Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 1 | #include "file_io_type_cert.hpp" |
| 2 | |
George Liu | 6492f52 | 2020-06-16 10:34:05 +0800 | [diff] [blame] | 3 | #include "libpldm/base.h" |
| 4 | #include "oem/ibm/libpldm/file_io.h" |
| 5 | |
Deepak Kodihalli | d130e1a | 2020-06-17 05:55:32 -0500 | [diff] [blame] | 6 | #include "common/utils.hpp" |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 7 | |
| 8 | #include <stdint.h> |
| 9 | |
| 10 | #include <iostream> |
| 11 | |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 12 | namespace pldm |
| 13 | { |
| 14 | namespace responder |
| 15 | { |
| 16 | |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 17 | static constexpr auto certFilePath = "/var/lib/ibm/bmcweb/"; |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 18 | |
| 19 | CertMap CertHandler::certMap; |
| 20 | |
| 21 | int CertHandler::writeFromMemory(uint32_t offset, uint32_t length, |
Sampa Misra | 6950850 | 2020-09-08 00:08:21 -0500 | [diff] [blame] | 22 | uint64_t address, |
| 23 | oem_platform::Handler* /*oemPlatformHandler*/) |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 24 | { |
| 25 | auto it = certMap.find(certType); |
| 26 | if (it == certMap.end()) |
| 27 | { |
| 28 | std::cerr << "file for type " << certType << " doesn't exist\n"; |
| 29 | return PLDM_ERROR; |
| 30 | } |
| 31 | |
| 32 | auto fd = std::get<0>(it->second); |
| 33 | auto& remSize = std::get<1>(it->second); |
| 34 | auto rc = transferFileData(fd, false, offset, length, address); |
| 35 | if (rc == PLDM_SUCCESS) |
| 36 | { |
| 37 | remSize -= length; |
| 38 | if (!remSize) |
| 39 | { |
| 40 | close(fd); |
| 41 | certMap.erase(it); |
| 42 | } |
| 43 | } |
| 44 | return rc; |
| 45 | } |
| 46 | |
| 47 | int CertHandler::readIntoMemory(uint32_t offset, uint32_t& length, |
Sampa Misra | 6950850 | 2020-09-08 00:08:21 -0500 | [diff] [blame] | 48 | uint64_t address, |
| 49 | oem_platform::Handler* /*oemPlatformHandler*/) |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 50 | { |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 51 | std::string filePath = certFilePath; |
| 52 | filePath += "CSR_" + std::to_string(fileHandle); |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 53 | if (certType != PLDM_FILE_TYPE_CERT_SIGNING_REQUEST) |
| 54 | { |
| 55 | return PLDM_ERROR_INVALID_DATA; |
| 56 | } |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 57 | auto rc = transferFileData(filePath.c_str(), true, offset, length, address); |
| 58 | fs::remove(filePath); |
| 59 | if (rc) |
| 60 | { |
| 61 | return PLDM_ERROR; |
| 62 | } |
| 63 | return PLDM_SUCCESS; |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 64 | } |
| 65 | |
Sampa Misra | 6950850 | 2020-09-08 00:08:21 -0500 | [diff] [blame] | 66 | int CertHandler::read(uint32_t offset, uint32_t& length, Response& response, |
| 67 | oem_platform::Handler* /*oemPlatformHandler*/) |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 68 | { |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 69 | std::string filePath = certFilePath; |
| 70 | filePath += "CSR_" + std::to_string(fileHandle); |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 71 | if (certType != PLDM_FILE_TYPE_CERT_SIGNING_REQUEST) |
| 72 | { |
| 73 | return PLDM_ERROR_INVALID_DATA; |
| 74 | } |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 75 | auto rc = readFile(filePath.c_str(), offset, length, response); |
| 76 | fs::remove(filePath); |
| 77 | if (rc) |
| 78 | { |
| 79 | return PLDM_ERROR; |
| 80 | } |
| 81 | return PLDM_SUCCESS; |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 82 | } |
| 83 | |
Sampa Misra | 6950850 | 2020-09-08 00:08:21 -0500 | [diff] [blame] | 84 | int CertHandler::write(const char* buffer, uint32_t offset, uint32_t& length, |
| 85 | oem_platform::Handler* /*oemPlatformHandler*/) |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 86 | { |
| 87 | auto it = certMap.find(certType); |
| 88 | if (it == certMap.end()) |
| 89 | { |
| 90 | std::cerr << "file for type " << certType << " doesn't exist\n"; |
| 91 | return PLDM_ERROR; |
| 92 | } |
| 93 | |
| 94 | auto fd = std::get<0>(it->second); |
| 95 | int rc = lseek(fd, offset, SEEK_SET); |
| 96 | if (rc == -1) |
| 97 | { |
| 98 | std::cerr << "lseek failed, ERROR=" << errno << ", OFFSET=" << offset |
| 99 | << "\n"; |
| 100 | return PLDM_ERROR; |
| 101 | } |
| 102 | rc = ::write(fd, buffer, length); |
| 103 | if (rc == -1) |
| 104 | { |
| 105 | std::cerr << "file write failed, ERROR=" << errno |
| 106 | << ", LENGTH=" << length << ", OFFSET=" << offset << "\n"; |
| 107 | return PLDM_ERROR; |
| 108 | } |
| 109 | length = rc; |
| 110 | auto& remSize = std::get<1>(it->second); |
| 111 | remSize -= length; |
| 112 | if (!remSize) |
| 113 | { |
| 114 | close(fd); |
| 115 | certMap.erase(it); |
| 116 | } |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 117 | |
| 118 | if (certType == PLDM_FILE_TYPE_SIGNED_CERT) |
| 119 | { |
| 120 | constexpr auto certObjPath = "/xyz/openbmc_project/certs/ca/entry/"; |
| 121 | constexpr auto certEntryIntf = "xyz.openbmc_project.Certs.Entry"; |
| 122 | |
| 123 | std::string filePath = certFilePath; |
| 124 | filePath += "ClientCert_" + std::to_string(fileHandle); |
| 125 | |
| 126 | std::ifstream inFile; |
| 127 | inFile.open(filePath); |
| 128 | std::stringstream strStream; |
| 129 | strStream << inFile.rdbuf(); |
| 130 | std::string str = strStream.str(); |
| 131 | inFile.close(); |
| 132 | |
| 133 | if (!str.empty()) |
| 134 | { |
| 135 | PropertyValue value{str}; |
| 136 | |
| 137 | DBusMapping dbusMapping{certObjPath + std::to_string(fileHandle), |
| 138 | certEntryIntf, "ClientCertificate", |
| 139 | "string"}; |
| 140 | try |
| 141 | { |
| 142 | pldm::utils::DBusHandler().setDbusProperty(dbusMapping, value); |
| 143 | } |
| 144 | catch (const std::exception& e) |
| 145 | { |
| 146 | std::cerr << "failed to set Client certificate, " |
| 147 | "ERROR=" |
| 148 | << e.what() << "\n"; |
| 149 | return PLDM_ERROR; |
| 150 | } |
| 151 | PropertyValue valueStatus{ |
| 152 | "xyz.openbmc_project.Certs.Entry.State.Complete"}; |
| 153 | DBusMapping dbusMappingStatus{certObjPath + |
| 154 | std::to_string(fileHandle), |
| 155 | certEntryIntf, "Status", "string"}; |
| 156 | try |
| 157 | { |
| 158 | pldm::utils::DBusHandler().setDbusProperty(dbusMappingStatus, |
| 159 | valueStatus); |
| 160 | } |
| 161 | catch (const std::exception& e) |
| 162 | { |
| 163 | std::cerr |
| 164 | << "failed to set status property of certicate entry, " |
| 165 | "ERROR=" |
| 166 | << e.what() << "\n"; |
| 167 | return PLDM_ERROR; |
| 168 | } |
| 169 | fs::remove(filePath); |
| 170 | } |
| 171 | else |
| 172 | { |
| 173 | PropertyValue value{"xyz.openbmc_project.Certs.Entry.State.BadCSR"}; |
| 174 | DBusMapping dbusMapping{certObjPath + std::to_string(fileHandle), |
| 175 | certEntryIntf, "Status", "string"}; |
| 176 | try |
| 177 | { |
| 178 | pldm::utils::DBusHandler().setDbusProperty(dbusMapping, value); |
| 179 | } |
| 180 | catch (const std::exception& e) |
| 181 | { |
| 182 | std::cerr |
| 183 | << "failed to set status property of certicate entry, " |
| 184 | "ERROR=" |
| 185 | << e.what() << "\n"; |
| 186 | return PLDM_ERROR; |
| 187 | } |
| 188 | } |
| 189 | } |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 190 | return PLDM_SUCCESS; |
| 191 | } |
| 192 | |
| 193 | int CertHandler::newFileAvailable(uint64_t length) |
| 194 | { |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 195 | fs::create_directories(certFilePath); |
| 196 | fs::permissions(certFilePath, |
| 197 | fs::perms::others_read | fs::perms::owner_write); |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 198 | int fileFd = -1; |
| 199 | int flags = O_WRONLY | O_CREAT | O_TRUNC; |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 200 | std::string filePath = certFilePath; |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 201 | |
| 202 | if (certType == PLDM_FILE_TYPE_CERT_SIGNING_REQUEST) |
| 203 | { |
| 204 | return PLDM_ERROR_INVALID_DATA; |
| 205 | } |
| 206 | if (certType == PLDM_FILE_TYPE_SIGNED_CERT) |
| 207 | { |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 208 | fileFd = open( |
| 209 | (filePath + "ClientCert_" + std::to_string(fileHandle)).c_str(), |
| 210 | flags, S_IRUSR | S_IWUSR); |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 211 | } |
| 212 | else if (certType == PLDM_FILE_TYPE_ROOT_CERT) |
| 213 | { |
Varsha Kaverappa | 219ace9 | 2021-04-01 02:50:11 -0500 | [diff] [blame] | 214 | fileFd = |
| 215 | open((filePath + "RootCert").c_str(), flags, S_IRUSR | S_IWUSR); |
Sampa Misra | d823cc0 | 2020-03-24 04:53:20 -0500 | [diff] [blame] | 216 | } |
| 217 | if (fileFd == -1) |
| 218 | { |
| 219 | std::cerr << "failed to open file for type " << certType |
| 220 | << " ERROR=" << errno << "\n"; |
| 221 | return PLDM_ERROR; |
| 222 | } |
| 223 | certMap.emplace(certType, std::tuple(fileFd, length)); |
| 224 | return PLDM_SUCCESS; |
| 225 | } |
| 226 | |
| 227 | } // namespace responder |
| 228 | } // namespace pldm |