netlink: convert lltype to device type

adapts to third-party code compilation. in the process of porting ConnMan,
we encounter some situations where the structure is not defined, or the
returned data types do not match the expectations. Refer to the common
implementation of other systems and add relevant definitions.

Signed-off-by: zhanghongyu <[email protected]>

Author: zhhyu7

net/netlink/netlink_route.c

@@ -41,6 +41,7 @@
 
 #include "netdev/netdev.h"
 #include "arp/arp.h"
+#include "net/if_arp.h"
 #include "neighbor/neighbor.h"
 #include "route/route.h"
 #include "netlink/netlink.h"
@@ -246,6 +247,44 @@ static_assert(sizeof(g_ifa_ipv6_policy) / sizeof(g_ifa_ipv6_policy[0]) ==
  ****************************************************************************/
 
 #ifndef CONFIG_NETLINK_DISABLE_GETLINK
+
+static uint16_t netlink_convert_device_type(uint8_t lltype)
+{
+  switch (lltype)
+    {
+      case NET_LL_ETHERNET:
+        return ARPHRD_ETHER;
+
+      case NET_LL_IEEE80211:
+        return ARPHRD_IEEE80211;
+
+      case NET_LL_LOOPBACK:
+        return ARPHRD_LOOPBACK;
+
+      case NET_LL_SLIP:
+        return ARPHRD_SLIP;
+
+      case NET_LL_TUN:
+      case NET_LL_BLUETOOTH:
+      case NET_LL_PKTRADIO:
+      case NET_LL_MBIM:
+        return ARPHRD_NONE;
+
+      case NET_LL_IEEE802154:
+        return ARPHRD_IEEE802154;
+
+      case NET_LL_CAN:
+        return ARPHRD_CAN;
+
+      case NET_LL_CELL:
+        return ARPHRD_PHONET_PIPE;
+
+      default:
+        nerr("ERROR: invalid lltype %d\n", lltype);
+        return ARPHRD_VOID;
+    }
+}
+
 static FAR struct netlink_response_s *
 netlink_get_device(FAR struct net_driver_s *dev,
                    FAR const struct nlroute_sendto_request_s *req)
@@ -275,7 +314,7 @@ netlink_get_device(FAR struct net_driver_s *dev,
   resp->hdr.nlmsg_pid    = req ? req->hdr.nlmsg_pid : 0;
 
   resp->iface.ifi_family = req ? req->gen.rtgen_family : AF_PACKET;
-  resp->iface.ifi_type   = dev->d_lltype;
+  resp->iface.ifi_type   = netlink_convert_device_type(dev->d_lltype);
 #ifdef CONFIG_NETDEV_IFINDEX
   resp->iface.ifi_index  = dev->d_ifindex;
 #endif