diff options
Diffstat (limited to 'src/plugins/unittest/tcp_test.c')
| -rw-r--r-- | src/plugins/unittest/tcp_test.c | 1779 |
1 files changed, 1779 insertions, 0 deletions
diff --git a/src/plugins/unittest/tcp_test.c b/src/plugins/unittest/tcp_test.c new file mode 100644 index 00000000000..d26532d4596 --- /dev/null +++ b/src/plugins/unittest/tcp_test.c @@ -0,0 +1,1779 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <vnet/tcp/tcp.h> + +#define TCP_TEST_I(_cond, _comment, _args...) \ +({ \ + int _evald = (_cond); \ + if (!(_evald)) { \ + fformat(stderr, "FAIL:%d: " _comment "\n", \ + __LINE__, ##_args); \ + } else { \ + fformat(stderr, "PASS:%d: " _comment "\n", \ + __LINE__, ##_args); \ + } \ + _evald; \ +}) + +#define TCP_TEST(_cond, _comment, _args...) \ +{ \ + if (!TCP_TEST_I(_cond, _comment, ##_args)) { \ + return 1; \ + } \ +} + +/* *INDENT-OFF* */ +scoreboard_trace_elt_t sb_trace[] = {}; +/* *INDENT-ON* */ + +static int +tcp_test_scoreboard_replay (vlib_main_t * vm, unformat_input_t * input) +{ + int verbose = 0; + tcp_connection_t _tc, *tc = &_tc; + u8 *s = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "detail")) + verbose = 1; + else + { + clib_error_t *e = clib_error_return + (0, "unknown input `%U'", format_unformat_error, input); + clib_error_report (e); + return -1; + } + } + +#if TCP_SCOREBOARD_TRACE + tc->sack_sb.trace = sb_trace; +#endif + s = tcp_scoreboard_replay (s, tc, verbose); + vlib_cli_output (vm, "%v", s); + return 0; +} + +static int +tcp_test_sack_rx (vlib_main_t * vm, unformat_input_t * input) +{ + tcp_connection_t _tc, *tc = &_tc; + sack_scoreboard_t *sb = &tc->sack_sb; + sack_block_t *sacks = 0, block; + sack_scoreboard_hole_t *hole; + int i, verbose = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + else if (unformat (input, "replay")) + return tcp_test_scoreboard_replay (vm, input); + } + + memset (tc, 0, sizeof (*tc)); + + tc->snd_una = 0; + tc->snd_una_max = 1000; + tc->snd_nxt = 1000; + tc->rcv_opts.flags |= TCP_OPTS_FLAG_SACK; + scoreboard_init (&tc->sack_sb); + + for (i = 0; i < 1000 / 100; i++) + { + block.start = i * 100; + block.end = (i + 1) * 100; + vec_add1 (sacks, block); + } + + /* + * Inject even blocks + */ + + for (i = 0; i < 1000 / 200; i++) + { + vec_add1 (tc->rcv_opts.sacks, sacks[i * 2]); + } + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + tcp_rcv_sacks (tc, 0); + + if (verbose) + vlib_cli_output (vm, "sb after even blocks:\n%U", format_tcp_scoreboard, + sb); + + TCP_TEST ((pool_elts (sb->holes) == 5), + "scoreboard has %d elements", pool_elts (sb->holes)); + + /* First SACK block should be rejected */ + hole = scoreboard_first_hole (sb); + TCP_TEST ((hole->start == 0 && hole->end == 200), + "first hole start %u end %u", hole->start, hole->end); + hole = scoreboard_last_hole (sb); + TCP_TEST ((hole->start == 900 && hole->end == 1000), + "last hole start %u end %u", hole->start, hole->end); + TCP_TEST ((sb->sacked_bytes == 400), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv); + TCP_TEST ((sb->last_sacked_bytes == 400), + "last sacked bytes %d", sb->last_sacked_bytes); + TCP_TEST ((sb->high_sacked == 900), "max byte sacked %u", sb->high_sacked); + /* + * Inject odd blocks + */ + + vec_reset_length (tc->rcv_opts.sacks); + for (i = 0; i < 1000 / 200; i++) + { + vec_add1 (tc->rcv_opts.sacks, sacks[i * 2 + 1]); + } + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + tcp_rcv_sacks (tc, 0); + + if (verbose) + vlib_cli_output (vm, "sb after odd blocks:\n%U", format_tcp_scoreboard, + sb); + + hole = scoreboard_first_hole (sb); + TCP_TEST ((pool_elts (sb->holes) == 1), + "scoreboard has %d holes", pool_elts (sb->holes)); + TCP_TEST ((hole->start == 0 && hole->end == 100), + "first hole start %u end %u", hole->start, hole->end); + TCP_TEST ((sb->sacked_bytes == 900), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv); + TCP_TEST ((sb->high_sacked == 1000), "max sacked byte %u", sb->high_sacked); + TCP_TEST ((sb->last_sacked_bytes == 500), + "last sacked bytes %d", sb->last_sacked_bytes); + + /* + * Ack until byte 100, all bytes are now acked + sacked + */ + tcp_rcv_sacks (tc, 100); + if (verbose) + vlib_cli_output (vm, "ack until byte 100:\n%U", format_tcp_scoreboard, + sb); + + TCP_TEST ((pool_elts (sb->holes) == 0), + "scoreboard has %d elements", pool_elts (sb->holes)); + TCP_TEST ((sb->snd_una_adv == 900), + "snd_una_adv after ack %u", sb->snd_una_adv); + TCP_TEST ((sb->high_sacked == 1000), "max sacked byte %u", sb->high_sacked); + TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((sb->last_sacked_bytes == 0), + "last sacked bytes %d", sb->last_sacked_bytes); + + /* + * Add new block + */ + + vec_reset_length (tc->rcv_opts.sacks); + + block.start = 1200; + block.end = 1300; + vec_add1 (tc->rcv_opts.sacks, block); + + if (verbose) + vlib_cli_output (vm, "add [1200, 1300]:\n%U", format_tcp_scoreboard, sb); + tc->snd_una_max = 1500; + tc->snd_una = 1000; + tc->snd_nxt = 1500; + tcp_rcv_sacks (tc, 1000); + + if (verbose) + vlib_cli_output (vm, "sb snd_una_max 1500, snd_una 1000:\n%U", + format_tcp_scoreboard, sb); + + TCP_TEST ((sb->snd_una_adv == 0), + "snd_una_adv after ack %u", sb->snd_una_adv); + TCP_TEST ((pool_elts (sb->holes) == 2), + "scoreboard has %d holes", pool_elts (sb->holes)); + hole = scoreboard_first_hole (sb); + TCP_TEST ((hole->start == 1000 && hole->end == 1200), + "first hole start %u end %u", hole->start, hole->end); + TCP_TEST ((sb->snd_una_adv == 0), + "snd_una_adv after ack %u", sb->snd_una_adv); + TCP_TEST ((sb->high_sacked == 1300), "max sacked byte %u", sb->high_sacked); + hole = scoreboard_last_hole (sb); + TCP_TEST ((hole->start == 1300 && hole->end == 1500), + "last hole start %u end %u", hole->start, hole->end); + TCP_TEST ((sb->sacked_bytes == 100), "sacked bytes %d", sb->sacked_bytes); + + /* + * Ack first hole + */ + + vec_reset_length (tc->rcv_opts.sacks); + tcp_rcv_sacks (tc, 1200); + + if (verbose) + vlib_cli_output (vm, "sb ack up to byte 1200:\n%U", format_tcp_scoreboard, + sb); + + TCP_TEST ((sb->snd_una_adv == 100), + "snd_una_adv after ack %u", sb->snd_una_adv); + TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((pool_elts (sb->holes) == 1), + "scoreboard has %d elements", pool_elts (sb->holes)); + hole = scoreboard_first_hole (sb); + TCP_TEST ((hole->prev == TCP_INVALID_SACK_HOLE_INDEX + && hole->next == TCP_INVALID_SACK_HOLE_INDEX), "hole is valid"); + TCP_TEST ((sb->last_bytes_delivered == 100), "last bytes delivered %d", + sb->last_bytes_delivered); + + /* + * Add some more blocks and then remove all + */ + vec_reset_length (tc->rcv_opts.sacks); + tc->snd_una += sb->snd_una_adv; + tc->snd_una_max = 1900; + for (i = 0; i < 5; i++) + { + block.start = i * 100 + 1200; + block.end = (i + 1) * 100 + 1200; + vec_add1 (tc->rcv_opts.sacks, block); + } + tcp_rcv_sacks (tc, 1900); + + scoreboard_clear (sb); + if (verbose) + vlib_cli_output (vm, "sb cleared all:\n%U", format_tcp_scoreboard, sb); + + TCP_TEST ((pool_elts (sb->holes) == 0), + "number of holes %d", pool_elts (sb->holes)); + TCP_TEST ((sb->head == TCP_INVALID_SACK_HOLE_INDEX), "head %u", sb->head); + TCP_TEST ((sb->tail == TCP_INVALID_SACK_HOLE_INDEX), "tail %u", sb->tail); + + /* + * Re-inject odd blocks and ack them all + */ + + tc->snd_una = 0; + tc->snd_una_max = 1000; + tc->snd_nxt = 1000; + for (i = 0; i < 5; i++) + { + vec_add1 (tc->rcv_opts.sacks, sacks[i * 2 + 1]); + } + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + tcp_rcv_sacks (tc, 0); + if (verbose) + vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U", + format_tcp_scoreboard, sb); + + tcp_rcv_sacks (tc, 950); + + if (verbose) + vlib_cli_output (vm, "sb added odd blocks and ack [0, 950]:\n%U", + format_tcp_scoreboard, sb); + + TCP_TEST ((pool_elts (sb->holes) == 0), + "scoreboard has %d elements", pool_elts (sb->holes)); + TCP_TEST ((sb->snd_una_adv == 50), "snd_una_adv %u", sb->snd_una_adv); + TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((sb->last_sacked_bytes == 0), + "last sacked bytes %d", sb->last_sacked_bytes); + + /* + * Inject one block, ack it and overlap hole + */ + + tc->snd_una = 0; + tc->snd_una_max = 1000; + tc->snd_nxt = 1000; + + block.start = 100; + block.end = 500; + vec_add1 (tc->rcv_opts.sacks, block); + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + + tcp_rcv_sacks (tc, 0); + + if (verbose) + vlib_cli_output (vm, "sb added [100, 500]:\n%U", + format_tcp_scoreboard, sb); + + tcp_rcv_sacks (tc, 800); + + if (verbose) + vlib_cli_output (vm, "sb ack [0, 800]:\n%U", format_tcp_scoreboard, sb); + + TCP_TEST ((pool_elts (sb->holes) == 1), + "scoreboard has %d elements", pool_elts (sb->holes)); + TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv); + TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes); + TCP_TEST ((sb->last_sacked_bytes == 0), + "last sacked bytes %d", sb->last_sacked_bytes); + TCP_TEST ((sb->last_bytes_delivered == 400), + "last bytes delivered %d", sb->last_bytes_delivered); + + /* + * One hole close to head, patch head, split in two and start acking + * the lowest part + */ + scoreboard_clear (sb); + tc->snd_una = 0; + tc->snd_una_max = 1000; + tc->snd_nxt = 1000; + + block.start = 500; + block.end = 1000; + vec_add1 (tc->rcv_opts.sacks, block); + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + + tcp_rcv_sacks (tc, 0); + if (verbose) + vlib_cli_output (vm, "sb added [500, 1000]:\n%U", + format_tcp_scoreboard, sb); + + vec_reset_length (tc->rcv_opts.sacks); + block.start = 300; + block.end = 400; + vec_add1 (tc->rcv_opts.sacks, block); + tc->rcv_opts.n_sack_blocks = vec_len (tc->rcv_opts.sacks); + tcp_rcv_sacks (tc, 100); + if (verbose) + vlib_cli_output (vm, "sb added [0, 100] [300, 400]:\n%U", + format_tcp_scoreboard, sb); + TCP_TEST ((pool_elts (sb->holes) == 2), + "scoreboard has %d elements", pool_elts (sb->holes)); + + tc->snd_una = 100; + tcp_rcv_sacks (tc, 200); + tcp_rcv_sacks (tc, 300); + if (verbose) + vlib_cli_output (vm, "sb added [0, 300]:\n%U", format_tcp_scoreboard, sb); + TCP_TEST ((sb->sacked_bytes == 500), "sacked bytes %d", sb->sacked_bytes); + + return 0; +} + +static int +tcp_test_sack_tx (vlib_main_t * vm, unformat_input_t * input) +{ + tcp_connection_t _tc, *tc = &_tc; + sack_block_t *sacks; + int i, verbose = 0, expected; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + else + { + vlib_cli_output (vm, "parse error: '%U'", format_unformat_error, + input); + return -1; + } + } + + memset (tc, 0, sizeof (*tc)); + + /* + * Add odd sack block pairs + */ + for (i = 1; i < 10; i += 2) + { + tcp_update_sack_list (tc, i * 100, (i + 1) * 100); + } + + TCP_TEST ((vec_len (tc->snd_sacks) == 5), "sack blocks %d expected %d", + vec_len (tc->snd_sacks), 5); + TCP_TEST ((tc->snd_sacks[0].start = 900), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 900); + + /* + * Try to add one extra + */ + sacks = vec_dup (tc->snd_sacks); + + tcp_update_sack_list (tc, 1100, 1200); + if (verbose) + vlib_cli_output (vm, "add new segment [1100, 1200]\n%U", + format_tcp_sacks, tc); + expected = 5 < TCP_MAX_SACK_BLOCKS ? 6 : 5; + TCP_TEST ((vec_len (tc->snd_sacks) == expected), + "sack blocks %d expected %d", vec_len (tc->snd_sacks), expected); + TCP_TEST ((tc->snd_sacks[0].start == 1100), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 1100); + + /* restore */ + vec_free (tc->snd_sacks); + tc->snd_sacks = sacks; + + /* + * Overlap first 2 segment + */ + tc->rcv_nxt = 300; + tcp_update_sack_list (tc, 300, 300); + if (verbose) + vlib_cli_output (vm, "overlap first 2 segments:\n%U", + format_tcp_sacks, tc); + TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d", + vec_len (tc->snd_sacks), 3); + TCP_TEST ((tc->snd_sacks[0].start == 900), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 500); + + /* + * Add a new segment + */ + tcp_update_sack_list (tc, 1100, 1200); + if (verbose) + vlib_cli_output (vm, "add new segment [1100, 1200]\n%U", + format_tcp_sacks, tc); + TCP_TEST ((vec_len (tc->snd_sacks) == 4), "sack blocks %d expected %d", + vec_len (tc->snd_sacks), 4); + TCP_TEST ((tc->snd_sacks[0].start == 1100), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 1100); + + /* + * Join middle segments + */ + tcp_update_sack_list (tc, 800, 900); + if (verbose) + vlib_cli_output (vm, "join middle segments [800, 900]\n%U", + format_tcp_sacks, tc); + + TCP_TEST ((vec_len (tc->snd_sacks) == 3), "sack blocks %d expected %d", + vec_len (tc->snd_sacks), 3); + TCP_TEST ((tc->snd_sacks[0].start == 700), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 1100); + + /* + * Advance rcv_nxt to overlap all + */ + tc->rcv_nxt = 1200; + tcp_update_sack_list (tc, 1200, 1200); + if (verbose) + vlib_cli_output (vm, "advance rcv_nxt to 1200\n%U", format_tcp_sacks, tc); + TCP_TEST ((vec_len (tc->snd_sacks) == 0), "sack blocks %d expected %d", + vec_len (tc->snd_sacks), 0); + + + /* + * Add 2 blocks, overwrite first and update rcv_nxt to also remove it + */ + + vec_reset_length (tc->snd_sacks); + tc->rcv_nxt = 0; + + tcp_update_sack_list (tc, 100, 200); + tcp_update_sack_list (tc, 300, 400); + + if (verbose) + vlib_cli_output (vm, "add [100, 200] [300, 400]\n%U", + format_tcp_sacks, tc); + TCP_TEST ((vec_len (tc->snd_sacks) == 2), + "sack blocks %d expected %d", vec_len (tc->snd_sacks), 2); + TCP_TEST ((tc->snd_sacks[0].start == 300), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 300); + + tc->rcv_nxt = 100; + tcp_update_sack_list (tc, 100, 100); + if (verbose) + vlib_cli_output (vm, "add [100, 200] rcv_nxt = 100\n%U", + format_tcp_sacks, tc); + TCP_TEST ((vec_len (tc->snd_sacks) == 1), + "sack blocks %d expected %d", vec_len (tc->snd_sacks), 1); + TCP_TEST ((tc->snd_sacks[0].start == 300), + "first sack block start %u expected %u", tc->snd_sacks[0].start, + 300); + return 0; +} + +static int +tcp_test_sack (vlib_main_t * vm, unformat_input_t * input) +{ + int res = 0; + + /* Run all tests */ + if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT) + { + if (tcp_test_sack_tx (vm, input)) + { + return -1; + } + + if (tcp_test_sack_rx (vm, input)) + { + return -1; + } + } + else + { + if (unformat (input, "tx")) + { + res = tcp_test_sack_tx (vm, input); + } + else if (unformat (input, "rx")) + { + res = tcp_test_sack_rx (vm, input); + } + } + + return res; +} + + +typedef struct +{ + u32 offset; + u32 len; +} test_pattern_t; + +/* *INDENT-OFF* */ +test_pattern_t test_pattern[] = { + {380, 8}, {768, 8}, {1156, 8}, {1544, 8}, {1932, 8}, {2320, 8}, {2708, 8}, + {2992, 8}, {372, 8}, {760, 8}, {1148, 8}, {1536, 8}, {1924, 8}, {2312, 8}, + {2700, 8}, {2984, 8}, {364, 8}, {752, 8}, {1140, 8}, {1528, 8}, {1916, 8}, + {2304, 8}, {2692, 8}, {2976, 8}, {356, 8}, {744, 8}, {1132, 8}, {1520, 8}, + {1908, 8}, {2296, 8}, {2684, 8}, {2968, 8}, {348, 8}, {736, 8}, {1124, 8}, + {1512, 8}, {1900, 8}, {2288, 8}, {2676, 8}, {2960, 8}, {340, 8}, {728, 8}, + {1116, 8}, {1504, 8}, {1892, 8}, {2280, 8}, {2668, 8}, {2952, 8}, {332, 8}, + {720, 8}, {1108, 8}, {1496, 8}, {1884, 8}, {2272, 8}, {2660, 8}, {2944, 8}, + {324, 8}, {712, 8}, {1100, 8}, {1488, 8}, {1876, 8}, {2264, 8}, {2652, 8}, + {2936, 8}, {316, 8}, {704, 8}, {1092, 8}, {1480, 8}, {1868, 8}, {2256, 8}, + {2644, 8}, {2928, 8}, {308, 8}, {696, 8}, {1084, 8}, {1472, 8}, {1860, 8}, + {2248, 8}, {2636, 8}, {2920, 8}, {300, 8}, {688, 8}, {1076, 8}, {1464, 8}, + {1852, 8}, {2240, 8}, {2628, 8}, {2912, 8}, {292, 8}, {680, 8}, {1068, 8}, + {1456, 8}, {1844, 8}, {2232, 8}, {2620, 8}, {2904, 8}, {284, 8}, {672, 8}, + {1060, 8}, {1448, 8}, {1836, 8}, {2224, 8}, {2612, 8}, {2896, 8}, {276, 8}, + {664, 8}, {1052, 8}, {1440, 8}, {1828, 8}, {2216, 8}, {2604, 8}, {2888, 8}, + {268, 8}, {656, 8}, {1044, 8}, {1432, 8}, {1820, 8}, {2208, 8}, {2596, 8}, + {2880, 8}, {260, 8}, {648, 8}, {1036, 8}, {1424, 8}, {1812, 8}, {2200, 8}, + {2588, 8}, {2872, 8}, {252, 8}, {640, 8}, {1028, 8}, {1416, 8}, {1804, 8}, + {2192, 8}, {2580, 8}, {2864, 8}, {244, 8}, {632, 8}, {1020, 8}, {1408, 8}, + {1796, 8}, {2184, 8}, {2572, 8}, {2856, 8}, {236, 8}, {624, 8}, {1012, 8}, + {1400, 8}, {1788, 8}, {2176, 8}, {2564, 8}, {2848, 8}, {228, 8}, {616, 8}, + {1004, 8}, {1392, 8}, {1780, 8}, {2168, 8}, {2556, 8}, {2840, 8}, {220, 8}, + {608, 8}, {996, 8}, {1384, 8}, {1772, 8}, {2160, 8}, {2548, 8}, {2832, 8}, + {212, 8}, {600, 8}, {988, 8}, {1376, 8}, {1764, 8}, {2152, 8}, {2540, 8}, + {2824, 8}, {204, 8}, {592, 8}, {980, 8}, {1368, 8}, {1756, 8}, {2144, 8}, + {2532, 8}, {2816, 8}, {196, 8}, {584, 8}, {972, 8}, {1360, 8}, {1748, 8}, + {2136, 8}, {2524, 8}, {2808, 8}, {188, 8}, {576, 8}, {964, 8}, {1352, 8}, + {1740, 8}, {2128, 8}, {2516, 8}, {2800, 8}, {180, 8}, {568, 8}, {956, 8}, + {1344, 8}, {1732, 8}, {2120, 8}, {2508, 8}, {2792, 8}, {172, 8}, {560, 8}, + {948, 8}, {1336, 8}, {1724, 8}, {2112, 8}, {2500, 8}, {2784, 8}, {164, 8}, + {552, 8}, {940, 8}, {1328, 8}, {1716, 8}, {2104, 8}, {2492, 8}, {2776, 8}, + {156, 8}, {544, 8}, {932, 8}, {1320, 8}, {1708, 8}, {2096, 8}, {2484, 8}, + {2768, 8}, {148, 8}, {536, 8}, {924, 8}, {1312, 8}, {1700, 8}, {2088, 8}, + {2476, 8}, {2760, 8}, {140, 8}, {528, 8}, {916, 8}, {1304, 8}, {1692, 8}, + {2080, 8}, {2468, 8}, {2752, 8}, {132, 8}, {520, 8}, {908, 8}, {1296, 8}, + {1684, 8}, {2072, 8}, {2460, 8}, {2744, 8}, {124, 8}, {512, 8}, {900, 8}, + {1288, 8}, {1676, 8}, {2064, 8}, {2452, 8}, {2736, 8}, {116, 8}, {504, 8}, + {892, 8}, {1280, 8}, {1668, 8}, {2056, 8}, {2444, 8}, {2728, 8}, {108, 8}, + {496, 8}, {884, 8}, {1272, 8}, {1660, 8}, {2048, 8}, {2436, 8}, {2720, 8}, + {100, 8}, {488, 8}, {876, 8}, {1264, 8}, {1652, 8}, {2040, 8}, {2428, 8}, + {2716, 4}, {92, 8}, {480, 8}, {868, 8}, {1256, 8}, {1644, 8}, {2032, 8}, + {2420, 8}, {84, 8}, {472, 8}, {860, 8}, {1248, 8}, {1636, 8}, {2024, 8}, + {2412, 8}, {76, 8}, {464, 8}, {852, 8}, {1240, 8}, {1628, 8}, {2016, 8}, + {2404, 8}, {68, 8}, {456, 8}, {844, 8}, {1232, 8}, {1620, 8}, {2008, 8}, + {2396, 8}, {60, 8}, {448, 8}, {836, 8}, {1224, 8}, {1612, 8}, {2000, 8}, + {2388, 8}, {52, 8}, {440, 8}, {828, 8}, {1216, 8}, {1604, 8}, {1992, 8}, + {2380, 8}, {44, 8}, {432, 8}, {820, 8}, {1208, 8}, {1596, 8}, {1984, 8}, + {2372, 8}, {36, 8}, {424, 8}, {812, 8}, {1200, 8}, {1588, 8}, {1976, 8}, + {2364, 8}, {28, 8}, {416, 8}, {804, 8}, {1192, 8}, {1580, 8}, {1968, 8}, + {2356, 8}, {20, 8}, {408, 8}, {796, 8}, {1184, 8}, {1572, 8}, {1960, 8}, + {2348, 8}, {12, 8}, {400, 8}, {788, 8}, {1176, 8}, {1564, 8}, {1952, 8}, + {2340, 8}, {4, 8}, {392, 8}, {780, 8}, {1168, 8}, {1556, 8}, {1944, 8}, + {2332, 8}, + /* missing from original data set */ + {388, 4}, {776, 4}, {1164, 4}, {1552, 4}, {1940, 4}, {2328, 4}, +}; +/* *INDENT-ON* */ + +int +pattern_cmp (const void *arg1, const void *arg2) +{ + test_pattern_t *a1 = (test_pattern_t *) arg1; + test_pattern_t *a2 = (test_pattern_t *) arg2; + + if (a1->offset < a2->offset) + return -1; + else if (a1->offset > a2->offset) + return 1; + return 0; +} + +static u8 +fifo_validate_pattern (vlib_main_t * vm, test_pattern_t * pattern, + u32 pattern_length) +{ + test_pattern_t *tp = pattern; + int i; + + /* Go through the pattern and make 100% sure it's sane */ + for (i = 0; i < pattern_length - 1; i++) + { + if (tp->offset + tp->len != (tp + 1)->offset) + { + vlib_cli_output (vm, "[%d] missing {%d, %d}", i, + (tp->offset + tp->len), + (tp + 1)->offset - (tp->offset + tp->len)); + return 0; + } + tp++; + } + return 1; +} + +static test_pattern_t * +fifo_get_validate_pattern (vlib_main_t * vm, test_pattern_t * test_data, + u32 test_data_len) +{ + test_pattern_t *validate_pattern = 0; + + /* Validate, and try segments in order... */ + vec_validate (validate_pattern, test_data_len - 1); + memcpy (validate_pattern, test_data, + test_data_len * sizeof (test_pattern_t)); + qsort ((u8 *) validate_pattern, test_data_len, sizeof (test_pattern_t), + pattern_cmp); + + if (fifo_validate_pattern (vm, validate_pattern, test_data_len) == 0) + return 0; + + return validate_pattern; +} + +static svm_fifo_t * +fifo_prepare (u32 fifo_size) +{ + svm_fifo_t *f; + f = svm_fifo_create (fifo_size); + + /* Paint fifo data vector with -1's */ + memset (f->data, 0xFF, fifo_size); + + return f; +} + +static int +compare_data (u8 * data1, u8 * data2, u32 start, u32 len, u32 * index) +{ + int i; + + for (i = start; i < len; i++) + { + if (data1[i] != data2[i]) + { + *index = i; + return 1; + } + } + return 0; +} + +int +tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input) +{ + svm_fifo_t *f; + u32 fifo_size = 1 << 20; + u32 *test_data = 0; + u32 offset; + int i, rv, verbose = 0; + u32 data_word, test_data_len, j; + ooo_segment_t *ooo_seg; + u8 *data, *s, *data_buf = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + } + + test_data_len = fifo_size / sizeof (u32); + vec_validate (test_data, test_data_len - 1); + + for (i = 0; i < vec_len (test_data); i++) + test_data[i] = i; + + f = fifo_prepare (fifo_size); + + /* + * Enqueue an initial (un-dequeued) chunk + */ + rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) test_data); + TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv); + TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail); + + /* + * Create 3 chunks in the future. The offsets are relative + * to the current fifo tail + */ + for (i = 0; i < 3; i++) + { + offset = (2 * i + 1) * sizeof (u32) - f->tail; + data = (u8 *) (test_data + (2 * i + 1)); + if (i == 0) + { + rv = svm_fifo_enqueue_nowait (f, sizeof (u32), data); + rv = rv > 0 ? 0 : rv; + } + else + rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data); + if (verbose) + vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset, + offset + sizeof (u32)); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + goto err; + } + } + + if (verbose) + vlib_cli_output (vm, "fifo after odd segs: %U", format_svm_fifo, f, 1); + + TCP_TEST ((f->tail == 8), "fifo tail %u", f->tail); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + /* + * Try adding a completely overlapped segment + */ + offset = 3 * sizeof (u32) - f->tail; + data = (u8 *) (test_data + 3); + rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + goto err; + } + + if (verbose) + vlib_cli_output (vm, "fifo after overlap seg: %U", format_svm_fifo, f, 1); + + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + /* + * Make sure format functions are not buggy + */ + s = format (0, "%U", format_svm_fifo, f, 2); + vec_free (s); + + /* + * Paint some of missing data backwards + */ + for (i = 3; i > 1; i--) + { + offset = (2 * i + 0) * sizeof (u32) - f->tail; + data = (u8 *) (test_data + (2 * i + 0)); + rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data); + if (verbose) + vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset, + offset + sizeof (u32)); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + goto err; + } + } + + if (verbose) + vlib_cli_output (vm, "fifo before missing link: %U", format_svm_fifo, f, + 1); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == 12), + "first ooo seg position %u", ooo_seg->start); + TCP_TEST ((ooo_seg->length == 16), + "first ooo seg length %u", ooo_seg->length); + + /* + * Enqueue the missing u32 + */ + rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) (test_data + 2)); + if (verbose) + vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f, + 1); + TCP_TEST ((rv == 20), "bytes to be enqueued %u", rv); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + /* + * Collect results + */ + for (i = 0; i < 7; i++) + { + rv = svm_fifo_dequeue_nowait (f, sizeof (u32), (u8 *) & data_word); + if (rv != sizeof (u32)) + { + clib_warning ("bytes dequeues %u", rv); + goto err; + } + if (data_word != test_data[i]) + { + clib_warning ("recovered [%d] %d not %d", i, data_word, + test_data[i]); + goto err; + } + } + + /* + * Test segment overlaps: last ooo segment overlaps all + */ + svm_fifo_free (f); + f = fifo_prepare (fifo_size); + + for (i = 0; i < 4; i++) + { + offset = (2 * i + 1) * sizeof (u32) - f->tail; + data = (u8 *) (test_data + (2 * i + 1)); + rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data); + if (verbose) + vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset, + offset + sizeof (u32)); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + goto err; + } + } + + rv = svm_fifo_enqueue_with_offset (f, 8 - f->tail, 21, data); + TCP_TEST ((rv == 0), "ooo enqueued %u", rv); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + vec_validate (data_buf, vec_len (data)); + svm_fifo_peek (f, 0, vec_len (data), data_buf); + if (compare_data (data_buf, data, 8, vec_len (data), &j)) + { + TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]); + } + vec_reset_length (data_buf); + + /* + * Test segment overlaps: enqueue and overlap ooo segments + */ + svm_fifo_free (f); + f = fifo_prepare (fifo_size); + + for (i = 0; i < 4; i++) + { + offset = (2 * i + 1) * sizeof (u32) - f->tail; + data = (u8 *) (test_data + (2 * i + 1)); + rv = svm_fifo_enqueue_with_offset (f, offset, sizeof (u32), data); + if (verbose) + vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset, + offset + sizeof (u32)); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + goto err; + } + } + + if (verbose) + vlib_cli_output (vm, "fifo after enqueue: %U", format_svm_fifo, f, 1); + + rv = svm_fifo_enqueue_nowait (f, 29, data); + if (verbose) + vlib_cli_output (vm, "fifo after enqueueing 29: %U", format_svm_fifo, f, + 1); + TCP_TEST ((rv == 32), "ooo enqueued %u", rv); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + vec_validate (data_buf, vec_len (data)); + svm_fifo_peek (f, 0, vec_len (data), data_buf); + if (compare_data (data_buf, data, 0, vec_len (data), &j)) + { + TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], data[j]); + } + + /* Try to peek beyond the data */ + rv = svm_fifo_peek (f, svm_fifo_max_dequeue (f), vec_len (data), data_buf); + TCP_TEST ((rv == 0), "peeked %u expected 0", rv); + + vec_free (data_buf); + svm_fifo_free (f); + vec_free (test_data); + + return 0; + +err: + svm_fifo_free (f); + vec_free (test_data); + return -1; +} + +static int +tcp_test_fifo2 (vlib_main_t * vm) +{ + svm_fifo_t *f; + u32 fifo_size = 1 << 20; + int i, rv, test_data_len; + u64 data64; + test_pattern_t *tp, *vp, *test_data; + ooo_segment_t *ooo_seg; + + test_data = test_pattern; + test_data_len = ARRAY_LEN (test_pattern); + + vp = fifo_get_validate_pattern (vm, test_data, test_data_len); + + /* Create a fifo */ + f = fifo_prepare (fifo_size); + + /* + * Try with sorted data + */ + for (i = 0; i < test_data_len; i++) + { + tp = vp + i; + data64 = tp->offset; + svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len, + (u8 *) & data64); + } + + /* Expected result: one big fat chunk at offset 4 */ + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == 4), + "first ooo seg position %u", ooo_seg->start); + TCP_TEST ((ooo_seg->length == 2996), + "first ooo seg length %u", ooo_seg->length); + + data64 = 0; + rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64); + TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv); + + svm_fifo_free (f); + vec_free (vp); + + /* + * Now try it again w/ unsorted data... + */ + + f = fifo_prepare (fifo_size); + + for (i = 0; i < test_data_len; i++) + { + tp = &test_data[i]; + data64 = tp->offset; + rv = svm_fifo_enqueue_with_offset (f, tp->offset - f->tail, tp->len, + (u8 *) & data64); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + } + } + + /* Expecting the same result: one big fat chunk at offset 4 */ + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == 4), + "first ooo seg position %u", ooo_seg->start); + TCP_TEST ((ooo_seg->length == 2996), + "first ooo seg length %u", ooo_seg->length); + + data64 = 0; + rv = svm_fifo_enqueue_nowait (f, sizeof (u32), (u8 *) & data64); + + TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv); + + svm_fifo_free (f); + + return 0; +} + +static int +tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input) +{ + svm_fifo_t *f; + u32 fifo_size = 4 << 10; + u32 fifo_initial_offset = 0; + u32 total_size = 2 << 10; + int overlap = 0, verbose = 0, randomize = 1, drop = 0, in_seq_all = 0; + u8 *data_pattern = 0, *data_buf = 0; + test_pattern_t *tp, *generate = 0; + u32 nsegs = 2, seg_size, length_so_far; + u32 current_offset, offset_increment, len_this_chunk; + u32 seed = 0xdeaddabe, j; + int i, rv; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "fifo-size %d", &fifo_size)) + ; + else if (unformat (input, "total-size %d", &total_size)) + ; + else if (unformat (input, "verbose")) + verbose = 1; + else if (unformat (input, "overlap")) + overlap = 1; + else if (unformat (input, "initial-offset %d", &fifo_initial_offset)) + ; + else if (unformat (input, "seed %d", &seed)) + ; + else if (unformat (input, "nsegs %d", &nsegs)) + ; + else if (unformat (input, "no-randomize")) + randomize = 0; + else if (unformat (input, "in-seq-all")) + in_seq_all = 1; + else if (unformat (input, "drop")) + drop = 1; + else + { + clib_error_t *e = clib_error_return + (0, "unknown input `%U'", format_unformat_error, input); + clib_error_report (e); + return -1; + } + } + + if (total_size > fifo_size) + { + clib_warning ("total_size %d greater than fifo size %d", total_size, + fifo_size); + return -1; + } + if (overlap && randomize == 0) + { + clib_warning ("Can't enqueue in-order with overlap"); + return -1; + } + + /* + * Generate data + */ + vec_validate (data_pattern, total_size - 1); + for (i = 0; i < vec_len (data_pattern); i++) + data_pattern[i] = i & 0xff; + + /* + * Generate segments + */ + seg_size = total_size / nsegs; + length_so_far = 0; + current_offset = randomize; + while (length_so_far < total_size) + { + vec_add2 (generate, tp, 1); + len_this_chunk = clib_min (seg_size, total_size - length_so_far); + tp->offset = current_offset; + tp->len = len_this_chunk; + + if (overlap && (len_this_chunk == seg_size)) + do + { + offset_increment = len_this_chunk + % (1 + (random_u32 (&seed) % len_this_chunk)); + } + while (offset_increment == 0); + else + offset_increment = len_this_chunk; + + current_offset += offset_increment; + length_so_far = tp->offset + tp->len; + } + + /* + * Validate segment list. Only valid for non-overlap cases. + */ + if (overlap == 0) + fifo_validate_pattern (vm, generate, vec_len (generate)); + + if (verbose) + { + vlib_cli_output (vm, "raw data pattern:"); + for (i = 0; i < vec_len (generate); i++) + { + vlib_cli_output (vm, "[%d] offset %u len %u", i, + generate[i].offset, generate[i].len); + } + } + + /* Randomize data pattern */ + if (randomize) + { + for (i = 0; i < vec_len (generate) / 2; i++) + { + u32 src_index, dst_index; + test_pattern_t _tmp, *tmp = &_tmp; + + src_index = random_u32 (&seed) % vec_len (generate); + dst_index = random_u32 (&seed) % vec_len (generate); + + tmp[0] = generate[dst_index]; + generate[dst_index] = generate[src_index]; + generate[src_index] = tmp[0]; + } + if (verbose) + { + vlib_cli_output (vm, "randomized data pattern:"); + for (i = 0; i < vec_len (generate); i++) + { + vlib_cli_output (vm, "[%d] offset %u len %u", i, + generate[i].offset, generate[i].len); + } + } + } + + /* + * Create a fifo and add segments + */ + f = fifo_prepare (fifo_size); + + /* manually set head and tail pointers to validate modular arithmetic */ + fifo_initial_offset = fifo_initial_offset % fifo_size; + f->head = fifo_initial_offset; + f->tail = fifo_initial_offset; + + for (i = !randomize; i < vec_len (generate); i++) + { + tp = generate + i; + svm_fifo_enqueue_with_offset (f, + fifo_initial_offset + tp->offset - + f->tail, tp->len, + (u8 *) data_pattern + tp->offset); + } + + /* Add the first segment in order for non random data */ + if (!randomize) + svm_fifo_enqueue_nowait (f, generate[0].len, (u8 *) data_pattern); + + /* + * Expected result: one big fat chunk at offset 1 if randomize == 1 + */ + + if (verbose) + vlib_cli_output (vm, "fifo before missing link: %U", + format_svm_fifo, f, 1 /* verbose */ ); + + /* + * Add the missing byte if segments were randomized + */ + if (randomize) + { + u32 bytes_to_enq = 1; + if (in_seq_all) + bytes_to_enq = total_size; + rv = svm_fifo_enqueue_nowait (f, bytes_to_enq, data_pattern + 0); + + if (verbose) + vlib_cli_output (vm, "in-order enqueue returned %d", rv); + + TCP_TEST ((rv == total_size), "enqueued %u expected %u", rv, + total_size); + + } + + TCP_TEST ((svm_fifo_has_ooo_data (f) == 0), "number of ooo segments %u", + svm_fifo_number_ooo_segments (f)); + + /* + * Test if peeked data is the same as original data + */ + vec_validate (data_buf, vec_len (data_pattern)); + svm_fifo_peek (f, 0, vec_len (data_pattern), data_buf); + if (compare_data (data_buf, data_pattern, 0, vec_len (data_pattern), &j)) + { + TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], + data_pattern[j]); + } + vec_reset_length (data_buf); + + /* + * Dequeue or drop all data + */ + if (drop) + { + svm_fifo_dequeue_drop (f, vec_len (data_pattern)); + } + else + { + svm_fifo_dequeue_nowait (f, vec_len (data_pattern), data_buf); + if (compare_data + (data_buf, data_pattern, 0, vec_len (data_pattern), &j)) + { + TCP_TEST (0, "[%d] dequeued %u expected %u", j, data_buf[j], + data_pattern[j]); + } + } + + TCP_TEST ((svm_fifo_max_dequeue (f) == 0), "fifo has %d bytes", + svm_fifo_max_dequeue (f)); + + svm_fifo_free (f); + vec_free (data_pattern); + vec_free (data_buf); + + return 0; +} + +static int +tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input) +{ + svm_fifo_t *f; + u32 fifo_size = 6 << 10; + u32 fifo_initial_offset = 1000000000; + u32 test_n_bytes = 5000, j; + u8 *test_data = 0, *data_buf = 0; + int i, rv, verbose = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + else + { + clib_error_t *e = clib_error_return + (0, "unknown input `%U'", format_unformat_error, input); + clib_error_report (e); + return -1; + } + } + + /* + * Create a fifo and add segments + */ + f = fifo_prepare (fifo_size); + + /* Set head and tail pointers */ + fifo_initial_offset = fifo_initial_offset % fifo_size; + svm_fifo_init_pointers (f, fifo_initial_offset); + + vec_validate (test_data, test_n_bytes - 1); + for (i = 0; i < vec_len (test_data); i++) + test_data[i] = i; + + for (i = test_n_bytes - 1; i > 0; i--) + { + rv = svm_fifo_enqueue_with_offset (f, fifo_initial_offset + i - f->tail, + sizeof (u8), &test_data[i]); + if (verbose) + vlib_cli_output (vm, "add [%d] [%d, %d]", i, i, i + sizeof (u8)); + if (rv) + { + clib_warning ("enqueue returned %d", rv); + svm_fifo_free (f); + vec_free (test_data); + return -1; + } + } + + svm_fifo_enqueue_nowait (f, sizeof (u8), &test_data[0]); + + vec_validate (data_buf, vec_len (test_data)); + + svm_fifo_dequeue_nowait (f, vec_len (test_data), data_buf); + rv = compare_data (data_buf, test_data, 0, vec_len (test_data), &j); + if (rv) + vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j], + test_data[j]); + TCP_TEST ((rv == 0), "dequeued compared to original returned %d", rv); + + svm_fifo_free (f); + vec_free (test_data); + return 0; +} + +static u32 +fifo_pos (svm_fifo_t * f, u32 pos) +{ + return pos % f->nitems; +} + +static int +tcp_test_fifo5 (vlib_main_t * vm, unformat_input_t * input) +{ + svm_fifo_t *f; + u32 fifo_size = 400, j = 0, offset = 200; + int i, rv, verbose = 0; + u8 *test_data = 0, *data_buf = 0; + ooo_segment_t *ooo_seg; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + else + { + clib_error_t *e = clib_error_return + (0, "unknown input `%U'", format_unformat_error, input); + clib_error_report (e); + return -1; + } + } + + f = fifo_prepare (fifo_size); + svm_fifo_init_pointers (f, offset); + + vec_validate (test_data, 399); + for (i = 0; i < vec_len (test_data); i++) + test_data[i] = i % 0xff; + + /* + * Start with [100, 200] and [300, 400] + */ + svm_fifo_enqueue_with_offset (f, 100, 100, &test_data[100]); + svm_fifo_enqueue_with_offset (f, 300, 100, &test_data[300]); + + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 2), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + TCP_TEST ((f->ooos_newest == 1), "newest %u", f->ooos_newest); + if (verbose) + vlib_cli_output (vm, "fifo after [100, 200] and [300, 400] : %U", + format_svm_fifo, f, 2 /* verbose */ ); + + /* + * Add [225, 275] + */ + + rv = svm_fifo_enqueue_with_offset (f, 225, 50, &test_data[200]); + if (verbose) + vlib_cli_output (vm, "fifo after [225, 275] : %U", + format_svm_fifo, f, 2 /* verbose */ ); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 3), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == fifo_pos (f, 100 + offset)), + "first seg start %u expected %u", ooo_seg->start, + fifo_pos (f, 100 + offset)); + TCP_TEST ((ooo_seg->length == 100), "first seg length %u expected %u", + ooo_seg->length, 100); + ooo_seg = ooo_segment_next (f, ooo_seg); + TCP_TEST ((ooo_seg->start == fifo_pos (f, 225 + offset)), + "second seg start %u expected %u", + ooo_seg->start, fifo_pos (f, 225 + offset)); + TCP_TEST ((ooo_seg->length == 50), "second seg length %u expected %u", + ooo_seg->length, 50); + ooo_seg = ooo_segment_next (f, ooo_seg); + TCP_TEST ((ooo_seg->start == fifo_pos (f, 300 + offset)), + "third seg start %u expected %u", + ooo_seg->start, fifo_pos (f, 300 + offset)); + TCP_TEST ((ooo_seg->length == 100), "third seg length %u expected %u", + ooo_seg->length, 100); + TCP_TEST ((f->ooos_newest == 2), "newest %u", f->ooos_newest); + /* + * Add [190, 310] + */ + rv = svm_fifo_enqueue_with_offset (f, 190, 120, &test_data[190]); + if (verbose) + vlib_cli_output (vm, "fifo after [190, 310] : %U", + format_svm_fifo, f, 1 /* verbose */ ); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == fifo_pos (f, offset + 100)), + "first seg start %u expected %u", + ooo_seg->start, fifo_pos (f, offset + 100)); + TCP_TEST ((ooo_seg->length == 300), "first seg length %u expected %u", + ooo_seg->length, 300); + + /* + * Add [0, 150] + */ + rv = svm_fifo_enqueue_nowait (f, 150, test_data); + + if (verbose) + vlib_cli_output (vm, "fifo after [0 150] : %U", format_svm_fifo, f, + 2 /* verbose */ ); + + TCP_TEST ((rv == 400), "managed to enqueue %u expected %u", rv, 400); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + + vec_validate (data_buf, 399); + svm_fifo_peek (f, 0, 400, data_buf); + if (compare_data (data_buf, test_data, 0, 400, &j)) + { + TCP_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j], + test_data[j]); + } + + /* + * Add [100 200] and overlap it with [50 250] + */ + svm_fifo_free (f); + f = fifo_prepare (fifo_size); + + svm_fifo_enqueue_with_offset (f, 100, 100, &test_data[100]); + svm_fifo_enqueue_with_offset (f, 50, 200, &test_data[50]); + TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1), + "number of ooo segments %u", svm_fifo_number_ooo_segments (f)); + ooo_seg = svm_fifo_first_ooo_segment (f); + TCP_TEST ((ooo_seg->start == 50), "first seg start %u expected %u", + ooo_seg->start, 50); + TCP_TEST ((ooo_seg->length == 200), "first seg length %u expected %u", + ooo_seg->length, 200); + + svm_fifo_free (f); + vec_free (test_data); + return 0; +} + +/* *INDENT-OFF* */ +svm_fifo_trace_elem_t fifo_trace[] = {}; +/* *INDENT-ON* */ + +static int +tcp_test_fifo_replay (vlib_main_t * vm, unformat_input_t * input) +{ + svm_fifo_t f; + int verbose = 0; + u8 no_read = 0, *str = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "verbose")) + verbose = 1; + else if (unformat (input, "no-read")) + no_read = 1; + else + { + clib_error_t *e = clib_error_return + (0, "unknown input `%U'", format_unformat_error, input); + clib_error_report (e); + return -1; + } + } + +#if SVMF_FIFO_TRACE + f.trace = fifo_trace; +#endif + + str = svm_fifo_replay (str, &f, no_read, verbose); + vlib_cli_output (vm, "%v", str); + return 0; +} + +static int +tcp_test_fifo (vlib_main_t * vm, unformat_input_t * input) +{ + int res = 0; + char *str; + + /* Run all tests */ + if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT) + { + res = tcp_test_fifo1 (vm, input); + if (res) + return res; + + res = tcp_test_fifo2 (vm); + if (res) + return res; + + /* + * Run a number of fifo3 configs + */ + str = "nsegs 10 overlap seed 123"; + unformat_init_cstring (input, str); + if (tcp_test_fifo3 (vm, input)) + return -1; + unformat_free (input); + + str = "nsegs 10 overlap seed 123 in-seq-all"; + unformat_init_cstring (input, str); + if (tcp_test_fifo3 (vm, input)) + return -1; + unformat_free (input); + + str = "nsegs 10 overlap seed 123 initial-offset 3917"; + unformat_init_cstring (input, str); + if (tcp_test_fifo3 (vm, input)) + return -1; + unformat_free (input); + + str = "nsegs 10 overlap seed 123 initial-offset 3917 drop"; + unformat_init_cstring (input, str); + if (tcp_test_fifo3 (vm, input)) + return -1; + unformat_free (input); + + str = "nsegs 10 seed 123 initial-offset 3917 drop no-randomize"; + unformat_init_cstring (input, str); + if (tcp_test_fifo3 (vm, input)) + return -1; + unformat_free (input); + + res = tcp_test_fifo4 (vm, input); + if (res) + return res; + + res = tcp_test_fifo5 (vm, input); + if (res) + return res; + } + else + { + if (unformat (input, "fifo3")) + { + res = tcp_test_fifo3 (vm, input); + } + else if (unformat (input, "fifo2")) + { + res = tcp_test_fifo2 (vm); + } + else if (unformat (input, "fifo1")) + { + res = tcp_test_fifo1 (vm, input); + } + else if (unformat (input, "fifo4")) + { + res = tcp_test_fifo4 (vm, input); + } + else if (unformat (input, "fifo5")) + { + res = tcp_test_fifo5 (vm, input); + } + else if (unformat (input, "replay")) + { + res = tcp_test_fifo_replay (vm, input); + } + } + + return res; +} + +static int +tcp_test_lookup (vlib_main_t * vm, unformat_input_t * input) +{ + session_manager_main_t *smm = &session_manager_main; + tcp_main_t *tm = &tcp_main; + transport_connection_t _tc1, *tc1 = &_tc1, _tc2, *tc2 = &_tc2, *tconn; + tcp_connection_t *tc; + stream_session_t *s, *s1; + u8 cmp = 0, is_filtered = 0; + + /* + * Allocate fake session and connection 1 + */ + pool_get (smm->sessions[0], s); + memset (s, 0, sizeof (*s)); + s->session_index = s - smm->sessions[0]; + + pool_get (tm->connections[0], tc); + memset (tc, 0, sizeof (*tc)); + tc->connection.c_index = tc - tm->connections[0]; + tc->connection.s_index = s->session_index; + s->connection_index = tc->connection.c_index; + + tc->connection.lcl_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000101); + tc->connection.rmt_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000103); + tc->connection.lcl_port = 35051; + tc->connection.rmt_port = 53764; + tc->connection.proto = TRANSPORT_PROTO_TCP; + tc->connection.is_ip4 = 1; + clib_memcpy (tc1, &tc->connection, sizeof (*tc1)); + s1 = s; + + /* + * Allocate fake session and connection 2 + */ + pool_get (session_manager_main.sessions[0], s); + memset (s, 0, sizeof (*s)); + s->session_index = s - smm->sessions[0]; + + pool_get (tm->connections[0], tc); + memset (tc, 0, sizeof (*tc)); + tc->connection.c_index = tc - tm->connections[0]; + tc->connection.s_index = s->session_index; + s->connection_index = tc->connection.c_index; + + tc->connection.lcl_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000101); + tc->connection.rmt_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000102); + tc->connection.lcl_port = 38225; + tc->connection.rmt_port = 53764; + tc->connection.proto = TRANSPORT_PROTO_TCP; + tc->connection.is_ip4 = 1; + clib_memcpy (tc2, &tc->connection, sizeof (*tc2)); + + /* + * Confirm that connection lookup works + */ + + session_lookup_add_connection (tc1, session_handle (s1)); + tconn = session_lookup_connection_wt4 (0, &tc1->lcl_ip.ip4, + &tc1->rmt_ip.ip4, + tc1->lcl_port, tc1->rmt_port, + tc1->proto, 0, &is_filtered); + + TCP_TEST ((tconn != 0), "connection exists"); + cmp = (memcmp (&tconn->rmt_ip, &tc1->rmt_ip, sizeof (tc1->rmt_ip)) == 0); + TCP_TEST ((cmp), "rmt ip is identical %d", cmp); + TCP_TEST ((tconn->lcl_port == tc1->lcl_port), + "rmt port is identical %d", tconn->lcl_port == tc1->lcl_port); + + /* + * Non-existing connection lookup should not work + */ + + tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4, + &tc2->rmt_ip.ip4, + tc2->lcl_port, tc2->rmt_port, + tc2->proto, 0, &is_filtered); + TCP_TEST ((tconn == 0), "lookup result should be null"); + + /* + * Delete and lookup again + */ + session_lookup_del_connection (tc1); + tconn = session_lookup_connection_wt4 (0, &tc1->lcl_ip.ip4, + &tc1->rmt_ip.ip4, + tc1->lcl_port, tc1->rmt_port, + tc1->proto, 0, &is_filtered); + TCP_TEST ((tconn == 0), "lookup result should be null"); + tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4, + &tc2->rmt_ip.ip4, + tc2->lcl_port, tc2->rmt_port, + tc2->proto, 0, &is_filtered); + TCP_TEST ((tconn == 0), "lookup result should be null"); + + /* + * Re-add and lookup tc2 + */ + session_lookup_add_connection (tc1, tc1->s_index); + tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4, + &tc2->rmt_ip.ip4, + tc2->lcl_port, tc2->rmt_port, + tc2->proto, 0, &is_filtered); + TCP_TEST ((tconn == 0), "lookup result should be null"); + + return 0; +} + +static int +tcp_test_session (vlib_main_t * vm, unformat_input_t * input) +{ + int rv = 0; + tcp_connection_t *tc0; + ip4_address_t local, remote; + u16 local_port, remote_port; + tcp_main_t *tm = vnet_get_tcp_main (); + int is_add = 1; + + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "del")) + is_add = 0; + else if (unformat (input, "add")) + is_add = 1; + else + break; + } + + if (is_add) + { + local.as_u32 = clib_host_to_net_u32 (0x06000101); + remote.as_u32 = clib_host_to_net_u32 (0x06000102); + local_port = clib_host_to_net_u16 (1234); + remote_port = clib_host_to_net_u16 (11234); + + pool_get (tm->connections[0], tc0); + memset (tc0, 0, sizeof (*tc0)); + + tc0->state = TCP_STATE_ESTABLISHED; + tc0->rcv_las = 1; + tc0->c_c_index = tc0 - tm->connections[0]; + tc0->c_lcl_port = local_port; + tc0->c_rmt_port = remote_port; + tc0->c_is_ip4 = 1; + tc0->c_thread_index = 0; + tc0->c_lcl_ip4.as_u32 = local.as_u32; + tc0->c_rmt_ip4.as_u32 = remote.as_u32; + tc0->rcv_opts.mss = 1450; + tcp_connection_init_vars (tc0); + + TCP_EVT_DBG (TCP_EVT_OPEN, tc0); + + if (stream_session_accept (&tc0->connection, 0 /* listener index */ , + 0 /* notify */ )) + clib_warning ("stream_session_accept failed"); + + stream_session_accept_notify (&tc0->connection); + } + else + { + tc0 = tcp_connection_get (0 /* connection index */ , 0 /* thread */ ); + tc0->state = TCP_STATE_CLOSED; + stream_session_disconnect_notify (&tc0->connection); + } + + return rv; +} + +static clib_error_t * +tcp_test (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd_arg) +{ + int res = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "sack")) + { + res = tcp_test_sack (vm, input); + } + else if (unformat (input, "fifo")) + { + res = tcp_test_fifo (vm, input); + } + else if (unformat (input, "session")) + { + res = tcp_test_session (vm, input); + } + else if (unformat (input, "lookup")) + { + res = tcp_test_lookup (vm, input); + } + else if (unformat (input, "all")) + { + if ((res = tcp_test_sack (vm, input))) + goto done; + if ((res = tcp_test_fifo (vm, input))) + goto done; + if ((res = tcp_test_lookup (vm, input))) + goto done; + } + else + break; + } + +done: + if (res) + return clib_error_return (0, "TCP unit test failed"); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (tcp_test_command, static) = +{ + .path = "test tcp", + .short_help = "internal tcp unit tests", + .function = tcp_test, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |