1 #include "config.h" 2 3 #include "systemintfcmds.hpp" 4 5 #include "host-cmd-manager.hpp" 6 #include "host-interface.hpp" 7 8 #include <cstring> 9 #include <ipmid-host/cmd.hpp> 10 #include <ipmid/api.hpp> 11 12 void register_netfn_app_functions() __attribute__((constructor)); 13 14 using namespace sdbusplus::xyz::openbmc_project::Control::server; 15 16 // For accessing Host command manager 17 using cmdManagerPtr = std::unique_ptr<phosphor::host::command::Manager>; 18 extern cmdManagerPtr& ipmid_get_host_cmd_manager(); 19 20 // global enables 21 // bit0 - Message Receive Queue enable 22 // bit1 - Enable Event Message Buffer Full Interrupt 23 // bit2 - Enable Event Message Buffer 24 // bit3 - Enable System Event Logging 25 // bit4 - reserved 26 // bit5-7 - OEM 0~2 enables 27 static constexpr uint8_t selEnable = 0x08; 28 static constexpr uint8_t recvMsgQueueEnable = 0x01; 29 static constexpr uint8_t globalEnablesDefault = selEnable | recvMsgQueueEnable; 30 31 //------------------------------------------------------------------- 32 // Called by Host post response from Get_Message_Flags 33 //------------------------------------------------------------------- 34 ipmi_ret_t ipmi_app_read_event(ipmi_netfn_t netfn, ipmi_cmd_t cmd, 35 ipmi_request_t request, ipmi_response_t response, 36 ipmi_data_len_t data_len, ipmi_context_t context) 37 { 38 ipmi_ret_t rc = IPMI_CC_OK; 39 40 struct oem_sel_timestamped oem_sel = {0}; 41 *data_len = sizeof(struct oem_sel_timestamped); 42 43 // either id[0] -or- id[1] can be filled in. We will use id[0] 44 oem_sel.id[0] = SEL_OEM_ID_0; 45 oem_sel.id[1] = SEL_OEM_ID_0; 46 oem_sel.type = SEL_RECORD_TYPE_OEM; 47 48 // Following 3 bytes are from IANA Manufactre_Id field. See below 49 oem_sel.manuf_id[0] = 0x41; 50 oem_sel.manuf_id[1] = 0xA7; 51 oem_sel.manuf_id[2] = 0x00; 52 53 // per IPMI spec NetFuntion for OEM 54 oem_sel.netfun = 0x3A; 55 56 // Read from the Command Manager queue. What gets returned is a 57 // pair of <command, data> that can be directly used here 58 auto hostCmd = ipmid_get_host_cmd_manager()->getNextCommand(); 59 oem_sel.cmd = hostCmd.first; 60 oem_sel.data[0] = hostCmd.second; 61 62 // All '0xFF' since unused. 63 std::memset(&oem_sel.data[1], 0xFF, 3); 64 65 // Pack the actual response 66 std::memcpy(response, &oem_sel, *data_len); 67 return rc; 68 } 69 70 //--------------------------------------------------------------------- 71 // Called by Host on seeing a SMS_ATN bit set. Return a hardcoded 72 // value of 0x2 indicating we need Host read some data. 73 //------------------------------------------------------------------- 74 ipmi::RspType<uint8_t> ipmiAppGetMessageFlags() 75 { 76 // From IPMI spec V2.0 for Get Message Flags Command : 77 // bit:[1] from LSB : 1b = Event Message Buffer Full. 78 // Return as 0 if Event Message Buffer is not supported, 79 // or when the Event Message buffer is disabled. 80 // This path is used to communicate messages to the host 81 // from within the phosphor::host::command::Manager 82 constexpr uint8_t setEventMsgBufferFull = 0x2; 83 return ipmi::responseSuccess(setEventMsgBufferFull); 84 } 85 86 ipmi_ret_t ipmi_app_get_bmc_global_enables(ipmi_netfn_t netfn, ipmi_cmd_t cmd, 87 ipmi_request_t request, 88 ipmi_response_t response, 89 ipmi_data_len_t data_len, 90 ipmi_context_t context) 91 { 92 ipmi_ret_t rc = IPMI_CC_OK; 93 if (0 != *data_len) 94 { 95 *data_len = 0; 96 return IPMI_CC_REQ_DATA_LEN_INVALID; 97 } 98 *data_len = sizeof(globalEnablesDefault); 99 *reinterpret_cast<uint8_t*>(response) = globalEnablesDefault; 100 return rc; 101 } 102 103 ipmi_ret_t ipmi_app_set_bmc_global_enables(ipmi_netfn_t netfn, ipmi_cmd_t cmd, 104 ipmi_request_t request, 105 ipmi_response_t response, 106 ipmi_data_len_t data_len, 107 ipmi_context_t context) 108 { 109 ipmi_ret_t rc = IPMI_CC_OK; 110 111 uint8_t reqMask = *reinterpret_cast<uint8_t*>(request); 112 if (sizeof(reqMask) != *data_len) 113 { 114 *data_len = 0; 115 return IPMI_CC_REQ_DATA_LEN_INVALID; 116 } 117 118 *data_len = 0; 119 // Recv Message Queue and SEL are enabled by default. 120 // Event Message buffer are disabled by default (not supported). 121 // Any request that try to change the mask will be rejected 122 if (reqMask != (selEnable | recvMsgQueueEnable)) 123 { 124 return IPMI_CC_INVALID_FIELD_REQUEST; 125 } 126 return rc; 127 } 128 129 namespace 130 { 131 // Static storage to keep the object alive during process life 132 std::unique_ptr<phosphor::host::command::Host> host 133 __attribute__((init_priority(101))); 134 std::unique_ptr<sdbusplus::server::manager::manager> objManager 135 __attribute__((init_priority(101))); 136 } // namespace 137 138 void register_netfn_app_functions() 139 { 140 141 // <Read Event Message Buffer> 142 ipmi_register_callback(NETFUN_APP, IPMI_CMD_READ_EVENT, NULL, 143 ipmi_app_read_event, SYSTEM_INTERFACE); 144 145 // <Set BMC Global Enables> 146 ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_BMC_GLOBAL_ENABLES, NULL, 147 ipmi_app_set_bmc_global_enables, SYSTEM_INTERFACE); 148 149 // <Get BMC Global Enables> 150 ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_BMC_GLOBAL_ENABLES, NULL, 151 ipmi_app_get_bmc_global_enables, SYSTEM_INTERFACE); 152 153 // <Get Message Flags> 154 ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnApp, 155 ipmi::app::cmdGetMessageFlags, ipmi::Privilege::Admin, 156 ipmiAppGetMessageFlags); 157 158 // Create new xyz.openbmc_project.host object on the bus 159 auto objPath = std::string{CONTROL_HOST_OBJ_MGR} + '/' + HOST_NAME + '0'; 160 161 std::unique_ptr<sdbusplus::asio::connection>& sdbusp = 162 ipmid_get_sdbus_plus_handler(); 163 164 // Add sdbusplus ObjectManager. 165 objManager = std::make_unique<sdbusplus::server::manager::manager>( 166 *sdbusp, CONTROL_HOST_OBJ_MGR); 167 168 host = std::make_unique<phosphor::host::command::Host>(*sdbusp, 169 objPath.c_str()); 170 sdbusp->request_name(CONTROL_HOST_BUSNAME); 171 172 return; 173 } 174