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/* Copyright (C) 2007-2017 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* 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
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "../suricata-common.h"
#include "../stream-tcp-private.h"
#include "../stream-tcp.h"
#include "../stream-tcp-reassemble.h"
#include "../stream-tcp-inline.h"
#include "../stream-tcp-list.h"
#include "../stream-tcp-util.h"
#include "../util-streaming-buffer.h"
#include "../util-print.h"
#include "../util-unittest.h"
static int VALIDATE(TcpStream *stream, uint8_t *data, uint32_t data_len)
{
if (StreamingBufferCompareRawData(&stream->sb,
data, data_len) == 0)
{
SCReturnInt(0);
}
SCLogInfo("OK");
PrintRawDataFp(stdout, data, data_len);
return 1;
}
#define INLINE_START(isn) \
Packet *p; \
TcpReassemblyThreadCtx *ra_ctx = NULL; \
TcpSession ssn; \
ThreadVars tv; \
memset(&tv, 0, sizeof(tv)); \
\
StreamTcpUTInit(&ra_ctx); \
StreamTcpUTInitInline(); \
\
StreamTcpUTSetupSession(&ssn); \
StreamTcpUTSetupStream(&ssn.server, (isn)); \
StreamTcpUTSetupStream(&ssn.client, (isn)); \
\
TcpStream *stream = &ssn.client;
#define INLINE_END \
StreamTcpUTClearSession(&ssn); \
StreamTcpUTDeinit(ra_ctx); \
PASS
#define INLINE_ADD_PAYLOAD(rseq, seg, seglen, packet, packetlen) \
p = UTHBuildPacketReal( \
(uint8_t *)(seg), (seglen), IPPROTO_TCP, "1.1.1.1", "2.2.2.2", 1024, 80); \
FAIL_IF(p == NULL); \
p->tcph->th_seq = htonl(stream->isn + (rseq)); \
p->tcph->th_ack = htonl(31); \
FAIL_IF(StreamTcpReassembleHandleSegmentHandleData(&tv, ra_ctx, &ssn, stream, p) < 0); \
FAIL_IF(memcmp(p->payload, packet, MIN((packetlen), p->payload_len)) != 0); \
UTHFreePacket(p);
#define INLINE_STEP(rseq, seg, seglen, buf, buflen, packet, packetlen) \
INLINE_ADD_PAYLOAD((rseq), (seg), (seglen), (packet), (packetlen)); \
FAIL_IF(!(VALIDATE(stream, (uint8_t *)(buf), (buflen))));
int UTHCheckGapAtPosition(TcpStream *stream, int pos, uint64_t offset, uint32_t len);
int UTHCheckDataAtPosition(
TcpStream *stream, int pos, uint64_t offset, const char *data, uint32_t len);
/** \test full overlap */
static int StreamTcpInlineTest01(void)
{
INLINE_START(0);
INLINE_STEP(1, "AAC", 3, "AAC", 3, "AAC", 3);
INLINE_STEP(1, "ABC", 3, "AAC", 3, "AAC", 3);
INLINE_END;
}
/** \test full overlap */
static int StreamTcpInlineTest02(void)
{
INLINE_START(0);
INLINE_STEP(1, "ABCDE", 5, "ABCDE", 5, "ABCDE", 5);
INLINE_STEP(2, "xxx", 3, "ABCDE", 5, "BCD", 3);
INLINE_END;
}
/** \test partial overlap */
static int StreamTcpInlineTest03(void)
{
INLINE_START(0);
INLINE_STEP(1, "ABCDE", 5, "ABCDE", 5, "ABCDE", 5);
INLINE_STEP(3, "xxxxx", 5, "ABCDExx", 7, "CDExx", 5);
INLINE_END;
}
/** \test partial overlap */
static int StreamTcpInlineTest04(void)
{
INLINE_START(0);
INLINE_ADD_PAYLOAD(3, "ABCDE", 5, "ABCDE", 5);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 2) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 2, "ABCDE", 5) == 1);
INLINE_STEP(1, "xxxxx", 5, "xxABCDE", 7, "xxABC", 5);
INLINE_END;
}
/** \test no overlap */
static int StreamTcpInlineTest05(void)
{
INLINE_START(0);
INLINE_ADD_PAYLOAD(8, "ABCDE", 5, "ABCDE", 5);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 7) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 7, "ABCDE", 5) == 1);
INLINE_ADD_PAYLOAD(1, "xxxxx", 5, "xxxxx", 5);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 0, 0, "xxxxx", 5) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 1, 5, 2) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 2, 7, "ABCDE", 5) == 1);
INLINE_END;
}
/** \test multiple overlaps */
static int StreamTcpInlineTest06(void)
{
INLINE_START(0);
INLINE_ADD_PAYLOAD(2, "A", 1, "A", 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 1, "A", 1) == 1);
INLINE_ADD_PAYLOAD(4, "A", 1, "A", 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 1, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 2, 2, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 3, 3, "A", 1) == 1);
INLINE_ADD_PAYLOAD(6, "A", 1, "A", 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 1, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 2, 2, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 3, 3, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 4, 4, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 5, 5, "A", 1) == 1);
INLINE_ADD_PAYLOAD(8, "A", 1, "A", 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 1, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 2, 2, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 3, 3, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 4, 4, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 5, 5, "A", 1) == 1);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 6, 6, 1) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 7, 7, "A", 1) == 1);
INLINE_STEP(1, "xxxxxxxxx", 9, "xAxAxAxAx", 9, "xAxAxAxAx", 9);
INLINE_END;
}
/** \test overlap, data not different */
static int StreamTcpInlineTest07(void)
{
INLINE_START(0);
INLINE_ADD_PAYLOAD(3, "ABCDE", 5, "ABCDE", 5);
FAIL_IF_NOT(UTHCheckGapAtPosition(stream, 0, 0, 2) == 1);
FAIL_IF_NOT(UTHCheckDataAtPosition(stream, 1, 2, "ABCDE", 5) == 1);
INLINE_STEP(1, "XXABC", 5, "XXABCDE", 7, "XXABC", 5);
INLINE_END;
}
static int StreamTcpInlineTest08(void)
{
INLINE_START(0);
INLINE_STEP(1, "AAAAA", 5, "AAAAA", 5, "AAAAA", 5);
INLINE_STEP(1, "BBBBB", 5, "AAAAA", 5, "AAAAA", 5);
INLINE_STEP(1, "CCCCCCCCCC", 10, "AAAAACCCCC", 10, "AAAAACCCCC", 10);
INLINE_STEP(10, "X", 1, "AAAAACCCCC", 10, "C", 1);
INLINE_STEP(11, "X", 1, "AAAAACCCCCX", 11, "X", 1);
INLINE_END;
}
void StreamTcpInlineRegisterTests(void)
{
UtRegisterTest("StreamTcpInlineTest01", StreamTcpInlineTest01);
UtRegisterTest("StreamTcpInlineTest02", StreamTcpInlineTest02);
UtRegisterTest("StreamTcpInlineTest03", StreamTcpInlineTest03);
UtRegisterTest("StreamTcpInlineTest04", StreamTcpInlineTest04);
UtRegisterTest("StreamTcpInlineTest05", StreamTcpInlineTest05);
UtRegisterTest("StreamTcpInlineTest06", StreamTcpInlineTest06);
UtRegisterTest("StreamTcpInlineTest07", StreamTcpInlineTest07);
UtRegisterTest("StreamTcpInlineTest08", StreamTcpInlineTest08);
}
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