fd[9];
672
673 else if (txmsg_apply)
674 tx_prog_fd = prog_fd[7];
675 else if (txmsg_cork)
676 tx_prog_fd = prog_fd[8];
677 else
678 tx_prog_fd = 0;
679
680 if (tx_prog_fd) {
681 int redir_fd, i = 0;
682
683 err = bpf_prog_attach(tx_prog_fd,
684 map_fd[1], BPF_SK_MSG_VERDICT, 0);
685 if (err) {
686 fprintf(stderr,
687 "ERROR: bpf_prog_attach (txmsg): %d (%s)\n",
688 err, strerror(errno));
689 goto out;
690 }
691
692 err = bpf_map_update_elem(map_fd[1], &i, &c1, BPF_ANY);
693 if (err) {
694 fprintf(stderr,
695 "ERROR: bpf_map_update_elem (txmsg): %d (%s\n",
696 err, strerror(errno));
697 goto out;
698 }
699
700 if (txmsg_redir || txmsg_redir_noisy)
701 redir_fd = c2;
702 else
703 redir_fd = c1;
704
705 err = bpf_map_update_elem(map_fd[2], &i, &redir_fd, BPF_ANY);
706 if (err) {
707 fprintf(stderr,
708 "ERROR: bpf_map_update_elem (txmsg): %d (%s\n",
709 err, strerror(errno));
710 goto out;
711 }
712
713 if (txmsg_apply) {
714 err = bpf_map_update_elem(map_fd[3],
715 &i, &txmsg_apply, BPF_ANY);
716 if (err) {
717 fprintf(stderr,
718 "ERROR: bpf_map_update_elem (apply_bytes): %d (%s\n",
719 err, strerror(errno));
720 goto out;
721 }
722 }
723
724 if (txmsg_cork) {
725 err = bpf_map_update_elem(map_fd[4],
726 &i, &txmsg_cork, BPF_ANY);
727 if (err) {
728 fprintf(stderr,
729 "ERROR: bpf_map_update_elem (cork_bytes): %d (%s\n",
730 err, strerror(errno));
731 goto out;
732 }
733 }
734
735 if (txmsg_start) {
736 err = bpf_map_update_elem(map_fd[5],
737 &i, &txmsg_start, BPF_ANY);
738 if (err) {
739 fprintf(stderr,
740 "ERROR: bpf_map_update_elem (txmsg_start): %d (%s)\n",
741 err, strerror(errno));
742 goto out;
743 }
744 }
745
746 if (txmsg_end) {
747 i = 1;
748 err = bpf_map_update_elem(map_fd[5],
749 &i, &txmsg_end, BPF_ANY);
750 if (err) {
751 fprintf(stderr,
752 "ERROR: bpf_map_update_elem (txmsg_end): %d (%s)\n",
753 err, strerror(errno));
754 goto out;
755 }
756 }
757
758 if (txmsg_ingress) {
759 int in = BPF_F_INGRESS;
760
761 i = 0;
762 err = bpf_map_update_elem(map_fd[6], &i, &in, BPF_ANY);
763 if (err) {
764 fprintf(stderr,
765 "ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
766 err, strerror(errno));
767 }
768 i = 1;
769 err = bpf_map_update_elem(map_fd[1], &i, &p1, BPF_ANY);
770 if (err) {
771 fprintf(stderr,
772 "ERROR: bpf_map_update_elem (p1 txmsg): %d (%s)\n",
773 err, strerror(errno));
774 }
775 err = bpf_map_update_elem(map_fd[2], &i, &p1, BPF_ANY);
776 if (err) {
777 fprintf(stderr,
778 "ERROR: bpf_map_update_elem (p1 redir): %d (%s)\n",
779 err, strerror(errno));
780 }
781
782 i = 2;
783 err = bpf_map_update_elem(map_fd[2], &i, &p2, BPF_ANY);
784 if (err) {
785 fprintf(stderr,
786 "ERROR: bpf_map_update_elem (p2 txmsg): %d (%s)\n",
787 err, strerror(errno));
788 }
789 }
790
791 if (txmsg_skb) {
792 int skb_fd = (test == SENDMSG || test == SENDPAGE) ?
793 p2 : p1;
794 int ingress = BPF_F_INGRESS;
795
796 i = 0;
797 err = bpf_map_update_elem(map_fd[7],
798 &i, &ingress, BPF_ANY);
799 if (err) {
800 fprintf(stderr,
801 "ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
802 err, strerror(errno));
803 }
804
805 i = 3;
806 err = bpf_map_update_elem(map_fd[0],
807 &i, &skb_fd, BPF_ANY);
808 if (err) {
809 fprintf(stderr,
810 "ERROR: bpf_map_update_elem (c1 sockmap): %d (%s)\n",
811 err, strerror(errno));
812 }
813 }
814 }
815
816 if (txmsg_drop)
817 options->drop_expected = true;
818
819 if (test == PING_PONG)
820 err = forever_ping_pong(options->rate, options);
821 else if (test == SENDMSG) {
822 options->base = false;
823 options->sendpage = false;
824 err = sendmsg_test(options);
825 } else if (test == SENDPAGE) {
826 options->base = false;
827 options->sendpage = true;
828 err = sendmsg_test(options);
829 } else if (test == BASE) {
830 options->base = true;
831 options->sendpage = false;
832 err = sendmsg_test(options);
833 } else if (test == BASE_SENDPAGE) {
834 options->base = true;
835 options->sendpage = true;
836 err = sendmsg_test(options);
837 } else
838 fprintf(stderr, "unknown test\n");
839out:
840
841 bpf_prog_detach2(prog_fd[2], cg_fd, BPF_CGROUP_SOCK_OPS);
842 bpf_prog_detach2(prog_fd[0], map_fd[0], BPF_SK_SKB_STREAM_PARSER);
843 bpf_prog_detach2(prog_fd[1], map_fd[0], BPF_SK_SKB_STREAM_VERDICT);
844 if (tx_prog_fd >= 0)
845 bpf_prog_detach2(tx_prog_fd, map_fd[1], BPF_SK_MSG_VERDICT);
846
847 for (i = 0; i < 8; i++) {
848 key = next_key = 0;
849 bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
850 while (bpf_map_get_next_key(map_fd[i], &key, &next_key) == 0) {
851 bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
852 key = next_key;
853 }
854 }
855
856 close(s1);
857 close(s2);
858 close(p1);
859 close(p2);
860 close(c1);
861 close(c2);
862 return err;
863}
864
865static char *test_to_str(int test)
866{
867 switch (test) {
868 case SENDMSG:
869 return "sendmsg";
870 case SENDPAGE:
871 return "sendpage";
872 }
873 return "unknown";
874}
875
876#define OPTSTRING 60
877static void test_options(char *options)
878{
879 char tstr[OPTSTRING];
880
881 memset(options, 0, OPTSTRING);
882
883 if (txmsg_pass)
884 strncat(options, "pass,", OPTSTRING);
885 if (txmsg_noisy)
886 strncat(options, "pass_noisy,", OPTSTRING);
887 if (txmsg_redir)
888 strncat(options, "redir,", OPTSTRING);
889 if (txmsg_redir_noisy)
890 strncat(options, "redir_noisy,", OPTSTRING);
891 if (txmsg_drop)
892 strncat(options, "drop,", OPTSTRING);
893 if (txmsg_apply) {
894 snprintf(tstr, OPTSTRING, "apply %d,", txmsg_apply);
895 strncat(options, tstr, OPTSTRING);
896 }
897 if (txmsg_cork) {
898 snprintf(tstr, OPTSTRING, "cork %d,", txmsg_cork);
899 strncat(options, tstr, OPTSTRING);
900 }
901 if (txmsg_start) {
902 snprintf(tstr, OPTSTRING, "start %d,", txmsg_start);
903 strncat(options, tstr, OPTSTRING);
904 }
905 if (txmsg_end) {
906 snprintf(tstr, OPTSTRING, "end %d,", txmsg_end);
907 strncat(options, tstr, OPTSTRING);
908 }
909 if (txmsg_ingress)
910 strncat(options, "ingress,", OPTSTRING);
911 if (txmsg_skb)
912 strncat(options, "skb,", OPTSTRING);
913}
914
915static int __test_exec(int cgrp, int test, struct sockmap_options *opt)
916{
917 char *options = calloc(OPTSTRING, sizeof(char));
918 int err;
919
920 if (test == SENDPAGE)
921 opt->sendpage = true;
922 else
923 opt->sendpage = false;
924
925 if (txmsg_drop)
926 opt->drop_expected = true;
927 else
928 opt->drop_expected = false;
929
930 test_options(options);
931
932 fprintf(stdout,
933 "[TEST %i]: (%i, %i, %i, %s, %s): ",
934 test_cnt, opt->rate, opt->iov_count, opt->iov_length,
935 test_to_str(test), options);
936 fflush(stdout);
937 err = run_options(opt, cgrp, test);
938 fprintf(stdout, "%s\n", !err ? "PASS" : "FAILED");
939 test_cnt++;
940 !err ? passed++ : failed++;
941 free(options);
942 return err;
943}
944
945static int test_exec(int cgrp, struct sockmap_options *opt)
946{
947 int err = __test_exec(cgrp, SENDMSG, opt);
948
949 if (err)
950 goto out;
951
952 err = __test_exec(cgrp, SENDPAGE, opt);
953out:
954 return err;
955}
956
957static int test_loop(int cgrp)
958{
959 struct sockmap_options opt;
960
961 int err, i, l, r;
962
963 opt.verbose = 0;
964 opt.base = false;
965 opt.sendpage = false;
966 opt.data_test = false;
967 opt.drop_expected = false;
968 opt.iov_count = 0;
969 opt.iov_length = 0;
970 opt.rate = 0;
971
972 r = 1;
973 for (i = 1; i < 100; i += 33) {
974 for (l = 1; l < 100; l += 33) {
975 opt.rate = r;
976 opt.iov_count = i;
977 opt.iov_length = l;
978 err = test_exec(cgrp, &opt);
979 if (err)
980 goto out;
981 }
982 }
983 sched_yield();
984out:
985 return err;
986}
987
988static int test_txmsg(int cgrp)
989{
990 int err;
991
992 txmsg_pass = txmsg_noisy = txmsg_redir_noisy = txmsg_drop = 0;
993 txmsg_apply = txmsg_cork = 0;
994 txmsg_ingress = txmsg_skb = 0;
995
996 txmsg_pass = 1;
997 err = test_loop(cgrp);
998 txmsg_pass = 0;
999 if (err)
1000 goto out;
1001
1002 txmsg_redir = 1;
1003 err = test_loop(cgrp);
1004 txmsg_redir = 0;
1005 if (err)
1006 goto out;
1007
1008 txmsg_drop = 1;
1009 err = test_loop(cgrp);
1010 txmsg_drop = 0;
1011 if (err)
1012 goto out;
1013
1014 txmsg_redir = 1;
1015 txmsg_ingress = 1;
1016 err = test_loop(cgrp);
1017 txmsg_redir = 0;
1018 txmsg_ingress = 0;
1019 if (err)
1020 goto out;
1021out:
1022 txmsg_pass = 0;
1023 txmsg_redir = 0;
1024 txmsg_drop = 0;
1025 return err;
1026}
1027
1028static int test_send(struct sockmap_options *opt, int cgrp)
1029{
1030 int err;
1031
1032 opt->iov_length = 1;
1033 opt->iov_count = 1;
1034 opt->rate = 1;
1035 err = test_exec(cgrp, opt);
1036 if (err)
1037 goto out;
1038
1039 opt->iov_length = 1;
1040 opt->iov_count = 1024;
1041 opt->rate = 1;
1042 err = test_exec(cgrp, opt);
1043 if (err)
1044 goto out;
1045
1046 opt->iov_length = 1024;
1047 opt->iov_count = 1;
1048 opt->rate = 1;
1049 err = test_exec(cgrp, opt);
1050 if (err)
1051 goto out;
1052
1053 opt->iov_length = 1;
1054 opt->iov_count = 1;
1055 opt->rate = 512;
1056 err = test_exec(cgrp, opt);
1057 if (err)
1058 goto out;
1059
1060 opt->iov_length = 256;
1061 opt->iov_count = 1024;
1062 opt->rate = 2;
1063 err = test_exec(cgrp, opt);
1064 if (err)
1065 goto out;
1066
1067 opt->rate = 100;
1068 opt->iov_count = 1;
1069 opt->iov_length = 5;
1070 err = test_exec(cgrp, opt);
1071 if (err)
1072 goto out;
1073out:
1074 sched_yield();
1075 return err;
1076}
1077
1078static int test_mixed(int cgrp)
1079{
1080 struct sockmap_options opt = {0};
1081 int err;
1082
1083 txmsg_pass = txmsg_noisy = txmsg_redir_noisy = txmsg_drop = 0;
1084 txmsg_apply = txmsg_cork = 0;
1085 txmsg_start = txmsg_end = 0;
1086
1087 txmsg_pass = 1;
1088 txmsg_redir = 0;
1089 txmsg_apply = 1;
1090 txmsg_cork = 0;
1091 err = test_send(&opt, cgrp);
1092 if (err)
1093 goto out;
1094
1095 txmsg_pass = 1;
1096 txmsg_redir = 0;
1097 txmsg_apply = 0;
1098 txmsg_cork = 1;
1099 err = test_send(&opt, cgrp);
1100 if (err)
1101 goto out;
1102
1103 txmsg_pass = 1;
1104 txmsg_redir = 0;
1105 txmsg_apply = 1;
1106 txmsg_cork = 1;
1107 err = test_send(&opt, cgrp);
1108 if (err)
1109 goto out;
1110
1111 txmsg_pass = 1;
1112 txmsg_redir = 0;
1113 txmsg_apply = 1024;
1114 txmsg_cork = 0;
1115 err = test_send(&opt, cgrp);
1116 if (err)
1117 goto out;
1118
1119 txmsg_pass = 1;
1120 txmsg_redir = 0;
1121 txmsg_apply = 0;
1122 txmsg_cork = 1024;
1123 err = test_send(&opt, cgrp);
1124 if (err)
1125 goto out;
1126
1127 txmsg_pass = 1;
1128 txmsg_redir = 0;
1129 txmsg_apply = 1024;
1130 txmsg_cork = 1024;
1131 err = test_send(&opt, cgrp);
1132 if (err)
1133 goto out;
1134
1135 txmsg_pass = 1;
1136 txmsg_redir = 0;
1137 txmsg_cork = 4096;
1138 txmsg_apply = 4096;
1139 err = test_send(&opt, cgrp);
1140 if (err)
1141 goto out;
1142
1143 txmsg_pass = 0;
1144 txmsg_redir = 1;
1145 txmsg_apply = 1;
1146 txmsg_cork = 0;
1147 err = test_send(&opt, cgrp);
1148 if (err)
1149 goto out;
1150
1151 txmsg_pass = 0;
1152 txmsg_redir = 1;
1153 txmsg_apply = 0;
1154 txmsg_cork = 1;
1155 err = test_send(&opt, cgrp);
1156 if (err)
1157 goto out;
1158
1159 txmsg_pass = 0;
1160 txmsg_redir = 1;
1161 txmsg_apply = 1024;
1162 txmsg_cork = 0;
1163 err = test_send(&opt, cgrp);
1164 if (err)
1165 goto out;
1166
1167 txmsg_pass = 0;
1168 txmsg_redir = 1;
1169 txmsg_apply = 0;
1170 txmsg_cork = 1024;
1171 err = test_send(&opt, cgrp);
1172 if (err)
1173 goto out;
1174
1175 txmsg_pass = 0;
1176 txmsg_redir = 1;
1177 txmsg_apply = 1024;
1178 txmsg_cork = 1024;
1179 err = test_send(&opt, cgrp);
1180 if (err)
1181 goto out;
1182
1183 txmsg_pass = 0;
1184 txmsg_redir = 1;
1185 txmsg_cork = 4096;
1186 txmsg_apply = 4096;
1187 err = test_send(&opt, cgrp);
1188 if (err)
1189 goto out;
1190out:
1191 return err;
1192}
1193
1194static int test_start_end(int cgrp)
1195{
1196 struct sockmap_options opt = {0};
1197 int err, i;
1198
1199
1200 txmsg_start = 1;
1201 txmsg_end = 2;
1202 err = test_txmsg(cgrp);
1203 if (err)
1204 goto out;
1205
1206
1207 opt.rate = 16;
1208 opt.iov_count = 1;
1209 opt.iov_length = 100;
1210 txmsg_cork = 1600;
1211
1212 for (i = 99; i <= 1600; i += 500) {
1213 txmsg_start = 0;
1214 txmsg_end = i;
1215 err = test_exec(cgrp, &opt);
1216 if (err)
1217 goto out;
1218 }
1219
1220
1221 for (i = 199; i <= 1600; i += 500) {
1222 txmsg_start = 100;
1223 txmsg_end = i;
1224 err = test_exec(cgrp, &opt);
1225 if (err)
1226 goto out;
1227 }
1228
1229
1230 txmsg_start = 1500;
1231 txmsg_end = 1600;
1232 err = test_exec(cgrp, &opt);
1233 if (err)
1234 goto out;
1235
1236
1237 txmsg_start = 1111;
1238 txmsg_end = 1112;
1239 err = test_exec(cgrp, &opt);
1240 if (err)
1241 goto out;
1242
1243
1244 txmsg_start = 1111;
1245 txmsg_end = 0;
1246 err = test_exec(cgrp, &opt);
1247 if (err)
1248 goto out;
1249
1250
1251 txmsg_start = 0;
1252 txmsg_end = 1601;
1253 err = test_exec(cgrp, &opt);
1254 if (err)
1255 goto out;
1256
1257
1258 txmsg_start = 1601;
1259 txmsg_end = 1600;
1260 err = test_exec(cgrp, &opt);
1261
1262out:
1263 txmsg_start = 0;
1264 txmsg_end = 0;
1265 sched_yield();
1266 return err;
1267}
1268
1269char *map_names[] = {
1270 "sock_map",
1271 "sock_map_txmsg",
1272 "sock_map_redir",
1273 "sock_apply_bytes",
1274 "sock_cork_bytes",
1275 "sock_pull_bytes",
1276 "sock_redir_flags",
1277 "sock_skb_opts",
1278};
1279
1280int prog_attach_type[] = {
1281 BPF_SK_SKB_STREAM_PARSER,
1282 BPF_SK_SKB_STREAM_VERDICT,
1283 BPF_CGROUP_SOCK_OPS,
1284 BPF_SK_MSG_VERDICT,
1285 BPF_SK_MSG_VERDICT,
1286 BPF_SK_MSG_VERDICT,
1287 BPF_SK_MSG_VERDICT,
1288 BPF_SK_MSG_VERDICT,
1289 BPF_SK_MSG_VERDICT,
1290 BPF_SK_MSG_VERDICT,
1291};
1292
1293int prog_type[] = {
1294 BPF_PROG_TYPE_SK_SKB,
1295 BPF_PROG_TYPE_SK_SKB,
1296 BPF_PROG_TYPE_SOCK_OPS,
1297 BPF_PROG_TYPE_SK_MSG,
1298 BPF_PROG_TYPE_SK_MSG,
1299 BPF_PROG_TYPE_SK_MSG,
1300 BPF_PROG_TYPE_SK_MSG,
1301 BPF_PROG_TYPE_SK_MSG,
1302 BPF_PROG_TYPE_SK_MSG,
1303 BPF_PROG_TYPE_SK_MSG,
1304};
1305
1306static int populate_progs(char *bpf_file)
1307{
1308 struct bpf_program *prog;
1309 struct bpf_object *obj;
1310 int i = 0;
1311 long err;
1312
1313 obj = bpf_object__open(bpf_file);
1314 err = libbpf_get_error(obj);
1315 if (err) {
1316 char err_buf[256];
1317
1318 libbpf_strerror(err, err_buf, sizeof(err_buf));
1319 printf("Unable to load eBPF objects in file '%s' : %s\n",
1320 bpf_file, err_buf);
1321 return -1;
1322 }
1323
1324 bpf_object__for_each_program(prog, obj) {
1325 bpf_program__set_type(prog, prog_type[i]);
1326 bpf_program__set_expected_attach_type(prog,
1327 prog_attach_type[i]);
1328 i++;
1329 }
1330
1331 i = bpf_object__load(obj);
1332 i = 0;
1333 bpf_object__for_each_program(prog, obj) {
1334 prog_fd[i] = bpf_program__fd(prog);
1335 i++;
1336 }
1337
1338 for (i = 0; i < sizeof(map_fd)/sizeof(int); i++) {
1339 maps[i] = bpf_object__find_map_by_name(obj, map_names[i]);
1340 map_fd[i] = bpf_map__fd(maps[i]);
1341 if (map_fd[i] < 0) {
1342 fprintf(stderr, "load_bpf_file: (%i) %s\n",
1343 map_fd[i], strerror(errno));
1344 return -1;
1345 }
1346 }
1347
1348 return 0;
1349}
1350
1351static int __test_suite(char *bpf_file)
1352{
1353 int cg_fd, err;
1354
1355 err = populate_progs(bpf_file);
1356 if (err < 0) {
1357 fprintf(stderr, "ERROR: (%i) load bpf failed\n", err);
1358 return err;
1359 }
1360
1361 if (setup_cgroup_environment()) {
1362 fprintf(stderr, "ERROR: cgroup env failed\n");
1363 return -EINVAL;
1364 }
1365
1366 cg_fd = create_and_get_cgroup(CG_PATH);
1367 if (cg_fd < 0) {
1368 fprintf(stderr,
1369 "ERROR: (%i) open cg path failed: %s\n",
1370 cg_fd, optarg);
1371 return cg_fd;
1372 }
1373
1374 if (join_cgroup(CG_PATH)) {
1375 fprintf(stderr, "ERROR: failed to join cgroup\n");
1376 return -EINVAL;
1377 }
1378
1379
1380 txmsg_start = txmsg_end = 0;
1381 err = test_txmsg(cg_fd);
1382 if (err)
1383 goto out;
1384
1385
1386 err = test_mixed(cg_fd);
1387 if (err)
1388 goto out;
1389
1390
1391 err = test_start_end(cg_fd);
1392 if (err)
1393 goto out;
1394
1395out:
1396 printf("Summary: %i PASSED %i FAILED\n", passed, failed);
1397 cleanup_cgroup_environment();
1398 close(cg_fd);
1399 return err;
1400}
1401
1402static int test_suite(void)
1403{
1404 int err;
1405
1406 err = __test_suite(BPF_SOCKMAP_FILENAME);
1407 if (err)
1408 goto out;
1409 err = __test_suite(BPF_SOCKHASH_FILENAME);
1410out:
1411 return err;
1412}
1413
1414int main(int argc, char **argv)
1415{
1416 int iov_count = 1, length = 1024, rate = 1;
1417 struct sockmap_options options = {0};
1418 int opt, longindex, err, cg_fd = 0;
1419 char *bpf_file = BPF_SOCKMAP_FILENAME;
1420 int test = PING_PONG;
1421
1422 if (argc < 2)
1423 return test_suite();
1424
1425 while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:",
1426 long_options, &longindex)) != -1) {
1427 switch (opt) {
1428 case 's':
1429 txmsg_start = atoi(optarg);
1430 break;
1431 case 'e':
1432 txmsg_end = atoi(optarg);
1433 break;
1434 case 'a':
1435 txmsg_apply = atoi(optarg);
1436 break;
1437 case 'k':
1438 txmsg_cork = atoi(optarg);
1439 break;
1440 case 'c':
1441 cg_fd = open(optarg, O_DIRECTORY, O_RDONLY);
1442 if (cg_fd < 0) {
1443 fprintf(stderr,
1444 "ERROR: (%i) open cg path failed: %s\n",
1445 cg_fd, optarg);
1446 return cg_fd;
1447 }
1448 break;
1449 case 'r':
1450 rate = atoi(optarg);
1451 break;
1452 case 'v':
1453 options.verbose = 1;
1454 break;
1455 case 'i':
1456 iov_count = atoi(optarg);
1457 break;
1458 case 'l':
1459 length = atoi(optarg);
1460 break;
1461 case 'd':
1462 options.data_test = true;
1463 break;
1464 case 't':
1465 if (strcmp(optarg, "ping") == 0) {
1466 test = PING_PONG;
1467 } else if (strcmp(optarg, "sendmsg") == 0) {
1468 test = SENDMSG;
1469 } else if (strcmp(optarg, "base") == 0) {
1470 test = BASE;
1471 } else if (strcmp(optarg, "base_sendpage") == 0) {
1472 test = BASE_SENDPAGE;
1473 } else if (strcmp(optarg, "sendpage") == 0) {
1474 test = SENDPAGE;
1475 } else {
1476 usage(argv);
1477 return -1;
1478 }
1479 break;
1480 case 0:
1481 break;
1482 case 'h':
1483 default:
1484 usage(argv);
1485 return -1;
1486 }
1487 }
1488
1489 if (!cg_fd) {
1490 fprintf(stderr, "%s requires cgroup option: --cgroup <path>\n",
1491 argv[0]);
1492 return -1;
1493 }
1494
1495 err = populate_progs(bpf_file);
1496 if (err) {
1497 fprintf(stderr, "populate program: (%s) %s\n",
1498 bpf_file, strerror(errno));
1499 return 1;
1500 }
1501 running = 1;
1502
1503
1504 signal(SIGINT, running_handler);
1505
1506 options.iov_count = iov_count;
1507 options.iov_length = length;
1508 options.rate = rate;
1509
1510 err = run_options(&options, cg_fd, test);
1511 close(cg_fd);
1512 return err;
1513}
1514
1515void running_handler(int a)
1516{
1517 running = 0;
1518}
1519
