| #include <stdio.h> |
| #include <stdlib.h> |
| #include <inttypes.h> |
| |
| #include <openbsc/gprs_llc.h> |
| #include <openbsc/gprs_utils.h> |
| |
| #include <openbsc/debug.h> |
| |
| #include <osmocom/core/application.h> |
| #include <osmocom/gsm/gsup.h> |
| |
| #define ASSERT_FALSE(x) if (x) { printf("Should have returned false.\n"); abort(); } |
| #define ASSERT_TRUE(x) if (!x) { printf("Should have returned true.\n"); abort(); } |
| |
| /** |
| * GSM 04.64 8.4.2 Receipt of unacknowledged information |
| */ |
| static int nu_is_retransmission(uint16_t nu, uint16_t vur) |
| { |
| int ret = gprs_llc_is_retransmit(nu, vur); |
| printf("N(U) = %d, V(UR) = %d => %s\n", nu, vur, |
| ret == 1 ? "retransmit" : "new"); |
| return ret; |
| } |
| |
| static void test_8_4_2() |
| { |
| printf("Testing gprs_llc_is_retransmit.\n"); |
| |
| ASSERT_FALSE(nu_is_retransmission(0, 0)); |
| ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| |
| /* expect 1... check for retransmissions */ |
| ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| ASSERT_TRUE (nu_is_retransmission(511, 1)); |
| ASSERT_TRUE (nu_is_retransmission(483, 1)); |
| ASSERT_TRUE (nu_is_retransmission(482, 1)); |
| ASSERT_FALSE(nu_is_retransmission(481, 1)); |
| |
| /* expect 511... check for retransmissions */ |
| ASSERT_FALSE(nu_is_retransmission(0, 240)); // ahead |
| ASSERT_FALSE(nu_is_retransmission(0, 511)); // ahead |
| ASSERT_FALSE(nu_is_retransmission(1, 511)); // ahead |
| ASSERT_FALSE(nu_is_retransmission(511, 511)); // same |
| ASSERT_TRUE (nu_is_retransmission(510, 511)); // behind |
| ASSERT_TRUE (nu_is_retransmission(481, 511)); // behind |
| ASSERT_FALSE(nu_is_retransmission(479, 511)); // wrapped |
| } |
| |
| static void apn_round_trip(const uint8_t *input, size_t len, const char *wanted_output) |
| { |
| char output[len ? len : 1]; |
| uint8_t encoded[len + 50]; |
| char *out_str; |
| int enc_len; |
| |
| /* decode and verify we have what we want */ |
| out_str = gprs_apn_to_str(output, input, len); |
| OSMO_ASSERT(out_str); |
| OSMO_ASSERT(out_str == &output[0]); |
| OSMO_ASSERT(strlen(out_str) == strlen(wanted_output)); |
| OSMO_ASSERT(strcmp(out_str, wanted_output) == 0); |
| |
| /* encode and verify it */ |
| if (len != 0) { |
| enc_len = gprs_str_to_apn(encoded, ARRAY_SIZE(encoded), wanted_output); |
| OSMO_ASSERT(enc_len == len); |
| OSMO_ASSERT(memcmp(encoded, input, enc_len) == 0); |
| } else { |
| enc_len = gprs_str_to_apn(encoded, 0, wanted_output); |
| OSMO_ASSERT(enc_len == -1); |
| } |
| } |
| |
| static void test_gsm_03_03_apn(void) |
| { |
| |
| { |
| /* test invalid writes */ |
| const uint8_t ref[10] = { 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF }; |
| uint8_t output[10]; |
| int enc_len; |
| |
| memcpy(output, ref, ARRAY_SIZE(output)); |
| enc_len = gprs_str_to_apn(output, 0, ""); |
| OSMO_ASSERT(enc_len == -1); |
| OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0); |
| |
| memcpy(output, ref, ARRAY_SIZE(output)); |
| enc_len = gprs_str_to_apn(output, 0, "foo"); |
| OSMO_ASSERT(enc_len == -1); |
| OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0); |
| |
| memcpy(output, ref, ARRAY_SIZE(output)); |
| enc_len = gprs_str_to_apn(output, 1, "foo"); |
| OSMO_ASSERT(enc_len == -1); |
| OSMO_ASSERT(memcmp(ref + 1, output + 1, ARRAY_SIZE(ref) - 1) == 0); |
| |
| memcpy(output, ref, ARRAY_SIZE(output)); |
| enc_len = gprs_str_to_apn(output, 2, "foo"); |
| OSMO_ASSERT(enc_len == -1); |
| OSMO_ASSERT(memcmp(ref + 2, output + 2, ARRAY_SIZE(ref) - 2) == 0); |
| |
| memcpy(output, ref, ARRAY_SIZE(output)); |
| enc_len = gprs_str_to_apn(output, 3, "foo"); |
| OSMO_ASSERT(enc_len == -1); |
| OSMO_ASSERT(memcmp(ref + 3, output + 3, ARRAY_SIZE(ref) - 3) == 0); |
| } |
| |
| { |
| /* single empty label */ |
| uint8_t input[] = { 0x0 }; |
| const char *output = ""; |
| apn_round_trip(input, ARRAY_SIZE(input), output); |
| } |
| |
| { |
| /* no label */ |
| uint8_t input[] = { }; |
| const char *output = ""; |
| apn_round_trip(input, ARRAY_SIZE(input), output); |
| } |
| |
| { |
| /* single label with A */ |
| uint8_t input[] = { 0x1, 65 }; |
| const char *output = "A"; |
| apn_round_trip(input, ARRAY_SIZE(input), output); |
| OSMO_ASSERT(gprs_apn_to_str(NULL, input, ARRAY_SIZE(input) - 1) == NULL); |
| } |
| |
| { |
| uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 }; |
| const char *output = "ABC.Zz"; |
| char tmp[strlen(output) + 1]; |
| apn_round_trip(input, ARRAY_SIZE(input), output); |
| OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 1) == NULL); |
| OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 2) == NULL); |
| OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 4) == NULL); |
| OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 5) == NULL); |
| OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 6) == NULL); |
| } |
| } |
| |
| static void test_gprs_timer_enc_dec(void) |
| { |
| int i, u, secs, tmr; |
| const int upper_secs_test_limit = 12000; |
| int dec_secs, last_dec_secs = -1; |
| |
| printf("Test GPRS timer decoding/encoding\n"); |
| |
| /* Check gprs_tmr_to_secs with all 256 encoded values */ |
| for (u = 0; u <= GPRS_TMR_DEACTIVATED; u += 32) { |
| fprintf(stderr, "Testing decoding with timer value unit %u\n", |
| u / 32); |
| for (i = 0; i < 32; i++) { |
| switch (u) { |
| case GPRS_TMR_2SECONDS: |
| OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 2 * i); |
| break; |
| |
| default: |
| case GPRS_TMR_MINUTE: |
| OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 60 * i); |
| break; |
| |
| case GPRS_TMR_6MINUTE: |
| OSMO_ASSERT(gprs_tmr_to_secs(u + i) == 360 * i); |
| break; |
| |
| case GPRS_TMR_DEACTIVATED: |
| OSMO_ASSERT(gprs_tmr_to_secs(u + i) == -1); |
| break; |
| } |
| |
| OSMO_ASSERT(gprs_tmr_to_secs(u + i) < upper_secs_test_limit); |
| } |
| } |
| |
| /* Check gprs_secs_to_tmr_floor for secs that can exactly be |
| * represented as GPRS timer values */ |
| for (i = 0; i < GPRS_TMR_DEACTIVATED; i++) { |
| int j; |
| secs = gprs_tmr_to_secs(i); |
| tmr = gprs_secs_to_tmr_floor(secs); |
| OSMO_ASSERT(secs == gprs_tmr_to_secs(tmr)); |
| |
| /* Check that the highest resolution is used */ |
| for (j = 0; j < tmr; j++) |
| OSMO_ASSERT(secs != gprs_tmr_to_secs(j)); |
| } |
| OSMO_ASSERT(GPRS_TMR_DEACTIVATED == gprs_secs_to_tmr_floor(-1)); |
| |
| /* Check properties of gprs_secs_to_tmr_floor */ |
| for (secs = 0; secs <= upper_secs_test_limit; secs++) { |
| int tmr = gprs_secs_to_tmr_floor(secs); |
| int delta_secs = gprs_tmr_to_secs((tmr & ~0x1f) | 1); |
| dec_secs = gprs_tmr_to_secs(tmr); |
| |
| /* Check floor */ |
| OSMO_ASSERT(dec_secs <= secs); |
| /* Check monotonicity */ |
| OSMO_ASSERT(dec_secs >= last_dec_secs); |
| /* Check max distance (<= resolution) */ |
| OSMO_ASSERT(dec_secs - last_dec_secs <= delta_secs); |
| |
| last_dec_secs = dec_secs; |
| } |
| } |
| |
| const struct log_info_cat default_categories[] = { |
| [DGPRS] = { |
| .name = "DGPRS", |
| .description = "GPRS Packet Service", |
| .enabled = 0, .loglevel = LOGL_DEBUG, |
| }, |
| }; |
| |
| static struct log_info info = { |
| .cat = default_categories, |
| .num_cat = ARRAY_SIZE(default_categories), |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| osmo_init_logging(&info); |
| |
| test_8_4_2(); |
| test_gsm_03_03_apn(); |
| test_gprs_timer_enc_dec(); |
| |
| printf("Done.\n"); |
| return EXIT_SUCCESS; |
| } |