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devicetracker_httpd.cc
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devicetracker_httpd.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 <memory>
#include <stdio.h>
#include <time.h>
#include <list>
#include <map>
#include <vector>
#include "kismet_algorithm.h"
#include <string>
#include <sstream>
#include <pthread.h>
#include "globalregistry.h"
#include "util.h"
#include "configfile.h"
#include "messagebus.h"
#include "packetchain.h"
#include "devicetracker.h"
#include "packet.h"
#include "gpstracker.h"
#include "alertracker.h"
#include "manuf.h"
#include "entrytracker.h"
#include "devicetracker_component.h"
#include "json_adapter.h"
#include "structured.h"
#include "kismet_json.h"
#include "base64.h"
// HTTP interfaces
bool Devicetracker::Httpd_VerifyPath(const char *path, const char *method) {
if (strcmp(method, "GET") == 0) {
// Simple fixed URLS
std::string stripped = Httpd_StripSuffix(path);
bool can_serialize = Httpd_CanSerialize(path);
// Explicit compare for .ekjson because it doesn't serialize the
// same way
if (strcmp(path, "/devices/all_devices.ekjson") == 0)
return true;
if (stripped == "/phy/all_phys" && can_serialize)
return true;
if (stripped == "/phy/all_phys_dt" && can_serialize)
return true;
// Split URL and process
std::vector<std::string> tokenurl = StrTokenize(path, "/");
if (tokenurl.size() < 2)
return false;
if (tokenurl[1] == "devices") {
if (tokenurl.size() < 3)
return false;
// Do a by-key lookup and return the device or the device path
if (tokenurl[2] == "by-key") {
if (tokenurl.size() < 5) {
return false;
}
device_key key(tokenurl[3]);
if (key.get_error())
return false;
if (!Httpd_CanSerialize(tokenurl[4]))
return false;
auto tmi = FetchDevice(key);
if (tmi == NULL)
return false;
std::string target = Httpd_StripSuffix(tokenurl[4]);
if (target == "device") {
// Try to find the exact field
if (tokenurl.size() > 5) {
std::vector<std::string>::const_iterator first = tokenurl.begin() + 5;
std::vector<std::string>::const_iterator last = tokenurl.end();
std::vector<std::string> fpath(first, last);
if (tmi->get_child_path(fpath) == NULL) {
return false;
}
}
return true;
}
return false;
} else if (tokenurl[2] == "by-mac") {
if (tokenurl.size() < 5)
return false;
if (!Httpd_CanSerialize(tokenurl[4]))
return false;
mac_addr mac = mac_addr(tokenurl[3]);
if (mac.error) {
return false;
}
{
local_shared_locker devlock(&devicelist_mutex);
if (tracked_mac_multimap.count(mac) > 0)
return true;
}
return false;
} else if (tokenurl[2] == "last-time") {
if (tokenurl.size() < 5) {
return false;
}
long lastts;
if (sscanf(tokenurl[3].c_str(), "%ld", &lastts) != 1) {
return false;
}
// Explicit catch of ekjson
if (tokenurl[4] == "devices.ekjson")
return true;
return Httpd_CanSerialize(tokenurl[4]);
}
}
} else if (strcmp(method, "POST") == 0) {
// Split URL and process
std::vector<std::string> tokenurl = StrTokenize(path, "/");
if (tokenurl.size() < 2)
return false;
if (tokenurl[1] == "devices") {
if (tokenurl.size() < 4) {
return false;
} else if (tokenurl[2] == "summary") {
return Httpd_CanSerialize(tokenurl[3]);
} else if (tokenurl[2] == "last-time") {
if (tokenurl.size() < 5) {
return false;
}
long lastts;
if (sscanf(tokenurl[3].c_str(), "%ld", &lastts) != 1) {
fprintf(stderr, "debug - unable to parse ts\n");
return false;
}
return Httpd_CanSerialize(tokenurl[4]);
} else if (tokenurl[2] == "by-key") {
if (tokenurl.size() < 5) {
return false;
}
device_key key(tokenurl[3]);
if (key.get_error())
return false;
if (!Httpd_CanSerialize(tokenurl[4]))
return false;
if (FetchDevice(key) == NULL)
return false;
std::string target = Httpd_StripSuffix(tokenurl[4]);
if (target == "device") {
return true;
}
if (target == "set_name") {
return true;
}
if (target == "set_tag") {
return true;
}
} else if (tokenurl[2] == "by-mac") {
if (tokenurl.size() < 5)
return false;
if (!Httpd_CanSerialize(tokenurl[4]))
return false;
mac_addr mac = mac_addr(tokenurl[3]);
if (mac.error) {
return false;
}
{
local_shared_locker listlocker(&devicelist_mutex);
if (tracked_mac_multimap.count(mac) > 0)
return true;
}
return false;
} else if (tokenurl[2] == "by-phy") {
if (tokenurl.size() < 5)
return false;
if (!Httpd_CanSerialize(tokenurl[4]))
return false;
auto p = FetchPhyHandlerByName(tokenurl[3]);
if (p != NULL)
return true;
return false;
}
}
}
return false;
}
void Devicetracker::httpd_all_phys(std::string path, std::ostream &stream,
std::string in_wrapper_key) {
std::shared_ptr<TrackerElement> transmit;
std::shared_ptr<TrackerElementMap> wrapper;
auto phyvec =
std::make_shared<TrackerElementVector>(phy_base_id);
if (in_wrapper_key != "") {
wrapper = std::make_shared<TrackerElementMap>();
wrapper->insert(phyvec);
phyvec->set_local_name(in_wrapper_key);
transmit = wrapper;
} else {
transmit = phyvec;
}
auto anyphy = std::make_shared<kis_tracked_phy>(phy_base_id);
anyphy->set_from_phy(this, KIS_PHY_ANY);
phyvec->push_back(anyphy);
for (const auto& mi : phy_handler_map) {
auto p = std::make_shared<kis_tracked_phy>(phy_base_id);
p->set_from_phy(this, mi.first);
phyvec->push_back(p);
}
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(path), stream, wrapper, NULL);
}
int Devicetracker::Httpd_CreateStreamResponse(
Kis_Net_Httpd *httpd __attribute__((unused)),
Kis_Net_Httpd_Connection *connection,
const char *path, const char *method, const char *upload_data,
size_t *upload_data_size) {
if (strcmp(method, "GET") != 0) {
return MHD_YES;
}
// Allocate our buffer aux
Kis_Net_Httpd_Buffer_Stream_Aux *saux =
(Kis_Net_Httpd_Buffer_Stream_Aux *) connection->custom_extension;
BufferHandlerOStringStreambuf *streambuf =
new BufferHandlerOStringStreambuf(saux->get_rbhandler());
std::ostream stream(streambuf);
// Set our cleanup function
saux->set_aux(streambuf,
[](Kis_Net_Httpd_Buffer_Stream_Aux *aux) {
if (aux->aux != NULL)
delete((BufferHandlerOStringStreambuf *) (aux->aux));
});
// Set our sync function which is called by the webserver side before we
// clean up...
saux->set_sync([](Kis_Net_Httpd_Buffer_Stream_Aux *aux) {
if (aux->aux != NULL) {
((BufferHandlerOStringStreambuf *) aux->aux)->pubsync();
}
});
if (strcmp(path, "/devices/all_devices.ekjson") == 0) {
// Instantiate a manual serializer
JsonAdapter::Serializer serial;
auto fw = std::make_shared<devicetracker_function_worker>(
[&stream, &serial](Devicetracker *, std::shared_ptr<kis_tracked_device_base> d) -> bool {
serial.serialize(d, stream);
stream << "\n";
// Return false because we're not building a list, we're serializing
// per element
return false;
}, nullptr);
MatchOnDevices(fw);
return MHD_YES;
}
std::string stripped = Httpd_StripSuffix(path);
if (stripped == "/phy/all_phys") {
httpd_all_phys(path, stream);
return MHD_YES;
}
if (stripped == "/phy/all_phys_dt") {
httpd_all_phys(path, stream, "aaData");
return MHD_YES;
}
std::vector<std::string> tokenurl = StrTokenize(path, "/");
if (tokenurl.size() < 2)
return MHD_YES;
if (tokenurl[1] == "devices") {
if (tokenurl.size() < 5)
return MHD_YES;
if (tokenurl[2] == "by-key") {
if (tokenurl.size() < 5) {
return MHD_YES;
}
if (!Httpd_CanSerialize(tokenurl[4]))
return MHD_YES;
device_key key(tokenurl[3]);
auto dev = FetchDevice(key);
if (dev == NULL) {
stream << "Invalid device key";
return MHD_YES;
}
std::string target = Httpd_StripSuffix(tokenurl[4]);
if (target == "device") {
// Try to find the exact field
if (tokenurl.size() > 5) {
std::vector<std::string>::const_iterator first = tokenurl.begin() + 5;
std::vector<std::string>::const_iterator last = tokenurl.end();
std::vector<std::string> fpath(first, last);
local_shared_locker devlocker(&(dev->device_mutex));
SharedTrackerElement sub = dev->get_child_path(fpath);
if (sub == NULL) {
return MHD_YES;
}
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]), stream, sub, NULL);
return MHD_YES;
}
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]), stream, dev, NULL);
return MHD_YES;
} else {
return MHD_YES;
}
} else if (tokenurl[2] == "by-mac") {
if (tokenurl.size() < 5)
return MHD_YES;
if (!Httpd_CanSerialize(tokenurl[4]))
return MHD_YES;
local_shared_locker lock(&devicelist_mutex);
mac_addr mac = mac_addr(tokenurl[3]);
if (mac.error) {
return MHD_YES;
}
auto devvec = std::make_shared<TrackerElementVector>();
const auto& mmp = tracked_mac_multimap.equal_range(mac);
for (auto mmpi = mmp.first; mmpi != mmp.second; ++mmpi) {
devvec->push_back(mmpi->second);
}
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]), stream, devvec, NULL);
return MHD_YES;
} else if (tokenurl[2] == "last-time") {
if (tokenurl.size() < 5)
return MHD_YES;
// Is the timestamp an int?
long lastts;
if (sscanf(tokenurl[3].c_str(), "%ld", &lastts) != 1)
return MHD_YES;
// If it's negative, subtract from the current ts
if (lastts < 0) {
time_t now = time(0);
lastts = now + lastts;
}
if (!Httpd_CanSerialize(tokenurl[4]))
return MHD_YES;
std::shared_ptr<TrackerElementVector> devvec;
auto fw = std::make_shared<devicetracker_function_worker>(
[devvec, lastts](Devicetracker *,
std::shared_ptr<kis_tracked_device_base> d) -> bool {
if (d->get_last_time() <= lastts)
return false;
return true;
}, nullptr);
MatchOnDevices(fw);
devvec = fw->GetMatchedDevices();
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]), stream, devvec, NULL);
return MHD_YES;
}
}
return MHD_YES;
}
int Devicetracker::Httpd_PostComplete(Kis_Net_Httpd_Connection *concls) {
// Split URL and process
std::vector<std::string> tokenurl = StrTokenize(concls->url, "/");
auto saux = (Kis_Net_Httpd_Buffer_Stream_Aux *) concls->custom_extension;
auto streambuf = new BufferHandlerOStringStreambuf(saux->get_rbhandler());
std::ostream stream(streambuf);
saux->set_aux(streambuf,
[](Kis_Net_Httpd_Buffer_Stream_Aux *aux) {
if (aux->aux != NULL)
delete((BufferHandlerOStringStreambuf *) (aux->aux));
});
// Set our sync function which is called by the webserver side before we
// clean up...
saux->set_sync([](Kis_Net_Httpd_Buffer_Stream_Aux *aux) {
if (aux->aux != NULL) {
((BufferHandlerOStringStreambuf *) aux->aux)->pubsync();
}
});
// All URLs are at least /devices/summary/x or /devices/by-foo/y/x
if (tokenurl.size() < 4) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
// Common structured API data
SharedStructured structdata;
// Summarization vector
std::vector<SharedElementSummary> summary_vec;
// Wrapper, if any
std::string wrapper_name;
// Rename cache generated during simplification
auto rename_map = std::make_shared<TrackerElementSerializer::rename_map>();
SharedStructured regexdata;
time_t post_ts = 0;
try {
if (concls->variable_cache.find("json") !=
concls->variable_cache.end()) {
structdata =
std::make_shared<StructuredJson>(concls->variable_cache["json"]->str());
} else {
// fprintf(stderr, "debug - missing data\n");
throw StructuredDataException("Missing data");
}
} catch(const StructuredDataException& e) {
stream << "Invalid request: ";
stream << e.what();
concls->httpcode = 400;
return MHD_YES;
}
try {
if (structdata->hasKey("fields")) {
SharedStructured fields = structdata->getStructuredByKey("fields");
StructuredData::structured_vec fvec = fields->getStructuredArray();
for (const auto& i : fvec) {
if (i->isString()) {
auto s = std::make_shared<TrackerElementSummary>(i->getString());
summary_vec.push_back(s);
} else if (i->isArray()) {
StructuredData::string_vec mapvec = i->getStringVec();
if (mapvec.size() != 2) {
// fprintf(stderr, "debug - malformed rename pair\n");
stream << "Invalid request: Expected field, rename";
concls->httpcode = 400;
return MHD_YES;
}
auto s =
std::make_shared<TrackerElementSummary>(mapvec[0], mapvec[1]);
summary_vec.push_back(s);
}
}
}
// Get the wrapper, if one exists, default to empty if it doesn't
wrapper_name = structdata->getKeyAsString("wrapper", "");
if (structdata->hasKey("regex")) {
regexdata = structdata->getStructuredByKey("regex");
}
if (structdata->hasKey("last_time")) {
int64_t rawt = structdata->getKeyAsNumber("last_time");
if (rawt < 0)
post_ts = time(0) + rawt;
else
post_ts = rawt;
}
} catch(const StructuredDataException& e) {
stream << "Invalid request: ";
stream << e.what();
concls->httpcode = 400;
return MHD_YES;
}
try {
if (tokenurl[1] == "devices") {
if (tokenurl[2] == "by-mac") {
if (tokenurl.size() < 5) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
if (!Httpd_CanSerialize(tokenurl[4])) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
local_demand_locker lock(&devicelist_mutex);
if (!Httpd_CanSerialize(tokenurl[4])) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
mac_addr mac = mac_addr(tokenurl[3]);
if (mac.error) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
lock.lock();
if (tracked_mac_multimap.count(mac) == 0) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
lock.unlock();
std::string target = Httpd_StripSuffix(tokenurl[4]);
if (target == "devices") {
auto devvec = std::make_shared<TrackerElementVector>();
lock.lock();
auto mmp = tracked_mac_multimap.equal_range(mac);
lock.unlock();
for (auto mmpi = mmp.first; mmpi != mmp.second; ++mmpi) {
SharedTrackerElement simple;
SummarizeTrackerElement(mmpi->second, summary_vec, simple, rename_map);
devvec->push_back(simple);
}
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]), stream,
devvec, rename_map);
return MHD_YES;
}
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
} else if (tokenurl[2] == "by-key") {
if (tokenurl.size() < 5) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
if (!Httpd_CanSerialize(tokenurl[4])) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
device_key key(tokenurl[3]);
auto dev = FetchDevice(key);
if (dev == NULL) {
stream << "Invalid request";
concls->httpcode = 400;
return MHD_YES;
}
std::string target = Httpd_StripSuffix(tokenurl[4]);
if (target == "device") {
SharedTrackerElement simple;
local_shared_locker devlock(&(dev->device_mutex));
SummarizeTrackerElement(dev, summary_vec, simple, rename_map);
Globalreg::globalreg->entrytracker->Serialize(httpd->GetSuffix(tokenurl[4]),
stream, simple, rename_map);
return MHD_YES;
}
if (target == "set_name") {
std::string name;
// Must have a session to set the name
if (!httpd->HasValidSession(concls))
throw std::runtime_error("login required");
if (!structdata->hasKey("username"))
throw std::runtime_error("expected username in command dictionary");
name = structdata->getKeyAsString("username");
SetDeviceUserName(dev, name);
stream << "OK";
return MHD_YES;
}
if (target == "set_tag") {
std::string tag, content;
if (!httpd->HasValidSession(concls))
throw std::runtime_error("login required");
if (!structdata->hasKey("tagname"))
throw std::runtime_error("expected tagname in command dictionary");
if (!structdata->hasKey("tagvalue"))
throw std::runtime_error("expected tagvalue in command dictionary");
tag = structdata->getKeyAsString("tagname");
content = structdata->getKeyAsString("tagvalue");
SetDeviceTag(dev, tag, content);
stream << "OK";
return MHD_YES;
}
} else if (tokenurl[2] == "summary") {
// We don't lock device list up here because we use workers since it
// can be a multi-device return
SharedStructured colmapdata;
StructuredData::structured_num_map colmap;
if (structdata->hasKey("colmap")) {
colmapdata = structdata->getStructuredByKey("colmap");
colmap = colmapdata->getStructuredNumMap();
}
// Wrapper we insert under and transmission element we send
std::shared_ptr<TrackerElementMap> wrapper;
std::shared_ptr<TrackerElement> transmit;
// DT fields
SharedTrackerElement dt_length_elem = NULL;
SharedTrackerElement dt_filter_elem = NULL;
auto outdevs = std::make_shared<TrackerElementVector>(device_list_base_id);
unsigned int dt_start = 0;
unsigned int dt_length = 0;
int dt_draw = 0;
int in_dt_length = 0, in_dt_start = 0;
// Search string
std::string dt_search;
// Resolved paths to fields we search
std::vector<std::vector<int> > dt_search_paths;
int dt_order_col = -1;
int dt_order_dir = 0;
// Fields we search
std::vector<std::vector<int> > dt_order_fields;
if (structdata->getKeyAsBool("datatable", false)) {
// fprintf(stderr, "debug - we think we're doing a server-side datatable\n");
if (concls->variable_cache.find("start") !=
concls->variable_cache.end()) {
*(concls->variable_cache["start"]) >> in_dt_start;
}
if (concls->variable_cache.find("length") !=
concls->variable_cache.end()) {
*(concls->variable_cache["length"]) >> in_dt_length;
}
if (concls->variable_cache.find("draw") !=
concls->variable_cache.end()) {
*(concls->variable_cache["draw"]) >> dt_draw;
}
if (concls->variable_cache.find("search[value]") !=
concls->variable_cache.end()) {
dt_search = concls->variable_cache["search[value]"]->str();
}
// Search every field; we could make this more controlled by using
// the new colmap code but we don't really need to
if (dt_search.length() != 0) {
for (const auto& svi : summary_vec)
dt_search_paths.push_back(svi->resolved_path);
}
// We only handle sorting by the first column in the sort list; we
// don't support cascading sorts
if (concls->variable_cache.find("order[0][column]") !=
concls->variable_cache.end()) {
*(concls->variable_cache["order[0][column]"]) >> dt_order_col;
}
// Don't allow ordering by a column that doesn't make sense
auto colmap_index = colmap.find(dt_order_col);
if (colmap_index == colmap.end())
dt_order_col = -1;
if (dt_order_col >= 0 &&
concls->variable_cache.find("order[0][dir]") !=
concls->variable_cache.end()) {
std::string ord = concls->variable_cache["order[0][dir]"]->str();
if (ord == "asc")
dt_order_dir = 1;
// Resolve the paths
auto col_field_vec = colmap_index->second->getStringVec();
for (const auto& fn : col_field_vec) {
TrackerElementSummary s(fn);
dt_order_fields.push_back(s.resolved_path);
}
}
// Force a length if we think we're doing a smart position and
// something has gone wonky
if (in_dt_length <= 0 || in_dt_length > 500) {
fprintf(stderr, "debug - in datatables server-side length was out of "
"bounds, asked for %d\n", in_dt_length);
dt_length = 300;
} else {
dt_length = in_dt_length;
}
if (in_dt_start < 0)
dt_start = 0;
else
dt_start = in_dt_start;
// DT always has to wrap in an object
wrapper = std::make_shared<TrackerElementMap>();
transmit = wrapper;
// wrap in 'data' for DT
wrapper->insert(outdevs);
outdevs->set_local_name("data");
// Set the DT draw
auto draw_elem = std::make_shared<TrackerElementUInt64>(dt_draw_id, dt_draw);
draw_elem->set_local_name("draw");
wrapper->insert(draw_elem);
// Make the length and filter elements
{
local_shared_locker lock(devicelist_mutex);
dt_length_elem =
std::make_shared<TrackerElementUInt64>(dt_length_id, tracked_vec.size());
}
dt_length_elem->set_local_name("recordsTotal");
wrapper->insert(dt_length_elem);
dt_filter_elem =
std::make_shared<TrackerElementUInt64>(dt_filter_id);
dt_filter_elem->set_local_name("recordsFiltered");
wrapper->insert(dt_filter_elem);
}
if (regexdata != NULL) {
// If we're doing a basic regex outside of devicetables
// shenanigans...
auto worker = std::make_shared<devicetracker_pcre_worker>(regexdata);
MatchOnDevices(worker);
auto pcredevs = worker->GetMatchedDevices();
// Check DT ranges
if (dt_start >= pcredevs->size())
dt_start = 0;
if (dt_filter_elem != NULL)
SetTrackerValue<uint64_t>(dt_filter_elem, pcredevs->size());
// Sort the list by the selected column
if (dt_order_col >= 0 && dt_order_fields.size() > 0) {
kismet__stable_sort(pcredevs->begin(), pcredevs->end(),
[&](SharedTrackerElement a, SharedTrackerElement b) -> bool {
SharedTrackerElement fa;
SharedTrackerElement fb;
// Only sort on the first field; make sure we have any fields
if (dt_order_fields.size() == 0)
return false;
const auto& ofi = dt_order_fields[0];
fa = GetTrackerElementPath(ofi, a);
fb = GetTrackerElementPath(ofi, b);
if (fa == nullptr) {
if (dt_order_dir == 0) {
return true;
} else {
return false;
}
}
if (fb == nullptr) {
if (dt_order_dir == 0) {
return false;
} else {
return true;
}
}
if (dt_order_dir == 0)
return FastSortTrackerElementLess(fa, fb);
return FastSortTrackerElementLess(fb, fa);
});
}
// If we filtered, that's our list
TrackerElementVector::iterator vi;
// Set the iterator endpoint for our length
TrackerElementVector::iterator ei;
if (dt_length == 0 || dt_length + dt_start >= pcredevs->size())
ei = pcredevs->end();
else
ei = pcredevs->begin() + dt_start + dt_length;
for (vi = pcredevs->begin() + dt_start; vi != ei; ++vi) {
SharedTrackerElement simple;
SummarizeTrackerElement((*vi), summary_vec, simple, rename_map);
outdevs->push_back(simple);
}
} else if (dt_search_paths.size() != 0) {
// Otherwise, we're doing a search inside a datatables query,
// so go through every device and do a search on every element
// which we have flagged as searchable, and which is a string or
// mac which we can treat as a string.
auto worker =
std::make_shared<devicetracker_stringmatch_worker>(dt_search, dt_search_paths);
MatchOnDevices(worker);
auto matchvec = worker->GetMatchedDevices();
if (dt_order_col >= 0 && dt_order_fields.size() > 0) {
kismet__stable_sort(matchvec->begin(), matchvec->end(),
[&](SharedTrackerElement a, SharedTrackerElement b) -> bool {
SharedTrackerElement fa;
SharedTrackerElement fb;
// Only sort on the first field; make sure we have any fields
if (dt_order_fields.size() == 0)
return false;
const auto& ofi = dt_order_fields[0];
fa = GetTrackerElementPath(ofi, a);
fb = GetTrackerElementPath(ofi, b);
if (fa == nullptr) {
if (dt_order_dir == 0) {
return true;
} else {
return false;
}
}
if (fb == nullptr) {
if (dt_order_dir == 0) {
return false;
} else {
return true;
}
}
if (dt_order_dir == 0)
return FastSortTrackerElementLess(fa, fb);
return FastSortTrackerElementLess(fb, fa);
});
}
// Check DT ranges
if (dt_start >= matchvec->size())
dt_start = 0;
if (dt_filter_elem != NULL)
SetTrackerValue<uint64_t>(dt_filter_elem, matchvec->size());
// Set the iterator endpoint for our length
TrackerElementVector::iterator ei;
if (dt_length == 0 || dt_length + dt_start >= matchvec->size())
ei = matchvec->end();
else
ei = matchvec->begin() + dt_start + dt_length;
// If we filtered, that's our list
TrackerElementVector::iterator vi;
for (vi = matchvec->begin() + dt_start; vi != ei; ++vi) {
SharedTrackerElement simple;
SummarizeTrackerElement((*vi), summary_vec, simple, rename_map);
outdevs->push_back(simple);
}
} else {
// Only lock while copying the vector
local_demand_locker listlock(&devicelist_mutex);