Add ASSERT() check to route_list_add_vpn_gateway() to ensure that *rl
is valid (and if not, crash with a somewhat more meaningful message than
"segmentation violation"). For the actual bugfix, change init code to
always allocate a "struct route_list" for IPv4, even if no --route options
have been seen in the config.
Fix trac#281 and trac#258.
Signed-off-by: Gert Doering <g...@greenie.muc.de>
---
src/openvpn/init.c | 7 ++++---
src/openvpn/route.c | 1 +
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index 98f5489..694d086 100644
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -1145,13 +1145,14 @@ do_init_traffic_shaper (struct context *c)
}
/*
- * Allocate a route list structure if at least one
- * --route option was specified.
+ * Allocate route list structures for IPv4 and IPv6
+ * (we do this for IPv4 even if no --route option has been seen, as other
+ * parts of OpenVPN might want to fill the route-list with info, e.g. DHCP)
*/
static void
do_alloc_route_list (struct context *c)
{
- if (c->options.routes && !c->c1.route_list)
+ if (!c->c1.route_list)
c->c1.route_list = new_route_list (c->options.max_routes, &c->gc);
if (c->options.routes_ipv6 && !c->c1.route_ipv6_list)
c->c1.route_ipv6_list = new_route_ipv6_list (c->options.max_routes,
&c->gc);
diff --git a/src/openvpn/route.c b/src/openvpn/route.c
index f5b5efa..72ecbaf 100644
--- a/src/openvpn/route.c
+++ b/src/openvpn/route.c
@@ -503,6 +503,7 @@ route_list_add_vpn_gateway (struct route_list *rl,
struct env_set *es,
const in_addr_t addr)
{
+ ASSERT(rl);
rl->spec.remote_endpoint = addr;
rl->spec.flags |= RTSA_REMOTE_ENDPOINT;
setenv_route_addr (es, "vpn_gateway", rl->spec.remote_endpoint, -1);
--
1.8.1.5
