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forward.h
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forward.h
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2019 The Fluent Bit Authors
* Copyright (C) 2015-2018 Treasure Data Inc.
*
* 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:https://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.
*/
#ifndef FLB_OUT_FORWARD
#define FLB_OUT_FORWARD
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_sds.h>
#ifdef FLB_HAVE_TLS
#include <mbedtls/entropy.h>
#include <mbedtls/error.h>
#include <mbedtls/ctr_drbg.h>
#endif
/*
* Configuration: we put this separate from the main
* context so every Upstream Node can have it own configuration
* reference and pass it smoothly to the required caller.
*
* On simple mode (no HA), the structure is referenced
* by flb_forward->config. In HA mode the structure is referenced
* by the Upstream node context as an opaque data type.
*/
struct flb_forward_config {
int secured; /* Using Secure Forward mode ? */
int time_as_integer; /* Use backward compatible timestamp ? */
/* config */
flb_sds_t shared_key; /* shared key */
flb_sds_t self_hostname; /* hotname used in certificate */
int empty_shared_key; /* use an empty string as shared key */
int require_ack_response; /* Require acknowledge for "chunk" */
int send_options; /* send options in messages */
const char *username;
const char *password;
/* mbedTLS specifics */
unsigned char shared_key_salt[16];
#ifdef FLB_HAVE_TLS
mbedtls_entropy_context tls_entropy;
mbedtls_ctr_drbg_context tls_ctr_drbg;
#endif
struct mk_list _head; /* Link to list flb_forward->configs */
};
/* Plugin Context */
struct flb_forward {
/* if HA mode is enabled */
int ha_mode; /* High Availability mode enabled ? */
char *ha_upstream; /* Upstream configuration file */
struct flb_upstream_ha *ha;
/* Upstream handler and config context for single mode (no HA) */
struct flb_upstream *u;
struct mk_list configs;
};
struct flb_forward_ping {
const char *nonce;
int nonce_len;
const char *auth;
int auth_len;
int keepalive;
};
#endif