43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
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#pragma once
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/** A packet to be transmitted or received over the VPN socket */
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#include <cstdlib>
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#include "ip_header.hpp"
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class VpnPacket {
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public:
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static const size_t VPN_HEADER_SIZE;
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VpnPacket(size_t mtu);
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~VpnPacket();
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/// Try to parse the packet as IPv6, return `false` upon failure.
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bool parse_as_ipv6();
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bool ipv6_parsed() const { return _ipv6_parsed; }
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const IPv6Header& get_ipv6_header() const { return _ipv6_header; }
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const char* get_payload() const { return _data + VPN_HEADER_SIZE; }
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char* get_payload() { return _data + VPN_HEADER_SIZE; }
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size_t get_payload_space() const {
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return _data_space - VPN_HEADER_SIZE; }
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size_t get_payload_size() const {
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return _data_size - VPN_HEADER_SIZE; }
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void set_payload_size(size_t payload_size) {
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_data_size = payload_size + VPN_HEADER_SIZE; }
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const char* get_data() const { return _data; }
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char* get_data() { return _data; }
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size_t get_data_space() const { return _data_space; }
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size_t get_data_size() const { return _data_size; }
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void set_data_size(size_t data_size) { _data_size = data_size; }
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private:
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char* _data;
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size_t _data_space, _data_size;
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bool _ipv6_parsed;
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IPv6Header _ipv6_header;
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};
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