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 "mboxd.h" 15 extern "C" { 16 #include "flash.h" 17 } 18 19 #include "vpnor/test/tmpd.hpp" 20 21 static constexpr auto BLOCK_SIZE = 0x1000; 22 static constexpr auto DATA_SIZE = 8; 23 24 const uint8_t data[DATA_SIZE] = {0xa0, 0xa1, 0xa2, 0xa3, 25 0xa4, 0xa5, 0xa6, 0xa7}; 26 27 const std::string toc[] = { 28 "partition01=TEST1,00001000,00002000,80,ECC,READWRITE", 29 }; 30 31 int main(void) 32 { 33 namespace fs = std::experimental::filesystem; 34 namespace test = openpower::virtual_pnor::test; 35 36 struct mbox_context _ctx, *ctx = &_ctx; 37 char src[DATA_SIZE]{0}; 38 void *map; 39 int rc; 40 int fd; 41 42 /* Setup */ 43 memset(ctx, 0, sizeof(mbox_context)); 44 45 mbox_vlog = &mbox_log_console; 46 verbosity = (verbose)2; 47 48 test::VpnorRoot root(ctx, toc, BLOCK_SIZE); 49 root.write("TEST1", data, sizeof(data)); 50 /* flash_write doesn't copy the file for us */ 51 assert(fs::copy_file(root.ro() / "TEST1", root.rw() / "TEST1")); 52 fs::path patch = root.patch() / "TEST1"; 53 assert(fs::copy_file(root.ro() / "TEST1", patch)); 54 55 init_vpnor_from_paths(ctx); 56 57 /* Test */ 58 memset(src, 0x33, sizeof(src)); 59 rc = flash_write(ctx, 0x1000, src, sizeof(src)); 60 assert(rc == 0); 61 62 /* Check that RW file is unmodified after the patch write */ 63 fd = open((root.rw() / "TEST1").c_str(), O_RDONLY); 64 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); 65 assert(map != MAP_FAILED); 66 rc = memcmp(data, map, sizeof(src)); 67 assert(rc == 0); 68 munmap(map, sizeof(src)); 69 close(fd); 70 71 /* Check that PATCH is modified with the new data */ 72 fd = open(patch.c_str(), O_RDONLY); 73 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); 74 assert(map != MAP_FAILED); 75 rc = memcmp(src, map, sizeof(src)); 76 assert(rc == 0); 77 munmap(map, sizeof(src)); 78 close(fd); 79 80 destroy_vpnor(ctx); 81 free(ctx->flash_bmap); 82 83 return rc; 84 } 85