Shill: Incorporating the functionality of 'iw event' into shill.
'iw event' has been ported into shill and there are unit tests.
It still needs a facility to send individual messages to the
kernel (and there are comments in the code to show where this is
intended) but this will wait for a later commit.
BUG=None.
TEST=Enclosed unit tests verified against manual test. Ran all WiFi
autotests and output matched 'iw event'.
Change-Id: Ia5f5e8b440d0a657ce7fdb3e2b8b5fc6c95323fe
Reviewed-on: https://gerrit.chromium.org/gerrit/24508
Commit-Ready: Wade Guthrie <wdg@chromium.org>
Reviewed-by: Wade Guthrie <wdg@chromium.org>
Tested-by: Wade Guthrie <wdg@chromium.org>
diff --git a/kernel_bound_nlmessage.h b/kernel_bound_nlmessage.h
new file mode 100644
index 0000000..b303f51
--- /dev/null
+++ b/kernel_bound_nlmessage.h
@@ -0,0 +1,73 @@
+// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// This code is derived from the 'iw' source code. The copyright and license
+// of that code is as follows:
+//
+// Copyright (c) 2007, 2008 Johannes Berg
+// Copyright (c) 2007 Andy Lutomirski
+// Copyright (c) 2007 Mike Kershaw
+// Copyright (c) 2008-2009 Luis R. Rodriguez
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#ifndef SHILL_KERNEL_BOUND_NLMESSAGE_H_
+#define SHILL_KERNEL_BOUND_NLMESSAGE_H_
+
+#include "shill/kernel_bound_nlmessage.h"
+
+#include <base/basictypes.h>
+#include <base/bind.h>
+
+struct nl_msg;
+
+namespace shill {
+struct NetlinkSocket;
+
+// TODO(wdg): eventually, KernelBoundNlMessage and UserBoundNlMessage should
+// be combined into a monolithic NlMessage.
+//
+// Provides a wrapper around a netlink message destined for kernel-space.
+class KernelBoundNlMessage {
+ public:
+ KernelBoundNlMessage() : message_(NULL) {}
+ virtual ~KernelBoundNlMessage();
+
+ // Non-trivial initialization.
+ bool Init();
+
+ // Message ID is equivalent to the message's sequence number.
+ uint32_t GetId() const;
+
+ // Add a netlink header to the message.
+ bool AddNetlinkHeader(uint32_t port, uint32_t seq, int family_id, int hdrlen,
+ int flags, uint8_t cmd, uint8_t version);
+
+ // Add a netlink attribute to the message.
+ int AddAttribute(int attrtype, int attrlen, const void *data);
+
+ // Sends |this| over the netlink socket.
+ virtual bool Send(NetlinkSocket *socket);
+
+ private:
+ static const uint32_t kIllegalMessage;
+
+ struct nl_msg *message_;
+
+ DISALLOW_COPY_AND_ASSIGN(KernelBoundNlMessage);
+};
+
+} // namespace shill
+
+#endif // SHILL_KERNEL_BOUND_NLMESSAGE_H_