tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: Add userspace report for cipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Steffen Klassert
and committed by
Herbert Xu
07a5fa4a
792608e9
+37
+29
crypto/crypto_user.c
+29
crypto/crypto_user.c
···
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return alg;
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}
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+
static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
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{
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struct crypto_report_cipher rcipher;
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snprintf(rcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "cipher");
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rcipher.blocksize = alg->cra_blocksize;
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rcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
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rcipher.max_keysize = alg->cra_cipher.cia_max_keysize;
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NLA_PUT(skb, CRYPTOCFGA_REPORT_CIPHER,
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sizeof(struct crypto_report_cipher), &rcipher);
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return 0;
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nla_put_failure:
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return -EMSGSIZE;
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}
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static int crypto_report_one(struct crypto_alg *alg,
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struct crypto_user_alg *ualg, struct sk_buff *skb)
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{
···
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if (alg->cra_type && alg->cra_type->report) {
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if (alg->cra_type->report(skb, alg))
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goto nla_put_failure;
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goto out;
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}
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switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
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case CRYPTO_ALG_TYPE_CIPHER:
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if (crypto_report_cipher(skb, alg))
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goto nla_put_failure;
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break;
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}
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out:
+8
include/linux/cryptouser.h
+8
include/linux/cryptouser.h
···
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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_MAX
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#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
···
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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 {