Support for ESP-IDF V5.3

[pluzmedia]

Hi,

Will this library support ESP-IDF version 5.3?

[limpens]

No problems, you just need to add PPP support.
CONFIG_LWIP_PPP_SUPPORT=y

[pluzmedia]

When setting the wireguard_config_t like below:

wg_config.allowed_ip = "10.0.0.2"; wg_config.allowed_ip_mask = "255.255.255.255"; wg_config.endpoint = "endpoint"; wg_config.port = 51820; wg_config.persistent_keepalive = 25;
ESP32 crashes during esp_wireguard_connect().

However, when using:

wg_config.allowed_ip = "0.0.0.0"; wg_config.allowed_ip_mask = "0.0.0.0";
No crash, but WireGuard tunnel does not establish connection (no handshake).

🎯 Expected Behavior

Setting a static IP (10.0.0.2/32) with mask (255.255.255.255) should work properly.

WireGuard connection should establish successfully without crash.

🛠 Environment Details

ESP-IDF Version: v5.3

esp_wireguard commit: latest (main branch)

Board: ESP32 WROOM (16MB flash)

Flash Size: 16MB

Python Version: 3.8.7

Host OS: Windows 10

🧪 Additional Observations

getaddrinfo() resolves the WireGuard endpoint successfully.

Crash seems related to handling IP/mask assignment in esp_wireguard_netif_create().

When using 0.0.0.0/0.0.0.0 (default), the crash disappears but tunnel is not usable.

Please verify correct handling of allowed_ip and allowed_ip_mask.

Prevent crashes during esp_wireguard_connect.

Clarify correct way to set single IP tunnels (/32) in examples or documentation.

✅ Thank you for your support!
Looking forward to a fix.

[limpens]

Did you check this?