Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
#ifndef NEXT_HOP_HPP_ON0AKMBY
|
|
#define NEXT_HOP_HPP_ON0AKMBY
|
|
|
|
#include <vanetza/geonet/packet.hpp>
|
|
#include <vanetza/geonet/pending_packet.hpp>
|
|
#include <vanetza/geonet/pdu_variant.hpp>
|
|
#include <vanetza/net/mac_address.hpp>
|
|
|
|
namespace vanetza
|
|
{
|
|
namespace geonet
|
|
{
|
|
|
|
/**
|
|
* NextHop is the result of GeoNet forwarding algorithms.
|
|
* It may convey a destination link-layer address or one of the states "discarded" and "buffered".
|
|
*/
|
|
class NextHop
|
|
{
|
|
public:
|
|
using Packet = PendingPacket<GbcPdu, const MacAddress&>;
|
|
|
|
NextHop();
|
|
NextHop(NextHop&&) = default;
|
|
NextHop& operator=(NextHop&&) = default;
|
|
|
|
/**
|
|
* Test if forwarding decision is to discard the packet.
|
|
* \return true if discarded
|
|
*/
|
|
bool discarded() const;
|
|
|
|
/**
|
|
* Test if forwarding decided to buffer the packet.
|
|
* \return true if packet got buffered
|
|
*/
|
|
bool buffered() const;
|
|
|
|
/**
|
|
* Test if stored packet and link-layer address are valid.
|
|
* \return if valid
|
|
*/
|
|
bool valid() const;
|
|
|
|
/**
|
|
* Access stored link-layer address.
|
|
*
|
|
* The returned address is only meaningful if NextHop is valid.
|
|
* \return link-layer address
|
|
*/
|
|
const MacAddress& mac() const;
|
|
|
|
/**
|
|
* Prepare for immediate packet transmission (not discarded, not buffered).
|
|
*
|
|
* valid() will return true after invocation of this method.
|
|
* \param packet the packet to be transmitted
|
|
* \param destination link-layer destination address
|
|
*/
|
|
void transmit(Packet&& packet, const MacAddress& destination);
|
|
|
|
/**
|
|
* Set the NextHop state to discarded.
|
|
*/
|
|
void discard();
|
|
|
|
/**
|
|
* Set the NextHop state to buffered.
|
|
*/
|
|
void buffer();
|
|
|
|
/**
|
|
* Invoke further packet processing.
|
|
*
|
|
* It is safe to call this method though packet has been discarded or buffered.
|
|
* \return true if a valid packet (after previous transmit()) has been processed
|
|
*/
|
|
bool process() &&;
|
|
|
|
private:
|
|
enum class State { Valid, Discarded, Buffered };
|
|
|
|
State m_state;
|
|
MacAddress m_destination;
|
|
Packet m_packet;
|
|
};
|
|
|
|
} // namespace geonet
|
|
} // namespace vanetza
|
|
|
|
#endif /* NEXT_HOP_HPP_ON0AKMBY */
|
|
|