diff options
Diffstat (limited to 'src/libcharon/config/auth_cfg.c')
| -rw-r--r-- | src/libcharon/config/auth_cfg.c | 768 |
1 files changed, 0 insertions, 768 deletions
diff --git a/src/libcharon/config/auth_cfg.c b/src/libcharon/config/auth_cfg.c deleted file mode 100644 index 94362c756..000000000 --- a/src/libcharon/config/auth_cfg.c +++ /dev/null @@ -1,768 +0,0 @@ -/* - * Copyright (C) 2007-2009 Martin Willi - * Copyright (C) 2008 Tobias Brunner - * 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 "auth_cfg.h" - -#include <daemon.h> -#include <utils/linked_list.h> -#include <utils/identification.h> -#include <credentials/certificates/certificate.h> - -ENUM(auth_rule_names, AUTH_RULE_IDENTITY, AUTH_HELPER_SUBJECT_HASH_URL, - "RULE_IDENTITY", - "RULE_AUTH_CLASS", - "RULE_EAP_IDENTITY", - "RULE_EAP_TYPE", - "RULE_EAP_VENDOR", - "RULE_CA_CERT", - "RULE_IM_CERT", - "RULE_SUBJECT_CERT", - "RULE_CRL_VALIDATION", - "RULE_OCSP_VALIDATION", - "RULE_AC_GROUP", - "HELPER_IM_CERT", - "HELPER_SUBJECT_CERT", - "HELPER_IM_HASH_URL", - "HELPER_SUBJECT_HASH_URL", -); - -typedef struct private_auth_cfg_t private_auth_cfg_t; - -/** - * private data of item_set - */ -struct private_auth_cfg_t { - - /** - * public functions - */ - auth_cfg_t public; - - /** - * list of entry_t - */ - linked_list_t *entries; -}; - -typedef struct entry_t entry_t; - -struct entry_t { - /** rule type */ - auth_rule_t type; - /** associated value */ - void *value; -}; - -/** - * enumerator for auth_cfg_t.create_enumerator() - */ -typedef struct { - /** implements enumerator_t */ - enumerator_t public; - /** inner enumerator from linked_list_t */ - enumerator_t *inner; - /** current entry */ - entry_t *current; -} entry_enumerator_t; - -/** - * enumerate function for item_enumerator_t - */ -static bool enumerate(entry_enumerator_t *this, auth_rule_t *type, void **value) -{ - entry_t *entry; - - if (this->inner->enumerate(this->inner, &entry)) - { - this->current = entry; - *type = entry->type; - *value = entry->value; - return TRUE; - } - return FALSE; -} - -/** - * destroy function for item_enumerator_t - */ -static void entry_enumerator_destroy(entry_enumerator_t *this) -{ - this->inner->destroy(this->inner); - free(this); -} - -/** - * Implementation of auth_cfg_t.create_enumerator. - */ -static enumerator_t* create_enumerator(private_auth_cfg_t *this) -{ - entry_enumerator_t *enumerator; - - enumerator = malloc_thing(entry_enumerator_t); - enumerator->inner = this->entries->create_enumerator(this->entries); - enumerator->public.enumerate = (void*)enumerate; - enumerator->public.destroy = (void*)entry_enumerator_destroy; - enumerator->current = NULL; - return &enumerator->public; -} - -/** - * Destroy the value associated with an entry - */ -static void destroy_entry_value(entry_t *entry) -{ - switch (entry->type) - { - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - { - identification_t *id = (identification_t*)entry->value; - id->destroy(id); - break; - } - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - { - certificate_t *cert = (certificate_t*)entry->value; - cert->destroy(cert); - break; - } - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - { - free(entry->value); - break; - } - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - break; - } -} - -/** - * Implementation of auth_cfg_t.replace. - */ -static void replace(auth_cfg_t *this, entry_enumerator_t *enumerator, - auth_rule_t type, ...) -{ - if (enumerator->current) - { - va_list args; - - va_start(args, type); - - destroy_entry_value(enumerator->current); - enumerator->current->type = type; - switch (type) - { - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - /* integer type */ - enumerator->current->value = (void*)(uintptr_t)va_arg(args, u_int); - break; - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - /* pointer type */ - enumerator->current->value = va_arg(args, void*); - break; - } - va_end(args); - } -} - -/** - * Implementation of auth_cfg_t.get. - */ -static void* get(private_auth_cfg_t *this, auth_rule_t type) -{ - enumerator_t *enumerator; - void *current_value, *best_value = NULL; - auth_rule_t current_type; - bool found = FALSE; - - enumerator = create_enumerator(this); - while (enumerator->enumerate(enumerator, ¤t_type, ¤t_value)) - { - if (type == current_type) - { - if (type == AUTH_RULE_CRL_VALIDATION || - type == AUTH_RULE_OCSP_VALIDATION) - { /* for CRL/OCSP validation, always get() the highest value */ - if (!found || current_value > best_value) - { - best_value = current_value; - } - found = TRUE; - continue; - } - best_value = current_value; - found = TRUE; - break; - } - } - enumerator->destroy(enumerator); - if (found) - { - return best_value; - } - switch (type) - { - /* use some sane defaults if we don't find an entry */ - case AUTH_RULE_AUTH_CLASS: - return (void*)AUTH_CLASS_ANY; - case AUTH_RULE_EAP_TYPE: - return (void*)EAP_NAK; - case AUTH_RULE_EAP_VENDOR: - return (void*)0; - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - return (void*)VALIDATION_FAILED; - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - default: - return NULL; - } -} - -/** - * Implementation of auth_cfg_t.add. - */ -static void add(private_auth_cfg_t *this, auth_rule_t type, ...) -{ - entry_t *entry = malloc_thing(entry_t); - va_list args; - - va_start(args, type); - entry->type = type; - switch (type) - { - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - /* integer type */ - entry->value = (void*)(uintptr_t)va_arg(args, u_int); - break; - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - /* pointer type */ - entry->value = va_arg(args, void*); - break; - } - va_end(args); - this->entries->insert_last(this->entries, entry); -} - -/** - * Implementation of auth_cfg_t.complies. - */ -static bool complies(private_auth_cfg_t *this, auth_cfg_t *constraints, - bool log_error) -{ - enumerator_t *e1, *e2; - bool success = TRUE; - auth_rule_t t1, t2; - void *value; - - e1 = constraints->create_enumerator(constraints); - while (e1->enumerate(e1, &t1, &value)) - { - switch (t1) - { - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - { - certificate_t *c1, *c2; - - c1 = (certificate_t*)value; - - success = FALSE; - e2 = create_enumerator(this); - while (e2->enumerate(e2, &t2, &c2)) - { - if ((t2 == AUTH_RULE_CA_CERT || t2 == AUTH_RULE_IM_CERT) && - c1->equals(c1, c2)) - { - success = TRUE; - } - } - e2->destroy(e2); - if (!success && log_error) - { - DBG1(DBG_CFG, "constraint check failed: peer not " - "authenticated by CA '%Y'.", c1->get_subject(c1)); - } - break; - } - case AUTH_RULE_SUBJECT_CERT: - { - certificate_t *c1, *c2; - - c1 = (certificate_t*)value; - c2 = get(this, AUTH_RULE_SUBJECT_CERT); - if (!c2 || !c1->equals(c1, c2)) - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint check failed: peer not " - "authenticated with peer cert '%Y'.", - c1->get_subject(c1)); - } - } - break; - } - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - { - cert_validation_t validated, required; - - required = (uintptr_t)value; - validated = (uintptr_t)get(this, t1); - switch (required) - { - case VALIDATION_FAILED: - /* no constraint */ - break; - case VALIDATION_SKIPPED: - if (validated == VALIDATION_SKIPPED) - { - break; - } - /* FALL */ - case VALIDATION_GOOD: - if (validated == VALIDATION_GOOD) - { - break; - } - /* FALL */ - default: - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint check failed: %N is %N, " - "but requires at least %N", auth_rule_names, - t1, cert_validation_names, validated, - cert_validation_names, required); - } - break; - } - break; - } - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - { - identification_t *id1, *id2; - - id1 = (identification_t*)value; - id2 = get(this, t1); - if (!id2 || !id2->matches(id2, id1)) - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint check failed: %sidentity '%Y'" - " required ", t1 == AUTH_RULE_IDENTITY ? "" : - "EAP ", id1); - } - } - break; - } - case AUTH_RULE_AUTH_CLASS: - { - if ((uintptr_t)value != AUTH_CLASS_ANY && - (uintptr_t)value != (uintptr_t)get(this, t1)) - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint requires %N authentication, " - "but %N was used", auth_class_names, (uintptr_t)value, - auth_class_names, (uintptr_t)get(this, t1)); - } - } - break; - } - case AUTH_RULE_EAP_TYPE: - { - if ((uintptr_t)value != (uintptr_t)get(this, t1)) - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint requires %N, " - "but %N was used", eap_type_names, (uintptr_t)value, - eap_type_names, (uintptr_t)get(this, t1)); - } - } - break; - } - case AUTH_RULE_EAP_VENDOR: - { - if ((uintptr_t)value != (uintptr_t)get(this, t1)) - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint requires EAP vendor %d, " - "but %d was used", (uintptr_t)value, - (uintptr_t)get(this, t1)); - } - } - break; - } - case AUTH_RULE_AC_GROUP: - { - success = FALSE; - if (log_error) - { - DBG1(DBG_CFG, "constraint check %N not implemented!", - auth_rule_names, t1); - } - break; - } - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - /* skip helpers */ - continue; - } - if (!success) - { - break; - } - } - e1->destroy(e1); - return success; -} - -/** - * Implementation of auth_cfg_t.merge. - */ -static void merge(private_auth_cfg_t *this, private_auth_cfg_t *other, bool copy) -{ - if (!other) - { /* nothing to merge */ - return; - } - if (copy) - { - enumerator_t *enumerator; - auth_rule_t type; - void *value; - - enumerator = create_enumerator(other); - while (enumerator->enumerate(enumerator, &type, &value)) - { - switch (type) - { - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - { - certificate_t *cert = (certificate_t*)value; - - add(this, type, cert->get_ref(cert)); - break; - } - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - { - add(this, type, (uintptr_t)value); - break; - } - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - { - identification_t *id = (identification_t*)value; - - add(this, type, id->clone(id)); - break; - } - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - { - add(this, type, strdup((char*)value)); - break; - } - } - } - enumerator->destroy(enumerator); - } - else - { - entry_t *entry; - - while (other->entries->remove_first(other->entries, - (void**)&entry) == SUCCESS) - { - this->entries->insert_last(this->entries, entry); - } - } -} - -/** - * Implementation of auth_cfg_t.equals. - */ -static bool equals(private_auth_cfg_t *this, private_auth_cfg_t *other) -{ - enumerator_t *e1, *e2; - entry_t *i1, *i2; - bool equal = TRUE, found; - - if (this->entries->get_count(this->entries) != - other->entries->get_count(other->entries)) - { - return FALSE; - } - e1 = this->entries->create_enumerator(this->entries); - while (e1->enumerate(e1, &i1)) - { - found = FALSE; - e2 = other->entries->create_enumerator(other->entries); - while (e2->enumerate(e2, &i2)) - { - if (i1->type == i2->type) - { - switch (i1->type) - { - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - { - if (i1->value == i2->value) - { - found = TRUE; - break; - } - continue; - } - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - { - certificate_t *c1, *c2; - - c1 = (certificate_t*)i1->value; - c2 = (certificate_t*)i2->value; - - if (c1->equals(c1, c2)) - { - found = TRUE; - break; - } - continue; - } - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - { - identification_t *id1, *id2; - - id1 = (identification_t*)i1->value; - id2 = (identification_t*)i2->value; - - if (id1->equals(id1, id2)) - { - found = TRUE; - break; - } - continue; - } - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - { - if (streq(i1->value, i2->value)) - { - found = TRUE; - break; - } - continue; - } - } - break; - } - } - e2->destroy(e2); - if (!found) - { - equal = FALSE; - break; - } - } - e1->destroy(e1); - return equal; -} - -/** - * Implementation of auth_cfg_t.purge - */ -static void purge(private_auth_cfg_t *this, bool keep_ca) -{ - entry_t *entry; - linked_list_t *cas; - - cas = linked_list_create(); - while (this->entries->remove_last(this->entries, (void**)&entry) == SUCCESS) - { - if (keep_ca && entry->type == AUTH_RULE_CA_CERT) - { - cas->insert_first(cas, entry); - } - else - { - destroy_entry_value(entry); - free(entry); - } - } - while (cas->remove_last(cas, (void**)&entry) == SUCCESS) - { - this->entries->insert_first(this->entries, entry); - } - cas->destroy(cas); -} - -/** - * Implementation of auth_cfg_t.clone - */ -static auth_cfg_t* clone_(private_auth_cfg_t *this) -{ - enumerator_t *enumerator; - auth_cfg_t *clone; - entry_t *entry; - - clone = auth_cfg_create(); - enumerator = this->entries->create_enumerator(this->entries); - while (enumerator->enumerate(enumerator, &entry)) - { - switch (entry->type) - { - case AUTH_RULE_IDENTITY: - case AUTH_RULE_EAP_IDENTITY: - case AUTH_RULE_AC_GROUP: - { - identification_t *id = (identification_t*)entry->value; - clone->add(clone, entry->type, id->clone(id)); - break; - } - case AUTH_RULE_CA_CERT: - case AUTH_RULE_IM_CERT: - case AUTH_RULE_SUBJECT_CERT: - case AUTH_HELPER_IM_CERT: - case AUTH_HELPER_SUBJECT_CERT: - { - certificate_t *cert = (certificate_t*)entry->value; - clone->add(clone, entry->type, cert->get_ref(cert)); - break; - } - case AUTH_HELPER_IM_HASH_URL: - case AUTH_HELPER_SUBJECT_HASH_URL: - { - clone->add(clone, entry->type, strdup(entry->value)); - break; - } - case AUTH_RULE_AUTH_CLASS: - case AUTH_RULE_EAP_TYPE: - case AUTH_RULE_EAP_VENDOR: - case AUTH_RULE_CRL_VALIDATION: - case AUTH_RULE_OCSP_VALIDATION: - clone->add(clone, entry->type, (uintptr_t)entry->value); - break; - } - } - enumerator->destroy(enumerator); - return clone; -} - -/** - * Implementation of auth_cfg_t.destroy - */ -static void destroy(private_auth_cfg_t *this) -{ - purge(this, FALSE); - this->entries->destroy(this->entries); - free(this); -} - -/* - * see header file - */ -auth_cfg_t *auth_cfg_create() -{ - private_auth_cfg_t *this = malloc_thing(private_auth_cfg_t); - - this->public.add = (void(*)(auth_cfg_t*, auth_rule_t type, ...))add; - this->public.get = (void*(*)(auth_cfg_t*, auth_rule_t type))get; - this->public.create_enumerator = (enumerator_t*(*)(auth_cfg_t*))create_enumerator; - this->public.replace = (void(*)(auth_cfg_t*,enumerator_t*,auth_rule_t,...))replace; - this->public.complies = (bool(*)(auth_cfg_t*, auth_cfg_t *,bool))complies; - this->public.merge = (void(*)(auth_cfg_t*, auth_cfg_t *other,bool))merge; - this->public.purge = (void(*)(auth_cfg_t*,bool))purge; - this->public.equals = (bool(*)(auth_cfg_t*, auth_cfg_t *other))equals; - this->public.clone = (auth_cfg_t*(*)(auth_cfg_t*))clone_; - this->public.destroy = (void(*)(auth_cfg_t*))destroy; - - this->entries = linked_list_create(); - - return &this->public; -} - |