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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
#include "mozISandboxReporter.h"
#include "SandboxReporter.h"
#include <time.h>
#include "mozilla/Assertions.h"
#include "mozilla/Components.h"
#include "nsCOMPtr.h"
#include "nsPrintfCString.h"
#include "nsTArray.h"
#include "nsXULAppAPI.h"
using namespace mozilla;
namespace mozilla {
class SandboxReportWrapper final : public mozISandboxReport {
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISANDBOXREPORT
explicit SandboxReportWrapper(const SandboxReport& aReport)
: mReport(aReport) {}
private:
~SandboxReportWrapper() = default;
SandboxReport mReport;
};
NS_IMPL_ISUPPORTS(SandboxReportWrapper, mozISandboxReport)
/* readonly attribute uint64_t msecAgo; */
NS_IMETHODIMP SandboxReportWrapper::GetMsecAgo(uint64_t* aMsec) {
struct timespec then = mReport.mTime, now = {0, 0};
clock_gettime(CLOCK_MONOTONIC_COARSE, &now);
const uint64_t now_msec = uint64_t(now.tv_sec) * 1000 + now.tv_nsec / 1000000;
const uint64_t then_msec =
uint64_t(then.tv_sec) * 1000 + then.tv_nsec / 1000000;
MOZ_DIAGNOSTIC_ASSERT(now_msec >= then_msec);
if (now_msec >= then_msec) {
*aMsec = now_msec - then_msec;
} else {
*aMsec = 0;
}
return NS_OK;
}
/* readonly attribute int32_t pid; */
NS_IMETHODIMP SandboxReportWrapper::GetPid(int32_t* aPid) {
*aPid = mReport.mPid;
return NS_OK;
}
/* readonly attribute int32_t tid; */
NS_IMETHODIMP SandboxReportWrapper::GetTid(int32_t* aTid) {
*aTid = mReport.mTid;
return NS_OK;
}
/* readonly attribute ACString procType; */
NS_IMETHODIMP SandboxReportWrapper::GetProcType(nsACString& aProcType) {
switch (mReport.mProcType) {
case SandboxReport::ProcType::CONTENT:
aProcType.AssignLiteral("content");
return NS_OK;
case SandboxReport::ProcType::FILE:
aProcType.AssignLiteral("file");
return NS_OK;
case SandboxReport::ProcType::MEDIA_PLUGIN:
aProcType.AssignLiteral("mediaPlugin");
return NS_OK;
case SandboxReport::ProcType::RDD:
aProcType.AssignLiteral("dataDecoder");
return NS_OK;
case SandboxReport::ProcType::SOCKET_PROCESS:
aProcType.AssignLiteral("socketProcess");
return NS_OK;
case SandboxReport::ProcType::UTILITY:
aProcType.AssignLiteral("utility");
return NS_OK;
default:
MOZ_ASSERT(false);
return NS_ERROR_UNEXPECTED;
}
}
/* readonly attribute uint32_t syscall; */
NS_IMETHODIMP SandboxReportWrapper::GetSyscall(uint32_t* aSyscall) {
*aSyscall = static_cast<uint32_t>(mReport.mSyscall);
MOZ_ASSERT(static_cast<SandboxReport::ULong>(*aSyscall) == mReport.mSyscall);
return NS_OK;
}
/* readonly attribute uint32_t numArgs; */
NS_IMETHODIMP SandboxReportWrapper::GetNumArgs(uint32_t* aNumArgs) {
*aNumArgs = static_cast<uint32_t>(kSandboxSyscallArguments);
return NS_OK;
}
/* ACString getArg (in uint32_t aIndex); */
NS_IMETHODIMP SandboxReportWrapper::GetArg(uint32_t aIndex,
nsACString& aRetval) {
if (aIndex >= kSandboxSyscallArguments) {
return NS_ERROR_INVALID_ARG;
}
const auto arg = mReport.mArgs[aIndex];
nsAutoCString str;
// Use decimal for smaller numbers (more likely ints) and hex for
// larger (more likely pointers). This cutoff is arbitrary.
if (arg >= 1000000) {
str.AppendLiteral("0x");
str.AppendInt(arg, 16);
} else {
str.AppendInt(arg, 10);
}
aRetval = str;
return NS_OK;
}
class SandboxReportArray final : public mozISandboxReportArray {
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISANDBOXREPORTARRAY
explicit SandboxReportArray(SandboxReporter::Snapshot&& aSnap)
: mOffset(aSnap.mOffset), mArray(std::move(aSnap.mReports)) {}
private:
~SandboxReportArray() = default;
uint64_t mOffset;
nsTArray<SandboxReport> mArray;
};
NS_IMPL_ISUPPORTS(SandboxReportArray, mozISandboxReportArray)
/* readonly attribute uint64_t begin; */
NS_IMETHODIMP SandboxReportArray::GetBegin(uint64_t* aBegin) {
*aBegin = mOffset;
return NS_OK;
}
/* readonly attribute uint64_t end; */
NS_IMETHODIMP SandboxReportArray::GetEnd(uint64_t* aEnd) {
*aEnd = mOffset + mArray.Length();
return NS_OK;
}
/* mozISandboxReport getElement (in uint64_t aIndex); */
NS_IMETHODIMP SandboxReportArray::GetElement(uint64_t aIndex,
mozISandboxReport** aRetval) {
uint64_t relIndex = aIndex - mOffset;
if (relIndex >= mArray.Length()) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<mozISandboxReport> wrapper =
new SandboxReportWrapper(mArray[relIndex]);
wrapper.forget(aRetval);
return NS_OK;
}
class SandboxReporterWrapper final : public mozISandboxReporter {
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISANDBOXREPORTER
SandboxReporterWrapper() = default;
private:
~SandboxReporterWrapper() = default;
};
NS_IMPL_ISUPPORTS(SandboxReporterWrapper, mozISandboxReporter)
/* mozISandboxReportArray snapshot(); */
NS_IMETHODIMP SandboxReporterWrapper::Snapshot(
mozISandboxReportArray** aRetval) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
nsCOMPtr<mozISandboxReportArray> wrapper =
new SandboxReportArray(SandboxReporter::Singleton()->GetSnapshot());
wrapper.forget(aRetval);
return NS_OK;
}
} // namespace mozilla
NS_IMPL_COMPONENT_FACTORY(mozISandboxReporter) {
return MakeAndAddRef<SandboxReporterWrapper>().downcast<nsISupports>();
}