Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
keys: Implement update for the big_key type
Implement the ->update op for the big_key type.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
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include/keys/big_key-type.h
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include/keys/big_key-type.h
···
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extern void big_key_destroy(struct key *key);
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extern void big_key_describe(const struct key *big_key, struct seq_file *m);
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extern long big_key_read(const struct key *key, char *buffer, size_t buflen);
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extern int big_key_update(struct key *key, struct key_preparsed_payload *prep);
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#endif /* _KEYS_BIG_KEY_TYPE_H */
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security/keys/big_key.c
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security/keys/big_key.c
···
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.destroy = big_key_destroy,
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.describe = big_key_describe,
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.read = big_key_read,
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/* no ->update(); don't add it without changing chacha20poly1305's nonce */
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.update = big_key_update,
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};
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/*
···
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}
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kzfree(key->payload.data[big_key_data]);
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key->payload.data[big_key_data] = NULL;
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}
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/*
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* Update a big key
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*/
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int big_key_update(struct key *key, struct key_preparsed_payload *prep)
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{
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int ret;
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ret = key_payload_reserve(key, prep->datalen);
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if (ret < 0)
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return ret;
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if (key_is_positive(key))
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big_key_destroy(key);
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return generic_key_instantiate(key, prep);
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}
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/*