Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 2 | * Copyright (c) 2003, 2004, 2006 Lev Walkin <vlm@lionet.info>. |
| 3 | * All rights reserved. |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 4 | * Redistribution and modifications are permitted subject to BSD license. |
| 5 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 6 | #include <asn_internal.h> |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 7 | #include <constr_SEQUENCE_OF.h> |
| 8 | #include <asn_SEQUENCE_OF.h> |
| 9 | |
| 10 | /* |
| 11 | * The DER encoder of the SEQUENCE OF type. |
| 12 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 13 | asn_enc_rval_t |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 14 | SEQUENCE_OF_encode_der(const asn_TYPE_descriptor_t *td, const void *ptr, |
| 15 | int tag_mode, ber_tlv_tag_t tag, |
| 16 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 17 | asn_TYPE_member_t *elm = td->elements; |
| 18 | const asn_anonymous_sequence_ *list = _A_CSEQUENCE_FROM_VOID(ptr); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 19 | size_t computed_size = 0; |
| 20 | ssize_t encoding_size = 0; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 21 | asn_enc_rval_t erval; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 22 | int edx; |
| 23 | |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 24 | ASN_DEBUG("Estimating size of SEQUENCE OF %s", td->name); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 25 | |
| 26 | /* |
| 27 | * Gather the length of the underlying members sequence. |
| 28 | */ |
| 29 | for(edx = 0; edx < list->count; edx++) { |
| 30 | void *memb_ptr = list->array[edx]; |
Lev Walkin | da9a3b8 | 2005-08-16 17:00:21 +0000 | [diff] [blame] | 31 | if(!memb_ptr) continue; |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 32 | erval = elm->type->op->der_encoder(elm->type, memb_ptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 33 | 0, elm->tag, |
| 34 | 0, 0); |
| 35 | if(erval.encoded == -1) |
| 36 | return erval; |
| 37 | computed_size += erval.encoded; |
| 38 | } |
| 39 | |
| 40 | /* |
| 41 | * Encode the TLV for the sequence itself. |
| 42 | */ |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 43 | encoding_size = der_write_tags(td, computed_size, tag_mode, 1, tag, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 44 | cb, app_key); |
| 45 | if(encoding_size == -1) { |
| 46 | erval.encoded = -1; |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 47 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 48 | erval.structure_ptr = ptr; |
| 49 | return erval; |
| 50 | } |
| 51 | |
| 52 | computed_size += encoding_size; |
| 53 | if(!cb) { |
| 54 | erval.encoded = computed_size; |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 55 | ASN__ENCODED_OK(erval); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 56 | } |
| 57 | |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 58 | ASN_DEBUG("Encoding members of SEQUENCE OF %s", td->name); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 59 | |
| 60 | /* |
| 61 | * Encode all members. |
| 62 | */ |
| 63 | for(edx = 0; edx < list->count; edx++) { |
| 64 | void *memb_ptr = list->array[edx]; |
Lev Walkin | da9a3b8 | 2005-08-16 17:00:21 +0000 | [diff] [blame] | 65 | if(!memb_ptr) continue; |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 66 | erval = elm->type->op->der_encoder(elm->type, memb_ptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 67 | 0, elm->tag, |
| 68 | cb, app_key); |
| 69 | if(erval.encoded == -1) |
| 70 | return erval; |
| 71 | encoding_size += erval.encoded; |
| 72 | } |
| 73 | |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 74 | if(computed_size != (size_t)encoding_size) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 75 | /* |
| 76 | * Encoded size is not equal to the computed size. |
| 77 | */ |
| 78 | erval.encoded = -1; |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 79 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 80 | erval.structure_ptr = ptr; |
| 81 | } else { |
| 82 | erval.encoded = computed_size; |
Lev Walkin | d1bfea6 | 2005-11-08 03:06:16 +0000 | [diff] [blame] | 83 | erval.structure_ptr = 0; |
| 84 | erval.failed_type = 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | return erval; |
| 88 | } |
| 89 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 90 | asn_enc_rval_t |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 91 | SEQUENCE_OF_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr, |
| 92 | int ilevel, enum xer_encoder_flags_e flags, |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 93 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 94 | asn_enc_rval_t er; |
Lev Walkin | d84f603 | 2017-10-03 16:33:59 -0700 | [diff] [blame] | 95 | const asn_SET_OF_specifics_t *specs = (const asn_SET_OF_specifics_t *)td->specifics; |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 96 | const asn_TYPE_member_t *elm = td->elements; |
| 97 | const asn_anonymous_sequence_ *list = _A_CSEQUENCE_FROM_VOID(sptr); |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 98 | const char *mname = specs->as_XMLValueList |
| 99 | ? 0 |
| 100 | : ((*elm->name) ? elm->name : elm->type->xml_tag); |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 101 | size_t mlen = mname ? strlen(mname) : 0; |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 102 | int xcan = (flags & XER_F_CANONICAL); |
| 103 | int i; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 104 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 105 | if(!sptr) ASN__ENCODE_FAILED; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 106 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 107 | er.encoded = 0; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 108 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 109 | for(i = 0; i < list->count; i++) { |
| 110 | asn_enc_rval_t tmper; |
| 111 | void *memb_ptr = list->array[i]; |
| 112 | if(!memb_ptr) continue; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 113 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 114 | if(mname) { |
| 115 | if(!xcan) ASN__TEXT_INDENT(1, ilevel); |
| 116 | ASN__CALLBACK3("<", 1, mname, mlen, ">", 1); |
| 117 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 118 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 119 | tmper = elm->type->op->xer_encoder(elm->type, memb_ptr, ilevel + 1, |
| 120 | flags, cb, app_key); |
| 121 | if(tmper.encoded == -1) return tmper; |
| 122 | er.encoded += tmper.encoded; |
| 123 | if(tmper.encoded == 0 && specs->as_XMLValueList) { |
| 124 | const char *name = elm->type->xml_tag; |
| 125 | size_t len = strlen(name); |
| 126 | if(!xcan) ASN__TEXT_INDENT(1, ilevel + 1); |
| 127 | ASN__CALLBACK3("<", 1, name, len, "/>", 2); |
| 128 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 129 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 130 | if(mname) { |
| 131 | ASN__CALLBACK3("</", 2, mname, mlen, ">", 1); |
| 132 | } |
| 133 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 134 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 135 | if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1); |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 136 | |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 137 | ASN__ENCODED_OK(er); |
Lev Walkin | 942fd08 | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 138 | cb_failed: |
Lev Walkin | 4fe2882 | 2017-09-18 02:57:34 -0700 | [diff] [blame] | 139 | ASN__ENCODE_FAILED; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 140 | } |
| 141 | |
Lev Walkin | ddac400 | 2017-10-23 22:15:53 -0700 | [diff] [blame] | 142 | #ifndef ASN_DISABLE_PER_SUPPORT |
| 143 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 144 | asn_enc_rval_t |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 145 | SEQUENCE_OF_encode_uper(const asn_TYPE_descriptor_t *td, |
| 146 | const asn_per_constraints_t *constraints, |
| 147 | const void *sptr, asn_per_outp_t *po) { |
| 148 | const asn_anonymous_sequence_ *list; |
Lev Walkin | 494fb70 | 2017-08-07 20:07:00 -0700 | [diff] [blame] | 149 | const asn_per_constraint_t *ct; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 150 | asn_enc_rval_t er; |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 151 | const asn_TYPE_member_t *elm = td->elements; |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 152 | size_t encoded_edx; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 153 | |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 154 | if(!sptr) ASN__ENCODE_FAILED; |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 155 | list = _A_CSEQUENCE_FROM_VOID(sptr); |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 156 | |
Lev Walkin | 20696a4 | 2017-10-17 21:27:33 -0700 | [diff] [blame] | 157 | er.encoded = 0; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 158 | |
| 159 | ASN_DEBUG("Encoding %s as SEQUENCE OF (%d)", td->name, list->count); |
| 160 | |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 161 | if(constraints) ct = &constraints->size; |
| 162 | else if(td->encoding_constraints.per_constraints) |
| 163 | ct = &td->encoding_constraints.per_constraints->size; |
| 164 | else ct = 0; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 165 | |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 166 | /* If extensible constraint, check if size is in root */ |
| 167 | if(ct) { |
| 168 | int not_in_root = |
| 169 | (list->count < ct->lower_bound || list->count > ct->upper_bound); |
| 170 | ASN_DEBUG("lb %ld ub %ld %s", ct->lower_bound, ct->upper_bound, |
| 171 | ct->flags & APC_EXTENSIBLE ? "ext" : "fix"); |
| 172 | if(ct->flags & APC_EXTENSIBLE) { |
| 173 | /* Declare whether size is in extension root */ |
| 174 | if(per_put_few_bits(po, not_in_root, 1)) ASN__ENCODE_FAILED; |
| 175 | if(not_in_root) ct = 0; |
| 176 | } else if(not_in_root && ct->effective_bits >= 0) { |
| 177 | ASN__ENCODE_FAILED; |
| 178 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 179 | |
Lev Walkin | 1351752 | 2017-10-25 23:02:44 -0700 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | if(ct && ct->effective_bits >= 0) { |
| 183 | /* X.691, #19.5: No length determinant */ |
| 184 | if(per_put_few_bits(po, list->count - ct->lower_bound, |
| 185 | ct->effective_bits)) |
| 186 | ASN__ENCODE_FAILED; |
| 187 | } else if(list->count == 0) { |
Vasil Velichkov | abb7133 | 2017-10-25 20:56:33 +0300 | [diff] [blame] | 188 | /* When the list is empty add only the length determinant |
| 189 | * X.691, #20.6 and #11.9.4.1 |
| 190 | */ |
| 191 | if (uper_put_length(po, 0, 0)) { |
| 192 | ASN__ENCODE_FAILED; |
| 193 | } |
| 194 | ASN__ENCODED_OK(er); |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 195 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 196 | |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 197 | for(encoded_edx = 0; (ssize_t)encoded_edx < list->count;) { |
| 198 | ssize_t may_encode; |
| 199 | size_t edx; |
| 200 | int need_eom = 0; |
| 201 | |
| 202 | if(ct && ct->effective_bits >= 0) { |
| 203 | may_encode = list->count; |
| 204 | } else { |
| 205 | may_encode = |
| 206 | uper_put_length(po, list->count - encoded_edx, &need_eom); |
| 207 | if(may_encode < 0) ASN__ENCODE_FAILED; |
| 208 | } |
| 209 | |
| 210 | for(edx = encoded_edx; edx < encoded_edx + may_encode; edx++) { |
| 211 | void *memb_ptr = list->array[edx]; |
| 212 | if(!memb_ptr) ASN__ENCODE_FAILED; |
| 213 | er = elm->type->op->uper_encoder( |
| 214 | elm->type, elm->encoding_constraints.per_constraints, memb_ptr, |
| 215 | po); |
| 216 | if(er.encoded == -1) ASN__ENCODE_FAILED; |
| 217 | } |
| 218 | |
| 219 | if(need_eom && uper_put_length(po, 0, 0)) |
| 220 | ASN__ENCODE_FAILED; /* End of Message length */ |
| 221 | |
| 222 | encoded_edx += may_encode; |
| 223 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 224 | |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 225 | ASN__ENCODED_OK(er); |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 226 | } |
| 227 | |
Lev Walkin | ddac400 | 2017-10-23 22:15:53 -0700 | [diff] [blame] | 228 | #endif /* ASN_DISABLE_PER_SUPPORT */ |
| 229 | |
Lev Walkin | 52b88e1 | 2017-10-24 03:03:46 -0700 | [diff] [blame] | 230 | int |
| 231 | SEQUENCE_OF_compare(const asn_TYPE_descriptor_t *td, const void *aptr, |
| 232 | const void *bptr) { |
| 233 | const asn_anonymous_sequence_ *a = _A_CSEQUENCE_FROM_VOID(aptr); |
| 234 | const asn_anonymous_sequence_ *b = _A_CSEQUENCE_FROM_VOID(bptr); |
| 235 | ssize_t idx; |
| 236 | |
| 237 | if(a && b) { |
| 238 | ssize_t common_length = (a->count < b->count ? a->count : b->count); |
| 239 | for(idx = 0; idx < common_length; idx++) { |
| 240 | int ret = td->elements->type->op->compare_struct( |
| 241 | td->elements->type, a->array[idx], b->array[idx]); |
| 242 | if(ret) return ret; |
| 243 | } |
| 244 | |
| 245 | if(idx < b->count) /* more elements in b */ |
| 246 | return -1; /* a is shorter, so put it first */ |
| 247 | if(idx < a->count) return 1; |
| 248 | |
| 249 | } else if(!a) { |
| 250 | return -1; |
| 251 | } else if(!b) { |
| 252 | return 1; |
| 253 | } |
| 254 | |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 259 | asn_TYPE_operation_t asn_OP_SEQUENCE_OF = { |
| 260 | SEQUENCE_OF_free, |
| 261 | SEQUENCE_OF_print, |
| 262 | SEQUENCE_OF_compare, |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 263 | SEQUENCE_OF_decode_ber, |
| 264 | SEQUENCE_OF_encode_der, |
| 265 | SEQUENCE_OF_decode_xer, |
| 266 | SEQUENCE_OF_encode_xer, |
| 267 | #ifdef ASN_DISABLE_OER_SUPPORT |
| 268 | 0, |
| 269 | 0, |
| 270 | #else |
Lev Walkin | ddac400 | 2017-10-23 22:15:53 -0700 | [diff] [blame] | 271 | SEQUENCE_OF_decode_oer, /* Same as SET OF decoder. */ |
| 272 | SEQUENCE_OF_encode_oer, /* Same as SET OF encoder */ |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 273 | #endif /* ASN_DISABLE_OER_SUPPORT */ |
| 274 | #ifdef ASN_DISABLE_PER_SUPPORT |
| 275 | 0, |
| 276 | 0, |
| 277 | #else |
Lev Walkin | ddac400 | 2017-10-23 22:15:53 -0700 | [diff] [blame] | 278 | SEQUENCE_OF_decode_uper, /* Same as SET OF decoder */ |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 279 | SEQUENCE_OF_encode_uper, |
| 280 | #endif /* ASN_DISABLE_PER_SUPPORT */ |
Lev Walkin | a5972be | 2017-09-29 23:15:58 -0700 | [diff] [blame] | 281 | SEQUENCE_OF_random_fill, |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 282 | 0 /* Use generic outmost tag fetcher */ |
| 283 | }; |
| 284 | |