aboutsummaryrefslogtreecommitdiffstats
path: root/tests/gsup/gsup_test.c
blob: acc7274fc4e3f452533eb03c0514cdf7291131e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
#include <string.h>

#include <osmocom/core/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/application.h>
#include <osmocom/gsm/gsup.h>

#define VERBOSE_FPRINTF(...)

/* Tests for osmo_gsup_messages.c */

#define TEST_IMSI_IE 0x01, 0x08, 0x21, 0x43, 0x65, 0x87, 0x09, 0x21, 0x43, 0xf5
#define TEST_IMSI_STR "123456789012345"

static void test_gsup_messages_dec_enc(void)
{
	int test_idx;
	int rc;
	uint8_t buf[1024];

	static const uint8_t send_auth_info_req[] = {
		0x08,
		TEST_IMSI_IE
	};

	static const uint8_t send_auth_info_err[] = {
		0x09,
		TEST_IMSI_IE,
		0x02, 0x01, 0x07 /* GPRS no allowed */
	};

	static const uint8_t send_auth_info_res[] = {
		0x0a,
		TEST_IMSI_IE,
		0x03, 0x22, /* Auth tuple */
			0x20, 0x10,
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x21, 0x04,
				0x21, 0x22, 0x23, 0x24,
			0x22, 0x08,
				0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
		0x03, 0x22, /* Auth tuple */
			0x20, 0x10,
				0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
				0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90,
			0x21, 0x04,
				0xa1, 0xa2, 0xa3, 0xa4,
			0x22, 0x08,
				0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8,
	};

	static const uint8_t update_location_req[] = {
		0x04,
		TEST_IMSI_IE,
	};

	static const uint8_t update_location_err[] = {
		0x05,
		TEST_IMSI_IE,
		0x02, 0x01, 0x07 /* GPRS no allowed */
	};

	static const uint8_t update_location_res[] = {
		0x06,
		TEST_IMSI_IE,
		0x08, 0x07, /* MSISDN of the subscriber */
			0x91, 0x94, 0x61, 0x46, 0x32, 0x24, 0x43,
		0x09, 0x07, /* HLR-Number of the subscriber */
			0x91, 0x83, 0x52, 0x38, 0x48, 0x83, 0x93,
		0x04, 0x00, /* PDP info complete */
		0x05, 0x19,
			0x10, 0x01, 0x01,
			0x11, 0x02, 0xf1, 0x21, /* IPv4 */
			0x12, 0x09, 0x04, 't', 'e', 's', 't', 0x03, 'a', 'p', 'n',
			0x13, 0x01, 0x02,
			0x14, 0x02, 0xFF, 0x23,
		0x05, 0x11,
			0x10, 0x01, 0x02,
			0x11, 0x02, 0xf1, 0x21, /* IPv4 */
			0x12, 0x08, 0x03, 'f', 'o', 'o', 0x03, 'a', 'p', 'n',
		0x14, 0x02,
			0xAE, 0xFF
	};

	static const uint8_t location_cancellation_req[] = {
		0x1c,
		TEST_IMSI_IE,
		0x06, 0x01, 0x00,
	};

	static const uint8_t location_cancellation_err[] = {
		0x1d,
		TEST_IMSI_IE,
		0x02, 0x01, 0x03 /* Illegal MS */
	};

	static const uint8_t location_cancellation_res[] = {
		0x1e,
		TEST_IMSI_IE,
	};

	static const uint8_t purge_ms_req[] = {
		0x0c,
		TEST_IMSI_IE,
	};

	static const uint8_t purge_ms_err[] = {
		0x0d,
		TEST_IMSI_IE,
		0x02, 0x01, 0x03, /* Illegal MS */
	};

	static const uint8_t purge_ms_res[] = {
		0x0e,
		TEST_IMSI_IE,
		0x07, 0x00,
	};

	static const uint8_t send_auth_info_res_umts[] = {
		0x0a,
		TEST_IMSI_IE,
		0x03, 0x62, /* Auth tuple */
			0x20, 0x10, /* rand */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x21, 0x04, /* sres */
				0x21, 0x22, 0x23, 0x24,
			0x22, 0x08, /* kc */
				0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
			0x23, 0x10, /* IK (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x24, 0x10, /* CK (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x25, 0x10, /* AUTN (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x27, 0x08, /* RES (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
		0x03, 0x62, /* Auth tuple */
			0x20, 0x10, /* rand */
				0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8,
				0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0x10,
			0x21, 0x04, /* sres */
				0xb1, 0xb2, 0xb3, 0xb4,
			0x22, 0x08, /* kc */
				0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8,
			0x23, 0x10, /* IK (UMTS) */
				0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
				0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xd0,
			0x24, 0x10, /* CK (UMTS) */
				0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8,
				0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xe0,
			0x25, 0x10, /* AUTN (UMTS) */
				0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
				0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0xf0,
			0x27, 0x08, /* RES (UMTS) */
				0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
	};

	static const uint8_t send_auth_info_req_auts[] = {
		0x08,
		TEST_IMSI_IE,
		0x26, 0x0e, /* AUTS (UMTS) */
			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
		0x20, 0x10, /* rand */
			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
	};

	static const struct test {
		char *name;
		const uint8_t *data;
		size_t data_len;
	} test_messages[] = {
		{"Send Authentication Info Request",
			send_auth_info_req, sizeof(send_auth_info_req)},
		{"Send Authentication Info Error",
			send_auth_info_err, sizeof(send_auth_info_err)},
		{"Send Authentication Info Result",
			send_auth_info_res, sizeof(send_auth_info_res)},
		{"Update Location Request",
			update_location_req, sizeof(update_location_req)},
		{"Update Location Error",
			update_location_err, sizeof(update_location_err)},
		{"Update Location Result",
			update_location_res, sizeof(update_location_res)},
		{"Location Cancellation Request",
			location_cancellation_req, sizeof(location_cancellation_req)},
		{"Location Cancellation Error",
			location_cancellation_err, sizeof(location_cancellation_err)},
		{"Location Cancellation Result",
			location_cancellation_res, sizeof(location_cancellation_res)},
		{"Purge MS Request",
			purge_ms_req, sizeof(purge_ms_req)},
		{"Purge MS Error",
			purge_ms_err, sizeof(purge_ms_err)},
		{"Purge MS Result",
			purge_ms_res, sizeof(purge_ms_res)},
		{"Send Authentication Info Result with IK, CK, AUTN and RES (UMTS)",
			send_auth_info_res_umts, sizeof(send_auth_info_res_umts)},
		{"Send Authentication Info Request with AUTS and RAND (UMTS)",
			send_auth_info_req_auts, sizeof(send_auth_info_req_auts)},
	};

	printf("Test GSUP message decoding/encoding\n");

	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		const struct test *t = &test_messages[test_idx];
		struct osmo_gsup_message gm = {0};
		struct msgb *msg = msgb_alloc(4096, "gsup_test");
		bool passed = true;

		printf("  Testing %s\n", t->name);

		rc = osmo_gsup_decode(t->data, t->data_len, &gm);
		if (rc < 0)
			passed = false;

		rc = osmo_gsup_encode(msg, &gm);
		if (rc < 0)
			passed = false;

		fprintf(stderr, "  generated message: %s\n", msgb_hexdump(msg));
		fprintf(stderr, "  original message:  %s\n", osmo_hexdump(t->data, t->data_len));
		fprintf(stderr, "  IMSI:              %s\n", gm.imsi);

		if (strcmp(gm.imsi, TEST_IMSI_STR) != 0 ||
		    msgb_length(msg) != t->data_len ||
		    memcmp(msgb_data(msg), t->data, t->data_len) != 0)
			passed = false;

		if (passed)
			printf("          %s OK\n", t->name);
		else
			printf("          %s FAILED: %d<%s> [%u,%u,%zu,%u]\n",
			       t->name, rc, strerror(-rc),
			       strcmp(gm.imsi, TEST_IMSI_STR),
			       msgb_length(msg), t->data_len,
			       memcmp(msgb_data(msg), t->data, t->data_len));
		msgb_free(msg);
	}

	/* simple truncation test */
	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		int j;
		const struct test *t = &test_messages[test_idx];
		int ie_end = t->data_len;
		struct osmo_gsup_message gm = {0};
		int counter = 0;
		int parse_err = 0;

		for (j = t->data_len - 1; j >= 0; --j) {
			rc = osmo_gsup_decode(t->data, j, &gm);
			counter += 1;

			VERBOSE_FPRINTF(stderr,
				"  partial message decoding: "
				"orig_len = %d, trunc = %d, rc = %d, ie_end = %d\n",
				t->data_len, j, rc, ie_end);
			if (rc >= 0) {
				VERBOSE_FPRINTF(stderr,
					"    remaing partial message: %s\n",
					osmo_hexdump(t->data + j, ie_end - j));

				OSMO_ASSERT(j <= ie_end - 2);
				OSMO_ASSERT(t->data[j+0] <= OSMO_GSUP_CN_DOMAIN_IE);
				OSMO_ASSERT(t->data[j+1] <= ie_end - j - 2);

				ie_end = j;
			} else {
				parse_err += 1;
			}
		}

		fprintf(stderr,
			"  message %d: tested %d truncations, %d parse failures\n",
			test_idx, counter, parse_err);
	}

	/* Don't log thousands of message modification errors */
	LOGP(DLGSUP, LOGL_NOTICE, "Stopping DLGSUP logging\n");
	log_set_category_filter(osmo_stderr_target, DLGSUP, 0, 0);

	/* message modification test (relies on ASAN or valgrind being used) */
	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		int j;
		const struct test *t = &test_messages[test_idx];
		struct osmo_gsup_message gm = {0};
		uint8_t val;
		int counter = 0;
		int parse_err = 0;

		OSMO_ASSERT(sizeof(buf) >= t->data_len);

		for (j = t->data_len - 1; j >= 0; --j) {
			memcpy(buf, t->data, t->data_len);
			val = 0;
			do {
				VERBOSE_FPRINTF(stderr,
					"t = %d, len = %d, val = %d\n",
					test_idx, j, val);
				buf[j] = val;
				rc = osmo_gsup_decode(buf, t->data_len, &gm);
				counter += 1;
				if (rc < 0)
					parse_err += 1;

				val += 1;
			} while (val != (uint8_t)256);
		}

		fprintf(stderr,
			"  message %d: tested %d modifications, %d parse failures\n",
			test_idx, counter, parse_err);
	}
}

const struct log_info_cat default_categories[] = {
};

static struct log_info info = {
	.cat = default_categories,
	.num_cat = ARRAY_SIZE(default_categories),
};

int main(int argc, char **argv)
{
	void *ctx = talloc_named_const(NULL, 0, "gsup_test");
	osmo_init_logging2(ctx, &info);
	log_set_print_filename(osmo_stderr_target, 0);
	log_set_print_timestamp(osmo_stderr_target, 0);
	log_set_use_color(osmo_stderr_target, 0);
	log_set_print_category(osmo_stderr_target, 1);

	test_gsup_messages_dec_enc();

	printf("Done.\n");
	return EXIT_SUCCESS;
}