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ot::Lowpan::MeshHeader class
Implements Mesh Header generation and processing.
Syntax
class MeshHeader
{
public:
void Init(uint16_t aSource, uint16_t aDestination, uint8_t aHopsLeft);
static bool IsMeshHeader(const FrameData &aFrameData);
Error ParseFrom(const uint8_t *aFrame, uint16_t aFrameLength, uint16_t &aHeaderLength);
Error ParseFrom(FrameData &aFrameData);
Error ParseFrom(const Message &aMessage);
Error ParseFrom(const Message &aMessage, uint16_t &aHeaderLength);
uint16_t GetHeaderLength(void) const;
uint8_t GetHopsLeft(void) const { return mHopsLeft; }
void DecrementHopsLeft(void);
uint16_t GetSource(void) const { return mSource; }
uint16_t GetDestination(void) const { return mDestination; }
Error AppendTo(FrameBuilder &aFrameBuilder) const;
Error AppendTo(Message &aMessage) const;
private:
static constexpr uint8_t kDispatch = 2 << 6;
static constexpr uint8_t kDispatchMask = 3 << 6;
static constexpr uint8_t kHopsLeftMask = 0x0f;
static constexpr uint8_t kSourceShort = 1 << 5;
static constexpr uint8_t kDestShort = 1 << 4;
static constexpr uint8_t kDeepHopsLeft = 0x0f;
static constexpr uint16_t kMinHeaderLength = sizeof(uint8_t) + sizeof(uint16_t) + sizeof(uint16_t);
static constexpr uint16_t kDeepHopsHeaderLength = kMinHeaderLength + sizeof(uint8_t);
uint16_t mSource;
uint16_t mDestination;
uint8_t mHopsLeft;
};
Fields
Field
Declared as
uint16_t
References
Code
Location
Scope
Referrer