9aa867e465
This patch adds a new crypto_user command that allows the admin to delete the crypto system RNG. Note that this can only be done if the RNG is currently not in use. The next time it is used a new system RNG will be allocated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
111 lines
3 KiB
C
111 lines
3 KiB
C
/*
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* Crypto user configuration API.
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*
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* Copyright (C) 2011 secunet Security Networks AG
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* Copyright (C) 2011 Steffen Klassert <steffen.klassert@secunet.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Netlink configuration messages. */
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enum {
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CRYPTO_MSG_BASE = 0x10,
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CRYPTO_MSG_NEWALG = 0x10,
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CRYPTO_MSG_DELALG,
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CRYPTO_MSG_UPDATEALG,
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CRYPTO_MSG_GETALG,
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CRYPTO_MSG_DELRNG,
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__CRYPTO_MSG_MAX
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};
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#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)
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#define CRYPTO_NR_MSGTYPES (CRYPTO_MSG_MAX + 1 - CRYPTO_MSG_BASE)
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#define CRYPTO_MAX_NAME CRYPTO_MAX_ALG_NAME
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/* Netlink message attributes. */
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enum crypto_attr_type_t {
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CRYPTOCFGA_UNSPEC,
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CRYPTOCFGA_PRIORITY_VAL, /* __u32 */
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CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */
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CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */
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CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */
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CRYPTOCFGA_REPORT_AEAD, /* struct crypto_report_aead */
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CRYPTOCFGA_REPORT_COMPRESS, /* struct crypto_report_comp */
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CRYPTOCFGA_REPORT_RNG, /* struct crypto_report_rng */
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CRYPTOCFGA_REPORT_CIPHER, /* struct crypto_report_cipher */
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CRYPTOCFGA_REPORT_AKCIPHER, /* struct crypto_report_akcipher */
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__CRYPTOCFGA_MAX
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#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
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};
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struct crypto_user_alg {
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char cru_name[CRYPTO_MAX_ALG_NAME];
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char cru_driver_name[CRYPTO_MAX_ALG_NAME];
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char cru_module_name[CRYPTO_MAX_ALG_NAME];
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__u32 cru_type;
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__u32 cru_mask;
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__u32 cru_refcnt;
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__u32 cru_flags;
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};
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struct crypto_report_larval {
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char type[CRYPTO_MAX_NAME];
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};
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struct crypto_report_hash {
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char type[CRYPTO_MAX_NAME];
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unsigned int blocksize;
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unsigned int digestsize;
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};
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struct crypto_report_cipher {
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char type[CRYPTO_MAX_ALG_NAME];
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unsigned int blocksize;
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unsigned int min_keysize;
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unsigned int max_keysize;
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};
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struct crypto_report_blkcipher {
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char type[CRYPTO_MAX_NAME];
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char geniv[CRYPTO_MAX_NAME];
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unsigned int blocksize;
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unsigned int min_keysize;
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unsigned int max_keysize;
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unsigned int ivsize;
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};
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struct crypto_report_aead {
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char type[CRYPTO_MAX_NAME];
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char geniv[CRYPTO_MAX_NAME];
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unsigned int blocksize;
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unsigned int maxauthsize;
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unsigned int ivsize;
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};
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struct crypto_report_comp {
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char type[CRYPTO_MAX_NAME];
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};
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struct crypto_report_rng {
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char type[CRYPTO_MAX_NAME];
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unsigned int seedsize;
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};
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struct crypto_report_akcipher {
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char type[CRYPTO_MAX_NAME];
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};
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#define CRYPTO_REPORT_MAXSIZE (sizeof(struct crypto_user_alg) + \
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sizeof(struct crypto_report_blkcipher))
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