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// Copyright (c) 2007, 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.
//
// Interface file between the Breakpad.framework and
// the Inspector process.
#include "common/simple_string_dictionary.h"
#import <Foundation/Foundation.h>
#include <mach/mach.h>
#import "client/mac/crash_generation/ConfigFile.h"
#import "client/mac/handler/minidump_generator.h"
// Types of mach messsages (message IDs)
enum {
kMsgType_InspectorInitialInfo = 0, // data is InspectorInfo
kMsgType_InspectorKeyValuePair = 1, // data is KeyValueMessageData
kMsgType_InspectorAcknowledgement = 2 // no data sent
};
// Initial information sent from the crashed process by
// Breakpad.framework to the Inspector process
// The mach message with this struct as data will also include
// several descriptors for sending mach port rights to the crashed
// task, etc.
struct InspectorInfo {
int exception_type;
int exception_code;
int exception_subcode;
unsigned int parameter_count; // key-value pairs
};
// Key/value message data to be sent to the Inspector
struct KeyValueMessageData {
public:
KeyValueMessageData() {}
explicit KeyValueMessageData(
const google_breakpad::SimpleStringDictionary::Entry &inEntry) {
strlcpy(key, inEntry.key, sizeof(key) );
strlcpy(value, inEntry.value, sizeof(value) );
}
char key[google_breakpad::SimpleStringDictionary::key_size];
char value[google_breakpad::SimpleStringDictionary::value_size];
};
using std::string;
using google_breakpad::MinidumpGenerator;
namespace google_breakpad {
//=============================================================================
class MinidumpLocation {
public:
MinidumpLocation(NSString *minidumpDir) {
// Ensure that the path exists. Fallback to /tmp if unable to locate path.
assert(minidumpDir);
if (!EnsureDirectoryPathExists(minidumpDir)) {
minidumpDir = @"/tmp";
}
strlcpy(minidump_dir_path_, [minidumpDir fileSystemRepresentation],
sizeof(minidump_dir_path_));
// now generate a unique ID
string dump_path(minidump_dir_path_);
string next_minidump_id;
string next_minidump_path_ =
(MinidumpGenerator::UniqueNameInDirectory(dump_path, &next_minidump_id));
strlcpy(minidump_id_, next_minidump_id.c_str(), sizeof(minidump_id_));
};
const char *GetPath() { return minidump_dir_path_; }
const char *GetID() { return minidump_id_; }
private:
char minidump_dir_path_[PATH_MAX]; // Path to minidump directory
char minidump_id_[128];
};
//=============================================================================
class Inspector {
public:
Inspector() {};
// given a bootstrap service name, receives mach messages
// from a crashed process, then inspects it, creates a minidump file
// and asks the user if he wants to upload it to a server.
void Inspect(const char *receive_port_name);
private:
// The Inspector is invoked with its bootstrap port set to the bootstrap
// subset established in OnDemandServer.mm OnDemandServer::Initialize.
// For proper communication with the system, the sender (which will inherit
// the Inspector's bootstrap port) needs the per-session bootstrap namespace
// available directly in its bootstrap port. OnDemandServer stashed this
// port into the subset namespace under a special name. ResetBootstrapPort
// recovers this port and switches this task to use it as its own bootstrap
// (ensuring that children like the sender will inherit it), and saves the
// subset in bootstrap_subset_port_ for use by ServiceCheckIn and
// ServiceCheckOut.
kern_return_t ResetBootstrapPort();
kern_return_t ServiceCheckIn(const char *receive_port_name);
kern_return_t ServiceCheckOut(const char *receive_port_name);
kern_return_t ReadMessages();
bool InspectTask();
kern_return_t SendAcknowledgement();
// The bootstrap port in which the inspector is registered and into which it
// must check in.
mach_port_t bootstrap_subset_port_;
mach_port_t service_rcv_port_;
int exception_type_;
int exception_code_;
int exception_subcode_;
mach_port_t remote_task_;
mach_port_t crashing_thread_;
mach_port_t handler_thread_;
mach_port_t ack_port_;
SimpleStringDictionary config_params_;
ConfigFile config_file_;
};
} // namespace google_breakpad
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Swift