2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #include <vnet/tcp/tcp.h>
17 #define TCP_TEST_I(_cond, _comment, _args...) \
19 int _evald = (_cond); \
21 fformat(stderr, "FAIL:%d: " _comment "\n", \
24 fformat(stderr, "PASS:%d: " _comment "\n", \
30 #define TCP_TEST(_cond, _comment, _args...) \
32 if (!TCP_TEST_I(_cond, _comment, ##_args)) { \
38 tcp_test_sack_rx (vlib_main_t * vm, unformat_input_t * input)
40 tcp_connection_t _tc, *tc = &_tc;
41 sack_scoreboard_t *sb = &tc->sack_sb;
42 sack_block_t *sacks = 0, block;
43 sack_scoreboard_hole_t *hole;
46 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
48 if (unformat (input, "verbose"))
52 memset (tc, 0, sizeof (*tc));
55 tc->snd_una_max = 1000;
57 tc->opt.flags |= TCP_OPTS_FLAG_SACK;
58 scoreboard_init (&tc->sack_sb);
60 for (i = 0; i < 1000 / 100; i++)
62 block.start = i * 100;
63 block.end = (i + 1) * 100;
64 vec_add1 (sacks, block);
71 for (i = 0; i < 1000 / 200; i++)
73 vec_add1 (tc->opt.sacks, sacks[i * 2]);
75 tc->opt.n_sack_blocks = vec_len (tc->opt.sacks);
76 tcp_rcv_sacks (tc, 0);
79 vlib_cli_output (vm, "sb after even blocks:\n%U", format_tcp_scoreboard,
82 TCP_TEST ((pool_elts (sb->holes) == 5),
83 "scoreboard has %d elements", pool_elts (sb->holes));
85 /* First SACK block should be rejected */
86 hole = scoreboard_first_hole (sb);
87 TCP_TEST ((hole->start == 0 && hole->end == 200),
88 "first hole start %u end %u", hole->start, hole->end);
89 hole = scoreboard_last_hole (sb);
90 TCP_TEST ((hole->start == 900 && hole->end == 1000),
91 "last hole start %u end %u", hole->start, hole->end);
92 TCP_TEST ((sb->sacked_bytes == 400), "sacked bytes %d", sb->sacked_bytes);
93 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
94 TCP_TEST ((sb->last_sacked_bytes == 400),
95 "last sacked bytes %d", sb->last_sacked_bytes);
96 TCP_TEST ((sb->max_byte_sacked == 900),
97 "max byte sacked %u", sb->max_byte_sacked);
102 vec_reset_length (tc->opt.sacks);
103 for (i = 0; i < 1000 / 200; i++)
105 vec_add1 (tc->opt.sacks, sacks[i * 2 + 1]);
107 tc->opt.n_sack_blocks = vec_len (tc->opt.sacks);
108 tcp_rcv_sacks (tc, 0);
111 vlib_cli_output (vm, "sb after odd blocks:\n%U", format_tcp_scoreboard,
114 hole = scoreboard_first_hole (sb);
115 TCP_TEST ((pool_elts (sb->holes) == 1),
116 "scoreboard has %d holes", pool_elts (sb->holes));
117 TCP_TEST ((hole->start == 0 && hole->end == 100),
118 "first hole start %u end %u", hole->start, hole->end);
119 TCP_TEST ((sb->sacked_bytes == 900), "sacked bytes %d", sb->sacked_bytes);
120 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
121 TCP_TEST ((sb->max_byte_sacked == 1000),
122 "max sacked byte %u", sb->max_byte_sacked);
123 TCP_TEST ((sb->last_sacked_bytes == 500),
124 "last sacked bytes %d", sb->last_sacked_bytes);
127 * Ack until byte 100, all bytes are now acked + sacked
129 tcp_rcv_sacks (tc, 100);
131 vlib_cli_output (vm, "ack until byte 100:\n%U", format_tcp_scoreboard,
134 TCP_TEST ((pool_elts (sb->holes) == 0),
135 "scoreboard has %d elements", pool_elts (sb->holes));
136 TCP_TEST ((sb->snd_una_adv == 900),
137 "snd_una_adv after ack %u", sb->snd_una_adv);
138 TCP_TEST ((sb->max_byte_sacked == 1000),
139 "max sacked byte %u", sb->max_byte_sacked);
140 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
141 TCP_TEST ((sb->last_sacked_bytes == 0),
142 "last sacked bytes %d", sb->last_sacked_bytes);
148 vec_reset_length (tc->opt.sacks);
152 vec_add1 (tc->opt.sacks, block);
155 vlib_cli_output (vm, "add [1200, 1300]:\n%U", format_tcp_scoreboard, sb);
156 tc->snd_una_max = 1500;
159 tcp_rcv_sacks (tc, 1000);
162 vlib_cli_output (vm, "sb snd_una_max 1500, snd_una 1000:\n%U",
163 format_tcp_scoreboard, sb);
165 TCP_TEST ((sb->snd_una_adv == 0),
166 "snd_una_adv after ack %u", sb->snd_una_adv);
167 TCP_TEST ((pool_elts (sb->holes) == 2),
168 "scoreboard has %d holes", pool_elts (sb->holes));
169 hole = scoreboard_first_hole (sb);
170 TCP_TEST ((hole->start == 1000 && hole->end == 1200),
171 "first hole start %u end %u", hole->start, hole->end);
172 TCP_TEST ((sb->snd_una_adv == 0),
173 "snd_una_adv after ack %u", sb->snd_una_adv);
174 TCP_TEST ((sb->max_byte_sacked == 1300),
175 "max sacked byte %u", sb->max_byte_sacked);
176 hole = scoreboard_last_hole (sb);
177 TCP_TEST ((hole->start == 1300 && hole->end == 1500),
178 "last hole start %u end %u", hole->start, hole->end);
179 TCP_TEST ((sb->sacked_bytes == 100), "sacked bytes %d", sb->sacked_bytes);
185 vec_reset_length (tc->opt.sacks);
186 tcp_rcv_sacks (tc, 1200);
189 vlib_cli_output (vm, "sb ack up to byte 1200:\n%U", format_tcp_scoreboard,
192 TCP_TEST ((sb->snd_una_adv == 100),
193 "snd_una_adv after ack %u", sb->snd_una_adv);
194 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
195 TCP_TEST ((pool_elts (sb->holes) == 1),
196 "scoreboard has %d elements", pool_elts (sb->holes));
202 scoreboard_clear (sb);
204 vlib_cli_output (vm, "sb cleared all:\n%U", format_tcp_scoreboard, sb);
206 TCP_TEST ((pool_elts (sb->holes) == 0),
207 "number of holes %d", pool_elts (sb->holes));
209 * Re-inject odd blocks and ack them all
213 tc->snd_una_max = 1000;
215 for (i = 0; i < 5; i++)
217 vec_add1 (tc->opt.sacks, sacks[i * 2 + 1]);
219 tc->opt.n_sack_blocks = vec_len (tc->opt.sacks);
220 tcp_rcv_sacks (tc, 0);
222 vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U",
223 format_tcp_scoreboard, sb);
225 tcp_rcv_sacks (tc, 950);
228 vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U",
229 format_tcp_scoreboard, sb);
231 TCP_TEST ((pool_elts (sb->holes) == 0),
232 "scoreboard has %d elements", pool_elts (sb->holes));
233 TCP_TEST ((sb->snd_una_adv == 50), "snd_una_adv %u", sb->snd_una_adv);
234 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
235 TCP_TEST ((sb->last_sacked_bytes == 0),
236 "last sacked bytes %d", sb->last_sacked_bytes);
242 tcp_test_sack_tx (vlib_main_t * vm, unformat_input_t * input)
244 tcp_connection_t _tc, *tc = &_tc;
248 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
250 if (unformat (input, "verbose"))
254 vlib_cli_output (vm, "parse error: '%U'", format_unformat_error,
260 memset (tc, 0, sizeof (*tc));
263 * Add odd sack block pairs
265 for (i = 1; i < 10; i += 2)
267 tcp_update_sack_list (tc, i * 100, (i + 1) * 100);
270 TCP_TEST ((vec_len (tc->snd_sacks) == 5), "sack blocks %d expected %d",
271 vec_len (tc->snd_sacks), 5);
272 TCP_TEST ((tc->snd_sacks[0].start = 900),
273 "first sack block start %u expected %u", tc->snd_sacks[0].start,
277 * Try to add one extra
279 sacks = vec_dup (tc->snd_sacks);
281 tcp_update_sack_list (tc, 1100, 1200);
282 TCP_TEST ((vec_len (tc->snd_sacks) == 5), "sack blocks %d expected %d",
283 vec_len (tc->snd_sacks), 5);
284 TCP_TEST ((tc->snd_sacks[0].start == 1100),
285 "first sack block start %u expected %u", tc->snd_sacks[0].start,
289 vec_free (tc->snd_sacks);
290 tc->snd_sacks = sacks;
293 * Overlap first 2 segment
296 tcp_update_sack_list (tc, 300, 300);
298 vlib_cli_output (vm, "overlap first 2 segments:\n%U",
299 format_tcp_sacks, tc);
300 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
301 vec_len (tc->snd_sacks), 3);
302 TCP_TEST ((tc->snd_sacks[0].start == 900),
303 "first sack block start %u expected %u", tc->snd_sacks[0].start,
309 tcp_update_sack_list (tc, 1100, 1200);
311 vlib_cli_output (vm, "add new segment [1100, 1200]\n%U",
312 format_tcp_sacks, tc);
313 TCP_TEST ((vec_len (tc->snd_sacks) == 4), "sack blocks %d expected %d",
314 vec_len (tc->snd_sacks), 4);
315 TCP_TEST ((tc->snd_sacks[0].start == 1100),
316 "first sack block start %u expected %u", tc->snd_sacks[0].start,
320 * Join middle segments
322 tcp_update_sack_list (tc, 800, 900);
324 vlib_cli_output (vm, "join middle segments [800, 900]\n%U",
325 format_tcp_sacks, tc);
327 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
328 vec_len (tc->snd_sacks), 3);
329 TCP_TEST ((tc->snd_sacks[0].start == 700),
330 "first sack block start %u expected %u", tc->snd_sacks[0].start,
334 * Advance rcv_nxt to overlap all
337 tcp_update_sack_list (tc, 1200, 1200);
339 vlib_cli_output (vm, "advance rcv_nxt to 1200\n%U", format_tcp_sacks, tc);
340 TCP_TEST ((vec_len (tc->snd_sacks) == 0), "sack blocks %d expected %d",
341 vec_len (tc->snd_sacks), 0);
346 tcp_test_sack (vlib_main_t * vm, unformat_input_t * input)
351 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
353 if (tcp_test_sack_tx (vm, input))
358 if (tcp_test_sack_rx (vm, input))
365 if (unformat (input, "tx"))
367 res = tcp_test_sack_tx (vm, input);
369 else if (unformat (input, "rx"))
371 res = tcp_test_sack_rx (vm, input);
386 test_pattern_t test_pattern[] = {
387 {380, 8}, {768, 8}, {1156, 8}, {1544, 8}, {1932, 8}, {2320, 8}, {2708, 8},
388 {2992, 8}, {372, 8}, {760, 8}, {1148, 8}, {1536, 8}, {1924, 8}, {2312, 8},
389 {2700, 8}, {2984, 8}, {364, 8}, {752, 8}, {1140, 8}, {1528, 8}, {1916, 8},
390 {2304, 8}, {2692, 8}, {2976, 8}, {356, 8}, {744, 8}, {1132, 8}, {1520, 8},
391 {1908, 8}, {2296, 8}, {2684, 8}, {2968, 8}, {348, 8}, {736, 8}, {1124, 8},
392 {1512, 8}, {1900, 8}, {2288, 8}, {2676, 8}, {2960, 8}, {340, 8}, {728, 8},
393 {1116, 8}, {1504, 8}, {1892, 8}, {2280, 8}, {2668, 8}, {2952, 8}, {332, 8},
394 {720, 8}, {1108, 8}, {1496, 8}, {1884, 8}, {2272, 8}, {2660, 8}, {2944, 8},
395 {324, 8}, {712, 8}, {1100, 8}, {1488, 8}, {1876, 8}, {2264, 8}, {2652, 8},
396 {2936, 8}, {316, 8}, {704, 8}, {1092, 8}, {1480, 8}, {1868, 8}, {2256, 8},
397 {2644, 8}, {2928, 8}, {308, 8}, {696, 8}, {1084, 8}, {1472, 8}, {1860, 8},
398 {2248, 8}, {2636, 8}, {2920, 8}, {300, 8}, {688, 8}, {1076, 8}, {1464, 8},
399 {1852, 8}, {2240, 8}, {2628, 8}, {2912, 8}, {292, 8}, {680, 8}, {1068, 8},
400 {1456, 8}, {1844, 8}, {2232, 8}, {2620, 8}, {2904, 8}, {284, 8}, {672, 8},
401 {1060, 8}, {1448, 8}, {1836, 8}, {2224, 8}, {2612, 8}, {2896, 8}, {276, 8},
402 {664, 8}, {1052, 8}, {1440, 8}, {1828, 8}, {2216, 8}, {2604, 8}, {2888, 8},
403 {268, 8}, {656, 8}, {1044, 8}, {1432, 8}, {1820, 8}, {2208, 8}, {2596, 8},
404 {2880, 8}, {260, 8}, {648, 8}, {1036, 8}, {1424, 8}, {1812, 8}, {2200, 8},
405 {2588, 8}, {2872, 8}, {252, 8}, {640, 8}, {1028, 8}, {1416, 8}, {1804, 8},
406 {2192, 8}, {2580, 8}, {2864, 8}, {244, 8}, {632, 8}, {1020, 8}, {1408, 8},
407 {1796, 8}, {2184, 8}, {2572, 8}, {2856, 8}, {236, 8}, {624, 8}, {1012, 8},
408 {1400, 8}, {1788, 8}, {2176, 8}, {2564, 8}, {2848, 8}, {228, 8}, {616, 8},
409 {1004, 8}, {1392, 8}, {1780, 8}, {2168, 8}, {2556, 8}, {2840, 8}, {220, 8},
410 {608, 8}, {996, 8}, {1384, 8}, {1772, 8}, {2160, 8}, {2548, 8}, {2832, 8},
411 {212, 8}, {600, 8}, {988, 8}, {1376, 8}, {1764, 8}, {2152, 8}, {2540, 8},
412 {2824, 8}, {204, 8}, {592, 8}, {980, 8}, {1368, 8}, {1756, 8}, {2144, 8},
413 {2532, 8}, {2816, 8}, {196, 8}, {584, 8}, {972, 8}, {1360, 8}, {1748, 8},
414 {2136, 8}, {2524, 8}, {2808, 8}, {188, 8}, {576, 8}, {964, 8}, {1352, 8},
415 {1740, 8}, {2128, 8}, {2516, 8}, {2800, 8}, {180, 8}, {568, 8}, {956, 8},
416 {1344, 8}, {1732, 8}, {2120, 8}, {2508, 8}, {2792, 8}, {172, 8}, {560, 8},
417 {948, 8}, {1336, 8}, {1724, 8}, {2112, 8}, {2500, 8}, {2784, 8}, {164, 8},
418 {552, 8}, {940, 8}, {1328, 8}, {1716, 8}, {2104, 8}, {2492, 8}, {2776, 8},
419 {156, 8}, {544, 8}, {932, 8}, {1320, 8}, {1708, 8}, {2096, 8}, {2484, 8},
420 {2768, 8}, {148, 8}, {536, 8}, {924, 8}, {1312, 8}, {1700, 8}, {2088, 8},
421 {2476, 8}, {2760, 8}, {140, 8}, {528, 8}, {916, 8}, {1304, 8}, {1692, 8},
422 {2080, 8}, {2468, 8}, {2752, 8}, {132, 8}, {520, 8}, {908, 8}, {1296, 8},
423 {1684, 8}, {2072, 8}, {2460, 8}, {2744, 8}, {124, 8}, {512, 8}, {900, 8},
424 {1288, 8}, {1676, 8}, {2064, 8}, {2452, 8}, {2736, 8}, {116, 8}, {504, 8},
425 {892, 8}, {1280, 8}, {1668, 8}, {2056, 8}, {2444, 8}, {2728, 8}, {108, 8},
426 {496, 8}, {884, 8}, {1272, 8}, {1660, 8}, {2048, 8}, {2436, 8}, {2720, 8},
427 {100, 8}, {488, 8}, {876, 8}, {1264, 8}, {1652, 8}, {2040, 8}, {2428, 8},
428 {2716, 4}, {92, 8}, {480, 8}, {868, 8}, {1256, 8}, {1644, 8}, {2032, 8},
429 {2420, 8}, {84, 8}, {472, 8}, {860, 8}, {1248, 8}, {1636, 8}, {2024, 8},
430 {2412, 8}, {76, 8}, {464, 8}, {852, 8}, {1240, 8}, {1628, 8}, {2016, 8},
431 {2404, 8}, {68, 8}, {456, 8}, {844, 8}, {1232, 8}, {1620, 8}, {2008, 8},
432 {2396, 8}, {60, 8}, {448, 8}, {836, 8}, {1224, 8}, {1612, 8}, {2000, 8},
433 {2388, 8}, {52, 8}, {440, 8}, {828, 8}, {1216, 8}, {1604, 8}, {1992, 8},
434 {2380, 8}, {44, 8}, {432, 8}, {820, 8}, {1208, 8}, {1596, 8}, {1984, 8},
435 {2372, 8}, {36, 8}, {424, 8}, {812, 8}, {1200, 8}, {1588, 8}, {1976, 8},
436 {2364, 8}, {28, 8}, {416, 8}, {804, 8}, {1192, 8}, {1580, 8}, {1968, 8},
437 {2356, 8}, {20, 8}, {408, 8}, {796, 8}, {1184, 8}, {1572, 8}, {1960, 8},
438 {2348, 8}, {12, 8}, {400, 8}, {788, 8}, {1176, 8}, {1564, 8}, {1952, 8},
439 {2340, 8}, {4, 8}, {392, 8}, {780, 8}, {1168, 8}, {1556, 8}, {1944, 8},
441 /* missing from original data set */
442 {388, 4}, {776, 4}, {1164, 4}, {1552, 4}, {1940, 4}, {2328, 4},
447 pattern_cmp (const void *arg1, const void *arg2)
449 test_pattern_t *a1 = (test_pattern_t *) arg1;
450 test_pattern_t *a2 = (test_pattern_t *) arg2;
452 if (a1->offset < a2->offset)
454 else if (a1->offset > a2->offset)
460 fifo_validate_pattern (vlib_main_t * vm, test_pattern_t * pattern,
463 test_pattern_t *tp = pattern;
466 /* Go through the pattern and make 100% sure it's sane */
467 for (i = 0; i < pattern_length - 1; i++)
469 if (tp->offset + tp->len != (tp + 1)->offset)
471 vlib_cli_output (vm, "[%d] missing {%d, %d}", i,
472 (tp->offset + tp->len),
473 (tp + 1)->offset - (tp->offset + tp->len));
481 static test_pattern_t *
482 fifo_get_validate_pattern (vlib_main_t * vm, test_pattern_t * test_data,
485 test_pattern_t *validate_pattern = 0;
487 /* Validate, and try segments in order... */
488 vec_validate (validate_pattern, test_data_len - 1);
489 memcpy (validate_pattern, test_data,
490 test_data_len * sizeof (test_pattern_t));
491 qsort ((u8 *) validate_pattern, test_data_len, sizeof (test_pattern_t),
494 if (fifo_validate_pattern (vm, validate_pattern, test_data_len) == 0)
497 return validate_pattern;
501 fifo_prepare (u32 fifo_size)
504 f = svm_fifo_create (fifo_size);
506 /* Paint fifo data vector with -1's */
507 memset (f->data, 0xFF, fifo_size);
513 compare_data (u8 * data1, u8 * data2, u32 start, u32 len, u32 * index)
517 for (i = start; i < len; i++)
519 if (data1[i] != data2[i])
529 tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input)
532 u32 fifo_size = 1 << 20;
535 int i, rv, verbose = 0;
536 u32 data_word, test_data_len, j;
537 ooo_segment_t *ooo_seg;
538 u8 *data, *s, *data_buf = 0;
540 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
542 if (unformat (input, "verbose"))
546 test_data_len = fifo_size / sizeof (u32);
547 vec_validate (test_data, test_data_len - 1);
549 for (i = 0; i < vec_len (test_data); i++)
552 f = fifo_prepare (fifo_size);
555 * Enqueue an initial (un-dequeued) chunk
557 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) test_data);
558 TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv);
559 TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail);
562 * Create 3 chunks in the future. The offsets are relative
563 * to the current fifo tail
565 for (i = 0; i < 3; i++)
567 offset = (2 * i + 1) * sizeof (u32);
568 data = (u8 *) (test_data + (2 * i + 1));
571 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), data);
572 rv = rv > 0 ? 0 : rv;
575 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
577 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
578 offset + sizeof (u32));
581 clib_warning ("enqueue returned %d", rv);
587 vlib_cli_output (vm, "fifo after odd segs: %U", format_svm_fifo, f, 1);
589 TCP_TEST ((f->tail == 8), "fifo tail %u", f->tail);
590 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
591 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
594 * Try adding a completely overlapped segment
596 offset = 3 * sizeof (u32);
597 data = (u8 *) (test_data + 3);
598 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
601 clib_warning ("enqueue returned %d", rv);
606 vlib_cli_output (vm, "fifo after overlap seg: %U", format_svm_fifo, f, 1);
608 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
609 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
612 * Make sure format functions are not buggy
614 s = format (0, "%U", format_svm_fifo, f, 2);
618 * Paint some of missing data backwards
620 for (i = 3; i > 1; i--)
622 offset = (2 * i + 0) * sizeof (u32);
623 data = (u8 *) (test_data + (2 * i + 0));
624 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
626 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset,
627 offset + sizeof (u32));
630 clib_warning ("enqueue returned %d", rv);
636 vlib_cli_output (vm, "fifo before missing link: %U", format_svm_fifo, f,
638 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
639 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
640 ooo_seg = svm_fifo_first_ooo_segment (f);
641 TCP_TEST ((ooo_seg->start == 12),
642 "first ooo seg position %u", ooo_seg->start);
643 TCP_TEST ((ooo_seg->length == 16),
644 "first ooo seg length %u", ooo_seg->length);
647 * Enqueue the missing u32
649 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) (test_data + 2));
651 vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f,
653 TCP_TEST ((rv == 20), "bytes to be enqueued %u", rv);
654 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
655 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
660 for (i = 0; i < 7; i++)
662 rv = svm_fifo_dequeue_nowait (f, sizeof (u32), (u8 *) & data_word);
663 if (rv != sizeof (u32))
665 clib_warning ("bytes dequeues %u", rv);
668 if (data_word != test_data[i])
670 clib_warning ("recovered [%d] %d not %d", i, data_word,
677 * Test segment overlaps: last ooo segment overlaps all
680 f = fifo_prepare (fifo_size);
682 for (i = 0; i < 4; i++)
684 offset = (2 * i + 1) * sizeof (u32);
685 data = (u8 *) (test_data + (2 * i + 1));
686 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
688 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
689 offset + sizeof (u32));
692 clib_warning ("enqueue returned %d", rv);
697 rv = svm_fifo_enqueue_with_offset (f, 8, 21, data);
698 TCP_TEST ((rv == 0), "ooo enqueued %u", rv);
699 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
700 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
702 vec_validate (data_buf, vec_len (data));
703 svm_fifo_peek (f, 0, vec_len (data), data_buf);
704 if (compare_data (data_buf, data, 8, vec_len (data), &j))
706 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
708 vec_reset_length (data_buf);
711 * Test segment overlaps: enqueue and overlap ooo segments
714 f = fifo_prepare (fifo_size);
716 for (i = 0; i < 4; i++)
718 offset = (2 * i + 1) * sizeof (u32);
719 data = (u8 *) (test_data + (2 * i + 1));
720 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
722 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
723 offset + sizeof (u32));
726 clib_warning ("enqueue returned %d", rv);
731 rv = svm_fifo_enqueue_nowait (f, 29, data);
732 TCP_TEST ((rv == 32), "ooo enqueued %u", rv);
733 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
734 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
736 vec_validate (data_buf, vec_len (data));
737 svm_fifo_peek (f, 0, vec_len (data), data_buf);
738 if (compare_data (data_buf, data, 0, vec_len (data), &j))
740 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
745 vec_free (test_data);
751 vec_free (test_data);
756 tcp_test_fifo2 (vlib_main_t * vm)
759 u32 fifo_size = 1 << 20;
760 int i, rv, test_data_len;
762 test_pattern_t *tp, *vp, *test_data;
763 ooo_segment_t *ooo_seg;
765 test_data = test_pattern;
766 test_data_len = ARRAY_LEN (test_pattern);
768 vp = fifo_get_validate_pattern (vm, test_data, test_data_len);
771 f = fifo_prepare (fifo_size);
774 * Try with sorted data
776 for (i = 0; i < test_data_len; i++)
780 svm_fifo_enqueue_with_offset (f, tp->offset, tp->len, (u8 *) & data64);
783 /* Expected result: one big fat chunk at offset 4 */
784 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
785 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
786 ooo_seg = svm_fifo_first_ooo_segment (f);
787 TCP_TEST ((ooo_seg->start == 4),
788 "first ooo seg position %u", ooo_seg->start);
789 TCP_TEST ((ooo_seg->length == 2996),
790 "first ooo seg length %u", ooo_seg->length);
793 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
794 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
800 * Now try it again w/ unsorted data...
803 f = fifo_prepare (fifo_size);
805 for (i = 0; i < test_data_len; i++)
809 rv = svm_fifo_enqueue_with_offset (f, tp->offset, tp->len,
813 clib_warning ("enqueue returned %d", rv);
817 /* Expecting the same result: one big fat chunk at offset 4 */
818 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
819 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
820 ooo_seg = svm_fifo_first_ooo_segment (f);
821 TCP_TEST ((ooo_seg->start == 4),
822 "first ooo seg position %u", ooo_seg->start);
823 TCP_TEST ((ooo_seg->length == 2996),
824 "first ooo seg length %u", ooo_seg->length);
827 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
829 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
837 tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input)
840 u32 fifo_size = 4 << 10;
841 u32 fifo_initial_offset = 0;
842 u32 total_size = 2 << 10;
843 int overlap = 0, verbose = 0, randomize = 1, drop = 0, in_seq_all = 0;
844 u8 *data_pattern = 0, *data_buf = 0;
845 test_pattern_t *tp, *generate = 0;
846 u32 nsegs = 2, seg_size, length_so_far;
847 u32 current_offset, offset_increment, len_this_chunk;
848 u32 seed = 0xdeaddabe, j;
851 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
853 if (unformat (input, "fifo-size %d", &fifo_size))
855 else if (unformat (input, "total-size %d", &total_size))
857 else if (unformat (input, "verbose"))
859 else if (unformat (input, "overlap"))
861 else if (unformat (input, "initial-offset %d", &fifo_initial_offset))
863 else if (unformat (input, "seed %d", &seed))
865 else if (unformat (input, "nsegs %d", &nsegs))
867 else if (unformat (input, "no-randomize"))
869 else if (unformat (input, "in-seq-all"))
871 else if (unformat (input, "drop"))
875 clib_error_t *e = clib_error_return
876 (0, "unknown input `%U'", format_unformat_error, input);
877 clib_error_report (e);
882 if (total_size > fifo_size)
884 clib_warning ("total_size %d greater than fifo size %d", total_size,
888 if (overlap && randomize == 0)
890 clib_warning ("Can't enqueue in-order with overlap");
897 vec_validate (data_pattern, total_size - 1);
898 for (i = 0; i < vec_len (data_pattern); i++)
899 data_pattern[i] = i & 0xff;
904 seg_size = total_size / nsegs;
906 current_offset = randomize;
907 while (length_so_far < total_size)
909 vec_add2 (generate, tp, 1);
910 len_this_chunk = clib_min (seg_size, total_size - length_so_far);
911 tp->offset = current_offset;
912 tp->len = len_this_chunk;
914 if (overlap && (len_this_chunk == seg_size))
917 offset_increment = len_this_chunk
918 % (1 + (random_u32 (&seed) % len_this_chunk));
920 while (offset_increment == 0);
922 offset_increment = len_this_chunk;
924 current_offset += offset_increment;
925 length_so_far = tp->offset + tp->len;
929 * Validate segment list. Only valid for non-overlap cases.
932 fifo_validate_pattern (vm, generate, vec_len (generate));
936 vlib_cli_output (vm, "raw data pattern:");
937 for (i = 0; i < vec_len (generate); i++)
939 vlib_cli_output (vm, "[%d] offset %u len %u", i,
940 generate[i].offset, generate[i].len);
944 /* Randomize data pattern */
947 for (i = 0; i < vec_len (generate) / 2; i++)
949 u32 src_index, dst_index;
950 test_pattern_t _tmp, *tmp = &_tmp;
952 src_index = random_u32 (&seed) % vec_len (generate);
953 dst_index = random_u32 (&seed) % vec_len (generate);
955 tmp[0] = generate[dst_index];
956 generate[dst_index] = generate[src_index];
957 generate[src_index] = tmp[0];
961 vlib_cli_output (vm, "randomized data pattern:");
962 for (i = 0; i < vec_len (generate); i++)
964 vlib_cli_output (vm, "[%d] offset %u len %u", i,
965 generate[i].offset, generate[i].len);
971 * Create a fifo and add segments
973 f = fifo_prepare (fifo_size);
975 /* manually set head and tail pointers to validate modular arithmetic */
976 fifo_initial_offset = fifo_initial_offset % fifo_size;
977 f->head = fifo_initial_offset;
978 f->tail = fifo_initial_offset;
980 for (i = !randomize; i < vec_len (generate); i++)
983 svm_fifo_enqueue_with_offset (f, fifo_initial_offset + tp->offset,
985 (u8 *) data_pattern + tp->offset);
988 /* Add the first segment in order for non random data */
990 svm_fifo_enqueue_nowait (f, generate[0].len, (u8 *) data_pattern);
993 * Expected result: one big fat chunk at offset 1 if randomize == 1
997 vlib_cli_output (vm, "fifo before missing link: %U",
998 format_svm_fifo, f, 1 /* verbose */ );
1001 * Add the missing byte if segments were randomized
1005 u32 bytes_to_enq = 1;
1007 bytes_to_enq = total_size;
1008 rv = svm_fifo_enqueue_nowait (f, bytes_to_enq, data_pattern + 0);
1011 vlib_cli_output (vm, "in-order enqueue returned %d", rv);
1013 TCP_TEST ((rv == total_size), "enqueued %u expected %u", rv,
1018 TCP_TEST ((svm_fifo_has_ooo_data (f) == 0), "number of ooo segments %u",
1019 svm_fifo_number_ooo_segments (f));
1022 * Test if peeked data is the same as original data
1024 vec_validate (data_buf, vec_len (data_pattern));
1025 svm_fifo_peek (f, 0, vec_len (data_pattern), data_buf);
1026 if (compare_data (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1028 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j],
1031 vec_reset_length (data_buf);
1034 * Dequeue or drop all data
1038 svm_fifo_dequeue_drop (f, vec_len (data_pattern));
1042 svm_fifo_dequeue_nowait (f, vec_len (data_pattern), data_buf);
1044 (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1046 TCP_TEST (0, "[%d] dequeued %u expected %u", j, data_buf[j],
1051 TCP_TEST ((svm_fifo_max_dequeue (f) == 0), "fifo has %d bytes",
1052 svm_fifo_max_dequeue (f));
1055 vec_free (data_pattern);
1056 vec_free (data_buf);
1062 tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input)
1065 u32 fifo_size = 6 << 10;
1066 u32 fifo_initial_offset = 1000000000;
1067 u32 test_n_bytes = 5000, j;
1068 u8 *test_data = 0, *data_buf = 0;
1069 int i, rv, verbose = 0;
1071 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1073 if (unformat (input, "verbose"))
1077 clib_error_t *e = clib_error_return
1078 (0, "unknown input `%U'", format_unformat_error, input);
1079 clib_error_report (e);
1085 * Create a fifo and add segments
1087 f = fifo_prepare (fifo_size);
1089 /* Set head and tail pointers */
1090 fifo_initial_offset = fifo_initial_offset % fifo_size;
1091 svm_fifo_init_pointers (f, fifo_initial_offset);
1093 vec_validate (test_data, test_n_bytes - 1);
1094 for (i = 0; i < vec_len (test_data); i++)
1097 for (i = test_n_bytes - 1; i > 0; i--)
1099 rv = svm_fifo_enqueue_with_offset (f, fifo_initial_offset + i,
1100 sizeof (u8), &test_data[i]);
1102 vlib_cli_output (vm, "add [%d] [%d, %d]", i, i, i + sizeof (u8));
1105 clib_warning ("enqueue returned %d", rv);
1107 vec_free (test_data);
1112 svm_fifo_enqueue_nowait (f, sizeof (u8), &test_data[0]);
1114 vec_validate (data_buf, vec_len (test_data));
1116 svm_fifo_dequeue_nowait (f, vec_len (test_data), data_buf);
1117 rv = compare_data (data_buf, test_data, 0, vec_len (test_data), &j);
1119 vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
1121 TCP_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
1124 vec_free (test_data);
1129 tcp_test_fifo (vlib_main_t * vm, unformat_input_t * input)
1135 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
1137 res = tcp_test_fifo1 (vm, input);
1141 res = tcp_test_fifo2 (vm);
1146 * Run a number of fifo3 configs
1148 str = "nsegs 10 overlap seed 123";
1149 unformat_init_cstring (input, str);
1150 if (tcp_test_fifo3 (vm, input))
1152 unformat_free (input);
1154 str = "nsegs 10 overlap seed 123 in-seq-all";
1155 unformat_init_cstring (input, str);
1156 if (tcp_test_fifo3 (vm, input))
1158 unformat_free (input);
1160 str = "nsegs 10 overlap seed 123 initial-offset 3917";
1161 unformat_init_cstring (input, str);
1162 if (tcp_test_fifo3 (vm, input))
1164 unformat_free (input);
1166 str = "nsegs 10 overlap seed 123 initial-offset 3917 drop";
1167 unformat_init_cstring (input, str);
1168 if (tcp_test_fifo3 (vm, input))
1170 unformat_free (input);
1172 str = "nsegs 10 seed 123 initial-offset 3917 drop no-randomize";
1173 unformat_init_cstring (input, str);
1174 if (tcp_test_fifo3 (vm, input))
1176 unformat_free (input);
1180 if (unformat (input, "fifo3"))
1182 res = tcp_test_fifo3 (vm, input);
1184 else if (unformat (input, "fifo2"))
1186 res = tcp_test_fifo2 (vm);
1188 else if (unformat (input, "fifo1"))
1190 res = tcp_test_fifo1 (vm, input);
1192 else if (unformat (input, "fifo4"))
1194 res = tcp_test_fifo4 (vm, input);
1202 tcp_test_session (vlib_main_t * vm, unformat_input_t * input)
1205 tcp_connection_t *tc0;
1206 u8 sst = SESSION_TYPE_IP4_TCP;
1207 ip4_address_t local, remote;
1208 u16 local_port, remote_port;
1209 tcp_main_t *tm = vnet_get_tcp_main ();
1213 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1215 if (unformat (input, "del"))
1217 else if (unformat (input, "add"))
1225 local.as_u32 = clib_host_to_net_u32 (0x06000101);
1226 remote.as_u32 = clib_host_to_net_u32 (0x06000102);
1227 local_port = clib_host_to_net_u16 (1234);
1228 remote_port = clib_host_to_net_u16 (11234);
1230 pool_get (tm->connections[0], tc0);
1231 memset (tc0, 0, sizeof (*tc0));
1233 tc0->state = TCP_STATE_ESTABLISHED;
1235 tc0->c_c_index = tc0 - tm->connections[0];
1236 tc0->c_lcl_port = local_port;
1237 tc0->c_rmt_port = remote_port;
1239 tc0->c_thread_index = 0;
1240 tc0->c_lcl_ip4.as_u32 = local.as_u32;
1241 tc0->c_rmt_ip4.as_u32 = remote.as_u32;
1242 tc0->opt.mss = 1450;
1243 tcp_connection_init_vars (tc0);
1245 TCP_EVT_DBG (TCP_EVT_OPEN, tc0);
1247 if (stream_session_accept (&tc0->connection, 0 /* listener index */ ,
1248 sst, 0 /* notify */ ))
1249 clib_warning ("stream_session_accept failed");
1251 stream_session_accept_notify (&tc0->connection);
1255 tc0 = tcp_connection_get (0 /* connection index */ , 0 /* thread */ );
1256 tc0->state = TCP_STATE_CLOSED;
1257 stream_session_disconnect_notify (&tc0->connection);
1263 static clib_error_t *
1264 tcp_test (vlib_main_t * vm,
1265 unformat_input_t * input, vlib_cli_command_t * cmd_arg)
1269 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1271 if (unformat (input, "sack"))
1273 res = tcp_test_sack (vm, input);
1275 else if (unformat (input, "fifo"))
1277 res = tcp_test_fifo (vm, input);
1279 else if (unformat (input, "session"))
1281 res = tcp_test_session (vm, input);
1289 return clib_error_return (0, "TCP unit test failed");
1298 VLIB_CLI_COMMAND (tcp_test_command, static) =
1301 .short_help = "internal tcp unit tests",
1302 .function = tcp_test,
1308 * fd.io coding-style-patch-verification: ON
1311 * eval: (c-set-style "gnu")