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Diffstat (limited to 'third_party/heimdal/lib/asn1/asn1-template.h')
| -rw-r--r-- | third_party/heimdal/lib/asn1/asn1-template.h | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/asn1/asn1-template.h b/third_party/heimdal/lib/asn1/asn1-template.h new file mode 100644 index 0000000..07c4461 --- /dev/null +++ b/third_party/heimdal/lib/asn1/asn1-template.h @@ -0,0 +1,305 @@ +/* + * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Portions Copyright (c) 2009 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* asn1 templates */ + +#ifndef __TEMPLATE_H__ +#define __TEMPLATE_H__ + +/* + * TBD: + * + * - For OER also encode number of optional/default/extension elements into + * header entry's ptr field, not just the number of entries that follow it. + * + * - For JER we'll need to encode encoding options (encode as array, encode as + * object, etc.) + * + * - For open types we'll need to be able to indicate what encoding rules the + * type uses. + * + * - We have too many bits for tags (20) and probably not enough for ops (4 + * bits, and we've used all but one). + */ + +/* header: + * HF flags if not a BIT STRING type + * HBF flags if a BIT STRING type + * + * ptr is count of elements + * offset is size of struct + */ + +/* tag: + * 0..20 tag + * 21 type + * 22..23 class + * 24..27 flags + * 28..31 op + * + * ptr points to template for tagged type + * offset is offset of struct field + */ + +/* parse: + * 0..11 type + * 12..23 unused + * 24..27 flags + * 28..31 op + * + * ptr is NULL + * offset is ... + */ + +/* defval: (next template entry is defaulted) + * + * DV flags (ptr is or points to defval) + * + * ptr is default value or pointer to default value + * offset is all ones + */ + +/* name: first one is the name of the SET/SEQUENCE/CHOICE type + * subsequent ones are the name of the nth field + * + * 0..23 unused + * 24..27 flags A1_NM_* + * 28..31 op + * + * ptr is const char * pointer to the name as C string + * offset is all zeros + */ + +/* objset: + * 0..9 open type ID entry index + * 10..19 open type entry index + * 20..23 unused + * 24..27 flags A1_OS_* + * 28..31 op + * + * ptr points to object set template + * offset is the offset of the choice struct + */ + +/* opentypeid: offset is zero + * ptr points to value if it is not an integer + * ptr is the value if it is an integer + * 0..23 unused + * 24..27 flags A1_OTI_* + * 28..31 op + */ + +/* opentype: offset is sizeof C type for this open type choice + * ptr points to template for type choice + * 0..23 unused + * 24..27 flags + * 28..31 op + */ + +#define A1_OP_MASK (0xf0000000) +#define A1_OP_TYPE (0x10000000) /* templated type */ +#define A1_OP_TYPE_EXTERN (0x20000000) /* templated type (imported) */ +#define A1_OP_TAG (0x30000000) /* a tag */ +#define A1_OP_PARSE (0x40000000) /* primitive type */ +#define A1_OP_SEQOF (0x50000000) /* sequence of */ +#define A1_OP_SETOF (0x60000000) /* set of */ +#define A1_OP_BMEMBER (0x70000000) /* BIT STRING member */ +#define A1_OP_CHOICE (0x80000000) /* CHOICE */ +#define A1_OP_DEFVAL (0x90000000) /* def. value */ +#define A1_OP_OPENTYPE_OBJSET (0xa0000000) /* object set for open type */ +#define A1_OP_OPENTYPE_ID (0xb0000000) /* open type id field */ +#define A1_OP_OPENTYPE (0xc0000000) /* open type field */ +#define A1_OP_NAME (0xd0000000) /* symbol */ +#define A1_OP_TYPE_DECORATE (0xe0000000) /* decoration w/ templated type */ +#define A1_OP_TYPE_DECORATE_EXTERN (0xf0000000) /* decoration w/ some C type */ + /* 0x00.. is still free */ + +#define A1_FLAG_MASK (0x0f000000) +#define A1_FLAG_OPTIONAL (0x01000000) +#define A1_FLAG_IMPLICIT (0x02000000) +#define A1_FLAG_DEFAULT (0x04000000) + +#define A1_TAG_T(CLASS,TYPE,TAG) ((A1_OP_TAG) | (((CLASS) << 22) | ((TYPE) << 21) | (TAG))) +#define A1_TAG_CLASS(x) (((x) >> 22) & 0x3) +#define A1_TAG_TYPE(x) (((x) >> 21) & 0x1) +#define A1_TAG_TAG(x) ((x) & 0x1fffff) + +#define A1_TAG_LEN(t) ((uintptr_t)(t)->ptr) +#define A1_HEADER_LEN(t) ((uintptr_t)(t)->ptr) + +#define A1_PARSE_T(type) ((A1_OP_PARSE) | (type)) +#define A1_PARSE_TYPE_MASK 0xfff +#define A1_PARSE_TYPE(x) (A1_PARSE_TYPE_MASK & (x)) + +#define A1_PF_INDEFINTE 0x1 +#define A1_PF_ALLOW_BER 0x2 + +#define A1_HF_PRESERVE 0x1 +#define A1_HF_ELLIPSIS 0x2 + +#define A1_HBF_RFC1510 0x1 + +#define A1_DV_BOOLEAN 0x01 +#define A1_DV_INTEGER 0x02 +#define A1_DV_INTEGER32 0x04 +#define A1_DV_INTEGER64 0x08 +#define A1_DV_UTF8STRING 0x10 + +#define A1_OS_IS_SORTED (0x01000000) +#define A1_OS_OT_IS_ARRAY (0x02000000) +#define A1_OTI_IS_INTEGER (0x04000000) + + +struct asn1_template { + uint32_t tt; + uint32_t offset; + const void *ptr; +}; + +typedef int (ASN1CALL *asn1_type_decode)(const unsigned char *, size_t, void *, size_t *); +typedef int (ASN1CALL *asn1_type_encode)(unsigned char *, size_t, const void *, size_t *); +typedef size_t (ASN1CALL *asn1_type_length)(const void *); +typedef void (ASN1CALL *asn1_type_release)(void *); +typedef int (ASN1CALL *asn1_type_copy)(const void *, void *); +typedef char * (ASN1CALL *asn1_type_print)(const void *, int); + +struct asn1_type_func { + asn1_type_encode encode; + asn1_type_decode decode; + asn1_type_length length; + asn1_type_copy copy; + asn1_type_release release; + asn1_type_print print; + size_t size; +}; + +struct template_of { + unsigned int len; + void *val; +}; + +enum template_types { + A1T_IMEMBER = 0, + A1T_HEIM_INTEGER, + A1T_INTEGER, + A1T_INTEGER64, + A1T_UNSIGNED, + A1T_UNSIGNED64, + A1T_GENERAL_STRING, + A1T_OCTET_STRING, + A1T_OCTET_STRING_BER, + A1T_IA5_STRING, + A1T_BMP_STRING, + A1T_UNIVERSAL_STRING, + A1T_PRINTABLE_STRING, + A1T_VISIBLE_STRING, + A1T_UTF8_STRING, + A1T_GENERALIZED_TIME, + A1T_UTC_TIME, + A1T_HEIM_BIT_STRING, + A1T_BOOLEAN, + A1T_OID, + A1T_TELETEX_STRING, + A1T_NUM_ENTRY +}; + +extern struct asn1_type_func asn1_template_prim[A1T_NUM_ENTRY]; + +#define ABORT_ON_ERROR() abort() + +#define DPOC(data,offset) ((const void *)(((const unsigned char *)data) + offset)) +#define DPO(data,offset) ((void *)(((unsigned char *)data) + offset)) + +/* + * These functions are needed by the generated template stubs and are + * really internal functions. Since they are part of der-private.h + * that contains extra prototypes that really a private we included a + * copy here. + */ + +int +_asn1_copy_top ( + const struct asn1_template * /*t*/, + const void * /*from*/, + void * /*to*/); + +void +_asn1_free_top(const struct asn1_template *, void *); + +char * +_asn1_print_top(const struct asn1_template *, int, const void *); + +int +_asn1_decode_top ( + const struct asn1_template * /*t*/, + unsigned /*flags*/, + const unsigned char * /*p*/, + size_t /*len*/, + void * /*data*/, + size_t * /*size*/); + +int +_asn1_encode ( + const struct asn1_template * /*t*/, + unsigned char * /*p*/, + size_t /*len*/, + const void * /*data*/, + size_t * /*size*/); + +int +_asn1_encode_fuzzer ( + const struct asn1_template * /*t*/, + unsigned char * /*p*/, + size_t /*len*/, + const void * /*data*/, + size_t * /*size*/); + +void +_asn1_free ( + const struct asn1_template * /*t*/, + void * /*data*/); + +size_t +_asn1_length ( + const struct asn1_template * /*t*/, + const void * /*data*/); + +size_t +_asn1_length_fuzzer ( + const struct asn1_template * /*t*/, + const void * /*data*/); + + +#endif |