FFSTProbe
FFSTProbe performs the requested services and returns control to the caller. This function provides a series of functions that includes logging and dump creation.
Syntax
FFSTProbe (pProductInfo, pFFSTParms)
Parameters
- pProductInfo (PPRODUCTINFO) - input
- Pointer to the product-information packet.
- pFFSTParms (PFFSTPARMS) - input
- A parameter packet that describes the information provided with the FFSTProbe.
Return Code
- rc (APIRET) - returns
- Return code.
FFSTProbe returns one of the following values:
From FFSTProbe to application
- 1000000 No error
Invalid Pointers passed in by the API user
- 1000005 Invalid product address
- 1000010 Invalid FFST address
- 1000015 Invalid proddata address
- 1000016 Invalid message address
- 1000017 Invalid pmsginsdata address
- 1000020 Invalid DMI address
- 1000025 Invalid dump address
- 1000026 Invalid pdumpuserdata address
- 1000030 Invalid user area address
- 1000035 Invalid log data address
- 1000040 Invalid insert messages address
- 1000045 Invalid vendor tag address
- 1000050 Invalid tag address
- 1000055 Invalid modulename address
- 1000060 Invalid revision address
- 1000065 Invalid product id address
- 1000070 Invalid DMI fixlvl address
- 1000075 Invalid tempfn address
- 1000080 Invalid user structure title address
- 1000085 Invalid config subproddata address
- 1000090 Invalid DMI modification level address
Invalid Packet Revision Numbers
- 1000095 Invalid product revision
- 1000100 Invalid DMI revision
- 1000105 Invalid FFST revision
Invalid severity
- 1000110 Invalid severity
Invalid number of dumps specified by user
- 1000115 Invalid user dump number
Invalid number of insert texts
- 1000120 Invalid inserts number
- 1000125 Invalid insert text address
Invalid probe flags
- 1000130 Invalid probe flags
Invalid PSTAT data and process environment data
- 1000135 Invalid PSTAT data
- 1000140 Invalid process environment
Invalid packet sizes
- 1000145 Invalid PRODUCTDATA packet size
- 1000150 Invalid DMIDATA packet size
- 1000155 Invalid FFSTPARMS packet size
DLL load and query
- 1000160 DLL query proc error
- 1000165 DLL load error
FFSTProbe pipe errors
- 1000170 Client pipe not created
- 1000175 Client pipe not opened
Multiple errors occurring during probe processing
- 1000180 Multiple system errors
Misc. Return codes
- 1000185 Client proc in exit list processing
- 1000186 UniCode conversion error
FFSTProbe not active
Returned to application and not to ERRLOG.
- 1000190 FFST not active
- Return codes from FFSTProbe, FFSTQueryConfiguration, FFSTSetConfiguration or other FFST processing.
Return codes for shared memory errors
- 0x16580 Get shared mem error
- 0x16581 Alloc shared mem error
- 0x16582 Free shared mem error
Return codes for semaphore errors
- 0x1658A Semaphore timeout error
- 0x1658B Semaphore open error
- 0x1658C Semaphore release error
- 0x1658D Semaphore close error
- 0x1658E Semaphore request error
- 0x17111 Semaphore g error
Return codes for dump engine processing which may be posted to the SysLog.
- 0x16595 Dump hdr file open error
- 0x16596 Index file open error
- 0x16597 Dump file open error
- 0x16598 Memory allocation error
- 0x16599 Queryfs error
- 0x1659a Dump wrap error
- 0x1659b Trace rename error
- 0x17222 Proc dump rename error
Return codes that may be in the SysLog during Worker bringup
- 0x165a1 Create config semaphore error
- 0x165a2 Create dump semaphore error
- 0x165a3 Worker alloc shared mem error
- 0x165a4 Worker get shared mem error
- 0x165a5 Create pct semaphore error
- 0x165a6 File already exists
- 0x165a7 Specified file not found
- 0x165a8 Dump validation error
- 0x165a9 Config memory filled
- 0x165aa Worker setconfig error
- 0x165ab Worker pipe not created
- 0x17005 Worker ffst config not okay
- 0x165ac Worker mutexsem not released
- 0x17010 Worker already active
- 0x17015 Worker initworker failed
- 0x17050 Worker not active
Remarks
The library FFST.LIB must be linked with object files that use FFSTProbe.
The packet_revision_number parameter defines if pointers point to ASCII or UniCode character data.
Example Code
The following example adds an error (235) to the Default Log file for this service. The error has no message inserts, user data, dump file, or extra data. Product information will be retrieved from the DMI database entry that was created when the product (TEST PRODUCT) was installed.
/**************************************************************************/
/* probe.c: FFSTProbe sample */
/* */
/* This test program gives an example of using the FFSTProbe API and the */
/* TraceCreateEntry API by using 'wrapper' functions. The dummy API */
/* My_Dummy_Api returns a return code which is then used as the basis of */
/* firing a FFSTProbe via the wrapper function, callFFST. callFFST can */
/* be modified to include more or less data as needed. */
/* */
/**************************************************************************/
#define INCL_DOS
#define INCL_DOSMEMMGR
#define INCL_DOSPROCESS
#define INCL_FFST
#define NO_ERROR 0
#include <os2.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <FFST.h>
#include <trace.h>
/**************************************************************************/
/* Define probe ID for FFSTProbe called when dummy API fails. Probe ID */
/* is the unique identifier you use later to find the source of the */
/* failure. It should be unique within a DMI triplet (explained later) */
/* or within your product */
/**************************************************************************/
#define DUMMY_API_PROBE 22222
void callFFST ( ULONG input_version, /* FFST 'Wrapper' Function */
/* input version lets you change the wrapper */
/* without changing each call, just make sure */
/* the wrapper still treats the 'old' version */
/* the same and that any new code is */
/* conditioned on a new input_version # */
ULONG input_probe_flags, /* FFSTProbe probe flags */
ULONG input_severity, /* FFSTProbe severity */
ULONG input_probe_id, /* FFSTProbe ID */
CHAR* input_module_name, /* module name passed to probe */
ULONG input_log_data_length, /* log data length for the
system error log */
PVOID input_pError_log_data, /* pointer to the data for
system error log */
int argc);
/*****************************************************/
/* This is for a common trace entry routine */
/*****************************************************/
#define HKWD_TEST 220 /* major code */
#define hkwd_test_entry 0x0001 /* minor code for entry */
#define hkwd_test_exit 0x8001 /* minor code for exit */
struct
{
int count;
char text[12];
} trace_capture_start, trace_capture_end;
APIRET trace_out(ULONG major, ULONG minor, void *trace_data,
ULONG data_len); /* trace wrapper function */
/**************************************/
/* End of trace declarations for Main */
/**************************************/
ULONG My_Dummy_API(ULONG Mydata);
/**************************************************************************/
/* */
/* Main Application (this uses the callFFST wrapper function). */
/* */
/**************************************************************************/
int main ( int argc, char * argv[], char * envp )
{
ULONG rc = 0;
ULONG Mydata = 2;
ULONG userDataLen = 0;
PVOID pUserData = NULL;
printf ( "Starting FFSTProbe Sample \n" );
/**************************************/
/* Do the trace entry point */
/**************************************/
trace_capture_start.count = 3; /* just a number */
strncpy(trace_capture_start.text, "Start main", 12);
/******** CALL TraceCreateEntry function ****/
trace_out(HKWD_TEST,
hkwd_test_entry,
&trace_capture_start,
sizeof(trace_capture_start));
/***********************************************************************/
/* call the 'dummy' API so it returns a non-zero rc */
/***********************************************************************/
rc = My_Dummy_API ( Mydata );
if ( rc != NO_ERROR )
{
/********************************************************************/
/* The API has failed. Setup the userData to contain the failing rc */
/********************************************************************/
pUserData = calloc ( 2, sizeof ( ULONG ) );
memcpy ( pUserData, &rc, sizeof ( ULONG ) );
memcpy ( ( PBYTE ) pUserData + sizeof ( ULONG )
, &Mydata, sizeof ( ULONG ) );
/****************************************************************************/
/* Call the FFSTProbe wrapper function with a version of 1, */
/* Have FFST post the process status and environment variables in the */
/* syslog, a severity of 4, a probe id of DUMMY_API_PROBE which was */
/* previously defined as 22222, a module name of 'my_module_1', the length */
/* of logusrdta, the logUserData (equal to the failing rc (1) as */
/* setup above) and Argc is passed in to determine whether or not data */
/* should be retrieved from DMI. */
/****************************************************************************/
callFFST ( 1
, PSTAT_FLAG º PROC_ENV_FLAG
, SEVERITY4
, DUMMY_API_PROBE
, "my_module_1"
, 2 * sizeof ( ULONG )
, pUserData
, argc );
}
if (pUserData != NULL)
{
free(pUserData);
pUserData = NULL;
}
if (argc > 1)
{
printf("\nFFSTProbe sample ended not using DMI component:\n\n\n");
}
else
{
printf("\nFFSTProbe sample ended using DMI component:\n\n\n");
}
/**************************************/
/* Do the trace end point */
/**************************************/
trace_capture_end.count = 99;
strncpy(trace_capture_end.text, "End main", 12);
/******** CALL TraceCreateEntry function ****/
trace_out(HKWD_TEST,
hkwd_test_entry,
&trace_capture_end,
sizeof(trace_capture_end));
return 0;
}
/**************************************************************************/
/* callFFST is the FFSTProbe wrapper function. It allows you to code the */
/* FFSTProbe API once with data that is static as far as your usage is */
/* concerned and allows you to pass in dynamic data. It also helps */
/* insulate your code if you decide to change your 'static' options */
/**************************************************************************/
void callFFST ( ULONG input_version, /* FFST 'Wrapper' Function */
ULONG input_probe_flags, /* FFSTProbe probe flags */
ULONG input_severity, /* FFSTProbe severity */
ULONG input_probe_id, /* FFSTProbe ID */
CHAR* input_module_name, /* module name passed to probe */
ULONG input_log_data_length, /* log data length for the
system error log */
PVOID input_pError_log_data, /* pointer to the data for
system error log */
int argc)
{
APIRET rc = 0;
PVOID pvar_n0;
ULONG pvar_n1;
/***********************************************************************/
/* FFSTProbe API structures. Described in the API Guide */
/***********************************************************************/
FFSTPARMS FFSTParms;
PRODUCTINFO productInfo;
PRODUCTDATA productData;
DMIDATA DMIData;
DUMPUSERDATA dumpUserData;
MSGINSDATA msgInsData;
/***********************************************************************/
/* The PRODUCTDATA structure defines the DMI triplet which allows */
/* additional product information, including template repository */
/* filename, to be retrieved from DMI. DMI is a industry standard */
/* for desktop mgt */
/***********************************************************************/
productData.packet_size = sizeof ( productData );
productData.packet_revision_number = PRODUCTDATA_ASCII;
/* data can be ASCII or UNI */
productData.DMI_tag = "FFSTProbe Sample";
/* Customize for your program */
productData.DMI_vendor_tag = "IBM";
/*Customize for your company */
productData.DMI_revision = "1.00"; /* Customize */
/***********************************************************************/
/* The DMIDATA structure below is the information which can either be */
/* retrieved by DMI or passed in by the FFSTProbe function. The */
/* preferred method is to use DMI. In the example below, you can see */
/* the use of either depending on whether or not a parm was passed on */
/* call to this program */
/***********************************************************************/
if ( !(argc > 1) )
{
/********************************************************************/
/* Setting this structure to NULL indicates that the information is */
/* to be retrieved from DMI using the DMI triplet as defined in the */
/* productData structure. This is the preferred method. */
/* Other files in this example show how to build your own DMI */
/********************************************************************/
productInfo.pDMIData = NULL;
/********************************************************************/
/* Note: This shows the usage of message insert text and is NOT part*/
/* of the information that could or could not be retrieved from DMI */
/* This is included as an example of MsgInsTxt and how it can be */
/* used to send probe specific data to the SYSLOG (System Error Log)*/
/********************************************************************/
msgInsData.MsgInsTxt[0].insert_number = 1;
msgInsData.MsgInsTxt[0].insert_text = "We did use a DMI component";
}
else
{
/********************************************************************/
/* fill the DMI data structure - useful only in test environments */
/********************************************************************/
DMIData.packet_size = sizeof ( DMIData );
DMIData.packet_revision_number = DMIDATA_ASCII;
/* could be unicode instead */
DMIData.DMI_product_ID = "FFST_toolkt_sample";
/* note this is different than tag */
DMIData.DMI_modification_level = "000000";
DMIData.DMI_fix_level = "010101";
DMIData.template_filename = "PROBE.REP";
/* this file must be on the DPATH */
DMIData.template_filename_length = strlen (DMIData.template_filename)
* sizeof ( char );
/* since ascii is being used */
productInfo.pDMIData = &DMIData;
/********************************************************************/
/* Note: This shows the usage of message insert text and is NOT a */
/* of the information that could or could not be retrieved from DMI */
/********************************************************************/
msgInsData.MsgInsTxt[0].insert_number = 1;
msgInsData.MsgInsTxt[0].insert_text = "We did not use a DMI component";
}
/***********************************************************************/
/* set the pointers up for PRODUCTINFO */
/***********************************************************************/
productInfo.pProductData = &productData; /* This points to the DMI
related data */
/***********************************************************************/
/* set up some DUMPUSERDATA items */
/***********************************************************************/
pvar_n0 = "Dump user data"; /* Anything can be dumped
here up to 32 Kbytes */
pvar_n1 = 2;
dumpUserData.no_of_variables = 2;
dumpUserData.DumpDataVar[0].var_n_length = strlen(pvar_n0) + 1;
dumpUserData.DumpDataVar[0].var_n = pvar_n0;
dumpUserData.DumpDataVar[1].var_n_length = sizeof(ULONG);
dumpUserData.DumpDataVar[1].var_n = (PVOID)(&pvar_n1);
/***********************************************************************/
/* set up a couple of MSGINSDATA messages- just to show it can be done */
/***********************************************************************/
msgInsData.no_inserts = 2;
msgInsData.MsgInsTxt[1].insert_number = 2;
msgInsData.MsgInsTxt[1].insert_text = "Message insert variable 2";
/***********************************************************************/
/* set the FFSTPARMS structure, most values from DEFINEs above. */
/* See API GUIDE for details on each field and their possible values */
/***********************************************************************/
FFSTParms.packet_size = sizeof ( FFSTParms );
FFSTParms.packet_revision_number = FFSTPARMS_OS2_ASCII;
/* ASCII vs UNICODE data */
FFSTParms.module_name = input_module_name;
FFSTParms.probe_ID = input_probe_id;
FFSTParms.severity = input_severity;
FFSTParms.template_record_ID = input_probe_id;
FFSTParms.pMsgInsData = &msgInsData;
FFSTParms.probe_flags = input_probe_flags;
FFSTParms.pDumpUserData = &dumpUserData;
/* dump data is stored in .DMP files */
FFSTParms.log_user_data_length = input_log_data_length;
FFSTParms.log_user_data = input_pError_log_data;
/* log data is stored as part of the SYSLOG entry */
/***********************************************************************/
/* Call the FFSProbe API */
/***********************************************************************/
if ( input_version == 1)
{
rc = FFSTProbe ( &productInfo, &FFSTParms);
}
printf("\n----- Fired the FFSTProbe, rc=%d\n",rc);
/* for example only, do not do this in customer level code */
}
/**************************************************************************/
/* This is the dummy API for use in the example. It can easily set */
/* non-zero rc's */
/**************************************************************************/
ULONG My_Dummy_API ( ULONG Mydata )
{
if ( Mydata != 123456 )
{
return 1;
}
else
{
return 0;
}
}
/**************************************************************************/
/* Trace events function */
/**************************************************************************/
APIRET trace_out(ULONG major, ULONG minor, void *trace_data, ULONG data_len)
{
TCEREQUEST packet;
APIRET rc;
packet.packet_size = sizeof packet; /* Size of packet in bytes */
packet.packet_revision_number = TRACE_RELEASE; /* Revision level of trace */
packet.major_event_code = major; /* Major code event to be logged */
packet.minor_event_code = minor; /* Minor code event to be logged */
packet.event_data_length = data_len; /* Length of callers event buffer*/
packet.event_data = trace_data; /* Pointer to callers buffer */
/* call the TraceCreateEntry function */
rc = TraceCreateEntry(&packet);
return rc;
}