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->rcv_opts.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->rcv_opts.sacks, sacks[i * 2]);
75 tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.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->high_sacked == 900), "max byte sacked %u", sb->high_sacked);
101 vec_reset_length (tc->rcv_opts.sacks);
102 for (i = 0; i < 1000 / 200; i++)
104 vec_add1 (tc->rcv_opts.sacks, sacks[i * 2 + 1]);
106 tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks);
107 tcp_rcv_sacks (tc, 0);
110 vlib_cli_output (vm, "sb after odd blocks:\n%U", format_tcp_scoreboard,
113 hole = scoreboard_first_hole (sb);
114 TCP_TEST ((pool_elts (sb->holes) == 1),
115 "scoreboard has %d holes", pool_elts (sb->holes));
116 TCP_TEST ((hole->start == 0 && hole->end == 100),
117 "first hole start %u end %u", hole->start, hole->end);
118 TCP_TEST ((sb->sacked_bytes == 900), "sacked bytes %d", sb->sacked_bytes);
119 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
120 TCP_TEST ((sb->high_sacked == 1000), "max sacked byte %u", sb->high_sacked);
121 TCP_TEST ((sb->last_sacked_bytes == 500),
122 "last sacked bytes %d", sb->last_sacked_bytes);
125 * Ack until byte 100, all bytes are now acked + sacked
127 tcp_rcv_sacks (tc, 100);
129 vlib_cli_output (vm, "ack until byte 100:\n%U", format_tcp_scoreboard,
132 TCP_TEST ((pool_elts (sb->holes) == 0),
133 "scoreboard has %d elements", pool_elts (sb->holes));
134 TCP_TEST ((sb->snd_una_adv == 900),
135 "snd_una_adv after ack %u", sb->snd_una_adv);
136 TCP_TEST ((sb->high_sacked == 1000), "max sacked byte %u", sb->high_sacked);
137 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
138 TCP_TEST ((sb->last_sacked_bytes == 0),
139 "last sacked bytes %d", sb->last_sacked_bytes);
145 vec_reset_length (tc->rcv_opts.sacks);
149 vec_add1 (tc->rcv_opts.sacks, block);
152 vlib_cli_output (vm, "add [1200, 1300]:\n%U", format_tcp_scoreboard, sb);
153 tc->snd_una_max = 1500;
156 tcp_rcv_sacks (tc, 1000);
159 vlib_cli_output (vm, "sb snd_una_max 1500, snd_una 1000:\n%U",
160 format_tcp_scoreboard, sb);
162 TCP_TEST ((sb->snd_una_adv == 0),
163 "snd_una_adv after ack %u", sb->snd_una_adv);
164 TCP_TEST ((pool_elts (sb->holes) == 2),
165 "scoreboard has %d holes", pool_elts (sb->holes));
166 hole = scoreboard_first_hole (sb);
167 TCP_TEST ((hole->start == 1000 && hole->end == 1200),
168 "first hole start %u end %u", hole->start, hole->end);
169 TCP_TEST ((sb->snd_una_adv == 0),
170 "snd_una_adv after ack %u", sb->snd_una_adv);
171 TCP_TEST ((sb->high_sacked == 1300), "max sacked byte %u", sb->high_sacked);
172 hole = scoreboard_last_hole (sb);
173 TCP_TEST ((hole->start == 1300 && hole->end == 1500),
174 "last hole start %u end %u", hole->start, hole->end);
175 TCP_TEST ((sb->sacked_bytes == 100), "sacked bytes %d", sb->sacked_bytes);
181 vec_reset_length (tc->rcv_opts.sacks);
182 tcp_rcv_sacks (tc, 1200);
185 vlib_cli_output (vm, "sb ack up to byte 1200:\n%U", format_tcp_scoreboard,
188 TCP_TEST ((sb->snd_una_adv == 100),
189 "snd_una_adv after ack %u", sb->snd_una_adv);
190 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
191 TCP_TEST ((pool_elts (sb->holes) == 1),
192 "scoreboard has %d elements", pool_elts (sb->holes));
193 hole = scoreboard_first_hole (sb);
194 TCP_TEST ((hole->prev == TCP_INVALID_SACK_HOLE_INDEX
195 && hole->next == TCP_INVALID_SACK_HOLE_INDEX), "hole is valid");
196 TCP_TEST ((sb->last_bytes_delivered == 100), "last bytes delivered %d",
197 sb->last_bytes_delivered);
200 * Add some more blocks and then remove all
202 vec_reset_length (tc->rcv_opts.sacks);
203 tc->snd_una += sb->snd_una_adv;
204 tc->snd_una_max = 1900;
205 for (i = 0; i < 5; i++)
207 block.start = i * 100 + 1200;
208 block.end = (i + 1) * 100 + 1200;
209 vec_add1 (tc->rcv_opts.sacks, block);
211 tcp_rcv_sacks (tc, 1900);
213 scoreboard_clear (sb);
215 vlib_cli_output (vm, "sb cleared all:\n%U", format_tcp_scoreboard, sb);
217 TCP_TEST ((pool_elts (sb->holes) == 0),
218 "number of holes %d", pool_elts (sb->holes));
219 TCP_TEST ((sb->head == TCP_INVALID_SACK_HOLE_INDEX), "head %u", sb->head);
220 TCP_TEST ((sb->tail == TCP_INVALID_SACK_HOLE_INDEX), "tail %u", sb->tail);
223 * Re-inject odd blocks and ack them all
227 tc->snd_una_max = 1000;
229 for (i = 0; i < 5; i++)
231 vec_add1 (tc->rcv_opts.sacks, sacks[i * 2 + 1]);
233 tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks);
234 tcp_rcv_sacks (tc, 0);
236 vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U",
237 format_tcp_scoreboard, sb);
239 tcp_rcv_sacks (tc, 950);
242 vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U",
243 format_tcp_scoreboard, sb);
245 TCP_TEST ((pool_elts (sb->holes) == 0),
246 "scoreboard has %d elements", pool_elts (sb->holes));
247 TCP_TEST ((sb->snd_una_adv == 50), "snd_una_adv %u", sb->snd_una_adv);
248 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
249 TCP_TEST ((sb->last_sacked_bytes == 0),
250 "last sacked bytes %d", sb->last_sacked_bytes);
253 * Inject one block, ack it and overlap hole
257 tc->snd_una_max = 1000;
262 vec_add1 (tc->rcv_opts.sacks, block);
263 tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks);
265 tcp_rcv_sacks (tc, 0);
268 vlib_cli_output (vm, "sb added [100, 500]:\n%U",
269 format_tcp_scoreboard, sb);
271 tcp_rcv_sacks (tc, 800);
274 vlib_cli_output (vm, "sb ack [0, 800]:\n%U", format_tcp_scoreboard, sb);
276 TCP_TEST ((pool_elts (sb->holes) == 1),
277 "scoreboard has %d elements", pool_elts (sb->holes));
278 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
279 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
280 TCP_TEST ((sb->last_sacked_bytes == 0),
281 "last sacked bytes %d", sb->last_sacked_bytes);
282 TCP_TEST ((sb->last_bytes_delivered == 400),
283 "last bytes delivered %d", sb->last_bytes_delivered);
289 tcp_test_sack_tx (vlib_main_t * vm, unformat_input_t * input)
291 tcp_connection_t _tc, *tc = &_tc;
293 int i, verbose = 0, expected;
295 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
297 if (unformat (input, "verbose"))
301 vlib_cli_output (vm, "parse error: '%U'", format_unformat_error,
307 memset (tc, 0, sizeof (*tc));
310 * Add odd sack block pairs
312 for (i = 1; i < 10; i += 2)
314 tcp_update_sack_list (tc, i * 100, (i + 1) * 100);
317 TCP_TEST ((vec_len (tc->snd_sacks) == 5), "sack blocks %d expected %d",
318 vec_len (tc->snd_sacks), 5);
319 TCP_TEST ((tc->snd_sacks[0].start = 900),
320 "first sack block start %u expected %u", tc->snd_sacks[0].start,
324 * Try to add one extra
326 sacks = vec_dup (tc->snd_sacks);
328 tcp_update_sack_list (tc, 1100, 1200);
330 vlib_cli_output (vm, "add new segment [1100, 1200]\n%U",
331 format_tcp_sacks, tc);
332 expected = 5 < TCP_MAX_SACK_BLOCKS ? 6 : 5;
333 TCP_TEST ((vec_len (tc->snd_sacks) == expected),
334 "sack blocks %d expected %d", vec_len (tc->snd_sacks), expected);
335 TCP_TEST ((tc->snd_sacks[0].start == 1100),
336 "first sack block start %u expected %u", tc->snd_sacks[0].start,
340 vec_free (tc->snd_sacks);
341 tc->snd_sacks = sacks;
344 * Overlap first 2 segment
347 tcp_update_sack_list (tc, 300, 300);
349 vlib_cli_output (vm, "overlap first 2 segments:\n%U",
350 format_tcp_sacks, tc);
351 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
352 vec_len (tc->snd_sacks), 3);
353 TCP_TEST ((tc->snd_sacks[0].start == 900),
354 "first sack block start %u expected %u", tc->snd_sacks[0].start,
360 tcp_update_sack_list (tc, 1100, 1200);
362 vlib_cli_output (vm, "add new segment [1100, 1200]\n%U",
363 format_tcp_sacks, tc);
364 TCP_TEST ((vec_len (tc->snd_sacks) == 4), "sack blocks %d expected %d",
365 vec_len (tc->snd_sacks), 4);
366 TCP_TEST ((tc->snd_sacks[0].start == 1100),
367 "first sack block start %u expected %u", tc->snd_sacks[0].start,
371 * Join middle segments
373 tcp_update_sack_list (tc, 800, 900);
375 vlib_cli_output (vm, "join middle segments [800, 900]\n%U",
376 format_tcp_sacks, tc);
378 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
379 vec_len (tc->snd_sacks), 3);
380 TCP_TEST ((tc->snd_sacks[0].start == 700),
381 "first sack block start %u expected %u", tc->snd_sacks[0].start,
385 * Advance rcv_nxt to overlap all
388 tcp_update_sack_list (tc, 1200, 1200);
390 vlib_cli_output (vm, "advance rcv_nxt to 1200\n%U", format_tcp_sacks, tc);
391 TCP_TEST ((vec_len (tc->snd_sacks) == 0), "sack blocks %d expected %d",
392 vec_len (tc->snd_sacks), 0);
397 tcp_test_sack (vlib_main_t * vm, unformat_input_t * input)
402 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
404 if (tcp_test_sack_tx (vm, input))
409 if (tcp_test_sack_rx (vm, input))
416 if (unformat (input, "tx"))
418 res = tcp_test_sack_tx (vm, input);
420 else if (unformat (input, "rx"))
422 res = tcp_test_sack_rx (vm, input);
437 test_pattern_t test_pattern[] = {
438 {380, 8}, {768, 8}, {1156, 8}, {1544, 8}, {1932, 8}, {2320, 8}, {2708, 8},
439 {2992, 8}, {372, 8}, {760, 8}, {1148, 8}, {1536, 8}, {1924, 8}, {2312, 8},
440 {2700, 8}, {2984, 8}, {364, 8}, {752, 8}, {1140, 8}, {1528, 8}, {1916, 8},
441 {2304, 8}, {2692, 8}, {2976, 8}, {356, 8}, {744, 8}, {1132, 8}, {1520, 8},
442 {1908, 8}, {2296, 8}, {2684, 8}, {2968, 8}, {348, 8}, {736, 8}, {1124, 8},
443 {1512, 8}, {1900, 8}, {2288, 8}, {2676, 8}, {2960, 8}, {340, 8}, {728, 8},
444 {1116, 8}, {1504, 8}, {1892, 8}, {2280, 8}, {2668, 8}, {2952, 8}, {332, 8},
445 {720, 8}, {1108, 8}, {1496, 8}, {1884, 8}, {2272, 8}, {2660, 8}, {2944, 8},
446 {324, 8}, {712, 8}, {1100, 8}, {1488, 8}, {1876, 8}, {2264, 8}, {2652, 8},
447 {2936, 8}, {316, 8}, {704, 8}, {1092, 8}, {1480, 8}, {1868, 8}, {2256, 8},
448 {2644, 8}, {2928, 8}, {308, 8}, {696, 8}, {1084, 8}, {1472, 8}, {1860, 8},
449 {2248, 8}, {2636, 8}, {2920, 8}, {300, 8}, {688, 8}, {1076, 8}, {1464, 8},
450 {1852, 8}, {2240, 8}, {2628, 8}, {2912, 8}, {292, 8}, {680, 8}, {1068, 8},
451 {1456, 8}, {1844, 8}, {2232, 8}, {2620, 8}, {2904, 8}, {284, 8}, {672, 8},
452 {1060, 8}, {1448, 8}, {1836, 8}, {2224, 8}, {2612, 8}, {2896, 8}, {276, 8},
453 {664, 8}, {1052, 8}, {1440, 8}, {1828, 8}, {2216, 8}, {2604, 8}, {2888, 8},
454 {268, 8}, {656, 8}, {1044, 8}, {1432, 8}, {1820, 8}, {2208, 8}, {2596, 8},
455 {2880, 8}, {260, 8}, {648, 8}, {1036, 8}, {1424, 8}, {1812, 8}, {2200, 8},
456 {2588, 8}, {2872, 8}, {252, 8}, {640, 8}, {1028, 8}, {1416, 8}, {1804, 8},
457 {2192, 8}, {2580, 8}, {2864, 8}, {244, 8}, {632, 8}, {1020, 8}, {1408, 8},
458 {1796, 8}, {2184, 8}, {2572, 8}, {2856, 8}, {236, 8}, {624, 8}, {1012, 8},
459 {1400, 8}, {1788, 8}, {2176, 8}, {2564, 8}, {2848, 8}, {228, 8}, {616, 8},
460 {1004, 8}, {1392, 8}, {1780, 8}, {2168, 8}, {2556, 8}, {2840, 8}, {220, 8},
461 {608, 8}, {996, 8}, {1384, 8}, {1772, 8}, {2160, 8}, {2548, 8}, {2832, 8},
462 {212, 8}, {600, 8}, {988, 8}, {1376, 8}, {1764, 8}, {2152, 8}, {2540, 8},
463 {2824, 8}, {204, 8}, {592, 8}, {980, 8}, {1368, 8}, {1756, 8}, {2144, 8},
464 {2532, 8}, {2816, 8}, {196, 8}, {584, 8}, {972, 8}, {1360, 8}, {1748, 8},
465 {2136, 8}, {2524, 8}, {2808, 8}, {188, 8}, {576, 8}, {964, 8}, {1352, 8},
466 {1740, 8}, {2128, 8}, {2516, 8}, {2800, 8}, {180, 8}, {568, 8}, {956, 8},
467 {1344, 8}, {1732, 8}, {2120, 8}, {2508, 8}, {2792, 8}, {172, 8}, {560, 8},
468 {948, 8}, {1336, 8}, {1724, 8}, {2112, 8}, {2500, 8}, {2784, 8}, {164, 8},
469 {552, 8}, {940, 8}, {1328, 8}, {1716, 8}, {2104, 8}, {2492, 8}, {2776, 8},
470 {156, 8}, {544, 8}, {932, 8}, {1320, 8}, {1708, 8}, {2096, 8}, {2484, 8},
471 {2768, 8}, {148, 8}, {536, 8}, {924, 8}, {1312, 8}, {1700, 8}, {2088, 8},
472 {2476, 8}, {2760, 8}, {140, 8}, {528, 8}, {916, 8}, {1304, 8}, {1692, 8},
473 {2080, 8}, {2468, 8}, {2752, 8}, {132, 8}, {520, 8}, {908, 8}, {1296, 8},
474 {1684, 8}, {2072, 8}, {2460, 8}, {2744, 8}, {124, 8}, {512, 8}, {900, 8},
475 {1288, 8}, {1676, 8}, {2064, 8}, {2452, 8}, {2736, 8}, {116, 8}, {504, 8},
476 {892, 8}, {1280, 8}, {1668, 8}, {2056, 8}, {2444, 8}, {2728, 8}, {108, 8},
477 {496, 8}, {884, 8}, {1272, 8}, {1660, 8}, {2048, 8}, {2436, 8}, {2720, 8},
478 {100, 8}, {488, 8}, {876, 8}, {1264, 8}, {1652, 8}, {2040, 8}, {2428, 8},
479 {2716, 4}, {92, 8}, {480, 8}, {868, 8}, {1256, 8}, {1644, 8}, {2032, 8},
480 {2420, 8}, {84, 8}, {472, 8}, {860, 8}, {1248, 8}, {1636, 8}, {2024, 8},
481 {2412, 8}, {76, 8}, {464, 8}, {852, 8}, {1240, 8}, {1628, 8}, {2016, 8},
482 {2404, 8}, {68, 8}, {456, 8}, {844, 8}, {1232, 8}, {1620, 8}, {2008, 8},
483 {2396, 8}, {60, 8}, {448, 8}, {836, 8}, {1224, 8}, {1612, 8}, {2000, 8},
484 {2388, 8}, {52, 8}, {440, 8}, {828, 8}, {1216, 8}, {1604, 8}, {1992, 8},
485 {2380, 8}, {44, 8}, {432, 8}, {820, 8}, {1208, 8}, {1596, 8}, {1984, 8},
486 {2372, 8}, {36, 8}, {424, 8}, {812, 8}, {1200, 8}, {1588, 8}, {1976, 8},
487 {2364, 8}, {28, 8}, {416, 8}, {804, 8}, {1192, 8}, {1580, 8}, {1968, 8},
488 {2356, 8}, {20, 8}, {408, 8}, {796, 8}, {1184, 8}, {1572, 8}, {1960, 8},
489 {2348, 8}, {12, 8}, {400, 8}, {788, 8}, {1176, 8}, {1564, 8}, {1952, 8},
490 {2340, 8}, {4, 8}, {392, 8}, {780, 8}, {1168, 8}, {1556, 8}, {1944, 8},
492 /* missing from original data set */
493 {388, 4}, {776, 4}, {1164, 4}, {1552, 4}, {1940, 4}, {2328, 4},
498 pattern_cmp (const void *arg1, const void *arg2)
500 test_pattern_t *a1 = (test_pattern_t *) arg1;
501 test_pattern_t *a2 = (test_pattern_t *) arg2;
503 if (a1->offset < a2->offset)
505 else if (a1->offset > a2->offset)
511 fifo_validate_pattern (vlib_main_t * vm, test_pattern_t * pattern,
514 test_pattern_t *tp = pattern;
517 /* Go through the pattern and make 100% sure it's sane */
518 for (i = 0; i < pattern_length - 1; i++)
520 if (tp->offset + tp->len != (tp + 1)->offset)
522 vlib_cli_output (vm, "[%d] missing {%d, %d}", i,
523 (tp->offset + tp->len),
524 (tp + 1)->offset - (tp->offset + tp->len));
532 static test_pattern_t *
533 fifo_get_validate_pattern (vlib_main_t * vm, test_pattern_t * test_data,
536 test_pattern_t *validate_pattern = 0;
538 /* Validate, and try segments in order... */
539 vec_validate (validate_pattern, test_data_len - 1);
540 memcpy (validate_pattern, test_data,
541 test_data_len * sizeof (test_pattern_t));
542 qsort ((u8 *) validate_pattern, test_data_len, sizeof (test_pattern_t),
545 if (fifo_validate_pattern (vm, validate_pattern, test_data_len) == 0)
548 return validate_pattern;
552 fifo_prepare (u32 fifo_size)
555 f = svm_fifo_create (fifo_size);
557 /* Paint fifo data vector with -1's */
558 memset (f->data, 0xFF, fifo_size);
564 compare_data (u8 * data1, u8 * data2, u32 start, u32 len, u32 * index)
568 for (i = start; i < len; i++)
570 if (data1[i] != data2[i])
580 tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input)
583 u32 fifo_size = 1 << 20;
586 int i, rv, verbose = 0;
587 u32 data_word, test_data_len, j;
588 ooo_segment_t *ooo_seg;
589 u8 *data, *s, *data_buf = 0;
591 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
593 if (unformat (input, "verbose"))
597 test_data_len = fifo_size / sizeof (u32);
598 vec_validate (test_data, test_data_len - 1);
600 for (i = 0; i < vec_len (test_data); i++)
603 f = fifo_prepare (fifo_size);
606 * Enqueue an initial (un-dequeued) chunk
608 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) test_data);
609 TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv);
610 TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail);
613 * Create 3 chunks in the future. The offsets are relative
614 * to the current fifo tail
616 for (i = 0; i < 3; i++)
618 offset = (2 * i + 1) * sizeof (u32) - f->tail;
619 data = (u8 *) (test_data + (2 * i + 1));
622 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), data);
623 rv = rv > 0 ? 0 : rv;
626 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
628 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
629 offset + sizeof (u32));
632 clib_warning ("enqueue returned %d", rv);
638 vlib_cli_output (vm, "fifo after odd segs: %U", format_svm_fifo, f, 1);
640 TCP_TEST ((f->tail == 8), "fifo tail %u", f->tail);
641 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
642 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
645 * Try adding a completely overlapped segment
647 offset = 3 * sizeof (u32) - f->tail;
648 data = (u8 *) (test_data + 3);
649 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
652 clib_warning ("enqueue returned %d", rv);
657 vlib_cli_output (vm, "fifo after overlap seg: %U", format_svm_fifo, f, 1);
659 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
660 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
663 * Make sure format functions are not buggy
665 s = format (0, "%U", format_svm_fifo, f, 2);
669 * Paint some of missing data backwards
671 for (i = 3; i > 1; i--)
673 offset = (2 * i + 0) * sizeof (u32) - f->tail;
674 data = (u8 *) (test_data + (2 * i + 0));
675 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
677 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset,
678 offset + sizeof (u32));
681 clib_warning ("enqueue returned %d", rv);
687 vlib_cli_output (vm, "fifo before missing link: %U", format_svm_fifo, f,
689 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
690 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
691 ooo_seg = svm_fifo_first_ooo_segment (f);
692 TCP_TEST ((ooo_seg->start == 12),
693 "first ooo seg position %u", ooo_seg->start);
694 TCP_TEST ((ooo_seg->length == 16),
695 "first ooo seg length %u", ooo_seg->length);
698 * Enqueue the missing u32
700 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) (test_data + 2));
702 vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f,
704 TCP_TEST ((rv == 20), "bytes to be enqueued %u", rv);
705 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
706 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
711 for (i = 0; i < 7; i++)
713 rv = svm_fifo_dequeue_nowait (f, sizeof (u32), (u8 *) & data_word);
714 if (rv != sizeof (u32))
716 clib_warning ("bytes dequeues %u", rv);
719 if (data_word != test_data[i])
721 clib_warning ("recovered [%d] %d not %d", i, data_word,
728 * Test segment overlaps: last ooo segment overlaps all
731 f = fifo_prepare (fifo_size);
733 for (i = 0; i < 4; i++)
735 offset = (2 * i + 1) * sizeof (u32) - f->tail;
736 data = (u8 *) (test_data + (2 * i + 1));
737 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
739 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
740 offset + sizeof (u32));
743 clib_warning ("enqueue returned %d", rv);
748 rv = svm_fifo_enqueue_with_offset (f, 8 - f->tail, 21, data);
749 TCP_TEST ((rv == 0), "ooo enqueued %u", rv);
750 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
751 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
753 vec_validate (data_buf, vec_len (data));
754 svm_fifo_peek (f, 0, vec_len (data), data_buf);
755 if (compare_data (data_buf, data, 8, vec_len (data), &j))
757 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
759 vec_reset_length (data_buf);
762 * Test segment overlaps: enqueue and overlap ooo segments
765 f = fifo_prepare (fifo_size);
767 for (i = 0; i < 4; i++)
769 offset = (2 * i + 1) * sizeof (u32) - f->tail;
770 data = (u8 *) (test_data + (2 * i + 1));
771 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
773 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
774 offset + sizeof (u32));
777 clib_warning ("enqueue returned %d", rv);
783 vlib_cli_output (vm, "fifo after enqueue: %U", format_svm_fifo, f, 1);
785 rv = svm_fifo_enqueue_nowait (f, 29, data);
787 vlib_cli_output (vm, "fifo after enqueueing 29: %U", format_svm_fifo, f,
789 TCP_TEST ((rv == 32), "ooo enqueued %u", rv);
790 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
791 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
793 vec_validate (data_buf, vec_len (data));
794 svm_fifo_peek (f, 0, vec_len (data), data_buf);
795 if (compare_data (data_buf, data, 0, vec_len (data), &j))
797 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
800 /* Try to peek beyond the data */
801 rv = svm_fifo_peek (f, svm_fifo_max_dequeue (f), vec_len (data), data_buf);
802 TCP_TEST ((rv == 0), "peeked %u expected 0", rv);
806 vec_free (test_data);
812 vec_free (test_data);
817 tcp_test_fifo2 (vlib_main_t * vm)
820 u32 fifo_size = 1 << 20;
821 int i, rv, test_data_len;
823 test_pattern_t *tp, *vp, *test_data;
824 ooo_segment_t *ooo_seg;
826 test_data = test_pattern;
827 test_data_len = ARRAY_LEN (test_pattern);
829 vp = fifo_get_validate_pattern (vm, test_data, test_data_len);
832 f = fifo_prepare (fifo_size);
835 * Try with sorted data
837 for (i = 0; i < test_data_len; i++)
841 svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len,
845 /* Expected result: one big fat chunk at offset 4 */
846 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
847 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
848 ooo_seg = svm_fifo_first_ooo_segment (f);
849 TCP_TEST ((ooo_seg->start == 4),
850 "first ooo seg position %u", ooo_seg->start);
851 TCP_TEST ((ooo_seg->length == 2996),
852 "first ooo seg length %u", ooo_seg->length);
855 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
856 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
862 * Now try it again w/ unsorted data...
865 f = fifo_prepare (fifo_size);
867 for (i = 0; i < test_data_len; i++)
871 rv = svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len,
875 clib_warning ("enqueue returned %d", rv);
879 /* Expecting the same result: one big fat chunk at offset 4 */
880 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
881 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
882 ooo_seg = svm_fifo_first_ooo_segment (f);
883 TCP_TEST ((ooo_seg->start == 4),
884 "first ooo seg position %u", ooo_seg->start);
885 TCP_TEST ((ooo_seg->length == 2996),
886 "first ooo seg length %u", ooo_seg->length);
889 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
891 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
899 tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input)
902 u32 fifo_size = 4 << 10;
903 u32 fifo_initial_offset = 0;
904 u32 total_size = 2 << 10;
905 int overlap = 0, verbose = 0, randomize = 1, drop = 0, in_seq_all = 0;
906 u8 *data_pattern = 0, *data_buf = 0;
907 test_pattern_t *tp, *generate = 0;
908 u32 nsegs = 2, seg_size, length_so_far;
909 u32 current_offset, offset_increment, len_this_chunk;
910 u32 seed = 0xdeaddabe, j;
913 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
915 if (unformat (input, "fifo-size %d", &fifo_size))
917 else if (unformat (input, "total-size %d", &total_size))
919 else if (unformat (input, "verbose"))
921 else if (unformat (input, "overlap"))
923 else if (unformat (input, "initial-offset %d", &fifo_initial_offset))
925 else if (unformat (input, "seed %d", &seed))
927 else if (unformat (input, "nsegs %d", &nsegs))
929 else if (unformat (input, "no-randomize"))
931 else if (unformat (input, "in-seq-all"))
933 else if (unformat (input, "drop"))
937 clib_error_t *e = clib_error_return
938 (0, "unknown input `%U'", format_unformat_error, input);
939 clib_error_report (e);
944 if (total_size > fifo_size)
946 clib_warning ("total_size %d greater than fifo size %d", total_size,
950 if (overlap && randomize == 0)
952 clib_warning ("Can't enqueue in-order with overlap");
959 vec_validate (data_pattern, total_size - 1);
960 for (i = 0; i < vec_len (data_pattern); i++)
961 data_pattern[i] = i & 0xff;
966 seg_size = total_size / nsegs;
968 current_offset = randomize;
969 while (length_so_far < total_size)
971 vec_add2 (generate, tp, 1);
972 len_this_chunk = clib_min (seg_size, total_size - length_so_far);
973 tp->offset = current_offset;
974 tp->len = len_this_chunk;
976 if (overlap && (len_this_chunk == seg_size))
979 offset_increment = len_this_chunk
980 % (1 + (random_u32 (&seed) % len_this_chunk));
982 while (offset_increment == 0);
984 offset_increment = len_this_chunk;
986 current_offset += offset_increment;
987 length_so_far = tp->offset + tp->len;
991 * Validate segment list. Only valid for non-overlap cases.
994 fifo_validate_pattern (vm, generate, vec_len (generate));
998 vlib_cli_output (vm, "raw data pattern:");
999 for (i = 0; i < vec_len (generate); i++)
1001 vlib_cli_output (vm, "[%d] offset %u len %u", i,
1002 generate[i].offset, generate[i].len);
1006 /* Randomize data pattern */
1009 for (i = 0; i < vec_len (generate) / 2; i++)
1011 u32 src_index, dst_index;
1012 test_pattern_t _tmp, *tmp = &_tmp;
1014 src_index = random_u32 (&seed) % vec_len (generate);
1015 dst_index = random_u32 (&seed) % vec_len (generate);
1017 tmp[0] = generate[dst_index];
1018 generate[dst_index] = generate[src_index];
1019 generate[src_index] = tmp[0];
1023 vlib_cli_output (vm, "randomized data pattern:");
1024 for (i = 0; i < vec_len (generate); i++)
1026 vlib_cli_output (vm, "[%d] offset %u len %u", i,
1027 generate[i].offset, generate[i].len);
1033 * Create a fifo and add segments
1035 f = fifo_prepare (fifo_size);
1037 /* manually set head and tail pointers to validate modular arithmetic */
1038 fifo_initial_offset = fifo_initial_offset % fifo_size;
1039 f->head = fifo_initial_offset;
1040 f->tail = fifo_initial_offset;
1042 for (i = !randomize; i < vec_len (generate); i++)
1045 svm_fifo_enqueue_with_offset (f,
1046 fifo_initial_offset + tp->offset -
1048 (u8 *) data_pattern + tp->offset);
1051 /* Add the first segment in order for non random data */
1053 svm_fifo_enqueue_nowait (f, generate[0].len, (u8 *) data_pattern);
1056 * Expected result: one big fat chunk at offset 1 if randomize == 1
1060 vlib_cli_output (vm, "fifo before missing link: %U",
1061 format_svm_fifo, f, 1 /* verbose */ );
1064 * Add the missing byte if segments were randomized
1068 u32 bytes_to_enq = 1;
1070 bytes_to_enq = total_size;
1071 rv = svm_fifo_enqueue_nowait (f, bytes_to_enq, data_pattern + 0);
1074 vlib_cli_output (vm, "in-order enqueue returned %d", rv);
1076 TCP_TEST ((rv == total_size), "enqueued %u expected %u", rv,
1081 TCP_TEST ((svm_fifo_has_ooo_data (f) == 0), "number of ooo segments %u",
1082 svm_fifo_number_ooo_segments (f));
1085 * Test if peeked data is the same as original data
1087 vec_validate (data_buf, vec_len (data_pattern));
1088 svm_fifo_peek (f, 0, vec_len (data_pattern), data_buf);
1089 if (compare_data (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1091 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j],
1094 vec_reset_length (data_buf);
1097 * Dequeue or drop all data
1101 svm_fifo_dequeue_drop (f, vec_len (data_pattern));
1105 svm_fifo_dequeue_nowait (f, vec_len (data_pattern), data_buf);
1107 (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1109 TCP_TEST (0, "[%d] dequeued %u expected %u", j, data_buf[j],
1114 TCP_TEST ((svm_fifo_max_dequeue (f) == 0), "fifo has %d bytes",
1115 svm_fifo_max_dequeue (f));
1118 vec_free (data_pattern);
1119 vec_free (data_buf);
1125 tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input)
1128 u32 fifo_size = 6 << 10;
1129 u32 fifo_initial_offset = 1000000000;
1130 u32 test_n_bytes = 5000, j;
1131 u8 *test_data = 0, *data_buf = 0;
1132 int i, rv, verbose = 0;
1134 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1136 if (unformat (input, "verbose"))
1140 clib_error_t *e = clib_error_return
1141 (0, "unknown input `%U'", format_unformat_error, input);
1142 clib_error_report (e);
1148 * Create a fifo and add segments
1150 f = fifo_prepare (fifo_size);
1152 /* Set head and tail pointers */
1153 fifo_initial_offset = fifo_initial_offset % fifo_size;
1154 svm_fifo_init_pointers (f, fifo_initial_offset);
1156 vec_validate (test_data, test_n_bytes - 1);
1157 for (i = 0; i < vec_len (test_data); i++)
1160 for (i = test_n_bytes - 1; i > 0; i--)
1162 rv = svm_fifo_enqueue_with_offset (f, fifo_initial_offset + i - f->tail,
1163 sizeof (u8), &test_data[i]);
1165 vlib_cli_output (vm, "add [%d] [%d, %d]", i, i, i + sizeof (u8));
1168 clib_warning ("enqueue returned %d", rv);
1170 vec_free (test_data);
1175 svm_fifo_enqueue_nowait (f, sizeof (u8), &test_data[0]);
1177 vec_validate (data_buf, vec_len (test_data));
1179 svm_fifo_dequeue_nowait (f, vec_len (test_data), data_buf);
1180 rv = compare_data (data_buf, test_data, 0, vec_len (test_data), &j);
1182 vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
1184 TCP_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
1187 vec_free (test_data);
1192 tcp_test_fifo (vlib_main_t * vm, unformat_input_t * input)
1198 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
1200 res = tcp_test_fifo1 (vm, input);
1204 res = tcp_test_fifo2 (vm);
1209 * Run a number of fifo3 configs
1211 str = "nsegs 10 overlap seed 123";
1212 unformat_init_cstring (input, str);
1213 if (tcp_test_fifo3 (vm, input))
1215 unformat_free (input);
1217 str = "nsegs 10 overlap seed 123 in-seq-all";
1218 unformat_init_cstring (input, str);
1219 if (tcp_test_fifo3 (vm, input))
1221 unformat_free (input);
1223 str = "nsegs 10 overlap seed 123 initial-offset 3917";
1224 unformat_init_cstring (input, str);
1225 if (tcp_test_fifo3 (vm, input))
1227 unformat_free (input);
1229 str = "nsegs 10 overlap seed 123 initial-offset 3917 drop";
1230 unformat_init_cstring (input, str);
1231 if (tcp_test_fifo3 (vm, input))
1233 unformat_free (input);
1235 str = "nsegs 10 seed 123 initial-offset 3917 drop no-randomize";
1236 unformat_init_cstring (input, str);
1237 if (tcp_test_fifo3 (vm, input))
1239 unformat_free (input);
1243 if (unformat (input, "fifo3"))
1245 res = tcp_test_fifo3 (vm, input);
1247 else if (unformat (input, "fifo2"))
1249 res = tcp_test_fifo2 (vm);
1251 else if (unformat (input, "fifo1"))
1253 res = tcp_test_fifo1 (vm, input);
1255 else if (unformat (input, "fifo4"))
1257 res = tcp_test_fifo4 (vm, input);
1265 tcp_test_session (vlib_main_t * vm, unformat_input_t * input)
1268 tcp_connection_t *tc0;
1269 u8 sst = SESSION_TYPE_IP4_TCP;
1270 ip4_address_t local, remote;
1271 u16 local_port, remote_port;
1272 tcp_main_t *tm = vnet_get_tcp_main ();
1276 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1278 if (unformat (input, "del"))
1280 else if (unformat (input, "add"))
1288 local.as_u32 = clib_host_to_net_u32 (0x06000101);
1289 remote.as_u32 = clib_host_to_net_u32 (0x06000102);
1290 local_port = clib_host_to_net_u16 (1234);
1291 remote_port = clib_host_to_net_u16 (11234);
1293 pool_get (tm->connections[0], tc0);
1294 memset (tc0, 0, sizeof (*tc0));
1296 tc0->state = TCP_STATE_ESTABLISHED;
1298 tc0->c_c_index = tc0 - tm->connections[0];
1299 tc0->c_lcl_port = local_port;
1300 tc0->c_rmt_port = remote_port;
1302 tc0->c_thread_index = 0;
1303 tc0->c_lcl_ip4.as_u32 = local.as_u32;
1304 tc0->c_rmt_ip4.as_u32 = remote.as_u32;
1305 tc0->rcv_opts.mss = 1450;
1306 tcp_connection_init_vars (tc0);
1308 TCP_EVT_DBG (TCP_EVT_OPEN, tc0);
1310 if (stream_session_accept (&tc0->connection, 0 /* listener index */ ,
1311 sst, 0 /* notify */ ))
1312 clib_warning ("stream_session_accept failed");
1314 stream_session_accept_notify (&tc0->connection);
1318 tc0 = tcp_connection_get (0 /* connection index */ , 0 /* thread */ );
1319 tc0->state = TCP_STATE_CLOSED;
1320 stream_session_disconnect_notify (&tc0->connection);
1326 static clib_error_t *
1327 tcp_test (vlib_main_t * vm,
1328 unformat_input_t * input, vlib_cli_command_t * cmd_arg)
1332 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1334 if (unformat (input, "sack"))
1336 res = tcp_test_sack (vm, input);
1338 else if (unformat (input, "fifo"))
1340 res = tcp_test_fifo (vm, input);
1342 else if (unformat (input, "session"))
1344 res = tcp_test_session (vm, input);
1352 return clib_error_return (0, "TCP unit test failed");
1361 VLIB_CLI_COMMAND (tcp_test_command, static) =
1364 .short_help = "internal tcp unit tests",
1365 .function = tcp_test,
1371 * fd.io coding-style-patch-verification: ON
1374 * eval: (c-set-style "gnu")