EAP-TLS issue: join_ent failed after leave_ent

[AxLi_1746341]

Hi  grsr​

After apply the patch from below link

https://community.cypress.com/thread/35745

I have chance to get EAP-TLS work.

But I found the join_ent fails after leave_ent.

It seems not reliable...

Can you check the issue?

With FreeRTOS build:

> join_ent LAB-WPA2-ENT eap_tls bob hello eap mschapv2 wpa2

Joining : LAB-WPA2-ENT

Successfully joined : LAB-WPA2-ENT

Obtaining IPv4 address via DHCP

IPv4 Network ready IP: 192.168.1.111

Successfully retrieved the session information 0

> leave_ent

leave test: ok

> join_ent LAB-WPA2-ENT eap_tls bob hello eap mschapv2 wpa2

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Join result 1055:

failed

  ! mbedtls_ssl_handshake returned -0x2

Error setting supplicant event handler 2

>

With ThreadX/NetX_Duo build:

> join_ent LAB-WPA2-ENT eap_tls bob hello eap mschapv2 wpa2

Joining : LAB-WPA2-ENT

Successfully joined : LAB-WPA2-ENT

Obtaining IPv4 address via DHCP

DHCP CLIENT hostname WICED IP

IPv4 network ready IP: 192.168.1.111

Setting IPv6 link-local address

IPv6 network ready IP: FE80:0000:0000:0000:462C:05FF:FE80:65FC

Successfully retrieved the session information 0

> leave_ent

leave test: ok

> join_ent LAB-WPA2-ENT eap_tls bob hello eap mschapv2 wpa2

Joining : LAB-WPA2-ENT

Successfully joined : LAB-WPA2-ENT

Obtaining IPv4 address via DHCP

DHCP CLIENT hostname WICED IP

IPv4 network ready IP: 192.168.1.111

Setting IPv6 link-local address

IPv6 network ready IP: FE80:0000:0000:0000:462C:05FF:FE80:65FC

Successfully retrieved the session information 0

> leave_ent

leave test: ok

> join_ent LAB-WPA2-ENT eap_tls bob hello eap mschapv2 wpa2

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Joining : LAB-WPA2-ENT

Failed to join : LAB-WPA2-ENT

Join result 1007:

failed

  ! mbedtls_ssl_handshake returned -0x2

>

[GauravS_31]

There seems to be an imbalance in memory allocation and deallocation after each join_ent and leave_ent. The net total allocated space would increase after each join_ent-leave_ent. It probably could cause a memory leak which means that even join is not expected to work after the error. We will check further to find the issue.

[AxLi_1746341]

grsr wrote:

There seems to be an imbalance in memory allocation and deallocation after each join_ent and leave_ent. The net total

If this statement is true, it means memory leak.

However, I feel it's not related to memory leak...

It looks like if join_ent fails it will not work any more until reboot the device.

Maybe you can write a simple test code to repeat testing

join_ent && join_leave to ensure it is stable for use.