test: vpnor: Add write_patch_resize
Ensures writes can resize the backing files up to the limit of the
partition size.
Change-Id: Ie399d556dd485a235b7f6731d35536b2a6c703be
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/test/vpnor/write_patch_resize.cpp b/test/vpnor/write_patch_resize.cpp
new file mode 100644
index 0000000..24c71b0
--- /dev/null
+++ b/test/vpnor/write_patch_resize.cpp
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright (C) 2018 IBM Corp.
+
+#include <assert.h>
+#include <experimental/filesystem>
+#include <fcntl.h>
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/syslog.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "common.h"
+#include "mbox.h"
+#include "mboxd_flash.h"
+
+#include "test/vpnor/tmpd.hpp"
+
+static constexpr auto BLOCK_SIZE = 0x1000;
+static constexpr auto PART_SIZE = BLOCK_SIZE;
+static constexpr auto PATCH_SIZE = BLOCK_SIZE / 2;
+static constexpr auto UPDATE_SIZE = BLOCK_SIZE;
+
+const std::string toc[] = {
+ "partition01=TEST1,00001000,00002000,80,ECC,READWRITE",
+};
+
+int main(void)
+{
+ namespace fs = std::experimental::filesystem;
+ namespace test = openpower::virtual_pnor::test;
+
+ struct mbox_context _ctx, *ctx = &_ctx;
+ void *map;
+ int rc;
+ int fd;
+
+ /* Setup */
+ memset(ctx, 0, sizeof(mbox_context));
+
+ mbox_vlog = &mbox_log_console;
+ verbosity = (verbose)2;
+
+ test::VpnorRoot root(ctx, toc, BLOCK_SIZE);
+ std::vector<uint8_t> roContent(PART_SIZE, 0xff);
+ root.write("TEST1", roContent.data(), roContent.size());
+ /* write_flash doesn't copy the file for us */
+ std::vector<uint8_t> patchContent(PATCH_SIZE, 0xaa);
+ root.patch("TEST1", patchContent.data(), patchContent.size());
+
+ vpnor_create_partition_table_from_path(ctx, root.ro().c_str());
+
+ /* Test */
+ std::vector<uint8_t> update(UPDATE_SIZE, 0x55);
+ rc = write_flash(ctx, 0x1000, update.data(), update.size());
+ assert(rc == 0);
+
+ /* Check that PATCH is modified with the new data */
+ fs::path patch = root.patch() / "TEST1";
+ assert(UPDATE_SIZE == fs::file_size(patch));
+ fd = open(patch.c_str(), O_RDONLY);
+ map = mmap(NULL, UPDATE_SIZE, PROT_READ, MAP_SHARED, fd, 0);
+ assert(map != MAP_FAILED);
+ rc = memcmp(update.data(), map, update.size());
+ assert(rc == 0);
+ munmap(map, update.size());
+ close(fd);
+
+ destroy_vpnor(ctx);
+ free(ctx->flash_bmap);
+
+ return rc;
+}