+++ /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) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#include <asn_internal.h>
-#include <INTEGER.h>
-#include <OBJECT_IDENTIFIER.h>
-#include <OCTET_STRING.h>
-#include <limits.h> /* for CHAR_BIT */
-#include <errno.h>
-
-/*
- * OBJECT IDENTIFIER basic type description.
- */
-static const ber_tlv_tag_t asn_DEF_OBJECT_IDENTIFIER_tags[] = {
- (ASN_TAG_CLASS_UNIVERSAL | (6 << 2))
-};
-asn_TYPE_operation_t asn_OP_OBJECT_IDENTIFIER = {
- ASN__PRIMITIVE_TYPE_free,
- OBJECT_IDENTIFIER_print,
- OCTET_STRING_compare, /* Implemented in terms of a string comparison */
- ber_decode_primitive,
- der_encode_primitive,
- OBJECT_IDENTIFIER_decode_xer,
- OBJECT_IDENTIFIER_encode_xer,
-#ifdef ASN_DISABLE_OER_SUPPORT
- 0,
- 0,
-#else
- OBJECT_IDENTIFIER_decode_oer,
- OBJECT_IDENTIFIER_encode_oer,
-#endif /* ASN_DISABLE_OER_SUPPORT */
-#ifdef ASN_DISABLE_PER_SUPPORT
- 0,
- 0,
- 0,
- 0,
-#else
- OCTET_STRING_decode_uper,
- OCTET_STRING_encode_uper,
- OCTET_STRING_decode_aper,
- OCTET_STRING_encode_aper,
-#endif /* ASN_DISABLE_PER_SUPPORT */
- OBJECT_IDENTIFIER_random_fill,
- 0 /* Use generic outmost tag fetcher */
-};
-asn_TYPE_descriptor_t asn_DEF_OBJECT_IDENTIFIER = {
- "OBJECT IDENTIFIER",
- "OBJECT_IDENTIFIER",
- &asn_OP_OBJECT_IDENTIFIER,
- asn_DEF_OBJECT_IDENTIFIER_tags,
- sizeof(asn_DEF_OBJECT_IDENTIFIER_tags)
- / sizeof(asn_DEF_OBJECT_IDENTIFIER_tags[0]),
- asn_DEF_OBJECT_IDENTIFIER_tags, /* Same as above */
- sizeof(asn_DEF_OBJECT_IDENTIFIER_tags)
- / sizeof(asn_DEF_OBJECT_IDENTIFIER_tags[0]),
- { 0, 0, OBJECT_IDENTIFIER_constraint },
- 0, 0, /* No members */
- 0 /* No specifics */
-};
-
-int
-OBJECT_IDENTIFIER_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,
- asn_app_constraint_failed_f *ctfailcb,
- void *app_key) {
- const OBJECT_IDENTIFIER_t *st = (const OBJECT_IDENTIFIER_t *)sptr;
-
- if(st && st->buf) {
- if(st->size < 1) {
- ASN__CTFAIL(app_key, td, sptr,
- "%s: at least one numerical value "
- "expected (%s:%d)",
- td->name, __FILE__, __LINE__);
- return -1;
- }
- } else {
- ASN__CTFAIL(app_key, td, sptr,
- "%s: value not given (%s:%d)",
- td->name, __FILE__, __LINE__);
- return -1;
- }
-
- return 0;
-}
-
-static ssize_t
-OBJECT_IDENTIFIER_get_first_arcs(const uint8_t *arcbuf, size_t arcbuf_len,
- asn_oid_arc_t *arc0, asn_oid_arc_t *arc1) {
- asn_oid_arc_t value;
-
- ssize_t rd = OBJECT_IDENTIFIER_get_single_arc(arcbuf, arcbuf_len, &value);
- if(rd <= 0) return rd;
-
- if(value >= 80) {
- *arc0 = 2;
- *arc1 = value - 80;
- } else if(value >= 40) {
- *arc0 = 1;
- *arc1 = value - 40;
- } else {
- *arc0 = 0;
- *arc1 = value;
- }
-
- return rd;
-}
-
-ssize_t
-OBJECT_IDENTIFIER_get_single_arc(const uint8_t *arcbuf, size_t arcbuf_len,
- asn_oid_arc_t *ret_value) {
- const uint8_t *b = arcbuf;
- const uint8_t *arcend = arcbuf + arcbuf_len; /* End of arc */
-
- if(arcbuf == arcend) {
- return 0;
- } else {
- asn_oid_arc_t accum;
- asn_oid_arc_t upper_limit = (ASN_OID_ARC_MAX >> 7);
- /* When the value reaches "upper_limit", it can take */
- /* at most one more digit. If it exceeds "upper_limit" */
- /* but there are more digits - it's an Overflow condition */
- /* Gather all bits into the accumulator */
- for(accum = 0; b < arcend; b++) {
- accum = (accum << 7) | (*b & ~0x80);
- if((*b & 0x80) == 0) { // no more digits
- if(accum <= ASN_OID_ARC_MAX) {
- *ret_value = accum;
- return 1 + (b - arcbuf);
- } else {
- errno = ERANGE; /* Overflow */
- return -1;
- }
- } else { // to make sure we aren't wrapping around
- if(accum > upper_limit) {
- errno = ERANGE; /* Overflow */
- return -1;
- }
- }
- }
- errno = EINVAL;
- return -1;
- }
-
-}
-
-static ssize_t
-OBJECT_IDENTIFIER__dump_body(const OBJECT_IDENTIFIER_t *st,
- asn_app_consume_bytes_f *cb, void *app_key) {
- char scratch[32];
- asn_oid_arc_t arc0, arc1;
- size_t produced = 0;
- size_t off = 0;
- ssize_t rd;
- int ret;
-
- rd = OBJECT_IDENTIFIER_get_first_arcs(st->buf, st->size, &arc0, &arc1);
- if(rd <= 0) {
- return -1;
- }
-
- ret = snprintf(scratch, sizeof(scratch), "%"PRIu32".%"PRIu32, arc0, arc1);
- if(ret >= (ssize_t)sizeof(scratch)) {
- return -1;
- }
- produced += ret;
- if(cb(scratch, ret, app_key) < 0)
- return -1;
-
- for(off = rd; ; ) {
- asn_oid_arc_t arc;
- rd = OBJECT_IDENTIFIER_get_single_arc(st->buf + off, st->size - off,
- &arc);
- if(rd < 0) {
- return -1;
- } else if(rd == 0) {
- /* No more arcs. */
- break;
- } else {
- off += rd;
- assert(off <= st->size);
- ret = snprintf(scratch, sizeof(scratch), ".%" PRIu32, arc);
- if(ret >= (ssize_t)sizeof(scratch)) {
- return -1;
- }
- produced += ret;
- if(cb(scratch, ret, app_key) < 0) return -1;
- }
- }
-
- if(off != st->size) {
- ASN_DEBUG("Could not scan to the end of Object Identifier");
- return -1;
- }
-
- return produced;
-}
-
-static enum xer_pbd_rval
-OBJECT_IDENTIFIER__xer_body_decode(const asn_TYPE_descriptor_t *td, void *sptr,
- const void *chunk_buf, size_t chunk_size) {
- OBJECT_IDENTIFIER_t *st = (OBJECT_IDENTIFIER_t *)sptr;
- const char *chunk_end = (const char *)chunk_buf + chunk_size;
- const char *endptr;
- asn_oid_arc_t s_arcs[10];
- asn_oid_arc_t *arcs = s_arcs;
- ssize_t num_arcs;
- ssize_t ret;
-
- (void)td;
-
- num_arcs = OBJECT_IDENTIFIER_parse_arcs(
- (const char *)chunk_buf, chunk_size, arcs,
- sizeof(s_arcs) / sizeof(s_arcs[0]), &endptr);
- if(num_arcs < 0) {
- /* Expecting more than zero arcs */
- return XPBD_BROKEN_ENCODING;
- } else if(num_arcs == 0) {
- return XPBD_NOT_BODY_IGNORE;
- }
- assert(endptr == chunk_end);
-
- if((size_t)num_arcs > sizeof(s_arcs)/sizeof(s_arcs[0])) {
- arcs = (asn_oid_arc_t *)MALLOC(num_arcs * sizeof(asn_oid_arc_t));
- if(!arcs) return XPBD_SYSTEM_FAILURE;
- ret = OBJECT_IDENTIFIER_parse_arcs((const char *)chunk_buf, chunk_size,
- arcs, num_arcs, &endptr);
- if(ret != num_arcs)
- return XPBD_SYSTEM_FAILURE; /* assert?.. */
- }
-
- /*
- * Convert arcs into BER representation.
- */
- ret = OBJECT_IDENTIFIER_set_arcs(st, arcs, num_arcs);
- if(arcs != s_arcs) FREEMEM(arcs);
-
- return ret ? XPBD_SYSTEM_FAILURE : XPBD_BODY_CONSUMED;
-}
-
-asn_dec_rval_t
-OBJECT_IDENTIFIER_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) {
- return xer_decode_primitive(opt_codec_ctx, td,
- sptr, sizeof(OBJECT_IDENTIFIER_t), opt_mname,
- buf_ptr, size, OBJECT_IDENTIFIER__xer_body_decode);
-}
-
-asn_enc_rval_t
-OBJECT_IDENTIFIER_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 OBJECT_IDENTIFIER_t *st = (const OBJECT_IDENTIFIER_t *)sptr;
- asn_enc_rval_t er = {0,0,0};
-
- (void)ilevel;
- (void)flags;
-
- if(!st || !st->buf) {
- ASN__ENCODE_FAILED;
- }
-
- er.encoded = OBJECT_IDENTIFIER__dump_body(st, cb, app_key);
- if(er.encoded < 0) ASN__ENCODE_FAILED;
-
- ASN__ENCODED_OK(er);
-}
-
-int
-OBJECT_IDENTIFIER_print(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, asn_app_consume_bytes_f *cb,
- void *app_key) {
- const OBJECT_IDENTIFIER_t *st = (const OBJECT_IDENTIFIER_t *)sptr;
-
- (void)td; /* Unused argument */
- (void)ilevel; /* Unused argument */
-
- if(!st || !st->buf)
- return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
-
- /* Dump preamble */
- if(cb("{ ", 2, app_key) < 0)
- return -1;
-
- if(OBJECT_IDENTIFIER__dump_body(st, cb, app_key) < 0) {
- return -1;
- }
-
- return (cb(" }", 2, app_key) < 0) ? -1 : 0;
-}
-
-ssize_t
-OBJECT_IDENTIFIER_get_arcs(const OBJECT_IDENTIFIER_t *st, asn_oid_arc_t *arcs,
- size_t arc_slots) {
- asn_oid_arc_t arc0, arc1;
- size_t num_arcs = 0;
- size_t off;
- ssize_t rd;
-
- if(!st || !st->buf) {
- errno = EINVAL;
- return -1;
- }
-
- rd = OBJECT_IDENTIFIER_get_first_arcs(st->buf, st->size, &arc0, &arc1);
- if(rd <= 0) {
- return -1;
- }
- num_arcs = 2;
- switch(arc_slots) {
- default:
- case 2:
- arcs[1] = arc1;
- /* Fall through */
- case 1:
- arcs[0] = arc0;
- /* Fall through */
- case 0:
- break;
- }
-
- for(off = rd; ; ) {
- asn_oid_arc_t arc;
- rd = OBJECT_IDENTIFIER_get_single_arc(st->buf + off, st->size - off,
- &arc);
- if(rd < 0) {
- return -1;
- } else if(rd == 0) {
- /* No more arcs. */
- break;
- } else {
- off += rd;
- if(num_arcs < arc_slots) {
- arcs[num_arcs] = arc;
- }
- num_arcs++;
- }
- }
-
- if(off != st->size) {
- return -1;
- }
-
- return num_arcs;
-}
-
-
-/*
- * Save the single value as an object identifier arc.
- */
-ssize_t
-OBJECT_IDENTIFIER_set_single_arc(uint8_t *arcbuf, size_t arcbuf_len,
- asn_oid_arc_t value) {
- /*
- * The following conditions must hold:
- * assert(arcbuf);
- */
- uint8_t scratch[((sizeof(value) * CHAR_BIT + 6) / 7)];
- uint8_t *scratch_end = &scratch[sizeof(scratch)-1];
- uint8_t *b;
- size_t result_len;
- uint8_t mask;
-
- for(b = scratch_end, mask = 0; ; mask = 0x80, b--) {
- *b = mask | (value & 0x7f);
- value >>= 7;
- if(!value) {
- break;
- }
- }
-
- result_len = (scratch_end - b) + 1;
-
- if(result_len > arcbuf_len) {
- return -1;
- }
-
- memcpy(arcbuf, b, result_len);
-
- return result_len;
-}
-
-int
-OBJECT_IDENTIFIER_set_arcs(OBJECT_IDENTIFIER_t *st, const asn_oid_arc_t *arcs,
- size_t arc_slots) {
- uint8_t *buf;
- uint8_t *bp;
- ssize_t wrote;
- asn_oid_arc_t arc0;
- asn_oid_arc_t arc1;
- size_t size;
- size_t i;
-
- if(!st || !arcs || arc_slots < 2) {
- errno = EINVAL;
- return -1;
- }
-
- arc0 = arcs[0];
- arc1 = arcs[1];
-
- if(arc0 <= 1) {
- if(arc1 >= 40) {
- /* 8.19.4: At most 39 subsequent values (including 0) */
- errno = ERANGE;
- return -1;
- }
- } else if(arc0 == 2) {
- if(arc1 > ASN_OID_ARC_MAX - 80) {
- errno = ERANGE;
- return -1;
- }
- } else if(arc0 > 2) {
- /* 8.19.4: Only three values are allocated from the root node */
- errno = ERANGE;
- return -1;
- }
-
- /*
- * After above tests it is known that the value of arc0 is completely
- * trustworthy (0..2). However, the arc1's value is still meaningless.
- */
-
- /*
- * Roughly estimate the maximum size necessary to encode these arcs.
- * This estimation implicitly takes in account the following facts,
- * that cancel each other:
- * * the first two arcs are encoded in a single value.
- * * the first value may require more space (+1 byte)
- * * the value of the first arc which is in range (0..2)
- */
- size = ((sizeof(asn_oid_arc_t) * CHAR_BIT + 6) / 7) * arc_slots;
- bp = buf = (uint8_t *)MALLOC(size + 1);
- if(!buf) {
- /* ENOMEM */
- return -1;
- }
-
- wrote = OBJECT_IDENTIFIER_set_single_arc(bp, size, arc0 * 40 + arc1);
- if(wrote <= 0) {
- FREEMEM(buf);
- return -1;
- }
- assert((size_t)wrote <= size);
- bp += wrote;
- size -= wrote;
-
- for(i = 2; i < arc_slots; i++) {
- wrote = OBJECT_IDENTIFIER_set_single_arc(bp, size, arcs[i]);
- if(wrote <= 0) {
- FREEMEM(buf);
- return -1;
- }
- assert((size_t)wrote <= size);
- bp += wrote;
- size -= wrote;
- }
-
- /*
- * Replace buffer.
- */
- st->size = bp - buf;
- bp = st->buf;
- st->buf = buf;
- st->buf[st->size] = '\0';
- if(bp) FREEMEM(bp);
-
- return 0;
-}
-
-ssize_t
-OBJECT_IDENTIFIER_parse_arcs(const char *oid_text, ssize_t oid_txt_length,
- asn_oid_arc_t *arcs, size_t arcs_count,
- const char **opt_oid_text_end) {
- size_t num_arcs = 0;
- const char *oid_end;
- enum {
- ST_LEADSPACE,
- ST_TAILSPACE,
- ST_AFTERVALUE, /* Next character ought to be '.' or a space */
- ST_WAITDIGITS /* Next character is expected to be a digit */
- } state = ST_LEADSPACE;
-
- if(!oid_text || oid_txt_length < -1 || (arcs_count && !arcs)) {
- if(opt_oid_text_end) *opt_oid_text_end = oid_text;
- errno = EINVAL;
- return -1;
- }
-
- if(oid_txt_length == -1)
- oid_txt_length = strlen(oid_text);
-
-#define _OID_CAPTURE_ARC(oid_text, oid_end) \
- do { \
- const char *endp = oid_end; \
- unsigned long value; \
- switch(asn_strtoul_lim(oid_text, &endp, &value)) { \
- case ASN_STRTOX_EXTRA_DATA: \
- case ASN_STRTOX_OK: \
- if(value <= ASN_OID_ARC_MAX) { \
- if(num_arcs < arcs_count) arcs[num_arcs] = value; \
- num_arcs++; \
- oid_text = endp - 1; \
- break; \
- } \
- /* Fall through */ \
- case ASN_STRTOX_ERROR_RANGE: \
- if(opt_oid_text_end) *opt_oid_text_end = oid_text; \
- errno = ERANGE; \
- return -1; \
- case ASN_STRTOX_ERROR_INVAL: \
- case ASN_STRTOX_EXPECT_MORE: \
- if(opt_oid_text_end) *opt_oid_text_end = oid_text; \
- errno = EINVAL; \
- return -1; \
- } \
- } while(0)
-
- for(oid_end = oid_text + oid_txt_length; oid_text<oid_end; oid_text++) {
- switch(*oid_text) {
- case 0x09: case 0x0a: case 0x0d: case 0x20: /* whitespace */
- switch(state) {
- case ST_LEADSPACE:
- case ST_TAILSPACE:
- continue;
- case ST_AFTERVALUE:
- state = ST_TAILSPACE;
- continue;
- case ST_WAITDIGITS:
- break; /* Digits expected after ".", got whitespace */
- }
- break;
- case 0x2e: /* '.' */
- switch(state) {
- case ST_LEADSPACE:
- case ST_TAILSPACE:
- case ST_WAITDIGITS:
- if(opt_oid_text_end)
- *opt_oid_text_end = oid_text;
- errno = EINVAL; /* Broken OID */
- return -1;
- break;
- case ST_AFTERVALUE:
- state = ST_WAITDIGITS;
- continue;
- }
- break;
- case 0x30: case 0x31: case 0x32: case 0x33: case 0x34:
- case 0x35: case 0x36: case 0x37: case 0x38: case 0x39:
- switch(state) {
- case ST_TAILSPACE:
- case ST_AFTERVALUE:
- if(opt_oid_text_end)
- *opt_oid_text_end = oid_text;
- errno = EINVAL; /* "1. 1" => broken OID */
- return -1;
- case ST_LEADSPACE:
- case ST_WAITDIGITS:
- _OID_CAPTURE_ARC(oid_text, oid_end);
- state = ST_AFTERVALUE;
- continue;
- }
- break;
- default:
- /* Unexpected symbols */
- state = ST_WAITDIGITS;
- break;
- } /* switch() */
- break;
- } /* for() */
-
-
- if(opt_oid_text_end) *opt_oid_text_end = oid_text;
-
- /* Finalize last arc */
- switch(state) {
- case ST_LEADSPACE:
- return 0; /* No OID found in input data */
- case ST_WAITDIGITS:
- errno = EINVAL; /* Broken OID */
- return -1;
- case ST_AFTERVALUE:
- case ST_TAILSPACE:
- return num_arcs;
- }
-
- errno = EINVAL; /* Broken OID */
- return -1;
-}
-
-/*
- * Generate values from the list of interesting values, or just a random
- * value up to the upper limit.
- */
-static asn_oid_arc_t
-OBJECT_IDENTIFIER__biased_random_arc(asn_oid_arc_t upper_bound) {
- const asn_oid_arc_t values[] = {0, 1, 127, 128, 129, 254, 255, 256};
- size_t idx;
-
- switch(asn_random_between(0, 2)) {
- case 0:
- idx = asn_random_between(0, sizeof(values) / sizeof(values[0]) - 1);
- if(values[idx] < upper_bound) {
- return values[idx];
- }
- /* Fall through */
- case 1:
- return asn_random_between(0, upper_bound);
- case 2:
- default:
- return upper_bound;
- }
-}
-
-asn_random_fill_result_t
-OBJECT_IDENTIFIER_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
- const asn_encoding_constraints_t *constraints,
- size_t max_length) {
- 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};
- OBJECT_IDENTIFIER_t *st;
- asn_oid_arc_t arcs[5];
- size_t arcs_len = asn_random_between(2, 5);
- size_t i;
-
- (void)constraints;
-
- if(max_length < arcs_len) return result_skipped;
-
- if(*sptr) {
- st = *sptr;
- } else {
- st = CALLOC(1, sizeof(*st));
- }
-
- arcs[0] = asn_random_between(0, 2);
- arcs[1] = OBJECT_IDENTIFIER__biased_random_arc(
- arcs[0] <= 1 ? 39 : (ASN_OID_ARC_MAX - 80));
- for(i = 2; i < arcs_len; i++) {
- arcs[i] = OBJECT_IDENTIFIER__biased_random_arc(ASN_OID_ARC_MAX);
- }
-
- if(OBJECT_IDENTIFIER_set_arcs(st, arcs, arcs_len)) {
- if(st != *sptr) {
- ASN_STRUCT_FREE(*td, st);
- }
- return result_failed;
- }
-
- *sptr = st;
-
- result_ok.length = st->size;
- return result_ok;
-}
Code Review / sim / e2-interface.git / blobdiff