Merging upstream version 1.44.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 155 insertions, 0 deletions

diff --git a/fluent-bit/plugins/in_udp/udp_config.c b/fluent-bit/plugins/in_udp/udp_config.c
new file mode 100644
index 000000000..ad2995490
--- /dev/null
+++ b/fluent-bit/plugins/in_udp/udp_config.c
@@ -0,0 +1,155 @@
+/* -*- 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_unescape.h>
+
+#include "udp.h"
+#include "udp_conn.h"
+#include "udp_config.h"
+
+#include <stdlib.h>
+
+struct flb_in_udp_config *udp_config_init(struct flb_input_instance *ins)
+{
+    int ret;
+    int len;
+    char port[16];
+    char *out;
+    struct flb_in_udp_config *ctx;
+
+    /* Allocate plugin context */
+    ctx = flb_calloc(1, sizeof(struct flb_in_udp_config));
+    if (!ctx) {
+        flb_errno();
+        return NULL;
+    }
+    ctx->ins = ins;
+    ctx->format = FLB_UDP_FMT_JSON;
+
+    /* Load the config map */
+    ret = flb_input_config_map_set(ins, (void *)ctx);
+    if (ret == -1) {
+        flb_plg_error(ins, "unable to load configuration");
+        flb_free(ctx);
+        return NULL;
+    }
+
+    /* Data format (expected payload) */
+    if (ctx->format_name) {
+        if (strcasecmp(ctx->format_name, "json") == 0) {
+            ctx->format = FLB_UDP_FMT_JSON;
+        }
+        else if (strcasecmp(ctx->format_name, "none") == 0) {
+            ctx->format = FLB_UDP_FMT_NONE;
+        }
+        else {
+            flb_plg_error(ctx->ins, "unrecognized format value '%s'", ctx->format_name);
+            flb_free(ctx);
+            return NULL;
+        }
+    }
+
+    /* String separator used to split records when using 'format none' */
+    if (ctx->raw_separator) {
+        len = strlen(ctx->raw_separator);
+        out = flb_malloc(len + 1);
+        if (!out) {
+            flb_errno();
+            flb_free(ctx);
+            return NULL;
+        }
+        ret = flb_unescape_string(ctx->raw_separator, len, &out);
+        if (ret <= 0) {
+            flb_plg_error(ctx->ins, "invalid separator");
+            flb_free(out);
+            flb_free(ctx);
+            return NULL;
+        }
+
+        ctx->separator = flb_sds_create_len(out, ret);
+        if (!ctx->separator) {
+            flb_free(out);
+            flb_free(ctx);
+            return NULL;
+        }
+        flb_free(out);
+    }
+    if (!ctx->separator) {
+        ctx->separator = flb_sds_create_len("\n", 1);
+    }
+
+    /* Listen interface (if not set, defaults to 0.0.0.0:5170) */
+    flb_input_net_default_listener("0.0.0.0", 5170, ins);
+    ctx->listen = ins->host.listen;
+    snprintf(port, sizeof(port) - 1, "%d", ins->host.port);
+    ctx->port = flb_strdup(port);
+
+    /* Chunk size */
+    if (ctx->chunk_size_str) {
+        /* Convert KB unit to Bytes */
+        ctx->chunk_size  = (atoi(ctx->chunk_size_str) * 1024);
+    } else {
+        ctx->chunk_size  = atoi(FLB_IN_UDP_CHUNK);
+    }
+
+    /* Buffer size */
+    if (!ctx->buffer_size_str) {
+        ctx->buffer_size = ctx->chunk_size;
+    }
+    else {
+        /* Convert KB unit to Bytes */
+        ctx->buffer_size  = (atoi(ctx->buffer_size_str) * 1024);
+    }
+
+    ctx->log_encoder = flb_log_event_encoder_create(FLB_LOG_EVENT_FORMAT_DEFAULT);
+
+    if (ctx->log_encoder == NULL) {
+        flb_plg_error(ctx->ins, "could not initialize event encoder");
+        udp_config_destroy(ctx);
+
+        ctx = NULL;
+    }
+
+    return ctx;
+}
+
+int udp_config_destroy(struct flb_in_udp_config *ctx)
+{
+    if (ctx->log_encoder != NULL) {
+        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->downstream != NULL) {
+        flb_downstream_destroy(ctx->downstream);
+    }
+
+    flb_sds_destroy(ctx->separator);
+    flb_free(ctx->port);
+    flb_free(ctx);
+
+    return 0;
+}