Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 117 insertions, 0 deletions

diff --git a/src/util-host-info.c b/src/util-host-info.c
new file mode 100644
index 0000000..c0dd93b
--- /dev/null
+++ b/src/util-host-info.c
@@ -0,0 +1,117 @@
+/* Copyright (C) 2014 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 Eric Leblond <eric@regit.org>
+ *
+ * Get information on running host
+ *
+ */
+
+#include "suricata-common.h"
+#include "util-host-info.h"
+#include "util-byte.h"
+#include "util-debug.h"
+
+#ifndef OS_WIN32
+#include <sys/utsname.h>
+
+#define VERSION_REGEX "^([0-9]+)\\.([0-9]+)"
+
+int SCKernelVersionIsAtLeast(int major, int minor)
+{
+    struct utsname kuname;
+    pcre2_code *version_regex;
+    pcre2_match_data *version_regex_match;
+    int en;
+    int opts = 0;
+    PCRE2_SIZE eo;
+    int ret;
+    int kmajor, kminor;
+    PCRE2_UCHAR **list;
+
+    /* get local version */
+    if (uname(&kuname) != 0) {
+        SCLogError("Invalid uname return: %s", strerror(errno));
+        return 0;
+    }
+
+    SCLogDebug("Kernel release is '%s'", kuname.release);
+
+    version_regex =
+            pcre2_compile((PCRE2_SPTR8)VERSION_REGEX, PCRE2_ZERO_TERMINATED, opts, &en, &eo, NULL);
+    if (version_regex == NULL) {
+        PCRE2_UCHAR errbuffer[256];
+        pcre2_get_error_message(en, errbuffer, sizeof(errbuffer));
+        SCLogError("pcre2 compile of \"%s\" failed at "
+                   "offset %d: %s",
+                VERSION_REGEX, (int)eo, errbuffer);
+        goto error;
+    }
+    version_regex_match = pcre2_match_data_create_from_pattern(version_regex, NULL);
+
+    ret = pcre2_match(version_regex, (PCRE2_SPTR8)kuname.release, strlen(kuname.release), 0, 0,
+            version_regex_match, NULL);
+
+    if (ret < 0) {
+        SCLogError("Version did not cut");
+        goto error;
+    }
+
+    if (ret < 3) {
+        SCLogError("Version major and minor not found (ret %d)", ret);
+        goto error;
+    }
+
+    pcre2_substring_list_get(version_regex_match, &list, NULL);
+
+    bool err = false;
+    if (StringParseInt32(&kmajor, 10, 0, (const char *)list[1]) < 0) {
+        SCLogError("Invalid value for kmajor: '%s'", list[1]);
+        err = true;
+    }
+    if (StringParseInt32(&kminor, 10, 0, (const char *)list[2]) < 0) {
+        SCLogError("Invalid value for kminor: '%s'", list[2]);
+        err = true;
+    }
+
+    pcre2_substring_list_free((PCRE2_SPTR *)list);
+    pcre2_match_data_free(version_regex_match);
+    pcre2_code_free(version_regex);
+
+    if (err)
+        goto error;
+
+    if (kmajor > major)
+        return 1;
+    if (kmajor == major && kminor >= minor)
+        return 1;
+error:
+    return 0;
+}
+
+#else /* OS_WIN32 */
+
+int SCKernelVersionIsAtLeast(int major, int minor)
+{
+    SCLogError("OS compare is not supported on Windows");
+    return 0;
+}
+
+#endif /* OS_WIN32 */