1/*
2 * Crypto user configuration API.
3 *
4 * Copyright (C) 2011 secunet Security Networks AG
5 * Copyright (C) 2011 Steffen Klassert <steffen.klassert@secunet.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21/* Netlink configuration messages.  */
22enum {
23	CRYPTO_MSG_BASE = 0x10,
24	CRYPTO_MSG_NEWALG = 0x10,
25	CRYPTO_MSG_DELALG,
26	CRYPTO_MSG_UPDATEALG,
27	CRYPTO_MSG_GETALG,
28	__CRYPTO_MSG_MAX
29};
30#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)
31#define CRYPTO_NR_MSGTYPES (CRYPTO_MSG_MAX + 1 - CRYPTO_MSG_BASE)
32
33#define CRYPTO_MAX_NAME CRYPTO_MAX_ALG_NAME
34
35/* Netlink message attributes.  */
36enum crypto_attr_type_t {
37	CRYPTOCFGA_UNSPEC,
38	CRYPTOCFGA_PRIORITY_VAL,	/* __u32 */
39	CRYPTOCFGA_REPORT_LARVAL,	/* struct crypto_report_larval */
40	CRYPTOCFGA_REPORT_HASH,		/* struct crypto_report_hash */
41	CRYPTOCFGA_REPORT_BLKCIPHER,	/* struct crypto_report_blkcipher */
42	CRYPTOCFGA_REPORT_AEAD,		/* struct crypto_report_aead */
43	CRYPTOCFGA_REPORT_COMPRESS,	/* struct crypto_report_comp */
44	CRYPTOCFGA_REPORT_RNG,		/* struct crypto_report_rng */
45	CRYPTOCFGA_REPORT_CIPHER,	/* struct crypto_report_cipher */
46	__CRYPTOCFGA_MAX
47
48#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
49};
50
51struct crypto_user_alg {
52	char cru_name[CRYPTO_MAX_ALG_NAME];
53	char cru_driver_name[CRYPTO_MAX_ALG_NAME];
54	char cru_module_name[CRYPTO_MAX_ALG_NAME];
55	__u32 cru_type;
56	__u32 cru_mask;
57	__u32 cru_refcnt;
58	__u32 cru_flags;
59};
60
61struct crypto_report_larval {
62	char type[CRYPTO_MAX_NAME];
63};
64
65struct crypto_report_hash {
66	char type[CRYPTO_MAX_NAME];
67	unsigned int blocksize;
68	unsigned int digestsize;
69};
70
71struct crypto_report_cipher {
72	char type[CRYPTO_MAX_ALG_NAME];
73	unsigned int blocksize;
74	unsigned int min_keysize;
75	unsigned int max_keysize;
76};
77
78struct crypto_report_blkcipher {
79	char type[CRYPTO_MAX_NAME];
80	char geniv[CRYPTO_MAX_NAME];
81	unsigned int blocksize;
82	unsigned int min_keysize;
83	unsigned int max_keysize;
84	unsigned int ivsize;
85};
86
87struct crypto_report_aead {
88	char type[CRYPTO_MAX_NAME];
89	char geniv[CRYPTO_MAX_NAME];
90	unsigned int blocksize;
91	unsigned int maxauthsize;
92	unsigned int ivsize;
93};
94
95struct crypto_report_comp {
96	char type[CRYPTO_MAX_NAME];
97};
98
99struct crypto_report_rng {
100	char type[CRYPTO_MAX_NAME];
101	unsigned int seedsize;
102};
103
104#define CRYPTO_REPORT_MAXSIZE (sizeof(struct crypto_user_alg) + \
105			       sizeof(struct crypto_report_blkcipher))
106