xref: /openbmc/libcper/sections/cper-section-firmware.c (revision e42fb487839b242371b0150ab5b0b89c2d232976)
1  /**
2   * Describes functions for converting firmware CPER sections from binary and JSON format
3   * into an intermediate format.
4   *
5   * Author: Lawrence.Tang@arm.com
6   **/
7  #include <stdio.h>
8  #include <json.h>
9  #include <libcper/Cper.h>
10  #include <libcper/cper-utils.h>
11  #include <libcper/sections/cper-section-firmware.h>
12  
13  //Converts a single firmware CPER section into JSON IR.
cper_section_firmware_to_ir(void * section)14  json_object *cper_section_firmware_to_ir(void *section)
15  {
16  	EFI_FIRMWARE_ERROR_DATA *firmware_error =
17  		(EFI_FIRMWARE_ERROR_DATA *)section;
18  	json_object *section_ir = json_object_new_object();
19  
20  	//Record type.
21  	json_object *record_type = integer_to_readable_pair(
22  		firmware_error->ErrorType, 3, FIRMWARE_ERROR_RECORD_TYPES_KEYS,
23  		FIRMWARE_ERROR_RECORD_TYPES_VALUES, "Unknown (Reserved)");
24  	json_object_object_add(section_ir, "errorRecordType", record_type);
25  
26  	//Revision, record identifier.
27  	json_object_object_add(section_ir, "revision",
28  			       json_object_new_int(firmware_error->Revision));
29  	json_object_object_add(
30  		section_ir, "recordID",
31  		json_object_new_uint64(firmware_error->RecordId));
32  
33  	//Record GUID.
34  	char record_id_guid[GUID_STRING_LENGTH];
35  	guid_to_string(record_id_guid, &firmware_error->RecordIdGuid);
36  	json_object_object_add(section_ir, "recordIDGUID",
37  			       json_object_new_string(record_id_guid));
38  
39  	return section_ir;
40  }
41  
42  //Converts a single firmware CPER-JSON section into CPER binary, outputting to the given stream.
ir_section_firmware_to_cper(json_object * section,FILE * out)43  void ir_section_firmware_to_cper(json_object *section, FILE *out)
44  {
45  	EFI_FIRMWARE_ERROR_DATA *section_cper =
46  		(EFI_FIRMWARE_ERROR_DATA *)calloc(
47  			1, sizeof(EFI_FIRMWARE_ERROR_DATA));
48  
49  	//Record fields.
50  	section_cper->ErrorType = readable_pair_to_integer(
51  		json_object_object_get(section, "errorRecordType"));
52  	section_cper->Revision = json_object_get_int(
53  		json_object_object_get(section, "revision"));
54  	section_cper->RecordId = json_object_get_uint64(
55  		json_object_object_get(section, "recordID"));
56  	string_to_guid(&section_cper->RecordIdGuid,
57  		       json_object_get_string(json_object_object_get(
58  			       section, "recordIDGUID")));
59  
60  	//Write to stream, free resources.
61  	fwrite(section_cper, sizeof(EFI_FIRMWARE_ERROR_DATA), 1, out);
62  	fflush(out);
63  	free(section_cper);
64  }
65