1 /* 2 * zcrypt 2.1.0 3 * 4 * Copyright IBM Corp. 2001, 2006 5 * Author(s): Robert Burroughs 6 * Eric Rossman (edrossma@us.ibm.com) 7 * 8 * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) 9 * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2, or (at your option) 14 * any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25 26 #ifndef _ZCRYPT_ERROR_H_ 27 #define _ZCRYPT_ERROR_H_ 28 29 #include "zcrypt_api.h" 30 31 /** 32 * Reply Messages 33 * 34 * Error reply messages are of two types: 35 * 82: Error (see below) 36 * 88: Error (see below) 37 * Both type 82 and type 88 have the same structure in the header. 38 * 39 * Request reply messages are of three known types: 40 * 80: Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS) 41 * 84: Reply from a Type 4 Request (see PCICA-RELATED STRUCTS) 42 * 86: Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS) 43 * 44 */ 45 struct error_hdr { 46 unsigned char reserved1; /* 0x00 */ 47 unsigned char type; /* 0x82 or 0x88 */ 48 unsigned char reserved2[2]; /* 0x0000 */ 49 unsigned char reply_code; /* reply code */ 50 unsigned char reserved3[3]; /* 0x000000 */ 51 }; 52 53 #define TYPE82_RSP_CODE 0x82 54 #define TYPE88_RSP_CODE 0x88 55 56 #define REP82_ERROR_MACHINE_FAILURE 0x10 57 #define REP82_ERROR_PREEMPT_FAILURE 0x12 58 #define REP82_ERROR_CHECKPT_FAILURE 0x14 59 #define REP82_ERROR_MESSAGE_TYPE 0x20 60 #define REP82_ERROR_INVALID_COMM_CD 0x21 /* Type 84 */ 61 #define REP82_ERROR_INVALID_MSG_LEN 0x23 62 #define REP82_ERROR_RESERVD_FIELD 0x24 /* was 0x50 */ 63 #define REP82_ERROR_FORMAT_FIELD 0x29 64 #define REP82_ERROR_INVALID_COMMAND 0x30 65 #define REP82_ERROR_MALFORMED_MSG 0x40 66 #define REP82_ERROR_RESERVED_FIELDO 0x50 /* old value */ 67 #define REP82_ERROR_WORD_ALIGNMENT 0x60 68 #define REP82_ERROR_MESSAGE_LENGTH 0x80 69 #define REP82_ERROR_OPERAND_INVALID 0x82 70 #define REP82_ERROR_OPERAND_SIZE 0x84 71 #define REP82_ERROR_EVEN_MOD_IN_OPND 0x85 72 #define REP82_ERROR_RESERVED_FIELD 0x88 73 #define REP82_ERROR_TRANSPORT_FAIL 0x90 74 #define REP82_ERROR_PACKET_TRUNCATED 0xA0 75 #define REP82_ERROR_ZERO_BUFFER_LEN 0xB0 76 77 #define REP88_ERROR_MODULE_FAILURE 0x10 78 79 #define REP88_ERROR_MESSAGE_TYPE 0x20 80 #define REP88_ERROR_MESSAGE_MALFORMD 0x22 81 #define REP88_ERROR_MESSAGE_LENGTH 0x23 82 #define REP88_ERROR_RESERVED_FIELD 0x24 83 #define REP88_ERROR_KEY_TYPE 0x34 84 #define REP88_ERROR_INVALID_KEY 0x82 /* CEX2A */ 85 #define REP88_ERROR_OPERAND 0x84 /* CEX2A */ 86 #define REP88_ERROR_OPERAND_EVEN_MOD 0x85 /* CEX2A */ 87 88 static inline int convert_error(struct zcrypt_device *zdev, 89 struct ap_message *reply) 90 { 91 struct error_hdr *ehdr = reply->message; 92 93 switch (ehdr->reply_code) { 94 case REP82_ERROR_OPERAND_INVALID: 95 case REP82_ERROR_OPERAND_SIZE: 96 case REP82_ERROR_EVEN_MOD_IN_OPND: 97 case REP88_ERROR_MESSAGE_MALFORMD: 98 // REP88_ERROR_INVALID_KEY // '82' CEX2A 99 // REP88_ERROR_OPERAND // '84' CEX2A 100 // REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A 101 /* Invalid input data. */ 102 return -EINVAL; 103 case REP82_ERROR_MESSAGE_TYPE: 104 // REP88_ERROR_MESSAGE_TYPE // '20' CEX2A 105 /* 106 * To sent a message of the wrong type is a bug in the 107 * device driver. Warn about it, disable the device 108 * and then repeat the request. 109 */ 110 WARN_ON(1); 111 zdev->online = 0; 112 return -EAGAIN; 113 case REP82_ERROR_TRANSPORT_FAIL: 114 case REP82_ERROR_MACHINE_FAILURE: 115 // REP88_ERROR_MODULE_FAILURE // '10' CEX2A 116 /* If a card fails disable it and repeat the request. */ 117 zdev->online = 0; 118 return -EAGAIN; 119 default: 120 zdev->online = 0; 121 return -EAGAIN; /* repeat the request on a different device. */ 122 } 123 } 124 125 #endif /* _ZCRYPT_ERROR_H_ */ 126