Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 1 | #include "message_parsers.hpp" |
| 2 | |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 3 | #include "endian.hpp" |
| 4 | #include "main.hpp" |
| 5 | #include "message.hpp" |
| 6 | #include "sessions_manager.hpp" |
| 7 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 8 | #include <iostream> |
| 9 | #include <memory> |
| 10 | |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 11 | namespace message |
| 12 | { |
| 13 | |
| 14 | namespace parser |
| 15 | { |
| 16 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 17 | std::tuple<std::shared_ptr<Message>, SessionHeader> |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 18 | unflatten(std::vector<uint8_t>& inPacket) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 19 | { |
| 20 | // Check if the packet has atleast the size of the RMCP Header |
| 21 | if (inPacket.size() < sizeof(BasicHeader_t)) |
| 22 | { |
| 23 | throw std::runtime_error("RMCP Header missing"); |
| 24 | } |
| 25 | |
| 26 | auto rmcpHeaderPtr = reinterpret_cast<BasicHeader_t*>(inPacket.data()); |
| 27 | |
| 28 | // Verify if the fields in the RMCP header conforms to the specification |
| 29 | if ((rmcpHeaderPtr->version != RMCP_VERSION) || |
| 30 | (rmcpHeaderPtr->rmcpSeqNum != RMCP_SEQ) || |
| 31 | (rmcpHeaderPtr->classOfMsg != RMCP_MESSAGE_CLASS_IPMI)) |
| 32 | { |
| 33 | throw std::runtime_error("RMCP Header is invalid"); |
| 34 | } |
| 35 | |
| 36 | // Read the Session Header and invoke the parser corresponding to the |
| 37 | // header type |
| 38 | switch (static_cast<SessionHeader>(rmcpHeaderPtr->format.formatType)) |
| 39 | { |
| 40 | case SessionHeader::IPMI15: |
| 41 | { |
| 42 | return std::make_tuple(ipmi15parser::unflatten(inPacket), |
| 43 | SessionHeader::IPMI15); |
| 44 | } |
| 45 | case SessionHeader::IPMI20: |
| 46 | { |
| 47 | return std::make_tuple(ipmi20parser::unflatten(inPacket), |
| 48 | SessionHeader::IPMI20); |
| 49 | } |
| 50 | default: |
| 51 | { |
| 52 | throw std::runtime_error("Invalid Session Header"); |
| 53 | } |
| 54 | } |
| 55 | } |
| 56 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 57 | std::vector<uint8_t> flatten(std::shared_ptr<Message> outMessage, |
Vernon Mauery | 224f36a | 2018-10-25 08:52:23 -0700 | [diff] [blame] | 58 | SessionHeader authType, |
| 59 | std::shared_ptr<session::Session> session) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 60 | { |
| 61 | // Call the flatten routine based on the header type |
| 62 | switch (authType) |
| 63 | { |
| 64 | case SessionHeader::IPMI15: |
| 65 | { |
| 66 | return ipmi15parser::flatten(outMessage, session); |
| 67 | } |
| 68 | case SessionHeader::IPMI20: |
| 69 | { |
| 70 | return ipmi20parser::flatten(outMessage, session); |
| 71 | } |
| 72 | default: |
| 73 | { |
| 74 | return {}; |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | } // namespace parser |
| 80 | |
| 81 | namespace ipmi15parser |
| 82 | { |
| 83 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 84 | std::shared_ptr<Message> unflatten(std::vector<uint8_t>& inPacket) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 85 | { |
| 86 | // Check if the packet has atleast the Session Header |
| 87 | if (inPacket.size() < sizeof(SessionHeader_t)) |
| 88 | { |
| 89 | throw std::runtime_error("IPMI1.5 Session Header Missing"); |
| 90 | } |
| 91 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 92 | auto message = std::make_shared<Message>(); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 93 | |
| 94 | auto header = reinterpret_cast<SessionHeader_t*>(inPacket.data()); |
| 95 | |
| 96 | message->payloadType = PayloadType::IPMI; |
Tom Joseph | 6a56076 | 2017-01-10 15:30:28 +0530 | [diff] [blame] | 97 | message->bmcSessionID = endian::from_ipmi(header->sessId); |
| 98 | message->sessionSeqNum = endian::from_ipmi(header->sessSeqNum); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 99 | message->isPacketEncrypted = false; |
| 100 | message->isPacketAuthenticated = false; |
| 101 | |
| 102 | auto payloadLen = header->payloadLength; |
| 103 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 104 | (message->payload) |
| 105 | .assign(inPacket.data() + sizeof(SessionHeader_t), |
| 106 | inPacket.data() + sizeof(SessionHeader_t) + payloadLen); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 107 | |
| 108 | return message; |
| 109 | } |
| 110 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 111 | std::vector<uint8_t> flatten(std::shared_ptr<Message> outMessage, |
Vernon Mauery | 224f36a | 2018-10-25 08:52:23 -0700 | [diff] [blame] | 112 | std::shared_ptr<session::Session> session) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 113 | { |
| 114 | std::vector<uint8_t> packet(sizeof(SessionHeader_t)); |
| 115 | |
| 116 | // Insert Session Header into the Packet |
| 117 | auto header = reinterpret_cast<SessionHeader_t*>(packet.data()); |
| 118 | header->base.version = parser::RMCP_VERSION; |
| 119 | header->base.reserved = 0x00; |
| 120 | header->base.rmcpSeqNum = parser::RMCP_SEQ; |
| 121 | header->base.classOfMsg = parser::RMCP_MESSAGE_CLASS_IPMI; |
| 122 | header->base.format.formatType = |
| 123 | static_cast<uint8_t>(parser::SessionHeader::IPMI15); |
| 124 | header->sessSeqNum = 0; |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 125 | header->sessId = endian::to_ipmi(outMessage->rcSessionID); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 126 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 127 | header->payloadLength = static_cast<uint8_t>(outMessage->payload.size()); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 128 | |
| 129 | // Insert the Payload into the Packet |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 130 | packet.insert(packet.end(), outMessage->payload.begin(), |
| 131 | outMessage->payload.end()); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 132 | |
| 133 | // Insert the Session Trailer |
| 134 | packet.resize(packet.size() + sizeof(SessionTrailer_t)); |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 135 | auto trailer = |
| 136 | reinterpret_cast<SessionTrailer_t*>(packet.data() + packet.size()); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 137 | trailer->legacyPad = 0x00; |
| 138 | |
| 139 | return packet; |
| 140 | } |
| 141 | |
| 142 | } // namespace ipmi15parser |
| 143 | |
| 144 | namespace ipmi20parser |
| 145 | { |
| 146 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 147 | std::shared_ptr<Message> unflatten(std::vector<uint8_t>& inPacket) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 148 | { |
| 149 | // Check if the packet has atleast the Session Header |
| 150 | if (inPacket.size() < sizeof(SessionHeader_t)) |
| 151 | { |
| 152 | throw std::runtime_error("IPMI2.0 Session Header Missing"); |
| 153 | } |
| 154 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 155 | auto message = std::make_shared<Message>(); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 156 | |
| 157 | auto header = reinterpret_cast<SessionHeader_t*>(inPacket.data()); |
| 158 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 159 | message->payloadType = static_cast<PayloadType>(header->payloadType & 0x3F); |
Tom Joseph | 6a56076 | 2017-01-10 15:30:28 +0530 | [diff] [blame] | 160 | message->bmcSessionID = endian::from_ipmi(header->sessId); |
| 161 | message->sessionSeqNum = endian::from_ipmi(header->sessSeqNum); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 162 | message->isPacketEncrypted = |
| 163 | ((header->payloadType & PAYLOAD_ENCRYPT_MASK) ? true : false); |
| 164 | message->isPacketAuthenticated = |
| 165 | ((header->payloadType & PAYLOAD_AUTH_MASK) ? true : false); |
| 166 | |
Tom Joseph | 6a56076 | 2017-01-10 15:30:28 +0530 | [diff] [blame] | 167 | auto payloadLen = endian::from_ipmi(header->payloadLength); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 168 | |
Tom Joseph | 5fa487c | 2017-01-20 12:42:39 +0530 | [diff] [blame] | 169 | if (message->isPacketAuthenticated) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 170 | { |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 171 | if (!(internal::verifyPacketIntegrity(inPacket, message, payloadLen))) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 172 | { |
| 173 | throw std::runtime_error("Packet Integrity check failed"); |
| 174 | } |
| 175 | } |
| 176 | |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 177 | // Decrypt the payload if the payload is encrypted |
| 178 | if (message->isPacketEncrypted) |
| 179 | { |
| 180 | // Assign the decrypted payload to the IPMI Message |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 181 | message->payload = |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 182 | internal::decryptPayload(inPacket, message, payloadLen); |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 183 | } |
| 184 | else |
| 185 | { |
| 186 | message->payload.assign(inPacket.begin() + sizeof(SessionHeader_t), |
| 187 | inPacket.begin() + sizeof(SessionHeader_t) + |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 188 | payloadLen); |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 189 | } |
| 190 | |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 191 | return message; |
| 192 | } |
| 193 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 194 | std::vector<uint8_t> flatten(std::shared_ptr<Message> outMessage, |
Vernon Mauery | 224f36a | 2018-10-25 08:52:23 -0700 | [diff] [blame] | 195 | std::shared_ptr<session::Session> session) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 196 | { |
| 197 | std::vector<uint8_t> packet(sizeof(SessionHeader_t)); |
| 198 | |
| 199 | SessionHeader_t* header = reinterpret_cast<SessionHeader_t*>(packet.data()); |
| 200 | header->base.version = parser::RMCP_VERSION; |
| 201 | header->base.reserved = 0x00; |
| 202 | header->base.rmcpSeqNum = parser::RMCP_SEQ; |
| 203 | header->base.classOfMsg = parser::RMCP_MESSAGE_CLASS_IPMI; |
| 204 | header->base.format.formatType = |
| 205 | static_cast<uint8_t>(parser::SessionHeader::IPMI20); |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 206 | header->payloadType = static_cast<uint8_t>(outMessage->payloadType); |
| 207 | header->sessId = endian::to_ipmi(outMessage->rcSessionID); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 208 | |
| 209 | // Add session sequence number |
| 210 | internal::addSequenceNumber(packet, session); |
| 211 | |
Tom Joseph | 1404bca | 2017-01-26 14:17:02 +0530 | [diff] [blame] | 212 | size_t payloadLen = 0; |
| 213 | |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 214 | // Encrypt the payload if needed |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 215 | if (outMessage->isPacketEncrypted) |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 216 | { |
| 217 | header->payloadType |= PAYLOAD_ENCRYPT_MASK; |
| 218 | auto cipherPayload = internal::encryptPayload(outMessage); |
| 219 | payloadLen = cipherPayload.size(); |
| 220 | header->payloadLength = endian::to_ipmi<uint16_t>(cipherPayload.size()); |
| 221 | |
| 222 | // Insert the encrypted payload into the outgoing IPMI packet |
| 223 | packet.insert(packet.end(), cipherPayload.begin(), cipherPayload.end()); |
| 224 | } |
| 225 | else |
| 226 | { |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 227 | header->payloadLength = |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 228 | endian::to_ipmi<uint16_t>(outMessage->payload.size()); |
| 229 | payloadLen = outMessage->payload.size(); |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 230 | |
| 231 | // Insert the Payload into the Packet |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 232 | packet.insert(packet.end(), outMessage->payload.begin(), |
| 233 | outMessage->payload.end()); |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 234 | } |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 235 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 236 | if (outMessage->isPacketAuthenticated) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 237 | { |
Tom Joseph | 1404bca | 2017-01-26 14:17:02 +0530 | [diff] [blame] | 238 | internal::addIntegrityData(packet, outMessage, payloadLen); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 239 | } |
| 240 | |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 241 | return packet; |
| 242 | } |
| 243 | |
| 244 | namespace internal |
| 245 | { |
| 246 | |
Vernon Mauery | 224f36a | 2018-10-25 08:52:23 -0700 | [diff] [blame] | 247 | void addSequenceNumber(std::vector<uint8_t>& packet, |
| 248 | std::shared_ptr<session::Session> session) |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 249 | { |
| 250 | SessionHeader_t* header = reinterpret_cast<SessionHeader_t*>(packet.data()); |
| 251 | |
| 252 | if (header->sessId == session::SESSION_ZERO) |
| 253 | { |
| 254 | header->sessSeqNum = 0x00; |
| 255 | } |
| 256 | else |
| 257 | { |
Vernon Mauery | 224f36a | 2018-10-25 08:52:23 -0700 | [diff] [blame] | 258 | auto seqNum = session->sequenceNums.increment(); |
Tom Joseph | 6a56076 | 2017-01-10 15:30:28 +0530 | [diff] [blame] | 259 | header->sessSeqNum = endian::to_ipmi(seqNum); |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 260 | } |
| 261 | } |
| 262 | |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 263 | bool verifyPacketIntegrity(const std::vector<uint8_t>& packet, |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 264 | const std::shared_ptr<Message> message, |
| 265 | size_t payloadLen) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 266 | { |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 267 | /* |
| 268 | * Padding bytes are added to cause the number of bytes in the data range |
| 269 | * covered by the AuthCode(Integrity Data) field to be a multiple of 4 bytes |
| 270 | * .If present each integrity Pad byte is set to FFh. The following logic |
| 271 | * calculates the number of padding bytes added in the IPMI packet. |
| 272 | */ |
Tom Joseph | 5a2d3ce | 2017-02-01 20:18:37 +0530 | [diff] [blame] | 273 | auto paddingLen = 4 - ((payloadLen + 2) & 3); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 274 | |
| 275 | auto sessTrailerPos = sizeof(SessionHeader_t) + payloadLen + paddingLen; |
| 276 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 277 | auto trailer = reinterpret_cast<const SessionTrailer_t*>(packet.data() + |
| 278 | sessTrailerPos); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 279 | |
| 280 | // Check trailer->padLength against paddingLen, both should match up, |
| 281 | // return false if the lengths don't match |
Tom Joseph | 5fa487c | 2017-01-20 12:42:39 +0530 | [diff] [blame] | 282 | if (trailer->padLength != paddingLen) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 283 | { |
| 284 | return false; |
| 285 | } |
| 286 | |
Vernon Mauery | ae1fda4 | 2018-10-15 12:55:34 -0700 | [diff] [blame] | 287 | auto session = std::get<session::Manager&>(singletonPool) |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 288 | .getSession(message->bmcSessionID); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 289 | |
| 290 | auto integrityAlgo = session->getIntegrityAlgo(); |
| 291 | |
| 292 | // Check if Integrity data length is as expected, check integrity data |
| 293 | // length is same as the length expected for the Integrity Algorithm that |
| 294 | // was negotiated during the session open process. |
Tom Joseph | 5fa487c | 2017-01-20 12:42:39 +0530 | [diff] [blame] | 295 | if ((packet.size() - sessTrailerPos - sizeof(SessionTrailer_t)) != |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 296 | integrityAlgo->authCodeLength) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 297 | { |
| 298 | return false; |
| 299 | } |
| 300 | |
| 301 | auto integrityIter = packet.cbegin(); |
| 302 | std::advance(integrityIter, sessTrailerPos + sizeof(SessionTrailer_t)); |
| 303 | |
| 304 | // The integrity data is calculated from the AuthType/Format field up to and |
| 305 | // including the field that immediately precedes the AuthCode field itself. |
| 306 | size_t length = packet.size() - integrityAlgo->authCodeLength - |
| 307 | message::parser::RMCP_SESSION_HEADER_SIZE; |
| 308 | |
| 309 | return integrityAlgo->verifyIntegrityData(packet, length, integrityIter); |
| 310 | } |
| 311 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 312 | void addIntegrityData(std::vector<uint8_t>& packet, |
| 313 | const std::shared_ptr<Message> message, size_t payloadLen) |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 314 | { |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 315 | // The following logic calculates the number of padding bytes to be added to |
| 316 | // IPMI packet. If needed each integrity Pad byte is set to FFh. |
Tom Joseph | 5a2d3ce | 2017-02-01 20:18:37 +0530 | [diff] [blame] | 317 | auto paddingLen = 4 - ((payloadLen + 2) & 3); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 318 | packet.insert(packet.end(), paddingLen, 0xFF); |
| 319 | |
| 320 | packet.resize(packet.size() + sizeof(SessionTrailer_t)); |
| 321 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 322 | auto trailer = reinterpret_cast<SessionTrailer_t*>( |
| 323 | packet.data() + packet.size() - sizeof(SessionTrailer_t)); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 324 | |
| 325 | trailer->padLength = paddingLen; |
| 326 | trailer->nextHeader = parser::RMCP_MESSAGE_CLASS_IPMI; |
| 327 | |
Vernon Mauery | ae1fda4 | 2018-10-15 12:55:34 -0700 | [diff] [blame] | 328 | auto session = std::get<session::Manager&>(singletonPool) |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 329 | .getSession(message->bmcSessionID); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 330 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 331 | auto integrityData = |
| 332 | session->getIntegrityAlgo()->generateIntegrityData(packet); |
Tom Joseph | 64703f4 | 2017-01-10 17:03:48 +0530 | [diff] [blame] | 333 | |
| 334 | packet.insert(packet.end(), integrityData.begin(), integrityData.end()); |
| 335 | } |
| 336 | |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 337 | std::vector<uint8_t> decryptPayload(const std::vector<uint8_t>& packet, |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 338 | const std::shared_ptr<Message> message, |
| 339 | size_t payloadLen) |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 340 | { |
Vernon Mauery | ae1fda4 | 2018-10-15 12:55:34 -0700 | [diff] [blame] | 341 | auto session = std::get<session::Manager&>(singletonPool) |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 342 | .getSession(message->bmcSessionID); |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 343 | |
Vernon Mauery | 9e801a2 | 2018-10-12 13:20:49 -0700 | [diff] [blame] | 344 | return session->getCryptAlgo()->decryptPayload( |
| 345 | packet, sizeof(SessionHeader_t), payloadLen); |
Tom Joseph | 78478a8 | 2017-01-26 14:24:29 +0530 | [diff] [blame] | 346 | } |
| 347 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 348 | std::vector<uint8_t> encryptPayload(std::shared_ptr<Message> message) |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 349 | { |
Vernon Mauery | ae1fda4 | 2018-10-15 12:55:34 -0700 | [diff] [blame] | 350 | auto session = std::get<session::Manager&>(singletonPool) |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 351 | .getSession(message->bmcSessionID); |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 352 | |
Vernon Mauery | d999ffc | 2018-10-25 09:16:05 -0700 | [diff] [blame] | 353 | return session->getCryptAlgo()->encryptPayload(message->payload); |
Tom Joseph | 7536283 | 2017-01-26 15:17:04 +0530 | [diff] [blame] | 354 | } |
| 355 | |
Tom Joseph | 4e57ada | 2016-08-10 06:51:12 -0500 | [diff] [blame] | 356 | } // namespace internal |
| 357 | |
| 358 | } // namespace ipmi20parser |
| 359 | |
| 360 | } // namespace message |