/*
This file is part of GNUnet.
- (C) 2009, 2010, 2012, 2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2009, 2010, 2012, 2013 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
* @file fs/fs_publish_ublock.c
* @brief publish a UBLOCK in GNUnet
- * @see https://gnunet.org/encoding and #2564
+ * @see https://gnunet.org/encoding and #2564
* @author Krista Bennett
* @author Christian Grothoff
*/
* @param iv where to store the IV
* @param label label to use for key derivation
* @param pub public key to use for key derivation
- */
+ */
static void
derive_ublock_encryption_key (struct GNUNET_CRYPTO_SymmetricSessionKey *skey,
struct GNUNET_CRYPTO_SymmetricInitializationVector *iv,
const char *label,
- const struct GNUNET_CRYPTO_EccPublicSignKey *pub)
+ const struct GNUNET_CRYPTO_EcdsaPublicKey *pub)
{
struct GNUNET_HashCode key;
* @param ns public key under which the UBlock was stored
* @param label label under which the UBlock was stored
* @param output where to write the result, has input_len bytes
- */
+ */
void
GNUNET_FS_ublock_decrypt_ (const void *input,
size_t input_len,
- const struct GNUNET_CRYPTO_EccPublicSignKey *ns,
+ const struct GNUNET_CRYPTO_EcdsaPublicKey *ns,
const char *label,
void *output)
{
* Handle for active datastore operation.
*/
struct GNUNET_DATASTORE_QueueEntry *qre;
+
+ /**
+ * Task to run continuation asynchronously.
+ */
+ struct GNUNET_SCHEDULER_Task * task;
+
};
/**
- * Continuation of "GNUNET_FS_publish_ublock_".
+ * Continuation of #GNUNET_FS_publish_ublock_().
*
* @param cls closure of type "struct GNUNET_FS_PublishUblockContext*"
- * @param success GNUNET_SYSERR on failure (including timeout/queue drop)
- * GNUNET_NO if content was already there
- * GNUNET_YES (or other positive value) on success
+ * @param success #GNUNET_SYSERR on failure (including timeout/queue drop)
+ * #GNUNET_NO if content was already there
+ * #GNUNET_YES (or other positive value) on success
* @param min_expiration minimum expiration time required for 0-priority content to be stored
* by the datacache at this time, zero for unknown, forever if we have no
* space for 0-priority content
* @param msg NULL on success, otherwise an error message
*/
static void
-ublock_put_cont (void *cls,
+ublock_put_cont (void *cls,
int32_t success,
struct GNUNET_TIME_Absolute min_expiration,
const char *msg)
}
+/**
+ * Run the continuation.
+ *
+ * @param cls the `struct GNUNET_FS_PublishUblockContext *`
+ */
+static void
+run_cont (void *cls)
+{
+ struct GNUNET_FS_PublishUblockContext *uc = cls;
+
+ uc->task = NULL;
+ uc->cont (uc->cont_cls, NULL);
+ GNUNET_free (uc);
+}
+
+
/**
* Publish a UBlock.
*
* @param bo per-block options
* @param options publication options
* @param cont continuation
- * @param cont_cls closure for cont
- * @return NULL on error ('cont' will still be called)
+ * @param cont_cls closure for @a cont
+ * @return NULL on error (@a cont will still be called)
*/
struct GNUNET_FS_PublishUblockContext *
GNUNET_FS_publish_ublock_ (struct GNUNET_FS_Handle *h,
struct GNUNET_DATASTORE_Handle *dsh,
const char *label,
const char *ulabel,
- const struct GNUNET_CRYPTO_EccPrivateKey *ns,
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *ns,
const struct GNUNET_CONTAINER_MetaData *meta,
const struct GNUNET_FS_Uri *uri,
const struct GNUNET_FS_BlockOptions *bo,
struct GNUNET_HashCode query;
struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
struct GNUNET_CRYPTO_SymmetricSessionKey skey;
- struct GNUNET_CRYPTO_EccPrivateKey *nsd;
- struct GNUNET_CRYPTO_EccPublicSignKey pub;
+ struct GNUNET_CRYPTO_EcdsaPrivateKey *nsd;
+ struct GNUNET_CRYPTO_EcdsaPublicKey pub;
char *uris;
size_t size;
char *kbe;
ub_plain = GNUNET_malloc (size);
kbe = (char *) &ub_plain[1];
if (NULL != ulabel)
- memcpy (kbe, ulabel, ulen);
+ GNUNET_memcpy (kbe, ulabel, ulen);
kbe += ulen;
- memcpy (kbe, uris, slen);
+ GNUNET_memcpy (kbe, uris, slen);
kbe += slen;
GNUNET_free (uris);
sptr = kbe;
}
size = sizeof (struct UBlock) + slen + mdsize + ulen;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Publishing under identifier `%s'\n",
label);
/* get public key of the namespace */
- GNUNET_CRYPTO_ecc_key_get_public_for_signature (ns,
+ GNUNET_CRYPTO_ecdsa_key_get_public (ns,
&pub);
derive_ublock_encryption_key (&skey, &iv,
label, &pub);
/* encrypt ublock */
ub_enc = GNUNET_malloc (size);
- GNUNET_CRYPTO_symmetric_encrypt (&ub_plain[1],
+ GNUNET_CRYPTO_symmetric_encrypt (&ub_plain[1],
ulen + slen + mdsize,
&skey, &iv,
&ub_enc[1]);
- ub_enc->purpose.size = htonl (ulen + slen + mdsize +
+ GNUNET_free (ub_plain);
+ ub_enc->purpose.size = htonl (ulen + slen + mdsize +
sizeof (struct UBlock)
- - sizeof (struct GNUNET_CRYPTO_EccSignature));
+ - sizeof (struct GNUNET_CRYPTO_EcdsaSignature));
ub_enc->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_FS_UBLOCK);
/* derive signing-key from 'label' and public key of the namespace */
- nsd = GNUNET_CRYPTO_ecc_key_derive (ns, label, "fs-ublock");
- GNUNET_CRYPTO_ecc_key_get_public_for_signature (nsd,
+ nsd = GNUNET_CRYPTO_ecdsa_private_key_derive (ns, label, "fs-ublock");
+ GNUNET_CRYPTO_ecdsa_key_get_public (nsd,
&ub_enc->verification_key);
GNUNET_assert (GNUNET_OK ==
- GNUNET_CRYPTO_ecc_sign (nsd,
+ GNUNET_CRYPTO_ecdsa_sign (nsd,
&ub_enc->purpose,
&ub_enc->signature));
GNUNET_CRYPTO_hash (&ub_enc->verification_key,
uc = GNUNET_new (struct GNUNET_FS_PublishUblockContext);
uc->cont = cont;
uc->cont_cls = cont_cls;
- uc->qre =
- GNUNET_DATASTORE_put (dsh, 0, &query,
- ulen + slen + mdsize + sizeof (struct UBlock),
- ub_enc, GNUNET_BLOCK_TYPE_FS_UBLOCK,
- bo->content_priority, bo->anonymity_level,
- bo->replication_level, bo->expiration_time,
- -2, 1, GNUNET_CONSTANTS_SERVICE_TIMEOUT,
- &ublock_put_cont, uc);
+ if (NULL != dsh)
+ {
+ uc->qre =
+ GNUNET_DATASTORE_put (dsh,
+ 0,
+ &query,
+ ulen + slen + mdsize + sizeof (struct UBlock),
+ ub_enc,
+ GNUNET_BLOCK_TYPE_FS_UBLOCK,
+ bo->content_priority,
+ bo->anonymity_level,
+ bo->replication_level,
+ bo->expiration_time,
+ -2, 1,
+ &ublock_put_cont, uc);
+ }
+ else
+ {
+ uc->task = GNUNET_SCHEDULER_add_now (&run_cont,
+ uc);
+ }
return uc;
}
void
GNUNET_FS_publish_ublock_cancel_ (struct GNUNET_FS_PublishUblockContext *uc)
{
- GNUNET_DATASTORE_cancel (uc->qre);
+ if (NULL != uc->qre)
+ GNUNET_DATASTORE_cancel (uc->qre);
+ if (NULL != uc->task)
+ GNUNET_SCHEDULER_cancel (uc->task);
GNUNET_free (uc);
}
+
+/* end of fs_publish_ublock.c */
projects / oweals / gnunet.git / blobdiff