1 files changed, 91 insertions, 0 deletions
diff --git a/src/detect-rawbytes.c b/src/detect-rawbytes.c
new file mode 100644
index 0000000..1047e13
--- /dev/null
+++ b/src/detect-rawbytes.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2007-2018 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ *
+ * Implements rawbytes keyword support
+ *
+ * \todo Provide un-normalized telnet dce/rpc buffers to match on
+ */
+
+#include "suricata-common.h"
+
+#include "decode.h"
+#include "detect.h"
+#include "detect-parse.h"
+#include "detect-rawbytes.h"
+#include "detect-engine.h"
+
+#include "detect-content.h"
+#include "detect-pcre.h"
+
+#include "util-debug.h"
+
+static int DetectRawbytesSetup(DetectEngineCtx *, Signature *, const char *);
+
+void DetectRawbytesRegister(void)
+{
+    sigmatch_table[DETECT_RAWBYTES].name = "rawbytes";
+    sigmatch_table[DETECT_RAWBYTES].desc =
+            "dummy keyword to be compatible with snort signatures without effect";
+    sigmatch_table[DETECT_RAWBYTES].url = "/rules/payload-keywords.html#rawbytes";
+    sigmatch_table[DETECT_RAWBYTES].Setup = DetectRawbytesSetup;
+    sigmatch_table[DETECT_RAWBYTES].flags |= SIGMATCH_NOOPT;
+}
+
+static int DetectRawbytesSetup(DetectEngineCtx *de_ctx, Signature *s, const char *nullstr)
+{
+    SCEnter();
+
+    if (nullstr != NULL) {
+        SCLogError("rawbytes has no value");
+        SCReturnInt(-1);
+    }
+
+    if (s->init_data->list != DETECT_SM_LIST_NOTSET) {
+        SCLogError("\"rawbytes\" cannot be combined "
+                   "with the \"%s\" sticky buffer",
+                DetectEngineBufferTypeGetNameById(de_ctx, s->init_data->list));
+        SCReturnInt(-1);
+    }
+
+    SigMatch *pm = DetectGetLastSMByListId(s, DETECT_SM_LIST_PMATCH, DETECT_CONTENT, -1);
+    if (pm == NULL) {
+        SCLogError("\"rawbytes\" needs a preceding content option");
+        SCReturnInt(-1);
+    }
+
+    switch (pm->type) {
+        case DETECT_CONTENT: {
+            DetectContentData *cd = (DetectContentData *)pm->ctx;
+            if (cd->flags & DETECT_CONTENT_RAWBYTES) {
+                SCLogError("can't use multiple rawbytes modifiers for the same content. ");
+                SCReturnInt(-1);
+            }
+            cd->flags |= DETECT_CONTENT_RAWBYTES;
+            break;
+        }
+        default:
+            SCLogError("\"rawbytes\" needs a preceding content option");
+            SCReturnInt(-1);
+    }
+
+    SCReturnInt(0);
+}