commit 83f2e887441175d81c56b01d988245f7bbeb3a6a
author Maciej Żenczykowski <maze@google.com> Tue Jul 07 20:00:53 2020 -0700
committer Maciej Żenczykowski <maze@google.com> Tue Jul 07 20:01:44 2020 -0700
tree fc79752ea3d236e589db42bbf50d635863dc8e8d
parent b0c4a4d7fab4f26bf305b717dbf9f45062e28cb6

bpf_progs/offload.c - increment error counter on failure

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I22e4bec8f0f659a46dfed66d5cd7f681b7289b83

bpf_progs/offload.c

diff --git a/bpf_progs/offload.c b/bpf_progs/offload.c
index 16dbe1d..cc5af31 100644
--- a/bpf_progs/offload.c
+++ b/bpf_progs/offload.c
@@ -130,7 +130,10 @@
         ip6 = (void*)(eth + 1);
 
         // I do not believe this can ever happen, but keep the verifier happy...
-        if (data + l2_header_size + sizeof(*ip6) > data_end) return TC_ACT_SHOT;
+        if (data + l2_header_size + sizeof(*ip6) > data_end) {
+            __sync_fetch_and_add(&stat_v->rxErrors, 1);
+            return TC_ACT_SHOT;
+        }
     };
 
     // CHECKSUM_COMPLETE is a 16-bit one's complement sum,