| /*- |
| * Copyright (c) 2003, 2004, 2006 Lev Walkin <vlm@lionet.info>. |
| * All rights reserved. |
| * Redistribution and modifications are permitted subject to BSD license. |
| */ |
| #include <asn_internal.h> |
| #include <constr_SEQUENCE_OF.h> |
| #include <asn_SEQUENCE_OF.h> |
| |
| /* |
| * The DER encoder of the SEQUENCE OF type. |
| */ |
| asn_enc_rval_t |
| SEQUENCE_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr, |
| int tag_mode, ber_tlv_tag_t tag, |
| asn_app_consume_bytes_f *cb, void *app_key) { |
| asn_TYPE_member_t *elm = td->elements; |
| asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(ptr); |
| size_t computed_size = 0; |
| ssize_t encoding_size = 0; |
| asn_enc_rval_t erval; |
| int edx; |
| |
| ASN_DEBUG("Estimating size of SEQUENCE OF %s", td->name); |
| |
| /* |
| * Gather the length of the underlying members sequence. |
| */ |
| for(edx = 0; edx < list->count; edx++) { |
| void *memb_ptr = list->array[edx]; |
| if(!memb_ptr) continue; |
| erval = elm->type->op->der_encoder(elm->type, memb_ptr, |
| 0, elm->tag, |
| 0, 0); |
| if(erval.encoded == -1) |
| return erval; |
| computed_size += erval.encoded; |
| } |
| |
| /* |
| * Encode the TLV for the sequence itself. |
| */ |
| encoding_size = der_write_tags(td, computed_size, tag_mode, 1, tag, |
| cb, app_key); |
| if(encoding_size == -1) { |
| erval.encoded = -1; |
| erval.failed_type = td; |
| erval.structure_ptr = ptr; |
| return erval; |
| } |
| |
| computed_size += encoding_size; |
| if(!cb) { |
| erval.encoded = computed_size; |
| ASN__ENCODED_OK(erval); |
| } |
| |
| ASN_DEBUG("Encoding members of SEQUENCE OF %s", td->name); |
| |
| /* |
| * Encode all members. |
| */ |
| for(edx = 0; edx < list->count; edx++) { |
| void *memb_ptr = list->array[edx]; |
| if(!memb_ptr) continue; |
| erval = elm->type->op->der_encoder(elm->type, memb_ptr, |
| 0, elm->tag, |
| cb, app_key); |
| if(erval.encoded == -1) |
| return erval; |
| encoding_size += erval.encoded; |
| } |
| |
| if(computed_size != (size_t)encoding_size) { |
| /* |
| * Encoded size is not equal to the computed size. |
| */ |
| erval.encoded = -1; |
| erval.failed_type = td; |
| erval.structure_ptr = ptr; |
| } else { |
| erval.encoded = computed_size; |
| erval.structure_ptr = 0; |
| erval.failed_type = 0; |
| } |
| |
| return erval; |
| } |
| |
| asn_enc_rval_t |
| SEQUENCE_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
| int ilevel, enum xer_encoder_flags_e flags, |
| asn_app_consume_bytes_f *cb, void *app_key) { |
| asn_enc_rval_t er; |
| asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics; |
| asn_TYPE_member_t *elm = td->elements; |
| asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(sptr); |
| const char *mname = specs->as_XMLValueList |
| ? 0 : ((*elm->name) ? elm->name : elm->type->xml_tag); |
| unsigned int mlen = mname ? strlen(mname) : 0; |
| int xcan = (flags & XER_F_CANONICAL); |
| int i; |
| |
| if(!sptr) ASN__ENCODE_FAILED; |
| |
| er.encoded = 0; |
| |
| for(i = 0; i < list->count; i++) { |
| asn_enc_rval_t tmper; |
| void *memb_ptr = list->array[i]; |
| if(!memb_ptr) continue; |
| |
| if(mname) { |
| if(!xcan) ASN__TEXT_INDENT(1, ilevel); |
| ASN__CALLBACK3("<", 1, mname, mlen, ">", 1); |
| } |
| |
| tmper = elm->type->op->xer_encoder(elm->type, memb_ptr, |
| ilevel + 1, flags, cb, app_key); |
| if(tmper.encoded == -1) return tmper; |
| if(tmper.encoded == 0 && specs->as_XMLValueList) { |
| const char *name = elm->type->xml_tag; |
| size_t len = strlen(name); |
| if(!xcan) ASN__TEXT_INDENT(1, ilevel + 1); |
| ASN__CALLBACK3("<", 1, name, len, "/>", 2); |
| } |
| |
| if(mname) { |
| ASN__CALLBACK3("</", 2, mname, mlen, ">", 1); |
| er.encoded += 5; |
| } |
| |
| er.encoded += (2 * mlen) + tmper.encoded; |
| } |
| |
| if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1); |
| |
| ASN__ENCODED_OK(er); |
| cb_failed: |
| ASN__ENCODE_FAILED; |
| } |
| |
| asn_enc_rval_t |
| SEQUENCE_OF_encode_uper(asn_TYPE_descriptor_t *td, |
| const asn_per_constraints_t *constraints, void *sptr, |
| asn_per_outp_t *po) { |
| asn_anonymous_sequence_ *list; |
| const asn_per_constraint_t *ct; |
| asn_enc_rval_t er; |
| asn_TYPE_member_t *elm = td->elements; |
| int seq; |
| |
| if(!sptr) ASN__ENCODE_FAILED; |
| list = _A_SEQUENCE_FROM_VOID(sptr); |
| |
| er.encoded = 0; |
| |
| ASN_DEBUG("Encoding %s as SEQUENCE OF (%d)", td->name, list->count); |
| |
| if(constraints) ct = &constraints->size; |
| else if(td->per_constraints) ct = &td->per_constraints->size; |
| else ct = 0; |
| |
| /* If extensible constraint, check if size is in root */ |
| if(ct) { |
| int not_in_root = (list->count < ct->lower_bound |
| || list->count > ct->upper_bound); |
| ASN_DEBUG("lb %ld ub %ld %s", |
| ct->lower_bound, ct->upper_bound, |
| ct->flags & APC_EXTENSIBLE ? "ext" : "fix"); |
| if(ct->flags & APC_EXTENSIBLE) { |
| /* Declare whether size is in extension root */ |
| if(per_put_few_bits(po, not_in_root, 1)) |
| ASN__ENCODE_FAILED; |
| if(not_in_root) ct = 0; |
| } else if(not_in_root && ct->effective_bits >= 0) |
| ASN__ENCODE_FAILED; |
| } |
| |
| if(ct && ct->effective_bits >= 0) { |
| /* X.691, #19.5: No length determinant */ |
| if(per_put_few_bits(po, list->count - ct->lower_bound, |
| ct->effective_bits)) |
| ASN__ENCODE_FAILED; |
| } |
| |
| for(seq = -1; seq < list->count;) { |
| ssize_t mayEncode; |
| if(seq < 0) seq = 0; |
| if(ct && ct->effective_bits >= 0) { |
| mayEncode = list->count; |
| } else { |
| mayEncode = uper_put_length(po, list->count - seq); |
| if(mayEncode < 0) ASN__ENCODE_FAILED; |
| } |
| |
| while(mayEncode--) { |
| void *memb_ptr = list->array[seq++]; |
| if(!memb_ptr) ASN__ENCODE_FAILED; |
| er = elm->type->op->uper_encoder(elm->type, |
| elm->per_constraints, memb_ptr, po); |
| if(er.encoded == -1) |
| ASN__ENCODE_FAILED; |
| } |
| } |
| |
| ASN__ENCODED_OK(er); |
| } |
| |
| asn_TYPE_operation_t asn_OP_SEQUENCE_OF = { |
| SEQUENCE_OF_free, |
| SEQUENCE_OF_print, |
| SEQUENCE_OF_compare, |
| SEQUENCE_OF_constraint, |
| SEQUENCE_OF_decode_ber, |
| SEQUENCE_OF_encode_der, |
| SEQUENCE_OF_decode_xer, |
| SEQUENCE_OF_encode_xer, |
| #ifdef ASN_DISABLE_OER_SUPPORT |
| 0, |
| 0, |
| #else |
| 0, |
| 0, |
| #endif /* ASN_DISABLE_OER_SUPPORT */ |
| #ifdef ASN_DISABLE_PER_SUPPORT |
| 0, |
| 0, |
| #else |
| SEQUENCE_OF_decode_uper, |
| SEQUENCE_OF_encode_uper, |
| #endif /* ASN_DISABLE_PER_SUPPORT */ |
| 0 /* Use generic outmost tag fetcher */ |
| }; |
| |