rudimentary eap packet parsing and dot11_action

include/tins/dot11.h

@@ -40,5 +40,6 @@
 #include <tins/dot11/dot11_auth.h>
 #include <tins/dot11/dot11_probe.h>
 #include <tins/dot11/dot11_control.h>
+#include <tins/dot11/dot11_action.h>
 
 #endif // TINS_DOT_11

include/tins/dot11/dot11_action.h

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2017, 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.
+ *
+ */    
+
+#include <tins/config.h>
+
+#if !defined(TINS_DOT11_DOT11_ACTION_H) && defined(TINS_HAVE_DOT11)
+#define TINS_DOT11_DOT11_ACTION_H
+
+#include <tins/dot11/dot11_mgmt.h>
+#include <tins/macros.h>
+
+namespace Tins {
+
+/**
+ * \brief Represents an IEEE 802.11 Action.
+ *
+ */
+class TINS_API Dot11Action : public Dot11ManagementFrame {
+public:
+    /**
+     * \brief This PDU's flag.
+     */
+    static const PDU::PDUType pdu_flag = PDU::DOT11_ACTION;
+
+    /**
+     * \brief Enum for the different action categories.
+     *
+     */
+    enum ActionCategories {
+        SPECTRUMMANAGEMENT = 0,
+        QOS,
+        DLS,
+        BLOCKACK,
+        PUBLIC,
+        RADIOMEASUREMENT,
+        FASTBSS,
+        HT,
+        SAQUERY,
+        PROTECTEDPUBLIC,
+        VENDORSPECIFIC=127
+    };
+
+    /**
+     * \brief Constructor for creating a 802.11 Action.
+     *
+     * Constructs a 802.11 Action taking destination, source and a category
+     *
+     * \param dst_hw_addr The destination hardware address.
+     * \param src_hw_addr The source hardware address.
+     * \param category the action category
+     */
+    Dot11Action(const address_type& dst_hw_addr = address_type(),
+                const address_type& src_hw_addr = address_type(),
+                ActionCategories category = ActionCategories::PUBLIC);
+
+    /**
+     * \brief Constructs a Dot11Action object from a buffer and adds
+     * all identifiable PDUs found in the buffer as children of this 
+     * one.
+     *
+     * If the next PDU is not recognized, then a RawPDU is used.
+     * 
+     * If there is not enough size for the header in the buffer
+     * or the input data is malformed, 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.
+     */
+    Dot11Action(const uint8_t* buffer, uint32_t total_sz);
+
+    /**
+     * \brief Getter for the category field.
+     *
+     * \return The stored category value.
+     */
+    ActionCategories category() const {
+        return static_cast<ActionCategories>(body_.category);
+    }
+
+    /**
+     * \brief Setter for the category field.
+     *
+     * \param new_category The category to be set.
+     */
+    void category(ActionCategories new_category);
+
+    uint32_t header_size() const;
+
+    /**
+     * \brief Check whether this PDU matches the specified flag.
+     * \param flag The flag to match
+     * \sa PDU::matches_flag
+     */
+    bool matches_flag(PDUType flag) const {
+       return flag == pdu_flag || Dot11ManagementFrame::matches_flag(flag);
+    }
+
+    /**
+     * \brief Clones this PDU.
+     *
+     * \sa PDU::clone
+     */
+    Dot11Action* clone() const {
+        return new Dot11Action(*this);
+    }
+
+    /**
+     * \brief Getter for the PDU's type.
+     * \sa PDU::pdu_type
+     */
+    PDUType pdu_type() const {
+        return pdu_flag;
+    }
+private:
+    TINS_BEGIN_PACK
+    struct dot11_action_body {
+        uint8_t category;
+    } TINS_END_PACK;
+
+    void write_fixed_parameters(Memory::OutputMemoryStream& stream);
+
+    dot11_action_body body_;
+};
+
+} // namespace Tins
+
+#endif // TINS_DOT11_DOT11_ACTION_H

include/tins/dot11/dot11_base.h

@@ -148,7 +148,9 @@ class TINS_API Dot11 : public PDU {
         ATIM = 9,
         DISASSOC = 10,
         AUTH = 11,
-        DEAUTH = 12
+        DEAUTH = 12,
+        ACTION = 13
+
     };
 
     /**