| 1 | /* |
| 2 | The software in this package is distributed under the GNU General |
| 3 | Public License version 2 (with a special exception described below). |
| 4 | |
| 5 | A copy of GNU General Public License (GPL) is included in this distribution, |
| 6 | in the file COPYING.GPL. |
| 7 | |
| 8 | As a special exception, if other files instantiate templates or use macros |
| 9 | or inline functions from this file, or you compile this file and link it |
| 10 | with other works to produce a work based on this file, this file |
| 11 | does not by itself cause the resulting work to be covered |
| 12 | by the GNU General Public License. |
| 13 | |
| 14 | However the source code for this file must still be made available |
| 15 | in accordance with section (3) of the GNU General Public License. |
| 16 | |
| 17 | This exception does not invalidate any other reasons why a work based |
| 18 | on this file might be covered by the GNU General Public License. |
| 19 | |
| 20 | Christian Herdtweck, Intra2net AG 2015 |
| 21 | Based on an example in Boost Documentation (by Christopher M. Kohlhoff) |
| 22 | and adaptation by Guilherme M. Ferreira |
| 23 | */ |
| 24 | |
| 25 | #ifndef ICMP_PACKET_FACTORY_H |
| 26 | #define ICMP_PACKET_FACTORY_H |
| 27 | |
| 28 | #include <stdint.h> |
| 29 | |
| 30 | #include <iostream> |
| 31 | |
| 32 | #include <boost/asio.hpp> |
| 33 | |
| 34 | #include "icmp/icmppacket.h" |
| 35 | |
| 36 | |
| 37 | enum DumpMode { |
| 38 | DUMP_NEVER = 0, |
| 39 | DUMP_IF_ERROR = 1, |
| 40 | DUMP_ALWAYS = 2 |
| 41 | }; |
| 42 | |
| 43 | //----------------------------------------------------------------------------- |
| 44 | // IcmpPacketFactory |
| 45 | //----------------------------------------------------------------------------- |
| 46 | |
| 47 | /** |
| 48 | * @brief Class which constructs ICMP Packets, hiding from the class users the |
| 49 | * underlying details on how to build each packet. |
| 50 | * |
| 51 | * @param dump_mode: 0 to never dump, 1 to dump in case of parsing trouble, |
| 52 | * 2 to always dump |
| 53 | */ |
| 54 | class IcmpPacketFactory |
| 55 | { |
| 56 | public: |
| 57 | /// directory and file name start used to dump packets; |
| 58 | /// will be concatenated with time and pattern that ensures unique file name |
| 59 | static std::string DumpFilePrefix; |
| 60 | static DumpMode PacketDumpMode; |
| 61 | |
| 62 | static void dump_packet(const std::string &data); |
| 63 | static void dump_packet(const IcmpPacket &packet); |
| 64 | |
| 65 | static IcmpPacketItem create_icmp_packet( |
| 66 | const boost::asio::ip::icmp::socket::protocol_type &protocol, |
| 67 | std::istream &is |
| 68 | ); |
| 69 | static IcmpPacketItem create_icmp_packet_echo_request( |
| 70 | const boost::asio::ip::icmp::socket::protocol_type &protocol, |
| 71 | const uint16_t identifier, |
| 72 | const uint16_t sequence_number |
| 73 | ); |
| 74 | }; |
| 75 | |
| 76 | #endif // ICMP_PACKET_FACTORY_H |