Adding upstream version 1.44.3.upstream/1.44.3upstream

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

1 files changed, 2094 insertions, 0 deletions

diff --git a/collectors/freeipmi.plugin/freeipmi_plugin.c b/collectors/freeipmi.plugin/freeipmi_plugin.c
new file mode 100644
index 00000000..6ec9b698
--- /dev/null
+++ b/collectors/freeipmi.plugin/freeipmi_plugin.c
@@ -0,0 +1,2094 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+/*
+ *  netdata freeipmi.plugin
+ *  Copyright (C) 2023 Netdata Inc.
+ *  GPL v3+
+ *
+ *  Based on:
+ *  ipmimonitoring-sensors.c,v 1.51 2016/11/02 23:46:24 chu11 Exp
+ *  ipmimonitoring-sel.c,v 1.51 2016/11/02 23:46:24 chu11 Exp
+ *
+ *  Copyright (C) 2007-2015 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2006-2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Albert Chu <chu11@llnl.gov>
+ *  UCRL-CODE-222073
+ */
+
+// ----------------------------------------------------------------------------
+// BEGIN NETDATA CODE
+
+// #define NETDATA_TIMING_REPORT 1
+#include "libnetdata/libnetdata.h"
+#include "libnetdata/required_dummies.h"
+
+#define FREEIPMI_GLOBAL_FUNCTION_SENSORS() do { \
+        fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"ipmi-sensors\" %d \"%s\"\n", 5, "Displays current sensor state and readings"); \
+    } while(0)
+
+// component names, based on our patterns
+#define NETDATA_SENSOR_COMPONENT_MEMORY_MODULE     "Memory Module"
+#define NETDATA_SENSOR_COMPONENT_MEMORY            "Memory"
+#define NETDATA_SENSOR_COMPONENT_PROCESSOR         "Processor"
+#define NETDATA_SENSOR_COMPONENT_IPU               "Image Processor"
+#define NETDATA_SENSOR_COMPONENT_STORAGE           "Storage"
+#define NETDATA_SENSOR_COMPONENT_MOTHERBOARD       "Motherboard"
+#define NETDATA_SENSOR_COMPONENT_NETWORK           "Network"
+#define NETDATA_SENSOR_COMPONENT_POWER_SUPPLY      "Power Supply"
+#define NETDATA_SENSOR_COMPONENT_SYSTEM            "System"
+#define NETDATA_SENSOR_COMPONENT_PERIPHERAL        "Peripheral"
+
+// netdata plugin defaults
+#define SENSORS_DICT_KEY_SIZE 2048                  // the max size of the key for the dictionary of sensors
+#define SPEED_TEST_ITERATIONS 5                     // how many times to repeat data collection to decide latency
+#define IPMI_SENSORS_DASHBOARD_PRIORITY 90000       // the priority of the sensors charts on the dashboard
+#define IPMI_SEL_DASHBOARD_PRIORITY 99000           // the priority of the SEL events chart on the dashboard
+#define IPMI_SENSORS_MIN_UPDATE_EVERY 5             // the minimum data collection frequency for sensors
+#define IPMI_SEL_MIN_UPDATE_EVERY 30                // the minimum data collection frequency for SEL events
+#define IPMI_ENABLE_SEL_BY_DEFAULT true             // true/false, to enable/disable SEL by default
+#define IPMI_RESTART_EVERY_SECONDS 14400            // restart the plugin every this many seconds
+                                                    // this is to prevent possible bugs/leaks in ipmi libraries
+#define IPMI_RESTART_IF_SENSORS_DONT_ITERATE_EVERY_SECONDS (10 * 60) // stale data collection detection time
+
+// forward definition of functions and structures
+struct netdata_ipmi_state;
+static void netdata_update_ipmi_sensor_reading(
+        int record_id
+        , int sensor_number
+        , int sensor_type
+        , int sensor_state
+        , int sensor_units
+        , int sensor_reading_type
+        , char *sensor_name
+        , void *sensor_reading
+        , int event_reading_type_code
+        , int sensor_bitmask_type
+        , int sensor_bitmask
+        , char **sensor_bitmask_strings
+        , struct netdata_ipmi_state *state
+);
+static void netdata_update_ipmi_sel_events_count(struct netdata_ipmi_state *state, uint32_t events);
+
+// END NETDATA CODE
+// ----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include <ipmi_monitoring.h>
+#include <ipmi_monitoring_bitmasks.h>
+#include <ipmi_monitoring_offsets.h>
+
+/* Communication Configuration - Initialize accordingly */
+
+static netdata_mutex_t stdout_mutex = NETDATA_MUTEX_INITIALIZER;
+static bool function_plugin_should_exit = false;
+
+int update_every = IPMI_SENSORS_MIN_UPDATE_EVERY; // this is the minimum update frequency
+int update_every_sel = IPMI_SEL_MIN_UPDATE_EVERY; // this is the minimum update frequency for SEL events
+
+/* Hostname, NULL for In-band communication, non-null for a hostname */
+char *hostname = NULL;
+
+/* In-band Communication Configuration */
+int driver_type = -1;               // IPMI_MONITORING_DRIVER_TYPE_KCS, etc. or -1 for default
+int disable_auto_probe = 0;         /* probe for in-band device */
+unsigned int driver_address = 0;    /* not used if probing */
+unsigned int register_spacing = 0;  /* not used if probing */
+char *driver_device = NULL;         /* not used if probing */
+
+/* Out-of-band Communication Configuration */
+int protocol_version = -1;      // IPMI_MONITORING_PROTOCOL_VERSION_1_5, etc. or -1 for default
+char *username = "";
+char *password = "";
+unsigned char *k_g = NULL;
+unsigned int k_g_len = 0;
+int privilege_level = -1;       // IPMI_MONITORING_PRIVILEGE_LEVEL_USER, etc. or -1 for default
+int authentication_type = -1;   // IPMI_MONITORING_AUTHENTICATION_TYPE_MD5, etc. or -1 for default
+int cipher_suite_id = -1;       /* 0 or -1 for default */
+int session_timeout = 0;        /* 0 for default */
+int retransmission_timeout = 0; /* 0 for default */
+
+/* Workarounds - specify workaround flags if necessary */
+unsigned int workaround_flags = 0;
+
+/* Set to an appropriate alternate if desired */
+char *sdr_cache_directory = "/tmp";
+char *sdr_sensors_cache_format = ".netdata-freeipmi-sensors-%H-on-%L.sdr";
+char *sdr_sel_cache_format = ".netdata-freeipmi-sel-%H-on-%L.sdr";
+char *sensor_config_file = NULL;
+char *sel_config_file = NULL;
+
+// controlled via command line options
+unsigned int global_sel_flags = IPMI_MONITORING_SEL_FLAGS_REREAD_SDR_CACHE;
+unsigned int global_sensor_reading_flags = IPMI_MONITORING_SENSOR_READING_FLAGS_DISCRETE_READING|IPMI_MONITORING_SENSOR_READING_FLAGS_REREAD_SDR_CACHE;
+bool remove_reread_sdr_after_first_use = true;
+
+/* Initialization flags
+ *
+ * Most commonly bitwise OR IPMI_MONITORING_FLAGS_DEBUG and/or
+ * IPMI_MONITORING_FLAGS_DEBUG_IPMI_PACKETS for extra debugging
+ * information.
+ */
+unsigned int ipmimonitoring_init_flags = 0;
+
+// ----------------------------------------------------------------------------
+// functions common to sensors and SEL
+
+static void initialize_ipmi_config (struct ipmi_monitoring_ipmi_config *ipmi_config) {
+    fatal_assert(ipmi_config);
+
+    ipmi_config->driver_type = driver_type;
+    ipmi_config->disable_auto_probe = disable_auto_probe;
+    ipmi_config->driver_address = driver_address;
+    ipmi_config->register_spacing = register_spacing;
+    ipmi_config->driver_device = driver_device;
+
+    ipmi_config->protocol_version = protocol_version;
+    ipmi_config->username = username;
+    ipmi_config->password = password;
+    ipmi_config->k_g = k_g;
+    ipmi_config->k_g_len = k_g_len;
+    ipmi_config->privilege_level = privilege_level;
+    ipmi_config->authentication_type = authentication_type;
+    ipmi_config->cipher_suite_id = cipher_suite_id;
+    ipmi_config->session_timeout_len = session_timeout;
+    ipmi_config->retransmission_timeout_len = retransmission_timeout;
+
+    ipmi_config->workaround_flags = workaround_flags;
+}
+
+static const char *netdata_ipmi_get_sensor_type_string (int sensor_type, const char **component) {
+    switch (sensor_type) {
+        case IPMI_MONITORING_SENSOR_TYPE_RESERVED:
+            return ("Reserved");
+
+        case IPMI_MONITORING_SENSOR_TYPE_TEMPERATURE:
+            return ("Temperature");
+
+        case IPMI_MONITORING_SENSOR_TYPE_VOLTAGE:
+            return ("Voltage");
+
+        case IPMI_MONITORING_SENSOR_TYPE_CURRENT:
+            return ("Current");
+
+        case IPMI_MONITORING_SENSOR_TYPE_FAN:
+            return ("Fan");
+
+        case IPMI_MONITORING_SENSOR_TYPE_PHYSICAL_SECURITY:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Physical Security");
+
+        case IPMI_MONITORING_SENSOR_TYPE_PLATFORM_SECURITY_VIOLATION_ATTEMPT:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Platform Security Violation Attempt");
+
+        case IPMI_MONITORING_SENSOR_TYPE_PROCESSOR:
+            *component = NETDATA_SENSOR_COMPONENT_PROCESSOR;
+            return ("Processor");
+
+        case IPMI_MONITORING_SENSOR_TYPE_POWER_SUPPLY:
+            *component = NETDATA_SENSOR_COMPONENT_POWER_SUPPLY;
+            return ("Power Supply");
+
+        case IPMI_MONITORING_SENSOR_TYPE_POWER_UNIT:
+            *component = NETDATA_SENSOR_COMPONENT_POWER_SUPPLY;
+            return ("Power Unit");
+
+        case IPMI_MONITORING_SENSOR_TYPE_COOLING_DEVICE:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Cooling Device");
+
+        case IPMI_MONITORING_SENSOR_TYPE_OTHER_UNITS_BASED_SENSOR:
+            return ("Other Units Based Sensor");
+
+        case IPMI_MONITORING_SENSOR_TYPE_MEMORY:
+            *component = NETDATA_SENSOR_COMPONENT_MEMORY;
+            return ("Memory");
+
+        case IPMI_MONITORING_SENSOR_TYPE_DRIVE_SLOT:
+            *component = NETDATA_SENSOR_COMPONENT_STORAGE;
+            return ("Drive Slot");
+
+        case IPMI_MONITORING_SENSOR_TYPE_POST_MEMORY_RESIZE:
+            *component = NETDATA_SENSOR_COMPONENT_MEMORY;
+            return ("POST Memory Resize");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SYSTEM_FIRMWARE_PROGRESS:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("System Firmware Progress");
+
+        case IPMI_MONITORING_SENSOR_TYPE_EVENT_LOGGING_DISABLED:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Event Logging Disabled");
+
+        case IPMI_MONITORING_SENSOR_TYPE_WATCHDOG1:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Watchdog 1");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SYSTEM_EVENT:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("System Event");
+
+        case IPMI_MONITORING_SENSOR_TYPE_CRITICAL_INTERRUPT:
+            return ("Critical Interrupt");
+
+        case IPMI_MONITORING_SENSOR_TYPE_BUTTON_SWITCH:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Button/Switch");
+
+        case IPMI_MONITORING_SENSOR_TYPE_MODULE_BOARD:
+            return ("Module/Board");
+
+        case IPMI_MONITORING_SENSOR_TYPE_MICROCONTROLLER_COPROCESSOR:
+            *component = NETDATA_SENSOR_COMPONENT_PROCESSOR;
+            return ("Microcontroller/Coprocessor");
+
+        case IPMI_MONITORING_SENSOR_TYPE_ADD_IN_CARD:
+            return ("Add In Card");
+
+        case IPMI_MONITORING_SENSOR_TYPE_CHASSIS:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Chassis");
+
+        case IPMI_MONITORING_SENSOR_TYPE_CHIP_SET:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Chip Set");
+
+        case IPMI_MONITORING_SENSOR_TYPE_OTHER_FRU:
+            return ("Other Fru");
+
+        case IPMI_MONITORING_SENSOR_TYPE_CABLE_INTERCONNECT:
+            return ("Cable/Interconnect");
+
+        case IPMI_MONITORING_SENSOR_TYPE_TERMINATOR:
+            return ("Terminator");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SYSTEM_BOOT_INITIATED:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("System Boot Initiated");
+
+        case IPMI_MONITORING_SENSOR_TYPE_BOOT_ERROR:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Boot Error");
+
+        case IPMI_MONITORING_SENSOR_TYPE_OS_BOOT:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("OS Boot");
+
+        case IPMI_MONITORING_SENSOR_TYPE_OS_CRITICAL_STOP:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("OS Critical Stop");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SLOT_CONNECTOR:
+            return ("Slot/Connector");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SYSTEM_ACPI_POWER_STATE:
+            return ("System ACPI Power State");
+
+        case IPMI_MONITORING_SENSOR_TYPE_WATCHDOG2:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Watchdog 2");
+
+        case IPMI_MONITORING_SENSOR_TYPE_PLATFORM_ALERT:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Platform Alert");
+
+        case IPMI_MONITORING_SENSOR_TYPE_ENTITY_PRESENCE:
+            return ("Entity Presence");
+
+        case IPMI_MONITORING_SENSOR_TYPE_MONITOR_ASIC_IC:
+            return ("Monitor ASIC/IC");
+
+        case IPMI_MONITORING_SENSOR_TYPE_LAN:
+            *component = NETDATA_SENSOR_COMPONENT_NETWORK;
+            return ("LAN");
+
+        case IPMI_MONITORING_SENSOR_TYPE_MANAGEMENT_SUBSYSTEM_HEALTH:
+            *component = NETDATA_SENSOR_COMPONENT_SYSTEM;
+            return ("Management Subsystem Health");
+
+        case IPMI_MONITORING_SENSOR_TYPE_BATTERY:
+            return ("Battery");
+
+        case IPMI_MONITORING_SENSOR_TYPE_SESSION_AUDIT:
+            return ("Session Audit");
+
+        case IPMI_MONITORING_SENSOR_TYPE_VERSION_CHANGE:
+            return ("Version Change");
+
+        case IPMI_MONITORING_SENSOR_TYPE_FRU_STATE:
+            return ("FRU State");
+
+        case IPMI_MONITORING_SENSOR_TYPE_UNKNOWN:
+            return ("Unknown");
+
+        default:
+            if(sensor_type >= IPMI_MONITORING_SENSOR_TYPE_OEM_MIN && sensor_type <= IPMI_MONITORING_SENSOR_TYPE_OEM_MAX)
+                return ("OEM");
+
+            return ("Unrecognized");
+    }
+}
+
+#define netdata_ipmi_get_value_int(var, func, ctx) do {         \
+    (var) = func(ctx);                                          \
+    if( (var) < 0) {                                            \
+        collector_error("%s(): call to " #func " failed: %s",   \
+            __FUNCTION__, ipmi_monitoring_ctx_errormsg(ctx));   \
+        goto cleanup;                                           \
+    }                                                           \
+    timing_step(TIMING_STEP_FREEIPMI_READ_ ## var);             \
+} while(0)
+
+#define netdata_ipmi_get_value_ptr(var, func, ctx) do {         \
+    (var) = func(ctx);                                          \
+    if(!(var)) {                                                \
+        collector_error("%s(): call to " #func " failed: %s",   \
+            __FUNCTION__, ipmi_monitoring_ctx_errormsg(ctx));   \
+        goto cleanup;                                           \
+    }                                                           \
+    timing_step(TIMING_STEP_FREEIPMI_READ_ ## var);             \
+} while(0)
+
+#define netdata_ipmi_get_value_no_check(var, func, ctx) do {    \
+    (var) = func(ctx);                                          \
+    timing_step(TIMING_STEP_FREEIPMI_READ_ ## var);             \
+} while(0)
+
+static int netdata_read_ipmi_sensors(struct ipmi_monitoring_ipmi_config *ipmi_config, struct netdata_ipmi_state *state) {
+    timing_init();
+
+    ipmi_monitoring_ctx_t ctx = NULL;
+    unsigned int sensor_reading_flags = global_sensor_reading_flags;
+    int i;
+    int sensor_count;
+    int rv = -1;
+
+    if (!(ctx = ipmi_monitoring_ctx_create ())) {
+        collector_error("ipmi_monitoring_ctx_create()");
+        goto cleanup;
+    }
+
+    timing_step(TIMING_STEP_FREEIPMI_CTX_CREATE);
+
+    if (sdr_cache_directory) {
+        if (ipmi_monitoring_ctx_sdr_cache_directory (ctx, sdr_cache_directory) < 0) {
+            collector_error("ipmi_monitoring_ctx_sdr_cache_directory(): %s\n", ipmi_monitoring_ctx_errormsg (ctx));
+            goto cleanup;
+        }
+    }
+    if (sdr_sensors_cache_format) {
+        if (ipmi_monitoring_ctx_sdr_cache_filenames(ctx, sdr_sensors_cache_format) < 0) {
+            collector_error("ipmi_monitoring_ctx_sdr_cache_filenames(): %s\n", ipmi_monitoring_ctx_errormsg (ctx));
+            goto cleanup;
+        }
+    }
+
+    timing_step(TIMING_STEP_FREEIPMI_DSR_CACHE_DIR);
+
+    // Must call otherwise only default interpretations ever used
+    // sensor_config_file can be NULL
+    if (ipmi_monitoring_ctx_sensor_config_file (ctx, sensor_config_file) < 0) {
+        collector_error( "ipmi_monitoring_ctx_sensor_config_file(): %s\n", ipmi_monitoring_ctx_errormsg (ctx));
+        goto cleanup;
+    }
+
+    timing_step(TIMING_STEP_FREEIPMI_SENSOR_CONFIG_FILE);
+
+    if ((sensor_count = ipmi_monitoring_sensor_readings_by_record_id (ctx,
+            hostname,
+            ipmi_config,
+            sensor_reading_flags,
+            NULL,
+            0,
+            NULL,
+            NULL)) < 0) {
+        collector_error( "ipmi_monitoring_sensor_readings_by_record_id(): %s",
+                         ipmi_monitoring_ctx_errormsg (ctx));
+        goto cleanup;
+    }
+
+    timing_step(TIMING_STEP_FREEIPMI_SENSOR_READINGS_BY_X);
+
+    for (i = 0; i < sensor_count; i++, ipmi_monitoring_sensor_iterator_next (ctx)) {
+        int record_id, sensor_number, sensor_type, sensor_state, sensor_units,
+            sensor_bitmask_type, sensor_bitmask, event_reading_type_code, sensor_reading_type;
+
+        char **sensor_bitmask_strings = NULL;
+        char *sensor_name = NULL;
+        void *sensor_reading;
+
+        netdata_ipmi_get_value_int(record_id, ipmi_monitoring_sensor_read_record_id, ctx);
+        netdata_ipmi_get_value_int(sensor_number, ipmi_monitoring_sensor_read_sensor_number, ctx);
+        netdata_ipmi_get_value_int(sensor_type, ipmi_monitoring_sensor_read_sensor_type, ctx);
+        netdata_ipmi_get_value_ptr(sensor_name, ipmi_monitoring_sensor_read_sensor_name, ctx);
+        netdata_ipmi_get_value_int(sensor_state, ipmi_monitoring_sensor_read_sensor_state, ctx);
+        netdata_ipmi_get_value_int(sensor_units, ipmi_monitoring_sensor_read_sensor_units, ctx);
+        netdata_ipmi_get_value_int(sensor_bitmask_type, ipmi_monitoring_sensor_read_sensor_bitmask_type, ctx);
+        netdata_ipmi_get_value_int(sensor_bitmask, ipmi_monitoring_sensor_read_sensor_bitmask, ctx);
+        // it's ok for this to be NULL, i.e. sensor_bitmask == IPMI_MONITORING_SENSOR_BITMASK_TYPE_UNKNOWN
+        netdata_ipmi_get_value_no_check(sensor_bitmask_strings, ipmi_monitoring_sensor_read_sensor_bitmask_strings, ctx);
+        netdata_ipmi_get_value_int(sensor_reading_type, ipmi_monitoring_sensor_read_sensor_reading_type, ctx);
+        // whatever we read from the sensor, it is ok
+        netdata_ipmi_get_value_no_check(sensor_reading, ipmi_monitoring_sensor_read_sensor_reading, ctx);
+        netdata_ipmi_get_value_int(event_reading_type_code, ipmi_monitoring_sensor_read_event_reading_type_code, ctx);
+
+        netdata_update_ipmi_sensor_reading(
+                record_id, sensor_number, sensor_type, sensor_state, sensor_units, sensor_reading_type, sensor_name,
+                sensor_reading, event_reading_type_code, sensor_bitmask_type, sensor_bitmask, sensor_bitmask_strings,
+                state
+        );
+
+#ifdef NETDATA_COMMENTED
+        /* It is possible you may want to monitor specific event
+         * conditions that may occur.  If that is the case, you may want
+         * to check out what specific bitmask type and bitmask events
+         * occurred.  See ipmi_monitoring_bitmasks.h for a list of
+         * bitmasks and types.
+         */
+
+        if (sensor_bitmask_type != IPMI_MONITORING_SENSOR_BITMASK_TYPE_UNKNOWN)
+            printf (", %Xh", sensor_bitmask);
+        else
+            printf (", N/A");
+
+        if (sensor_bitmask_type != IPMI_MONITORING_SENSOR_BITMASK_TYPE_UNKNOWN
+            && sensor_bitmask_strings)
+        {
+            unsigned int i = 0;
+
+            printf (",");
+
+            while (sensor_bitmask_strings[i])
+            {
+                printf (" ");
+
+                printf ("'%s'",
+                        sensor_bitmask_strings[i]);
+
+                i++;
+            }
+        }
+        else
+            printf (", N/A");
+
+        printf ("\n");
+#endif // NETDATA_COMMENTED
+    }
+
+    rv = 0;
+
+cleanup:
+    if (ctx)
+        ipmi_monitoring_ctx_destroy (ctx);
+
+    timing_report();
+
+    if(remove_reread_sdr_after_first_use)
+        global_sensor_reading_flags &= ~(IPMI_MONITORING_SENSOR_READING_FLAGS_REREAD_SDR_CACHE);
+
+    return (rv);
+}
+
+
+static int netdata_get_ipmi_sel_events_count(struct ipmi_monitoring_ipmi_config *ipmi_config, struct netdata_ipmi_state *state) {
+    timing_init();
+
+    ipmi_monitoring_ctx_t ctx = NULL;
+    unsigned int sel_flags = global_sel_flags;
+    int sel_count;
+    int rv = -1;
+
+    if (!(ctx = ipmi_monitoring_ctx_create ())) {
+        collector_error("ipmi_monitoring_ctx_create()");
+        goto cleanup;
+    }
+
+    if (sdr_cache_directory) {
+        if (ipmi_monitoring_ctx_sdr_cache_directory (ctx, sdr_cache_directory) < 0) {
+            collector_error( "ipmi_monitoring_ctx_sdr_cache_directory(): %s", ipmi_monitoring_ctx_errormsg (ctx));
+            goto cleanup;
+        }
+    }
+    if (sdr_sel_cache_format) {
+        if (ipmi_monitoring_ctx_sdr_cache_filenames(ctx, sdr_sel_cache_format) < 0) {
+            collector_error("ipmi_monitoring_ctx_sdr_cache_filenames(): %s\n", ipmi_monitoring_ctx_errormsg (ctx));
+            goto cleanup;
+        }
+    }
+
+    // Must call otherwise only default interpretations ever used
+    // sel_config_file can be NULL
+    if (ipmi_monitoring_ctx_sel_config_file (ctx, sel_config_file) < 0) {
+        collector_error( "ipmi_monitoring_ctx_sel_config_file(): %s",
+                         ipmi_monitoring_ctx_errormsg (ctx));
+        goto cleanup;
+    }
+
+    if ((sel_count = ipmi_monitoring_sel_by_record_id (ctx,
+            hostname,
+            ipmi_config,
+            sel_flags,
+            NULL,
+            0,
+            NULL,
+            NULL)) < 0) {
+        collector_error( "ipmi_monitoring_sel_by_record_id(): %s",
+                         ipmi_monitoring_ctx_errormsg (ctx));
+        goto cleanup;
+    }
+
+    netdata_update_ipmi_sel_events_count(state, sel_count);
+
+    rv = 0;
+
+cleanup:
+    if (ctx)
+        ipmi_monitoring_ctx_destroy (ctx);
+
+    timing_report();
+
+    if(remove_reread_sdr_after_first_use)
+        global_sel_flags &= ~(IPMI_MONITORING_SEL_FLAGS_REREAD_SDR_CACHE);
+
+    return (rv);
+}
+
+// ----------------------------------------------------------------------------
+// copied from freeipmi codebase commit 8dea6dec4012d0899901e595f2c868a05e1cefed
+// added netdata_ in-front to not overwrite library functions
+
+// FROM: common/miscutil/network.c
+static int netdata_host_is_localhost (const char *host) {
+    /* Ordered by my assumption of most popular */
+    if (!strcasecmp (host, "localhost")
+        || !strcmp (host, "127.0.0.1")
+        || !strcasecmp (host, "ipv6-localhost")
+        || !strcmp (host, "::1")
+        || !strcasecmp (host, "ip6-localhost")
+        || !strcmp (host, "0:0:0:0:0:0:0:1"))
+        return (1);
+
+    return (0);
+}
+
+// FROM: common/parsecommon/parse-common.h
+#define IPMI_PARSE_DEVICE_LAN_STR       "lan"
+#define IPMI_PARSE_DEVICE_LAN_2_0_STR   "lan_2_0"
+#define IPMI_PARSE_DEVICE_LAN_2_0_STR2  "lan20"
+#define IPMI_PARSE_DEVICE_LAN_2_0_STR3  "lan_20"
+#define IPMI_PARSE_DEVICE_LAN_2_0_STR4  "lan2_0"
+#define IPMI_PARSE_DEVICE_LAN_2_0_STR5  "lanplus"
+#define IPMI_PARSE_DEVICE_KCS_STR       "kcs"
+#define IPMI_PARSE_DEVICE_SSIF_STR      "ssif"
+#define IPMI_PARSE_DEVICE_OPENIPMI_STR  "openipmi"
+#define IPMI_PARSE_DEVICE_OPENIPMI_STR2 "open"
+#define IPMI_PARSE_DEVICE_SUNBMC_STR    "sunbmc"
+#define IPMI_PARSE_DEVICE_SUNBMC_STR2   "bmc"
+#define IPMI_PARSE_DEVICE_INTELDCMI_STR "inteldcmi"
+
+// FROM: common/parsecommon/parse-common.c
+// changed the return values to match ipmi_monitoring.h
+static int netdata_parse_outofband_driver_type (const char *str) {
+    if (strcasecmp (str, IPMI_PARSE_DEVICE_LAN_STR) == 0)
+        return (IPMI_MONITORING_PROTOCOL_VERSION_1_5);
+
+        /* support "lanplus" for those that might be used to ipmitool.
+         * support typo variants to ease.
+         */
+    else if (strcasecmp (str, IPMI_PARSE_DEVICE_LAN_2_0_STR) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_LAN_2_0_STR2) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_LAN_2_0_STR3) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_LAN_2_0_STR4) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_LAN_2_0_STR5) == 0)
+        return (IPMI_MONITORING_PROTOCOL_VERSION_2_0);
+
+    return (-1);
+}
+
+// FROM: common/parsecommon/parse-common.c
+// changed the return values to match ipmi_monitoring.h
+static int netdata_parse_inband_driver_type (const char *str) {
+    if (strcasecmp (str, IPMI_PARSE_DEVICE_KCS_STR) == 0)
+        return (IPMI_MONITORING_DRIVER_TYPE_KCS);
+    else if (strcasecmp (str, IPMI_PARSE_DEVICE_SSIF_STR) == 0)
+        return (IPMI_MONITORING_DRIVER_TYPE_SSIF);
+        /* support "open" for those that might be used to
+         * ipmitool.
+         */
+    else if (strcasecmp (str, IPMI_PARSE_DEVICE_OPENIPMI_STR) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_OPENIPMI_STR2) == 0)
+        return (IPMI_MONITORING_DRIVER_TYPE_OPENIPMI);
+        /* support "bmc" for those that might be used to
+         * ipmitool.
+         */
+    else if (strcasecmp (str, IPMI_PARSE_DEVICE_SUNBMC_STR) == 0
+             || strcasecmp (str, IPMI_PARSE_DEVICE_SUNBMC_STR2) == 0)
+        return (IPMI_MONITORING_DRIVER_TYPE_SUNBMC);
+
+#ifdef IPMI_MONITORING_DRIVER_TYPE_INTELDCMI
+    else if (strcasecmp (str, IPMI_PARSE_DEVICE_INTELDCMI_STR) == 0)
+        return (IPMI_MONITORING_DRIVER_TYPE_INTELDCMI);
+#endif // IPMI_MONITORING_DRIVER_TYPE_INTELDCMI
+
+    return (-1);
+}
+
+// ----------------------------------------------------------------------------
+// BEGIN NETDATA CODE
+
+typedef enum __attribute__((packed)) {
+    IPMI_COLLECT_TYPE_SENSORS = (1 << 0),
+    IPMI_COLLECT_TYPE_SEL     = (1 << 1),
+} IPMI_COLLECTION_TYPE;
+
+struct sensor {
+    int sensor_type;
+    int sensor_state;
+    int sensor_units;
+    char *sensor_name;
+
+    int sensor_reading_type;
+    union {
+        uint8_t bool_value;
+        uint32_t uint32_value;
+        double double_value;
+    } sensor_reading;
+
+    // netdata provided
+    const char *context;
+    const char *title;
+    const char *units;
+    const char *family;
+    const char *chart_type;
+    const char *dimension;
+    int priority;
+
+    const char *type;
+    const char *component;
+
+    int multiplier;
+    bool do_metric;
+    bool do_state;
+    bool metric_chart_sent;
+    bool state_chart_sent;
+    usec_t last_collected_metric_ut;
+    usec_t last_collected_state_ut;
+};
+
+typedef enum __attribute__((packed)) {
+    ICS_INIT,
+    ICS_INIT_FAILED,
+    ICS_RUNNING,
+    ICS_FAILED,
+} IPMI_COLLECTOR_STATUS;
+
+struct netdata_ipmi_state {
+    bool debug;
+
+    struct {
+        IPMI_COLLECTOR_STATUS status;
+        usec_t last_iteration_ut;
+        size_t collected;
+        usec_t now_ut;
+        usec_t freq_ut;
+        int priority;
+        DICTIONARY *dict;
+    } sensors;
+
+    struct {
+        IPMI_COLLECTOR_STATUS status;
+        usec_t last_iteration_ut;
+        size_t events;
+        usec_t now_ut;
+        usec_t freq_ut;
+        int priority;
+    } sel;
+
+    struct {
+        usec_t now_ut;
+    } updates;
+};
+
+struct netdata_ipmi_state state = {0};
+
+// ----------------------------------------------------------------------------
+// excluded record ids maintenance (both for sensor data and state)
+
+static int *excluded_record_ids = NULL;
+size_t excluded_record_ids_length = 0;
+
+static void excluded_record_ids_parse(const char *s, bool debug) {
+    if(!s) return;
+
+    while(*s) {
+        while(*s && !isdigit(*s)) s++;
+
+        if(isdigit(*s)) {
+            char *e;
+            unsigned long n = strtoul(s, &e, 10);
+            s = e;
+
+            if(n != 0) {
+                excluded_record_ids = reallocz(excluded_record_ids, (excluded_record_ids_length + 1) * sizeof(int));
+                excluded_record_ids[excluded_record_ids_length++] = (int)n;
+            }
+        }
+    }
+
+    if(debug) {
+        fprintf(stderr, "%s: excluded record ids:", program_name);
+        size_t i;
+        for(i = 0; i < excluded_record_ids_length; i++) {
+            fprintf(stderr, " %d", excluded_record_ids[i]);
+        }
+        fprintf(stderr, "\n");
+    }
+}
+
+static int *excluded_status_record_ids = NULL;
+size_t excluded_status_record_ids_length = 0;
+
+static void excluded_status_record_ids_parse(const char *s, bool debug) {
+    if(!s) return;
+
+    while(*s) {
+        while(*s && !isdigit(*s)) s++;
+
+        if(isdigit(*s)) {
+            char *e;
+            unsigned long n = strtoul(s, &e, 10);
+            s = e;
+
+            if(n != 0) {
+                excluded_status_record_ids = reallocz(excluded_status_record_ids, (excluded_status_record_ids_length + 1) * sizeof(int));
+                excluded_status_record_ids[excluded_status_record_ids_length++] = (int)n;
+            }
+        }
+    }
+
+    if(debug) {
+        fprintf(stderr, "%s: excluded status record ids:", program_name);
+        size_t i;
+        for(i = 0; i < excluded_status_record_ids_length; i++) {
+            fprintf(stderr, " %d", excluded_status_record_ids[i]);
+        }
+        fprintf(stderr, "\n");
+    }
+}
+
+
+static int excluded_record_ids_check(int record_id) {
+    size_t i;
+
+    for(i = 0; i < excluded_record_ids_length; i++) {
+        if(excluded_record_ids[i] == record_id)
+            return 1;
+    }
+
+    return 0;
+}
+
+static int excluded_status_record_ids_check(int record_id) {
+    size_t i;
+
+    for(i = 0; i < excluded_status_record_ids_length; i++) {
+        if(excluded_status_record_ids[i] == record_id)
+            return 1;
+    }
+
+    return 0;
+}
+
+// ----------------------------------------------------------------------------
+// data collection functions
+
+struct {
+    const char *search;
+    SIMPLE_PATTERN *pattern;
+    const char *label;
+} sensors_component_patterns[] = {
+
+        // The order is important!
+        // They are evaluated top to bottom
+        // The first the matches is used
+
+        {
+                .search = "*DIMM*|*_DIM*|*VTT*|*VDDQ*|*ECC*|*MEM*CRC*|*MEM*BD*",
+                .label = NETDATA_SENSOR_COMPONENT_MEMORY_MODULE,
+        },
+        {
+                .search = "*CPU*|SOC_*|*VDDCR*|P*_VDD*|*_DTS|*VCORE*|*PROC*",
+                .label = NETDATA_SENSOR_COMPONENT_PROCESSOR,
+        },
+        {
+                .search = "IPU*",
+                .label = NETDATA_SENSOR_COMPONENT_IPU,
+        },
+        {
+                .search = "M2_*|*SSD*|*HSC*|*HDD*|*NVME*",
+                .label = NETDATA_SENSOR_COMPONENT_STORAGE,
+        },
+        {
+                .search = "MB_*|*PCH*|*VBAT*|*I/O*BD*|*IO*BD*",
+                .label = NETDATA_SENSOR_COMPONENT_MOTHERBOARD,
+        },
+        {
+                .search = "Watchdog|SEL|SYS_*|*CHASSIS*",
+                .label = NETDATA_SENSOR_COMPONENT_SYSTEM,
+        },
+        {
+                .search = "PS*|P_*|*PSU*|*PWR*|*TERMV*|*D2D*",
+                .label = NETDATA_SENSOR_COMPONENT_POWER_SUPPLY,
+        },
+
+        // fallback components
+        {
+                .search = "VR_P*|*VRMP*",
+                .label = NETDATA_SENSOR_COMPONENT_PROCESSOR,
+        },
+        {
+                .search = "*VSB*|*PS*",
+                .label = NETDATA_SENSOR_COMPONENT_POWER_SUPPLY,
+        },
+        {
+                .search = "*MEM*|*MEM*RAID*",
+                .label = NETDATA_SENSOR_COMPONENT_MEMORY,
+        },
+        {
+                .search = "*RAID*",         // there is also "Memory RAID", so keep this after memory
+                .label = NETDATA_SENSOR_COMPONENT_STORAGE,
+        },
+        {
+                .search = "*PERIPHERAL*|*USB*",
+                .label = NETDATA_SENSOR_COMPONENT_PERIPHERAL,
+        },
+        {
+                .search = "*FAN*|*12V*|*VCC*|*PCI*|*CHIPSET*|*AMP*|*BD*",
+                .label = NETDATA_SENSOR_COMPONENT_SYSTEM,
+        },
+
+        // terminator
+        {
+                .search = NULL,
+                .label = NULL,
+        }
+};
+
+static const char *netdata_sensor_name_to_component(const char *sensor_name) {
+    for(int i = 0; sensors_component_patterns[i].search ;i++) {
+        if(!sensors_component_patterns[i].pattern)
+            sensors_component_patterns[i].pattern = simple_pattern_create(sensors_component_patterns[i].search, "|", SIMPLE_PATTERN_EXACT, false);
+
+        if(simple_pattern_matches(sensors_component_patterns[i].pattern, sensor_name))
+            return sensors_component_patterns[i].label;
+    }
+
+    return "Other";
+}
+
+const char *netdata_collect_type_to_string(IPMI_COLLECTION_TYPE type) {
+    if((type & (IPMI_COLLECT_TYPE_SENSORS|IPMI_COLLECT_TYPE_SEL)) == (IPMI_COLLECT_TYPE_SENSORS|IPMI_COLLECT_TYPE_SEL))
+        return "sensors,sel";
+    if(type & IPMI_COLLECT_TYPE_SEL)
+        return "sel";
+    if(type & IPMI_COLLECT_TYPE_SENSORS)
+        return "sensors";
+
+    return "unknown";
+}
+
+static void netdata_sensor_set_value(struct sensor *sn, void *sensor_reading, struct netdata_ipmi_state *state __maybe_unused) {
+    switch(sn->sensor_reading_type) {
+        case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER8_BOOL:
+            sn->sensor_reading.bool_value = *((uint8_t *)sensor_reading);
+            break;
+
+        case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER32:
+            sn->sensor_reading.uint32_value = *((uint32_t *)sensor_reading);
+            break;
+
+        case IPMI_MONITORING_SENSOR_READING_TYPE_DOUBLE:
+            sn->sensor_reading.double_value = *((double *)sensor_reading);
+            break;
+
+        default:
+        case IPMI_MONITORING_SENSOR_READING_TYPE_UNKNOWN:
+            sn->do_metric = false;
+            break;
+    }
+}
+
+static void netdata_update_ipmi_sensor_reading(
+        int record_id
+        , int sensor_number
+        , int sensor_type
+        , int sensor_state
+        , int sensor_units
+        , int sensor_reading_type
+        , char *sensor_name
+        , void *sensor_reading
+        , int event_reading_type_code __maybe_unused
+        , int sensor_bitmask_type __maybe_unused
+        , int sensor_bitmask __maybe_unused
+        , char **sensor_bitmask_strings __maybe_unused
+        , struct netdata_ipmi_state *state
+) {
+    if(unlikely(sensor_state == IPMI_MONITORING_STATE_UNKNOWN &&
+        sensor_type == IPMI_MONITORING_SENSOR_TYPE_UNKNOWN &&
+        sensor_units == IPMI_MONITORING_SENSOR_UNITS_UNKNOWN &&
+        sensor_reading_type == IPMI_MONITORING_SENSOR_READING_TYPE_UNKNOWN &&
+        (!sensor_name || !*sensor_name)))
+        // we can't do anything about this sensor - everything is unknown
+        return;
+
+    if(unlikely(!sensor_name || !*sensor_name))
+        sensor_name = "UNNAMED";
+
+    state->sensors.collected++;
+
+    char key[SENSORS_DICT_KEY_SIZE + 1];
+    snprintfz(key, SENSORS_DICT_KEY_SIZE, "i%d_n%d_t%d_u%d_%s",
+              record_id, sensor_number, sensor_reading_type, sensor_units, sensor_name);
+
+    // find the sensor record
+    const DICTIONARY_ITEM *item = dictionary_get_and_acquire_item(state->sensors.dict, key);
+    if(likely(item)) {
+        // recurring collection
+
+        if(state->debug)
+            fprintf(stderr, "%s: reusing sensor record for sensor '%s', id %d, number %d, type %d, state %d, units %d, reading_type %d\n",
+                    program_name, sensor_name, record_id, sensor_number, sensor_type, sensor_state, sensor_units, sensor_reading_type);
+
+        struct sensor *sn = dictionary_acquired_item_value(item);
+
+        if(sensor_reading) {
+            netdata_sensor_set_value(sn, sensor_reading, state);
+            sn->last_collected_metric_ut = state->sensors.now_ut;
+        }
+
+        sn->sensor_state = sensor_state;
+
+        sn->last_collected_state_ut = state->sensors.now_ut;
+
+        dictionary_acquired_item_release(state->sensors.dict, item);
+
+        return;
+    }
+
+    if(state->debug)
+        fprintf(stderr, "Allocating new sensor data record for sensor '%s', id %d, number %d, type %d, state %d, units %d, reading_type %d\n",
+                sensor_name, record_id, sensor_number, sensor_type, sensor_state, sensor_units, sensor_reading_type);
+
+    // check if it is excluded
+    bool excluded_metric = excluded_record_ids_check(record_id);
+    bool excluded_state = excluded_status_record_ids_check(record_id);
+
+    if(excluded_metric) {
+        if(state->debug)
+            fprintf(stderr, "Sensor '%s' is excluded by excluded_record_ids_check()\n", sensor_name);
+    }
+
+    if(excluded_state) {
+        if(state->debug)
+            fprintf(stderr, "Sensor '%s' is excluded for status check, by excluded_status_record_ids_check()\n", sensor_name);
+    }
+
+    struct sensor t = {
+            .sensor_type = sensor_type,
+            .sensor_state = sensor_state,
+            .sensor_units = sensor_units,
+            .sensor_reading_type = sensor_reading_type,
+            .sensor_name = strdupz(sensor_name),
+            .component = netdata_sensor_name_to_component(sensor_name),
+            .do_state = !excluded_state,
+            .do_metric = !excluded_metric,
+    };
+
+    t.type = netdata_ipmi_get_sensor_type_string(t.sensor_type, &t.component);
+
+    switch(t.sensor_units) {
+        case IPMI_MONITORING_SENSOR_UNITS_CELSIUS:
+            t.dimension = "temperature";
+            t.context = "ipmi.sensor_temperature_c";
+            t.title = "IPMI Sensor Temperature Celsius";
+            t.units = "Celsius";
+            t.family = "temperatures";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 10;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_FAHRENHEIT:
+            t.dimension = "temperature";
+            t.context = "ipmi.sensor_temperature_f";
+            t.title = "IPMI Sensor Temperature Fahrenheit";
+            t.units = "Fahrenheit";
+            t.family = "temperatures";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 20;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_VOLTS:
+            t.dimension = "voltage";
+            t.context = "ipmi.sensor_voltage";
+            t.title = "IPMI Sensor Voltage";
+            t.units = "Volts";
+            t.family = "voltages";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 30;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_AMPS:
+            t.dimension = "ampere";
+            t.context = "ipmi.sensor_ampere";
+            t.title = "IPMI Sensor Current";
+            t.units = "Amps";
+            t.family = "current";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 40;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_RPM:
+            t.dimension = "rotations";
+            t.context = "ipmi.sensor_fan_speed";
+            t.title = "IPMI Sensor Fans Speed";
+            t.units = "RPM";
+            t.family = "fans";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 50;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_WATTS:
+            t.dimension = "power";
+            t.context = "ipmi.sensor_power";
+            t.title = "IPMI Sensor Power";
+            t.units = "Watts";
+            t.family = "power";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 60;
+            break;
+
+        case IPMI_MONITORING_SENSOR_UNITS_PERCENT:
+            t.dimension = "percentage";
+            t.context = "ipmi.sensor_reading_percent";
+            t.title = "IPMI Sensor Reading Percentage";
+            t.units = "%%";
+            t.family = "other";
+            t.chart_type = "line";
+            t.priority = state->sensors.priority + 70;
+            break;
+
+        default:
+            t.priority = state->sensors.priority + 80;
+            t.do_metric = false;
+            break;
+    }
+
+    switch(sensor_reading_type) {
+        case IPMI_MONITORING_SENSOR_READING_TYPE_DOUBLE:
+            t.multiplier = 1000;
+            break;
+
+        case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER8_BOOL:
+        case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER32:
+            t.multiplier = 1;
+            break;
+
+        default:
+            t.do_metric = false;
+            break;
+    }
+
+    if(sensor_reading) {
+        netdata_sensor_set_value(&t, sensor_reading, state);
+        t.last_collected_metric_ut = state->sensors.now_ut;
+    }
+    t.last_collected_state_ut = state->sensors.now_ut;
+
+    dictionary_set(state->sensors.dict, key, &t, sizeof(t));
+}
+
+static void netdata_update_ipmi_sel_events_count(struct netdata_ipmi_state *state, uint32_t events) {
+    state->sel.events = events;
+}
+
+int netdata_ipmi_collect_data(struct ipmi_monitoring_ipmi_config *ipmi_config, IPMI_COLLECTION_TYPE type, struct netdata_ipmi_state *state) {
+    errno = 0;
+
+    if(type & IPMI_COLLECT_TYPE_SENSORS) {
+        state->sensors.collected = 0;
+        state->sensors.now_ut = now_monotonic_usec();
+
+        if (netdata_read_ipmi_sensors(ipmi_config, state) < 0) return -1;
+    }
+
+    if(type & IPMI_COLLECT_TYPE_SEL) {
+        state->sel.events = 0;
+        state->sel.now_ut = now_monotonic_usec();
+        if(netdata_get_ipmi_sel_events_count(ipmi_config, state) < 0) return -2;
+    }
+
+    return 0;
+}
+
+int netdata_ipmi_detect_speed_secs(struct ipmi_monitoring_ipmi_config *ipmi_config, IPMI_COLLECTION_TYPE type, struct netdata_ipmi_state *state) {
+    int i, checks = SPEED_TEST_ITERATIONS, successful = 0;
+    usec_t total = 0;
+
+    for(i = 0 ; i < checks ; i++) {
+        if(unlikely(state->debug))
+            fprintf(stderr, "%s: checking %s data collection speed iteration %d of %d\n",
+                    program_name, netdata_collect_type_to_string(type), i + 1, checks);
+
+        // measure the time a data collection needs
+        usec_t start = now_realtime_usec();
+
+        if(netdata_ipmi_collect_data(ipmi_config, type, state) < 0)
+            continue;
+
+        usec_t end = now_realtime_usec();
+
+        successful++;
+
+        if(unlikely(state->debug))
+            fprintf(stderr, "%s: %s data collection speed was %"PRIu64" usec\n",
+                    program_name, netdata_collect_type_to_string(type), end - start);
+
+        // add it to our total
+        total += end - start;
+
+        // wait the same time
+        // to avoid flooding the IPMI processor with requests
+        sleep_usec(end - start);
+    }
+
+    if(!successful)
+        return 0;
+
+    // so, we assume it needed 2x the time
+    // we find the average in microseconds
+    // and we round-up to the closest second
+
+    return (int)(( total * 2 / successful / USEC_PER_SEC ) + 1);
+}
+
+// ----------------------------------------------------------------------------
+// data collection threads
+
+struct ipmi_collection_thread {
+    struct ipmi_monitoring_ipmi_config ipmi_config;
+    int freq_s;
+    bool debug;
+    IPMI_COLLECTION_TYPE type;
+    SPINLOCK spinlock;
+    struct netdata_ipmi_state state;
+};
+
+void *netdata_ipmi_collection_thread(void *ptr) {
+    struct ipmi_collection_thread *t = ptr;
+
+    if(t->debug) fprintf(stderr, "%s: calling initialize_ipmi_config() for %s\n",
+                         program_name, netdata_collect_type_to_string(t->type));
+
+    initialize_ipmi_config(&t->ipmi_config);
+
+    if(t->debug) fprintf(stderr, "%s: detecting IPMI minimum update frequency for %s...\n",
+                         program_name, netdata_collect_type_to_string(t->type));
+
+    int freq_s = netdata_ipmi_detect_speed_secs(&t->ipmi_config, t->type, &t->state);
+    if(!freq_s) {
+        if(t->type & IPMI_COLLECT_TYPE_SENSORS) {
+            t->state.sensors.status = ICS_INIT_FAILED;
+            t->state.sensors.last_iteration_ut = 0;
+        }
+
+        if(t->type & IPMI_COLLECT_TYPE_SEL) {
+            t->state.sel.status = ICS_INIT_FAILED;
+            t->state.sel.last_iteration_ut = 0;
+        }
+
+        return ptr;
+    }
+    else {
+        if(t->type & IPMI_COLLECT_TYPE_SENSORS) {
+            t->state.sensors.status = ICS_RUNNING;
+        }
+
+        if(t->type & IPMI_COLLECT_TYPE_SEL) {
+            t->state.sel.status = ICS_RUNNING;
+        }
+    }
+
+    t->freq_s = freq_s = MAX(t->freq_s, freq_s);
+
+    if(t->debug) {
+        fprintf(stderr, "%s: IPMI minimum update frequency of %s was calculated to %d seconds.\n",
+                program_name, netdata_collect_type_to_string(t->type), t->freq_s);
+
+        fprintf(stderr, "%s: starting data collection of %s\n",
+                program_name, netdata_collect_type_to_string(t->type));
+    }
+
+    size_t iteration = 0, failures = 0;
+    usec_t step = t->freq_s * USEC_PER_SEC;
+
+    heartbeat_t hb;
+    heartbeat_init(&hb);
+    while(++iteration) {
+        heartbeat_next(&hb, step);
+
+        if(t->debug)
+            fprintf(stderr, "%s: calling netdata_ipmi_collect_data() for %s\n",
+                    program_name, netdata_collect_type_to_string(t->type));
+
+        struct netdata_ipmi_state tmp_state = t->state;
+
+        if(t->type & IPMI_COLLECT_TYPE_SENSORS) {
+            tmp_state.sensors.last_iteration_ut = now_monotonic_usec();
+            tmp_state.sensors.freq_ut = t->freq_s * USEC_PER_SEC;
+        }
+
+        if(t->type & IPMI_COLLECT_TYPE_SEL) {
+            tmp_state.sel.last_iteration_ut = now_monotonic_usec();
+            tmp_state.sel.freq_ut = t->freq_s * USEC_PER_SEC;
+        }
+
+        if(netdata_ipmi_collect_data(&t->ipmi_config, t->type, &tmp_state) != 0)
+            failures++;
+        else
+            failures = 0;
+
+        if(failures > 10) {
+            collector_error("%s() failed to collect %s data for %zu consecutive times, having made %zu iterations.",
+                            __FUNCTION__, netdata_collect_type_to_string(t->type), failures, iteration);
+
+            if(t->type & IPMI_COLLECT_TYPE_SENSORS) {
+                t->state.sensors.status = ICS_FAILED;
+                t->state.sensors.last_iteration_ut = 0;
+            }
+
+            if(t->type & IPMI_COLLECT_TYPE_SEL) {
+                t->state.sel.status = ICS_FAILED;
+                t->state.sel.last_iteration_ut = 0;
+            }
+
+            break;
+        }
+
+        spinlock_lock(&t->spinlock);
+        t->state = tmp_state;
+        spinlock_unlock(&t->spinlock);
+    }
+
+    return ptr;
+}
+
+// ----------------------------------------------------------------------------
+// sending data to netdata
+
+static inline bool is_sensor_updated(usec_t last_collected_ut, usec_t now_ut, usec_t freq) {
+    return (now_ut - last_collected_ut < freq * 2) ? true : false;
+}
+
+static size_t send_ipmi_sensor_metrics_to_netdata(struct netdata_ipmi_state *state) {
+    if(state->sensors.status != ICS_RUNNING) {
+        if(unlikely(state->debug))
+            fprintf(stderr, "%s: %s() sensors state is not RUNNING\n",
+                    program_name, __FUNCTION__ );
+        return 0;
+    }
+
+    size_t total_sensors_sent = 0;
+    int update_every = (int)(state->sensors.freq_ut / USEC_PER_SEC);
+    struct sensor *sn;
+
+    netdata_mutex_lock(&stdout_mutex);
+    // generate the CHART/DIMENSION lines, if we have to
+    dfe_start_reentrant(state->sensors.dict, sn) {
+                if(unlikely(!sn->do_metric && !sn->do_state))
+                    continue;
+
+                bool did_metric = false, did_state = false;
+
+                if(likely(sn->do_metric)) {
+                    if(unlikely(!is_sensor_updated(sn->last_collected_metric_ut, state->updates.now_ut, state->sensors.freq_ut))) {
+                        if(unlikely(state->debug))
+                            fprintf(stderr, "%s: %s() sensor '%s' metric is not UPDATED (last updated %"PRIu64", now %"PRIu64", freq %"PRIu64"\n",
+                                    program_name, __FUNCTION__, sn->sensor_name, sn->last_collected_metric_ut, state->updates.now_ut, state->sensors.freq_ut);
+                    }
+                    else {
+                        if (unlikely(!sn->metric_chart_sent)) {
+                            sn->metric_chart_sent = true;
+
+                            printf("CHART '%s_%s' '' '%s' '%s' '%s' '%s' '%s' %d %d '' '%s' '%s'\n",
+                                   sn->context, sn_dfe.name, sn->title, sn->units, sn->family, sn->context,
+                                   sn->chart_type, sn->priority + 1, update_every, program_name, "sensors");
+
+                            printf("CLABEL 'sensor' '%s' 1\n", sn->sensor_name);
+                            printf("CLABEL 'type' '%s' 1\n", sn->type);
+                            printf("CLABEL 'component' '%s' 1\n", sn->component);
+                            printf("CLABEL_COMMIT\n");
+
+                            printf("DIMENSION '%s' '' absolute 1 %d\n", sn->dimension, sn->multiplier);
+                        }
+
+                        printf("BEGIN '%s_%s'\n", sn->context, sn_dfe.name);
+
+                        switch (sn->sensor_reading_type) {
+                            case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER32:
+                                printf("SET '%s' = %u\n", sn->dimension, sn->sensor_reading.uint32_value
+                                );
+                                break;
+
+                            case IPMI_MONITORING_SENSOR_READING_TYPE_DOUBLE:
+                                printf("SET '%s' = %lld\n", sn->dimension,
+                                       (long long int) (sn->sensor_reading.double_value * sn->multiplier)
+                                );
+                                break;
+
+                            case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER8_BOOL:
+                                printf("SET '%s' = %u\n", sn->dimension, sn->sensor_reading.bool_value
+                                );
+                                break;
+
+                            default:
+                            case IPMI_MONITORING_SENSOR_READING_TYPE_UNKNOWN:
+                                // this should never happen because we also do the same check at netdata_get_sensor()
+                                sn->do_metric = false;
+                                break;
+                        }
+
+                        printf("END\n");
+                        did_metric = true;
+                    }
+                }
+
+                if(likely(sn->do_state)) {
+                    if(unlikely(!is_sensor_updated(sn->last_collected_state_ut, state->updates.now_ut, state->sensors.freq_ut))) {
+                        if (unlikely(state->debug))
+                            fprintf(stderr, "%s: %s() sensor '%s' state is not UPDATED (last updated %"PRIu64", now %"PRIu64", freq %"PRIu64"\n",
+                                    program_name, __FUNCTION__, sn->sensor_name, sn->last_collected_state_ut, state->updates.now_ut, state->sensors.freq_ut);
+                    }
+                    else {
+                        if (unlikely(!sn->state_chart_sent)) {
+                            sn->state_chart_sent = true;
+
+                            printf("CHART 'ipmi.sensor_state_%s' '' 'IPMI Sensor State' 'state' 'states' 'ipmi.sensor_state' 'line' %d %d '' '%s' '%s'\n",
+                                   sn_dfe.name, sn->priority, update_every, program_name, "sensors");
+
+                            printf("CLABEL 'sensor' '%s' 1\n", sn->sensor_name);
+                            printf("CLABEL 'type' '%s' 1\n", sn->type);
+                            printf("CLABEL 'component' '%s' 1\n", sn->component);
+                            printf("CLABEL_COMMIT\n");
+
+                            printf("DIMENSION 'nominal' '' absolute 1 1\n");
+                            printf("DIMENSION 'warning' '' absolute 1 1\n");
+                            printf("DIMENSION 'critical' '' absolute 1 1\n");
+                            printf("DIMENSION 'unknown' '' absolute 1 1\n");
+                        }
+
+                        printf("BEGIN 'ipmi.sensor_state_%s'\n", sn_dfe.name);
+                        printf("SET 'nominal' = %lld\n", sn->sensor_state == IPMI_MONITORING_STATE_NOMINAL ? 1LL : 0LL);
+                        printf("SET 'warning' = %lld\n", sn->sensor_state == IPMI_MONITORING_STATE_WARNING ? 1LL : 0LL);
+                        printf("SET 'critical' = %lld\n", sn->sensor_state == IPMI_MONITORING_STATE_CRITICAL ? 1LL : 0LL);
+                        printf("SET 'unknown' = %lld\n", sn->sensor_state == IPMI_MONITORING_STATE_UNKNOWN ? 1LL : 0LL);
+                        printf("END\n");
+                        did_state = true;
+                    }
+                }
+
+                if(likely(did_metric || did_state))
+                    total_sensors_sent++;
+            }
+    dfe_done(sn);
+
+    netdata_mutex_unlock(&stdout_mutex);
+
+    return total_sensors_sent;
+}
+
+static size_t send_ipmi_sel_metrics_to_netdata(struct netdata_ipmi_state *state) {
+    static bool sel_chart_generated = false;
+
+    netdata_mutex_lock(&stdout_mutex);
+
+    if(likely(state->sel.status == ICS_RUNNING)) {
+        if(unlikely(!sel_chart_generated)) {
+            sel_chart_generated = true;
+            printf("CHART ipmi.events '' 'IPMI Events' 'events' 'events' ipmi.sel area %d %d '' '%s' '%s'\n"
+                    , state->sel.priority + 2
+                    , (int)(state->sel.freq_ut / USEC_PER_SEC)
+                    , program_name
+                    , "sel"
+            );
+            printf("DIMENSION events '' absolute 1 1\n");
+        }
+
+        printf(
+                "BEGIN ipmi.events\n"
+                "SET events = %zu\n"
+                "END\n"
+                , state->sel.events
+        );
+    }
+
+    netdata_mutex_unlock(&stdout_mutex);
+
+    return state->sel.events;
+}
+
+// ----------------------------------------------------------------------------
+
+static const char *get_sensor_state_string(struct sensor *sn) {
+    switch (sn->sensor_state) {
+        case IPMI_MONITORING_STATE_NOMINAL:
+            return "nominal";
+        case IPMI_MONITORING_STATE_WARNING:
+            return "warning";
+        case IPMI_MONITORING_STATE_CRITICAL:
+            return "critical";
+        default:
+            return "unknown";
+    }
+}
+
+static const char *get_sensor_function_priority(struct sensor *sn) {
+    switch (sn->sensor_state) {
+        case IPMI_MONITORING_STATE_WARNING:
+            return "warning";
+        case IPMI_MONITORING_STATE_CRITICAL:
+            return "critical";
+        default:
+            return "normal";
+    }
+}
+
+static void freeimi_function_sensors(const char *transaction, char *function __maybe_unused, int timeout __maybe_unused, bool *cancelled __maybe_unused) {
+    time_t expires = now_realtime_sec() + update_every;
+
+    BUFFER *wb = buffer_create(PLUGINSD_LINE_MAX, NULL);
+    buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_NEWLINE_ON_ARRAY_ITEMS);
+    buffer_json_member_add_uint64(wb, "status", HTTP_RESP_OK);
+    buffer_json_member_add_string(wb, "type", "table");
+    buffer_json_member_add_time_t(wb, "update_every", update_every);
+    buffer_json_member_add_string(wb, "help", "View IPMI sensor readings and its state");
+    buffer_json_member_add_array(wb, "data");
+
+    struct sensor *sn;
+    dfe_start_reentrant(state.sensors.dict, sn) {
+        if (unlikely(!sn->do_metric && !sn->do_state))
+            continue;
+
+        double reading = NAN;
+        switch (sn->sensor_reading_type) {
+            case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER32:
+                        reading = (double)sn->sensor_reading.uint32_value;
+                        break;
+            case IPMI_MONITORING_SENSOR_READING_TYPE_DOUBLE:
+                        reading = (double)(sn->sensor_reading.double_value);
+                        break;
+            case IPMI_MONITORING_SENSOR_READING_TYPE_UNSIGNED_INTEGER8_BOOL:
+                        reading = (double)sn->sensor_reading.bool_value;
+                        break;
+        }
+
+        buffer_json_add_array_item_array(wb);
+
+        buffer_json_add_array_item_string(wb, sn->sensor_name);
+        buffer_json_add_array_item_string(wb, sn->type);
+        buffer_json_add_array_item_string(wb, sn->component);
+        buffer_json_add_array_item_double(wb, reading);
+        buffer_json_add_array_item_string(wb, sn->units);
+        buffer_json_add_array_item_string(wb, get_sensor_state_string(sn));
+
+        buffer_json_add_array_item_object(wb);
+        buffer_json_member_add_string(wb, "severity", get_sensor_function_priority(sn));
+        buffer_json_object_close(wb);
+
+        buffer_json_array_close(wb);
+    }
+    dfe_done(sn);
+
+    buffer_json_array_close(wb); // data
+    buffer_json_member_add_object(wb, "columns");
+    {
+        size_t field_id = 0;
+
+        buffer_rrdf_table_add_field(wb, field_id++, "Sensor", "Sensor Name",
+                RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+                0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+                RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+                RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY | RRDF_FIELD_OPTS_STICKY | RRDF_FIELD_OPTS_FULL_WIDTH,
+                NULL);
+        buffer_rrdf_table_add_field(wb, field_id++, "Type", "Sensor Type",
+                RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+                0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+                RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+                RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY,
+                NULL);
+        buffer_rrdf_table_add_field(wb, field_id++, "Component", "Sensor Component",
+                RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+                0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+                RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+                RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY,
+                NULL);
+        buffer_rrdf_table_add_field(wb, field_id++, "Reading", "Sensor Current Reading",
+                RRDF_FIELD_TYPE_INTEGER, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NUMBER,
+                2, NULL, 0, RRDF_FIELD_SORT_DESCENDING, NULL,
+                RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_NONE,
+                RRDF_FIELD_OPTS_VISIBLE,
+                NULL);
+        buffer_rrdf_table_add_field(wb, field_id++, "Units", "Sensor Reading Units",
+                RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+                0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+                RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+                RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY,
+                NULL);
+        buffer_rrdf_table_add_field(wb, field_id++, "State", "Sensor State",
+                RRDF_FIELD_TYPE_STRING, RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE,
+                0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL,
+                RRDF_FIELD_SUMMARY_COUNT, RRDF_FIELD_FILTER_MULTISELECT,
+                RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_UNIQUE_KEY,
+                NULL);
+        buffer_rrdf_table_add_field(
+                wb, field_id++,
+                "rowOptions", "rowOptions",
+                RRDF_FIELD_TYPE_NONE,
+                RRDR_FIELD_VISUAL_ROW_OPTIONS,
+                RRDF_FIELD_TRANSFORM_NONE, 0, NULL, NAN,
+                RRDF_FIELD_SORT_FIXED,
+                NULL,
+                RRDF_FIELD_SUMMARY_COUNT,
+                RRDF_FIELD_FILTER_NONE,
+                RRDF_FIELD_OPTS_DUMMY,
+                NULL);
+    }
+
+    buffer_json_object_close(wb); // columns
+    buffer_json_member_add_string(wb, "default_sort_column", "Type");
+
+    buffer_json_member_add_object(wb, "charts");
+    {
+        buffer_json_member_add_object(wb, "Sensors");
+        {
+            buffer_json_member_add_string(wb, "name", "Sensors");
+            buffer_json_member_add_string(wb, "type", "stacked-bar");
+            buffer_json_member_add_array(wb, "columns");
+            {
+                buffer_json_add_array_item_string(wb, "Sensor");
+            }
+            buffer_json_array_close(wb);
+        }
+        buffer_json_object_close(wb);
+    }
+    buffer_json_object_close(wb); // charts
+
+    buffer_json_member_add_array(wb, "default_charts");
+    {
+        buffer_json_add_array_item_array(wb);
+        buffer_json_add_array_item_string(wb, "Sensors");
+        buffer_json_add_array_item_string(wb, "Component");
+        buffer_json_array_close(wb);
+
+        buffer_json_add_array_item_array(wb);
+        buffer_json_add_array_item_string(wb, "Sensors");
+        buffer_json_add_array_item_string(wb, "State");
+        buffer_json_array_close(wb);
+    }
+    buffer_json_array_close(wb);
+
+    buffer_json_member_add_time_t(wb, "expires", now_realtime_sec() + 1);
+    buffer_json_finalize(wb);
+
+    pluginsd_function_result_to_stdout(transaction, HTTP_RESP_OK, "application/json", expires, wb);
+
+    buffer_free(wb);
+}
+
+// ----------------------------------------------------------------------------
+// main, command line arguments parsing
+
+static void plugin_exit(int code) {
+    fflush(stdout);
+    function_plugin_should_exit = true;
+    exit(code);
+}
+
+int main (int argc, char **argv) {
+    clocks_init();
+    nd_log_initialize_for_external_plugins("freeipmi.plugin");
+    netdata_threads_init_for_external_plugins(0); // set the default threads stack size here
+
+    bool netdata_do_sel = IPMI_ENABLE_SEL_BY_DEFAULT;
+
+    bool debug = false;
+
+    // ------------------------------------------------------------------------
+    // parse command line parameters
+
+    int i, freq_s = 0;
+    for(i = 1; i < argc ; i++) {
+        if(isdigit(*argv[i]) && !freq_s) {
+            int n = str2i(argv[i]);
+            if(n > 0 && n < 86400) {
+                freq_s = n;
+                continue;
+            }
+        }
+        else if(strcmp("version", argv[i]) == 0 || strcmp("-version", argv[i]) == 0 || strcmp("--version", argv[i]) == 0 || strcmp("-v", argv[i]) == 0 || strcmp("-V", argv[i]) == 0) {
+            printf("%s %s\n", program_name, VERSION);
+            exit(0);
+        }
+        else if(strcmp("debug", argv[i]) == 0) {
+            debug = true;
+            continue;
+        }
+        else if(strcmp("sel", argv[i]) == 0) {
+            netdata_do_sel = true;
+            continue;
+        }
+        else if(strcmp("no-sel", argv[i]) == 0) {
+            netdata_do_sel = false;
+            continue;
+        }
+        else if(strcmp("reread-sdr-cache", argv[i]) == 0) {
+            global_sel_flags |= IPMI_MONITORING_SEL_FLAGS_REREAD_SDR_CACHE;
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_REREAD_SDR_CACHE;
+            remove_reread_sdr_after_first_use = false;
+            if (debug) fprintf(stderr, "%s: reread-sdr-cache enabled for both sensors and SEL\n", program_name);
+        }
+        else if(strcmp("interpret-oem-data", argv[i]) == 0) {
+            global_sel_flags |= IPMI_MONITORING_SEL_FLAGS_INTERPRET_OEM_DATA;
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_INTERPRET_OEM_DATA;
+            if (debug) fprintf(stderr, "%s: interpret-oem-data enabled for both sensors and SEL\n", program_name);
+        }
+        else if(strcmp("assume-system-event-record", argv[i]) == 0) {
+            global_sel_flags |= IPMI_MONITORING_SEL_FLAGS_ASSUME_SYSTEM_EVENT_RECORD;
+            if (debug) fprintf(stderr, "%s: assume-system-event-record enabled\n", program_name);
+        }
+        else if(strcmp("ignore-non-interpretable-sensors", argv[i]) == 0) {
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_IGNORE_NON_INTERPRETABLE_SENSORS;
+            if (debug) fprintf(stderr, "%s: ignore-non-interpretable-sensors enabled\n", program_name);
+        }
+        else if(strcmp("bridge-sensors", argv[i]) == 0) {
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_BRIDGE_SENSORS;
+            if (debug) fprintf(stderr, "%s: bridge-sensors enabled\n", program_name);
+        }
+        else if(strcmp("shared-sensors", argv[i]) == 0) {
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_SHARED_SENSORS;
+            if (debug) fprintf(stderr, "%s: shared-sensors enabled\n", program_name);
+        }
+        else if(strcmp("no-discrete-reading", argv[i]) == 0) {
+            global_sensor_reading_flags &= ~(IPMI_MONITORING_SENSOR_READING_FLAGS_DISCRETE_READING);
+            if (debug) fprintf(stderr, "%s: discrete-reading disabled\n", program_name);
+        }
+        else if(strcmp("ignore-scanning-disabled", argv[i]) == 0) {
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_IGNORE_SCANNING_DISABLED;
+            if (debug) fprintf(stderr, "%s: ignore-scanning-disabled enabled\n", program_name);
+        }
+        else if(strcmp("assume-bmc-owner", argv[i]) == 0) {
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_ASSUME_BMC_OWNER;
+            if (debug) fprintf(stderr, "%s: assume-bmc-owner enabled\n", program_name);
+        }
+#if defined(IPMI_MONITORING_SEL_FLAGS_ENTITY_SENSOR_NAMES) && defined(IPMI_MONITORING_SENSOR_READING_FLAGS_ENTITY_SENSOR_NAMES)
+        else if(strcmp("entity-sensor-names", argv[i]) == 0) {
+            global_sel_flags |= IPMI_MONITORING_SEL_FLAGS_ENTITY_SENSOR_NAMES;
+            global_sensor_reading_flags |= IPMI_MONITORING_SENSOR_READING_FLAGS_ENTITY_SENSOR_NAMES;
+            if (debug) fprintf(stderr, "%s: entity-sensor-names enabled for both sensors and SEL\n", program_name);
+        }
+#endif
+        else if(strcmp("-h", argv[i]) == 0 || strcmp("--help", argv[i]) == 0) {
+            fprintf(stderr,
+                    "\n"
+                    " netdata %s %s\n"
+                    " Copyright (C) 2023 Netdata Inc.\n"
+                    " Released under GNU General Public License v3 or later.\n"
+                    " All rights reserved.\n"
+                    "\n"
+                    " This program is a data collector plugin for netdata.\n"
+                    "\n"
+                    " Available command line options:\n"
+                    "\n"
+                    "  SECONDS                 data collection frequency\n"
+                    "                          minimum: %d\n"
+                    "\n"
+                    "  debug                   enable verbose output\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  sel\n"
+                    "  no-sel                  enable/disable SEL collection\n"
+                    "                          default: %s\n"
+                    "\n"
+                    "  reread-sdr-cache        re-read SDR cache on every iteration\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  interpret-oem-data      attempt to parse OEM data\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  assume-system-event-record \n"
+                    "                          tread illegal SEL events records as normal\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  ignore-non-interpretable-sensors \n"
+                    "                          do not read sensors that cannot be interpreted\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  bridge-sensors          bridge sensors not owned by the BMC\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  shared-sensors          enable shared sensors, if found\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  no-discrete-reading     do not read sensors that their event/reading type code is invalid\n"
+                    "                          default: enabled\n"
+                    "\n"
+                    "  ignore-scanning-disabled \n"
+                    "                          Ignore the scanning bit and read sensors no matter what\n"
+                    "                          default: disabled\n"
+                    "\n"
+                    "  assume-bmc-owner        assume the BMC is the sensor owner no matter what\n"
+                    "                          (usually bridging is required too)\n"
+                    "                          default: disabled\n"
+                    "\n"
+#if defined(IPMI_MONITORING_SEL_FLAGS_ENTITY_SENSOR_NAMES) && defined(IPMI_MONITORING_SENSOR_READING_FLAGS_ENTITY_SENSOR_NAMES)
+                    "  entity-sensor-names     sensor names prefixed with entity id and instance\n"
+                    "                          default: disabled\n"
+                    "\n"
+#endif
+                    "  hostname HOST\n"
+                    "  username USER\n"
+                    "  password PASS           connect to remote IPMI host\n"
+                    "                          default: local IPMI processor\n"
+                    "\n"
+                    "  no-auth-code-check\n"
+                    "  noauthcodecheck         don't check the authentication codes returned\n"
+                    "\n"
+                    " driver-type IPMIDRIVER\n"
+                    "                          Specify the driver type to use instead of doing an auto selection. \n"
+                    "                          The currently available outofband drivers are LAN and LAN_2_0,\n"
+                    "                          which  perform  IPMI  1.5  and  IPMI  2.0 respectively. \n"
+                    "                          The currently available inband drivers are KCS, SSIF, OPENIPMI and SUNBMC.\n"
+                    "\n"
+                    "  sdr-cache-dir PATH      directory for SDR cache files\n"
+                    "                          default: %s\n"
+                    "\n"
+                    "  sensor-config-file FILE filename to read sensor configuration\n"
+                    "                          default: %s\n"
+                    "\n"
+                    "  sel-config-file FILE    filename to read sel configuration\n"
+                    "                          default: %s\n"
+                    "\n"
+                    "  ignore N1,N2,N3,...     sensor IDs to ignore\n"
+                    "                          default: none\n"
+                    "\n"
+                    "  ignore-status N1,N2,N3,... sensor IDs to ignore status (nominal/warning/critical)\n"
+                    "                          default: none\n"
+                    "\n"
+                    "  -v\n"
+                    "  -V\n"
+                    "  version                 print version and exit\n"
+                    "\n"
+                    " Linux kernel module for IPMI is CPU hungry.\n"
+                    " On Linux run this to lower kipmiN CPU utilization:\n"
+                    " # echo 10 > /sys/module/ipmi_si/parameters/kipmid_max_busy_us\n"
+                    "\n"
+                    " or create: /etc/modprobe.d/ipmi.conf with these contents:\n"
+                    " options ipmi_si kipmid_max_busy_us=10\n"
+                    "\n"
+                    " For more information:\n"
+                    " https://github.com/netdata/netdata/tree/master/collectors/freeipmi.plugin\n"
+                    "\n"
+                    , program_name, VERSION
+                    , update_every
+                    , netdata_do_sel?"enabled":"disabled"
+                    , sdr_cache_directory?sdr_cache_directory:"system default"
+                    , sensor_config_file?sensor_config_file:"system default"
+                    , sel_config_file?sel_config_file:"system default"
+            );
+            exit(1);
+        }
+        else if(i < argc && strcmp("hostname", argv[i]) == 0) {
+            hostname = strdupz(argv[++i]);
+            char *s = argv[i];
+            // mask it be hidden from the process tree
+            while(*s) *s++ = 'x';
+            if(debug) fprintf(stderr, "%s: hostname set to '%s'\n", program_name, hostname);
+            continue;
+        }
+        else if(i < argc && strcmp("username", argv[i]) == 0) {
+            username = strdupz(argv[++i]);
+            char *s = argv[i];
+            // mask it be hidden from the process tree
+            while(*s) *s++ = 'x';
+            if(debug) fprintf(stderr, "%s: username set to '%s'\n", program_name, username);
+            continue;
+        }
+        else if(i < argc && strcmp("password", argv[i]) == 0) {
+            password = strdupz(argv[++i]);
+            char *s = argv[i];
+            // mask it be hidden from the process tree
+            while(*s) *s++ = 'x';
+            if(debug) fprintf(stderr, "%s: password set to '%s'\n", program_name, password);
+            continue;
+        }
+        else if(strcmp("driver-type", argv[i]) == 0) {
+            if (hostname) {
+                protocol_version = netdata_parse_outofband_driver_type(argv[++i]);
+                if(debug) fprintf(stderr, "%s: outband protocol version set to '%d'\n",
+                                  program_name, protocol_version);
+            }
+            else {
+                driver_type = netdata_parse_inband_driver_type(argv[++i]);
+                if(debug) fprintf(stderr, "%s: inband driver type set to '%d'\n",
+                                  program_name, driver_type);
+            }
+            continue;
+        } else if (i < argc && (strcmp("noauthcodecheck", argv[i]) == 0 || strcmp("no-auth-code-check", argv[i]) == 0)) {
+            if (!hostname || netdata_host_is_localhost(hostname)) {
+                if (debug)
+                    fprintf(stderr, "%s: noauthcodecheck workaround flag is ignored for inband configuration\n",
+                            program_name);
+
+            }
+            else if (protocol_version < 0 || protocol_version == IPMI_MONITORING_PROTOCOL_VERSION_1_5) {
+                workaround_flags |= IPMI_MONITORING_WORKAROUND_FLAGS_PROTOCOL_VERSION_1_5_NO_AUTH_CODE_CHECK;
+
+                if (debug)
+                    fprintf(stderr, "%s: noauthcodecheck workaround flag enabled\n", program_name);
+            }
+            else {
+                if (debug)
+                    fprintf(stderr, "%s: noauthcodecheck workaround flag is ignored for protocol version 2.0\n",
+                            program_name);
+            }
+            continue;
+        }
+        else if(i < argc && strcmp("sdr-cache-dir", argv[i]) == 0) {
+            sdr_cache_directory = argv[++i];
+
+            if(debug)
+                fprintf(stderr, "%s: SDR cache directory set to '%s'\n", program_name, sdr_cache_directory);
+
+            continue;
+        }
+        else if(i < argc && strcmp("sensor-config-file", argv[i]) == 0) {
+            sensor_config_file = argv[++i];
+            if(debug) fprintf(stderr, "%s: sensor config file set to '%s'\n", program_name, sensor_config_file);
+            continue;
+        }
+        else if(i < argc && strcmp("sel-config-file", argv[i]) == 0) {
+            sel_config_file = argv[++i];
+            if(debug) fprintf(stderr, "%s: sel config file set to '%s'\n", program_name, sel_config_file);
+            continue;
+        }
+        else if(i < argc && strcmp("ignore", argv[i]) == 0) {
+            excluded_record_ids_parse(argv[++i], debug);
+            continue;
+        }
+        else if(i < argc && strcmp("ignore-status", argv[i]) == 0) {
+            excluded_status_record_ids_parse(argv[++i], debug);
+            continue;
+        }
+
+        collector_error("%s(): ignoring parameter '%s'", __FUNCTION__, argv[i]);
+    }
+
+    errno = 0;
+
+    if(freq_s && freq_s < update_every)
+        collector_info("%s(): update frequency %d seconds is too small for IPMI. Using %d.",
+                        __FUNCTION__, freq_s, update_every);
+
+    update_every = freq_s = MAX(freq_s, update_every);
+    update_every_sel = MAX(update_every, update_every_sel);
+
+    // ------------------------------------------------------------------------
+    // initialize IPMI
+
+    if(debug) {
+        fprintf(stderr, "%s: calling ipmi_monitoring_init()\n", program_name);
+        ipmimonitoring_init_flags |= IPMI_MONITORING_FLAGS_DEBUG|IPMI_MONITORING_FLAGS_DEBUG_IPMI_PACKETS;
+    }
+
+    int rc;
+    if(ipmi_monitoring_init(ipmimonitoring_init_flags, &rc) < 0)
+        fatal("ipmi_monitoring_init: %s", ipmi_monitoring_ctx_strerror(rc));
+
+    // ------------------------------------------------------------------------
+    // create the data collection threads
+
+    struct ipmi_collection_thread sensors_data = {
+            .type = IPMI_COLLECT_TYPE_SENSORS,
+            .freq_s = update_every,
+            .spinlock = NETDATA_SPINLOCK_INITIALIZER,
+            .debug = debug,
+            .state = {
+                    .debug = debug,
+                    .sensors = {
+                            .status = ICS_INIT,
+                            .last_iteration_ut = now_monotonic_usec(),
+                            .freq_ut = update_every * USEC_PER_SEC,
+                            .priority = IPMI_SENSORS_DASHBOARD_PRIORITY,
+                            .dict = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE|DICT_OPTION_FIXED_SIZE, NULL, sizeof(struct sensor)),
+                    },
+            },
+    }, sel_data = {
+            .type = IPMI_COLLECT_TYPE_SEL,
+            .freq_s = update_every_sel,
+            .spinlock = NETDATA_SPINLOCK_INITIALIZER,
+            .debug = debug,
+            .state = {
+                    .debug = debug,
+                    .sel = {
+                            .status = ICS_INIT,
+                            .last_iteration_ut = now_monotonic_usec(),
+                            .freq_ut = update_every_sel * USEC_PER_SEC,
+                            .priority = IPMI_SEL_DASHBOARD_PRIORITY,
+                    },
+            },
+    };
+
+    netdata_thread_t sensors_thread = 0, sel_thread = 0;
+
+    netdata_thread_create(&sensors_thread, "IPMI[sensors]", NETDATA_THREAD_OPTION_DONT_LOG, netdata_ipmi_collection_thread, &sensors_data);
+
+    if(netdata_do_sel)
+        netdata_thread_create(&sel_thread, "IPMI[sel]", NETDATA_THREAD_OPTION_DONT_LOG, netdata_ipmi_collection_thread, &sel_data);
+
+    // ------------------------------------------------------------------------
+    // the main loop
+
+    if(debug) fprintf(stderr, "%s: starting data collection\n", program_name);
+
+    time_t started_t = now_monotonic_sec();
+
+    size_t iteration = 0;
+    usec_t step = 100 * USEC_PER_MS;
+    bool global_chart_created = false;
+    bool tty = isatty(fileno(stderr)) == 1;
+
+    heartbeat_t hb;
+    heartbeat_init(&hb);
+
+    for(iteration = 0; 1 ; iteration++) {
+        usec_t dt = heartbeat_next(&hb, step);
+
+        if (!tty) {
+            netdata_mutex_lock(&stdout_mutex);
+            fprintf(stdout, "\n"); // keepalive to avoid parser read timeout (2 minutes) during ipmi_detect_speed_secs()
+            fflush(stdout);
+            netdata_mutex_unlock(&stdout_mutex);
+        }
+
+        spinlock_lock(&sensors_data.spinlock);
+        state.sensors = sensors_data.state.sensors;
+        spinlock_unlock(&sensors_data.spinlock);
+
+        spinlock_lock(&sel_data.spinlock);
+        state.sel = sel_data.state.sel;
+        spinlock_unlock(&sel_data.spinlock);
+
+        switch(state.sensors.status) {
+            case ICS_RUNNING:
+                step = update_every * USEC_PER_SEC;
+                if(state.sensors.last_iteration_ut < now_monotonic_usec() - IPMI_RESTART_IF_SENSORS_DONT_ITERATE_EVERY_SECONDS * USEC_PER_SEC) {
+                    collector_error("%s(): sensors have not be collected for %zu seconds. Exiting to restart.",
+                                    __FUNCTION__, (size_t)((now_monotonic_usec() - state.sensors.last_iteration_ut) / USEC_PER_SEC));
+
+                    fprintf(stdout, "EXIT\n");
+                    plugin_exit(0);
+                }
+                break;
+
+            case ICS_INIT:
+                continue;
+
+            case ICS_INIT_FAILED:
+                collector_error("%s(): sensors failed to initialize. Calling DISABLE.", __FUNCTION__);
+                fprintf(stdout, "DISABLE\n");
+                plugin_exit(0);
+
+            case ICS_FAILED:
+                collector_error("%s(): sensors fails repeatedly to collect metrics. Exiting to restart.", __FUNCTION__);
+                fprintf(stdout, "EXIT\n");
+                plugin_exit(0);
+        }
+
+        if(netdata_do_sel) {
+            switch (state.sensors.status) {
+                case ICS_RUNNING:
+                case ICS_INIT:
+                    break;
+
+                case ICS_INIT_FAILED:
+                case ICS_FAILED:
+                    collector_error("%s(): SEL fails to collect events. Disabling SEL collection.", __FUNCTION__);
+                    netdata_do_sel = false;
+                    break;
+            }
+        }
+
+        if(unlikely(debug))
+            fprintf(stderr, "%s: calling send_ipmi_sensor_metrics_to_netdata()\n", program_name);
+
+        static bool add_func_sensors = true;
+        if (add_func_sensors) {
+            add_func_sensors = false;
+            struct functions_evloop_globals *wg =
+                functions_evloop_init(1, "FREEIPMI", &stdout_mutex, &function_plugin_should_exit);
+            functions_evloop_add_function(
+                wg, "ipmi-sensors", freeimi_function_sensors, PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT);
+            FREEIPMI_GLOBAL_FUNCTION_SENSORS();
+        }
+
+        state.updates.now_ut = now_monotonic_usec();
+        send_ipmi_sensor_metrics_to_netdata(&state);
+
+        if(netdata_do_sel)
+            send_ipmi_sel_metrics_to_netdata(&state);
+
+        if(unlikely(debug))
+            fprintf(stderr, "%s: iteration %zu, dt %"PRIu64" usec, sensors ever collected %zu, sensors last collected %zu \n"
+                    , program_name
+                    , iteration
+                    , dt
+                    , dictionary_entries(state.sensors.dict)
+                    , state.sensors.collected
+            );
+
+        netdata_mutex_lock(&stdout_mutex);
+
+        if (!global_chart_created) {
+            global_chart_created = true;
+
+            fprintf(stdout,
+                    "CHART netdata.freeipmi_availability_status '' 'Plugin availability status' 'status' "
+                    "plugins netdata.plugin_availability_status line 146000 %d '' '%s' '%s'\n"
+                    "DIMENSION available '' absolute 1 1\n",
+                    update_every, program_name, "");
+        }
+
+        fprintf(stdout,
+                "BEGIN netdata.freeipmi_availability_status\n"
+                "SET available = 1\n"
+                "END\n");
+
+        // restart check (14400 seconds)
+        if (now_monotonic_sec() - started_t > IPMI_RESTART_EVERY_SECONDS) {
+            collector_info("%s(): reached my lifetime expectancy. Exiting to restart.", __FUNCTION__);
+            fprintf(stdout, "EXIT\n");
+            plugin_exit(0);
+        }
+
+        fflush(stdout);
+
+        netdata_mutex_unlock(&stdout_mutex);
+    }
+}