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blk-crypto: export wrapped key functions

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Export blk_crypto_derive_sw_secret(), blk_crypto_import_key(),
blk_crypto_generate_key(), and blk_crypto_prepare_key() so that they can
be used by device-mapper when passing through wrapped key support.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Eric Biggers 2025-05-01 14:23:19 -07:00 • committed by Mikulas Patocka
parent b7c18b17a1
commit 025e138eeb
1 changed files with 4 additions and 0 deletions
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4
block/blk-crypto-profile.c
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@ -501,6 +501,7 @@ int blk_crypto_derive_sw_secret(struct block_device *bdev,
blk_crypto_hw_exit(profile); blk_crypto_hw_exit(profile);
return err; return err;
} }
EXPORT_SYMBOL_GPL(blk_crypto_derive_sw_secret);
int blk_crypto_import_key(struct blk_crypto_profile *profile, int blk_crypto_import_key(struct blk_crypto_profile *profile,
const u8 *raw_key, size_t raw_key_size, const u8 *raw_key, size_t raw_key_size,
@ -520,6 +521,7 @@ int blk_crypto_import_key(struct blk_crypto_profile *profile,
blk_crypto_hw_exit(profile); blk_crypto_hw_exit(profile);
return ret; return ret;
} }
EXPORT_SYMBOL_GPL(blk_crypto_import_key);
int blk_crypto_generate_key(struct blk_crypto_profile *profile, int blk_crypto_generate_key(struct blk_crypto_profile *profile,
u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]) u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE])
@ -537,6 +539,7 @@ int blk_crypto_generate_key(struct blk_crypto_profile *profile,
blk_crypto_hw_exit(profile); blk_crypto_hw_exit(profile);
return ret; return ret;
} }
EXPORT_SYMBOL_GPL(blk_crypto_generate_key);
int blk_crypto_prepare_key(struct blk_crypto_profile *profile, int blk_crypto_prepare_key(struct blk_crypto_profile *profile,
const u8 *lt_key, size_t lt_key_size, const u8 *lt_key, size_t lt_key_size,
@ -556,6 +559,7 @@ int blk_crypto_prepare_key(struct blk_crypto_profile *profile,
blk_crypto_hw_exit(profile); blk_crypto_hw_exit(profile);
return ret; return ret;
} }
EXPORT_SYMBOL_GPL(blk_crypto_prepare_key);
/** /**
* blk_crypto_intersect_capabilities() - restrict supported crypto capabilities * blk_crypto_intersect_capabilities() - restrict supported crypto capabilities