// SPDX-License-Identifier: GPL-3.0-or-later #include "daemon/common.h" #define RRD_TYPE_TC "tc" #define PLUGIN_TC_NAME "tc.plugin" // ---------------------------------------------------------------------------- // /sbin/tc processor // this requires the script plugins.d/tc-qos-helper.sh #define TC_LINE_MAX 1024 struct tc_class { STRING *id; STRING *name; STRING *leafid; STRING *parentid; bool hasparent; bool isleaf; bool isqdisc; bool render; bool name_updated; bool updated; int unupdated; // the number of times, this has been found un-updated unsigned long long bytes; unsigned long long packets; unsigned long long dropped; unsigned long long tokens; unsigned long long ctokens; //unsigned long long overlimits; //unsigned long long requeues; //unsigned long long lended; //unsigned long long borrowed; //unsigned long long giants; RRDDIM *rd_bytes; RRDDIM *rd_packets; RRDDIM *rd_dropped; RRDDIM *rd_tokens; RRDDIM *rd_ctokens; }; struct tc_device { STRING *id; STRING *name; STRING *family; bool name_updated; bool family_updated; char enabled; char enabled_bytes; char enabled_packets; char enabled_dropped; char enabled_tokens; char enabled_ctokens; char enabled_all_classes_qdiscs; RRDSET *st_bytes; RRDSET *st_packets; RRDSET *st_dropped; RRDSET *st_tokens; RRDSET *st_ctokens; DICTIONARY *classes; }; // ---------------------------------------------------------------------------- // tc_class index static void tc_class_free_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *data __maybe_unused) { // struct tc_device *d = data; struct tc_class *c = value; string_freez(c->id); string_freez(c->name); string_freez(c->leafid); string_freez(c->parentid); } static bool tc_class_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *old_value, void *new_value, void *data __maybe_unused) { struct tc_device *d = data; (void)d; struct tc_class *c = old_value; (void)c; struct tc_class *new_c = new_value; (void)new_c; error("TC: class '%s' is already in device '%s'. Ignoring duplicate.", dictionary_acquired_item_name(item), string2str(d->id)); tc_class_free_callback(item, new_value, data); return true; } static void tc_class_index_init(struct tc_device *d) { if(!d->classes) { d->classes = dictionary_create(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_SINGLE_THREADED); dictionary_register_delete_callback(d->classes, tc_class_free_callback, d); dictionary_register_conflict_callback(d->classes, tc_class_conflict_callback, d); } } static void tc_class_index_destroy(struct tc_device *d) { dictionary_destroy(d->classes); d->classes = NULL; } static struct tc_class *tc_class_index_add(struct tc_device *d, struct tc_class *c) { return dictionary_set(d->classes, string2str(c->id), c, sizeof(*c)); } static void tc_class_index_del(struct tc_device *d, struct tc_class *c) { dictionary_del(d->classes, string2str(c->id)); } static inline struct tc_class *tc_class_index_find(struct tc_device *d, const char *id) { return dictionary_get(d->classes, id); } // ---------------------------------------------------------------------------- // tc_device index static DICTIONARY *tc_device_root_index = NULL; static void tc_device_add_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *data __maybe_unused) { struct tc_device *d = value; tc_class_index_init(d); } static void tc_device_free_callback(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *data __maybe_unused) { struct tc_device *d = value; tc_class_index_destroy(d); string_freez(d->id); string_freez(d->name); string_freez(d->family); } static void tc_device_index_init() { if(!tc_device_root_index) { tc_device_root_index = dictionary_create( DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_SINGLE_THREADED | DICT_OPTION_ADD_IN_FRONT); dictionary_register_insert_callback(tc_device_root_index, tc_device_add_callback, NULL); dictionary_register_delete_callback(tc_device_root_index, tc_device_free_callback, NULL); } } static void tc_device_index_destroy() { dictionary_destroy(tc_device_root_index); tc_device_root_index = NULL; } static struct tc_device *tc_device_index_add(struct tc_device *d) { return dictionary_set(tc_device_root_index, string2str(d->id), d, sizeof(*d)); } //static struct tc_device *tc_device_index_del(struct tc_device *d) { // dictionary_del(tc_device_root_index, string2str(d->id)); // return d; //} static inline struct tc_device *tc_device_index_find(const char *id) { return dictionary_get(tc_device_root_index, id); } // ---------------------------------------------------------------------------- static inline void tc_class_free(struct tc_device *n, struct tc_class *c) { debug(D_TC_LOOP, "Removing from device '%s' class '%s', parentid '%s', leafid '%s', unused=%d", string2str(n->id), string2str(c->id), string2str(c->parentid), string2str(c->leafid), c->unupdated); tc_class_index_del(n, c); } static inline void tc_device_classes_cleanup(struct tc_device *d) { static int cleanup_every = 999; if(unlikely(cleanup_every > 0)) { cleanup_every = (int) config_get_number("plugin:tc", "cleanup unused classes every", 120); if(cleanup_every < 0) cleanup_every = -cleanup_every; } d->name_updated = false; d->family_updated = false; struct tc_class *c; dfe_start_write(d->classes, c) { if(unlikely(cleanup_every && c->unupdated >= cleanup_every)) tc_class_free(d, c); else { c->updated = false; c->name_updated = false; } } dfe_done(c); } static inline void tc_device_commit(struct tc_device *d) { static int enable_new_interfaces = -1, enable_bytes = -1, enable_packets = -1, enable_dropped = -1, enable_tokens = -1, enable_ctokens = -1, enabled_all_classes_qdiscs = -1; if(unlikely(enable_new_interfaces == -1)) { enable_new_interfaces = config_get_boolean_ondemand("plugin:tc", "enable new interfaces detected at runtime", CONFIG_BOOLEAN_YES); enable_bytes = config_get_boolean_ondemand("plugin:tc", "enable traffic charts for all interfaces", CONFIG_BOOLEAN_AUTO); enable_packets = config_get_boolean_ondemand("plugin:tc", "enable packets charts for all interfaces", CONFIG_BOOLEAN_AUTO); enable_dropped = config_get_boolean_ondemand("plugin:tc", "enable dropped charts for all interfaces", CONFIG_BOOLEAN_AUTO); enable_tokens = config_get_boolean_ondemand("plugin:tc", "enable tokens charts for all interfaces", CONFIG_BOOLEAN_NO); enable_ctokens = config_get_boolean_ondemand("plugin:tc", "enable ctokens charts for all interfaces", CONFIG_BOOLEAN_NO); enabled_all_classes_qdiscs = config_get_boolean_ondemand("plugin:tc", "enable show all classes and qdiscs for all interfaces", CONFIG_BOOLEAN_NO); } if(unlikely(d->enabled == (char)-1)) { char var_name[CONFIG_MAX_NAME + 1]; snprintfz(var_name, CONFIG_MAX_NAME, "qos for %s", string2str(d->id)); d->enabled = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_new_interfaces); snprintfz(var_name, CONFIG_MAX_NAME, "traffic chart for %s", string2str(d->id)); d->enabled_bytes = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_bytes); snprintfz(var_name, CONFIG_MAX_NAME, "packets chart for %s", string2str(d->id)); d->enabled_packets = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_packets); snprintfz(var_name, CONFIG_MAX_NAME, "dropped packets chart for %s", string2str(d->id)); d->enabled_dropped = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_dropped); snprintfz(var_name, CONFIG_MAX_NAME, "tokens chart for %s", string2str(d->id)); d->enabled_tokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_tokens); snprintfz(var_name, CONFIG_MAX_NAME, "ctokens chart for %s", string2str(d->id)); d->enabled_ctokens = (char)config_get_boolean_ondemand("plugin:tc", var_name, enable_ctokens); snprintfz(var_name, CONFIG_MAX_NAME, "show all classes for %s", string2str(d->id)); d->enabled_all_classes_qdiscs = (char)config_get_boolean_ondemand("plugin:tc", var_name, enabled_all_classes_qdiscs); } // we only need to add leaf classes struct tc_class *c, *x /*, *root = NULL */; unsigned long long bytes_sum = 0, packets_sum = 0, dropped_sum = 0, tokens_sum = 0, ctokens_sum = 0; int active_nodes = 0, updated_classes = 0, updated_qdiscs = 0; // prepare all classes // we set reasonable defaults for the rest of the code below dfe_start_read(d->classes, c) { c->render = false; // do not render this class c->isleaf = true; // this is a leaf class c->hasparent = false; // without a parent if(unlikely(!c->updated)) c->unupdated++; // increase its unupdated counter else { c->unupdated = 0; // reset its unupdated counter // count how many of each kind if(c->isqdisc) updated_qdiscs++; else updated_classes++; } } dfe_done(c); if(unlikely(!d->enabled || (!updated_classes && !updated_qdiscs))) { debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. It is not enabled/updated.", string2str(d->name?d->name:d->id)); tc_device_classes_cleanup(d); return; } if(unlikely(updated_classes && updated_qdiscs)) { error("TC: device '%s' has active both classes (%d) and qdiscs (%d). Will render only qdiscs.", string2str(d->id), updated_classes, updated_qdiscs); // set all classes to !updated dfe_start_read(d->classes, c) { if (unlikely(!c->isqdisc && c->updated)) c->updated = false; } dfe_done(c); updated_classes = 0; } // mark the classes as leafs and parents // // TC is hierarchical: // - classes can have other classes in them // - the same is true for qdiscs (i.e. qdiscs have classes, that have other qdiscs) // // we need to present a chart with leaf nodes only, so that the sum // of all dimensions of the chart, will be the total utilization // of the interface. // // here we try to find the ones we need to report // by default all nodes are marked with: isleaf = 1 (see above) // // so, here we remove the isleaf flag from nodes in the middle // and we add the hasparent flag to leaf nodes we found their parent if(likely(!d->enabled_all_classes_qdiscs)) { dfe_start_read(d->classes, c) { if(unlikely(!c->updated)) continue; //debug(D_TC_LOOP, "TC: In device '%s', %s '%s' has leafid: '%s' and parentid '%s'.", // d->id, // c->isqdisc?"qdisc":"class", // c->id, // c->leafid?c->leafid:"NULL", // c->parentid?c->parentid:"NULL"); // find if c is leaf or not dfe_start_read(d->classes, x) { if(unlikely(!x->updated || c == x || !x->parentid)) continue; // classes have both parentid and leafid // qdiscs have only parentid // the following works for both (it is an OR) if((x->parentid && c->id == x->parentid) || (c->leafid && x->parentid && c->leafid == x->parentid)) { // debug(D_TC_LOOP, "TC: In device '%s', %s '%s' (leafid: '%s') has as leaf %s '%s' (parentid: '%s').", d->name?d->name:d->id, c->isqdisc?"qdisc":"class", c->name?c->name:c->id, c->leafid?c->leafid:c->id, x->isqdisc?"qdisc":"class", x->name?x->name:x->id, x->parentid?x->parentid:x->id); c->isleaf = false; x->hasparent = true; } } dfe_done(x); } dfe_done(c); } dfe_start_read(d->classes, c) { if(unlikely(!c->updated)) continue; // debug(D_TC_LOOP, "TC: device '%s', %s '%s' isleaf=%d, hasparent=%d", d->id, (c->isqdisc)?"qdisc":"class", c->id, c->isleaf, c->hasparent); if(unlikely((c->isleaf && c->hasparent) || d->enabled_all_classes_qdiscs)) { c->render = true; active_nodes++; bytes_sum += c->bytes; packets_sum += c->packets; dropped_sum += c->dropped; tokens_sum += c->tokens; ctokens_sum += c->ctokens; } //if(unlikely(!c->hasparent)) { // if(root) error("TC: multiple root class/qdisc for device '%s' (old: '%s', new: '%s')", d->id, root->id, c->id); // root = c; // debug(D_TC_LOOP, "TC: found root class/qdisc '%s'", root->id); //} } dfe_done(c); #ifdef NETDATA_INTERNAL_CHECKS // dump all the list to see what we know if(unlikely(debug_flags & D_TC_LOOP)) { dfe_start_read(d->classes, c) { if(c->render) debug(D_TC_LOOP, "TC: final nodes dump for '%s': class %s, OK", string2str(d->name), string2str(c->id)); else debug(D_TC_LOOP, "TC: final nodes dump for '%s': class '%s', IGNORE (updated: %d, isleaf: %d, hasparent: %d, parent: '%s')", string2str(d->name?d->name:d->id), string2str(c->id), c->updated, c->isleaf, c->hasparent, string2str(c->parentid)); } dfe_done(c); } #endif if(unlikely(!active_nodes)) { debug(D_TC_LOOP, "TC: Ignoring TC device '%s'. No useful classes/qdiscs.", string2str(d->name?d->name:d->id)); tc_device_classes_cleanup(d); return; } debug(D_TC_LOOP, "TC: evaluating TC device '%s'. enabled = %d/%d (bytes: %d/%d, packets: %d/%d, dropped: %d/%d, tokens: %d/%d, ctokens: %d/%d, all_classes_qdiscs: %d/%d), classes: (bytes = %llu, packets = %llu, dropped = %llu, tokens = %llu, ctokens = %llu).", string2str(d->name?d->name:d->id), d->enabled, enable_new_interfaces, d->enabled_bytes, enable_bytes, d->enabled_packets, enable_packets, d->enabled_dropped, enable_dropped, d->enabled_tokens, enable_tokens, d->enabled_ctokens, enable_ctokens, d->enabled_all_classes_qdiscs, enabled_all_classes_qdiscs, bytes_sum, packets_sum, dropped_sum, tokens_sum, ctokens_sum ); // -------------------------------------------------------------------- // bytes if(d->enabled_bytes == CONFIG_BOOLEAN_YES || (d->enabled_bytes == CONFIG_BOOLEAN_AUTO && (bytes_sum || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) { d->enabled_bytes = CONFIG_BOOLEAN_YES; if(unlikely(!d->st_bytes)) { d->st_bytes = rrdset_create_localhost( RRD_TYPE_TC, string2str(d->id), string2str(d->name ? d->name : d->id), string2str(d->family ? d->family : d->id), RRD_TYPE_TC ".qos", "Class Usage", "kilobits/s", PLUGIN_TC_NAME, NULL, NETDATA_CHART_PRIO_TC_QOS, localhost->rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED); rrdlabels_add(d->st_bytes->rrdlabels, "device", string2str(d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name?d->name:d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family?d->family:d->id), RRDLABEL_SRC_AUTO); } else { if(unlikely(d->name_updated)) rrdset_reset_name(d->st_bytes, string2str(d->name)); if(d->name && d->name_updated) rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name), RRDLABEL_SRC_AUTO); if(d->family && d->family_updated) rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family), RRDLABEL_SRC_AUTO); // TODO // update the family } dfe_start_read(d->classes, c) { if(unlikely(!c->render)) continue; if(unlikely(!c->rd_bytes)) c->rd_bytes = rrddim_add(d->st_bytes, string2str(c->id), string2str(c->name?c->name:c->id), 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL); else if(unlikely(c->name_updated)) rrddim_reset_name(d->st_bytes, c->rd_bytes, string2str(c->name)); rrddim_set_by_pointer(d->st_bytes, c->rd_bytes, c->bytes); } dfe_done(c); rrdset_done(d->st_bytes); } // -------------------------------------------------------------------- // packets if(d->enabled_packets == CONFIG_BOOLEAN_YES || (d->enabled_packets == CONFIG_BOOLEAN_AUTO && (packets_sum || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) { d->enabled_packets = CONFIG_BOOLEAN_YES; if(unlikely(!d->st_packets)) { char id[RRD_ID_LENGTH_MAX + 1]; char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(id, RRD_ID_LENGTH_MAX, "%s_packets", string2str(d->id)); snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", string2str(d->name ? d->name : d->id)); d->st_packets = rrdset_create_localhost( RRD_TYPE_TC, id, name, string2str(d->family ? d->family : d->id), RRD_TYPE_TC ".qos_packets", "Class Packets", "packets/s", PLUGIN_TC_NAME, NULL, NETDATA_CHART_PRIO_TC_QOS_PACKETS, localhost->rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED); rrdlabels_add(d->st_bytes->rrdlabels, "device", string2str(d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name?d->name:d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family?d->family:d->id), RRDLABEL_SRC_AUTO); } else { if(unlikely(d->name_updated)) { char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(name, RRD_ID_LENGTH_MAX, "%s_packets", string2str(d->name?d->name:d->id)); rrdset_reset_name(d->st_packets, name); } if(d->name && d->name_updated) rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name), RRDLABEL_SRC_AUTO); if(d->family && d->family_updated) rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family), RRDLABEL_SRC_AUTO); // TODO // update the family } dfe_start_read(d->classes, c) { if(unlikely(!c->render)) continue; if(unlikely(!c->rd_packets)) c->rd_packets = rrddim_add(d->st_packets, string2str(c->id), string2str(c->name?c->name:c->id), 1, 1, RRD_ALGORITHM_INCREMENTAL); else if(unlikely(c->name_updated)) rrddim_reset_name(d->st_packets, c->rd_packets, string2str(c->name)); rrddim_set_by_pointer(d->st_packets, c->rd_packets, c->packets); } dfe_done(c); rrdset_done(d->st_packets); } // -------------------------------------------------------------------- // dropped if(d->enabled_dropped == CONFIG_BOOLEAN_YES || (d->enabled_dropped == CONFIG_BOOLEAN_AUTO && (dropped_sum || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) { d->enabled_dropped = CONFIG_BOOLEAN_YES; if(unlikely(!d->st_dropped)) { char id[RRD_ID_LENGTH_MAX + 1]; char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(id, RRD_ID_LENGTH_MAX, "%s_dropped", string2str(d->id)); snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", string2str(d->name ? d->name : d->id)); d->st_dropped = rrdset_create_localhost( RRD_TYPE_TC, id, name, string2str(d->family ? d->family : d->id), RRD_TYPE_TC ".qos_dropped", "Class Dropped Packets", "packets/s", PLUGIN_TC_NAME, NULL, NETDATA_CHART_PRIO_TC_QOS_DROPPED, localhost->rrd_update_every, d->enabled_all_classes_qdiscs ? RRDSET_TYPE_LINE : RRDSET_TYPE_STACKED); rrdlabels_add(d->st_bytes->rrdlabels, "device", string2str(d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name?d->name:d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family?d->family:d->id), RRDLABEL_SRC_AUTO); } else { if(unlikely(d->name_updated)) { char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(name, RRD_ID_LENGTH_MAX, "%s_dropped", string2str(d->name?d->name:d->id)); rrdset_reset_name(d->st_dropped, name); } if(d->name && d->name_updated) rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name), RRDLABEL_SRC_AUTO); if(d->family && d->family_updated) rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family), RRDLABEL_SRC_AUTO); // TODO // update the family } dfe_start_read(d->classes, c) { if(unlikely(!c->render)) continue; if(unlikely(!c->rd_dropped)) c->rd_dropped = rrddim_add(d->st_dropped, string2str(c->id), string2str(c->name?c->name:c->id), 1, 1, RRD_ALGORITHM_INCREMENTAL); else if(unlikely(c->name_updated)) rrddim_reset_name(d->st_dropped, c->rd_dropped, string2str(c->name)); rrddim_set_by_pointer(d->st_dropped, c->rd_dropped, c->dropped); } dfe_done(c); rrdset_done(d->st_dropped); } // -------------------------------------------------------------------- // tokens if(d->enabled_tokens == CONFIG_BOOLEAN_YES || (d->enabled_tokens == CONFIG_BOOLEAN_AUTO && (tokens_sum || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) { d->enabled_tokens = CONFIG_BOOLEAN_YES; if(unlikely(!d->st_tokens)) { char id[RRD_ID_LENGTH_MAX + 1]; char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(id, RRD_ID_LENGTH_MAX, "%s_tokens", string2str(d->id)); snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", string2str(d->name ? d->name : d->id)); d->st_tokens = rrdset_create_localhost( RRD_TYPE_TC, id, name, string2str(d->family ? d->family : d->id), RRD_TYPE_TC ".qos_tokens", "Class Tokens", "tokens", PLUGIN_TC_NAME, NULL, NETDATA_CHART_PRIO_TC_QOS_TOKENS, localhost->rrd_update_every, RRDSET_TYPE_LINE); rrdlabels_add(d->st_bytes->rrdlabels, "device", string2str(d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name?d->name:d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family?d->family:d->id), RRDLABEL_SRC_AUTO); } else { if(unlikely(d->name_updated)) { char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(name, RRD_ID_LENGTH_MAX, "%s_tokens", string2str(d->name?d->name:d->id)); rrdset_reset_name(d->st_tokens, name); } if(d->name && d->name_updated) rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name), RRDLABEL_SRC_AUTO); if(d->family && d->family_updated) rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family), RRDLABEL_SRC_AUTO); // TODO // update the family } dfe_start_read(d->classes, c) { if(unlikely(!c->render)) continue; if(unlikely(!c->rd_tokens)) { c->rd_tokens = rrddim_add(d->st_tokens, string2str(c->id), string2str(c->name?c->name:c->id), 1, 1, RRD_ALGORITHM_ABSOLUTE); } else if(unlikely(c->name_updated)) rrddim_reset_name(d->st_tokens, c->rd_tokens, string2str(c->name)); rrddim_set_by_pointer(d->st_tokens, c->rd_tokens, c->tokens); } dfe_done(c); rrdset_done(d->st_tokens); } // -------------------------------------------------------------------- // ctokens if(d->enabled_ctokens == CONFIG_BOOLEAN_YES || (d->enabled_ctokens == CONFIG_BOOLEAN_AUTO && (ctokens_sum || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) { d->enabled_ctokens = CONFIG_BOOLEAN_YES; if(unlikely(!d->st_ctokens)) { char id[RRD_ID_LENGTH_MAX + 1]; char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(id, RRD_ID_LENGTH_MAX, "%s_ctokens", string2str(d->id)); snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", string2str(d->name ? d->name : d->id)); d->st_ctokens = rrdset_create_localhost( RRD_TYPE_TC, id, name, string2str(d->family ? d->family : d->id), RRD_TYPE_TC ".qos_ctokens", "Class cTokens", "ctokens", PLUGIN_TC_NAME, NULL, NETDATA_CHART_PRIO_TC_QOS_CTOKENS, localhost->rrd_update_every, RRDSET_TYPE_LINE); rrdlabels_add(d->st_bytes->rrdlabels, "device", string2str(d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name?d->name:d->id), RRDLABEL_SRC_AUTO); rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family?d->family:d->id), RRDLABEL_SRC_AUTO); } else { debug(D_TC_LOOP, "TC: Updating _ctokens chart for device '%s'", string2str(d->name?d->name:d->id)); if(unlikely(d->name_updated)) { char name[RRD_ID_LENGTH_MAX + 1]; snprintfz(name, RRD_ID_LENGTH_MAX, "%s_ctokens", string2str(d->name?d->name:d->id)); rrdset_reset_name(d->st_ctokens, name); } if(d->name && d->name_updated) rrdlabels_add(d->st_bytes->rrdlabels, "name", string2str(d->name), RRDLABEL_SRC_AUTO); if(d->family && d->family_updated) rrdlabels_add(d->st_bytes->rrdlabels, "family", string2str(d->family), RRDLABEL_SRC_AUTO); // TODO // update the family } dfe_start_read(d->classes, c) { if(unlikely(!c->render)) continue; if(unlikely(!c->rd_ctokens)) c->rd_ctokens = rrddim_add(d->st_ctokens, string2str(c->id), string2str(c->name?c->name:c->id), 1, 1, RRD_ALGORITHM_ABSOLUTE); else if(unlikely(c->name_updated)) rrddim_reset_name(d->st_ctokens, c->rd_ctokens, string2str(c->name)); rrddim_set_by_pointer(d->st_ctokens, c->rd_ctokens, c->ctokens); } dfe_done(c); rrdset_done(d->st_ctokens); } tc_device_classes_cleanup(d); } static inline void tc_device_set_class_name(struct tc_device *d, char *id, char *name) { if(unlikely(!name || !*name)) return; struct tc_class *c = tc_class_index_find(d, id); if(likely(c)) { if(likely(c->name)) { if(!strcmp(string2str(c->name), name)) return; string_freez(c->name); c->name = NULL; } if(likely(name && *name && strcmp(string2str(c->id), name) != 0)) { debug(D_TC_LOOP, "TC: Setting device '%s', class '%s' name to '%s'", string2str(d->id), id, name); c->name = string_strdupz(name); c->name_updated = true; } } } static inline void tc_device_set_device_name(struct tc_device *d, char *name) { if(unlikely(!name || !*name)) return; if(d->name) { if(!strcmp(string2str(d->name), name)) return; string_freez(d->name); d->name = NULL; } if(likely(name && *name && strcmp(string2str(d->id), name) != 0)) { debug(D_TC_LOOP, "TC: Setting device '%s' name to '%s'", string2str(d->id), name); d->name = string_strdupz(name); d->name_updated = true; } } static inline void tc_device_set_device_family(struct tc_device *d, char *family) { string_freez(d->family); d->family = NULL; if(likely(family && *family && strcmp(string2str(d->id), family) != 0)) { debug(D_TC_LOOP, "TC: Setting device '%s' family to '%s'", string2str(d->id), family); d->family = string_strdupz(family); d->family_updated = true; } // no need for null termination - it is already null } static inline struct tc_device *tc_device_create(char *id) { struct tc_device *d = tc_device_index_find(id); if(!d) { debug(D_TC_LOOP, "TC: Creating device '%s'", id); struct tc_device tmp = { .id = string_strdupz(id), .enabled = (char)-1, }; d = tc_device_index_add(&tmp); } return(d); } static inline struct tc_class *tc_class_add(struct tc_device *n, char *id, bool qdisc, char *parentid, char *leafid) { struct tc_class *c = tc_class_index_find(n, id); if(!c) { debug(D_TC_LOOP, "TC: Creating in device '%s', class id '%s', parentid '%s', leafid '%s'", string2str(n->id), id, parentid?parentid:"", leafid?leafid:""); struct tc_class tmp = { .id = string_strdupz(id), .isqdisc = qdisc, .parentid = string_strdupz(parentid), .leafid = string_strdupz(leafid), }; tc_class_index_add(n, &tmp); } return(c); } //static inline void tc_device_free(struct tc_device *d) { // tc_device_index_del(d); //} static inline int tc_space(char c) { switch(c) { case ' ': case '\t': case '\r': case '\n': return 1; default: return 0; } } static inline void tc_split_words(char *str, char **words, int max_words) { char *s = str; int i = 0; // skip all white space while(tc_space(*s)) s++; // store the first word words[i++] = s; // while we have something while(*s) { // if it is a space if(unlikely(tc_space(*s))) { // terminate the word *s++ = '\0'; // skip all white space while(tc_space(*s)) s++; // if we reached the end, stop if(!*s) break; // store the next word if(i < max_words) words[i++] = s; else break; } else s++; } // terminate the words while(i < max_words) words[i++] = NULL; } static pid_t tc_child_pid = 0; static void tc_main_cleanup(void *ptr) { worker_unregister(); tc_device_index_destroy(); struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr; static_thread->enabled = NETDATA_MAIN_THREAD_EXITING; info("cleaning up..."); if(tc_child_pid) { info("TC: killing with SIGTERM tc-qos-helper process %d", tc_child_pid); if(killpid(tc_child_pid) != -1) { siginfo_t info; info("TC: waiting for tc plugin child process pid %d to exit...", tc_child_pid); waitid(P_PID, (id_t) tc_child_pid, &info, WEXITED); } tc_child_pid = 0; } static_thread->enabled = NETDATA_MAIN_THREAD_EXITED; } #define WORKER_TC_CLASS 0 #define WORKER_TC_BEGIN 1 #define WORKER_TC_END 2 #define WORKER_TC_SENT 3 #define WORKER_TC_LENDED 4 #define WORKER_TC_TOKENS 5 #define WORKER_TC_SETDEVICENAME 6 #define WORKER_TC_SETDEVICEGROUP 7 #define WORKER_TC_SETCLASSNAME 8 #define WORKER_TC_WORKTIME 9 #define WORKER_TC_PLUGIN_TIME 10 #define WORKER_TC_DEVICES 11 #define WORKER_TC_CLASSES 12 #if WORKER_UTILIZATION_MAX_JOB_TYPES < 13 #error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 10 #endif void *tc_main(void *ptr) { worker_register("TC"); worker_register_job_name(WORKER_TC_CLASS, "class"); worker_register_job_name(WORKER_TC_BEGIN, "begin"); worker_register_job_name(WORKER_TC_END, "end"); worker_register_job_name(WORKER_TC_SENT, "sent"); worker_register_job_name(WORKER_TC_LENDED, "lended"); worker_register_job_name(WORKER_TC_TOKENS, "tokens"); worker_register_job_name(WORKER_TC_SETDEVICENAME, "devicename"); worker_register_job_name(WORKER_TC_SETDEVICEGROUP, "devicegroup"); worker_register_job_name(WORKER_TC_SETCLASSNAME, "classname"); worker_register_job_name(WORKER_TC_WORKTIME, "worktime"); worker_register_job_custom_metric(WORKER_TC_PLUGIN_TIME, "tc script execution time", "milliseconds/run", WORKER_METRIC_ABSOLUTE); worker_register_job_custom_metric(WORKER_TC_DEVICES, "number of devices", "devices", WORKER_METRIC_ABSOLUTE); worker_register_job_custom_metric(WORKER_TC_CLASSES, "number of classes", "classes", WORKER_METRIC_ABSOLUTE); tc_device_index_init(); netdata_thread_cleanup_push(tc_main_cleanup, ptr); char command[FILENAME_MAX + 1]; char *words[PLUGINSD_MAX_WORDS] = { NULL }; uint32_t BEGIN_HASH = simple_hash("BEGIN"); uint32_t END_HASH = simple_hash("END"); uint32_t QDISC_HASH = simple_hash("qdisc"); uint32_t CLASS_HASH = simple_hash("class"); uint32_t SENT_HASH = simple_hash("Sent"); uint32_t LENDED_HASH = simple_hash("lended:"); uint32_t TOKENS_HASH = simple_hash("tokens:"); uint32_t SETDEVICENAME_HASH = simple_hash("SETDEVICENAME"); uint32_t SETDEVICEGROUP_HASH = simple_hash("SETDEVICEGROUP"); uint32_t SETCLASSNAME_HASH = simple_hash("SETCLASSNAME"); uint32_t WORKTIME_HASH = simple_hash("WORKTIME"); uint32_t first_hash; snprintfz(command, TC_LINE_MAX, "%s/tc-qos-helper.sh", netdata_configured_primary_plugins_dir); char *tc_script = config_get("plugin:tc", "script to run to get tc values", command); while(!netdata_exit) { FILE *fp_child_input, *fp_child_output; struct tc_device *device = NULL; struct tc_class *class = NULL; snprintfz(command, TC_LINE_MAX, "exec %s %d", tc_script, localhost->rrd_update_every); debug(D_TC_LOOP, "executing '%s'", command); fp_child_output = netdata_popen(command, (pid_t *)&tc_child_pid, &fp_child_input); if(unlikely(!fp_child_output)) { error("TC: Cannot popen(\"%s\", \"r\").", command); goto cleanup; } char buffer[TC_LINE_MAX+1] = ""; while(fgets(buffer, TC_LINE_MAX, fp_child_output) != NULL) { if(unlikely(netdata_exit)) break; buffer[TC_LINE_MAX] = '\0'; // debug(D_TC_LOOP, "TC: read '%s'", buffer); tc_split_words(buffer, words, PLUGINSD_MAX_WORDS); if(unlikely(!words[0] || !*words[0])) { // debug(D_TC_LOOP, "empty line"); worker_is_idle(); continue; } // else debug(D_TC_LOOP, "First word is '%s'", words[0]); first_hash = simple_hash(words[0]); if(unlikely(device && ((first_hash == CLASS_HASH && strcmp(words[0], "class") == 0) || (first_hash == QDISC_HASH && strcmp(words[0], "qdisc") == 0)))) { worker_is_busy(WORKER_TC_CLASS); // debug(D_TC_LOOP, "CLASS line on class id='%s', parent='%s', parentid='%s', leaf='%s', leafid='%s'", words[2], words[3], words[4], words[5], words[6]); char *type = words[1]; // the class/qdisc type: htb, fq_codel, etc char *id = words[2]; // the class/qdisc major:minor char *parent = words[3]; // the word 'parent' or 'root' char *parentid = words[4]; // parentid char *leaf = words[5]; // the word 'leaf' char *leafid = words[6]; // leafid int parent_is_root = 0; int parent_is_parent = 0; if(likely(parent)) { parent_is_parent = !strcmp(parent, "parent"); if(!parent_is_parent) parent_is_root = !strcmp(parent, "root"); } if(likely(type && id && (parent_is_root || parent_is_parent))) { bool qdisc = false; if(first_hash == QDISC_HASH) { qdisc = true; if(!strcmp(type, "ingress")) { // we don't want to get the ingress qdisc // there should be an IFB interface for this class = NULL; worker_is_idle(); continue; } if(parent_is_parent && parentid) { // eliminate the minor number from parentid // why: parentid is the id of the parent class // but major: is also the id of the parent qdisc char *s = parentid; while(*s && *s != ':') s++; if(*s == ':') s[1] = '\0'; } } if(parent_is_root) { parentid = NULL; leafid = NULL; } else if(!leaf || strcmp(leaf, "leaf") != 0) leafid = NULL; char leafbuf[20 + 1] = ""; if(leafid && leafid[strlen(leafid) - 1] == ':') { strncpyz(leafbuf, leafid, 20 - 1); strcat(leafbuf, "1"); leafid = leafbuf; } class = tc_class_add(device, id, qdisc, parentid, leafid); } else { // clear the last class class = NULL; } } else if(unlikely(first_hash == END_HASH && strcmp(words[0], "END") == 0)) { worker_is_busy(WORKER_TC_END); // debug(D_TC_LOOP, "END line"); if(likely(device)) { netdata_thread_disable_cancelability(); tc_device_commit(device); // tc_device_free(device); netdata_thread_enable_cancelability(); } device = NULL; class = NULL; } else if(unlikely(first_hash == BEGIN_HASH && strcmp(words[0], "BEGIN") == 0)) { worker_is_busy(WORKER_TC_BEGIN); // debug(D_TC_LOOP, "BEGIN line on device '%s'", words[1]); if(likely(words[1] && *words[1])) { device = tc_device_create(words[1]); } else { // tc_device_free(device); device = NULL; } class = NULL; } else if(unlikely(device && class && first_hash == SENT_HASH && strcmp(words[0], "Sent") == 0)) { worker_is_busy(WORKER_TC_SENT); // debug(D_TC_LOOP, "SENT line '%s'", words[1]); if(likely(words[1] && *words[1])) { class->bytes = str2ull(words[1]); class->updated = true; } else { class->updated = false; } if(likely(words[3] && *words[3])) class->packets = str2ull(words[3]); if(likely(words[6] && *words[6])) class->dropped = str2ull(words[6]); //if(likely(words[8] && *words[8])) // class->overlimits = str2ull(words[8]); //if(likely(words[10] && *words[10])) // class->requeues = str2ull(words[8]); } else if(unlikely(device && class && class->updated && first_hash == LENDED_HASH && strcmp(words[0], "lended:") == 0)) { worker_is_busy(WORKER_TC_LENDED); // debug(D_TC_LOOP, "LENDED line '%s'", words[1]); //if(likely(words[1] && *words[1])) // class->lended = str2ull(words[1]); //if(likely(words[3] && *words[3])) // class->borrowed = str2ull(words[3]); //if(likely(words[5] && *words[5])) // class->giants = str2ull(words[5]); } else if(unlikely(device && class && class->updated && first_hash == TOKENS_HASH && strcmp(words[0], "tokens:") == 0)) { worker_is_busy(WORKER_TC_TOKENS); // debug(D_TC_LOOP, "TOKENS line '%s'", words[1]); if(likely(words[1] && *words[1])) class->tokens = str2ull(words[1]); if(likely(words[3] && *words[3])) class->ctokens = str2ull(words[3]); } else if(unlikely(device && first_hash == SETDEVICENAME_HASH && strcmp(words[0], "SETDEVICENAME") == 0)) { worker_is_busy(WORKER_TC_SETDEVICENAME); // debug(D_TC_LOOP, "SETDEVICENAME line '%s'", words[1]); if(likely(words[1] && *words[1])) tc_device_set_device_name(device, words[1]); } else if(unlikely(device && first_hash == SETDEVICEGROUP_HASH && strcmp(words[0], "SETDEVICEGROUP") == 0)) { worker_is_busy(WORKER_TC_SETDEVICEGROUP); // debug(D_TC_LOOP, "SETDEVICEGROUP line '%s'", words[1]); if(likely(words[1] && *words[1])) tc_device_set_device_family(device, words[1]); } else if(unlikely(device && first_hash == SETCLASSNAME_HASH && strcmp(words[0], "SETCLASSNAME") == 0)) { worker_is_busy(WORKER_TC_SETCLASSNAME); // debug(D_TC_LOOP, "SETCLASSNAME line '%s' '%s'", words[1], words[2]); char *id = words[1]; char *path = words[2]; if(likely(id && *id && path && *path)) tc_device_set_class_name(device, id, path); } else if(unlikely(first_hash == WORKTIME_HASH && strcmp(words[0], "WORKTIME") == 0)) { worker_is_busy(WORKER_TC_WORKTIME); worker_set_metric(WORKER_TC_PLUGIN_TIME, str2ll(words[1], NULL)); size_t number_of_devices = dictionary_entries(tc_device_root_index); size_t number_of_classes = 0; struct tc_device *d; dfe_start_read(tc_device_root_index, d) { number_of_classes += dictionary_entries(d->classes); } dfe_done(d); worker_set_metric(WORKER_TC_DEVICES, number_of_devices); worker_set_metric(WORKER_TC_CLASSES, number_of_classes); } //else { // debug(D_TC_LOOP, "IGNORED line"); //} worker_is_idle(); } // fgets() failed or loop broke int code = netdata_pclose(fp_child_input, fp_child_output, (pid_t)tc_child_pid); tc_child_pid = 0; if(unlikely(device)) { // tc_device_free(device); device = NULL; class = NULL; } if(unlikely(netdata_exit)) goto cleanup; if(code == 1 || code == 127) { // 1 = DISABLE // 127 = cannot even run it error("TC: tc-qos-helper.sh exited with code %d. Disabling it.", code); goto cleanup; } sleep((unsigned int) localhost->rrd_update_every); } cleanup: ; // added semi-colon to prevent older gcc error: label at end of compound statement worker_unregister(); netdata_thread_cleanup_pop(1); return NULL; }