/* Unix SMB/CIFS implementation. simple ASN1 code Copyright (C) Andrew Tridgell 2001 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef _ASN_1_H #define _ASN_1_H struct nesting { off_t start; size_t taglen; /* for parsing */ struct nesting *next; }; struct asn1_data { uint8_t *data; size_t length; off_t ofs; struct nesting *nesting; bool has_error; }; typedef struct asn1_data ASN1_DATA; #define ASN1_APPLICATION(x) ((x)+0x60) #define ASN1_APPLICATION_SIMPLE(x) ((x)+0x40) #define ASN1_SEQUENCE(x) ((x)+0x30) #define ASN1_CONTEXT(x) ((x)+0xa0) #define ASN1_CONTEXT_SIMPLE(x) ((x)+0x80) #define ASN1_GENERAL_STRING 0x1b #define ASN1_OCTET_STRING 0x4 #define ASN1_OID 0x6 #define ASN1_BOOLEAN 0x1 #define ASN1_INTEGER 0x2 #define ASN1_BIT_STRING 0x3 #define ASN1_ENUMERATED 0xa #define ASN1_SET 0x31 #define ASN1_MAX_OIDS 20 struct asn1_data *asn1_init(TALLOC_CTX *mem_ctx); void asn1_free(struct asn1_data *data); bool asn1_write(struct asn1_data *data, const void *p, int len); bool asn1_write_uint8(struct asn1_data *data, uint8_t v); bool asn1_push_tag(struct asn1_data *data, uint8_t tag); bool asn1_pop_tag(struct asn1_data *data); bool asn1_write_implicit_Integer(struct asn1_data *data, int i); bool asn1_write_Integer(struct asn1_data *data, int i); bool asn1_write_BitString(struct asn1_data *data, const void *p, size_t length, uint8_t padding); bool ber_write_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, const char *OID); bool ber_write_partial_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, const char *partial_oid); bool asn1_write_OID(struct asn1_data *data, const char *OID); bool asn1_write_OctetString(struct asn1_data *data, const void *p, size_t length); bool asn1_write_LDAPString(struct asn1_data *data, const char *s); bool asn1_write_DATA_BLOB_LDAPString(struct asn1_data *data, const DATA_BLOB *s); bool asn1_write_GeneralString(struct asn1_data *data, const char *s); bool asn1_write_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *blob); bool asn1_write_BOOLEAN(struct asn1_data *data, bool v); bool asn1_read_BOOLEAN(struct asn1_data *data, bool *v); bool asn1_check_BOOLEAN(struct asn1_data *data, bool v); bool asn1_write_BOOLEAN_context(struct asn1_data *data, bool v, int context); bool asn1_read_BOOLEAN_context(struct asn1_data *data, bool *v, int context); bool asn1_load(struct asn1_data *data, DATA_BLOB blob); bool asn1_peek(struct asn1_data *data, void *p, int len); bool asn1_read(struct asn1_data *data, void *p, int len); bool asn1_read_uint8(struct asn1_data *data, uint8_t *v); bool asn1_peek_uint8(struct asn1_data *data, uint8_t *v); bool asn1_peek_tag_needed_size(struct asn1_data *data, uint8_t tag, size_t *size); bool asn1_peek_tag(struct asn1_data *data, uint8_t tag); bool asn1_start_tag(struct asn1_data *data, uint8_t tag); bool asn1_end_tag(struct asn1_data *data); int asn1_tag_remaining(struct asn1_data *data); bool ber_read_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB blob, char **OID); bool ber_read_partial_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB blob, char **partial_oid); bool asn1_read_OID(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **OID); bool asn1_check_OID(struct asn1_data *data, const char *OID); bool asn1_read_LDAPString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s); bool asn1_read_GeneralString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s); bool asn1_read_OctetString(struct asn1_data *data, TALLOC_CTX *mem_ctx, DATA_BLOB *blob); bool asn1_read_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *blob); bool asn1_read_implicit_Integer(struct asn1_data *data, int *i); bool asn1_read_Integer(struct asn1_data *data, int *i); bool asn1_read_BitString(struct asn1_data *data, TALLOC_CTX *mem_ctx, DATA_BLOB *blob, uint8_t *padding); bool asn1_read_enumerated(struct asn1_data *data, int *v); bool asn1_check_enumerated(struct asn1_data *data, int v); bool asn1_write_enumerated(struct asn1_data *data, uint8_t v); bool asn1_blob(const struct asn1_data *asn1, DATA_BLOB *blob); void asn1_load_nocopy(struct asn1_data *data, uint8_t *buf, size_t len); NTSTATUS asn1_full_tag(DATA_BLOB blob, uint8_t tag, size_t *packet_size); NTSTATUS asn1_peek_full_tag(DATA_BLOB blob, uint8_t tag, size_t *packet_size); #endif /* _ASN_1_H */