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)
49 #define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060
50 #define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062
51 #define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064
52 #define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066
53 #define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068
54 #define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A
55 #define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C
70 #define MBEDTLS_ASN1_BOOLEAN 0x01
71 #define MBEDTLS_ASN1_INTEGER 0x02
72 #define MBEDTLS_ASN1_BIT_STRING 0x03
73 #define MBEDTLS_ASN1_OCTET_STRING 0x04
74 #define MBEDTLS_ASN1_NULL 0x05
75 #define MBEDTLS_ASN1_OID 0x06
76 #define MBEDTLS_ASN1_ENUMERATED 0x0A
77 #define MBEDTLS_ASN1_UTF8_STRING 0x0C
78 #define MBEDTLS_ASN1_SEQUENCE 0x10
79 #define MBEDTLS_ASN1_SET 0x11
80 #define MBEDTLS_ASN1_PRINTABLE_STRING 0x13
81 #define MBEDTLS_ASN1_T61_STRING 0x14
82 #define MBEDTLS_ASN1_IA5_STRING 0x16
83 #define MBEDTLS_ASN1_UTC_TIME 0x17
84 #define MBEDTLS_ASN1_GENERALIZED_TIME 0x18
85 #define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C
86 #define MBEDTLS_ASN1_BMP_STRING 0x1E
87 #define MBEDTLS_ASN1_PRIMITIVE 0x00
88 #define MBEDTLS_ASN1_CONSTRUCTED 0x20
89 #define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80
93 #define MBEDTLS_ASN1_IS_STRING_TAG( tag ) \
94 ( ( tag ) < 32u && ( \
95 ( ( 1u << ( tag ) ) & ( ( 1u << MBEDTLS_ASN1_BMP_STRING ) | \
96 ( 1u << MBEDTLS_ASN1_UTF8_STRING ) | \
97 ( 1u << MBEDTLS_ASN1_T61_STRING ) | \
98 ( 1u << MBEDTLS_ASN1_IA5_STRING ) | \
99 ( 1u << MBEDTLS_ASN1_UNIVERSAL_STRING ) | \
100 ( 1u << MBEDTLS_ASN1_PRINTABLE_STRING ) | \
101 ( 1u << MBEDTLS_ASN1_BIT_STRING ) ) ) != 0 ) )
113 #define MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0
114 #define MBEDTLS_ASN1_TAG_PC_MASK 0x20
115 #define MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F
121 #define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1)
129 #define MBEDTLS_OID_CMP(oid_str, oid_buf) \
130 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) || \
131 memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
133 #define MBEDTLS_OID_CMP_RAW(oid_str, oid_buf, oid_buf_len) \
134 ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf_len) ) || \
135 memcmp( (oid_str), (oid_buf), (oid_buf_len) ) != 0 )
209 const unsigned char *end,
234 const unsigned char *end,
235 size_t *len,
int tag );
253 const unsigned char *end,
274 const unsigned char *end,
295 const unsigned char *end,
337 const unsigned char *end,
388 const unsigned char *end,
501 const unsigned char *end,
502 unsigned char tag_must_mask,
unsigned char tag_must_val,
503 unsigned char tag_may_mask,
unsigned char tag_may_val,
504 int (*cb)(
void *ctx,
int tag,
505 unsigned char* start,
size_t len ),
508 #if defined(MBEDTLS_BIGNUM_C)
528 const unsigned char *end,
549 const unsigned char *end,
568 const unsigned char *end,
582 const char *
oid,
size_t len );
unsigned char unused_bits
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...
unsigned char next_merged
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_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...
Configuration options (set of defines)
void mbedtls_asn1_free_named_data(mbedtls_asn1_named_data *entry)
Free a mbedtls_asn1_named_data 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_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...
Multi-precision integer library.
struct mbedtls_asn1_bitstring mbedtls_asn1_bitstring
struct mbedtls_asn1_named_data mbedtls_asn1_named_data
void mbedtls_asn1_free_named_data_list(mbedtls_asn1_named_data **head)
Free all entries in a mbedtls_asn1_named_data list.
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...
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...
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...
struct mbedtls_asn1_buf mbedtls_asn1_buf
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...
struct mbedtls_asn1_sequence mbedtls_asn1_sequence
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...
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.
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...
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...
struct mbedtls_asn1_named_data * next
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...
struct mbedtls_asn1_sequence * next