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 */
.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,
};
/*
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
*/