Provide a easy way to access bpf maps from java
A wrapper for bpf map opening, reading/writing, and iteration.
Bug: 173167302
Test: atest BpfMapTest
Change-Id: I792b41978b322c9e4969cd7b6c35d6978ab86bc4
diff --git a/Tethering/bpf_progs/offload.c b/Tethering/bpf_progs/offload.c
index cc5af31..d8dc60d 100644
--- a/Tethering/bpf_progs/offload.c
+++ b/Tethering/bpf_progs/offload.c
@@ -34,6 +34,10 @@
// (tethering allowed when stats[iif].rxBytes + stats[iif].txBytes < limit[iif])
DEFINE_BPF_MAP_GRW(tether_limit_map, HASH, uint32_t, uint64_t, 16, AID_NETWORK_STACK)
+// Used only by TetheringPrivilegedTests, not by production code.
+DEFINE_BPF_MAP_GRW(tether_ingress_map_TEST, HASH, TetherIngressKey, TetherIngressValue, 16,
+ AID_NETWORK_STACK)
+
static inline __always_inline int do_forward(struct __sk_buff* skb, bool is_ethernet) {
int l2_header_size = is_ethernet ? sizeof(struct ethhdr) : 0;
void* data = (void*)(long)skb->data;