Symbols ![]()
loading...
Files ![]()
loading...
ot::Checksum class
Implements IP checksum calculation and verification.
Syntax
class Checksum
{
friend class ChecksumTester;
public:
static Error VerifyMessageChecksum(const Message &aMessage, const Ip6::MessageInfo &aMessageInfo, uint8_t aIpProto);
static void UpdateMessageChecksum(Message &aMessage,
const Ip6::Address &aSource,
const Ip6::Address &aDestination,
uint8_t aIpProto);
static void UpdateMessageChecksum(Message &aMessage,
const Ip4::Address &aSource,
const Ip4::Address &aDestination,
uint8_t aIpProto);
static void UpdateIp4HeaderChecksum(Ip4::Header &aHeader);
private:
Checksum(void)
: mValue(0)
, mAtOddIndex(false)
{
}
uint16_t GetValue(void) const { return mValue; }
void AddUint8(uint8_t aUint8);
void AddUint16(uint16_t aUint16);
void AddData(const uint8_t *aBuffer, uint16_t aLength);
void WriteToMessage(uint16_t aOffset, Message &aMessage) const;
void Calculate(const Ip6::Address &aSource,
const Ip6::Address &aDestination,
uint8_t aIpProto,
const Message &aMessage);
void Calculate(const Ip4::Address &aSource,
const Ip4::Address &aDestination,
uint8_t aIpProto,
const Message &aMessage);
static constexpr uint16_t kValidRxChecksum = 0xffff;
uint16_t mValue;
bool mAtOddIndex;
};
Fields
Field
Declared as
uint16_t
References
Code
Location
Scope
Referrer