diff options
Diffstat (limited to 'src/libcharon/plugins/counters')
| -rw-r--r-- | src/libcharon/plugins/counters/Makefile.am | 19 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/Makefile.in | 804 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/counters_listener.c | 464 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/counters_listener.h | 49 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/counters_plugin.c | 101 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/counters_plugin.h | 45 | ||||
| -rw-r--r-- | src/libcharon/plugins/counters/counters_query.h | 124 |
7 files changed, 1606 insertions, 0 deletions
diff --git a/src/libcharon/plugins/counters/Makefile.am b/src/libcharon/plugins/counters/Makefile.am new file mode 100644 index 000000000..e5bde3f7a --- /dev/null +++ b/src/libcharon/plugins/counters/Makefile.am @@ -0,0 +1,19 @@ +AM_CPPFLAGS = \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libcharon + +AM_CFLAGS = \ + $(PLUGIN_CFLAGS) + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-counters.la +else +plugin_LTLIBRARIES = libstrongswan-counters.la +endif + +libstrongswan_counters_la_SOURCES = \ + counters_plugin.h counters_plugin.c \ + counters_listener.h counters_listener.c \ + counters_query.h + +libstrongswan_counters_la_LDFLAGS = -module -avoid-version diff --git a/src/libcharon/plugins/counters/Makefile.in b/src/libcharon/plugins/counters/Makefile.in new file mode 100644 index 000000000..491ba80b3 --- /dev/null +++ b/src/libcharon/plugins/counters/Makefile.in @@ -0,0 +1,804 @@ +# Makefile.in generated by automake 1.15 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2014 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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Copyright (C) 2012 Martin Willi + * Copyright (C) 2012 revosec AG + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "counters_listener.h" +#include "counters_query.h" + +#include <threading/spinlock.h> +#include <collections/hashtable.h> +#include <collections/array.h> + +typedef struct private_counters_listener_t private_counters_listener_t; +typedef struct private_counters_query_t private_counters_query_t; + +/** + * Query interface + */ +struct private_counters_query_t { + + /** + * Public interface + */ + counters_query_t public; + + /** + * Reference to this + */ + private_counters_listener_t *this; +}; + +/** + * Private data + */ +struct private_counters_listener_t { + + /** + * Public interface + */ + counters_listener_t public; + + /** + * Query interface + */ + private_counters_query_t query; + + /** + * Global counter values + */ + uint64_t counters[COUNTER_MAX]; + + /** + * Counters for specific connection names, char* => entry_t + */ + hashtable_t *conns; + + /** + * Lock for counter values + */ + spinlock_t *lock; +}; + +/** + * Counters for a specific connection name + */ +typedef struct { + /** connection name */ + char *name; + /** counter values for connection */ + uint64_t counters[COUNTER_MAX]; +} entry_t; + +/** + * Destroy named entry + */ +static void destroy_entry(entry_t *this) +{ + free(this->name); + free(this); +} + +/** + * Hashtable hash function + */ +static u_int hash(char *name) +{ + return chunk_hash(chunk_from_str(name)); +} + +/** + * Hashtable equals function + */ +static bool equals(char *a, char *b) +{ + return streq(a, b); +} + +/** + * Get the name of an IKE_SA, but return NULL if it is not known yet + */ +static char *get_ike_sa_name(ike_sa_t *ike_sa) +{ + peer_cfg_t *peer_cfg; + + if (ike_sa) + { + peer_cfg = ike_sa->get_peer_cfg(ike_sa); + if (peer_cfg) + { + return peer_cfg->get_name(peer_cfg); + } + } + return NULL; +} + +/** + * Increase a counter for a named entry + */ +static void count_named(private_counters_listener_t *this, + ike_sa_t *ike_sa, counter_type_t type) +{ + entry_t *entry; + char *name; + + name = get_ike_sa_name(ike_sa); + if (name) + { + entry = this->conns->get(this->conns, name); + if (!entry) + { + INIT(entry, + .name = strdup(name), + ); + this->conns->put(this->conns, entry->name, entry); + } + entry->counters[type]++; + } +} + +METHOD(listener_t, alert, bool, + private_counters_listener_t *this, ike_sa_t *ike_sa, + alert_t alert, va_list args) +{ + counter_type_t type; + + switch (alert) + { + case ALERT_INVALID_IKE_SPI: + type = COUNTER_IN_INVALID_IKE_SPI; + break; + case ALERT_PARSE_ERROR_HEADER: + case ALERT_PARSE_ERROR_BODY: + type = COUNTER_IN_INVALID; + break; + default: + return TRUE; + } + + this->lock->lock(this->lock); + this->counters[type]++; + count_named(this, ike_sa, type); + this->lock->unlock(this->lock); + + return TRUE; +} + +METHOD(listener_t, ike_rekey, bool, + private_counters_listener_t *this, ike_sa_t *old, ike_sa_t *new) +{ + counter_type_t type; + ike_sa_id_t *id; + + id = new->get_id(new); + if (id->is_initiator(id)) + { + type = COUNTER_INIT_IKE_SA_REKEY; + } + else + { + type = COUNTER_RESP_IKE_SA_REKEY; + } + + this->lock->lock(this->lock); + this->counters[type]++; + count_named(this, old, type); + this->lock->unlock(this->lock); + + return TRUE; +} + +METHOD(listener_t, child_rekey, bool, + private_counters_listener_t *this, ike_sa_t *ike_sa, + child_sa_t *old, child_sa_t *new) +{ + this->lock->lock(this->lock); + this->counters[COUNTER_CHILD_SA_REKEY]++; + count_named(this, ike_sa, COUNTER_CHILD_SA_REKEY); + this->lock->unlock(this->lock); + + return TRUE; +} + +METHOD(listener_t, message_hook, bool, + private_counters_listener_t *this, ike_sa_t *ike_sa, message_t *message, + bool incoming, bool plain) +{ + counter_type_t type; + bool request; + + if ((incoming && !plain) || (!incoming && !plain)) + { /* handle each message only once */ + return TRUE; + } + + request = message->get_request(message); + switch (message->get_exchange_type(message)) + { + case IKE_SA_INIT: + if (incoming) + { + type = request ? COUNTER_IN_IKE_SA_INIT_REQ + : COUNTER_IN_IKE_SA_INIT_RSP; + } + else + { + type = request ? COUNTER_OUT_IKE_SA_INIT_REQ + : COUNTER_OUT_IKE_SA_INIT_RES; + } + break; + case IKE_AUTH: + if (incoming) + { + type = request ? COUNTER_IN_IKE_AUTH_REQ + : COUNTER_IN_IKE_AUTH_RSP; + } + else + { + type = request ? COUNTER_OUT_IKE_AUTH_REQ + : COUNTER_OUT_IKE_AUTH_RSP; + } + break; + case CREATE_CHILD_SA: + if (incoming) + { + type = request ? COUNTER_IN_CREATE_CHILD_SA_REQ + : COUNTER_IN_CREATE_CHILD_SA_RSP; + } + else + { + type = request ? COUNTER_OUT_CREATE_CHILD_SA_REQ + : COUNTER_OUT_CREATE_CHILD_SA_RSP; + } + break; + case INFORMATIONAL: + if (incoming) + { + type = request ? COUNTER_IN_INFORMATIONAL_REQ + : COUNTER_IN_INFORMATIONAL_RSP; + } + else + { + type = request ? COUNTER_OUT_INFORMATIONAL_REQ + : COUNTER_OUT_INFORMATIONAL_RSP; + } + break; + default: + return TRUE; + } + + this->lock->lock(this->lock); + this->counters[type]++; + count_named(this, ike_sa, type); + this->lock->unlock(this->lock); + + return TRUE; +} + +CALLBACK(free_names, void, + array_t * names) +{ + array_destroy_function(names, (void*)free, NULL); +} + +METHOD(counters_query_t, get_names, enumerator_t*, + private_counters_query_t *query) +{ + private_counters_listener_t *this = query->this; + enumerator_t *enumerator; + array_t *names; + char *name; + + this->lock->lock(this->lock); + names = array_create(0, this->conns->get_count(this->conns)); + enumerator = this->conns->create_enumerator(this->conns); + while (enumerator->enumerate(enumerator, &name, NULL)) + { + array_insert(names, ARRAY_TAIL, strdup(name)); + } + enumerator->destroy(enumerator); + this->lock->unlock(this->lock); + + array_sort(names, (void*)strcmp, NULL); + + return enumerator_create_cleaner(array_create_enumerator(names), + free_names, names); +} + +METHOD(counters_query_t, get, bool, + private_counters_query_t *query, counter_type_t type, char *name, + uint64_t *value) +{ + private_counters_listener_t *this = query->this; + uint64_t *counters = this->counters; + + this->lock->lock(this->lock); + if (name) + { + entry_t *entry; + + entry = this->conns->get(this->conns, name); + if (!entry) + { + this->lock->unlock(this->lock); + return FALSE; + } + counters = entry->counters; + } + if (value) + { + *value = counters[type]; + } + this->lock->unlock(this->lock); + return TRUE; +} + +METHOD(counters_query_t, get_all, uint64_t*, + private_counters_query_t *query, char *name) +{ + private_counters_listener_t *this = query->this; + entry_t *entry; + uint64_t *result, *counters = this->counters; + counter_type_t i; + + result = calloc(COUNTER_MAX, sizeof(uint64_t)); + + this->lock->lock(this->lock); + if (name) + { + entry = this->conns->get(this->conns, name); + if (!entry) + { + this->lock->unlock(this->lock); + free(result); + return NULL; + } + counters = &entry->counters[0]; + } + for (i = 0; i < countof(this->counters); i++) + { + result[i] = counters[i]; + } + this->lock->unlock(this->lock); + return result; +} + +METHOD(counters_query_t, reset, void, + private_counters_query_t *query, char *name) +{ + private_counters_listener_t *this = query->this; + entry_t *entry = NULL; + + this->lock->lock(this->lock); + if (name) + { + entry = this->conns->remove(this->conns, name); + } + else + { + memset(&this->counters, 0, sizeof(this->counters)); + } + this->lock->unlock(this->lock); + + if (entry) + { + destroy_entry(entry); + } +} + +METHOD(counters_query_t, reset_all, void, + private_counters_query_t *query) +{ + private_counters_listener_t *this = query->this; + hashtable_t *new_conns, *conns; + + new_conns = hashtable_create((hashtable_hash_t)hash, + (hashtable_equals_t)equals, 4); + + this->lock->lock(this->lock); + conns = this->conns; + this->conns = new_conns; + this->lock->unlock(this->lock); + + conns->destroy_function(conns, (void*)destroy_entry); +} + +METHOD(counters_listener_t, destroy, void, + private_counters_listener_t *this) +{ + lib->set(lib, "counters", NULL); + + this->conns->destroy_function(this->conns, (void*)destroy_entry); + this->lock->destroy(this->lock); + free(this); +} + +/* + * Described in header + */ +counters_listener_t *counters_listener_create() +{ + private_counters_listener_t *this; + + INIT(this, + .public = { + .listener = { + .alert = _alert, + .ike_rekey = _ike_rekey, + .child_rekey = _child_rekey, + .message = _message_hook, + }, + .destroy = _destroy, + }, + .query = { + .public = { + .get_names = _get_names, + .get = _get, + .get_all = _get_all, + .reset = _reset, + .reset_all = _reset_all, + }, + }, + .conns = hashtable_create((hashtable_hash_t)hash, + (hashtable_equals_t)equals, 4), + .lock = spinlock_create(), + ); + this->query.this = this; + + lib->set(lib, "counters", &this->query); + + return &this->public; +} diff --git a/src/libcharon/plugins/counters/counters_listener.h b/src/libcharon/plugins/counters/counters_listener.h new file mode 100644 index 000000000..6d9168f4c --- /dev/null +++ b/src/libcharon/plugins/counters/counters_listener.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2017 Tobias Brunner + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup counters_listener counters_listener + * @{ @ingroup counters + */ + +#ifndef COUNTERS_LISTENER_H_ +#define COUNTERS_LISTENER_H_ + +#include <bus/listeners/listener.h> + +typedef struct counters_listener_t counters_listener_t; + +/** + * Collect counter values for different IKE events. + */ +struct counters_listener_t { + + /** + * Implements listener_t interface. + */ + listener_t listener; + + /** + * Destroy a counters_listener_t. + */ + void (*destroy)(counters_listener_t *this); +}; + +/** + * Create a counters_listener_t instance. + */ +counters_listener_t *counters_listener_create(); + +#endif /** COUNTERS_LISTENER_H_ @}*/ diff --git a/src/libcharon/plugins/counters/counters_plugin.c b/src/libcharon/plugins/counters/counters_plugin.c new file mode 100644 index 000000000..48de92760 --- /dev/null +++ b/src/libcharon/plugins/counters/counters_plugin.c @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2017 Tobias Brunner + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "counters_plugin.h" + +#include <daemon.h> +#include <plugins/plugin_feature.h> + +#include "counters_listener.h" + +typedef struct private_counters_plugin_t private_counters_plugin_t; + +/** + * Private data + */ +struct private_counters_plugin_t { + + /** + * Public interface + */ + counters_plugin_t public; + + /** + * Listener implementation + */ + counters_listener_t *listener; +}; + +METHOD(plugin_t, get_name, char*, + private_counters_plugin_t *this) +{ + return "counters"; +} + +/** + * Register listener + */ +static bool plugin_cb(private_counters_plugin_t *this, + plugin_feature_t *feature, bool reg, void *cb_data) +{ + if (reg) + { + charon->bus->add_listener(charon->bus, &this->listener->listener); + } + else + { + charon->bus->remove_listener(charon->bus, &this->listener->listener); + } + return TRUE; +} + +METHOD(plugin_t, get_features, int, + private_counters_plugin_t *this, plugin_feature_t *features[]) +{ + static plugin_feature_t f[] = { + PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL), + PLUGIN_PROVIDE(CUSTOM, "counters"), + }; + *features = f; + return countof(f); +} + +METHOD(plugin_t, destroy, void, + private_counters_plugin_t *this) +{ + this->listener->destroy(this->listener); + free(this); +} + +/* + * Described in header + */ +plugin_t *counters_plugin_create() +{ + private_counters_plugin_t *this; + + INIT(this, + .public = { + .plugin = { + .get_name = _get_name, + .get_features = _get_features, + .destroy = _destroy, + }, + }, + .listener = counters_listener_create(), + ); + + return &this->public.plugin; +} diff --git a/src/libcharon/plugins/counters/counters_plugin.h b/src/libcharon/plugins/counters/counters_plugin.h new file mode 100644 index 000000000..76fe2c236 --- /dev/null +++ b/src/libcharon/plugins/counters/counters_plugin.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2017 Tobias Brunner + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup counters counters + * @ingroup cplugins + * + * @defgroup counters_plugin counters_plugin + * @{ @ingroup counters + */ + +#ifndef COUNTERS_PLUGIN_H_ +#define COUNTERS_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct counters_plugin_t counters_plugin_t; + +/** + * Plugin collecting several IKE event counters. + * + * Interested components can query individual counters via the 'counters' + * object registered on lib that implements the counters_query.h interface. + */ +struct counters_plugin_t { + + /** + * Implements plugin_t. interface. + */ + plugin_t plugin; +}; + +#endif /** COUNTERS_PLUGIN_H_ @}*/ diff --git a/src/libcharon/plugins/counters/counters_query.h b/src/libcharon/plugins/counters/counters_query.h new file mode 100644 index 000000000..f785a68c8 --- /dev/null +++ b/src/libcharon/plugins/counters/counters_query.h @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2017 Tobias Brunner + * HSR Hochschule fuer Technik Rapperswil + * + * Copyright (C) 2012 Martin Willi + * Copyright (C) 2012 revosec AG + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup counters_query counters_query + * @{ @ingroup counters + */ + +#ifndef COUNTERS_QUERY_H_ +#define COUNTERS_QUERY_H_ + +#include <bus/listeners/listener.h> + +typedef struct counters_query_t counters_query_t; +typedef enum counter_type_t counter_type_t; + +enum counter_type_t { + /** initiated IKE_SA rekeyings */ + COUNTER_INIT_IKE_SA_REKEY, + /** responded IKE_SA rekeyings */ + COUNTER_RESP_IKE_SA_REKEY, + /** completed CHILD_SA rekeyings */ + COUNTER_CHILD_SA_REKEY, + /** messages with invalid types, length, or a value out of range */ + COUNTER_IN_INVALID, + /** messages with an invalid IKE SPI */ + COUNTER_IN_INVALID_IKE_SPI, + /** received IKE_SA_INIT requests */ + COUNTER_IN_IKE_SA_INIT_REQ, + /** received IKE_SA_INIT responses */ + COUNTER_IN_IKE_SA_INIT_RSP, + /** sent IKE_SA_INIT requests */ + COUNTER_OUT_IKE_SA_INIT_REQ, + /** sent IKE_SA_INIT responses */ + COUNTER_OUT_IKE_SA_INIT_RES, + /** received IKE_AUTH requests */ + COUNTER_IN_IKE_AUTH_REQ, + /** received IKE_AUTH responses */ + COUNTER_IN_IKE_AUTH_RSP, + /** sent IKE_AUTH requests */ + COUNTER_OUT_IKE_AUTH_REQ, + /** sent IKE_AUTH responses */ + COUNTER_OUT_IKE_AUTH_RSP, + /** received CREATE_CHILD_SA requests */ + COUNTER_IN_CREATE_CHILD_SA_REQ, + /** received CREATE_CHILD_SA responses */ + COUNTER_IN_CREATE_CHILD_SA_RSP, + /** sent CREATE_CHILD_SA requests */ + COUNTER_OUT_CREATE_CHILD_SA_REQ, + /** sent CREATE_CHILD_SA responses */ + COUNTER_OUT_CREATE_CHILD_SA_RSP, + /** received INFORMATIONAL requests */ + COUNTER_IN_INFORMATIONAL_REQ, + /** received INFORMATIONAL responses */ + COUNTER_IN_INFORMATIONAL_RSP, + /** sent INFORMATIONAL requests */ + COUNTER_OUT_INFORMATIONAL_REQ, + /** sent INFORMATIONAL responses */ + COUNTER_OUT_INFORMATIONAL_RSP, + /** number of counter types */ + COUNTER_MAX +}; + +/** + * Query counter values for different IKE events. + */ +struct counters_query_t { + + /** + * Enumerate all connection names for which counters are currently recorded. + * + * @return enumerator over names (char *) + */ + enumerator_t *(*get_names)(counters_query_t *this); + + /** + * Get a current global or connection-specific counter value. + * + * @param type counter to query + * @param name connection name to get counter for, NULL for global + * @param[out] value counter value + * @return TRUE if value found and returned + */ + bool (*get)(counters_query_t *this, counter_type_t type, char *name, + uint64_t *value); + + /** + * Get all global or connection-specific counter values. + * + * @param name connection name to get counters for, NULL for global + * @return array of counters (has to be freed), NULL if named + * connection is not found + */ + uint64_t *(*get_all)(counters_query_t *this, char *name); + + /** + * Reset all global or connection-specific counters. + * + * @param name connection name to reset counters, NULL for global + */ + void (*reset)(counters_query_t *this, char *name); + + /** + * Reset counters for all connections, global counters are unaffected. + */ + void (*reset_all)(counters_query_t *this); +}; + +#endif /** COUNTERS_QUERY_H_ @}*/ |