ceph/src/rgw/librgw.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 /*
   5  * Ceph - scalable distributed file system
   6  *
   7  * Copyright (C) 2011 New Dream Network
   8  *
   9  * This is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License version 2.1, as published by the Free Software
  12  * Foundation.  See file COPYING.
  13  *
  14  */
  15
  16 #include "include/compat.h"
  17 #include <sys/types.h>
  18 #include <string.h>
  19 #include <chrono>
  20
  21 #include "include/types.h"
  22 #include "include/rados/librgw.h"
  23 #include "rgw/rgw_acl_s3.h"
  24 #include "rgw_acl.h"
  25
  26 #include "include/str_list.h"
  27 #include "include/stringify.h"
  28 #include "global/global_init.h"
  29 #include "global/signal_handler.h"
  30 #include "common/config.h"
  31 #include "common/errno.h"
  32 #include "common/Timer.h"
  33 #include "common/Throttle.h"
  34 #include "common/WorkQueue.h"
  35 #include "common/ceph_argparse.h"
  36 #include "common/ceph_context.h"
  37 #include "common/common_init.h"
  38 #include "common/dout.h"
  39
  40 #include "rgw_rados.h"
  41 #include "rgw_resolve.h"
  42 #include "rgw_op.h"
  43 #include "rgw_rest.h"
  44 #include "rgw_frontend.h"
  45 #include "rgw_request.h"
  46 #include "rgw_process.h"
  47 #include "rgw_rest_user.h"
  48 #include "rgw_rest_s3.h"
  49 #include "rgw_os_lib.h"
  50 #include "rgw_auth.h"
  51 #include "rgw_auth_s3.h"
  52 #include "rgw_lib.h"
  53 #include "rgw_lib_frontend.h"
  54 #include "rgw_http_client.h"
  55 #include "rgw_http_client_curl.h"
  56 #include "rgw_perf_counters.h"
  57
  58 #include <errno.h>
  59 #include <thread>
  60 #include <string>
  61 #include <mutex>
  62
  63
  64 #define dout_subsys ceph_subsys_rgw
  65
  66 bool global_stop = false;
  67
  68 static void handle_sigterm(int signum)
  69 {
  70   dout(20) << __func__ << " SIGUSR1 ignored" << dendl;
  71 }
  72
  73 namespace rgw {
  74
  75   using std::string;
  76
  77   static std::mutex librgw_mtx;
  78
  79   RGWLib rgwlib;
  80
  81   class C_InitTimeout : public Context {
  82   public:
  83     C_InitTimeout() {}
  84     void finish(int r) override {
  85       derr << "Initialization timeout, failed to initialize" << dendl;
  86       exit(1);
  87     }
  88   };
  89
  90   void RGWLibProcess::checkpoint()
  91   {
  92     m_tp.drain(&req_wq);
  93   }
  94
  95 #define MIN_EXPIRE_S 120
  96
  97   void RGWLibProcess::run()
  98   {
  99     /* write completion interval */
 100     RGWLibFS::write_completion_interval_s =
 101       cct->_conf->rgw_nfs_write_completion_interval_s;
 102
 103     /* start write timer */
 104     RGWLibFS::write_timer.resume();
 105
 106     /* gc loop */
 107     while (! shutdown) {
 108       lsubdout(cct, rgw, 5) << "RGWLibProcess GC" << dendl;
 109
 110       /* dirent invalidate timeout--basically, the upper-bound on
 111        * inconsistency with the S3 namespace */
 112       auto expire_s = cct->_conf->rgw_nfs_namespace_expire_secs;
 113
 114       /* delay between gc cycles */
 115       auto delay_s = std::max(int64_t(1), std::min(int64_t(MIN_EXPIRE_S), expire_s/2));
 116
 117       unique_lock uniq(mtx);
 118     restart:
 119       int cur_gen = gen;
 120       for (auto iter = mounted_fs.begin(); iter != mounted_fs.end();
 121            ++iter) {
 122         RGWLibFS* fs = iter->first->ref();
 123         uniq.unlock();
 124         fs->gc();
 125         fs->update_user();
 126         fs->rele();
 127         uniq.lock();
 128         if (cur_gen != gen)
 129           goto restart; /* invalidated */
 130       }
 131       uniq.unlock();
 132       std::this_thread::sleep_for(std::chrono::seconds(delay_s));
 133     }
 134   }
 135
 136   void RGWLibProcess::handle_request(RGWRequest* r)
 137   {
 138     /*
 139      * invariant: valid requests are derived from RGWLibRequst
 140      */
 141     RGWLibRequest* req = static_cast<RGWLibRequest*>(r);
 142
 143     // XXX move RGWLibIO and timing setup into process_request
 144
 145 #if 0 /* XXX */
 146     utime_t tm = ceph_clock_now();
 147 #endif
 148
 149     RGWLibIO io_ctx;
 150
 151     int ret = process_request(req, &io_ctx);
 152     if (ret < 0) {
 153       /* we don't really care about return code */
 154       dout(20) << "process_request() returned " << ret << dendl;
 155
 156     }
 157     delete req;
 158   } /* handle_request */
 159
 160   int RGWLibProcess::process_request(RGWLibRequest* req)
 161   {
 162     // XXX move RGWLibIO and timing setup into process_request
 163
 164 #if 0 /* XXX */
 165     utime_t tm = ceph_clock_now();
 166 #endif
 167
 168     RGWLibIO io_ctx;
 169
 170     int ret = process_request(req, &io_ctx);
 171     if (ret < 0) {
 172       /* we don't really care about return code */
 173       dout(20) << "process_request() returned " << ret << dendl;
 174     }
 175     return ret;
 176   } /* process_request */
 177
 178   static inline void abort_req(struct req_state *s, RGWOp *op, int err_no)
 179   {
 180     if (!s)
 181       return;
 182
 183     /* XXX the dump_errno and dump_bucket_from_state behaviors in
 184      * the abort_early (rgw_rest.cc) might be valuable, but aren't
 185      * safe to call presently as they return HTTP data */
 186
 187     perfcounter->inc(l_rgw_failed_req);
 188   } /* abort_req */
 189
 190   int RGWLibProcess::process_request(RGWLibRequest* req, RGWLibIO* io)
 191   {
 192     int ret = 0;
 193     bool should_log = true; // XXX
 194
 195     dout(1) << "====== " << __func__
 196             << " starting new request req=" << hex << req << dec
 197             << " ======" << dendl;
 198
 199     /*
 200      * invariant: valid requests are derived from RGWOp--well-formed
 201      * requests should have assigned RGWRequest::op in their descendant
 202      * constructor--if not, the compiler can find it, at the cost of
 203      * a runtime check
 204      */
 205     RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
 206     if (! op) {
 207       dout(1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
 208       return -EINVAL;
 209     }
 210
 211     io->init(req->cct);
 212
 213     perfcounter->inc(l_rgw_req);
 214
 215     RGWEnv& rgw_env = io->get_env();
 216
 217     /* XXX
 218      * until major refactoring of req_state and req_info, we need
 219      * to build their RGWEnv boilerplate from the RGWLibRequest,
 220      * pre-staging any strings (HTTP_HOST) that provoke a crash when
 221      * not found
 222      */
 223
 224     /* XXX for now, use "";  could be a legit hostname, or, in future,
 225      * perhaps a tenant (Yehuda) */
 226     rgw_env.set("HTTP_HOST", "");
 227
 228     /* XXX and -then- bloat up req_state with string copies from it */
 229     struct req_state rstate(req->cct, &rgw_env, req->get_user(), req->id);
 230     struct req_state *s = &rstate;
 231
 232     // XXX fix this
 233     s->cio = io;
 234
 235     RGWObjectCtx rados_ctx(store, s); // XXX holds std::map
 236
 237     auto sysobj_ctx = store->svc.sysobj->init_obj_ctx();
 238     s->sysobj_ctx = &sysobj_ctx;
 239
 240     /* XXX and -then- stash req_state pointers everywhere they are needed */
 241     ret = req->init(rgw_env, &rados_ctx, io, s);
 242     if (ret < 0) {
 243       dout(10) << "failed to initialize request" << dendl;
 244       abort_req(s, op, ret);
 245       goto done;
 246     }
 247
 248     /* req is-a RGWOp, currently initialized separately */
 249     ret = req->op_init();
 250     if (ret < 0) {
 251       dout(10) << "failed to initialize RGWOp" << dendl;
 252       abort_req(s, op, ret);
 253       goto done;
 254     }
 255
 256     /* now expected by rgw_log_op() */
 257     rgw_env.set("REQUEST_METHOD", s->info.method);
 258     rgw_env.set("REQUEST_URI", s->info.request_uri);
 259     rgw_env.set("QUERY_STRING", "");
 260
 261     try {
 262       /* XXX authorize does less here then in the REST path, e.g.,
 263        * the user's info is cached, but still incomplete */
 264       ldpp_dout(s, 2) << "authorizing" << dendl;
 265       ret = req->authorize(op);
 266       if (ret < 0) {
 267         dout(10) << "failed to authorize request" << dendl;
 268         abort_req(s, op, ret);
 269         goto done;
 270       }
 271
 272       /* FIXME: remove this after switching all handlers to the new
 273        * authentication infrastructure. */
 274       if (! s->auth.identity) {
 275         s->auth.identity = rgw::auth::transform_old_authinfo(s);
 276       }
 277
 278       ldpp_dout(s, 2) << "reading op permissions" << dendl;
 279       ret = req->read_permissions(op);
 280       if (ret < 0) {
 281         abort_req(s, op, ret);
 282         goto done;
 283       }
 284
 285       ldpp_dout(s, 2) << "init op" << dendl;
 286       ret = op->init_processing();
 287       if (ret < 0) {
 288         abort_req(s, op, ret);
 289         goto done;
 290       }
 291
 292       ldpp_dout(s, 2) << "verifying op mask" << dendl;
 293       ret = op->verify_op_mask();
 294       if (ret < 0) {
 295         abort_req(s, op, ret);
 296         goto done;
 297       }
 298
 299       ldpp_dout(s, 2) << "verifying op permissions" << dendl;
 300       ret = op->verify_permission();
 301       if (ret < 0) {
 302         if (s->system_request) {
 303           dout(2) << "overriding permissions due to system operation" << dendl;
 304         } else if (s->auth.identity->is_admin_of(s->user->user_id)) {
 305           dout(2) << "overriding permissions due to admin operation" << dendl;
 306         } else {
 307           abort_req(s, op, ret);
 308           goto done;
 309         }
 310       }
 311
 312       ldpp_dout(s, 2) << "verifying op params" << dendl;
 313       ret = op->verify_params();
 314       if (ret < 0) {
 315         abort_req(s, op, ret);
 316         goto done;
 317       }
 318
 319       ldpp_dout(s, 2) << "executing" << dendl;
 320       op->pre_exec();
 321       op->execute();
 322       op->complete();
 323
 324     } catch (const ceph::crypto::DigestException& e) {
 325       dout(0) << "authentication failed" << e.what() << dendl;
 326       abort_req(s, op, -ERR_INVALID_SECRET_KEY);
 327     }
 328
 329   done:
 330     try {
 331       io->complete_request();
 332     } catch (rgw::io::Exception& e) {
 333       dout(0) << "ERROR: io->complete_request() returned "
 334               << e.what() << dendl;
 335     }
 336     if (should_log) {
 337       rgw_log_op(store, nullptr /* !rest */, s,
 338                  (op ? op->name() : "unknown"), olog);
 339     }
 340
 341     int http_ret = s->err.http_ret;
 342
 343     ldpp_dout(s, 2) << "http status=" << http_ret << dendl;
 344
 345     dout(1) << "====== " << __func__
 346             << " req done req=" << hex << req << dec << " http_status="
 347             << http_ret
 348             << " ======" << dendl;
 349
 350     return (ret < 0 ? ret : s->err.ret);
 351   } /* process_request */
 352
 353   int RGWLibProcess::start_request(RGWLibContinuedReq* req)
 354   {
 355
 356     dout(1) << "====== " << __func__
 357             << " starting new continued request req=" << hex << req << dec
 358             << " ======" << dendl;
 359
 360     /*
 361      * invariant: valid requests are derived from RGWOp--well-formed
 362      * requests should have assigned RGWRequest::op in their descendant
 363      * constructor--if not, the compiler can find it, at the cost of
 364      * a runtime check
 365      */
 366     RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
 367     if (! op) {
 368       dout(1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
 369       return -EINVAL;
 370     }
 371
 372     struct req_state* s = req->get_state();
 373
 374     /* req is-a RGWOp, currently initialized separately */
 375     int ret = req->op_init();
 376     if (ret < 0) {
 377       dout(10) << "failed to initialize RGWOp" << dendl;
 378       abort_req(s, op, ret);
 379       goto done;
 380     }
 381
 382     /* XXX authorize does less here then in the REST path, e.g.,
 383      * the user's info is cached, but still incomplete */
 384     ldpp_dout(s, 2) << "authorizing" << dendl;
 385     ret = req->authorize(op);
 386     if (ret < 0) {
 387       dout(10) << "failed to authorize request" << dendl;
 388       abort_req(s, op, ret);
 389       goto done;
 390     }
 391
 392     /* FIXME: remove this after switching all handlers to the new authentication
 393      * infrastructure. */
 394     if (! s->auth.identity) {
 395       s->auth.identity = rgw::auth::transform_old_authinfo(s);
 396     }
 397
 398     ldpp_dout(s, 2) << "reading op permissions" << dendl;
 399     ret = req->read_permissions(op);
 400     if (ret < 0) {
 401       abort_req(s, op, ret);
 402       goto done;
 403     }
 404
 405     ldpp_dout(s, 2) << "init op" << dendl;
 406     ret = op->init_processing();
 407     if (ret < 0) {
 408       abort_req(s, op, ret);
 409       goto done;
 410     }
 411
 412     ldpp_dout(s, 2) << "verifying op mask" << dendl;
 413     ret = op->verify_op_mask();
 414     if (ret < 0) {
 415       abort_req(s, op, ret);
 416       goto done;
 417     }
 418
 419     ldpp_dout(s, 2) << "verifying op permissions" << dendl;
 420     ret = op->verify_permission();
 421     if (ret < 0) {
 422       if (s->system_request) {
 423         dout(2) << "overriding permissions due to system operation" << dendl;
 424       } else if (s->auth.identity->is_admin_of(s->user->user_id)) {
 425         dout(2) << "overriding permissions due to admin operation" << dendl;
 426       } else {
 427         abort_req(s, op, ret);
 428         goto done;
 429       }
 430     }
 431
 432     ldpp_dout(s, 2) << "verifying op params" << dendl;
 433     ret = op->verify_params();
 434     if (ret < 0) {
 435       abort_req(s, op, ret);
 436       goto done;
 437     }
 438
 439     op->pre_exec();
 440     req->exec_start();
 441
 442   done:
 443     return (ret < 0 ? ret : s->err.ret);
 444   }
 445
 446   int RGWLibProcess::finish_request(RGWLibContinuedReq* req)
 447   {
 448     RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
 449     if (! op) {
 450       dout(1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
 451       return -EINVAL;
 452     }
 453
 454     int ret = req->exec_finish();
 455     int op_ret = op->get_ret();
 456
 457     dout(1) << "====== " << __func__
 458             << " finishing continued request req=" << hex << req << dec
 459             << " op status=" << op_ret
 460             << " ======" << dendl;
 461
 462     return ret;
 463   }
 464
 465   int RGWLibFrontend::init()
 466   {
 467     pprocess = new RGWLibProcess(g_ceph_context, &env,
 468                                  g_conf()->rgw_thread_pool_size, conf);
 469     return 0;
 470   }
 471
 472   int RGWLib::init()
 473   {
 474     vector<const char*> args;
 475     return init(args);
 476   }
 477
 478   int RGWLib::init(vector<const char*>& args)
 479   {
 480     int r = 0;
 481
 482     /* alternative default for module */
 483     map<string,string> defaults = {
 484       { "debug_rgw", "1/5" },
 485       { "keyring", "$rgw_data/keyring" },
 486       { "log_file", "/var/log/radosgw/$cluster-$name.log" }
 487     };
 488
 489     cct = global_init(&defaults, args,
 490                       CEPH_ENTITY_TYPE_CLIENT,
 491                       CODE_ENVIRONMENT_DAEMON,
 492                       CINIT_FLAG_UNPRIVILEGED_DAEMON_DEFAULTS);
 493
 494     Mutex mutex("main");
 495     SafeTimer init_timer(g_ceph_context, mutex);
 496     init_timer.init();
 497     mutex.Lock();
 498     init_timer.add_event_after(g_conf()->rgw_init_timeout, new C_InitTimeout);
 499     mutex.Unlock();
 500
 501     common_init_finish(g_ceph_context);
 502
 503     rgw_tools_init(g_ceph_context);
 504
 505     rgw_init_resolver();
 506     rgw::curl::setup_curl(boost::none);
 507     rgw_http_client_init(g_ceph_context);
 508
 509     store = RGWStoreManager::get_storage(g_ceph_context,
 510                                          g_conf()->rgw_enable_gc_threads,
 511                                          g_conf()->rgw_enable_lc_threads,
 512                                          g_conf()->rgw_enable_quota_threads,
 513                                          g_conf()->rgw_run_sync_thread,
 514                                          g_conf().get_val<bool>("rgw_dynamic_resharding"));
 515
 516     if (!store) {
 517       mutex.Lock();
 518       init_timer.cancel_all_events();
 519       init_timer.shutdown();
 520       mutex.Unlock();
 521
 522       derr << "Couldn't init storage provider (RADOS)" << dendl;
 523       return -EIO;
 524     }
 525
 526     r = rgw_perf_start(g_ceph_context);
 527
 528     rgw_rest_init(g_ceph_context, store, store->svc.zone->get_zonegroup());
 529
 530     mutex.Lock();
 531     init_timer.cancel_all_events();
 532     init_timer.shutdown();
 533     mutex.Unlock();
 534
 535     if (r)
 536       return -EIO;
 537
 538     const string& ldap_uri = store->ctx()->_conf->rgw_ldap_uri;
 539     const string& ldap_binddn = store->ctx()->_conf->rgw_ldap_binddn;
 540     const string& ldap_searchdn = store->ctx()->_conf->rgw_ldap_searchdn;
 541     const string& ldap_searchfilter = store->ctx()->_conf->rgw_ldap_searchfilter;
 542     const string& ldap_dnattr =
 543       store->ctx()->_conf->rgw_ldap_dnattr;
 544     std::string ldap_bindpw = parse_rgw_ldap_bindpw(store->ctx());
 545
 546     ldh = new rgw::LDAPHelper(ldap_uri, ldap_binddn, ldap_bindpw.c_str(),
 547                               ldap_searchdn, ldap_searchfilter, ldap_dnattr);
 548     ldh->init();
 549     ldh->bind();
 550
 551     rgw_user_init(store);
 552     rgw_bucket_init(store->meta_mgr);
 553     rgw_log_usage_init(g_ceph_context, store);
 554
 555     // XXX ex-RGWRESTMgr_lib, mgr->set_logging(true)
 556
 557     if (!g_conf()->rgw_ops_log_socket_path.empty()) {
 558       olog = new OpsLogSocket(g_ceph_context, g_conf()->rgw_ops_log_data_backlog);
 559       olog->init(g_conf()->rgw_ops_log_socket_path);
 560     }
 561
 562     int port = 80;
 563     RGWProcessEnv env = { store, &rest, olog, port };
 564
 565     string fe_count{"0"};
 566     fec = new RGWFrontendConfig("rgwlib");
 567     fe = new RGWLibFrontend(env, fec);
 568
 569     init_async_signal_handler();
 570     register_async_signal_handler(SIGUSR1, handle_sigterm);
 571
 572     map<string, string> service_map_meta;
 573     service_map_meta["pid"] = stringify(getpid());
 574     service_map_meta["frontend_type#" + fe_count] = "rgw-nfs";
 575     service_map_meta["frontend_config#" + fe_count] = fec->get_config();
 576
 577     fe->init();
 578     if (r < 0) {
 579       derr << "ERROR: failed initializing frontend" << dendl;
 580       return r;
 581     }
 582
 583     fe->run();
 584
 585     r = store->register_to_service_map("rgw-nfs", service_map_meta);
 586     if (r < 0) {
 587       derr << "ERROR: failed to register to service map: " << cpp_strerror(-r) << dendl;
 588       /* ignore error */
 589     }
 590
 591     return 0;
 592   } /* RGWLib::init() */
 593
 594   int RGWLib::stop()
 595   {
 596     derr << "shutting down" << dendl;
 597
 598     fe->stop();
 599
 600     fe->join();
 601
 602     delete fe;
 603     delete fec;
 604     delete ldh;
 605
 606     unregister_async_signal_handler(SIGUSR1, handle_sigterm);
 607     shutdown_async_signal_handler();
 608
 609     rgw_log_usage_finalize();
 610
 611     delete olog;
 612
 613     RGWStoreManager::close_storage(store);
 614
 615     rgw_tools_cleanup();
 616     rgw_shutdown_resolver();
 617     rgw_http_client_cleanup();
 618     rgw::curl::cleanup_curl();
 619
 620     rgw_perf_stop(g_ceph_context);
 621
 622     dout(1) << "final shutdown" << dendl;
 623     cct.reset();
 624
 625     return 0;
 626   } /* RGWLib::stop() */
 627
 628   int RGWLibIO::set_uid(RGWRados *store, const rgw_user& uid)
 629   {
 630     int ret = rgw_get_user_info_by_uid(store, uid, user_info, NULL);
 631     if (ret < 0) {
 632       derr << "ERROR: failed reading user info: uid=" << uid << " ret="
 633            << ret << dendl;
 634     }
 635     return ret;
 636   }
 637
 638   int RGWLibRequest::read_permissions(RGWOp* op) {
 639     /* bucket and object ops */
 640     int ret =
 641       rgw_build_bucket_policies(rgwlib.get_store(), get_state());
 642     if (ret < 0) {
 643       ldout(get_state()->cct, 10) << "read_permissions (bucket policy) on "
 644                                   << get_state()->bucket << ":"
 645                                   << get_state()->object
 646                                   << " only_bucket=" << only_bucket()
 647                                   << " ret=" << ret << dendl;
 648       if (ret == -ENODATA)
 649         ret = -EACCES;
 650     } else if (! only_bucket()) {
 651       /* object ops */
 652       ret = rgw_build_object_policies(rgwlib.get_store(), get_state(),
 653                                       op->prefetch_data());
 654       if (ret < 0) {
 655         ldout(get_state()->cct, 10) << "read_permissions (object policy) on"
 656                                     << get_state()->bucket << ":"
 657                                     << get_state()->object
 658                                     << " ret=" << ret << dendl;
 659         if (ret == -ENODATA)
 660           ret = -EACCES;
 661       }
 662     }
 663     return ret;
 664   } /* RGWLibRequest::read_permissions */
 665
 666   int RGWHandler_Lib::authorize(const DoutPrefixProvider *dpp)
 667   {
 668     /* TODO: handle
 669      *  1. subusers
 670      *  2. anonymous access
 671      *  3. system access
 672      *  4. ?
 673      *
 674      *  Much or all of this depends on handling the cached authorization
 675      *  correctly (e.g., dealing with keystone) at mount time.
 676      */
 677     s->perm_mask = RGW_PERM_FULL_CONTROL;
 678
 679     // populate the owner info
 680     s->owner.set_id(s->user->user_id);
 681     s->owner.set_name(s->user->display_name);
 682
 683     return 0;
 684   } /* RGWHandler_Lib::authorize */
 685
 686 } /* namespace rgw */
 687
 688 extern "C" {
 689
 690 int librgw_create(librgw_t* rgw, int argc, char **argv)
 691 {
 692   using namespace rgw;
 693
 694   int rc = -EINVAL;
 695
 696   if (! g_ceph_context) {
 697     std::lock_guard<std::mutex> lg(librgw_mtx);
 698     if (! g_ceph_context) {
 699       vector<const char*> args;
 700       std::vector<std::string> spl_args;
 701       // last non-0 argument will be split and consumed
 702       if (argc > 1) {
 703         const std::string spl_arg{argv[(--argc)]};
 704         get_str_vec(spl_arg, " \t", spl_args);
 705       }
 706       argv_to_vec(argc, const_cast<const char**>(argv), args);
 707       // append split args, if any
 708       for (const auto& elt : spl_args) {
 709         args.push_back(elt.c_str());
 710       }
 711       rc = rgwlib.init(args);
 712     }
 713   }
 714
 715   *rgw = g_ceph_context->get();
 716
 717   return rc;
 718 }
 719
 720 void librgw_shutdown(librgw_t rgw)
 721 {
 722   using namespace rgw;
 723
 724   CephContext* cct = static_cast<CephContext*>(rgw);
 725   rgwlib.stop();
 726   cct->put();
 727 }
 728
 729 } /* extern "C" */