apphandler.C - openbmc/phosphor-host-ipmid - Gitiles

 #include "apphandler.h"
 #include "ipmid-api.h"
 #include "ipmid.H"
 #include <stdio.h>
 #include <string.h>
 #include <stdint.h>
 #include <systemd/sd-bus.h>

 extern sd_bus *bus;

 void register_netfn_app_functions() __attribute__((constructor));

 //---------------------------------------------------------------------
 // Called by Host on seeing a SMS_ATN bit set. Return a hardcoded
 // value of 0x2 indicating we need Host read some data.
 //-------------------------------------------------------------------
 ipmi_ret_t ipmi_app_get_msg_flags(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
 	// Generic return from IPMI commands.
     ipmi_ret_t rc = IPMI_CC_OK;

     printf("IPMI APP GET MSG FLAGS returning with [bit:2] set\n");

 	// From IPMI spec V2.0 for Get Message Flags Command :
 	// bit:[1] from LSB : 1b = Event Message Buffer Full.
 	// Return as 0 if Event Message Buffer is not supported,
 	// or when the Event Message buffer is disabled.
 	// TODO. For now. assume its not disabled and send "0x2" anyway:

 	uint8_t set_event_msg_buffer_full = 0x2;
     *data_len = sizeof(set_event_msg_buffer_full);

     // Pack the actual response
     memcpy(response, &set_event_msg_buffer_full, *data_len);

     return rc;
 }

 //-------------------------------------------------------------------
 // Called by Host post response from Get_Message_Flags
 //-------------------------------------------------------------------
 ipmi_ret_t ipmi_app_read_event(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_CC_OK;
     printf("IPMI APP READ EVENT command received\n");

 	// TODO : For now, this is catering only to the Soft Power Off via OEM SEL
 	//        mechanism. If we need to make this generically used for some
 	//        other conditions, then we can take advantage of context pointer.

 	struct oem_sel_timestamped soft_off = {0};
     *data_len = sizeof(struct oem_sel_timestamped);

 	// either id[0] -or- id[1] can be filled in. We will use id[0]
 	soft_off.id[0]	 = SEL_OEM_ID_0;
 	soft_off.id[1]	 = SEL_OEM_ID_0;
 	soft_off.type	 = SEL_RECORD_TYPE_OEM;

 	// Following 3 bytes are from IANA Manufactre_Id field. See below
 	soft_off.manuf_id[0]= 0x41;
 	soft_off.manuf_id[1]= 0xA7;
 	soft_off.manuf_id[2]= 0x00;

 	// per IPMI spec NetFuntion for OEM
 	soft_off.netfun	 = 0x3A;

 	// Mechanism to kick start soft shutdown.
 	soft_off.cmd	 = CMD_POWER;
 	soft_off.data[0] = SOFT_OFF;

 	// All '0xFF' since unused.
 	memset(&soft_off.data[1], 0xFF, 3);

     // Pack the actual response
     memcpy(response, &soft_off, *data_len);
     return rc;
 }

 ipmi_ret_t ipmi_app_set_acpi_power_state(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_CC_OK;
     *data_len = 0;

     printf("IPMI SET ACPI STATE Ignoring for now\n");
     return rc;
 }

 ipmi_ret_t ipmi_app_get_device_id(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_CC_OK;

     // TODO:
     // This value is the IANA number assigned to "IBM Platform Firmware
     // Division", which is also used by our service processor.  We may want
     // a different number or at least a different version?
     uint8_t str[] = {0x00, 0, 1, 1,2, 0xD, 0x41, 0xA7, 0x00, 0x43, 0x40};

     // Data length
     *data_len = sizeof(str);

     // Pack the actual response
     memcpy(response, &str, *data_len);
     return rc;
 }

 ipmi_ret_t ipmi_app_get_device_guid(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     const char  *busname = "org.openbmc.control.Chassis";
     const char  *objname = "/org/openbmc/control/chassis0";
     const char  *iface = "org.freedesktop.DBus.Properties";
     const char  *chassis_iface = "org.openbmc.control.Chassis";
     sd_bus_message *reply = NULL, *m = NULL;
     sd_bus_error error = SD_BUS_ERROR_NULL;
     int r = 0;
     char *uuid = NULL;

     // Status code.
     ipmi_ret_t rc = IPMI_CC_OK;
     *data_len = 0;

     printf("IPMI GET DEVICE GUID\n");

     // Call Get properties method with the interface and property name
     r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"Get");
     if (r < 0) {
         fprintf(stderr, "Failed to add the Get method object: %s\n", strerror(-r));
         return IPMI_CC_UNSPECIFIED_ERROR;
     }
     r = sd_bus_message_append(m, "ss", chassis_iface, "uuid");
     if (r < 0) {
         fprintf(stderr, "Failed to append arguments: %s\n", strerror(-r));
         return -1;
     }
     r = sd_bus_call(bus, m, 0, &error, &reply);
     if (r < 0) {
         fprintf(stderr, "Failed to call the Get method: %s\n", strerror(-r));
         return IPMI_CC_UNSPECIFIED_ERROR;
     }
     r = sd_bus_message_read(reply, "v", "s", &uuid);
     if (r < 0) {
         fprintf(stderr, "Failed to get a response: %s", strerror(-r));
         return IPMI_CC_RESPONSE_ERROR;
     }
     if (uuid == NULL)
     {
         fprintf(stderr, "Failed to get a valid response: %s", strerror(-r));
         return IPMI_CC_RESPONSE_ERROR;
     }

     // UUID is in RFC4122 format. Ex: 61a39523-78f2-11e5-9862-e6402cfc3223
     // Per IPMI Spec 2.0 need to convert to 16 hex bytes and reverse the byte order
     // Ex: 0x2332fc2c40e66298e511f2782395a361

     const int resp_size = 16; // Response is 16 hex bytes per IPMI Spec
     uint8_t resp_uuid[resp_size]; // Array to hold the formatted response
     int resp_loc = resp_size-1; // Point resp end of array to save in reverse order
     int i = 0;
     char *tokptr = NULL;

     // Traverse the UUID
     char* id_octet = strtok_r(uuid, "-", &tokptr); // Get the UUID octects separated by dash

     if (id_octet == NULL)
     { // Error
         fprintf(stderr, "Unexpected UUID format: %s", uuid);
         return IPMI_CC_RESPONSE_ERROR;
     }

     while (id_octet != NULL)
     {
         // Calculate the octet string size since it varies
         // Divide it by 2 for the array size since 1 byte is built from 2 chars
         int tmp_size = strlen(id_octet)/2;

         for(i = 0; i < tmp_size; i++)
         {
             char tmp_array[3] = {0}; // Holder of the 2 chars that will become a byte
             strncpy(tmp_array, id_octet, 2); // 2 chars at a time

             int resp_byte = strtoul(tmp_array, NULL, 16); // Convert to hex byte
             memcpy((void*)&resp_uuid[resp_loc], &resp_byte, 1); // Copy end to first
             resp_loc--;
             id_octet+=2; // Finished with the 2 chars, advance
         }
         id_octet=strtok_r(NULL, "-", &tokptr); // Get next octet
     }

     // Data length
     *data_len = resp_size;

     // Pack the actual response
     memcpy(response, &resp_uuid, *data_len);

     sd_bus_error_free(&error);
     sd_bus_message_unref(m);

     return rc;
 }

 ipmi_ret_t ipmi_app_get_bt_capabilities(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     printf("Handling Netfn:[0x%X], Cmd:[0x%X]\n",netfn,cmd);

     // Status code.
     ipmi_ret_t rc = IPMI_CC_OK;

     uint8_t str[] = {0x01, MAX_IPMI_BUFFER, MAX_IPMI_BUFFER, 0x0A, 0x01};

     // Data length
     *data_len = sizeof(str);

     // Pack the actual response
     memcpy(response, &str, *data_len);

     return rc;
 }


 struct set_wd_data_t {
     uint8_t t_use;
     uint8_t t_action;
     uint8_t preset;
     uint8_t flags;
     uint8_t ls;
     uint8_t ms;
 }  __attribute__ ((packed));


 ipmi_ret_t ipmi_app_set_watchdog(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     const char  *busname = "org.openbmc.watchdog.Host";
     const char  *objname = "/org/openbmc/watchdog/host0";
     const char  *iface = "org.openbmc.Watchdog";
     sd_bus_message *reply = NULL, *m = NULL;
     sd_bus_error error = SD_BUS_ERROR_NULL;
     int r = 0;

     set_wd_data_t *reqptr = (set_wd_data_t*) request;
     uint16_t timer = 0;
     uint32_t timer_ms = 0;
     // Status code.
     ipmi_ret_t rc = IPMI_CC_OK;

     *data_len = 0;

     // Get number of 100ms intervals
     timer = (((uint16_t)reqptr->ms) << 8) + reqptr->ls;
     // Get timer value in ms
     timer_ms = timer * 100;

     printf("WATCHDOG SET Timer:[0x%X] 100ms intervals\n",timer);

     // Set watchdog timer
     r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"set");
     if (r < 0) {
         fprintf(stderr, "Failed to add the set method object: %s\n", strerror(-r));
         return -1;
     }
     r = sd_bus_message_append(m, "i", timer_ms);
     if (r < 0) {
         fprintf(stderr, "Failed to add timer value: %s\n", strerror(-r));
         return -1;
     }
     r = sd_bus_call(bus, m, 0, &error, &reply);
     if (r < 0) {
         fprintf(stderr, "Failed to call the set method: %s\n", strerror(-r));
         return -1;
     }

     // Stop the current watchdog if any
     r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"stop");
     if (r < 0) {
         fprintf(stderr, "Failed to add the start method object: %s\n", strerror(-r));
         return -1;
     }
     r = sd_bus_call(bus, m, 0, &error, &reply);
     if (r < 0) {
         fprintf(stderr, "Failed to call the start method: %s\n", strerror(-r));
         return -1;
     }

     // Start the watchdog if requested
     if (reqptr->t_use & 0x40)
     {
         r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"start");
         if (r < 0) {
             fprintf(stderr, "Failed to add the start method object: %s\n", strerror(-r));
             return -1;
         }
         r = sd_bus_call(bus, m, 0, &error, &reply);
         if (r < 0) {
             fprintf(stderr, "Failed to call the start method: %s\n", strerror(-r));
             return -1;
         }
     }

     sd_bus_error_free(&error);
     sd_bus_message_unref(m);

     return rc;
 }


 ipmi_ret_t ipmi_app_reset_watchdog(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     const char  *busname = "org.openbmc.watchdog.Host";
     const char  *objname = "/org/openbmc/watchdog/host0";
     const char  *iface = "org.openbmc.Watchdog";
     sd_bus_message *reply = NULL, *m = NULL;
     sd_bus_error error = SD_BUS_ERROR_NULL;
     int r = 0;

     // Status code.
     ipmi_ret_t rc = IPMI_CC_OK;
     *data_len = 0;

     printf("WATCHDOG RESET\n");

     // Refresh watchdog
     r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"poke");
     if (r < 0) {
         fprintf(stderr, "Failed to add the method object: %s\n", strerror(-r));
         return -1;
     }
     r = sd_bus_call(bus, m, 0, &error, &reply);
     if (r < 0) {
         fprintf(stderr, "Failed to call the method: %s\n", strerror(-r));
         return -1;
     }

     sd_bus_error_free(&error);
     sd_bus_message_unref(m);

     return rc;
 }

 // ATTENTION: This ipmi function is very hardcoded on purpose
 // OpenBMC does not fully support IPMI.  This command is useful
 // to have around because it enables testing of interfaces with
 // the IPMI tool.
 #define GET_CHANNEL_INFO_CHANNEL_OFFSET 0
 // IPMI Table 6-2
 #define IPMI_CHANNEL_TYPE_IPMB 1
 // IPMI Table 6-3
 #define IPMI_CHANNEL_MEDIUM_TYPE_OTHER 6

 ipmi_ret_t ipmi_app_channel_info(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_CC_OK;
     uint8_t resp[] = {
         1,
         IPMI_CHANNEL_MEDIUM_TYPE_OTHER,
         IPMI_CHANNEL_TYPE_IPMB,
         1,0x41,0xA7,0x00,0,0};
     uint8_t *p = (uint8_t*) request;

     printf("IPMI APP GET CHANNEL INFO\n");

     // I"m only supporting channel 1.  0xE is the 'default channel'
     if (*p == 0xe || *p == 1) {

         *data_len = sizeof(resp);
         memcpy(response, resp, *data_len);

     } else {
         rc = IPMI_CC_PARM_OUT_OF_RANGE;
         *data_len = 0;
     }

     return rc;
 }

 ipmi_ret_t ipmi_app_set_bmc_global_enables(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                              ipmi_request_t request, ipmi_response_t response,
                              ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_CC_OK;
     *data_len = 0;

     // Event and message logging enabled by default so return for now
     printf("IPMI APP SET BMC GLOBAL ENABLES Ignoring for now\n");

     return rc;
 }


 ipmi_ret_t ipmi_app_wildcard_handler(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                               ipmi_request_t request, ipmi_response_t response,
                               ipmi_data_len_t data_len, ipmi_context_t context)
 {
     printf("Handling WILDCARD Netfn:[0x%X], Cmd:[0x%X]\n",netfn, cmd);

     // Status code.
     ipmi_ret_t rc = IPMI_CC_OK;

     *data_len = strlen("THIS IS WILDCARD");

     // Now pack actual response
     memcpy(response, "THIS IS WILDCARD", *data_len);

     return rc;
 }

 void register_netfn_app_functions()
 {
     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_CAP_BIT);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_CAP_BIT, NULL, ipmi_app_get_bt_capabilities);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_WILDCARD);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_WILDCARD, NULL, ipmi_app_wildcard_handler);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_RESET_WD);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_RESET_WD, NULL, ipmi_app_reset_watchdog);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_SET_WD);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_WD, NULL, ipmi_app_set_watchdog);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_DEVICE_ID);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_DEVICE_ID, NULL, ipmi_app_get_device_id);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_DEVICE_GUID);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_DEVICE_GUID, NULL, ipmi_app_get_device_guid);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_SET_ACPI);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_ACPI, NULL, ipmi_app_set_acpi_power_state);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_READ_EVENT);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_READ_EVENT, NULL, ipmi_app_read_event);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP,
                                             IPMI_CMD_SET_BMC_GLOBAL_ENABLES);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_BMC_GLOBAL_ENABLES, NULL,
                                             ipmi_app_set_bmc_global_enables);

     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_MSG_FLAGS);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_MSG_FLAGS, NULL, ipmi_app_get_msg_flags);


     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_CHAN_INFO);
     ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_CHAN_INFO, NULL, ipmi_app_channel_info);


     return;
 }
	#include "apphandler.h"
	#include "ipmid-api.h"
	#include "ipmid.H"
	#include <stdio.h>
	#include <string.h>
	#include <stdint.h>
	#include <systemd/sd-bus.h>

	extern sd_bus *bus;

	void register_netfn_app_functions() __attribute__((constructor));

	//---------------------------------------------------------------------
	// Called by Host on seeing a SMS_ATN bit set. Return a hardcoded
	// value of 0x2 indicating we need Host read some data.
	//-------------------------------------------------------------------
	ipmi_ret_t ipmi_app_get_msg_flags(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	// Generic return from IPMI commands.
	ipmi_ret_t rc = IPMI_CC_OK;

	printf("IPMI APP GET MSG FLAGS returning with [bit:2] set\n");

	// From IPMI spec V2.0 for Get Message Flags Command :
	// bit:[1] from LSB : 1b = Event Message Buffer Full.
	// Return as 0 if Event Message Buffer is not supported,
	// or when the Event Message buffer is disabled.
	// TODO. For now. assume its not disabled and send "0x2" anyway:

	uint8_t set_event_msg_buffer_full = 0x2;
	*data_len = sizeof(set_event_msg_buffer_full);

	// Pack the actual response
	memcpy(response, &set_event_msg_buffer_full, *data_len);

	return rc;
	}

	//-------------------------------------------------------------------
	// Called by Host post response from Get_Message_Flags
	//-------------------------------------------------------------------
	ipmi_ret_t ipmi_app_read_event(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_CC_OK;
	printf("IPMI APP READ EVENT command received\n");

	// TODO : For now, this is catering only to the Soft Power Off via OEM SEL
	// mechanism. If we need to make this generically used for some
	// other conditions, then we can take advantage of context pointer.

	struct oem_sel_timestamped soft_off = {0};
	*data_len = sizeof(struct oem_sel_timestamped);

	// either id[0] -or- id[1] can be filled in. We will use id[0]
	soft_off.id[0] = SEL_OEM_ID_0;
	soft_off.id[1] = SEL_OEM_ID_0;
	soft_off.type = SEL_RECORD_TYPE_OEM;

	// Following 3 bytes are from IANA Manufactre_Id field. See below
	soft_off.manuf_id[0]= 0x41;
	soft_off.manuf_id[1]= 0xA7;
	soft_off.manuf_id[2]= 0x00;

	// per IPMI spec NetFuntion for OEM
	soft_off.netfun = 0x3A;

	// Mechanism to kick start soft shutdown.
	soft_off.cmd = CMD_POWER;
	soft_off.data[0] = SOFT_OFF;

	// All '0xFF' since unused.
	memset(&soft_off.data[1], 0xFF, 3);

	// Pack the actual response
	memcpy(response, &soft_off, *data_len);
	return rc;
	}

	ipmi_ret_t ipmi_app_set_acpi_power_state(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_CC_OK;
	*data_len = 0;

	printf("IPMI SET ACPI STATE Ignoring for now\n");
	return rc;
	}

	ipmi_ret_t ipmi_app_get_device_id(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_CC_OK;

	// TODO:
	// This value is the IANA number assigned to "IBM Platform Firmware
	// Division", which is also used by our service processor. We may want
	// a different number or at least a different version?
	uint8_t str[] = {0x00, 0, 1, 1,2, 0xD, 0x41, 0xA7, 0x00, 0x43, 0x40};

	// Data length
	*data_len = sizeof(str);

	// Pack the actual response
	memcpy(response, &str, *data_len);
	return rc;
	}

	ipmi_ret_t ipmi_app_get_device_guid(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	const char *busname = "org.openbmc.control.Chassis";
	const char *objname = "/org/openbmc/control/chassis0";
	const char *iface = "org.freedesktop.DBus.Properties";
	const char *chassis_iface = "org.openbmc.control.Chassis";
	sd_bus_message reply = NULL, m = NULL;
	sd_bus_error error = SD_BUS_ERROR_NULL;
	int r = 0;
	char *uuid = NULL;

	// Status code.
	ipmi_ret_t rc = IPMI_CC_OK;
	*data_len = 0;

	printf("IPMI GET DEVICE GUID\n");

	// Call Get properties method with the interface and property name
	r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"Get");
	if (r < 0) {
	fprintf(stderr, "Failed to add the Get method object: %s\n", strerror(-r));
	return IPMI_CC_UNSPECIFIED_ERROR;
	}
	r = sd_bus_message_append(m, "ss", chassis_iface, "uuid");
	if (r < 0) {
	fprintf(stderr, "Failed to append arguments: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_call(bus, m, 0, &error, &reply);
	if (r < 0) {
	fprintf(stderr, "Failed to call the Get method: %s\n", strerror(-r));
	return IPMI_CC_UNSPECIFIED_ERROR;
	}
	r = sd_bus_message_read(reply, "v", "s", &uuid);
	if (r < 0) {
	fprintf(stderr, "Failed to get a response: %s", strerror(-r));
	return IPMI_CC_RESPONSE_ERROR;
	}
	if (uuid == NULL)
	{
	fprintf(stderr, "Failed to get a valid response: %s", strerror(-r));
	return IPMI_CC_RESPONSE_ERROR;
	}

	// UUID is in RFC4122 format. Ex: 61a39523-78f2-11e5-9862-e6402cfc3223
	// Per IPMI Spec 2.0 need to convert to 16 hex bytes and reverse the byte order
	// Ex: 0x2332fc2c40e66298e511f2782395a361

	const int resp_size = 16; // Response is 16 hex bytes per IPMI Spec
	uint8_t resp_uuid[resp_size]; // Array to hold the formatted response
	int resp_loc = resp_size-1; // Point resp end of array to save in reverse order
	int i = 0;
	char *tokptr = NULL;

	// Traverse the UUID
	char* id_octet = strtok_r(uuid, "-", &tokptr); // Get the UUID octects separated by dash

	if (id_octet == NULL)
	{ // Error
	fprintf(stderr, "Unexpected UUID format: %s", uuid);
	return IPMI_CC_RESPONSE_ERROR;
	}

	while (id_octet != NULL)
	{
	// Calculate the octet string size since it varies
	// Divide it by 2 for the array size since 1 byte is built from 2 chars
	int tmp_size = strlen(id_octet)/2;

	for(i = 0; i < tmp_size; i++)
	{
	char tmp_array[3] = {0}; // Holder of the 2 chars that will become a byte
	strncpy(tmp_array, id_octet, 2); // 2 chars at a time

	int resp_byte = strtoul(tmp_array, NULL, 16); // Convert to hex byte
	memcpy((void*)&resp_uuid[resp_loc], &resp_byte, 1); // Copy end to first
	resp_loc--;
	id_octet+=2; // Finished with the 2 chars, advance
	}
	id_octet=strtok_r(NULL, "-", &tokptr); // Get next octet
	}

	// Data length
	*data_len = resp_size;

	// Pack the actual response
	memcpy(response, &resp_uuid, *data_len);

	sd_bus_error_free(&error);
	sd_bus_message_unref(m);

	return rc;
	}

	ipmi_ret_t ipmi_app_get_bt_capabilities(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	printf("Handling Netfn:[0x%X], Cmd:[0x%X]\n",netfn,cmd);

	// Status code.
	ipmi_ret_t rc = IPMI_CC_OK;

	uint8_t str[] = {0x01, MAX_IPMI_BUFFER, MAX_IPMI_BUFFER, 0x0A, 0x01};

	// Data length
	*data_len = sizeof(str);

	// Pack the actual response
	memcpy(response, &str, *data_len);

	return rc;
	}


	struct set_wd_data_t {
	uint8_t t_use;
	uint8_t t_action;
	uint8_t preset;
	uint8_t flags;
	uint8_t ls;
	uint8_t ms;
	} __attribute__ ((packed));



	ipmi_ret_t ipmi_app_set_watchdog(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	const char *busname = "org.openbmc.watchdog.Host";
	const char *objname = "/org/openbmc/watchdog/host0";
	const char *iface = "org.openbmc.Watchdog";
	sd_bus_message reply = NULL, m = NULL;
	sd_bus_error error = SD_BUS_ERROR_NULL;
	int r = 0;

	set_wd_data_t reqptr = (set_wd_data_t) request;
	uint16_t timer = 0;
	uint32_t timer_ms = 0;
	// Status code.
	ipmi_ret_t rc = IPMI_CC_OK;

	*data_len = 0;

	// Get number of 100ms intervals
	timer = (((uint16_t)reqptr->ms) << 8) + reqptr->ls;
	// Get timer value in ms
	timer_ms = timer * 100;

	printf("WATCHDOG SET Timer:[0x%X] 100ms intervals\n",timer);

	// Set watchdog timer
	r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"set");
	if (r < 0) {
	fprintf(stderr, "Failed to add the set method object: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_message_append(m, "i", timer_ms);
	if (r < 0) {
	fprintf(stderr, "Failed to add timer value: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_call(bus, m, 0, &error, &reply);
	if (r < 0) {
	fprintf(stderr, "Failed to call the set method: %s\n", strerror(-r));
	return -1;
	}

	// Stop the current watchdog if any
	r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"stop");
	if (r < 0) {
	fprintf(stderr, "Failed to add the start method object: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_call(bus, m, 0, &error, &reply);
	if (r < 0) {
	fprintf(stderr, "Failed to call the start method: %s\n", strerror(-r));
	return -1;
	}

	// Start the watchdog if requested
	if (reqptr->t_use & 0x40)
	{
	r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"start");
	if (r < 0) {
	fprintf(stderr, "Failed to add the start method object: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_call(bus, m, 0, &error, &reply);
	if (r < 0) {
	fprintf(stderr, "Failed to call the start method: %s\n", strerror(-r));
	return -1;
	}
	}

	sd_bus_error_free(&error);
	sd_bus_message_unref(m);

	return rc;
	}


	ipmi_ret_t ipmi_app_reset_watchdog(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	const char *busname = "org.openbmc.watchdog.Host";
	const char *objname = "/org/openbmc/watchdog/host0";
	const char *iface = "org.openbmc.Watchdog";
	sd_bus_message reply = NULL, m = NULL;
	sd_bus_error error = SD_BUS_ERROR_NULL;
	int r = 0;

	// Status code.
	ipmi_ret_t rc = IPMI_CC_OK;
	*data_len = 0;

	printf("WATCHDOG RESET\n");

	// Refresh watchdog
	r = sd_bus_message_new_method_call(bus,&m,busname,objname,iface,"poke");
	if (r < 0) {
	fprintf(stderr, "Failed to add the method object: %s\n", strerror(-r));
	return -1;
	}
	r = sd_bus_call(bus, m, 0, &error, &reply);
	if (r < 0) {
	fprintf(stderr, "Failed to call the method: %s\n", strerror(-r));
	return -1;
	}

	sd_bus_error_free(&error);
	sd_bus_message_unref(m);

	return rc;
	}

	// ATTENTION: This ipmi function is very hardcoded on purpose
	// OpenBMC does not fully support IPMI. This command is useful
	// to have around because it enables testing of interfaces with
	// the IPMI tool.
	#define GET_CHANNEL_INFO_CHANNEL_OFFSET 0
	// IPMI Table 6-2
	#define IPMI_CHANNEL_TYPE_IPMB 1
	// IPMI Table 6-3
	#define IPMI_CHANNEL_MEDIUM_TYPE_OTHER 6

	ipmi_ret_t ipmi_app_channel_info(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_CC_OK;
	uint8_t resp[] = {
	1,
	IPMI_CHANNEL_MEDIUM_TYPE_OTHER,
	IPMI_CHANNEL_TYPE_IPMB,
	1,0x41,0xA7,0x00,0,0};
	uint8_t p = (uint8_t) request;

	printf("IPMI APP GET CHANNEL INFO\n");

	// I"m only supporting channel 1. 0xE is the 'default channel'
	if (p == 0xe \|\| p == 1) {

	*data_len = sizeof(resp);
	memcpy(response, resp, *data_len);

	} else {
	rc = IPMI_CC_PARM_OUT_OF_RANGE;
	*data_len = 0;
	}

	return rc;
	}

	ipmi_ret_t ipmi_app_set_bmc_global_enables(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_CC_OK;
	*data_len = 0;

	// Event and message logging enabled by default so return for now
	printf("IPMI APP SET BMC GLOBAL ENABLES Ignoring for now\n");

	return rc;
	}



	ipmi_ret_t ipmi_app_wildcard_handler(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	printf("Handling WILDCARD Netfn:[0x%X], Cmd:[0x%X]\n",netfn, cmd);

	// Status code.
	ipmi_ret_t rc = IPMI_CC_OK;

	*data_len = strlen("THIS IS WILDCARD");

	// Now pack actual response
	memcpy(response, "THIS IS WILDCARD", *data_len);

	return rc;
	}

	void register_netfn_app_functions()
	{
	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_CAP_BIT);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_CAP_BIT, NULL, ipmi_app_get_bt_capabilities);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_WILDCARD);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_WILDCARD, NULL, ipmi_app_wildcard_handler);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_RESET_WD);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_RESET_WD, NULL, ipmi_app_reset_watchdog);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_SET_WD);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_WD, NULL, ipmi_app_set_watchdog);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_DEVICE_ID);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_DEVICE_ID, NULL, ipmi_app_get_device_id);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_DEVICE_GUID);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_DEVICE_GUID, NULL, ipmi_app_get_device_guid);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_SET_ACPI);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_ACPI, NULL, ipmi_app_set_acpi_power_state);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_READ_EVENT);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_READ_EVENT, NULL, ipmi_app_read_event);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP,
	IPMI_CMD_SET_BMC_GLOBAL_ENABLES);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_SET_BMC_GLOBAL_ENABLES, NULL,
	ipmi_app_set_bmc_global_enables);

	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_MSG_FLAGS);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_MSG_FLAGS, NULL, ipmi_app_get_msg_flags);


	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_APP, IPMI_CMD_GET_CHAN_INFO);
	ipmi_register_callback(NETFUN_APP, IPMI_CMD_GET_CHAN_INFO, NULL, ipmi_app_channel_info);



	return;
	}