22 #ifndef MBEDTLS_ASN1_H
23 #define MBEDTLS_ASN1_H
25 #if !defined(MBEDTLS_CONFIG_FILE)
28 #include MBEDTLS_CONFIG_FILE
33 #if defined(MBEDTLS_BIGNUM_C)
50 #define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060
52 #define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062
54 #define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064
56 #define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066
58 #define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068
60 #define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A
62 #define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C
77 #define MBEDTLS_ASN1_BOOLEAN 0x01
78 #define MBEDTLS_ASN1_INTEGER 0x02
79 #define MBEDTLS_ASN1_BIT_STRING 0x03
80 #define MBEDTLS_ASN1_OCTET_STRING 0x04
81 #define MBEDTLS_ASN1_NULL 0x05
82 #define MBEDTLS_ASN1_OID 0x06
83 #define MBEDTLS_ASN1_ENUMERATED 0x0A
84 #define MBEDTLS_ASN1_UTF8_STRING 0x0C
85 #define MBEDTLS_ASN1_SEQUENCE 0x10
86 #define MBEDTLS_ASN1_SET 0x11
87 #define MBEDTLS_ASN1_PRINTABLE_STRING 0x13
88 #define MBEDTLS_ASN1_T61_STRING 0x14
89 #define MBEDTLS_ASN1_IA5_STRING 0x16
90 #define MBEDTLS_ASN1_UTC_TIME 0x17
91 #define MBEDTLS_ASN1_GENERALIZED_TIME 0x18
92 #define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C
93 #define MBEDTLS_ASN1_BMP_STRING 0x1E
94 #define MBEDTLS_ASN1_PRIMITIVE 0x00
95 #define MBEDTLS_ASN1_CONSTRUCTED 0x20
96 #define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80
100 #define MBEDTLS_ASN1_IS_STRING_TAG( tag ) \
101 ( ( tag ) < 32u && ( \
102 ( ( 1u << ( tag ) ) & ( ( 1u << MBEDTLS_ASN1_BMP_STRING ) | \
103 ( 1u << MBEDTLS_ASN1_UTF8_STRING ) | \
104 ( 1u << MBEDTLS_ASN1_T61_STRING ) | \
105 ( 1u << MBEDTLS_ASN1_IA5_STRING ) | \
106 ( 1u << MBEDTLS_ASN1_UNIVERSAL_STRING ) | \
107 ( 1u << MBEDTLS_ASN1_PRINTABLE_STRING ) | \
108 ( 1u << MBEDTLS_ASN1_BIT_STRING ) ) ) != 0 ) )
120 #define MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0
121 #define MBEDTLS_ASN1_TAG_PC_MASK 0x20
122 #define MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F
127 #define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1)
135 #define MBEDTLS_OID_CMP(oid_str, oid_buf) \
136 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) || \
137 memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
139 #define MBEDTLS_OID_CMP_RAW(oid_str, oid_buf, oid_buf_len) \
140 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf_len) ) || \
141 memcmp( (oid_str), (oid_buf), (oid_buf_len) ) != 0 )
215 const unsigned char *end,
240 const unsigned char *end,
241 size_t *len,
int tag );
259 const unsigned char *end,
280 const unsigned char *end,
301 const unsigned char *end,
343 const unsigned char *end,
394 const unsigned char *end,
507 const unsigned char *end,
508 unsigned char tag_must_mask,
unsigned char tag_must_val,
509 unsigned char tag_may_mask,
unsigned char tag_may_val,
510 int (*cb)(
void *ctx,
int tag,
511 unsigned char* start,
size_t len ),
514 #if defined(MBEDTLS_BIGNUM_C)
534 const unsigned char *end,
555 const unsigned char *end,
574 const unsigned char *end,
588 const char *
oid,
size_t len );
Multi-precision integer library.
Configuration options (set of defines)
int mbedtls_asn1_get_bitstring_null(unsigned char **p, const unsigned char *end, size_t *len)
Retrieve a bitstring ASN.1 tag without unused bits and its value. Updates the pointer to the beginnin...
void mbedtls_asn1_free_named_data(mbedtls_asn1_named_data *entry)
Free a mbedtls_asn1_named_data entry.
int mbedtls_asn1_get_mpi(unsigned char **p, const unsigned char *end, mbedtls_mpi *X)
Retrieve an integer ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
struct mbedtls_asn1_sequence mbedtls_asn1_sequence
struct mbedtls_asn1_bitstring mbedtls_asn1_bitstring
int mbedtls_asn1_get_enum(unsigned char **p, const unsigned char *end, int *val)
Retrieve an enumerated ASN.1 tag and its value. Updates the pointer to immediately behind the full ta...
struct mbedtls_asn1_named_data mbedtls_asn1_named_data
int mbedtls_asn1_get_int(unsigned char **p, const unsigned char *end, int *val)
Retrieve an integer ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
void mbedtls_asn1_sequence_free(mbedtls_asn1_sequence *seq)
Free a heap-allocated linked list presentation of an ASN.1 sequence, including the first element.
int mbedtls_asn1_get_sequence_of(unsigned char **p, const unsigned char *end, mbedtls_asn1_sequence *cur, int tag)
Parses and splits an ASN.1 "SEQUENCE OF <tag>". Updates the pointer to immediately behind the full se...
struct mbedtls_asn1_buf mbedtls_asn1_buf
int mbedtls_asn1_traverse_sequence_of(unsigned char **p, const unsigned char *end, unsigned char tag_must_mask, unsigned char tag_must_val, unsigned char tag_may_mask, unsigned char tag_may_val, int(*cb)(void *ctx, int tag, unsigned char *start, size_t len), void *ctx)
Traverse an ASN.1 SEQUENCE container and call a callback for each entry.
mbedtls_asn1_named_data * mbedtls_asn1_find_named_data(mbedtls_asn1_named_data *list, const char *oid, size_t len)
Find a specific named_data entry in a sequence or list based on the OID.
int mbedtls_asn1_get_len(unsigned char **p, const unsigned char *end, size_t *len)
Get the length of an ASN.1 element. Updates the pointer to immediately behind the length.
int mbedtls_asn1_get_alg_null(unsigned char **p, const unsigned char *end, mbedtls_asn1_buf *alg)
Retrieve an AlgorithmIdentifier ASN.1 sequence with NULL or no params. Updates the pointer to immedia...
int mbedtls_asn1_get_alg(unsigned char **p, const unsigned char *end, mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params)
Retrieve an AlgorithmIdentifier ASN.1 sequence. Updates the pointer to immediately behind the full Al...
int mbedtls_asn1_get_bitstring(unsigned char **p, const unsigned char *end, mbedtls_asn1_bitstring *bs)
Retrieve a bitstring ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
int mbedtls_asn1_get_tag(unsigned char **p, const unsigned char *end, size_t *len, int tag)
Get the tag and length of the element. Check for the requested tag. Updates the pointer to immediatel...
int mbedtls_asn1_get_bool(unsigned char **p, const unsigned char *end, int *val)
Retrieve a boolean ASN.1 tag and its value. Updates the pointer to immediately behind the full tag.
void mbedtls_asn1_free_named_data_list(mbedtls_asn1_named_data **head)
Free all entries in a mbedtls_asn1_named_data list.
unsigned char unused_bits
struct mbedtls_asn1_named_data * next
unsigned char next_merged
struct mbedtls_asn1_sequence * next