Beispiel #1
0
asn_enc_rval_t
BIT_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) {
	asn_enc_rval_t er;
	char scratch[128];
	char *p = scratch;
	char *scend = scratch + (sizeof(scratch) - 10);
	const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
	int xcan = (flags & XER_F_CANONICAL);
	uint8_t *buf;
	uint8_t *end;

	if(!st || !st->buf)
		ASN__ENCODE_FAILED;

	er.encoded = 0;

	buf = st->buf;
	end = buf + st->size - 1;	/* Last byte is special */

	/*
	 * Binary dump
	 */
	for(; buf < end; buf++) {
		int v = *buf;
		int nline = xcan?0:(((buf - st->buf) % 8) == 0);
		if(p >= scend || nline) {
			er.encoded += p - scratch;
			ASN__CALLBACK(scratch, p - scratch);
			p = scratch;
			if(nline) ASN__TEXT_INDENT(1, ilevel);
		}
		memcpy(p + 0, _bit_pattern[v >> 4], 4);
		memcpy(p + 4, _bit_pattern[v & 0x0f], 4);
		p += 8;
	}

	if(!xcan && ((buf - st->buf) % 8) == 0)
		ASN__TEXT_INDENT(1, ilevel);
	er.encoded += p - scratch;
	ASN__CALLBACK(scratch, p - scratch);
	p = scratch;

	if(buf == end) {
		int v = *buf;
		int ubits = st->bits_unused;
		int i;
		for(i = 7; i >= ubits; i--)
			*p++ = (v & (1 << i)) ? 0x31 : 0x30;
		er.encoded += p - scratch;
		ASN__CALLBACK(scratch, p - scratch);
	}

	if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1);

	ASN__ENCODED_OK(er);
cb_failed:
	ASN__ENCODE_FAILED;
}
Beispiel #2
0
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) {
	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 && st->size))
		ASN__ENCODE_FAILED;

	er.encoded = 0;

	/*
	 * Dump the contents of the buffer in hexadecimal.
	 */
	buf = st->buf;
	end = buf + st->size;
	if(flags & XER_F_CANONICAL) {
		char *scend = scratch + (sizeof(scratch) - 2);
		for(; buf < end; buf++) {
			if(p >= scend) {
				ASN__CALLBACK(scratch, p - scratch);
				er.encoded += p - scratch;
				p = scratch;
			}
			*p++ = h2c[(*buf >> 4) & 0x0F];
			*p++ = h2c[*buf & 0x0F];
		}

		ASN__CALLBACK(scratch, p-scratch);	/* Dump the rest */
		er.encoded += p - scratch;
	} else {
Beispiel #3
0
asn_enc_rval_t
BOOLEAN_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) {
	const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
	asn_enc_rval_t er;

	(void)ilevel;
	(void)flags;

	if(!st) ASN__ENCODE_FAILED;

	if(*st) {
		ASN__CALLBACK("<true/>", 7);
		er.encoded = 7;
	} else {
		ASN__CALLBACK("<false/>", 8);
		er.encoded = 8;
	}

	ASN__ENCODED_OK(er);
cb_failed:
	ASN__ENCODE_FAILED;
}
Beispiel #4
0
asn_enc_rval_t
SET_OF_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) {
	asn_enc_rval_t er;
	asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics;
	asn_TYPE_member_t *elm = td->elements;
	asn_anonymous_set_ *list = _A_SET_FROM_VOID(sptr);
	const char *mname = specs->as_XMLValueList
		? 0 : ((*elm->name) ? elm->name : elm->type->xml_tag);
	size_t mlen = mname ? strlen(mname) : 0;
	int xcan = (flags & XER_F_CANONICAL);
	xer_tmp_enc_t *encs = 0;
	size_t encs_count = 0;
	void *original_app_key = app_key;
	asn_app_consume_bytes_f *original_cb = cb;
	int i;

	if(!sptr) ASN__ENCODE_FAILED;

	if(xcan) {
		encs = (xer_tmp_enc_t *)MALLOC(list->count * sizeof(encs[0]));
		if(!encs) ASN__ENCODE_FAILED;
		cb = SET_OF_encode_xer_callback;
	}

	er.encoded = 0;

	for(i = 0; i < list->count; i++) {
		asn_enc_rval_t tmper;

		void *memb_ptr = list->array[i];
		if(!memb_ptr) continue;

		if(encs) {
			memset(&encs[encs_count], 0, sizeof(encs[0]));
			app_key = &encs[encs_count];
			encs_count++;
		}

		if(mname) {
			if(!xcan) ASN__TEXT_INDENT(1, ilevel);
			ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
		}

		if(!xcan && specs->as_XMLValueList == 1)
			ASN__TEXT_INDENT(1, ilevel + 1);
		tmper = elm->type->xer_encoder(elm->type, memb_ptr,
				ilevel + (specs->as_XMLValueList != 2),
				flags, cb, app_key);
		if(tmper.encoded == -1) {
			td = tmper.failed_type;
			sptr = tmper.structure_ptr;
			goto cb_failed;
		}
		if(tmper.encoded == 0 && specs->as_XMLValueList) {
			const char *name = elm->type->xml_tag;
			size_t len = strlen(name);
			ASN__CALLBACK3("<", 1, name, len, "/>", 2);
		}

		if(mname) {
			ASN__CALLBACK3("</", 2, mname, mlen, ">", 1);
			er.encoded += 5;
		}

		er.encoded += (2 * mlen) + tmper.encoded;
	}

	if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1);

	if(encs) {
		xer_tmp_enc_t *enc = encs;
		xer_tmp_enc_t *end = encs + encs_count;
		ssize_t control_size = 0;

		cb = original_cb;
		app_key = original_app_key;
		qsort(encs, encs_count, sizeof(encs[0]), SET_OF_xer_order);

		for(; enc < end; enc++) {
			ASN__CALLBACK(enc->buffer, enc->offset);
			FREEMEM(enc->buffer);
			enc->buffer = 0;
			control_size += enc->offset;
		}
		assert(control_size == er.encoded);
	}

	goto cleanup;
cb_failed:
	er.encoded = -1;
	er.failed_type = td;
	er.structure_ptr = sptr;
cleanup:
	if(encs) {
		while(encs_count-- > 0) {
			if(encs[encs_count].buffer)
				FREEMEM(encs[encs_count].buffer);
		}
		FREEMEM(encs);
	}
	ASN__ENCODED_OK(er);
}
Beispiel #5
0
/*
 * Encode OCTET STRING type using DER.
 */
asn_enc_rval_t
OCTET_STRING_encode_der(asn_TYPE_descriptor_t *td, void *sptr,
	int tag_mode, ber_tlv_tag_t tag,
	asn_app_consume_bytes_f *cb, void *app_key) {
	asn_enc_rval_t er;
	asn_OCTET_STRING_specifics_t *specs = td->specifics
				? (asn_OCTET_STRING_specifics_t *)td->specifics
				: &asn_DEF_OCTET_STRING_specs;
	BIT_STRING_t *st = (BIT_STRING_t *)sptr;
	enum asn_OS_Subvariant type_variant = specs->subvariant;
	int fix_last_byte = 0;

	ASN_DEBUG("%s %s as OCTET STRING",
		cb?"Estimating":"Encoding", td->name);

	/*
	 * Write tags.
	 */
	if(type_variant != ASN_OSUBV_ANY || tag_mode == 1) {
		er.encoded = der_write_tags(td,
				(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;
			return er;
		}
	} else {
		/* Disallow: [<tag>] IMPLICIT ANY */
		assert(type_variant != ASN_OSUBV_ANY || tag_mode != -1);
		er.encoded = 0;
	}

	if(!cb) {
		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 == ASN_OSUBV_BIT) {
		uint8_t b = st->bits_unused & 0x07;
		if(b && st->size) fix_last_byte = 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);

	/* 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);
	}

	er.encoded += st->size;
	ASN__ENCODED_OK(er);
cb_failed:
	ASN__ENCODE_FAILED;
}