John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 1 | |
| 2 | #include "estoraged.hpp" |
| 3 | |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 4 | #include "cryptsetupInterface.hpp" |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 5 | |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 6 | #include <libcryptsetup.h> |
| 7 | #include <openssl/rand.h> |
| 8 | #include <stdlib.h> |
| 9 | |
| 10 | #include <phosphor-logging/lg2.hpp> |
| 11 | #include <xyz/openbmc_project/eStoraged/error.hpp> |
| 12 | |
| 13 | #include <filesystem> |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 14 | #include <iostream> |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 15 | #include <string_view> |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 16 | #include <vector> |
| 17 | |
| 18 | namespace estoraged |
| 19 | { |
| 20 | |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 21 | using sdbusplus::xyz::openbmc_project::eStoraged::Error::EncryptionError; |
| 22 | using sdbusplus::xyz::openbmc_project::eStoraged::Error::FilesystemError; |
| 23 | |
| 24 | void eStoraged::format(std::vector<uint8_t> password) |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 25 | { |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 26 | std::string msg = "OpenBMC.0.1.DriveFormat"; |
| 27 | lg2::info("Starting format", "REDFISH_MESSAGE_ID", msg); |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 28 | |
| 29 | struct crypt_device* cryptDev; |
| 30 | CryptHandle cryptHandle(&cryptDev, devPath.c_str()); |
| 31 | if (*cryptHandle.handle == nullptr) |
| 32 | { |
| 33 | lg2::error("Failed to initialize crypt device", "REDFISH_MESSAGE_ID", |
| 34 | std::string("OpenBMC.0.1.FormatFail")); |
| 35 | throw EncryptionError(); |
| 36 | } |
| 37 | |
| 38 | formatLuksDev(cryptDev, password); |
| 39 | activateLuksDev(cryptDev, password); |
| 40 | |
| 41 | createFilesystem(); |
| 42 | mountFilesystem(); |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | void eStoraged::erase(std::vector<uint8_t>, EraseMethod) |
| 46 | { |
| 47 | std::cerr << "Erasing encrypted eMMC" << std::endl; |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 48 | std::string msg = "OpenBMC.0.1.DriveErase"; |
| 49 | lg2::info("Starting erase", "REDFISH_MESSAGE_ID", msg); |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | void eStoraged::lock(std::vector<uint8_t>) |
| 53 | { |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 54 | std::string msg = "OpenBMC.0.1.DriveLock"; |
| 55 | lg2::info("Starting lock", "REDFISH_MESSAGE_ID", msg); |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 56 | |
| 57 | unmountFilesystem(); |
| 58 | deactivateLuksDev(); |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 59 | } |
| 60 | |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 61 | void eStoraged::unlock(std::vector<uint8_t> password) |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 62 | { |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 63 | std::string msg = "OpenBMC.0.1.DriveUnlock"; |
| 64 | lg2::info("Starting unlock", "REDFISH_MESSAGE_ID", msg); |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 65 | |
| 66 | struct crypt_device* cryptDev; |
| 67 | CryptHandle cryptHandle(&cryptDev, devPath.c_str()); |
| 68 | if (*cryptHandle.handle == nullptr) |
| 69 | { |
| 70 | lg2::error("Failed to initialize crypt device", "REDFISH_MESSAGE_ID", |
| 71 | std::string("OpenBMC.0.1.UnlockFail")); |
| 72 | throw EncryptionError(); |
| 73 | } |
| 74 | |
| 75 | activateLuksDev(cryptDev, password); |
| 76 | mountFilesystem(); |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | void eStoraged::changePassword(std::vector<uint8_t>, std::vector<uint8_t>) |
| 80 | { |
| 81 | std::cerr << "Changing password for encrypted eMMC" << std::endl; |
John Edward Broadbent | 4e13b0a | 2021-11-15 15:21:59 -0800 | [diff] [blame] | 82 | std::string msg = "OpenBMC.0.1.DrivePasswordChanged"; |
| 83 | lg2::info("Starting change password", "REDFISH_MESSAGE_ID", msg); |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 84 | } |
| 85 | |
John Wedig | b810c92 | 2021-11-17 16:38:03 -0800 | [diff] [blame^] | 86 | bool eStoraged::isLocked() const |
| 87 | { |
| 88 | return locked(); |
| 89 | } |
| 90 | |
| 91 | std::string_view eStoraged::getMountPoint() const |
| 92 | { |
| 93 | return mountPoint; |
| 94 | } |
| 95 | |
| 96 | void eStoraged::formatLuksDev(struct crypt_device* cd, |
| 97 | std::vector<uint8_t> password) |
| 98 | { |
| 99 | lg2::info("Formatting device {DEV}", "DEV", devPath, "REDFISH_MESSAGE_ID", |
| 100 | std::string("OpenBMC.0.1.FormatLuksDev")); |
| 101 | |
| 102 | /* Generate the volume key. */ |
| 103 | const std::size_t keySize = 64; |
| 104 | std::vector<uint8_t> volumeKey(keySize); |
| 105 | if (RAND_bytes(volumeKey.data(), keySize) != 1) |
| 106 | { |
| 107 | lg2::error("Failed to create volume key", "REDFISH_MESSAGE_ID", |
| 108 | std::string("OpenBMC.0.1.FormatLuksDevFail")); |
| 109 | throw EncryptionError(); |
| 110 | } |
| 111 | /* Format the LUKS encrypted device. */ |
| 112 | int retval = |
| 113 | cryptIface->cryptFormat(cd, CRYPT_LUKS2, "aes", "xts-plain64", nullptr, |
| 114 | reinterpret_cast<const char*>(volumeKey.data()), |
| 115 | volumeKey.size(), nullptr); |
| 116 | if (retval < 0) |
| 117 | { |
| 118 | lg2::error("Failed to format encrypted device: {RETVAL}", "RETVAL", |
| 119 | retval, "REDFISH_MESSAGE_ID", |
| 120 | std::string("OpenBMC.0.1.FormatLuksDevFail")); |
| 121 | throw EncryptionError(); |
| 122 | } |
| 123 | |
| 124 | /* Device is now encrypted. */ |
| 125 | locked(true); |
| 126 | |
| 127 | /* Set the password. */ |
| 128 | retval = cryptIface->cryptKeyslotAddByVolumeKey( |
| 129 | cd, CRYPT_ANY_SLOT, nullptr, 0, |
| 130 | reinterpret_cast<const char*>(password.data()), password.size()); |
| 131 | |
| 132 | if (retval < 0) |
| 133 | { |
| 134 | lg2::error("Failed to set encryption password", "REDFISH_MESSAGE_ID", |
| 135 | std::string("OpenBMC.0.1.FormatLuksDevFail")); |
| 136 | throw EncryptionError(); |
| 137 | } |
| 138 | |
| 139 | lg2::info("Encrypted device {DEV} successfully formatted", "DEV", devPath, |
| 140 | "REDFISH_MESSAGE_ID", |
| 141 | std::string("OpenBMC.0.1.FormatLuksDevSuccess")); |
| 142 | } |
| 143 | |
| 144 | void eStoraged::activateLuksDev(struct crypt_device* cd, |
| 145 | std::vector<uint8_t> password) |
| 146 | { |
| 147 | lg2::info("Activating LUKS dev {DEV}", "DEV", devPath, "REDFISH_MESSAGE_ID", |
| 148 | std::string("OpenBMC.0.1.ActivateLuksDev")); |
| 149 | |
| 150 | int retval = cryptIface->cryptLoad(cd, CRYPT_LUKS2, nullptr); |
| 151 | if (retval < 0) |
| 152 | { |
| 153 | lg2::error("Failed to load LUKS header: {RETVAL}", "RETVAL", retval, |
| 154 | "REDFISH_MESSAGE_ID", |
| 155 | std::string("OpenBMC.0.1.ActivateLuksDevFail")); |
| 156 | throw EncryptionError(); |
| 157 | } |
| 158 | |
| 159 | retval = cryptIface->cryptActivateByPassphrase( |
| 160 | cd, containerName.c_str(), CRYPT_ANY_SLOT, |
| 161 | reinterpret_cast<const char*>(password.data()), password.size(), 0); |
| 162 | |
| 163 | if (retval < 0) |
| 164 | { |
| 165 | lg2::error("Failed to activate LUKS dev: {RETVAL}", "RETVAL", retval, |
| 166 | "REDFISH_MESSAGE_ID", |
| 167 | std::string("OpenBMC.0.1.ActivateLuksDevFail")); |
| 168 | throw EncryptionError(); |
| 169 | } |
| 170 | |
| 171 | /* Device is now unlocked. */ |
| 172 | locked(false); |
| 173 | |
| 174 | lg2::info("Successfully activated LUKS dev {DEV}", "DEV", devPath, |
| 175 | "REDFISH_MESSAGE_ID", |
| 176 | std::string("OpenBMC.0.1.ActivateLuksDevSuccess")); |
| 177 | } |
| 178 | |
| 179 | void eStoraged::createFilesystem() |
| 180 | { |
| 181 | /* Run the command to create the filesystem. */ |
| 182 | int retval = fsIface->runMkfs(containerName); |
| 183 | if (retval) |
| 184 | { |
| 185 | lg2::error("Failed to create filesystem: {RETVAL}", "RETVAL", retval, |
| 186 | "REDFISH_MESSAGE_ID", |
| 187 | std::string("OpenBMC.0.1.CreateFilesystemFail")); |
| 188 | throw FilesystemError(); |
| 189 | } |
| 190 | lg2::info("Successfully created filesystem for /dev/mapper/{CONTAINER}", |
| 191 | "CONTAINER", containerName, "REDFISH_MESSAGE_ID", |
| 192 | std::string("OpenBMC.0.1.CreateFilesystemSuccess")); |
| 193 | } |
| 194 | |
| 195 | void eStoraged::mountFilesystem() |
| 196 | { |
| 197 | /* Create directory for the filesystem. */ |
| 198 | bool success = fsIface->createDirectory(std::filesystem::path(mountPoint)); |
| 199 | if (!success) |
| 200 | { |
| 201 | lg2::error("Failed to create mount point: {DIR}", "DIR", mountPoint, |
| 202 | "REDFISH_MESSAGE_ID", |
| 203 | std::string("OpenBMC.0.1.MountFilesystemFail")); |
| 204 | throw FilesystemError(); |
| 205 | } |
| 206 | |
| 207 | /* Run the command to mount the filesystem. */ |
| 208 | std::string luksContainer("/dev/mapper/" + containerName); |
| 209 | int retval = fsIface->doMount(luksContainer.c_str(), mountPoint.c_str(), |
| 210 | "ext4", 0, nullptr); |
| 211 | if (retval) |
| 212 | { |
| 213 | lg2::error("Failed to mount filesystem: {RETVAL}", "RETVAL", retval, |
| 214 | "REDFISH_MESSAGE_ID", |
| 215 | std::string("OpenBMC.0.1.MountFilesystemFail")); |
| 216 | bool removeSuccess = |
| 217 | fsIface->removeDirectory(std::filesystem::path(mountPoint)); |
| 218 | if (!removeSuccess) |
| 219 | { |
| 220 | lg2::error("Failed to remove mount point: {DIR}", "DIR", mountPoint, |
| 221 | "REDFISH_MESSAGE_ID", |
| 222 | std::string("OpenBMC.0.1.MountFilesystemFail")); |
| 223 | } |
| 224 | throw FilesystemError(); |
| 225 | } |
| 226 | |
| 227 | lg2::info("Successfully mounted filesystem at {DIR}", "DIR", mountPoint, |
| 228 | "REDFISH_MESSAGE_ID", |
| 229 | std::string("OpenBMC.0.1.MountFilesystemSuccess")); |
| 230 | } |
| 231 | |
| 232 | void eStoraged::unmountFilesystem() |
| 233 | { |
| 234 | int retval = fsIface->doUnmount(mountPoint.c_str()); |
| 235 | if (retval) |
| 236 | { |
| 237 | lg2::error("Failed to unmount filesystem: {RETVAL}", "RETVAL", retval, |
| 238 | "REDFISH_MESSAGE_ID", |
| 239 | std::string("OpenBMC.0.1.UnmountFilesystemFail")); |
| 240 | throw FilesystemError(); |
| 241 | } |
| 242 | |
| 243 | /* Remove the mount point. */ |
| 244 | bool success = fsIface->removeDirectory(std::filesystem::path(mountPoint)); |
| 245 | if (!success) |
| 246 | { |
| 247 | lg2::error("Failed to remove mount point {DIR}", "DIR", mountPoint, |
| 248 | "REDFISH_MESSAGE_ID", |
| 249 | std::string("OpenBMC.0.1.UnmountFilesystemFail")); |
| 250 | throw FilesystemError(); |
| 251 | } |
| 252 | |
| 253 | lg2::info("Successfully unmounted filesystem at {DIR}", "DIR", mountPoint, |
| 254 | "REDFISH_MESSAGE_ID", |
| 255 | std::string("OpenBMC.0.1.MountFilesystemSuccess")); |
| 256 | } |
| 257 | |
| 258 | void eStoraged::deactivateLuksDev() |
| 259 | { |
| 260 | lg2::info("Deactivating LUKS device {DEV}", "DEV", devPath, |
| 261 | "REDFISH_MESSAGE_ID", |
| 262 | std::string("OpenBMC.0.1.DeactivateLuksDev")); |
| 263 | |
| 264 | int retval = cryptIface->cryptDeactivate(nullptr, containerName.c_str()); |
| 265 | if (retval < 0) |
| 266 | { |
| 267 | lg2::error("Failed to deactivate crypt device: {RETVAL}", "RETVAL", |
| 268 | retval, "REDFISH_MESSAGE_ID", |
| 269 | std::string("OpenBMC.0.1.DeactivateLuksDevFail")); |
| 270 | throw EncryptionError(); |
| 271 | } |
| 272 | |
| 273 | /* Device is now locked. */ |
| 274 | locked(true); |
| 275 | |
| 276 | lg2::info("Successfully deactivated LUKS device {DEV}", "DEV", devPath, |
| 277 | "REDFISH_MESSAGE_ID", |
| 278 | std::string("OpenBMC.0.1.DeactivateLuksDevSuccess")); |
| 279 | } |
| 280 | |
John Wedig | 2098dab | 2021-09-14 13:56:28 -0700 | [diff] [blame] | 281 | } // namespace estoraged |