From: Antonio Quartulli <anto...@openvpn.net>
If no IPv4 redirection flag is set, do not enable the IPv4
redirection logic at all so that it won't bother adding any
useless IPv4 route.
Trac: #208
Signed-off-by: Antonio Quartulli <anto...@openvpn.net>
---
Changes from v4:
- move error message modification to previous patch
Changes from v3:
- patchset rebased on top of pre-ipv6-only patchset
src/openvpn/options.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/openvpn/options.c b/src/openvpn/options.c
index 7556e7ee..3798731e 100644
--- a/src/openvpn/options.c
+++ b/src/openvpn/options.c
@@ -6591,7 +6591,14 @@ add_option(struct options *options,
/* we need this here to handle pushed --redirect-gateway */
remap_redirect_gateway_flags(options);
#endif
- options->routes->flags |= RG_ENABLE;
+ /* enable IPv4 redirection logic only if at least one IPv4 flag is set.
+ * For instance, when "redirect-gateway !ipv4 ipv6" is specified no
+ * IPv4 redirection should be activated.
+ */
+ if (options->routes->flags)
+ {
+ options->routes->flags |= RG_ENABLE;
+ }
}
else if (streq(p[0], "block-ipv6") && !p[1])
{
--
2.26.2
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