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dm-inlinecrypt: add target for inline block device encryption #617

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dm-inlinecrypt: add target for inline block device encryption #617

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ff69eb3
block: export blk-crypto symbols required by dm-inlinecrypt
ebiggers Mar 4, 2026
f97a508
dm-inlinecrypt: add target for inline block device encryption
ebiggers Mar 4, 2026
bdf1d9c
dm-inlinecrypt: Expose inline crypto caps to the device
Mar 4, 2026
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3 changes: 3 additions & 0 deletions block/blk-crypto.c
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,7 @@ void bio_crypt_set_ctx(struct bio *bio, const struct blk_crypto_key *key,

bio->bi_crypt_context = bc;
}
EXPORT_SYMBOL_GPL(bio_crypt_set_ctx);

void __bio_crypt_free_ctx(struct bio *bio)
{
Expand Down Expand Up @@ -349,6 +350,7 @@ int blk_crypto_init_key(struct blk_crypto_key *blk_key,

return 0;
}
EXPORT_SYMBOL_GPL(blk_crypto_init_key);

bool blk_crypto_config_supported_natively(struct block_device *bdev,
const struct blk_crypto_config *cfg)
Expand Down Expand Up @@ -399,6 +401,7 @@ int blk_crypto_start_using_key(struct block_device *bdev,
}
return blk_crypto_fallback_start_using_mode(key->crypto_cfg.crypto_mode);
}
EXPORT_SYMBOL_GPL(blk_crypto_start_using_key);

/**
* blk_crypto_evict_key() - Evict a blk_crypto_key from a block_device
Expand Down
10 changes: 10 additions & 0 deletions drivers/md/Kconfig
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Expand Up @@ -313,6 +313,16 @@ config DM_CRYPT

If unsure, say N.

config DM_INLINECRYPT
tristate "Inline encryption target support"
depends on BLK_DEV_DM
depends on BLK_INLINE_ENCRYPTION
help
This device-mapper target is similar to dm-crypt, but it uses the
blk-crypto API instead of the regular crypto API. This allows it to
take advantage of inline encryption hardware such as that commonly
built into UFS host controllers.

config DM_SNAPSHOT
tristate "Snapshot target"
depends on BLK_DEV_DM
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1 change: 1 addition & 0 deletions drivers/md/Makefile
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Expand Up @@ -55,6 +55,7 @@ obj-$(CONFIG_DM_UNSTRIPED) += dm-unstripe.o
obj-$(CONFIG_DM_BUFIO) += dm-bufio.o
obj-$(CONFIG_DM_BIO_PRISON) += dm-bio-prison.o
obj-$(CONFIG_DM_CRYPT) += dm-crypt.o
obj-$(CONFIG_DM_INLINECRYPT) += dm-inlinecrypt.o
obj-$(CONFIG_DM_DELAY) += dm-delay.o
obj-$(CONFIG_DM_DUST) += dm-dust.o
obj-$(CONFIG_DM_FLAKEY) += dm-flakey.o
Expand Down
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