1 2 #include "estoraged.hpp" 3 4 #include "cryptsetupInterface.hpp" 5 #include "pattern.hpp" 6 #include "verifyDriveGeometry.hpp" 7 8 #include <libcryptsetup.h> 9 #include <openssl/rand.h> 10 #include <stdlib.h> 11 12 #include <phosphor-logging/lg2.hpp> 13 #include <xyz/openbmc_project/Common/error.hpp> 14 15 #include <filesystem> 16 #include <iostream> 17 #include <string_view> 18 #include <vector> 19 20 namespace estoraged 21 { 22 23 using sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure; 24 using sdbusplus::xyz::openbmc_project::Common::Error::ResourceNotFound; 25 using sdbusplus::xyz::openbmc_project::Common::Error::UnsupportedRequest; 26 27 void eStoraged::formatLuks(std::vector<uint8_t> password, FilesystemType type) 28 { 29 std::string msg = "OpenBMC.0.1.DriveFormat"; 30 lg2::info("Starting format", "REDFISH_MESSAGE_ID", msg); 31 32 if (type != FilesystemType::ext4) 33 { 34 lg2::error("Only ext4 filesystems are supported currently", 35 "REDFISH_MESSAGE_ID", std::string("OpenBMC.0.1.FormatFail")); 36 throw UnsupportedRequest(); 37 } 38 39 CryptHandle cryptHandle(devPath.c_str()); 40 if (cryptHandle.get() == nullptr) 41 { 42 lg2::error("Failed to initialize crypt device", "REDFISH_MESSAGE_ID", 43 std::string("OpenBMC.0.1.FormatFail")); 44 throw ResourceNotFound(); 45 } 46 47 formatLuksDev(cryptHandle.get(), password); 48 activateLuksDev(cryptHandle.get(), password); 49 50 createFilesystem(); 51 mountFilesystem(); 52 } 53 54 void eStoraged::erase(EraseMethod inEraseMethod) 55 { 56 std::cerr << "Erasing encrypted eMMC" << std::endl; 57 lg2::info("Starting erase", "REDFISH_MESSAGE_ID", 58 std::string("OpenBMC.0.1.DriveErase")); 59 switch (inEraseMethod) 60 { 61 case EraseMethod::CryptoErase: 62 { 63 break; 64 } 65 case EraseMethod::VerifyGeometry: 66 { 67 VerifyDriveGeometry myVerifyGeometry(devPath); 68 uint64_t size = myVerifyGeometry.findSizeOfBlockDevice(); 69 myVerifyGeometry.geometryOkay(size); 70 break; 71 } 72 case EraseMethod::LogicalOverWrite: 73 { 74 Pattern myErasePattern(devPath); 75 ManagedFd drivefd = 76 stdplus::fd::open(devPath, stdplus::fd::OpenAccess::WriteOnly); 77 myErasePattern.writePattern(myErasePattern.findSizeOfBlockDevice(), 78 drivefd); 79 break; 80 } 81 case EraseMethod::LogicalVerify: 82 { 83 Pattern myErasePattern(devPath); 84 ManagedFd drivefd = 85 stdplus::fd::open(devPath, stdplus::fd::OpenAccess::ReadOnly); 86 myErasePattern.verifyPattern(myErasePattern.findSizeOfBlockDevice(), 87 drivefd); 88 break; 89 } 90 case EraseMethod::VendorSanitize: 91 { 92 break; 93 } 94 case EraseMethod::ZeroOverWrite: 95 { 96 break; 97 } 98 case EraseMethod::ZeroVerify: 99 { 100 break; 101 } 102 case EraseMethod::SecuredLocked: 103 { 104 break; 105 } 106 } 107 } 108 109 void eStoraged::lock() 110 { 111 std::string msg = "OpenBMC.0.1.DriveLock"; 112 lg2::info("Starting lock", "REDFISH_MESSAGE_ID", msg); 113 114 unmountFilesystem(); 115 deactivateLuksDev(); 116 } 117 118 void eStoraged::unlock(std::vector<uint8_t> password) 119 { 120 std::string msg = "OpenBMC.0.1.DriveUnlock"; 121 lg2::info("Starting unlock", "REDFISH_MESSAGE_ID", msg); 122 123 CryptHandle cryptHandle(devPath.c_str()); 124 if (cryptHandle.get() == nullptr) 125 { 126 lg2::error("Failed to initialize crypt device", "REDFISH_MESSAGE_ID", 127 std::string("OpenBMC.0.1.UnlockFail")); 128 throw ResourceNotFound(); 129 } 130 131 activateLuksDev(cryptHandle.get(), password); 132 mountFilesystem(); 133 } 134 135 void eStoraged::changePassword(std::vector<uint8_t>, std::vector<uint8_t>) 136 { 137 std::cerr << "Changing password for encrypted eMMC" << std::endl; 138 lg2::info("Starting change password", "REDFISH_MESSAGE_ID", 139 std::string("OpenBMC.0.1.DrivePasswordChanged")); 140 } 141 142 bool eStoraged::isLocked() const 143 { 144 return locked(); 145 } 146 147 std::string_view eStoraged::getMountPoint() const 148 { 149 return mountPoint; 150 } 151 152 void eStoraged::formatLuksDev(struct crypt_device* cd, 153 std::vector<uint8_t> password) 154 { 155 lg2::info("Formatting device {DEV}", "DEV", devPath, "REDFISH_MESSAGE_ID", 156 std::string("OpenBMC.0.1.FormatLuksDev")); 157 158 /* Generate the volume key. */ 159 const std::size_t keySize = 64; 160 std::vector<uint8_t> volumeKey(keySize); 161 if (RAND_bytes(volumeKey.data(), keySize) != 1) 162 { 163 lg2::error("Failed to create volume key", "REDFISH_MESSAGE_ID", 164 std::string("OpenBMC.0.1.FormatLuksDevFail")); 165 throw InternalFailure(); 166 } 167 /* Format the LUKS encrypted device. */ 168 int retval = 169 cryptIface->cryptFormat(cd, CRYPT_LUKS2, "aes", "xts-plain64", nullptr, 170 reinterpret_cast<const char*>(volumeKey.data()), 171 volumeKey.size(), nullptr); 172 if (retval < 0) 173 { 174 lg2::error("Failed to format encrypted device: {RETVAL}", "RETVAL", 175 retval, "REDFISH_MESSAGE_ID", 176 std::string("OpenBMC.0.1.FormatLuksDevFail")); 177 throw InternalFailure(); 178 } 179 180 /* Device is now encrypted. */ 181 locked(true); 182 183 /* Set the password. */ 184 retval = cryptIface->cryptKeyslotAddByVolumeKey( 185 cd, CRYPT_ANY_SLOT, nullptr, 0, 186 reinterpret_cast<const char*>(password.data()), password.size()); 187 188 if (retval < 0) 189 { 190 lg2::error("Failed to set encryption password", "REDFISH_MESSAGE_ID", 191 std::string("OpenBMC.0.1.FormatLuksDevFail")); 192 throw InternalFailure(); 193 } 194 195 lg2::info("Encrypted device {DEV} successfully formatted", "DEV", devPath, 196 "REDFISH_MESSAGE_ID", 197 std::string("OpenBMC.0.1.FormatLuksDevSuccess")); 198 } 199 200 void eStoraged::activateLuksDev(struct crypt_device* cd, 201 std::vector<uint8_t> password) 202 { 203 lg2::info("Activating LUKS dev {DEV}", "DEV", devPath, "REDFISH_MESSAGE_ID", 204 std::string("OpenBMC.0.1.ActivateLuksDev")); 205 206 int retval = cryptIface->cryptLoad(cd, CRYPT_LUKS2, nullptr); 207 if (retval < 0) 208 { 209 lg2::error("Failed to load LUKS header: {RETVAL}", "RETVAL", retval, 210 "REDFISH_MESSAGE_ID", 211 std::string("OpenBMC.0.1.ActivateLuksDevFail")); 212 throw InternalFailure(); 213 } 214 215 retval = cryptIface->cryptActivateByPassphrase( 216 cd, containerName.c_str(), CRYPT_ANY_SLOT, 217 reinterpret_cast<const char*>(password.data()), password.size(), 0); 218 219 if (retval < 0) 220 { 221 lg2::error("Failed to activate LUKS dev: {RETVAL}", "RETVAL", retval, 222 "REDFISH_MESSAGE_ID", 223 std::string("OpenBMC.0.1.ActivateLuksDevFail")); 224 throw InternalFailure(); 225 } 226 227 /* Device is now unlocked. */ 228 locked(false); 229 230 lg2::info("Successfully activated LUKS dev {DEV}", "DEV", devPath, 231 "REDFISH_MESSAGE_ID", 232 std::string("OpenBMC.0.1.ActivateLuksDevSuccess")); 233 } 234 235 void eStoraged::createFilesystem() 236 { 237 /* Run the command to create the filesystem. */ 238 int retval = fsIface->runMkfs(containerName); 239 if (retval) 240 { 241 lg2::error("Failed to create filesystem: {RETVAL}", "RETVAL", retval, 242 "REDFISH_MESSAGE_ID", 243 std::string("OpenBMC.0.1.CreateFilesystemFail")); 244 throw InternalFailure(); 245 } 246 lg2::info("Successfully created filesystem for /dev/mapper/{CONTAINER}", 247 "CONTAINER", containerName, "REDFISH_MESSAGE_ID", 248 std::string("OpenBMC.0.1.CreateFilesystemSuccess")); 249 } 250 251 void eStoraged::mountFilesystem() 252 { 253 /* Create directory for the filesystem. */ 254 bool success = fsIface->createDirectory(std::filesystem::path(mountPoint)); 255 if (!success) 256 { 257 lg2::error("Failed to create mount point: {DIR}", "DIR", mountPoint, 258 "REDFISH_MESSAGE_ID", 259 std::string("OpenBMC.0.1.MountFilesystemFail")); 260 throw InternalFailure(); 261 } 262 263 /* Run the command to mount the filesystem. */ 264 std::string luksContainer("/dev/mapper/" + containerName); 265 int retval = fsIface->doMount(luksContainer.c_str(), mountPoint.c_str(), 266 "ext4", 0, nullptr); 267 if (retval) 268 { 269 lg2::error("Failed to mount filesystem: {RETVAL}", "RETVAL", retval, 270 "REDFISH_MESSAGE_ID", 271 std::string("OpenBMC.0.1.MountFilesystemFail")); 272 bool removeSuccess = 273 fsIface->removeDirectory(std::filesystem::path(mountPoint)); 274 if (!removeSuccess) 275 { 276 lg2::error("Failed to remove mount point: {DIR}", "DIR", mountPoint, 277 "REDFISH_MESSAGE_ID", 278 std::string("OpenBMC.0.1.MountFilesystemFail")); 279 } 280 throw InternalFailure(); 281 } 282 283 lg2::info("Successfully mounted filesystem at {DIR}", "DIR", mountPoint, 284 "REDFISH_MESSAGE_ID", 285 std::string("OpenBMC.0.1.MountFilesystemSuccess")); 286 } 287 288 void eStoraged::unmountFilesystem() 289 { 290 int retval = fsIface->doUnmount(mountPoint.c_str()); 291 if (retval) 292 { 293 lg2::error("Failed to unmount filesystem: {RETVAL}", "RETVAL", retval, 294 "REDFISH_MESSAGE_ID", 295 std::string("OpenBMC.0.1.UnmountFilesystemFail")); 296 throw InternalFailure(); 297 } 298 299 /* Remove the mount point. */ 300 bool success = fsIface->removeDirectory(std::filesystem::path(mountPoint)); 301 if (!success) 302 { 303 lg2::error("Failed to remove mount point {DIR}", "DIR", mountPoint, 304 "REDFISH_MESSAGE_ID", 305 std::string("OpenBMC.0.1.UnmountFilesystemFail")); 306 throw InternalFailure(); 307 } 308 309 lg2::info("Successfully unmounted filesystem at {DIR}", "DIR", mountPoint, 310 "REDFISH_MESSAGE_ID", 311 std::string("OpenBMC.0.1.MountFilesystemSuccess")); 312 } 313 314 void eStoraged::deactivateLuksDev() 315 { 316 lg2::info("Deactivating LUKS device {DEV}", "DEV", devPath, 317 "REDFISH_MESSAGE_ID", 318 std::string("OpenBMC.0.1.DeactivateLuksDev")); 319 320 int retval = cryptIface->cryptDeactivate(nullptr, containerName.c_str()); 321 if (retval < 0) 322 { 323 lg2::error("Failed to deactivate crypt device: {RETVAL}", "RETVAL", 324 retval, "REDFISH_MESSAGE_ID", 325 std::string("OpenBMC.0.1.DeactivateLuksDevFail")); 326 throw InternalFailure(); 327 } 328 329 /* Device is now locked. */ 330 locked(true); 331 332 lg2::info("Successfully deactivated LUKS device {DEV}", "DEV", devPath, 333 "REDFISH_MESSAGE_ID", 334 std::string("OpenBMC.0.1.DeactivateLuksDevSuccess")); 335 } 336 337 } // namespace estoraged 338