keys: Implement update for the big_key type (b6f61c31) · Commits · 戴 / test

include/keys/big_key-type.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -18,5 +18,6 @@ extern void big_key_revoke(struct key *key);
		extern void big_key_destroy(struct key *key);
		extern void big_key_describe(const struct key big_key, struct seq_file m);
		extern long big_key_read(const struct key key, char buffer, size_t buflen);
		extern int big_key_update(struct key key, struct key_preparsed_payload prep);

		#endif /* _KEYS_BIG_KEY_TYPE_H */

+18 −1

Original line number	Diff line number	Diff line
		@@ -47,7 +47,7 @@ struct key_type key_type_big_key = {
		.destroy = big_key_destroy,
		.describe = big_key_describe,
		.read = big_key_read,
		/* no ->update(); don't add it without changing chacha20poly1305's nonce */
		.update = big_key_update,
		};

		/*
		@@ -191,6 +191,23 @@ void big_key_destroy(struct key *key)
		key->payload.data[big_key_data] = NULL;
		}

		/*
		* Update a big key
		*/
		int big_key_update(struct key key, struct key_preparsed_payload prep)
		{
		int ret;

		ret = key_payload_reserve(key, prep->datalen);
		if (ret < 0)
		return ret;

		if (key_is_positive(key))
		big_key_destroy(key);

		return generic_key_instantiate(key, prep);
		}

		/*
		* describe the big_key key
		*/