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, 238 insertions, 0 deletions

diff --git a/src/decode-raw.c b/src/decode-raw.c
new file mode 100644
index 0000000..1a64f1a
--- /dev/null
+++ b/src/decode-raw.c
@@ -0,0 +1,238 @@
+/* Copyright (C) 2007-2021 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 William Metcalf <william.metcalf@gmail.com>
+ *
+ * Decode RAW
+ */
+
+#include "suricata-common.h"
+#include "decode-raw.h"
+#include "decode.h"
+#include "decode-events.h"
+
+#include "util-validate.h"
+#include "util-unittest.h"
+#include "util-debug.h"
+
+int DecodeRaw(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint32_t len)
+{
+    DEBUG_VALIDATE_BUG_ON(pkt == NULL);
+
+    StatsIncr(tv, dtv->counter_raw);
+
+    /* If it is ipv4 or ipv6 it should at least be the size of ipv4 */
+    if (unlikely(len < IPV4_HEADER_LEN)) {
+        ENGINE_SET_INVALID_EVENT(p, IPV4_PKT_TOO_SMALL);
+        return TM_ECODE_FAILED;
+    }
+
+
+
+    if (IP_GET_RAW_VER(pkt) == 4) {
+        if (unlikely(GET_PKT_LEN(p) > USHRT_MAX)) {
+            return TM_ECODE_FAILED;
+        }
+        SCLogDebug("IPV4 Packet");
+        DecodeIPV4(tv, dtv, p, GET_PKT_DATA(p), (uint16_t)(GET_PKT_LEN(p)));
+    } else if (IP_GET_RAW_VER(pkt) == 6) {
+        if (unlikely(GET_PKT_LEN(p) > USHRT_MAX)) {
+            return TM_ECODE_FAILED;
+        }
+        SCLogDebug("IPV6 Packet");
+        DecodeIPV6(tv, dtv, p, GET_PKT_DATA(p), (uint16_t)(GET_PKT_LEN(p)));
+    } else {
+        SCLogDebug("Unknown ip version %d", IP_GET_RAW_VER(pkt));
+        ENGINE_SET_EVENT(p,IPRAW_INVALID_IPV);
+    }
+    return TM_ECODE_OK;
+}
+
+#ifdef UNITTESTS
+#include "util-unittest-helper.h"
+#include "packet.h"
+
+/** DecodeRawtest01
+ *  \brief Valid Raw packet
+ *  \retval 0 Expected test value
+ */
+static int DecodeRawTest01 (void)
+{
+
+    /* IPV6/TCP/no eth header */
+    uint8_t raw_ip[] = {
+        0x60, 0x00, 0x00, 0x00, 0x00, 0x28, 0x06, 0x40,
+        0x20, 0x01, 0x06, 0x18, 0x04, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x51, 0x99, 0xcc, 0x70,
+        0x20, 0x01, 0x06, 0x18, 0x00, 0x01, 0x80, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
+        0x8c, 0x9b, 0x00, 0x50, 0x6a, 0xe7, 0x07, 0x36,
+        0x00, 0x00, 0x00, 0x00, 0xa0, 0x02, 0x16, 0x30,
+        0x29, 0x9c, 0x00, 0x00, 0x02, 0x04, 0x05, 0x8c,
+        0x04, 0x02, 0x08, 0x0a, 0x00, 0xdd, 0x1a, 0x39,
+        0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x02 };
+    Packet *p = PacketGetFromAlloc();
+    if (unlikely(p == NULL))
+        return 0;
+    ThreadVars tv;
+    DecodeThreadVars dtv;
+
+    memset(&dtv, 0, sizeof(DecodeThreadVars));
+    memset(&tv,  0, sizeof(ThreadVars));
+
+    if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
+    SCFree(p);
+    return 0;
+    }
+
+    FlowInitConfig(FLOW_QUIET);
+
+    DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p));
+    if (p->ip6h == NULL) {
+        printf("expected a valid ipv6 header but it was NULL: ");
+        FlowShutdown();
+        SCFree(p);
+        return 0;
+    }
+
+    PacketRecycle(p);
+    FlowShutdown();
+    SCFree(p);
+    return 1;
+
+}
+/** DecodeRawtest02
+ *  \brief Valid Raw packet
+ *  \retval 0 Expected test value
+ */
+static int DecodeRawTest02 (void)
+{
+
+    /* IPV4/TCP/no eth header */
+    uint8_t raw_ip[] = {
+        0x45, 0x00, 0x00, 0x30, 0x00, 0xad, 0x40, 0x00,
+        0x7f, 0x06, 0xac, 0xc5, 0xc0, 0xa8, 0x67, 0x02,
+        0xc0, 0xa8, 0x66, 0x02, 0x0b, 0xc7, 0x00, 0x50,
+        0x1d, 0xb3, 0x12, 0x37, 0x00, 0x00, 0x00, 0x00,
+        0x70, 0x02, 0x40, 0x00, 0xb8, 0xc8, 0x00, 0x00,
+        0x02, 0x04, 0x05, 0xb4, 0x01, 0x01, 0x04, 0x02 };
+
+    Packet *p = PacketGetFromAlloc();
+    if (unlikely(p == NULL))
+        return 0;
+    ThreadVars tv;
+    DecodeThreadVars dtv;
+
+    memset(&dtv, 0, sizeof(DecodeThreadVars));
+    memset(&tv,  0, sizeof(ThreadVars));
+
+    if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
+    SCFree(p);
+    return 0;
+    }
+
+    FlowInitConfig(FLOW_QUIET);
+
+    DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p));
+    if (p->ip4h == NULL) {
+        printf("expected a valid ipv4 header but it was NULL: ");
+        PacketRecycle(p);
+        FlowShutdown();
+        SCFree(p);
+        return 0;
+    }
+
+    PacketRecycle(p);
+    FlowShutdown();
+    SCFree(p);
+    return 1;
+}
+/** DecodeRawtest03
+ *  \brief Valid Raw packet
+ *  \retval 0 Expected test value
+ */
+static int DecodeRawTest03 (void)
+{
+
+    /* IPV13 */
+    uint8_t raw_ip[] = {
+        0xdf, 0x00, 0x00, 0x3d, 0x49, 0x42, 0x40, 0x00,
+        0x40, 0x06, 0xcf, 0x8a, 0x0a, 0x1f, 0x03, 0xaf,
+        0x0a, 0x1f, 0x0a, 0x02, 0xa5, 0xe7, 0xde, 0xad,
+        0x00, 0x0c, 0xe2, 0x0e, 0x8b, 0xfe, 0x0c, 0xe7,
+        0x80, 0x18, 0x00, 0xb7, 0xaf, 0xeb, 0x00, 0x00,
+        0x01, 0x01, 0x08, 0x0a, 0x00, 0x08, 0xab, 0x4f,
+        0x34, 0x40, 0x67, 0x31, 0x3b, 0x63, 0x61, 0x74,
+        0x20, 0x6b, 0x65, 0x79, 0x3b };
+
+    Packet *p = PacketGetFromAlloc();
+    if (unlikely(p == NULL))
+        return 0;
+    ThreadVars tv;
+    DecodeThreadVars dtv;
+
+    memset(&dtv, 0, sizeof(DecodeThreadVars));
+    memset(&tv,  0, sizeof(ThreadVars));
+
+    if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
+        SCFree(p);
+        return 0;
+    }
+
+    FlowInitConfig(FLOW_QUIET);
+
+    DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p));
+    if (!ENGINE_ISSET_EVENT(p,IPRAW_INVALID_IPV)) {
+        printf("expected IPRAW_INVALID_IPV to be set but it wasn't: ");
+        FlowShutdown();
+        SCFree(p);
+        return 0;
+    }
+    PacketRecycle(p);
+    FlowShutdown();
+    SCFree(p);
+    return 1;
+}
+
+#endif /* UNITTESTS */
+
+/**
+ * \brief Registers Raw unit tests
+ * \todo More Raw tests
+ */
+void DecodeRawRegisterTests(void)
+{
+#ifdef UNITTESTS
+    UtRegisterTest("DecodeRawTest01", DecodeRawTest01);
+    UtRegisterTest("DecodeRawTest02", DecodeRawTest02);
+    UtRegisterTest("DecodeRawTest03", DecodeRawTest03);
+#endif /* UNITTESTS */
+}
+/**
+ * @}
+ */