win: Implement Bluetooth server.

net/base/net_util.cc

Index: net/base/net_util.cc
diff --git a/net/base/net_util.cc b/net/base/net_util.cc
index 106486df248e47db22675b669da71739ba546ba0..aa1863394829f155cdcddb17d2ea7edbeb523e9d 100644
--- a/net/base/net_util.cc
+++ b/net/base/net_util.cc
@@ -17,6 +17,7 @@
 #include <windows.h>
 #include <iphlpapi.h>
 #include <winsock2.h>
+#include <ws2bth.h>
 #pragma comment(lib, "iphlpapi.lib")
 #elif defined(OS_POSIX)
 #include <fcntl.h>
@@ -1195,6 +1196,22 @@ bool GetIPAddressFromSockAddr(const struct sockaddr* sock_addr,
     return true;
   }
 
+#if defined(OS_WIN)
+  // Bluetooth address size. Windows bluetooth is supported via winsock.

[wtc, 2014/04/24 23:09:31]

Nit: capitalize "bluetooth".

[xiyuan, 2014/04/25 20:29:29]

Done.

+  const size_t kBtAddressSize = 6;

[wtc, 2014/04/24 23:09:31]

1. Nit: it seems better to use "Bth" instead of "Bt" because the address family
macro is "AF_BTH".

2. It seems that this constant should be defined in the net/base/net_util.h
header instead (inside #if defined(OS_WIN)). You also need this constant in
device/bluetooth/bluetooth_profile_win.cc.

[xiyuan, 2014/04/25 20:29:29]

Done.
Done.

+  if (sock_addr->sa_family == AF_BTH) {
+    if (sock_addr_len < static_cast<socklen_t>(sizeof(SOCKADDR_BTH)))
+      return false;
+    const SOCKADDR_BTH* addr =
+        reinterpret_cast<const SOCKADDR_BTH*>(sock_addr);
+    *address = reinterpret_cast<const uint8*>(&addr->btAddr);
+    *address_len = kBtAddressSize;
+    if (port)
+      *port = addr->port;

[wtc, 2014/04/24 23:09:31]

This doesn't extract the serviceClassId member of SOCKADDR_BTH. Is that a
problem?

[xiyuan, 2014/04/25 20:29:29]

serviceClassId is a way to map to a port(aka Bt channel). We use port directly
so don't need this.

+    return true;
+  }
+#endif
+
   return false;  // Unrecognized |sa_family|.
 }