# otHistoryTrackerMessageInfo Struct Reference # otHistoryTrackerMessageInfo `#include ` Represents a RX/TX IPv6 message info. ## Summary Some of the fields in this struct are applicable to a RX message or a TX message only, e.g., `mAveRxRss` is the average RSS of all fragment frames that form a received message and is only applicable for a RX message. | ### Public attributes || |---|---| | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1abe2896aea03c13efc082979af3160b9e` | `int8_t` RSS of received message or OT_RADIO_INVALID_RSSI if not known. | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1af515328ea2fc62d1fa0a303f37d2575e` | `uint16_t` Message checksum (valid only for UDP/TCP/ICMP6). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a158d0e1ab0b6aa7714cb36d00472d718` | `https://openthread.io/reference/struct/ot-sock-addr` Destination IPv6 address and port (if UDP/TCP). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a4f1d8d3cf77fdfc788823b7787b3db02` | `uint8_t` ICMP6 type if msg is ICMP6, zero otherwise (`OT_ICMP6_TYPE_*` enumeration). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a759404894cd75767f901b5f2be58b7f1` | `uint8_t` IP Protocol number (`OT_IP6_PROTO_*` enumeration). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1ac6105c608e0456293257089382693ff2` | `bool` Indicates whether msg used link security. | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a16cd6dc92b3bd323030dc1e656a5d092` | `uint16_t` RLOC16 of neighbor which sent/received the msg (`0xfffe` if no RLOC16). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1aa1b385246679c18b70835383bd7eaf5d` | `uint16_t` IPv6 payload length (exclude IP6 header itself). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1aaa53804b65f0bd5c1314f3f2710cf706` | `uint8_t` Message priority (`OT_HISTORY_TRACKER_MSG_PRIORITY_*` enumeration). | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1acd5b0bed053e1bcaed57e14827d80e86` | `bool` Indicates whether msg was sent/received over a 15.4 radio link. | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a836ac3b5fd29d0a4ef4ae13ab3f9b046` | `bool` Indicates whether msg was sent/received over a TREL radio link. | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1af92ca77ddf944d89f92cdf1057401c84` | `https://openthread.io/reference/struct/ot-sock-addr` Source IPv6 address and port (if UDP/TCP) | | `https://openthread.io/reference/struct/ot-history-tracker-message-info#structot_history_tracker_message_info_1a56894cb996cc00afcacc56973e8210b8` | `bool` Indicates TX success (e.g., ack received). Applicable for TX msg only. | ## Public attributes ### mAveRxRss ``` int8_t otHistoryTrackerMessageInfo::mAveRxRss ``` RSS of received message or OT_RADIO_INVALID_RSSI if not known. ### mChecksum ``` uint16_t otHistoryTrackerMessageInfo::mChecksum ``` Message checksum (valid only for UDP/TCP/ICMP6). ### mDestination ``` otSockAddr otHistoryTrackerMessageInfo::mDestination ``` Destination IPv6 address and port (if UDP/TCP). ### mIcmp6Type ``` uint8_t otHistoryTrackerMessageInfo::mIcmp6Type ``` ICMP6 type if msg is ICMP6, zero otherwise (`OT_ICMP6_TYPE_*` enumeration). ### mIpProto ``` uint8_t otHistoryTrackerMessageInfo::mIpProto ``` IP Protocol number (`OT_IP6_PROTO_*` enumeration). ### mLinkSecurity ``` bool otHistoryTrackerMessageInfo::mLinkSecurity ``` Indicates whether msg used link security. ### mNeighborRloc16 ``` uint16_t otHistoryTrackerMessageInfo::mNeighborRloc16 ``` RLOC16 of neighbor which sent/received the msg (`0xfffe` if no RLOC16). ### mPayloadLength ``` uint16_t otHistoryTrackerMessageInfo::mPayloadLength ``` IPv6 payload length (exclude IP6 header itself). ### mPriority ``` uint8_t otHistoryTrackerMessageInfo::mPriority ``` Message priority (`OT_HISTORY_TRACKER_MSG_PRIORITY_*` enumeration). ### mRadioIeee802154 ``` bool otHistoryTrackerMessageInfo::mRadioIeee802154 ``` Indicates whether msg was sent/received over a 15.4 radio link. ### mRadioTrelUdp6 ``` bool otHistoryTrackerMessageInfo::mRadioTrelUdp6 ``` Indicates whether msg was sent/received over a TREL radio link. ### mSource ``` otSockAddr otHistoryTrackerMessageInfo::mSource ``` Source IPv6 address and port (if UDP/TCP) ### mTxSuccess ``` bool otHistoryTrackerMessageInfo::mTxSuccess ``` Indicates TX success (e.g., ack received). Applicable for TX msg only. ## Resources OpenThread API Reference topics originate from the source code, available on [GitHub](https://github.com/openthread/openthread/tree/main/include/openthread). For more information, or to contribute to our documentation, refer to [Resources](https://openthread.io/resources).