| #include "asn1fix_internal.h" |
| #include "asn1fix_cws.h" |
| |
| static int _asn1f_parse_class_object_data(arg_t *, asn1p_expr_t *eclass, |
| struct asn1p_ioc_row_s *row, asn1p_wsyntx_t *syntax, |
| uint8_t *buf, const uint8_t *bend, |
| int optional_mode, uint8_t **newpos); |
| static int _asn1f_assign_cell_value(arg_t *arg, struct asn1p_ioc_row_s *row, struct asn1p_ioc_cell_s *cell, uint8_t *buf, const uint8_t *bend); |
| |
| int |
| asn1f_parse_class_object(arg_t *arg) { |
| asn1p_expr_t *expr = arg->expr; |
| asn1p_expr_t *eclass; |
| asn1p_ioc_row_t *row; |
| void *new_rows_ptr; |
| int ret; |
| |
| if(expr->meta_type != AMT_VALUE |
| || expr->expr_type != A1TC_REFERENCE |
| || !expr->value |
| || expr->value->type != ATV_UNPARSED) |
| return 0; |
| |
| /* |
| * Find the governing class. |
| */ |
| eclass = asn1f_find_terminal_type(arg, expr); |
| if(!eclass |
| || eclass->meta_type != AMT_OBJECTCLASS |
| || eclass->expr_type != A1TC_CLASSDEF) { |
| return 0; |
| } |
| |
| DEBUG("Value %s of CLASS %s found at line %d", |
| expr->Identifier, eclass->Identifier, expr->_lineno); |
| |
| if(!eclass->with_syntax) { |
| DEBUG("Can't process classes without %s just yet", |
| "WITH SYNTAX"); |
| return 0; |
| } |
| |
| row = asn1p_ioc_row_new(eclass); |
| assert(row); |
| |
| ret = _asn1f_parse_class_object_data(arg, eclass, row, |
| eclass->with_syntax, |
| expr->value->value.string.buf + 1, |
| expr->value->value.string.buf |
| + expr->value->value.string.size - 1, |
| 0, 0); |
| if(ret) { |
| LOG((ret < 0), |
| "Cannot parse %s of CLASS %s found at line %d", |
| expr->Identifier, eclass->Identifier, expr->_lineno); |
| asn1p_ioc_row_delete(row); |
| return ret; |
| } |
| |
| new_rows_ptr = realloc(eclass->object_class_matrix.row, |
| (eclass->object_class_matrix.rows + 1) |
| * sizeof(eclass->object_class_matrix.row[0])); |
| assert(new_rows_ptr); |
| eclass->object_class_matrix.row = new_rows_ptr; |
| eclass->object_class_matrix.row[eclass->object_class_matrix.rows] = row; |
| eclass->object_class_matrix.rows++; |
| /* Propagate max identifier length */ |
| if(eclass->object_class_matrix.max_identifier_length |
| < row->max_identifier_length) |
| eclass->object_class_matrix.max_identifier_length |
| = row->max_identifier_length; |
| |
| return 0; |
| } |
| |
| #define SKIPSPACES for(; buf < bend && isspace(*buf); buf++) |
| |
| static int |
| _asn1f_parse_class_object_data(arg_t *arg, asn1p_expr_t *eclass, |
| struct asn1p_ioc_row_s *row, asn1p_wsyntx_t *syntax, |
| uint8_t *buf, const uint8_t *bend, |
| int optional_mode, uint8_t **newpos) { |
| struct asn1p_wsyntx_chunk_s *chunk; |
| int ret; |
| |
| TQ_FOR(chunk, (&syntax->chunks), next) { |
| switch(chunk->type) { |
| case WC_LITERAL: { |
| int token_len = strlen(chunk->content.token); |
| SKIPSPACES; |
| if(bend - buf < token_len |
| || memcmp(buf, chunk->content.token, token_len)) { |
| if(!optional_mode) { |
| FATAL("While parsing object class value %s at line %d: Expected: \"%s\", found: \"%s\"", |
| arg->expr->Identifier, arg->expr->_lineno, chunk->content.token, buf); |
| } |
| if(newpos) *newpos = buf; |
| return -1; |
| } |
| buf += token_len; |
| } break; |
| case WC_WHITESPACE: break; /* Ignore whitespace */ |
| case WC_FIELD: { |
| struct asn1p_ioc_cell_s *cell; |
| int lbraces = 0; |
| uint8_t *p; |
| |
| SKIPSPACES; |
| |
| p = buf; |
| if(p < bend && *p == '{') |
| lbraces = 1, p++; |
| for(; p < bend; p++) { |
| if(lbraces) { |
| /* Search the terminating brace */ |
| switch(*p) { |
| case '}': lbraces--; break; |
| case '{': lbraces++; break; |
| } |
| } else if(isspace(*p)) { |
| break; |
| } |
| } |
| if(lbraces) { |
| FATAL("Field reference %s found in class value definition for %s at line %d can not be satisfied by broken value \"%s\"", |
| chunk->content.token, |
| arg->expr->Identifier, arg->expr->_lineno, buf); |
| if(newpos) *newpos = buf; |
| return -1; |
| } |
| cell = asn1p_ioc_row_cell_fetch(row, |
| chunk->content.token); |
| if(cell == NULL) { |
| FATAL("Field reference %s found in WITH SYNAX {} clause does not match actual field in Object Class %s", |
| chunk->content.token, |
| eclass->Identifier, eclass->_lineno); |
| if(newpos) *newpos = buf; |
| return -1; |
| } |
| DEBUG("Reference %s satisfied by %s (%d)", |
| chunk->content.token, |
| buf, p - buf); |
| ret = _asn1f_assign_cell_value(arg, row, cell, buf, p); |
| if(ret) return ret; |
| buf = p; |
| if(newpos) *newpos = buf; |
| } break; |
| case WC_OPTIONALGROUP: { |
| uint8_t *np = 0; |
| SKIPSPACES; |
| ret = _asn1f_parse_class_object_data(arg, eclass, row, |
| chunk->content.syntax, buf, bend, 1, &np); |
| if(newpos) *newpos = np; |
| if(ret && np != buf) |
| return ret; |
| buf = np; |
| } break; |
| } |
| } |
| |
| |
| if(newpos) *newpos = buf; |
| return 0; |
| } |
| |
| |
| static int |
| _asn1f_assign_cell_value(arg_t *arg, struct asn1p_ioc_row_s *row, struct asn1p_ioc_cell_s *cell, |
| uint8_t *buf, const uint8_t *bend) { |
| asn1p_expr_t *expr; |
| asn1p_ref_t *ref; |
| int idLength; |
| char *p; |
| |
| if((bend - buf) <= 0) { |
| FATAL("Assignment warning: empty string is being assigned into %s for %s at line %d", |
| cell->field->Identifier, |
| arg->expr->Identifier, arg->expr->_lineno); |
| return -1; |
| } |
| |
| p = malloc(bend - buf + 1); |
| assert(p); |
| memcpy(p, buf, bend - buf); |
| p[bend - buf] = '\0'; |
| |
| if(!isalpha(*p)) { |
| |
| if(isdigit(*p)) { |
| asn1c_integer_t value; |
| if(asn1p_atoi(p, &value)) { |
| FATAL("Value %s at line %d is too large for this compiler! Contact the asn1c author.\n", p, arg->expr->_lineno); |
| return -1; |
| } |
| expr = asn1p_expr_new(arg->expr->_lineno); |
| expr->Identifier = p; |
| expr->meta_type = AMT_VALUE; |
| expr->expr_type = ASN_BASIC_INTEGER; |
| expr->value = asn1p_value_fromint(value); |
| } else { |
| WARNING("asn1c is not yet able to parse arbitrary direct values; try converting %s at line %d to a reference.", p, arg->expr->_lineno); |
| free(p); |
| return 1; |
| } |
| } else { |
| ref = asn1p_ref_new(arg->expr->_lineno); |
| asn1p_ref_add_component(ref, p, RLT_UNKNOWN); |
| assert(ref); |
| |
| expr = asn1f_lookup_symbol(arg, arg->mod, arg->expr->rhs_pspecs, ref); |
| if(!expr) { |
| FATAL("Cannot find %s referenced by %s at line %d", |
| p, arg->expr->Identifier, |
| arg->expr->_lineno); |
| return -1; |
| } |
| } |
| |
| DEBUG("Field %s assignment of %s got %s", |
| cell->field->Identifier, p, expr->Identifier); |
| |
| cell->value = expr; |
| |
| idLength = strlen(expr->Identifier); |
| if(row->max_identifier_length < idLength) |
| row->max_identifier_length = idLength; |
| |
| return 0; |
| } |
| |