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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:nil -*-
#include <boost/program_options/variables_map.hpp>
#include <boost/program_options/parsers.hpp>
#include "auth/Auth.h"
#include "global/global_init.h"
#include "msg/Dispatcher.h"
#include "msg/Messenger.h"
#include "messages/MOSDOp.h"
#include "auth/DummyAuth.h"
namespace {
constexpr int CEPH_OSD_PROTOCOL = 10;
struct Server {
Server(CephContext* cct, unsigned msg_len)
: dummy_auth(cct), dispatcher(cct, msg_len)
{
msgr.reset(Messenger::create(cct, "async", entity_name_t::OSD(0), "server", 0));
dummy_auth.auth_registry.refresh_config();
msgr->set_cluster_protocol(CEPH_OSD_PROTOCOL);
msgr->set_default_policy(Messenger::Policy::stateless_server(0));
msgr->set_auth_client(&dummy_auth);
msgr->set_auth_server(&dummy_auth);
msgr->set_require_authorizer(false);
}
DummyAuthClientServer dummy_auth;
unique_ptr<Messenger> msgr;
struct ServerDispatcher : Dispatcher {
unsigned msg_len = 0;
bufferlist msg_data;
ServerDispatcher(CephContext* cct, unsigned msg_len)
: Dispatcher(cct), msg_len(msg_len)
{
msg_data.append_zero(msg_len);
}
bool ms_can_fast_dispatch_any() const override {
return true;
}
bool ms_can_fast_dispatch(const Message* m) const override {
return m->get_type() == CEPH_MSG_OSD_OP;
}
void ms_fast_dispatch(Message* m) override {
ceph_assert(m->get_type() == CEPH_MSG_OSD_OP);
const static pg_t pgid;
const static object_locator_t oloc;
const static hobject_t hobj(object_t(), oloc.key, CEPH_NOSNAP, pgid.ps(),
pgid.pool(), oloc.nspace);
static spg_t spgid(pgid);
MOSDOp *rep = new MOSDOp(0, 0, hobj, spgid, 0, 0, 0);
bufferlist data(msg_data);
rep->write(0, msg_len, data);
rep->set_tid(m->get_tid());
m->get_connection()->send_message(rep);
m->put();
}
bool ms_dispatch(Message*) override {
ceph_abort();
}
bool ms_handle_reset(Connection*) override {
return true;
}
void ms_handle_remote_reset(Connection*) override {
}
bool ms_handle_refused(Connection*) override {
return true;
}
} dispatcher;
};
}
static void run(CephContext* cct, entity_addr_t addr, unsigned bs)
{
std::cout << "async server listening at " << addr << std::endl;
Server server{cct, bs};
server.msgr->bind(addr);
server.msgr->add_dispatcher_head(&server.dispatcher);
server.msgr->start();
server.msgr->wait();
}
int main(int argc, char** argv)
{
namespace po = boost::program_options;
po::options_description desc{"Allowed options"};
desc.add_options()
("help,h", "show help message")
("addr", po::value<std::string>()->default_value("v1:127.0.0.1:9010"),
"server address")
("bs", po::value<unsigned>()->default_value(0),
"server block size")
("v1-crc-enabled", po::value<bool>()->default_value(false),
"enable v1 CRC checks");
po::variables_map vm;
std::vector<std::string> unrecognized_options;
try {
auto parsed = po::command_line_parser(argc, argv)
.options(desc)
.allow_unregistered()
.run();
po::store(parsed, vm);
if (vm.count("help")) {
std::cout << desc << std::endl;
return 0;
}
po::notify(vm);
unrecognized_options = po::collect_unrecognized(parsed.options, po::include_positional);
} catch(const po::error& e) {
std::cerr << "error: " << e.what() << std::endl;
return 1;
}
auto addr = vm["addr"].as<std::string>();
entity_addr_t target_addr;
target_addr.parse(addr.c_str(), nullptr);
auto bs = vm["bs"].as<unsigned>();
auto v1_crc_enabled = vm["v1-crc-enabled"].as<bool>();
std::vector<const char*> args(argv, argv + argc);
auto cct = global_init(nullptr, args,
CEPH_ENTITY_TYPE_CLIENT,
CODE_ENVIRONMENT_UTILITY,
CINIT_FLAG_NO_MON_CONFIG);
common_init_finish(cct.get());
if (v1_crc_enabled) {
cct->_conf.set_val("ms_crc_header", "true");
cct->_conf.set_val("ms_crc_data", "true");
} else {
cct->_conf.set_val("ms_crc_header", "false");
cct->_conf.set_val("ms_crc_data", "false");
}
run(cct.get(), target_addr, bs);
}
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