1 // SPDX-License-Identifier: Apache-2.0
2 // Copyright (C) 2018 IBM Corp.
3
4 #include <assert.h>
5 #include <experimental/filesystem>
6 #include <fcntl.h>
7 #include <sys/ioctl.h>
8 #include <sys/mman.h>
9 #include <sys/syslog.h>
10 #include <unistd.h>
11
12 #include "config.h"
13 #include "common.h"
14 #include "mbox.h"
15 #include "mboxd_flash.h"
16
17 #include "vpnor/test/tmpd.hpp"
18
19 static constexpr auto BLOCK_SIZE = 0x1000;
20 static constexpr auto DATA_SIZE = 8;
21
22 const uint8_t data[DATA_SIZE] = {0xa0, 0xa1, 0xa2, 0xa3,
23 0xa4, 0xa5, 0xa6, 0xa7};
24
25 const std::string toc[] = {
26 "partition01=TEST1,00001000,00002000,80,ECC,READWRITE",
27 };
28
main(void)29 int main(void)
30 {
31 namespace fs = std::experimental::filesystem;
32 namespace test = openpower::virtual_pnor::test;
33
34 struct mbox_context _ctx, *ctx = &_ctx;
35 char src[DATA_SIZE]{0};
36 void *map;
37 int rc;
38 int fd;
39
40 /* Setup */
41 memset(ctx, 0, sizeof(mbox_context));
42
43 mbox_vlog = &mbox_log_console;
44 verbosity = (verbose)2;
45
46 test::VpnorRoot root(ctx, toc, BLOCK_SIZE);
47 root.write("TEST1", data, sizeof(data));
48 /* write_flash doesn't copy the file for us */
49 assert(fs::copy_file(root.ro() / "TEST1", root.rw() / "TEST1"));
50 fs::path patch = root.patch() / "TEST1";
51 assert(fs::copy_file(root.ro() / "TEST1", patch));
52
53 init_vpnor_from_paths(ctx);
54
55 /* Test */
56 memset(src, 0x33, sizeof(src));
57 rc = write_flash(ctx, 0x1000, src, sizeof(src));
58 assert(rc == 0);
59
60 /* Check that RW file is unmodified after the patch write */
61 fd = open((root.rw() / "TEST1").c_str(), O_RDONLY);
62 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0);
63 assert(map != MAP_FAILED);
64 rc = memcmp(data, map, sizeof(src));
65 assert(rc == 0);
66 munmap(map, sizeof(src));
67 close(fd);
68
69 /* Check that PATCH is modified with the new data */
70 fd = open(patch.c_str(), O_RDONLY);
71 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0);
72 assert(map != MAP_FAILED);
73 rc = memcmp(src, map, sizeof(src));
74 assert(rc == 0);
75 munmap(map, sizeof(src));
76 close(fd);
77
78 destroy_vpnor(ctx);
79 free(ctx->flash_bmap);
80
81 return rc;
82 }
83