blob: 3653855a0fa2295d518b145f1de69a64c64af1cf [file] [log] [blame]
#include "libpldm/base.h"
#include "libpldm/bios.h"
#include "libpldm/pdr.h"
#include "libpldm/platform.h"
#include "common/utils.hpp"
#include "dbus_impl_requester.hpp"
#include "invoker.hpp"
#include "requester/handler.hpp"
#include "requester/request.hpp"
#include <err.h>
#include <getopt.h>
#include <poll.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <unistd.h>
#include <sdeventplus/event.hpp>
#include <sdeventplus/source/io.hpp>
#include <cstdio>
#include <cstring>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <memory>
#include <optional>
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>
#ifdef LIBPLDMRESPONDER
#include "dbus_impl_pdr.hpp"
#include "host-bmc/dbus_to_event_handler.hpp"
#include "host-bmc/dbus_to_host_effecters.hpp"
#include "host-bmc/host_condition.hpp"
#include "host-bmc/host_pdr_handler.hpp"
#include "libpldmresponder/base.hpp"
#include "libpldmresponder/bios.hpp"
#include "libpldmresponder/fru.hpp"
#include "libpldmresponder/oem_handler.hpp"
#include "libpldmresponder/platform.hpp"
#include "xyz/openbmc_project/PLDM/Event/server.hpp"
#endif
#ifdef OEM_IBM
#include "libpldmresponder/file_io.hpp"
#include "libpldmresponder/oem_ibm_handler.hpp"
#endif
constexpr uint8_t MCTP_MSG_TYPE_PLDM = 1;
using namespace pldm;
using namespace sdeventplus;
using namespace sdeventplus::source;
using namespace pldm::responder;
using namespace pldm::utils;
static std::optional<Response>
processRxMsg(const std::vector<uint8_t>& requestMsg, Invoker& invoker,
requester::Handler<requester::Request>& handler)
{
uint8_t eid = requestMsg[0];
uint8_t type = requestMsg[1];
pldm_header_info hdrFields{};
auto hdr = reinterpret_cast<const pldm_msg_hdr*>(
requestMsg.data() + sizeof(eid) + sizeof(type));
if (PLDM_SUCCESS != unpack_pldm_header(hdr, &hdrFields))
{
std::cerr << "Empty PLDM request header \n";
return std::nullopt;
}
if (PLDM_RESPONSE != hdrFields.msg_type)
{
Response response;
auto request = reinterpret_cast<const pldm_msg*>(hdr);
size_t requestLen = requestMsg.size() - sizeof(struct pldm_msg_hdr) -
sizeof(eid) - sizeof(type);
try
{
response = invoker.handle(hdrFields.pldm_type, hdrFields.command,
request, requestLen);
}
catch (const std::out_of_range& e)
{
uint8_t completion_code = PLDM_ERROR_UNSUPPORTED_PLDM_CMD;
response.resize(sizeof(pldm_msg_hdr));
auto responseHdr = reinterpret_cast<pldm_msg_hdr*>(response.data());
pldm_header_info header{};
header.msg_type = PLDM_RESPONSE;
header.instance = hdrFields.instance;
header.pldm_type = hdrFields.pldm_type;
header.command = hdrFields.command;
if (PLDM_SUCCESS != pack_pldm_header(&header, responseHdr))
{
std::cerr << "Failed adding response header \n";
return std::nullopt;
}
response.insert(response.end(), completion_code);
}
return response;
}
else if (PLDM_RESPONSE == hdrFields.msg_type)
{
auto response = reinterpret_cast<const pldm_msg*>(hdr);
size_t responseLen = requestMsg.size() - sizeof(struct pldm_msg_hdr) -
sizeof(eid) - sizeof(type);
handler.handleResponse(eid, hdrFields.instance, hdrFields.pldm_type,
hdrFields.command, response, responseLen);
}
return std::nullopt;
}
void optionUsage(void)
{
std::cerr << "Usage: pldmd [options]\n";
std::cerr << "Options:\n";
std::cerr
<< " --verbose=<0/1> 0 - Disable verbosity, 1 - Enable verbosity\n";
std::cerr << "Defaulted settings: --verbose=0 \n";
}
int main(int argc, char** argv)
{
bool verbose = false;
static struct option long_options[] = {
{"verbose", required_argument, 0, 'v'}, {0, 0, 0, 0}};
auto argflag = getopt_long(argc, argv, "v:", long_options, nullptr);
switch (argflag)
{
case 'v':
switch (std::stoi(optarg))
{
case 0:
verbose = false;
break;
case 1:
verbose = true;
break;
default:
optionUsage();
break;
}
break;
default:
optionUsage();
break;
}
/* Create local socket. */
int returnCode = 0;
int sockfd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
if (-1 == sockfd)
{
returnCode = -errno;
std::cerr << "Failed to create the socket, RC= " << returnCode << "\n";
exit(EXIT_FAILURE);
}
auto event = Event::get_default();
auto& bus = pldm::utils::DBusHandler::getBus();
dbus_api::Requester dbusImplReq(bus, "/xyz/openbmc_project/pldm");
Invoker invoker{};
requester::Handler<requester::Request> reqHandler(sockfd, event,
dbusImplReq);
#ifdef LIBPLDMRESPONDER
using namespace pldm::state_sensor;
dbus_api::Host dbusImplHost(bus, "/xyz/openbmc_project/pldm");
std::unique_ptr<pldm_pdr, decltype(&pldm_pdr_destroy)> pdrRepo(
pldm_pdr_init(), pldm_pdr_destroy);
std::unique_ptr<pldm_entity_association_tree,
decltype(&pldm_entity_association_tree_destroy)>
entityTree(pldm_entity_association_tree_init(),
pldm_entity_association_tree_destroy);
std::unique_ptr<pldm_entity_association_tree,
decltype(&pldm_entity_association_tree_destroy)>
bmcEntityTree(pldm_entity_association_tree_init(),
pldm_entity_association_tree_destroy);
std::shared_ptr<HostPDRHandler> hostPDRHandler;
std::unique_ptr<pldm::host_effecters::HostEffecterParser>
hostEffecterParser;
std::unique_ptr<DbusToPLDMEvent> dbusToPLDMEventHandler;
auto dbusHandler = std::make_unique<DBusHandler>();
auto hostEID = pldm::utils::readHostEID();
if (hostEID)
{
hostPDRHandler = std::make_shared<HostPDRHandler>(
sockfd, hostEID, event, pdrRepo.get(), EVENTS_JSONS_DIR,
entityTree.get(), bmcEntityTree.get(), dbusImplReq, &reqHandler,
verbose);
// HostFirmware interface needs access to hostPDR to know if host
// is running
dbusImplHost.setHostPdrObj(hostPDRHandler);
hostEffecterParser =
std::make_unique<pldm::host_effecters::HostEffecterParser>(
&dbusImplReq, sockfd, pdrRepo.get(), dbusHandler.get(),
HOST_JSONS_DIR, &reqHandler, verbose);
dbusToPLDMEventHandler = std::make_unique<DbusToPLDMEvent>(
sockfd, hostEID, dbusImplReq, &reqHandler);
}
std::unique_ptr<oem_platform::Handler> oemPlatformHandler{};
#ifdef OEM_IBM
std::unique_ptr<pldm::responder::CodeUpdate> codeUpdate =
std::make_unique<pldm::responder::CodeUpdate>(dbusHandler.get());
codeUpdate->clearDirPath(LID_STAGING_DIR);
oemPlatformHandler = std::make_unique<oem_ibm_platform::Handler>(
dbusHandler.get(), codeUpdate.get(), sockfd, hostEID, dbusImplReq,
event, &reqHandler);
codeUpdate->setOemPlatformHandler(oemPlatformHandler.get());
invoker.registerHandler(PLDM_OEM, std::make_unique<oem_ibm::Handler>(
oemPlatformHandler.get(), sockfd,
hostEID, &dbusImplReq, &reqHandler));
#endif
invoker.registerHandler(PLDM_BASE, std::make_unique<base::Handler>());
invoker.registerHandler(
PLDM_BIOS, std::make_unique<bios::Handler>(sockfd, hostEID,
&dbusImplReq, &reqHandler));
auto fruHandler = std::make_unique<fru::Handler>(
FRU_JSONS_DIR, FRU_MASTER_JSON, pdrRepo.get(), entityTree.get(),
bmcEntityTree.get());
// FRU table is built lazily when a FRU command or Get PDR command is
// handled. To enable building FRU table, the FRU handler is passed to the
// Platform handler.
auto platformHandler = std::make_unique<platform::Handler>(
dbusHandler.get(), PDR_JSONS_DIR, pdrRepo.get(), hostPDRHandler.get(),
dbusToPLDMEventHandler.get(), fruHandler.get(),
oemPlatformHandler.get(), event, true);
#ifdef OEM_IBM
pldm::responder::oem_ibm_platform::Handler* oemIbmPlatformHandler =
dynamic_cast<pldm::responder::oem_ibm_platform::Handler*>(
oemPlatformHandler.get());
oemIbmPlatformHandler->setPlatformHandler(platformHandler.get());
#endif
invoker.registerHandler(PLDM_PLATFORM, std::move(platformHandler));
invoker.registerHandler(PLDM_FRU, std::move(fruHandler));
dbus_api::Pdr dbusImplPdr(bus, "/xyz/openbmc_project/pldm", pdrRepo.get());
sdbusplus::xyz::openbmc_project::PLDM::server::Event dbusImplEvent(
bus, "/xyz/openbmc_project/pldm");
if (hostPDRHandler)
{
hostPDRHandler->setHostState();
if (hostPDRHandler->isHostUp())
{
hostPDRHandler->getHostPDR();
}
else
{
if (verbose)
{
std::cout << "Host is not running\n";
}
}
}
#endif
pldm::utils::CustomFD socketFd(sockfd);
struct sockaddr_un addr
{};
addr.sun_family = AF_UNIX;
const char path[] = "\0mctp-mux";
memcpy(addr.sun_path, path, sizeof(path) - 1);
int result = connect(socketFd(), reinterpret_cast<struct sockaddr*>(&addr),
sizeof(path) + sizeof(addr.sun_family) - 1);
if (-1 == result)
{
returnCode = -errno;
std::cerr << "Failed to connect to the socket, RC= " << returnCode
<< "\n";
exit(EXIT_FAILURE);
}
result = write(socketFd(), &MCTP_MSG_TYPE_PLDM, sizeof(MCTP_MSG_TYPE_PLDM));
if (-1 == result)
{
returnCode = -errno;
std::cerr << "Failed to send message type as pldm to mctp, RC= "
<< returnCode << "\n";
exit(EXIT_FAILURE);
}
auto callback = [verbose, &invoker, &reqHandler](IO& io, int fd,
uint32_t revents) {
if (!(revents & EPOLLIN))
{
return;
}
// Outgoing message.
struct iovec iov[2]{};
// This structure contains the parameter information for the response
// message.
struct msghdr msg
{};
int returnCode = 0;
ssize_t peekedLength = recv(fd, nullptr, 0, MSG_PEEK | MSG_TRUNC);
if (0 == peekedLength)
{
// MCTP daemon has closed the socket this daemon is connected to.
// This may or may not be an error scenario, in either case the
// recovery mechanism for this daemon is to restart, and hence exit
// the event loop, that will cause this daemon to exit with a
// failure code.
io.get_event().exit(0);
}
else if (peekedLength <= -1)
{
returnCode = -errno;
std::cerr << "recv system call failed, RC= " << returnCode << "\n";
}
else
{
std::vector<uint8_t> requestMsg(peekedLength);
auto recvDataLength = recv(
fd, static_cast<void*>(requestMsg.data()), peekedLength, 0);
if (recvDataLength == peekedLength)
{
if (verbose)
{
std::cout << "Received Msg" << std::endl;
printBuffer(requestMsg, verbose);
}
if (MCTP_MSG_TYPE_PLDM != requestMsg[1])
{
// Skip this message and continue.
std::cerr << "Encountered Non-PLDM type message"
<< "\n";
}
else
{
// process message and send response
auto response =
processRxMsg(requestMsg, invoker, reqHandler);
if (response.has_value())
{
if (verbose)
{
std::cout << "Sending Msg" << std::endl;
printBuffer(*response, verbose);
}
iov[0].iov_base = &requestMsg[0];
iov[0].iov_len =
sizeof(requestMsg[0]) + sizeof(requestMsg[1]);
iov[1].iov_base = (*response).data();
iov[1].iov_len = (*response).size();
msg.msg_iov = iov;
msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]);
int result = sendmsg(fd, &msg, 0);
if (-1 == result)
{
returnCode = -errno;
std::cerr << "sendto system call failed, RC= "
<< returnCode << "\n";
}
}
}
}
else
{
std::cerr
<< "Failure to read peeked length packet. peekedLength= "
<< peekedLength << " recvDataLength=" << recvDataLength
<< "\n";
}
}
};
bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL);
bus.request_name("xyz.openbmc_project.PLDM");
IO io(event, socketFd(), EPOLLIN, std::move(callback));
event.loop();
result = shutdown(sockfd, SHUT_RDWR);
if (-1 == result)
{
returnCode = -errno;
std::cerr << "Failed to shutdown the socket, RC=" << returnCode << "\n";
exit(EXIT_FAILURE);
}
exit(EXIT_FAILURE);
}