1 files changed, 132 insertions, 0 deletions

diff --git a/src/extern.h b/src/extern.h
new file mode 100644
index 0000000..c35af58
--- /dev/null
+++ b/src/extern.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2018 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.
+ */
+
+#ifndef _EXTERN_H
+#define _EXTERN_H
+
+/* aes256 */
+int aes256_cbc_dec(const fido_blob_t *, const fido_blob_t *, fido_blob_t *);
+int aes256_cbc_enc(const fido_blob_t *, const fido_blob_t *, fido_blob_t *);
+
+/* cbor encoding functions */
+cbor_item_t *cbor_flatten_vector(cbor_item_t **, size_t);
+cbor_item_t *cbor_encode_assert_options(fido_opt_t, fido_opt_t);
+cbor_item_t *cbor_encode_change_pin_auth(const fido_blob_t *,
+    const fido_blob_t *, const fido_blob_t *);
+cbor_item_t *cbor_encode_extensions(int);
+cbor_item_t *cbor_encode_hmac_secret_param(const fido_blob_t *,
+    const es256_pk_t *, const fido_blob_t *);
+cbor_item_t *cbor_encode_options(fido_opt_t, fido_opt_t);
+cbor_item_t *cbor_encode_pin_auth(const fido_blob_t *, const fido_blob_t *);
+cbor_item_t *cbor_encode_pin_enc(const fido_blob_t *, const fido_blob_t *);
+cbor_item_t *cbor_encode_pin_hash_enc(const fido_blob_t *, const fido_blob_t *);
+cbor_item_t *cbor_encode_pin_opt(void);
+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_set_pin_auth(const fido_blob_t *, const fido_blob_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_cred_authdata(const cbor_item_t *, int, fido_blob_t *,
+    fido_authdata_t *, fido_attcred_t *, int *);
+int cbor_decode_assert_authdata(const cbor_item_t *, fido_blob_t *,
+    fido_authdata_t *, int *, fido_blob_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 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_pin_params(fido_dev_t *, const fido_blob_t *, const es256_pk_t *,
+    const fido_blob_t *,const char *, cbor_item_t **, cbor_item_t **);
+void cbor_vector_free(cbor_item_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);
+
+/* 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);
+
+/* 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)
+#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);
+#else
+void fido_log_init(void);
+void fido_log_debug(const char *, ...);
+void fido_log_xxd(const void *, size_t);
+#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);
+
+/* unexposed fido ops */
+int fido_dev_authkey(fido_dev_t *, es256_pk_t *);
+int fido_dev_get_pin_token(fido_dev_t *, const char *, const fido_blob_t *,
+    const es256_pk_t *, fido_blob_t *);
+int fido_do_ecdh(fido_dev_t *, es256_pk_t **, fido_blob_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 *);
+int fido_check_rp_id(const char *, const unsigned char *);
+int fido_check_flags(uint8_t, fido_opt_t, fido_opt_t);
+
+/* crypto */
+int fido_verify_sig_es256(const fido_blob_t *, const es256_pk_t *,
+    const fido_blob_t *);
+int fido_verify_sig_rs256(const fido_blob_t *, const rs256_pk_t *,
+    const fido_blob_t *);
+int fido_verify_sig_eddsa(const fido_blob_t *, const eddsa_pk_t *,
+    const fido_blob_t *);
+
+#endif /* !_EXTERN_H */