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-rw-r--r--fluent-bit/plugins/in_serial/in_serial.c443
1 files changed, 0 insertions, 443 deletions
diff --git a/fluent-bit/plugins/in_serial/in_serial.c b/fluent-bit/plugins/in_serial/in_serial.c
deleted file mode 100644
index 3675f1e92..000000000
--- a/fluent-bit/plugins/in_serial/in_serial.c
+++ /dev/null
@@ -1,443 +0,0 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-
-/* Serial input plugin for Fluent Bit
- * ==================================
- * Copyright (C) 2015-2022 The Fluent Bit Authors
- * Copyright (C) 2015-2016 Takeshi HASEGAWA
- *
- * 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_info.h>
-#include <fluent-bit/flb_input_plugin.h>
-#include <fluent-bit/flb_input.h>
-#include <fluent-bit/flb_utils.h>
-#include <fluent-bit/flb_engine.h>
-#include <fluent-bit/flb_pack.h>
-#include <fluent-bit/flb_error.h>
-#include <msgpack.h>
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <ctype.h>
-#include <sys/stat.h>
-#include <inttypes.h>
-#include <termios.h>
-
-#include "in_serial.h"
-#include "in_serial_config.h"
-
-static inline int process_line(const char *line, int len,
- struct flb_in_serial_config *ctx)
-{
- int ret;
-
- 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("msg"),
- FLB_LOG_EVENT_STRING_VALUE(line, len));
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_commit_record(ctx->log_encoder);
- }
-
- flb_debug("[in_serial] message '%s'", line);
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = 0;
- }
- else {
- ret = -1;
- }
-
- return ret;
-}
-
-static inline int process_pack(struct flb_in_serial_config *ctx,
- char *pack, size_t size)
-{
- int ret;
- size_t off = 0;
- msgpack_unpacked result;
- msgpack_object entry;
-
- ret = FLB_EVENT_ENCODER_SUCCESS;
-
- /* 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;
-
- 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("msg"),
- FLB_LOG_EVENT_MSGPACK_OBJECT_VALUE(&entry));
- }
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = flb_log_event_encoder_commit_record(ctx->log_encoder);
- }
- }
-
- msgpack_unpacked_destroy(&result);
-
- if (ret == FLB_EVENT_ENCODER_SUCCESS) {
- ret = 0;
- }
- else {
- ret = -1;
- }
-
- return ret;
-}
-
-static inline void consume_bytes(char *buf, int bytes, int length)
-{
- memmove(buf, buf + bytes, length - bytes);
-}
-
-/* Callback triggered when some serial msgs are available */
-static int cb_serial_collect(struct flb_input_instance *in,
- struct flb_config *config, void *in_context)
-{
- int ret;
- int bytes = 0;
- int available;
- int len;
- int hits;
- char *sep;
- char *buf;
- struct flb_in_serial_config *ctx = in_context;
-
- flb_log_event_encoder_reset(ctx->log_encoder);
-
- ret = 0;
-
- while (1) {
- available = (sizeof(ctx->buf_data) -1) - ctx->buf_len;
- if (available > 1) {
- bytes = read(ctx->fd, ctx->buf_data + ctx->buf_len, available);
-
- if (bytes == -1) {
- if (errno == EPIPE || errno == EINTR) {
- ret = -1;
- }
- else {
- ret = 0;
- }
-
- break;
- }
- else if (bytes == 0) {
- ret = 0;
-
- break;
- }
- }
- ctx->buf_len += bytes;
-
- /* Always set a delimiter to avoid buffer trash */
- ctx->buf_data[ctx->buf_len] = '\0';
-
- /* Check if our buffer is full */
- if (ctx->buffer_id + 1 == SERIAL_BUFFER_SIZE) {
- ret = flb_engine_flush(config, &in_serial_plugin);
- if (ret == -1) {
- ctx->buffer_id = 0;
- }
- }
-
- sep = NULL;
- buf = ctx->buf_data;
- len = ctx->buf_len;
- hits = 0;
-
- /* Handle FTDI handshake */
- if (ctx->buf_data[0] == '\0') {
- consume_bytes(ctx->buf_data, 1, ctx->buf_len);
- ctx->buf_len--;
- }
-
- /* Strip CR or LF if found at first byte */
- if (ctx->buf_data[0] == '\r' || ctx->buf_data[0] == '\n') {
- /* Skip message with one byte with CR or LF */
- flb_trace("[in_serial] skip one byte message with ASCII code=%i",
- ctx->buf_data[0]);
- consume_bytes(ctx->buf_data, 1, ctx->buf_len);
- ctx->buf_len--;
- }
-
- /* Handle the case when a Separator is set */
- if (ctx->separator) {
- while ((sep = strstr(ctx->buf_data, ctx->separator))) {
- len = (sep - ctx->buf_data);
- if (len > 0) {
- /* process the line based in the separator position */
- process_line(buf, len, ctx);
- consume_bytes(ctx->buf_data, len + ctx->sep_len, ctx->buf_len);
- ctx->buf_len -= (len + ctx->sep_len);
- hits++;
- }
- else {
- consume_bytes(ctx->buf_data, ctx->sep_len, ctx->buf_len);
- ctx->buf_len -= ctx->sep_len;
- }
- ctx->buf_data[ctx->buf_len] = '\0';
- }
-
- if (hits == 0 && available <= 1) {
- flb_debug("[in_serial] no separator found, no more space");
- ctx->buf_len = 0;
- ret = 0;
-
- break;
- }
- }
- else if (ctx->format == FLB_SERIAL_FORMAT_JSON) {
- /* JSON Format handler */
- char *pack;
- int out_size;
-
- ret = flb_pack_json_state(ctx->buf_data, ctx->buf_len,
- &pack, &out_size, &ctx->pack_state);
- if (ret == FLB_ERR_JSON_PART) {
- flb_debug("[in_serial] JSON incomplete, waiting for more data...");
-
- ret = 0;
-
- break;
- }
- else if (ret == FLB_ERR_JSON_INVAL) {
- flb_debug("[in_serial] invalid JSON message, skipping");
- flb_pack_state_reset(&ctx->pack_state);
- flb_pack_state_init(&ctx->pack_state);
- ctx->pack_state.multiple = FLB_TRUE;
-
- ret = -1;
-
- break;
- }
-
- /*
- * Given the Tokens used for the packaged message, append
- * the records and then adjust buffer.
- */
- process_pack(ctx, pack, out_size);
- flb_free(pack);
-
- consume_bytes(ctx->buf_data, ctx->pack_state.last_byte, ctx->buf_len);
- ctx->buf_len -= ctx->pack_state.last_byte;
- ctx->buf_data[ctx->buf_len] = '\0';
-
- flb_pack_state_reset(&ctx->pack_state);
- flb_pack_state_init(&ctx->pack_state);
- ctx->pack_state.multiple = FLB_TRUE;
- }
- else {
- /* Process and enqueue the received line */
- process_line(ctx->buf_data, ctx->buf_len, ctx);
- ctx->buf_len = 0;
- }
- }
-
- if (ctx->log_encoder->output_length > 0) {
- flb_input_log_append(in, NULL, 0,
- ctx->log_encoder->output_buffer,
- ctx->log_encoder->output_length);
- }
-
- flb_log_event_encoder_reset(ctx->log_encoder);
-
- return ret;
-}
-
-/* Cleanup serial input */
-static int cb_serial_exit(void *in_context, struct flb_config *config)
-{
- struct flb_in_serial_config *ctx = in_context;
-
- flb_trace("[in_serial] Restoring original termios...");
- tcsetattr(ctx->fd, TCSANOW, &ctx->tio_orig);
-
- if (ctx->log_encoder != NULL) {
- flb_log_event_encoder_destroy(ctx->log_encoder);
- }
-
- flb_pack_state_reset(&ctx->pack_state);
- flb_free(ctx);
-
- return 0;
-}
-
-/* Init serial input */
-static int cb_serial_init(struct flb_input_instance *in,
- struct flb_config *config, void *data)
-{
- int fd;
- int ret;
- int br;
- struct flb_in_serial_config *ctx;
- (void) data;
-
- ctx = flb_calloc(1, sizeof(struct flb_in_serial_config));
- if (!ctx) {
- flb_errno();
- return -1;
- }
- ctx->format = FLB_SERIAL_FORMAT_NONE;
-
- ctx->log_encoder = flb_log_event_encoder_create(FLB_LOG_EVENT_FORMAT_DEFAULT);
-
- if (ctx->log_encoder == NULL) {
- flb_plg_error(in, "could not initialize event encoder");
- flb_free(ctx);
-
- return -1;
- }
-
- if (!serial_config_read(ctx, in)) {
- flb_log_event_encoder_destroy(ctx->log_encoder);
- flb_free(ctx);
- return -1;
- }
-
- /* Initialize JSON pack state */
- if (ctx->format == FLB_SERIAL_FORMAT_JSON) {
- flb_pack_state_init(&ctx->pack_state);
- ctx->pack_state.multiple = FLB_TRUE;
- }
-
- /* Input instance */
- ctx->i_ins = in;
-
- /* set context */
- flb_input_set_context(in, ctx);
-
- /* open device */
- fd = open(ctx->file, O_RDWR | O_NOCTTY | O_NONBLOCK);
- if (fd == -1) {
- perror("open");
- flb_error("[in_serial] Could not open serial port device");
- flb_log_event_encoder_destroy(ctx->log_encoder);
- flb_free(ctx);
- return -1;
- }
- ctx->fd = fd;
-
- /* Store original settings */
- tcgetattr(fd, &ctx->tio_orig);
-
- /* Reset for new... */
- memset(&ctx->tio, 0, sizeof(ctx->tio));
- tcgetattr(fd, &ctx->tio);
-
- br = atoi(ctx->bitrate);
- cfsetospeed(&ctx->tio, (speed_t) flb_serial_speed(br));
- cfsetispeed(&ctx->tio, (speed_t) flb_serial_speed(br));
-
- /* Settings */
- ctx->tio.c_cflag &= ~PARENB; /* 8N1 */
- ctx->tio.c_cflag &= ~CSTOPB;
- ctx->tio.c_cflag &= ~CSIZE;
- ctx->tio.c_cflag |= CS8;
- ctx->tio.c_cflag &= ~CRTSCTS; /* No flow control */
- ctx->tio.c_cc[VMIN] = ctx->min_bytes; /* Min number of bytes to read */
- ctx->tio.c_cflag |= CREAD | CLOCAL; /* Enable READ & ign ctrl lines */
-
- tcflush(fd, TCIFLUSH);
- tcsetattr(fd, TCSANOW, &ctx->tio);
-
-#if __linux__
- /* Set our collector based on a file descriptor event */
- ret = flb_input_set_collector_event(in,
- cb_serial_collect,
- ctx->fd,
- config);
-#else
- /* Set our collector based on a timer event */
- ret = flb_input_set_collector_time(in,
- cb_serial_collect,
- IN_SERIAL_COLLECT_SEC,
- IN_SERIAL_COLLECT_NSEC,
- config);
-#endif
-
- if (ret == -1) {
- flb_log_event_encoder_destroy(ctx->log_encoder);
- return -1;
- }
-
- return 0;
-}
-
-static struct flb_config_map config_map[] = {
- {
- FLB_CONFIG_MAP_STR, "file", (char *)NULL,
- 0, FLB_TRUE, offsetof(struct flb_in_serial_config, file),
- "Set the serial character device file name"
- },
- {
- FLB_CONFIG_MAP_STR, "bitrate", (char *)NULL,
- 0, FLB_TRUE, offsetof(struct flb_in_serial_config, bitrate),
- "Set the serial bitrate (baudrate)"
- },
- {
- FLB_CONFIG_MAP_STR, "separator", (char *)NULL,
- 0, FLB_TRUE, offsetof(struct flb_in_serial_config, separator),
- "Set the record separator"
- },
- {
- FLB_CONFIG_MAP_STR, "format", (char *)NULL,
- 0, FLB_TRUE, offsetof(struct flb_in_serial_config, format_str),
- "Set the serial format: json or none"
- },
- {
- FLB_CONFIG_MAP_INT, "min_bytes", "0",
- 0, FLB_TRUE, offsetof(struct flb_in_serial_config, min_bytes),
- "Set the serial minimum bytes"
- },
- /* EOF */
- {0}
-};
-
-/* Plugin reference */
-struct flb_input_plugin in_serial_plugin = {
- .name = "serial",
- .description = "Serial input",
- .cb_init = cb_serial_init,
- .cb_pre_run = NULL,
- .cb_collect = cb_serial_collect,
- .cb_flush_buf = NULL,
- .cb_exit = cb_serial_exit,
- .config_map = config_map,
-};
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