ssue with Setting Leader Weight and Router Downgrade Threshold in OpenThread (IDFGH-14734) (TZ-1572)

[donaldkohcw]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

Hi,

I am currently working on an OpenThread using ESP-IDF v5.3.2 and I am trying to set the leader weight and router downgrade threshold in my OpenThread network. However, I am encountering some issues with the otOperationalDataset structure. Is following function supported in esp ot api?

// Set the leader weight to 255
otThreadSetLocalLeaderWeight(esp_openthread_get_instance(), 255);

// Set the RouterDowngradeThreshold to 0
otThreadSetRouterDowngradeThreshold(esp_openthread_get_instance(), 0);

I got following error:

C:/Espressif/frameworks/esp-idf-v5.3.2/examples/openthread/ot_cli_lead/main/esp_ot_cli.c:106:24: error: 'otOperationalDatasetComponents' has no member named 'mIsLeaderWeightPresent'
106 | dataset.mComponents.mIsLeaderWeightPresent = true;
| ^
C:/Espressif/frameworks/esp-idf-v5.3.2/examples/openthread/ot_cli_lead/main/esp_ot_cli.c:107:12: error: 'otOperationalDataset' has no member named 'mLeaderWeight'
107 | dataset.mLeaderWeight = 255;
| ^
C:/Espressif/frameworks/esp-idf-v5.3.2/examples/openthread/ot_cli_lead/main/esp_ot_cli.c:110:24: error: 'otOperationalDatasetComponents' has no member named 'mIsRouterDowngradeThresholdPresent'
110 | dataset.mComponents.mIsRouterDowngradeThresholdPresent = true;
| ^
C:/Espressif/frameworks/esp-idf-v5.3.2/examples/openthread/ot_cli_lead/main/esp_ot_cli.c:111:12: error: 'otOperationalDataset' has no member named 'mRouterDowngradeThreshold'
111 | dataset.mRouterDowngradeThreshold = 0;

Thanks,

[donaldkohcw]

Apart from that, I tried otCliInputLine("channel");, and it responded properly. However, when I used a command with a space, such as otCliInputLine("leaderweight 255");, the program hangs with the following error:

Guru Meditation Error: Core 0 panic'ed (Store access fault). Exception was unhandled.

Setting breakpoint at 0x42065622 and returning...
--- 0x42065622: ot::Utils::CmdLineParser::ParseCmd(char*, ot::Utils::CmdLineParser::Arg*, unsigned char) at C:/Espressif/frameworks/esp-idf-v5.3.2/components/openthread/openthread/src/core/utils/parse_cmdline.cpp:66
"
Thanks.

[donaldkohcw]

"Hi, Shu Chen,

I would like to follow up if there is any update? The issue in otCliInputLine("leaderweight 255"), processing the space. How can we work around this?

Thanks.

[zwx1995esp]

Hi, @donaldkohcw I have a question: why you need to call the function otCliInputLine directly? This function is called by ot_cli_task to handle command input by the console.

If you really need to call this function in some other tasks, please acquire the ot lock first.

[donaldkohcw]

Hi Zhangwx,

I am trying to use the OT CLI API in the code, such as leaderweight and udp, rather than in the terminal. Can you advise how can i do so on all of the ot cli api commands?

Thanks!

[zwx1995esp]

Hi, @donaldkohcw The recommanded way is that calling the Openthread APIs directly. As for the previous issue you shared:

C:/Espressif/frameworks/esp-idf-v5.3.2/examples/openthread/ot_cli_lead/main/esp_ot_cli.c:106:24: error: 'otOperationalDatasetComponents' has no member named 'mIsLeaderWeightPresent'
106 | dataset.mComponents.mIsLeaderWeightPresent = true;

So, did you add these codes in your own application? I did not see the member variable mIsLeaderWeightPresent for the struct otOpeartionDataset. Could you please check? If these codes are added by accident, please remove them.

106 | dataset.mComponents.mIsLeaderWeightPresent = true;
107 | dataset.mLeaderWeight = 255;
110 | dataset.mComponents.mIsRouterDowngradeThresholdPresent = true;
111 | dataset.mRouterDowngradeThreshold = 0;

These two APIs can be called to set the related configurations you need, (Notice: if you call these functions out of thread task context, please also acquire the ot lock mentioned in the previous comment):

// Set the leader weight to 255
otThreadSetLocalLeaderWeight(esp_openthread_get_instance(), 255);

// Set the RouterDowngradeThreshold to 0
otThreadSetRouterDowngradeThreshold(esp_openthread_get_instance(), 0);

[dk77148]

Hi @zwx1995esp,

Thanks for spotting it and for the guide! 👍 I got this running.

Regards,
Don

[zwx1995esp]

Hi, @dk77148 Great! Since your issue has beed fixed, I will close this Issue. If you encounter any issues related, feel free to re-open it.