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-rw-r--r--src/rgw/rgw_lib.cc610
1 files changed, 610 insertions, 0 deletions
diff --git a/src/rgw/rgw_lib.cc b/src/rgw/rgw_lib.cc
new file mode 100644
index 000000000..f449cce21
--- /dev/null
+++ b/src/rgw/rgw_lib.cc
@@ -0,0 +1,610 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include <sys/types.h>
+#include <string.h>
+#include <chrono>
+
+#include "include/rados/librgw.h"
+#include "rgw_acl.h"
+
+#include "include/str_list.h"
+#include "global/signal_handler.h"
+#include "common/Timer.h"
+#include "common/WorkQueue.h"
+#include "common/ceph_argparse.h"
+#include "common/ceph_context.h"
+#include "common/common_init.h"
+#include "common/dout.h"
+
+#include "rgw_op.h"
+#include "rgw_rest.h"
+#include "rgw_log.h"
+#include "rgw_frontend.h"
+#include "rgw_request.h"
+#include "rgw_process.h"
+#include "rgw_auth.h"
+#include "rgw_lib.h"
+#include "rgw_lib_frontend.h"
+#include "rgw_perf_counters.h"
+#include "rgw_signal.h"
+#include "rgw_main.h"
+
+#include <errno.h>
+#include <thread>
+#include <string>
+#include <mutex>
+
+#define dout_subsys ceph_subsys_rgw
+
+using namespace std;
+
+namespace rgw {
+
+ RGWLib* g_rgwlib = nullptr;
+
+ class C_InitTimeout : public Context {
+ public:
+ C_InitTimeout() {}
+ void finish(int r) override {
+ derr << "Initialization timeout, failed to initialize" << dendl;
+ exit(1);
+ }
+ };
+
+ void RGWLibProcess::checkpoint()
+ {
+ m_tp.drain(&req_wq);
+ }
+
+#define MIN_EXPIRE_S 120
+
+ void RGWLibProcess::run()
+ {
+ /* write completion interval */
+ RGWLibFS::write_completion_interval_s =
+ cct->_conf->rgw_nfs_write_completion_interval_s;
+
+ /* start write timer */
+ RGWLibFS::write_timer.resume();
+
+ /* gc loop */
+ while (! shutdown) {
+ lsubdout(cct, rgw, 5) << "RGWLibProcess GC" << dendl;
+
+ /* dirent invalidate timeout--basically, the upper-bound on
+ * inconsistency with the S3 namespace */
+ auto expire_s = cct->_conf->rgw_nfs_namespace_expire_secs;
+
+ /* delay between gc cycles */
+ auto delay_s = std::max(int64_t(1), std::min(int64_t(MIN_EXPIRE_S), expire_s/2));
+
+ unique_lock uniq(mtx);
+ restart:
+ int cur_gen = gen;
+ for (auto iter = mounted_fs.begin(); iter != mounted_fs.end();
+ ++iter) {
+ RGWLibFS* fs = iter->first->ref();
+ uniq.unlock();
+ fs->gc();
+ const DoutPrefix dp(cct, dout_subsys, "librgw: ");
+ fs->update_user(&dp);
+ fs->rele();
+ uniq.lock();
+ if (cur_gen != gen)
+ goto restart; /* invalidated */
+ }
+ cv.wait_for(uniq, std::chrono::seconds(delay_s));
+ uniq.unlock();
+ }
+ }
+
+ void RGWLibProcess::handle_request(const DoutPrefixProvider *dpp, RGWRequest* r)
+ {
+ /*
+ * invariant: valid requests are derived from RGWLibRequst
+ */
+ RGWLibRequest* req = static_cast<RGWLibRequest*>(r);
+
+ // XXX move RGWLibIO and timing setup into process_request
+
+#if 0 /* XXX */
+ utime_t tm = ceph_clock_now();
+#endif
+
+ RGWLibIO io_ctx;
+
+ int ret = process_request(req, &io_ctx);
+ if (ret < 0) {
+ /* we don't really care about return code */
+ dout(20) << "process_request() returned " << ret << dendl;
+
+ }
+ delete req;
+ } /* handle_request */
+
+ int RGWLibProcess::process_request(RGWLibRequest* req)
+ {
+ // XXX move RGWLibIO and timing setup into process_request
+
+#if 0 /* XXX */
+ utime_t tm = ceph_clock_now();
+#endif
+
+ RGWLibIO io_ctx;
+
+ int ret = process_request(req, &io_ctx);
+ if (ret < 0) {
+ /* we don't really care about return code */
+ dout(20) << "process_request() returned " << ret << dendl;
+ }
+ return ret;
+ } /* process_request */
+
+ static inline void abort_req(req_state *s, RGWOp *op, int err_no)
+ {
+ if (!s)
+ return;
+
+ /* XXX the dump_errno and dump_bucket_from_state behaviors in
+ * the abort_early (rgw_rest.cc) might be valuable, but aren't
+ * safe to call presently as they return HTTP data */
+
+ perfcounter->inc(l_rgw_failed_req);
+ } /* abort_req */
+
+ int RGWLibProcess::process_request(RGWLibRequest* req, RGWLibIO* io)
+ {
+ int ret = 0;
+ bool should_log = true; // XXX
+
+ dout(1) << "====== " << __func__
+ << " starting new request req=" << hex << req << dec
+ << " ======" << dendl;
+
+ /*
+ * invariant: valid requests are derived from RGWOp--well-formed
+ * requests should have assigned RGWRequest::op in their descendant
+ * constructor--if not, the compiler can find it, at the cost of
+ * a runtime check
+ */
+ RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
+ if (! op) {
+ ldpp_dout(op, 1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
+ return -EINVAL;
+ }
+
+ io->init(req->cct);
+
+ perfcounter->inc(l_rgw_req);
+
+ RGWEnv& rgw_env = io->get_env();
+
+ /* XXX
+ * until major refactoring of req_state and req_info, we need
+ * to build their RGWEnv boilerplate from the RGWLibRequest,
+ * pre-staging any strings (HTTP_HOST) that provoke a crash when
+ * not found
+ */
+
+ /* XXX for now, use ""; could be a legit hostname, or, in future,
+ * perhaps a tenant (Yehuda) */
+ rgw_env.set("HTTP_HOST", "");
+
+ /* XXX and -then- bloat up req_state with string copies from it */
+ req_state rstate(req->cct, env, &rgw_env, req->id);
+ req_state *s = &rstate;
+
+ // XXX fix this
+ s->cio = io;
+
+ /* XXX and -then- stash req_state pointers everywhere they are needed */
+ ret = req->init(rgw_env, env.driver, io, s);
+ if (ret < 0) {
+ ldpp_dout(op, 10) << "failed to initialize request" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* req is-a RGWOp, currently initialized separately */
+ ret = req->op_init();
+ if (ret < 0) {
+ dout(10) << "failed to initialize RGWOp" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* now expected by rgw_log_op() */
+ rgw_env.set("REQUEST_METHOD", s->info.method);
+ rgw_env.set("REQUEST_URI", s->info.request_uri);
+ rgw_env.set("QUERY_STRING", "");
+
+ try {
+ /* XXX authorize does less here then in the REST path, e.g.,
+ * the user's info is cached, but still incomplete */
+ ldpp_dout(s, 2) << "authorizing" << dendl;
+ ret = req->authorize(op, null_yield);
+ if (ret < 0) {
+ dout(10) << "failed to authorize request" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* FIXME: remove this after switching all handlers to the new
+ * authentication infrastructure. */
+ if (! s->auth.identity) {
+ s->auth.identity = rgw::auth::transform_old_authinfo(s);
+ }
+
+ ldpp_dout(s, 2) << "reading op permissions" << dendl;
+ ret = req->read_permissions(op, null_yield);
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "init op" << dendl;
+ ret = op->init_processing(null_yield);
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "verifying op mask" << dendl;
+ ret = op->verify_op_mask();
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "verifying op permissions" << dendl;
+ ret = op->verify_permission(null_yield);
+ if (ret < 0) {
+ if (s->system_request) {
+ ldpp_dout(op, 2) << "overriding permissions due to system operation" << dendl;
+ } else if (s->auth.identity->is_admin_of(s->user->get_id())) {
+ ldpp_dout(op, 2) << "overriding permissions due to admin operation" << dendl;
+ } else {
+ abort_req(s, op, ret);
+ goto done;
+ }
+ }
+
+ ldpp_dout(s, 2) << "verifying op params" << dendl;
+ ret = op->verify_params();
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "executing" << dendl;
+ op->pre_exec();
+ op->execute(null_yield);
+ op->complete();
+
+ } catch (const ceph::crypto::DigestException& e) {
+ dout(0) << "authentication failed" << e.what() << dendl;
+ abort_req(s, op, -ERR_INVALID_SECRET_KEY);
+ }
+
+ done:
+ try {
+ io->complete_request();
+ } catch (rgw::io::Exception& e) {
+ dout(0) << "ERROR: io->complete_request() returned "
+ << e.what() << dendl;
+ }
+ if (should_log) {
+ rgw_log_op(nullptr /* !rest */, s, op, env.olog);
+ }
+
+ int http_ret = s->err.http_ret;
+
+ ldpp_dout(s, 2) << "http status=" << http_ret << dendl;
+
+ ldpp_dout(op, 1) << "====== " << __func__
+ << " req done req=" << hex << req << dec << " http_status="
+ << http_ret
+ << " ======" << dendl;
+
+ return (ret < 0 ? ret : s->err.ret);
+ } /* process_request */
+
+ int RGWLibProcess::start_request(RGWLibContinuedReq* req)
+ {
+
+ dout(1) << "====== " << __func__
+ << " starting new continued request req=" << hex << req << dec
+ << " ======" << dendl;
+
+ /*
+ * invariant: valid requests are derived from RGWOp--well-formed
+ * requests should have assigned RGWRequest::op in their descendant
+ * constructor--if not, the compiler can find it, at the cost of
+ * a runtime check
+ */
+ RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
+ if (! op) {
+ ldpp_dout(op, 1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
+ return -EINVAL;
+ }
+
+ req_state* s = req->get_state();
+ RGWLibIO& io_ctx = req->get_io();
+ RGWEnv& rgw_env = io_ctx.get_env();
+
+ rgw_env.set("HTTP_HOST", "");
+
+ int ret = req->init(rgw_env, env.driver, &io_ctx, s);
+ if (ret < 0) {
+ ldpp_dout(op, 10) << "failed to initialize request" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* req is-a RGWOp, currently initialized separately */
+ ret = req->op_init();
+ if (ret < 0) {
+ dout(10) << "failed to initialize RGWOp" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* XXX authorize does less here then in the REST path, e.g.,
+ * the user's info is cached, but still incomplete */
+ ldpp_dout(s, 2) << "authorizing" << dendl;
+ ret = req->authorize(op, null_yield);
+ if (ret < 0) {
+ dout(10) << "failed to authorize request" << dendl;
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ /* FIXME: remove this after switching all handlers to the new authentication
+ * infrastructure. */
+ if (! s->auth.identity) {
+ s->auth.identity = rgw::auth::transform_old_authinfo(s);
+ }
+
+ ldpp_dout(s, 2) << "reading op permissions" << dendl;
+ ret = req->read_permissions(op, null_yield);
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "init op" << dendl;
+ ret = op->init_processing(null_yield);
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "verifying op mask" << dendl;
+ ret = op->verify_op_mask();
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ ldpp_dout(s, 2) << "verifying op permissions" << dendl;
+ ret = op->verify_permission(null_yield);
+ if (ret < 0) {
+ if (s->system_request) {
+ ldpp_dout(op, 2) << "overriding permissions due to system operation" << dendl;
+ } else if (s->auth.identity->is_admin_of(s->user->get_id())) {
+ ldpp_dout(op, 2) << "overriding permissions due to admin operation" << dendl;
+ } else {
+ abort_req(s, op, ret);
+ goto done;
+ }
+ }
+
+ ldpp_dout(s, 2) << "verifying op params" << dendl;
+ ret = op->verify_params();
+ if (ret < 0) {
+ abort_req(s, op, ret);
+ goto done;
+ }
+
+ op->pre_exec();
+ req->exec_start();
+
+ done:
+ return (ret < 0 ? ret : s->err.ret);
+ }
+
+ int RGWLibProcess::finish_request(RGWLibContinuedReq* req)
+ {
+ RGWOp *op = (req->op) ? req->op : dynamic_cast<RGWOp*>(req);
+ if (! op) {
+ ldpp_dout(op, 1) << "failed to derive cognate RGWOp (invalid op?)" << dendl;
+ return -EINVAL;
+ }
+
+ int ret = req->exec_finish();
+ int op_ret = op->get_ret();
+
+ ldpp_dout(op, 1) << "====== " << __func__
+ << " finishing continued request req=" << hex << req << dec
+ << " op status=" << op_ret
+ << " ======" << dendl;
+
+ perfcounter->inc(l_rgw_req);
+
+ return ret;
+ }
+
+ int RGWLibFrontend::init()
+ {
+ std::string uri_prefix; // empty
+ pprocess = new RGWLibProcess(g_ceph_context, env,
+ g_conf()->rgw_thread_pool_size, uri_prefix, conf);
+ return 0;
+ }
+
+ void RGWLib::set_fe(rgw::RGWLibFrontend* fe)
+ {
+ this->fe = fe;
+ }
+
+ int RGWLib::init()
+ {
+ vector<const char*> args;
+ return init(args);
+ }
+
+ int RGWLib::init(vector<const char*>& args)
+ {
+ /* alternative default for module */
+ map<std::string,std::string> defaults = {
+ { "debug_rgw", "1/5" },
+ { "keyring", "$rgw_data/keyring" },
+ { "log_file", "/var/log/radosgw/$cluster-$name.log" },
+ { "objecter_inflight_ops", "24576" },
+ // require a secure mon connection by default
+ { "ms_mon_client_mode", "secure" },
+ { "auth_client_required", "cephx" },
+ };
+
+ cct = rgw_global_init(&defaults, args,
+ CEPH_ENTITY_TYPE_CLIENT,
+ CODE_ENVIRONMENT_DAEMON,
+ CINIT_FLAG_UNPRIVILEGED_DAEMON_DEFAULTS);
+
+ ceph::mutex mutex = ceph::make_mutex("main");
+ SafeTimer init_timer(g_ceph_context, mutex);
+ init_timer.init();
+ mutex.lock();
+ init_timer.add_event_after(g_conf()->rgw_init_timeout, new C_InitTimeout);
+ mutex.unlock();
+
+ /* stage all front-ends (before common-init-finish) */
+ main.init_frontends1(true /* nfs */);
+
+ common_init_finish(g_ceph_context);
+
+ main.init_perfcounters();
+ main.init_http_clients();
+
+ main.init_storage();
+ if (! main.get_driver()) {
+ mutex.lock();
+ init_timer.cancel_all_events();
+ init_timer.shutdown();
+ mutex.unlock();
+
+ derr << "Couldn't init storage provider (RADOS)" << dendl;
+ return -EIO;
+ }
+
+ main.cond_init_apis();
+
+ mutex.lock();
+ init_timer.cancel_all_events();
+ init_timer.shutdown();
+ mutex.unlock();
+
+ main.init_ldap();
+ main.init_opslog();
+
+ init_async_signal_handler();
+ register_async_signal_handler(SIGUSR1, rgw::signal::handle_sigterm);
+
+ main.init_tracepoints();
+ main.init_frontends2(this /* rgwlib */);
+ main.init_notification_endpoints();
+ main.init_lua();
+
+ return 0;
+ } /* RGWLib::init() */
+
+ int RGWLib::stop()
+ {
+ derr << "shutting down" << dendl;
+
+ const auto finalize_async_signals = []() {
+ unregister_async_signal_handler(SIGUSR1, rgw::signal::handle_sigterm);
+ shutdown_async_signal_handler();
+ };
+
+ main.shutdown(finalize_async_signals);
+
+ return 0;
+ } /* RGWLib::stop() */
+
+ int RGWLibIO::set_uid(rgw::sal::Driver* driver, const rgw_user& uid)
+ {
+ const DoutPrefix dp(driver->ctx(), dout_subsys, "librgw: ");
+ std::unique_ptr<rgw::sal::User> user = driver->get_user(uid);
+ /* object exists, but policy is broken */
+ int ret = user->load_user(&dp, null_yield);
+ if (ret < 0) {
+ derr << "ERROR: failed reading user info: uid=" << uid << " ret="
+ << ret << dendl;
+ }
+ user_info = user->get_info();
+ return ret;
+ }
+
+ int RGWLibRequest::read_permissions(RGWOp* op, optional_yield y) {
+ /* bucket and object ops */
+ int ret =
+ rgw_build_bucket_policies(op, g_rgwlib->get_driver(), get_state(), y);
+ if (ret < 0) {
+ ldpp_dout(op, 10) << "read_permissions (bucket policy) on "
+ << get_state()->bucket << ":"
+ << get_state()->object
+ << " only_bucket=" << only_bucket()
+ << " ret=" << ret << dendl;
+ if (ret == -ENODATA)
+ ret = -EACCES;
+ } else if (! only_bucket()) {
+ /* object ops */
+ ret = rgw_build_object_policies(op, g_rgwlib->get_driver(), get_state(),
+ op->prefetch_data(), y);
+ if (ret < 0) {
+ ldpp_dout(op, 10) << "read_permissions (object policy) on"
+ << get_state()->bucket << ":"
+ << get_state()->object
+ << " ret=" << ret << dendl;
+ if (ret == -ENODATA)
+ ret = -EACCES;
+ }
+ }
+ return ret;
+ } /* RGWLibRequest::read_permissions */
+
+ int RGWHandler_Lib::authorize(const DoutPrefixProvider *dpp, optional_yield y)
+ {
+ /* TODO: handle
+ * 1. subusers
+ * 2. anonymous access
+ * 3. system access
+ * 4. ?
+ *
+ * Much or all of this depends on handling the cached authorization
+ * correctly (e.g., dealing with keystone) at mount time.
+ */
+ s->perm_mask = RGW_PERM_FULL_CONTROL;
+
+ // populate the owner info
+ s->owner.set_id(s->user->get_id());
+ s->owner.set_name(s->user->get_display_name());
+
+ return 0;
+ } /* RGWHandler_Lib::authorize */
+
+} /* namespace rgw */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 12:24:01 +0000