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 | |
Neels Hofmeyr | 4b4c586 | 2017-09-04 15:13:25 +0200 | [diff] [blame] | 5 | #include <osmocom/sgsn/gprs_llc.h> |
| 6 | #include <osmocom/sgsn/gprs_utils.h> |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 7 | |
Neels Hofmeyr | 4b4c586 | 2017-09-04 15:13:25 +0200 | [diff] [blame] | 8 | #include <osmocom/sgsn/debug.h> |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 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 | |
Jacob Erlbeck | c9a7ba3 | 2015-01-19 08:27:34 +0100 | [diff] [blame] | 51 | static void test_gprs_timer_enc_dec(void) |
| 52 | { |
| 53 | int i, u, secs, tmr; |
| 54 | const int upper_secs_test_limit = 12000; |
| 55 | int dec_secs, last_dec_secs = -1; |
| 56 | |
| 57 | printf("Test GPRS timer decoding/encoding\n"); |
| 58 | |
| 59 | /* Check gprs_tmr_to_secs with all 256 encoded values */ |
| 60 | for (u = 0; u <= GPRS_TMR_DEACTIVATED; u += 32) { |
| 61 | fprintf(stderr, "Testing decoding with timer value unit %u\n", |
| 62 | u / 32); |
| 63 | for (i = 0; i < 32; i++) { |
| 64 | switch (u) { |
| 65 | case GPRS_TMR_2SECONDS: |
| 66 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 2 * i); |
| 67 | break; |
| 68 | |
| 69 | default: |
| 70 | case GPRS_TMR_MINUTE: |
| 71 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 60 * i); |
| 72 | break; |
| 73 | |
| 74 | case GPRS_TMR_6MINUTE: |
| 75 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 360 * i); |
| 76 | break; |
| 77 | |
| 78 | case GPRS_TMR_DEACTIVATED: |
| 79 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) == -1); |
| 80 | break; |
| 81 | } |
| 82 | |
| 83 | OSMO_ASSERT(gprs_tmr_to_secs(u + i) < upper_secs_test_limit); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | /* Check gprs_secs_to_tmr_floor for secs that can exactly be |
| 88 | * represented as GPRS timer values */ |
| 89 | for (i = 0; i < GPRS_TMR_DEACTIVATED; i++) { |
| 90 | int j; |
| 91 | secs = gprs_tmr_to_secs(i); |
| 92 | tmr = gprs_secs_to_tmr_floor(secs); |
| 93 | OSMO_ASSERT(secs == gprs_tmr_to_secs(tmr)); |
| 94 | |
| 95 | /* Check that the highest resolution is used */ |
| 96 | for (j = 0; j < tmr; j++) |
| 97 | OSMO_ASSERT(secs != gprs_tmr_to_secs(j)); |
| 98 | } |
| 99 | OSMO_ASSERT(GPRS_TMR_DEACTIVATED == gprs_secs_to_tmr_floor(-1)); |
| 100 | |
| 101 | /* Check properties of gprs_secs_to_tmr_floor */ |
| 102 | for (secs = 0; secs <= upper_secs_test_limit; secs++) { |
| 103 | int tmr = gprs_secs_to_tmr_floor(secs); |
| 104 | int delta_secs = gprs_tmr_to_secs((tmr & ~0x1f) | 1); |
| 105 | dec_secs = gprs_tmr_to_secs(tmr); |
| 106 | |
| 107 | /* Check floor */ |
| 108 | OSMO_ASSERT(dec_secs <= secs); |
| 109 | /* Check monotonicity */ |
| 110 | OSMO_ASSERT(dec_secs >= last_dec_secs); |
| 111 | /* Check max distance (<= resolution) */ |
| 112 | OSMO_ASSERT(dec_secs - last_dec_secs <= delta_secs); |
| 113 | |
| 114 | last_dec_secs = dec_secs; |
| 115 | } |
| 116 | } |
| 117 | |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 118 | const struct log_info_cat default_categories[] = { |
| 119 | [DGPRS] = { |
| 120 | .name = "DGPRS", |
| 121 | .description = "GPRS Packet Service", |
| 122 | .enabled = 0, .loglevel = LOGL_DEBUG, |
| 123 | }, |
| 124 | }; |
| 125 | |
| 126 | static struct log_info info = { |
| 127 | .cat = default_categories, |
| 128 | .num_cat = ARRAY_SIZE(default_categories), |
| 129 | }; |
| 130 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 131 | int main(int argc, char **argv) |
| 132 | { |
Neels Hofmeyr | 8de6b86 | 2018-04-16 00:57:10 +0200 | [diff] [blame] | 133 | void *ctx = talloc_named_const(NULL, 0, "gprs_test"); |
| 134 | osmo_init_logging2(ctx, &info); |
Jacob Erlbeck | 2a5d950 | 2015-01-12 11:14:18 +0100 | [diff] [blame] | 135 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 136 | test_8_4_2(); |
Jacob Erlbeck | c9a7ba3 | 2015-01-19 08:27:34 +0100 | [diff] [blame] | 137 | test_gprs_timer_enc_dec(); |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 138 | |
| 139 | printf("Done.\n"); |
| 140 | return EXIT_SUCCESS; |
| 141 | } |