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#include "ncsi_util.hpp"
#include <linux/ncsi.h>
#include <netlink/genl/ctrl.h>
#include <netlink/genl/genl.h>
#include <netlink/netlink.h>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
namespace phosphor
{
namespace network
{
namespace ncsi
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
using CallBack = int (*)(struct nl_msg* msg, void* arg);
namespace internal
{
using nlMsgPtr = std::unique_ptr<nl_msg, decltype(&::nlmsg_free)>;
using nlSocketPtr = std::unique_ptr<nl_sock, decltype(&::nl_socket_free)>;
CallBack infoCallBack = [](struct nl_msg* msg, void* arg) {
using namespace phosphor::network::ncsi;
auto nlh = nlmsg_hdr(msg);
struct nlattr* tb[NCSI_ATTR_MAX + 1] = {nullptr};
struct nla_policy ncsiPolicy[NCSI_ATTR_MAX + 1] = {
{type : NLA_UNSPEC}, {type : NLA_U32}, {type : NLA_NESTED},
{type : NLA_U32}, {type : NLA_U32},
};
struct nlattr* packagetb[NCSI_PKG_ATTR_MAX + 1] = {nullptr};
struct nla_policy packagePolicy[NCSI_PKG_ATTR_MAX + 1] = {
{type : NLA_UNSPEC}, {type : NLA_NESTED}, {type : NLA_U32},
{type : NLA_FLAG}, {type : NLA_NESTED},
};
struct nlattr* channeltb[NCSI_CHANNEL_ATTR_MAX + 1] = {nullptr};
struct nla_policy channelPolicy[NCSI_CHANNEL_ATTR_MAX + 1] = {
{type : NLA_UNSPEC}, {type : NLA_NESTED}, {type : NLA_U32},
{type : NLA_FLAG}, {type : NLA_NESTED}, {type : NLA_UNSPEC},
};
auto ret = genlmsg_parse(nlh, 0, tb, NCSI_ATTR_MAX, ncsiPolicy);
if (!tb[NCSI_ATTR_PACKAGE_LIST])
{
log<level::ERR>("No Packages");
return -1;
}
auto attrTgt = static_cast<nlattr*>(nla_data(tb[NCSI_ATTR_PACKAGE_LIST]));
if (!attrTgt)
{
log<level::ERR>("Package list attribute is null");
return -1;
}
auto rem = nla_len(tb[NCSI_ATTR_PACKAGE_LIST]);
nla_for_each_nested(attrTgt, tb[NCSI_ATTR_PACKAGE_LIST], rem)
{
ret = nla_parse_nested(packagetb, NCSI_PKG_ATTR_MAX, attrTgt,
packagePolicy);
if (ret < 0)
{
log<level::ERR>("Failed to parse package nested");
return -1;
}
if (packagetb[NCSI_PKG_ATTR_ID])
{
auto attrID = nla_get_u32(packagetb[NCSI_PKG_ATTR_ID]);
log<level::DEBUG>("Package has id", entry("ID=%x", attrID));
}
else
{
log<level::DEBUG>("Package with no id\n");
}
if (packagetb[NCSI_PKG_ATTR_FORCED])
{
log<level::DEBUG>("This package is forced\n");
}
auto channelListTarget = static_cast<nlattr*>(
nla_data(packagetb[NCSI_PKG_ATTR_CHANNEL_LIST]));
auto channelrem = nla_len(packagetb[NCSI_PKG_ATTR_CHANNEL_LIST]);
nla_for_each_nested(channelListTarget,
packagetb[NCSI_PKG_ATTR_CHANNEL_LIST], channelrem)
{
ret = nla_parse_nested(channeltb, NCSI_CHANNEL_ATTR_MAX,
channelListTarget, channelPolicy);
if (ret < 0)
{
log<level::ERR>("Failed to parse channel nested");
return -1;
}
if (channeltb[NCSI_CHANNEL_ATTR_ID])
{
auto channel = nla_get_u32(channeltb[NCSI_CHANNEL_ATTR_ID]);
if (channeltb[NCSI_CHANNEL_ATTR_ACTIVE])
{
log<level::DEBUG>("Channel Active",
entry("CHANNEL=%x", channel));
}
else
{
log<level::DEBUG>("Channel Not Active",
entry("CHANNEL=%x", channel));
}
if (channeltb[NCSI_CHANNEL_ATTR_FORCED])
{
log<level::DEBUG>("Channel is forced");
}
}
else
{
log<level::DEBUG>("Channel with no ID");
}
if (channeltb[NCSI_CHANNEL_ATTR_VERSION_MAJOR])
{
auto major =
nla_get_u32(channeltb[NCSI_CHANNEL_ATTR_VERSION_MAJOR]);
log<level::DEBUG>("Channel Major Version",
entry("VERSION=%x", major));
}
if (channeltb[NCSI_CHANNEL_ATTR_VERSION_MINOR])
{
auto minor =
nla_get_u32(channeltb[NCSI_CHANNEL_ATTR_VERSION_MINOR]);
log<level::DEBUG>("Channel Minor Version",
entry("VERSION=%x", minor));
}
if (channeltb[NCSI_CHANNEL_ATTR_VERSION_STR])
{
auto str =
nla_get_string(channeltb[NCSI_CHANNEL_ATTR_VERSION_STR]);
log<level::DEBUG>("Channel Version Str",
entry("VERSION=%s", str));
}
if (channeltb[NCSI_CHANNEL_ATTR_LINK_STATE])
{
auto link =
nla_get_u32(channeltb[NCSI_CHANNEL_ATTR_LINK_STATE]);
log<level::DEBUG>("Channel Link State",
entry("STATE=%x", link));
}
if (channeltb[NCSI_CHANNEL_ATTR_VLAN_LIST])
{
log<level::DEBUG>("Active Vlan ids");
auto vids = channeltb[NCSI_CHANNEL_ATTR_VLAN_LIST];
auto vid = static_cast<nlattr*>(nla_data(vids));
auto len = nla_len(vids);
while (nla_ok(vid, len))
{
auto id = nla_get_u16(vid);
log<level::DEBUG>("VID", entry("VID=%d", id));
vid = nla_next(vid, &len);
}
}
}
}
return (int)NL_SKIP;
};
int applyCmd(int ifindex, int cmd, int package = DEFAULT_VALUE,
int channel = DEFAULT_VALUE, int flags = NONE,
CallBack function = nullptr)
{
nlSocketPtr socket(nl_socket_alloc(), &::nl_socket_free);
auto ret = genl_connect(socket.get());
if (ret < 0)
{
log<level::ERR>("Failed to open the socket", entry("RC=%d", ret));
return ret;
}
auto driverID = genl_ctrl_resolve(socket.get(), "NCSI");
if (driverID < 0)
{
log<level::ERR>("Failed to resolve", entry("RC=%d", ret));
return driverID;
}
nlMsgPtr msg(nlmsg_alloc(), &::nlmsg_free);
auto msgHdr = genlmsg_put(msg.get(), 0, 0, driverID, 0, flags, cmd, 0);
if (!msgHdr)
{
log<level::ERR>("Unable to add the netlink headers",
entry("COMMAND=%d", cmd));
return -1;
}
if (package != DEFAULT_VALUE)
{
ret = nla_put_u32(msg.get(), ncsi_nl_attrs::NCSI_ATTR_PACKAGE_ID,
package);
if (ret < 0)
{
log<level::ERR>("Failed to set the attribute", entry("RC=%d", ret),
entry("PACKAGE=%x", package));
return ret;
}
}
if (channel != DEFAULT_VALUE)
{
ret = nla_put_u32(msg.get(), ncsi_nl_attrs::NCSI_ATTR_CHANNEL_ID,
channel);
if (ret < 0)
{
log<level::ERR>("Failed to set the attribute", entry("RC=%d", ret),
entry("CHANNEL=%x", channel));
return ret;
}
}
ret = nla_put_u32(msg.get(), ncsi_nl_attrs::NCSI_ATTR_IFINDEX, ifindex);
if (ret < 0)
{
log<level::ERR>("Failed to set the attribute", entry("RC=%d", ret),
entry("INTERFACE=%x", ifindex));
return ret;
}
if (function)
{
// Add a callback function to the socket
nl_socket_modify_cb(socket.get(), NL_CB_VALID, NL_CB_CUSTOM, function,
nullptr);
}
ret = nl_send_auto(socket.get(), msg.get());
if (ret < 0)
{
log<level::ERR>("Failed to send the message", entry("RC=%d", ret));
return ret;
}
ret = nl_recvmsgs_default(socket.get());
if (ret < 0)
{
log<level::ERR>("Failed to receive the message", entry("RC=%d", ret));
}
return ret;
}
} // namespace internal
int setChannel(int ifindex, int package, int channel)
{
log<level::DEBUG>("Set Channel", entry("CHANNEL=%x", channel),
entry("PACKAGE=%x", package),
entry("IFINDEX=%x", ifindex));
return internal::applyCmd(ifindex, ncsi_nl_commands::NCSI_CMD_SET_INTERFACE,
package, channel);
}
int clearInterface(int ifindex)
{
log<level::DEBUG>("ClearInterface", entry("IFINDEX=%x", ifindex));
return internal::applyCmd(ifindex,
ncsi_nl_commands::NCSI_CMD_CLEAR_INTERFACE);
}
int getInfo(int ifindex, int package)
{
log<level::DEBUG>("Get Info", entry("PACKAGE=%x", package),
entry("IFINDEX=%x", ifindex));
if (package == DEFAULT_VALUE)
{
return internal::applyCmd(ifindex, ncsi_nl_commands::NCSI_CMD_PKG_INFO,
package, DEFAULT_VALUE, NLM_F_DUMP,
internal::infoCallBack);
}
else
{
return internal::applyCmd(ifindex, ncsi_nl_commands::NCSI_CMD_PKG_INFO,
package, DEFAULT_VALUE, NONE,
internal::infoCallBack);
}
}
} // namespace ncsi
} // namespace network
} // namespace phosphor
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