Merging upstream version 1.44.3.

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

2 files changed, 249 insertions, 0 deletions

diff --git a/fluent-bit/plugins/in_random/CMakeLists.txt b/fluent-bit/plugins/in_random/CMakeLists.txt
new file mode 100644
index 000000000..2cb59e83d
--- /dev/null
+++ b/fluent-bit/plugins/in_random/CMakeLists.txt
@@ -0,0 +1,4 @@
+set(src
+  random.c)
+
+FLB_PLUGIN(in_random "${src}" "")
diff --git a/fluent-bit/plugins/in_random/random.c b/fluent-bit/plugins/in_random/random.c
new file mode 100644
index 000000000..ab6e59ffd
--- /dev/null
+++ b/fluent-bit/plugins/in_random/random.c
@@ -0,0 +1,245 @@
+/* -*- 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_config.h>
+#include <fluent-bit/flb_error.h>
+#include <fluent-bit/flb_pack.h>
+#include <fluent-bit/flb_random.h>
+#include <fluent-bit/flb_log_event_encoder.h>
+#include <msgpack.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define DEFAULT_INTERVAL_SEC  "1"
+#define DEFAULT_INTERVAL_NSEC "0"
+
+struct flb_in_random_config {
+    /* Config properties */
+    int              interval_sec;
+    int              interval_nsec;
+    int              samples;
+
+    /* Internal */
+    int              samples_count;
+    int              coll_fd;
+
+    struct flb_input_instance *ins;
+    struct flb_log_event_encoder *log_encoder;
+};
+
+/* cb_collect callback */
+static int in_random_collect(struct flb_input_instance *ins,
+                             struct flb_config *config, void *in_context)
+{
+    int ret;
+    uint64_t val;
+    struct flb_in_random_config *ctx = in_context;
+
+    if (ctx->samples == 0) {
+        return -1;
+    }
+
+    if (ctx->samples > 0 && (ctx->samples_count >= ctx->samples)) {
+        return -1;
+    }
+
+    if (flb_random_bytes((unsigned char *) &val, sizeof(uint64_t))) {
+        val = time(NULL);
+    }
+
+    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("rand_value"),
+                FLB_LOG_EVENT_UINT64_VALUE(val));
+    }
+
+    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
+        ret = flb_log_event_encoder_commit_record(ctx->log_encoder);
+    }
+
+    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
+        flb_input_log_append(ctx->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;
+    }
+
+    flb_log_event_encoder_reset(ctx->log_encoder);
+
+    ctx->samples_count++;
+
+    return 0;
+}
+
+/* Set plugin configuration */
+static int in_random_config_read(struct flb_in_random_config *ctx,
+                                 struct flb_input_instance *in)
+{
+    int ret;
+    /* Load the config map */
+    ret = flb_input_config_map_set(in, (void *)ctx);
+    if (ret == -1) {
+        return -1;
+    }
+    
+    /* interval settings */
+    if (ctx->interval_sec <= 0 && ctx->interval_nsec <= 0) {
+        /* Illegal settings. Override them. */
+        ctx->interval_sec = atoi(DEFAULT_INTERVAL_SEC);
+        ctx->interval_nsec = atoi(DEFAULT_INTERVAL_NSEC);
+    }
+
+
+    flb_plg_debug(ctx->ins, "interval_sec=%d interval_nsec=%d",
+                  ctx->interval_sec, ctx->interval_nsec);
+
+    return 0;
+}
+
+/* Initialize plugin */
+static int in_random_init(struct flb_input_instance *in,
+                        struct flb_config *config, void *data)
+{
+    int ret = -1;
+    struct flb_in_random_config *ctx = NULL;
+
+    /* Allocate space for the configuration */
+    ctx = flb_calloc(1, sizeof(struct flb_in_random_config));
+    if (!ctx) {
+        return -1;
+    }
+    ctx->samples_count = 0;
+    ctx->ins = in;
+
+    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;
+    }
+
+    /* Initialize head config */
+    ret = in_random_config_read(ctx, in);
+    if (ret < 0) {
+        flb_free(ctx);
+        return -1;
+    }
+
+    flb_input_set_context(in, ctx);
+    ret = flb_input_set_collector_time(in,
+                                       in_random_collect,
+                                       ctx->interval_sec,
+                                       ctx->interval_nsec, config);
+    if (ret < 0) {
+        flb_plg_error(ctx->ins, "could not set collector for head input plugin");
+        flb_free(ctx);
+        return -1;
+    }
+    ctx->coll_fd = ret;
+    return 0;
+}
+
+static void in_random_pause(void *data, struct flb_config *config)
+{
+    struct flb_in_random_config *ctx = data;
+
+    flb_input_collector_pause(ctx->coll_fd, ctx->ins);
+
+}
+
+static void in_random_resume(void *data, struct flb_config *config)
+{
+    struct flb_in_random_config *ctx = data;
+
+    flb_input_collector_resume(ctx->coll_fd, ctx->ins);
+}
+
+static int in_random_exit(void *data, struct flb_config *config)
+{
+    struct flb_in_random_config *ctx = data;
+    (void) *config;
+
+    if (!ctx) {
+        return 0;
+    }
+
+    if (ctx->log_encoder != NULL) {
+        flb_log_event_encoder_destroy(ctx->log_encoder);
+    }
+
+    flb_free(ctx);
+    return 0;
+}
+
+
+static struct flb_config_map config_map[] = {
+    // samples
+    // interval_sec
+    // interval_nsec
+    {
+     FLB_CONFIG_MAP_INT, "samples", "-1",
+     0, FLB_TRUE, offsetof(struct flb_in_random_config, samples),
+     "Number of samples to send, -1 for infinite"
+    },
+    {
+      FLB_CONFIG_MAP_INT, "interval_sec", DEFAULT_INTERVAL_SEC,
+      0, FLB_TRUE, offsetof(struct flb_in_random_config, interval_sec),
+      "Set the collector interval"
+    },
+    {
+      FLB_CONFIG_MAP_INT, "interval_nsec", DEFAULT_INTERVAL_NSEC,
+      0, FLB_TRUE, offsetof(struct flb_in_random_config, interval_nsec),
+      "Set the collector interval (sub seconds)"
+    },
+    /* EOF */
+    {0}
+    
+};
+
+struct flb_input_plugin in_random_plugin = {
+    .name         = "random",
+    .description  = "Random",
+    .cb_init      = in_random_init,
+    .cb_pre_run   = NULL,
+    .cb_collect   = in_random_collect,
+    .cb_flush_buf = NULL,
+    .cb_pause     = in_random_pause,
+    .cb_resume    = in_random_resume,
+    .cb_exit      = in_random_exit,
+    .config_map   = config_map
+};