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Diffstat (limited to 'vpnor/test/write_patch.cpp')
-rw-r--r-- | vpnor/test/write_patch.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/vpnor/test/write_patch.cpp b/vpnor/test/write_patch.cpp new file mode 100644 index 0000000..3b2b16a --- /dev/null +++ b/vpnor/test/write_patch.cpp @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright (C) 2018 IBM Corp. + +#include <assert.h> +#include <experimental/filesystem> +#include <fcntl.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 "vpnor/test/tmpd.hpp" + +static constexpr auto BLOCK_SIZE = 0x1000; +static constexpr auto DATA_SIZE = 8; + +const uint8_t data[DATA_SIZE] = {0xa0, 0xa1, 0xa2, 0xa3, + 0xa4, 0xa5, 0xa6, 0xa7}; + +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; + char src[DATA_SIZE]{0}; + 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); + root.write("TEST1", data, sizeof(data)); + /* write_flash doesn't copy the file for us */ + assert(fs::copy_file(root.ro() / "TEST1", root.rw() / "TEST1")); + fs::path patch = root.patch() / "TEST1"; + assert(fs::copy_file(root.ro() / "TEST1", patch)); + + init_vpnor_from_paths(ctx); + + /* Test */ + memset(src, 0x33, sizeof(src)); + rc = write_flash(ctx, 0x1000, src, sizeof(src)); + assert(rc == 0); + + /* Check that RW file is unmodified after the patch write */ + fd = open((root.rw() / "TEST1").c_str(), O_RDONLY); + map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); + assert(map != MAP_FAILED); + rc = memcmp(data, map, sizeof(src)); + assert(rc == 0); + munmap(map, sizeof(src)); + close(fd); + + /* Check that PATCH is modified with the new data */ + fd = open(patch.c_str(), O_RDONLY); + map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); + assert(map != MAP_FAILED); + rc = memcmp(src, map, sizeof(src)); + assert(rc == 0); + munmap(map, sizeof(src)); + close(fd); + + destroy_vpnor(ctx); + free(ctx->flash_bmap); + + return rc; +} |