Attention is currently required from: flichtenheld, plaisthos.

cron2 has posted comments on this change. ( 
http://gerrit.openvpn.net/c/openvpn/+/787?usp=email )

Change subject: Refuse clients if username or password is > USER_PASS_LEN
......................................................................


Patch Set 1: Code-Review-1

(1 comment)

Patchset:

PS1:
Okay, my client was not compiled the way I thought - so with --enable-pkcs11, 
sending a long username to an unmodified server yields

```
Oct 27 10:30:59 gentoo tun-udp-p2mp-global-authpam[14201]: 194.97.140.21:36736 
TLS Error: Auth Username/Password was not provided by peer
Oct 27 10:30:59 gentoo tun-udp-p2mp-global-authpam[14201]: 194.97.140.21:36736 
TLS Error: TLS handshake failed
``

and with the patch it does a proper

```
Oct 27 10:34:48 gentoo tun-udp-p2mp-global-authpam[15712]: 194.97.140.21:60127 
TLS INFO: Username (-230) or password (14)  long
...
Oct 27 10:34:48 gentoo tun-udp-p2mp-global-authpam[15712]: 194.97.140.21:60127 
TLS Error: Username (230) or password (14) too long
```

and the client receives

```
2024-10-27 10:34:48 AUTH: Received control message: AUTH_FAILED,Username or 
password is too long. Maximum length is 128 bytes
```

(the "-" 230 is my doing, I removed the abs() call to more clearly see what is 
being returned).

Upgrading the patch to "-1" ;-) - I think the "TLS INFO:" line clould either be 
removed (because it's duplicating the TLS Error: message later) or the `abs()` 
should go, and the double space before `  long`)



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Gerrit-Project: openvpn
Gerrit-Branch: master
Gerrit-Change-Id: I60f02c919767eb8f1b95253689a8233f5f68621d
Gerrit-Change-Number: 787
Gerrit-PatchSet: 1
Gerrit-Owner: plaisthos <arne-open...@rfc2549.org>
Gerrit-Reviewer: cron2 <g...@greenie.muc.de>
Gerrit-Reviewer: flichtenheld <fr...@lichtenheld.com>
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Gerrit-Attention: plaisthos <arne-open...@rfc2549.org>
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Gerrit-Comment-Date: Sun, 27 Oct 2024 09:41:32 +0000
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