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;
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);
329 TCP_TEST ((vec_len (tc->snd_sacks) == 5), "sack blocks %d expected %d",
330 vec_len (tc->snd_sacks), 5);
331 TCP_TEST ((tc->snd_sacks[0].start == 1100),
332 "first sack block start %u expected %u", tc->snd_sacks[0].start,
336 vec_free (tc->snd_sacks);
337 tc->snd_sacks = sacks;
340 * Overlap first 2 segment
343 tcp_update_sack_list (tc, 300, 300);
345 vlib_cli_output (vm, "overlap first 2 segments:\n%U",
346 format_tcp_sacks, tc);
347 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
348 vec_len (tc->snd_sacks), 3);
349 TCP_TEST ((tc->snd_sacks[0].start == 900),
350 "first sack block start %u expected %u", tc->snd_sacks[0].start,
356 tcp_update_sack_list (tc, 1100, 1200);
358 vlib_cli_output (vm, "add new segment [1100, 1200]\n%U",
359 format_tcp_sacks, tc);
360 TCP_TEST ((vec_len (tc->snd_sacks) == 4), "sack blocks %d expected %d",
361 vec_len (tc->snd_sacks), 4);
362 TCP_TEST ((tc->snd_sacks[0].start == 1100),
363 "first sack block start %u expected %u", tc->snd_sacks[0].start,
367 * Join middle segments
369 tcp_update_sack_list (tc, 800, 900);
371 vlib_cli_output (vm, "join middle segments [800, 900]\n%U",
372 format_tcp_sacks, tc);
374 TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d",
375 vec_len (tc->snd_sacks), 3);
376 TCP_TEST ((tc->snd_sacks[0].start == 700),
377 "first sack block start %u expected %u", tc->snd_sacks[0].start,
381 * Advance rcv_nxt to overlap all
384 tcp_update_sack_list (tc, 1200, 1200);
386 vlib_cli_output (vm, "advance rcv_nxt to 1200\n%U", format_tcp_sacks, tc);
387 TCP_TEST ((vec_len (tc->snd_sacks) == 0), "sack blocks %d expected %d",
388 vec_len (tc->snd_sacks), 0);
393 tcp_test_sack (vlib_main_t * vm, unformat_input_t * input)
398 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
400 if (tcp_test_sack_tx (vm, input))
405 if (tcp_test_sack_rx (vm, input))
412 if (unformat (input, "tx"))
414 res = tcp_test_sack_tx (vm, input);
416 else if (unformat (input, "rx"))
418 res = tcp_test_sack_rx (vm, input);
433 test_pattern_t test_pattern[] = {
434 {380, 8}, {768, 8}, {1156, 8}, {1544, 8}, {1932, 8}, {2320, 8}, {2708, 8},
435 {2992, 8}, {372, 8}, {760, 8}, {1148, 8}, {1536, 8}, {1924, 8}, {2312, 8},
436 {2700, 8}, {2984, 8}, {364, 8}, {752, 8}, {1140, 8}, {1528, 8}, {1916, 8},
437 {2304, 8}, {2692, 8}, {2976, 8}, {356, 8}, {744, 8}, {1132, 8}, {1520, 8},
438 {1908, 8}, {2296, 8}, {2684, 8}, {2968, 8}, {348, 8}, {736, 8}, {1124, 8},
439 {1512, 8}, {1900, 8}, {2288, 8}, {2676, 8}, {2960, 8}, {340, 8}, {728, 8},
440 {1116, 8}, {1504, 8}, {1892, 8}, {2280, 8}, {2668, 8}, {2952, 8}, {332, 8},
441 {720, 8}, {1108, 8}, {1496, 8}, {1884, 8}, {2272, 8}, {2660, 8}, {2944, 8},
442 {324, 8}, {712, 8}, {1100, 8}, {1488, 8}, {1876, 8}, {2264, 8}, {2652, 8},
443 {2936, 8}, {316, 8}, {704, 8}, {1092, 8}, {1480, 8}, {1868, 8}, {2256, 8},
444 {2644, 8}, {2928, 8}, {308, 8}, {696, 8}, {1084, 8}, {1472, 8}, {1860, 8},
445 {2248, 8}, {2636, 8}, {2920, 8}, {300, 8}, {688, 8}, {1076, 8}, {1464, 8},
446 {1852, 8}, {2240, 8}, {2628, 8}, {2912, 8}, {292, 8}, {680, 8}, {1068, 8},
447 {1456, 8}, {1844, 8}, {2232, 8}, {2620, 8}, {2904, 8}, {284, 8}, {672, 8},
448 {1060, 8}, {1448, 8}, {1836, 8}, {2224, 8}, {2612, 8}, {2896, 8}, {276, 8},
449 {664, 8}, {1052, 8}, {1440, 8}, {1828, 8}, {2216, 8}, {2604, 8}, {2888, 8},
450 {268, 8}, {656, 8}, {1044, 8}, {1432, 8}, {1820, 8}, {2208, 8}, {2596, 8},
451 {2880, 8}, {260, 8}, {648, 8}, {1036, 8}, {1424, 8}, {1812, 8}, {2200, 8},
452 {2588, 8}, {2872, 8}, {252, 8}, {640, 8}, {1028, 8}, {1416, 8}, {1804, 8},
453 {2192, 8}, {2580, 8}, {2864, 8}, {244, 8}, {632, 8}, {1020, 8}, {1408, 8},
454 {1796, 8}, {2184, 8}, {2572, 8}, {2856, 8}, {236, 8}, {624, 8}, {1012, 8},
455 {1400, 8}, {1788, 8}, {2176, 8}, {2564, 8}, {2848, 8}, {228, 8}, {616, 8},
456 {1004, 8}, {1392, 8}, {1780, 8}, {2168, 8}, {2556, 8}, {2840, 8}, {220, 8},
457 {608, 8}, {996, 8}, {1384, 8}, {1772, 8}, {2160, 8}, {2548, 8}, {2832, 8},
458 {212, 8}, {600, 8}, {988, 8}, {1376, 8}, {1764, 8}, {2152, 8}, {2540, 8},
459 {2824, 8}, {204, 8}, {592, 8}, {980, 8}, {1368, 8}, {1756, 8}, {2144, 8},
460 {2532, 8}, {2816, 8}, {196, 8}, {584, 8}, {972, 8}, {1360, 8}, {1748, 8},
461 {2136, 8}, {2524, 8}, {2808, 8}, {188, 8}, {576, 8}, {964, 8}, {1352, 8},
462 {1740, 8}, {2128, 8}, {2516, 8}, {2800, 8}, {180, 8}, {568, 8}, {956, 8},
463 {1344, 8}, {1732, 8}, {2120, 8}, {2508, 8}, {2792, 8}, {172, 8}, {560, 8},
464 {948, 8}, {1336, 8}, {1724, 8}, {2112, 8}, {2500, 8}, {2784, 8}, {164, 8},
465 {552, 8}, {940, 8}, {1328, 8}, {1716, 8}, {2104, 8}, {2492, 8}, {2776, 8},
466 {156, 8}, {544, 8}, {932, 8}, {1320, 8}, {1708, 8}, {2096, 8}, {2484, 8},
467 {2768, 8}, {148, 8}, {536, 8}, {924, 8}, {1312, 8}, {1700, 8}, {2088, 8},
468 {2476, 8}, {2760, 8}, {140, 8}, {528, 8}, {916, 8}, {1304, 8}, {1692, 8},
469 {2080, 8}, {2468, 8}, {2752, 8}, {132, 8}, {520, 8}, {908, 8}, {1296, 8},
470 {1684, 8}, {2072, 8}, {2460, 8}, {2744, 8}, {124, 8}, {512, 8}, {900, 8},
471 {1288, 8}, {1676, 8}, {2064, 8}, {2452, 8}, {2736, 8}, {116, 8}, {504, 8},
472 {892, 8}, {1280, 8}, {1668, 8}, {2056, 8}, {2444, 8}, {2728, 8}, {108, 8},
473 {496, 8}, {884, 8}, {1272, 8}, {1660, 8}, {2048, 8}, {2436, 8}, {2720, 8},
474 {100, 8}, {488, 8}, {876, 8}, {1264, 8}, {1652, 8}, {2040, 8}, {2428, 8},
475 {2716, 4}, {92, 8}, {480, 8}, {868, 8}, {1256, 8}, {1644, 8}, {2032, 8},
476 {2420, 8}, {84, 8}, {472, 8}, {860, 8}, {1248, 8}, {1636, 8}, {2024, 8},
477 {2412, 8}, {76, 8}, {464, 8}, {852, 8}, {1240, 8}, {1628, 8}, {2016, 8},
478 {2404, 8}, {68, 8}, {456, 8}, {844, 8}, {1232, 8}, {1620, 8}, {2008, 8},
479 {2396, 8}, {60, 8}, {448, 8}, {836, 8}, {1224, 8}, {1612, 8}, {2000, 8},
480 {2388, 8}, {52, 8}, {440, 8}, {828, 8}, {1216, 8}, {1604, 8}, {1992, 8},
481 {2380, 8}, {44, 8}, {432, 8}, {820, 8}, {1208, 8}, {1596, 8}, {1984, 8},
482 {2372, 8}, {36, 8}, {424, 8}, {812, 8}, {1200, 8}, {1588, 8}, {1976, 8},
483 {2364, 8}, {28, 8}, {416, 8}, {804, 8}, {1192, 8}, {1580, 8}, {1968, 8},
484 {2356, 8}, {20, 8}, {408, 8}, {796, 8}, {1184, 8}, {1572, 8}, {1960, 8},
485 {2348, 8}, {12, 8}, {400, 8}, {788, 8}, {1176, 8}, {1564, 8}, {1952, 8},
486 {2340, 8}, {4, 8}, {392, 8}, {780, 8}, {1168, 8}, {1556, 8}, {1944, 8},
488 /* missing from original data set */
489 {388, 4}, {776, 4}, {1164, 4}, {1552, 4}, {1940, 4}, {2328, 4},
494 pattern_cmp (const void *arg1, const void *arg2)
496 test_pattern_t *a1 = (test_pattern_t *) arg1;
497 test_pattern_t *a2 = (test_pattern_t *) arg2;
499 if (a1->offset < a2->offset)
501 else if (a1->offset > a2->offset)
507 fifo_validate_pattern (vlib_main_t * vm, test_pattern_t * pattern,
510 test_pattern_t *tp = pattern;
513 /* Go through the pattern and make 100% sure it's sane */
514 for (i = 0; i < pattern_length - 1; i++)
516 if (tp->offset + tp->len != (tp + 1)->offset)
518 vlib_cli_output (vm, "[%d] missing {%d, %d}", i,
519 (tp->offset + tp->len),
520 (tp + 1)->offset - (tp->offset + tp->len));
528 static test_pattern_t *
529 fifo_get_validate_pattern (vlib_main_t * vm, test_pattern_t * test_data,
532 test_pattern_t *validate_pattern = 0;
534 /* Validate, and try segments in order... */
535 vec_validate (validate_pattern, test_data_len - 1);
536 memcpy (validate_pattern, test_data,
537 test_data_len * sizeof (test_pattern_t));
538 qsort ((u8 *) validate_pattern, test_data_len, sizeof (test_pattern_t),
541 if (fifo_validate_pattern (vm, validate_pattern, test_data_len) == 0)
544 return validate_pattern;
548 fifo_prepare (u32 fifo_size)
551 f = svm_fifo_create (fifo_size);
553 /* Paint fifo data vector with -1's */
554 memset (f->data, 0xFF, fifo_size);
560 compare_data (u8 * data1, u8 * data2, u32 start, u32 len, u32 * index)
564 for (i = start; i < len; i++)
566 if (data1[i] != data2[i])
576 tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input)
579 u32 fifo_size = 1 << 20;
582 int i, rv, verbose = 0;
583 u32 data_word, test_data_len, j;
584 ooo_segment_t *ooo_seg;
585 u8 *data, *s, *data_buf = 0;
587 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
589 if (unformat (input, "verbose"))
593 test_data_len = fifo_size / sizeof (u32);
594 vec_validate (test_data, test_data_len - 1);
596 for (i = 0; i < vec_len (test_data); i++)
599 f = fifo_prepare (fifo_size);
602 * Enqueue an initial (un-dequeued) chunk
604 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) test_data);
605 TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv);
606 TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail);
609 * Create 3 chunks in the future. The offsets are relative
610 * to the current fifo tail
612 for (i = 0; i < 3; i++)
614 offset = (2 * i + 1) * sizeof (u32) - f->tail;
615 data = (u8 *) (test_data + (2 * i + 1));
618 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), data);
619 rv = rv > 0 ? 0 : rv;
622 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
624 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
625 offset + sizeof (u32));
628 clib_warning ("enqueue returned %d", rv);
634 vlib_cli_output (vm, "fifo after odd segs: %U", format_svm_fifo, f, 1);
636 TCP_TEST ((f->tail == 8), "fifo tail %u", f->tail);
637 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
638 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
641 * Try adding a completely overlapped segment
643 offset = 3 * sizeof (u32) - f->tail;
644 data = (u8 *) (test_data + 3);
645 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
648 clib_warning ("enqueue returned %d", rv);
653 vlib_cli_output (vm, "fifo after overlap seg: %U", format_svm_fifo, f, 1);
655 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2),
656 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
659 * Make sure format functions are not buggy
661 s = format (0, "%U", format_svm_fifo, f, 2);
665 * Paint some of missing data backwards
667 for (i = 3; i > 1; i--)
669 offset = (2 * i + 0) * sizeof (u32) - f->tail;
670 data = (u8 *) (test_data + (2 * i + 0));
671 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
673 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset,
674 offset + sizeof (u32));
677 clib_warning ("enqueue returned %d", rv);
683 vlib_cli_output (vm, "fifo before missing link: %U", format_svm_fifo, f,
685 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
686 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
687 ooo_seg = svm_fifo_first_ooo_segment (f);
688 TCP_TEST ((ooo_seg->start == 12),
689 "first ooo seg position %u", ooo_seg->start);
690 TCP_TEST ((ooo_seg->length == 16),
691 "first ooo seg length %u", ooo_seg->length);
694 * Enqueue the missing u32
696 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) (test_data + 2));
698 vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f,
700 TCP_TEST ((rv == 20), "bytes to be enqueued %u", rv);
701 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
702 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
707 for (i = 0; i < 7; i++)
709 rv = svm_fifo_dequeue_nowait (f, sizeof (u32), (u8 *) & data_word);
710 if (rv != sizeof (u32))
712 clib_warning ("bytes dequeues %u", rv);
715 if (data_word != test_data[i])
717 clib_warning ("recovered [%d] %d not %d", i, data_word,
724 * Test segment overlaps: last ooo segment overlaps all
727 f = fifo_prepare (fifo_size);
729 for (i = 0; i < 4; i++)
731 offset = (2 * i + 1) * sizeof (u32) - f->tail;
732 data = (u8 *) (test_data + (2 * i + 1));
733 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
735 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
736 offset + sizeof (u32));
739 clib_warning ("enqueue returned %d", rv);
744 rv = svm_fifo_enqueue_with_offset (f, 8 - f->tail, 21, data);
745 TCP_TEST ((rv == 0), "ooo enqueued %u", rv);
746 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
747 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
749 vec_validate (data_buf, vec_len (data));
750 svm_fifo_peek (f, 0, vec_len (data), data_buf);
751 if (compare_data (data_buf, data, 8, vec_len (data), &j))
753 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
755 vec_reset_length (data_buf);
758 * Test segment overlaps: enqueue and overlap ooo segments
761 f = fifo_prepare (fifo_size);
763 for (i = 0; i < 4; i++)
765 offset = (2 * i + 1) * sizeof (u32) - f->tail;
766 data = (u8 *) (test_data + (2 * i + 1));
767 rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data);
769 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
770 offset + sizeof (u32));
773 clib_warning ("enqueue returned %d", rv);
779 vlib_cli_output (vm, "fifo after enqueue: %U", format_svm_fifo, f, 1);
781 rv = svm_fifo_enqueue_nowait (f, 29, data);
783 vlib_cli_output (vm, "fifo after enqueueing 29: %U", format_svm_fifo, f,
785 TCP_TEST ((rv == 32), "ooo enqueued %u", rv);
786 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
787 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
789 vec_validate (data_buf, vec_len (data));
790 svm_fifo_peek (f, 0, vec_len (data), data_buf);
791 if (compare_data (data_buf, data, 0, vec_len (data), &j))
793 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]);
796 /* Try to peek beyond the data */
797 rv = svm_fifo_peek (f, svm_fifo_max_dequeue (f), vec_len (data), data_buf);
798 TCP_TEST ((rv == 0), "peeked %u expected 0", rv);
802 vec_free (test_data);
808 vec_free (test_data);
813 tcp_test_fifo2 (vlib_main_t * vm)
816 u32 fifo_size = 1 << 20;
817 int i, rv, test_data_len;
819 test_pattern_t *tp, *vp, *test_data;
820 ooo_segment_t *ooo_seg;
822 test_data = test_pattern;
823 test_data_len = ARRAY_LEN (test_pattern);
825 vp = fifo_get_validate_pattern (vm, test_data, test_data_len);
828 f = fifo_prepare (fifo_size);
831 * Try with sorted data
833 for (i = 0; i < test_data_len; i++)
837 svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len,
841 /* Expected result: one big fat chunk at offset 4 */
842 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
843 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
844 ooo_seg = svm_fifo_first_ooo_segment (f);
845 TCP_TEST ((ooo_seg->start == 4),
846 "first ooo seg position %u", ooo_seg->start);
847 TCP_TEST ((ooo_seg->length == 2996),
848 "first ooo seg length %u", ooo_seg->length);
851 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
852 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
858 * Now try it again w/ unsorted data...
861 f = fifo_prepare (fifo_size);
863 for (i = 0; i < test_data_len; i++)
867 rv = svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len,
871 clib_warning ("enqueue returned %d", rv);
875 /* Expecting the same result: one big fat chunk at offset 4 */
876 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
877 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
878 ooo_seg = svm_fifo_first_ooo_segment (f);
879 TCP_TEST ((ooo_seg->start == 4),
880 "first ooo seg position %u", ooo_seg->start);
881 TCP_TEST ((ooo_seg->length == 2996),
882 "first ooo seg length %u", ooo_seg->length);
885 rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64);
887 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
895 tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input)
898 u32 fifo_size = 4 << 10;
899 u32 fifo_initial_offset = 0;
900 u32 total_size = 2 << 10;
901 int overlap = 0, verbose = 0, randomize = 1, drop = 0, in_seq_all = 0;
902 u8 *data_pattern = 0, *data_buf = 0;
903 test_pattern_t *tp, *generate = 0;
904 u32 nsegs = 2, seg_size, length_so_far;
905 u32 current_offset, offset_increment, len_this_chunk;
906 u32 seed = 0xdeaddabe, j;
909 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
911 if (unformat (input, "fifo-size %d", &fifo_size))
913 else if (unformat (input, "total-size %d", &total_size))
915 else if (unformat (input, "verbose"))
917 else if (unformat (input, "overlap"))
919 else if (unformat (input, "initial-offset %d", &fifo_initial_offset))
921 else if (unformat (input, "seed %d", &seed))
923 else if (unformat (input, "nsegs %d", &nsegs))
925 else if (unformat (input, "no-randomize"))
927 else if (unformat (input, "in-seq-all"))
929 else if (unformat (input, "drop"))
933 clib_error_t *e = clib_error_return
934 (0, "unknown input `%U'", format_unformat_error, input);
935 clib_error_report (e);
940 if (total_size > fifo_size)
942 clib_warning ("total_size %d greater than fifo size %d", total_size,
946 if (overlap && randomize == 0)
948 clib_warning ("Can't enqueue in-order with overlap");
955 vec_validate (data_pattern, total_size - 1);
956 for (i = 0; i < vec_len (data_pattern); i++)
957 data_pattern[i] = i & 0xff;
962 seg_size = total_size / nsegs;
964 current_offset = randomize;
965 while (length_so_far < total_size)
967 vec_add2 (generate, tp, 1);
968 len_this_chunk = clib_min (seg_size, total_size - length_so_far);
969 tp->offset = current_offset;
970 tp->len = len_this_chunk;
972 if (overlap && (len_this_chunk == seg_size))
975 offset_increment = len_this_chunk
976 % (1 + (random_u32 (&seed) % len_this_chunk));
978 while (offset_increment == 0);
980 offset_increment = len_this_chunk;
982 current_offset += offset_increment;
983 length_so_far = tp->offset + tp->len;
987 * Validate segment list. Only valid for non-overlap cases.
990 fifo_validate_pattern (vm, generate, vec_len (generate));
994 vlib_cli_output (vm, "raw data pattern:");
995 for (i = 0; i < vec_len (generate); i++)
997 vlib_cli_output (vm, "[%d] offset %u len %u", i,
998 generate[i].offset, generate[i].len);
1002 /* Randomize data pattern */
1005 for (i = 0; i < vec_len (generate) / 2; i++)
1007 u32 src_index, dst_index;
1008 test_pattern_t _tmp, *tmp = &_tmp;
1010 src_index = random_u32 (&seed) % vec_len (generate);
1011 dst_index = random_u32 (&seed) % vec_len (generate);
1013 tmp[0] = generate[dst_index];
1014 generate[dst_index] = generate[src_index];
1015 generate[src_index] = tmp[0];
1019 vlib_cli_output (vm, "randomized data pattern:");
1020 for (i = 0; i < vec_len (generate); i++)
1022 vlib_cli_output (vm, "[%d] offset %u len %u", i,
1023 generate[i].offset, generate[i].len);
1029 * Create a fifo and add segments
1031 f = fifo_prepare (fifo_size);
1033 /* manually set head and tail pointers to validate modular arithmetic */
1034 fifo_initial_offset = fifo_initial_offset % fifo_size;
1035 f->head = fifo_initial_offset;
1036 f->tail = fifo_initial_offset;
1038 for (i = !randomize; i < vec_len (generate); i++)
1041 svm_fifo_enqueue_with_offset (f,
1042 fifo_initial_offset + tp->offset -
1044 (u8 *) data_pattern + tp->offset);
1047 /* Add the first segment in order for non random data */
1049 svm_fifo_enqueue_nowait (f, generate[0].len, (u8 *) data_pattern);
1052 * Expected result: one big fat chunk at offset 1 if randomize == 1
1056 vlib_cli_output (vm, "fifo before missing link: %U",
1057 format_svm_fifo, f, 1 /* verbose */ );
1060 * Add the missing byte if segments were randomized
1064 u32 bytes_to_enq = 1;
1066 bytes_to_enq = total_size;
1067 rv = svm_fifo_enqueue_nowait (f, bytes_to_enq, data_pattern + 0);
1070 vlib_cli_output (vm, "in-order enqueue returned %d", rv);
1072 TCP_TEST ((rv == total_size), "enqueued %u expected %u", rv,
1077 TCP_TEST ((svm_fifo_has_ooo_data (f) == 0), "number of ooo segments %u",
1078 svm_fifo_number_ooo_segments (f));
1081 * Test if peeked data is the same as original data
1083 vec_validate (data_buf, vec_len (data_pattern));
1084 svm_fifo_peek (f, 0, vec_len (data_pattern), data_buf);
1085 if (compare_data (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1087 TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j],
1090 vec_reset_length (data_buf);
1093 * Dequeue or drop all data
1097 svm_fifo_dequeue_drop (f, vec_len (data_pattern));
1101 svm_fifo_dequeue_nowait (f, vec_len (data_pattern), data_buf);
1103 (data_buf, data_pattern, 0, vec_len (data_pattern), &j))
1105 TCP_TEST (0, "[%d] dequeued %u expected %u", j, data_buf[j],
1110 TCP_TEST ((svm_fifo_max_dequeue (f) == 0), "fifo has %d bytes",
1111 svm_fifo_max_dequeue (f));
1114 vec_free (data_pattern);
1115 vec_free (data_buf);
1121 tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input)
1124 u32 fifo_size = 6 << 10;
1125 u32 fifo_initial_offset = 1000000000;
1126 u32 test_n_bytes = 5000, j;
1127 u8 *test_data = 0, *data_buf = 0;
1128 int i, rv, verbose = 0;
1130 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1132 if (unformat (input, "verbose"))
1136 clib_error_t *e = clib_error_return
1137 (0, "unknown input `%U'", format_unformat_error, input);
1138 clib_error_report (e);
1144 * Create a fifo and add segments
1146 f = fifo_prepare (fifo_size);
1148 /* Set head and tail pointers */
1149 fifo_initial_offset = fifo_initial_offset % fifo_size;
1150 svm_fifo_init_pointers (f, fifo_initial_offset);
1152 vec_validate (test_data, test_n_bytes - 1);
1153 for (i = 0; i < vec_len (test_data); i++)
1156 for (i = test_n_bytes - 1; i > 0; i--)
1158 rv = svm_fifo_enqueue_with_offset (f, fifo_initial_offset + i - f->tail,
1159 sizeof (u8), &test_data[i]);
1161 vlib_cli_output (vm, "add [%d] [%d, %d]", i, i, i + sizeof (u8));
1164 clib_warning ("enqueue returned %d", rv);
1166 vec_free (test_data);
1171 svm_fifo_enqueue_nowait (f, sizeof (u8), &test_data[0]);
1173 vec_validate (data_buf, vec_len (test_data));
1175 svm_fifo_dequeue_nowait (f, vec_len (test_data), data_buf);
1176 rv = compare_data (data_buf, test_data, 0, vec_len (test_data), &j);
1178 vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
1180 TCP_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
1183 vec_free (test_data);
1188 tcp_test_fifo (vlib_main_t * vm, unformat_input_t * input)
1194 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
1196 res = tcp_test_fifo1 (vm, input);
1200 res = tcp_test_fifo2 (vm);
1205 * Run a number of fifo3 configs
1207 str = "nsegs 10 overlap seed 123";
1208 unformat_init_cstring (input, str);
1209 if (tcp_test_fifo3 (vm, input))
1211 unformat_free (input);
1213 str = "nsegs 10 overlap seed 123 in-seq-all";
1214 unformat_init_cstring (input, str);
1215 if (tcp_test_fifo3 (vm, input))
1217 unformat_free (input);
1219 str = "nsegs 10 overlap seed 123 initial-offset 3917";
1220 unformat_init_cstring (input, str);
1221 if (tcp_test_fifo3 (vm, input))
1223 unformat_free (input);
1225 str = "nsegs 10 overlap seed 123 initial-offset 3917 drop";
1226 unformat_init_cstring (input, str);
1227 if (tcp_test_fifo3 (vm, input))
1229 unformat_free (input);
1231 str = "nsegs 10 seed 123 initial-offset 3917 drop no-randomize";
1232 unformat_init_cstring (input, str);
1233 if (tcp_test_fifo3 (vm, input))
1235 unformat_free (input);
1239 if (unformat (input, "fifo3"))
1241 res = tcp_test_fifo3 (vm, input);
1243 else if (unformat (input, "fifo2"))
1245 res = tcp_test_fifo2 (vm);
1247 else if (unformat (input, "fifo1"))
1249 res = tcp_test_fifo1 (vm, input);
1251 else if (unformat (input, "fifo4"))
1253 res = tcp_test_fifo4 (vm, input);
1261 tcp_test_session (vlib_main_t * vm, unformat_input_t * input)
1264 tcp_connection_t *tc0;
1265 u8 sst = SESSION_TYPE_IP4_TCP;
1266 ip4_address_t local, remote;
1267 u16 local_port, remote_port;
1268 tcp_main_t *tm = vnet_get_tcp_main ();
1272 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1274 if (unformat (input, "del"))
1276 else if (unformat (input, "add"))
1284 local.as_u32 = clib_host_to_net_u32 (0x06000101);
1285 remote.as_u32 = clib_host_to_net_u32 (0x06000102);
1286 local_port = clib_host_to_net_u16 (1234);
1287 remote_port = clib_host_to_net_u16 (11234);
1289 pool_get (tm->connections[0], tc0);
1290 memset (tc0, 0, sizeof (*tc0));
1292 tc0->state = TCP_STATE_ESTABLISHED;
1294 tc0->c_c_index = tc0 - tm->connections[0];
1295 tc0->c_lcl_port = local_port;
1296 tc0->c_rmt_port = remote_port;
1298 tc0->c_thread_index = 0;
1299 tc0->c_lcl_ip4.as_u32 = local.as_u32;
1300 tc0->c_rmt_ip4.as_u32 = remote.as_u32;
1301 tc0->rcv_opts.mss = 1450;
1302 tcp_connection_init_vars (tc0);
1304 TCP_EVT_DBG (TCP_EVT_OPEN, tc0);
1306 if (stream_session_accept (&tc0->connection, 0 /* listener index */ ,
1307 sst, 0 /* notify */ ))
1308 clib_warning ("stream_session_accept failed");
1310 stream_session_accept_notify (&tc0->connection);
1314 tc0 = tcp_connection_get (0 /* connection index */ , 0 /* thread */ );
1315 tc0->state = TCP_STATE_CLOSED;
1316 stream_session_disconnect_notify (&tc0->connection);
1322 static clib_error_t *
1323 tcp_test (vlib_main_t * vm,
1324 unformat_input_t * input, vlib_cli_command_t * cmd_arg)
1328 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1330 if (unformat (input, "sack"))
1332 res = tcp_test_sack (vm, input);
1334 else if (unformat (input, "fifo"))
1336 res = tcp_test_fifo (vm, input);
1338 else if (unformat (input, "session"))
1340 res = tcp_test_session (vm, input);
1348 return clib_error_return (0, "TCP unit test failed");
1357 VLIB_CLI_COMMAND (tcp_test_command, static) =
1360 .short_help = "internal tcp unit tests",
1361 .function = tcp_test,
1367 * fd.io coding-style-patch-verification: ON
1370 * eval: (c-set-style "gnu")