FreeRDP: Connection over gateway doesn't work with OpenSSL 3.0

Describe the bug Connection over gateway doesn’t work currently with up-to-date master/stable-2.0 branches when build with OpenSSL 3.0. Individual connections to both machines work properly. It also works with older OpenSSL versions. Any idea what might be wrong?

To Reproduce Steps to reproduce the behavior:

1. Build freerdp with OpenSSL 3.0, or use e.g. xfreerdp from Fedora rawhide:
2. xfreerdp /v:IP /g:GATEWAYIP /u:USER /p:PASS /redirect-prefer:ip
3. It fails with:

[11:41:14:369] [335533:335534] [ERROR][com.freerdp.core.gateway.http] - http_response_recv: Retries exceeded
[11:41:14:369] [335533:335534] [ERROR][com.freerdp.core.gateway.http] - 404629DD7E7F0000:error:0308010C:digital envelope routines:inner_evp_generic_fetch:unsupported:crypto/evp/evp_fetch.c:346:Global default library context, Algorithm (MD4 : 84), Properties ()
[11:41:14:369] [335533:335534] [ERROR][com.freerdp.core.gateway.http] - 404629DD7E7F0000:error:03000086:digital envelope routines:evp_md_init_internal:initialization error:crypto/evp/digest.c:234:
[11:41:14:369] [335533:335534] [ERROR][com.freerdp.core.gateway.http] - 404629DD7E7F0000:error:0308010C:digital envelope routines:inner_evp_generic_fetch:unsupported:crypto/evp/evp_fetch.c:346:Global default library context, Algorithm (MD4 : 84), Properties ()
[11:41:14:369] [335533:335534] [ERROR][com.freerdp.core.gateway.http] - 404629DD7E7F0000:error:03000086:digital envelope routines:evp_md_init_internal:initialization error:crypto/evp/digest.c:234:
[11:41:14:370] [335533:335534] [ERROR][com.freerdp.core.nego] - Protocol Security Negotiation Failure
[11:41:14:370] [335533:335534] [ERROR][com.freerdp.core] - rdp_client_connect:freerdp_set_last_error_ex ERRCONNECT_SECURITY_NEGO_CONNECT_FAILED [0x0002000C]
[11:41:14:370] [335533:335534] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure

1. With #7448 applied on the top, the error changed, but doesn’t work anyway:

[11:44:12:465] [336396:336397] [ERROR][com.freerdp.core] - rdg_process_close_packet:freerdp_set_last_error_ex E_PROXY_INTERNALERROR [0x800759D8]

Expected behavior FreeRDP connects successfully to IP over GATEWAYIP

Application details

• FreeRDP version (xfreerdp /version)
• Command line used
• Output of xfreerdp /buildconfig
• OS version connecting to (server side) Windows Server 2019
• If available the log output from a run with /log-level:trace 2>&1 | tee log.txt There is a log on top of #7448: log.txt.
• If you built it yourself add some notes which tag/commit/branch you have used, also your cmake parameters and compiler can help

Environment:

• OS: Linux
• Version/Distribution: Fedora 35
• Architecture: amd64

Additional context It works fine when hostname is used instead of IP for /v: with https://github.com/FreeRDP/FreeRDP/pull/7448. This might determine the potentially problematic code…

There is a backtrace for freerdp_set_last_error_ex on top of #7448: backtrace.txt.