1 // SPDX-License-Identifier: Apache-2.0 2 // Copyright (C) 2018 IBM Corp. 3 4 #include "config.h" 5 6 #include <assert.h> 7 #include <fcntl.h> 8 #include <sys/ioctl.h> 9 #include <sys/mman.h> 10 #include <sys/syslog.h> 11 #include <unistd.h> 12 13 #include <experimental/filesystem> 14 15 #include "common.h" 16 #include "mboxd.h" 17 extern "C" { 18 #include "flash.h" 19 } 20 21 #include "vpnor/test/tmpd.hpp" 22 23 static constexpr auto BLOCK_SIZE = 0x1000; 24 static constexpr auto DATA_SIZE = 8; 25 26 const uint8_t data[DATA_SIZE] = {0xa0, 0xa1, 0xa2, 0xa3, 27 0xa4, 0xa5, 0xa6, 0xa7}; 28 29 const std::string toc[] = { 30 "partition01=TEST1,00001000,00002000,80,ECC,READWRITE", 31 }; 32 33 int main(void) 34 { 35 namespace fs = std::experimental::filesystem; 36 namespace test = openpower::virtual_pnor::test; 37 38 struct mbox_context _ctx, *ctx = &_ctx; 39 char src[DATA_SIZE]{0}; 40 void* map; 41 int rc; 42 int fd; 43 44 /* Setup */ 45 memset(ctx, 0, sizeof(mbox_context)); 46 47 mbox_vlog = &mbox_log_console; 48 verbosity = (verbose)2; 49 50 test::VpnorRoot root(ctx, toc, BLOCK_SIZE); 51 root.write("TEST1", data, sizeof(data)); 52 /* flash_write doesn't copy the file for us */ 53 assert(fs::copy_file(root.ro() / "TEST1", root.rw() / "TEST1")); 54 fs::path patch = root.patch() / "TEST1"; 55 assert(fs::copy_file(root.ro() / "TEST1", patch)); 56 57 init_vpnor_from_paths(ctx); 58 59 /* Test */ 60 memset(src, 0x33, sizeof(src)); 61 rc = flash_write(ctx, 0x1000, src, sizeof(src)); 62 assert(rc == 0); 63 64 /* Check that RW file is unmodified after the patch write */ 65 fd = open((root.rw() / "TEST1").c_str(), O_RDONLY); 66 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); 67 assert(map != MAP_FAILED); 68 rc = memcmp(data, map, sizeof(src)); 69 assert(rc == 0); 70 munmap(map, sizeof(src)); 71 close(fd); 72 73 /* Check that PATCH is modified with the new data */ 74 fd = open(patch.c_str(), O_RDONLY); 75 map = mmap(NULL, sizeof(src), PROT_READ, MAP_SHARED, fd, 0); 76 assert(map != MAP_FAILED); 77 rc = memcmp(src, map, sizeof(src)); 78 assert(rc == 0); 79 munmap(map, sizeof(src)); 80 close(fd); 81 82 destroy_vpnor(ctx); 83 free(ctx->flash_bmap); 84 85 return rc; 86 } 87