1 /* 2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 3 * 2006. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #ifndef OPENSSL_HEADER_ASN1_ASN1_LOCL_H 60 #define OPENSSL_HEADER_ASN1_ASN1_LOCL_H 61 62 #include <time.h> 63 64 #include <openssl/asn1.h> 65 66 #if defined(__cplusplus) 67 extern "C" { 68 #endif 69 70 71 /* Wrapper functions for time functions. */ 72 73 /* OPENSSL_gmtime wraps |gmtime_r|. See the manual page for that function. */ 74 struct tm *OPENSSL_gmtime(const time_t *time, struct tm *result); 75 76 /* OPENSSL_gmtime_adj updates |tm| by adding |offset_day| days and |offset_sec| 77 * seconds. */ 78 int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec); 79 80 /* OPENSSL_gmtime_diff calculates the difference between |from| and |to| and 81 * outputs the difference as a number of days and seconds in |*out_days| and 82 * |*out_secs|. */ 83 int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from, 84 const struct tm *to); 85 86 87 /* Internal ASN1 structures and functions: not for application use */ 88 89 /* These are used internally in the ASN1_OBJECT to keep track of 90 * whether the names and data need to be free()ed */ 91 #define ASN1_OBJECT_FLAG_DYNAMIC 0x01 /* internal use */ 92 #define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04 /* internal use */ 93 #define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08 /* internal use */ 94 95 /* An asn1_object_st (aka |ASN1_OBJECT|) represents an ASN.1 OBJECT IDENTIFIER. 96 * Note: Mutating an |ASN1_OBJECT| is only permitted when initializing it. The 97 * library maintains a table of static |ASN1_OBJECT|s, which may be referenced 98 * by non-const |ASN1_OBJECT| pointers. Code which receives an |ASN1_OBJECT| 99 * pointer externally must assume it is immutable, even if the pointer is not 100 * const. */ 101 struct asn1_object_st { 102 const char *sn, *ln; 103 int nid; 104 int length; 105 const unsigned char *data; /* data remains const after init */ 106 int flags; /* Should we free this one */ 107 }; 108 109 int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d); 110 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d); 111 112 void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it, 113 int combine); 114 115 int UTF8_getc(const unsigned char *str, int len, uint32_t *val); 116 int UTF8_putc(unsigned char *str, int len, uint32_t value); 117 118 int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it); 119 void ASN1_item_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it); 120 121 void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); 122 int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, 123 const ASN1_ITEM *it, int tag, int aclass, char opt, 124 ASN1_TLC *ctx); 125 126 int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out, 127 const ASN1_ITEM *it, int tag, int aclass); 128 void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it); 129 130 int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it); 131 int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it); 132 133 ASN1_VALUE **asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); 134 135 const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, 136 int nullerr); 137 138 void asn1_refcount_set_one(ASN1_VALUE **pval, const ASN1_ITEM *it); 139 int asn1_refcount_dec_and_test_zero(ASN1_VALUE **pval, const ASN1_ITEM *it); 140 141 void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it); 142 void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it); 143 int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, 144 const ASN1_ITEM *it); 145 int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen, 146 const ASN1_ITEM *it); 147 148 /* asn1_type_value_as_pointer returns |a|'s value in pointer form. This is 149 * usually the value object but, for BOOLEAN values, is 0 or 0xff cast to 150 * a pointer. */ 151 const void *asn1_type_value_as_pointer(const ASN1_TYPE *a); 152 153 /* asn1_is_printable returns one if |value| is a valid Unicode codepoint for an 154 * ASN.1 PrintableString, and zero otherwise. */ 155 int asn1_is_printable(uint32_t value); 156 157 158 #if defined(__cplusplus) 159 } /* extern C */ 160 #endif 161 162 #endif /* OPENSSL_HEADER_ASN1_ASN1_LOCL_H */ 163