Adding upstream version 1.44.3.upstream/1.44.3upstream

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

3 files changed, 466 insertions, 0 deletions

diff --git a/fluent-bit/plugins/in_netif/CMakeLists.txt b/fluent-bit/plugins/in_netif/CMakeLists.txt
new file mode 100644
index 00000000..952e7b3c
--- /dev/null
+++ b/fluent-bit/plugins/in_netif/CMakeLists.txt
@@ -0,0 +1,4 @@
+set(src
+  in_netif.c)
+
+FLB_PLUGIN(in_netif "${src}" "")
diff --git a/fluent-bit/plugins/in_netif/in_netif.c b/fluent-bit/plugins/in_netif/in_netif.c
new file mode 100644
index 00000000..f82c685a
--- /dev/null
+++ b/fluent-bit/plugins/in_netif/in_netif.c
@@ -0,0 +1,392 @@
+/* -*- 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_utils.h>
+#include <fluent-bit/flb_pack.h>
+
+#include <stdio.h>
+#include "in_netif.h"
+
+struct entry_define entry_name_linux[] = {
+    {"rx.bytes",       FLB_TRUE},
+    {"rx.packets",     FLB_TRUE},
+    {"rx.errors",      FLB_TRUE},
+    {"rx.drop",        FLB_FALSE},
+    {"rx.fifo",        FLB_FALSE},
+    {"rx.frame",       FLB_FALSE},
+    {"rx.compressed",  FLB_FALSE},
+    {"rx.multicast",   FLB_FALSE},
+    {"tx.bytes",       FLB_TRUE},
+    {"tx.packets",     FLB_TRUE},
+    {"tx.errors",      FLB_TRUE},
+    {"tx.drop",        FLB_FALSE},
+    {"tx.fifo",        FLB_FALSE},
+    {"tx.collisions",  FLB_FALSE},
+    {"tx.carrier",     FLB_FALSE},
+    {"tx.compressepd", FLB_FALSE}
+};
+
+static int config_destroy(struct flb_in_netif_config *ctx)
+{
+    if (ctx->log_encoder != NULL) {
+        flb_log_event_encoder_destroy(ctx->log_encoder);
+    }
+
+    flb_free(ctx->entry);
+    flb_free(ctx);
+    return 0;
+}
+
+
+static int in_netif_exit(void *data, struct flb_config *config)
+{
+    (void) *config;
+    struct flb_in_netif_config *ctx = data;
+
+    /* Destroy context */
+    config_destroy(ctx);
+
+    return 0;
+}
+
+static int init_entry_linux(struct flb_in_netif_config *ctx)
+{
+    int i;
+
+    ctx->entry_len = sizeof(entry_name_linux) / sizeof(struct entry_define);
+    ctx->entry = flb_malloc(sizeof(struct netif_entry) * ctx->entry_len);
+    if (!ctx->entry) {
+        flb_errno();
+        return -1;
+    }
+
+    for(i = 0; i < ctx->entry_len; i++) {
+        ctx->entry[i].name     = entry_name_linux[i].name;
+        ctx->entry[i].name_len = strlen(entry_name_linux[i].name);
+        ctx->entry[i].prev     = 0;
+        ctx->entry[i].now      = 0;
+        if (ctx->verbose){
+            ctx->entry[i].checked = FLB_TRUE;
+        }
+        else {
+            ctx->entry[i].checked = entry_name_linux[i].checked;
+        }
+        if (ctx->entry[i].checked) {
+            ctx->map_num++;
+        }
+    }
+    return 0;
+}
+
+static int configure(struct flb_in_netif_config *ctx,
+                     struct flb_input_instance *in)
+{
+    int ret;
+    ctx->map_num = 0;
+
+    /* Load the config map */
+    ret = flb_input_config_map_set(in, (void *)ctx);
+    if (ret == -1) {
+        flb_plg_error(in, "unable to load configuration");
+        return -1;
+    }
+
+    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);
+    }
+
+    if (ctx->interface == NULL) {
+        flb_plg_error(ctx->ins, "'interface' is not set");
+        return -1;
+    }
+    ctx->interface_len = strlen(ctx->interface);
+
+    ctx->first_snapshot = FLB_TRUE;    /* assign first_snapshot with FLB_TRUE */
+
+    return init_entry_linux(ctx);
+}
+
+static inline int is_specific_interface(struct flb_in_netif_config *ctx,
+                                        char* interface)
+{
+    if (ctx->interface != NULL &&
+        !strncmp(ctx->interface, interface, ctx->interface_len)) {
+        return FLB_TRUE;
+    }
+    return FLB_FALSE;
+}
+
+static int parse_proc_line(char *line,
+                           struct flb_in_netif_config *ctx)
+{
+    struct mk_list *head = NULL;
+    struct mk_list *split = NULL;
+    struct flb_split_entry *sentry = NULL;
+
+    int i = 0;
+    int entry_num;
+
+    split = flb_utils_split(line, ' ', 256);
+    entry_num = mk_list_size(split);
+    if (entry_num != ctx->entry_len + 1) {
+        flb_utils_split_free(split);
+        return -1;
+    }
+
+    mk_list_foreach(head, split) {
+        sentry = mk_list_entry(head, struct flb_split_entry ,_head);
+        if (i==0) {
+            /* interface name */
+            if( is_specific_interface(ctx, sentry->value)){
+                i++;
+                continue;
+            }
+            else {
+                /* skip this line */
+                flb_utils_split_free(split);
+                return -1;
+            }
+        }
+        ctx->entry[i-1].now = strtoul(sentry->value ,NULL ,10);
+        i++;
+    }
+
+    flb_utils_split_free(split);
+
+    return 0;
+}
+
+static inline uint64_t calc_diff(struct netif_entry *entry)
+{
+    if (entry->prev <= entry->now) {
+        return entry->now - entry->prev;
+    }
+    else {
+        return entry->now + (UINT64_MAX - entry->prev);
+    }
+}
+
+#define LINE_LEN 256
+static int read_proc_file_linux(struct flb_in_netif_config *ctx)
+{
+    FILE *fp = NULL;
+    char line[LINE_LEN] = {0};
+    int interface_found = FLB_FALSE;
+
+    fp = fopen("/proc/net/dev", "r");
+    if (fp == NULL) {
+        flb_errno();
+        flb_plg_error(ctx->ins, "cannot open /proc/net/dev");
+        return -1;
+    }
+    while(fgets(line, LINE_LEN-1, fp) != NULL){
+        if(parse_proc_line(line, ctx) == 0) {
+            interface_found = FLB_TRUE;
+        }
+    }
+    fclose(fp);
+    if (interface_found != FLB_TRUE) {
+        return -1;
+    }
+    return 0;
+}
+
+static int in_netif_collect_linux(struct flb_input_instance *i_ins,
+                           struct flb_config *config, void *in_context)
+{
+    struct flb_in_netif_config *ctx = in_context;
+    char key_name[LINE_LEN] = {0};
+    int  key_len;
+    int i;
+    int entry_len = ctx->entry_len;
+    int ret;
+
+    ret = 0;
+
+    read_proc_file_linux(ctx);
+
+    if (ctx->first_snapshot == FLB_TRUE) {
+        /* if in_netif are called for the first time, assign prev with now */
+        for (i = 0; i < entry_len; i++) {
+            ctx->entry[i].prev = ctx->entry[i].now;
+        }
+
+        /* assign first_snapshot with FLB_FALSE */
+        ctx->first_snapshot = FLB_FALSE;
+    }
+    else {
+        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);
+        }
+
+        for (i = 0 ;
+            i < entry_len &&
+            ret == FLB_EVENT_ENCODER_SUCCESS ;
+            i++) {
+            if (ctx->entry[i].checked) {
+                key_len = ctx->interface_len + ctx->entry[i].name_len + 1/* '.' */;
+
+                snprintf(key_name, key_len + 1 /* add null character */,
+                         "%s.%s", ctx->interface, ctx->entry[i].name);
+
+                ret = flb_log_event_encoder_append_body_values(
+                        ctx->log_encoder,
+                        FLB_LOG_EVENT_CSTRING_VALUE(key_name),
+                        FLB_LOG_EVENT_UINT64_VALUE(calc_diff(&ctx->entry[i])));
+
+                ctx->entry[i].prev = ctx->entry[i].now;
+            }
+        }
+
+        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(i_ins, NULL, 0,
+                                 ctx->log_encoder->output_buffer,
+                                 ctx->log_encoder->output_length);
+            ret = 0;
+        }
+        else {
+            flb_plg_error(i_ins, "log event encoding error : %d", ret);
+
+            ret = -1;
+        }
+
+        flb_log_event_encoder_reset(ctx->log_encoder);
+    }
+
+    return ret;
+}
+
+static int in_netif_collect(struct flb_input_instance *i_ins,
+                            struct flb_config *config, void *in_context)
+{
+    return in_netif_collect_linux(i_ins, config, in_context);
+}
+
+static int in_netif_init(struct flb_input_instance *in,
+                         struct flb_config *config, void *data)
+{
+    int ret;
+
+    struct flb_in_netif_config *ctx = NULL;
+    (void) data;
+
+    /* Allocate space for the configuration */
+    ctx = flb_calloc(1, sizeof(struct flb_in_netif_config));
+    if (!ctx) {
+        flb_errno();
+        return -1;
+    }
+    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");
+        config_destroy(ctx);
+
+        return -1;
+    }
+
+    if (configure(ctx, in) < 0) {
+        config_destroy(ctx);
+        return -1;
+    }
+
+    /* Testing interface */
+    if (ctx->test_at_init == FLB_TRUE) {
+        /* Try to read procfs */
+        ret = read_proc_file_linux(ctx);
+        if (ret < 0) {
+            flb_plg_error(in, "%s: init test failed", ctx->interface);
+            config_destroy(ctx);
+            return -1;
+        }
+        flb_plg_info(in, "%s: init test passed", ctx->interface);
+    }
+
+    /* Set the context */
+    flb_input_set_context(in, ctx);
+
+    /* Set our collector based on time */
+    ret = flb_input_set_collector_time(in,
+                                       in_netif_collect,
+                                       ctx->interval_sec,
+                                       ctx->interval_nsec,
+                                       config);
+    if (ret == -1) {
+        flb_plg_error(ctx->ins, "Could not set collector for Proc input plugin");
+        config_destroy(ctx);
+        return -1;
+    }
+
+    return 0;
+}
+
+static struct flb_config_map config_map[] = {
+    {
+      FLB_CONFIG_MAP_STR, "interface", (char *)NULL,
+      0, FLB_TRUE, offsetof(struct flb_in_netif_config, interface),
+      "Set the interface, eg: eth0 or enp1s0"
+    },
+    {
+      FLB_CONFIG_MAP_INT, "interval_sec", DEFAULT_INTERVAL_SEC,
+      0, FLB_TRUE, offsetof(struct flb_in_netif_config, interval_sec),
+      "Set the collector interval"
+    },
+    {
+      FLB_CONFIG_MAP_INT, "interval_nsec", DEFAULT_INTERVAL_NSEC,
+      0, FLB_TRUE, offsetof(struct flb_in_netif_config, interval_nsec),
+      "Set the collector interval (nanoseconds)"
+    },
+    {
+      FLB_CONFIG_MAP_BOOL, "verbose", "false",
+      0, FLB_TRUE, offsetof(struct flb_in_netif_config, verbose),
+      "Enable verbosity"
+    },
+    {
+      FLB_CONFIG_MAP_BOOL, "test_at_init", "false",
+      0, FLB_TRUE, offsetof(struct flb_in_netif_config, test_at_init),
+      "Testing interface at initialization"
+    },
+    /* EOF */
+    {0}
+};
+
+/* Plugin reference */
+struct flb_input_plugin in_netif_plugin = {
+    .name         = "netif",
+    .description  = "Network Interface Usage",
+    .cb_init      = in_netif_init,
+    .cb_pre_run   = NULL,
+    .cb_collect   = in_netif_collect,
+    .cb_flush_buf = NULL,
+    .cb_exit      = in_netif_exit,
+    .config_map   = config_map,
+    .flags        = 0,
+};
diff --git a/fluent-bit/plugins/in_netif/in_netif.h b/fluent-bit/plugins/in_netif/in_netif.h
new file mode 100644
index 00000000..e571ec1f
--- /dev/null
+++ b/fluent-bit/plugins/in_netif/in_netif.h
@@ -0,0 +1,70 @@
+/* -*- 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.
+ */
+
+#ifndef FLB_IN_NETIF_H
+#define FLB_IN_NETIF_H
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <fluent-bit/flb_input.h>
+#include <fluent-bit/flb_log_event_encoder.h>
+#include <msgpack.h>
+
+#define DEFAULT_INTERVAL_SEC  "1"
+#define DEFAULT_INTERVAL_NSEC "0"
+
+#define FLB_IN_NETIF_NAME "in_netif"
+
+struct entry_define
+{
+    char  *name;
+    int   checked;
+};
+
+struct netif_entry {
+    int   checked;
+
+    char  *name;
+    int   name_len;
+
+    uint64_t prev;
+    uint64_t now;
+};
+
+struct flb_in_netif_config {
+    int interval_sec;
+    int interval_nsec;
+
+    flb_sds_t interface;
+    int       interface_len;
+    int  test_at_init;
+
+    int  verbose;
+    int  first_snapshot;   /* a feild to indicate whethor or not this is the first collect */
+
+    struct netif_entry *entry;
+    int entry_len;
+
+    int map_num;
+    struct flb_input_instance *ins;
+    struct flb_log_event_encoder *log_encoder;
+};
+
+#endif /*FLB_IN_NETIF_H*/