+++ /dev/null
-/*****************************************************************************
-# *
-# Copyright 2019 AT&T Intellectual Property *
-# *
-# Licensed under the Apache License, Version 2.0 (the "License"); *
-# you may not use this file except in compliance with the License. *
-# You may obtain a copy of the License at *
-# *
-# http://www.apache.org/licenses/LICENSE-2.0 *
-# *
-# Unless required by applicable law or agreed to in writing, software *
-# distributed under the License is distributed on an "AS IS" BASIS, *
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
-# See the License for the specific language governing permissions and *
-# limitations under the License. *
-# *
-******************************************************************************/
-
-/*-
- * Copyright (c) 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
- * All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-/*
- * Read the NativeInteger.h for the explanation wrt. differences between
- * INTEGER and NativeInteger.
- * Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
- * implementation deals with the standard (machine-specific) representation
- * of them instead of using the platform-independent buffer.
- */
-#include <asn_internal.h>
-#include <NativeInteger.h>
-
-/*
- * NativeInteger basic type description.
- */
-static const ber_tlv_tag_t asn_DEF_NativeInteger_tags[] = {
- (ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
-};
-asn_TYPE_operation_t asn_OP_NativeInteger = {
- NativeInteger_free,
- NativeInteger_print,
- NativeInteger_compare,
- NativeInteger_decode_ber,
- NativeInteger_encode_der,
- NativeInteger_decode_xer,
- NativeInteger_encode_xer,
-#ifdef ASN_DISABLE_OER_SUPPORT
- 0,
- 0,
-#else
- NativeInteger_decode_oer, /* OER decoder */
- NativeInteger_encode_oer, /* Canonical OER encoder */
-#endif /* ASN_DISABLE_OER_SUPPORT */
-#ifdef ASN_DISABLE_PER_SUPPORT
- 0,
- 0,
- 0,
- 0,
-#else
- NativeInteger_decode_uper, /* Unaligned PER decoder */
- NativeInteger_encode_uper, /* Unaligned PER encoder */
- NativeInteger_decode_aper, /* Aligned PER decoder */
- NativeInteger_encode_aper, /* Aligned PER encoder */
-#endif /* ASN_DISABLE_PER_SUPPORT */
- NativeInteger_random_fill,
- 0 /* Use generic outmost tag fetcher */
-};
-asn_TYPE_descriptor_t asn_DEF_NativeInteger = {
- "INTEGER", /* The ASN.1 type is still INTEGER */
- "INTEGER",
- &asn_OP_NativeInteger,
- asn_DEF_NativeInteger_tags,
- sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
- asn_DEF_NativeInteger_tags, /* Same as above */
- sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
- { 0, 0, asn_generic_no_constraint },
- 0, 0, /* No members */
- 0 /* No specifics */
-};
-
-/*
- * Decode INTEGER type.
- */
-asn_dec_rval_t
-NativeInteger_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **nint_ptr,
- const void *buf_ptr, size_t size, int tag_mode) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- long *native = (long *)*nint_ptr;
- asn_dec_rval_t rval;
- ber_tlv_len_t length;
-
- /*
- * If the structure is not there, allocate it.
- */
- if(native == NULL) {
- native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native)));
- if(native == NULL) {
- rval.code = RC_FAIL;
- rval.consumed = 0;
- return rval;
- }
- }
-
- ASN_DEBUG("Decoding %s as INTEGER (tm=%d)",
- td->name, tag_mode);
-
- /*
- * Check tags.
- */
- rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
- tag_mode, 0, &length, 0);
- if(rval.code != RC_OK)
- return rval;
-
- ASN_DEBUG("%s length is %d bytes", td->name, (int)length);
-
- /*
- * Make sure we have this length.
- */
- buf_ptr = ((const char *)buf_ptr) + rval.consumed;
- size -= rval.consumed;
- if(length > (ber_tlv_len_t)size) {
- rval.code = RC_WMORE;
- rval.consumed = 0;
- return rval;
- }
-
- /*
- * ASN.1 encoded INTEGER: buf_ptr, length
- * Fill the native, at the same time checking for overflow.
- * If overflow occured, return with RC_FAIL.
- */
- {
- INTEGER_t tmp;
- union {
- const void *constbuf;
- void *nonconstbuf;
- } unconst_buf;
- long l;
-
- unconst_buf.constbuf = buf_ptr;
- tmp.buf = (uint8_t *)unconst_buf.nonconstbuf;
- tmp.size = length;
-
- if((specs&&specs->field_unsigned)
- ? asn_INTEGER2ulong(&tmp, (unsigned long *)&l) /* sic */
- : asn_INTEGER2long(&tmp, &l)) {
- rval.code = RC_FAIL;
- rval.consumed = 0;
- return rval;
- }
-
- *native = l;
- }
-
- rval.code = RC_OK;
- rval.consumed += length;
-
- ASN_DEBUG("Took %ld/%ld bytes to encode %s (%ld)",
- (long)rval.consumed, (long)length, td->name, (long)*native);
-
- return rval;
-}
-
-/*
- * Encode the NativeInteger using the standard INTEGER type DER encoder.
- */
-asn_enc_rval_t
-NativeInteger_encode_der(const asn_TYPE_descriptor_t *sd, const void *ptr,
- int tag_mode, ber_tlv_tag_t tag,
- asn_app_consume_bytes_f *cb, void *app_key) {
- unsigned long native = *(const unsigned long *)ptr; /* Disable sign ext. */
- asn_enc_rval_t erval = {0,0,0};
- INTEGER_t tmp;
-
-#ifdef WORDS_BIGENDIAN /* Opportunistic optimization */
-
- tmp.buf = (uint8_t *)&native;
- tmp.size = sizeof(native);
-
-#else /* Works even if WORDS_BIGENDIAN is not set where should've been */
- uint8_t buf[sizeof(native)];
- uint8_t *p;
-
- /* Prepare a fake INTEGER */
- for(p = buf + sizeof(buf) - 1; p >= buf; p--, native >>= 8)
- *p = (uint8_t)native;
-
- tmp.buf = buf;
- tmp.size = sizeof(buf);
-#endif /* WORDS_BIGENDIAN */
-
- /* Encode fake INTEGER */
- erval = INTEGER_encode_der(sd, &tmp, tag_mode, tag, cb, app_key);
- if(erval.structure_ptr == &tmp) {
- erval.structure_ptr = ptr;
- }
- return erval;
-}
-
-/*
- * Decode the chunk of XML text encoding INTEGER.
- */
-asn_dec_rval_t
-NativeInteger_decode_xer(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **sptr,
- const char *opt_mname, const void *buf_ptr,
- size_t size) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- asn_dec_rval_t rval;
- INTEGER_t st;
- void *st_ptr = (void *)&st;
- long *native = (long *)*sptr;
-
- if(!native) {
- native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
- if(!native) ASN__DECODE_FAILED;
- }
-
- memset(&st, 0, sizeof(st));
- rval = INTEGER_decode_xer(opt_codec_ctx, td, &st_ptr,
- opt_mname, buf_ptr, size);
- if(rval.code == RC_OK) {
- long l;
- if((specs&&specs->field_unsigned)
- ? asn_INTEGER2ulong(&st, (unsigned long *)&l) /* sic */
- : asn_INTEGER2long(&st, &l)) {
- rval.code = RC_FAIL;
- rval.consumed = 0;
- } else {
- *native = l;
- }
- } else {
- /*
- * Cannot restart from the middle;
- * there is no place to save state in the native type.
- * Request a continuation from the very beginning.
- */
- rval.consumed = 0;
- }
- ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &st);
- return rval;
-}
-
-
-asn_enc_rval_t
-NativeInteger_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) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- char scratch[32]; /* Enough for 64-bit int */
- asn_enc_rval_t er = {0,0,0};
- const long *native = (const long *)sptr;
-
- (void)ilevel;
- (void)flags;
-
- if(!native) ASN__ENCODE_FAILED;
-
- er.encoded = snprintf(scratch, sizeof(scratch),
- (specs && specs->field_unsigned)
- ? "%lu" : "%ld", *native);
- if(er.encoded <= 0 || (size_t)er.encoded >= sizeof(scratch)
- || cb(scratch, er.encoded, app_key) < 0)
- ASN__ENCODE_FAILED;
-
- ASN__ENCODED_OK(er);
-}
-
-#ifndef ASN_DISABLE_PER_SUPPORT
-
-asn_dec_rval_t
-NativeInteger_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints, void **sptr,
- asn_per_data_t *pd) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- asn_dec_rval_t rval;
- long *native = (long *)*sptr;
- INTEGER_t tmpint;
- void *tmpintptr = &tmpint;
-
- (void)opt_codec_ctx;
- ASN_DEBUG("Decoding NativeInteger %s (UPER)", td->name);
-
- if(!native) {
- native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
- if(!native) ASN__DECODE_FAILED;
- }
-
- memset(&tmpint, 0, sizeof tmpint);
- rval = INTEGER_decode_uper(opt_codec_ctx, td, constraints,
- &tmpintptr, pd);
- if(rval.code == RC_OK) {
- if((specs&&specs->field_unsigned)
- ? asn_INTEGER2ulong(&tmpint, (unsigned long *)native)
- : asn_INTEGER2long(&tmpint, native))
- rval.code = RC_FAIL;
- else
- ASN_DEBUG("NativeInteger %s got value %ld",
- td->name, *native);
- }
- ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
-
- return rval;
-}
-
-asn_enc_rval_t
-NativeInteger_encode_uper(const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints,
- const void *sptr, asn_per_outp_t *po) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- asn_enc_rval_t er = {0,0,0};
- long native;
- INTEGER_t tmpint;
-
- if(!sptr) ASN__ENCODE_FAILED;
-
- native = *(const long *)sptr;
-
- ASN_DEBUG("Encoding NativeInteger %s %ld (UPER)", td->name, native);
-
- memset(&tmpint, 0, sizeof(tmpint));
- if((specs&&specs->field_unsigned)
- ? asn_ulong2INTEGER(&tmpint, native)
- : asn_long2INTEGER(&tmpint, native))
- ASN__ENCODE_FAILED;
- er = INTEGER_encode_uper(td, constraints, &tmpint, po);
- ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
- return er;
-}
-
-asn_dec_rval_t
-NativeInteger_decode_aper(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
-
- const asn_INTEGER_specifics_t *specs = (const asn_INTEGER_specifics_t *)td->specifics;
- asn_dec_rval_t rval;
- long *native = (long *)*sptr;
- INTEGER_t tmpint;
- void *tmpintptr = &tmpint;
-
- (void)opt_codec_ctx;
- ASN_DEBUG("Decoding NativeInteger %s (APER)", td->name);
-
- if(!native) {
- native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
- if(!native) ASN__DECODE_FAILED;
- }
-
- memset(&tmpint, 0, sizeof tmpint);
- rval = INTEGER_decode_aper(opt_codec_ctx, td, constraints,
- &tmpintptr, pd);
- if(rval.code == RC_OK) {
- if((specs&&specs->field_unsigned)
- ? asn_INTEGER2ulong(&tmpint, (unsigned long *)native)
- : asn_INTEGER2long(&tmpint, native))
- rval.code = RC_FAIL;
- else
- ASN_DEBUG("NativeInteger %s got value %ld",
- td->name, *native);
- }
- ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
-
- return rval;
-}
-
-asn_enc_rval_t
-NativeInteger_encode_aper(const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints,
- const void *sptr, asn_per_outp_t *po) {
-
- const asn_INTEGER_specifics_t *specs = (const asn_INTEGER_specifics_t *)td->specifics;
- asn_enc_rval_t er = {0,0,0};
- long native;
- INTEGER_t tmpint;
-
- if(!sptr) ASN__ENCODE_FAILED;
-
- native = *(const long *)sptr;
-
- ASN_DEBUG("Encoding NativeInteger %s %ld (APER)", td->name, native);
-
- memset(&tmpint, 0, sizeof(tmpint));
- if((specs&&specs->field_unsigned)
- ? asn_ulong2INTEGER(&tmpint, (unsigned long)native)
- : asn_long2INTEGER(&tmpint, native))
- ASN__ENCODE_FAILED;
- er = INTEGER_encode_aper(td, constraints, &tmpint, po);
- ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
- return er;
-}
-
-#endif /* ASN_DISABLE_PER_SUPPORT */
-
-/*
- * INTEGER specific human-readable output.
- */
-int
-NativeInteger_print(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- const long *native = (const long *)sptr;
- char scratch[32]; /* Enough for 64-bit int */
- int ret;
-
- (void)td; /* Unused argument */
- (void)ilevel; /* Unused argument */
-
- if(native) {
- long value = *native;
- ret = snprintf(scratch, sizeof(scratch),
- (specs && specs->field_unsigned) ? "%lu" : "%ld", value);
- assert(ret > 0 && (size_t)ret < sizeof(scratch));
- if(cb(scratch, ret, app_key) < 0) return -1;
- if(specs && (value >= 0 || !specs->field_unsigned)) {
- const asn_INTEGER_enum_map_t *el =
- INTEGER_map_value2enum(specs, value);
- if(el) {
- if(cb(" (", 2, app_key) < 0) return -1;
- if(cb(el->enum_name, el->enum_len, app_key) < 0) return -1;
- if(cb(")", 1, app_key) < 0) return -1;
- }
- }
- return 0;
- } else {
- return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
- }
-}
-
-void
-NativeInteger_free(const asn_TYPE_descriptor_t *td, void *ptr,
- enum asn_struct_free_method method) {
- if(!td || !ptr)
- return;
-
- ASN_DEBUG("Freeing %s as INTEGER (%d, %p, Native)",
- td->name, method, ptr);
-
- switch(method) {
- case ASFM_FREE_EVERYTHING:
- FREEMEM(ptr);
- break;
- case ASFM_FREE_UNDERLYING:
- break;
- case ASFM_FREE_UNDERLYING_AND_RESET:
- memset(ptr, 0, sizeof(long));
- break;
- }
-}
-
-int
-NativeInteger_compare(const asn_TYPE_descriptor_t *td, const void *aptr, const void *bptr) {
- (void)td;
-
- if(aptr && bptr) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- if(specs && specs->field_unsigned) {
- const unsigned long *a = aptr;
- const unsigned long *b = bptr;
- if(*a < *b) {
- return -1;
- } else if(*a > *b) {
- return 1;
- } else {
- return 0;
- }
- } else {
- const long *a = aptr;
- const long *b = bptr;
- if(*a < *b) {
- return -1;
- } else if(*a > *b) {
- return 1;
- } else {
- return 0;
- }
- }
- } else if(!aptr) {
- return -1;
- } else {
- return 1;
- }
-}
-
-asn_random_fill_result_t
-NativeInteger_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
- const asn_encoding_constraints_t *constraints,
- size_t max_length) {
- const asn_INTEGER_specifics_t *specs =
- (const asn_INTEGER_specifics_t *)td->specifics;
- asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
- asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
- asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
- long *st = *sptr;
- const asn_INTEGER_enum_map_t *emap;
- size_t emap_len;
- intmax_t value;
- int find_inside_map;
-
- if(max_length == 0) return result_skipped;
-
- if(st == NULL) {
- st = (long *)CALLOC(1, sizeof(*st));
- if(st == NULL) {
- return result_failed;
- }
- }
-
- if(specs) {
- emap = specs->value2enum;
- emap_len = specs->map_count;
- if(specs->strict_enumeration) {
- find_inside_map = emap_len > 0;
- } else {
- find_inside_map = emap_len ? asn_random_between(0, 1) : 0;
- }
- } else {
- emap = 0;
- emap_len = 0;
- find_inside_map = 0;
- }
-
- if(find_inside_map) {
- assert(emap_len > 0);
- value = emap[asn_random_between(0, emap_len - 1)].nat_value;
- } else {
- const asn_per_constraints_t *ct;
-
- static const long variants[] = {
- -65536, -65535, -65534, -32769, -32768, -32767, -16385, -16384,
- -16383, -257, -256, -255, -254, -129, -128, -127,
- -126, -1, 0, 1, 126, 127, 128, 129,
- 254, 255, 256, 257, 16383, 16384, 16385, 32767,
- 32768, 32769, 65534, 65535, 65536, 65537};
- if(specs && specs->field_unsigned) {
- assert(variants[18] == 0);
- value = variants[asn_random_between(
- 18, sizeof(variants) / sizeof(variants[0]) - 1)];
- } else {
- value = variants[asn_random_between(
- 0, sizeof(variants) / sizeof(variants[0]) - 1)];
- }
-
- if(!constraints) constraints = &td->encoding_constraints;
- ct = constraints ? constraints->per_constraints : 0;
- if(ct && (ct->value.flags & APC_CONSTRAINED)) {
- if(value < ct->value.lower_bound || value > ct->value.upper_bound) {
- value = asn_random_between(ct->value.lower_bound,
- ct->value.upper_bound);
- }
- }
- }
-
- *sptr = st;
- *st = value;
- return result_ok;
-}
Code Review / sim / e2-interface.git / blobdiff