| /* |
| * Copyright (c) 2017 Christian Huitema <huitema@huitema.net> |
| * |
| * Permission to use, copy, modify, and distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef PTLS_ASN1_H |
| #define PTLS_ASN1_H |
| |
| // #include "picotls/minicrypto.h" |
| |
| /* |
| * The ASN.1 functions take a "log context" parameter of type ptls_minicrypto_log_ctx_t. |
| * |
| * The log function in that code can be instantiated for example as: |
| * |
| * void log_printf(void * ctx, const char * format, ...) |
| * { |
| * va_list argptr; |
| * va_start(argptr, format); |
| * vfprintf(stderr, format, argptr); |
| * } |
| * |
| * Using definitions from <stdio.h> and <stdarg.h> |
| */ |
| |
| typedef struct st_ptls_minicrypto_log_ctx_t { |
| void *ctx; |
| void (*fn)(void *ctx, const char *format, ...); |
| } ptls_minicrypto_log_ctx_t; |
| |
| size_t ptls_asn1_error_message(char const *error_label, size_t bytes_max, size_t byte_index, int level, |
| ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| void ptls_asn1_dump_content(const uint8_t *bytes, size_t bytes_max, size_t byte_index, ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| size_t ptls_asn1_read_type(const uint8_t *bytes, size_t bytes_max, int *structure_bit, int *type_class, uint32_t *type_number, |
| int *decode_error, int level, ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| void ptls_asn1_print_type(int type_class, uint32_t type_number, int level, ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| size_t ptls_asn1_read_length(const uint8_t *bytes, size_t bytes_max, size_t byte_index, uint32_t *length, int *indefinite_length, |
| size_t *last_byte, int *decode_error, int level, ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| size_t ptls_asn1_get_expected_type_and_length(const uint8_t *bytes, size_t bytes_max, size_t byte_index, uint8_t expected_type, |
| uint32_t *length, int *indefinite_length, size_t *last_byte, int *decode_error, |
| ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| size_t ptls_asn1_validation_recursive(const uint8_t *bytes, size_t bytes_max, int *decode_error, int level, |
| ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| int ptls_asn1_validation(const uint8_t *bytes, size_t length, ptls_minicrypto_log_ctx_t *log_ctx); |
| |
| #endif |