Added PKTAP header.

include/tins/pdu.h

@@ -175,6 +175,7 @@ namespace Tins {
             PPI,
             IPSEC_AH,
             IPSEC_ESP,
+            PKTAP,
             USER_DEFINED_PDU = 1000
         };
         

include/tins/pktap.h

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2014, Matias Fontanini
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following disclaimer
+ *   in the documentation and/or other materials provided with the
+ *   distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef TINS_PKTAP_H
+#define TINS_PKTAP_H
+
+#include "pdu.h"
+
+namespace Tins {
+
+class PKTAP : public PDU {
+public:
+    /**
+     * This PDU's flag.
+     */
+    static const PDU::PDUType pdu_flag = PDU::PKTAP;
+
+    /**
+     * Default constructor.
+     */
+    PKTAP();
+
+    /**
+     * \brief Constructs a PKTAP object from a buffer and adds all 
+     * identifiable PDUs found in the buffer as children of this 
+     * one.
+     * 
+     * If there is not enough size for an IP header, a 
+     * malformed_packet exception is thrown.
+     * 
+     * \param buffer The buffer from which this PDU will be constructed.
+     * \param total_sz The total size of the buffer.
+     */
+    PKTAP(const uint8_t* buffer, uint32_t total_sz);
+
+    /**
+     * \brief Getter for the PDU's type.
+     * \sa PDU::pdu_type
+     */
+    PDUType pdu_type() const { return pdu_flag; }
+
+    /**
+     * \brief Returns the header size.
+     *
+     * This metod overrides PDU::header_size. 
+     * \sa PDU::header_size
+     */
+    uint32_t header_size() const;
+
+    /**
+     * \sa PDU::clone
+     */
+    PKTAP *clone() const {
+        return new PKTAP(*this);
+    }
+private:
+    struct pktap_header {
+        uint32_t length;
+        uint32_t next;
+        uint32_t dlt;
+        uint8_t pth_ifname[24];
+        uint32_t flags;
+        uint32_t protocol_family;
+        uint32_t header_length;
+        uint32_t trailer_length;
+        uint32_t pid;
+        uint8_t command[20];
+        uint32_t service_class;
+        uint16_t interface_type;
+        uint16_t interface_unit;
+        uint32_t epid;
+        uint8_t ecommand[20];
+    };
+
+    void write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent);
+
+
+    pktap_header header_;
+};
+
+} // Tins
+
+#endif // TINS_PKTAP_H