Check BPF stats map lookup result.

2021-12-06 16:37:39 +00:00
parent 5591f1ace7
commit ef996a6596
1 changed files with 5 additions and 1 deletions
--- a/src/xdpfw.c
+++ b/src/xdpfw.c
@@ -494,11 +494,15 @@ int main(int argc, char *argv[])
        {
            __u32 key = 0;
            struct stats stats[cpus];
+            //memset(&stats, 0, sizeof(struct stats) * cpus);

            __u64 allowed = 0;
            __u64 dropped = 0;
            
-            bpf_map_lookup_elem(statsmap, &key, &stats);
+            if (bpf_map_lookup_elem(statsmap, &key, &stats) != 0)
+            {
+                fprintf(stderr, "Error performing stats map lookup.\n");
+            }

            for (int i = 0; i < cpus; i++)
            {