diff options
Diffstat (limited to 'src/libcharon/plugins/nm/nm_creds.c')
-rw-r--r-- | src/libcharon/plugins/nm/nm_creds.c | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/src/libcharon/plugins/nm/nm_creds.c b/src/libcharon/plugins/nm/nm_creds.c deleted file mode 100644 index f8fae9504..000000000 --- a/src/libcharon/plugins/nm/nm_creds.c +++ /dev/null @@ -1,490 +0,0 @@ -/* - * Copyright (C) 2008 Martin Willi - * 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 "nm_creds.h" - -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> - -#include <daemon.h> -#include <threading/rwlock.h> -#include <credentials/certificates/x509.h> - -typedef struct private_nm_creds_t private_nm_creds_t; - -/** - * private data of nm_creds - */ -struct private_nm_creds_t { - - /** - * public functions - */ - nm_creds_t public; - - /** - * List of trusted certificates, certificate_t* - */ - linked_list_t *certs; - - /** - * User name - */ - identification_t *user; - - /** - * User password - */ - char *pass; - - /** - * Private key decryption password / smartcard pin - */ - char *keypass; - - /** - * private key ID of smartcard key - */ - chunk_t keyid; - - /** - * users certificate - */ - certificate_t *usercert; - - /** - * users private key - */ - private_key_t *key; - - /** - * read/write lock - */ - rwlock_t *lock; -}; - -/** - * Enumerator for user certificate - */ -static enumerator_t *create_usercert_enumerator(private_nm_creds_t *this, - certificate_type_t cert, key_type_t key) -{ - public_key_t *public; - - if (cert != CERT_ANY && cert != this->usercert->get_type(this->usercert)) - { - return NULL; - } - if (key != KEY_ANY) - { - public = this->usercert->get_public_key(this->usercert); - if (!public) - { - return NULL; - } - if (public->get_type(public) != key) - { - public->destroy(public); - return NULL; - } - public->destroy(public); - } - this->lock->read_lock(this->lock); - return enumerator_create_cleaner( - enumerator_create_single(this->usercert, NULL), - (void*)this->lock->unlock, this->lock); -} - -/** - * CA certificate enumerator data - */ -typedef struct { - /** ref to credential credential store */ - private_nm_creds_t *this; - /** type of key we are looking for */ - key_type_t key; - /** CA certificate ID */ - identification_t *id; -} cert_data_t; - -/** - * Destroy CA certificate enumerator data - */ -static void cert_data_destroy(cert_data_t *data) -{ - data->this->lock->unlock(data->this->lock); - free(data); -} - -/** - * Filter function for certificates enumerator - */ -static bool cert_filter(cert_data_t *data, certificate_t **in, - certificate_t **out) -{ - certificate_t *cert = *in; - public_key_t *public; - - public = cert->get_public_key(cert); - if (!public) - { - return FALSE; - } - if (data->key != KEY_ANY && public->get_type(public) != data->key) - { - public->destroy(public); - return FALSE; - } - if (data->id && data->id->get_type(data->id) == ID_KEY_ID && - public->has_fingerprint(public, data->id->get_encoding(data->id))) - { - public->destroy(public); - *out = cert; - return TRUE; - } - public->destroy(public); - if (data->id && !cert->has_subject(cert, data->id)) - { - return FALSE; - } - *out = cert; - return TRUE; -} - -/** - * Create enumerator for trusted certificates - */ -static enumerator_t *create_trusted_cert_enumerator(private_nm_creds_t *this, - key_type_t key, identification_t *id) -{ - cert_data_t *data; - - INIT(data, - .this = this, - .id = id, - .key = key, - ); - - this->lock->read_lock(this->lock); - return enumerator_create_filter( - this->certs->create_enumerator(this->certs), - (void*)cert_filter, data, (void*)cert_data_destroy); -} - -METHOD(credential_set_t, create_cert_enumerator, enumerator_t*, - private_nm_creds_t *this, certificate_type_t cert, key_type_t key, - identification_t *id, bool trusted) -{ - if (id && this->usercert && - id->equals(id, this->usercert->get_subject(this->usercert))) - { - return create_usercert_enumerator(this, cert, key); - } - if (cert == CERT_X509 || cert == CERT_ANY) - { - return create_trusted_cert_enumerator(this, key, id); - } - return NULL; -} - -METHOD(credential_set_t, create_private_enumerator, enumerator_t*, - private_nm_creds_t *this, key_type_t type, identification_t *id) -{ - if (this->key == NULL) - { - return NULL; - } - if (type != KEY_ANY && type != this->key->get_type(this->key)) - { - return NULL; - } - if (id && id->get_type(id) != ID_ANY) - { - if (id->get_type(id) != ID_KEY_ID || - !this->key->has_fingerprint(this->key, id->get_encoding(id))) - { - return NULL; - } - } - this->lock->read_lock(this->lock); - return enumerator_create_cleaner(enumerator_create_single(this->key, NULL), - (void*)this->lock->unlock, this->lock); -} - -/** - * shared key enumerator implementation - */ -typedef struct { - enumerator_t public; - private_nm_creds_t *this; - shared_key_t *key; - bool done; -} shared_enumerator_t; - -METHOD(enumerator_t, shared_enumerate, bool, - shared_enumerator_t *this, shared_key_t **key, id_match_t *me, - id_match_t *other) -{ - if (this->done) - { - return FALSE; - } - *key = this->key; - if (me) - { - *me = ID_MATCH_PERFECT; - } - if (other) - { - *other = ID_MATCH_ANY; - } - this->done = TRUE; - return TRUE; -} - -METHOD(enumerator_t, shared_destroy, void, - shared_enumerator_t *this) -{ - this->key->destroy(this->key); - this->this->lock->unlock(this->this->lock); - free(this); -} - -METHOD(credential_set_t, create_shared_enumerator, enumerator_t*, - private_nm_creds_t *this, shared_key_type_t type, identification_t *me, - identification_t *other) -{ - shared_enumerator_t *enumerator; - chunk_t key; - - this->lock->read_lock(this->lock); - - switch (type) - { - case SHARED_EAP: - case SHARED_IKE: - if (!this->pass || !this->user) - { - goto no_secret; - } - if (me && !me->equals(me, this->user)) - { - goto no_secret; - } - key = chunk_create(this->pass, strlen(this->pass)); - break; - case SHARED_PRIVATE_KEY_PASS: - if (!this->keypass) - { - goto no_secret; - } - key = chunk_create(this->keypass, strlen(this->keypass)); - break; - case SHARED_PIN: - if (!this->keypass || !me || - !chunk_equals(me->get_encoding(me), this->keyid)) - { - goto no_secret; - } - key = chunk_create(this->keypass, strlen(this->keypass)); - break; - default: - goto no_secret; - } - - INIT(enumerator, - .public = { - .enumerate = (void*)_shared_enumerate, - .destroy = _shared_destroy, - }, - .this = this, - ); - enumerator->key = shared_key_create(type, chunk_clone(key)); - return &enumerator->public; - -no_secret: - this->lock->unlock(this->lock); - return NULL; -} - -METHOD(nm_creds_t, add_certificate, void, - private_nm_creds_t *this, certificate_t *cert) -{ - this->lock->write_lock(this->lock); - this->certs->insert_last(this->certs, cert); - this->lock->unlock(this->lock); -} - -/** - * Load a certificate file - */ -static void load_ca_file(private_nm_creds_t *this, char *file) -{ - certificate_t *cert; - - /* We add the CA constraint, as many CAs miss it */ - cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, CERT_X509, - BUILD_FROM_FILE, file, BUILD_END); - if (!cert) - { - DBG1(DBG_CFG, "loading CA certificate '%s' failed", file); - } - else - { - DBG2(DBG_CFG, "loaded CA certificate '%Y'", cert->get_subject(cert)); - x509_t *x509 = (x509_t*)cert; - if (!(x509->get_flags(x509) & X509_SELF_SIGNED)) - { - DBG1(DBG_CFG, "%Y is not self signed", cert->get_subject(cert)); - } - this->certs->insert_last(this->certs, cert); - } -} - -METHOD(nm_creds_t, load_ca_dir, void, - private_nm_creds_t *this, char *dir) -{ - enumerator_t *enumerator; - char *rel, *abs; - struct stat st; - - enumerator = enumerator_create_directory(dir); - if (enumerator) - { - while (enumerator->enumerate(enumerator, &rel, &abs, &st)) - { - /* skip '.', '..' and hidden files */ - if (rel[0] != '.') - { - if (S_ISDIR(st.st_mode)) - { - load_ca_dir(this, abs); - } - else if (S_ISREG(st.st_mode)) - { - load_ca_file(this, abs); - } - } - } - enumerator->destroy(enumerator); - } -} - -METHOD(nm_creds_t, set_username_password, void, - private_nm_creds_t *this, identification_t *id, char *password) -{ - this->lock->write_lock(this->lock); - DESTROY_IF(this->user); - this->user = id->clone(id); - free(this->pass); - this->pass = strdupnull(password); - this->lock->unlock(this->lock); -} - -METHOD(nm_creds_t, set_key_password, void, - private_nm_creds_t *this, char *password) -{ - this->lock->write_lock(this->lock); - free(this->keypass); - this->keypass = strdupnull(password); - this->lock->unlock(this->lock); -} - -METHOD(nm_creds_t, set_pin, void, - private_nm_creds_t *this, chunk_t keyid, char *pin) -{ - this->lock->write_lock(this->lock); - free(this->keypass); - free(this->keyid.ptr); - this->keypass = strdupnull(pin); - this->keyid = chunk_clone(keyid); - this->lock->unlock(this->lock); -} - -METHOD(nm_creds_t, set_cert_and_key, void, - private_nm_creds_t *this, certificate_t *cert, private_key_t *key) -{ - this->lock->write_lock(this->lock); - DESTROY_IF(this->key); - DESTROY_IF(this->usercert); - this->key = key; - this->usercert = cert; - this->lock->unlock(this->lock); -} - -METHOD(nm_creds_t, clear, void, - private_nm_creds_t *this) -{ - certificate_t *cert; - - while (this->certs->remove_last(this->certs, (void**)&cert) == SUCCESS) - { - cert->destroy(cert); - } - DESTROY_IF(this->user); - free(this->pass); - free(this->keypass); - free(this->keyid.ptr); - DESTROY_IF(this->usercert); - DESTROY_IF(this->key); - this->key = NULL; - this->usercert = NULL; - this->pass = NULL; - this->user = NULL; - this->keypass = NULL; - this->keyid = chunk_empty; -} - -METHOD(nm_creds_t, destroy, void, - private_nm_creds_t *this) -{ - clear(this); - this->certs->destroy(this->certs); - this->lock->destroy(this->lock); - free(this); -} - -/* - * see header file - */ -nm_creds_t *nm_creds_create() -{ - private_nm_creds_t *this; - - INIT(this, - .public = { - .set = { - .create_private_enumerator = _create_private_enumerator, - .create_cert_enumerator = _create_cert_enumerator, - .create_shared_enumerator = _create_shared_enumerator, - .create_cdp_enumerator = (void*)return_null, - .cache_cert = (void*)nop, - }, - .add_certificate = _add_certificate, - .load_ca_dir = _load_ca_dir, - .set_username_password = _set_username_password, - .set_key_password = _set_key_password, - .set_pin = _set_pin, - .set_cert_and_key = _set_cert_and_key, - .clear = _clear, - .destroy = _destroy, - }, - .lock = rwlock_create(RWLOCK_TYPE_DEFAULT), - .certs = linked_list_create(), - ); - return &this->public; -} - |