blob: cc4b763d6b65abd22330d3e21e70ebf2f89ca937 [file] [log] [blame]
#include <arpa/inet.h>
#include <dirent.h>
#include <fcntl.h>
#include <linux/i2c-dev.h>
#include <linux/i2c.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <unistd.h>
#include <algorithm>
#include <chrono>
#include <ipmid/utils.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <sdbusplus/message/types.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
namespace ipmi
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
namespace network
{
/** @brief checks if the given ip is Link Local Ip or not.
* @param[in] ipaddress - IPAddress.
*/
bool isLinkLocalIP(const std::string& ipaddress);
} // namespace network
// TODO There may be cases where an interface is implemented by multiple
// objects,to handle such cases we are interested on that object
// which are on interested busname.
// Currently mapper doesn't give the readable busname(gives busid) so we can't
// use busname to find the object,will do later once the support is there.
DbusObjectInfo getDbusObject(sdbusplus::bus::bus& bus,
const std::string& interface,
const std::string& serviceRoot,
const std::string& match)
{
std::vector<DbusInterface> interfaces;
interfaces.emplace_back(interface);
auto depth = 0;
auto mapperCall = bus.new_method_call(MAPPER_BUS_NAME, MAPPER_OBJ,
MAPPER_INTF, "GetSubTree");
mapperCall.append(serviceRoot, depth, interfaces);
auto mapperReply = bus.call(mapperCall);
if (mapperReply.is_method_error())
{
log<level::ERR>("Error in mapper call");
elog<InternalFailure>();
}
ObjectTree objectTree;
mapperReply.read(objectTree);
if (objectTree.empty())
{
log<level::ERR>("No Object has implemented the interface",
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
DbusObjectInfo objectInfo;
// if match is empty then return the first object
if (match == "")
{
objectInfo = std::make_pair(
objectTree.begin()->first,
std::move(objectTree.begin()->second.begin()->first));
return objectInfo;
}
// else search the match string in the object path
auto found = std::find_if(
objectTree.begin(), objectTree.end(), [&match](const auto& object) {
return (object.first.find(match) != std::string::npos);
});
if (found == objectTree.end())
{
log<level::ERR>("Failed to find object which matches",
entry("MATCH=%s", match.c_str()));
elog<InternalFailure>();
// elog<> throws an exception.
}
return make_pair(found->first, std::move(found->second.begin()->first));
}
DbusObjectInfo getIPObject(sdbusplus::bus::bus& bus,
const std::string& interface,
const std::string& serviceRoot,
const std::string& match)
{
auto objectTree = getAllDbusObjects(bus, serviceRoot, interface, match);
if (objectTree.empty())
{
log<level::ERR>("No Object has implemented the IP interface",
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
DbusObjectInfo objectInfo;
for (auto& object : objectTree)
{
auto variant = ipmi::getDbusProperty(
bus, object.second.begin()->first, object.first,
ipmi::network::IP_INTERFACE, "Address");
objectInfo = std::make_pair(object.first, object.second.begin()->first);
// if LinkLocalIP found look for Non-LinkLocalIP
if (ipmi::network::isLinkLocalIP(std::get<std::string>(variant)))
{
continue;
}
else
{
break;
}
}
return objectInfo;
}
Value getDbusProperty(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& interface,
const std::string& property,
std::chrono::microseconds timeout)
{
Value value;
auto method = bus.new_method_call(service.c_str(), objPath.c_str(),
PROP_INTF, METHOD_GET);
method.append(interface, property);
auto reply = bus.call(method, timeout.count());
if (reply.is_method_error())
{
log<level::ERR>("Failed to get property",
entry("PROPERTY=%s", property.c_str()),
entry("PATH=%s", objPath.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
reply.read(value);
return value;
}
PropertyMap getAllDbusProperties(sdbusplus::bus::bus& bus,
const std::string& service,
const std::string& objPath,
const std::string& interface,
std::chrono::microseconds timeout)
{
PropertyMap properties;
auto method = bus.new_method_call(service.c_str(), objPath.c_str(),
PROP_INTF, METHOD_GET_ALL);
method.append(interface);
auto reply = bus.call(method, timeout.count());
if (reply.is_method_error())
{
log<level::ERR>("Failed to get all properties",
entry("PATH=%s", objPath.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
reply.read(properties);
return properties;
}
ObjectValueTree getManagedObjects(sdbusplus::bus::bus& bus,
const std::string& service,
const std::string& objPath)
{
ipmi::ObjectValueTree interfaces;
auto method = bus.new_method_call(service.c_str(), objPath.c_str(),
"org.freedesktop.DBus.ObjectManager",
"GetManagedObjects");
auto reply = bus.call(method);
if (reply.is_method_error())
{
log<level::ERR>("Failed to get managed objects",
entry("PATH=%s", objPath.c_str()));
elog<InternalFailure>();
}
reply.read(interfaces);
return interfaces;
}
void setDbusProperty(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& interface,
const std::string& property, const Value& value,
std::chrono::microseconds timeout)
{
auto method = bus.new_method_call(service.c_str(), objPath.c_str(),
PROP_INTF, METHOD_SET);
method.append(interface, property, value);
if (!bus.call(method, timeout.count()))
{
log<level::ERR>("Failed to set property",
entry("PROPERTY=%s", property.c_str()),
entry("PATH=%s", objPath.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
}
ServiceCache::ServiceCache(const std::string& intf, const std::string& path) :
intf(intf), path(path), cachedService(std::nullopt),
cachedBusName(std::nullopt)
{
}
ServiceCache::ServiceCache(std::string&& intf, std::string&& path) :
intf(std::move(intf)), path(std::move(path)), cachedService(std::nullopt),
cachedBusName(std::nullopt)
{
}
const std::string& ServiceCache::getService(sdbusplus::bus::bus& bus)
{
if (!isValid(bus))
{
cachedBusName = bus.get_unique_name();
cachedService = ::ipmi::getService(bus, intf, path);
}
return cachedService.value();
}
void ServiceCache::invalidate()
{
cachedBusName = std::nullopt;
cachedService = std::nullopt;
}
sdbusplus::message::message
ServiceCache::newMethodCall(sdbusplus::bus::bus& bus, const char* intf,
const char* method)
{
return bus.new_method_call(getService(bus).c_str(), path.c_str(), intf,
method);
}
bool ServiceCache::isValid(sdbusplus::bus::bus& bus) const
{
return cachedService && cachedBusName == bus.get_unique_name();
}
std::string getService(sdbusplus::bus::bus& bus, const std::string& intf,
const std::string& path)
{
auto mapperCall =
bus.new_method_call("xyz.openbmc_project.ObjectMapper",
"/xyz/openbmc_project/object_mapper",
"xyz.openbmc_project.ObjectMapper", "GetObject");
mapperCall.append(path);
mapperCall.append(std::vector<std::string>({intf}));
auto mapperResponseMsg = bus.call(mapperCall);
if (mapperResponseMsg.is_method_error())
{
throw std::runtime_error("ERROR in mapper call");
}
std::map<std::string, std::vector<std::string>> mapperResponse;
mapperResponseMsg.read(mapperResponse);
if (mapperResponse.begin() == mapperResponse.end())
{
throw std::runtime_error("ERROR in reading the mapper response");
}
return mapperResponse.begin()->first;
}
ipmi::ObjectTree getAllDbusObjects(sdbusplus::bus::bus& bus,
const std::string& serviceRoot,
const std::string& interface,
const std::string& match)
{
std::vector<std::string> interfaces;
interfaces.emplace_back(interface);
auto depth = 0;
auto mapperCall = bus.new_method_call(MAPPER_BUS_NAME, MAPPER_OBJ,
MAPPER_INTF, "GetSubTree");
mapperCall.append(serviceRoot, depth, interfaces);
auto mapperReply = bus.call(mapperCall);
if (mapperReply.is_method_error())
{
log<level::ERR>("Error in mapper call",
entry("SERVICEROOT=%s", serviceRoot.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
ObjectTree objectTree;
mapperReply.read(objectTree);
for (auto it = objectTree.begin(); it != objectTree.end();)
{
if (it->first.find(match) == std::string::npos)
{
it = objectTree.erase(it);
}
else
{
++it;
}
}
return objectTree;
}
void deleteAllDbusObjects(sdbusplus::bus::bus& bus,
const std::string& serviceRoot,
const std::string& interface,
const std::string& match)
{
try
{
auto objectTree = getAllDbusObjects(bus, serviceRoot, interface, match);
for (auto& object : objectTree)
{
method_no_args::callDbusMethod(bus, object.second.begin()->first,
object.first, DELETE_INTERFACE,
"Delete");
}
}
catch (sdbusplus::exception::exception& e)
{
log<level::INFO>("sdbusplus exception - Unable to delete the objects",
entry("ERROR=%s", e.what()),
entry("INTERFACE=%s", interface.c_str()),
entry("SERVICE=%s", serviceRoot.c_str()));
}
}
ObjectTree getAllAncestors(sdbusplus::bus::bus& bus, const std::string& path,
InterfaceList&& interfaces)
{
auto convertToString = [](InterfaceList& interfaces) -> std::string {
std::string intfStr;
for (const auto& intf : interfaces)
{
intfStr += "," + intf;
}
return intfStr;
};
auto mapperCall = bus.new_method_call(MAPPER_BUS_NAME, MAPPER_OBJ,
MAPPER_INTF, "GetAncestors");
mapperCall.append(path, interfaces);
auto mapperReply = bus.call(mapperCall);
if (mapperReply.is_method_error())
{
log<level::ERR>(
"Error in mapper call", entry("PATH=%s", path.c_str()),
entry("INTERFACES=%s", convertToString(interfaces).c_str()));
elog<InternalFailure>();
}
ObjectTree objectTree;
mapperReply.read(objectTree);
if (objectTree.empty())
{
log<level::ERR>(
"No Object has implemented the interface",
entry("PATH=%s", path.c_str()),
entry("INTERFACES=%s", convertToString(interfaces).c_str()));
elog<InternalFailure>();
}
return objectTree;
}
namespace method_no_args
{
void callDbusMethod(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& interface,
const std::string& method)
{
auto busMethod = bus.new_method_call(service.c_str(), objPath.c_str(),
interface.c_str(), method.c_str());
auto reply = bus.call(busMethod);
if (reply.is_method_error())
{
log<level::ERR>("Failed to execute method",
entry("METHOD=%s", method.c_str()),
entry("PATH=%s", objPath.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
}
} // namespace method_no_args
namespace network
{
bool isLinkLocalIP(const std::string& address)
{
return address.find(IPV4_PREFIX) == 0 || address.find(IPV6_PREFIX) == 0;
}
void createIP(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& protocolType,
const std::string& ipaddress, uint8_t prefix)
{
std::string gateway = "";
auto busMethod = bus.new_method_call(service.c_str(), objPath.c_str(),
IP_CREATE_INTERFACE, "IP");
busMethod.append(protocolType, ipaddress, prefix, gateway);
auto reply = bus.call(busMethod);
if (reply.is_method_error())
{
log<level::ERR>("Failed to execute method", entry("METHOD=%s", "IP"),
entry("PATH=%s", objPath.c_str()));
elog<InternalFailure>();
}
}
void createVLAN(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& interfaceName,
uint32_t vlanID)
{
auto busMethod = bus.new_method_call(service.c_str(), objPath.c_str(),
VLAN_CREATE_INTERFACE, "VLAN");
busMethod.append(interfaceName, vlanID);
auto reply = bus.call(busMethod);
if (reply.is_method_error())
{
log<level::ERR>("Failed to execute method", entry("METHOD=%s", "VLAN"),
entry("PATH=%s", objPath.c_str()));
elog<InternalFailure>();
}
}
uint8_t toPrefix(int addressFamily, const std::string& subnetMask)
{
if (addressFamily == AF_INET6)
{
return 0;
}
uint32_t buff{};
auto rc = inet_pton(addressFamily, subnetMask.c_str(), &buff);
if (rc <= 0)
{
log<level::ERR>("inet_pton failed:",
entry("SUBNETMASK=%s", subnetMask.c_str()));
return 0;
}
buff = be32toh(buff);
// total no of bits - total no of leading zero == total no of ones
if (((sizeof(buff) * 8) - (__builtin_ctz(buff))) ==
__builtin_popcount(buff))
{
return __builtin_popcount(buff);
}
else
{
log<level::ERR>("Invalid Mask",
entry("SUBNETMASK=%s", subnetMask.c_str()));
return 0;
}
}
uint32_t getVLAN(const std::string& path)
{
// Path would be look like
// /xyz/openbmc_project/network/eth0_443/ipv4
uint32_t vlanID = 0;
try
{
auto intfObjectPath = path.substr(0, path.find(IP_TYPE) - 1);
auto intfName = intfObjectPath.substr(intfObjectPath.rfind("/") + 1);
auto index = intfName.find("_");
if (index != std::string::npos)
{
auto str = intfName.substr(index + 1);
vlanID = std::stoul(str);
}
}
catch (std::exception& e)
{
log<level::ERR>("Exception occurred during getVLAN",
entry("PATH=%s", path.c_str()),
entry("EXCEPTION=%s", e.what()));
}
return vlanID;
}
} // namespace network
ipmi::Cc i2cWriteRead(std::string i2cBus, const uint8_t slaveAddr,
std::vector<uint8_t> writeData,
std::vector<uint8_t>& readBuf)
{
// Open the i2c device, for low-level combined data write/read
int i2cDev = ::open(i2cBus.c_str(), O_RDWR | O_CLOEXEC);
if (i2cDev < 0)
{
log<level::ERR>("Failed to open i2c bus",
phosphor::logging::entry("BUS=%s", i2cBus.c_str()));
return ipmi::ccInvalidFieldRequest;
}
const size_t writeCount = writeData.size();
const size_t readCount = readBuf.size();
int msgCount = 0;
i2c_msg i2cmsg[2] = {0};
if (writeCount)
{
// Data will be writtern to the slave address
i2cmsg[msgCount].addr = slaveAddr;
i2cmsg[msgCount].flags = 0x00;
i2cmsg[msgCount].len = writeCount;
i2cmsg[msgCount].buf = writeData.data();
msgCount++;
}
if (readCount)
{
// Data will be read into the buffer from the slave address
i2cmsg[msgCount].addr = slaveAddr;
i2cmsg[msgCount].flags = I2C_M_RD;
i2cmsg[msgCount].len = readCount;
i2cmsg[msgCount].buf = readBuf.data();
msgCount++;
}
i2c_rdwr_ioctl_data msgReadWrite = {0};
msgReadWrite.msgs = i2cmsg;
msgReadWrite.nmsgs = msgCount;
// Perform the combined write/read
int ret = ::ioctl(i2cDev, I2C_RDWR, &msgReadWrite);
::close(i2cDev);
if (ret < 0)
{
log<level::ERR>("I2C WR Failed!",
phosphor::logging::entry("RET=%d", ret));
return ipmi::ccUnspecifiedError;
}
if (readCount)
{
readBuf.resize(msgReadWrite.msgs[msgCount - 1].len);
}
return ipmi::ccSuccess;
}
} // namespace ipmi