/*
This file is part of GNUnet.
- (C) 2009, 2010 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2009, 2010 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
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
- 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.
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file fs/gnunet-service-fs_indexing.c
* @brief program that provides indexing functions of the file-sharing service
* @author Christian Grothoff
- *
- * TODO:
- * - consider doing GNUNET_CRYPTO_hash_file_cancel on active indexing
- * jobs during shutdown (currently, shutdown will only happen after
- * all of those are done, not sure if this is good or bad)
*/
#include "platform.h"
#include <float.h>
#include "gnunet_protocols.h"
#include "gnunet_signatures.h"
#include "gnunet_util_lib.h"
-#include "gnunet-service-fs_drq.h"
+#include "gnunet-service-fs.h"
#include "gnunet-service-fs_indexing.h"
#include "fs.h"
-#define DEBUG_FS GNUNET_YES
-
/**
* In-memory information about indexed files (also available
* on-disk).
*/
struct IndexInfo
{
-
+
/**
- * This is a linked list.
+ * This is a doubly linked list.
*/
struct IndexInfo *next;
+ /**
+ * This is a doubly linked list.
+ */
+ struct IndexInfo *prev;
+
/**
* Name of the indexed file. Memory allocated
* at the end of this struct (do not free).
* Context for hashing of the file.
*/
struct GNUNET_CRYPTO_FileHashContext *fhc;
-
+
/**
* Hash of the contents of the file.
*/
- GNUNET_HashCode file_id;
+ struct GNUNET_HashCode file_id;
};
/**
- * Linked list of indexed files.
+ * Head of linked list of indexed files.
+ * FIXME: we don't need both a DLL and a hashmap here!
*/
-static struct IndexInfo *indexed_files;
+static struct IndexInfo *indexed_files_head;
/**
- * Maps hash over content of indexed files to the respective filename.
- * The filenames are pointers into the indexed_files linked list and
- * do not need to be freed.
+ * Tail of linked list of indexed files.
*/
-static struct GNUNET_CONTAINER_MultiHashMap *ifm;
+static struct IndexInfo *indexed_files_tail;
/**
- * Our scheduler.
+ * Maps hash over content of indexed files to the respective 'struct IndexInfo'.
+ * The filenames are pointers into the indexed_files linked list and
+ * do not need to be freed.
*/
-static struct GNUNET_SCHEDULER_Handle *sched;
+static struct GNUNET_CONTAINER_MultiHashMap *ifm;
/**
* Our configuration.
/**
* Write the current index information list to disk.
- */
+ */
static void
write_index_list ()
{
struct GNUNET_BIO_WriteHandle *wh;
char *fn;
- struct IndexInfo *pos;
+ struct IndexInfo *pos;
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (cfg,
- "FS",
- "INDEXDB",
- &fn))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("Configuration option `%s' in section `%s' missing.\n"),
- "INDEXDB",
- "FS");
- return;
- }
+ GNUNET_CONFIGURATION_get_value_filename (cfg, "FS",
+ "INDEXDB",
+ &fn))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "fs",
+ "INDEXDB");
+ return;
+ }
wh = GNUNET_BIO_write_open (fn);
if (NULL == wh)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("Could not open `%s'.\n"),
- fn);
- GNUNET_free (fn);
- return;
- }
- pos = indexed_files;
- while (pos != NULL)
- {
- if ( (GNUNET_OK !=
- GNUNET_BIO_write (wh,
- &pos->file_id,
- sizeof (GNUNET_HashCode))) ||
- (GNUNET_OK !=
- GNUNET_BIO_write_string (wh,
- pos->filename)) )
- break;
- pos = pos->next;
- }
- if (GNUNET_OK !=
- GNUNET_BIO_write_close (wh))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("Error writing `%s'.\n"),
- fn);
- GNUNET_free (fn);
- return;
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ _("Could not open `%s'.\n"),
+ fn);
+ GNUNET_free (fn);
+ return;
+ }
+ for (pos = indexed_files_head; NULL != pos; pos = pos->next)
+ if ((GNUNET_OK !=
+ GNUNET_BIO_write (wh,
+ &pos->file_id,
+ sizeof (struct GNUNET_HashCode))) ||
+ (GNUNET_OK !=
+ GNUNET_BIO_write_string (wh,
+ pos->filename)))
+ break;
+ if (GNUNET_OK != GNUNET_BIO_write_close (wh))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ _("Error writing `%s'.\n"),
+ fn);
+ GNUNET_free (fn);
+ return;
+ }
GNUNET_free (fn);
}
{
struct GNUNET_BIO_ReadHandle *rh;
char *fn;
- struct IndexInfo *pos;
+ struct IndexInfo *pos;
char *fname;
- GNUNET_HashCode hc;
+ struct GNUNET_HashCode hc;
size_t slen;
char *emsg;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (cfg,
- "FS",
- "INDEXDB",
- &fn))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("Configuration option `%s' in section `%s' missing.\n"),
- "INDEXDB",
- "FS");
- return;
- }
+ "FS",
+ "INDEXDB",
+ &fn))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "fs",
+ "INDEXDB");
+ return;
+ }
if (GNUNET_NO == GNUNET_DISK_file_test (fn))
- {
- /* no index info yet */
- GNUNET_free (fn);
- return;
- }
+ {
+ /* no index info yet */
+ GNUNET_free (fn);
+ return;
+ }
rh = GNUNET_BIO_read_open (fn);
if (NULL == rh)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("Could not open `%s'.\n"),
- fn);
- GNUNET_free (fn);
- return;
- }
-
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ _("Could not open `%s'.\n"),
+ fn);
+ GNUNET_free (fn);
+ return;
+ }
while ( (GNUNET_OK ==
- GNUNET_BIO_read (rh,
- "Hash of indexed file",
- &hc,
- sizeof (GNUNET_HashCode))) &&
- (GNUNET_OK ==
- GNUNET_BIO_read_string (rh,
- "Name of indexed file",
- &fname,
- 1024 * 16)) )
- {
- slen = strlen (fname) + 1;
- pos = GNUNET_malloc (sizeof (struct IndexInfo) + slen);
- pos->file_id = hc;
- pos->filename = (const char *) &pos[1];
- memcpy (&pos[1], fname, slen);
- if (GNUNET_SYSERR ==
- GNUNET_CONTAINER_multihashmap_put (ifm,
- &hc,
- (void*) pos->filename,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
- {
- GNUNET_free (pos);
- }
- else
- {
- pos->next = indexed_files;
- indexed_files = pos;
- }
- GNUNET_free (fname);
- }
- if (GNUNET_OK !=
- GNUNET_BIO_read_close (rh, &emsg))
- GNUNET_free (emsg);
- GNUNET_free (fn);
-}
-
-
-/**
- * We've validated the hash of the file we're about to index. Signal
- * success to the client and update our internal data structures.
- *
- * @param ii the index info entry for the request
- */
-static void
-signal_index_ok (struct IndexInfo *ii)
-{
- if (GNUNET_SYSERR ==
- GNUNET_CONTAINER_multihashmap_put (ifm,
- &ii->file_id,
- (void*) ii->filename,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
+ GNUNET_BIO_read (rh,
+ "Hash of indexed file",
+ &hc,
+ sizeof (struct GNUNET_HashCode))) &&
+ (GNUNET_OK ==
+ GNUNET_BIO_read_string (rh,
+ "Name of indexed file",
+ &fname,
+ 1024 * 16)) &&
+ (fname != NULL) )
+ {
+ slen = strlen (fname) + 1;
+ pos = GNUNET_malloc (sizeof (struct IndexInfo) + slen);
+ pos->file_id = hc;
+ pos->filename = (const char *) &pos[1];
+ GNUNET_memcpy (&pos[1], fname, slen);
+ if (GNUNET_SYSERR ==
+ GNUNET_CONTAINER_multihashmap_put (ifm, &pos->file_id, pos,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Index request received for file `%s' is already indexed as `%s'. Permitting anyway.\n"),
- ii->filename,
- (const char*) GNUNET_CONTAINER_multihashmap_get (ifm,
- &ii->file_id));
- GNUNET_SERVER_transmit_context_append_data (ii->tc,
- NULL, 0,
- GNUNET_MESSAGE_TYPE_FS_INDEX_START_OK);
- GNUNET_SERVER_transmit_context_run (ii->tc,
- GNUNET_TIME_UNIT_MINUTES);
- GNUNET_free (ii);
- return;
+ GNUNET_free (pos);
}
- ii->next = indexed_files;
- indexed_files = ii;
- write_index_list ();
- GNUNET_SERVER_transmit_context_append_data (ii->tc,
- NULL, 0,
- GNUNET_MESSAGE_TYPE_FS_INDEX_START_OK);
- GNUNET_SERVER_transmit_context_run (ii->tc,
- GNUNET_TIME_UNIT_MINUTES);
- ii->tc = NULL;
-}
-
-
-/**
- * Function called once the hash computation over an
- * indexed file has completed.
- *
- * @param cls closure, our publishing context
- * @param res resulting hash, NULL on error
- */
-static void
-hash_for_index_val (void *cls,
- const GNUNET_HashCode *
- res)
-{
- struct IndexInfo *ii = cls;
-
- ii->fhc = NULL;
- if ( (res == NULL) ||
- (0 != memcmp (res,
- &ii->file_id,
- sizeof(GNUNET_HashCode))) )
+ else
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Hash mismatch trying to index file `%s' which has hash `%s'\n"),
- ii->filename,
- GNUNET_h2s (res));
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Wanted `%s'\n",
- GNUNET_h2s (&ii->file_id));
-#endif
- GNUNET_SERVER_transmit_context_append_data (ii->tc,
- NULL, 0,
- GNUNET_MESSAGE_TYPE_FS_INDEX_START_FAILED);
- GNUNET_SERVER_transmit_context_run (ii->tc,
- GNUNET_TIME_UNIT_MINUTES);
- GNUNET_free (ii);
- return;
+ GNUNET_CONTAINER_DLL_insert (indexed_files_head,
+ indexed_files_tail,
+ pos);
}
- signal_index_ok (ii);
-}
-
-
-/**
- * Handle INDEX_START-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
-void
-GNUNET_FS_handle_index_start (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct IndexStartMessage *ism;
- char *fn;
- uint16_t msize;
- struct IndexInfo *ii;
- size_t slen;
- uint32_t dev;
- uint64_t ino;
- uint32_t mydev;
- uint64_t myino;
-
- msize = ntohs(message->size);
- if ( (msize <= sizeof (struct IndexStartMessage)) ||
- ( ((const char *)message)[msize-1] != '\0') )
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client,
- GNUNET_SYSERR);
- return;
- }
- ism = (const struct IndexStartMessage*) message;
- fn = GNUNET_STRINGS_filename_expand ((const char*) &ism[1]);
- dev = ntohl (ism->device);
- ino = GNUNET_ntohll (ism->inode);
- ism = (const struct IndexStartMessage*) message;
- slen = strlen (fn) + 1;
- ii = GNUNET_malloc (sizeof (struct IndexInfo) + slen);
- ii->filename = (const char*) &ii[1];
- memcpy (&ii[1], fn, slen);
- ii->file_id = ism->file_id;
- ii->tc = GNUNET_SERVER_transmit_context_create (client);
- mydev = 0;
- myino = 0;
- if ( ( (dev != 0) ||
- (ino != 0) ) &&
- (GNUNET_OK == GNUNET_DISK_file_get_identifiers (fn,
- &mydev,
- &myino)) &&
- ( (dev == mydev) &&
- (ino == myino) ) )
- {
- /* fast validation OK! */
- signal_index_ok (ii);
- GNUNET_free (fn);
- return;
- }
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Mismatch in file identifiers (%llu != %llu or %u != %u), need to hash.\n",
- (unsigned long long) ino,
- (unsigned long long) myino,
- (unsigned int) dev,
- (unsigned int) mydev);
-#endif
- /* slow validation, need to hash full file (again) */
- ii->fhc = GNUNET_CRYPTO_hash_file (sched,
- GNUNET_SCHEDULER_PRIORITY_IDLE,
- fn,
- HASHING_BLOCKSIZE,
- &hash_for_index_val,
- ii);
- if (ii->fhc == NULL)
- hash_for_index_val (ii, NULL);
+ GNUNET_free (fname);
+ }
+ if (GNUNET_OK != GNUNET_BIO_read_close (rh, &emsg))
+ GNUNET_free (emsg);
GNUNET_free (fn);
}
-/**
- * Handle INDEX_LIST_GET-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
-void
-GNUNET_FS_handle_index_list_get (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- struct GNUNET_SERVER_TransmitContext *tc;
- struct IndexInfoMessage *iim;
- char buf[GNUNET_SERVER_MAX_MESSAGE_SIZE];
- size_t slen;
- const char *fn;
- struct IndexInfo *pos;
-
- tc = GNUNET_SERVER_transmit_context_create (client);
- iim = (struct IndexInfoMessage*) buf;
- pos = indexed_files;
- while (NULL != pos)
- {
- fn = pos->filename;
- slen = strlen (fn) + 1;
- if (slen + sizeof (struct IndexInfoMessage) >
- GNUNET_SERVER_MAX_MESSAGE_SIZE)
- {
- GNUNET_break (0);
- break;
- }
- iim->header.type = htons (GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_ENTRY);
- iim->header.size = htons (slen + sizeof (struct IndexInfoMessage));
- iim->reserved = 0;
- iim->file_id = pos->file_id;
- memcpy (&iim[1], fn, slen);
- GNUNET_SERVER_transmit_context_append_message (tc,
- &iim->header);
- pos = pos->next;
- }
- GNUNET_SERVER_transmit_context_append_data (tc,
- NULL, 0,
- GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_END);
- GNUNET_SERVER_transmit_context_run (tc,
- GNUNET_TIME_UNIT_MINUTES);
-}
-
-
-/**
- * Handle UNINDEX-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
-void
-GNUNET_FS_handle_unindex (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct UnindexMessage *um;
- struct IndexInfo *pos;
- struct IndexInfo *prev;
- struct IndexInfo *next;
- struct GNUNET_SERVER_TransmitContext *tc;
- int found;
-
- um = (const struct UnindexMessage*) message;
- found = GNUNET_NO;
- prev = NULL;
- pos = indexed_files;
- while (NULL != pos)
- {
- next = pos->next;
- if (0 == memcmp (&pos->file_id,
- &um->file_id,
- sizeof (GNUNET_HashCode)))
- {
- if (prev == NULL)
- indexed_files = next;
- else
- prev->next = next;
- GNUNET_free (pos);
- found = GNUNET_YES;
- }
- else
- {
- prev = pos;
- }
- pos = next;
- }
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Client requested unindexing of file `%s': %s\n",
- GNUNET_h2s (&um->file_id),
- found ? "found" : "not found");
-#endif
- if (GNUNET_YES == found)
- write_index_list ();
- tc = GNUNET_SERVER_transmit_context_create (client);
- GNUNET_SERVER_transmit_context_append_data (tc,
- NULL, 0,
- GNUNET_MESSAGE_TYPE_FS_UNINDEX_OK);
- GNUNET_SERVER_transmit_context_run (tc,
- GNUNET_TIME_UNIT_MINUTES);
-}
-
-
-
-
/**
* Continuation called from datastore's remove
* function.
*
* @param cls unused
* @param success did the deletion work?
+ * @param min_expiration minimum expiration time required for content to be stored
* @param msg error message
*/
static void
-remove_cont (void *cls,
- int success,
+remove_cont (void *cls, int success,
+ struct GNUNET_TIME_Absolute min_expiration,
const char *msg)
{
if (GNUNET_OK != success)
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to delete bogus block: %s\n"),
- msg);
+ _("Failed to delete bogus block: %s\n"), msg);
}
* @param type type of the content
* @param priority priority of the content
* @param anonymity anonymity-level for the content
+ * @param replication replication-level for the content
* @param expiration expiration time for the content
* @param uid unique identifier for the datum;
* maybe 0 if no unique identifier is available
* @return GNUNET_OK on success
*/
int
-GNUNET_FS_handle_on_demand_block (const GNUNET_HashCode * key,
- uint32_t size,
- const void *data,
- enum GNUNET_BLOCK_Type type,
- uint32_t priority,
- uint32_t anonymity,
- struct GNUNET_TIME_Absolute
- expiration, uint64_t uid,
- GNUNET_DATASTORE_Iterator cont,
- void *cont_cls)
+GNUNET_FS_handle_on_demand_block (const struct GNUNET_HashCode * key,
+ uint32_t size,
+ const void *data,
+ enum GNUNET_BLOCK_Type type,
+ uint32_t priority,
+ uint32_t anonymity,
+ uint32_t replication,
+ struct GNUNET_TIME_Absolute expiration,
+ uint64_t uid,
+ GNUNET_DATASTORE_DatumProcessor cont,
+ void *cont_cls)
{
const struct OnDemandBlock *odb;
- GNUNET_HashCode nkey;
- struct GNUNET_CRYPTO_AesSessionKey skey;
- struct GNUNET_CRYPTO_AesInitializationVector iv;
- GNUNET_HashCode query;
+ struct GNUNET_HashCode nkey;
+ struct GNUNET_CRYPTO_SymmetricSessionKey skey;
+ struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
+ struct GNUNET_HashCode query;
ssize_t nsize;
char ndata[DBLOCK_SIZE];
char edata[DBLOCK_SIZE];
const char *fn;
struct GNUNET_DISK_FileHandle *fh;
uint64_t off;
+ struct IndexInfo *ii;
if (size != sizeof (struct OnDemandBlock))
- {
- GNUNET_break (0);
- GNUNET_DATASTORE_remove (dsh,
- key,
- size,
- data,
- -1, -1,
- GNUNET_TIME_UNIT_FOREVER_REL,
- &remove_cont,
- NULL);
- return GNUNET_SYSERR;
- }
- odb = (const struct OnDemandBlock*) data;
+ {
+ GNUNET_break (0);
+ GNUNET_DATASTORE_remove (dsh,
+ key,
+ size,
+ data,
+ -1,
+ -1,
+ &remove_cont, NULL);
+ return GNUNET_SYSERR;
+ }
+ odb = (const struct OnDemandBlock *) data;
off = GNUNET_ntohll (odb->offset);
- fn = (const char*) GNUNET_CONTAINER_multihashmap_get (ifm,
- &odb->file_id);
- fh = NULL;
- if ( (NULL == fn) ||
- (NULL == (fh = GNUNET_DISK_file_open (fn,
- GNUNET_DISK_OPEN_READ,
- GNUNET_DISK_PERM_NONE))) ||
- (off !=
- GNUNET_DISK_file_seek (fh,
- off,
- GNUNET_DISK_SEEK_SET)) ||
- (-1 ==
- (nsize = GNUNET_DISK_file_read (fh,
- ndata,
- sizeof (ndata)))) )
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Could not access indexed file `%s' at offset %llu: %s\n"),
- GNUNET_h2s (&odb->file_id),
- (unsigned long long) off,
- STRERROR (errno));
- if (fh != NULL)
- GNUNET_DISK_file_close (fh);
- GNUNET_DATASTORE_remove (dsh,
- key,
- size,
- data,
- -1, -1,
- GNUNET_TIME_UNIT_FOREVER_REL,
- &remove_cont,
- NULL);
- return GNUNET_SYSERR;
- }
+ ii = GNUNET_CONTAINER_multihashmap_get (ifm,
+ &odb->file_id);
+ if (NULL == ii)
+ {
+ GNUNET_break (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to find index %s\n",
+ GNUNET_h2s (&odb->file_id));
+ return GNUNET_SYSERR;
+ }
+ fn = ii->filename;
+ if ((NULL == fn) || (0 != ACCESS (fn, R_OK)))
+ {
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# index blocks removed: original file inaccessible"),
+ 1,
+ GNUNET_YES);
+ GNUNET_DATASTORE_remove (dsh,
+ key,
+ size,
+ data,
+ -1,
+ -1,
+ &remove_cont,
+ NULL);
+ return GNUNET_SYSERR;
+ }
+ if ( (NULL ==
+ (fh =
+ GNUNET_DISK_file_open (fn,
+ GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_NONE))) ||
+ (off != GNUNET_DISK_file_seek (fh,
+ off,
+ GNUNET_DISK_SEEK_SET)) ||
+ (-1 == (nsize = GNUNET_DISK_file_read (fh,
+ ndata,
+ sizeof (ndata)))) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Could not access indexed file `%s' (%s) at offset %llu: %s\n"),
+ GNUNET_h2s (&odb->file_id),
+ fn,
+ (unsigned long long) off,
+ (fn == NULL) ? _("not indexed") : STRERROR (errno));
+ if (fh != NULL)
+ GNUNET_DISK_file_close (fh);
+ GNUNET_DATASTORE_remove (dsh,
+ key,
+ size,
+ data,
+ -1,
+ -1,
+ &remove_cont,
+ NULL);
+ return GNUNET_SYSERR;
+ }
GNUNET_DISK_file_close (fh);
GNUNET_CRYPTO_hash (ndata,
- nsize,
- &nkey);
- GNUNET_CRYPTO_hash_to_aes_key (&nkey, &skey, &iv);
- GNUNET_CRYPTO_aes_encrypt (ndata,
- nsize,
- &skey,
- &iv,
- edata);
+ nsize,
+ &nkey);
+ GNUNET_CRYPTO_hash_to_aes_key (&nkey,
+ &skey,
+ &iv);
+ GNUNET_CRYPTO_symmetric_encrypt (ndata,
+ nsize,
+ &skey,
+ &iv,
+ edata);
GNUNET_CRYPTO_hash (edata,
- nsize,
- &query);
- if (0 != memcmp (&query,
- key,
- sizeof (GNUNET_HashCode)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Indexed file `%s' changed at offset %llu\n"),
- fn,
- (unsigned long long) off);
- GNUNET_DATASTORE_remove (dsh,
- key,
- size,
- data,
- -1, -1,
- GNUNET_TIME_UNIT_FOREVER_REL,
- &remove_cont,
- NULL);
- return GNUNET_SYSERR;
- }
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "On-demand encoded block for query `%s'\n",
- GNUNET_h2s (key));
-#endif
+ nsize,
+ &query);
+ if (0 != memcmp (&query,
+ key,
+ sizeof (struct GNUNET_HashCode)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Indexed file `%s' changed at offset %llu\n"),
+ fn,
+ (unsigned long long) off);
+ GNUNET_DATASTORE_remove (dsh,
+ key,
+ size,
+ data,
+ -1,
+ -1,
+ &remove_cont,
+ NULL);
+ return GNUNET_SYSERR;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "On-demand encoded block for query `%s'\n",
+ GNUNET_h2s (key));
cont (cont_cls,
- key,
- nsize,
- edata,
- GNUNET_BLOCK_TYPE_DBLOCK,
- priority,
- anonymity,
- expiration,
- uid);
+ key,
+ nsize,
+ edata,
+ GNUNET_BLOCK_TYPE_FS_DBLOCK,
+ priority,
+ anonymity,
+ replication,
+ expiration,
+ uid);
return GNUNET_OK;
}
/**
- * Task run during shutdown.
+ * Transmit information about indexed files to @a mq.
*
- * @param cls unused
- * @param tc unused
+ * @param mq message queue to send information to
*/
-static void
-shutdown_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+void
+GNUNET_FS_indexing_send_list (struct GNUNET_MQ_Handle *mq)
+{
+ struct GNUNET_MQ_Envelope *env;
+ struct IndexInfoMessage *iim;
+ struct GNUNET_MessageHeader *iem;
+ size_t slen;
+ const char *fn;
+ struct IndexInfo *pos;
+
+ for (pos = indexed_files_head; NULL != pos; pos = pos->next)
+ {
+ fn = pos->filename;
+ slen = strlen (fn) + 1;
+ if (slen + sizeof (struct IndexInfoMessage) >=
+ GNUNET_MAX_MESSAGE_SIZE)
+ {
+ GNUNET_break (0);
+ break;
+ }
+ env = GNUNET_MQ_msg_extra (iim,
+ slen,
+ GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_ENTRY);
+ iim->reserved = 0;
+ iim->file_id = pos->file_id;
+ GNUNET_memcpy (&iim[1],
+ fn,
+ slen);
+ GNUNET_MQ_send (mq,
+ env);
+ }
+ env = GNUNET_MQ_msg (iem,
+ GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_END);
+ GNUNET_MQ_send (mq,
+ env);
+}
+
+
+/**
+ * Remove a file from the index.
+ *
+ * @param fid identifier of the file to remove
+ * @return #GNUNET_YES if the @a fid was found
+ */
+int
+GNUNET_FS_indexing_do_unindex (const struct GNUNET_HashCode *fid)
{
- struct IndexInfo *pos;
+ struct IndexInfo *pos;
- GNUNET_CONTAINER_multihashmap_destroy (ifm);
- ifm = NULL;
- while (NULL != (pos = indexed_files))
+ for (pos = indexed_files_head; NULL != pos; pos = pos->next)
+ {
+ if (0 == memcmp (&pos->file_id,
+ fid,
+ sizeof (struct GNUNET_HashCode)))
{
- indexed_files = pos->next;
+ GNUNET_CONTAINER_DLL_remove (indexed_files_head,
+ indexed_files_tail,
+ pos);
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_remove (ifm,
+ &pos->file_id,
+ pos));
GNUNET_free (pos);
+ write_index_list ();
+ return GNUNET_YES;
}
- sched = NULL;
+ }
+ return GNUNET_NO;
+}
+
+
+/**
+ * Add the given file to the list of indexed files.
+ *
+ * @param filename name of the file
+ * @param file_id hash identifier for @a filename
+ */
+void
+GNUNET_FS_add_to_index (const char *filename,
+ const struct GNUNET_HashCode *file_id)
+{
+ struct IndexInfo *ii;
+ size_t slen;
+
+ ii = GNUNET_CONTAINER_multihashmap_get (ifm,
+ file_id);
+ if (NULL != ii)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Index request received for file `%s' is already indexed as `%s'. Permitting anyway.\n"),
+ filename,
+ ii->filename);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Adding file %s to index as %s\n",
+ filename,
+ GNUNET_h2s (file_id));
+ slen = strlen (filename) + 1;
+ ii = GNUNET_malloc (sizeof (struct IndexInfo) + slen);
+ ii->file_id = *file_id;
+ ii->filename = (const char *) &ii[1];
+ GNUNET_memcpy (&ii[1],
+ filename,
+ slen);
+ GNUNET_CONTAINER_DLL_insert (indexed_files_head,
+ indexed_files_tail,
+ ii);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (ifm,
+ &ii->file_id,
+ ii,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ write_index_list ();
+}
+
+
+/**
+ * Shutdown the module.
+ */
+void
+GNUNET_FS_indexing_done ()
+{
+ struct IndexInfo *pos;
+
+ while (NULL != (pos = indexed_files_head))
+ {
+ GNUNET_CONTAINER_DLL_remove (indexed_files_head,
+ indexed_files_tail,
+ pos);
+ if (pos->fhc != NULL)
+ GNUNET_CRYPTO_hash_file_cancel (pos->fhc);
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_remove (ifm,
+ &pos->file_id,
+ pos));
+ GNUNET_free (pos);
+ }
+ GNUNET_CONTAINER_multihashmap_destroy (ifm);
+ ifm = NULL;
cfg = NULL;
}
/**
* Initialize the indexing submodule.
*
- * @param s scheduler to use
* @param c configuration to use
* @param d datastore to use
*/
int
-GNUNET_FS_indexing_init (struct GNUNET_SCHEDULER_Handle *s,
- const struct GNUNET_CONFIGURATION_Handle *c,
- struct GNUNET_DATASTORE_Handle *d)
+GNUNET_FS_indexing_init (const struct GNUNET_CONFIGURATION_Handle *c,
+ struct GNUNET_DATASTORE_Handle *d)
{
- sched = s;
cfg = c;
dsh = d;
- ifm = GNUNET_CONTAINER_multihashmap_create (128);
- GNUNET_SCHEDULER_add_delayed (sched,
- GNUNET_TIME_UNIT_FOREVER_REL,
- &shutdown_task,
- NULL);
+ ifm = GNUNET_CONTAINER_multihashmap_create (128,
+ GNUNET_YES);
read_index_list ();
return GNUNET_OK;
}
projects / oweals / gnunet.git / blobdiff