summaryrefslogtreecommitdiffstats
path: root/drivers/s390/crypto/zcrypt_pcicc.h
blob: 7fe27e15075b851d01876e88e382902964498e3c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*
 *  zcrypt 2.1.0
 *
 *  Copyright IBM Corp. 2001, 2006
 *  Author(s): Robert Burroughs
 *	       Eric Rossman (edrossma@us.ibm.com)
 *
 *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
 *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _ZCRYPT_PCICC_H_
#define _ZCRYPT_PCICC_H_

/**
 * The type 6 message family is associated with PCICC or PCIXCC cards.
 *
 * It contains a message header followed by a CPRB, both of which
 * are described below.
 *
 * Note that all reserved fields must be zeroes.
 */
struct type6_hdr {
	unsigned char reserved1;	/* 0x00				*/
	unsigned char type;		/* 0x06				*/
	unsigned char reserved2[2];	/* 0x0000			*/
	unsigned char right[4];		/* 0x00000000			*/
	unsigned char reserved3[2];	/* 0x0000			*/
	unsigned char reserved4[2];	/* 0x0000			*/
	unsigned char apfs[4];		/* 0x00000000			*/
	unsigned int  offset1;		/* 0x00000058 (offset to CPRB)	*/
	unsigned int  offset2;		/* 0x00000000			*/
	unsigned int  offset3;		/* 0x00000000			*/
	unsigned int  offset4;		/* 0x00000000			*/
	unsigned char agent_id[16];	/* PCICC:			*/
					/*    0x0100			*/
					/*    0x4343412d4150504c202020	*/
					/*    0x010101			*/
					/* PCIXCC:			*/
					/*    0x4341000000000000	*/
					/*    0x0000000000000000	*/
	unsigned char rqid[2];		/* rqid.  internal to 603	*/
	unsigned char reserved5[2];	/* 0x0000			*/
	unsigned char function_code[2];	/* for PKD, 0x5044 (ascii 'PD')	*/
	unsigned char reserved6[2];	/* 0x0000			*/
	unsigned int  ToCardLen1;	/* (request CPRB len + 3) & -4	*/
	unsigned int  ToCardLen2;	/* db len 0x00000000 for PKD	*/
	unsigned int  ToCardLen3;	/* 0x00000000			*/
	unsigned int  ToCardLen4;	/* 0x00000000			*/
	unsigned int  FromCardLen1;	/* response buffer length	*/
	unsigned int  FromCardLen2;	/* db len 0x00000000 for PKD	*/
	unsigned int  FromCardLen3;	/* 0x00000000			*/
	unsigned int  FromCardLen4;	/* 0x00000000			*/
} __attribute__((packed));

/**
 * CPRB
 *	  Note that all shorts, ints and longs are little-endian.
 *	  All pointer fields are 32-bits long, and mean nothing
 *
 *	  A request CPRB is followed by a request_parameter_block.
 *
 *	  The request (or reply) parameter block is organized thus:
 *	    function code
 *	    VUD block
 *	    key block
 */
struct CPRB {
	unsigned short cprb_len;	/* CPRB length			 */
	unsigned char cprb_ver_id;	/* CPRB version id.		 */
	unsigned char pad_000;		/* Alignment pad byte.		 */
	unsigned char srpi_rtcode[4];	/* SRPI return code LELONG	 */
	unsigned char srpi_verb;	/* SRPI verb type		 */
	unsigned char flags;		/* flags			 */
	unsigned char func_id[2];	/* function id			 */
	unsigned char checkpoint_flag;	/*				 */
	unsigned char resv2;		/* reserved			 */
	unsigned short req_parml;	/* request parameter buffer	 */
					/* length 16-bit little endian	 */
	unsigned char req_parmp[4];	/* request parameter buffer	 *
					 * pointer (means nothing: the	 *
					 * parameter buffer follows	 *
					 * the CPRB).			 */
	unsigned char req_datal[4];	/* request data buffer		 */
					/* length	  ULELONG	 */
	unsigned char req_datap[4];	/* request data buffer		 */
					/* pointer			 */
	unsigned short rpl_parml;	/* reply  parameter buffer	 */
					/* length 16-bit little endian	 */
	unsigned char pad_001[2];	/* Alignment pad bytes. ULESHORT */
	unsigned char rpl_parmp[4];	/* reply parameter buffer	 *
					 * pointer (means nothing: the	 *
					 * parameter buffer follows	 *
					 * the CPRB).			 */
	unsigned char rpl_datal[4];	/* reply data buffer len ULELONG */
	unsigned char rpl_datap[4];	/* reply data buffer		 */
					/* pointer			 */
	unsigned short ccp_rscode;	/* server reason code	ULESHORT */
	unsigned short ccp_rtcode;	/* server return code	ULESHORT */
	unsigned char repd_parml[2];	/* replied parameter len ULESHORT*/
	unsigned char mac_data_len[2];	/* Mac Data Length	ULESHORT */
	unsigned char repd_datal[4];	/* replied data length	ULELONG	 */
	unsigned char req_pc[2];	/* PC identifier		 */
	unsigned char res_origin[8];	/* resource origin		 */
	unsigned char mac_value[8];	/* Mac Value			 */
	unsigned char logon_id[8];	/* Logon Identifier		 */
	unsigned char usage_domain[2];	/* cdx				 */
	unsigned char resv3[18];	/* reserved for requestor	 */
	unsigned short svr_namel;	/* server name length  ULESHORT	 */
	unsigned char svr_name[8];	/* server name			 */
} __attribute__((packed));

/**
 * The type 86 message family is associated with PCICC and PCIXCC cards.
 *
 * It contains a message header followed by a CPRB.  The CPRB is
 * the same as the request CPRB, which is described above.
 *
 * If format is 1, an error condition exists and no data beyond
 * the 8-byte message header is of interest.
 *
 * The non-error message is shown below.
 *
 * Note that all reserved fields must be zeroes.
 */
struct type86_hdr {
	unsigned char reserved1;	/* 0x00				*/
	unsigned char type;		/* 0x86				*/
	unsigned char format;		/* 0x01 (error) or 0x02 (ok)	*/
	unsigned char reserved2;	/* 0x00				*/
	unsigned char reply_code;	/* reply code (see above)	*/
	unsigned char reserved3[3];	/* 0x000000			*/
} __attribute__((packed));

#define TYPE86_RSP_CODE 0x86
#define TYPE86_FMT2	0x02

struct type86_fmt2_ext {
	unsigned char	  reserved[4];	/* 0x00000000			*/
	unsigned char	  apfs[4];	/* final status			*/
	unsigned int	  count1;	/* length of CPRB + parameters	*/
	unsigned int	  offset1;	/* offset to CPRB		*/
	unsigned int	  count2;	/* 0x00000000			*/
	unsigned int	  offset2;	/* db offset 0x00000000 for PKD	*/
	unsigned int	  count3;	/* 0x00000000			*/
	unsigned int	  offset3;	/* 0x00000000			*/
	unsigned int	  count4;	/* 0x00000000			*/
	unsigned int	  offset4;	/* 0x00000000			*/
} __attribute__((packed));

struct function_and_rules_block {
	unsigned char function_code[2];
	unsigned short ulen;
	unsigned char only_rule[8];
} __attribute__((packed));

int zcrypt_pcicc_init(void);
void zcrypt_pcicc_exit(void);

#endif /* _ZCRYPT_PCICC_H_ */