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, 87 insertions, 0 deletions

diff --git a/src/decode-sctp.c b/src/decode-sctp.c
new file mode 100644
index 0000000..9a6c4e8
--- /dev/null
+++ b/src/decode-sctp.c
@@ -0,0 +1,87 @@
+/* Copyright (C) 2011-2021 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.
+ */
+
+/**
+ * \ingroup decode
+ *
+ * @{
+ */
+
+
+/**
+ * \file
+ *
+ * \author Eric Leblond <eric@regit.org>
+ *
+ * Decode SCTP
+ */
+
+#include "suricata-common.h"
+#include "decode.h"
+#include "decode-sctp.h"
+#include "decode-events.h"
+
+#include "util-validate.h"
+#include "util-unittest.h"
+#include "util-debug.h"
+#include "util-optimize.h"
+#include "flow.h"
+
+static int DecodeSCTPPacket(ThreadVars *tv, Packet *p, const uint8_t *pkt, uint16_t len)
+{
+    DEBUG_VALIDATE_BUG_ON(pkt == NULL);
+
+    if (unlikely(len < SCTP_HEADER_LEN)) {
+        ENGINE_SET_INVALID_EVENT(p, SCTP_PKT_TOO_SMALL);
+        return -1;
+    }
+
+    p->sctph = (SCTPHdr *)pkt;
+
+    SET_SCTP_SRC_PORT(p,&p->sp);
+    SET_SCTP_DST_PORT(p,&p->dp);
+
+    p->payload = (uint8_t *)pkt + sizeof(SCTPHdr);
+    p->payload_len = len - sizeof(SCTPHdr);
+
+    p->proto = IPPROTO_SCTP;
+
+    return 0;
+}
+
+int DecodeSCTP(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint16_t len)
+{
+    StatsIncr(tv, dtv->counter_sctp);
+
+    if (unlikely(DecodeSCTPPacket(tv, p,pkt,len) < 0)) {
+        CLEAR_SCTP_PACKET(p);
+        return TM_ECODE_FAILED;
+    }
+
+#ifdef DEBUG
+    SCLogDebug("SCTP sp: %" PRIu32 " -> dp: %" PRIu32,
+        SCTP_GET_SRC_PORT(p), SCTP_GET_DST_PORT(p));
+#endif
+
+    FlowSetupPacket(p);
+
+    return TM_ECODE_OK;
+}
+/**
+ * @}
+ */