/*
* OCTET STRING basic type description.
*/
-static ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
+static const ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
(ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
};
-static asn_OCTET_STRING_specifics_t asn_DEF_OCTET_STRING_specs = {
+static const asn_OCTET_STRING_specifics_t asn_DEF_OCTET_STRING_specs = {
sizeof(OCTET_STRING_t),
offsetof(OCTET_STRING_t, _asn_ctx),
- 0
+ ASN_OSUBV_STR
};
-static asn_per_constraint_t asn_DEF_OCTET_STRING_constraint = {
- APC_SEMI_CONSTRAINED, -1, -1, 0, 0
+static const asn_per_constraints_t asn_DEF_OCTET_STRING_constraints = {
+ { APC_CONSTRAINED, 8, 8, 0, 255 },
+ { APC_SEMI_CONSTRAINED, -1, -1, 0, 0 },
+ 0, 0
};
asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
"OCTET STRING", /* Canonical name */
st->size = _es; \
} while(0)
-/*
- * Internal variant of the OCTET STRING.
- */
-typedef enum OS_type {
- _TT_GENERIC = 0, /* Just a random OCTET STRING */
- _TT_BIT_STRING = 1, /* BIT STRING type, a special case */
- _TT_ANY = 2 /* ANY type, a special case too */
-} OS_type_e;
-
/*
* The main reason why ASN.1 is still alive is that too much time and effort
* is necessary for learning it more or less adequately, thus creating a gut
struct _stack *stck; /* Expectations stack structure */
struct _stack_el *sel = 0; /* Stack element */
int tlv_constr;
- OS_type_e type_variant = (OS_type_e)specs->subvariant;
+ enum asn_OS_Subvariant type_variant = specs->subvariant;
ASN_DEBUG("Decoding %s as %s (frame %ld)",
td->name,
- (type_variant == _TT_GENERIC) ?
+ (type_variant == ASN_OSUBV_STR) ?
"OCTET STRING" : "OS-SpecialCase",
(long)size);
* Jump into stackless primitive decoding.
*/
_CH_PHASE(ctx, 3);
- if(type_variant == _TT_ANY && tag_mode != 1)
+ if(type_variant == ASN_OSUBV_ANY && tag_mode != 1)
APPEND(buf_ptr, rval.consumed);
ADVANCE(rval.consumed);
goto phase3;
ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls);
- if(type_variant == _TT_ANY
+ if(type_variant == ASN_OSUBV_ANY
&& (tag_mode != 1 || sel->cont_level))
APPEND("\0\0", 2);
* depending on ASN.1 type being decoded.
*/
switch(type_variant) {
- case _TT_BIT_STRING:
+ case ASN_OSUBV_BIT:
/* X.690: 8.6.4.1, NOTE 2 */
/* Fall through */
- case _TT_GENERIC:
+ case ASN_OSUBV_STR:
default:
if(sel) {
int level = sel->cont_level;
/* else, Fall through */
}
/* Fall through */
- case _TT_ANY:
+ case ASN_OSUBV_ANY:
expected_tag = tlv_tag;
break;
}
} else {
sel->left = tlv_len;
}
- if(type_variant == _TT_ANY
+ if(type_variant == ASN_OSUBV_ANY
&& (tag_mode != 1 || sel->cont_level))
APPEND(buf_ptr, tlvl);
sel->got += tlvl;
len = ((ber_tlv_len_t)size < sel->left)
? (ber_tlv_len_t)size : sel->left;
if(len > 0) {
- if(type_variant == _TT_BIT_STRING
+ if(type_variant == ASN_OSUBV_BIT
&& sel->bits_chopped == 0) {
/* Put the unused-bits-octet away */
st->bits_unused = *(const uint8_t *)buf_ptr;
if(size < (size_t)ctx->left) {
if(!size) RETURN(RC_WMORE);
- if(type_variant == _TT_BIT_STRING && !ctx->context) {
+ if(type_variant == ASN_OSUBV_BIT && !ctx->context) {
st->bits_unused = *(const uint8_t *)buf_ptr;
ctx->left--;
ADVANCE(1);
ADVANCE(size);
RETURN(RC_WMORE);
} else {
- if(type_variant == _TT_BIT_STRING
+ if(type_variant == ASN_OSUBV_BIT
&& !ctx->context && ctx->left) {
st->bits_unused = *(const uint8_t *)buf_ptr;
ctx->left--;
/*
* BIT STRING-specific processing.
*/
- if(type_variant == _TT_BIT_STRING && st->size) {
+ if(type_variant == ASN_OSUBV_BIT && st->size) {
/* Finalize BIT STRING: zero out unused bits. */
st->buf[st->size-1] &= 0xff << st->bits_unused;
}
ASN_DEBUG("Took %ld bytes to encode %s: [%s]:%ld",
(long)consumed_myself, td->name,
- (type_variant == _TT_GENERIC) ? (char *)st->buf : "<data>",
+ (type_variant == ASN_OSUBV_STR) ? (char *)st->buf : "<data>",
(long)st->size);
? (asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_DEF_OCTET_STRING_specs;
BIT_STRING_t *st = (BIT_STRING_t *)sptr;
- OS_type_e type_variant = (OS_type_e)specs->subvariant;
+ enum asn_OS_Subvariant type_variant = specs->subvariant;
int fix_last_byte = 0;
ASN_DEBUG("%s %s as OCTET STRING",
/*
* Write tags.
*/
- if(type_variant != _TT_ANY || tag_mode == 1) {
+ if(type_variant != ASN_OSUBV_ANY || tag_mode == 1) {
er.encoded = der_write_tags(td,
- (type_variant == _TT_BIT_STRING) + st->size,
- tag_mode, type_variant == _TT_ANY, tag, cb, app_key);
+ (type_variant == ASN_OSUBV_BIT) + st->size,
+ tag_mode, type_variant == ASN_OSUBV_ANY, tag,
+ cb, app_key);
if(er.encoded == -1) {
er.failed_type = td;
er.structure_ptr = sptr;
}
} else {
/* Disallow: [<tag>] IMPLICIT ANY */
- assert(type_variant != _TT_ANY || tag_mode != -1);
+ assert(type_variant != ASN_OSUBV_ANY || tag_mode != -1);
er.encoded = 0;
}
if(!cb) {
- er.encoded += (type_variant == _TT_BIT_STRING) + st->size;
- _ASN_ENCODED_OK(er);
+ er.encoded += (type_variant == ASN_OSUBV_BIT) + st->size;
+ ASN__ENCODED_OK(er);
}
/*
* Prepare to deal with the last octet of BIT STRING.
*/
- if(type_variant == _TT_BIT_STRING) {
+ if(type_variant == ASN_OSUBV_BIT) {
uint8_t b = st->bits_unused & 0x07;
if(b && st->size) fix_last_byte = 1;
- _ASN_CALLBACK(&b, 1);
+ ASN__CALLBACK(&b, 1);
er.encoded++;
}
/* Invoke callback for the main part of the buffer */
- _ASN_CALLBACK(st->buf, st->size - fix_last_byte);
+ ASN__CALLBACK(st->buf, st->size - fix_last_byte);
/* The last octet should be stripped off the unused bits */
if(fix_last_byte) {
uint8_t b = st->buf[st->size-1] & (0xff << st->bits_unused);
- _ASN_CALLBACK(&b, 1);
+ ASN__CALLBACK(&b, 1);
}
er.encoded += st->size;
- _ASN_ENCODED_OK(er);
+ ASN__ENCODED_OK(er);
cb_failed:
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
}
asn_enc_rval_t
OCTET_STRING_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
- static const char *h2c = "0123456789ABCDEF";
+ const char * const h2c = "0123456789ABCDEF";
const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
asn_enc_rval_t er;
char scratch[16 * 3 + 4];
char *p = scratch;
uint8_t *buf;
uint8_t *end;
+ size_t i;
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
+ if(!st || (!st->buf && st->size))
+ ASN__ENCODE_FAILED;
er.encoded = 0;
char *scend = scratch + (sizeof(scratch) - 2);
for(; buf < end; buf++) {
if(p >= scend) {
- _ASN_CALLBACK(scratch, p - scratch);
+ ASN__CALLBACK(scratch, p - scratch);
er.encoded += p - scratch;
p = scratch;
}
*p++ = h2c[*buf & 0x0F];
}
- _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */
+ ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
er.encoded += p - scratch;
} else {
- size_t i;
for(i = 0; buf < end; buf++, i++) {
if(!(i % 16) && (i || st->size > 16)) {
- _ASN_CALLBACK(scratch, p-scratch);
+ ASN__CALLBACK(scratch, p-scratch);
er.encoded += (p-scratch);
p = scratch;
- _i_ASN_TEXT_INDENT(1, ilevel);
+ ASN__TEXT_INDENT(1, ilevel);
}
*p++ = h2c[(*buf >> 4) & 0x0F];
*p++ = h2c[*buf & 0x0F];
}
if(p - scratch) {
p--; /* Remove the tail space */
- _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */
+ ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
er.encoded += p - scratch;
if(st->size > 16)
- _i_ASN_TEXT_INDENT(1, ilevel-1);
+ ASN__TEXT_INDENT(1, ilevel-1);
}
}
- _ASN_ENCODED_OK(er);
+ ASN__ENCODED_OK(er);
cb_failed:
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
}
-static struct OCTET_STRING__xer_escape_table_s {
- char *string;
+static const struct OCTET_STRING__xer_escape_table_s {
+ const char *string;
int size;
} OCTET_STRING__xer_escape_table[] = {
#define OSXET(s) { s, sizeof(s) - 1 }
* nested table lookups).
*/
for(i = 0; i < 32 /* Don't spend time on the bottom half */; i++) {
- struct OCTET_STRING__xer_escape_table_s *el;
+ const struct OCTET_STRING__xer_escape_table_s *el;
el = &OCTET_STRING__xer_escape_table[i];
if(el->size == size && memcmp(buf, el->string, size) == 0)
return i;
(void)ilevel; /* Unused argument */
(void)flags; /* Unused argument */
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
+ if(!st || (!st->buf && st->size))
+ ASN__ENCODE_FAILED;
buf = st->buf;
end = buf + st->size;
if(((buf - ss) && cb(ss, buf - ss, app_key) < 0)
|| cb(OCTET_STRING__xer_escape_table[ch].string, s_len,
app_key) < 0)
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
encoded_len += (buf - ss) + s_len;
ss = buf + 1;
}
encoded_len += (buf - ss);
if((buf - ss) && cb(ss, buf - ss, app_key) < 0)
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
er.encoded = encoded_len;
- _ASN_ENCODED_OK(er);
+ ASN__ENCODED_OK(er);
}
/*
OCTET_STRING__convert_entrefs);
}
+static 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, 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) {
+ int code = per_get_few_bits(po, unit_bits);
+ int 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;
+}
+
+static 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, 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, *buf, lb, ub + lb);
+ return -1;
+ }
+ if(per_put_few_bits(po, ch, unit_bits))
+ return -1;
+ }
+
+ return 0;
+}
+
asn_dec_rval_t
OCTET_STRING_decode_uper(asn_codec_ctx_t *opt_codec_ctx,
asn_TYPE_descriptor_t *td, asn_per_constraints_t *constraints,
asn_OCTET_STRING_specifics_t *specs = td->specifics
? (asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_DEF_OCTET_STRING_specs;
- asn_per_constraint_t *ct = constraints ? &constraints->size
- : (td->per_constraints
- ? &td->per_constraints->size
- : &asn_DEF_OCTET_STRING_constraint);
+ asn_per_constraints_t *pc = constraints ? constraints
+ : td->per_constraints;
+ asn_per_constraint_t *cval;
+ asn_per_constraint_t *csiz;
asn_dec_rval_t rval = { RC_OK, 0 };
BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
ssize_t consumed_myself = 0;
int repeat;
- int unit_bits = (specs->subvariant != 1) * 7 + 1;
+ enum {
+ OS__BPC_BIT = 0,
+ OS__BPC_CHAR = 1,
+ OS__BPC_U16 = 2,
+ OS__BPC_U32 = 4
+ } bpc; /* Bytes per character */
+ unsigned int unit_bits;
+ unsigned int canonical_unit_bits;
(void)opt_codec_ctx;
+ if(pc) {
+ cval = &pc->value;
+ csiz = &pc->size;
+ } else {
+ cval = &asn_DEF_OCTET_STRING_constraints.value;
+ csiz = &asn_DEF_OCTET_STRING_constraints.size;
+ }
+
+ switch(specs->subvariant) {
+ default:
+ case ASN_OSUBV_ANY:
+ ASN_DEBUG("Unrecognized subvariant %d", specs->subvariant);
+ RETURN(RC_FAIL);
+ case ASN_OSUBV_BIT:
+ canonical_unit_bits = unit_bits = 1;
+ bpc = OS__BPC_BIT;
+ break;
+ case ASN_OSUBV_STR:
+ canonical_unit_bits = unit_bits = 8;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_CHAR;
+ break;
+ case ASN_OSUBV_U16:
+ canonical_unit_bits = unit_bits = 16;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_U16;
+ break;
+ case ASN_OSUBV_U32:
+ canonical_unit_bits = unit_bits = 32;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_U32;
+ break;
+ }
+
/*
* Allocate the string.
*/
if(!st) RETURN(RC_FAIL);
}
- ASN_DEBUG("PER Decoding %s %ld .. %ld bits %d",
- ct->flags & APC_EXTENSIBLE ? "extensible" : "fixed",
- ct->lower_bound, ct->upper_bound, ct->effective_bits);
+ ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
+ csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
+ csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
- if(ct->flags & APC_EXTENSIBLE) {
+ if(csiz->flags & APC_EXTENSIBLE) {
int inext = per_get_few_bits(pd, 1);
if(inext < 0) RETURN(RC_WMORE);
- if(inext) ct = &asn_DEF_OCTET_STRING_constraint;
- consumed_myself = 0;
+ if(inext) {
+ csiz = &asn_DEF_OCTET_STRING_constraints.size;
+ cval = &asn_DEF_OCTET_STRING_constraints.value;
+ unit_bits = canonical_unit_bits;
+ }
}
- if(ct->effective_bits >= 0
- && (!st->buf || st->size < ct->upper_bound)) {
+ if(csiz->effective_bits >= 0) {
FREEMEM(st->buf);
- if(unit_bits == 1) {
- st->size = (ct->upper_bound + 7) >> 3;
+ if(bpc) {
+ st->size = csiz->upper_bound * bpc;
} else {
- st->size = ct->upper_bound;
+ st->size = (csiz->upper_bound + 7) >> 3;
}
st->buf = (uint8_t *)MALLOC(st->size + 1);
if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
/* X.691, #16.5: zero-length encoding */
/* X.691, #16.6: short fixed length encoding (up to 2 octets) */
/* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(ct->effective_bits == 0) {
- int ret = per_get_many_bits(pd, st->buf, 0,
- unit_bits * ct->upper_bound);
+ if(csiz->effective_bits == 0) {
+ int ret;
+ if(bpc) {
+ ASN_DEBUG("Encoding OCTET STRING size %ld",
+ csiz->upper_bound);
+ ret = OCTET_STRING_per_get_characters(pd, st->buf,
+ csiz->upper_bound, bpc, unit_bits,
+ cval->lower_bound, cval->upper_bound, pc);
+ if(ret > 0) RETURN(RC_FAIL);
+ } else {
+ ASN_DEBUG("Encoding BIT STRING size %ld",
+ csiz->upper_bound);
+ ret = per_get_many_bits(pd, st->buf, 0,
+ unit_bits * csiz->upper_bound);
+ }
if(ret < 0) RETURN(RC_WMORE);
- consumed_myself += unit_bits * ct->upper_bound;
+ consumed_myself += unit_bits * csiz->upper_bound;
st->buf[st->size] = 0;
- if(unit_bits == 1 && (ct->upper_bound & 0x7))
- st->bits_unused = 8 - (ct->upper_bound & 0x7);
+ if(bpc == 0) {
+ int ubs = (csiz->upper_bound & 0x7);
+ st->bits_unused = ubs ? 8 - ubs : 0;
+ }
RETURN(RC_OK);
}
st->size = 0;
do {
+ ssize_t raw_len;
ssize_t len_bytes;
ssize_t len_bits;
void *p;
int ret;
/* Get the PER length */
- len_bits = uper_get_length(pd, ct->effective_bits, &repeat);
- if(len_bits < 0) RETURN(RC_WMORE);
- len_bits += ct->lower_bound;
+ raw_len = uper_get_length(pd, csiz->effective_bits, &repeat);
+ if(raw_len < 0) RETURN(RC_WMORE);
+ raw_len += csiz->lower_bound;
ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
- (long)ct->effective_bits, (long)len_bits,
+ (long)csiz->effective_bits, (long)raw_len,
repeat ? "repeat" : "once", td->name);
- if(unit_bits == 1) {
+ if(bpc) {
+ len_bytes = raw_len * bpc;
+ len_bits = len_bytes * unit_bits;
+ } else {
+ len_bits = raw_len;
len_bytes = (len_bits + 7) >> 3;
if(len_bits & 0x7)
st->bits_unused = 8 - (len_bits & 0x7);
/* len_bits be multiple of 16K if repeat is set */
- } else {
- len_bytes = len_bits;
- len_bits = len_bytes << 3;
}
p = REALLOC(st->buf, st->size + len_bytes + 1);
if(!p) RETURN(RC_FAIL);
st->buf = (uint8_t *)p;
- ret = per_get_many_bits(pd, &st->buf[st->size], 0, len_bits);
+ if(bpc) {
+ ret = OCTET_STRING_per_get_characters(pd,
+ &st->buf[st->size], raw_len, bpc, unit_bits,
+ cval->lower_bound, cval->upper_bound, pc);
+ if(ret > 0) RETURN(RC_FAIL);
+ } else {
+ ret = per_get_many_bits(pd, &st->buf[st->size],
+ 0, len_bits);
+ }
if(ret < 0) RETURN(RC_WMORE);
st->size += len_bytes;
} while(repeat);
asn_OCTET_STRING_specifics_t *specs = td->specifics
? (asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_DEF_OCTET_STRING_specs;
- asn_per_constraint_t *ct = constraints ? &constraints->size
- : (td->per_constraints
- ? &td->per_constraints->size
- : &asn_DEF_OCTET_STRING_constraint);
+ asn_per_constraints_t *pc = constraints ? constraints
+ : td->per_constraints;
+ asn_per_constraint_t *cval;
+ asn_per_constraint_t *csiz;
const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
- int unit_bits = (specs->subvariant != 1) * 7 + 1;
- asn_enc_rval_t er;
- int ct_extensible = ct->flags & APC_EXTENSIBLE;
+ asn_enc_rval_t er = { 0, 0, 0 };
int inext = 0; /* Lies not within extension root */
- int sizeinunits = 0;
+ unsigned int unit_bits;
+ unsigned int canonical_unit_bits;
+ unsigned int sizeinunits;
const uint8_t *buf;
int ret;
-
- if(!st || !st->buf)
- _ASN_ENCODE_FAILED;
- sizeinunits = st->size;
-
- if(unit_bits == 1) {
+ enum {
+ OS__BPC_BIT = 0,
+ OS__BPC_CHAR = 1,
+ OS__BPC_U16 = 2,
+ OS__BPC_U32 = 4
+ } bpc; /* Bytes per character */
+ int ct_extensible;
+
+ if(!st || (!st->buf && st->size))
+ ASN__ENCODE_FAILED;
+
+ if(pc) {
+ cval = &pc->value;
+ csiz = &pc->size;
+ } else {
+ cval = &asn_DEF_OCTET_STRING_constraints.value;
+ csiz = &asn_DEF_OCTET_STRING_constraints.size;
+ }
+ ct_extensible = csiz->flags & APC_EXTENSIBLE;
+
+ switch(specs->subvariant) {
+ default:
+ case ASN_OSUBV_ANY:
+ ASN__ENCODE_FAILED;
+ case ASN_OSUBV_BIT:
+ canonical_unit_bits = unit_bits = 1;
+ bpc = OS__BPC_BIT;
+ sizeinunits = st->size * 8 - (st->bits_unused & 0x07);
ASN_DEBUG("BIT STRING of %d bytes, %d bits unused",
sizeinunits, st->bits_unused);
- sizeinunits = sizeinunits * 8 - (st->bits_unused & 0x07);
+ break;
+ case ASN_OSUBV_STR:
+ canonical_unit_bits = unit_bits = 8;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_CHAR;
+ sizeinunits = st->size;
+ break;
+ case ASN_OSUBV_U16:
+ canonical_unit_bits = unit_bits = 16;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_U16;
+ sizeinunits = st->size / 2;
+ break;
+ case ASN_OSUBV_U32:
+ canonical_unit_bits = unit_bits = 32;
+ if(cval->flags & APC_CONSTRAINED)
+ unit_bits = cval->range_bits;
+ bpc = OS__BPC_U32;
+ sizeinunits = st->size / 4;
+ break;
}
ASN_DEBUG("Encoding %s into %d units of %d bits"
- " (%d..%d, effective %d)%s",
+ " (%ld..%ld, effective %d)%s",
td->name, sizeinunits, unit_bits,
- ct->lower_bound, ct->upper_bound,
- ct->effective_bits, ct_extensible ? " EXT" : "");
+ csiz->lower_bound, csiz->upper_bound,
+ csiz->effective_bits, ct_extensible ? " EXT" : "");
- /* Figure out wheter size lies within PER visible consrtaint */
+ /* Figure out whether size lies within PER visible constraint */
- if(ct->effective_bits >= 0) {
- if(sizeinunits < ct->lower_bound
- || sizeinunits > ct->upper_bound) {
+ if(csiz->effective_bits >= 0) {
+ if((int)sizeinunits < csiz->lower_bound
+ || (int)sizeinunits > csiz->upper_bound) {
if(ct_extensible) {
- ct = &asn_DEF_OCTET_STRING_constraint;
+ cval = &asn_DEF_OCTET_STRING_constraints.value;
+ csiz = &asn_DEF_OCTET_STRING_constraints.size;
+ unit_bits = canonical_unit_bits;
inext = 1;
} else
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
}
} else {
inext = 0;
if(ct_extensible) {
/* Declare whether length is [not] within extension root */
if(per_put_few_bits(po, inext, 1))
- _ASN_ENCODE_FAILED;
+ ASN__ENCODE_FAILED;
}
/* X.691, #16.5: zero-length encoding */
/* X.691, #16.6: short fixed length encoding (up to 2 octets) */
/* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(ct->effective_bits >= 0) {
+ if(csiz->effective_bits >= 0) {
ASN_DEBUG("Encoding %d bytes (%ld), length in %d bits",
- st->size, sizeinunits - ct->lower_bound,
- ct->effective_bits);
- ret = per_put_few_bits(po, sizeinunits - ct->lower_bound,
- ct->effective_bits);
- if(ret) _ASN_ENCODE_FAILED;
- ret = per_put_many_bits(po, st->buf, sizeinunits * unit_bits);
- if(ret) _ASN_ENCODE_FAILED;
- _ASN_ENCODED_OK(er);
+ st->size, sizeinunits - csiz->lower_bound,
+ csiz->effective_bits);
+ ret = per_put_few_bits(po, sizeinunits - csiz->lower_bound,
+ csiz->effective_bits);
+ if(ret) ASN__ENCODE_FAILED;
+ if(bpc) {
+ ret = OCTET_STRING_per_put_characters(po, st->buf,
+ sizeinunits, bpc, unit_bits,
+ cval->lower_bound, cval->upper_bound, pc);
+ } else {
+ ret = per_put_many_bits(po, st->buf,
+ sizeinunits * unit_bits);
+ }
+ if(ret) ASN__ENCODE_FAILED;
+ ASN__ENCODED_OK(er);
}
ASN_DEBUG("Encoding %d bytes", st->size);
if(sizeinunits == 0) {
if(uper_put_length(po, 0))
- _ASN_ENCODE_FAILED;
- _ASN_ENCODED_OK(er);
+ ASN__ENCODE_FAILED;
+ ASN__ENCODED_OK(er);
}
buf = st->buf;
while(sizeinunits) {
ssize_t maySave = uper_put_length(po, sizeinunits);
- if(maySave < 0) _ASN_ENCODE_FAILED;
+ if(maySave < 0) ASN__ENCODE_FAILED;
- ASN_DEBUG("Encoding %d of %d", maySave, sizeinunits);
+ ASN_DEBUG("Encoding %ld of %ld",
+ (long)maySave, (long)sizeinunits);
- ret = per_put_many_bits(po, buf, maySave * unit_bits);
- if(ret) _ASN_ENCODE_FAILED;
+ if(bpc) {
+ ret = OCTET_STRING_per_put_characters(po, buf,
+ maySave, bpc, unit_bits,
+ cval->lower_bound, cval->upper_bound, pc);
+ } else {
+ ret = per_put_many_bits(po, buf, maySave * unit_bits);
+ }
+ if(ret) ASN__ENCODE_FAILED;
- if(unit_bits == 1)
- buf += maySave >> 3;
+ if(bpc)
+ buf += maySave * bpc;
else
- buf += maySave;
+ buf += maySave >> 3;
sizeinunits -= maySave;
assert(!(maySave & 0x07) || !sizeinunits);
}
- _ASN_ENCODED_OK(er);
+ ASN__ENCODED_OK(er);
}
int
OCTET_STRING_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
asn_app_consume_bytes_f *cb, void *app_key) {
- static const char *h2c = "0123456789ABCDEF";
+ const char * const h2c = "0123456789ABCDEF";
const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
char scratch[16 * 3 + 4];
char *p = scratch;
(void)td; /* Unused argument */
- if(!st || !st->buf) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
+ if(!st || (!st->buf && st->size))
+ return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
/*
* Dump the contents of the buffer in hexadecimal.
(void)td; /* Unused argument */
(void)ilevel; /* Unused argument */
- if(st && st->buf) {
+ if(st && (st->buf || !st->size)) {
return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
} else {
return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
void
OCTET_STRING_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) {
OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- asn_OCTET_STRING_specifics_t *specs = td && td->specifics
- ? (asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_DEF_OCTET_STRING_specs;
- asn_struct_ctx_t *ctx = (asn_struct_ctx_t *)
- ((char *)st + specs->ctx_offset);
+ asn_OCTET_STRING_specifics_t *specs;
+ asn_struct_ctx_t *ctx;
struct _stack *stck;
if(!td || !st)
return;
+ specs = td->specifics
+ ? (asn_OCTET_STRING_specifics_t *)td->specifics
+ : &asn_DEF_OCTET_STRING_specs;
+ ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
+
ASN_DEBUG("Freeing %s as OCTET STRING", td->name);
if(st->buf) {
FREEMEM(st->buf);
+ st->buf = 0;
}
/*
git.stg.codes / stg.git / blobdiff