sandboxed-api/sandboxed_api/examples/stringop/main_stringop.cc

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// Copyright 2019 Google LLC
//
// 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 <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <glog/logging.h>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "sandboxed_api/util/flag.h"
#include "absl/memory/memory.h"
#include "absl/status/status.h"
#include "absl/time/time.h"
#include "sandboxed_api/examples/stringop/lib/sandbox.h"
#include "sandboxed_api/examples/stringop/lib/stringop-sapi.sapi.h"
#include "sandboxed_api/examples/stringop/lib/stringop_params.pb.h"
#include "sandboxed_api/transaction.h"
#include "sandboxed_api/util/status_macros.h"
#include "sandboxed_api/util/status_matchers.h"
#include "sandboxed_api/vars.h"
namespace {
using ::sapi::IsOk;
using ::testing::Eq;
using ::testing::Ne;
using ::testing::SizeIs;
using ::testing::StrEq;
// Tests using a simple transaction (and function pointers):
TEST(StringopTest, ProtobufStringDuplication) {
sapi::BasicTransaction st(absl::make_unique<StringopSapiSandbox>());
EXPECT_THAT(st.Run([](sapi::Sandbox* sandbox) -> absl::Status {
StringopApi api(sandbox);
stringop::StringDuplication proto;
proto.set_input("Hello");
sapi::v::Proto<stringop::StringDuplication> pp(proto);
{
SAPI_ASSIGN_OR_RETURN(int return_value,
api.pb_duplicate_string(pp.PtrBoth()));
TRANSACTION_FAIL_IF_NOT(return_value, "pb_duplicate_string() failed");
}
SAPI_ASSIGN_OR_RETURN(auto pb_result, pp.GetMessage());
LOG(INFO) << "Result PB: " << pb_result.DebugString();
TRANSACTION_FAIL_IF_NOT(pb_result.output() == "HelloHello",
"Incorrect output");
return absl::OkStatus();
}),
IsOk());
}
TEST(StringopTest, ProtobufStringReversal) {
StringopSapiSandbox sandbox;
ASSERT_THAT(sandbox.Init(), IsOk());
StringopApi api(&sandbox);
stringop::StringReverse proto;
proto.set_input("Hello");
sapi::v::Proto<stringop::StringReverse> pp(proto);
SAPI_ASSERT_OK_AND_ASSIGN(int return_value,
api.pb_reverse_string(pp.PtrBoth()));
EXPECT_THAT(return_value, Ne(0)) << "pb_reverse_string() failed";
SAPI_ASSERT_OK_AND_ASSIGN(auto pb_result, pp.GetMessage());
LOG(INFO) << "Result PB: " << pb_result.DebugString();
EXPECT_THAT(pb_result.output(), StrEq("olleH"));
}
TEST(StringopTest, RawStringDuplication) {
StringopSapiSandbox sandbox;
ASSERT_THAT(sandbox.Init(), IsOk());
StringopApi api(&sandbox);
sapi::v::LenVal param("0123456789", 10);
SAPI_ASSERT_OK_AND_ASSIGN(int return_value,
api.duplicate_string(param.PtrBoth()));
EXPECT_THAT(return_value, Eq(1)) << "duplicate_string() failed";
absl::string_view data(reinterpret_cast<const char*>(param.GetData()),
param.GetDataSize());
EXPECT_THAT(data, SizeIs(20))
<< "duplicate_string() did not return enough data";
EXPECT_THAT(std::string(data), StrEq("01234567890123456789"));
}
TEST(StringopTest, RawStringReversal) {
StringopSapiSandbox sandbox;
ASSERT_THAT(sandbox.Init(), IsOk());
StringopApi api(&sandbox);
sapi::v::LenVal param("0123456789", 10);
{
SAPI_ASSERT_OK_AND_ASSIGN(int return_value,
api.reverse_string(param.PtrBoth()));
EXPECT_THAT(return_value, Eq(1))
<< "reverse_string() returned incorrect value";
absl::string_view data(reinterpret_cast<const char*>(param.GetData()),
param.GetDataSize());
EXPECT_THAT(param.GetDataSize(), Eq(10))
<< "reverse_string() did not return enough data";
EXPECT_THAT(std::string(data), StrEq("9876543210"))
<< "reverse_string() did not return the expected data";
}
{
// Let's call it again with different data as argument, reusing the
// existing LenVal object.
EXPECT_THAT(param.ResizeData(sandbox.rpc_channel(), 16), IsOk());
memcpy(param.GetData() + 10, "ABCDEF", 6);
absl::string_view data(reinterpret_cast<const char*>(param.GetData()),
param.GetDataSize());
EXPECT_THAT(data, SizeIs(16)) << "Resize did not behave correctly";
EXPECT_THAT(std::string(data), StrEq("9876543210ABCDEF"));
SAPI_ASSERT_OK_AND_ASSIGN(int return_value,
api.reverse_string(param.PtrBoth()));
EXPECT_THAT(return_value, Eq(1))
<< "reverse_string() returned incorrect value";
data = absl::string_view(reinterpret_cast<const char*>(param.GetData()),
param.GetDataSize());
EXPECT_THAT(std::string(data), StrEq("FEDCBA0123456789"));
}
}
TEST(StringopTest, RawStringLength) {
StringopSapiSandbox sandbox;
ASSERT_THAT(sandbox.Init(), IsOk());
StringopApi api(&sandbox);
SAPI_ASSERT_OK_AND_ASSIGN(void* target_mem_ptr, api.get_raw_c_string());
SAPI_ASSERT_OK_AND_ASSIGN(size_t len,
sandbox.rpc_channel()->Strlen(target_mem_ptr));
EXPECT_THAT(len, Eq(10));
}
TEST(StringopTest, RawStringReading) {
StringopSapiSandbox sandbox;
ASSERT_THAT(sandbox.Init(), IsOk());
StringopApi api(&sandbox);
SAPI_ASSERT_OK_AND_ASSIGN(void* target_mem_ptr, api.get_raw_c_string());
SAPI_ASSERT_OK_AND_ASSIGN(size_t len,
sandbox.rpc_channel()->Strlen(target_mem_ptr));
EXPECT_THAT(len, Eq(10));
SAPI_ASSERT_OK_AND_ASSIGN(
std::string data, sandbox.GetCString(sapi::v::RemotePtr(target_mem_ptr)));
EXPECT_THAT(data, StrEq("Ten chars."));
}
} // namespace