projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| fe8ab488 A |
1 | /* |
| 2 | * ccasn1.h | |
| 3 | * corecrypto | |
| 4 | * | |
| 3e170ce0 A |
5 | * Created on 11/16/2010 |
| 6 | * | |
| 7 | * Copyright (c) 2010,2011,2012,2015 Apple Inc. All rights reserved. | |
| fe8ab488 A |
8 | * |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _CORECRYPTO_CCASN1_H_ | |
| 12 | #define _CORECRYPTO_CCASN1_H_ | |
| 13 | ||
| 14 | #include <corecrypto/cc.h> | |
| 15 | #include <stdbool.h> | |
| 16 | #include <string.h> | |
| 17 | ||
| 18 | /* ASN.1 types for on the fly ASN.1 BER/DER encoding/decoding. Don't use | |
| 19 | these with the ccder interface, use the CCDER_ types instead. */ | |
| 20 | enum { | |
| 21 | CCASN1_EOL = 0x00, | |
| 22 | CCASN1_BOOLEAN = 0x01, | |
| 23 | CCASN1_INTEGER = 0x02, | |
| 24 | CCASN1_BIT_STRING = 0x03, | |
| 25 | CCASN1_OCTET_STRING = 0x04, | |
| 26 | CCASN1_NULL = 0x05, | |
| 27 | CCASN1_OBJECT_IDENTIFIER = 0x06, | |
| 28 | CCASN1_OBJECT_DESCRIPTOR = 0x07, | |
| 29 | /* External or instance-of 0x08 */ | |
| 30 | CCASN1_REAL = 0x09, | |
| 31 | CCASN1_ENUMERATED = 0x0a, | |
| 32 | CCASN1_EMBEDDED_PDV = 0x0b, | |
| 33 | CCASN1_UTF8_STRING = 0x0c, | |
| 34 | /* 0x0d */ | |
| 35 | /* 0x0e */ | |
| 36 | /* 0x0f */ | |
| 37 | CCASN1_SEQUENCE = 0x10, | |
| 38 | CCASN1_SET = 0x11, | |
| 39 | CCASN1_NUMERIC_STRING = 0x12, | |
| 40 | CCASN1_PRINTABLE_STRING = 0x13, | |
| 41 | CCASN1_T61_STRING = 0x14, | |
| 42 | CCASN1_VIDEOTEX_STRING = 0x15, | |
| 43 | CCASN1_IA5_STRING = 0x16, | |
| 44 | CCASN1_UTC_TIME = 0x17, | |
| 45 | CCASN1_GENERALIZED_TIME = 0x18, | |
| 46 | CCASN1_GRAPHIC_STRING = 0x19, | |
| 47 | CCASN1_VISIBLE_STRING = 0x1a, | |
| 48 | CCASN1_GENERAL_STRING = 0x1b, | |
| 49 | CCASN1_UNIVERSAL_STRING = 0x1c, | |
| 50 | /* 0x1d */ | |
| 51 | CCASN1_BMP_STRING = 0x1e, | |
| 52 | CCASN1_HIGH_TAG_NUMBER = 0x1f, | |
| 53 | CCASN1_TELETEX_STRING = CCASN1_T61_STRING, | |
| 54 | ||
| 55 | CCASN1_TAG_MASK = 0xff, | |
| 56 | CCASN1_TAGNUM_MASK = 0x1f, | |
| 57 | ||
| 58 | CCASN1_METHOD_MASK = 0x20, | |
| 59 | CCASN1_PRIMITIVE = 0x00, | |
| 60 | CCASN1_CONSTRUCTED = 0x20, | |
| 61 | ||
| 62 | CCASN1_CLASS_MASK = 0xc0, | |
| 63 | CCASN1_UNIVERSAL = 0x00, | |
| 64 | CCASN1_APPLICATION = 0x40, | |
| 65 | CCASN1_CONTEXT_SPECIFIC = 0x80, | |
| 66 | CCASN1_PRIVATE = 0xc0, | |
| 67 | ||
| 68 | CCASN1_CONSTRUCTED_SET = CCASN1_SET | CCASN1_CONSTRUCTED, | |
| 69 | CCASN1_CONSTRUCTED_SEQUENCE = CCASN1_SEQUENCE | CCASN1_CONSTRUCTED, | |
| fe8ab488 A |
70 | }; |
| 71 | ||
| 72 | typedef union { | |
| 73 | const unsigned char *oid; | |
| 74 | } ccoid_t __attribute__((transparent_union)); | |
| 75 | ||
| 76 | /* Returns *der iff *der points to a DER encoded oid that fits within *der_len. */ | |
| 77 | ccoid_t ccoid_for_der(size_t *der_len, const uint8_t **der); | |
| 78 | ||
| 79 | /* Returns the size of an oid including it's tag and length. */ | |
| 80 | CC_INLINE CC_PURE CC_NONNULL_TU((1)) | |
| 81 | size_t ccoid_size(ccoid_t oid) { | |
| 82 | return 2 + oid.oid[1]; | |
| 83 | } | |
| 84 | ||
| 85 | CC_INLINE CC_PURE CC_NONNULL_TU((1)) CC_NONNULL_TU((2)) | |
| 86 | bool ccoid_equal(ccoid_t oid1, ccoid_t oid2) { | |
| 87 | return(ccoid_size(oid1) == ccoid_size(oid2) && memcmp(oid1.oid, oid2.oid, ccoid_size(oid1))== 0); | |
| 88 | } | |
| 89 | ||
| 90 | extern const unsigned char *ccsha1_oid; | |
| 91 | ||
| 92 | #endif /* _CORECRYPTO_CCASN1_H_ */ |