Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <inttypes.h> |
| 4 | |
| 5 | #include <openbsc/gprs_llc.h> |
Holger Hans Peter Freyther | 2d10ad1 | 2014-08-04 14:22:13 +0200 | [diff] [blame] | 6 | #include <openbsc/gprs_utils.h> |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 7 | |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 8 | #include <openbsc/debug.h> |
| 9 | |
| 10 | #include <osmocom/core/application.h> |
Harald Welte | 4e349d6 | 2016-04-25 19:07:34 +0200 | [diff] [blame] | 11 | #include <osmocom/gsm/gsup.h> |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 12 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 13 | #define ASSERT_FALSE(x) if (x) { printf("Should have returned false.\n"); abort(); } |
| 14 | #define ASSERT_TRUE(x) if (!x) { printf("Should have returned true.\n"); abort(); } |
| 15 | |
| 16 | /** |
| 17 | * GSM 04.64 8.4.2 Receipt of unacknowledged information |
| 18 | */ |
| 19 | static int nu_is_retransmission(uint16_t nu, uint16_t vur) |
| 20 | { |
| 21 | int ret = gprs_llc_is_retransmit(nu, vur); |
| 22 | printf("N(U) = %d, V(UR) = %d => %s\n", nu, vur, |
| 23 | ret == 1 ? "retransmit" : "new"); |
| 24 | return ret; |
| 25 | } |
| 26 | |
| 27 | static void test_8_4_2() |
| 28 | { |
| 29 | printf("Testing gprs_llc_is_retransmit.\n"); |
| 30 | |
| 31 | ASSERT_FALSE(nu_is_retransmission(0, 0)); |
| 32 | ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| 33 | |
| 34 | /* expect 1... check for retransmissions */ |
| 35 | ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| 36 | ASSERT_TRUE (nu_is_retransmission(511, 1)); |
| 37 | ASSERT_TRUE (nu_is_retransmission(483, 1)); |
| 38 | ASSERT_TRUE (nu_is_retransmission(482, 1)); |
| 39 | ASSERT_FALSE(nu_is_retransmission(481, 1)); |
| 40 | |
| 41 | /* expect 511... check for retransmissions */ |
| 42 | ASSERT_FALSE(nu_is_retransmission(0, 240)); // ahead |
| 43 | ASSERT_FALSE(nu_is_retransmission(0, 511)); // ahead |
| 44 | ASSERT_FALSE(nu_is_retransmission(1, 511)); // ahead |
| 45 | ASSERT_FALSE(nu_is_retransmission(511, 511)); // same |
| 46 | ASSERT_TRUE (nu_is_retransmission(510, 511)); // behind |
| 47 | ASSERT_TRUE (nu_is_retransmission(481, 511)); // behind |
| 48 | ASSERT_FALSE(nu_is_retransmission(479, 511)); // wrapped |
| 49 | } |
| 50 | |
Holger Hans Peter Freyther | 2d10ad1 | 2014-08-04 14:22:13 +0200 | [diff] [blame] | 51 | static void apn_round_trip(const uint8_t *input, size_t len, const char *wanted_output) |
| 52 | { |
| 53 | char output[len ? len : 1]; |
| 54 | uint8_t encoded[len + 50]; |
| 55 | char *out_str; |
| 56 | int enc_len; |
| 57 | |
| 58 | /* decode and verify we have what we want */ |
| 59 | out_str = gprs_apn_to_str(output, input, len); |
| 60 | OSMO_ASSERT(out_str); |
| 61 | OSMO_ASSERT(out_str == &output[0]); |
| 62 | OSMO_ASSERT(strlen(out_str) == strlen(wanted_output)); |
| 63 | OSMO_ASSERT(strcmp(out_str, wanted_output) == 0); |
| 64 | |
| 65 | /* encode and verify it */ |
| 66 | if (len != 0) { |
| 67 | enc_len = gprs_str_to_apn(encoded, ARRAY_SIZE(encoded), wanted_output); |
| 68 | OSMO_ASSERT(enc_len == len); |
| 69 | OSMO_ASSERT(memcmp(encoded, input, enc_len) == 0); |
| 70 | } else { |
| 71 | enc_len = gprs_str_to_apn(encoded, 0, wanted_output); |
| 72 | OSMO_ASSERT(enc_len == -1); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | static void test_gsm_03_03_apn(void) |
| 77 | { |
| 78 | |
| 79 | { |
| 80 | /* test invalid writes */ |
| 81 | const uint8_t ref[10] = { 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF }; |
| 82 | uint8_t output[10]; |
| 83 | int enc_len; |
| 84 | |
| 85 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 86 | enc_len = gprs_str_to_apn(output, 0, ""); |
| 87 | OSMO_ASSERT(enc_len == -1); |
| 88 | OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0); |
| 89 | |
| 90 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 91 | enc_len = gprs_str_to_apn(output, 0, "foo"); |
| 92 | OSMO_ASSERT(enc_len == -1); |
| 93 | OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0); |
| 94 | |
| 95 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 96 | enc_len = gprs_str_to_apn(output, 1, "foo"); |
| 97 | OSMO_ASSERT(enc_len == -1); |
| 98 | OSMO_ASSERT(memcmp(ref + 1, output + 1, ARRAY_SIZE(ref) - 1) == 0); |
| 99 | |
| 100 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 101 | enc_len = gprs_str_to_apn(output, 2, "foo"); |
| 102 | OSMO_ASSERT(enc_len == -1); |
| 103 | OSMO_ASSERT(memcmp(ref + 2, output + 2, ARRAY_SIZE(ref) - 2) == 0); |
| 104 | |
| 105 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 106 | enc_len = gprs_str_to_apn(output, 3, "foo"); |
| 107 | OSMO_ASSERT(enc_len == -1); |
| 108 | OSMO_ASSERT(memcmp(ref + 3, output + 3, ARRAY_SIZE(ref) - 3) == 0); |
| 109 | } |
| 110 | |
| 111 | { |
| 112 | /* single empty label */ |
| 113 | uint8_t input[] = { 0x0 }; |
| 114 | const char *output = ""; |
| 115 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 116 | } |
| 117 | |
| 118 | { |
| 119 | /* no label */ |
| 120 | uint8_t input[] = { }; |
| 121 | const char *output = ""; |
| 122 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 123 | } |
| 124 | |
| 125 | { |
| 126 | /* single label with A */ |
| 127 | uint8_t input[] = { 0x1, 65 }; |
| 128 | const char *output = "A"; |
| 129 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 130 | OSMO_ASSERT(gprs_apn_to_str(NULL, input, ARRAY_SIZE(input) - 1) == NULL); |
| 131 | } |
| 132 | |
| 133 | { |
| 134 | uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 }; |
| 135 | const char *output = "ABC.Zz"; |
| 136 | char tmp[strlen(output) + 1]; |
| 137 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 138 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 1) == NULL); |
| 139 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 2) == NULL); |
| 140 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 4) == NULL); |
| 141 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 5) == NULL); |
| 142 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 6) == NULL); |
| 143 | } |
| 144 | } |
| 145 | |
Jacob Erlbeck | c9a7ba3 | 2015-01-19 08:27:34 +0100 | [diff] [blame] | 146 | static void test_gprs_timer_enc_dec(void) |
| 147 | { |
| 148 | int i, u, secs, tmr; |
| 149 | const int upper_secs_test_limit = 12000; |
| 150 | int dec_secs, last_dec_secs = -1; |
| 151 | |
| 152 | printf("Test GPRS timer decoding/encoding\n"); |
| 153 | |
| 154 | /* Check gprs_tmr_to_secs with all 256 encoded values */ |
| 155 | for (u = 0; u <= GPRS_TMR_DEACTIVATED; u += 32) { |
| 156 | fprintf(stderr, "Testing decoding with timer value unit %u\n", |
| 157 | u / 32); |
| 158 | for (i = 0; i < 32; i++) { |
| 159 | switch (u) { |
| 160 | case GPRS_TMR_2SECONDS: |
| 161 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 2 * i); |
| 162 | break; |
| 163 | |
| 164 | default: |
| 165 | case GPRS_TMR_MINUTE: |
| 166 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 60 * i); |
| 167 | break; |
| 168 | |
| 169 | case GPRS_TMR_6MINUTE: |
| 170 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 360 * i); |
| 171 | break; |
| 172 | |
| 173 | case GPRS_TMR_DEACTIVATED: |
| 174 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == -1); |
| 175 | break; |
| 176 | } |
| 177 | |
| 178 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) < upper_secs_test_limit); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | /* Check gprs_secs_to_tmr_floor for secs that can exactly be |
| 183 | * represented as GPRS timer values */ |
| 184 | for (i = 0; i < GPRS_TMR_DEACTIVATED; i++) { |
| 185 | int j; |
| 186 | secs = gprs_tmr_to_secs(i); |
| 187 | tmr = gprs_secs_to_tmr_floor(secs); |
| 188 | OSMO_ASSERT(secs == gprs_tmr_to_secs(tmr)); |
| 189 | |
| 190 | /* Check that the highest resolution is used */ |
| 191 | for (j = 0; j < tmr; j++) |
| 192 | OSMO_ASSERT(secs != gprs_tmr_to_secs(j)); |
| 193 | } |
| 194 | OSMO_ASSERT(GPRS_TMR_DEACTIVATED == gprs_secs_to_tmr_floor(-1)); |
| 195 | |
| 196 | /* Check properties of gprs_secs_to_tmr_floor */ |
| 197 | for (secs = 0; secs <= upper_secs_test_limit; secs++) { |
| 198 | int tmr = gprs_secs_to_tmr_floor(secs); |
| 199 | int delta_secs = gprs_tmr_to_secs((tmr & ~0x1f) | 1); |
| 200 | dec_secs = gprs_tmr_to_secs(tmr); |
| 201 | |
| 202 | /* Check floor */ |
| 203 | OSMO_ASSERT(dec_secs <= secs); |
| 204 | /* Check monotonicity */ |
| 205 | OSMO_ASSERT(dec_secs >= last_dec_secs); |
| 206 | /* Check max distance (<= resolution) */ |
| 207 | OSMO_ASSERT(dec_secs - last_dec_secs <= delta_secs); |
| 208 | |
| 209 | last_dec_secs = dec_secs; |
| 210 | } |
| 211 | } |
| 212 | |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 213 | const struct log_info_cat default_categories[] = { |
| 214 | [DGPRS] = { |
| 215 | .name = "DGPRS", |
| 216 | .description = "GPRS Packet Service", |
| 217 | .enabled = 0, .loglevel = LOGL_DEBUG, |
| 218 | }, |
| 219 | }; |
| 220 | |
| 221 | static struct log_info info = { |
| 222 | .cat = default_categories, |
| 223 | .num_cat = ARRAY_SIZE(default_categories), |
| 224 | }; |
| 225 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 226 | int main(int argc, char **argv) |
| 227 | { |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 228 | osmo_init_logging(&info); |
| 229 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 230 | test_8_4_2(); |
Holger Hans Peter Freyther | 2d10ad1 | 2014-08-04 14:22:13 +0200 | [diff] [blame] | 231 | test_gsm_03_03_apn(); |
Jacob Erlbeck | c9a7ba3 | 2015-01-19 08:27:34 +0100 | [diff] [blame] | 232 | test_gprs_timer_enc_dec(); |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 233 | |
| 234 | printf("Done.\n"); |
| 235 | return EXIT_SUCCESS; |
| 236 | } |