From b34738ed08c2227300d554b139e2495ca5da97d6 Mon Sep 17 00:00:00 2001 From: Yves-Alexis Perez Date: Thu, 28 Jun 2012 21:16:07 +0200 Subject: Imported Upstream version 4.6.4 --- src/libcharon/plugins/certexpire/Makefile.am | 19 + src/libcharon/plugins/certexpire/Makefile.in | 621 +++++++++++++++++++++ src/libcharon/plugins/certexpire/certexpire_cron.c | 227 ++++++++ src/libcharon/plugins/certexpire/certexpire_cron.h | 67 +++ .../plugins/certexpire/certexpire_export.c | 388 +++++++++++++ .../plugins/certexpire/certexpire_export.h | 52 ++ .../plugins/certexpire/certexpire_listener.c | 148 +++++ .../plugins/certexpire/certexpire_listener.h | 54 ++ .../plugins/certexpire/certexpire_plugin.c | 82 +++ .../plugins/certexpire/certexpire_plugin.h | 42 ++ 10 files changed, 1700 insertions(+) create mode 100644 src/libcharon/plugins/certexpire/Makefile.am create mode 100644 src/libcharon/plugins/certexpire/Makefile.in create mode 100644 src/libcharon/plugins/certexpire/certexpire_cron.c create mode 100644 src/libcharon/plugins/certexpire/certexpire_cron.h create mode 100644 src/libcharon/plugins/certexpire/certexpire_export.c create mode 100644 src/libcharon/plugins/certexpire/certexpire_export.h create mode 100644 src/libcharon/plugins/certexpire/certexpire_listener.c create mode 100644 src/libcharon/plugins/certexpire/certexpire_listener.h create mode 100644 src/libcharon/plugins/certexpire/certexpire_plugin.c create mode 100644 src/libcharon/plugins/certexpire/certexpire_plugin.h (limited to 'src/libcharon/plugins/certexpire') diff --git a/src/libcharon/plugins/certexpire/Makefile.am b/src/libcharon/plugins/certexpire/Makefile.am new file mode 100644 index 000000000..9aa0daad3 --- /dev/null +++ b/src/libcharon/plugins/certexpire/Makefile.am @@ -0,0 +1,19 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \ + -I$(top_srcdir)/src/libcharon + +AM_CFLAGS = -rdynamic \ + -DIPSEC_PIDDIR=\"${piddir}\" + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-certexpire.la +else +plugin_LTLIBRARIES = libstrongswan-certexpire.la +endif + +libstrongswan_certexpire_la_SOURCES = certexpire_plugin.h certexpire_plugin.c \ + certexpire_listener.h certexpire_listener.c \ + certexpire_export.h certexpire_export.c \ + certexpire_cron.h certexpire_cron.c + +libstrongswan_certexpire_la_LDFLAGS = -module -avoid-version diff --git a/src/libcharon/plugins/certexpire/Makefile.in b/src/libcharon/plugins/certexpire/Makefile.in new file mode 100644 index 000000000..929cce20c --- /dev/null +++ b/src/libcharon/plugins/certexpire/Makefile.in @@ -0,0 +1,621 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = src/libcharon/plugins/certexpire +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in +ACLOCAL_M4 = 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uninstall-pluginLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libcharon/plugins/certexpire/certexpire_cron.c b/src/libcharon/plugins/certexpire/certexpire_cron.c new file mode 100644 index 000000000..e8cd4bfd8 --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_cron.c @@ -0,0 +1,227 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 "certexpire_cron.h" + +#include + +#include +#include + +typedef struct private_certexpire_cron_t private_certexpire_cron_t; + +/** + * Private data of an certexpire_cron_t object. + */ +struct private_certexpire_cron_t { + + /** + * Public certexpire_cron_t interface. + */ + certexpire_cron_t public; + + /** + * time when to run export job + */ + struct { + bool m[60]; + bool h[24]; + bool d[32]; + bool my[13]; + bool dw[8]; + } cron; + + /** + * Callback function to execute + */ + certexpire_cron_job_t job; + + /** + * Data to pass to callback + */ + void *data; +}; + +/** + * Check if we should execute the export job + */ +static job_requeue_t check_cron(private_certexpire_cron_t *this) +{ + struct tm tm; + time_t t; + + t = time(NULL); + localtime_r(&t, &tm); + + /* recheck every minute at second 0 */ + lib->scheduler->schedule_job(lib->scheduler, + (job_t*)callback_job_create_with_prio((callback_job_cb_t)check_cron, + this, NULL, NULL, JOB_PRIO_CRITICAL), 60 - tm.tm_sec); + + /* skip this minute if we had a large negative time shift */ + if (tm.tm_sec <= 30) + { + if (this->cron.m[tm.tm_min] && + this->cron.h[tm.tm_hour] && + this->cron.d[tm.tm_mday] && + this->cron.my[tm.tm_mon + 1] && + (this->cron.dw[tm.tm_wday] || + (this->cron.dw[7] && tm.tm_wday == 0))) + { + this->job(this->data); + } + } + return JOB_REQUEUE_NONE; +} + +/** + * Parse a cron range component into boolean fields + */ +static void parse_ranges(bool *fields, char *label, int mi, int ma, char *range) +{ + enumerator_t *enumerator; + int from, to, i; + + if (streq(range, "*")) + { + for (i = mi; i <= ma; i++) + { + fields[i] = TRUE; + } + } + else + { + enumerator = enumerator_create_token(range, ",", ""); + while (enumerator->enumerate(enumerator, &range)) + { + switch (sscanf(range, "%d-%d", &from, &to)) + { + case 1: /* single value */ + if (from >= mi && from <= ma) + { + fields[from] = TRUE; + } + else + { + DBG1(DBG_CFG, "ignoring cron %s %d, out of range", + label, from); + } + break; + case 2: /* range */ + if (from < mi) + { + DBG1(DBG_CFG, "cron %s out of range, shortening start " + "from %d to %d", label, from, mi); + from = mi; + } + if (to > ma) + { + DBG1(DBG_CFG, "cron %s out of range, shortening end " + "from %d to %d", label, to, ma); + to = ma; + } + for (i = from; i <= to; i++) + { + fields[i] = TRUE; + } + break; + default: + break; + } + } + enumerator->destroy(enumerator); + } + DBG3(DBG_CFG, "cron job with enabled %ss:", label); + for (i = mi; i <= ma; i++) + { + if (fields[i]) + { + DBG3(DBG_CFG, " %d", i); + } + } +} + +/** + * Start cron processing, if configured + */ +static void start_cron(private_certexpire_cron_t *this, char *cron) +{ + enumerator_t *enumerator; + int i = 0; + + enumerator = enumerator_create_token(cron, " ", " "); + for (i = 0; i < 5; i++) + { + if (!enumerator->enumerate(enumerator, &cron)) + { + DBG1(DBG_CFG, "cron misses a field, using '*'"); + cron = "*"; + } + switch (i) + { + case 0: + parse_ranges(this->cron.m, "minute", 0, 59, cron); + break; + case 1: + parse_ranges(this->cron.h, "hour", 0, 23, cron); + break; + case 2: + parse_ranges(this->cron.d, "day", 1, 31, cron); + break; + case 3: + parse_ranges(this->cron.my, "month", 1, 12, cron); + break; + case 4: + parse_ranges(this->cron.dw, "weekday", 0, 7, cron); + break; + default: + break; + } + } + if (enumerator->enumerate(enumerator, &cron)) + { + DBG1(DBG_CFG, "ignoring extra fields in cron"); + } + enumerator->destroy(enumerator); + + check_cron(this); +} + +METHOD(certexpire_cron_t, destroy, void, + private_certexpire_cron_t *this) +{ + free(this); +} + +/** + * See header + */ +certexpire_cron_t *certexpire_cron_create(char *cron, certexpire_cron_job_t job, + void *data) +{ + private_certexpire_cron_t *this; + + INIT(this, + .public = { + .destroy = _destroy, + }, + .job = job, + .data = data, + ); + + start_cron(this, cron); + + return &this->public; +} diff --git a/src/libcharon/plugins/certexpire/certexpire_cron.h b/src/libcharon/plugins/certexpire/certexpire_cron.h new file mode 100644 index 000000000..0d6623d7f --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_cron.h @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 certexpire_cron certexpire_cron + * @{ @ingroup certexpire + */ + +#ifndef CERTEXPIRE_CRON_H_ +#define CERTEXPIRE_CRON_H_ + +typedef struct certexpire_cron_t certexpire_cron_t; + +/** + * Callback function invoked by cron. + * + * @param data user specified callback data + */ +typedef void (*certexpire_cron_job_t)(void *data); + +/** + * Cron style job scheduling. + */ +struct certexpire_cron_t { + + /** + * Destroy a certexpire_cron_t. + * + * It currently is not possible to savely cancel a cron job. Make sure + * any scheduled jobs have been canceled before cleaning up. + */ + void (*destroy)(certexpire_cron_t *this); +}; + +/** + * Create a certexpire_cron instance. + * + * The cron string takes numeric arguments only, but supports ranges (1-5) + * and selections (1,3,5), or a combination, space separated: + * minute hour day month weekday + * minute, 0-59 + * hour, 0-23 + * day, 1-31 + * month, 1-12 + * weekday, 0-7 (0 == 7 == sunday) + * man crontab(5) for details. + * + * @param cron cron style scheduling string + * @param job callback function to invoke + * @param data user data to pass to job + */ +certexpire_cron_t *certexpire_cron_create(char *cron, certexpire_cron_job_t job, + void *data); + +#endif /** CERTEXPIRE_CRON_H_ @}*/ diff --git a/src/libcharon/plugins/certexpire/certexpire_export.c b/src/libcharon/plugins/certexpire/certexpire_export.c new file mode 100644 index 000000000..c73b0beda --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_export.c @@ -0,0 +1,388 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 "certexpire_export.h" + +#include "certexpire_cron.h" + +#include +#include +#include + +#include +#include +#include +#include + +typedef struct private_certexpire_export_t private_certexpire_export_t; + +/** + * Private data of an certexpire_export_t object. + */ +struct private_certexpire_export_t { + + /** + * Public certexpire_export_t interface. + */ + certexpire_export_t public; + + /** + * hashtable caching local trustchains, mapping entry_t => entry_t + */ + hashtable_t *local; + + /** + * hashtable caching remote trustchains, mapping entry_t => entry_t + */ + hashtable_t *remote; + + /** + * Mutex to lock hashtables + */ + mutex_t *mutex; + + /** + * Cronjob for export + */ + certexpire_cron_t *cron; + + /** + * strftime() format to generate local CSV file + */ + char *local_path; + + /** + * strftime() format to generate remote CSV file + */ + char *remote_path; + + /** + * stftime() format of the exported expiration date + */ + char *format; + + /** + * CSV field separator + */ + char *separator; + + /** + * TRUE to use fixed field count, CA at end + */ + bool fixed_fields; + + /** + * String to use in empty fields, if using fixed_fields + */ + char *empty_string; +}; + +/** + * Maximum number of expiration dates we store (for subject + IM CAs + CA) + */ +#define MAX_TRUSTCHAIN_LENGTH 7 + +/** + * Hashtable entry + */ +typedef struct { + /** certificate subject as subjectAltName or CN of a DN */ + char id[128]; + /** list of expiration dates, 0 if no certificate */ + time_t expire[MAX_TRUSTCHAIN_LENGTH]; +} entry_t; + +/** + * Hashtable hash function + */ +static u_int hash(entry_t *key) +{ + return chunk_hash(chunk_create(key->id, strlen(key->id))); +} + +/** + * Hashtable equals function + */ +static bool equals(entry_t *a, entry_t *b) +{ + return streq(a->id, b->id); +} + +/** + * Export a single trustchain to a path + */ +static void export_csv(private_certexpire_export_t *this, char *path, + hashtable_t *chains) +{ + enumerator_t *enumerator; + char buf[PATH_MAX]; + entry_t *entry; + FILE *file; + struct tm tm; + time_t t; + int i; + + t = time(NULL); + localtime_r(&t, &tm); + + strftime(buf, sizeof(buf), path, &tm); + file = fopen(buf, "a"); + if (file) + { + DBG1(DBG_CFG, "exporting expiration dates of %d trustchain%s to '%s'", + chains->get_count(chains), + chains->get_count(chains) == 1 ? "" : "s", buf); + this->mutex->lock(this->mutex); + enumerator = chains->create_enumerator(chains); + while (enumerator->enumerate(enumerator, NULL, &entry)) + { + fprintf(file, "%s%s", entry->id, this->separator); + for (i = 0; i < MAX_TRUSTCHAIN_LENGTH; i++) + { + if (entry->expire[i]) + { + localtime_r(&entry->expire[i], &tm); + strftime(buf, sizeof(buf), this->format, &tm); + fprintf(file, "%s", buf); + } + if (i == MAX_TRUSTCHAIN_LENGTH - 1) + { + fprintf(file, "\n"); + } + else if (entry->expire[i]) + { + fprintf(file, "%s", this->separator); + } + else if (this->fixed_fields) + { + fprintf(file, "%s%s", this->empty_string, this->separator); + } + } + chains->remove_at(chains, enumerator); + free(entry); + } + enumerator->destroy(enumerator); + this->mutex->unlock(this->mutex); + fclose(file); + } + else + { + DBG1(DBG_CFG, "opening CSV file '%s' failed: %s", buf, strerror(errno)); + } +} + +/** + * Export cached trustchain expiration dates to CSV files + */ +static void cron_export(private_certexpire_export_t *this) +{ + if (this->local_path) + { + export_csv(this, this->local_path, this->local); + } + if (this->remote_path) + { + export_csv(this, this->remote_path, this->remote); + } +} + +METHOD(certexpire_export_t, add, void, + private_certexpire_export_t *this, linked_list_t *trustchain, bool local) +{ + enumerator_t *enumerator; + certificate_t *cert; + int count; + + /* don't store expiration dates if no path configured */ + if (local) + { + if (!this->local_path) + { + return; + } + } + else + { + if (!this->remote_path) + { + return; + } + } + + count = min(trustchain->get_count(trustchain), MAX_TRUSTCHAIN_LENGTH) - 1; + + enumerator = trustchain->create_enumerator(trustchain); + /* get subject cert */ + if (enumerator->enumerate(enumerator, &cert)) + { + identification_t *id; + entry_t *entry; + int i; + + INIT(entry); + + /* prefer FQDN subjectAltName... */ + if (cert->get_type(cert) == CERT_X509) + { + x509_t *x509 = (x509_t*)cert; + enumerator_t *sans; + + sans = x509->create_subjectAltName_enumerator(x509); + while (sans->enumerate(sans, &id)) + { + if (id->get_type(id) == ID_FQDN) + { + snprintf(entry->id, sizeof(entry->id), "%Y", id); + break; + } + } + sans->destroy(sans); + } + /* fallback to CN of DN */ + if (!entry->id[0]) + { + enumerator_t *parts; + id_part_t part; + chunk_t data; + + id = cert->get_subject(cert); + parts = id->create_part_enumerator(id); + while (parts->enumerate(parts, &part, &data)) + { + if (part == ID_PART_RDN_CN) + { + snprintf(entry->id, sizeof(entry->id), "%.*s", + (int)data.len, data.ptr); + break; + } + } + parts->destroy(parts); + } + /* no usable identity? skip */ + if (!entry->id[0]) + { + enumerator->destroy(enumerator); + free(entry); + return; + } + + /* get intermediate CA expiration dates */ + cert->get_validity(cert, NULL, NULL, &entry->expire[0]); + for (i = 1; i < count && enumerator->enumerate(enumerator, &cert); i++) + { + cert->get_validity(cert, NULL, NULL, &entry->expire[i]); + } + /* get CA expiration date, as last array entry */ + if (enumerator->enumerate(enumerator, &cert)) + { + cert->get_validity(cert, NULL, NULL, + &entry->expire[MAX_TRUSTCHAIN_LENGTH - 1]); + } + this->mutex->lock(this->mutex); + if (local) + { + entry = this->local->put(this->local, entry, entry); + } + else + { + entry = this->remote->put(this->remote, entry, entry); + } + this->mutex->unlock(this->mutex); + if (entry) + { + free(entry); + } + if (!this->cron) + { /* export directly if no cron job defined */ + if (local) + { + export_csv(this, this->local_path, this->local); + } + else + { + export_csv(this, this->remote_path, this->remote); + } + } + } + enumerator->destroy(enumerator); +} + +METHOD(certexpire_export_t, destroy, void, + private_certexpire_export_t *this) +{ + entry_t *key, *value; + enumerator_t *enumerator; + + enumerator = this->local->create_enumerator(this->local); + while (enumerator->enumerate(enumerator, &key, &value)) + { + free(value); + } + enumerator->destroy(enumerator); + enumerator = this->remote->create_enumerator(this->remote); + while (enumerator->enumerate(enumerator, &key, &value)) + { + free(value); + } + enumerator->destroy(enumerator); + + this->local->destroy(this->local); + this->remote->destroy(this->remote); + DESTROY_IF(this->cron); + this->mutex->destroy(this->mutex); + free(this); +} + +/** + * See header + */ +certexpire_export_t *certexpire_export_create() +{ + private_certexpire_export_t *this; + char *cron; + + INIT(this, + .public = { + .add = _add, + .destroy = _destroy, + }, + .local = hashtable_create((hashtable_hash_t)hash, + (hashtable_equals_t)equals, 4), + .remote = hashtable_create((hashtable_hash_t)hash, + (hashtable_equals_t)equals, 32), + .mutex = mutex_create(MUTEX_TYPE_DEFAULT), + .local_path = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.local", NULL), + .remote_path = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.remote", NULL), + .separator = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.separator", ","), + .format = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.format", "%d:%m:%Y"), + .fixed_fields = lib->settings->get_bool(lib->settings, + "charon.plugins.certexpire.csv.fixed_fields", TRUE), + .empty_string = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.empty_string", ""), + ); + + cron = lib->settings->get_str(lib->settings, + "charon.plugins.certexpire.csv.cron", NULL); + if (cron) + { + this->cron = certexpire_cron_create(cron, + (certexpire_cron_job_t)cron_export, this); + } + return &this->public; +} diff --git a/src/libcharon/plugins/certexpire/certexpire_export.h b/src/libcharon/plugins/certexpire/certexpire_export.h new file mode 100644 index 000000000..64281d0bd --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_export.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 certexpire_export certexpire_export + * @{ @ingroup certexpire + */ + +#ifndef CERTEXPIRE_EXPORT_H_ +#define CERTEXPIRE_EXPORT_H_ + +typedef struct certexpire_export_t certexpire_export_t; + +#include + +/** + * Caches and exports trustchain information to CSV files. + */ +struct certexpire_export_t { + + /** + * Add trustchain to cache for export. + * + * @param trustchain trustchain, sorted list of certificate_t + * @param local TRUE for own chain, FALSE for remote chain + */ + void (*add)(certexpire_export_t *this, linked_list_t *trustchain, bool local); + + /** + * Destroy a certexpire_export_t. + */ + void (*destroy)(certexpire_export_t *this); +}; + +/** + * Create a certexpire_export instance. + */ +certexpire_export_t *certexpire_export_create(); + +#endif /** CERTEXPIRE_EXPORT_H_ @}*/ diff --git a/src/libcharon/plugins/certexpire/certexpire_listener.c b/src/libcharon/plugins/certexpire/certexpire_listener.c new file mode 100644 index 000000000..4c9c6ff3b --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_listener.c @@ -0,0 +1,148 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 "certexpire_listener.h" + +#include + +typedef struct private_certexpire_listener_t private_certexpire_listener_t; + +/** + * Private data of an certexpire_listener_t object. + */ +struct private_certexpire_listener_t { + + /** + * Public certexpire_listener_t interface. + */ + certexpire_listener_t public; + + /** + * Export facility + */ + certexpire_export_t *export; +}; + +METHOD(listener_t, authorize, bool, + private_certexpire_listener_t *this, ike_sa_t *ike_sa, + bool final, bool *success) +{ + enumerator_t *rounds, *enumerator; + certificate_t *cert, *ca = NULL; + linked_list_t *trustchain; + auth_cfg_t *auth; + auth_rule_t rule; + + /* Check all rounds in final hook, as local authentication data are + * not completely available after round-invocation. */ + if (!final) + { + return TRUE; + } + + /* collect local certificates */ + trustchain = linked_list_create(); + rounds = ike_sa->create_auth_cfg_enumerator(ike_sa, TRUE); + while (rounds->enumerate(rounds, &auth)) + { + cert = auth->get(auth, AUTH_RULE_SUBJECT_CERT); + if (cert) + { + trustchain->insert_last(trustchain, cert); + + enumerator = auth->create_enumerator(auth); + while (enumerator->enumerate(enumerator, &rule, &cert)) + { + if (rule == AUTH_RULE_IM_CERT) + { + trustchain->insert_last(trustchain, cert); + } + if (rule == AUTH_RULE_CA_CERT) + { + /* the last CA cert is the one used in the trustchain. + * Previous CA certificates have been received as cert + * requests. */ + ca = cert; + } + } + enumerator->destroy(enumerator); + if (ca) + { + trustchain->insert_last(trustchain, ca); + } + } + } + rounds->destroy(rounds); + this->export->add(this->export, trustchain, TRUE); + trustchain->destroy(trustchain); + + /* collect remote certificates */ + trustchain = linked_list_create(); + rounds = ike_sa->create_auth_cfg_enumerator(ike_sa, FALSE); + while (rounds->enumerate(rounds, &auth)) + { + cert = auth->get(auth, AUTH_RULE_SUBJECT_CERT); + if (cert) + { + trustchain->insert_last(trustchain, cert); + + enumerator = auth->create_enumerator(auth); + while (enumerator->enumerate(enumerator, &rule, &cert)) + { + if (rule == AUTH_RULE_IM_CERT) + { + trustchain->insert_last(trustchain, cert); + } + } + enumerator->destroy(enumerator); + + cert = auth->get(auth, AUTH_RULE_CA_CERT); + if (cert) + { + trustchain->insert_last(trustchain, cert); + } + } + } + rounds->destroy(rounds); + this->export->add(this->export, trustchain, FALSE); + trustchain->destroy(trustchain); + return TRUE; +} + +METHOD(certexpire_listener_t, destroy, void, + private_certexpire_listener_t *this) +{ + free(this); +} + +/** + * See header + */ +certexpire_listener_t *certexpire_listener_create(certexpire_export_t *export) +{ + private_certexpire_listener_t *this; + + INIT(this, + .public = { + .listener = { + .authorize = _authorize, + }, + .destroy = _destroy, + }, + .export = export, + ); + + return &this->public; +} diff --git a/src/libcharon/plugins/certexpire/certexpire_listener.h b/src/libcharon/plugins/certexpire/certexpire_listener.h new file mode 100644 index 000000000..8601ff585 --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_listener.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 certexpire_listener certexpire_listener + * @{ @ingroup certexpire + */ + +#ifndef CERTEXPIRE_LISTENER_H_ +#define CERTEXPIRE_LISTENER_H_ + +#include + +#include "certexpire_export.h" + +typedef struct certexpire_listener_t certexpire_listener_t; + +/** + * Listener collecting certificate expire information after authentication. + */ +struct certexpire_listener_t { + + /** + * Implements listener_t interface. + */ + listener_t listener; + + /** + * Destroy a certexpire_listener_t. + */ + void (*destroy)(certexpire_listener_t *this); +}; + +/** + * Create a certexpire_listener instance. + * + * @param export facility exporting collected trustchains + * @return listener instance + */ +certexpire_listener_t *certexpire_listener_create(certexpire_export_t *export); + +#endif /** CERTEXPIRE_LISTENER_H_ @}*/ diff --git a/src/libcharon/plugins/certexpire/certexpire_plugin.c b/src/libcharon/plugins/certexpire/certexpire_plugin.c new file mode 100644 index 000000000..2b4c0b68b --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_plugin.c @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 "certexpire_plugin.h" + +#include "certexpire_listener.h" +#include "certexpire_export.h" + +#include + +typedef struct private_certexpire_plugin_t private_certexpire_plugin_t; + +/** + * Private data of certexpire plugin + */ +struct private_certexpire_plugin_t { + + /** + * Implements plugin interface + */ + certexpire_plugin_t public; + + /** + * Listener collecting expire information + */ + certexpire_listener_t *listener; + + /** + * Cache and export trustchain expire information + */ + certexpire_export_t *export; +}; + +METHOD(plugin_t, get_name, char*, + private_certexpire_plugin_t *this) +{ + return "certexpire"; +} + +METHOD(plugin_t, destroy, void, + private_certexpire_plugin_t *this) +{ + charon->bus->remove_listener(charon->bus, &this->listener->listener); + this->listener->destroy(this->listener); + this->export->destroy(this->export); + free(this); +} + +/** + * Plugin constructor + */ +plugin_t *certexpire_plugin_create() +{ + private_certexpire_plugin_t *this; + + INIT(this, + .public = { + .plugin = { + .get_name = _get_name, + .reload = (void*)return_false, + .destroy = _destroy, + }, + }, + .export = certexpire_export_create(), + ); + this->listener = certexpire_listener_create(this->export), + charon->bus->add_listener(charon->bus, &this->listener->listener); + + return &this->public.plugin; +} diff --git a/src/libcharon/plugins/certexpire/certexpire_plugin.h b/src/libcharon/plugins/certexpire/certexpire_plugin.h new file mode 100644 index 000000000..bcb5606f5 --- /dev/null +++ b/src/libcharon/plugins/certexpire/certexpire_plugin.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011 Martin Willi + * Copyright (C) 2011 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 . + * + * 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 certexpire certexpire + * @ingroup cplugins + * + * @defgroup certexpire_plugin certexpire_plugin + * @{ @ingroup certexpire + */ + +#ifndef CERTEXPIRE_PLUGIN_H_ +#define CERTEXPIRE_PLUGIN_H_ + +#include + +typedef struct certexpire_plugin_t certexpire_plugin_t; + +/** + * Plugin exporting expiration dates of used certificates to CSV files. + */ +struct certexpire_plugin_t { + + /** + * Implements plugin interface. + */ + plugin_t plugin; +}; + +#endif /** CERTEXPIRE_PLUGIN_H_ @}*/ -- cgit v1.2.3