aboutsummaryrefslogtreecommitdiffstats
path: root/framework/src/suricata/src/decode-sctp.c
diff options
context:
space:
mode:
Diffstat (limited to 'framework/src/suricata/src/decode-sctp.c')
-rw-r--r--framework/src/suricata/src/decode-sctp.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/framework/src/suricata/src/decode-sctp.c b/framework/src/suricata/src/decode-sctp.c
new file mode 100644
index 00000000..2d493c66
--- /dev/null
+++ b/framework/src/suricata/src/decode-sctp.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 2011 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-unittest.h"
+#include "util-debug.h"
+#include "util-optimize.h"
+#include "flow.h"
+
+static int DecodeSCTPPacket(ThreadVars *tv, Packet *p, uint8_t *pkt, uint16_t len)
+{
+ 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 = pkt + sizeof(SCTPHdr);
+ p->payload_len = len - sizeof(SCTPHdr);
+
+ p->proto = IPPROTO_SCTP;
+
+ return 0;
+}
+
+int DecodeSCTP(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, uint8_t *pkt, uint16_t len, PacketQueue *pq)
+{
+ StatsIncr(tv, dtv->counter_sctp);
+
+ if (unlikely(DecodeSCTPPacket(tv, p,pkt,len) < 0)) {
+ p->sctph = NULL;
+ return TM_ECODE_FAILED;
+ }
+
+#ifdef DEBUG
+ SCLogDebug("SCTP sp: %" PRIu32 " -> dp: %" PRIu32,
+ SCTP_GET_SRC_PORT(p), SCTP_GET_DST_PORT(p));
+#endif
+
+ /* Flow is an integral part of us */
+ FlowHandlePacket(tv, dtv, p);
+
+ return TM_ECODE_OK;
+}
+/**
+ * @}
+ */