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// Copyright (C) 2014-2017 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
// 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/.
#include <vsomeip/constants.hpp>
#include "../include/channel_impl.hpp"
#include "../include/connector_impl.hpp"
#include "../include/defines.hpp"
#include "../../configuration/include/internal.hpp"
#include "../../configuration/include/trace.hpp"
#include "../../logging/include/logger.hpp"
#include "../../utility/include/byteorder.hpp"
namespace vsomeip {
namespace trace {
const char *VSOMEIP_TC_DEFAULT_CHANNEL_ID = "TC";
std::shared_ptr<connector_impl> connector_impl::get() {
static std::shared_ptr<connector_impl> instance = std::make_shared<connector_impl>();
return instance;
}
connector_impl::connector_impl() :
is_enabled_(false),
is_sd_enabled_(false),
is_initialized_(false) {
channels_[VSOMEIP_TC_DEFAULT_CHANNEL_ID]
= std::make_shared<channel_impl>(VSOMEIP_TC_DEFAULT_CHANNEL_ID,
VSOMEIP_TC_DEFAULT_CHANNEL_NAME);
#ifdef USE_DLT
std::shared_ptr<DltContext> its_default_context
= std::make_shared<DltContext>();
contexts_[VSOMEIP_TC_DEFAULT_CHANNEL_ID] = its_default_context;
DLT_REGISTER_CONTEXT_LL_TS(*(its_default_context.get()),
VSOMEIP_TC_DEFAULT_CHANNEL_ID, VSOMEIP_TC_DEFAULT_CHANNEL_NAME,
DLT_LOG_INFO, DLT_TRACE_STATUS_ON);
#endif
}
connector_impl::~connector_impl() {
reset();
}
void connector_impl::configure(const std::shared_ptr<cfg::trace> &_configuration) {
if (_configuration) {
is_enabled_ = _configuration->is_enabled_;
is_sd_enabled_ = _configuration->is_sd_enabled_;
}
if (is_enabled_) { // No need to create filters if tracing is disabled!
for (auto &its_channel : _configuration->channels_) {
if (!add_channel(its_channel->id_, its_channel->name_)) {
VSOMEIP_ERROR << "Channel " << its_channel->id_
<< " has multiple definitions.";
}
}
for (auto &its_filter : _configuration->filters_) {
for (auto &its_channel : its_filter->channels_) {
std::shared_ptr<channel> its_channel_ptr = get_channel(its_channel);
if (its_channel_ptr) {
if (its_filter->is_range_) {
its_channel_ptr->add_filter(its_filter->matches_[0],
its_filter->matches_[1], its_filter->is_positive_);
} else {
its_channel_ptr->add_filter(its_filter->matches_,
its_filter->is_positive_);
}
}
}
}
}
VSOMEIP_INFO << "vsomeip tracing "
<< (is_enabled_ ? "enabled " : "not enabled. ")
<< ". vsomeip service discovery tracing "
<< (is_sd_enabled_ ? "enabled " : "not enabled. ");
}
void connector_impl::reset() {
#ifdef USE_DLT
std::lock_guard<std::mutex> its_contexts_lock(contexts_mutex_);
contexts_.clear();
#endif
// reset to default
std::lock_guard<std::mutex> its_lock_channels(channels_mutex_);
channels_.clear();
}
void connector_impl::set_enabled(const bool _enabled) {
is_enabled_ = _enabled;
}
bool connector_impl::is_enabled() const {
return is_enabled_;
}
void connector_impl::set_sd_enabled(const bool _sd_enabled) {
is_sd_enabled_ = _sd_enabled;
}
bool connector_impl::is_sd_enabled() const {
return is_sd_enabled_;
}
bool connector_impl::is_sd_message(const byte_t *_data, uint16_t _data_size) const {
if (VSOMEIP_METHOD_POS_MAX < _data_size) {
return (_data[VSOMEIP_SERVICE_POS_MIN] == 0xFF && _data[VSOMEIP_SERVICE_POS_MAX] == 0xFF &&
_data[VSOMEIP_METHOD_POS_MIN] == 0x81 && _data[VSOMEIP_METHOD_POS_MAX] == 0x00);
}
return false;
}
std::shared_ptr<channel> connector_impl::add_channel(
const trace_channel_t &_id, const std::string &_name) {
std::lock_guard<std::mutex> its_channels_lock(channels_mutex_);
// check whether we already know the requested channel
if (channels_.find(_id) != channels_.end())
return nullptr;
// create new channel
std::shared_ptr<channel_impl> its_channel
= std::make_shared<channel_impl>(_id, _name);
// add channel
channels_[_id] = its_channel;
// register context
#ifdef USE_DLT
std::lock_guard<std::mutex> its_contexts_lock(contexts_mutex_);
std::shared_ptr<DltContext> its_context = std::make_shared<DltContext>();
contexts_[_id] = its_context;
DLT_REGISTER_CONTEXT_LL_TS(*(its_context.get()), _id.c_str(), _name.c_str(),
DLT_LOG_INFO, DLT_TRACE_STATUS_ON);
#endif
return its_channel;
}
bool connector_impl::remove_channel(const trace_channel_t &_id) {
if (_id == VSOMEIP_TC_DEFAULT_CHANNEL_ID) {
// the default channel can not be removed
return false;
}
std::lock_guard<std::mutex> its_channels_lock(channels_mutex_);
bool has_removed = (channels_.erase(_id) == 1);
if (has_removed) {
// unregister context
#ifdef USE_DLT
std::lock_guard<std::mutex> its_contexts_lock(contexts_mutex_);
auto its_context = contexts_.find(_id);
if (its_context != contexts_.end()) {
DLT_UNREGISTER_CONTEXT(*(its_context->second.get()));
}
#endif
}
return true;
}
std::shared_ptr<channel> connector_impl::get_channel(const std::string &_id) const {
std::lock_guard<std::mutex> its_channels_lock(channels_mutex_);
auto its_channel = channels_.find(_id);
return (its_channel != channels_.end() ? its_channel->second : nullptr);
}
void connector_impl::trace(const byte_t *_header, uint16_t _header_size,
const byte_t *_data, uint16_t _data_size) {
#ifdef USE_DLT
if (!is_enabled_)
return;
if (_data_size == 0)
return; // no data
if (is_sd_message(_data, _data_size) && !is_sd_enabled_)
return; // tracing of service discovery messages is disabled!
service_t its_service = VSOMEIP_BYTES_TO_WORD(
_data[VSOMEIP_SERVICE_POS_MIN],
_data[VSOMEIP_SERVICE_POS_MAX]);
// Instance is not part of the SOME/IP header, read it from the trace
// header
instance_t its_instance = VSOMEIP_BYTES_TO_WORD(
_header[VSOMEIP_TC_INSTANCE_POS_MIN],
_header[VSOMEIP_TC_INSTANCE_POS_MAX]);
method_t its_method = VSOMEIP_BYTES_TO_WORD(
_data[VSOMEIP_METHOD_POS_MIN],
_data[VSOMEIP_METHOD_POS_MAX]);
// Forward to channel if the filter set of the channel allows
std::lock_guard<std::mutex> its_channels_lock(channels_mutex_);
std::lock_guard<std::mutex> its_contexts_lock(contexts_mutex_);
for (auto its_channel : channels_) {
if (its_channel.second->matches(its_service, its_instance, its_method)) {
auto its_context = contexts_.find(its_channel.second->get_id());
if (its_context != contexts_.end()) {
DLT_TRACE_NETWORK_SEGMENTED(*(its_context->second.get()),
DLT_NW_TRACE_IPC,
_header_size, static_cast<void *>(const_cast<byte_t *>(_header)),
_data_size, static_cast<void *>(const_cast<byte_t *>(_data)));
} else {
// This should never happen!
VSOMEIP_ERROR << "tracing: found channel without DLT context!";
}
}
}
#else
(void)_header;
(void)_header_size;
(void)_data;
(void)_data_size;
#endif
}
} // namespace trace
} // namespace vsomeip
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