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/*
* Copyright 2010, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "breakpad.h"
#if defined(LINUX)
#include <sys/stat.h>
#endif // defined(LINUX)
namespace o3d {
#if defined(WIN32)
static const std::string kBreakpadProduct = "Google_O3D_Plugin";
#elif defined(OSX)
static const std::string kBreakpadProduct = "Google_O3D_Plugin_Mac";
#elif defined(LINUX)
static const std::string kBreakpadProduct = "Google_O3D_Plugin_Linux";
#endif
static const std::string kBreakpadVersion = "unknown";
static const std::string kBreakpadGUID = "unknown";
static const std::string kBreakpadEmail = "unknown";
#ifdef _DEBUG
static const std::string kBreakpadServer =
"http://clients2.google.com/cr/staging_report";
#else
static const std::string kBreakpadServer =
"http://clients2.google.com/cr/report";
#endif
static const std::string kBreakpadDumpFilenameTemplate =
"/tmp/google-o3d-plugin-minidump-XXXXXX";
//TODO(zhurunz): Add/use decent path utility functions.
bool Breakpad::Initialize() {
if (NULL != breakpad_)
return true;
// Set default configuration.
set_product(kBreakpadProduct);
set_version(kBreakpadVersion);
set_guid(kBreakpadGUID);
set_email(kBreakpadEmail);
set_path("/tmp/");
set_server(kBreakpadServer);
// TODO(zhurunz): consider using HANDLE_CRASHES
// Setup callback.
breakpad_ = new
google_breakpad::ExceptionHandler(path_.c_str(),
NULL, /* filter callback */
BreakpadCallback,
this,
true /* install handlers */);
return (NULL != breakpad_);
}
bool Breakpad::Shutdown() {
delete breakpad_;
breakpad_ = NULL;
return true;
}
#if defined(LINUX)
bool Breakpad::BuildDumpFilename(char* filename,
int len,
const char* dump_path,
const char* minidump_id) {
const int dump_path_len = strlen(dump_path);
const int minidump_id_len = strlen(minidump_id);
int len_needed = dump_path_len + minidump_id_len +
4 /* ".dmp" */ + 1 /* NUL */;
if (len_needed > len)
return false;
filename[0] = '\0';
std::strcat(filename, dump_path);
std::strcat(filename, minidump_id);
std::strcat(filename, ".dmp");
return true;
}
bool Breakpad::SendDumpFile(const char* filename) {
struct stat st;
if (stat(filename, &st) != 0 || st.st_size <= 0)
return false;
google_breakpad::GoogleCrashdumpUploader
uploader(product_.c_str(),
version_.c_str(),
guid_.c_str(),
ptime_.c_str(),
ctime_.c_str(),
email_.c_str(),
comments_.c_str(),
filename,
server_.c_str(),
proxy_.c_str(),
passwd_.c_str());
return uploader.Upload();
}
bool Breakpad::GenerateAndSendDumpFile(
const std::map<std::string, std::string>* extra_params) {
// Create pipe.
int fds[2];
if (0 != pipe(fds))
return false;
std::string filename = kBreakpadDumpFilenameTemplate;
if (NULL == mktemp(const_cast<char*>(filename.c_str()))) {
close(fds[0]);
close(fds[1]);
return false;
}
// We must breakpad minidump the child process.
// Minidump ourself would crash in breakpad.
const pid_t child = fork();
if (0 == child) {
close(fds[1]);
char b;
HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
close(fds[0]);
syscall(__NR_exit);
}
if (-1 == child) {
close(fds[0]);
close(fds[1]);
return false;
}
close(fds[0]);
// Create minidump.
google_breakpad::ExceptionHandler::CrashContext context;
memset(&context, 0, sizeof(context));
if (!WriteMinidump(filename.c_str(), child,
&context, sizeof(context))) {
close(fds[1]);
return false;
}
// Upload minidump.
bool ret = SendDumpFile(filename.c_str());
unlink(filename.c_str());
close(fds[1]);
return ret;
}
bool Breakpad::OnBreakpadCallback(const char* dump_path,
const char* minidump_id,
bool succeeded) {
// WARNING: this code runs in a compromised context. It may not call into
// libc nor allocate memory normally.
if (!succeeded)
return succeeded;
// Build dump filename.
char filename[256];
if (!BuildDumpFilename(filename, sizeof(filename),
dump_path, minidump_id))
return false;
// TODO(zhurunz): Change in-proc upload to out-proc upload.
// TODO(zhurunz): Sync with other teams in ChromeOS and figure out if
// we could have a GC proc to upload all dumps on ChromeOS/Linux.
bool ret = SendDumpFile(filename);
unlink(filename);
return ret;
}
#endif // defined(LINUX)
bool BreakpadCallback(const char* dump_path,
const char* minidump_id,
void* context,
bool succeeded) {
Breakpad* breakpad = reinterpret_cast<Breakpad*>(context);
if (NULL == breakpad)
return false;
return breakpad->OnBreakpadCallback(dump_path, minidump_id, succeeded);
}
} // namespace o3d
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