/*- * Copyright (c) 2003, 2004, 2006 Lev Walkin . * All rights reserved. * Redistribution and modifications are permitted subject to BSD license. */ #include #include #include /* * The DER encoder of the SEQUENCE OF type. */ asn_enc_rval_t SEQUENCE_OF_encode_der(const asn_TYPE_descriptor_t *td, const 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; const asn_anonymous_sequence_ *list = _A_CSEQUENCE_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(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, enum xer_encoder_flags_e flags, asn_app_consume_bytes_f *cb, void *app_key) { asn_enc_rval_t er; const asn_SET_OF_specifics_t *specs = (const asn_SET_OF_specifics_t *)td->specifics; const asn_TYPE_member_t *elm = td->elements; const asn_anonymous_sequence_ *list = _A_CSEQUENCE_FROM_VOID(sptr); const char *mname = specs->as_XMLValueList ? 0 : ((*elm->name) ? elm->name : elm->type->xml_tag); size_t 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; er.encoded += tmper.encoded; 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("", 1); } } if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1); ASN__ENCODED_OK(er); cb_failed: ASN__ENCODE_FAILED; } #ifndef ASN_DISABLE_PER_SUPPORT asn_enc_rval_t SEQUENCE_OF_encode_uper(const asn_TYPE_descriptor_t *td, const asn_per_constraints_t *constraints, const void *sptr, asn_per_outp_t *po) { const asn_anonymous_sequence_ *list; const asn_per_constraint_t *ct; asn_enc_rval_t er; const asn_TYPE_member_t *elm = td->elements; size_t encoded_edx; if(!sptr) ASN__ENCODE_FAILED; list = _A_CSEQUENCE_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->encoding_constraints.per_constraints) ct = &td->encoding_constraints.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; } else if(list->count == 0) { /* When the list is empty add only the length determinant * X.691, #20.6 and #11.9.4.1 */ if (uper_put_length(po, 0, 0)) { ASN__ENCODE_FAILED; } ASN__ENCODED_OK(er); } for(encoded_edx = 0; (ssize_t)encoded_edx < list->count;) { ssize_t may_encode; size_t edx; int need_eom = 0; if(ct && ct->effective_bits >= 0) { may_encode = list->count; } else { may_encode = uper_put_length(po, list->count - encoded_edx, &need_eom); if(may_encode < 0) ASN__ENCODE_FAILED; } for(edx = encoded_edx; edx < encoded_edx + may_encode; edx++) { void *memb_ptr = list->array[edx]; if(!memb_ptr) ASN__ENCODE_FAILED; er = elm->type->op->uper_encoder( elm->type, elm->encoding_constraints.per_constraints, memb_ptr, po); if(er.encoded == -1) ASN__ENCODE_FAILED; } if(need_eom && uper_put_length(po, 0, 0)) ASN__ENCODE_FAILED; /* End of Message length */ encoded_edx += may_encode; } ASN__ENCODED_OK(er); } #endif /* ASN_DISABLE_PER_SUPPORT */ int SEQUENCE_OF_compare(const asn_TYPE_descriptor_t *td, const void *aptr, const void *bptr) { const asn_anonymous_sequence_ *a = _A_CSEQUENCE_FROM_VOID(aptr); const asn_anonymous_sequence_ *b = _A_CSEQUENCE_FROM_VOID(bptr); ssize_t idx; if(a && b) { ssize_t common_length = (a->count < b->count ? a->count : b->count); for(idx = 0; idx < common_length; idx++) { int ret = td->elements->type->op->compare_struct( td->elements->type, a->array[idx], b->array[idx]); if(ret) return ret; } if(idx < b->count) /* more elements in b */ return -1; /* a is shorter, so put it first */ if(idx < a->count) return 1; } else if(!a) { return -1; } else if(!b) { return 1; } return 0; } asn_TYPE_operation_t asn_OP_SEQUENCE_OF = { SEQUENCE_OF_free, SEQUENCE_OF_print, SEQUENCE_OF_compare, SEQUENCE_OF_decode_ber, SEQUENCE_OF_encode_der, SEQUENCE_OF_decode_xer, SEQUENCE_OF_encode_xer, #ifdef ASN_DISABLE_OER_SUPPORT 0, 0, #else SEQUENCE_OF_decode_oer, /* Same as SET OF decoder. */ SEQUENCE_OF_encode_oer, /* Same as SET OF encoder */ #endif /* ASN_DISABLE_OER_SUPPORT */ #ifdef ASN_DISABLE_PER_SUPPORT 0, 0, #else SEQUENCE_OF_decode_uper, /* Same as SET OF decoder */ SEQUENCE_OF_encode_uper, #endif /* ASN_DISABLE_PER_SUPPORT */ SEQUENCE_OF_random_fill, 0 /* Use generic outmost tag fetcher */ };