Support for ppp default route setting

When gateway is NULL, we need to properly set our connection and element
string to 0.0.0.0 so that the interface is the default route.

1 files changed, 45 insertions, 0 deletions

diff --git a/src/inet.c b/src/inet.c
index ec0850a4..980bd481 100644
--- a/src/inet.c
+++ b/src/inet.c
@@ -899,3 +899,48 @@ int connman_inet_clear_gateway_address(int index, const char *gateway)
 
 	return err;
 }
+
+int connman_inet_clear_gateway_interface(int index)
+{
+	struct ifreq ifr;
+	struct rtentry rt;
+	struct sockaddr_in addr;
+	int sk, err;
+
+	DBG("");
+
+	sk = socket(PF_INET, SOCK_DGRAM, 0);
+	if (sk < 0)
+		return -1;
+
+	memset(&ifr, 0, sizeof(ifr));
+	ifr.ifr_ifindex = index;
+
+	if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
+		close(sk);
+		return -1;
+	}
+
+	DBG("ifname %s", ifr.ifr_name);
+
+	memset(&rt, 0, sizeof(rt));
+	rt.rt_flags = RTF_UP;
+
+	memset(&addr, 0, sizeof(addr));
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = INADDR_ANY;
+
+	memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
+	memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
+	memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
+
+	rt.rt_dev = ifr.ifr_name;
+
+	err = ioctl(sk, SIOCDELRT, &rt);
+	if (err < 0)
+		connman_error("Removing default interface route failed (%s)",
+							strerror(errno));
+	close(sk);
+
+	return err;
+}