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-rw-r--r--tests/libsqfs/Makemodule.am5
-rw-r--r--tests/libsqfs/xattr_writer.c321
2 files changed, 325 insertions, 1 deletions
diff --git a/tests/libsqfs/Makemodule.am b/tests/libsqfs/Makemodule.am
index cad473c..0ad19d9 100644
--- a/tests/libsqfs/Makemodule.am
+++ b/tests/libsqfs/Makemodule.am
@@ -4,8 +4,11 @@ test_abi_LDADD = libsquashfs.la
test_table_SOURCES = tests/libsqfs/table.c tests/test.h
test_table_LDADD = libsquashfs.la
+test_xattr_writer_SOURCES = tests/libsqfs/xattr_writer.c tests/test.h
+test_xattr_writer_LDADD = libsquashfs.la
+
LIBSQFS_TESTS = \
- test_abi test_table
+ test_abi test_table test_xattr_writer
check_PROGRAMS += $(LIBSQFS_TESTS)
TESTS += $(LIBSQFS_TESTS)
diff --git a/tests/libsqfs/xattr_writer.c b/tests/libsqfs/xattr_writer.c
new file mode 100644
index 0000000..d5252e3
--- /dev/null
+++ b/tests/libsqfs/xattr_writer.c
@@ -0,0 +1,321 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * xattr_writer.c
+ *
+ * Copyright (C) 2021 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+#include "../test.h"
+
+#include "sqfs/xattr_writer.h"
+#include "sqfs/compressor.h"
+#include "sqfs/xattr.h"
+#include "sqfs/error.h"
+#include "sqfs/super.h"
+#include "sqfs/io.h"
+
+static sqfs_u8 file_data[1024];
+static size_t file_used = 0;
+
+static int dummy_write_at(sqfs_file_t *file, sqfs_u64 offset,
+ const void *buffer, size_t size)
+{
+ (void)file;
+
+ if (offset >= sizeof(file_data))
+ return SQFS_ERROR_OUT_OF_BOUNDS;
+
+ if (size > (sizeof(file_data) - offset))
+ return SQFS_ERROR_OUT_OF_BOUNDS;
+
+ if (offset > file_used)
+ memset(file_data + file_used, 0, offset - file_used);
+
+ if ((offset + size) > file_used)
+ file_used = offset + size;
+
+ memcpy(file_data + offset, buffer, size);
+ return 0;
+}
+
+static sqfs_u64 dummy_get_size(const sqfs_file_t *file)
+{
+ (void)file;
+ return file_used;
+}
+
+static sqfs_s32 dummy_compress(sqfs_compressor_t *cmp, const sqfs_u8 *in,
+ sqfs_u32 size, sqfs_u8 *out, sqfs_u32 outsize)
+{
+ (void)cmp;
+ memcpy(out, in, outsize < size ? outsize : size);
+ return 0;
+}
+
+static sqfs_file_t dummy_file = {
+ { NULL, NULL },
+ NULL,
+ dummy_write_at,
+ dummy_get_size,
+ NULL,
+};
+
+static sqfs_compressor_t dummy_compressor = {
+ { NULL, NULL },
+ NULL,
+ NULL,
+ NULL,
+ dummy_compress,
+};
+
+/*****************************************************************************/
+
+int main(void)
+{
+ size_t offset, ool_value_offset, id_offset;
+ sqfs_xattr_id_table_t idtbl;
+ sqfs_xattr_writer_t *xwr;
+ sqfs_xattr_value_t value;
+ sqfs_xattr_entry_t key;
+ sqfs_xattr_id_t desc;
+ sqfs_super_t super;
+ char strbuf[32];
+ sqfs_u16 hdr;
+ sqfs_u64 ref;
+ sqfs_u32 id;
+ int ret;
+
+ /* setup */
+ xwr = sqfs_xattr_writer_create(0);
+ TEST_NOT_NULL(xwr);
+
+ /* record a block of key/value pairs */
+ ret = sqfs_xattr_writer_begin(xwr, 0);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "user.foobar", "test", 4);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "security.selinux", "Xwhatever", 9);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_end(xwr, &id);
+ TEST_EQUAL_I(ret, 0);
+ TEST_EQUAL_UI(id, 0);
+
+ /* record a second, different block */
+ ret = sqfs_xattr_writer_begin(xwr, 0);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "user.foobar", "bla", 3);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "security.selinux", "blub", 4);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_end(xwr, &id);
+ TEST_EQUAL_I(ret, 0);
+ TEST_EQUAL_UI(id, 1);
+
+ /* same as first block after sorting and gets the same ID */
+ ret = sqfs_xattr_writer_begin(xwr, 0);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "security.selinux", "Xwhatever", 9);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "user.foobar", "test", 4);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_end(xwr, &id);
+ TEST_EQUAL_I(ret, 0);
+ TEST_EQUAL_UI(id, 0);
+
+ /* the third assignment overwrites the first, making
+ the block identical to the second one */
+ ret = sqfs_xattr_writer_begin(xwr, 0);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "user.foobar", "mimimi", 6);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "security.selinux", "blub", 4);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "user.foobar", "bla", 3);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_end(xwr, &id);
+ TEST_EQUAL_I(ret, 0);
+ TEST_EQUAL_UI(id, 1);
+
+ /* add another block with the same value, so it gets stored OOL */
+ ret = sqfs_xattr_writer_begin(xwr, 0);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_add(xwr, "security.selinux", "Xwhatever", 9);
+ TEST_EQUAL_I(ret, 0);
+
+ ret = sqfs_xattr_writer_end(xwr, &id);
+ TEST_EQUAL_I(ret, 0);
+ TEST_EQUAL_UI(id, 2);
+
+ /* serialize */
+ sqfs_super_init(&super, 131072, 0, SQFS_COMP_GZIP);
+ ret = sqfs_xattr_writer_flush(xwr, &dummy_file, &super,
+ &dummy_compressor);
+ TEST_EQUAL_I(ret, 0);
+
+ TEST_EQUAL_UI(file_used, 177);
+
+ /* meta data block holding the key-value-pairs */
+ memcpy(&hdr, file_data, sizeof(hdr));
+ hdr = le16toh(hdr);
+ TEST_EQUAL_UI(hdr, (0x8000 | 101));
+ offset = 2;
+
+ memcpy(&key, file_data + offset, sizeof(key));
+ key.type = le16toh(key.type);
+ key.size = le16toh(key.size);
+ offset += sizeof(key);
+ TEST_EQUAL_UI(key.type, SQFS_XATTR_USER);
+ TEST_EQUAL_UI(key.size, 6);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, key.size);
+ TEST_STR_EQUAL(strbuf, "foobar");
+ offset += key.size;
+
+ memcpy(&value, file_data + offset, sizeof(value));
+ value.size = le32toh(value.size);
+ offset += sizeof(value);
+ TEST_EQUAL_UI(value.size, 4);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, value.size);
+ TEST_STR_EQUAL(strbuf, "test");
+ offset += value.size;
+
+ memcpy(&key, file_data + offset, sizeof(key));
+ key.type = le16toh(key.type);
+ key.size = le16toh(key.size);
+ offset += sizeof(key);
+ TEST_EQUAL_UI(key.type, SQFS_XATTR_SECURITY);
+ TEST_EQUAL_UI(key.size, 7);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, key.size);
+ TEST_STR_EQUAL(strbuf, "selinux");
+ offset += key.size;
+
+ ool_value_offset = offset;
+
+ memcpy(&value, file_data + offset, sizeof(value));
+ value.size = le32toh(value.size);
+ offset += sizeof(value);
+ TEST_EQUAL_UI(value.size, 9);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, value.size);
+ TEST_STR_EQUAL(strbuf, "Xwhatever");
+ offset += value.size;
+
+ memcpy(&key, file_data + offset, sizeof(key));
+ key.type = le16toh(key.type);
+ key.size = le16toh(key.size);
+ offset += sizeof(key);
+ TEST_EQUAL_UI(key.type, SQFS_XATTR_USER);
+ TEST_EQUAL_UI(key.size, 6);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, key.size);
+ TEST_STR_EQUAL(strbuf, "foobar");
+ offset += key.size;
+
+ memcpy(&value, file_data + offset, sizeof(value));
+ value.size = le32toh(value.size);
+ offset += sizeof(value);
+ TEST_EQUAL_UI(value.size, 3);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, value.size);
+ TEST_STR_EQUAL(strbuf, "bla");
+ offset += value.size;
+
+ memcpy(&key, file_data + offset, sizeof(key));
+ key.type = le16toh(key.type);
+ key.size = le16toh(key.size);
+ offset += sizeof(key);
+ TEST_EQUAL_UI(key.type, SQFS_XATTR_SECURITY);
+ TEST_EQUAL_UI(key.size, 7);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, key.size);
+ TEST_STR_EQUAL(strbuf, "selinux");
+ offset += key.size;
+
+ memcpy(&value, file_data + offset, sizeof(value));
+ value.size = le32toh(value.size);
+ offset += sizeof(value);
+ TEST_EQUAL_UI(value.size, 4);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, value.size);
+ TEST_STR_EQUAL(strbuf, "blub");
+ offset += value.size;
+
+ memcpy(&key, file_data + offset, sizeof(key));
+ key.type = le16toh(key.type);
+ key.size = le16toh(key.size);
+ offset += sizeof(key);
+ TEST_EQUAL_UI(key.type, (SQFS_XATTR_SECURITY | SQFS_XATTR_FLAG_OOL));
+ TEST_EQUAL_UI(key.size, 7);
+ memset(strbuf, '\0', sizeof(strbuf));
+ memcpy(strbuf, file_data + offset, key.size);
+ TEST_STR_EQUAL(strbuf, "selinux");
+ offset += key.size;
+
+ memcpy(&value, file_data + offset, sizeof(value));
+ value.size = le32toh(value.size);
+ offset += sizeof(value);
+ TEST_EQUAL_UI(value.size, 8);
+ memcpy(&ref, file_data + offset, sizeof(ref));
+ ref = le64toh(ref);
+ TEST_EQUAL_UI(ref, (ool_value_offset - 2));
+ offset += value.size;
+
+ /* meta data block holding the ID descriptions */
+ id_offset = offset;
+
+ memcpy(&hdr, file_data + offset, sizeof(hdr));
+ TEST_EQUAL_UI(le16toh(hdr), (0x8000 | (16 * 3)));
+ offset += sizeof(hdr);
+
+ memcpy(&desc, file_data + offset, sizeof(desc));
+ TEST_EQUAL_UI(le64toh(desc.xattr), 0);
+ TEST_EQUAL_UI(le32toh(desc.count), 2);
+ TEST_EQUAL_UI(le32toh(desc.size), 42);
+ offset += sizeof(desc);
+
+ memcpy(&desc, file_data + offset, sizeof(desc));
+ TEST_EQUAL_UI(le64toh(desc.xattr), 42);
+ TEST_EQUAL_UI(le32toh(desc.count), 2);
+ TEST_EQUAL_UI(le32toh(desc.size), 36);
+ offset += sizeof(desc);
+
+ memcpy(&desc, file_data + offset, sizeof(desc));
+ TEST_EQUAL_UI(le64toh(desc.xattr), 78);
+ TEST_EQUAL_UI(le32toh(desc.count), 1);
+ TEST_EQUAL_UI(le32toh(desc.size), 23);
+ offset += sizeof(desc);
+
+ /* the xattr table itself */
+ TEST_EQUAL_UI(super.xattr_id_table_start, offset);
+
+ memcpy(&idtbl, file_data + offset, sizeof(idtbl));
+ TEST_EQUAL_UI(le64toh(idtbl.xattr_table_start), 0);
+ TEST_EQUAL_UI(le32toh(idtbl.xattr_ids), 3);
+ offset += sizeof(idtbl);
+
+ memcpy(&ref, file_data + offset, sizeof(ref));
+ TEST_EQUAL_UI(le64toh(ref), id_offset);
+ offset += sizeof(ref);
+
+ TEST_EQUAL_UI(offset, file_used);
+
+ /* cleanup */
+ sqfs_destroy(xwr);
+ return EXIT_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 08:58:20 +0000