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Diffstat (limited to 'src/libpts/tcg/tcg_pts_attr_unix_file_meta.c')
-rw-r--r--src/libpts/tcg/tcg_pts_attr_unix_file_meta.c360
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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 14:10:12 +0000