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Diffstat (limited to 'rpc_client.c')
| -rw-r--r-- | rpc_client.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/rpc_client.c b/rpc_client.c new file mode 100644 index 0000000..4a755af --- /dev/null +++ b/rpc_client.c @@ -0,0 +1,287 @@ +/* + * rpc_client.c + * ------------ + * Remote procedure call client-side private API implementation. + * + * Authors: Rob Austein + * Copyright (c) 2015, NORDUnet A/S All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of the NORDUnet nor the names of its contributors may + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "rpc_internal.h" + +/* + * RPC calls. Not implemented yet. + */ + +#warning These are all placeholders, waiting to be filled in with the real RPC calls + +static hal_error_t get_random(void *buffer, const size_t length) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t set_pin(const hal_rpc_user_t which, + const char * const newpin, const size_t newpin_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t login(const hal_rpc_client_handle_t client, + const hal_rpc_user_t user, + const char * const pin, const size_t pin_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t logout(const hal_rpc_client_handle_t client) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_get_digest_len(const hal_rpc_hash_alg_t alg, size_t *length) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_get_digest_algorithm_id(const hal_rpc_hash_alg_t alg, + uint8_t *id, size_t *len, const size_t len_max) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_get_algorithm(const hal_rpc_hash_handle_t hash, hal_rpc_hash_alg_t *alg) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_initialize(const hal_rpc_client_handle_t client, + const hal_rpc_session_handle_t session, + hal_rpc_hash_handle_t *hash, + const hal_rpc_hash_alg_t alg, + const uint8_t * const key, const size_t key_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_update(const hal_rpc_hash_handle_t hash, + const uint8_t * data, const size_t length) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t hash_finalize(const hal_rpc_hash_handle_t hash, + uint8_t *digest, const size_t length) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_load(const hal_rpc_client_handle_t client, + const hal_rpc_session_handle_t session, + hal_rpc_pkey_handle_t *pkey, + const hal_rpc_pkey_key_type_t type, + const hal_rpc_pkey_curve_t curve, + const uint8_t * const name, const size_t name_len, + const uint8_t * const der, const size_t der_len, + const hal_rpc_pkey_flags_t flags) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_find(const hal_rpc_client_handle_t client, + const hal_rpc_session_handle_t session, + hal_rpc_pkey_handle_t *pkey, + const hal_rpc_pkey_key_type_t type, + const uint8_t * const name, const size_t name_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_generate_rsa(const hal_rpc_client_handle_t client, + const hal_rpc_session_handle_t session, + hal_rpc_pkey_handle_t *pkey, + const uint8_t * const name, const size_t name_len, + const unsigned key_len, + const uint8_t * const exp, const size_t exp_len, + const hal_rpc_pkey_flags_t flags) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_generate_ec(const hal_rpc_client_handle_t client, + const hal_rpc_session_handle_t session, + hal_rpc_pkey_handle_t *pkey, + const uint8_t * const name, const size_t name_len, + const hal_rpc_pkey_curve_t curve, + const hal_rpc_pkey_flags_t flags) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_delete(const hal_rpc_pkey_handle_t pkey) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_get_key_type(const hal_rpc_pkey_handle_t pkey, + hal_rpc_pkey_key_type_t *type) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_get_key_flags(const hal_rpc_pkey_handle_t pkey, + hal_rpc_pkey_flags_t *flags) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static size_t pkey_get_public_key_len(const hal_rpc_pkey_handle_t pkey) +{ + return 0; +} + +static hal_error_t pkey_get_public_key(const hal_rpc_pkey_handle_t pkey, + uint8_t *der, size_t *der_len, const size_t der_len_max) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_remote_sign(const hal_rpc_session_handle_t session, + const hal_rpc_pkey_handle_t pkey, + const hal_rpc_hash_handle_t hash, + const uint8_t * const input, const size_t input_len, + uint8_t * output, const size_t output_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_remote_verify(const hal_rpc_session_handle_t session, + const hal_rpc_pkey_handle_t pkey, + const hal_rpc_hash_handle_t hash, + const uint8_t * const input, const size_t input_len, + uint8_t * output, const size_t output_len) +{ + return HAL_ERROR_IMPOSSIBLE; +} + +static hal_error_t pkey_list(hal_rpc_pkey_key_info_t *result, + unsigned *result_len, + const unsigned result_max) +{ + return HAL_ERROR_IMPOSSIBLE; +} + + +/* + * "Mixed" mode pkey operations, where the public key operation itself + * takes place on the HSM but the hashing takes place locally. If + * we're given a hash context in this case, it's local, so we have to + * pull the digest from the hash context and send that to the HSM. + */ + +static hal_error_t pkey_mixed_sign(const hal_rpc_session_handle_t session, + const hal_rpc_pkey_handle_t pkey, + const hal_rpc_hash_handle_t hash, + const uint8_t * const input, const size_t input_len, + uint8_t * output, const size_t output_len) +{ + if (input != NULL) + return pkey_remote_sign(session, pkey, hash, input, input_len, output, output_len); + + hal_rpc_hash_alg_t alg; + size_t digest_len; + hal_error_t err; + + if ((err = hal_rpc_hash_get_algorithm(hash, &alg)) != HAL_OK || + (err = hal_rpc_hash_get_digest_length(alg, &digest_len)) != HAL_OK) + return err; + + uint8_t digest[digest_len]; + + if ((err = hal_rpc_hash_finalize(hash, digest, digest_len)) != HAL_OK) + return err; + + return pkey_remote_sign(session, pkey, hal_rpc_hash_handle_none, digest, digest_len, output, output_len); +} + +static hal_error_t pkey_mixed_verify(const hal_rpc_session_handle_t session, + const hal_rpc_pkey_handle_t pkey, + const hal_rpc_hash_handle_t hash, + const uint8_t * const input, const size_t input_len, + uint8_t * output, const size_t output_len) +{ + if (input != NULL) + return pkey_remote_verify(session, pkey, hash, input, input_len, output, output_len); + + hal_rpc_hash_alg_t alg; + size_t digest_len; + hal_error_t err; + + if ((err = hal_rpc_hash_get_algorithm(hash, &alg)) != HAL_OK || + (err = hal_rpc_hash_get_digest_length(alg, &digest_len)) != HAL_OK) + return err; + + uint8_t digest[digest_len]; + + if ((err = hal_rpc_hash_finalize(hash, digest, digest_len)) != HAL_OK) + return err; + + return pkey_remote_verify(session, pkey, hal_rpc_hash_handle_none, digest, digest_len, output, output_len); +} + +/* + * Dispatch vectors. + */ + +const hal_rpc_misc_dispatch_t hal_rpc_remote_misc_dispatch = { + set_pin, login, logout, get_random +}; + +const hal_rpc_hash_dispatch_t hal_rpc_remote_hash_dispatch = { + hash_get_digest_len, hash_get_digest_algorithm_id, hash_get_algorithm, hash_initialize, hash_update, hash_finalize +}; + +const hal_rpc_pkey_dispatch_t hal_rpc_remote_pkey_dispatch = { + pkey_load, pkey_find, pkey_generate_rsa, pkey_generate_ec, pkey_delete, + pkey_get_key_type, pkey_get_key_flags, pkey_get_public_key_len, pkey_get_public_key, + pkey_remote_sign, pkey_remote_verify, + pkey_list +}; + +const hal_rpc_pkey_dispatch_t hal_rpc_mixed_pkey_dispatch = { + pkey_load, pkey_find, pkey_generate_rsa, pkey_generate_ec, pkey_delete, + pkey_get_key_type, pkey_get_key_flags, pkey_get_public_key_len, pkey_get_public_key, + pkey_mixed_sign, pkey_mixed_verify, + pkey_list +}; + +/* + * Local variables: + * indent-tabs-mode: nil + * End: + */ |