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Diffstat (limited to 'src/fluent-bit/plugins/in_unix_socket/unix_socket_conn.c')
-rw-r--r--src/fluent-bit/plugins/in_unix_socket/unix_socket_conn.c433
1 files changed, 0 insertions, 433 deletions
diff --git a/src/fluent-bit/plugins/in_unix_socket/unix_socket_conn.c b/src/fluent-bit/plugins/in_unix_socket/unix_socket_conn.c
deleted file mode 100644
index 472cbbeb2..000000000
--- a/src/fluent-bit/plugins/in_unix_socket/unix_socket_conn.c
+++ /dev/null
@@ -1,433 +0,0 @@
-/* -*- 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 <fluent-bit/flb_utils.h>
-#include <fluent-bit/flb_engine.h>
-#include <fluent-bit/flb_network.h>
-#include <fluent-bit/flb_pack.h>
-#include <fluent-bit/flb_error.h>
-
-#include "unix_socket.h"
-#include "unix_socket_conn.h"
-
-static inline void consume_bytes(char *buf, int bytes, int length)
-{
- memmove(buf, buf + bytes, length - bytes);
-}
-
-static inline int process_pack(struct unix_socket_conn *conn,
- char *pack, size_t size)
-{
- int ret;
- size_t off = 0;
- msgpack_unpacked result;
- msgpack_object entry;
- struct flb_in_unix_socket_config *ctx;
-
- ctx = (struct flb_in_unix_socket_config *) conn->ctx;
-
- flb_log_event_encoder_reset(ctx->log_encoder);
-
- /* First pack the results, iterate concatenated messages */
- msgpack_unpacked_init(&result);
- while (msgpack_unpack_next(&result, pack, size, &off) == MSGPACK_UNPACK_SUCCESS) {
- entry = result.data;
-
- entry = result.data;
-
- ret = flb_log_event_encoder_begin_record(ctx->log_encoder);
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_set_current_timestamp(ctx->log_encoder);
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- if (entry.type == MSGPACK_OBJECT_MAP) {
- ret = flb_log_event_encoder_set_body_from_msgpack_object(
- ctx->log_encoder, &entry);
- }
- else if (entry.type == MSGPACK_OBJECT_ARRAY) {
- ret = flb_log_event_encoder_append_body_values(
- ctx->log_encoder,
- FLB_LOG_EVENT_CSTRING_VALUE("msg"),
- FLB_LOG_EVENT_MSGPACK_OBJECT_VALUE(&entry));
- }
- else {
- ret = FLB_EVENT_ENCODER_ERROR_INVALID_VALUE_TYPE;
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_commit_record(ctx->log_encoder);
- }
-
- if (ret != FLB_EVENT_ENCODER_SUCCESS) {
- break;
- }
- }
- }
-
- msgpack_unpacked_destroy(&result);
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- flb_input_log_append(conn->ins, NULL, 0,
- ctx->log_encoder->output_buffer,
- ctx->log_encoder->output_length);
- ret = 0;
- }
- else {
- flb_plg_error(ctx->ins, "log event encoding error : %d", ret);
-
- ret = -1;
- }
-
- return ret;
-}
-
-/* Process a JSON payload, return the number of processed bytes */
-static ssize_t parse_payload_json(struct unix_socket_conn *conn)
-{
- int ret;
- int out_size;
- char *pack;
-
- ret = flb_pack_json_state(conn->buf_data, conn->buf_len,
- &pack, &out_size, &conn->pack_state);
- if (ret == FLB_ERR_JSON_PART) {
- flb_plg_debug(conn->ins, "JSON incomplete, waiting for more data...");
- return 0;
- }
- else if (ret == FLB_ERR_JSON_INVAL) {
- flb_plg_warn(conn->ins, "invalid JSON message, skipping");
- conn->buf_len = 0;
- conn->pack_state.multiple = FLB_TRUE;
- return -1;
- }
- else if (ret == -1) {
- return -1;
- }
-
- /* Process the packaged JSON and return the last byte used */
- process_pack(conn, pack, out_size);
- flb_free(pack);
-
- return conn->pack_state.last_byte;
-}
-
-/*
- * Process a raw text payload, uses the delimited character to split records,
- * return the number of processed bytes
- */
-static ssize_t parse_payload_none(struct unix_socket_conn *conn)
-{
- int ret;
- int len;
- int sep_len;
- size_t consumed = 0;
- char *buf;
- char *s;
- char *separator;
- struct flb_in_unix_socket_config *ctx;
-
- ctx = (struct flb_in_unix_socket_config *) conn->ctx;
-
- separator = conn->ctx->separator;
- sep_len = flb_sds_len(conn->ctx->separator);
-
- buf = conn->buf_data;
-
- flb_log_event_encoder_reset(ctx->log_encoder);
-
- while ((s = strstr(buf, separator))) {
- len = (s - buf);
- if (len == 0) {
- break;
- }
- else if (len > 0) {
- ret = flb_log_event_encoder_begin_record(ctx->log_encoder);
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_set_current_timestamp(ctx->log_encoder);
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_append_body_values(
- ctx->log_encoder,
- FLB_LOG_EVENT_CSTRING_VALUE("log"),
- FLB_LOG_EVENT_STRING_VALUE(buf, len));
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_commit_record(ctx->log_encoder);
- }
-
- if (ret != FLB_EVENT_ENCODER_SUCCESS) {
- break;
- }
-
- consumed += len + 1;
- buf += len + sep_len;
- }
- else {
- break;
- }
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- flb_input_log_append(conn->ins, NULL, 0,
- ctx->log_encoder->output_buffer,
- ctx->log_encoder->output_length);
- }
- else {
- flb_plg_error(ctx->ins, "log event encoding error : %d", ret);
- }
-
- return consumed;
-}
-
-/* Callback invoked every time an event is triggered for a connection */
-int unix_socket_conn_event(void *data)
-{
- int bytes;
- int available;
- int size;
- ssize_t ret_payload = -1;
- char *tmp;
- struct mk_event *event;
- struct unix_socket_conn *conn;
- struct flb_connection *connection;
- struct flb_in_unix_socket_config *ctx;
-
- connection = (struct flb_connection *) data;
-
- conn = connection->user_data;
-
- ctx = conn->ctx;
-
- if (ctx->dgram_mode_flag) {
- if (ctx->format == FLB_UNIX_SOCKET_FMT_JSON &&
- conn->buf_len > 0) {
- flb_pack_state_reset(&conn->pack_state);
- flb_pack_state_init(&conn->pack_state);
-
- conn->pack_state.multiple = FLB_TRUE;
- }
-
- event = ctx->collector_event;
- }
- else {
- event = &connection->event;
- }
-
- if (event->mask & MK_EVENT_READ) {
- available = (conn->buf_size - conn->buf_len) - 1;
- if (available < 1) {
- if (conn->buf_size + ctx->chunk_size > ctx->buffer_size) {
- flb_plg_trace(ctx->ins,
- "fd=%i incoming data exceed limit (%zu KB)",
- event->fd, (ctx->buffer_size / 1024));
-
- if (!ctx->dgram_mode_flag) {
- unix_socket_conn_del(conn);
- }
-
- return -1;
- }
-
- size = conn->buf_size + ctx->chunk_size;
- tmp = flb_realloc(conn->buf_data, size);
- if (!tmp) {
- flb_errno();
- return -1;
- }
- flb_plg_trace(ctx->ins, "fd=%i buffer realloc %i -> %i",
- event->fd, conn->buf_size, size);
-
- conn->buf_data = tmp;
- conn->buf_size = size;
- available = (conn->buf_size - conn->buf_len) - 1;
- }
-
- /* Read data */
- bytes = flb_io_net_read(connection,
- (void *) &conn->buf_data[conn->buf_len],
- available);
-
- if (bytes <= 0) {
- if (!ctx->dgram_mode_flag) {
- flb_plg_trace(ctx->ins, "fd=%i closed connection", event->fd);
- unix_socket_conn_del(conn);
- }
-
- return -1;
- }
-
- flb_plg_trace(ctx->ins, "read()=%i pre_len=%i now_len=%i",
- bytes, conn->buf_len, conn->buf_len + bytes);
- conn->buf_len += bytes;
- conn->buf_data[conn->buf_len] = '\0';
-
- /* Strip CR or LF if found at first byte */
- if (conn->buf_data[0] == '\r' || conn->buf_data[0] == '\n') {
- /* Skip message with one byte with CR or LF */
- flb_plg_trace(ctx->ins, "skip one byte message with ASCII code=%i",
- conn->buf_data[0]);
- consume_bytes(conn->buf_data, 1, conn->buf_len);
- conn->buf_len--;
- conn->buf_data[conn->buf_len] = '\0';
- }
-
- /* JSON Format handler */
- if (ctx->format == FLB_UNIX_SOCKET_FMT_JSON) {
- ret_payload = parse_payload_json(conn);
- if (ret_payload == 0) {
- /* Incomplete JSON message, we need more data */
- return -1;
- }
- else if (ret_payload == -1) {
- flb_pack_state_reset(&conn->pack_state);
- flb_pack_state_init(&conn->pack_state);
- conn->pack_state.multiple = FLB_TRUE;
- return -1;
- }
- }
- else if (ctx->format == FLB_UNIX_SOCKET_FMT_NONE) {
- ret_payload = parse_payload_none(conn);
- if (ret_payload == 0) {
- return -1;
- }
- else if (ret_payload == -1) {
- conn->buf_len = 0;
- return -1;
- }
- }
-
-
- consume_bytes(conn->buf_data, ret_payload, conn->buf_len);
- conn->buf_len -= ret_payload;
- conn->buf_data[conn->buf_len] = '\0';
-
- if (ctx->format == FLB_UNIX_SOCKET_FMT_JSON) {
- jsmn_init(&conn->pack_state.parser);
- conn->pack_state.tokens_count = 0;
- conn->pack_state.last_byte = 0;
- conn->pack_state.buf_len = 0;
- }
-
- return bytes;
- }
-
- if (event->mask & MK_EVENT_CLOSE) {
- flb_plg_trace(ctx->ins, "fd=%i hangup", event->fd);
- unix_socket_conn_del(conn);
- return -1;
- }
-
- return 0;
-}
-
-/* Create a new mqtt request instance */
-struct unix_socket_conn *unix_socket_conn_add(struct flb_connection *connection,
- struct flb_in_unix_socket_config *ctx)
-{
- struct unix_socket_conn *conn;
- int ret;
-
- conn = flb_malloc(sizeof(struct unix_socket_conn));
- if (!conn) {
- flb_errno();
- return NULL;
- }
-
- conn->connection = connection;
-
- /* Set data for the event-loop */
- MK_EVENT_NEW(&connection->event);
-
- connection->user_data = conn;
- connection->event.type = FLB_ENGINE_EV_CUSTOM;
- connection->event.handler = unix_socket_conn_event;
-
- /* Connection info */
- conn->ctx = ctx;
- conn->buf_len = 0;
- conn->rest = 0;
- conn->status = UNIX_SOCKET_NEW;
-
- conn->buf_data = flb_malloc(ctx->chunk_size);
- if (!conn->buf_data) {
- flb_errno();
-
- flb_plg_error(ctx->ins, "could not allocate new connection");
- flb_free(conn);
-
- return NULL;
- }
- conn->buf_size = ctx->chunk_size;
- conn->ins = ctx->ins;
-
- /* Initialize JSON parser */
- if (ctx->format == FLB_UNIX_SOCKET_FMT_JSON) {
- flb_pack_state_init(&conn->pack_state);
- conn->pack_state.multiple = FLB_TRUE;
- }
-
- /* Register instance into the event loop */
- ret = mk_event_add(flb_engine_evl_get(),
- connection->fd,
- FLB_ENGINE_EV_CUSTOM,
- MK_EVENT_READ,
- &connection->event);
- if (ret == -1) {
- flb_plg_error(ctx->ins, "could not register new connection");
-
- flb_free(conn->buf_data);
- flb_free(conn);
-
- return NULL;
- }
-
- mk_list_add(&conn->_head, &ctx->connections);
-
- return conn;
-}
-
-int unix_socket_conn_del(struct unix_socket_conn *conn)
-{
- struct flb_in_unix_socket_config *ctx;
-
- ctx = conn->ctx;
-
- if (ctx->format == FLB_UNIX_SOCKET_FMT_JSON) {
- flb_pack_state_reset(&conn->pack_state);
- }
-
- /* The downstream unregisters the file descriptor from the event-loop
- * so there's nothing to be done by the plugin
- */
- flb_downstream_conn_release(conn->connection);
-
- /* Release resources */
- mk_list_del(&conn->_head);
-
- flb_free(conn->buf_data);
- flb_free(conn);
-
- return 0;
-}
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