static upper size limit for PA-TNC messages

src/libpts/tcg/tcg_pts_attr_aik.c

@@ -117,6 +117,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	cred_encoding_type_t encoding_type = CERT_ASN1_DER;
 	chunk_t aik_blob;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	if (this->aik->get_type(this->aik) == CERT_TRUSTED_PUBKEY)
 	{
 		flags |= PTS_AIK_FLAGS_NAKED_KEY;

src/libpts/tcg/tcg_pts_attr_dh_nonce_finish.c

@@ -128,6 +128,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_DH_NONCE_FINISH_SIZE);
 	writer->write_uint8 (writer, PTS_DH_NONCE_FINISH_RESERVED);
 	writer->write_uint8 (writer, this->initiator_nonce.len);

src/libpts/tcg/tcg_pts_attr_dh_nonce_params_req.c

@@ -119,6 +119,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_DH_NONCE_PARAMS_REQ_SIZE);
 	writer->write_uint8 (writer, PTS_DH_NONCE_PARAMS_REQ_RESERVED);
 	writer->write_uint8 (writer, this->min_nonce_len);

src/libpts/tcg/tcg_pts_attr_dh_nonce_params_resp.c

@@ -135,6 +135,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_DH_NONCE_PARAMS_RESP_SIZE);
 	writer->write_uint24(writer, PTS_DH_NONCE_PARAMS_RESP_RESERVED);
 	writer->write_uint8 (writer, this->responder_nonce.len);

src/libpts/tcg/tcg_pts_attr_file_meas.c

@@ -135,6 +135,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	chunk_t measurement;
 	bool first = TRUE;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
 	number_of_files = this->measurements->get_file_count(this->measurements);
 	request_id = this->measurements->get_request_id(this->measurements);
 

src/libpts/tcg/tcg_pts_attr_gen_attest_evid.c

@@ -110,6 +110,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_GEN_ATTEST_EVID_SIZE);
 	writer->write_uint32 (writer, PTS_GEN_ATTEST_EVID_RESERVED);
 

src/libpts/tcg/tcg_pts_attr_get_aik.c

@@ -107,6 +107,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_GET_AIK_SIZE);
 	writer->write_uint32 (writer, PTS_GET_AIK_RESERVED);
 

src/libpts/tcg/tcg_pts_attr_get_tpm_version_info.c

@@ -110,6 +110,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_GET_TPM_VER_INFO_SIZE);
 	writer->write_uint32 (writer, PTS_GET_TPM_VER_INFO_RESERVED);
 

src/libpts/tcg/tcg_pts_attr_meas_algo.c

@@ -113,6 +113,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_MEAS_ALGO_SIZE);
 	writer->write_uint16(writer, PTS_MEAS_ALGO_RESERVED);
 	writer->write_uint16(writer, this->algorithms);

src/libpts/tcg/tcg_pts_attr_proto_caps.c

@@ -113,6 +113,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_PROTO_CAPS_SIZE);
 	writer->write_uint16(writer, PTS_PROTO_CAPS_RESERVED);
 	writer->write_uint16(writer, this->flags);

src/libpts/tcg/tcg_pts_attr_req_file_meas.c

@@ -136,6 +136,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	chunk_t pathname;
 	bio_writer_t *writer;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
 	if (this->directory_flag)
 	{
 		flags |= DIRECTORY_CONTENTS_FLAG;

src/libpts/tcg/tcg_pts_attr_req_file_meta.c

@@ -129,6 +129,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	chunk_t pathname;
 	bio_writer_t *writer;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
 	if (this->directory_flag)
 	{
 		flags |= DIRECTORY_CONTENTS_FLAG;

src/libpts/tcg/tcg_pts_attr_req_func_comp_evid.c

@@ -177,6 +177,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	enumerator_t *enumerator;
 	entry_t *entry;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_REQ_FUNC_COMP_EVID_SIZE);
 
 	enumerator = this->list->create_enumerator(this->list);

src/libpts/tcg/tcg_pts_attr_simple_comp_evid.c

@@ -195,6 +195,11 @@ METHOD(pa_tnc_attr_t, build, void,
 	time_t measurement_time;
 	chunk_t measurement, utc_time, pcr_before, pcr_after, policy_uri;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
+
 	/* Extract parameters from comp_evidence_t object */
 	name         = this->evidence->get_comp_func_name(this->evidence,
 							&depth);

src/libpts/tcg/tcg_pts_attr_simple_evid_final.c

@@ -169,6 +169,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	bio_writer_t *writer;
 	u_int8_t flags;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
 	flags = this->flags & PTS_SIMPLE_EVID_FINAL_FLAG_MASK;
 
 	if (this->has_evid_sig)

src/libpts/tcg/tcg_pts_attr_tpm_version_info.c

@@ -114,6 +114,10 @@ METHOD(pa_tnc_attr_t, build, void,
 {
 	bio_writer_t *writer;
 
+	if (this->value.ptr)
+	{
+		return;
+	}
 	writer = bio_writer_create(PTS_TPM_VER_INFO_SIZE);
 	writer->write_data(writer, this->tpm_version_info);
 

src/libpts/tcg/tcg_pts_attr_unix_file_meta.c

@@ -148,6 +148,10 @@ METHOD(pa_tnc_attr_t, build, void,
 	pts_file_metadata_t *entry;
 	u_int64_t number_of_files;
 	
+	if (this->value.ptr)
+	{
+		return;
+	}
 	number_of_files = this->metadata->get_file_count(this->metadata);
 	writer = bio_writer_create(PTS_FILE_META_SIZE);