bzrtpConfigsTest.c 72.4 KB
Newer Older
johan's avatar
johan committed
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
/**
 @file bzrtpConfigsTests.c
 @brief Test complete ZRTP key agreement under differents configurations.

 @author Johan Pascal

 @copyright Copyright (C) 2017 Belledonne Communications, Grenoble, France

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include "bzrtp/bzrtp.h"
28
#include "zidCache.h"
Johan Pascal's avatar
Johan Pascal committed
29
#include "bzrtpTest.h"
johan's avatar
johan committed
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
#include "testUtils.h"

#define MAX_PACKET_LENGTH 1000
#define MAX_QUEUE_SIZE 10
#define MAX_CRYPTO_ALG 10
#define MAX_NUM_CHANNEL ZRTP_MAX_CHANNEL_NUMBER

typedef struct packetDatas_struct {
	uint8_t packetString[MAX_PACKET_LENGTH];
	uint16_t packetLength;
} packetDatas_t;

typedef struct clientContext_struct {
	uint8_t id;
	bzrtpContext_t *bzrtpContext;
	bzrtpSrtpSecrets_t *secrets;
johan's avatar
johan committed
46 47 48 49
	int32_t pvs;
	uint8_t haveCacheMismatch;
	uint8_t	sendExportedKey[16];
	uint8_t  recvExportedKey[16];
johan's avatar
johan committed
50 51 52 53 54 55 56 57 58 59 60 61 62
} clientContext_t;

typedef struct cryptoParams_struct {
	uint8_t cipher[MAX_CRYPTO_ALG] ;
	uint8_t cipherNb;
	uint8_t hash[MAX_CRYPTO_ALG] ;
	uint8_t hashNb;
	uint8_t keyAgreement[MAX_CRYPTO_ALG] ;
	uint8_t keyAgreementNb;
	uint8_t sas[MAX_CRYPTO_ALG] ;
	uint8_t sasNb;
	uint8_t authtag[MAX_CRYPTO_ALG] ;
	uint8_t authtagNb;
63 64
	uint8_t dontValidateSASflag; /**< if set to 1, SAS will not be validated even if matching peer **/
	                             /**< if set to 2, SAS will be reset even if matching peer **/
johan's avatar
johan committed
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
} cryptoParams_t;


/* Global vars: message queues for Alice and Bob */
static packetDatas_t aliceQueue[MAX_QUEUE_SIZE];
static packetDatas_t bobQueue[MAX_QUEUE_SIZE];
static uint8_t aliceQueueIndex = 0;
static uint8_t bobQueueIndex = 0;

/* have ids to represent Alice and Bob */
#define ALICE 0x1
#define BOB   0x2

#define ALICE_SSRC_BASE 0x12345000
#define BOB_SSRC_BASE 0x87654000

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
static cryptoParams_t withoutX255 = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0};
static cryptoParams_t withX255 = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0};
cryptoParams_t *defaultCryptoAlgoSelection(void) {
	if (bctbx_key_agreement_algo_list()&BCTBX_ECDH_X25519) {
		return &withX255;
	}
	return &withoutX255;
}

static cryptoParams_t withoutX255noSAS = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,1};
static cryptoParams_t withX255noSAS = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,1};
cryptoParams_t *defaultCryptoAlgoSelectionNoSASValidation(void) {
	if (bctbx_key_agreement_algo_list()&BCTBX_ECDH_X25519) {
		return &withX255noSAS;
	}
	return &withoutX255noSAS;
}
johan's avatar
johan committed
98

99 100 101 102 103 104 105 106 107
static cryptoParams_t withoutX255resetSAS = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,2};
static cryptoParams_t withX255resetSAS = {{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,2};
cryptoParams_t *defaultCryptoAlgoSelectionResetSAS(void) {
	if (bctbx_key_agreement_algo_list()&BCTBX_ECDH_X25519) {
		return &withX255resetSAS;
	}
	return &withoutX255resetSAS;
}

johan's avatar
johan committed
108 109 110 111 112 113 114 115
/* static global settings and their reset function */
static uint64_t msSTC = 0; /* Simulation Time Coordinated start at 0 and increment it at each sleep, is in milliseconds */
static int loosePacketPercentage=0; /* simulate bd network condition: loose packet */
static uint64_t timeOutLimit=1000; /* in ms, time span given to perform the ZRTP exchange */
static float fadingLostAlice=0.0; /* try not to throw away too many packet in a row */
static float fadingLostBob=0.0; /* try not to throw away too many packet in a row */
static int totalPacketLost=0; /* set a limit to the total number of packet we can loose to enforce completion of the exchange */

116 117
/* when timeout is set to this specific value, negotiation is aborted but silently fails */
#define ABORT_NEGOTIATION_TIMEOUT 24
johan's avatar
johan committed
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
static void resetGlobalParams() {
	msSTC=0;
	totalPacketLost =0;
	loosePacketPercentage=0;
	timeOutLimit = 1000;
	fadingLostBob=0;
	fadingLostAlice=0;
}

/* time functions, we do not run a real time scenario, go for fast test instead */
static uint64_t getSimulatedTime() {
	return msSTC;
}
static void STC_sleep(int ms){
	msSTC +=ms;
}

/* routing messages */
static int sendData(void *clientData, const uint8_t *packetString, uint16_t packetLength) {
	/* get the client context */
	clientContext_t *clientContext = (clientContext_t *)clientData;

	/* manage loosy network simulation */
	if (loosePacketPercentage > 0) {
		/* make sure we cannot loose 10 packets in a row from the same sender */
		if ((totalPacketLost<10) && ((float)((rand()%100 )) < loosePacketPercentage-((clientContext->id == ALICE)?fadingLostAlice:fadingLostBob))) { /* randomly discard packets */
			//bzrtp_message("%d Loose %.8s from %s - LC %d\n", msSTC, packetString+16, (clientContext->id==ALICE?"Alice":"Bob"), totalPacketLost);

			if (clientContext->id == ALICE) {
				fadingLostAlice +=loosePacketPercentage/8;
			} else {
				fadingLostBob +=loosePacketPercentage/8;
			}
			return 0;
		}
		//bzrtp_message("%d Keep %.8s from %s - LC %d\n", msSTC, packetString+16, (clientContext->id==ALICE?"Alice":"Bob"), totalPacketLost);
	}
155
	//bzrtp_message("%ld %.8s from %s\n", msSTC, packetString+16, (clientContext->id==ALICE?"Alice":"Bob"));
johan's avatar
johan committed
156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172

	/* put the message in the message correct queue */
	if (clientContext->id == ALICE) { /* message sent by Alice, so put it in Bob's queue */
		fadingLostAlice = MAX(0,fadingLostAlice-loosePacketPercentage/2);
		memcpy(bobQueue[bobQueueIndex].packetString, packetString, packetLength);
		bobQueue[bobQueueIndex++].packetLength = packetLength;
	} else { /* Bob sent the message, put it in Alice's queue */
		fadingLostBob = MAX(0,fadingLostBob-loosePacketPercentage/2);
		memcpy(bobQueue[bobQueueIndex].packetString, packetString, packetLength);
		memcpy(aliceQueue[aliceQueueIndex].packetString, packetString, packetLength);
		aliceQueue[aliceQueueIndex++].packetLength = packetLength;
	}

	return 0;
}

/* get SAS and SRTP keys */
johan's avatar
johan committed
173
int getSAS(void *clientData, bzrtpSrtpSecrets_t *secrets, int32_t pvs) {
johan's avatar
johan committed
174 175 176 177 178
	/* get the client context */
	clientContext_t *clientContext = (clientContext_t *)clientData;

	/* store the secret struct */
	clientContext->secrets = secrets;
johan's avatar
johan committed
179 180
	/* and the PVS flag */
	clientContext->pvs = pvs;
johan's avatar
johan committed
181 182 183 184

	return 0;
}

johan's avatar
johan committed
185
int getMessage(void *clientData, const uint8_t level, const uint8_t message, const char *messageString) {
johan's avatar
johan committed
186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209
	/* get the client context */
	clientContext_t *clientContext = (clientContext_t *)clientData;
	if (level == BZRTP_MESSAGE_ERROR && message == BZRTP_MESSAGE_CACHEMISMATCH) {
		clientContext->haveCacheMismatch = 1;
	}
	return 0;
}

int computeExportedKeys(void *clientData, int zuid, uint8_t role) {
	size_t keyLength = 16;
	/* get the client context */
	clientContext_t *clientContext = (clientContext_t *)clientData;

	/* compute 2 exported keys with label initiator and responder */
	BC_ASSERT_EQUAL(bzrtp_exportKey(clientContext->bzrtpContext,  ((role==BZRTP_ROLE_RESPONDER)?"ResponderKey":"InitiatorKey"), 12, clientContext->sendExportedKey, &keyLength), 0, int, "%x");
	BC_ASSERT_EQUAL(keyLength, 16, int, "%d"); /* any hash available in the config shall be able to produce a 16 bytes key */
	keyLength = 16;
	BC_ASSERT_EQUAL(bzrtp_exportKey(clientContext->bzrtpContext,  ((role==BZRTP_ROLE_INITIATOR)?"ResponderKey":"InitiatorKey"), 12, clientContext->recvExportedKey, &keyLength), 0, int, "%x");
	BC_ASSERT_EQUAL(keyLength, 16, int, "%d"); /* any hash available in the config shall be able to produce a 16 bytes key */

	return 0;
}

static int setUpClientContext(clientContext_t *clientContext, uint8_t clientID, uint32_t SSRC, void *zidCache, char *selfURI, char *peerURI, cryptoParams_t *cryptoParams) {
johan's avatar
johan committed
210 211 212 213 214
	int retval;
	bzrtpCallbacks_t cbs={0} ;

	/* set Id */
	clientContext->id = clientID;
johan's avatar
johan committed
215 216
	clientContext->pvs=0;
	clientContext->haveCacheMismatch=0;
johan's avatar
johan committed
217 218 219 220 221 222 223 224 225

	/* create zrtp context */
	clientContext->bzrtpContext = bzrtp_createBzrtpContext();
	if (clientContext->bzrtpContext==NULL) {
		bzrtp_message("ERROR: can't create bzrtp context, id client is %d", clientID);
		return -1;
	}

	/* check cache */
johan's avatar
johan committed
226 227 228 229 230 231 232 233 234
	if (zidCache != NULL) {
#ifdef ZIDCACHE_ENABLED
	retval = bzrtp_setZIDCache(clientContext->bzrtpContext, zidCache, selfURI, peerURI);
	if (retval != 0 && retval != BZRTP_CACHE_SETUP) { /* return value is BZRTP_CACHE_SETUP if the cache is populated by this call */
		bzrtp_message("ERROR: bzrtp_setZIDCache %0x, client id is %d\n", retval, clientID);
		return -2;
	}
#else
		bzrtp_message("ERROR: asking for cache but not enabled at compile time\n");
johan's avatar
johan committed
235
		return -2;
johan's avatar
johan committed
236
#endif
johan's avatar
johan committed
237 238 239 240 241
	}

	/* assign callbacks */
	cbs.bzrtp_sendData=sendData;
	cbs.bzrtp_startSrtpSession=(int (*)(void *,const bzrtpSrtpSecrets_t *,int32_t) )getSAS;
johan's avatar
johan committed
242 243 244
	cbs.bzrtp_statusMessage=getMessage;
	cbs.bzrtp_messageLevel = BZRTP_MESSAGE_ERROR;
	cbs.bzrtp_contextReadyForExportedKeys = computeExportedKeys;
johan's avatar
johan committed
245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353
	if ((retval = bzrtp_setCallbacks(clientContext->bzrtpContext, &cbs))!=0) {
		bzrtp_message("ERROR: bzrtp_setCallbacks returned %0x, client id is %d\n", retval, clientID);
		return -3;
	}

	/* set crypto params */
	if (cryptoParams != NULL) {
		bzrtp_setSupportedCryptoTypes(clientContext->bzrtpContext, ZRTP_HASH_TYPE, cryptoParams->hash, cryptoParams->hashNb);
		bzrtp_setSupportedCryptoTypes(clientContext->bzrtpContext, ZRTP_CIPHERBLOCK_TYPE, cryptoParams->cipher, cryptoParams->cipherNb);
		bzrtp_setSupportedCryptoTypes(clientContext->bzrtpContext, ZRTP_KEYAGREEMENT_TYPE, cryptoParams->keyAgreement, cryptoParams->keyAgreementNb);
		bzrtp_setSupportedCryptoTypes(clientContext->bzrtpContext, ZRTP_AUTHTAG_TYPE, cryptoParams->authtag, cryptoParams->authtagNb);
		bzrtp_setSupportedCryptoTypes(clientContext->bzrtpContext, ZRTP_SAS_TYPE, cryptoParams->sas, cryptoParams->sasNb);
	}

	/* init the first channel */
	bzrtp_initBzrtpContext(clientContext->bzrtpContext, SSRC);
	if ((retval = bzrtp_setClientData(clientContext->bzrtpContext, SSRC, (void *)clientContext))!=0) {
		bzrtp_message("ERROR: bzrtp_setClientData returned %0x, client id is %d\n", retval, clientID);
		return -4;
	}

	return 0;
}

static int addChannel(clientContext_t *clientContext, uint32_t SSRC) {
	int retval=0;

	/* add channel */
	if ((retval = bzrtp_addChannel(clientContext->bzrtpContext, SSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_addChannel returned %0x, client id is %d\n", retval, clientContext->id);
		return -1;
	}

	/* associated client data(give the same than for first channel) */
	if ((retval = bzrtp_setClientData(clientContext->bzrtpContext, SSRC, (void *)clientContext))!=0) {
		bzrtp_message("ERROR: bzrtp_setClientData on secondary channel returned %0x, client id is %d\n", retval, clientContext->id);
		return -2;
	}

	/* start the channel */
	if ((retval = bzrtp_startChannelEngine(clientContext->bzrtpContext, SSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_startChannelEngine on secondary channel returned %0x, client id is %d SSRC is %d\n", retval, clientContext->id,SSRC);
		return -3;
	}

	return 0;
}

/* are all a and b field the same? Check Sas(optionnaly as it is not provided for secondary channel) and srtp keys and choosen algo*/

static int compareSecrets(bzrtpSrtpSecrets_t *a, bzrtpSrtpSecrets_t* b, uint8_t mainChannel) {
	if (mainChannel==TRUE) {
		if (strcmp(a->sas,b->sas)!=0) {
			return -1;
		}
	}

	if (mainChannel == TRUE) {
		if ((a->authTagAlgo!=b->authTagAlgo)
		  || a->hashAlgo!=b->hashAlgo
		  || a->keyAgreementAlgo!=b->keyAgreementAlgo
		  || a->sasAlgo!=b->sasAlgo
		  || a->cipherAlgo!=b->cipherAlgo) {
			return -2;
		}
	} else {
		if ((a->authTagAlgo!=b->authTagAlgo)
		  || a->hashAlgo!=b->hashAlgo
		  || a->keyAgreementAlgo!=b->keyAgreementAlgo
		  || a->cipherAlgo!=b->cipherAlgo) {
			return -2;
		}
	}


	if (a->selfSrtpKeyLength==0 || b->selfSrtpKeyLength==0
	 || a->selfSrtpSaltLength==0 || b->selfSrtpSaltLength==0
	 || a->peerSrtpKeyLength==0 || b->peerSrtpKeyLength==0
	 || a->peerSrtpSaltLength==0 || b->peerSrtpSaltLength==0) {
		return -3;
	}

	if (a->selfSrtpKeyLength != b->peerSrtpKeyLength
	 || a->selfSrtpSaltLength != b->peerSrtpSaltLength
	 || a->peerSrtpKeyLength != b->selfSrtpKeyLength
	 || a->peerSrtpSaltLength != b->selfSrtpSaltLength) {
		return -4;
	}

	if (memcmp (a->selfSrtpKey, b->peerSrtpKey, b->peerSrtpKeyLength) != 0
	 || memcmp (a->selfSrtpSalt, b->peerSrtpSalt, b->peerSrtpSaltLength) != 0
	 || memcmp (a->peerSrtpKey, b->selfSrtpKey, b->selfSrtpKeyLength) != 0
	 || memcmp (a->peerSrtpSalt, b->selfSrtpSalt, b->selfSrtpSaltLength) != 0) {
		return -5;
	}

	return 0;
}

/* compare algo sets */
static int compareAlgoList(bzrtpSrtpSecrets_t *secrets, cryptoParams_t *cryptoParams) {
	if (secrets->authTagAlgo != cryptoParams->authtag[0]) return -1;
	if (secrets->hashAlgo != cryptoParams->hash[0]) return -2;
	if (secrets->cipherAlgo != cryptoParams->cipher[0]) return -3;
	if (secrets->keyAgreementAlgo != cryptoParams->keyAgreement[0]) return -4;
	if (secrets->sasAlgo != cryptoParams->sas[0]) return -5;
	return 0;
}

johan's avatar
johan committed
354 355 356 357
/* defines return values bit flags(on 16 bits, use 32 to return status for Bob(16 MSB) and Alice(16 LSB)) */
#define RET_CACHE_MISMATCH 0x0001


358
uint32_t multichannel_exchange_pvs_params(cryptoParams_t *aliceCryptoParams, cryptoParams_t *bobCryptoParams, cryptoParams_t *expectedCryptoParams, void *aliceCache, char *aliceURI, void *bobCache, char *bobURI, uint8_t checkPVS, uint8_t expectedAlicePVS, uint8_t expectedBobPVS) {
johan's avatar
johan committed
359 360 361 362 363 364 365

	int retval,channelNumber;
	clientContext_t Alice,Bob;
	uint64_t initialTime=0;
	uint64_t lastPacketSentTime=0;
	uint32_t aliceSSRC = ALICE_SSRC_BASE;
	uint32_t bobSSRC = BOB_SSRC_BASE;
johan's avatar
johan committed
366
	uint32_t ret=0;
johan's avatar
johan committed
367 368

	/*** Create the main channel */
johan's avatar
johan committed
369
	if ((retval=setUpClientContext(&Alice, ALICE, aliceSSRC, aliceCache, aliceURI, bobURI, aliceCryptoParams))!=0) {
johan's avatar
johan committed
370 371
		bzrtp_message("ERROR: can't init setup client context id %d\n", ALICE);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
johan's avatar
johan committed
372
		return retval;
johan's avatar
johan committed
373 374
	}

johan's avatar
johan committed
375
	if ((retval=setUpClientContext(&Bob, BOB, bobSSRC, bobCache, bobURI, aliceURI, bobCryptoParams))!=0) {
johan's avatar
johan committed
376 377
		bzrtp_message("ERROR: can't init setup client context id %d\n", BOB);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
johan's avatar
johan committed
378
		return retval;
johan's avatar
johan committed
379 380
	}

381 382 383 384 385 386 387 388 389 390
	/* start the ZRTP engine(it will send a hello packet )*/
	if ((retval = bzrtp_startChannelEngine(Alice.bzrtpContext, aliceSSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_startChannelEngine returned %0x, client id is %d SSRC is %d\n", retval, ALICE, aliceSSRC);
		return retval;
	}
	if ((retval = bzrtp_startChannelEngine(Bob.bzrtpContext, bobSSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_startChannelEngine returned %0x, client id is %d SSRC is %d\n", retval, BOB, bobSSRC);
		return retval;
	}

johan's avatar
johan committed
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412
	initialTime = getSimulatedTime();
	while ((bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC)!= BZRTP_CHANNEL_SECURE || bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC)!= BZRTP_CHANNEL_SECURE) && (getSimulatedTime()-initialTime<timeOutLimit)){
		int i;
		/* check the message queue */
		for (i=0; i<aliceQueueIndex; i++) {
			retval = bzrtp_processMessage(Alice.bzrtpContext, aliceSSRC, aliceQueue[i].packetString, aliceQueue[i].packetLength);
			//bzrtp_message("%d Alice processed a %.8s and returns %x\n", msSTC, (aliceQueue[i].packetString)+16, retval);
			memset(aliceQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
			lastPacketSentTime=getSimulatedTime();
		}
		aliceQueueIndex = 0;

		for (i=0; i<bobQueueIndex; i++) {
			retval = bzrtp_processMessage(Bob.bzrtpContext, bobSSRC, bobQueue[i].packetString, bobQueue[i].packetLength);
			//bzrtp_message("%d Bob processed a %.8s and returns %x\n",msSTC, (bobQueue[i].packetString)+16, retval);
			memset(bobQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
			lastPacketSentTime=getSimulatedTime();
		}
		bobQueueIndex = 0;


		/* send the actual time to the zrtpContext */
johan's avatar
johan committed
413 414
		retval = bzrtp_iterate(Alice.bzrtpContext, aliceSSRC, getSimulatedTime());
		retval = bzrtp_iterate(Bob.bzrtpContext, bobSSRC, getSimulatedTime());
johan's avatar
johan committed
415 416 417 418 419 420 421 422 423 424 425 426

		/* sleep for 10 ms */
		STC_sleep(10);

		/* check if we shall try to reset re-emission timers */
		if (getSimulatedTime()-lastPacketSentTime > 1250 ) { /*higher re-emission timeout is 1200ms */
			retval = bzrtp_resetRetransmissionTimer(Alice.bzrtpContext, aliceSSRC);
			retval +=bzrtp_resetRetransmissionTimer(Bob.bzrtpContext, bobSSRC);
			lastPacketSentTime=getSimulatedTime();

		}
	}
427 428 429 430 431 432 433 434 435 436 437 438 439 440

	/* when timeOutLimit is set to this specific value, our intention is to start a negotiation but not to finish it, so just return without errors */
	if (timeOutLimit == ABORT_NEGOTIATION_TIMEOUT) {
		/*** Destroy Contexts ***/
		while (bzrtp_destroyBzrtpContext(Alice.bzrtpContext, aliceSSRC)>0 && aliceSSRC>=ALICE_SSRC_BASE) {
			aliceSSRC--;
		}
		while (bzrtp_destroyBzrtpContext(Bob.bzrtpContext, bobSSRC)>0 && bobSSRC>=BOB_SSRC_BASE) {
			bobSSRC--;
		}

		return ret;
	}

johan's avatar
johan committed
441 442 443
	if ((retval=bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC))!=BZRTP_CHANNEL_SECURE) {
		bzrtp_message("Fail Alice on channel1 loss rate is %d", loosePacketPercentage);
		BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
johan's avatar
johan committed
444
		return retval;
johan's avatar
johan committed
445 446 447 448
	}
	if ((retval=bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC))!=BZRTP_CHANNEL_SECURE) {
		bzrtp_message("Fail Bob on channel1 loss rate is %d", loosePacketPercentage);
		BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
johan's avatar
johan committed
449
		return retval;
johan's avatar
johan committed
450 451 452 453 454 455
	}

	bzrtp_message("ZRTP algo used during negotiation: Cipher: %s - KeyAgreement: %s - Hash: %s - AuthTag: %s - Sas Rendering: %s\n", bzrtp_cipher_toString(Alice.secrets->cipherAlgo), bzrtp_keyAgreement_toString(Alice.secrets->keyAgreementAlgo), bzrtp_hash_toString(Alice.secrets->hashAlgo), bzrtp_authtag_toString(Alice.secrets->authTagAlgo), bzrtp_sas_toString(Alice.secrets->sasAlgo));

	if ((retval=compareSecrets(Alice.secrets, Bob.secrets, TRUE))!=0) {
		BC_ASSERT_EQUAL(retval, 0, int, "%d");
456 457 458 459
		if (aliceCache != NULL && bobCache != NULL) {
			bzrtp_resetSASVerified(Alice.bzrtpContext);
			bzrtp_resetSASVerified(Bob.bzrtpContext);
		}
johan's avatar
johan committed
460 461 462
		return retval;
	} else { /* SAS comparison is Ok, if we have a cache, confirm it */
		if (aliceCache != NULL && bobCache != NULL) {
463
			/* Confirm only when the cryptoParam->dontValidateSASflag is not present or set to 0 */
464 465
			if (aliceCryptoParams==NULL || aliceCryptoParams->dontValidateSASflag == 0) {
				bzrtp_SASVerified(Alice.bzrtpContext);
466 467
			} else if (aliceCryptoParams!=NULL && aliceCryptoParams->dontValidateSASflag == 2) { /* if flag is set to 2 reset the SAS */
				bzrtp_resetSASVerified(Alice.bzrtpContext);
468
			}
469
			/* Confirm only when the cryptoParam->dontValidateSASflag is not present or set to 0 */
470 471
			if (bobCryptoParams==NULL || bobCryptoParams->dontValidateSASflag == 0) {
				bzrtp_SASVerified(Bob.bzrtpContext);
472 473
			} else if (bobCryptoParams!=NULL && bobCryptoParams->dontValidateSASflag == 2) { /* if flag is set to 2 reset the SAS */
				bzrtp_resetSASVerified(Bob.bzrtpContext);
474
			}
475
			/* if flag is set to 1 just ignore the SAS validation */
johan's avatar
johan committed
476
		}
johan's avatar
johan committed
477 478
	}

479 480 481 482 483 484
	/* shall we check the PVS returned by the SAS callback? */
	if (checkPVS==TRUE) {
		BC_ASSERT_EQUAL(Alice.pvs, expectedAlicePVS, int, "%d");
		BC_ASSERT_EQUAL(Bob.pvs, expectedBobPVS, int, "%d");
	}

johan's avatar
johan committed
485
	/* if we have expected crypto param, check our result */
johan's avatar
johan committed
486 487 488 489
	if (expectedCryptoParams!=NULL) {
		BC_ASSERT_EQUAL(compareAlgoList(Alice.secrets,expectedCryptoParams), 0, int, "%d");
	}

johan's avatar
johan committed
490 491 492 493 494
	/* check exported keys */
	BC_ASSERT_EQUAL(memcmp(Alice.sendExportedKey, Bob.recvExportedKey, 16), 0, int, "%d");
	BC_ASSERT_EQUAL(memcmp(Alice.recvExportedKey, Bob.sendExportedKey, 16), 0, int, "%d");

	/* open as much channels as we can */
johan's avatar
johan committed
495 496 497 498 499 500 501 502 503
	for (channelNumber=2; channelNumber<=MAX_NUM_CHANNEL; channelNumber++) {
		/* increase SSRCs as they are used to identify a channel */
		aliceSSRC++;
		bobSSRC++;

		/* start a new channel */
		if ((retval=addChannel(&Alice, aliceSSRC))!=0) {
			bzrtp_message("ERROR: can't add a second channel to client context id %d\n", ALICE);
			BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
johan's avatar
johan committed
504
			return retval;
johan's avatar
johan committed
505 506 507 508 509
		}

		if ((retval=addChannel(&Bob, bobSSRC))!=0) {
			bzrtp_message("ERROR: can't add a second channel to client context id %d\n", ALICE);
			BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
johan's avatar
johan committed
510
			return retval;
johan's avatar
johan committed
511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533
		}

		initialTime = getSimulatedTime();
		while ((bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC)!= BZRTP_CHANNEL_SECURE || bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC)!= BZRTP_CHANNEL_SECURE) && (getSimulatedTime()-initialTime<timeOutLimit)){
			int i;
			/* check the message queue */
			for (i=0; i<aliceQueueIndex; i++) {
				retval = bzrtp_processMessage(Alice.bzrtpContext, aliceSSRC, aliceQueue[i].packetString, aliceQueue[i].packetLength);
				//bzrtp_message("%d Alice processed a %.8s and returns %x\n",msSTC, aliceQueue[i].packetString+16, retval);
				memset(aliceQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
				lastPacketSentTime=getSimulatedTime();
			}
			aliceQueueIndex = 0;

			for (i=0; i<bobQueueIndex; i++) {
				retval = bzrtp_processMessage(Bob.bzrtpContext, bobSSRC, bobQueue[i].packetString, bobQueue[i].packetLength);
				//bzrtp_message("%d Bob processed a %.8s and returns %x\n",msSTC, bobQueue[i].packetString+16, retval);
				memset(bobQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
				lastPacketSentTime=getSimulatedTime();
			}
			bobQueueIndex = 0;

			/* send the actual time to the zrtpContext */
johan's avatar
johan committed
534 535
			retval = bzrtp_iterate(Alice.bzrtpContext, aliceSSRC, getSimulatedTime());
			retval = bzrtp_iterate(Bob.bzrtpContext, bobSSRC, getSimulatedTime());
johan's avatar
johan committed
536 537 538 539 540 541 542 543 544 545 546 547 548 549

			/* sleep for 10 ms */
			STC_sleep(10);

			/* check if we shall try to reset re-emission timers */
			if (getSimulatedTime()-lastPacketSentTime > 1250 ) { /*higher re-emission timeout is 1200ms */
				retval = bzrtp_resetRetransmissionTimer(Alice.bzrtpContext, aliceSSRC);
				retval += bzrtp_resetRetransmissionTimer(Bob.bzrtpContext, bobSSRC);
				lastPacketSentTime=getSimulatedTime();
			}
		}
		if ((retval=bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC))!=BZRTP_CHANNEL_SECURE) {
			bzrtp_message("Fail Alice on channel2 loss rate is %d", loosePacketPercentage);
			BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
johan's avatar
johan committed
550
			return retval;
johan's avatar
johan committed
551 552 553 554
		}
		if ((retval=bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC))!=BZRTP_CHANNEL_SECURE) {
			bzrtp_message("Fail Bob on channel2 loss rate is %d", loosePacketPercentage);
			BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
johan's avatar
johan committed
555
			return retval;
johan's avatar
johan committed
556 557 558 559 560 561 562 563 564 565 566 567 568 569 570
		}
		bzrtp_message("Channel %d :ZRTP algo used during negotiation: Cipher: %s - KeyAgreement: %s - Hash: %s - AuthTag: %s - Sas Rendering: %s\n", channelNumber, bzrtp_cipher_toString(Alice.secrets->cipherAlgo), bzrtp_keyAgreement_toString(Alice.secrets->keyAgreementAlgo), bzrtp_hash_toString(Alice.secrets->hashAlgo), bzrtp_authtag_toString(Alice.secrets->authTagAlgo), bzrtp_sas_toString(Alice.secrets->sasAlgo));
		if ((retval=compareSecrets(Alice.secrets, Bob.secrets, FALSE))!=0) {
			BC_ASSERT_EQUAL(retval, 0, int, "%d");
		}
	}

	/*** Destroy Contexts ***/
	while (bzrtp_destroyBzrtpContext(Alice.bzrtpContext, aliceSSRC)>0 && aliceSSRC>=ALICE_SSRC_BASE) {
		aliceSSRC--;
	}
	while (bzrtp_destroyBzrtpContext(Bob.bzrtpContext, bobSSRC)>0 && bobSSRC>=BOB_SSRC_BASE) {
		bobSSRC--;
	}

johan's avatar
johan committed
571 572 573 574 575 576 577 578 579
	/** Compute return value **/
	if (Alice.haveCacheMismatch==1) {
		ret |= RET_CACHE_MISMATCH;
	}
	if (Bob.haveCacheMismatch==1) {
		ret |= RET_CACHE_MISMATCH<<16;
	}

	return ret;
johan's avatar
johan committed
580 581
}

582 583 584 585 586
uint32_t multichannel_exchange(cryptoParams_t *aliceCryptoParams, cryptoParams_t *bobCryptoParams, cryptoParams_t *expectedCryptoParams, void *aliceCache, char *aliceURI, void *bobCache, char *bobURI) {
	return multichannel_exchange_pvs_params(aliceCryptoParams, bobCryptoParams, expectedCryptoParams, aliceCache, aliceURI, bobCache, bobURI, FALSE, 0, 0);
}


Johan Pascal's avatar
Johan Pascal committed
587
static void test_cacheless_exchange(void) {
johan's avatar
johan committed
588 589 590 591 592 593 594 595
	cryptoParams_t *pattern;

	/* Reset Global Static settings */
	resetGlobalParams();

	/* Note: common algo selection is not tested here(this is done in some cryptoUtils tests)
	here we just perform an exchange with any final configuration avalaible and check it goes well */
	cryptoParams_t patterns[] = {
596 597 598 599 600
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
601 602 603 604 605
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

606 607 608 609 610
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
611 612 613 614 615
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

616 617 618 619 620
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
621 622 623 624 625
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH3k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

626 627 628 629 630
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
631 632 633 634 635
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_DH2k},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

636
		{{0},0,{0},0,{0},0,{0},0,{0},0,0}, /* this pattern will end the run because cipher nb is 0 */
johan's avatar
johan committed
637 638
		};

639 640 641 642 643 644 645
	/* serie tested only if ECDH is available */
	cryptoParams_t ecdh_patterns[] = {
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
646 647 648 649 650
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

651 652 653 654 655
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
656 657 658 659 660
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES1},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

661 662 663 664 665
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
666 667 668 669 670
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X448},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

671 672 673 674 675
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S256},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

Johan Pascal's avatar
Johan Pascal committed
676 677 678 679 680
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B32},1,{ZRTP_AUTHTAG_HS80},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS32},1,0},
		{{ZRTP_CIPHER_AES3},1,{ZRTP_HASH_S384},1,{ZRTP_KEYAGREEMENT_X255},1,{ZRTP_SAS_B256},1,{ZRTP_AUTHTAG_HS80},1,0},

681 682 683
		{{0},0,{0},0,{0},0,{0},0,{0},0,0}, /* this pattern will end the run because cipher nb is 0 */
	};

johan's avatar
johan committed
684 685 686
	pattern = &patterns[0]; /* pattern is a pointer to current pattern */

	while (pattern->cipherNb!=0) {
johan's avatar
johan committed
687
		BC_ASSERT_EQUAL(multichannel_exchange(pattern, pattern, pattern, NULL, NULL, NULL, NULL), 0, int, "%x");
johan's avatar
johan committed
688 689 690
		pattern++; /* point to next row in the array of patterns */
	}

691 692 693
	/* with ECDH agreement types if available */
	if (bctbx_key_agreement_algo_list()&BCTBX_ECDH_X25519) {
		pattern = &ecdh_patterns[0]; /* pattern is a pointer to current pattern */
Johan Pascal's avatar
Johan Pascal committed
694 695 696 697
		while (pattern->cipherNb!=0) {
			BC_ASSERT_EQUAL(multichannel_exchange(pattern, pattern, pattern, NULL, NULL, NULL, NULL), 0, int, "%x");
			pattern++; /* point to next row in the array of patterns */
		}
698 699 700
	}

	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), NULL, NULL, NULL, NULL), 0, int, "%x");
johan's avatar
johan committed
701 702
}

Johan Pascal's avatar
Johan Pascal committed
703
static void test_loosy_network(void) {
johan's avatar
johan committed
704 705
	int i,j;
	resetGlobalParams();
Ghislain MARY's avatar
Ghislain MARY committed
706
	srand((unsigned int)time(NULL));
johan's avatar
johan committed
707 708 709 710 711 712 713

	/* run through all the configs 10 times to maximise chance to spot a random error based on a specific packet lost sequence */
	for (j=0; j<10; j++) {
		for (i=1; i<60; i+=1) {
			resetGlobalParams();
			timeOutLimit =100000; //outrageous time limit just to be sure to complete, not run in real time anyway
			loosePacketPercentage=i;
714
			BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), NULL, NULL, NULL, NULL), 0, int, "%x");
johan's avatar
johan committed
715 716 717 718
		}
	}
}

Johan Pascal's avatar
Johan Pascal committed
719
static void test_cache_enabled_exchange(void) {
johan's avatar
johan committed
720 721 722 723 724 725
#ifdef ZIDCACHE_ENABLED
	sqlite3 *aliceDB=NULL;
	sqlite3 *bobDB=NULL;
	uint8_t selfZIDalice[12];
	uint8_t selfZIDbob[12];
	int zuidAlice=0,zuidBob=0;
726
	const char *colNames[] = {"rs1", "rs2", "pvs"};
johan's avatar
johan committed
727 728 729 730 731 732
	uint8_t *colValuesAlice[3];
	size_t colLengthAlice[3];
	uint8_t *colValuesBob[3];
	size_t colLengthBob[3];
	int i;

733 734
	resetGlobalParams();

johan's avatar
johan committed
735 736 737 738 739 740 741
	/* create tempory DB files, just try to clean them from dir before, just in case  */
	remove("tmpZIDAlice_simpleCache.sqlite");
	remove("tmpZIDBob_simpleCache.sqlite");
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDAlice_simpleCache.sqlite"), &aliceDB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob_simpleCache.sqlite"), &bobDB);

	/* make a first exchange */
742
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), 0, int, "%x");
johan's avatar
johan committed
743 744 745 746 747 748

	/* after the first exchange we shall have both pvs values at 1 and both rs1 identical and rs2 null, retrieve them from cache and check it */
	/* first get each ZIDs, note give NULL as RNG context may lead to segfault in case of error(caches were not created correctly)*/
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)aliceDB, "alice@sip.linphone.org", selfZIDalice, NULL), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)bobDB, "bob@sip.linphone.org", selfZIDbob, NULL), 0, int, "%x");
	/* then get the matching zuid in cache */
749 750
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)aliceDB, "alice@sip.linphone.org", "bob@sip.linphone.org", selfZIDbob, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidAlice), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)bobDB, "bob@sip.linphone.org", "alice@sip.linphone.org", selfZIDalice, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidBob), 0, int, "%x");
johan's avatar
johan committed
751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769
	/* retrieve the values */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	/* and compare to expected */
	/* rs1 is set and they are both the same */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	/* rs2 is unset(NULL) */
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	/* pvs is equal to 1 */
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

Johan Pascal's avatar
Johan Pascal committed
770 771 772 773 774 775
	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		colValuesAlice[i]=NULL;
	}

johan's avatar
johan committed
776
	/* make a second exchange */
777
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), 0, int, "%x");
johan's avatar
johan committed
778 779 780 781 782 783 784
	/* read new values in cache, ZIDs and zuids must be identical, read alice first to be able to check rs2 with old rs1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	/* check what is now rs2 is the old rs1 */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[0], 32), 0, int, "%d"); /* colValuesBob, still old values from before the second exchange */
Johan Pascal's avatar
Johan Pascal committed
785 786 787 788 789 790

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesBob[i]);
		colValuesBob[i]=NULL;
	}
johan's avatar
johan committed
791 792 793 794 795 796 797 798 799 800 801 802 803 804 805
	/* so read bob updated values and compare rs1, rs2 and check pvs is still at 1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[1], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		free(colValuesBob[i]);
	}
806 807
	sqlite3_close(aliceDB);
	sqlite3_close(bobDB);
johan's avatar
johan committed
808 809 810 811 812 813 814 815 816

	/* clean temporary files */
	remove("tmpZIDAlice_simpleCache.sqlite");
	remove("tmpZIDBob_simpleCache.sqlite");

#endif /* ZIDCACHE_ENABLED */
}

/* first perform an exchange to establish a correct shared cache, then modify one of them and perform an other exchange to check we have a cache mismatch warning */
Johan Pascal's avatar
Johan Pascal committed
817
static void test_cache_mismatch_exchange(void) {
johan's avatar
johan committed
818 819 820 821 822 823
#ifdef ZIDCACHE_ENABLED
	sqlite3 *aliceDB=NULL;
	sqlite3 *bobDB=NULL;
	uint8_t selfZIDalice[12];
	uint8_t selfZIDbob[12];
	int zuidAlice=0,zuidBob=0;
824
	const char *colNames[] = {"rs1", "rs2", "pvs"};
johan's avatar
johan committed
825 826 827 828 829 830
	uint8_t *colValuesAlice[3];
	size_t colLengthAlice[3];
	uint8_t *colValuesBob[3];
	size_t colLengthBob[3];
	int i;

831 832
	resetGlobalParams();

johan's avatar
johan committed
833 834 835 836 837 838 839
	/* create tempory DB files, just try to clean them from dir before, just in case  */
	remove("tmpZIDAlice_cacheMismtach.sqlite");
	remove("tmpZIDBob_cacheMismatch.sqlite");
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDAlice_cacheMismatch.sqlite"), &aliceDB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob_cacheMismatch.sqlite"), &bobDB);

	/* make a first exchange */
840
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), 0, int, "%x");
johan's avatar
johan committed
841 842 843 844 845 846

	/* after the first exchange we shall have both pvs values at 1 and both rs1 identical and rs2 null, retrieve them from cache and check it */
	/* first get each ZIDs, note give NULL as RNG context may lead to segfault in case of error(caches were not created correctly)*/
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)aliceDB, "alice@sip.linphone.org", selfZIDalice, NULL), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)bobDB, "bob@sip.linphone.org", selfZIDbob, NULL), 0, int, "%x");
	/* then get the matching zuid in cache */
847 848
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)aliceDB, "alice@sip.linphone.org", "bob@sip.linphone.org", selfZIDbob, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidAlice), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)bobDB, "bob@sip.linphone.org", "alice@sip.linphone.org", selfZIDalice, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidBob), 0, int, "%x");
johan's avatar
johan committed
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871
	/* retrieve the values */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	/* and compare to expected */
	/* rs1 is set and they are both the same */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	/* rs2 is unset(NULL) */
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	/* pvs is equal to 1 */
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

	/* Modify Alice cache rs1 first byte value, it will cause a cache mismatch at next exchange */
	colValuesAlice[0][0] += 1;
	BC_ASSERT_EQUAL(bzrtp_cache_write((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 1), 0, int, "%x");

Johan Pascal's avatar
Johan Pascal committed
872 873 874 875 876 877 878 879 880
	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		colValuesAlice[i]=NULL;
		free(colValuesBob[i]);
		colValuesBob[i]=NULL;
	}

	/* make a third exchange : we have a cache mismatch(on Bob side only), wich means rs1 will not be backed up in rs2 which shall be NULL again */
johan's avatar
johan committed
881 882
	/* make a second exchange : we have a cache mismatch(both on Bob and Alice side), wich means rs1 will not be backed up in rs2 which shall be NULL again */
	/* rs1 will be in sync has the SAS comparison will succeed and pvs will be set to 1*/
883
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), RET_CACHE_MISMATCH<<16|RET_CACHE_MISMATCH, int, "%x");
johan's avatar
johan committed
884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906

	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");

	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

	/* Delete Alice cache rs1 first byte value, it will cause a cache mismatch at next exchange but only on Bob's side as Alice will not expect any valid cache */
	free(colValuesAlice[0]);
	colValuesAlice[0] = NULL;
	colLengthAlice[0] = 0;
	colValuesAlice[2][0] = 0; /* reset pvs to 0 */
	BC_ASSERT_EQUAL(bzrtp_cache_write((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");

Johan Pascal's avatar
Johan Pascal committed
907 908 909 910 911 912 913 914
	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		colValuesAlice[i]=NULL;
		free(colValuesBob[i]);
		colValuesBob[i]=NULL;
	}

johan's avatar
johan committed
915 916
	/* make a third exchange : we have a cache mismatch(on Bob side only), wich means rs1 will not be backed up in rs2 which shall be NULL again */
	/* rs1 will be in sync has the SAS comparison will succeed and pvs will be set to 1*/
917
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), RET_CACHE_MISMATCH<<16, int, "%x");
johan's avatar
johan committed
918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937

	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");

	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		free(colValuesBob[i]);
	}
938 939
	sqlite3_close(aliceDB);
	sqlite3_close(bobDB);
johan's avatar
johan committed
940 941 942 943 944 945 946

	/* clean temporary files */
	remove("tmpZIDAlice_cacheMismatch.sqlite");
	remove("tmpZIDBob_cacheMismatch.sqlite");

#endif /* ZIDCACHE_ENABLED */
}
947

Johan Pascal's avatar
Johan Pascal committed
948
static void test_cache_sas_not_confirmed(void) {
949 950 951 952 953 954
#ifdef ZIDCACHE_ENABLED
	sqlite3 *aliceDB=NULL;
	sqlite3 *bobDB=NULL;
	uint8_t selfZIDalice[12];
	uint8_t selfZIDbob[12];
	int zuidAlice=0,zuidBob=0;
955
	const char *colNames[] = {"rs1", "rs2", "pvs"};
956 957 958 959 960 961
	uint8_t *colValuesAlice[3];
	size_t colLengthAlice[3];
	uint8_t *colValuesBob[3];
	size_t colLengthBob[3];
	int i;

962 963
	resetGlobalParams();

Johan Pascal's avatar
Johan Pascal committed
964 965 966 967 968 969
	/* init columns values pointers */
	for (i=0; i<3; i++) {
		colValuesAlice[i] = NULL;
		colValuesBob[i] = NULL;
	}

970 971 972 973 974 975 976
	/* create tempory DB files, just try to clean them from dir before, just in case  */
	remove("tmpZIDAlice_simpleCache.sqlite");
	remove("tmpZIDBob_simpleCache.sqlite");
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDAlice_simpleCache.sqlite"), &aliceDB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob_simpleCache.sqlite"), &bobDB);

	/* make a first exchange, Alice is instructed to not validate the SAS */
977
	BC_ASSERT_EQUAL(multichannel_exchange_pvs_params(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org", TRUE, 0, 0), 0, int, "%x");
978 979 980 981 982 983

	/* after the first exchange we shall have alice pvs at 0 and bob at 1 and both rs1 identical and rs2 null, retrieve them from cache and check it */
	/* first get each ZIDs, note give NULL as RNG context may lead to segfault in case of error(caches were not created correctly)*/
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)aliceDB, "alice@sip.linphone.org", selfZIDalice, NULL), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)bobDB, "bob@sip.linphone.org", selfZIDbob, NULL), 0, int, "%x");
	/* then get the matching zuid in cache */
984 985
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)aliceDB, "alice@sip.linphone.org", "bob@sip.linphone.org", selfZIDbob, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidAlice), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)bobDB, "bob@sip.linphone.org", "alice@sip.linphone.org", selfZIDalice, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidBob), 0, int, "%x");
986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003
	/* retrieve the values */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	/* and compare to expected */
	/* rs1 is set and they are both the same */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	/* rs2 is unset(NULL) */
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	/* pvs is equal to 0 for Alice(actually NULL, so length is 0 and has no value which is considered 0 by the getPeerSecrets function) and 1 for Bob */
	BC_ASSERT_EQUAL(colLengthAlice[2], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

Johan Pascal's avatar
Johan Pascal committed
1004 1005 1006 1007 1008 1009
	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		colValuesAlice[i] = NULL;
	}

1010 1011
	/* make a second exchange, the PVS flag returned by both side shall be 0 as Alice did not validate hers on previous exchange */
	/* but let them both validate this one */
1012
	BC_ASSERT_EQUAL(multichannel_exchange_pvs_params(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org", TRUE, 0, 0), 0, int, "%x");
1013 1014 1015 1016 1017 1018 1019
	/* read new values in cache, ZIDs and zuids must be identical, read alice first to be able to check rs2 with old rs1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	/* check what is now rs2 is the old rs1 */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[0], 32), 0, int, "%d"); /* colValuesBob, still old values from before the second exchange */
Johan Pascal's avatar
Johan Pascal committed
1020 1021 1022 1023 1024 1025 1026

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesBob[i]);
		colValuesBob[i] = NULL;
	}

1027 1028 1029 1030 1031 1032 1033 1034 1035 1036
	/* so read bob updated values and compare rs1, rs2 and check pvs is at 1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[1], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

Johan Pascal's avatar
Johan Pascal committed
1037 1038 1039 1040 1041 1042
	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		colValuesAlice[i] = NULL;
	}

1043
	/* make a third exchange, the PVS flag returned by both side shall be 1 */
1044
	BC_ASSERT_EQUAL(multichannel_exchange_pvs_params(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org", TRUE, 1, 1), 0, int, "%x");
1045 1046 1047 1048 1049 1050 1051
	/* read new values in cache, ZIDs and zuids must be identical, read alice first to be able to check rs2 with old rs1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	/* check what is now rs2 is the old rs1 */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[0], 32), 0, int, "%d"); /* colValuesBob, still old values from before the second exchange */
Johan Pascal's avatar
Johan Pascal committed
1052 1053 1054 1055 1056 1057 1058

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesBob[i]);
		colValuesBob[i] = NULL;
	}
	/* so read bob updated values and compare rs1, rs2 and check pvs is at 1 */
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
	/* so read bob updated values and compare rs1, rs2 and check pvs is still at 1 */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[1], colValuesBob[1], 32), 0, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		free(colValuesBob[i]);
	}
	sqlite3_close(aliceDB);
	sqlite3_close(bobDB);

	/* clean temporary files */
	remove("tmpZIDAlice_simpleCache.sqlite");
	remove("tmpZIDBob_simpleCache.sqlite");

#endif /* ZIDCACHE_ENABLED */
}
Johan Pascal's avatar
Johan Pascal committed
1083

1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250
static int test_auxiliary_secret_params(uint8_t *aliceAuxSecret, size_t aliceAuxSecretLength, uint8_t *bobAuxSecret, size_t bobAuxSecretLength, uint8_t expectedAuxSecretMismatch, uint8_t badTimingFlag) {
	int retval;
	clientContext_t Alice,Bob;
	uint64_t initialTime=0;
	uint64_t lastPacketSentTime=0;
	uint32_t aliceSSRC = ALICE_SSRC_BASE;
	uint32_t bobSSRC = BOB_SSRC_BASE;
	uint8_t setAuxSecretFlag=0; // switch to 1 once we've set the aux secret

	/*** Create the main channel */
	if ((retval=setUpClientContext(&Alice, ALICE, aliceSSRC, NULL, NULL, NULL, NULL))!=0) {
		bzrtp_message("ERROR: can't init setup client context id %d\n", ALICE);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
		return -1;
	}

	if ((retval=setUpClientContext(&Bob, BOB, bobSSRC, NULL, NULL, NULL, NULL))!=0) {
		bzrtp_message("ERROR: can't init setup client context id %d\n", BOB);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
		return -1;
	}

	/*** Setup a transient auxiliary secret ***/
	if (badTimingFlag==0) {
		setAuxSecretFlag=1;
		if (aliceAuxSecret != NULL) {
			if ((retval = bzrtp_setAuxiliarySharedSecret(Alice.bzrtpContext, aliceAuxSecret, aliceAuxSecretLength))!=0) {
				bzrtp_message("ERROR: can't set Auxiliary shared secret. id is %d\n", ALICE);
				BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
				return -1;
			}
		}

		if (bobAuxSecret != NULL) {
			if ((retval = bzrtp_setAuxiliarySharedSecret(Bob.bzrtpContext, bobAuxSecret, bobAuxSecretLength))!=0) {
				bzrtp_message("ERROR: can't set Auxiliary shared secret. id is %d\n", BOB);
				BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
				return -1;
			}
		}
	}

	/* start the ZRTP engine(it will send a hello packet )*/
	if ((retval = bzrtp_startChannelEngine(Alice.bzrtpContext, aliceSSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_startChannelEngine returned %0x, client id is %d SSRC is %d\n", retval, ALICE, aliceSSRC);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
		return -1;
	}
	if ((retval = bzrtp_startChannelEngine(Bob.bzrtpContext, bobSSRC))!=0) {
		bzrtp_message("ERROR: bzrtp_startChannelEngine returned %0x, client id is %d SSRC is %d\n", retval, BOB, bobSSRC);
		BC_ASSERT_EQUAL(retval, 0, uint32_t, "0x%08x");
		return -1;
	}

	initialTime = getSimulatedTime();

	while ((bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC)!= BZRTP_CHANNEL_SECURE || bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC)!= BZRTP_CHANNEL_SECURE) && (getSimulatedTime()-initialTime<timeOutLimit)){
		int i;
		/* check the message queue */
		for (i=0; i<aliceQueueIndex; i++) {
			retval = bzrtp_processMessage(Alice.bzrtpContext, aliceSSRC, aliceQueue[i].packetString, aliceQueue[i].packetLength);
			//bzrtp_message("%ld Alice processed a %.8s and returns %x\n", msSTC, (aliceQueue[i].packetString)+16, retval);
			memset(aliceQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
			lastPacketSentTime=getSimulatedTime();
		}
		aliceQueueIndex = 0;

		for (i=0; i<bobQueueIndex; i++) {
			retval = bzrtp_processMessage(Bob.bzrtpContext, bobSSRC, bobQueue[i].packetString, bobQueue[i].packetLength);
			//bzrtp_message("%ld Bob processed a %.8s and returns %x\n",msSTC, (bobQueue[i].packetString)+16, retval);
			memset(bobQueue[i].packetString, 0, MAX_PACKET_LENGTH); /* destroy the packet after sending it to the ZRTP engine */
			lastPacketSentTime=getSimulatedTime();
		}
		bobQueueIndex = 0;


		/* send the actual time to the zrtpContext */
		retval = bzrtp_iterate(Alice.bzrtpContext, aliceSSRC, getSimulatedTime());
		retval = bzrtp_iterate(Bob.bzrtpContext, bobSSRC, getSimulatedTime());

		/* sleep for 10 ms */
		STC_sleep(10);

		/* check if we shall try to reset re-emission timers */
		if (getSimulatedTime()-lastPacketSentTime > 1250 ) { /*higher re-emission timeout is 1200ms */
			retval = bzrtp_resetRetransmissionTimer(Alice.bzrtpContext, aliceSSRC);
			retval +=bzrtp_resetRetransmissionTimer(Bob.bzrtpContext, bobSSRC);
			lastPacketSentTime=getSimulatedTime();

		}

		if (badTimingFlag!=0 && setAuxSecretFlag < 2) { /* after the HelloPacket exchange has occurs, insert the auxSecret if we have the badTiming flag on */
			setAuxSecretFlag ++;
			if (setAuxSecretFlag == 2) { // first time we process a clock tick will be sending Hello Message, at the second one we will already have processed them and it will be too late
				if (aliceAuxSecret != NULL) {
					BC_ASSERT_NOT_EQUAL(bzrtp_setAuxiliarySharedSecret(Alice.bzrtpContext, aliceAuxSecret, aliceAuxSecretLength), 0, int, "%d"); // we expect this insert to be rejected
				}

				if (bobAuxSecret != NULL) {
					BC_ASSERT_NOT_EQUAL(bzrtp_setAuxiliarySharedSecret(Bob.bzrtpContext, bobAuxSecret, bobAuxSecretLength), 0, int, "%d"); // we expect this insert to be rejected
				}
			}
	}

	}
	if ((retval=bzrtp_getChannelStatus(Alice.bzrtpContext, aliceSSRC))!=BZRTP_CHANNEL_SECURE) {
		bzrtp_message("Fail Alice on channel1 loss rate is %d", loosePacketPercentage);
		BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
		return -1;
	}
	if ((retval=bzrtp_getChannelStatus(Bob.bzrtpContext, bobSSRC))!=BZRTP_CHANNEL_SECURE) {
		bzrtp_message("Fail Bob on channel1 loss rate is %d", loosePacketPercentage);
		BC_ASSERT_EQUAL(retval, BZRTP_CHANNEL_SECURE, int, "%0x");
		return -1;
	}

	bzrtp_message("ZRTP algo used during negotiation: Cipher: %s - KeyAgreement: %s - Hash: %s - AuthTag: %s - Sas Rendering: %s\n", bzrtp_cipher_toString(Alice.secrets->cipherAlgo), bzrtp_keyAgreement_toString(Alice.secrets->keyAgreementAlgo), bzrtp_hash_toString(Alice.secrets->hashAlgo), bzrtp_authtag_toString(Alice.secrets->authTagAlgo), bzrtp_sas_toString(Alice.secrets->sasAlgo));

	if ((retval=compareSecrets(Alice.secrets, Bob.secrets, TRUE))!=0) {
		BC_ASSERT_EQUAL(retval, 0, int, "%d");
		return -1;
	}

	// check aux secrets mismatch flag, they must be in sync
	if (Alice.secrets->auxSecretMismatch != Bob.secrets->auxSecretMismatch) {
		BC_FAIL("computed auxSecretMismatch flags differ from Alice to Bob");
		return -1;
	}

	// Do we have a mismatch on aux secret
	BC_ASSERT_EQUAL(Alice.secrets->auxSecretMismatch, expectedAuxSecretMismatch, uint8_t, "%d");

	/*** Destroy Contexts ***/
	while (bzrtp_destroyBzrtpContext(Alice.bzrtpContext, aliceSSRC)>0 && aliceSSRC>=ALICE_SSRC_BASE) {
		aliceSSRC--;
	}
	while (bzrtp_destroyBzrtpContext(Bob.bzrtpContext, bobSSRC)>0 && bobSSRC>=BOB_SSRC_BASE) {
		bobSSRC--;
	}

	return 0;
}

static void test_auxiliary_secret() {
	uint8_t secret1[] = {0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78, 0x89, 0x9a, 0x00, 0xff};
	uint8_t secret2[] = {0xfe, 0xed, 0xdc, 0xcb, 0xba, 0xa9, 0x98, 0x87, 0x76, 0x65, 0x54, 0x43};

	resetGlobalParams();

	// matching cases (expect mismatch flag to be 0)
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret1, sizeof(secret1), secret1, sizeof(secret1), 0, 0), 0, int, "%d");
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret2, sizeof(secret2), secret2, sizeof(secret2), 0, 0), 0, int, "%d");

	// mismatching cases (expect mismatch flag to be 1)
	// different secrets
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret1, sizeof(secret1), secret2, sizeof(secret2), 1, 0), 0, int, "%d");
	// only one side has a secret
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret1, sizeof(secret1), NULL, 0, 1, 0), 0, int, "%d");
	// no one has a secret
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(NULL, 0, NULL, 0, 1, 0), 0, int, "%d");
	// same secret but one is one byte shorter
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret1, sizeof(secret1)-1, secret1, sizeof(secret1), 1, 0), 0, int, "%d");

	// matching secret, but inserted to late(last param is a flag to do that)
	BC_ASSERT_EQUAL(test_auxiliary_secret_params(secret1, sizeof(secret1), secret1, sizeof(secret1), 1, 1), 0, int, "%d");
};

1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341
/**
 * scenario:
 *  - create new users with empty zid cache
 *  - start a firt exchange but abort it before conclusion
 *  - make a successive exchange going correctly to the end
 */
static void test_abort_retry(void) {
#ifdef ZIDCACHE_ENABLED
	sqlite3 *aliceDB=NULL;
	sqlite3 *bobDB=NULL;
	uint8_t selfZIDalice[12];
	uint8_t selfZIDbob[12];
	int zuidAlice=0,zuidBob=0;
	const char *colNames[] = {"rs1", "rs2", "pvs"};
	uint8_t *colValuesAlice[3];
	size_t colLengthAlice[3];
	uint8_t *colValuesBob[3];
	size_t colLengthBob[3];
	int i;

	resetGlobalParams();

	/* create tempory DB files, just try to clean them from dir before, just in case  */
	remove("tmpZIDAlice_abortRetry.sqlite");
	remove("tmpZIDBob_abortRetry.sqlite");
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDAlice_abortRetry.sqlite"), &aliceDB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob_abortRetry.sqlite"), &bobDB);

	/* make a first exchange but abort it */
	timeOutLimit = ABORT_NEGOTIATION_TIMEOUT; /* set timeout to ABORT_NEGOTIATION_TIMEOUT aborts an ongoing negotiation without errors */
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), 0, int, "%x");

	/* after the first exchange we shall have only self ZID, peer ZID must not be inserted in cache */
	/* first get each ZIDs, note give NULL as RNG context may lead to segfault in case of error(caches were not created correctly)*/
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)aliceDB, "alice@sip.linphone.org", selfZIDalice, NULL), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_getSelfZID((void *)bobDB, "bob@sip.linphone.org", selfZIDbob, NULL), 0, int, "%x");
	/* try to get the matching zuid in cache: it shall not be there as the negotiation didn't completed */
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)aliceDB, "alice@sip.linphone.org", "bob@sip.linphone.org", selfZIDbob, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidAlice), BZRTP_ERROR_CACHE_PEERNOTFOUND, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)bobDB, "bob@sip.linphone.org", "alice@sip.linphone.org", selfZIDalice, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidBob), BZRTP_ERROR_CACHE_PEERNOTFOUND, int, "%x");

	/* make a second exchange */
	resetGlobalParams(); /* this one goes to the end of it */
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bobDB, "bob@sip.linphone.org"), 0, int, "%x");

	/* after the exchange we shall have both pvs values at 1 and both rs1 identical and rs2 null, retrieve them from cache and check it */
	/* first get each ZIDs, note give NULL as RNG context may lead to segfault in case of error(caches were not created correctly)*/
	/* get the matching zuid in cache */
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)aliceDB, "alice@sip.linphone.org", "bob@sip.linphone.org", selfZIDbob, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidAlice), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_getZuid((void *)bobDB, "bob@sip.linphone.org", "alice@sip.linphone.org", selfZIDalice, BZRTP_ZIDCACHE_DONT_INSERT_ZUID, &zuidBob), 0, int, "%x");

	if (zuidAlice==0 || zuidBob==0) {//abort if we didn't retrieve valid zuid values, keep tmp sqlite files for inspection
		sqlite3_close(aliceDB);
		sqlite3_close(bobDB);

		return;
	}

	/* retrieve the values */
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)aliceDB, zuidAlice, "zrtp", colNames, colValuesAlice, colLengthAlice, 3), 0, int, "%x");
	BC_ASSERT_EQUAL(bzrtp_cache_read((void *)bobDB, zuidBob, "zrtp", colNames, colValuesBob, colLengthBob, 3), 0, int, "%x");
	/* and compare to expected */
	/* rs1 is set and they are both the same */
	BC_ASSERT_EQUAL(colLengthAlice[0], 32, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[0], 32, int, "%d");
	BC_ASSERT_EQUAL(memcmp(colValuesAlice[0], colValuesBob[0], 32), 0, int, "%d");
	/* rs2 is unset(NULL) */
	BC_ASSERT_EQUAL(colLengthAlice[1], 0, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[1], 0, int, "%d");
	BC_ASSERT_PTR_NULL(colValuesAlice[1]);
	BC_ASSERT_PTR_NULL(colValuesBob[1]);
	/* pvs is equal to 1 */
	BC_ASSERT_EQUAL(colLengthAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(colLengthBob[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesAlice[2], 1, int, "%d");
	BC_ASSERT_EQUAL(*colValuesBob[2], 1, int, "%d");

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesBob[i]);
		colValuesBob[i]=NULL;
	}

	/* free buffers */
	for (i=0; i<3; i++) {
		free(colValuesAlice[i]);
		free(colValuesBob[i]);
	}
	sqlite3_close(aliceDB);
	sqlite3_close(bobDB);

	/* clean temporary files */
1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447
	remove("tmpZIDAlice_abortRetry.sqlite");
	remove("tmpZIDBob_abortRetry.sqlite");

#endif /* ZIDCACHE_ENABLED */
}

static void test_active_flag(void) {
#ifdef ZIDCACHE_ENABLED
	sqlite3 *aliceDB=NULL;
	sqlite3 *bob1DB=NULL;
	sqlite3 *bob2DB=NULL;
	sqlite3 *bob3DB=NULL;
	sqlite3 *claire1DB=NULL;
	sqlite3 *claire2DB=NULL;

	resetGlobalParams();

	/* create tempory DB files, just try to clean them from dir before, just in case  */
	remove("tmpZIDAlice_activeFlag.sqlite");
	/* bob has 3 devices */
	remove("tmpZIDBob1_activeFlag.sqlite");
	remove("tmpZIDBob2_activeFlag.sqlite");
	remove("tmpZIDBob3_activeFlag.sqlite");
	/* claire has 2 devices */
	remove("tmpZIDClaire1_activeFlag.sqlite");
	remove("tmpZIDClaire2_activeFlag.sqlite");
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDAlice_activeFlag.sqlite"), &aliceDB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob1_activeFlag.sqlite"), &bob1DB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob2_activeFlag.sqlite"), &bob2DB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDBob3_activeFlag.sqlite"), &bob3DB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDClaire1_activeFlag.sqlite"), &claire1DB);
	bzrtptester_sqlite3_open(bc_tester_file("tmpZIDClaire2_activeFlag.sqlite"), &claire2DB);

	/* make a first exchange alice <-> bob1, validate the SAS */
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob1DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be valid(bob1 is active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_VALID, int, "%x");

	/* make an exchange, alice <-> bob2, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob2DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be unknown(as it is the first exchange with bob2 which is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");

	/* make an exchange, alice <-> bob1, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob1DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be valid(bob1 is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_VALID, int, "%x");

	/* make an exchange, alice <-> bob1, alice is instructed to reset the SAS */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionResetSAS(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob1DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be invalid(bob1 is still active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_INVALID, int, "%x");

	/* make an exchange, alice <-> bob2, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob2DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be unknown(as it is the first exchange with bob2 which is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");

	/* make an exchange alice <-> bob2, validate the SAS */
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob2DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be valid (bob2 is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_VALID, int, "%x");

	/* make an exchange, alice <-> bob1, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob1DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be invalid(bob1 is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_INVALID, int, "%x");

	/* make an exchange, alice <-> bob3, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob3DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be unknown(as it is the first exchange with bob3 which is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");


	/* introducing Claire */
	/* ask alice what is the pvs status of the active claire uri: claire@sip.linphone.org, it shall still be unknown as alice never heard about clairee yet */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "claire@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");

	/* make an exchange, alice <-> claire1, alice is instructed to reset the SAS */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionResetSAS(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", claire1DB, "claire@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall still be unknown(bob3 is still active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");
	/* ask alice what is the pvs status of the active claire uri: claire@sip.linphone.org, it shall still be invalid */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "claire@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_INVALID, int, "%x");

	/* make a first exchange alice <-> claire2, validate the SAS */
	BC_ASSERT_EQUAL(multichannel_exchange(NULL, NULL, defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", claire2DB, "claire@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall still be unknown(bob3 is still active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_UNKNOWN, int, "%x");
	/* ask alice what is the pvs status of the active claire uri: claire@sip.linphone.org, it shall still be valid */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "claire@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_VALID, int, "%x");

	/* make an exchange, alice <-> bob1, alice is instructed to not validate the SAS nor invalidate it */
	BC_ASSERT_EQUAL(multichannel_exchange(defaultCryptoAlgoSelectionNoSASValidation(), defaultCryptoAlgoSelection(), defaultCryptoAlgoSelection(), aliceDB, "alice@sip.linphone.org", bob1DB, "bob@sip.linphone.org"), 0, int, "%x");
	/* ask alice what is the pvs status of the active bob uri: bob@sip.linphone.org, it shall be invalid(bob1 is now active) */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "bob@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_INVALID, int, "%x");
	/* ask alice what is the pvs status of the active claire uri: claire@sip.linphone.org, it shall still be valid */
	BC_ASSERT_EQUAL(bzrtp_cache_getPeerStatus(aliceDB, "claire@sip.linphone.org"), BZRTP_CACHE_PEER_STATUS_VALID, int, "%x");

	/* clean temporary files */
	remove("tmpZIDAlice_activeFlag.sqlite");
	remove("tmpZIDBob1_activeFlag.sqlite");
	remove("tmpZIDBob2_activeFlag.sqlite");
	remove("tmpZIDBob3_activeFlag.sqlite");
	remove("tmpZIDClaire1_activeFlag.sqlite");
	remove("tmpZIDClaire2_activeFlag.sqlite");
1448 1449 1450 1451

#endif /* ZIDCACHE_ENABLED */
}

Johan Pascal's avatar
Johan Pascal committed
1452 1453 1454 1455 1456
static test_t key_exchange_tests[] = {
	TEST_NO_TAG("Cacheless multi channel", test_cacheless_exchange),
	TEST_NO_TAG("Cached Simple", test_cache_enabled_exchange),
	TEST_NO_TAG("Cached mismatch", test_cache_mismatch_exchange),
	TEST_NO_TAG("Loosy network", test_loosy_network),
1457
	TEST_NO_TAG("Cached PVS", test_cache_sas_not_confirmed),
1458
	TEST_NO_TAG("Auxiliary Secret", test_auxiliary_secret),
1459 1460
	TEST_NO_TAG("Abort and retry", test_abort_retry),
	TEST_NO_TAG("Active flag", test_active_flag)
Johan Pascal's avatar
Johan Pascal committed
1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471
};

test_suite_t key_exchange_test_suite = {
	"Key exchange",
	NULL,
	NULL,
	NULL,
	NULL,
	sizeof(key_exchange_tests) / sizeof(key_exchange_tests[0]),
	key_exchange_tests
};