First release of open-appsec source code

components/pending_key/pending_key.cc

@@ -0,0 +1,54 @@
+#include "pending_key.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+#include "debug.h"
+#include "hash_combine.h"
+#include "enum_range.h"
+#include "cereal/types/memory.hpp"
+
+using namespace std;
+
+CEREAL_CLASS_VERSION(PendingKey, 0);
+
+static bool
+protoHasPorts(IPProto proto)
+{
+    return (proto==IPPROTO_TCP) || (proto==IPPROTO_UDP);
+}
+
+// Format a port numbers. Use a pair, becuase it depends on the protocl (only TCP/UDP have ports).
+static ostream &
+operator<<(ostream &os, pair<IPProto, PortNumber> pp)
+{
+    if (protoHasPorts(get<0>(pp))) {
+        os << "|" << get<1>(pp);
+    }
+    return os;
+}
+
+ostream &
+PendingKey::print(ostream &os) const
+{
+    if (getType() == IPType::UNINITIALIZED) return os << "<Uninitialized connection>";
+
+    return os << "<" <<
+        getSrc() << " -> " <<
+        getDst() << make_pair(getProto(), getDPort()) <<
+        " " << static_cast<uint>(getProto()) << ">";  // Cast needed to print as a number.
+}
+
+size_t
+PendingKey::hash() const
+{
+    dbgAssert(src.type != IPType::UNINITIALIZED) << "PendingKey::hash was called on an uninitialized object";
+    size_t seed = 0;
+    hashCombine(seed, static_cast<u_char>(src.type));
+    hashCombine(seed, src.proto);
+    hashCombine(seed, src);
+    hashCombine(seed, dst);
+    hashCombine(seed, dst.port);
+    return seed;
+}