[B.A.T.M.A.N.] [PATCH] alfred: vis: Fix direct neighbors detection with netlink query

[Sven Eckelmann]

Only entries in the originator table with the destination address equal to
the originator address should be handled by alfred as actual neighbors.

Fixes: bca55a86fecd ("alfred: vis: Add support for netlink")
Signed-off-by: Sven Eckelmann <s...@narfation.org>
---
 vis/vis.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/vis/vis.c b/vis/vis.c
index 94e583e..f4d13c7 100644
--- a/vis/vis.c
+++ b/vis/vis.c
@@ -453,6 +453,7 @@ err:
 
 static const int parse_orig_list_mandatory[] = {
        BATADV_ATTR_ORIG_ADDRESS,
+       BATADV_ATTR_NEIGH_ADDRESS,
        BATADV_ATTR_TQ,
        BATADV_ATTR_HARD_IFINDEX,
 };
@@ -466,6 +467,7 @@ static int parse_orig_list_netlink_cb(struct nl_msg *msg, 
void *arg)
        struct genlmsghdr *ghdr;
        struct vis_list_entry *v_entry;
        uint8_t *orig;
+       uint8_t *neigh;
        uint8_t tq;
        uint32_t hardif;
 
@@ -493,12 +495,16 @@ static int parse_orig_list_netlink_cb(struct nl_msg *msg, 
void *arg)
                return NL_OK;
 
        orig = nla_data(attrs[BATADV_ATTR_ORIG_ADDRESS]);
+       neigh = nla_data(attrs[BATADV_ATTR_NEIGH_ADDRESS]);
        tq = nla_get_u8(attrs[BATADV_ATTR_TQ]);
        hardif = nla_get_u32(attrs[BATADV_ATTR_HARD_IFINDEX]);
 
        if (tq < 1)
                return NL_OK;
 
+       if (memcmp(orig, neigh, ETH_ALEN) != 0)
+               return NL_OK;
+
        v_entry = malloc(sizeof(*v_entry));
        if (!v_entry)
                return NL_OK;
-- 
2.9.3