initial drop of phosphor-ipmi-blobs

This implements a majority of the OEM IPMI BLOBS protocol.  The only
piece missing from this is the timed expiration of sessions.

Change-Id: I82c9d17b625c94fc3340edcfabbbf1ffeb5ad7ac
Signed-off-by: Patrick Venture <venture@google.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..e7c1247
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "config.h"
+
+#include "ipmi.hpp"
+#include "process.hpp"
+
+#include <host-ipmid/ipmid-api.h>
+
+#include <cstdio>
+#include <host-ipmid/iana.hpp>
+#include <host-ipmid/oemrouter.hpp>
+#include <memory>
+
+/* TODO: Swap out once https://gerrit.openbmc-project.xyz/12743 is merged */
+namespace oem
+{
+constexpr auto blobTransferCmd = 128;
+} // namespace oem
+
+namespace blobs
+{
+
+static std::unique_ptr<BlobManager> manager;
+
+static ipmi_ret_t handleBlobCommand(ipmi_cmd_t cmd, const uint8_t* reqBuf,
+                                    uint8_t* replyCmdBuf, size_t* dataLen)
+{
+    /* It's holding at least a sub-command.  The OEN is trimmed from the bytes
+     * before this is called.
+     */
+    if ((*dataLen) < 1)
+    {
+        return IPMI_CC_INVALID;
+    }
+
+    Crc16 crc;
+    IpmiBlobHandler command =
+        validateBlobCommand(&crc, reqBuf, replyCmdBuf, dataLen);
+    if (command == nullptr)
+    {
+        return IPMI_CC_INVALID;
+    }
+
+    return processBlobCommand(command, manager.get(), &crc, reqBuf, replyCmdBuf,
+                              dataLen);
+}
+
+void setupBlobGlobalHandler() __attribute__((constructor));
+
+void setupBlobGlobalHandler()
+{
+    oem::Router* oemRouter = oem::mutableRouter();
+    std::fprintf(stderr,
+                 "Registering OEM:[%#08X], Cmd:[%#04X] for Blob Commands\n",
+                 oem::obmcOemNumber, oem::blobTransferCmd);
+
+    oemRouter->registerHandler(oem::obmcOemNumber, oem::blobTransferCmd,
+                               handleBlobCommand);
+
+    manager = std::make_unique<BlobManager>();
+}
+} // namespace blobs