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Diffstat (limited to 'samples/bpf/xdp_router_ipv4_user.c')
-rw-r--r--samples/bpf/xdp_router_ipv4_user.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/samples/bpf/xdp_router_ipv4_user.c b/samples/bpf/xdp_router_ipv4_user.c
index 2c1fe3f..9164621 100644
--- a/samples/bpf/xdp_router_ipv4_user.c
+++ b/samples/bpf/xdp_router_ipv4_user.c
@@ -206,12 +206,13 @@ static void read_route(struct nlmsghdr *nh, int nll)
direct_entry.arp.mac = 0;
direct_entry.arp.dst = 0;
if (route.dst_len == 32) {
- if (nh->nlmsg_type == RTM_DELROUTE)
+ if (nh->nlmsg_type == RTM_DELROUTE) {
assert(bpf_map_delete_elem(map_fd[3], &route.dst) == 0);
- else
+ } else {
if (bpf_map_lookup_elem(map_fd[2], &route.dst, &direct_entry.arp.mac) == 0)
direct_entry.arp.dst = route.dst;
assert(bpf_map_update_elem(map_fd[3], &route.dst, &direct_entry, 0) == 0);
+ }
}
for (i = 0; i < 4; i++)
prefix_key->data[i] = (route.dst >> i * 8) & 0xff;
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