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datasourcetracker.cc
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datasourcetracker.cc
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/*
This file is part of Kismet
Kismet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kismet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Kismet; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <string.h>
#include "configfile.h"
#include "getopt.h"
#include "datasourcetracker.h"
#include "messagebus.h"
#include "globalregistry.h"
#include "alertracker.h"
#include "kismet_json.h"
#include "timetracker.h"
#include "structured.h"
#include "base64.h"
#include "pcapng_stream_ringbuf.h"
#include "streamtracker.h"
#include "kis_httpd_registry.h"
#include "endian_magic.h"
#include "kis_databaselogfile.h"
DST_DatasourceProbe::DST_DatasourceProbe(std::string in_definition,
std::shared_ptr<TrackerElementVector> in_protovec) {
timetracker = Globalreg::FetchMandatoryGlobalAs<Timetracker>("TIMETRACKER");
definition = in_definition;
proto_vec = in_protovec;
transaction_id = 0;
cancelled = false;
cancel_timer = -1;
}
DST_DatasourceProbe::~DST_DatasourceProbe() {
local_locker lock(&probe_lock);
// Cancel any probing sources and delete them
for (auto i = probe_vec.begin(); i != probe_vec.end(); ++i) {
(*i)->close_source();
}
}
void DST_DatasourceProbe::cancel() {
{
local_locker lock(&probe_lock);
// fprintf(stderr, "debug - dstprobe cancelling search for %s\n", definition.c_str());
cancelled = true;
// Cancel any pending timer
if (cancel_timer >= 0) {
// fprintf(stderr, "debug - dstprobe cancelling completion timer %d\n", cancel_timer);
timetracker->RemoveTimer(cancel_timer);
}
// Cancel any other competing probing sources; this may trigger the callbacks
// which will call the completion function, but we'll ignore them because
// we're already cancelled
for (auto i = ipc_probe_map.begin(); i != ipc_probe_map.end(); ++i) {
i->second->close_source();
}
// We don't delete sources now because we might be inside the loop somehow
// and deleting references to ourselves
}
// Unlock just before we call the CB so that we're not callbacked inside a thread lock
if (probe_cb)
probe_cb(source_builder);
}
SharedDatasourceBuilder DST_DatasourceProbe::get_proto() {
local_locker lock(&probe_lock);
return source_builder;
}
void DST_DatasourceProbe::complete_probe(bool in_success, unsigned int in_transaction,
std::string in_reason __attribute__((unused))) {
local_locker lock(&probe_lock);
auto v = ipc_probe_map.find(in_transaction);
// If we're already in cancelled state these callbacks mean nothing, ignore them
if (cancelled)
return;
if (v != ipc_probe_map.end()) {
if (in_success) {
source_builder = v->second->get_source_builder();
}
// Move them to the completed vec
complete_vec.push_back(v->second);
// Remove them from the map
ipc_probe_map.erase(v);
} else {
// fprintf(stderr, "debug - dstp - complete_probe - couldn't find transaction record for transaction %u\n", in_transaction);
}
// If we've succeeded, cancel any others, cancel will take care of our
// callback for completion
if (in_success) {
cancel();
return;
} else {
// If we've exhausted everything in the map, we're also done
if (ipc_probe_map.size() == 0) {
cancel();
return;
}
}
}
void DST_DatasourceProbe::probe_sources(std::function<void (SharedDatasourceBuilder)> in_cb) {
{
local_locker lock(&probe_lock);
cancel_timer =
timetracker->RegisterTimer(SERVER_TIMESLICES_SEC * 10, NULL, 0,
[this] (int) -> int {
_MSG_ERROR("Datasource {} cancelling source probe due to timeout", definition);
cancel();
return 0;
});
probe_cb = in_cb;
}
std::vector<SharedDatasourceBuilder> remote_builders;
unsigned int ncreated = 0;
for (auto i : *proto_vec) {
auto b = std::static_pointer_cast<KisDatasourceBuilder>(i);
if (!b->get_probe_capable())
continue;
unsigned int transaction = ++transaction_id;
// Instantiate a local prober
SharedDatasource pds = b->build_datasource(b);
{
local_locker lock(&probe_lock);
ipc_probe_map.insert(std::make_pair(transaction, pds));
ncreated++;
}
#if 0
auto pt = std::thread([](SharedDatasource pds, std::string definition,
unsigned int transaction, DST_DatasourceProbe *dst_probe) {
#endif
pds->probe_interface(definition, transaction,
[this](unsigned int transaction, bool success, std::string reason) {
complete_probe(success, transaction, reason);
});
#if 0
}, pds, definition, transaction, this);
pt.detach();
#endif
}
// We've done all we can; if we haven't gotten an answer yet and we
// have nothing in our transactional map, we've failed
if (ncreated == 0) {
cancel();
return;
}
}
DST_DatasourceList::DST_DatasourceList(std::shared_ptr<TrackerElementVector> in_protovec) {
timetracker = Globalreg::FetchMandatoryGlobalAs<Timetracker>("TIMETRACKER");
proto_vec = in_protovec;
transaction_id = 0;
cancelled = false;
cancel_timer = -1;
}
DST_DatasourceList::~DST_DatasourceList() {
local_locker lock(&list_lock);
cancelled = true;
// Cancel any pending timer
if (cancel_timer >= 0) {
timetracker->RemoveTimer(cancel_timer);
}
// Cancel any probing sources and delete them
for (auto i = list_vec.begin(); i != list_vec.end(); ++i) {
(*i)->close_source();
}
}
void DST_DatasourceList::cancel() {
local_locker lock(&list_lock);
if (cancelled)
return;
cancelled = true;
// Cancel any pending timer
if (cancel_timer >= 0) {
timetracker->RemoveTimer(cancel_timer);
}
for (auto i = ipc_list_map.begin(); i != ipc_list_map.end(); ++i) {
i->second->close_source();
}
if (list_cb)
list_cb(listed_sources);
}
void DST_DatasourceList::complete_list(std::vector<SharedInterface> in_list, unsigned int in_transaction) {
local_locker lock(&list_lock);
// If we're already in cancelled state these callbacks mean nothing, ignore them
if (cancelled)
return;
for (auto i = in_list.begin(); i != in_list.end(); ++i) {
listed_sources.push_back(*i);
}
auto v = ipc_list_map.find(in_transaction);
if (v != ipc_list_map.end()) {
complete_vec.push_back(v->second);
ipc_list_map.erase(v);
}
if (ipc_list_map.size() == 0) {
cancel();
return;
}
}
void DST_DatasourceList::list_sources(std::function<void (std::vector<SharedInterface>)> in_cb) {
cancel_timer =
timetracker->RegisterTimer(SERVER_TIMESLICES_SEC * 10, NULL, 0,
[this] (int) -> int {
cancel();
return 0;
});
list_cb = in_cb;
std::vector<SharedDatasourceBuilder> remote_builders;
for (auto i : *proto_vec) {
SharedDatasourceBuilder b = std::static_pointer_cast<KisDatasourceBuilder>(i);
if (!b->get_list_capable())
continue;
unsigned int transaction = ++transaction_id;
// Instantiate a local lister
SharedDatasource pds = b->build_datasource(b);
{
local_locker lock(&list_lock);
ipc_list_map[transaction] = pds;
}
pds->list_interfaces(transaction,
[this] (unsigned int transaction, std::vector<SharedInterface> interfaces) {
complete_list(interfaces, transaction);
});
}
{
local_locker lock(&list_lock);
if (ipc_list_map.size() == 0) {
cancel();
}
}
}
Datasourcetracker::Datasourcetracker() :
Kis_Net_Httpd_CPPStream_Handler(),
TcpServerV2(Globalreg::globalreg) {
timetracker = Globalreg::FetchMandatoryGlobalAs<Timetracker>("TIMETRACKER");
proto_id =
Globalreg::globalreg->entrytracker->RegisterField("kismet.datasourcetracker.driver",
TrackerElementFactory<KisDatasourceBuilder>(),
"Datasource driver information");
source_id =
Globalreg::globalreg->entrytracker->RegisterField("kismet.datasourcetracker.datasource",
TrackerElementFactory<KisDatasource>(nullptr),
"Datasource");
proto_vec =
Globalreg::globalreg->entrytracker->RegisterAndGetFieldAs<TrackerElementVector>("kismet.datasourcetracker.drivers",
TrackerElementFactory<TrackerElementVector>(), "Known drivers");
datasource_vec =
Globalreg::globalreg->entrytracker->RegisterAndGetFieldAs<TrackerElementVector>("kismet.datasourcetracker.sources",
TrackerElementFactory<TrackerElementVector>(), "Configured sources");
Bind_Httpd_Server();
}
Datasourcetracker::~Datasourcetracker() {
local_locker lock(&dst_lock);
Globalreg::globalreg->RemoveGlobal("DATASOURCETRACKER");
if (completion_cleanup_id >= 0)
timetracker->RemoveTimer(completion_cleanup_id);
if (database_log_timer >= 0) {
timetracker->RemoveTimer(database_log_timer);
databaselog_write_datasources();
}
for (auto i = probing_map.begin(); i != probing_map.end(); ++i) {
i->second->cancel();
}
for (auto i = listing_map.begin(); i != listing_map.end(); ++i) {
// TODO implement these
// i->second->cancel();
}
datasource_vec.reset();
}
void Datasourcetracker::databaselog_write_datasources() {
if (!database_log_enabled)
return;
std::shared_ptr<KisDatabaseLogfile> dbf =
Globalreg::FetchGlobalAs<KisDatabaseLogfile>("DATABASELOG");
if (dbf == NULL)
return;
// Fire off a database log
dbf->log_datasources(datasource_vec);
}
std::shared_ptr<datasourcetracker_defaults> Datasourcetracker::get_config_defaults() {
return config_defaults;
}
void Datasourcetracker::Deferred_Startup() {
bool used_args = false;
completion_cleanup_id = -1;
next_probe_id = 0;
next_list_id = 0;
next_source_num = 0;
config_defaults =
Globalreg::globalreg->entrytracker->RegisterAndGetFieldAs<datasourcetracker_defaults>("kismet.datasourcetracker.defaults",
TrackerElementFactory<datasourcetracker_defaults>(),
"Datasource default values");
if (Globalreg::globalreg->kismet_config->FetchOptBoolean("channel_hop", true)) {
_MSG("Enabling channel hopping by default on sources which support channel "
"control.", MSGFLAG_INFO);
config_defaults->set_hop(true);
}
std::string optval;
if ((optval = Globalreg::globalreg->kismet_config->FetchOpt("channel_hop_speed")) != "") {
try {
double dv = string_to_rate(optval, 1);
config_defaults->set_hop_rate(dv);
_MSG("Setting default channel hop rate to " + optval, MSGFLAG_INFO);
} catch (const std::exception& e) {
_MSG_FATAL("Could not parse channel_hop_speed= config: {}", e.what());
globalreg->fatal_condition = 1;
return;
}
} else {
_MSG("No channel_hop_speed= in kismet config, setting hop "
"rate to 1/sec", MSGFLAG_INFO);
config_defaults->set_hop_rate(1);
}
if (Globalreg::globalreg->kismet_config->FetchOptBoolean("split_source_hopping", true)) {
_MSG("Enabling channel list splitting on sources which share the same list "
"of channels", MSGFLAG_INFO);
config_defaults->set_split_same_sources(true);
}
if (Globalreg::globalreg->kismet_config->FetchOptBoolean("randomized_hopping", true)) {
_MSG("Enabling channel list shuffling to optimize overlaps", MSGFLAG_INFO);
config_defaults->set_random_channel_order(true);
}
if (Globalreg::globalreg->kismet_config->FetchOptBoolean("retry_on_source_error", true)) {
_MSG("Sources will be re-opened if they encounter an error", MSGFLAG_INFO);
config_defaults->set_retry_on_error(true);
}
std::string listen = Globalreg::globalreg->kismet_config->FetchOpt("remote_capture_listen");
uint32_t listenport =
Globalreg::globalreg->kismet_config->FetchOptUInt("remote_capture_port", 0);
if (listen.length() == 0) {
_MSG("No remote_capture_listen= line found in kismet.conf; no remote "
"capture will be enabled.", MSGFLAG_INFO);
}
if (listenport == 0) {
_MSG("No remote_capture_port= line found in kismet.conf; no remote "
"capture will be enabled.", MSGFLAG_INFO);
}
config_defaults->set_remote_cap_listen(listen);
config_defaults->set_remote_cap_port(listenport);
config_defaults->set_remote_cap_timestamp(Globalreg::globalreg->kismet_config->FetchOptBoolean("override_remote_timestamp", true));
httpd_pcap = std::make_shared<Datasourcetracker_Httpd_Pcap>();
// Register js module for UI
std::shared_ptr<Kis_Httpd_Registry> httpregistry =
Globalreg::FetchMandatoryGlobalAs<Kis_Httpd_Registry>("WEBREGISTRY");
httpregistry->register_js_module("kismet_ui_datasources",
"/js/kismet.ui.datasources.js");
database_log_enabled = false;
if (Globalreg::globalreg->kismet_config->FetchOptBoolean("kis_log_datasources", true)) {
unsigned int lograte =
Globalreg::globalreg->kismet_config->FetchOptUInt("kis_log_datasource_rate", 30);
_MSG("Saving datasources to the Kismet database log every " + UIntToString(lograte) +
" seconds.", MSGFLAG_INFO);
database_log_enabled = true;
database_logging = false;
database_log_timer =
timetracker->RegisterTimer(SERVER_TIMESLICES_SEC * lograte, NULL, 1,
[this](int) -> int {
{
local_locker l(&dst_lock);
if (database_logging) {
_MSG("Attempting to log datasources, but datasources are still "
"being saved from the last logging attempt. It's possible "
"your system is extremely over capacity; try increasing the "
"delay in 'kis_log_datasource_rate' in kismet_logging.conf",
MSGFLAG_ERROR);
return 1;
}
database_logging = true;
}
std::thread t([this] {
databaselog_write_datasources();
{
local_locker l(&dst_lock);
database_logging = false;
}
});
t.detach();
return 1;
});
} else {
database_log_timer = -1;
}
// Create an alert for source errors
auto alertracker = Globalreg::FetchMandatoryGlobalAs<Alertracker>("ALERTTRACKER");
alertracker->DefineAlert("SOURCEERROR", sat_second, 1, sat_second, 10);
alertracker->ActivateConfiguredAlert("SOURCEERROR",
"A data source encountered an error. Depending on the source configuration "
"Kismet may automatically attempt to re-open the source.");
std::vector<std::string> src_vec;
int option_idx = 0;
static struct option packetsource_long_options[] = {
{ "capture-source", required_argument, 0, 'c' },
{ 0, 0, 0, 0 }
};
optind = 0;
// Activate remote capture
listen = config_defaults->get_remote_cap_listen();
listenport = config_defaults->get_remote_cap_port();
if (config_defaults->get_remote_cap_listen().length() != 0 &&
config_defaults->get_remote_cap_port() != 0) {
_MSG("Launching remote capture server on " + listen + ":" +
UIntToString(listenport), MSGFLAG_INFO);
if (ConfigureServer(listenport, 1024, listen, std::vector<std::string>()) < 0) {
_MSG("Failed to launch remote capture TCP server, check your "
"remote_capture_listen= and remote_capture_port= lines in "
"kismet.conf", MSGFLAG_FATAL);
Globalreg::globalreg->fatal_condition = 1;
}
}
remote_complete_timer = -1;
while (1) {
int r = getopt_long(Globalreg::globalreg->argc, Globalreg::globalreg->argv, "-c:",
packetsource_long_options, &option_idx);
if (r < 0) break;
if (r == 'c') {
used_args = true;
src_vec.push_back(std::string(optarg));
}
}
if (used_args) {
_MSG("Data sources passed on the command line (via -c source), ignoring "
"source= definitions in the Kismet config file.", MSGFLAG_INFO);
} else {
src_vec = Globalreg::globalreg->kismet_config->FetchOptVec("source");
}
if (src_vec.size() == 0) {
_MSG("No data sources defined; Kismet will not capture anything until "
"a source is added.", MSGFLAG_INFO);
return;
}
auto stagger_thresh =
Globalreg::globalreg->kismet_config->FetchOptUInt("source_stagger_threshold", 16);
auto simul_open =
Globalreg::globalreg->kismet_config->FetchOptUInt("source_launch_group", 10);
auto simul_open_delay =
Globalreg::globalreg->kismet_config->FetchOptUInt("source_launch_delay", 10);
auto launch_func = [](Datasourcetracker *dst, std::string src) {
dst->open_datasource(src,
[src](bool success, std::string reason, SharedDatasource) {
if (success) {
_MSG_INFO("Data source '{}' launched successfully", src);
} else {
if (reason.length() != 0) {
_MSG_ERROR("Data source '{}' failed to launch: {}", src, reason);
} else {
_MSG_ERROR("Data source '{}' failed to launch, no error provided.", src);
}
}
});
};
if (stagger_thresh == 0 || src_vec.size() <= stagger_thresh) {
auto source_t = std::thread([launch_func](Datasourcetracker *dst,
const std::vector<std::string>& src_vec) {
for (auto i : src_vec) {
launch_func(dst, i);
}
}, this, src_vec);
source_t.detach();
} else {
std::vector<std::string> work_vec;
unsigned int group_number = 0;
for (auto i : src_vec) {
work_vec.push_back(i);
if (work_vec.size() > simul_open) {
// Pass a copy of the work vec so that we can immediately clear it
auto launch_t = std::thread([launch_func, simul_open_delay](Datasourcetracker *dst,
const std::vector<std::string> src_vec, unsigned int gn) {
// All the threads launch more or less at once, so each thread sleeps for
// its allocated amount of time before launching the vector
sleep(gn * simul_open_delay);
_MSG_INFO("Launching local source group {}", gn + 1);
for (auto i : src_vec) {
launch_func(dst, i);
}
}, this, work_vec, group_number);
launch_t.detach();
work_vec.clear();
group_number++;
}
}
// Launch the last of the group
auto launch_t = std::thread([launch_func, simul_open_delay](Datasourcetracker *dst,
const std::vector<std::string> src_vec, unsigned int gn) {
sleep(gn * simul_open_delay);
_MSG_INFO("Launching local source group {}", gn);
for (auto i : src_vec) {
launch_func(dst, i);
}
}, this, work_vec, group_number);
launch_t.detach();
}
return;
}
void Datasourcetracker::Deferred_Shutdown() {
local_locker lock(&dst_lock);
for (auto i : *datasource_vec) {
std::static_pointer_cast<KisDatasource>(i)->close_source();
}
}
void Datasourcetracker::iterate_datasources(DST_Worker *in_worker) {
local_locker lock(&dst_lock);
for (auto kds : *datasource_vec) {
in_worker->handle_datasource(std::static_pointer_cast<KisDatasource>(kds));
}
in_worker->finalize();
}
bool Datasourcetracker::remove_datasource(const uuid& in_uuid) {
local_locker lock(&dst_lock);
// Look for it in the sources vec and fully close it and get rid of it
for (auto i = datasource_vec->begin(); i != datasource_vec->end(); ++i) {
SharedDatasource kds = std::static_pointer_cast<KisDatasource>(*i);
if (kds->get_source_uuid() == in_uuid) {
std::stringstream ss;
_MSG_INFO("Closing source '{}' and removing it from the list of available "
"datasources.", kds->get_source_name());
// Close it
kds->close_source();
// Remove it
datasource_vec->erase(i);
// Done
return true;
}
}
return false;
}
SharedDatasource Datasourcetracker::find_datasource(const uuid& in_uuid) {
local_shared_locker lock(&dst_lock);
for (auto i : *datasource_vec) {
SharedDatasource kds = std::static_pointer_cast<KisDatasource>(i);
if (kds->get_source_uuid() == in_uuid)
return kds;
}
return nullptr;
}
bool Datasourcetracker::close_datasource(const uuid& in_uuid) {
local_locker lock(&dst_lock);
for (auto i : *datasource_vec) {
SharedDatasource kds = std::static_pointer_cast<KisDatasource>(i);
if (kds->get_source_uuid() == in_uuid) {
std::stringstream ss;
_MSG_INFO("Closing source '{}'", kds->get_source_name());
// Close it
kds->close_source();
// Done
return true;
}
}
return false;
}
int Datasourcetracker::register_datasource(SharedDatasourceBuilder in_builder) {
local_locker lock(&dst_lock);
for (auto i : *proto_vec) {
SharedDatasourceBuilder b = std::static_pointer_cast<KisDatasourceBuilder>(i);
if (StrLower(b->get_source_type()) == StrLower(in_builder->get_source_type())) {
_MSG_ERROR("Already registered a data source for type '{}', check that you don't have "
"two copies of the same plugin installed in different locations or under "
"different names.", b->get_source_type());
return -1;
}
}
proto_vec->push_back(in_builder);
return 1;
}
void Datasourcetracker::open_datasource(const std::string& in_source,
const std::function<void (bool, std::string, SharedDatasource)>& in_cb) {
// fprintf(stderr, "debug - DST open source %s\n", in_source.c_str());
// Open a datasource only from the string definition
std::string interface;
std::string options;
std::vector<opt_pair> opt_vec;
std::string type;
size_t cpos = in_source.find(":");
// Parse basic options and interface, extract type
if (cpos == std::string::npos) {
interface = in_source;
type = "auto";
} else {
interface = in_source.substr(0, cpos);
options = in_source.substr(cpos + 1, in_source.size() - cpos);
StringToOpts(options, ",", &opt_vec);
type = StrLower(FetchOpt("type", &opt_vec));
if (type == "")
type = "auto";
}
// So long as we have a type - that is, an explicitly defined type which
// is not "auto" - we know what driver is supposed to open it. We look
// for that driver in the prototype vector, confirm it can open it, and fire
// the launch command at it
if (type != "auto") {
local_demand_locker lock(&dst_lock);
lock.lock();
SharedDatasourceBuilder proto;
bool proto_found = false;
for (auto i : *proto_vec) {
proto = std::static_pointer_cast<KisDatasourceBuilder>(i);
if (StrLower(proto->get_source_type()) == StrLower(type)) {
proto_found = true;
break;
}
}
if (!proto_found) {
std::stringstream ss;
ss << "Unable to find datasource for '" << type << "'. Make sure "
"that any plugins required are loaded and that the capture "
"interface is available.";
if (in_cb != NULL) {
lock.unlock();
in_cb(false, ss.str(), NULL);
lock.lock();
}
return;
}
// Open the source with the processed options
open_datasource(in_source, proto, in_cb);
return;
}
// Otherwise we have to initiate a probe, which is async itself, and
// tell it to call our CB when it completes. The probe will find if there
// is a driver that can claim the source string we were given, and
// we'll initiate opening it if there is
_MSG_INFO("Probing interface '{}' to find datasource type", interface);
// Create a DSTProber to handle the probing
SharedDSTProbe dst_probe(new DST_DatasourceProbe(in_source, proto_vec));
unsigned int probeid = ++next_probe_id;
// Record and initiate it
{
local_locker dl(&dst_lock);
probing_map[probeid] = dst_probe;
}
// Initiate the probe
dst_probe->probe_sources([this, probeid, in_cb](SharedDatasourceBuilder builder) {
// Lock on completion
local_demand_locker lock(&dst_lock);
lock.lock();
// fprintf(stderr, "debug - moving probe to completed vec\n");
auto i = probing_map.find(probeid);
if (i != probing_map.end()) {
// fprintf(stderr, "debug - dst - calling callback\n");
std::stringstream ss;
if (builder == NULL) {
// fprintf(stderr, "debug - DST - callback with fail\n");
// We couldn't find a type, return an error to our initial open CB
ss << "Unable to find driver for '" << i->second->get_definition() <<
"'. Make sure that any plugins required are loaded.";
_MSG(ss.str(), MSGFLAG_ERROR);
lock.unlock();
in_cb(false, ss.str(), NULL);
lock.lock();
} else {
ss << "Found type '" << builder->get_source_type() << "' for '" <<
i->second->get_definition() << "'";
_MSG(ss.str(), MSGFLAG_INFO);
// Initiate an open w/ a known builder
open_datasource(i->second->get_definition(), builder, in_cb);
}
probing_complete_vec.push_back(i->second);
probing_map.erase(i);
schedule_cleanup();
} else {
// fprintf(stderr, "debug - DST couldn't find response %u\n", probeid);
}
});
return;
}
void Datasourcetracker::open_datasource(const std::string& in_source,
SharedDatasourceBuilder in_proto,
const std::function<void (bool, std::string, SharedDatasource)>& in_cb) {
local_locker lock(&dst_lock);
// Make a data source from the builder
SharedDatasource ds = in_proto->build_datasource(in_proto);
ds->open_interface(in_source, 0,
[this, ds, in_cb] (unsigned int, bool success, std::string reason) {
// Always merge it so that it gets scheduled for re-opening; when we
// know the type we know how to keep trying
merge_source(ds);
// Whenever we succeed (or fail) at opening a deferred open source,
// call our callback w/ whatever we know
if (success) {
in_cb(true, "", ds);
} else {
// It's 'safe' to put them in the broken source vec because all we do is
// clear that vector on a timer; if the source is in error state but
// bound elsewhere in the system it won't be removed.
local_locker lock(&dst_lock);
broken_source_vec.push_back(ds);
in_cb(false, reason, ds);
schedule_cleanup();
}
});
}
void Datasourcetracker::merge_source(SharedDatasource in_source) {
local_locker lock(&dst_lock);
// Get the UUID and compare it to our map; re-use a UUID if we knew
// it before, otherwise add a new one
uuid u = in_source->get_source_uuid();
auto i = uuid_source_num_map.find(u);
if (i != uuid_source_num_map.end()) {
in_source->set_source_number(i->second);
} else {
in_source->set_source_number(++next_source_num);
uuid_source_num_map[u] = in_source->get_source_number();
}
// Figure out channel hopping
calculate_source_hopping(in_source);
if (database_log_enabled) {
std::shared_ptr<KisDatabaseLogfile> dbf =
Globalreg::FetchGlobalAs<KisDatabaseLogfile>("DATABASELOG");
if (dbf != NULL) {
dbf->log_datasource(in_source);
}
}
datasource_vec->push_back(in_source);
}
void Datasourcetracker::list_interfaces(const std::function<void (std::vector<SharedInterface>)>& in_cb) {
// Create a DSTProber to handle the probing
auto dst_list = std::make_shared<DST_DatasourceList>(proto_vec);
unsigned int listid = 0;
{
local_locker lock(&dst_lock);
listid = ++next_list_id;
// Record it
listing_map[listid] = dst_list;
}
// Initiate the probe
dst_list->list_sources([this, listid, in_cb](std::vector<SharedInterface> interfaces) {
// Lock on completion
local_demand_locker lock(&dst_lock);
lock.lock();
// Figure out what interfaces are in use by active sources and amend their
// UUID records in the listing
for (auto il = interfaces.begin(); il != interfaces.end(); ++il) {
for (auto s : *datasource_vec) {
SharedDatasource sds = std::static_pointer_cast<KisDatasource>(s);
if (!sds->get_source_remote() &&
((*il)->get_interface() == sds->get_source_interface() ||
(*il)->get_interface() == sds->get_source_cap_interface())) {
(*il)->set_in_use_uuid(sds->get_source_uuid());
break;
}
}
}
lock.unlock();
in_cb(interfaces);
lock.lock();
auto i = listing_map.find(listid);
if (i != listing_map.end()) {
listing_complete_vec.push_back(i->second);
listing_map.erase(i);
schedule_cleanup();
} else {
// fprintf(stderr, "debug - DST couldn't find response %u\n", probeid);
}
});
}
void Datasourcetracker::schedule_cleanup() {
local_locker lock(&dst_lock);
if (completion_cleanup_id >= 0)
return;
completion_cleanup_id =
timetracker->RegisterTimer(1, NULL, 0, [this] (int) -> int {
local_locker lock(&dst_lock);
completion_cleanup_id = -1;
probing_complete_vec.clear();
listing_complete_vec.clear();
broken_source_vec.clear();
return 0;
});