u6: fix socketpair exit fd capture and socket filtering

1 files changed, 14 insertions, 0 deletions

diff --git a/internal/c/maps.h b/internal/c/maps.h
index 7ec871c..1624ff8 100644
--- a/internal/c/maps.h
+++ b/internal/c/maps.h
@@ -4,3 +4,17 @@ struct {
     __uint(type, BPF_MAP_TYPE_RINGBUF);
     __uint(max_entries, 1 << 24);
 } event_map SEC(".maps");
+
+struct socketpair_ctx {
+    __u64 usockvec;
+    __s32 family;
+    __s32 type;
+    __s32 protocol;
+};
+
+struct {
+    __uint(type, BPF_MAP_TYPE_HASH);
+    __uint(max_entries, 8192);
+    __type(key, __u32);
+    __type(value, struct socketpair_ctx);
+} socketpair_ctx_map SEC(".maps");