include/linux/cryptouser.h

   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.  */
  22 enum {
  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.  */
  36 enum 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
  51 struct 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
  61 struct crypto_report_larval {
  62         char type[CRYPTO_MAX_NAME];
  63 };
  64
  65 struct crypto_report_hash {
  66         char type[CRYPTO_MAX_NAME];
  67         unsigned int blocksize;
  68         unsigned int digestsize;
  69 };
  70
  71 struct 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
  78 struct 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
  87 struct 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
  95 struct crypto_report_comp {
  96         char type[CRYPTO_MAX_NAME];
  97 };
  98
  99 struct 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))