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app-layer-htp-file.c
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app-layer-htp-file.c
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/* Copyright (C) 2007-2011 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.
*/
/**
* \file
*
* \author Victor Julien <[email protected]>
*
* This file provides HTTP protocol file handling support for the engine
* using HTP library.
*/
#include "suricata.h"
#include "suricata-common.h"
#include "debug.h"
#include "decode.h"
#include "threads.h"
#include "util-print.h"
#include "util-pool.h"
#include "util-radix-tree.h"
#include "stream-tcp-private.h"
#include "stream-tcp-reassemble.h"
#include "stream-tcp.h"
#include "stream.h"
#include "app-layer.h"
#include "app-layer-protos.h"
#include "app-layer-parser.h"
#include "app-layer-htp.h"
#include "util-spm.h"
#include "util-debug.h"
#include "util-time.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "flow-util.h"
#include "detect-engine.h"
#include "detect-engine-state.h"
#include "detect-parse.h"
#include "conf.h"
#include "util-memcmp.h"
/**
* \brief Open the file with "filename" and pass the first chunk
* of data if any.
*
* \param s http state
* \param filename name of the file
* \param filename_len length of the name
* \param data data chunk (if any)
* \param data_len length of the data portion
* \param direction flow direction
*
* \retval 0 ok
* \retval -1 error
* \retval -2 not handling files on this flow
*/
int HTPFileOpen(HtpState *s, const uint8_t *filename, uint16_t filename_len,
const uint8_t *data, uint32_t data_len,
uint64_t txid, uint8_t direction)
{
int retval = 0;
uint16_t flags = 0;
FileContainer *files = NULL;
FileContainer *files_opposite = NULL;
const StreamingBufferConfig *sbcfg = NULL;
SCLogDebug("data %p data_len %"PRIu32, data, data_len);
if (s == NULL) {
SCReturnInt(-1);
}
if (direction & STREAM_TOCLIENT) {
if (s->files_tc == NULL) {
s->files_tc = FileContainerAlloc();
if (s->files_tc == NULL) {
retval = -1;
goto end;
}
}
files = s->files_tc;
files_opposite = s->files_ts;
flags = FileFlowToFlags(s->f, STREAM_TOCLIENT);
if ((s->flags & HTP_FLAG_STORE_FILES_TS) ||
((s->flags & HTP_FLAG_STORE_FILES_TX_TS) && txid == s->store_tx_id)) {
flags |= FILE_STORE;
flags &= ~FILE_NOSTORE;
} else if (!(flags & FILE_STORE) && (s->f->file_flags & FLOWFILE_NO_STORE_TC)) {
flags |= FILE_NOSTORE;
}
sbcfg = &s->cfg->response.sbcfg;
} else {
if (s->files_ts == NULL) {
s->files_ts = FileContainerAlloc();
if (s->files_ts == NULL) {
retval = -1;
goto end;
}
}
files = s->files_ts;
files_opposite = s->files_tc;
flags = FileFlowToFlags(s->f, STREAM_TOSERVER);
if ((s->flags & HTP_FLAG_STORE_FILES_TC) ||
((s->flags & HTP_FLAG_STORE_FILES_TX_TC) && txid == s->store_tx_id)) {
flags |= FILE_STORE;
flags &= ~FILE_NOSTORE;
} else if (!(flags & FILE_STORE) && (s->f->file_flags & FLOWFILE_NO_STORE_TS)) {
flags |= FILE_NOSTORE;
}
sbcfg = &s->cfg->request.sbcfg;
}
/* if the previous file is in the same txid, we reset the file part of the
* stateful detection engine. We cannot do that here directly, because of
* locking order. Flow is locked at this point and we can't lock flow
* before de_state */
if (files != NULL && files->tail != NULL && files->tail->txid == txid) {
SCLogDebug("new file in same tx, flagging http state for de_state reset");
if (direction & STREAM_TOCLIENT) {
s->flags |= HTP_FLAG_NEW_FILE_TX_TC;
} else {
s->flags |= HTP_FLAG_NEW_FILE_TX_TS;
}
}
if (files_opposite != NULL && files_opposite->tail != NULL && files_opposite->tail->txid == txid) {
SCLogDebug("new file in same tx, flagging http state for de_state reset");
if (direction & STREAM_TOCLIENT) {
SCLogDebug("flagging TC");
s->flags |= HTP_FLAG_NEW_FILE_TX_TC;
} else {
SCLogDebug("flagging TS");
s->flags |= HTP_FLAG_NEW_FILE_TX_TS;
}
}
if (FileOpenFile(files, sbcfg, filename, filename_len,
data, data_len, flags) == NULL)
{
retval = -1;
}
FileSetTx(files->tail, txid);
FilePrune(files);
end:
SCReturnInt(retval);
}
/**
* \brief Store a chunk of data in the flow
*
* \param s http state
* \param data data chunk (if any)
* \param data_len length of the data portion
* \param direction flow direction
*
* \retval 0 ok
* \retval -1 error
* \retval -2 file doesn't need storing
*/
int HTPFileStoreChunk(HtpState *s, const uint8_t *data, uint32_t data_len,
uint8_t direction)
{
SCEnter();
int retval = 0;
int result = 0;
FileContainer *files = NULL;
if (s == NULL) {
SCReturnInt(-1);
}
if (direction & STREAM_TOCLIENT) {
files = s->files_tc;
} else {
files = s->files_ts;
}
if (files == NULL) {
SCLogDebug("no files in state");
retval = -1;
goto end;
}
result = FileAppendData(files, data, data_len);
if (result == -1) {
SCLogDebug("appending data failed");
retval = -1;
} else if (result == -2) {
retval = -2;
}
FilePrune(files);
end:
SCReturnInt(retval);
}
/**
* \brief Close the file in the flow
*
* \param s http state
* \param data data chunk if any
* \param data_len length of the data portion
* \param flags flags to indicate events
* \param direction flow direction
*
* Currently on the FLOW_FILE_TRUNCATED flag is implemented, indicating
* that the file isn't complete but we're stopping storing it.
*
* \retval 0 ok
* \retval -1 error
* \retval -2 not storing files on this flow/tx
*/
int HTPFileClose(HtpState *s, const uint8_t *data, uint32_t data_len,
uint8_t flags, uint8_t direction)
{
SCEnter();
int retval = 0;
int result = 0;
FileContainer *files = NULL;
if (s == NULL) {
SCReturnInt(-1);
}
if (direction & STREAM_TOCLIENT) {
files = s->files_tc;
} else {
files = s->files_ts;
}
if (files == NULL) {
retval = -1;
goto end;
}
result = FileCloseFile(files, data, data_len, flags);
if (result == -1) {
retval = -1;
} else if (result == -2) {
retval = -2;
}
FilePrune(files);
end:
SCReturnInt(retval);
}
#ifdef UNITTESTS
static int HTPFileParserTest01(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 215\r\n"
"\r\n"
"-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "filecontent\r\n"
"-----------------------------277531038314945--";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
HtpState *http_state = NULL;
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 <<<<\n");
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s \n", bstr_util_strdup_to_c(tx->request_method));
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
if (http_state != NULL)
HTPStateFree(http_state);
UTHFreeFlow(f);
return result;
}
static int HTPFileParserTest02(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 337\r\n"
"\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"email\"\r\n"
"\r\n"
"[email protected]\r\n";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
uint8_t httpbuf3[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n";
uint32_t httplen3 = sizeof(httpbuf3) - 1; /* minus the \0 */
uint8_t httpbuf4[] = "filecontent\r\n"
"-----------------------------277531038314945--";
uint32_t httplen4 = sizeof(httpbuf4) - 1; /* minus the \0 */
TcpSession ssn;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 <<<<\n");
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 3 size %u <<<<\n", httplen3);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf3, httplen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 4 size %u <<<<\n", httplen4);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf4, httplen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s \n", bstr_util_strdup_to_c(tx->request_method));
goto end;
}
if (http_state->files_ts == NULL || http_state->files_ts->tail == NULL ||
http_state->files_ts->tail->state != FILE_STATE_CLOSED) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
if (http_state != NULL)
HTPStateFree(http_state);
UTHFreeFlow(f);
return result;
}
static int HTPFileParserTest03(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 337\r\n"
"\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"email\"\r\n"
"\r\n"
"[email protected]\r\n";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
uint8_t httpbuf3[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n";
uint32_t httplen3 = sizeof(httpbuf3) - 1; /* minus the \0 */
uint8_t httpbuf4[] = "file";
uint32_t httplen4 = sizeof(httpbuf4) - 1; /* minus the \0 */
uint8_t httpbuf5[] = "content\r\n";
uint32_t httplen5 = sizeof(httpbuf5) - 1; /* minus the \0 */
uint8_t httpbuf6[] = "-----------------------------277531038314945--";
uint32_t httplen6 = sizeof(httpbuf6) - 1; /* minus the \0 */
TcpSession ssn;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 <<<<\n");
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 3 size %u <<<<\n", httplen3);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf3, httplen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 4 size %u <<<<\n", httplen4);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf4, httplen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 5 size %u <<<<\n", httplen5);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf5, httplen5);
if (r != 0) {
printf("toserver chunk 5 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 6 size %u <<<<\n", httplen6);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf6, httplen6);
if (r != 0) {
printf("toserver chunk 6 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s \n", bstr_util_strdup_to_c(tx->request_method));
goto end;
}
if (http_state->files_ts == NULL || http_state->files_ts->tail == NULL ||
http_state->files_ts->tail->state != FILE_STATE_CLOSED) {
goto end;
}
if (http_state->files_ts->head == NULL ||
FileDataSize(http_state->files_ts->head) != 11)
{
if (http_state->files_ts->head != NULL)
printf("filedata len not 11 but %"PRIu64": ",
FileDataSize(http_state->files_ts->head));
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
if (http_state != NULL)
HTPStateFree(http_state);
UTHFreeFlow(f);
return result;
}
static int HTPFileParserTest04(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 373\r\n"
"\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"email\"\r\n"
"\r\n"
"[email protected]\r\n";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
uint8_t httpbuf3[] = "-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n";
uint32_t httplen3 = sizeof(httpbuf3) - 1; /* minus the \0 */
uint8_t httpbuf4[] = "file0123456789abcdefghijklmnopqrstuvwxyz";
uint32_t httplen4 = sizeof(httpbuf4) - 1; /* minus the \0 */
uint8_t httpbuf5[] = "content\r\n";
uint32_t httplen5 = sizeof(httpbuf5) - 1; /* minus the \0 */
uint8_t httpbuf6[] = "-----------------------------277531038314945--";
uint32_t httplen6 = sizeof(httpbuf6) - 1; /* minus the \0 */
TcpSession ssn;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 <<<<\n");
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 3 size %u <<<<\n", httplen3);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf3, httplen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 4 size %u <<<<\n", httplen4);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf4, httplen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 5 size %u <<<<\n", httplen5);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf5, httplen5);
if (r != 0) {
printf("toserver chunk 5 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 6 size %u <<<<\n", httplen6);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf6, httplen6);
if (r != 0) {
printf("toserver chunk 6 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s: ", bstr_util_strdup_to_c(tx->request_method));
goto end;
}
if (http_state->files_ts == NULL || http_state->files_ts->tail == NULL ||
http_state->files_ts->tail->state != FILE_STATE_CLOSED) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
if (http_state != NULL)
HTPStateFree(http_state);
UTHFreeFlow(f);
return result;
}
static int HTPFileParserTest05(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 544\r\n"
"\r\n"
"-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n"
"filecontent\r\n"
"-----------------------------277531038314945\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "Content-Disposition: form-data; name=\"uploadfile_1\"; filename=\"somepicture2.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n"
"FILECONTENT\r\n"
"-----------------------------277531038314945--";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
TcpSession ssn;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 size %u <<<<\n", httplen1);
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s \n", bstr_util_strdup_to_c(tx->request_method));
goto end;
}
if (http_state->files_ts == NULL || http_state->files_ts->tail == NULL ||
http_state->files_ts->tail->state != FILE_STATE_CLOSED) {
goto end;
}
if (http_state->files_ts->head == http_state->files_ts->tail)
goto end;
if (http_state->files_ts->head->next != http_state->files_ts->tail)
goto end;
if (StreamingBufferCompareRawData(http_state->files_ts->head->sb,
(uint8_t *)"filecontent", 11) != 1)
{
goto end;
}
if (StreamingBufferCompareRawData(http_state->files_ts->tail->sb,
(uint8_t *)"FILECONTENT", 11) != 1)
{
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
if (http_state != NULL)
HTPStateFree(http_state);
UTHFreeFlow(f);
return result;
}
/** \test first multipart part contains file but doesn't end in first chunk */
static int HTPFileParserTest06(void)
{
int result = 0;
Flow *f = NULL;
uint8_t httpbuf1[] = "POST /upload.cgi HTTP/1.1\r\n"
"Host: www.server.lan\r\n"
"Content-Type: multipart/form-data; boundary=---------------------------277531038314945\r\n"
"Content-Length: 544\r\n"
"\r\n"
"-----------------------------277531038314945\r\n"
"Content-Disposition: form-data; name=\"uploadfile_0\"; filename=\"somepicture1.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n"
"filecontent\r\n"
"-----------------------------27753103831494";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "5\r\nContent-Disposition: form-data; name=\"uploadfile_1\"; filename=\"somepicture2.jpg\"\r\n"
"Content-Type: image/jpeg\r\n"
"\r\n"
"FILECONTENT\r\n"
"-----------------------------277531038314945--";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
TcpSession ssn;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = UTHBuildFlow(AF_INET, "1.2.3.4", "1.2.3.5", 1024, 80);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
SCLogDebug("\n>>>> processing chunk 1 size %u <<<<\n", httplen1);
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_START, httpbuf1,
httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
SCLogDebug("\n>>>> processing chunk 2 size %u <<<<\n", httplen2);
FLOWLOCK_WRLOCK(f);
r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_HTTP,
STREAM_TOSERVER | STREAM_EOF, httpbuf2, httplen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
http_state = f->alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
htp_tx_t *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_HTTP, http_state, 0);
if (tx == NULL) {
goto end;
}
if (tx->request_method == NULL || memcmp(bstr_util_strdup_to_c(tx->request_method), "POST", 4) != 0)
{
printf("expected method POST, got %s \n", bstr_util_strdup_to_c(tx->request_method));
goto end;