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/* 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, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* LSPs are evil little bits of code that are allowed to inject into our
* networking stack by Windows. Once they have wormed into our process
* they gnaw at our innards until we crash. Here we force the buggers
* into the light by recording them in our crash information.
* We do the enumeration on a thread because I'm concerned about startup perf
* on machines with several LSPs.
*/
#include "nsICrashReporter.h"
#include "nsISupportsImpl.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include <windows.h>
#include <ws2spi.h>
namespace mozilla {
namespace crashreporter {
class LSPAnnotationGatherer : public nsRunnable
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIRUNNABLE
void Annotate();
nsCString mString;
nsCOMPtr<nsIThread> mThread;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(LSPAnnotationGatherer, nsIRunnable)
void
LSPAnnotationGatherer::Annotate()
{
nsCOMPtr<nsICrashReporter> cr =
do_GetService("@mozilla.org/toolkit/crash-reporter;1");
bool enabled;
if (cr && NS_SUCCEEDED(cr->GetEnabled(&enabled)) && enabled) {
cr->AnnotateCrashReport(NS_LITERAL_CSTRING("Winsock_LSP"), mString);
}
mThread->Shutdown();
}
NS_IMETHODIMP
LSPAnnotationGatherer::Run()
{
PR_SetCurrentThreadName("LSP Annotator");
mThread = NS_GetCurrentThread();
DWORD size = 0;
int err;
// Get the size of the buffer we need
if (SOCKET_ERROR != WSCEnumProtocols(NULL, NULL, &size, &err) ||
err != WSAENOBUFS) {
// Er, what?
NS_NOTREACHED("WSCEnumProtocols suceeded when it should have failed ...");
return NS_ERROR_FAILURE;
}
nsAutoArrayPtr<char> byteArray(new char[size]);
WSAPROTOCOL_INFOW* providers =
reinterpret_cast<WSAPROTOCOL_INFOW*>(byteArray.get());
int n = WSCEnumProtocols(NULL, providers, &size, &err);
if (n == SOCKET_ERROR) {
// Lame. We provided the right size buffer; we'll just give up now.
NS_WARNING("Could not get LSP list");
return NS_ERROR_FAILURE;
}
nsCString str;
for (int i = 0; i < n; i++) {
AppendUTF16toUTF8(nsDependentString(providers[i].szProtocol), str);
str.AppendLiteral(" : ");
str.AppendInt(providers[i].iVersion);
str.AppendLiteral(" : ");
str.AppendInt(providers[i].iSocketType);
str.AppendLiteral(" : ");
wchar_t path[MAX_PATH];
int dummy;
if (!WSCGetProviderPath(&providers[i].ProviderId, path,
&dummy, &err)) {
AppendUTF16toUTF8(nsDependentString(path), str);
}
if (i + 1 != n) {
str.AppendLiteral(" \n ");
}
}
mString = str;
NS_DispatchToMainThread(NS_NewRunnableMethod(this, &LSPAnnotationGatherer::Annotate));
return NS_OK;
}
void LSPAnnotate()
{
nsCOMPtr<nsIThread> thread;
nsCOMPtr<nsIRunnable> runnable =
do_QueryObject(new LSPAnnotationGatherer());
NS_NewThread(getter_AddRefs(thread), runnable);
}
} // namespace crashreporter
} // namespace mozilla
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