test_utils.cc revision c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9
149fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com// Copyright (c) 2009 The Chromium OS Authors. All rights reserved. 249fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com// Use of this source code is governed by a BSD-style license that can be 349fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com// found in the LICENSE file. 449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 5c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include "update_engine/test_utils.h" 649fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <sys/stat.h> 749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <sys/types.h> 8c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include <errno.h> 949fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <stdio.h> 1049fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <stdlib.h> 1149fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <unistd.h> 12c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include <set> 1349fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <string> 1449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include <vector> 15c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include "base/string_util.h" 16c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include "chromeos/obsolete_logging.h" 1749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 1849fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com#include "update_engine/file_writer.h" 19c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include "update_engine/filesystem_iterator.h" 20c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com#include "update_engine/utils.h" 2149fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 22c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comusing std::set; 2349fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.comusing std::string; 2449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.comusing std::vector; 2549fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 2649fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.comnamespace chromeos_update_engine { 2749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 28c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.combool WriteFile(const char* path, const char* data, int data_len) { 2949fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com DirectFileWriter writer; 30c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com TEST_AND_RETURN_FALSE_ERRNO(0 == writer.Open(path, 31c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com O_WRONLY | O_CREAT | O_TRUNC, 32c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0666)); 33c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ScopedFileWriterCloser closer(&writer); 34c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com TEST_AND_RETURN_FALSE_ERRNO(data_len == writer.Write(data, data_len)); 3549fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com return true; 3649fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com} 3749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 38c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.combool WriteFileVector(const std::string& path, const std::vector<char>& data) { 39c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return WriteFile(path.c_str(), &data[0], data.size()); 40c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 41c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 42c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.combool WriteFileString(const std::string& path, const std::string& data) { 43c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return WriteFile(path.c_str(), data.data(), data.size()); 44c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 45c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 4649fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.comoff_t FileSize(const string& path) { 4749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com struct stat stbuf; 4849fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com int rc = stat(path.c_str(), &stbuf); 49c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com CHECK_EQ(rc, 0); 5049fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com if (rc < 0) 5149fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com return rc; 5249fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com return stbuf.st_size; 5349fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com} 5449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 55c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comstd::string Readlink(const std::string& path) { 56c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com vector<char> buf(PATH_MAX + 1); 57c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ssize_t r = readlink(path.c_str(), &buf[0], buf.size()); 58c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (r < 0) 59c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return ""; 60c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com CHECK_LT(r, static_cast<ssize_t>(buf.size())); 61c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com buf.resize(r); 62c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com string ret; 63c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ret.insert(ret.begin(), buf.begin(), buf.end()); 64c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return ret; 65c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 66c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 6749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.comstd::vector<char> GzipCompressData(const std::vector<char>& data) { 6849fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com const char fname[] = "/tmp/GzipCompressDataTemp"; 69c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (!WriteFileVector(fname, data)) { 7049fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com system((string("rm ") + fname).c_str()); 7149fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com return vector<char>(); 7249fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com } 7349fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com system((string("cat ") + fname + "|gzip>" + fname + ".gz").c_str()); 7449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com system((string("rm ") + fname).c_str()); 75c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com vector<char> ret; 76c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(utils::ReadFile(string(fname) + ".gz", &ret)); 7749fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com system((string("rm ") + fname + ".gz").c_str()); 7849fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com return ret; 7949fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com} 8049fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com 81c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comvector<char> GenerateSampleMbr() { 82c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com // This is the actual MBR from my dev machine. Partition 1 (the first) 83c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com // is currently marked bootable 84c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com char mbr[512] = { 85c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xeb, 0x48, 0x90, 0x10, 0x8e, 0xd0, 0xbc, 0x00, 86c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0, 87c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9, 88c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00, 89c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b, 90c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75, 91c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb, 92c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x03, 0x02, 93c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xff, 0x00, 0x00, 0x20, 0x01, 0x00, 0x00, 0x00, 94c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x02, 0xfa, 0x90, 0x90, 0xf6, 0xc2, 0x80, 95c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x75, 0x02, 0xb2, 0x80, 0xea, 0x59, 0x7c, 0x00, 96c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x31, 0xc0, 0x8e, 0xd8, 0x8e, 0xd0, 0xbc, 97c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x20, 0xfb, 0xa0, 0x40, 0x7c, 0x3c, 0xff, 98c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x74, 0x02, 0x88, 0xc2, 0x52, 0xbe, 0x7f, 0x7d, 99c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xe8, 0x34, 0x01, 0xf6, 0xc2, 0x80, 0x74, 0x54, 100c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xb4, 0x41, 0xbb, 0xaa, 0x55, 0xcd, 0x13, 0x5a, 101c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x52, 0x72, 0x49, 0x81, 0xfb, 0x55, 0xaa, 0x75, 102c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x43, 0xa0, 0x41, 0x7c, 0x84, 0xc0, 0x75, 0x05, 103c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x83, 0xe1, 0x01, 0x74, 0x37, 0x66, 0x8b, 0x4c, 104c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x10, 0xbe, 0x05, 0x7c, 0xc6, 0x44, 0xff, 0x01, 105c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x66, 0x8b, 0x1e, 0x44, 0x7c, 0xc7, 0x04, 0x10, 106c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0xc7, 0x44, 0x02, 0x01, 0x00, 0x66, 0x89, 107c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x5c, 0x08, 0xc7, 0x44, 0x06, 0x00, 0x70, 0x66, 108c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x31, 0xc0, 0x89, 0x44, 0x04, 0x66, 0x89, 0x44, 109c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x0c, 0xb4, 0x42, 0xcd, 0x13, 0x72, 0x05, 0xbb, 110c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x70, 0xeb, 0x7d, 0xb4, 0x08, 0xcd, 0x13, 111c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x73, 0x0a, 0xf6, 0xc2, 0x80, 0x0f, 0x84, 0xea, 112c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0xe9, 0x8d, 0x00, 0xbe, 0x05, 0x7c, 0xc6, 113c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x44, 0xff, 0x00, 0x66, 0x31, 0xc0, 0x88, 0xf0, 114c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x40, 0x66, 0x89, 0x44, 0x04, 0x31, 0xd2, 0x88, 115c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xca, 0xc1, 0xe2, 0x02, 0x88, 0xe8, 0x88, 0xf4, 116c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x40, 0x89, 0x44, 0x08, 0x31, 0xc0, 0x88, 0xd0, 117c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xc0, 0xe8, 0x02, 0x66, 0x89, 0x04, 0x66, 0xa1, 118c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x44, 0x7c, 0x66, 0x31, 0xd2, 0x66, 0xf7, 0x34, 119c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x88, 0x54, 0x0a, 0x66, 0x31, 0xd2, 0x66, 0xf7, 120c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x74, 0x04, 0x88, 0x54, 0x0b, 0x89, 0x44, 0x0c, 121c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x3b, 0x44, 0x08, 0x7d, 0x3c, 0x8a, 0x54, 0x0d, 122c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xc0, 0xe2, 0x06, 0x8a, 0x4c, 0x0a, 0xfe, 0xc1, 123c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x08, 0xd1, 0x8a, 0x6c, 0x0c, 0x5a, 0x8a, 0x74, 124c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x0b, 0xbb, 0x00, 0x70, 0x8e, 0xc3, 0x31, 0xdb, 125c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xb8, 0x01, 0x02, 0xcd, 0x13, 0x72, 0x2a, 0x8c, 126c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xc3, 0x8e, 0x06, 0x48, 0x7c, 0x60, 0x1e, 0xb9, 127c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x01, 0x8e, 0xdb, 0x31, 0xf6, 0x31, 0xff, 128c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xfc, 0xf3, 0xa5, 0x1f, 0x61, 0xff, 0x26, 0x42, 129c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x7c, 0xbe, 0x85, 0x7d, 0xe8, 0x40, 0x00, 0xeb, 130c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x0e, 0xbe, 0x8a, 0x7d, 0xe8, 0x38, 0x00, 0xeb, 131c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x06, 0xbe, 0x94, 0x7d, 0xe8, 0x30, 0x00, 0xbe, 132c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x99, 0x7d, 0xe8, 0x2a, 0x00, 0xeb, 0xfe, 0x47, 133c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x52, 0x55, 0x42, 0x20, 0x00, 0x47, 0x65, 0x6f, 134c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x6d, 0x00, 0x48, 0x61, 0x72, 0x64, 0x20, 0x44, 135c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x69, 0x73, 0x6b, 0x00, 0x52, 0x65, 0x61, 0x64, 136c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x20, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x00, 137c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xbb, 0x01, 0x00, 0xb4, 0x0e, 0xcd, 0x10, 0xac, 138c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x3c, 0x00, 0x75, 0xf4, 0xc3, 0x00, 0x00, 0x00, 139c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 140c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x50, 0xc1, 0x04, 0x00, 0x00, 0x00, 0x80, 0x01, 141c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x01, 0x00, 0x83, 0xfe, 0xff, 0xff, 0x3f, 0x00, 142c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x09, 0x7f, 0x32, 0x06, 0x00, 0xfe, 143c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0xff, 0xff, 0x05, 0xfe, 0xff, 0xff, 0x48, 0x7f, 144c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x32, 0x06, 0x79, 0x59, 0x2d, 0x00, 0x00, 0x00, 145c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 146c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 147c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 148c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa 149c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com }; 150c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com vector<char> ret; 151c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ret.insert(ret.begin(), mbr, mbr + sizeof(mbr)); 152c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return ret; 153c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 154c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 155c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comstd::string GetUnusedLoopDevice() { 156c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com // get a loop device we can use for the install device 157c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com FILE* find_dev_cmd = popen("losetup -f", "r"); 158c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com CHECK(find_dev_cmd); 159c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 160c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com string ret; 161c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com char dev[100] = {0}; 162c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com size_t r; 163c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com while ((r = fread(dev, 1, sizeof(dev - 1), find_dev_cmd)) > 0) { 164c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_LT(r, sizeof(dev)); 165c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ret.insert(ret.end(), dev, dev + r); 166c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 167c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(r, 0); 168c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(feof(find_dev_cmd)); 169c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com fclose(find_dev_cmd); 170c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 171c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com // strip trailing \n on dev 172c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (*ret.rbegin() == '\n') 173c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ret.resize(ret.size() - 1); 174c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 175c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return ret; 176c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 177c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 178c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.combool ExpectVectorsEq(const vector<char>& a, const vector<char>& b) { 179c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(a.size(), b.size()); 180c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (a.size() != b.size()) 181c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return false; 182c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com for (unsigned int i = 0; i < a.size(); i++) { 183c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(a[i], b[i]) << "offset: " << i; 184c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 185c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com return true; 186c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 187c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 188c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comvoid CreateExtImageAtPath(const string& path, vector<string>* out_paths) { 189c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com // create 10MiB sparse file 190c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com const char* const mount_path = kMountPath.c_str(); 191c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("dd if=/dev/zero of=%s" 192c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com " seek=10485759 bs=1 count=1", 193c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com path.c_str()))); 194c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkfs.ext3 -F %s", path.c_str()))); 195c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkdir -p %s", mount_path))); 196c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mount -o loop %s %s", path.c_str(), 197c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com mount_path))); 198c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("echo hi > %s/hi", mount_path))); 199c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("echo hello > %s/hello", mount_path))); 200c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkdir %s/some_dir", mount_path))); 201c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkdir %s/some_dir/empty_dir", mount_path))); 202c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkdir %s/some_dir/mnt", mount_path))); 203c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("echo T > %s/some_dir/test", mount_path))); 204c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mkfifo %s/some_dir/fifo", mount_path))); 205c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("mknod %s/cdev c 2 3", mount_path))); 206c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("ln -s /some/target %s/sym", mount_path))); 207c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("ln %s/some_dir/test %s/testlink", 208c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com mount_path, mount_path))); 209c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(0, System(StringPrintf("umount %s", mount_path))); 210c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 211c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (out_paths) { 212c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->clear(); 213c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back(""); 214c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/hi"); 215c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/hello"); 216c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/some_dir"); 217c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/some_dir/empty_dir"); 218c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/some_dir/mnt"); 219c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/some_dir/test"); 220c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/some_dir/fifo"); 221c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/cdev"); 222c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/testlink"); 223c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/sym"); 224c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com out_paths->push_back("/lost+found"); 225c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 226c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 227c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 228c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.comvoid VerifyAllPaths(const string& parent, set<string> expected_paths) { 229c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com FilesystemIterator iter(parent, set<string>()); 230c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ino_t test_ino = 0; 231c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com ino_t testlink_ino = 0; 232c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com while (!iter.IsEnd()) { 233c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com string path = iter.GetFullPath(); 234c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(expected_paths.find(path) != expected_paths.end()) << path; 235c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(1, expected_paths.erase(path)); 236c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (utils::StringHasSuffix(path, "/hi") || 237c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/hello") || 238c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/test") || 239c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/testlink")) { 240c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(S_ISREG(iter.GetStat().st_mode)); 241c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (utils::StringHasSuffix(path, "/test")) 242c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com test_ino = iter.GetStat().st_ino; 243c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com else if (utils::StringHasSuffix(path, "/testlink")) 244c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com testlink_ino = iter.GetStat().st_ino; 245c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } else if (utils::StringHasSuffix(path, "/some_dir") || 246c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/empty_dir") || 247c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/mnt") || 248c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com utils::StringHasSuffix(path, "/lost+found") || 249c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com parent == path) { 250c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(S_ISDIR(iter.GetStat().st_mode)); 251c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } else if (utils::StringHasSuffix(path, "/fifo")) { 252c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(S_ISFIFO(iter.GetStat().st_mode)); 253c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } else if (utils::StringHasSuffix(path, "/cdev")) { 254c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(S_ISCHR(iter.GetStat().st_mode)); 255c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } else if (utils::StringHasSuffix(path, "/sym")) { 256c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(S_ISLNK(iter.GetStat().st_mode)); 257c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } else { 258c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com LOG(INFO) << "got non hardcoded path: " << path; 259c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 260c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com iter.Increment(); 261c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 262c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_EQ(testlink_ino, test_ino); 263c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_NE(0, test_ino); 264c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_FALSE(iter.IsErr()); 265c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com EXPECT_TRUE(expected_paths.empty()); 266c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com if (!expected_paths.empty()) { 267c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com for (set<string>::const_iterator it = expected_paths.begin(); 268c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com it != expected_paths.end(); ++it) { 269c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com LOG(INFO) << "extra path: " << *it; 270c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 271c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com } 272c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com} 273c98a7edf648aad88b3f66df3b5a7d43d6a6d7fa9adlr@google.com 27449fdf1889b965be25f929eeebc5b60cd40b9043rspangler@google.com} // namespace chromeos_update_engine 275