From a0aa2307322cd47bbf416810ac0292925e03be87 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:39:49 +0200 Subject: Adding upstream version 1:7.0.3. Signed-off-by: Daniel Baumann --- src/detect-rev.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 src/detect-rev.c (limited to 'src/detect-rev.c') diff --git a/src/detect-rev.c b/src/detect-rev.c new file mode 100644 index 0000000..dda513c --- /dev/null +++ b/src/detect-rev.c @@ -0,0 +1,71 @@ +/* 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 + * + * Implements the rev keyword + */ + +#include "suricata-common.h" +#include "detect.h" +#include "detect-rev.h" +#include "util-debug.h" +#include "util-error.h" + +static int DetectRevSetup (DetectEngineCtx *, Signature *, const 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 = "/rules/meta.html#rev-revision"; + sigmatch_table[DETECT_REV].Setup = DetectRevSetup; +} + +static int DetectRevSetup (DetectEngineCtx *de_ctx, Signature *s, const char *rawstr) +{ + unsigned long rev = 0; + char *endptr = NULL; + rev = strtoul(rawstr, &endptr, 10); + if (endptr == NULL || *endptr != '\0') { + SCLogError("invalid character as arg " + "to rev keyword"); + goto error; + } + if (rev >= UINT_MAX) { + SCLogError("rev value to high, max %u", UINT_MAX); + goto error; + } + if (rev == 0) { + SCLogError("rev value 0 is invalid"); + goto error; + } + if (s->rev > 0) { + SCLogError("duplicated 'rev' keyword detected"); + goto error; + } + + s->rev = (uint32_t)rev; + + return 0; + + error: + return -1; +} \ No newline at end of file -- cgit v1.2.3