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509bd5d8b3
Enable retrieval of the number of maximum clients connected to all sockets combined, as well as the number of maximum clients waiting for authentication, in order to be successfully connected. These are the attributes configurable through libvirtd.conf, however, it could be handy to not only know values for these limits, but also the values for the current number of clients connected and number of clients currently waiting for authentication which are changing dynamically. This API does both, retrieves the limits as well as the current dynamic values. Signed-off-by: Erik Skultety <eskultet@redhat.com>
355 lines
11 KiB
C
355 lines
11 KiB
C
/*
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* admin_server.c: admin methods to manage daemons and clients
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*
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* Copyright (C) 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors: Erik Skultety <eskultet@redhat.com>
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* Martin Kletzander <mkletzan@redhat.com>
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*/
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#include <config.h>
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#include "admin_server.h"
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#include "datatypes.h"
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#include "viralloc.h"
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#include "virerror.h"
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#include "viridentity.h"
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#include "virlog.h"
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#include "virnetdaemon.h"
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#include "virnetserver.h"
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#include "virstring.h"
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#include "virthreadpool.h"
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#include "virtypedparam.h"
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#define VIR_FROM_THIS VIR_FROM_ADMIN
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VIR_LOG_INIT("daemon.admin_server");
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int
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adminConnectListServers(virNetDaemonPtr dmn,
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virNetServerPtr **servers,
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unsigned int flags)
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{
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int ret = -1;
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virNetServerPtr *srvs = NULL;
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virCheckFlags(0, -1);
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if ((ret = virNetDaemonGetServers(dmn, &srvs)) < 0)
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goto cleanup;
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if (servers) {
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*servers = srvs;
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srvs = NULL;
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}
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cleanup:
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if (ret > 0)
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virObjectListFreeCount(srvs, ret);
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return ret;
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}
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virNetServerPtr
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adminConnectLookupServer(virNetDaemonPtr dmn,
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const char *name,
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unsigned int flags)
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{
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virCheckFlags(flags, NULL);
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return virNetDaemonGetServer(dmn, name);
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}
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int
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adminServerGetThreadPoolParameters(virNetServerPtr srv,
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virTypedParameterPtr *params,
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int *nparams,
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unsigned int flags)
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{
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int ret = -1;
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int maxparams = 0;
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size_t minWorkers;
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size_t maxWorkers;
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size_t nWorkers;
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size_t freeWorkers;
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size_t nPrioWorkers;
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size_t jobQueueDepth;
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virTypedParameterPtr tmpparams = NULL;
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virCheckFlags(0, -1);
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if (virNetServerGetThreadPoolParameters(srv, &minWorkers, &maxWorkers,
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&nWorkers, &freeWorkers,
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&nPrioWorkers,
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&jobQueueDepth) < 0) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Unable to retrieve threadpool parameters"));
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goto cleanup;
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}
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_WORKERS_MIN,
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minWorkers) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_WORKERS_MAX,
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maxWorkers) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_WORKERS_CURRENT,
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nWorkers) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_WORKERS_FREE,
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freeWorkers) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_WORKERS_PRIORITY,
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nPrioWorkers) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams,
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&maxparams, VIR_THREADPOOL_JOB_QUEUE_DEPTH,
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jobQueueDepth) < 0)
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goto cleanup;
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*params = tmpparams;
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tmpparams = NULL;
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ret = 0;
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cleanup:
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virTypedParamsFree(tmpparams, *nparams);
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return ret;
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}
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int
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adminServerSetThreadPoolParameters(virNetServerPtr srv,
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virTypedParameterPtr params,
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int nparams,
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unsigned int flags)
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{
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long long int minWorkers = -1;
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long long int maxWorkers = -1;
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long long int prioWorkers = -1;
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virTypedParameterPtr param = NULL;
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virCheckFlags(0, -1);
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if (virTypedParamsValidate(params, nparams,
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VIR_THREADPOOL_WORKERS_MIN,
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VIR_TYPED_PARAM_UINT,
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VIR_THREADPOOL_WORKERS_MAX,
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VIR_TYPED_PARAM_UINT,
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VIR_THREADPOOL_WORKERS_PRIORITY,
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VIR_TYPED_PARAM_UINT,
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NULL) < 0)
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return -1;
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if ((param = virTypedParamsGet(params, nparams,
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VIR_THREADPOOL_WORKERS_MIN)))
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minWorkers = param->value.ui;
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if ((param = virTypedParamsGet(params, nparams,
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VIR_THREADPOOL_WORKERS_MAX)))
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maxWorkers = param->value.ui;
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if ((param = virTypedParamsGet(params, nparams,
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VIR_THREADPOOL_WORKERS_PRIORITY)))
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prioWorkers = param->value.ui;
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if (virNetServerSetThreadPoolParameters(srv, minWorkers,
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maxWorkers, prioWorkers) < 0)
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return -1;
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return 0;
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}
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int
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adminServerListClients(virNetServerPtr srv,
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virNetServerClientPtr **clients,
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unsigned int flags)
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{
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int ret = -1;
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virNetServerClientPtr *clts;
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virCheckFlags(0, -1);
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if ((ret = virNetServerGetClients(srv, &clts)) < 0)
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return -1;
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if (clients) {
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*clients = clts;
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clts = NULL;
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}
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virObjectListFreeCount(clts, ret);
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return ret;
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}
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virNetServerClientPtr
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adminServerLookupClient(virNetServerPtr srv,
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unsigned long long id,
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unsigned int flags)
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{
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virCheckFlags(0, NULL);
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return virNetServerGetClient(srv, id);
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}
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int
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adminClientGetInfo(virNetServerClientPtr client,
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virTypedParameterPtr *params,
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int *nparams,
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unsigned int flags)
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{
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int ret = -1;
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int maxparams = 0;
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bool readonly;
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const char *sock_addr = NULL;
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const char *attr = NULL;
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virTypedParameterPtr tmpparams = NULL;
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virIdentityPtr identity = NULL;
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virCheckFlags(0, -1);
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if (virNetServerClientGetInfo(client, &readonly,
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&sock_addr, &identity) < 0)
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goto cleanup;
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if (virTypedParamsAddBoolean(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_READONLY,
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readonly) < 0)
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goto cleanup;
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if (!virNetServerClientIsLocal(client)) {
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if (virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_SOCKET_ADDR,
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sock_addr) < 0)
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goto cleanup;
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if (virIdentityGetSASLUserName(identity, &attr) < 0 ||
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(attr &&
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virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_SASL_USER_NAME,
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attr) < 0))
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goto cleanup;
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if (virIdentityGetX509DName(identity, &attr) < 0 ||
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(attr &&
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virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_X509_DISTINGUISHED_NAME,
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attr) < 0))
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goto cleanup;
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} else {
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pid_t pid;
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uid_t uid;
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gid_t gid;
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if (virIdentityGetUNIXUserID(identity, &uid) < 0 ||
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virTypedParamsAddInt(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_UNIX_USER_ID, uid) < 0)
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goto cleanup;
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if (virIdentityGetUNIXUserName(identity, &attr) < 0 ||
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virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_UNIX_USER_NAME,
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attr) < 0)
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goto cleanup;
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if (virIdentityGetUNIXGroupID(identity, &gid) < 0 ||
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virTypedParamsAddInt(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_UNIX_GROUP_ID, gid) < 0)
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goto cleanup;
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if (virIdentityGetUNIXGroupName(identity, &attr) < 0 ||
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virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_UNIX_GROUP_NAME,
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attr) < 0)
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goto cleanup;
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if (virIdentityGetUNIXProcessID(identity, &pid) < 0 ||
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virTypedParamsAddInt(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_UNIX_PROCESS_ID, pid) < 0)
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goto cleanup;
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}
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if (virIdentityGetSELinuxContext(identity, &attr) < 0 ||
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(attr &&
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virTypedParamsAddString(&tmpparams, nparams, &maxparams,
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VIR_CLIENT_INFO_SELINUX_CONTEXT, attr) < 0))
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goto cleanup;
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*params = tmpparams;
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tmpparams = NULL;
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ret = 0;
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cleanup:
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virObjectUnref(identity);
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return ret;
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}
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int adminClientClose(virNetServerClientPtr client,
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unsigned int flags)
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{
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virCheckFlags(0, -1);
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virNetServerClientClose(client);
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return 0;
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}
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int
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adminServerGetClientLimits(virNetServerPtr srv,
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virTypedParameterPtr *params,
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int *nparams,
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unsigned int flags)
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{
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int ret = -1;
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int maxparams = 0;
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virTypedParameterPtr tmpparams = NULL;
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virCheckFlags(0, -1);
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if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
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VIR_SERVER_CLIENTS_MAX,
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virNetServerGetMaxClients(srv)) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
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VIR_SERVER_CLIENTS_CURRENT,
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virNetServerGetCurrentClients(srv)) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
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VIR_SERVER_CLIENTS_UNAUTH_MAX,
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virNetServerGetMaxUnauthClients(srv)) < 0)
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goto cleanup;
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if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
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VIR_SERVER_CLIENTS_UNAUTH_CURRENT,
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virNetServerGetCurrentUnauthClients(srv)) < 0)
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goto cleanup;
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*params = tmpparams;
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tmpparams = NULL;
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ret = 0;
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cleanup:
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virTypedParamsFree(tmpparams, *nparams);
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return ret;
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}
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