| 1 | /*
|
|---|
| 2 | Unix SMB/CIFS implementation.
|
|---|
| 3 | simple ASN1 code
|
|---|
| 4 | Copyright (C) Andrew Tridgell 2001
|
|---|
| 5 |
|
|---|
| 6 | This program is free software; you can redistribute it and/or modify
|
|---|
| 7 | it under the terms of the GNU General Public License as published by
|
|---|
| 8 | the Free Software Foundation; either version 3 of the License, or
|
|---|
| 9 | (at your option) any later version.
|
|---|
| 10 |
|
|---|
| 11 | This program is distributed in the hope that it will be useful,
|
|---|
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 14 | GNU General Public License for more details.
|
|---|
| 15 |
|
|---|
| 16 | You should have received a copy of the GNU General Public License
|
|---|
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|---|
| 18 | */
|
|---|
| 19 |
|
|---|
| 20 | #ifndef _ASN_1_H
|
|---|
| 21 | #define _ASN_1_H
|
|---|
| 22 |
|
|---|
| 23 | struct nesting {
|
|---|
| 24 | off_t start;
|
|---|
| 25 | size_t taglen; /* for parsing */
|
|---|
| 26 | struct nesting *next;
|
|---|
| 27 | };
|
|---|
| 28 |
|
|---|
| 29 | struct asn1_data {
|
|---|
| 30 | uint8_t *data;
|
|---|
| 31 | size_t length;
|
|---|
| 32 | off_t ofs;
|
|---|
| 33 | struct nesting *nesting;
|
|---|
| 34 | bool has_error;
|
|---|
| 35 | };
|
|---|
| 36 |
|
|---|
| 37 | typedef struct asn1_data ASN1_DATA;
|
|---|
| 38 |
|
|---|
| 39 | #define ASN1_APPLICATION(x) ((x)+0x60)
|
|---|
| 40 | #define ASN1_APPLICATION_SIMPLE(x) ((x)+0x40)
|
|---|
| 41 | #define ASN1_SEQUENCE(x) ((x)+0x30)
|
|---|
| 42 | #define ASN1_CONTEXT(x) ((x)+0xa0)
|
|---|
| 43 | #define ASN1_CONTEXT_SIMPLE(x) ((x)+0x80)
|
|---|
| 44 | #define ASN1_GENERAL_STRING 0x1b
|
|---|
| 45 | #define ASN1_OCTET_STRING 0x4
|
|---|
| 46 | #define ASN1_OID 0x6
|
|---|
| 47 | #define ASN1_BOOLEAN 0x1
|
|---|
| 48 | #define ASN1_INTEGER 0x2
|
|---|
| 49 | #define ASN1_BIT_STRING 0x3
|
|---|
| 50 | #define ASN1_ENUMERATED 0xa
|
|---|
| 51 | #define ASN1_SET 0x31
|
|---|
| 52 |
|
|---|
| 53 | #define ASN1_MAX_OIDS 20
|
|---|
| 54 |
|
|---|
| 55 | struct asn1_data *asn1_init(TALLOC_CTX *mem_ctx);
|
|---|
| 56 | void asn1_free(struct asn1_data *data);
|
|---|
| 57 | bool asn1_write(struct asn1_data *data, const void *p, int len);
|
|---|
| 58 | bool asn1_write_uint8(struct asn1_data *data, uint8_t v);
|
|---|
| 59 | bool asn1_push_tag(struct asn1_data *data, uint8_t tag);
|
|---|
| 60 | bool asn1_pop_tag(struct asn1_data *data);
|
|---|
| 61 | bool asn1_write_implicit_Integer(struct asn1_data *data, int i);
|
|---|
| 62 | bool asn1_write_Integer(struct asn1_data *data, int i);
|
|---|
| 63 | bool asn1_write_BitString(struct asn1_data *data, const void *p, size_t length, uint8_t padding);
|
|---|
| 64 | bool ber_write_OID_String(DATA_BLOB *blob, const char *OID);
|
|---|
| 65 | bool asn1_write_OID(struct asn1_data *data, const char *OID);
|
|---|
| 66 | bool asn1_write_OctetString(struct asn1_data *data, const void *p, size_t length);
|
|---|
| 67 | bool asn1_write_LDAPString(struct asn1_data *data, const char *s);
|
|---|
| 68 | bool asn1_write_DATA_BLOB_LDAPString(struct asn1_data *data, const DATA_BLOB *s);
|
|---|
| 69 | bool asn1_write_GeneralString(struct asn1_data *data, const char *s);
|
|---|
| 70 | bool asn1_write_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *blob);
|
|---|
| 71 | bool asn1_write_BOOLEAN(struct asn1_data *data, bool v);
|
|---|
| 72 | bool asn1_read_BOOLEAN(struct asn1_data *data, bool *v);
|
|---|
| 73 | bool asn1_check_BOOLEAN(struct asn1_data *data, bool v);
|
|---|
| 74 | bool asn1_write_BOOLEAN_context(struct asn1_data *data, bool v, int context);
|
|---|
| 75 | bool asn1_read_BOOLEAN_context(struct asn1_data *data, bool *v, int context);
|
|---|
| 76 | bool asn1_load(struct asn1_data *data, DATA_BLOB blob);
|
|---|
| 77 | bool asn1_peek(struct asn1_data *data, void *p, int len);
|
|---|
| 78 | bool asn1_read(struct asn1_data *data, void *p, int len);
|
|---|
| 79 | bool asn1_read_uint8(struct asn1_data *data, uint8_t *v);
|
|---|
| 80 | bool asn1_peek_uint8(struct asn1_data *data, uint8_t *v);
|
|---|
| 81 | bool asn1_peek_tag(struct asn1_data *data, uint8_t tag);
|
|---|
| 82 | bool asn1_start_tag(struct asn1_data *data, uint8_t tag);
|
|---|
| 83 | bool asn1_end_tag(struct asn1_data *data);
|
|---|
| 84 | int asn1_tag_remaining(struct asn1_data *data);
|
|---|
| 85 | bool ber_read_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB blob, const char **OID);
|
|---|
| 86 | bool asn1_read_OID(struct asn1_data *data, TALLOC_CTX *mem_ctx, const char **OID);
|
|---|
| 87 | bool asn1_check_OID(struct asn1_data *data, const char *OID);
|
|---|
| 88 | bool asn1_read_LDAPString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s);
|
|---|
| 89 | bool asn1_read_GeneralString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s);
|
|---|
| 90 | bool asn1_read_OctetString(struct asn1_data *data, TALLOC_CTX *mem_ctx, DATA_BLOB *blob);
|
|---|
| 91 | bool asn1_read_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *blob);
|
|---|
| 92 | bool asn1_read_implicit_Integer(struct asn1_data *data, int *i);
|
|---|
| 93 | bool asn1_read_Integer(struct asn1_data *data, int *i);
|
|---|
| 94 | bool asn1_read_BitString(struct asn1_data *data, TALLOC_CTX *mem_ctx, DATA_BLOB *blob, uint8_t *padding);
|
|---|
| 95 | bool asn1_read_enumerated(struct asn1_data *data, int *v);
|
|---|
| 96 | bool asn1_check_enumerated(struct asn1_data *data, int v);
|
|---|
| 97 | bool asn1_write_enumerated(struct asn1_data *data, uint8_t v);
|
|---|
| 98 | bool asn1_blob(const struct asn1_data *asn1, DATA_BLOB *blob);
|
|---|
| 99 | void asn1_load_nocopy(struct asn1_data *data, uint8_t *buf, size_t len);
|
|---|
| 100 | NTSTATUS asn1_full_tag(DATA_BLOB blob, uint8_t tag, size_t *packet_size);
|
|---|
| 101 |
|
|---|
| 102 | #endif /* _ASN_1_H */
|
|---|
