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ot::NetworkData::ServiceTlv class
Syntax
class ServiceTlv : public NetworkDataTlv
{
public:
static constexpr Type kType = kTypeService;
static constexpr uint32_t kThreadEnterpriseNumber = 44970;
void Init(uint8_t aServiceId, uint32_t aEnterpriseNumber, const ServiceData &aServiceData);
bool IsValid(void) const
{
uint8_t length = GetLength();
return (length >= sizeof(mFlagsServiceId)) &&
(length >= kMinLength + (IsThreadEnterprise() ? 0 : sizeof(uint32_t))) &&
(static_cast<uint16_t>(length) + sizeof(NetworkDataTlv) >=
CalculateSize(GetEnterpriseNumber(), GetServiceDataLength()));
}
uint8_t GetServiceId(void) const { return (mFlagsServiceId & kServiceIdMask); }
uint32_t GetEnterpriseNumber(void) const
{
return IsThreadEnterprise() ? static_cast<uint32_t>(kThreadEnterpriseNumber)
: BigEndian::HostSwap32(mShared.mEnterpriseNumber);
}
void GetServiceData(ServiceData &aServiceData) const
{
aServiceData.Init(GetServiceData(), GetServiceDataLength());
}
uint8_t GetServiceDataLength(void) const
{
return IsThreadEnterprise() ? mShared.mServiceDataLengthThreadEnterprise : mServiceDataLength;
}
uint8_t GetSubTlvsLength(void) { return GetLength() - GetFieldsLength(); }
void SetSubTlvsLength(uint8_t aLength) { SetLength(GetFieldsLength() + aLength); }
NetworkDataTlv *GetSubTlvs(void) { return reinterpret_cast<NetworkDataTlv *>(GetValue() + GetFieldsLength()); }
const NetworkDataTlv *GetSubTlvs(void) const
{
return reinterpret_cast<const NetworkDataTlv *>(GetValue() + GetFieldsLength());
}
static uint16_t CalculateSize(uint32_t aEnterpriseNumber, uint8_t aServiceDataLength)
{
return sizeof(NetworkDataTlv) + kMinLength + aServiceDataLength +
((aEnterpriseNumber == kThreadEnterpriseNumber) ? 0 : sizeof(uint32_t) );
}
private:
bool IsThreadEnterprise(void) const { return (mFlagsServiceId & kThreadEnterpriseFlag) != 0; }
const uint8_t *GetServiceData(void) const
{
return (IsThreadEnterprise() ? &mShared.mServiceDataLengthThreadEnterprise : &mServiceDataLength) +
sizeof(uint8_t);
}
uint8_t GetFieldsLength(void) const
{
return kMinLength + (IsThreadEnterprise() ? 0 : sizeof(uint32_t)) + GetServiceDataLength();
}
static constexpr uint8_t kThreadEnterpriseFlag = (1 << 7);
static constexpr uint8_t kServiceIdMask = 0xf;
static constexpr uint8_t kMinLength = sizeof(uint8_t) + sizeof(uint8_t);
uint8_t mFlagsServiceId;
union OT_TOOL_PACKED_FIELD
{
uint32_t mEnterpriseNumber;
uint8_t mServiceDataLengthThreadEnterprise;
} mShared;
uint8_t mServiceDataLength;
};
Fields
Field
Declared as
union OT_TOOL_PACKED_FIELD
{
uint32_t mEnterpriseNumber;
uint8_t mServiceDataLengthThreadEnterprise;
}
Related Functions
Found 10 other functions taking a ServiceTlv
argument:
Function
Description
Returns the next pointer to a matching Service TLV. Can be used to iterate over all Service TLVs that start with a given Service Data.
Returns the next pointer to a matching Thread Service TLV (with Thread Enterprise number). Can be used to iterate over all Thread Service TLVs that start with a given Service Data.
References
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Referrer
Class Tree
ot::NetworkData::ServiceTlv is inherited by 1 classes:
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