Harald Welte | d523a69 | 2015-08-30 23:11:19 +0200 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2005, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
| 5 | #ifndef _PER_DECODER_H_ |
| 6 | #define _PER_DECODER_H_ |
| 7 | |
| 8 | #include <asn_application.h> |
| 9 | #include <per_support.h> |
| 10 | |
| 11 | #ifdef __cplusplus |
| 12 | extern "C" { |
| 13 | #endif |
| 14 | |
| 15 | struct asn_TYPE_descriptor_s; /* Forward declaration */ |
| 16 | |
| 17 | /* |
| 18 | * Unaligned PER decoder of a "complete encoding" as per X.691#10.1. |
| 19 | * On success, this call always returns (.consumed >= 1), as per X.691#10.1.3. |
| 20 | */ |
| 21 | asn_dec_rval_t uper_decode_complete(struct asn_codec_ctx_s *opt_codec_ctx, |
| 22 | struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */ |
| 23 | void **struct_ptr, /* Pointer to a target structure's pointer */ |
| 24 | const void *buffer, /* Data to be decoded */ |
| 25 | size_t size /* Size of data buffer */ |
| 26 | ); |
| 27 | |
| 28 | /* |
| 29 | * Unaligned PER decoder of any ASN.1 type. May be invoked by the application. |
| 30 | * WARNING: This call returns the number of BITS read from the stream. Beware. |
| 31 | */ |
| 32 | asn_dec_rval_t uper_decode(struct asn_codec_ctx_s *opt_codec_ctx, |
| 33 | struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */ |
| 34 | void **struct_ptr, /* Pointer to a target structure's pointer */ |
| 35 | const void *buffer, /* Data to be decoded */ |
| 36 | size_t size, /* Size of data buffer */ |
| 37 | int skip_bits, /* Number of unused leading bits, 0..7 */ |
| 38 | int unused_bits /* Number of unused tailing bits, 0..7 */ |
| 39 | ); |
| 40 | |
| 41 | /* |
| 42 | * Aligned PER decoder of a "complete encoding" as per X.691#10.1. |
| 43 | * On success, this call always returns (.consumed >= 1), as per X.691#10.1.3. |
| 44 | */ |
| 45 | asn_dec_rval_t aper_decode_complete(struct asn_codec_ctx_s *opt_codec_ctx, |
| 46 | struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */ |
| 47 | void **struct_ptr, /* Pointer to a target structure's pointer */ |
| 48 | const void *buffer, /* Data to be decoded */ |
| 49 | size_t size /* Size of data buffer */ |
| 50 | ); |
| 51 | |
| 52 | /* |
| 53 | * Aligned PER decoder of any ASN.1 type. May be invoked by the application. |
| 54 | * WARNING: This call returns the number of BITS read from the stream. Beware. |
| 55 | */ |
| 56 | asn_dec_rval_t aper_decode(struct asn_codec_ctx_s *opt_codec_ctx, |
| 57 | struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */ |
| 58 | void **struct_ptr, /* Pointer to a target structure's pointer */ |
| 59 | const void *buffer, /* Data to be decoded */ |
| 60 | size_t size, /* Size of data buffer */ |
| 61 | int skip_bits, /* Number of unused leading bits, 0..7 */ |
| 62 | int unused_bits /* Number of unused tailing bits, 0..7 */ |
| 63 | ); |
| 64 | /* |
| 65 | * Type of the type-specific PER decoder function. |
| 66 | */ |
| 67 | typedef asn_dec_rval_t (per_type_decoder_f)(asn_codec_ctx_t *opt_codec_ctx, |
| 68 | struct asn_TYPE_descriptor_s *type_descriptor, |
| 69 | asn_per_constraints_t *constraints, |
| 70 | void **struct_ptr, |
| 71 | asn_per_data_t *per_data |
| 72 | ); |
| 73 | |
| 74 | #ifdef __cplusplus |
| 75 | } |
| 76 | #endif |
| 77 | |
| 78 | #endif /* _PER_DECODER_H_ */ |