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Wsrep TLS service

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This commit defines a TLS service interface. If the implementation is
provided by the application when the provider is loaded, appropriate
hooks are probed from the provider and the provider side hooks are
initialized after the provider is loaded.

A sample implementation to demostrate the use of TLS interface
is provided in dbsim/db_tls.cpp.

Also contains a change to thread service interface: The
thread exit virtual method was changed to function pointer
to allow thread exit path which does not involve C++.
This commit is contained in:
Teemu Ollakka
2020-06-26 15:28:25 +03:00
parent a12b814270
commit 9318a50d18
20 changed files with 1193 additions and 79 deletions
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65
src/wsrep_provider_v26.cpp
View File

@ -26,8 +26,10 @@
#include "wsrep/exception.hpp"
#include "wsrep/logger.hpp"
#include "wsrep/thread_service.hpp"
#include "wsrep/tls_service.hpp"
#include "thread_service_v1.hpp"
#include "tls_service_v1.hpp"
#include "v26/wsrep_api.h"
@ -592,7 +594,7 @@ namespace
if (wsrep::thread_service_v1_probe(dlh))
{
// No support in library.
return 0;
return 1;
}
else
{
@ -610,6 +612,58 @@ namespace
}
return 0;
}
static void deinit_thread_service(void* dlh)
{
// assert(not wsrep::thread_service_v1_probe(dlh));
wsrep::thread_service_v1_deinit(dlh);
}
static int init_tls_service(void* dlh,
wsrep::tls_service* tls_service)
{
assert(tls_service);
if (not wsrep::tls_service_v1_probe(dlh))
{
return wsrep::tls_service_v1_init(dlh, tls_service);
}
return 1;
}
static void deinit_tls_service(void* dlh)
{
// assert(not wsrep::tls_service_v1_probe(dlh));
wsrep::tls_service_v1_deinit(dlh);
}
}
void wsrep::wsrep_provider_v26::init_services(
const wsrep::provider::services& services)
{
if (services.thread_service)
{
if (init_thread_service(wsrep_->dlh, services.thread_service))
{
throw wsrep::runtime_error("Failed to initialize thread service");
}
services_enabled_.thread_service = services.thread_service;
}
if (services.tls_service)
{
if (init_tls_service(wsrep_->dlh, services.tls_service))
{
throw wsrep::runtime_error("Failed to initialze TLS service");
}
services_enabled_.tls_service = services.tls_service;
}
}
void wsrep::wsrep_provider_v26::deinit_services()
{
if (services_enabled_.tls_service)
deinit_tls_service(wsrep_->dlh);
if (services_enabled_.thread_service)
deinit_thread_service(wsrep_->dlh);
}
wsrep::wsrep_provider_v26::wsrep_provider_v26(
@ -619,6 +673,7 @@ wsrep::wsrep_provider_v26::wsrep_provider_v26(
const wsrep::provider::services& services)
: provider(server_state)
, wsrep_()
, services_enabled_()
{
wsrep_gtid_t state_id;
bool encryption_enabled = server_state.encryption_service() &&
@ -653,11 +708,7 @@ wsrep::wsrep_provider_v26::wsrep_provider_v26(
throw wsrep::runtime_error("Failed to load wsrep library");
}
if (services.thread_service &&
init_thread_service(wsrep_->dlh, services.thread_service))
{
throw wsrep::runtime_error("Failed to initialize thread service");
}
init_services(services);
if (wsrep_->init(wsrep_, &init_args) != WSREP_OK)
{
@ -683,6 +734,8 @@ wsrep::wsrep_provider_v26::wsrep_provider_v26(
wsrep::wsrep_provider_v26::~wsrep_provider_v26()
{
wsrep_->free(wsrep_);
deinit_services();
wsrep_unload(wsrep_);
}