Vadim Yanitskiy | 68930e8 | 2017-01-19 03:33:24 +0700 | [diff] [blame] | 1 | #include <stdlib.h> |
| 2 | #include <string.h> |
| 3 | #include <stdio.h> |
| 4 | #include <time.h> |
| 5 | |
| 6 | #include <osmocom/core/bits.h> |
| 7 | #include <osmocom/core/conv.h> |
| 8 | #include <osmocom/core/utils.h> |
| 9 | |
| 10 | #include "conv.h" |
| 11 | |
| 12 | static void fill_random(ubit_t *b, int n) |
| 13 | { |
| 14 | int i; |
| 15 | |
| 16 | for (i = 0; i < n; i++) |
| 17 | b[i] = random() & 1; |
| 18 | } |
| 19 | |
| 20 | int do_check(const struct conv_test_vector *test) |
| 21 | { |
| 22 | ubit_t *bu0, *bu1; |
| 23 | sbit_t *bs; |
| 24 | int len, j; |
| 25 | |
| 26 | bu0 = malloc(sizeof(ubit_t) * MAX_LEN_BITS); |
| 27 | bu1 = malloc(sizeof(ubit_t) * MAX_LEN_BITS); |
| 28 | bs = malloc(sizeof(sbit_t) * MAX_LEN_BITS); |
| 29 | |
| 30 | srandom(time(NULL)); |
| 31 | |
| 32 | /* Test name */ |
| 33 | printf("[+] Testing: %s\n", test->name); |
| 34 | |
| 35 | /* Check length */ |
| 36 | len = osmo_conv_get_input_length(test->code, 0); |
| 37 | printf("[.] Input length : ret = %3d exp = %3d -> %s\n", |
| 38 | len, test->in_len, len == test->in_len ? "OK" : "Bad !"); |
| 39 | |
| 40 | if (len != test->in_len) { |
| 41 | fprintf(stderr, "[!] Failure for input length computation\n"); |
| 42 | return -1; |
| 43 | } |
| 44 | |
| 45 | len = osmo_conv_get_output_length(test->code, 0); |
| 46 | printf("[.] Output length : ret = %3d exp = %3d -> %s\n", |
| 47 | len, test->out_len, len == test->out_len ? "OK" : "Bad !"); |
| 48 | |
| 49 | if (len != test->out_len) { |
| 50 | fprintf(stderr, "[!] Failure for output length computation\n"); |
| 51 | return -1; |
| 52 | } |
| 53 | |
| 54 | /* Check pre-computed vector */ |
| 55 | if (test->has_vec) { |
| 56 | printf("[.] Pre computed vector checks:\n"); |
| 57 | |
| 58 | printf("[..] Encoding: "); |
| 59 | |
| 60 | osmo_pbit2ubit(bu0, test->vec_in, test->in_len); |
| 61 | |
| 62 | len = osmo_conv_encode(test->code, bu0, bu1); |
| 63 | if (len != test->out_len) { |
| 64 | printf("ERROR !\n"); |
| 65 | fprintf(stderr, "[!] Failed encoding length check\n"); |
| 66 | return -1; |
| 67 | } |
| 68 | |
| 69 | osmo_pbit2ubit(bu0, test->vec_out, test->out_len); |
| 70 | |
| 71 | if (memcmp(bu0, bu1, test->out_len)) { |
| 72 | printf("ERROR !\n"); |
| 73 | fprintf(stderr, "[!] Failed encoding: Results don't match\n"); |
| 74 | return -1; |
| 75 | }; |
| 76 | |
| 77 | printf("OK\n"); |
| 78 | |
| 79 | |
| 80 | printf("[..] Decoding: "); |
| 81 | |
| 82 | osmo_ubit2sbit(bs, bu0, len); |
| 83 | |
| 84 | len = osmo_conv_decode(test->code, bs, bu1); |
| 85 | if (len != 0) { |
| 86 | printf("ERROR !\n"); |
| 87 | fprintf(stderr, "[!] Failed decoding: non-zero path (%d)\n", len); |
| 88 | return -1; |
| 89 | } |
| 90 | |
| 91 | osmo_pbit2ubit(bu0, test->vec_in, test->in_len); |
| 92 | |
| 93 | if (memcmp(bu0, bu1, test->in_len)) { |
| 94 | printf("ERROR !\n"); |
| 95 | fprintf(stderr, "[!] Failed decoding: Results don't match\n"); |
| 96 | return -1; |
| 97 | } |
| 98 | |
| 99 | printf("OK\n"); |
| 100 | } |
| 101 | |
| 102 | /* Check random vector */ |
| 103 | printf("[.] Random vector checks:\n"); |
| 104 | |
| 105 | for (j = 0; j < 3; j++) { |
| 106 | printf("[..] Encoding / Decoding cycle : "); |
| 107 | |
| 108 | fill_random(bu0, test->in_len); |
| 109 | |
| 110 | len = osmo_conv_encode(test->code, bu0, bu1); |
| 111 | if (len != test->out_len) { |
| 112 | printf("ERROR !\n"); |
| 113 | fprintf(stderr, "[!] Failed encoding length check\n"); |
| 114 | return -1; |
| 115 | } |
| 116 | |
| 117 | osmo_ubit2sbit(bs, bu1, len); |
| 118 | |
| 119 | len = osmo_conv_decode(test->code, bs, bu1); |
| 120 | if (len != 0) { |
| 121 | printf("ERROR !\n"); |
| 122 | fprintf(stderr, "[!] Failed decoding: non-zero path (%d)\n", len); |
| 123 | return -1; |
| 124 | } |
| 125 | |
| 126 | if (memcmp(bu0, bu1, test->in_len)) { |
| 127 | printf("ERROR !\n"); |
| 128 | fprintf(stderr, "[!] Failed decoding: Results don't match\n"); |
| 129 | return -1; |
| 130 | } |
| 131 | |
| 132 | printf("OK\n"); |
| 133 | } |
| 134 | |
| 135 | /* Spacing */ |
| 136 | printf("\n"); |
| 137 | |
| 138 | free(bs); |
| 139 | free(bu1); |
| 140 | free(bu0); |
| 141 | |
| 142 | return 0; |
| 143 | } |