[S390] zcrypt: initialize ap_messages for cex3 exploitation
[linux-3.10.git] / drivers / s390 / crypto / zcrypt_pcicc.h
1 /*
2  *  linux/drivers/s390/crypto/zcrypt_pcicc.h
3  *
4  *  zcrypt 2.1.0
5  *
6  *  Copyright (C)  2001, 2006 IBM Corporation
7  *  Author(s): Robert Burroughs
8  *             Eric Rossman (edrossma@us.ibm.com)
9  *
10  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
11  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License as published by
15  * the Free Software Foundation; either version 2, or (at your option)
16  * any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software
25  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26  */
27
28 #ifndef _ZCRYPT_PCICC_H_
29 #define _ZCRYPT_PCICC_H_
30
31 /**
32  * The type 6 message family is associated with PCICC or PCIXCC cards.
33  *
34  * It contains a message header followed by a CPRB, both of which
35  * are described below.
36  *
37  * Note that all reserved fields must be zeroes.
38  */
39 struct type6_hdr {
40         unsigned char reserved1;        /* 0x00                         */
41         unsigned char type;             /* 0x06                         */
42         unsigned char reserved2[2];     /* 0x0000                       */
43         unsigned char right[4];         /* 0x00000000                   */
44         unsigned char reserved3[2];     /* 0x0000                       */
45         unsigned char reserved4[2];     /* 0x0000                       */
46         unsigned char apfs[4];          /* 0x00000000                   */
47         unsigned int  offset1;          /* 0x00000058 (offset to CPRB)  */
48         unsigned int  offset2;          /* 0x00000000                   */
49         unsigned int  offset3;          /* 0x00000000                   */
50         unsigned int  offset4;          /* 0x00000000                   */
51         unsigned char agent_id[16];     /* PCICC:                       */
52                                         /*    0x0100                    */
53                                         /*    0x4343412d4150504c202020  */
54                                         /*    0x010101                  */
55                                         /* PCIXCC:                      */
56                                         /*    0x4341000000000000        */
57                                         /*    0x0000000000000000        */
58         unsigned char rqid[2];          /* rqid.  internal to 603       */
59         unsigned char reserved5[2];     /* 0x0000                       */
60         unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */
61         unsigned char reserved6[2];     /* 0x0000                       */
62         unsigned int  ToCardLen1;       /* (request CPRB len + 3) & -4  */
63         unsigned int  ToCardLen2;       /* db len 0x00000000 for PKD    */
64         unsigned int  ToCardLen3;       /* 0x00000000                   */
65         unsigned int  ToCardLen4;       /* 0x00000000                   */
66         unsigned int  FromCardLen1;     /* response buffer length       */
67         unsigned int  FromCardLen2;     /* db len 0x00000000 for PKD    */
68         unsigned int  FromCardLen3;     /* 0x00000000                   */
69         unsigned int  FromCardLen4;     /* 0x00000000                   */
70 } __attribute__((packed));
71
72 /**
73  * CPRB
74  *        Note that all shorts, ints and longs are little-endian.
75  *        All pointer fields are 32-bits long, and mean nothing
76  *
77  *        A request CPRB is followed by a request_parameter_block.
78  *
79  *        The request (or reply) parameter block is organized thus:
80  *          function code
81  *          VUD block
82  *          key block
83  */
84 struct CPRB {
85         unsigned short cprb_len;        /* CPRB length                   */
86         unsigned char cprb_ver_id;      /* CPRB version id.              */
87         unsigned char pad_000;          /* Alignment pad byte.           */
88         unsigned char srpi_rtcode[4];   /* SRPI return code LELONG       */
89         unsigned char srpi_verb;        /* SRPI verb type                */
90         unsigned char flags;            /* flags                         */
91         unsigned char func_id[2];       /* function id                   */
92         unsigned char checkpoint_flag;  /*                               */
93         unsigned char resv2;            /* reserved                      */
94         unsigned short req_parml;       /* request parameter buffer      */
95                                         /* length 16-bit little endian   */
96         unsigned char req_parmp[4];     /* request parameter buffer      *
97                                          * pointer (means nothing: the   *
98                                          * parameter buffer follows      *
99                                          * the CPRB).                    */
100         unsigned char req_datal[4];     /* request data buffer           */
101                                         /* length         ULELONG        */
102         unsigned char req_datap[4];     /* request data buffer           */
103                                         /* pointer                       */
104         unsigned short rpl_parml;       /* reply  parameter buffer       */
105                                         /* length 16-bit little endian   */
106         unsigned char pad_001[2];       /* Alignment pad bytes. ULESHORT */
107         unsigned char rpl_parmp[4];     /* reply parameter buffer        *
108                                          * pointer (means nothing: the   *
109                                          * parameter buffer follows      *
110                                          * the CPRB).                    */
111         unsigned char rpl_datal[4];     /* reply data buffer len ULELONG */
112         unsigned char rpl_datap[4];     /* reply data buffer             */
113                                         /* pointer                       */
114         unsigned short ccp_rscode;      /* server reason code   ULESHORT */
115         unsigned short ccp_rtcode;      /* server return code   ULESHORT */
116         unsigned char repd_parml[2];    /* replied parameter len ULESHORT*/
117         unsigned char mac_data_len[2];  /* Mac Data Length      ULESHORT */
118         unsigned char repd_datal[4];    /* replied data length  ULELONG  */
119         unsigned char req_pc[2];        /* PC identifier                 */
120         unsigned char res_origin[8];    /* resource origin               */
121         unsigned char mac_value[8];     /* Mac Value                     */
122         unsigned char logon_id[8];      /* Logon Identifier              */
123         unsigned char usage_domain[2];  /* cdx                           */
124         unsigned char resv3[18];        /* reserved for requestor        */
125         unsigned short svr_namel;       /* server name length  ULESHORT  */
126         unsigned char svr_name[8];      /* server name                   */
127 } __attribute__((packed));
128
129 /**
130  * The type 86 message family is associated with PCICC and PCIXCC cards.
131  *
132  * It contains a message header followed by a CPRB.  The CPRB is
133  * the same as the request CPRB, which is described above.
134  *
135  * If format is 1, an error condition exists and no data beyond
136  * the 8-byte message header is of interest.
137  *
138  * The non-error message is shown below.
139  *
140  * Note that all reserved fields must be zeroes.
141  */
142 struct type86_hdr {
143         unsigned char reserved1;        /* 0x00                         */
144         unsigned char type;             /* 0x86                         */
145         unsigned char format;           /* 0x01 (error) or 0x02 (ok)    */
146         unsigned char reserved2;        /* 0x00                         */
147         unsigned char reply_code;       /* reply code (see above)       */
148         unsigned char reserved3[3];     /* 0x000000                     */
149 } __attribute__((packed));
150
151 #define TYPE86_RSP_CODE 0x86
152 #define TYPE86_FMT2     0x02
153
154 struct type86_fmt2_ext {
155         unsigned char     reserved[4];  /* 0x00000000                   */
156         unsigned char     apfs[4];      /* final status                 */
157         unsigned int      count1;       /* length of CPRB + parameters  */
158         unsigned int      offset1;      /* offset to CPRB               */
159         unsigned int      count2;       /* 0x00000000                   */
160         unsigned int      offset2;      /* db offset 0x00000000 for PKD */
161         unsigned int      count3;       /* 0x00000000                   */
162         unsigned int      offset3;      /* 0x00000000                   */
163         unsigned int      count4;       /* 0x00000000                   */
164         unsigned int      offset4;      /* 0x00000000                   */
165 } __attribute__((packed));
166
167 struct function_and_rules_block {
168         unsigned char function_code[2];
169         unsigned short ulen;
170         unsigned char only_rule[8];
171 } __attribute__((packed));
172
173 int zcrypt_pcicc_init(void);
174 void zcrypt_pcicc_exit(void);
175
176 #endif /* _ZCRYPT_PCICC_H_ */