1 files changed, 83 insertions, 0 deletions
diff --git a/framework/src/suricata/src/detect-rev.c b/framework/src/suricata/src/detect-rev.c
new file mode 100644
index 00000000..6306f6cc
--- /dev/null
+++ b/framework/src/suricata/src/detect-rev.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 2007-2010 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 the rev keyword
+ */
+
+#include "suricata-common.h"
+#include "detect.h"
+#include "util-debug.h"
+#include "util-error.h"
+
+static int DetectRevSetup (DetectEngineCtx *, Signature *, char *);
+
+void DetectRevRegister (void)
+{
+    sigmatch_table[DETECT_REV].name = "rev";
+    sigmatch_table[DETECT_REV].desc = "set version of the rule";
+    sigmatch_table[DETECT_REV].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Meta-settings#Rev-Revision";
+    sigmatch_table[DETECT_REV].Match = NULL;
+    sigmatch_table[DETECT_REV].Setup = DetectRevSetup;
+    sigmatch_table[DETECT_REV].Free  = NULL;
+    sigmatch_table[DETECT_REV].RegisterTests = NULL;
+}
+
+static int DetectRevSetup (DetectEngineCtx *de_ctx, Signature *s, char *rawstr)
+{
+    char *str = rawstr;
+    char dubbed = 0;
+
+    /* strip "'s */
+    if (rawstr[0] == '\"' && rawstr[strlen(rawstr)-1] == '\"') {
+        str = SCStrdup(rawstr+1);
+        if (unlikely(str == NULL))
+            return -1;
+
+        str[strlen(rawstr)-2] = '\0';
+        dubbed = 1;
+    }
+
+    unsigned long rev = 0;
+    char *endptr = NULL;
+    rev = strtoul(rawstr, &endptr, 10);
+    if (endptr == NULL || *endptr != '\0') {
+        SCLogError(SC_ERR_INVALID_SIGNATURE, "invalid character as arg "
+                   "to rev keyword");
+        goto error;
+    }
+    if (rev >= UINT_MAX) {
+        SCLogError(SC_ERR_INVALID_NUMERIC_VALUE, "rev value to high, max %u", UINT_MAX);
+        goto error;
+    }
+
+    s->rev = (uint32_t)rev;
+
+    if (dubbed)
+        SCFree(str);
+    return 0;
+
+ error:
+    if (dubbed)
+        SCFree(str);
+    return -1;
+}
+