2026 lines
57 KiB
C++
2026 lines
57 KiB
C++
/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2020-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#include <maxscale/cppdefs.hh>
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#include "maxscale/config_runtime.h"
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#include <strings.h>
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#include <string>
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#include <sstream>
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#include <set>
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#include <iterator>
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#include <algorithm>
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#include <maxscale/atomic.h>
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#include <maxscale/jansson.hh>
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#include <maxscale/json_api.h>
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#include <maxscale/paths.h>
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#include <maxscale/platform.h>
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#include <maxscale/spinlock.h>
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#include <maxscale/users.h>
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#include "maxscale/config.h"
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#include "maxscale/monitor.h"
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#include "maxscale/modules.h"
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#include "maxscale/service.h"
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typedef std::set<std::string> StringSet;
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static SPINLOCK crt_lock = SPINLOCK_INIT;
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#define RUNTIME_ERRMSG_BUFSIZE 512
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thread_local char runtime_errmsg[RUNTIME_ERRMSG_BUFSIZE];
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/** Attributes need to be in the declaration */
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static void runtime_error(const char* fmt, ...) mxs_attribute((format (printf, 1, 2)));
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static void runtime_error(const char* fmt, ...)
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{
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va_list list;
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va_start(list, fmt);
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vsnprintf(runtime_errmsg, sizeof(runtime_errmsg), fmt, list);
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va_end(list);
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}
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static std::string runtime_get_error()
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{
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std::string rval(runtime_errmsg);
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runtime_errmsg[0] = '\0';
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return rval;
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}
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bool runtime_link_server(SERVER *server, const char *target)
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{
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spinlock_acquire(&crt_lock);
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bool rval = false;
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SERVICE *service = service_find(target);
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MXS_MONITOR *monitor = service ? NULL : monitor_find(target);
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if (service)
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{
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if (serviceAddBackend(service, server))
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{
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service_serialize(service);
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rval = true;
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}
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else
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{
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runtime_error("Service '%s' already uses server '%s'",
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service->name, server->unique_name);
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}
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}
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else if (monitor)
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{
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if (monitorAddServer(monitor, server))
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{
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monitor_serialize(monitor);
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rval = true;
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}
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else
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{
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runtime_error("Server '%s' is already monitored", server->unique_name);
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}
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}
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if (rval)
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{
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const char *type = service ? "service" : "monitor";
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MXS_NOTICE("Added server '%s' to %s '%s'", server->unique_name, type, target);
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}
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spinlock_release(&crt_lock);
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return rval;
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}
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bool runtime_unlink_server(SERVER *server, const char *target)
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{
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spinlock_acquire(&crt_lock);
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bool rval = false;
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SERVICE *service = service_find(target);
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MXS_MONITOR *monitor = service ? NULL : monitor_find(target);
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if (service || monitor)
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{
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rval = true;
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if (service)
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{
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serviceRemoveBackend(service, server);
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service_serialize(service);
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}
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else if (monitor)
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{
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monitorRemoveServer(monitor, server);
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monitor_serialize(monitor);
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}
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const char *type = service ? "service" : "monitor";
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MXS_NOTICE("Removed server '%s' from %s '%s'", server->unique_name, type, target);
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}
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spinlock_release(&crt_lock);
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return rval;
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}
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bool runtime_create_server(const char *name, const char *address, const char *port,
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const char *protocol, const char *authenticator,
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const char *authenticator_options)
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{
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spinlock_acquire(&crt_lock);
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bool rval = false;
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if (server_find_by_unique_name(name) == NULL)
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{
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// TODO: Get default values from the protocol module
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if (port == NULL)
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{
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port = "3306";
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}
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if (protocol == NULL)
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{
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protocol = "MySQLBackend";
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}
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if (authenticator == NULL && (authenticator = get_default_authenticator(protocol)) == NULL)
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{
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MXS_ERROR("No authenticator defined for server '%s' and no default "
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"authenticator for protocol '%s'.", name, protocol);
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spinlock_release(&crt_lock);
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return false;
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}
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/** First check if this service has been created before */
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SERVER *server = server_repurpose_destroyed(name, protocol, authenticator,
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authenticator_options,
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address, port);
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if (server)
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{
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MXS_DEBUG("Reusing server '%s'", name);
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}
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else
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{
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MXS_DEBUG("Creating server '%s'", name);
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server = server_alloc(name, address, atoi(port), protocol,
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authenticator, authenticator_options);
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}
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if (server && server_serialize(server))
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{
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rval = true;
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MXS_NOTICE("Created server '%s' at %s:%u", server->unique_name,
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server->name, server->port);
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}
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else
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{
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runtime_error("Failed to create server '%s', see error log for more details", name);
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}
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}
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else
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{
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runtime_error("Server '%s' already exists", name);
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}
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spinlock_release(&crt_lock);
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return rval;
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}
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bool runtime_destroy_server(SERVER *server)
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{
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spinlock_acquire(&crt_lock);
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bool rval = false;
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if (service_server_in_use(server) || monitor_server_in_use(server))
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{
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const char* err = "Cannot destroy server '%s' as it is used by at least "
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"one service or monitor";
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runtime_error(err, server->unique_name);
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MXS_ERROR(err, server->unique_name);
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}
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else
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{
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char filename[PATH_MAX];
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snprintf(filename, sizeof(filename), "%s/%s.cnf", get_config_persistdir(),
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server->unique_name);
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if (unlink(filename) == -1)
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{
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if (errno != ENOENT)
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{
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MXS_ERROR("Failed to remove persisted server configuration '%s': %d, %s",
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filename, errno, mxs_strerror(errno));
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}
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else
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{
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rval = true;
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MXS_WARNING("Server '%s' was not created at runtime. Remove the "
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"server manually from the correct configuration file.",
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server->unique_name);
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}
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}
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else
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{
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rval = true;
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}
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if (rval)
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{
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MXS_NOTICE("Destroyed server '%s' at %s:%u", server->unique_name,
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server->name, server->port);
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server->is_active = false;
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}
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}
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spinlock_release(&crt_lock);
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return rval;
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}
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static SSL_LISTENER* create_ssl(const char *name, const char *key, const char *cert,
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const char *ca, const char *version, const char *depth)
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{
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SSL_LISTENER *rval = NULL;
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CONFIG_CONTEXT *obj = config_context_create(name);
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if (obj)
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{
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if (config_add_param(obj, CN_SSL, CN_REQUIRED) &&
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config_add_param(obj, CN_SSL_KEY, key) &&
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config_add_param(obj, CN_SSL_CERT, cert) &&
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config_add_param(obj, CN_SSL_CA_CERT, ca) &&
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(!version || config_add_param(obj, CN_SSL_VERSION, version)) &&
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(!depth || config_add_param(obj, CN_SSL_CERT_VERIFY_DEPTH, depth)))
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{
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int err = 0;
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SSL_LISTENER *ssl = make_ssl_structure(obj, true, &err);
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if (err == 0 && ssl && listener_init_SSL(ssl) == 0)
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{
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rval = ssl;
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}
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}
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config_context_free(obj);
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}
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return rval;
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}
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bool runtime_enable_server_ssl(SERVER *server, const char *key, const char *cert,
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const char *ca, const char *version, const char *depth)
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{
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bool rval = false;
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if (key && cert && ca)
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{
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spinlock_acquire(&crt_lock);
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SSL_LISTENER *ssl = create_ssl(server->unique_name, key, cert, ca, version, depth);
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if (ssl)
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{
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/** TODO: Properly discard old SSL configurations.This could cause the
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* loss of a pointer if two update operations are done at the same time.*/
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ssl->next = server->server_ssl;
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/** Sync to prevent reads on partially initialized server_ssl */
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atomic_synchronize();
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server->server_ssl = ssl;
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if (server_serialize(server))
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{
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MXS_NOTICE("Enabled SSL for server '%s'", server->unique_name);
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rval = true;
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}
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}
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spinlock_release(&crt_lock);
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}
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return rval;
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}
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/**
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* @brief Convert a string value to a positive integer
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*
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* If the value is not a positive integer, an error is printed to @c dcb.
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*
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* @param value String value
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* @return 0 on error, otherwise a positive integer
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*/
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static long get_positive_int(const char *value)
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{
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char *endptr;
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long ival = strtol(value, &endptr, 10);
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if (*endptr == '\0' && ival > 0)
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{
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return ival;
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}
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return 0;
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}
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static inline bool is_valid_integer(const char* value)
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{
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char* endptr;
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return strtol(value, &endptr, 10) >= 0 && *value && *endptr == '\0';
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}
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bool runtime_alter_server(SERVER *server, const char *key, const char *value)
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{
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spinlock_acquire(&crt_lock);
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bool valid = false;
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if (strcmp(key, CN_ADDRESS) == 0)
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{
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valid = true;
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server_update_address(server, value);
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}
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else if (strcmp(key, CN_PORT) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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server_update_port(server, ival);
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}
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}
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else if (strcmp(key, CN_MONITORUSER) == 0)
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{
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valid = true;
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server_update_credentials(server, value, server->monpw);
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}
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else if (strcmp(key, CN_MONITORPW) == 0)
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{
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valid = true;
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server_update_credentials(server, server->monuser, value);
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}
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else if (strcmp(key, CN_PERSISTPOOLMAX) == 0)
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{
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if (is_valid_integer(value))
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{
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valid = true;
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server->persistpoolmax = atoi(value);
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}
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}
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else if (strcmp(key, CN_PERSISTMAXTIME) == 0)
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{
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if (is_valid_integer(value))
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{
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valid = true;
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server->persistmaxtime = atoi(value);
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}
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}
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else
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{
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if (!server_remove_parameter(server, key) && !value[0])
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{
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// Not a valid parameter
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}
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else if (value[0])
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{
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valid = true;
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server_add_parameter(server, key, value);
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/**
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* It's likely that this parameter is used as a weighting parameter.
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* We need to update the weights of services that use this.
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*/
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service_update_weights();
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}
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}
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if (valid)
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{
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if (server_serialize(server))
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{
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MXS_NOTICE("Updated server '%s': %s=%s", server->unique_name, key, value);
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}
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}
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else
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{
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runtime_error("Invalid server parameter: %s=%s", key, value);
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}
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spinlock_release(&crt_lock);
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return valid;
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}
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/**
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* @brief Add default parameters to a monitor
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*
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* @param monitor Monitor to modify
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*/
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static void add_monitor_defaults(MXS_MONITOR *monitor)
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{
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/** Inject the default module parameters in case we only deleted
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* a parameter */
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CONFIG_CONTEXT ctx = {};
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ctx.object = (char*)"";
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const MXS_MODULE *mod = get_module(monitor->module_name, MODULE_MONITOR);
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if (mod)
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{
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config_add_defaults(&ctx, mod->parameters);
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monitorAddParameters(monitor, ctx.parameters);
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config_parameter_free(ctx.parameters);
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}
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else
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{
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MXS_ERROR("Failed to load module '%s'. See previous error messages for more details.",
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monitor->module_name);
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}
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}
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bool runtime_alter_monitor(MXS_MONITOR *monitor, const char *key, const char *value)
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{
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spinlock_acquire(&crt_lock);
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bool valid = false;
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if (strcmp(key, CN_USER) == 0)
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{
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valid = true;
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monitorAddUser(monitor, value, monitor->password);
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}
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else if (strcmp(key, CN_PASSWORD) == 0)
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{
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valid = true;
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monitorAddUser(monitor, monitor->user, value);
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}
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else if (strcmp(key, CN_MONITOR_INTERVAL) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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monitorSetInterval(monitor, ival);
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}
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}
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else if (strcmp(key, CN_BACKEND_CONNECT_TIMEOUT) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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monitorSetNetworkTimeout(monitor, MONITOR_CONNECT_TIMEOUT, ival);
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}
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}
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else if (strcmp(key, CN_BACKEND_WRITE_TIMEOUT) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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monitorSetNetworkTimeout(monitor, MONITOR_WRITE_TIMEOUT, ival);
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}
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}
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else if (strcmp(key, CN_BACKEND_READ_TIMEOUT) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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monitorSetNetworkTimeout(monitor, MONITOR_READ_TIMEOUT, ival);
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}
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}
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else if (strcmp(key, CN_BACKEND_CONNECT_ATTEMPTS) == 0)
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{
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long ival = get_positive_int(value);
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if (ival)
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{
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valid = true;
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monitorSetNetworkTimeout(monitor, MONITOR_CONNECT_ATTEMPTS, ival);
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}
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}
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else
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{
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/** We're modifying module specific parameters and we need to stop the monitor */
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monitorStop(monitor);
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if (monitorRemoveParameter(monitor, key) || value[0])
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{
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/** Either we're removing an existing parameter or adding a new one */
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valid = true;
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if (value[0])
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{
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MXS_CONFIG_PARAMETER p = {};
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p.name = const_cast<char*>(key);
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p.value = const_cast<char*>(value);
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monitorAddParameters(monitor, &p);
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}
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}
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monitorStart(monitor, monitor->parameters);
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}
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if (valid)
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{
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monitor_serialize(monitor);
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MXS_NOTICE("Updated monitor '%s': %s=%s", monitor->name, key, value);
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}
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else
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{
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runtime_error("Invalid monitor parameter: %s", key);
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}
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spinlock_release(&crt_lock);
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return valid;
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}
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bool runtime_alter_service(SERVICE *service, const char* zKey, const char* zValue)
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{
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std::string key(zKey);
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std::string value(zValue);
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bool valid = false;
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spinlock_acquire(&crt_lock);
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if (key == CN_USER)
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{
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valid = true;
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serviceSetUser(service, value.c_str(), service->credentials.authdata);
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}
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else if (key == CN_PASSWORD)
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{
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valid = true;
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serviceSetUser(service, service->credentials.name, value.c_str());
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}
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else if (key == CN_ENABLE_ROOT_USER)
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{
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valid = true;
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serviceEnableRootUser(service, config_truth_value(value.c_str()));
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}
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else if (key == CN_MAX_RETRY_INTERVAL)
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{
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long i = get_positive_int(zValue);
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if (i)
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{
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valid = true;
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service_set_retry_interval(service, i);
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}
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}
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else if (key == CN_MAX_CONNECTIONS)
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{
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long i = get_positive_int(zValue);
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if (i)
|
|
{
|
|
valid = true;
|
|
// TODO: Once connection queues are implemented, use correct values
|
|
serviceSetConnectionLimits(service, i, 0, 0);
|
|
}
|
|
}
|
|
else if (key == CN_CONNECTION_TIMEOUT)
|
|
{
|
|
long i = get_positive_int(zValue);
|
|
if (i)
|
|
{
|
|
valid = true;
|
|
serviceSetTimeout(service, i);
|
|
}
|
|
}
|
|
else if (key == CN_AUTH_ALL_SERVERS)
|
|
{
|
|
valid = true;
|
|
serviceAuthAllServers(service, config_truth_value(value.c_str()));
|
|
}
|
|
else if (key == CN_STRIP_DB_ESC)
|
|
{
|
|
valid = true;
|
|
serviceStripDbEsc(service, config_truth_value(value.c_str()));
|
|
}
|
|
else if (key == CN_LOCALHOST_MATCH_WILDCARD_HOST)
|
|
{
|
|
valid = true;
|
|
serviceEnableLocalhostMatchWildcardHost(service, config_truth_value(value.c_str()));
|
|
}
|
|
else if (key == CN_VERSION_STRING)
|
|
{
|
|
valid = true;
|
|
serviceSetVersionString(service, value.c_str());
|
|
}
|
|
else if (key == CN_WEIGHTBY)
|
|
{
|
|
valid = true;
|
|
serviceWeightBy(service, value.c_str());
|
|
}
|
|
else if (key == CN_LOG_AUTH_WARNINGS)
|
|
{
|
|
valid = true;
|
|
// TODO: Move this inside the service source
|
|
service->log_auth_warnings = config_truth_value(value.c_str());
|
|
}
|
|
else if (key == CN_RETRY_ON_FAILURE)
|
|
{
|
|
valid = true;
|
|
serviceSetRetryOnFailure(service, value.c_str());
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid service parameter: %s=%s", key.c_str(), zValue);
|
|
MXS_ERROR("Unknown parameter for service '%s': %s=%s",
|
|
service->name, key.c_str(), value.c_str());
|
|
}
|
|
|
|
if (valid)
|
|
{
|
|
service_serialize(service);
|
|
MXS_NOTICE("Updated service '%s': %s=%s", service->name, key.c_str(), value.c_str());
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
|
|
return valid;
|
|
}
|
|
|
|
bool runtime_alter_maxscale(const char* name, const char* value)
|
|
{
|
|
MXS_CONFIG& cnf = *config_get_global_options();
|
|
std::string key = name;
|
|
bool rval = false;
|
|
|
|
spinlock_acquire(&crt_lock);
|
|
|
|
if (key == CN_AUTH_CONNECT_TIMEOUT)
|
|
{
|
|
int intval = get_positive_int(value);
|
|
if (intval)
|
|
{
|
|
MXS_NOTICE("Updated '%s' from %d to %d", CN_AUTH_CONNECT_TIMEOUT,
|
|
cnf.auth_conn_timeout, intval);
|
|
cnf.auth_conn_timeout = intval;
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid timeout value for '%s': %s", CN_AUTH_CONNECT_TIMEOUT, value);
|
|
}
|
|
}
|
|
else if (key == CN_AUTH_READ_TIMEOUT)
|
|
{
|
|
int intval = get_positive_int(value);
|
|
if (intval)
|
|
{
|
|
MXS_NOTICE("Updated '%s' from %d to %d", CN_AUTH_READ_TIMEOUT,
|
|
cnf.auth_read_timeout, intval);
|
|
cnf.auth_read_timeout = intval;
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid timeout value for '%s': %s", CN_AUTH_READ_TIMEOUT, value);
|
|
}
|
|
}
|
|
else if (key == CN_AUTH_WRITE_TIMEOUT)
|
|
{
|
|
int intval = get_positive_int(value);
|
|
if (intval)
|
|
{
|
|
MXS_NOTICE("Updated '%s' from %d to %d", CN_AUTH_WRITE_TIMEOUT,
|
|
cnf.auth_write_timeout, intval);
|
|
cnf.auth_write_timeout = intval;
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid timeout value for '%s': %s", CN_AUTH_WRITE_TIMEOUT, value);
|
|
}
|
|
}
|
|
else if (key == CN_ADMIN_AUTH)
|
|
{
|
|
int boolval = config_truth_value(value);
|
|
|
|
if (boolval != -1)
|
|
{
|
|
MXS_NOTICE("Updated '%s' from '%s' to '%s'", CN_ADMIN_AUTH,
|
|
cnf.admin_auth ? "true" : "false",
|
|
boolval ? "true" : "false");
|
|
cnf.admin_auth = boolval;
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid boolean value for '%s': %s", CN_ADMIN_AUTH, value);
|
|
}
|
|
}
|
|
else if (key == CN_ADMIN_LOG_AUTH_FAILURES)
|
|
{
|
|
int boolval = config_truth_value(value);
|
|
|
|
if (boolval != -1)
|
|
{
|
|
MXS_NOTICE("Updated '%s' from '%s' to '%s'", CN_ADMIN_LOG_AUTH_FAILURES,
|
|
cnf.admin_log_auth_failures ? "true" : "false",
|
|
boolval ? "true" : "false");
|
|
cnf.admin_log_auth_failures = boolval;
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid boolean value for '%s': %s", CN_ADMIN_LOG_AUTH_FAILURES, value);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Unknown global parameter: %s=%s", name, value);
|
|
}
|
|
|
|
if (rval)
|
|
{
|
|
config_global_serialize();
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_create_listener(SERVICE *service, const char *name, const char *addr,
|
|
const char *port, const char *proto, const char *auth,
|
|
const char *auth_opt, const char *ssl_key,
|
|
const char *ssl_cert, const char *ssl_ca,
|
|
const char *ssl_version, const char *ssl_depth)
|
|
{
|
|
|
|
if (addr == NULL || strcasecmp(addr, CN_DEFAULT) == 0)
|
|
{
|
|
addr = "::";
|
|
}
|
|
if (port == NULL || strcasecmp(port, CN_DEFAULT) == 0)
|
|
{
|
|
port = "3306";
|
|
}
|
|
if (proto == NULL || strcasecmp(proto, CN_DEFAULT) == 0)
|
|
{
|
|
proto = "MySQLClient";
|
|
}
|
|
|
|
if (auth && strcasecmp(auth, CN_DEFAULT) == 0)
|
|
{
|
|
/** Set auth to NULL so the protocol default authenticator is used */
|
|
auth = NULL;
|
|
}
|
|
|
|
if (auth_opt && strcasecmp(auth_opt, CN_DEFAULT) == 0)
|
|
{
|
|
/** Don't pass options to the authenticator */
|
|
auth_opt = NULL;
|
|
}
|
|
|
|
unsigned short u_port = atoi(port);
|
|
bool rval = false;
|
|
|
|
spinlock_acquire(&crt_lock);
|
|
|
|
if (!serviceHasListener(service, name, proto, addr, u_port))
|
|
{
|
|
SSL_LISTENER *ssl = NULL;
|
|
|
|
if (ssl_key && ssl_cert && ssl_ca &&
|
|
(ssl = create_ssl(name, ssl_key, ssl_cert, ssl_ca, ssl_version, ssl_depth)) == NULL)
|
|
{
|
|
MXS_ERROR("SSL initialization for listener '%s' failed.", name);
|
|
runtime_error("SSL initialization for listener '%s' failed.", name);
|
|
}
|
|
else
|
|
{
|
|
const char *print_addr = addr ? addr : "::";
|
|
SERV_LISTENER *listener = serviceCreateListener(service, name, proto, addr,
|
|
u_port, auth, auth_opt, ssl);
|
|
|
|
if (listener && listener_serialize(listener))
|
|
{
|
|
MXS_NOTICE("Created %slistener '%s' at %s:%s for service '%s'",
|
|
ssl ? "TLS encrypted " : "",
|
|
name, print_addr, port, service->name);
|
|
if (serviceLaunchListener(service, listener))
|
|
{
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Listener '%s' was created but failed to start it.", name);
|
|
runtime_error("Listener '%s' was created but failed to start it.", name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Failed to create listener '%s' at %s:%s.", name, print_addr, port);
|
|
runtime_error("Failed to create listener '%s' at %s:%s.", name, print_addr, port);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Listener '%s' already exists", name);
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_destroy_listener(SERVICE *service, const char *name)
|
|
{
|
|
bool rval = false;
|
|
char filename[PATH_MAX];
|
|
snprintf(filename, sizeof(filename), "%s/%s.cnf", get_config_persistdir(), name);
|
|
|
|
spinlock_acquire(&crt_lock);
|
|
|
|
if (unlink(filename) == -1)
|
|
{
|
|
if (errno != ENOENT)
|
|
{
|
|
MXS_ERROR("Failed to remove persisted listener configuration '%s': %d, %s",
|
|
filename, errno, mxs_strerror(errno));
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Listener '%s' was not created at runtime. Remove the listener "
|
|
"manually from the correct configuration file.", name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rval = true;
|
|
}
|
|
|
|
if (rval)
|
|
{
|
|
rval = serviceStopListener(service, name);
|
|
|
|
if (rval)
|
|
{
|
|
MXS_NOTICE("Destroyed listener '%s' for service '%s'. The listener "
|
|
"will be removed after the next restart of MaxScale.",
|
|
name, service->name);
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Failed to destroy listener '%s' for service '%s'", name, service->name);
|
|
runtime_error("Failed to destroy listener '%s' for service '%s'", name, service->name);
|
|
}
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_create_monitor(const char *name, const char *module)
|
|
{
|
|
spinlock_acquire(&crt_lock);
|
|
bool rval = false;
|
|
|
|
if (monitor_find(name) == NULL)
|
|
{
|
|
|
|
MXS_MONITOR *monitor = monitor_repurpose_destroyed(name, module);
|
|
|
|
if (monitor)
|
|
{
|
|
MXS_DEBUG("Repurposed monitor '%s'", name);
|
|
}
|
|
else if ((monitor = monitor_alloc(name, module)) == NULL)
|
|
{
|
|
runtime_error("Could not create monitor '%s' with module '%s'", name, module);
|
|
}
|
|
|
|
if (monitor)
|
|
{
|
|
add_monitor_defaults(monitor);
|
|
|
|
if (monitor_serialize(monitor))
|
|
{
|
|
MXS_NOTICE("Created monitor '%s'", name);
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Failed to serialize monitor '%s'", name);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Can't create monitor '%s', it already exists", name);
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_destroy_monitor(MXS_MONITOR *monitor)
|
|
{
|
|
bool rval = false;
|
|
char filename[PATH_MAX];
|
|
snprintf(filename, sizeof(filename), "%s/%s.cnf", get_config_persistdir(), monitor->name);
|
|
|
|
spinlock_acquire(&crt_lock);
|
|
|
|
if (unlink(filename) == -1 && errno != ENOENT)
|
|
{
|
|
MXS_ERROR("Failed to remove persisted monitor configuration '%s': %d, %s",
|
|
filename, errno, mxs_strerror(errno));
|
|
}
|
|
else
|
|
{
|
|
rval = true;
|
|
}
|
|
|
|
if (rval)
|
|
{
|
|
monitorStop(monitor);
|
|
|
|
while (monitor->databases)
|
|
{
|
|
monitorRemoveServer(monitor, monitor->databases->server);
|
|
}
|
|
monitorDestroy(monitor);
|
|
MXS_NOTICE("Destroyed monitor '%s'", monitor->name);
|
|
}
|
|
|
|
spinlock_release(&crt_lock);
|
|
return rval;
|
|
}
|
|
|
|
static bool extract_relations(json_t* json, StringSet& relations,
|
|
const char** relation_types,
|
|
bool (*relation_check)(const std::string&, const std::string&))
|
|
{
|
|
bool rval = true;
|
|
|
|
for (int i = 0; relation_types[i]; i++)
|
|
{
|
|
json_t* arr = mxs_json_pointer(json, relation_types[i]);
|
|
|
|
if (arr && json_is_array(arr))
|
|
{
|
|
size_t size = json_array_size(arr);
|
|
|
|
for (size_t j = 0; j < size; j++)
|
|
{
|
|
json_t* obj = json_array_get(arr, j);
|
|
json_t* id = json_object_get(obj, CN_ID);
|
|
json_t* type = mxs_json_pointer(obj, CN_TYPE);
|
|
|
|
if (id && json_is_string(id) &&
|
|
type && json_is_string(type))
|
|
{
|
|
std::string id_value = json_string_value(id);
|
|
std::string type_value = json_string_value(type);
|
|
|
|
if (relation_check(type_value, id_value))
|
|
{
|
|
relations.insert(id_value);
|
|
}
|
|
else
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static inline const char* get_string_or_null(json_t* json, const char* path)
|
|
{
|
|
const char* rval = NULL;
|
|
json_t* value = mxs_json_pointer(json, path);
|
|
|
|
if (value && json_is_string(value))
|
|
{
|
|
rval = json_string_value(value);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
static inline bool is_string_or_null(json_t* json, const char* path)
|
|
{
|
|
bool rval = true;
|
|
json_t* value = mxs_json_pointer(json, path);
|
|
|
|
if (value && !json_is_string(value))
|
|
{
|
|
runtime_error("Parameter '%s' is not a string", path);
|
|
rval = false;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static inline bool is_bool_or_null(json_t* json, const char* path)
|
|
{
|
|
bool rval = true;
|
|
json_t* value = mxs_json_pointer(json, path);
|
|
|
|
if (value && !json_is_boolean(value))
|
|
{
|
|
runtime_error("Parameter '%s' is not a boolean", path);
|
|
rval = false;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static inline bool is_count_or_null(json_t* json, const char* path)
|
|
{
|
|
bool rval = true;
|
|
json_t* value = mxs_json_pointer(json, path);
|
|
|
|
if (value)
|
|
{
|
|
if (!json_is_integer(value))
|
|
{
|
|
runtime_error("Parameter '%s' is not an integer", path);
|
|
rval = false;
|
|
}
|
|
else if (json_integer_value(value) <= 0)
|
|
{
|
|
runtime_error("Parameter '%s' is not a positive integer", path);
|
|
rval = false;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
/** Check that the body at least defies a data member */
|
|
static bool is_valid_resource_body(json_t* json)
|
|
{
|
|
bool rval = true;
|
|
|
|
if (mxs_json_pointer(json, MXS_JSON_PTR_DATA) == NULL)
|
|
{
|
|
runtime_error("No '%s' field defined", MXS_JSON_PTR_DATA);
|
|
rval = false;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool server_contains_required_fields(json_t* json)
|
|
{
|
|
json_t* id = mxs_json_pointer(json, MXS_JSON_PTR_ID);
|
|
json_t* port = mxs_json_pointer(json, MXS_JSON_PTR_PARAM_PORT);
|
|
json_t* address = mxs_json_pointer(json, MXS_JSON_PTR_PARAM_ADDRESS);
|
|
bool rval = false;
|
|
|
|
if (!id)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!json_is_string(id))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!address)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_PARAM_ADDRESS);
|
|
}
|
|
else if (!json_is_string(address))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_PARAM_ADDRESS);
|
|
}
|
|
else if (!port)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_PARAM_PORT);
|
|
}
|
|
else if (!json_is_integer(port))
|
|
{
|
|
runtime_error("The '%s' field is not an integer", MXS_JSON_PTR_PARAM_PORT);
|
|
}
|
|
else
|
|
{
|
|
rval = true;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
const char* server_relation_types[] =
|
|
{
|
|
MXS_JSON_PTR_RELATIONSHIPS_SERVICES,
|
|
MXS_JSON_PTR_RELATIONSHIPS_MONITORS,
|
|
NULL
|
|
};
|
|
|
|
static bool server_relation_is_valid(const std::string& type, const std::string& value)
|
|
{
|
|
return (type == CN_SERVICES && service_find(value.c_str())) ||
|
|
(type == CN_MONITORS && monitor_find(value.c_str()));
|
|
}
|
|
|
|
static bool unlink_server_from_objects(SERVER* server, StringSet& relations)
|
|
{
|
|
bool rval = true;
|
|
|
|
for (StringSet::iterator it = relations.begin(); it != relations.end(); it++)
|
|
{
|
|
if (!runtime_unlink_server(server, it->c_str()))
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool link_server_to_objects(SERVER* server, StringSet& relations)
|
|
{
|
|
bool rval = true;
|
|
|
|
for (StringSet::iterator it = relations.begin(); it != relations.end(); it++)
|
|
{
|
|
if (!runtime_link_server(server, it->c_str()))
|
|
{
|
|
unlink_server_from_objects(server, relations);
|
|
rval = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static std::string json_int_to_string(json_t* json)
|
|
{
|
|
char str[25]; // Enough to store any 64-bit integer value
|
|
int64_t i = json_integer_value(json);
|
|
snprintf(str, sizeof(str), "%ld", i);
|
|
return std::string(str);
|
|
}
|
|
|
|
static inline bool have_ssl_json(json_t* params)
|
|
{
|
|
return mxs_json_pointer(params, CN_SSL_KEY) ||
|
|
mxs_json_pointer(params, CN_SSL_CERT) ||
|
|
mxs_json_pointer(params, CN_SSL_CA_CERT) ||
|
|
mxs_json_pointer(params, CN_SSL_VERSION) ||
|
|
mxs_json_pointer(params, CN_SSL_CERT_VERIFY_DEPTH);
|
|
}
|
|
|
|
static bool validate_ssl_json(json_t* params)
|
|
{
|
|
bool rval = true;
|
|
|
|
if (is_string_or_null(params, CN_SSL_KEY) &&
|
|
is_string_or_null(params, CN_SSL_CERT) &&
|
|
is_string_or_null(params, CN_SSL_CA_CERT) &&
|
|
is_string_or_null(params, CN_SSL_VERSION) &&
|
|
is_count_or_null(params, CN_SSL_CERT_VERIFY_DEPTH))
|
|
{
|
|
if (!mxs_json_pointer(params, CN_SSL_KEY) ||
|
|
!mxs_json_pointer(params, CN_SSL_CERT) ||
|
|
!mxs_json_pointer(params, CN_SSL_CA_CERT))
|
|
{
|
|
runtime_error("SSL configuration requires '%s', '%s' and '%s' parameters",
|
|
CN_SSL_KEY, CN_SSL_CERT, CN_SSL_CA_CERT);
|
|
rval = false;
|
|
}
|
|
|
|
json_t* ssl_version = mxs_json_pointer(params, CN_SSL_VERSION);
|
|
const char* ssl_version_str = ssl_version ? json_string_value(ssl_version) : NULL;
|
|
|
|
if (ssl_version_str && string_to_ssl_method_type(ssl_version_str) == SERVICE_SSL_UNKNOWN)
|
|
{
|
|
runtime_error("Invalid value for '%s': %s", CN_SSL_VERSION, ssl_version_str);
|
|
rval = false;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool process_ssl_parameters(SERVER* server, json_t* params)
|
|
{
|
|
ss_dassert(server->server_ssl == NULL);
|
|
bool rval = true;
|
|
|
|
if (have_ssl_json(params))
|
|
{
|
|
if (validate_ssl_json(params))
|
|
{
|
|
char buf[20]; // Enough to hold the string form of the ssl_cert_verify_depth
|
|
const char* key = json_string_value(mxs_json_pointer(params, CN_SSL_KEY));
|
|
const char* cert = json_string_value(mxs_json_pointer(params, CN_SSL_CERT));
|
|
const char* ca = json_string_value(mxs_json_pointer(params, CN_SSL_CA_CERT));
|
|
const char* version = json_string_value(mxs_json_pointer(params, CN_SSL_VERSION));
|
|
const char* depth = NULL;
|
|
json_t* depth_json = mxs_json_pointer(params, CN_SSL_CERT_VERIFY_DEPTH);
|
|
|
|
if (depth_json)
|
|
{
|
|
snprintf(buf, sizeof(buf), "%lld", json_integer_value(depth_json));
|
|
depth = buf;
|
|
}
|
|
|
|
if (!runtime_enable_server_ssl(server, key, cert, ca, version, depth))
|
|
{
|
|
runtime_error("Failed to initialize SSL for server '%s'. See "
|
|
"error log for more details.", server->unique_name);
|
|
rval = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
SERVER* runtime_create_server_from_json(json_t* json)
|
|
{
|
|
SERVER* rval = NULL;
|
|
|
|
if (is_valid_resource_body(json) &&
|
|
server_contains_required_fields(json))
|
|
{
|
|
const char* name = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_ID));
|
|
const char* address = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_PARAM_ADDRESS));
|
|
|
|
/** The port needs to be in string format */
|
|
std::string port = json_int_to_string(mxs_json_pointer(json, MXS_JSON_PTR_PARAM_PORT));
|
|
|
|
/** Optional parameters */
|
|
const char* protocol = get_string_or_null(json, MXS_JSON_PTR_PARAM_PROTOCOL);
|
|
const char* authenticator = get_string_or_null(json, MXS_JSON_PTR_PARAM_AUTHENTICATOR);
|
|
const char* authenticator_options = get_string_or_null(json, MXS_JSON_PTR_PARAM_AUTHENTICATOR_OPTIONS);
|
|
|
|
StringSet relations;
|
|
|
|
if (extract_relations(json, relations, server_relation_types, server_relation_is_valid))
|
|
{
|
|
if (runtime_create_server(name, address, port.c_str(), protocol, authenticator, authenticator_options))
|
|
{
|
|
rval = server_find_by_unique_name(name);
|
|
ss_dassert(rval);
|
|
json_t* param = mxs_json_pointer(json, MXS_JSON_PTR_PARAMETERS);
|
|
|
|
if (!process_ssl_parameters(rval, param) ||
|
|
!link_server_to_objects(rval, relations))
|
|
{
|
|
runtime_destroy_server(rval);
|
|
rval = NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid relationships in request JSON");
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool server_to_object_relations(SERVER* server, json_t* old_json, json_t* new_json)
|
|
{
|
|
if (mxs_json_pointer(new_json, MXS_JSON_PTR_RELATIONSHIPS) == NULL)
|
|
{
|
|
/** No change to relationships */
|
|
return true;
|
|
}
|
|
|
|
bool rval = false;
|
|
StringSet old_relations;
|
|
StringSet new_relations;
|
|
|
|
if (extract_relations(old_json, old_relations, server_relation_types, server_relation_is_valid) &&
|
|
extract_relations(new_json, new_relations, server_relation_types, server_relation_is_valid))
|
|
{
|
|
StringSet removed_relations;
|
|
StringSet added_relations;
|
|
|
|
std::set_difference(old_relations.begin(), old_relations.end(),
|
|
new_relations.begin(), new_relations.end(),
|
|
std::inserter(removed_relations, removed_relations.begin()));
|
|
|
|
std::set_difference(new_relations.begin(), new_relations.end(),
|
|
old_relations.begin(), old_relations.end(),
|
|
std::inserter(added_relations, added_relations.begin()));
|
|
|
|
if (unlink_server_from_objects(server, removed_relations) &&
|
|
link_server_to_objects(server, added_relations))
|
|
{
|
|
rval = true;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_alter_server_from_json(SERVER* server, json_t* new_json)
|
|
{
|
|
bool rval = false;
|
|
mxs::Closer<json_t*> old_json(server_to_json(server, ""));
|
|
ss_dassert(old_json.get());
|
|
|
|
if (is_valid_resource_body(new_json) &&
|
|
server_to_object_relations(server, old_json.get(), new_json))
|
|
{
|
|
rval = true;
|
|
json_t* parameters = mxs_json_pointer(new_json, MXS_JSON_PTR_PARAMETERS);
|
|
json_t* old_parameters = mxs_json_pointer(old_json.get(), MXS_JSON_PTR_PARAMETERS);
|
|
|
|
ss_dassert(old_parameters);
|
|
|
|
if (parameters)
|
|
{
|
|
const char* key;
|
|
json_t* value;
|
|
|
|
json_object_foreach(parameters, key, value)
|
|
{
|
|
json_t* new_val = json_object_get(parameters, key);
|
|
json_t* old_val = json_object_get(old_parameters, key);
|
|
|
|
if (old_val && new_val && mxs::json_to_string(new_val) == mxs::json_to_string(old_val))
|
|
{
|
|
/** No change in values */
|
|
}
|
|
else if (!runtime_alter_server(server, key, mxs::json_to_string(value).c_str()))
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
const char* object_relation_types[] =
|
|
{
|
|
MXS_JSON_PTR_RELATIONSHIPS_SERVERS,
|
|
NULL
|
|
};
|
|
|
|
static bool object_relation_is_valid(const std::string& type, const std::string& value)
|
|
{
|
|
return type == CN_SERVERS && server_find_by_unique_name(value.c_str());
|
|
}
|
|
|
|
/**
|
|
* @brief Do a coarse validation of the monitor JSON
|
|
*
|
|
* @param json JSON to validate
|
|
*
|
|
* @return True of the JSON is valid
|
|
*/
|
|
static bool validate_monitor_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
json_t* value;
|
|
|
|
if (is_valid_resource_body(json))
|
|
{
|
|
if (!(value = mxs_json_pointer(json, MXS_JSON_PTR_ID)))
|
|
{
|
|
runtime_error("Value not found: '%s'", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!json_is_string(value))
|
|
{
|
|
runtime_error("Value '%s' is not a string", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!(value = mxs_json_pointer(json, MXS_JSON_PTR_MODULE)))
|
|
{
|
|
runtime_error("Invalid value for '%s'", MXS_JSON_PTR_MODULE);
|
|
}
|
|
else if (!json_is_string(value))
|
|
{
|
|
runtime_error("Value '%s' is not a string", MXS_JSON_PTR_MODULE);
|
|
}
|
|
else
|
|
{
|
|
StringSet relations;
|
|
if (extract_relations(json, relations, object_relation_types, object_relation_is_valid))
|
|
{
|
|
rval = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool unlink_object_from_servers(const char* target, StringSet& relations)
|
|
{
|
|
bool rval = true;
|
|
|
|
for (StringSet::iterator it = relations.begin(); it != relations.end(); it++)
|
|
{
|
|
SERVER* server = server_find_by_unique_name(it->c_str());
|
|
|
|
if (!server || !runtime_unlink_server(server, target))
|
|
{
|
|
rval = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool link_object_to_servers(const char* target, StringSet& relations)
|
|
{
|
|
bool rval = true;
|
|
|
|
for (StringSet::iterator it = relations.begin(); it != relations.end(); it++)
|
|
{
|
|
SERVER* server = server_find_by_unique_name(it->c_str());
|
|
|
|
if (!server || !runtime_link_server(server, target))
|
|
{
|
|
unlink_server_from_objects(server, relations);
|
|
rval = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
MXS_MONITOR* runtime_create_monitor_from_json(json_t* json)
|
|
{
|
|
MXS_MONITOR* rval = NULL;
|
|
|
|
if (validate_monitor_json(json))
|
|
{
|
|
const char* name = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_ID));
|
|
const char* module = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_MODULE));
|
|
|
|
if (runtime_create_monitor(name, module))
|
|
{
|
|
rval = monitor_find(name);
|
|
ss_dassert(rval);
|
|
|
|
if (!runtime_alter_monitor_from_json(rval, json))
|
|
{
|
|
runtime_destroy_monitor(rval);
|
|
rval = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool object_to_server_relations(const char* target, json_t* old_json, json_t* new_json)
|
|
{
|
|
if (mxs_json_pointer(new_json, MXS_JSON_PTR_RELATIONSHIPS) == NULL)
|
|
{
|
|
/** No change to relationships */
|
|
return true;
|
|
}
|
|
|
|
bool rval = false;
|
|
StringSet old_relations;
|
|
StringSet new_relations;
|
|
|
|
if (extract_relations(old_json, old_relations, object_relation_types, object_relation_is_valid) &&
|
|
extract_relations(new_json, new_relations, object_relation_types, object_relation_is_valid))
|
|
{
|
|
StringSet removed_relations;
|
|
StringSet added_relations;
|
|
|
|
std::set_difference(old_relations.begin(), old_relations.end(),
|
|
new_relations.begin(), new_relations.end(),
|
|
std::inserter(removed_relations, removed_relations.begin()));
|
|
|
|
std::set_difference(new_relations.begin(), new_relations.end(),
|
|
old_relations.begin(), old_relations.end(),
|
|
std::inserter(added_relations, added_relations.begin()));
|
|
|
|
if (unlink_object_from_servers(target, removed_relations) &&
|
|
link_object_to_servers(target, added_relations))
|
|
{
|
|
rval = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid object relations for '%s'", target);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_alter_monitor_from_json(MXS_MONITOR* monitor, json_t* new_json)
|
|
{
|
|
bool rval = false;
|
|
mxs::Closer<json_t*> old_json(monitor_to_json(monitor, ""));
|
|
ss_dassert(old_json.get());
|
|
|
|
if (is_valid_resource_body(new_json) &&
|
|
object_to_server_relations(monitor->name, old_json.get(), new_json))
|
|
{
|
|
rval = true;
|
|
bool changed = false;
|
|
json_t* parameters = mxs_json_pointer(new_json, MXS_JSON_PTR_PARAMETERS);
|
|
json_t* old_parameters = mxs_json_pointer(old_json.get(), MXS_JSON_PTR_PARAMETERS);
|
|
|
|
ss_dassert(old_parameters);
|
|
|
|
if (parameters)
|
|
{
|
|
const char* key;
|
|
json_t* value;
|
|
|
|
json_object_foreach(parameters, key, value)
|
|
{
|
|
json_t* new_val = json_object_get(parameters, key);
|
|
json_t* old_val = json_object_get(old_parameters, key);
|
|
|
|
if (old_val && new_val && mxs::json_to_string(new_val) == mxs::json_to_string(old_val))
|
|
{
|
|
/** No change in values */
|
|
}
|
|
else if (runtime_alter_monitor(monitor, key, mxs::json_to_string(value).c_str()))
|
|
{
|
|
changed = true;
|
|
}
|
|
else
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (changed)
|
|
{
|
|
/** A configuration change was made, restart the monitor */
|
|
monitorStop(monitor);
|
|
monitorStart(monitor, monitor->parameters);
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the service parameter can be altered at runtime
|
|
*
|
|
* @param key Parameter name
|
|
* @return True if the parameter can be altered
|
|
*/
|
|
static bool is_dynamic_param(const std::string& key)
|
|
{
|
|
return key != CN_TYPE &&
|
|
key != CN_ROUTER &&
|
|
key != CN_ROUTER_OPTIONS &&
|
|
key != CN_SERVERS;
|
|
}
|
|
|
|
bool runtime_alter_service_from_json(SERVICE* service, json_t* new_json)
|
|
{
|
|
bool rval = false;
|
|
mxs::Closer<json_t*> old_json(service_to_json(service, ""));
|
|
ss_dassert(old_json.get());
|
|
|
|
if (is_valid_resource_body(new_json) &&
|
|
object_to_server_relations(service->name, old_json.get(), new_json))
|
|
{
|
|
rval = true;
|
|
json_t* parameters = mxs_json_pointer(new_json, MXS_JSON_PTR_PARAMETERS);
|
|
json_t* old_parameters = mxs_json_pointer(old_json.get(), MXS_JSON_PTR_PARAMETERS);
|
|
|
|
ss_dassert(old_parameters);
|
|
|
|
if (parameters)
|
|
{
|
|
/** Create a set of accepted service parameters */
|
|
StringSet paramset;
|
|
for (int i = 0; config_service_params[i]; i++)
|
|
{
|
|
if (is_dynamic_param(config_service_params[i]))
|
|
{
|
|
paramset.insert(config_service_params[i]);
|
|
}
|
|
}
|
|
|
|
const char* key;
|
|
json_t* value;
|
|
|
|
json_object_foreach(parameters, key, value)
|
|
{
|
|
json_t* new_val = json_object_get(parameters, key);
|
|
json_t* old_val = json_object_get(old_parameters, key);
|
|
|
|
if (old_val && new_val && mxs::json_to_string(new_val) == mxs::json_to_string(old_val))
|
|
{
|
|
/** No change in values */
|
|
}
|
|
else if (paramset.find(key) != paramset.end())
|
|
{
|
|
/** Parameter can be altered */
|
|
if (!runtime_alter_service(service, key, mxs::json_to_string(value).c_str()))
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Parameter '%s' cannot be modified", key);
|
|
rval = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool validate_logs_json(json_t* json)
|
|
{
|
|
json_t* param = mxs_json_pointer(json, MXS_JSON_PTR_PARAMETERS);
|
|
bool rval = false;
|
|
|
|
if (param && json_is_object(param))
|
|
{
|
|
rval = is_bool_or_null(param, "highprecision") &&
|
|
is_bool_or_null(param, "maxlog") &&
|
|
is_bool_or_null(param, "syslog") &&
|
|
is_bool_or_null(param, "log_info") &&
|
|
is_bool_or_null(param, "log_warning") &&
|
|
is_bool_or_null(param, "log_notice") &&
|
|
is_bool_or_null(param, "log_debug") &&
|
|
is_count_or_null(param, "throttling/count") &&
|
|
is_count_or_null(param, "throttling/suppress_ms") &&
|
|
is_count_or_null(param, "throttling/window_ms");
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_alter_logs_from_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
|
|
if (validate_logs_json(json))
|
|
{
|
|
json_t* param = mxs_json_pointer(json, MXS_JSON_PTR_PARAMETERS);
|
|
json_t* value;
|
|
rval = true;
|
|
|
|
if ((value = mxs_json_pointer(param, "highprecision")))
|
|
{
|
|
mxs_log_set_highprecision_enabled(json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "maxlog")))
|
|
{
|
|
mxs_log_set_maxlog_enabled(json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "syslog")))
|
|
{
|
|
mxs_log_set_syslog_enabled(json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "log_info")))
|
|
{
|
|
mxs_log_set_priority_enabled(LOG_INFO, json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "log_warning")))
|
|
{
|
|
mxs_log_set_priority_enabled(LOG_WARNING, json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "log_notice")))
|
|
{
|
|
mxs_log_set_priority_enabled(LOG_NOTICE, json_boolean_value(value));
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "log_debug")))
|
|
{
|
|
mxs_log_set_priority_enabled(LOG_DEBUG, json_boolean_value(value));
|
|
}
|
|
|
|
if ((param = mxs_json_pointer(param, "throttling")) && json_is_object(param))
|
|
{
|
|
MXS_LOG_THROTTLING throttle;
|
|
mxs_log_get_throttling(&throttle);
|
|
|
|
if ((value = mxs_json_pointer(param, "count")))
|
|
{
|
|
throttle.count = json_integer_value(value);
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "suppress_ms")))
|
|
{
|
|
throttle.suppress_ms = json_integer_value(value);
|
|
}
|
|
|
|
if ((value = mxs_json_pointer(param, "window_ms")))
|
|
{
|
|
throttle.window_ms = json_integer_value(value);
|
|
}
|
|
|
|
mxs_log_set_throttling(&throttle);
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static bool validate_listener_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
json_t* param;
|
|
|
|
if (!(param = mxs_json_pointer(json, MXS_JSON_PTR_ID)))
|
|
{
|
|
runtime_error("Value not found: '%s'", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!json_is_string(param))
|
|
{
|
|
runtime_error("Value '%s' is not a string", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!(param = mxs_json_pointer(json, MXS_JSON_PTR_PARAMETERS)))
|
|
{
|
|
runtime_error("Value not found: '%s'", MXS_JSON_PTR_PARAMETERS);
|
|
}
|
|
else if (!json_is_object(param))
|
|
{
|
|
runtime_error("Value '%s' is not an object", MXS_JSON_PTR_PARAMETERS);
|
|
}
|
|
else if (is_count_or_null(param, CN_PORT) &&
|
|
is_string_or_null(param, CN_ADDRESS) &&
|
|
is_string_or_null(param, CN_AUTHENTICATOR) &&
|
|
is_string_or_null(param, CN_AUTHENTICATOR_OPTIONS) &&
|
|
validate_ssl_json(param))
|
|
{
|
|
rval = true;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_create_listener_from_json(SERVICE* service, json_t* json)
|
|
{
|
|
bool rval = false;
|
|
|
|
if (validate_listener_json(json))
|
|
{
|
|
std::string port = json_int_to_string(mxs_json_pointer(json, MXS_JSON_PTR_PARAM_PORT));
|
|
|
|
const char* id = get_string_or_null(json, MXS_JSON_PTR_ID);
|
|
const char* address = get_string_or_null(json, MXS_JSON_PTR_PARAM_ADDRESS);
|
|
const char* protocol = get_string_or_null(json, MXS_JSON_PTR_PARAM_PROTOCOL);
|
|
const char* authenticator = get_string_or_null(json, MXS_JSON_PTR_PARAM_AUTHENTICATOR);
|
|
const char* authenticator_options = get_string_or_null(json, MXS_JSON_PTR_PARAM_AUTHENTICATOR_OPTIONS);
|
|
const char* ssl_key = get_string_or_null(json, MXS_JSON_PTR_PARAM_SSL_KEY);
|
|
const char* ssl_cert = get_string_or_null(json, MXS_JSON_PTR_PARAM_SSL_CERT);
|
|
const char* ssl_ca_cert = get_string_or_null(json, MXS_JSON_PTR_PARAM_SSL_CA_CERT);
|
|
const char* ssl_version = get_string_or_null(json, MXS_JSON_PTR_PARAM_SSL_VERSION);
|
|
const char* ssl_cert_verify_depth = get_string_or_null(json, MXS_JSON_PTR_PARAM_SSL_CERT_VERIFY_DEPTH);
|
|
|
|
rval = runtime_create_listener(service, id, address, port.c_str(), protocol,
|
|
authenticator, authenticator_options,
|
|
ssl_key, ssl_cert, ssl_ca_cert, ssl_version,
|
|
ssl_cert_verify_depth);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
json_t* runtime_get_json_error()
|
|
{
|
|
json_t* obj = NULL;
|
|
std::string errmsg = runtime_get_error();
|
|
|
|
if (errmsg.length())
|
|
{
|
|
obj = mxs_json_error(errmsg.c_str());
|
|
}
|
|
|
|
return obj;
|
|
}
|
|
|
|
bool validate_user_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
json_t* id = mxs_json_pointer(json, MXS_JSON_PTR_ID);
|
|
json_t* type = mxs_json_pointer(json, MXS_JSON_PTR_TYPE);
|
|
json_t* password = mxs_json_pointer(json, MXS_JSON_PTR_PASSWORD);
|
|
json_t* account = mxs_json_pointer(json, MXS_JSON_PTR_ACCOUNT);
|
|
|
|
if (!id)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!json_is_string(id))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_ID);
|
|
}
|
|
else if (!type)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_TYPE);
|
|
}
|
|
else if (!json_is_string(type))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_TYPE);
|
|
}
|
|
else if (!account)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_ACCOUNT);
|
|
}
|
|
else if (!json_is_string(account))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_ACCOUNT);
|
|
}
|
|
else if (json_to_account_type(account) == USER_ACCOUNT_UNKNOWN)
|
|
{
|
|
runtime_error("The '%s' field is not a valid account value", MXS_JSON_PTR_ACCOUNT);
|
|
}
|
|
else
|
|
{
|
|
if (strcmp(json_string_value(type), CN_INET) == 0)
|
|
{
|
|
if (!password)
|
|
{
|
|
runtime_error("Request body does not define the '%s' field", MXS_JSON_PTR_PASSWORD);
|
|
}
|
|
else if (!json_is_string(password))
|
|
{
|
|
runtime_error("The '%s' field is not a string", MXS_JSON_PTR_PASSWORD);
|
|
}
|
|
else
|
|
{
|
|
rval = true;
|
|
}
|
|
}
|
|
else if (strcmp(json_string_value(type), CN_UNIX) == 0)
|
|
{
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Invalid value for field '%s': %s", MXS_JSON_PTR_TYPE,
|
|
json_string_value(type));
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_create_user_from_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
|
|
if (validate_user_json(json))
|
|
{
|
|
const char* user = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_ID));
|
|
const char* password = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_PASSWORD));
|
|
std::string strtype = json_string_value(mxs_json_pointer(json, MXS_JSON_PTR_TYPE));
|
|
user_account_type type = json_to_account_type(mxs_json_pointer(json, MXS_JSON_PTR_ACCOUNT));
|
|
const char* err = NULL;
|
|
|
|
if (strtype == CN_INET && (err = admin_add_inet_user(user, password, type)) == ADMIN_SUCCESS)
|
|
{
|
|
MXS_NOTICE("Create network user '%s'", user);
|
|
rval = true;
|
|
}
|
|
else if (strtype == CN_UNIX && (err = admin_enable_linux_account(user, type)) == ADMIN_SUCCESS)
|
|
{
|
|
MXS_NOTICE("Enabled account '%s'", user);
|
|
rval = true;
|
|
}
|
|
else if (err)
|
|
{
|
|
runtime_error("Failed to add user '%s': %s", user, err);
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool runtime_remove_user(const char* id, enum user_type type)
|
|
{
|
|
bool rval = false;
|
|
const char* err = type == USER_TYPE_INET ?
|
|
admin_remove_inet_user(id) :
|
|
admin_disable_linux_account(id);
|
|
|
|
if (err == ADMIN_SUCCESS)
|
|
{
|
|
MXS_NOTICE("%s '%s'", type == USER_TYPE_INET ?
|
|
"Deleted network user" : "Disabled account", id);
|
|
rval = true;
|
|
}
|
|
else
|
|
{
|
|
runtime_error("Failed to remove user '%s': %s", id, err);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool validate_maxscale_json(json_t* json)
|
|
{
|
|
bool rval = false;
|
|
json_t* param = mxs_json_pointer(json, MXS_JSON_PTR_PARAMETERS);
|
|
|
|
if (param)
|
|
{
|
|
rval = is_count_or_null(param, CN_AUTH_CONNECT_TIMEOUT) &&
|
|
is_count_or_null(param, CN_AUTH_READ_TIMEOUT) &&
|
|
is_count_or_null(param, CN_AUTH_WRITE_TIMEOUT) &&
|
|
is_bool_or_null(param, CN_ADMIN_AUTH) &&
|
|
is_bool_or_null(param, CN_ADMIN_LOG_AUTH_FAILURES);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
bool ignored_core_parameters(const char* key)
|
|
{
|
|
static const char* params[] =
|
|
{
|
|
"libdir",
|
|
"datadir",
|
|
"process_datadir",
|
|
"cachedir",
|
|
"configdir",
|
|
"config_persistdir",
|
|
"module_configdir",
|
|
"piddir",
|
|
"logdir",
|
|
"langdir",
|
|
"execdir",
|
|
"connector_plugindir",
|
|
NULL
|
|
};
|
|
|
|
for (int i = 0; params[i]; i++)
|
|
{
|
|
if (strcmp(key, params[i]) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool runtime_alter_maxscale_from_json(json_t* new_json)
|
|
{
|
|
bool rval = false;
|
|
|
|
if (validate_maxscale_json(new_json))
|
|
{
|
|
rval = true;
|
|
json_t* old_json = config_maxscale_to_json("");
|
|
ss_dassert(old_json);
|
|
|
|
json_t* new_param = mxs_json_pointer(new_json, MXS_JSON_PTR_PARAMETERS);
|
|
json_t* old_param = mxs_json_pointer(old_json, MXS_JSON_PTR_PARAMETERS);
|
|
|
|
const char* key;
|
|
json_t* value;
|
|
|
|
json_object_foreach(new_param, key, value)
|
|
{
|
|
json_t* new_val = json_object_get(new_param, key);
|
|
json_t* old_val = json_object_get(old_param, key);
|
|
|
|
if (old_val && new_val && mxs::json_to_string(new_val) == mxs::json_to_string(old_val))
|
|
{
|
|
/** No change in values */
|
|
}
|
|
else if (ignored_core_parameters(key))
|
|
{
|
|
/** We can't change these at runtime */
|
|
MXS_INFO("Ignoring runtime change to '%s': Cannot be altered at runtime", key);
|
|
}
|
|
else if (!runtime_alter_maxscale(key, mxs::json_to_string(value).c_str()))
|
|
{
|
|
rval = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return rval;
|
|
}
|