/** Create and return top-level cont with no transient data
* Sets up engine manager and kill-or-continue txn hook before launching
* potentially-slow mainconfiguration in separate thread.
*/
static ib_status_t tsib_pre_init(TSCont *contp)
{
int rv;
ib_status_t rc;
TSCont cont;
assert(contp != NULL);
/* create a cont to fend off traffic while we read config */
*contp = cont = TSContCreate(ironbee_plugin, NULL);
if (cont == NULL) {
TSError("[ironbee] failed to create initial continuation: disabled");
return IB_EUNKNOWN;
}
if (module_data.allow_at_startup) {
/* SSN_START doesn't use contdata; READ_REQUEST_HDR only needs non-null flag.
* Using &module_data might let us clean up some tsib_api stuff in future.
*/
TSContDataSet(cont, &module_data);
}
else {
/* NULL contdata signals the READ_REQUEST_HDR hook to reject requests */
TSContDataSet(cont, NULL);
}
TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
if (!module_data.log_disable) {
/* success is documented as TS_LOG_ERROR_NO_ERROR but that's undefined.
* It's actually a TS_SUCCESS (proxy/InkAPI.cc line 6641).
*/
printf("Logging to \"%s\"\n", module_data.log_file);
rv = TSTextLogObjectCreate(module_data.log_file,
TS_LOG_MODE_ADD_TIMESTAMP,
&module_data.logger);
if (rv != TS_SUCCESS) {
TSError("[ironbee] Error creating log file.");
return IB_EUNKNOWN;
}
}
/* Initialize IronBee (including util) */
rc = ib_initialize();
if (rc != IB_OK) {
TSError("[ironbee] Error initializing IronBee: %s",
ib_status_to_string(rc));
return rc;
}
/* Create the IronBee engine manager */
TSDebug("ironbee", "Creating IronBee engine manager");
rc = ib_manager_create(&(module_data.manager), /* Engine Manager */
&ibplugin, /* Server object */
module_data.max_engines); /* Default max */
if (rc != IB_OK) {
TSError("[ironbee] Error creating IronBee engine manager: %s",
ib_status_to_string(rc));
}
return rc;
}
/**
* IronBee initialization function. Sets up engine and logging,
* and reads IronBee config.
*
* @param[in] cf Configuration rec
* @return NGX_OK or error
*/
static ngx_int_t ironbee_init(ngx_conf_t *cf)
{
ironbee_proc_t *proc;
ib_status_t rc;
module_data_t *mod_data = &module_data;
char *buf;
/* We still use the global-log hack to initialise */
ngx_regex_malloc_init(cf->pool);
ngx_log_error(NGX_LOG_NOTICE, cf->log, 0, "ironbee_init %d", getpid());
proc = ngx_http_conf_get_module_main_conf(cf, ngx_ironbee_module);
if (proc->log_level == NGX_CONF_UNSET_UINT) {
proc->log_level = IB_LOG_NOTICE;
}
if (proc->max_engines == NGX_CONF_UNSET_UINT) {
proc->max_engines = IB_MANAGER_DEFAULT_MAX_ENGINES;
}
if (proc->use_ngxib_logger == NGX_CONF_UNSET) {
proc->use_ngxib_logger =1;
}
/* initialise fields in mod_data */
mod_data->ib_log_active = proc->use_ngxib_logger;
mod_data->log = cf->log;
mod_data->log_level = proc->log_level;
rc = ib_initialize();
if (rc != IB_OK) {
cleanup_return IB2NG(rc);
}
/* Create the IronBee engine manager */
rc = ib_manager_create(&(mod_data->manager), /* Engine Manager */
ngxib_server(), /* Server object */
proc->max_engines); /* Max engines */
if (rc != IB_OK) {
cleanup_return IB2NG(rc);
}
rc = ib_manager_register_module_fn(
mod_data->manager,
ngxib_module,
mod_data);
if (rc != IB_OK) {
cleanup_return IB2NG(rc);
}
/* Null manager here would be a bug, as per RNS-CR-143 comments */
assert(mod_data->manager != NULL);
/* FIXME - use the temp pool operation for this */
buf = strndup((char*)proc->config_file.data, proc->config_file.len);
/* Create the initial engine */
rc = ib_manager_engine_create(mod_data->manager, buf);
if (rc != IB_OK) {
free(buf);
cleanup_return IB2NG(rc);
}
free(buf);
cleanup_return rc == IB_OK ? NGX_OK : IB2NG(rc);
}
