/* * Copyright (c) 2018-2022 Yubico AB. All rights reserved. * Use of this source code is governed by a BSD-style * license that can be found in the LICENSE file. * SPDX-License-Identifier: BSD-2-Clause */ #ifndef _EXTERN_H #define _EXTERN_H #ifdef __MINGW32__ #include #endif #ifdef HAVE_SIGNAL_H #include #endif #include #include "fido/types.h" #include "blob.h" #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* aes256 */ int aes256_cbc_dec(const fido_dev_t *dev, const fido_blob_t *, const fido_blob_t *, fido_blob_t *); int aes256_cbc_enc(const fido_dev_t *dev, const fido_blob_t *, const fido_blob_t *, fido_blob_t *); int aes256_gcm_dec(const fido_blob_t *, const fido_blob_t *, const fido_blob_t *, const fido_blob_t *, fido_blob_t *); int aes256_gcm_enc(const fido_blob_t *, const fido_blob_t *, const fido_blob_t *, const fido_blob_t *, fido_blob_t *); /* cbor encoding functions */ cbor_item_t *cbor_build_uint(const uint64_t); cbor_item_t *cbor_flatten_vector(cbor_item_t **, size_t); cbor_item_t *cbor_encode_assert_opt(fido_opt_t, fido_opt_t); cbor_item_t *cbor_encode_change_pin_auth(const fido_dev_t *, const fido_blob_t *, const fido_blob_t *, const fido_blob_t *); cbor_item_t *cbor_encode_cred_ext(const fido_cred_ext_t *, const fido_blob_t *); cbor_item_t *cbor_encode_assert_ext(fido_dev_t *, const fido_assert_ext_t *, const fido_blob_t *, const es256_pk_t *); cbor_item_t *cbor_encode_cred_opt(fido_opt_t, fido_opt_t); cbor_item_t *cbor_encode_pin_auth(const fido_dev_t *, const fido_blob_t *, const fido_blob_t *); cbor_item_t *cbor_encode_pin_opt(const fido_dev_t *); cbor_item_t *cbor_encode_pubkey(const fido_blob_t *); cbor_item_t *cbor_encode_pubkey_list(const fido_blob_array_t *); cbor_item_t *cbor_encode_pubkey_param(int); cbor_item_t *cbor_encode_rp_entity(const fido_rp_t *); cbor_item_t *cbor_encode_str_array(const fido_str_array_t *); cbor_item_t *cbor_encode_user_entity(const fido_user_t *); cbor_item_t *es256_pk_encode(const es256_pk_t *, int); /* cbor decoding functions */ int cbor_decode_attstmt(const cbor_item_t *, fido_attstmt_t *); int cbor_decode_attobj(const cbor_item_t *, fido_cred_t *); int cbor_decode_bool(const cbor_item_t *, bool *); int cbor_decode_cred_authdata(const cbor_item_t *, int, fido_blob_t *, fido_authdata_t *, fido_attcred_t *, fido_cred_ext_t *); int cbor_decode_assert_authdata(const cbor_item_t *, fido_blob_t *, fido_authdata_t *, fido_assert_extattr_t *); int cbor_decode_cred_id(const cbor_item_t *, fido_blob_t *); int cbor_decode_fmt(const cbor_item_t *, char **); int cbor_decode_pubkey(const cbor_item_t *, int *, void *); int cbor_decode_rp_entity(const cbor_item_t *, fido_rp_t *); int cbor_decode_uint64(const cbor_item_t *, uint64_t *); int cbor_decode_user(const cbor_item_t *, fido_user_t *); int es256_pk_decode(const cbor_item_t *, es256_pk_t *); int es384_pk_decode(const cbor_item_t *, es384_pk_t *); int rs256_pk_decode(const cbor_item_t *, rs256_pk_t *); int eddsa_pk_decode(const cbor_item_t *, eddsa_pk_t *); /* auxiliary cbor routines */ int cbor_add_bool(cbor_item_t *, const char *, fido_opt_t); int cbor_add_bytestring(cbor_item_t *, const char *, const unsigned char *, size_t); int cbor_add_string(cbor_item_t *, const char *, const char *); int cbor_array_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *, void *)); int cbor_build_frame(uint8_t, cbor_item_t *[], size_t, fido_blob_t *); int cbor_bytestring_copy(const cbor_item_t *, unsigned char **, size_t *); int cbor_map_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *, const cbor_item_t *, void *)); int cbor_string_copy(const cbor_item_t *, char **); int cbor_parse_reply(const unsigned char *, size_t, void *, int(*)(const cbor_item_t *, const cbor_item_t *, void *)); int cbor_add_uv_params(fido_dev_t *, uint8_t, const fido_blob_t *, const es256_pk_t *, const fido_blob_t *, const char *, const char *, cbor_item_t **, cbor_item_t **, int *); void cbor_vector_free(cbor_item_t **, size_t); int cbor_array_append(cbor_item_t **, cbor_item_t *); int cbor_array_drop(cbor_item_t **, size_t); /* deflate */ int fido_compress(fido_blob_t *, const fido_blob_t *); int fido_uncompress(fido_blob_t *, const fido_blob_t *, size_t); #ifndef nitems #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) #endif /* buf */ int fido_buf_read(const unsigned char **, size_t *, void *, size_t); int fido_buf_write(unsigned char **, size_t *, const void *, size_t); /* hid i/o */ void *fido_hid_open(const char *); void fido_hid_close(void *); int fido_hid_read(void *, unsigned char *, size_t, int); int fido_hid_write(void *, const unsigned char *, size_t); int fido_hid_get_usage(const uint8_t *, size_t, uint32_t *); int fido_hid_get_report_len(const uint8_t *, size_t, size_t *, size_t *); int fido_hid_unix_open(const char *); int fido_hid_unix_wait(int, int, const fido_sigset_t *); int fido_hid_set_sigmask(void *, const fido_sigset_t *); size_t fido_hid_report_in_len(void *); size_t fido_hid_report_out_len(void *); /* nfc i/o */ bool fido_is_nfc(const char *); bool nfc_is_fido(const char *); void *fido_nfc_open(const char *); void fido_nfc_close(void *); int fido_nfc_read(void *, unsigned char *, size_t, int); int fido_nfc_write(void *, const unsigned char *, size_t); int fido_nfc_rx(fido_dev_t *, uint8_t, unsigned char *, size_t, int); int fido_nfc_tx(fido_dev_t *, uint8_t, const unsigned char *, size_t); int fido_nfc_set_sigmask(void *, const fido_sigset_t *); int fido_dev_set_nfc(fido_dev_t *); /* pcsc i/o */ bool fido_is_pcsc(const char *); void *fido_pcsc_open(const char *); void fido_pcsc_close(void *); int fido_pcsc_read(void *, unsigned char *, size_t, int); int fido_pcsc_write(void *, const unsigned char *, size_t); int fido_pcsc_rx(fido_dev_t *, uint8_t, unsigned char *, size_t, int); int fido_pcsc_tx(fido_dev_t *, uint8_t, const unsigned char *, size_t); int fido_dev_set_pcsc(fido_dev_t *); /* windows hello */ int fido_winhello_manifest(fido_dev_info_t *, size_t, size_t *); int fido_winhello_open(fido_dev_t *); int fido_winhello_close(fido_dev_t *); int fido_winhello_cancel(fido_dev_t *); int fido_winhello_get_assert(fido_dev_t *, fido_assert_t *, const char *, int); int fido_winhello_get_cbor_info(fido_dev_t *, fido_cbor_info_t *); int fido_winhello_make_cred(fido_dev_t *, fido_cred_t *, const char *, int); /* generic i/o */ int fido_rx_cbor_status(fido_dev_t *, int *); int fido_rx(fido_dev_t *, uint8_t, void *, size_t, int *); int fido_tx(fido_dev_t *, uint8_t, const void *, size_t, int *); /* log */ #ifdef FIDO_NO_DIAGNOSTIC #define fido_log_init(...) do { /* nothing */ } while (0) #define fido_log_debug(...) do { /* nothing */ } while (0) #define fido_log_xxd(...) do { /* nothing */ } while (0) #define fido_log_error(...) do { /* nothing */ } while (0) #else #ifdef __GNUC__ void fido_log_init(void); void fido_log_debug(const char *, ...) __attribute__((__format__ (printf, 1, 2))); void fido_log_xxd(const void *, size_t, const char *, ...) __attribute__((__format__ (printf, 3, 4))); void fido_log_error(int, const char *, ...) __attribute__((__format__ (printf, 2, 3))); #else void fido_log_init(void); void fido_log_debug(const char *, ...); void fido_log_xxd(const void *, size_t, const char *, ...); void fido_log_error(int, const char *, ...); #endif /* __GNUC__ */ #endif /* FIDO_NO_DIAGNOSTIC */ /* u2f */ int u2f_register(fido_dev_t *, fido_cred_t *, int *); int u2f_authenticate(fido_dev_t *, fido_assert_t *, int *); int u2f_get_touch_begin(fido_dev_t *, int *); int u2f_get_touch_status(fido_dev_t *, int *, int *); /* unexposed fido ops */ uint8_t fido_dev_get_pin_protocol(const fido_dev_t *); int fido_dev_authkey(fido_dev_t *, es256_pk_t *, int *); int fido_dev_get_cbor_info_wait(fido_dev_t *, fido_cbor_info_t *, int *); int fido_dev_get_uv_token(fido_dev_t *, uint8_t, const char *, const fido_blob_t *, const es256_pk_t *, const char *, fido_blob_t *, int *); uint64_t fido_dev_maxmsgsize(const fido_dev_t *); int fido_do_ecdh(fido_dev_t *, es256_pk_t **, fido_blob_t **, int *); /* types */ void fido_algo_array_free(fido_algo_array_t *); void fido_byte_array_free(fido_byte_array_t *); void fido_cert_array_free(fido_cert_array_t *); void fido_opt_array_free(fido_opt_array_t *); void fido_str_array_free(fido_str_array_t *); void fido_algo_free(fido_algo_t *); int fido_str_array_pack(fido_str_array_t *, const char * const *, size_t); /* misc */ void fido_assert_reset_rx(fido_assert_t *); void fido_assert_reset_tx(fido_assert_t *); void fido_cred_reset_rx(fido_cred_t *); void fido_cred_reset_tx(fido_cred_t *); void fido_cbor_info_reset(fido_cbor_info_t *); int fido_blob_serialise(fido_blob_t *, const cbor_item_t *); int fido_check_flags(uint8_t, fido_opt_t, fido_opt_t); int fido_check_rp_id(const char *, const unsigned char *); int fido_get_random(void *, size_t); int fido_sha256(fido_blob_t *, const u_char *, size_t); int fido_time_now(struct timespec *); int fido_time_delta(const struct timespec *, int *); int fido_to_uint64(const char *, int, uint64_t *); /* crypto */ int es256_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *); int es384_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *); int rs256_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *); int eddsa_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *); int rs1_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *); int es256_pk_verify_sig(const fido_blob_t *, const es256_pk_t *, const fido_blob_t *); int es384_pk_verify_sig(const fido_blob_t *, const es384_pk_t *, const fido_blob_t *); int rs256_pk_verify_sig(const fido_blob_t *, const rs256_pk_t *, const fido_blob_t *); int eddsa_pk_verify_sig(const fido_blob_t *, const eddsa_pk_t *, const fido_blob_t *); int fido_get_signed_hash(int, fido_blob_t *, const fido_blob_t *, const fido_blob_t *); int fido_get_signed_hash_tpm(fido_blob_t *, const fido_blob_t *, const fido_blob_t *, const fido_attstmt_t *, const fido_attcred_t *); /* device manifest functions */ int fido_hid_manifest(fido_dev_info_t *, size_t, size_t *); int fido_nfc_manifest(fido_dev_info_t *, size_t, size_t *); int fido_pcsc_manifest(fido_dev_info_t *, size_t, size_t *); /* fuzzing instrumentation */ #ifdef FIDO_FUZZ uint32_t uniform_random(uint32_t); #endif /* internal device capability flags */ #define FIDO_DEV_PIN_SET 0x0001 #define FIDO_DEV_PIN_UNSET 0x0002 #define FIDO_DEV_CRED_PROT 0x0004 #define FIDO_DEV_CREDMAN 0x0008 #define FIDO_DEV_PIN_PROTOCOL1 0x0010 #define FIDO_DEV_PIN_PROTOCOL2 0x0020 #define FIDO_DEV_UV_SET 0x0040 #define FIDO_DEV_UV_UNSET 0x0080 #define FIDO_DEV_TOKEN_PERMS 0x0100 #define FIDO_DEV_WINHELLO 0x0200 #define FIDO_DEV_CREDMAN_PRE 0x0400 #define FIDO_DEV_BIO_SET 0x0800 #define FIDO_DEV_BIO_UNSET 0x1000 /* miscellanea */ #define FIDO_DUMMY_CLIENTDATA "" #define FIDO_DUMMY_RP_ID "localhost" #define FIDO_DUMMY_USER_NAME "dummy" #define FIDO_DUMMY_USER_ID 1 #define FIDO_WINHELLO_PATH "windows://hello" #define FIDO_NFC_PREFIX "nfc:" #define FIDO_PCSC_PREFIX "pcsc:" #ifdef __cplusplus } /* extern "C" */ #endif /* __cplusplus */ #endif /* !_EXTERN_H */