Infrastructure Interface

This module includes the platform abstraction for the adjacent infrastructure network interface.

Summary

Functions
`otPlatInfraIfHasAddress(uint32_t aInfraIfIndex, const otIp6Address *aAddress)`	`bool` This method tells whether an infra interface has the given IPv6 address assigned.
`otPlatInfraIfRecvIcmp6Nd(otInstance aInstance, uint32_t aInfraIfIndex, const otIp6Address aSrcAddress, const uint8_t *aBuffer, uint16_t aBufferLength)`	`void` The infra interface driver calls this method to notify OpenThread that an ICMPv6 Neighbor Discovery message is received.
`otPlatInfraIfSendIcmp6Nd(uint32_t aInfraIfIndex, const otIp6Address aDestAddress, const uint8_t aBuffer, uint16_t aBufferLength)`	`otError` This method sends an ICMPv6 Neighbor Discovery message on given infrastructure interface.
`otPlatInfraIfStateChanged(otInstance *aInstance, uint32_t aInfraIfIndex, bool aIsRunning)`	`otError` The infra interface driver calls this method to notify OpenThread of the interface state changes.

Functions

otPlatInfraIfHasAddress

bool otPlatInfraIfHasAddress(
  uint32_t aInfraIfIndex,
  const otIp6Address *aAddress
)

This method tells whether an infra interface has the given IPv6 address assigned.

Details

Parameters

`[in] aInfraIfIndex`	The index of the infra interface.
`[in] aAddress`	The IPv6 address.

Returns

TRUE if the infra interface has given IPv6 address assigned, FALSE otherwise.

otPlatInfraIfRecvIcmp6Nd

void otPlatInfraIfRecvIcmp6Nd(
  otInstance *aInstance,
  uint32_t aInfraIfIndex,
  const otIp6Address *aSrcAddress,
  const uint8_t *aBuffer,
  uint16_t aBufferLength
)

The infra interface driver calls this method to notify OpenThread that an ICMPv6 Neighbor Discovery message is received.

See RFC 4861: https://tools.ietf.org/html/rfc4861.

Details

Parameters

`[in] aInstance`	The OpenThread instance structure.
`[in] aInfraIfIndex`	The index of the infrastructure interface on which the ICMPv6 message is received.
`[in] aSrcAddress`	The source address this message is received from.
`[in] aBuffer`	The ICMPv6 message buffer.
`[in] aBufferLength`	The length of the ICMPv6 message buffer.

otPlatInfraIfSendIcmp6Nd

otError otPlatInfraIfSendIcmp6Nd(
  uint32_t aInfraIfIndex,
  const otIp6Address *aDestAddress,
  const uint8_t *aBuffer,
  uint16_t aBufferLength
)

This method sends an ICMPv6 Neighbor Discovery message on given infrastructure interface.

See RFC 4861: https://tools.ietf.org/html/rfc4861.

Note: Per RFC 4861, the implementation should send the message with IPv6 link-local source address of interface aInfraIfIndex and IP Hop Limit 255.

Details

Parameters

`[in] aInfraIfIndex`	The index of the infrastructure interface this message is sent to.
`[in] aDestAddress`	The destination address this message is sent to.
`[in] aBuffer`	The ICMPv6 message buffer. The ICMPv6 checksum is left zero and the platform should do the checksum calculate.
`[in] aBufferLength`	The length of the message buffer.

Return Values

`OT_ERROR_NONE`	Successfully sent the ICMPv6 message.
`OT_ERROR_FAILED`	Failed to send the ICMPv6 message.

otPlatInfraIfStateChanged

otError otPlatInfraIfStateChanged(
  otInstance *aInstance,
  uint32_t aInfraIfIndex,
  bool aIsRunning
)

The infra interface driver calls this method to notify OpenThread of the interface state changes.

It is fine for the platform to call to method even when the running state of the interface hasn't changed. In this case, the Routing Manager state is not affected.

Details

Parameters

`[in] aInstance`	The OpenThread instance structure.
`[in] aInfraIfIndex`	The index of the infrastructure interface.
`[in] aIsRunning`	A boolean that indicates whether the infrastructure interface is running.

Return Values

`OT_ERROR_NONE`	Successfully updated the infra interface status.
`OT_ERROR_INVALID_STATE`	The Routing Manager is not initialized.
`OT_ERROR_INVALID_ARGS`	The `aInfraIfIndex` doesn't match the infra interface the Routing Manager are initialized with.

Resources

OpenThread API Reference topics originate from the source code, available on GitHub. For more information, or to contribute to our documentation, refer to Resources.