Merge "Remove nvram trusty implementation." into oc-mr1-dev
diff --git a/trusty/Android.bp b/trusty/Android.bp
index 386fbe6..2fb2e19 100644
--- a/trusty/Android.bp
+++ b/trusty/Android.bp
@@ -2,6 +2,5 @@
"gatekeeper",
"keymaster",
"libtrusty",
- "nvram",
"storage/*",
]
diff --git a/trusty/nvram/Android.bp b/trusty/nvram/Android.bp
deleted file mode 100644
index 15e6c3e..0000000
--- a/trusty/nvram/Android.bp
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright (C) 2016 The Android Open-Source Project
-//
-// 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.
-//
-
-// nvram.trusty is the Trusty NVRAM HAL module.
-cc_library_shared {
- name: "nvram.trusty",
- relative_install_path: "hw",
- srcs: [
- "module.c",
- "trusty_nvram_device.cpp",
- "trusty_nvram_implementation.cpp",
- ],
-
- cflags: [
- "-Wall",
- "-Werror",
- "-Wextra",
- "-fvisibility=hidden",
- ],
- static_libs: ["libnvram-hal"],
- shared_libs: [
- "libtrusty",
- "libnvram-messages",
- "liblog",
- ],
-}
-
-// nvram-wipe is a helper tool for clearing NVRAM state.
-cc_binary {
- name: "nvram-wipe",
- srcs: [
- "nvram_wipe.cpp",
- "trusty_nvram_implementation.cpp",
- ],
-
- cflags: [
- "-Wall",
- "-Werror",
- "-Wextra",
- "-fvisibility=hidden",
- ],
- static_libs: ["libnvram-hal"],
- shared_libs: [
- "libtrusty",
- "libnvram-messages",
- "liblog",
- ],
-}
diff --git a/trusty/nvram/module.c b/trusty/nvram/module.c
deleted file mode 100644
index a2e64d3..0000000
--- a/trusty/nvram/module.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * 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 <hardware/nvram.h>
-
-// This function is defined in trusty_nvram_device.cpp.
-int trusty_nvram_open(const hw_module_t* module,
- const char* device_id,
- hw_device_t** device_ptr);
-
-static struct hw_module_methods_t nvram_module_methods = {
- .open = trusty_nvram_open,
-};
-
-struct nvram_module HAL_MODULE_INFO_SYM
- __attribute__((visibility("default"))) = {
- .common = {.tag = HARDWARE_MODULE_TAG,
- .module_api_version = NVRAM_MODULE_API_VERSION_0_1,
- .hal_api_version = HARDWARE_HAL_API_VERSION,
- .id = NVRAM_HARDWARE_MODULE_ID,
- .name = "Trusty NVRAM HAL",
- .author = "The Android Open Source Project",
- .methods = &nvram_module_methods,
- .dso = 0,
- .reserved = {}},
-};
diff --git a/trusty/nvram/nvram_wipe.cpp b/trusty/nvram/nvram_wipe.cpp
deleted file mode 100644
index d0f4fad..0000000
--- a/trusty/nvram/nvram_wipe.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <nvram/messages/nvram_messages.h>
-
-#include "trusty_nvram_implementation.h"
-
-void usage(const char* program_name) {
- fprintf(stderr, "Usage: %s [status|disable|wipe]\n", program_name);
- exit(-1);
-}
-
-int main(int argc, char* argv[]) {
- if (argc < 2) {
- usage(argv[0]);
- }
-
- nvram::TrustyNvramImplementation nvram_proxy;
- nvram::Request request;
- nvram::Response response;
-
- if (!strcmp(argv[1], "status")) {
- request.payload.Activate<nvram::COMMAND_GET_INFO>();
- nvram_proxy.Execute(request, &response);
- const nvram::GetInfoResponse* get_info_response =
- response.payload.get<nvram::COMMAND_GET_INFO>();
- if (response.result == NV_RESULT_SUCCESS) {
- int status = get_info_response && get_info_response->wipe_disabled;
- printf("Wiping disabled: %d\n", status);
- return status;
- }
- } else if (!strcmp(argv[1], "disable")) {
- request.payload.Activate<nvram::COMMAND_DISABLE_WIPE>();
- nvram_proxy.Execute(request, &response);
- } else if (!strcmp(argv[1], "wipe")) {
- request.payload.Activate<nvram::COMMAND_WIPE_STORAGE>();
- nvram_proxy.Execute(request, &response);
- } else {
- usage(argv[0]);
- }
-
- if (response.result != NV_RESULT_SUCCESS) {
- fprintf(stderr, "Command execution failure: %u\n", response.result);
- return -1;
- }
-
- return 0;
-}
-
diff --git a/trusty/nvram/trusty_nvram_device.cpp b/trusty/nvram/trusty_nvram_device.cpp
deleted file mode 100644
index 2c50915..0000000
--- a/trusty/nvram/trusty_nvram_device.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * 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 <nvram/hal/nvram_device_adapter.h>
-
-#include "trusty_nvram_implementation.h"
-
-extern "C" int trusty_nvram_open(const hw_module_t* module,
- const char* device_id,
- hw_device_t** device_ptr) {
- if (strcmp(NVRAM_HARDWARE_DEVICE_ID, device_id) != 0) {
- return -EINVAL;
- }
-
- nvram::NvramDeviceAdapter* adapter = new nvram::NvramDeviceAdapter(
- module, new nvram::TrustyNvramImplementation);
- *device_ptr = adapter->as_device();
- return 0;
-}
diff --git a/trusty/nvram/trusty_nvram_implementation.cpp b/trusty/nvram/trusty_nvram_implementation.cpp
deleted file mode 100644
index 9215c85..0000000
--- a/trusty/nvram/trusty_nvram_implementation.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * 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.
- */
-
-#define LOG_TAG "TrustyNVRAM"
-
-#include "trusty_nvram_implementation.h"
-
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <hardware/nvram.h>
-#include <log/log.h>
-#include <trusty/tipc.h>
-
-#include <nvram/messages/blob.h>
-
-namespace nvram {
-namespace {
-
-// Character device to open for Trusty IPC connections.
-const char kTrustyDeviceName[] = "/dev/trusty-ipc-dev0";
-
-// App identifier of the NVRAM app.
-const char kTrustyNvramAppId[] = "com.android.trusty.nvram";
-
-} // namespace
-
-TrustyNvramImplementation::~TrustyNvramImplementation() {
- if (tipc_nvram_fd_ != -1) {
- tipc_close(tipc_nvram_fd_);
- tipc_nvram_fd_ = -1;
- }
-}
-
-void TrustyNvramImplementation::Execute(const nvram::Request& request,
- nvram::Response* response) {
- if (!SendRequest(request, response)) {
- response->result = NV_RESULT_INTERNAL_ERROR;
- }
-}
-
-bool TrustyNvramImplementation::Connect() {
- if (tipc_nvram_fd_ != -1) {
- return true;
- }
-
- int rc = tipc_connect(kTrustyDeviceName, kTrustyNvramAppId);
- if (rc < 0) {
- ALOGE("Failed to connect to Trusty NVRAM app: %s\n", strerror(-rc));
- return false;
- }
-
- tipc_nvram_fd_ = rc;
- return true;
-}
-
-bool TrustyNvramImplementation::SendRequest(const nvram::Request& request,
- nvram::Response* response) {
- if (!Connect()) {
- return false;
- }
-
- nvram::Blob request_buffer;
- if (!nvram::Encode(request, &request_buffer)) {
- ALOGE("Failed to encode NVRAM request.\n");
- return false;
- }
-
- ssize_t rc =
- write(tipc_nvram_fd_, request_buffer.data(), request_buffer.size());
- if (rc < 0) {
- ALOGE("Failed to send NVRAM request: %s\n", strerror(-rc));
- return false;
- }
- if (static_cast<size_t>(rc) != request_buffer.size()) {
- ALOGE("Failed to send full request buffer: %zd\n", rc);
- return false;
- }
-
- rc = read(tipc_nvram_fd_, response_buffer_, sizeof(response_buffer_));
- if (rc < 0) {
- ALOGE("Failed to read NVRAM response: %s\n", strerror(-rc));
- return false;
- }
-
- if (static_cast<size_t>(rc) >= sizeof(response_buffer_)) {
- ALOGE("NVRAM response exceeds response buffer size.\n");
- return false;
- }
-
- if (!nvram::Decode(response_buffer_, static_cast<size_t>(rc), response)) {
- ALOGE("Failed to decode NVRAM response.\n");
- return false;
- }
-
- return true;
-}
-
-} // namespace nvram
diff --git a/trusty/nvram/trusty_nvram_implementation.h b/trusty/nvram/trusty_nvram_implementation.h
deleted file mode 100644
index 60758f7..0000000
--- a/trusty/nvram/trusty_nvram_implementation.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * 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.
- */
-
-#ifndef TRUSTY_NVRAM_TRUSTY_NVRAM_IMPLEMENTATION_H_
-#define TRUSTY_NVRAM_TRUSTY_NVRAM_IMPLEMENTATION_H_
-
-#include <stdint.h>
-
-#include <nvram/hal/nvram_device_adapter.h>
-#include <nvram/messages/nvram_messages.h>
-
-namespace nvram {
-
-// |TrustyNvramImplementation| proxies requests to the Trusty NVRAM app. It
-// serializes the request objects, sends it to the Trusty app and finally reads
-// back the result and decodes it.
-class TrustyNvramImplementation : public nvram::NvramImplementation {
- public:
- ~TrustyNvramImplementation() override;
-
- void Execute(const nvram::Request& request,
- nvram::Response* response) override;
-
- private:
- // Connects the IPC channel to the Trusty app if it is not already open.
- // Returns true if the channel is open, false on errors.
- bool Connect();
-
- // Dispatches a command to the trust app. Returns true if successful (note
- // that the response may still indicate an error on the Trusty side), false if
- // there are any I/O or encoding/decoding errors.
- bool SendRequest(const nvram::Request& request,
- nvram::Response* response);
-
- // The file descriptor for the IPC connection to the Trusty app.
- int tipc_nvram_fd_ = -1;
-
- // Response buffer. This puts a hard size limit on the responses from the
- // Trusty app. 4096 matches the maximum IPC message size currently supported
- // by Trusty.
- uint8_t response_buffer_[4096];
-};
-
-} // namespace nvram
-
-#endif // TRUSTY_NVRAM_TRUSTY_NVRAM_IMPLEMENTATION_H_