Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 Google Inc. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "config.h" |
| 18 | |
| 19 | #include "ipmi.hpp" |
| 20 | #include "process.hpp" |
Patrick Venture | 5100a38 | 2018-09-27 10:40:50 -0700 | [diff] [blame] | 21 | #include "utils.hpp" |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 22 | |
| 23 | #include <host-ipmid/ipmid-api.h> |
| 24 | |
| 25 | #include <cstdio> |
| 26 | #include <host-ipmid/iana.hpp> |
| 27 | #include <host-ipmid/oemrouter.hpp> |
| 28 | #include <memory> |
Benjamin Fair | 1c4d3d3 | 2018-10-19 17:22:53 -0700 | [diff] [blame] | 29 | #include <phosphor-logging/log.hpp> |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 30 | |
| 31 | /* TODO: Swap out once https://gerrit.openbmc-project.xyz/12743 is merged */ |
| 32 | namespace oem |
| 33 | { |
| 34 | constexpr auto blobTransferCmd = 128; |
| 35 | } // namespace oem |
| 36 | |
| 37 | namespace blobs |
| 38 | { |
| 39 | |
Benjamin Fair | 1c4d3d3 | 2018-10-19 17:22:53 -0700 | [diff] [blame] | 40 | using namespace phosphor::logging; |
| 41 | |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 42 | static ipmi_ret_t handleBlobCommand(ipmi_cmd_t cmd, const uint8_t* reqBuf, |
| 43 | uint8_t* replyCmdBuf, size_t* dataLen) |
| 44 | { |
| 45 | /* It's holding at least a sub-command. The OEN is trimmed from the bytes |
| 46 | * before this is called. |
| 47 | */ |
| 48 | if ((*dataLen) < 1) |
| 49 | { |
Patrick Venture | 4125880 | 2018-11-12 10:46:30 -0800 | [diff] [blame] | 50 | return IPMI_CC_REQ_DATA_LEN_INVALID; |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 51 | } |
| 52 | |
Patrick Venture | 4125880 | 2018-11-12 10:46:30 -0800 | [diff] [blame] | 53 | /* on failure rc is set to the corresponding IPMI error. */ |
| 54 | ipmi_ret_t rc = IPMI_CC_OK; |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 55 | Crc16 crc; |
| 56 | IpmiBlobHandler command = |
Patrick Venture | 4125880 | 2018-11-12 10:46:30 -0800 | [diff] [blame] | 57 | validateBlobCommand(&crc, reqBuf, replyCmdBuf, dataLen, &rc); |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 58 | if (command == nullptr) |
| 59 | { |
Patrick Venture | 4125880 | 2018-11-12 10:46:30 -0800 | [diff] [blame] | 60 | return rc; |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 61 | } |
| 62 | |
Patrick Venture | 73eb687 | 2018-10-01 18:37:34 -0700 | [diff] [blame] | 63 | return processBlobCommand(command, getBlobManager(), &crc, reqBuf, |
| 64 | replyCmdBuf, dataLen); |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 65 | } |
| 66 | |
Patrick Venture | 5100a38 | 2018-09-27 10:40:50 -0700 | [diff] [blame] | 67 | /* TODO: this should come from the makefile or recipe... */ |
Patrick Venture | df53de1 | 2018-11-08 10:29:50 -0800 | [diff] [blame] | 68 | constexpr auto expectedHandlerPath = "/usr/lib/blob-ipmid"; |
Patrick Venture | 5100a38 | 2018-09-27 10:40:50 -0700 | [diff] [blame] | 69 | |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 70 | void setupBlobGlobalHandler() __attribute__((constructor)); |
| 71 | |
| 72 | void setupBlobGlobalHandler() |
| 73 | { |
| 74 | oem::Router* oemRouter = oem::mutableRouter(); |
| 75 | std::fprintf(stderr, |
| 76 | "Registering OEM:[%#08X], Cmd:[%#04X] for Blob Commands\n", |
| 77 | oem::obmcOemNumber, oem::blobTransferCmd); |
| 78 | |
| 79 | oemRouter->registerHandler(oem::obmcOemNumber, oem::blobTransferCmd, |
| 80 | handleBlobCommand); |
| 81 | |
Patrick Venture | 5100a38 | 2018-09-27 10:40:50 -0700 | [diff] [blame] | 82 | /* Install handlers. */ |
Benjamin Fair | 1c4d3d3 | 2018-10-19 17:22:53 -0700 | [diff] [blame] | 83 | try |
| 84 | { |
| 85 | loadLibraries(expectedHandlerPath); |
| 86 | } |
| 87 | catch (const std::exception& e) |
| 88 | { |
| 89 | log<level::ERR>("ERROR loading blob handlers", |
| 90 | entry("ERROR=%s", e.what())); |
| 91 | } |
Patrick Venture | ef3aead | 2018-09-12 08:53:29 -0700 | [diff] [blame] | 92 | } |
| 93 | } // namespace blobs |