diff options
Diffstat (limited to 'fluent-bit/plugins/in_splunk/splunk_config.c')
| -rw-r--r-- | fluent-bit/plugins/in_splunk/splunk_config.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/fluent-bit/plugins/in_splunk/splunk_config.c b/fluent-bit/plugins/in_splunk/splunk_config.c new file mode 100644 index 000000000..f61070153 --- /dev/null +++ b/fluent-bit/plugins/in_splunk/splunk_config.c @@ -0,0 +1,184 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ + +/* Fluent Bit + * ========== + * Copyright (C) 2015-2022 The Fluent Bit Authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <fluent-bit/flb_input_plugin.h> + +#include "splunk.h" +#include "splunk_config.h" +#include "splunk_conn.h" +#include "splunk_config.h" + +struct flb_splunk *splunk_config_create(struct flb_input_instance *ins) +{ + struct mk_list *header_iterator; + struct flb_slist_entry *header_value; + struct flb_slist_entry *header_name; + struct flb_config_map_val *header_pair; + char port[8]; + int ret; + struct flb_splunk *ctx; + const char *tmp; + + ctx = flb_calloc(1, sizeof(struct flb_splunk)); + if (!ctx) { + flb_errno(); + return NULL; + } + ctx->ins = ins; + mk_list_init(&ctx->connections); + + /* Load the config map */ + ret = flb_input_config_map_set(ins, (void *) ctx); + if (ret == -1) { + flb_free(ctx); + return NULL; + } + + ctx->auth_header = NULL; + tmp = flb_input_get_property("splunk_token", ins); + if (tmp) { + ctx->auth_header = flb_sds_create("Splunk "); + if (ctx->auth_header == NULL) { + flb_plg_error(ctx->ins, "error on prefix of auth_header generation"); + splunk_config_destroy(ctx); + return NULL; + } + ret = flb_sds_cat_safe(&ctx->auth_header, tmp, strlen(tmp)); + if (ret < 0) { + flb_plg_error(ctx->ins, "error on token generation"); + splunk_config_destroy(ctx); + return NULL; + } + } + + /* Listen interface (if not set, defaults to 0.0.0.0:8088) */ + flb_input_net_default_listener("0.0.0.0", 8088, ins); + + ctx->listen = flb_strdup(ins->host.listen); + snprintf(port, sizeof(port) - 1, "%d", ins->host.port); + ctx->tcp_port = flb_strdup(port); + + /* HTTP Server specifics */ + ctx->server = flb_calloc(1, sizeof(struct mk_server)); + if (ctx->server == NULL) { + flb_plg_error(ctx->ins, "error on mk_server allocation"); + splunk_config_destroy(ctx); + return NULL; + } + ctx->server->keep_alive = MK_TRUE; + + /* monkey detects server->workers == 0 as the server not being initialized at the + * moment so we want to make sure that it stays that way! + */ + + ret = flb_log_event_encoder_init(&ctx->log_encoder, + FLB_LOG_EVENT_FORMAT_DEFAULT); + + if (ret != FLB_EVENT_ENCODER_SUCCESS) { + flb_plg_error(ctx->ins, "error initializing event encoder : %d", ret); + + splunk_config_destroy(ctx); + + return NULL; + } + + ctx->success_headers_str = flb_sds_create_size(1); + + if (ctx->success_headers_str == NULL) { + splunk_config_destroy(ctx); + + return NULL; + } + + flb_config_map_foreach(header_iterator, header_pair, ctx->success_headers) { + header_name = mk_list_entry_first(header_pair->val.list, + struct flb_slist_entry, + _head); + + header_value = mk_list_entry_last(header_pair->val.list, + struct flb_slist_entry, + _head); + + ret = flb_sds_cat_safe(&ctx->success_headers_str, + header_name->str, + flb_sds_len(header_name->str)); + + if (ret == 0) { + ret = flb_sds_cat_safe(&ctx->success_headers_str, + ": ", + 2); + } + + if (ret == 0) { + ret = flb_sds_cat_safe(&ctx->success_headers_str, + header_value->str, + flb_sds_len(header_value->str)); + } + + if (ret == 0) { + ret = flb_sds_cat_safe(&ctx->success_headers_str, + "\r\n", + 2); + } + + if (ret != 0) { + splunk_config_destroy(ctx); + + return NULL; + } + } + + return ctx; +} + +int splunk_config_destroy(struct flb_splunk *ctx) +{ + /* release all connections */ + splunk_conn_release_all(ctx); + + flb_log_event_encoder_destroy(&ctx->log_encoder); + + if (ctx->collector_id != -1) { + flb_input_collector_delete(ctx->collector_id, ctx->ins); + + ctx->collector_id = -1; + } + + if (ctx->auth_header != NULL) { + flb_sds_destroy(ctx->auth_header); + } + + if (ctx->downstream != NULL) { + flb_downstream_destroy(ctx->downstream); + } + + if (ctx->server) { + flb_free(ctx->server); + } + + if (ctx->success_headers_str != NULL) { + flb_sds_destroy(ctx->success_headers_str); + } + + + flb_free(ctx->listen); + flb_free(ctx->tcp_port); + flb_free(ctx); + return 0; +} |