Commit | Line | Data |
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963ed931 | 1 | /* |
5432114b | 2 | * zcrypt 2.1.0 |
963ed931 | 3 | * |
a53c8fab | 4 | * Copyright IBM Corp. 2001, 2006 |
963ed931 MS |
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 | ||
963ed931 MS |
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 | |
1749a81d | 105 | /* |
963ed931 MS |
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: | |
963ed931 MS |
120 | zdev->online = 0; |
121 | return -EAGAIN; /* repeat the request on a different device. */ | |
122 | } | |
123 | } | |
124 | ||
125 | #endif /* _ZCRYPT_ERROR_H_ */ |