1 /** 2 * Describes functions for parsing JSON IR CPER data into binary CPER format. 3 * 4 * Author: Lawrence.Tang@arm.com 5 **/ 6 7 #include <stdio.h> 8 #include "json.h" 9 #include "edk/Cper.h" 10 #include "cper-parse.h" 11 #include "cper-utils.h" 12 13 //Private pre-declarations. 14 void ir_header_to_cper(json_object* header_ir, EFI_COMMON_ERROR_RECORD_HEADER* header); 15 16 //Converts the given JSON IR CPER representation into CPER binary format, piped to the provided file stream. 17 //This function performs no validation of the IR against the CPER-JSON specification. For this, call 18 //validate_schema() from json-schema.h before attempting to call this function. 19 void ir_to_cper(json_object* ir, FILE* out) 20 { 21 //Create the CPER header. 22 EFI_COMMON_ERROR_RECORD_HEADER* header = (EFI_COMMON_ERROR_RECORD_HEADER*)calloc(1, sizeof(EFI_COMMON_ERROR_RECORD_HEADER)); 23 ir_header_to_cper(json_object_object_get(ir, "header"), header); 24 fwrite(header, sizeof(EFI_COMMON_ERROR_RECORD_HEADER), 1, out); 25 26 //... 27 28 //Free all resources. 29 fflush(out); 30 free(header); 31 } 32 33 //Converts a CPER-JSON IR header to a CPER header structure. 34 void ir_header_to_cper(json_object* header_ir, EFI_COMMON_ERROR_RECORD_HEADER* header) 35 { 36 header->SignatureStart = 0x52455043; //CPER 37 printf("beginning write.\n"); 38 39 //Revision. 40 json_object* revision = json_object_object_get(header_ir, "revision"); 41 int minor = json_object_get_int(json_object_object_get(revision, "minor")); 42 int major = json_object_get_int(json_object_object_get(revision, "major")); 43 header->Revision = minor + (major << 8); 44 45 header->SignatureEnd = 0xFFFFFFFF; 46 47 //Section count. 48 int section_count = json_object_get_int(json_object_object_get(header_ir, "sectionCount")); 49 header->SectionCount = (UINT16)section_count; 50 51 //Error severity. 52 json_object* severity = json_object_object_get(header_ir, "severity"); 53 header->ErrorSeverity = (UINT32)json_object_get_uint64(json_object_object_get(severity, "code")); 54 55 //Validation bits. 56 header->ValidationBits = ir_to_bitfield(json_object_object_get(header_ir, "validationBits"), 57 3, CPER_HEADER_VALID_BITFIELD_NAMES); 58 59 //Record length. 60 header->RecordLength = (UINT32)json_object_get_uint64(json_object_object_get(header_ir, "recordLength")); 61 62 //Timestamp, if present. 63 printf("timestamp write.\n"); 64 json_object* timestamp = json_object_object_get(header_ir, "timestamp"); 65 if (timestamp != NULL) 66 { 67 string_to_timestamp(&header->TimeStamp, json_object_get_string(timestamp)); 68 header->TimeStamp.Flag = json_object_get_boolean(json_object_object_get(header_ir, "timestampIsPrecise")); 69 } 70 71 //Various GUIDs. 72 printf("guid write.\n"); 73 json_object* platform_id = json_object_object_get(header_ir, "platformID"); 74 json_object* partition_id = json_object_object_get(header_ir, "partitionID"); 75 if (platform_id != NULL) 76 string_to_guid(&header->PlatformID, json_object_get_string(platform_id)); 77 if (partition_id != NULL) 78 string_to_guid(&header->PartitionID, json_object_get_string(partition_id)); 79 string_to_guid(&header->CreatorID, json_object_get_string(json_object_object_get(header_ir, "creatorID"))); 80 81 //Notification type. 82 printf("notif type write.\n"); 83 json_object* notification_type = json_object_object_get(header_ir, "notificationType"); 84 string_to_guid(&header->NotificationType, json_object_get_string(json_object_object_get(notification_type, "guid"))); 85 86 //Record ID, persistence info. 87 header->RecordID = json_object_get_uint64(json_object_object_get(header_ir, "recordID")); 88 header->PersistenceInfo = json_object_get_uint64(json_object_object_get(header_ir, "persistenceInfo")); 89 90 //Flags. 91 printf("flag write.\n"); 92 json_object* flags = json_object_object_get(header_ir, "flags"); 93 header->Flags = (UINT32)json_object_get_uint64(json_object_object_get(flags, "value")); 94 }