--- /dev/null
+/*-
+ * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <OCTET_STRING.h>
+#include <errno.h>
+
+/*
+ * OCTET STRING basic type description.
+ */
+static const ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
+};
+asn_OCTET_STRING_specifics_t asn_SPC_OCTET_STRING_specs = {
+ sizeof(OCTET_STRING_t),
+ offsetof(OCTET_STRING_t, _asn_ctx),
+ ASN_OSUBV_STR
+};
+asn_TYPE_operation_t asn_OP_OCTET_STRING = {
+ OCTET_STRING_free,
+#if !defined(ASN_DISABLE_PRINT_SUPPORT)
+ OCTET_STRING_print, /* OCTET STRING generally means a non-ascii sequence */
+#else
+ 0,
+#endif /* !defined(ASN_DISABLE_PRINT_SUPPORT) */
+ OCTET_STRING_compare,
+#if !defined(ASN_DISABLE_BER_SUPPORT)
+ OCTET_STRING_decode_ber,
+ OCTET_STRING_encode_der,
+#else
+ 0,
+ 0,
+#endif /* !defined(ASN_DISABLE_BER_SUPPORT) */
+#if !defined(ASN_DISABLE_XER_SUPPORT)
+ OCTET_STRING_decode_xer_hex,
+ OCTET_STRING_encode_xer,
+#else
+ 0,
+ 0,
+#endif /* !defined(ASN_DISABLE_XER_SUPPORT) */
+#if !defined(ASN_DISABLE_JER_SUPPORT)
+ OCTET_STRING_encode_jer,
+#else
+ 0,
+#endif /* !defined(ASN_DISABLE_JER_SUPPORT) */
+#if !defined(ASN_DISABLE_OER_SUPPORT)
+ OCTET_STRING_decode_oer,
+ OCTET_STRING_encode_oer,
+#else
+ 0,
+ 0,
+#endif /* !defined(ASN_DISABLE_OER_SUPPORT) */
+#if !defined(ASN_DISABLE_UPER_SUPPORT)
+ OCTET_STRING_decode_uper, /* Unaligned PER decoder */
+ OCTET_STRING_encode_uper, /* Unaligned PER encoder */
+#else
+ 0,
+ 0,
+#endif /* !defined(ASN_DISABLE_UPER_SUPPORT) */
+#if !defined(ASN_DISABLE_APER_SUPPORT)
+ OCTET_STRING_decode_aper, /* Aligned PER decoder */
+ OCTET_STRING_encode_aper, /* Aligned PER encoder */
+#else
+ 0,
+ 0,
+#endif /* !defined(ASN_DISABLE_APER_SUPPORT) */
+#if !defined(ASN_DISABLE_RFILL_SUPPORT)
+ OCTET_STRING_random_fill,
+#else
+ 0,
+#endif /* !defined(ASN_DISABLE_RFILL_SUPPORT) */
+ 0 /* Use generic outmost tag fetcher */
+};
+asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
+ "OCTET STRING", /* Canonical name */
+ "OCTET_STRING", /* XML tag name */
+ &asn_OP_OCTET_STRING,
+ asn_DEF_OCTET_STRING_tags,
+ sizeof(asn_DEF_OCTET_STRING_tags)
+ / sizeof(asn_DEF_OCTET_STRING_tags[0]),
+ asn_DEF_OCTET_STRING_tags, /* Same as above */
+ sizeof(asn_DEF_OCTET_STRING_tags)
+ / sizeof(asn_DEF_OCTET_STRING_tags[0]),
+ {
+#if !defined(ASN_DISABLE_OER_SUPPORT)
+ 0,
+#endif /* !defined(ASN_DISABLE_OER_SUPPORT) */
+#if !defined(ASN_DISABLE_UPER_SUPPORT) || !defined(ASN_DISABLE_APER_SUPPORT)
+ 0,
+#endif /* !defined(ASN_DISABLE_UPER_SUPPORT) || !defined(ASN_DISABLE_APER_SUPPORT) */
+ asn_generic_no_constraint
+ },
+ 0, 0, /* No members */
+ &asn_SPC_OCTET_STRING_specs
+};
+
+void
+OCTET_STRING_free(const asn_TYPE_descriptor_t *td, void *sptr,
+ enum asn_struct_free_method method) {
+ OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
+
+ if(!td || !st)
+ return;
+
+ ASN_DEBUG("Freeing %s as OCTET STRING", td->name);
+
+ if(st->buf) {
+ FREEMEM(st->buf);
+ st->buf = 0;
+ }
+
+#if !defined(ASN_DISABLE_BER_SUPPORT)
+ const asn_OCTET_STRING_specifics_t *specs;
+ asn_struct_ctx_t *ctx;
+
+ specs = td->specifics
+ ? (const asn_OCTET_STRING_specifics_t *)td->specifics
+ : &asn_SPC_OCTET_STRING_specs;
+ ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
+
+ /*
+ * Remove decode-time stack.
+ */
+ struct _stack *stck;
+ stck = (struct _stack *)ctx->ptr;
+ if(stck) {
+ while(stck->tail) {
+ struct _stack_el *sel = stck->tail;
+ stck->tail = sel->prev;
+ FREEMEM(sel);
+ }
+ FREEMEM(stck);
+ }
+#endif /* !defined(ASN_DISABLE_BER_SUPPORT) */
+
+ switch(method) {
+ case ASFM_FREE_EVERYTHING:
+ FREEMEM(sptr);
+ break;
+ case ASFM_FREE_UNDERLYING:
+ break;
+ case ASFM_FREE_UNDERLYING_AND_RESET:
+ memset(sptr, 0,
+ td->specifics
+ ? ((const asn_OCTET_STRING_specifics_t *)(td->specifics))
+ ->struct_size
+ : sizeof(OCTET_STRING_t));
+ break;
+ }
+}
+
+/*
+ * Conversion routines.
+ */
+int
+OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) {
+ void *buf;
+
+ if(st == 0 || (str == 0 && len)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /*
+ * Clear the OCTET STRING.
+ */
+ if(str == NULL) {
+ FREEMEM(st->buf);
+ st->buf = 0;
+ st->size = 0;
+ return 0;
+ }
+
+ /* Determine the original string size, if not explicitly given */
+ if(len < 0)
+ len = strlen(str);
+
+ /* Allocate and fill the memory */
+ buf = MALLOC(len + 1);
+ if(buf == NULL)
+ return -1;
+
+ memcpy(buf, str, len);
+ ((uint8_t *)buf)[len] = '\0'; /* Couldn't use memcpy(len+1)! */
+ FREEMEM(st->buf);
+ st->buf = (uint8_t *)buf;
+ st->size = len;
+
+ return 0;
+}
+
+OCTET_STRING_t *
+OCTET_STRING_new_fromBuf(const asn_TYPE_descriptor_t *td, const char *str,
+ int len) {
+ const asn_OCTET_STRING_specifics_t *specs =
+ td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
+ : &asn_SPC_OCTET_STRING_specs;
+ OCTET_STRING_t *st;
+
+ st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
+ if(st && str && OCTET_STRING_fromBuf(st, str, len)) {
+ FREEMEM(st);
+ st = NULL;
+ }
+
+ return st;
+}
+
+/*
+ * Lexicographically compare the common prefix of both strings,
+ * and if it is the same return -1 for the smallest string.
+ */
+int
+OCTET_STRING_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
+ const void *bptr) {
+ const asn_OCTET_STRING_specifics_t *specs = td->specifics;
+ const OCTET_STRING_t *a = aptr;
+ const OCTET_STRING_t *b = bptr;
+
+ (void)specs;
+ assert(!specs || specs->subvariant != ASN_OSUBV_BIT);
+
+ if(a && b) {
+ size_t common_prefix_size = a->size <= b->size ? a->size : b->size;
+ int ret = memcmp(a->buf, b->buf, common_prefix_size);
+ if(ret == 0) {
+ /* Figure out which string with equal prefixes is longer. */
+ if(a->size < b->size) {
+ return -1;
+ } else if(a->size > b->size) {
+ return 1;
+ } else {
+ return 0;
+ }
+ } else {
+ return ret < 0 ? -1 : 1;
+ }
+ } else if(!a && !b) {
+ return 0;
+ } else if(!a) {
+ return -1;
+ } else {
+ return 1;
+ }
+
+}
+
+#if !defined(ASN_DISABLE_UPER_SUPPORT) || !defined(ASN_DISABLE_APER_SUPPORT)
+int
+OCTET_STRING_per_get_characters(asn_per_data_t *po, uint8_t *buf,
+ size_t units, unsigned int bpc, unsigned int unit_bits,
+ long lb, long ub, const asn_per_constraints_t *pc) {
+ uint8_t *end = buf + units * bpc;
+
+ ASN_DEBUG("Expanding %d characters into (%ld..%ld):%d",
+ (int)units, lb, ub, unit_bits);
+
+ /* X.691: 27.5.4 */
+ if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
+ /* Decode without translation */
+ lb = 0;
+ } else if(pc && pc->code2value) {
+ if(unit_bits > 16)
+ return 1; /* FATAL: can't have constrained
+ * UniversalString with more than
+ * 16 million code points */
+ for(; buf < end; buf += bpc) {
+ int value;
+ int code = per_get_few_bits(po, unit_bits);
+ if(code < 0) return -1; /* WMORE */
+ value = pc->code2value(code);
+ if(value < 0) {
+ ASN_DEBUG("Code %d (0x%02x) is"
+ " not in map (%ld..%ld)",
+ code, code, lb, ub);
+ return 1; /* FATAL */
+ }
+ switch(bpc) {
+ case 1: *buf = value; break;
+ case 2: buf[0] = value >> 8; buf[1] = value; break;
+ case 4: buf[0] = value >> 24; buf[1] = value >> 16;
+ buf[2] = value >> 8; buf[3] = value; break;
+ }
+ }
+ return 0;
+ }
+
+ /* Shortcut the no-op copying to the aligned structure */
+ if(lb == 0 && (unit_bits == 8 * bpc)) {
+ return per_get_many_bits(po, buf, 0, unit_bits * units);
+ }
+
+ for(; buf < end; buf += bpc) {
+ int32_t code = per_get_few_bits(po, unit_bits);
+ int32_t ch = code + lb;
+ if(code < 0) return -1; /* WMORE */
+ if(ch > ub) {
+ ASN_DEBUG("Code %d is out of range (%ld..%ld)",
+ ch, lb, ub);
+ return 1; /* FATAL */
+ }
+ switch(bpc) {
+ case 1: *buf = ch; break;
+ case 2: buf[0] = ch >> 8; buf[1] = ch; break;
+ case 4: buf[0] = ch >> 24; buf[1] = ch >> 16;
+ buf[2] = ch >> 8; buf[3] = ch; break;
+ }
+ }
+
+ return 0;
+}
+
+int
+OCTET_STRING_per_put_characters(asn_per_outp_t *po, const uint8_t *buf,
+ size_t units, unsigned int bpc, unsigned int unit_bits,
+ long lb, long ub, const asn_per_constraints_t *pc) {
+ const uint8_t *end = buf + units * bpc;
+
+ ASN_DEBUG("Squeezing %d characters into (%ld..%ld):%d (%d bpc)",
+ (int)units, lb, ub, unit_bits, bpc);
+
+ /* X.691: 27.5.4 */
+ if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
+ /* Encode as is */
+ lb = 0;
+ } else if(pc && pc->value2code) {
+ for(; buf < end; buf += bpc) {
+ int code;
+ uint32_t value;
+ switch(bpc) {
+ case 1: value = *(const uint8_t *)buf; break;
+ case 2: value = (buf[0] << 8) | buf[1]; break;
+ case 4: value = (buf[0] << 24) | (buf[1] << 16)
+ | (buf[2] << 8) | buf[3]; break;
+ default: return -1;
+ }
+ code = pc->value2code(value);
+ if(code < 0) {
+ ASN_DEBUG("Character %d (0x%02x) is"
+ " not in map (%ld..%ld)",
+ *buf, *buf, lb, ub);
+ return -1;
+ }
+ if(per_put_few_bits(po, code, unit_bits))
+ return -1;
+ }
+ }
+
+ /* Shortcut the no-op copying to the aligned structure */
+ if(lb == 0 && (unit_bits == 8 * bpc)) {
+ return per_put_many_bits(po, buf, unit_bits * units);
+ }
+
+ for(ub -= lb; buf < end; buf += bpc) {
+ int ch;
+ uint32_t value;
+ switch(bpc) {
+ case 1:
+ value = *(const uint8_t *)buf;
+ break;
+ case 2:
+ value = (buf[0] << 8) | buf[1];
+ break;
+ case 4:
+ value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+ break;
+ default:
+ return -1;
+ }
+ ch = value - lb;
+ if(ch < 0 || ch > ub) {
+ ASN_DEBUG("Character %d (0x%02x) is out of range (%ld..%ld)", *buf,
+ value, lb, ub + lb);
+ return -1;
+ }
+ if(per_put_few_bits(po, ch, unit_bits)) return -1;
+ }
+
+ return 0;
+}
+#endif /* !defined(ASN_DISABLE_UPER_SUPPORT) || !defined(ASN_DISABLE_APER_SUPPORT) */
Code Review / sim / e2-interface.git / blobdiff