Imported Upstream version 16.07-rc1

Change-Id: I40a523e52f12e8496fdd69e902824b0226c303de
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 305 insertions, 0 deletions

diff --git a/app/test/resource.c b/app/test/resource.c
new file mode 100644
index 00000000..0e2b62cd
--- /dev/null
+++ b/app/test/resource.c
@@ -0,0 +1,305 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2016 RehiveTech. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of RehiveTech nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/queue.h>
+
+#include <rte_debug.h>
+
+#include "resource.h"
+
+struct resource_list resource_list = TAILQ_HEAD_INITIALIZER(resource_list);
+
+size_t resource_size(const struct resource *r)
+{
+	return r->end - r->begin;
+}
+
+const struct resource *resource_find(const char *name)
+{
+	struct resource *r;
+
+	TAILQ_FOREACH(r, &resource_list, next) {
+		RTE_VERIFY(r->name);
+
+		if (!strcmp(r->name, name))
+			return r;
+	}
+
+	return NULL;
+}
+
+int resource_fwrite(const struct resource *r, FILE *f)
+{
+	const size_t goal = resource_size(r);
+	size_t total = 0;
+
+	while (total < goal) {
+		size_t wlen = fwrite(r->begin + total, 1, goal - total, f);
+		if (wlen == 0) {
+			perror(__func__);
+			return -1;
+		}
+
+		total += wlen;
+	}
+
+	return 0;
+}
+
+int resource_fwrite_file(const struct resource *r, const char *fname)
+{
+	FILE *f;
+	int ret;
+
+	f = fopen(fname, "w");
+	if (f == NULL) {
+		perror(__func__);
+		return -1;
+	}
+
+	ret = resource_fwrite(r, f);
+	fclose(f);
+	return ret;
+}
+
+#ifdef RTE_APP_TEST_RESOURCE_TAR
+#include <archive.h>
+#include <archive_entry.h>
+
+static int do_copy(struct archive *r, struct archive *w)
+{
+	const void *buf;
+	size_t len;
+#if ARCHIVE_VERSION_NUMBER >= 3000000
+	int64_t off;
+#else
+	off_t off;
+#endif
+	int ret;
+
+	while (1) {
+		ret = archive_read_data_block(r, &buf, &len, &off);
+		if (ret == ARCHIVE_RETRY)
+			continue;
+
+		if (ret == ARCHIVE_EOF)
+			return 0;
+
+		if (ret != ARCHIVE_OK)
+			return ret;
+
+		do {
+			ret = archive_write_data_block(w, buf, len, off);
+			if (ret != ARCHIVE_OK && ret != ARCHIVE_RETRY)
+				return ret;
+		} while (ret != ARCHIVE_OK);
+	}
+}
+
+int resource_untar(const struct resource *res)
+{
+	struct archive *r;
+	struct archive *w;
+	struct archive_entry *e;
+	void *p;
+	int flags = 0;
+	int ret;
+
+	p = malloc(resource_size(res));
+	if (p == NULL)
+		rte_panic("Failed to malloc %zu B\n", resource_size(res));
+
+	memcpy(p, res->begin, resource_size(res));
+
+	r = archive_read_new();
+	if (r == NULL) {
+		free(p);
+		return -1;
+	}
+
+	archive_read_support_format_all(r);
+	archive_read_support_filter_all(r);
+
+	w = archive_write_disk_new();
+	if (w == NULL) {
+		archive_read_free(r);
+		free(p);
+		return -1;
+	}
+
+	flags |= ARCHIVE_EXTRACT_PERM;
+	flags |= ARCHIVE_EXTRACT_FFLAGS;
+	archive_write_disk_set_options(w, flags);
+	archive_write_disk_set_standard_lookup(w);
+
+	ret = archive_read_open_memory(r, p, resource_size(res));
+	if (ret != ARCHIVE_OK)
+		goto fail;
+
+	while (1) {
+		ret = archive_read_next_header(r, &e);
+		if (ret == ARCHIVE_EOF)
+			break;
+		if (ret != ARCHIVE_OK)
+			goto fail;
+
+		ret = archive_write_header(w, e);
+		if (ret == ARCHIVE_EOF)
+			break;
+		if (ret != ARCHIVE_OK)
+			goto fail;
+
+		if (archive_entry_size(e) == 0)
+			continue;
+
+		ret = do_copy(r, w);
+		if (ret != ARCHIVE_OK)
+			goto fail;
+
+		ret = archive_write_finish_entry(w);
+		if (ret != ARCHIVE_OK)
+			goto fail;
+	}
+
+	archive_write_free(w);
+	archive_read_free(r);
+	free(p);
+	return 0;
+
+fail:
+	archive_write_free(w);
+	archive_read_free(r);
+	free(p);
+	rte_panic("Failed: %s\n", archive_error_string(r));
+	return -1;
+}
+
+int resource_rm_by_tar(const struct resource *res)
+{
+	struct archive *r;
+	struct archive_entry *e;
+	void *p;
+	int try_again = 1;
+	int attempts = 0;
+	int ret;
+
+	p = malloc(resource_size(res));
+	if (p == NULL)
+		rte_panic("Failed to malloc %zu B\n", resource_size(res));
+
+	memcpy(p, res->begin, resource_size(res));
+
+	/*
+	 * If somebody creates a file somewhere inside the extracted TAR
+	 * hierarchy during a test the resource_rm_by_tar might loop
+	 * infinitely. We prevent this by adding the attempts counter there.
+	 * In normal case, max N iteration is done where N is the depth of
+	 * the file-hierarchy.
+	 */
+	while (try_again && attempts < 10000) {
+		r = archive_read_new();
+		if (r == NULL) {
+			free(p);
+			return -1;
+		}
+
+		archive_read_support_format_all(r);
+		archive_read_support_filter_all(r);
+
+		ret = archive_read_open_memory(r, p, resource_size(res));
+		if (ret != ARCHIVE_OK) {
+			fprintf(stderr, "Failed: %s\n",
+					archive_error_string(r));
+			goto fail;
+		}
+
+		try_again = 0;
+
+		while (1) {
+			ret = archive_read_next_header(r, &e);
+			if (ret == ARCHIVE_EOF)
+				break;
+			if (ret != ARCHIVE_OK)
+				goto fail;
+
+			ret = remove(archive_entry_pathname(e));
+			if (ret < 0) {
+				switch (errno) {
+				case ENOTEMPTY:
+				case EEXIST:
+					try_again = 1;
+					break;
+
+				/* should not usually happen: */
+				case ENOENT:
+				case ENOTDIR:
+				case EROFS:
+					attempts += 1;
+					continue;
+				default:
+					perror("Failed to remove file");
+					goto fail;
+				}
+			}
+		}
+
+		archive_read_free(r);
+		attempts += 1;
+	}
+
+	if (attempts >= 10000) {
+		fprintf(stderr, "Failed to remove archive\n");
+		free(p);
+		return -1;
+	}
+
+	free(p);
+	return 0;
+
+fail:
+	archive_read_free(r);
+	free(p);
+
+	rte_panic("Failed: %s\n", archive_error_string(r));
+	return -1;
+}
+
+#endif /* RTE_APP_TEST_RESOURCE_TAR */
+
+void resource_register(struct resource *r)
+{
+	TAILQ_INSERT_TAIL(&resource_list, r, next);
+}