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/* Copyright (C) 2007-2010 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \ingroup httplayer
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*
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* @{
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*/
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/** \file
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*
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* \author Anoop Saldanha <anoopsaldanha@gmail.com>
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*
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* \brief Handle HTTP raw header match.
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*
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*/
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#include "suricata-common.h"
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#include "suricata.h"
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#include "decode.h"
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#include "detect.h"
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#include "detect-engine.h"
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#include "detect-engine-hrhd.h"
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#include "detect-engine-mpm.h"
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#include "detect-parse.h"
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#include "detect-engine-state.h"
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#include "detect-engine-content-inspection.h"
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#include "flow-util.h"
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#include "util-debug.h"
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#include "util-print.h"
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#include "flow.h"
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|
|
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|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
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#include "stream-tcp.h"
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#include "app-layer-parser.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "app-layer.h"
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#include "app-layer-htp.h"
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#include "app-layer-protos.h"
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#include "util-validate.h"
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/**
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* \brief Http raw header match -- searches for one pattern per signature.
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*
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* \param det_ctx Detection engine thread ctx.
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* \param raw_headers Raw headers to inspect.
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* \param raw_headers_len Raw headers length.
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*
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* \retval ret Number of matches.
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*/
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static inline uint32_t HttpRawHeaderPatternSearch(DetectEngineThreadCtx *det_ctx,
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const uint8_t *raw_headers, const uint32_t raw_headers_len,
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const uint8_t flags)
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{
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SCEnter();
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uint32_t ret = 0;
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if (flags & STREAM_TOSERVER) {
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DEBUG_VALIDATE_BUG_ON(det_ctx->sgh->mpm_hrhd_ctx_ts == NULL);
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if (raw_headers_len >= det_ctx->sgh->mpm_hrhd_ctx_ts->minlen) {
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ret = mpm_table[det_ctx->sgh->mpm_hrhd_ctx_ts->mpm_type].
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Search(det_ctx->sgh->mpm_hrhd_ctx_ts, &det_ctx->mtcu,
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&det_ctx->pmq, raw_headers, raw_headers_len);
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}
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} else {
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DEBUG_VALIDATE_BUG_ON(det_ctx->sgh->mpm_hrhd_ctx_tc == NULL);
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if (raw_headers_len >= det_ctx->sgh->mpm_hrhd_ctx_tc->minlen) {
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ret = mpm_table[det_ctx->sgh->mpm_hrhd_ctx_tc->mpm_type].
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Search(det_ctx->sgh->mpm_hrhd_ctx_tc, &det_ctx->mtcu,
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&det_ctx->pmq, raw_headers, raw_headers_len);
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}
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}
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SCReturnUInt(ret);
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|
}
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int DetectEngineRunHttpRawHeaderMpm(DetectEngineThreadCtx *det_ctx, Flow *f,
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HtpState *htp_state, uint8_t flags,
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void *txv, uint64_t idx)
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|
{
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|
SCEnter();
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uint32_t cnt = 0;
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htp_tx_t *tx = (htp_tx_t *)txv;
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HtpTxUserData *tx_ud = htp_tx_get_user_data(tx);
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if (tx_ud == NULL) {
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|
SCReturnInt(0);
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|
}
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if (flags & STREAM_TOSERVER) {
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|
if (tx_ud->request_headers_raw != NULL) {
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cnt = HttpRawHeaderPatternSearch(det_ctx,
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tx_ud->request_headers_raw,
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tx_ud->request_headers_raw_len,
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flags);
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}
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} else {
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if (tx_ud->response_headers_raw != NULL) {
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cnt = HttpRawHeaderPatternSearch(det_ctx,
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|
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tx_ud->response_headers_raw,
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tx_ud->response_headers_raw_len,
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flags);
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}
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}
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SCReturnInt(cnt);
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}
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/**
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* \brief Do the http_raw_header content inspection for a signature.
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*
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* \param de_ctx Detection engine context.
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* \param det_ctx Detection engine thread context.
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* \param s Signature to inspect.
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* \param f Flow.
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* \param flags App layer flags.
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* \param state App layer state.
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*
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* \retval 0 No match.
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* \retval 1 Match.
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*/
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int DetectEngineInspectHttpRawHeader(ThreadVars *tv,
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DetectEngineCtx *de_ctx,
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DetectEngineThreadCtx *det_ctx,
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Signature *s, Flow *f, uint8_t flags,
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void *alstate,
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void *txv, uint64_t tx_id)
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{
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HtpTxUserData *tx_ud = NULL;
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|
|
uint8_t *headers_raw = NULL;
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uint32_t headers_raw_len = 0;
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|
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if (flags & STREAM_TOSERVER) {
|
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|
|
|
if (AppLayerParserGetStateProgress(IPPROTO_TCP, ALPROTO_HTTP, txv, flags) <= HTP_REQUEST_HEADERS)
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|
return DETECT_ENGINE_INSPECT_SIG_NO_MATCH;
|
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|
|
|
} else {
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|
|
|
if (AppLayerParserGetStateProgress(IPPROTO_TCP, ALPROTO_HTTP, txv, flags) <= HTP_RESPONSE_HEADERS)
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|
|
|
return DETECT_ENGINE_INSPECT_SIG_NO_MATCH;
|
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|
|
|
}
|
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|
|
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|
|
|
tx_ud = htp_tx_get_user_data(txv);
|
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|
|
|
if (tx_ud == NULL)
|
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|
|
|
goto end;
|
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|
|
if (flags & STREAM_TOSERVER) {
|
|
|
|
|
headers_raw = tx_ud->request_headers_raw;
|
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|
|
|
headers_raw_len = tx_ud->request_headers_raw_len;
|
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|
|
|
} else {
|
|
|
|
|
headers_raw = tx_ud->response_headers_raw;
|
|
|
|
|
headers_raw_len = tx_ud->response_headers_raw_len;
|
|
|
|
|
}
|
|
|
|
|
if (headers_raw == NULL)
|
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|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
det_ctx->buffer_offset = 0;
|
|
|
|
|
det_ctx->discontinue_matching = 0;
|
|
|
|
|
det_ctx->inspection_recursion_counter = 0;
|
|
|
|
|
int r = DetectEngineContentInspection(de_ctx, det_ctx, s, s->sm_lists[DETECT_SM_LIST_HRHDMATCH],
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|
|
|
|
f,
|
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|
|
|
headers_raw,
|
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|
|
|
headers_raw_len,
|
|
|
|
|
0,
|
|
|
|
|
DETECT_ENGINE_CONTENT_INSPECTION_MODE_HRHD, NULL);
|
|
|
|
|
if (r == 1)
|
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|
|
|
return DETECT_ENGINE_INSPECT_SIG_MATCH;
|
|
|
|
|
|
|
|
|
|
end:
|
|
|
|
|
if (flags & STREAM_TOSERVER) {
|
|
|
|
|
if (AppLayerParserGetStateProgress(IPPROTO_TCP, ALPROTO_HTTP, txv, flags) > HTP_REQUEST_HEADERS)
|
|
|
|
|
return DETECT_ENGINE_INSPECT_SIG_CANT_MATCH;
|
|
|
|
|
} else {
|
|
|
|
|
if (AppLayerParserGetStateProgress(IPPROTO_TCP, ALPROTO_HTTP, txv, flags) > HTP_RESPONSE_HEADERS)
|
|
|
|
|
return DETECT_ENGINE_INSPECT_SIG_CANT_MATCH;
|
|
|
|
|
}
|
|
|
|
|
return DETECT_ENGINE_INSPECT_SIG_NO_MATCH;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/***********************************Unittests**********************************/
|
|
|
|
|
|
|
|
|
|
#ifdef UNITTESTS
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|
|
|
|
|
|
|
|
|
/**
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|
|
|
|
*\test Test that the http_header content matches against a http request
|
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|
|
|
* which holds the content.
|
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|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest01(void)
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|
|
|
|
{
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|
|
|
|
TcpSession ssn;
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|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
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|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest02(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; depth:15; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest03(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:!\"one\"; depth:5; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest04(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; depth:5; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest05(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:!\"one\"; depth:15; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest06(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; offset:10; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest07(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:!\"one\"; offset:15; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest08(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; offset:15; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest09(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:!\"one\"; offset:10; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest10(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:\"three\"; http_raw_header; within:10; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest11(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:!\"three\"; http_raw_header; within:5; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest12(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:!\"three\"; http_raw_header; within:10; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest13(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:\"three\"; http_raw_header; within:5; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest14(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:\"five\"; http_raw_header; distance:7; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest15(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:!\"five\"; http_raw_header; distance:15; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest16(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:!\"five\"; http_raw_header; distance:7; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest17(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.onetwothreefourfivesixseven.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:\"five\"; http_raw_header; distance:15; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: ");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest18(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"Host: www.onetwothreefourfivesixsevenfive.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; content:\"five\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
/* start the search phase */
|
|
|
|
|
det_ctx->sgh = SigMatchSignaturesGetSgh(de_ctx, det_ctx, p);
|
|
|
|
|
uint32_t r = HttpRawHeaderPatternSearch(det_ctx, http_buf, http_len, STREAM_TOSERVER);
|
|
|
|
|
if (r < 1) {
|
|
|
|
|
printf("expected result >= 1, got %"PRIu32": ", r);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
*\test Test that the http_header content matches against a http request
|
|
|
|
|
* which holds the content.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest19(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf[] =
|
|
|
|
|
"Host: www.onetwothreefourfivesixsevenfive.org\r\n\r\n";
|
|
|
|
|
uint32_t http_len = sizeof(http_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
p->flow = &f;
|
|
|
|
|
p->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_server; "
|
|
|
|
|
"content:\"one\"; http_raw_header; fast_pattern; content:\"five\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
/* start the search phase */
|
|
|
|
|
det_ctx->sgh = SigMatchSignaturesGetSgh(de_ctx, det_ctx, p);
|
|
|
|
|
uint32_t r = HttpRawHeaderPatternSearch(det_ctx, http_buf, http_len, STREAM_TOSERVER);
|
|
|
|
|
if (r != 1) {
|
|
|
|
|
printf("expected result 1, got %"PRIu32": ", r);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest20(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:!\"dummy\"; http_raw_header; within:7; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest21(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:!\"dummy\"; within:7; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest22(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:!\"dummy\"; distance:3; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest23(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:!\"dummy\"; distance:13; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but should have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest24(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:\"dummy\"; within:15; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but should have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest25(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:\"dummy\"; within:10; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest26(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:\"dummy\"; distance:8; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but should have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest27(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: This_is_dummy_body1";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"This_is_dummy_message_body2\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http client body test\"; flow:to_server; "
|
|
|
|
|
"pcre:/body1/D; "
|
|
|
|
|
"content:\"dummy\"; distance:14; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest28(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf1[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.openinfosecfoundation.org\r\n"
|
|
|
|
|
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http_buf1_len = sizeof(http_buf1) - 1;
|
|
|
|
|
uint8_t http_buf2[] =
|
|
|
|
|
"HTTP/1.0 200 ok\r\n"
|
|
|
|
|
"Content-Type: text/html\r\n"
|
|
|
|
|
"Content-Length: 6\r\n"
|
|
|
|
|
"\r\n"
|
|
|
|
|
"abcdef";
|
|
|
|
|
uint32_t http_buf2_len = sizeof(http_buf2) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOCLIENT;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_client; "
|
|
|
|
|
"content:\"Content-Length: 6\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf1,
|
|
|
|
|
http_buf1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT, http_buf2, http_buf2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but should have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest29(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http_buf1[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"Host: www.openinfosecfoundation.org\r\n"
|
|
|
|
|
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http_buf1_len = sizeof(http_buf1) - 1;
|
|
|
|
|
uint8_t http_buf2[] =
|
|
|
|
|
"HTTP/1.0 200 ok\r\n"
|
|
|
|
|
"Content-Type: text/html\r\n"
|
|
|
|
|
"Content-Length: 6\r\n"
|
|
|
|
|
"\r\n"
|
|
|
|
|
"abcdef";
|
|
|
|
|
uint32_t http_buf2_len = sizeof(http_buf2) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOCLIENT;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; flow:to_client; "
|
|
|
|
|
"content:\"Content-Length: 7\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf1,
|
|
|
|
|
http_buf1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT, http_buf2, http_buf2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest30(void)
|
|
|
|
|
{
|
|
|
|
|
int result = 0;
|
|
|
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
|
|
|
|
|
|
if (de_ctx == NULL) {
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx, "alert http any any -> any any "
|
|
|
|
|
"(msg:\"http header test\"; "
|
|
|
|
|
"content:\"Content-Length: 6\"; http_raw_header; "
|
|
|
|
|
"content:\"User-Agent: Mozilla\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list != NULL) {
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* #if 0 */
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* \test Trailing headers.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest31(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"host: boom\r\n"
|
|
|
|
|
"Transfer-Encoding: chunked\r\n"
|
|
|
|
|
"\r\n"
|
|
|
|
|
"13\r\n"
|
|
|
|
|
"This is dummy body1\r\n"
|
|
|
|
|
"0\r\n"
|
|
|
|
|
"Dummy-Header: kaboom\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(flow:to_server; "
|
|
|
|
|
"content:\"Dummy\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (!(PacketAlertCheck(p1, 1))) {
|
|
|
|
|
printf("sid 1 didn't match but should have: ");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* \test Trailing headers.
|
|
|
|
|
*/
|
|
|
|
|
static int DetectEngineHttpRawHeaderTest32(void)
|
|
|
|
|
{
|
|
|
|
|
TcpSession ssn;
|
|
|
|
|
Packet *p1 = NULL;
|
|
|
|
|
Packet *p2 = NULL;
|
|
|
|
|
ThreadVars th_v;
|
|
|
|
|
DetectEngineCtx *de_ctx = NULL;
|
|
|
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
|
HtpState *http_state = NULL;
|
|
|
|
|
Flow f;
|
|
|
|
|
uint8_t http1_buf[] =
|
|
|
|
|
"GET /index.html HTTP/1.0\r\n"
|
|
|
|
|
"host: boom\r\n"
|
|
|
|
|
"Transfer-Encoding: chunked\r\n"
|
|
|
|
|
"\r\n"
|
|
|
|
|
"13\r\n"
|
|
|
|
|
"This is dummy body1\r\n"
|
|
|
|
|
"0\r\n";
|
|
|
|
|
uint8_t http2_buf[] =
|
|
|
|
|
"Dummy-Header: kaboom\r\n"
|
|
|
|
|
"\r\n";
|
|
|
|
|
uint32_t http1_len = sizeof(http1_buf) - 1;
|
|
|
|
|
uint32_t http2_len = sizeof(http2_buf) - 1;
|
|
|
|
|
int result = 0;
|
|
|
|
|
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
|
|
|
|
|
|
|
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
|
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
|
|
|
|
|
|
|
|
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
|
|
|
|
|
|
|
|
|
|
FLOW_INITIALIZE(&f);
|
|
|
|
|
f.protoctx = (void *)&ssn;
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
f.proto = IPPROTO_TCP;
|
|
|
|
|
f.flags |= FLOW_IPV4;
|
|
|
|
|
|
|
|
|
|
p1->flow = &f;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
p2->flow = &f;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_TOSERVER;
|
|
|
|
|
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
|
|
|
|
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
|
|
|
|
f.alproto = ALPROTO_HTTP;
|
|
|
|
|
|
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
|
|
|
|
|
|
|
|
de_ctx = DetectEngineCtxInit();
|
|
|
|
|
if (de_ctx == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
|
|
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
|
|
|
"(flow:to_server; "
|
|
|
|
|
"content:\"Dummy\"; http_raw_header; "
|
|
|
|
|
"sid:1;)");
|
|
|
|
|
if (de_ctx->sig_list == NULL)
|
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
|
|
SigGroupBuild(de_ctx);
|
|
|
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
http_state = f.alstate;
|
|
|
|
|
if (http_state == NULL) {
|
|
|
|
|
printf("no http state: \n");
|
|
|
|
|
result = 0;
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
|
|
|
|
|
|
|
|
|
|
if (PacketAlertCheck(p1, 1)) {
|
|
|
|
|
printf("sid 1 matched but shouldn't have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SCMutexLock(&f.m);
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
|
|
|
if (r != 0) {
|
|
|
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: \n", r);
|
|
|
|
|
result = 0;
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
SCMutexUnlock(&f.m);
|
|
|
|
|
|
|
|
|
|
/* do detect */
|
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
|
|
|
|
|
|
|
|
|
|
if (!PacketAlertCheck(p2, 1)) {
|
|
|
|
|
printf("sid 1 didn't match but should have\n");
|
|
|
|
|
goto end;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result = 1;
|
|
|
|
|
|
|
|
|
|
end:
|
App layer API rewritten. The main files in question are:
app-layer.[ch], app-layer-detect-proto.[ch] and app-layer-parser.[ch].
Things addressed in this commit:
- Brings out a proper separation between protocol detection phase and the
parser phase.
- The dns app layer now is registered such that we don't use "dnstcp" and
"dnsudp" in the rules. A user who previously wrote a rule like this -
"alert dnstcp....." or
"alert dnsudp....."
would now have to use,
alert dns (ipproto:tcp;) or
alert udp (app-layer-protocol:dns;) or
alert ip (ipproto:udp; app-layer-protocol:dns;)
The same rules extend to other another such protocol, dcerpc.
- The app layer parser api now takes in the ipproto while registering
callbacks.
- The app inspection/detection engine also takes an ipproto.
- All app layer parser functions now take direction as STREAM_TOSERVER or
STREAM_TOCLIENT, as opposed to 0 or 1, which was taken by some of the
functions.
- FlowInitialize() and FlowRecycle() now resets proto to 0. This is
needed by unittests, which would try to clean the flow, and that would
call the api, AppLayerParserCleanupParserState(), which would try to
clean the app state, but the app layer now needs an ipproto to figure
out which api to internally call to clean the state, and if the ipproto
is 0, it would return without trying to clean the state.
- A lot of unittests are now updated where if they are using a flow and
they need to use the app layer, we would set a flow ipproto.
- The "app-layer" section in the yaml conf has also been updated as well.
13 years ago
|
|
|
if (alp_tctx != NULL)
|
|
|
|
|
AppLayerParserThreadCtxFree(alp_tctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigGroupCleanup(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
|
if (de_ctx != NULL)
|
|
|
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
|
|
|
|
|
|
StreamTcpFreeConfig(TRUE);
|
|
|
|
|
FLOW_DESTROY(&f);
|
|
|
|
|
UTHFreePackets(&p1, 1);
|
|
|
|
|
UTHFreePackets(&p2, 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* UNITTESTS */
|
|
|
|
|
|
|
|
|
|
void DetectEngineHttpRawHeaderRegisterTests(void)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
#ifdef UNITTESTS
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest01",
|
|
|
|
|
DetectEngineHttpRawHeaderTest01);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest02",
|
|
|
|
|
DetectEngineHttpRawHeaderTest02);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest03",
|
|
|
|
|
DetectEngineHttpRawHeaderTest03);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest04",
|
|
|
|
|
DetectEngineHttpRawHeaderTest04);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest05",
|
|
|
|
|
DetectEngineHttpRawHeaderTest05);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest06",
|
|
|
|
|
DetectEngineHttpRawHeaderTest06);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest07",
|
|
|
|
|
DetectEngineHttpRawHeaderTest07);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest08",
|
|
|
|
|
DetectEngineHttpRawHeaderTest08);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest09",
|
|
|
|
|
DetectEngineHttpRawHeaderTest09);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest10",
|
|
|
|
|
DetectEngineHttpRawHeaderTest10);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest11",
|
|
|
|
|
DetectEngineHttpRawHeaderTest11);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest12",
|
|
|
|
|
DetectEngineHttpRawHeaderTest12);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest13",
|
|
|
|
|
DetectEngineHttpRawHeaderTest13);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest14",
|
|
|
|
|
DetectEngineHttpRawHeaderTest14);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest15",
|
|
|
|
|
DetectEngineHttpRawHeaderTest15);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest16",
|
|
|
|
|
DetectEngineHttpRawHeaderTest16);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest17",
|
|
|
|
|
DetectEngineHttpRawHeaderTest17);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest18",
|
|
|
|
|
DetectEngineHttpRawHeaderTest18);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest19",
|
|
|
|
|
DetectEngineHttpRawHeaderTest19);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest20",
|
|
|
|
|
DetectEngineHttpRawHeaderTest20);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest21",
|
|
|
|
|
DetectEngineHttpRawHeaderTest21);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest22",
|
|
|
|
|
DetectEngineHttpRawHeaderTest22);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest23",
|
|
|
|
|
DetectEngineHttpRawHeaderTest23);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest24",
|
|
|
|
|
DetectEngineHttpRawHeaderTest24);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest25",
|
|
|
|
|
DetectEngineHttpRawHeaderTest25);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest26",
|
|
|
|
|
DetectEngineHttpRawHeaderTest26);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest27",
|
|
|
|
|
DetectEngineHttpRawHeaderTest27);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest28",
|
|
|
|
|
DetectEngineHttpRawHeaderTest28);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest29",
|
|
|
|
|
DetectEngineHttpRawHeaderTest29);
|
|
|
|
|
#if 0
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest30",
|
|
|
|
|
DetectEngineHttpRawHeaderTest30, 1);
|
|
|
|
|
#endif
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest31",
|
|
|
|
|
DetectEngineHttpRawHeaderTest31);
|
|
|
|
|
UtRegisterTest("DetectEngineHttpRawHeaderTest32",
|
|
|
|
|
DetectEngineHttpRawHeaderTest32);
|
|
|
|
|
#endif /* UNITTESTS */
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
/**
|
|
|
|
|
* @}
|
|
|
|
|
*/
|