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[Openvpn-devel,XS] Change in openvpn[master]: Make --dns options apply for tap-windows6 driver

Message ID a6fd9d0d0fdbce8ed2100cead3f6a9b99fc5c23d-HTML@gerrit.openvpn.net
State Superseded
Headers show
Series [Openvpn-devel,XS] Change in openvpn[master]: Make --dns options apply for tap-windows6 driver | expand

Commit Message

flichtenheld (Code Review) Nov. 13, 2023, 4:01 p.m. UTC 
Attention is currently required from: flichtenheld, plaisthos.

Hello plaisthos, flichtenheld,

I'd like you to do a code review.
Please visit

    http://gerrit.openvpn.net/c/openvpn/+/427?usp=email

to review the following change.


Change subject: Make --dns options apply for tap-windows6 driver
......................................................................

Make --dns options apply for tap-windows6 driver

When tap-windows6 driver is used, both --dhcp-option and
--dns options are applied with DHCP. When processing --dns options,
we don't set "tuntap_options.dhcp_options" member, which is required
for DHCP string to be sent to the driver. As a result, --dns options
are not applied at all.

Fix by adding missing assignment of tuntap_options.dhcp_options.

Fixes https://github.com/OpenVPN/openvpn/issues/447

Change-Id: I24f43ad319bd1ca530fe17442d02a97412eb75c7
Signed-off-by: Lev Stipakov <lev@openvpn.net>
---
M src/openvpn/options.c
1 file changed, 3 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.openvpn.net:29418/openvpn refs/changes/27/427/1
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Patch

diff --git a/src/openvpn/options.c b/src/openvpn/options.c
index b88fea9..abd2e0c 100644
--- a/src/openvpn/options.c
+++ b/src/openvpn/options.c
@@ -1364,6 +1364,8 @@ 
         {
             msg(M_WARN, "WARNING: couldn't copy all --dns search-domains to --dhcp-option");
         }
+
+        tt->dhcp_options |= DHCP_OPTIONS_DHCP_REQUIRED;
     }
 
     if (dns->servers)
@@ -1401,6 +1403,7 @@ 
         {
             msg(M_WARN, "WARNING: couldn't copy all --dns server addresses to --dhcp-option");
         }
+        tt->dhcp_options |= DHCP_OPTIONS_DHCP_OPTIONAL;
     }
 }
 #else /* if defined(_WIN32) || defined(TARGET_ANDROID) */