generator/cper-generate.c - openbmc/libcper - Gitiles

 /**
  * Describes functions for generating psuedo-random specification compliant CPER records.
  *
  * Author: Lawrence.Tang@arm.com
  **/

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include "../edk/Cper.h"
 #include "gen-utils.h"
 #include "sections/gen-sections.h"
 #include "cper-generate.h"

 EFI_ERROR_SECTION_DESCRIPTOR* generate_section_descriptor(char* type, size_t* lengths, int index, int num_sections);
 size_t generate_section(void** location, char* type);

 //Generates a CPER record with the given section types, outputting to the given stream.
 void generate_cper_record(char** types, UINT16 num_sections, FILE* out)
 {
     //Initialise randomiser.
     init_random();

     //Generate the sections.
     void* sections[num_sections];
     size_t section_lengths[num_sections];
     for (int i=0; i<num_sections; i++)
     {
         section_lengths[i] = generate_section(sections + i, types[i]);
         if (section_lengths[i] == 0)
         {
             //Error encountered, exit.
             printf("Error encountered generating section %d of type '%s', length returned zero.\n", i+1, types[i]);
             return;
         }
     }

     //Generate the header given the number of sections.
     EFI_COMMON_ERROR_RECORD_HEADER* header =
         (EFI_COMMON_ERROR_RECORD_HEADER*)calloc(1, sizeof(EFI_COMMON_ERROR_RECORD_HEADER));
     header->SignatureStart = 0x52455043; //CPER
     header->SectionCount = num_sections;
     header->SignatureEnd = 0xFFFFFFFF;
     header->Flags = 4; //HW_ERROR_FLAGS_SIMULATED
     header->RecordID = (UINT64)rand();
     header->ErrorSeverity = rand() % 4;

     //Generate a valid timestamp.
     header->TimeStamp.Century = int_to_bcd(rand() % 100);
     header->TimeStamp.Year = int_to_bcd(rand() % 100);
     header->TimeStamp.Month = int_to_bcd(rand() % 12 + 1);
     header->TimeStamp.Day = int_to_bcd(rand() % 31 + 1);
     header->TimeStamp.Hours = int_to_bcd(rand() % 24 + 1);
     header->TimeStamp.Seconds = int_to_bcd(rand() % 60);

     //Turn all validation bits on.
     header->ValidationBits = 0b11;

     //Generate the section descriptors given the number of sections.
     EFI_ERROR_SECTION_DESCRIPTOR* section_descriptors[num_sections];
     for (int i=0; i<num_sections; i++)
         section_descriptors[i] = generate_section_descriptor(types[i], section_lengths, i, num_sections);

     //Calculate total length of structure, set in header.
     size_t total_len = sizeof(EFI_COMMON_ERROR_RECORD_HEADER);
     for (int i=0; i<num_sections; i++)
         total_len += section_lengths[i];
     total_len += num_sections * sizeof(EFI_ERROR_SECTION_DESCRIPTOR);
     header->RecordLength = (UINT32)total_len;

     //Write to stream in order, free all resources.
     fwrite(header, sizeof(EFI_COMMON_ERROR_RECORD_HEADER), 1, out);
     fflush(out);
     free(header);
     for (int i=0; i<num_sections; i++)
     {
         fwrite(section_descriptors[i], sizeof(EFI_ERROR_SECTION_DESCRIPTOR), 1, out);
         fflush(out);
         free(section_descriptors[i]);
     }
     for (int i=0; i<num_sections; i++)
     {
         fwrite(sections[i], section_lengths[i], 1, out);
         fflush(out);
         free(sections[i]);
     }
 }

 //Generates a single section descriptor for a section with the given properties.
 EFI_ERROR_SECTION_DESCRIPTOR* generate_section_descriptor(char* type, size_t* lengths, int index, int num_sections)
 {
     EFI_ERROR_SECTION_DESCRIPTOR* descriptor =
         (EFI_ERROR_SECTION_DESCRIPTOR*)generate_random_bytes(sizeof(EFI_ERROR_SECTION_DESCRIPTOR));

     //Set reserved bits to zero.
     descriptor->Resv1 = 0;
     descriptor->SectionFlags &= 0xFF;

     //Validation bits all set to 'on'.
     descriptor->SecValidMask = 0b11;

     //Set severity.
     descriptor->Severity = rand() % 4;

     //Set length, offset from base record.
     descriptor->SectionLength = (UINT32)lengths[index];
     descriptor->SectionOffset = sizeof(EFI_COMMON_ERROR_RECORD_HEADER)
         + (num_sections * sizeof(EFI_ERROR_SECTION_DESCRIPTOR));
     for (int i=0; i<index; i++)
         descriptor->SectionOffset += lengths[i];

     //Ensure the FRU text is not null terminated early.
     for (int i=0; i<20; i++)
     {
         if (descriptor->FruString[i] == 0x0)
             descriptor->FruString[i] = rand() % 127 + 1;

         //Null terminate last byte.
         if (i == 19)
             descriptor->FruString[i] = 0x0;
     }

     //Set section type GUID based on type name.
     if (strcmp(type, "generic") == 0)
         memcpy(&descriptor->SectionType, &gEfiProcessorGenericErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "ia32x64") == 0)
         memcpy(&descriptor->SectionType, &gEfiIa32X64ProcessorErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "ipf") == 0)
         memcpy(&descriptor->SectionType, &gEfiIpfProcessorErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "arm") == 0)
         memcpy(&descriptor->SectionType, &gEfiArmProcessorErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "memory") == 0)
         memcpy(&descriptor->SectionType, &gEfiPlatformMemoryErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "memory2") == 0)
         memcpy(&descriptor->SectionType, &gEfiPlatformMemoryError2SectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "pcie") == 0)
         memcpy(&descriptor->SectionType, &gEfiPcieErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "firmware") == 0)
         memcpy(&descriptor->SectionType, &gEfiFirmwareErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "pcibus") == 0)
         memcpy(&descriptor->SectionType, &gEfiPciBusErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "pcidev") == 0)
         memcpy(&descriptor->SectionType, &gEfiPciDevErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "dmargeneric") == 0)
         memcpy(&descriptor->SectionType, &gEfiDMArGenericErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "dmarvtd") == 0)
         memcpy(&descriptor->SectionType, &gEfiDirectedIoDMArErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "dmariommu") == 0)
         memcpy(&descriptor->SectionType, &gEfiIommuDMArErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "ccixper") == 0)
         memcpy(&descriptor->SectionType, &gEfiCcixPerLogErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "cxlprotocol") == 0)
         memcpy(&descriptor->SectionType, &gEfiCxlProtocolErrorSectionGuid, sizeof(EFI_GUID));
     else if (strcmp(type, "cxlcomponent") == 0)
     {
         //Choose between the different CXL component type GUIDs.
         int componentType = rand() % 5;
         switch (componentType)
         {
             case 0:
                 memcpy(&descriptor->SectionType, &gEfiCxlGeneralMediaErrorSectionGuid, sizeof(EFI_GUID));
                 break;
             case 1:
                 memcpy(&descriptor->SectionType, &gEfiCxlDramEventErrorSectionGuid, sizeof(EFI_GUID));
                 break;
             case 2:
                 memcpy(&descriptor->SectionType, &gEfiCxlPhysicalSwitchErrorSectionGuid, sizeof(EFI_GUID));
                 break;
             case 3:
                 memcpy(&descriptor->SectionType, &gEfiCxlVirtualSwitchErrorSectionGuid, sizeof(EFI_GUID));
                 break;
             default:
                 memcpy(&descriptor->SectionType, &gEfiCxlMldPortErrorSectionGuid, sizeof(EFI_GUID));
                 break;
         }
     }
     else if (strcmp(type, "unknown") != 0)
     {
         //Undefined section, show error.
         printf("Undefined section type '%s' provided. See 'cper-generate --help' for command information.\n", type);
         return 0;
     }

     return descriptor;
 }

 //Generates a single CPER section given the string type.
 size_t generate_section(void** location, char* type)
 {
     //The length of the section.
     size_t length = 0;

     //Switch on the type, generate accordingly.
     if (strcmp(type, "generic") == 0)
         length = generate_section_generic(location);
     else if (strcmp(type, "ia32x64") == 0)
         length = generate_section_ia32x64(location);
     // else if (strcmp(type, "ipf") == 0)
     //     length = generate_section_ipf(location);
     else if (strcmp(type, "arm") == 0)
         length = generate_section_arm(location);
     else if (strcmp(type, "memory") == 0)
         length = generate_section_memory(location);
     else if (strcmp(type, "memory2") == 0)
         length = generate_section_memory2(location);
     else if (strcmp(type, "pcie") == 0)
         length = generate_section_pcie(location);
     else if (strcmp(type, "firmware") == 0)
         length = generate_section_firmware(location);
     else if (strcmp(type, "pcibus") == 0)
         length = generate_section_pci_bus(location);
     else if (strcmp(type, "pcidev") == 0)
         length = generate_section_pci_dev(location);
     else if (strcmp(type, "dmargeneric") == 0)
         length = generate_section_dmar_generic(location);
     else if (strcmp(type, "dmarvtd") == 0)
         length = generate_section_dmar_vtd(location);
     else if (strcmp(type, "dmariommu") == 0)
         length = generate_section_dmar_iommu(location);
     else if (strcmp(type, "ccixper") == 0)
         length = generate_section_ccix_per(location);
     else if (strcmp(type, "cxlprotocol") == 0)
         length = generate_section_cxl_protocol(location);
     else if (strcmp(type, "cxlcomponent") == 0)
         length = generate_section_cxl_component(location);
     else if (strcmp(type, "unknown") == 0)
         length = generate_random_section(location, rand() % 256);
     else
     {
         //Undefined section, show error.
         printf("Undefined section type '%s' given to generate. See 'cper-generate --help' for command information.\n", type);
         return 0;
     }

     return length;
 }
	/**
	* Describes functions for generating psuedo-random specification compliant CPER records.
	*
	* Author: Lawrence.Tang@arm.com
	**/

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include "../edk/Cper.h"
	#include "gen-utils.h"
	#include "sections/gen-sections.h"
	#include "cper-generate.h"

	EFI_ERROR_SECTION_DESCRIPTOR* generate_section_descriptor(char* type, size_t* lengths, int index, int num_sections);
	size_t generate_section(void** location, char* type);

	//Generates a CPER record with the given section types, outputting to the given stream.
	void generate_cper_record(char** types, UINT16 num_sections, FILE* out)
	{
	//Initialise randomiser.
	init_random();

	//Generate the sections.
	void* sections[num_sections];
	size_t section_lengths[num_sections];
	for (int i=0; i<num_sections; i++)
	{
	section_lengths[i] = generate_section(sections + i, types[i]);
	if (section_lengths[i] == 0)
	{
	//Error encountered, exit.
	printf("Error encountered generating section %d of type '%s', length returned zero.\n", i+1, types[i]);
	return;
	}
	}

	//Generate the header given the number of sections.
	EFI_COMMON_ERROR_RECORD_HEADER* header =
	(EFI_COMMON_ERROR_RECORD_HEADER*)calloc(1, sizeof(EFI_COMMON_ERROR_RECORD_HEADER));
	header->SignatureStart = 0x52455043; //CPER
	header->SectionCount = num_sections;
	header->SignatureEnd = 0xFFFFFFFF;
	header->Flags = 4; //HW_ERROR_FLAGS_SIMULATED
	header->RecordID = (UINT64)rand();
	header->ErrorSeverity = rand() % 4;

	//Generate a valid timestamp.
	header->TimeStamp.Century = int_to_bcd(rand() % 100);
	header->TimeStamp.Year = int_to_bcd(rand() % 100);
	header->TimeStamp.Month = int_to_bcd(rand() % 12 + 1);
	header->TimeStamp.Day = int_to_bcd(rand() % 31 + 1);
	header->TimeStamp.Hours = int_to_bcd(rand() % 24 + 1);
	header->TimeStamp.Seconds = int_to_bcd(rand() % 60);

	//Turn all validation bits on.
	header->ValidationBits = 0b11;

	//Generate the section descriptors given the number of sections.
	EFI_ERROR_SECTION_DESCRIPTOR* section_descriptors[num_sections];
	for (int i=0; i<num_sections; i++)
	section_descriptors[i] = generate_section_descriptor(types[i], section_lengths, i, num_sections);

	//Calculate total length of structure, set in header.
	size_t total_len = sizeof(EFI_COMMON_ERROR_RECORD_HEADER);
	for (int i=0; i<num_sections; i++)
	total_len += section_lengths[i];
	total_len += num_sections * sizeof(EFI_ERROR_SECTION_DESCRIPTOR);
	header->RecordLength = (UINT32)total_len;

	//Write to stream in order, free all resources.
	fwrite(header, sizeof(EFI_COMMON_ERROR_RECORD_HEADER), 1, out);
	fflush(out);
	free(header);
	for (int i=0; i<num_sections; i++)
	{
	fwrite(section_descriptors[i], sizeof(EFI_ERROR_SECTION_DESCRIPTOR), 1, out);
	fflush(out);
	free(section_descriptors[i]);
	}
	for (int i=0; i<num_sections; i++)
	{
	fwrite(sections[i], section_lengths[i], 1, out);
	fflush(out);
	free(sections[i]);
	}
	}

	//Generates a single section descriptor for a section with the given properties.
	EFI_ERROR_SECTION_DESCRIPTOR* generate_section_descriptor(char* type, size_t* lengths, int index, int num_sections)
	{
	EFI_ERROR_SECTION_DESCRIPTOR* descriptor =
	(EFI_ERROR_SECTION_DESCRIPTOR*)generate_random_bytes(sizeof(EFI_ERROR_SECTION_DESCRIPTOR));

	//Set reserved bits to zero.
	descriptor->Resv1 = 0;
	descriptor->SectionFlags &= 0xFF;

	//Validation bits all set to 'on'.
	descriptor->SecValidMask = 0b11;

	//Set severity.
	descriptor->Severity = rand() % 4;

	//Set length, offset from base record.
	descriptor->SectionLength = (UINT32)lengths[index];
	descriptor->SectionOffset = sizeof(EFI_COMMON_ERROR_RECORD_HEADER)
	+ (num_sections * sizeof(EFI_ERROR_SECTION_DESCRIPTOR));
	for (int i=0; i<index; i++)
	descriptor->SectionOffset += lengths[i];

	//Ensure the FRU text is not null terminated early.
	for (int i=0; i<20; i++)
	{
	if (descriptor->FruString[i] == 0x0)
	descriptor->FruString[i] = rand() % 127 + 1;

	//Null terminate last byte.
	if (i == 19)
	descriptor->FruString[i] = 0x0;
	}

	//Set section type GUID based on type name.
	if (strcmp(type, "generic") == 0)
	memcpy(&descriptor->SectionType, &gEfiProcessorGenericErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "ia32x64") == 0)
	memcpy(&descriptor->SectionType, &gEfiIa32X64ProcessorErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "ipf") == 0)
	memcpy(&descriptor->SectionType, &gEfiIpfProcessorErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "arm") == 0)
	memcpy(&descriptor->SectionType, &gEfiArmProcessorErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "memory") == 0)
	memcpy(&descriptor->SectionType, &gEfiPlatformMemoryErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "memory2") == 0)
	memcpy(&descriptor->SectionType, &gEfiPlatformMemoryError2SectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "pcie") == 0)
	memcpy(&descriptor->SectionType, &gEfiPcieErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "firmware") == 0)
	memcpy(&descriptor->SectionType, &gEfiFirmwareErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "pcibus") == 0)
	memcpy(&descriptor->SectionType, &gEfiPciBusErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "pcidev") == 0)
	memcpy(&descriptor->SectionType, &gEfiPciDevErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "dmargeneric") == 0)
	memcpy(&descriptor->SectionType, &gEfiDMArGenericErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "dmarvtd") == 0)
	memcpy(&descriptor->SectionType, &gEfiDirectedIoDMArErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "dmariommu") == 0)
	memcpy(&descriptor->SectionType, &gEfiIommuDMArErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "ccixper") == 0)
	memcpy(&descriptor->SectionType, &gEfiCcixPerLogErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "cxlprotocol") == 0)
	memcpy(&descriptor->SectionType, &gEfiCxlProtocolErrorSectionGuid, sizeof(EFI_GUID));
	else if (strcmp(type, "cxlcomponent") == 0)
	{
	//Choose between the different CXL component type GUIDs.
	int componentType = rand() % 5;
	switch (componentType)
	{
	case 0:
	memcpy(&descriptor->SectionType, &gEfiCxlGeneralMediaErrorSectionGuid, sizeof(EFI_GUID));
	break;
	case 1:
	memcpy(&descriptor->SectionType, &gEfiCxlDramEventErrorSectionGuid, sizeof(EFI_GUID));
	break;
	case 2:
	memcpy(&descriptor->SectionType, &gEfiCxlPhysicalSwitchErrorSectionGuid, sizeof(EFI_GUID));
	break;
	case 3:
	memcpy(&descriptor->SectionType, &gEfiCxlVirtualSwitchErrorSectionGuid, sizeof(EFI_GUID));
	break;
	default:
	memcpy(&descriptor->SectionType, &gEfiCxlMldPortErrorSectionGuid, sizeof(EFI_GUID));
	break;
	}
	}
	else if (strcmp(type, "unknown") != 0)
	{
	//Undefined section, show error.
	printf("Undefined section type '%s' provided. See 'cper-generate --help' for command information.\n", type);
	return 0;
	}

	return descriptor;
	}

	//Generates a single CPER section given the string type.
	size_t generate_section(void** location, char* type)
	{
	//The length of the section.
	size_t length = 0;

	//Switch on the type, generate accordingly.
	if (strcmp(type, "generic") == 0)
	length = generate_section_generic(location);
	else if (strcmp(type, "ia32x64") == 0)
	length = generate_section_ia32x64(location);
	// else if (strcmp(type, "ipf") == 0)
	// length = generate_section_ipf(location);
	else if (strcmp(type, "arm") == 0)
	length = generate_section_arm(location);
	else if (strcmp(type, "memory") == 0)
	length = generate_section_memory(location);
	else if (strcmp(type, "memory2") == 0)
	length = generate_section_memory2(location);
	else if (strcmp(type, "pcie") == 0)
	length = generate_section_pcie(location);
	else if (strcmp(type, "firmware") == 0)
	length = generate_section_firmware(location);
	else if (strcmp(type, "pcibus") == 0)
	length = generate_section_pci_bus(location);
	else if (strcmp(type, "pcidev") == 0)
	length = generate_section_pci_dev(location);
	else if (strcmp(type, "dmargeneric") == 0)
	length = generate_section_dmar_generic(location);
	else if (strcmp(type, "dmarvtd") == 0)
	length = generate_section_dmar_vtd(location);
	else if (strcmp(type, "dmariommu") == 0)
	length = generate_section_dmar_iommu(location);
	else if (strcmp(type, "ccixper") == 0)
	length = generate_section_ccix_per(location);
	else if (strcmp(type, "cxlprotocol") == 0)
	length = generate_section_cxl_protocol(location);
	else if (strcmp(type, "cxlcomponent") == 0)
	length = generate_section_cxl_component(location);
	else if (strcmp(type, "unknown") == 0)
	length = generate_random_section(location, rand() % 256);
	else
	{
	//Undefined section, show error.
	printf("Undefined section type '%s' given to generate. See 'cper-generate --help' for command information.\n", type);
	return 0;
	}

	return length;
	}