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 | |
| 8 | #define ASSERT_FALSE(x) if (x) { printf("Should have returned false.\n"); abort(); } |
| 9 | #define ASSERT_TRUE(x) if (!x) { printf("Should have returned true.\n"); abort(); } |
| 10 | |
| 11 | /** |
| 12 | * GSM 04.64 8.4.2 Receipt of unacknowledged information |
| 13 | */ |
| 14 | static int nu_is_retransmission(uint16_t nu, uint16_t vur) |
| 15 | { |
| 16 | int ret = gprs_llc_is_retransmit(nu, vur); |
| 17 | printf("N(U) = %d, V(UR) = %d => %s\n", nu, vur, |
| 18 | ret == 1 ? "retransmit" : "new"); |
| 19 | return ret; |
| 20 | } |
| 21 | |
| 22 | static void test_8_4_2() |
| 23 | { |
| 24 | printf("Testing gprs_llc_is_retransmit.\n"); |
| 25 | |
| 26 | ASSERT_FALSE(nu_is_retransmission(0, 0)); |
| 27 | ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| 28 | |
| 29 | /* expect 1... check for retransmissions */ |
| 30 | ASSERT_TRUE (nu_is_retransmission(0, 1)); |
| 31 | ASSERT_TRUE (nu_is_retransmission(511, 1)); |
| 32 | ASSERT_TRUE (nu_is_retransmission(483, 1)); |
| 33 | ASSERT_TRUE (nu_is_retransmission(482, 1)); |
| 34 | ASSERT_FALSE(nu_is_retransmission(481, 1)); |
| 35 | |
| 36 | /* expect 511... check for retransmissions */ |
| 37 | ASSERT_FALSE(nu_is_retransmission(0, 240)); // ahead |
| 38 | ASSERT_FALSE(nu_is_retransmission(0, 511)); // ahead |
| 39 | ASSERT_FALSE(nu_is_retransmission(1, 511)); // ahead |
| 40 | ASSERT_FALSE(nu_is_retransmission(511, 511)); // same |
| 41 | ASSERT_TRUE (nu_is_retransmission(510, 511)); // behind |
| 42 | ASSERT_TRUE (nu_is_retransmission(481, 511)); // behind |
| 43 | ASSERT_FALSE(nu_is_retransmission(479, 511)); // wrapped |
| 44 | } |
| 45 | |
Holger Hans Peter Freyther | 2d10ad1 | 2014-08-04 14:22:13 +0200 | [diff] [blame] | 46 | static void apn_round_trip(const uint8_t *input, size_t len, const char *wanted_output) |
| 47 | { |
| 48 | char output[len ? len : 1]; |
| 49 | uint8_t encoded[len + 50]; |
| 50 | char *out_str; |
| 51 | int enc_len; |
| 52 | |
| 53 | /* decode and verify we have what we want */ |
| 54 | out_str = gprs_apn_to_str(output, input, len); |
| 55 | OSMO_ASSERT(out_str); |
| 56 | OSMO_ASSERT(out_str == &output[0]); |
| 57 | OSMO_ASSERT(strlen(out_str) == strlen(wanted_output)); |
| 58 | OSMO_ASSERT(strcmp(out_str, wanted_output) == 0); |
| 59 | |
| 60 | /* encode and verify it */ |
| 61 | if (len != 0) { |
| 62 | enc_len = gprs_str_to_apn(encoded, ARRAY_SIZE(encoded), wanted_output); |
| 63 | OSMO_ASSERT(enc_len == len); |
| 64 | OSMO_ASSERT(memcmp(encoded, input, enc_len) == 0); |
| 65 | } else { |
| 66 | enc_len = gprs_str_to_apn(encoded, 0, wanted_output); |
| 67 | OSMO_ASSERT(enc_len == -1); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | static void test_gsm_03_03_apn(void) |
| 72 | { |
| 73 | |
| 74 | { |
| 75 | /* test invalid writes */ |
| 76 | const uint8_t ref[10] = { 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF }; |
| 77 | uint8_t output[10]; |
| 78 | int enc_len; |
| 79 | |
| 80 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 81 | enc_len = gprs_str_to_apn(output, 0, ""); |
| 82 | OSMO_ASSERT(enc_len == -1); |
| 83 | OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0); |
| 84 | |
| 85 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 86 | enc_len = gprs_str_to_apn(output, 0, "foo"); |
| 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, 1, "foo"); |
| 92 | OSMO_ASSERT(enc_len == -1); |
| 93 | OSMO_ASSERT(memcmp(ref + 1, output + 1, ARRAY_SIZE(ref) - 1) == 0); |
| 94 | |
| 95 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 96 | enc_len = gprs_str_to_apn(output, 2, "foo"); |
| 97 | OSMO_ASSERT(enc_len == -1); |
| 98 | OSMO_ASSERT(memcmp(ref + 2, output + 2, ARRAY_SIZE(ref) - 2) == 0); |
| 99 | |
| 100 | memcpy(output, ref, ARRAY_SIZE(output)); |
| 101 | enc_len = gprs_str_to_apn(output, 3, "foo"); |
| 102 | OSMO_ASSERT(enc_len == -1); |
| 103 | OSMO_ASSERT(memcmp(ref + 3, output + 3, ARRAY_SIZE(ref) - 3) == 0); |
| 104 | } |
| 105 | |
| 106 | { |
| 107 | /* single empty label */ |
| 108 | uint8_t input[] = { 0x0 }; |
| 109 | const char *output = ""; |
| 110 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 111 | } |
| 112 | |
| 113 | { |
| 114 | /* no label */ |
| 115 | uint8_t input[] = { }; |
| 116 | const char *output = ""; |
| 117 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 118 | } |
| 119 | |
| 120 | { |
| 121 | /* single label with A */ |
| 122 | uint8_t input[] = { 0x1, 65 }; |
| 123 | const char *output = "A"; |
| 124 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 125 | OSMO_ASSERT(gprs_apn_to_str(NULL, input, ARRAY_SIZE(input) - 1) == NULL); |
| 126 | } |
| 127 | |
| 128 | { |
| 129 | uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 }; |
| 130 | const char *output = "ABC.Zz"; |
| 131 | char tmp[strlen(output) + 1]; |
| 132 | apn_round_trip(input, ARRAY_SIZE(input), output); |
| 133 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 1) == NULL); |
| 134 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 2) == NULL); |
| 135 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 4) == NULL); |
| 136 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 5) == NULL); |
| 137 | OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 6) == NULL); |
| 138 | } |
| 139 | } |
| 140 | |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 141 | int main(int argc, char **argv) |
| 142 | { |
| 143 | test_8_4_2(); |
Holger Hans Peter Freyther | 2d10ad1 | 2014-08-04 14:22:13 +0200 | [diff] [blame] | 144 | test_gsm_03_03_apn(); |
Holger Hans Peter Freyther | 6721a08 | 2011-06-23 17:53:27 -0400 | [diff] [blame] | 145 | |
| 146 | printf("Done.\n"); |
| 147 | return EXIT_SUCCESS; |
| 148 | } |