Unable to execute `lan set 1 access on/off` IPMI command

[ckstyle001]

I was woking with the openbmc-test-automation framework and have noticed that one of the tests fails. The test was executing lan set 1 access off IPMI command. I've checked it on the BMC side and have discovered that the behaviour is persistent:

# ipmitool lan set 1 access off
IPMI command failed: Unspecified error
Unable to Set Channel Access(non-volatile) for channel 1

The channel 1 is working and it is:

  "1" : {
    "name" : "eth0",
    "is_valid" : true,
    "active_sessions" : 0,
    "channel_info" : {
      "medium_type" : "lan-802.3",
      "protocol_type" : "ipmb-1.0",
      "session_supported" : "multi-session",
      "is_ipmi" : true
    }
  },

The error comes from the setChannelAccessPersistData function
phosphor-host-ipmid/user_channel/channel_mgmt.cpp
From this part of code:

            if (0 != setDbusProperty(networkIntfServiceName, networkIntfObj,
                                     networkChConfigIntfName,
                                     privilegePropertyString, privStr))
            {
                log<level::DEBUG>(
                    "Network interface does not exist",
                    entry("INTERFACE=%s", channelData[chNum].chName.c_str()));
                return ccUnspecifiedError;
            }

Here are the constants:

// TODO: Get the service name dynamically..
static constexpr const char* networkIntfServiceName =
    "xyz.openbmc_project.Network";
static constexpr const char* networkIntfObjectBasePath =
    "/xyz/openbmc_project/network";
static constexpr const char* networkChConfigIntfName =
    "xyz.openbmc_project.Channel.ChannelAccess";
static constexpr const char* privilegePropertyString = "MaxPrivilege";
static constexpr const char* dBusPropertiesInterface =
    "org.freedesktop.DBus.Properties";
static constexpr const char* propertiesChangedSignal = "PropertiesChanged";

So the setDbusProperty call looks for xyz.openbmc_project.Channel.ChannelAccess interface, but it appears that there is no such interface on my machine:

# busctl tree xyz.openbmc_project.Network
└─/xyz
  └─/xyz/openbmc_project
    └─/xyz/openbmc_project/network
      ├─/xyz/openbmc_project/network/config
      │ └─/xyz/openbmc_project/network/config/dhcp
      └─/xyz/openbmc_project/network/eth0
        ├─/xyz/openbmc_project/network/eth0/ipv4
        │ └─/xyz/openbmc_project/network/eth0/ipv4/dae4712
        └─/xyz/openbmc_project/network/eth0/ipv6
          └─/xyz/openbmc_project/network/eth0/ipv6/749f2442


root@ak9032v2:~# busctl introspect xyz.openbmc_project.Network /xyz/openbmc_project/network/eth0
NAME                                              TYPE      SIGNATURE RESULT/VALUE                             FLAGS
org.freedesktop.DBus.Introspectable               interface -         -                                        -
.Introspect                                       method    -         s                                        -
org.freedesktop.DBus.Peer                         interface -         -                                        -
.GetMachineId                                     method    -         s                                        -
.Ping                                             method    -         -                                        -
org.freedesktop.DBus.Properties                   interface -         -                                        -
.Get                                              method    ss        v                                        -
.GetAll                                           method    s         a{sv}                                    -
.Set                                              method    ssv       -                                        -
.PropertiesChanged                                signal    sa{sv}as  -                                        -
xyz.openbmc_project.Collection.DeleteAll          interface -         -                                        -
.DeleteAll                                        method    -         -                                        -
xyz.openbmc_project.Network.EthernetInterface     interface -         -                                        -
.AutoNeg                                          property  b         false                                    emits-change
.DHCPEnabled                                      property  s         "xyz.openbmc_project.Network.EthernetIn…" emits-change writable
.DefaultGateway                                   property  s         "100.100.100.200"                        emits-change writable
.DefaultGateway6                                  property  s         ""                                       emits-change writable
.DomainName                                       property  as        0                                        emits-change writable
.IPv6AcceptRA                                     property  b         true                                     emits-change writable
.InterfaceName                                    property  s         "eth0"                                   const
.LinkLocalAutoConf                                property  s         "xyz.openbmc_project.Network.EthernetIn…" emits-change writable
.LinkUp                                           property  b         true                                     emits-change
.MTU                                              property  u         1500                                     emits-change writable
.NICEnabled                                       property  b         true                                     emits-change writable
.NTPServers                                       property  as        3 "10.10.10.10" "20.20.20.20" "30.30.30…" emits-change writable
.Nameservers                                      property  as        1 "168.95.1.1"                           emits-change writable
.Speed                                            property  u         0                                        emits-change
.StaticNTPServers                                 property  as        0                                        emits-change writable
.StaticNameServers                                property  as        0                                        emits-change writable
xyz.openbmc_project.Network.IP.Create             interface -         -                                        -
.IP                                               method    ssys      o                                        -
xyz.openbmc_project.Network.MACAddress            interface -         -                                        -
.MACAddress                                       property  s         "46:2b:35:e8:46:39"                      emits-change writable
xyz.openbmc_project.Network.Neighbor.CreateStatic interface -         -                                        -
.Neighbor                                         method    ss        o                                        -

Question:

1. Is this the ipmi bug?
2. Does ipmi support ipmitool lan set 1 access on/off command?
3. I try to implement the xyz.openbmc_project.Channel.ChannelAccess interface at xyz.openbmc_project.Network /xyz/openbmc_project/network/eth0, but when start phosphor-ipmi-host.service the ipmid will crashed.

[ritzenyang]

this is duplicate with #166