Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 2 | * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved. |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 6 | #include <asn_codecs_prim.h> |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 7 | #include <NULL.h> |
| 8 | #include <BOOLEAN.h> /* Implemented in terms of BOOLEAN type */ |
| 9 | |
| 10 | /* |
| 11 | * NULL basic type description. |
| 12 | */ |
Wim Lewis | 18c2ec9 | 2014-07-29 11:30:10 -0700 | [diff] [blame] | 13 | static const ber_tlv_tag_t asn_DEF_NULL_tags[] = { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 14 | (ASN_TAG_CLASS_UNIVERSAL | (5 << 2)) |
| 15 | }; |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 16 | asn_TYPE_operation_t asn_OP_NULL = { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 17 | BOOLEAN_free, |
| 18 | NULL_print, |
Lev Walkin | cd2f48e | 2017-08-10 02:14:59 -0700 | [diff] [blame] | 19 | NULL_compare, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 20 | asn_generic_no_constraint, |
| 21 | BOOLEAN_decode_ber, /* Implemented in terms of BOOLEAN */ |
| 22 | NULL_encode_der, /* Special handling of DER encoding */ |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 23 | NULL_decode_xer, |
| 24 | NULL_encode_xer, |
Lev Walkin | cc15947 | 2017-07-06 08:26:36 -0700 | [diff] [blame] | 25 | #ifdef ASN_DISABLE_OER_SUPPORT |
| 26 | 0, |
| 27 | 0, |
| 28 | #else |
| 29 | 0, |
| 30 | 0, |
| 31 | #endif /* ASN_DISABLE_OER_SUPPORT */ |
Lev Walkin | b33425f | 2017-07-14 14:59:52 +0400 | [diff] [blame] | 32 | #ifdef ASN_DISABLE_PER_SUPPORT |
| 33 | 0, |
| 34 | 0, |
| 35 | #else |
| 36 | NULL_decode_uper, /* Unaligned PER decoder */ |
| 37 | NULL_encode_uper, /* Unaligned PER encoder */ |
| 38 | #endif /* ASN_DISABLE_PER_SUPPORT */ |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 39 | 0 /* Use generic outmost tag fetcher */ |
| 40 | }; |
| 41 | asn_TYPE_descriptor_t asn_DEF_NULL = { |
| 42 | "NULL", |
| 43 | "NULL", |
| 44 | &asn_OP_NULL, |
| 45 | asn_generic_no_constraint, |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 46 | asn_DEF_NULL_tags, |
| 47 | sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]), |
| 48 | asn_DEF_NULL_tags, /* Same as above */ |
| 49 | sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]), |
Lev Walkin | 7678076 | 2017-07-07 10:07:30 -0700 | [diff] [blame] | 50 | 0, /* No OER visible constraints */ |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 51 | 0, /* No PER visible constraints */ |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 52 | 0, 0, /* No members */ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 53 | 0 /* No specifics */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 54 | }; |
| 55 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 56 | asn_enc_rval_t |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 57 | NULL_encode_der(asn_TYPE_descriptor_t *td, void *ptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 58 | int tag_mode, ber_tlv_tag_t tag, |
| 59 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 60 | asn_enc_rval_t erval; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 61 | |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 62 | erval.encoded = der_write_tags(td, 0, tag_mode, 0, tag, cb, app_key); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 63 | if(erval.encoded == -1) { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 64 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 65 | erval.structure_ptr = ptr; |
| 66 | } |
| 67 | |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 68 | ASN__ENCODED_OK(erval); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 71 | asn_enc_rval_t |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 72 | NULL_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 73 | int ilevel, enum xer_encoder_flags_e flags, |
| 74 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 75 | asn_enc_rval_t er; |
| 76 | |
| 77 | (void)td; |
| 78 | (void)sptr; |
| 79 | (void)ilevel; |
| 80 | (void)flags; |
| 81 | (void)cb; |
| 82 | (void)app_key; |
| 83 | |
| 84 | /* XMLNullValue is empty */ |
| 85 | er.encoded = 0; |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 86 | ASN__ENCODED_OK(er); |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 87 | } |
| 88 | |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 89 | |
Lev Walkin | 0fab1a6 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 90 | static enum xer_pbd_rval |
| 91 | NULL__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) { |
Lev Walkin | e0b56e0 | 2005-02-25 12:10:27 +0000 | [diff] [blame] | 92 | (void)td; |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 93 | (void)sptr; |
Lev Walkin | bfc76e8 | 2014-01-14 02:44:54 -0800 | [diff] [blame] | 94 | (void)chunk_buf; /* Going to be empty according to the rules below. */ |
Lev Walkin | 0fab1a6 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 95 | |
Lev Walkin | f798228 | 2013-03-16 07:01:42 -0700 | [diff] [blame] | 96 | /* |
| 97 | * There must be no content in self-terminating <NULL/> tag. |
| 98 | */ |
| 99 | if(chunk_size) |
Lev Walkin | 0fab1a6 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 100 | return XPBD_BROKEN_ENCODING; |
Lev Walkin | f798228 | 2013-03-16 07:01:42 -0700 | [diff] [blame] | 101 | else |
| 102 | return XPBD_BODY_CONSUMED; |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | asn_dec_rval_t |
| 106 | NULL_decode_xer(asn_codec_ctx_t *opt_codec_ctx, |
| 107 | asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname, |
Lev Walkin | 8c3b854 | 2005-03-10 18:52:02 +0000 | [diff] [blame] | 108 | const void *buf_ptr, size_t size) { |
Lev Walkin | b8ec15d | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 109 | |
| 110 | return xer_decode_primitive(opt_codec_ctx, td, |
| 111 | sptr, sizeof(NULL_t), opt_mname, buf_ptr, size, |
| 112 | NULL__xer_body_decode); |
| 113 | } |
| 114 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 115 | int |
Lev Walkin | cd2f48e | 2017-08-10 02:14:59 -0700 | [diff] [blame] | 116 | NULL_compare(const asn_TYPE_descriptor_t *td, const void *a, const void *b) { |
| 117 | (void)td; |
| 118 | (void)a; |
| 119 | (void)b; |
| 120 | return 0; |
| 121 | } |
| 122 | |
| 123 | int |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 124 | NULL_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 125 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 126 | |
| 127 | (void)td; /* Unused argument */ |
| 128 | (void)ilevel; /* Unused argument */ |
| 129 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 130 | if(sptr) { |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 131 | return (cb("<present>", 9, app_key) < 0) ? -1 : 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 132 | } else { |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 133 | return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 134 | } |
| 135 | } |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 136 | |
| 137 | asn_dec_rval_t |
| 138 | NULL_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, |
Lev Walkin | 494fb70 | 2017-08-07 20:07:00 -0700 | [diff] [blame] | 139 | const asn_per_constraints_t *constraints, void **sptr, |
| 140 | asn_per_data_t *pd) { |
| 141 | asn_dec_rval_t rv; |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 142 | |
| 143 | (void)opt_codec_ctx; |
| 144 | (void)td; |
| 145 | (void)constraints; |
| 146 | (void)pd; |
| 147 | |
| 148 | if(!*sptr) { |
| 149 | *sptr = MALLOC(sizeof(NULL_t)); |
| 150 | if(*sptr) { |
| 151 | *(NULL_t *)*sptr = 0; |
| 152 | } else { |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 153 | ASN__DECODE_FAILED; |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 154 | } |
| 155 | } |
| 156 | |
| 157 | /* |
| 158 | * NULL type does not have content octets. |
| 159 | */ |
| 160 | |
| 161 | rv.code = RC_OK; |
| 162 | rv.consumed = 0; |
| 163 | return rv; |
| 164 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 165 | |
| 166 | asn_enc_rval_t |
Lev Walkin | 494fb70 | 2017-08-07 20:07:00 -0700 | [diff] [blame] | 167 | NULL_encode_uper(asn_TYPE_descriptor_t *td, |
| 168 | const asn_per_constraints_t *constraints, void *sptr, |
| 169 | asn_per_outp_t *po) { |
| 170 | asn_enc_rval_t er; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 171 | |
| 172 | (void)td; |
| 173 | (void)constraints; |
| 174 | (void)sptr; |
| 175 | (void)po; |
| 176 | |
| 177 | er.encoded = 0; |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 178 | ASN__ENCODED_OK(er); |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 179 | } |