Imported Upstream version 4.6.4

1 files changed, 360 insertions, 0 deletions

diff --git a/src/libpts/tcg/tcg_pts_attr_unix_file_meta.c b/src/libpts/tcg/tcg_pts_attr_unix_file_meta.c
new file mode 100644
index 000000000..a9f4a115d
--- /dev/null
+++ b/src/libpts/tcg/tcg_pts_attr_unix_file_meta.c
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2011 Sansar Choinyambuu
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "tcg_pts_attr_unix_file_meta.h"
+
+#include <pa_tnc/pa_tnc_msg.h>
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/linked_list.h>
+#include <debug.h>
+
+typedef struct private_tcg_pts_attr_file_meta_t private_tcg_pts_attr_file_meta_t;
+
+/**
+ * Unix-Style File Metadata
+ * see section 3.17.3 of PTS Protocol: Binding to TNC IF-M Specification
+ * 
+ *					   1				   2				   3
+ *   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |				   Number of Files included						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |				   Number of Files included						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |	File metadata Length	    |	 Type	    |	Reserved	|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |							File Size							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |							File Size							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Create Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Create Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						Last Modify Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						Last Modify Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						Last Access Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						Last Access Time						|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Owner ID							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Owner ID							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Group ID							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |						File Group ID							|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  ~					Filename (Variable Length)					~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *					 ...........................
+ */
+
+#define PTS_FILE_META_SIZE			8
+#define PTS_FILE_MEAS_RESERVED		0x00
+#define PTS_FILE_METADATA_SIZE		52
+
+/**
+ * Private data of an tcg_pts_attr_file_meta_t object.
+ */
+struct private_tcg_pts_attr_file_meta_t {
+
+	/**
+	 * Public members of tcg_pts_attr_file_meta_t
+	 */
+	tcg_pts_attr_file_meta_t public;
+
+	/**
+	 * Attribute vendor ID
+	 */
+	pen_t vendor_id;
+
+	/**
+	 * Attribute type
+	 */
+	u_int32_t type;
+
+	/**
+	 * Attribute value
+	 */
+	chunk_t value;
+	
+	/**
+	 * Noskip flag
+	 */
+	bool noskip_flag;
+	
+	/**
+	 * PTS File Metadata
+	 */
+	pts_file_meta_t *metadata;
+
+	/**
+	 * Reference count
+	 */
+	refcount_t ref;
+};
+
+METHOD(pa_tnc_attr_t, get_vendor_id, pen_t,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	return this->vendor_id;
+}
+
+METHOD(pa_tnc_attr_t, get_type, u_int32_t,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	return this->type;
+}
+
+METHOD(pa_tnc_attr_t, get_value, chunk_t,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	return this->value;
+}
+
+METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	return this->noskip_flag;
+}
+
+METHOD(pa_tnc_attr_t, set_noskip_flag,void,
+	private_tcg_pts_attr_file_meta_t *this, bool noskip)
+{
+	this->noskip_flag = noskip;
+}
+
+METHOD(pa_tnc_attr_t, build, void,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	bio_writer_t *writer;
+	enumerator_t *enumerator;
+	pts_file_metadata_t *entry;
+	u_int64_t number_of_files;
+	
+	number_of_files = this->metadata->get_file_count(this->metadata);
+	writer = bio_writer_create(PTS_FILE_META_SIZE);
+
+	writer->write_uint64(writer, number_of_files);
+
+	enumerator = this->metadata->create_enumerator(this->metadata);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		writer->write_uint16(writer, PTS_FILE_METADATA_SIZE +
+									 strlen(entry->filename));
+		writer->write_uint8 (writer, entry->type);
+		writer->write_uint8 (writer, PTS_FILE_MEAS_RESERVED);
+		writer->write_uint64(writer, entry->filesize);
+		writer->write_uint64(writer, entry->created);
+		writer->write_uint64(writer, entry->modified);
+		writer->write_uint64(writer, entry->accessed);
+		writer->write_uint64(writer, entry->owner);
+		writer->write_uint64(writer, entry->group);
+		writer->write_data  (writer, chunk_create(entry->filename,
+												  strlen(entry->filename)));
+	}
+	enumerator->destroy(enumerator);
+	
+	this->value = chunk_clone(writer->get_buf(writer));
+	writer->destroy(writer);
+}
+
+METHOD(pa_tnc_attr_t, process, status_t,
+	private_tcg_pts_attr_file_meta_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+	pts_file_metadata_t *entry;
+	u_int8_t type, reserved;
+	u_int16_t len;
+	u_int64_t number_of_files, filesize, created, modified, accessed;
+	u_int64_t owner, group;
+	chunk_t filename;
+	status_t status = FAILED;
+	
+	if (this->value.len < PTS_FILE_META_SIZE)
+	{
+		DBG1(DBG_TNC, "insufficient data for PTS Unix-Style file metadata header");
+		*offset = 0;
+		return FAILED;
+	}
+	reader = bio_reader_create(this->value);
+	reader->read_uint64(reader, &number_of_files);
+
+	this->metadata = pts_file_meta_create();
+	
+	while (number_of_files--)
+	{
+		if (!reader->read_uint16(reader, &len))
+		{
+			DBG1(DBG_TNC, "insufficient data for PTS file metadata length");
+			goto end;
+		}
+		if (!reader->read_uint8(reader, &type))
+		{
+			DBG1(DBG_TNC, "insufficient data for file type");
+			goto end;
+		}
+		if (!reader->read_uint8(reader, &reserved))
+		{
+			DBG1(DBG_TNC, "insufficient data for reserved field");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &filesize))
+		{
+			DBG1(DBG_TNC, "insufficient data for file size");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &created))
+		{
+			DBG1(DBG_TNC, "insufficient data for file create time");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &modified))
+		{
+			DBG1(DBG_TNC, "insufficient data for last modify time");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &accessed))
+		{
+			DBG1(DBG_TNC, "insufficient data for last access time");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &owner))
+		{
+			DBG1(DBG_TNC, "insufficient data for owner id");
+			goto end;
+		}
+		if (!reader->read_uint64(reader, &group))
+		{
+			DBG1(DBG_TNC, "insufficient data for group id");
+			goto end;
+		}
+		if (!reader->read_data(reader, len - PTS_FILE_METADATA_SIZE, &filename))
+		{
+			DBG1(DBG_TNC, "insufficient data for filename");
+			goto end;
+		}
+		
+		entry = malloc_thing(pts_file_metadata_t);
+		entry->type = type;
+		entry->filesize = filesize;
+		entry->created = created;
+		entry->modified = modified;
+		entry->accessed = accessed;
+		entry->owner = owner;
+		entry->group = group;
+		entry->filename = malloc(filename.len + 1);
+		entry->filename[filename.len] = '\0';
+		memcpy(entry->filename, filename.ptr, filename.len);
+
+		this->metadata->add(this->metadata, entry);
+	}
+	status = SUCCESS;
+
+end:
+	reader->destroy(reader);
+	return status;
+}
+
+METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	ref_get(&this->ref);
+	return &this->public.pa_tnc_attribute;
+}
+
+METHOD(pa_tnc_attr_t, destroy, void,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		this->metadata->destroy(this->metadata);
+		free(this->value.ptr);
+		free(this);
+	}
+}
+
+METHOD(tcg_pts_attr_file_meta_t, get_metadata, pts_file_meta_t*,
+	private_tcg_pts_attr_file_meta_t *this)
+{
+	return this->metadata;
+}
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *tcg_pts_attr_unix_file_meta_create(pts_file_meta_t *metadata)
+{
+	private_tcg_pts_attr_file_meta_t *this;
+
+	INIT(this,
+		.public = {
+			.pa_tnc_attribute = {
+				.get_vendor_id = _get_vendor_id,
+				.get_type = _get_type,
+				.get_value = _get_value,
+				.get_noskip_flag = _get_noskip_flag,
+				.set_noskip_flag = _set_noskip_flag,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.get_metadata = _get_metadata,
+		},
+		.vendor_id = PEN_TCG,
+		.type = TCG_PTS_UNIX_FILE_META,
+		.metadata = metadata,
+		.ref = 1,
+	);
+
+	return &this->public.pa_tnc_attribute;
+}
+
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *tcg_pts_attr_unix_file_meta_create_from_data(chunk_t data)
+{
+	private_tcg_pts_attr_file_meta_t *this;
+
+	INIT(this,
+		.public = {
+			.pa_tnc_attribute = {
+				.get_vendor_id = _get_vendor_id,
+				.get_type = _get_type,
+				.get_value = _get_value,
+				.get_noskip_flag = _get_noskip_flag,
+				.set_noskip_flag = _set_noskip_flag,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.get_metadata = _get_metadata,
+		},
+		.vendor_id = PEN_TCG,
+		.type = TCG_PTS_UNIX_FILE_META,
+		.value = chunk_clone(data),
+		.ref = 1,
+	);
+
+	return &this->public.pa_tnc_attribute;
+}