--- /dev/null
+/*
+ * Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <OPEN_TYPE.h>
+#include <constr_CHOICE.h>
+#include <per_opentype.h>
+#include <errno.h>
+
+asn_TYPE_operation_t asn_OP_OPEN_TYPE = {
+ OPEN_TYPE_free,
+ OPEN_TYPE_print,
+ OPEN_TYPE_compare,
+ OPEN_TYPE_decode_ber,
+ OPEN_TYPE_encode_der,
+ OPEN_TYPE_decode_xer,
+ OPEN_TYPE_encode_xer,
+ 0, 0, /* No OER support, use "-gen-OER" to enable */
+#ifdef ASN_DISABLE_PER_SUPPORT
+ 0, 0,
+#else
+ OPEN_TYPE_decode_uper,
+ OPEN_TYPE_encode_uper,
+#endif
+ 0, /* Random fill is not supported for open type */
+ 0, /* Use generic outmost tag fetcher */
+};
+
+#undef ADVANCE
+#define ADVANCE(num_bytes) \
+ do { \
+ size_t num = num_bytes; \
+ ptr = ((const char *)ptr) + num; \
+ size -= num; \
+ consumed_myself += num; \
+ } while(0)
+
+asn_dec_rval_t
+OPEN_TYPE_ber_get(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td, void *sptr,
+ const asn_TYPE_member_t *elm, const void *ptr, size_t size) {
+ size_t consumed_myself = 0;
+ asn_type_selector_result_t selected;
+ void *memb_ptr; /* Pointer to the member */
+ void **memb_ptr2; /* Pointer to that pointer */
+ void *inner_value;
+ asn_dec_rval_t rv;
+
+ if(!(elm->flags & ATF_OPEN_TYPE)) {
+ ASN__DECODE_FAILED;
+ }
+
+ if(!elm->type_selector) {
+ ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
+ td->name, elm->name, elm->type->name);
+ ASN__DECODE_FAILED;
+ }
+
+ selected = elm->type_selector(td, sptr);
+ if(!selected.presence_index) {
+ ASN__DECODE_FAILED;
+ }
+
+ /* Fetch the pointer to this member */
+ if(elm->flags & ATF_POINTER) {
+ memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
+ } else {
+ memb_ptr = (char *)sptr + elm->memb_offset;
+ memb_ptr2 = &memb_ptr;
+ }
+ if(*memb_ptr2 != NULL) {
+ /* Make sure we reset the structure first before encoding */
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0) != 0) {
+ ASN__DECODE_FAILED;
+ }
+ }
+
+ inner_value =
+ (char *)*memb_ptr2
+ + elm->type->elements[selected.presence_index - 1].memb_offset;
+
+ ASN_DEBUG("presence %d\n", selected.presence_index);
+
+ rv = selected.type_descriptor->op->ber_decoder(
+ opt_codec_ctx, selected.type_descriptor, &inner_value, ptr, size,
+ elm->tag_mode);
+ ADVANCE(rv.consumed);
+ rv.consumed = 0;
+ switch(rv.code) {
+ case RC_OK:
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
+ selected.presence_index)
+ == 0) {
+ rv.code = RC_OK;
+ rv.consumed = consumed_myself;
+ return rv;
+ } else {
+ /* Oh, now a full-blown failure failure */
+ }
+ /* Fall through */
+ case RC_FAIL:
+ rv.consumed = consumed_myself;
+ /* Fall through */
+ case RC_WMORE:
+ break;
+ }
+
+ if(*memb_ptr2) {
+ const asn_CHOICE_specifics_t *specs =
+ selected.type_descriptor->specifics;
+ if(elm->flags & ATF_POINTER) {
+ ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
+ *memb_ptr2 = NULL;
+ } else {
+ ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
+ inner_value);
+ memset(*memb_ptr2, 0, specs->struct_size);
+ }
+ }
+ return rv;
+}
+
+asn_dec_rval_t
+OPEN_TYPE_xer_get(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td, void *sptr,
+ const asn_TYPE_member_t *elm, const void *ptr, size_t size) {
+ size_t consumed_myself = 0;
+ asn_type_selector_result_t selected;
+ void *memb_ptr; /* Pointer to the member */
+ void **memb_ptr2; /* Pointer to that pointer */
+ void *inner_value;
+ asn_dec_rval_t rv;
+
+ int xer_context = 0;
+ ssize_t ch_size;
+ pxer_chunk_type_e ch_type;
+
+ if(!(elm->flags & ATF_OPEN_TYPE)) {
+ ASN__DECODE_FAILED;
+ }
+
+ if(!elm->type_selector) {
+ ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
+ td->name, elm->name, elm->type->name);
+ ASN__DECODE_FAILED;
+ }
+
+ selected = elm->type_selector(td, sptr);
+ if(!selected.presence_index) {
+ ASN__DECODE_FAILED;
+ }
+
+ /* Fetch the pointer to this member */
+ assert(elm->flags == ATF_OPEN_TYPE);
+ if(elm->flags & ATF_POINTER) {
+ memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
+ } else {
+ memb_ptr = (char *)sptr + elm->memb_offset;
+ memb_ptr2 = &memb_ptr;
+ }
+ if(*memb_ptr2 != NULL) {
+ /* Make sure we reset the structure first before encoding */
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0)
+ != 0) {
+ ASN__DECODE_FAILED;
+ }
+ }
+
+ /*
+ * Confirm wrapper.
+ */
+ for(;;) {
+ ch_size = xer_next_token(&xer_context, ptr, size, &ch_type);
+ if(ch_size < 0) {
+ ASN__DECODE_FAILED;
+ } else {
+ switch(ch_type) {
+ case PXER_WMORE:
+ ASN__DECODE_STARVED;
+ case PXER_COMMENT:
+ case PXER_TEXT:
+ ADVANCE(ch_size);
+ continue;
+ case PXER_TAG:
+ break;
+ }
+ break;
+ }
+ }
+
+ /*
+ * Wrapper value confirmed.
+ */
+ switch(xer_check_tag(ptr, ch_size, elm->name)) {
+ case XCT_OPENING:
+ ADVANCE(ch_size);
+ break;
+ case XCT_BROKEN:
+ default:
+ ASN__DECODE_FAILED;
+ }
+
+ inner_value =
+ (char *)*memb_ptr2
+ + elm->type->elements[selected.presence_index - 1].memb_offset;
+
+ rv = selected.type_descriptor->op->xer_decoder(
+ opt_codec_ctx, selected.type_descriptor, &inner_value, NULL, ptr, size);
+ ADVANCE(rv.consumed);
+ rv.consumed = 0;
+ switch(rv.code) {
+ case RC_OK:
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
+ selected.presence_index)
+ == 0) {
+ break;
+ } else {
+ rv.code = RC_FAIL;
+ }
+ /* Fall through */
+ case RC_FAIL:
+ /* Point to a best position where failure occurred */
+ rv.consumed = consumed_myself;
+ /* Fall through */
+ case RC_WMORE:
+ /* Wrt. rv.consumed==0:
+ * In case a genuine RC_WMORE, the whole Open Type decoding
+ * will have to be restarted.
+ */
+ if(*memb_ptr2) {
+ const asn_CHOICE_specifics_t *specs =
+ selected.type_descriptor->specifics;
+ if(elm->flags & ATF_POINTER) {
+ ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
+ *memb_ptr2 = NULL;
+ } else {
+ ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
+ inner_value);
+ memset(*memb_ptr2, 0, specs->struct_size);
+ }
+ }
+ return rv;
+ }
+
+ /*
+ * Finalize wrapper.
+ */
+ for(;;) {
+ ch_size = xer_next_token(&xer_context, ptr, size, &ch_type);
+ if(ch_size < 0) {
+ ASN__DECODE_FAILED;
+ } else {
+ switch(ch_type) {
+ case PXER_WMORE:
+ ASN__DECODE_STARVED;
+ case PXER_COMMENT:
+ case PXER_TEXT:
+ ADVANCE(ch_size);
+ continue;
+ case PXER_TAG:
+ break;
+ }
+ break;
+ }
+ }
+
+ /*
+ * Wrapper value confirmed.
+ */
+ switch(xer_check_tag(ptr, ch_size, elm->name)) {
+ case XCT_CLOSING:
+ ADVANCE(ch_size);
+ break;
+ case XCT_BROKEN:
+ default:
+ ASN__DECODE_FAILED;
+ }
+
+ rv.consumed += consumed_myself;
+
+ return rv;
+}
+
+
+#ifndef ASN_DISABLE_PER_SUPPORT
+
+asn_dec_rval_t
+OPEN_TYPE_uper_get(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td, void *sptr,
+ const asn_TYPE_member_t *elm, asn_per_data_t *pd) {
+ asn_type_selector_result_t selected;
+ void *memb_ptr; /* Pointer to the member */
+ void **memb_ptr2; /* Pointer to that pointer */
+ void *inner_value;
+ asn_dec_rval_t rv;
+
+ if(!(elm->flags & ATF_OPEN_TYPE)) {
+ ASN__DECODE_FAILED;
+ }
+
+ if(!elm->type_selector) {
+ ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
+ td->name, elm->name, elm->type->name);
+ ASN__DECODE_FAILED;
+ }
+
+ selected = elm->type_selector(td, sptr);
+ if(!selected.presence_index) {
+ ASN__DECODE_FAILED;
+ }
+
+ /* Fetch the pointer to this member */
+ assert(elm->flags == ATF_OPEN_TYPE);
+ if(elm->flags & ATF_POINTER) {
+ memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
+ } else {
+ memb_ptr = (char *)sptr + elm->memb_offset;
+ memb_ptr2 = &memb_ptr;
+ }
+ if(*memb_ptr2 != NULL) {
+ /* Make sure we reset the structure first before encoding */
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0)
+ != 0) {
+ ASN__DECODE_FAILED;
+ }
+ }
+
+ inner_value =
+ (char *)*memb_ptr2
+ + elm->type->elements[selected.presence_index - 1].memb_offset;
+
+ rv = uper_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL,
+ &inner_value, pd);
+ switch(rv.code) {
+ case RC_OK:
+ if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
+ selected.presence_index)
+ == 0) {
+ break;
+ } else {
+ rv.code = RC_FAIL;
+ }
+ /* Fall through */
+ case RC_WMORE:
+ case RC_FAIL:
+ if(*memb_ptr2) {
+ const asn_CHOICE_specifics_t *specs =
+ selected.type_descriptor->specifics;
+ if(elm->flags & ATF_POINTER) {
+ ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
+ *memb_ptr2 = NULL;
+ } else {
+ ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
+ inner_value);
+ memset(*memb_ptr2, 0, specs->struct_size);
+ }
+ }
+ }
+ return rv;
+}
+
+asn_enc_rval_t
+OPEN_TYPE_encode_uper(const asn_TYPE_descriptor_t *td,
+ const asn_per_constraints_t *constraints,
+ const void *sptr, asn_per_outp_t *po) {
+ const void *memb_ptr; /* Pointer to the member */
+ asn_TYPE_member_t *elm; /* CHOICE's element */
+ asn_enc_rval_t er;
+ unsigned present;
+
+ (void)constraints;
+
+ present = CHOICE_variant_get_presence(td, sptr);
+ if(present == 0 || present > td->elements_count) {
+ ASN__ENCODE_FAILED;
+ } else {
+ present--;
+ }
+
+ ASN_DEBUG("Encoding %s OPEN TYPE element %d", td->name, present);
+
+ elm = &td->elements[present];
+ if(elm->flags & ATF_POINTER) {
+ /* Member is a pointer to another structure */
+ memb_ptr =
+ *(const void *const *)((const char *)sptr + elm->memb_offset);
+ if(!memb_ptr) ASN__ENCODE_FAILED;
+ } else {
+ memb_ptr = (const char *)sptr + elm->memb_offset;
+ }
+
+ if(uper_open_type_put(elm->type, NULL, memb_ptr, po) < 0) {
+ ASN__ENCODE_FAILED;
+ }
+
+ er.encoded = 0;
+ ASN__ENCODED_OK(er);
+}
+
+
+#endif /* ASN_DISABLE_PER_SUPPORT */
git.stg.codes / stg.git / blobdiff