#include "platform.h"
#include "mesh.h"
#include "mesh_protocol.h"
-#include "gnunet_dht_service.h"
#include "mesh_tunnel_tree.h"
+#include "block_mesh.h"
+#include "mesh_block_lib.h"
+#include "gnunet_dht_service.h"
+#include "gnunet_regex_lib.h"
/* TODO: move into configuration file */
#define REFRESH_PATH_TIME GNUNET_TIME_relative_multiply(\
300)
#define APP_ANNOUNCE_TIME GNUNET_TIME_relative_multiply(\
GNUNET_TIME_UNIT_SECONDS,\
- 5)
+ 15)
#define ID_ANNOUNCE_TIME GNUNET_TIME_relative_multiply(\
GNUNET_TIME_UNIT_SECONDS,\
- 5)
+ 15)
#define UNACKNOWLEDGED_WAIT GNUNET_TIME_relative_multiply(\
GNUNET_TIME_UNIT_SECONDS,\
2)
-#define DEFAULT_TTL 64
+#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply(\
+ GNUNET_TIME_UNIT_SECONDS,\
+ 30)
+#define DEFAULT_TTL 64
+
+#define DHT_REPLICATION_LEVEL 10
/* TODO END */
-#define MESH_DEBUG_DHT GNUNET_YES
-#define MESH_DEBUG_CONNECTION GNUNET_NO
+#define MESH_BLOOM_SIZE 128
+
+#define MESH_DEBUG_DHT GNUNET_YES
+#define MESH_DEBUG_CONNECTION GNUNET_NO
#if MESH_DEBUG_CONNECTION
#define DEBUG_CONN(...) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
*/
unsigned int nignore;
+ /**
+ * Blacklisted peers
+ */
+ GNUNET_PEER_Id *blacklisted;
+
+ /**
+ * Number of elements in blacklisted
+ */
+ unsigned int nblacklisted;
+
+ /**
+ * Bloomfilter (for peer identities) to stop circular routes
+ */
+ char bloomfilter[MESH_BLOOM_SIZE];
+
/**
* Tunnel paths
*/
*/
struct GNUNET_DHT_GetHandle *dht_get_type;
+ /**
+ * Initial context of the regex search for a connect_by_string
+ */
+ struct MeshRegexSearchContext *regex_ctx;
+
/**
* Task to keep the used paths alive
*/
* ID of the client, mainly for debug messages
*/
unsigned int id;
+
+ /**
+ * Regular expressions describing the services offered by this client.
+ */
+ char **regexes; // FIXME add timeout? API to remove a regex?
+
+ /**
+ * Number of regular expressions in regexes.
+ */
+ unsigned int n_regex;
+
+ /**
+ * Task to refresh all regular expresions in the DHT.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier regex_announce_task;
};
+/**
+ * Struct to keep information of searches of services described by a regex
+ * using a user-provided string service description.
+ */
+struct MeshRegexSearchInfo
+{
+ /**
+ * Which tunnel is this for
+ */
+ struct MeshTunnel *t;
+
+ /**
+ * User provided description of the searched service.
+ */
+ char *description;
+
+ /**
+ * Part of the description already consumed by the search.
+ */
+ size_t position;
+
+ /**
+ * Running DHT GETs.
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *dht_get_handles;
+
+ /**
+ * Results from running DHT GETs.
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *dht_get_results;
+
+ /**
+ * Contexts, for each running DHT GET. Free all on end of search.
+ */
+ struct MeshRegexSearchContext **contexts;
+
+ /**
+ * Number of contexts (branches/steps in search).
+ */
+ unsigned int n_contexts;
+
+ /**
+ * Peer that is connecting via connect_by_string. When connected, free ctx.
+ */
+ GNUNET_PEER_Id peer;
+
+ /**
+ * Other peers that are found but not yet being connected to.
+ */
+ GNUNET_PEER_Id *peers;
+
+ /**
+ * Number of elements in peers.
+ */
+ unsigned int n_peers;
+
+ /**
+ * Next peer to try to connect to.
+ */
+ unsigned int i_peer;
+
+ /**
+ * Timeout for a connect attempt.
+ * When reached, try to connect to a different peer, if any. If not,
+ * try the same peer again.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout;
+
+};
+
+/**
+ * Struct to keep state of running searches that have consumed a part of
+ * the inital string.
+ */
+struct MeshRegexSearchContext
+{
+ /**
+ * Part of the description already consumed by
+ * this particular search branch.
+ */
+ size_t position;
+
+ /**
+ * Information about the search.
+ */
+ struct MeshRegexSearchInfo *info;
+
+};
/******************************************************************************/
/************************ DEBUG FUNCTIONS ****************************/
unsigned int next_client_id;
+/******************************************************************************/
+/*********************** DECLARATIONS **************************/
+/******************************************************************************/
+
+/* FIXME move declarations here */
+
+/**
+ * Function to process paths received for a new peer addition. The recorded
+ * paths form the initial tunnel, which can be optimized later.
+ * Called on each result obtained for the DHT search.
+ *
+ * @param cls closure
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ */
+static void
+dht_get_id_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data);
+
+
+/**
+ * Function to process DHT string to regex matching.
+ * Called on each result obtained for the DHT search.
+ *
+ * @param cls closure (search context)
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param get_path path of the get request (not used)
+ * @param get_path_length lenght of get_path (not used)
+ * @param put_path path of the put request (not used)
+ * @param put_path_length length of the put_path (not used)
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ *
+ * TODO: re-issue the request after certain time? cancel after X results?
+ */
+static void
+dht_get_string_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data);
+
+
+/**
+ * Function to process DHT string to regex matching.
+ * Called on each result obtained for the DHT search.
+ *
+ * @param cls closure (search context)
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param get_path path of the get request (not used)
+ * @param get_path_length lenght of get_path (not used)
+ * @param put_path path of the put request (not used)
+ * @param put_path_length length of the put_path (not used)
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ */
+static void
+dht_get_string_accept_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
+ enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data);
+
+
+/**
+ * Iterator over edges in a regex block retrieved from the DHT.
+ *
+ * @param cls Closure.
+ * @param token Token that follows to next state.
+ * @param len Lenght of token.
+ * @param key Hash of next state.
+ *
+ * @return GNUNET_YES if should keep iterating, GNUNET_NO otherwise.
+ */
+static int
+regex_edge_iterator (void *cls,
+ const char *token,
+ size_t len,
+ const struct GNUNET_HashCode *key);
+
+
+/**
+ * Find a path to a peer that offers a regex servcie compatible
+ * with a given string.
+ *
+ * @param key The key of the accepting state.
+ * @param ctx Context containing info about the string, tunnel, etc.
+ */
+static void
+regex_find_path (const struct GNUNET_HashCode *key,
+ struct MeshRegexSearchContext *ctx);
/******************************************************************************/
/************************ ITERATORS ****************************/
/* FIXME move iterators here */
+/**
+ * Iterator over found existing mesh regex blocks that match an ongoing search.
+ *
+ * @param cls closure
+ * @param key current key code
+ * @param value value in the hash map
+ * @return GNUNET_YES if we should continue to iterate,
+ * GNUNET_NO if not.
+ */
+static int
+regex_result_iterator (void *cls,
+ const struct GNUNET_HashCode * key,
+ void *value)
+{
+ struct MeshRegexBlock *block = value;
+ struct MeshRegexSearchContext *ctx = cls;
+
+ if (GNUNET_YES == ntohl(block->accepting) &&
+ ctx->position == strlen (ctx->info->description))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* Found accepting known block\n");
+ regex_find_path (key, ctx);
+ return GNUNET_YES; // We found an accept state!
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* %u, %u, [%u]\n",
+ ctx->position, strlen(ctx->info->description),
+ ntohl(block->accepting));
+
+ }
+ (void) GNUNET_MESH_regex_block_iterate (block, SIZE_MAX,
+ ®ex_edge_iterator, ctx);
+
+ return GNUNET_YES;
+}
+
+/**
+ * Iterator over edges in a regex block retrieved from the DHT.
+ *
+ * @param cls Closure (context of the search).
+ * @param token Token that follows to next state.
+ * @param len Lenght of token.
+ * @param key Hash of next state.
+ *
+ * @return GNUNET_YES if should keep iterating, GNUNET_NO otherwise.
+ */
+static int
+regex_edge_iterator (void *cls,
+ const char *token,
+ size_t len,
+ const struct GNUNET_HashCode *key)
+{
+ struct MeshRegexSearchContext *ctx = cls;
+ struct MeshRegexSearchContext *new_ctx;
+ struct MeshRegexSearchInfo *info = ctx->info;
+ struct GNUNET_DHT_GetHandle *get_h;
+ char *current;
+ size_t current_len;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* Start of regex edge iterator\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* descr : %s\n", info->description);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* posit : %u\n", ctx->position);
+ current = &info->description[ctx->position];
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* currt : %s\n", current);
+ current_len = strlen (info->description) - ctx->position;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* ctlen : %u\n", current_len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* tklen : %u\n", len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* tk[0] : %c\n", token[0]);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* nextk : %s\n", GNUNET_h2s(key));
+ if (len > current_len)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* Token too long, END\n");
+ return GNUNET_YES; // Token too long, wont match
+ }
+ if (0 != strncmp (current, token, len))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* Token doesn't match, END\n");
+ return GNUNET_YES; // Token doesn't match
+ }
+ new_ctx = GNUNET_malloc (sizeof (struct MeshRegexSearchContext));
+ new_ctx->info = info;
+ new_ctx->position = ctx->position + len;
+ GNUNET_array_append (info->contexts, info->n_contexts, new_ctx);
+ if (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_contains(info->dht_get_handles, key))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* GET running, END\n");
+ GNUNET_CONTAINER_multihashmap_get_multiple (info->dht_get_results, key,
+ ®ex_result_iterator,
+ new_ctx);
+ return GNUNET_YES; // We are already looking for it
+ }
+ /* Start search in DHT */
+ get_h =
+ GNUNET_DHT_get_start (dht_handle, /* handle */
+ GNUNET_BLOCK_TYPE_MESH_REGEX, /* type */
+ key, /* key to search */
+ DHT_REPLICATION_LEVEL, /* replication level */
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ NULL, /* xquery */ // FIXME BLOOMFILTER
+ 0, /* xquery bits */ // FIXME BLOOMFILTER SIZE
+ &dht_get_string_handler, new_ctx);
+ if (GNUNET_OK !=
+ GNUNET_CONTAINER_multihashmap_put(info->dht_get_handles, key, get_h,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
+ {
+ GNUNET_break (0);
+ return GNUNET_YES;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "* End of regex edge iterator\n");
+ return GNUNET_YES;
+}
+
+/**
+ * Iterator over hash map entries to cancel DHT GET requests after a
+ * successful connect_by_string.
+ *
+ * @param cls Closure (unused).
+ * @param key Current key code (unused).
+ * @param value Value in the hash map (get handle).
+ * @return GNUNET_YES if we should continue to iterate,
+ * GNUNET_NO if not.
+ */
+static int
+regex_cancel_dht_get (void *cls,
+ const struct GNUNET_HashCode * key,
+ void *value)
+{
+ struct GNUNET_DHT_GetHandle *h = value;
+
+ GNUNET_DHT_get_stop (h);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Iterator over hash map entries to free MeshRegexBlocks stored during the
+ * search for connect_by_string.
+ *
+ * @param cls Closure (unused).
+ * @param key Current key code (unused).
+ * @param value MeshRegexBlock in the hash map.
+ * @return GNUNET_YES if we should continue to iterate,
+ * GNUNET_NO if not.
+ */
+static int
+regex_free_result (void *cls,
+ const struct GNUNET_HashCode * key,
+ void *value)
+{
+
+ GNUNET_free (value);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Regex callback iterator to store own service description in the DHT.
+ *
+ * @param cls closure.
+ * @param key hash for current state.
+ * @param proof proof for current state.
+ * @param accepting GNUNET_YES if this is an accepting state, GNUNET_NO if not.
+ * @param num_edges number of edges leaving current state.
+ * @param edges edges leaving current state.
+ */
+void
+regex_iterator (void *cls, const struct GNUNET_HashCode *key, const char *proof,
+ int accepting, unsigned int num_edges,
+ const struct GNUNET_REGEX_Edge *edges)
+{
+ struct MeshRegexBlock *block;
+ struct MeshRegexEdge *block_edge;
+ enum GNUNET_DHT_RouteOption opt;
+ size_t size;
+ size_t len;
+ unsigned int i;
+ unsigned int offset;
+ char *aux;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " regex dht put for state %s\n",
+ GNUNET_h2s(key));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " proof: %s\n",
+ proof);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " num edges: %u\n",
+ num_edges);
+
+ opt = GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE;
+ if (GNUNET_YES == accepting)
+ {
+ struct MeshRegexAccept block;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " state %s is accepting, putting own id\n",
+ GNUNET_h2s(key));
+ size = sizeof (block);
+ block.key = *key;
+ block.id = my_full_id;
+ (void)
+ GNUNET_DHT_put(dht_handle, key,
+ DHT_REPLICATION_LEVEL,
+ opt | GNUNET_DHT_RO_RECORD_ROUTE,
+ GNUNET_BLOCK_TYPE_MESH_REGEX_ACCEPT,
+ size,
+ (char *) &block,
+ GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (),
+ APP_ANNOUNCE_TIME),
+ APP_ANNOUNCE_TIME,
+ NULL, NULL);
+ }
+ len = strlen(proof);
+ size = sizeof (struct MeshRegexBlock) + len;
+ block = GNUNET_malloc (size);
+
+ block->key = *key;
+ block->n_proof = htonl (len);
+ block->n_edges = htonl (num_edges);
+ block->accepting = htonl (accepting);
+
+ /* Store the proof at the end of the block. */
+ aux = (char *) &block[1];
+ memcpy (aux, proof, len);
+ aux = &aux[len];
+
+ /* Store each edge in a variable length MeshEdge struct at the
+ * very end of the MeshRegexBlock structure.
+ */
+ for (i = 0; i < num_edges; i++)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " edge %s towards %s\n",
+ edges[i].label,
+ GNUNET_h2s(&edges[i].destination));
+
+ /* aux points at the end of the last block */
+ len = strlen (edges[i].label);
+ size += sizeof (struct MeshRegexEdge) + len;
+ // Calculate offset FIXME is this ok? use size instead?
+ offset = aux - (char *) block;
+ block = GNUNET_realloc (block, size);
+ aux = &((char *) block)[offset];
+ block_edge = (struct MeshRegexEdge *) aux;
+ block_edge->key = edges[i].destination;
+ block_edge->n_token = htonl (len);
+ aux = (char *) &block_edge[1];
+ memcpy (aux, edges[i].label, len);
+ aux = &aux[len];
+ }
+ (void)
+ GNUNET_DHT_put(dht_handle, key,
+ DHT_REPLICATION_LEVEL,
+ opt,
+ GNUNET_BLOCK_TYPE_MESH_REGEX, size,
+ (char *) block,
+ GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (),
+ APP_ANNOUNCE_TIME),
+ APP_ANNOUNCE_TIME,
+ NULL, NULL);
+ GNUNET_free (block);
+}
+
+
+/**
+ * Store the regular expression describing a local service into the DHT.
+ *
+ * @param regex The regular expresion.
+ */
+static void
+regex_put (const char *regex)
+{
+ struct GNUNET_REGEX_Automaton *dfa;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "regex_put (%s) start\n", regex);
+ dfa = GNUNET_REGEX_construct_dfa (regex, strlen(regex));
+ GNUNET_REGEX_iterate_all_edges (dfa, ®ex_iterator, NULL);
+ GNUNET_REGEX_automaton_destroy (dfa);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "regex_put (%s) end\n", regex);
+
+}
+
+/**
+ * Find a path to a peer that offers a regex servcie compatible
+ * with a given string.
+ *
+ * @param key The key of the accepting state.
+ * @param ctx Context containing info about the string, tunnel, etc.
+ */
+static void
+regex_find_path (const struct GNUNET_HashCode *key,
+ struct MeshRegexSearchContext *ctx)
+{
+ struct GNUNET_DHT_GetHandle *get_h;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found peer by service\n");
+ get_h = GNUNET_DHT_get_start (dht_handle, /* handle */
+ GNUNET_BLOCK_TYPE_MESH_REGEX_ACCEPT, /* type */
+ key, /* key to search */
+ DHT_REPLICATION_LEVEL, /* replication level */
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE |
+ GNUNET_DHT_RO_RECORD_ROUTE,
+ NULL, /* xquery */ // FIXME BLOOMFILTER
+ 0, /* xquery bits */ // FIXME BLOOMFILTER SIZE
+ &dht_get_string_accept_handler, ctx);
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put(ctx->info->dht_get_handles,
+ key,
+ get_h,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+}
+
/******************************************************************************/
/************************ PERIODIC FUNCTIONS ****************************/
static int
announce_application (void *cls, const struct GNUNET_HashCode * key, void *value)
{
+ struct PBlock block;
+ struct MeshClient *c;
+
+ block.id = my_full_id;
+ c = GNUNET_CONTAINER_multihashmap_get (applications, key);
+ block.type = (long) GNUNET_CONTAINER_multihashmap_get (c->apps, key);
+ if (0 == block.type)
+ {
+ GNUNET_break(0);
+ return GNUNET_YES;
+ }
+ block.type = htonl (block.type);
/* FIXME are hashes in multihash map equal on all aquitectures? */
/* FIXME: keep return value of 'put' to possibly cancel!? */
- GNUNET_DHT_put (dht_handle, key, 10,
+ GNUNET_DHT_put (dht_handle, key,
+ DHT_REPLICATION_LEVEL,
GNUNET_DHT_RO_RECORD_ROUTE |
- GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, GNUNET_BLOCK_TYPE_TEST,
- sizeof (struct GNUNET_PeerIdentity),
- (const char *) &my_full_id,
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ GNUNET_BLOCK_TYPE_MESH_PEER_BY_TYPE,
+ sizeof (block),
+ (const char *) &block,
GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (),
APP_ANNOUNCE_TIME),
APP_ANNOUNCE_TIME, NULL, NULL);
/**
* Periodically announce what applications are provided by local clients
+ * (by regex)
+ *
+ * @param cls closure
+ * @param tc task context
+ */
+static void
+announce_regex (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct MeshClient *c = cls;
+ unsigned int i;
+
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ {
+ c->regex_announce_task = GNUNET_SCHEDULER_NO_TASK;
+ return;
+ }
+
+ DEBUG_DHT ("Starting PUT for regex\n");
+
+ for (i = 0; i < c->n_regex; i++)
+ {
+ regex_put (c->regexes[i]);
+ }
+ c->regex_announce_task =
+ GNUNET_SCHEDULER_add_delayed (APP_ANNOUNCE_TIME, &announce_regex, cls);
+ DEBUG_DHT ("Finished PUT for regex\n");
+
+ return;
+}
+
+
+/**
+ * Periodically announce what applications are provided by local clients
+ * (by type)
*
* @param cls closure
* @param tc task context
static void
announce_applications (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
{
announce_applications_task = GNUNET_SCHEDULER_NO_TASK;
return;
static void
announce_id (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ struct PBlock block;
+
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
{
announce_id_task = GNUNET_SCHEDULER_NO_TASK;
return;
*/
DEBUG_DHT ("DHT_put for ID %s started.\n", GNUNET_i2s (&my_full_id));
+ block.id = my_full_id;
+ block.type = htonl (0);
GNUNET_DHT_put (dht_handle, /* DHT handle */
&my_full_id.hashPubKey, /* Key to use */
- 10, /* Replication level */
+ DHT_REPLICATION_LEVEL, /* Replication level */
GNUNET_DHT_RO_RECORD_ROUTE | GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, /* DHT options */
- GNUNET_BLOCK_TYPE_TEST, /* Block type */
- sizeof (my_full_id), /* Size of the data */
- (char *) &my_full_id, /* Data itself */
+ GNUNET_BLOCK_TYPE_MESH_PEER, /* Block type */
+ sizeof (block), /* Size of the data */
+ (const char *) &block, /* Data itself */
GNUNET_TIME_UNIT_FOREVER_ABS, /* Data expiration */
GNUNET_TIME_UNIT_FOREVER_REL, /* Retry time */
NULL, /* Continuation */
}
+/******************************************************************************/
+/****************** GENERAL HELPER FUNCTIONS ************************/
+/******************************************************************************/
+
/**
- * Function to process paths received for a new peer addition. The recorded
- * paths form the initial tunnel, which can be optimized later.
- * Called on each result obtained for the DHT search.
- *
- * @param cls closure
- * @param exp when will this value expire
- * @param key key of the result
- * @param type type of the result
- * @param size number of bytes in data
- * @param data pointer to the result data
+ * Cancel an ongoing regex search in the DHT and free all resources.
+ *
+ * @param ctx The search context.
*/
static void
-dht_get_id_handler (void *cls, struct GNUNET_TIME_Absolute exp,
- const struct GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *get_path,
- unsigned int get_path_length,
- const struct GNUNET_PeerIdentity *put_path,
- unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
- size_t size, const void *data);
-
+regex_cancel_search(struct MeshRegexSearchContext *ctx)
+{
+ struct MeshRegexSearchInfo *info = ctx->info;
+ int i;
-/******************************************************************************/
-/****************** GENERAL HELPER FUNCTIONS ************************/
-/******************************************************************************/
+ GNUNET_free (info->description);
+ GNUNET_CONTAINER_multihashmap_iterate (info->dht_get_handles,
+ ®ex_cancel_dht_get, NULL);
+ GNUNET_CONTAINER_multihashmap_iterate (info->dht_get_results,
+ ®ex_free_result, NULL);
+ GNUNET_CONTAINER_multihashmap_destroy (info->dht_get_results);
+ GNUNET_CONTAINER_multihashmap_destroy (info->dht_get_handles);
+ info->t->regex_ctx = NULL;
+ for (i = 0; i < info->n_contexts; i++)
+ {
+ GNUNET_free (info->contexts[i]);
+ }
+ if (0 < info->n_contexts)
+ GNUNET_free (info->contexts);
+ if (0 < info->n_peers)
+ GNUNET_free (info->peers);
+ if (GNUNET_SCHEDULER_NO_TASK != info->timeout)
+ {
+ GNUNET_SCHEDULER_cancel(info->timeout);
+ }
+ GNUNET_free (info);
+}
/**
* Search for a tunnel by global ID using full PeerIdentities
{
struct MeshData *mdata = cls;
- if (GNUNET_SCHEDULER_REASON_SHUTDOWN == tc->reason)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
GNUNET_assert (NULL != mdata->reference_counter);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
data_descriptor_decrement_multicast (struct MeshData *mesh_data)
{
/* Make sure it's a multicast packet */
- GNUNET_assert (NULL != mesh_data->reference_counter);
+ GNUNET_assert (NULL != mesh_data->reference_counter); // FIXME URGENT #2499
if (0 == --(*(mesh_data->reference_counter)))
{
}
if (NULL == p)
{
- GNUNET_break (0);
+ GNUNET_break (0); // FIXME sometimes fails (testing disconnect?)
GNUNET_free (info->mesh_data->data);
GNUNET_free (info->mesh_data);
GNUNET_free (info);
" Starting DHT GET for peer %s\n", GNUNET_i2s (&id));
peer->dhtgetcls = path_info;
peer->dhtget = GNUNET_DHT_get_start (dht_handle, /* handle */
- GNUNET_BLOCK_TYPE_TEST, /* type */
- &id.hashPubKey, /* key to search */
- 10, /* replication level */
- GNUNET_DHT_RO_RECORD_ROUTE | GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, NULL, /* xquery */
- 0, /* xquery bits */
+ GNUNET_BLOCK_TYPE_MESH_PEER, /* type */
+ &id.hashPubKey, /* key to search */
+ DHT_REPLICATION_LEVEL, /* replication level */
+ GNUNET_DHT_RO_RECORD_ROUTE |
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ NULL, /* xquery */ // FIXME BLOOMFILTER
+ 0, /* xquery bits */ // FIXME BLOOMFILTER SIZE
&dht_get_id_handler, path_info);
}
/* Otherwise, there is no path but the DHT get is already started. */
unsigned int cost;
unsigned int i;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "peer_info_remove_path\n");
destroyed = 0;
p = peer->path_head;
while (NULL != p)
peer_info_connect (peer_d, peer->tunnels[i]);
}
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "peer_info_remove_path END\n");
}
unsigned int best_cost;
unsigned int cost;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "tunnel_add_peer\n");
GNUNET_PEER_resolve (peer->id, &id);
if (GNUNET_NO ==
GNUNET_CONTAINER_multihashmap_contains (t->peers, &id.hashPubKey))
/* Start a DHT get */
peer_info_connect (peer, t);
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "tunnel_add_peer END\n");
}
/**
{
struct GNUNET_PeerIdentity id;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "tunnel_add_path\n");
GNUNET_assert (0 != own_pos);
tree_add_path (t->tree, p, NULL, NULL);
if (own_pos < p->length - 1)
GNUNET_PEER_resolve (p->peers[own_pos + 1], &id);
tree_update_first_hops (t->tree, myid, &id);
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "tunnel_add_path END\n");
}
}
tree_destroy (t->tree);
+ if (NULL != t->regex_ctx)
+ regex_cancel_search (t->regex_ctx);
if (NULL != t->dht_get_type)
GNUNET_DHT_get_stop (t->dht_get_type);
if (GNUNET_SCHEDULER_NO_TASK != t->timeout_task)
{
struct MeshTunnel *t = cls;
- if (GNUNET_SCHEDULER_REASON_SHUTDOWN == tc->reason)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
t->timeout_task = GNUNET_SCHEDULER_NO_TASK;
tunnel_destroy (t);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "********* Queue send\n");
-
/* If queue is empty, send should have been cancelled */
if (NULL == queue)
{
peer_info_get
(&my_full_id),
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE));
+ // FIXME URGENT (GNUNET_NO?)
info = GNUNET_malloc (sizeof (struct MeshTransmissionDescriptor));
info->origin = &t->id;
info->peer = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received a path ACK msg [%s]\n",
GNUNET_i2s (&my_full_id));
msg = (struct GNUNET_MESH_PathACK *) message;
- t = tunnel_get (&msg->oid, msg->tid);
+ t = tunnel_get (&msg->oid, ntohl(msg->tid));
if (NULL == t)
{
/* TODO notify that we don't know the tunnel */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " don't know the tunnel %s [%X]!\n",
+ GNUNET_i2s (&msg->oid), ntohl(msg->tid));
return GNUNET_OK;
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " on tunnel %s [%X]\n",
+ GNUNET_i2s (&msg->oid), ntohl(msg->tid));
peer_info = peer_info_get (&msg->peer_id);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " by peer %s\n",
+ GNUNET_i2s (&msg->peer_id));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " via peer %s\n",
+ GNUNET_i2s (peer));
+
+ if (NULL != t->regex_ctx && t->regex_ctx->info->peer == peer_info->id)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "connect_by_string completed, stopping search\n");
+ regex_cancel_search (t->regex_ctx);
+ t->regex_ctx = NULL;
+ }
/* Add paths to peers? */
p = tree_get_path_to_peer (t->tree, peer_info->id);
static int
deregister_app (void *cls, const struct GNUNET_HashCode * key, void *value)
{
+ struct GNUNET_CONTAINER_MultiHashMap *h = cls;
GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (applications, key,
- value));
+ GNUNET_CONTAINER_multihashmap_remove (h, key, value));
return GNUNET_OK;
}
sizeof (struct GNUNET_MessageHeader);
char cbuf[size];
- if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
{
return;
}
unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
size_t size, const void *data)
{
- struct MeshPathInfo *path_info = cls;
+ struct MeshPathInfo *path_info = cls;
+ struct MeshPeerPath *p;
+ struct GNUNET_PeerIdentity pi;
+ int i;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got results from DHT!\n");
+ GNUNET_PEER_resolve (path_info->peer->id, &pi);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " for %s\n", GNUNET_i2s (&pi));
+
+ p = path_build_from_dht (get_path, get_path_length, put_path,
+ put_path_length);
+ path_add_to_peers (p, GNUNET_NO);
+ path_destroy(p);
+ for (i = 0; i < path_info->peer->ntunnels; i++)
+ {
+ tunnel_add_peer (path_info->peer->tunnels[i], path_info->peer);
+ peer_info_connect (path_info->peer, path_info->t);
+ }
+
+ return;
+}
+
+
+/**
+ * Function to process paths received for a new peer addition. The recorded
+ * paths form the initial tunnel, which can be optimized later.
+ * Called on each result obtained for the DHT search.
+ *
+ * @param cls closure
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param get_path path of the get request
+ * @param get_path_length lenght of get_path
+ * @param put_path path of the put request
+ * @param put_path_length length of the put_path
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ */
+static void
+dht_get_type_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data)
+{
+ const struct PBlock *pb = data;
+ const struct GNUNET_PeerIdentity *pi = &pb->id;
+ struct MeshTunnel *t = cls;
+ struct MeshPeerInfo *peer_info;
+ struct MeshPeerPath *p;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "got type DHT result!\n");
+ if (size != sizeof (struct PBlock))
+ {
+ GNUNET_break_op (0);
+ return;
+ }
+ if (ntohl(pb->type) != t->type)
+ {
+ GNUNET_break_op (0);
+ return;
+ }
+ GNUNET_assert (NULL != t->owner);
+ peer_info = peer_info_get (pi);
+ (void) GNUNET_CONTAINER_multihashmap_put (t->peers, &pi->hashPubKey,
+ peer_info,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
+
+ p = path_build_from_dht (get_path, get_path_length, put_path,
+ put_path_length);
+ path_add_to_peers (p, GNUNET_NO);
+ path_destroy(p);
+ tunnel_add_peer (t, peer_info);
+ peer_info_connect (peer_info, t);
+}
+
+
+/**
+ * Function called if the connect attempt to a peer found via
+ * connect_by_string times out. Try to connect to another peer, if any.
+ * Otherwise try to reconnect to the same peer.
+ *
+ * @param cls Closure (info about regex search).
+ * @param tc TaskContext.
+ */
+static void
+regex_connect_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct MeshRegexSearchInfo *info = cls;
+ struct MeshPeerInfo *peer_info;
+ GNUNET_PEER_Id id;
+ GNUNET_PEER_Id old;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Regex connect timeout\n");
+ info->timeout = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ {
+ return;
+ }
+
+ old = info->peer;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " timed out: %u\n", old);
+
+ if (0 < info->n_peers)
+ {
+ // Select next peer, put current in that spot.
+ id = info->peers[info->i_peer];
+ info->peers[info->i_peer] = info->peer;
+ info->i_peer = (info->i_peer + 1) % info->n_peers;
+ }
+ else
+ {
+ // Try to connect to same peer again.
+ id = info->peer;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " trying: %u\n", id);
+
+ peer_info = peer_info_get_short(id);
+ tunnel_add_peer (info->t, peer_info);
+ if (old != id)
+ tunnel_delete_peer (info->t, old);
+ peer_info_connect (peer_info, info->t);
+ info->timeout = GNUNET_SCHEDULER_add_delayed (CONNECT_TIMEOUT,
+ ®ex_connect_timeout,
+ info);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Regex connect timeout END\n");
+}
+
+
+/**
+ * Function to process DHT string to regex matching.
+ * Called on each result obtained for the DHT search.
+ *
+ * @param cls closure (search context)
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param get_path path of the get request (not used)
+ * @param get_path_length lenght of get_path (not used)
+ * @param put_path path of the put request (not used)
+ * @param put_path_length length of the put_path (not used)
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ */
+static void
+dht_get_string_accept_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
+ enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data)
+{
+ const struct MeshRegexAccept *block = data;
+ struct MeshRegexSearchContext *ctx = cls;
+ struct MeshRegexSearchInfo *info = ctx->info;
struct MeshPeerPath *p;
- struct GNUNET_PeerIdentity pi;
- int i;
+ struct MeshPeerInfo *peer_info;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got results from DHT!\n");
- GNUNET_PEER_resolve (path_info->peer->id, &pi);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " for %s\n", GNUNET_i2s (&pi));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got regex results from DHT!\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " for %s\n", info->description);
+ peer_info = peer_info_get(&block->id);
p = path_build_from_dht (get_path, get_path_length, put_path,
put_path_length);
path_add_to_peers (p, GNUNET_NO);
path_destroy(p);
- for (i = 0; i < path_info->peer->ntunnels; i++)
+
+ tunnel_add_peer (info->t, peer_info);
+ peer_info_connect (peer_info, info->t);
+ if (0 == info->peer)
{
- tunnel_add_peer (path_info->peer->tunnels[i], path_info->peer);
- peer_info_connect (path_info->peer, path_info->t);
+ info->peer = peer_info->id;
+ }
+ else
+ {
+ GNUNET_array_append (info->peers, info->n_peers, peer_info->id);
}
+ info->timeout = GNUNET_SCHEDULER_add_delayed (CONNECT_TIMEOUT,
+ ®ex_connect_timeout,
+ info);
+
return;
}
/**
- * Function to process paths received for a new peer addition. The recorded
- * paths form the initial tunnel, which can be optimized later.
+ * Function to process DHT string to regex matching..
* Called on each result obtained for the DHT search.
*
- * @param cls closure
+ * @param cls closure (search context)
* @param exp when will this value expire
* @param key key of the result
- * @param get_path path of the get request
- * @param get_path_length lenght of get_path
- * @param put_path path of the put request
- * @param put_path_length length of the put_path
+ * @param get_path path of the get request (not used)
+ * @param get_path_length lenght of get_path (not used)
+ * @param put_path path of the put request (not used)
+ * @param put_path_length length of the put_path (not used)
* @param type type of the result
* @param size number of bytes in data
* @param data pointer to the result data
+ *
+ * TODO: re-issue the request after certain time? cancel after X results?
*/
static void
-dht_get_type_handler (void *cls, struct GNUNET_TIME_Absolute exp,
- const struct GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *get_path,
- unsigned int get_path_length,
- const struct GNUNET_PeerIdentity *put_path,
- unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
- size_t size, const void *data)
+dht_get_string_handler (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data)
{
- const struct GNUNET_PeerIdentity *pi = data;
- struct MeshTunnel *t = cls;
- struct MeshPeerInfo *peer_info;
- struct MeshPeerPath *p;
+ const struct MeshRegexBlock *block = data;
+ struct MeshRegexSearchContext *ctx = cls;
+ struct MeshRegexSearchInfo *info = ctx->info;
+ void *copy;
+ char *proof;
+ size_t len;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "got type DHT result!\n");
- if (size != sizeof (struct GNUNET_PeerIdentity))
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "DHT GET STRING RETURNED RESULTS\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " key: %s\n", GNUNET_h2s (key));
+
+ copy = GNUNET_malloc (size);
+ memcpy (copy, data, size);
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put(info->dht_get_results, key, copy,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+ len = ntohl (block->n_proof);
+ proof = GNUNET_malloc (len + 1);
+ memcpy (proof, &block[1], len);
+ proof[len] = '\0';
+ if (GNUNET_OK != GNUNET_REGEX_check_proof (proof, key))
{
GNUNET_break_op (0);
return;
}
- GNUNET_assert (NULL != t->owner);
- peer_info = peer_info_get (pi);
- (void) GNUNET_CONTAINER_multihashmap_put (t->peers, &pi->hashPubKey,
- peer_info,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
-
- p = path_build_from_dht (get_path, get_path_length, put_path,
- put_path_length);
- path_add_to_peers (p, GNUNET_NO);
- path_destroy(p);
- tunnel_add_peer (t, peer_info);
- peer_info_connect (peer_info, t);
+ len = strlen (info->description);
+ if (len == ctx->position) // String processed
+ {
+ if (GNUNET_YES == ntohl (block->accepting))
+ {
+ regex_find_path(key, ctx);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " block not accepting!\n");
+ // FIXME REGEX this block not successful, wait for more? start timeout?
+ }
+ return;
+ }
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_MESH_regex_block_iterate (block, size,
+ ®ex_edge_iterator, ctx));
+ return;
}
-
/******************************************************************************/
/********************* MESH LOCAL HANDLES **************************/
/******************************************************************************/
{
struct MeshClient *c;
struct MeshClient *next;
+ unsigned int i;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "client disconnected\n");
if (client == NULL)
/* deregister clients applications */
if (NULL != c->apps)
{
- GNUNET_CONTAINER_multihashmap_iterate (c->apps, &deregister_app, NULL);
+ GNUNET_CONTAINER_multihashmap_iterate (c->apps, &deregister_app, c->apps);
GNUNET_CONTAINER_multihashmap_destroy (c->apps);
}
if (0 == GNUNET_CONTAINER_multihashmap_size (applications) &&
}
if (NULL != c->types)
GNUNET_CONTAINER_multihashmap_destroy (c->types);
+ for (i = 0; i < c->n_regex; i++)
+ {
+ GNUNET_free (c->regexes[i]);
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != c->regex_announce_task)
+ GNUNET_SCHEDULER_cancel (c->regex_announce_task);
next = c->next;
GNUNET_CONTAINER_DLL_remove (clients, clients_tail, c);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " CLIENT FREE at %p\n", c);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " app type: %u\n", at);
GNUNET_CRYPTO_hash (&at, sizeof (at), &hc);
/* store in clients hashmap */
- GNUNET_CONTAINER_multihashmap_put (c->apps, &hc, c,
+ GNUNET_CONTAINER_multihashmap_put (c->apps, &hc, (void *) (long) at,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
/* store in global hashmap, for announcements */
GNUNET_CONTAINER_multihashmap_put (applications, &hc, c,
}
+/**
+ * Handler for clients announcing available services by a regular expression.
+ *
+ * @param cls closure
+ * @param client identification of the client
+ * @param message the actual message, which includes messages the client wants
+ */
+static void
+handle_local_announce_regex (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct MeshClient *c;
+ char *regex;
+ size_t len;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "announce regex started\n");
+
+ /* Sanity check for client registration */
+ if (NULL == (c = client_get (client)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
+
+ len = ntohs (message->size) - sizeof(struct GNUNET_MessageHeader);
+ regex = GNUNET_malloc (len + 1);
+ memcpy (regex, &message[1], len);
+ regex[len] = '\0';
+ GNUNET_array_append (c->regexes, c->n_regex, regex);
+ if (GNUNET_SCHEDULER_NO_TASK == c->regex_announce_task)
+ {
+ c->regex_announce_task = GNUNET_SCHEDULER_add_now(&announce_regex, c);
+ }
+ else
+ {
+ regex_put(regex);
+ }
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "announce regex processed\n");
+}
+
+
/**
* Handler for requests of new tunnels
*
return;
}
+/**
+ * Handler for blacklist requests of peers in a tunnel
+ *
+ * @param cls closure
+ * @param client identification of the client
+ * @param message the actual message (PeerControl)
+ */
+static void
+handle_local_blacklist (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_MESH_PeerControl *peer_msg;
+ struct MeshClient *c;
+ struct MeshTunnel *t;
+ MESH_TunnelNumber tid;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a PEER BLACKLIST request\n");
+ /* Sanity check for client registration */
+ if (NULL == (c = client_get (client)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ peer_msg = (struct GNUNET_MESH_PeerControl *) message;
+
+ /* Sanity check for message size */
+ if (sizeof (struct GNUNET_MESH_PeerControl) != ntohs (peer_msg->header.size))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Tunnel exists? */
+ tid = ntohl (peer_msg->tunnel_id);
+ t = tunnel_get_by_local_id (c, tid);
+ if (NULL == t)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " on tunnel %X\n", t->id.tid);
+
+ GNUNET_array_append(t->blacklisted, t->nblacklisted,
+ GNUNET_PEER_intern(&peer_msg->peer));
+}
+
+
+/**
+ * Handler for unblacklist requests of peers in a tunnel
+ *
+ * @param cls closure
+ * @param client identification of the client
+ * @param message the actual message (PeerControl)
+ */
+static void
+handle_local_unblacklist (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_MESH_PeerControl *peer_msg;
+ struct MeshClient *c;
+ struct MeshTunnel *t;
+ MESH_TunnelNumber tid;
+ GNUNET_PEER_Id pid;
+ unsigned int i;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a PEER UNBLACKLIST request\n");
+ /* Sanity check for client registration */
+ if (NULL == (c = client_get (client)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ peer_msg = (struct GNUNET_MESH_PeerControl *) message;
+
+ /* Sanity check for message size */
+ if (sizeof (struct GNUNET_MESH_PeerControl) != ntohs (peer_msg->header.size))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Tunnel exists? */
+ tid = ntohl (peer_msg->tunnel_id);
+ t = tunnel_get_by_local_id (c, tid);
+ if (NULL == t)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " on tunnel %X\n", t->id.tid);
+
+ /* if peer is not known, complain */
+ pid = GNUNET_PEER_search (&peer_msg->peer);
+ if (0 == pid)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ /* search and remove from list */
+ for (i = 0; i < t->nblacklisted; i++)
+ {
+ if (t->blacklisted[i] == pid)
+ {
+ t->blacklisted[i] = t->blacklisted[t->nblacklisted - 1];
+ GNUNET_array_grow (t->blacklisted, t->nblacklisted, t->nblacklisted - 1);
+ return;
+ }
+ }
+
+ /* if peer hasn't been blacklisted, complain */
+ GNUNET_break (0);
+}
+
/**
* Handler for connection requests to new peers by type
GNUNET_h2s (&hash));
t->dht_get_type =
GNUNET_DHT_get_start (dht_handle,
- GNUNET_BLOCK_TYPE_TEST, &hash, 10,
+ GNUNET_BLOCK_TYPE_MESH_PEER_BY_TYPE,
+ &hash,
+ DHT_REPLICATION_LEVEL,
GNUNET_DHT_RO_RECORD_ROUTE |
- GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, NULL, 0,
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ NULL, 0,
&dht_get_type_handler, t);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
+/**
+ * Handler for connection requests to new peers by a string service description.
+ *
+ * @param cls closure
+ * @param client identification of the client
+ * @param message the actual message, which includes messages the client wants
+ */
+static void
+handle_local_connect_by_string (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_MESH_ConnectPeerByString *msg;
+ struct MeshRegexSearchContext *ctx;
+ struct MeshRegexSearchInfo *info;
+ struct GNUNET_DHT_GetHandle *get_h;
+ struct GNUNET_HashCode key;
+ struct MeshTunnel *t;
+ struct MeshClient *c;
+ MESH_TunnelNumber tid;
+ const char *string;
+ size_t size;
+ size_t len;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connect by string started\n");
+ msg = (struct GNUNET_MESH_ConnectPeerByString *) message;
+ size = htons (message->size);
+
+ /* Sanity check for client registration */
+ if (NULL == (c = client_get (client)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Message size sanity check */
+ if (sizeof(struct GNUNET_MESH_ConnectPeerByString) >= size)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Tunnel exists? */
+ tid = ntohl (msg->tunnel_id);
+ t = tunnel_get_by_local_id (c, tid);
+ if (NULL == t)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Does client own tunnel? */
+ if (t->owner->handle != client)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " on tunnel %s [%u]\n",
+ GNUNET_i2s(&my_full_id),
+ t->id.tid);
+
+ /* Only one connect_by_string allowed at the same time! */
+ /* FIXME: allow more, return handle at api level to cancel, document */
+ if (NULL != t->regex_ctx)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ /* Find string itself */
+ len = size - sizeof(struct GNUNET_MESH_ConnectPeerByString);
+ string = (const char *) &msg[1];
+
+ /* Initialize context */
+ size = GNUNET_REGEX_get_first_key(string, len, &key);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " consumed %u bits out of %u\n", size, len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " looking for %s\n", GNUNET_h2s (&key));
+
+ info = GNUNET_malloc (sizeof (struct MeshRegexSearchInfo));
+ info->t = t;
+ info->description = GNUNET_malloc (len + 1);
+ memcpy (info->description, string, len);
+ info->description[len] = '\0';
+ info->dht_get_handles = GNUNET_CONTAINER_multihashmap_create(32);
+ info->dht_get_results = GNUNET_CONTAINER_multihashmap_create(32);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " string: %s\n", info->description);
+
+ ctx = GNUNET_malloc (sizeof (struct MeshRegexSearchContext));
+ ctx->position = size;
+ ctx->info = info;
+ t->regex_ctx = ctx;
+
+ GNUNET_array_append (info->contexts, info->n_contexts, ctx);
+
+ /* Start search in DHT */
+ get_h = GNUNET_DHT_get_start (dht_handle, /* handle */
+ GNUNET_BLOCK_TYPE_MESH_REGEX, /* type */
+ &key, /* key to search */
+ DHT_REPLICATION_LEVEL, /* replication level */
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ NULL, /* xquery */ // FIXME BLOOMFILTER
+ 0, /* xquery bits */ // FIXME BLOOMFILTER SIZE
+ &dht_get_string_handler, ctx);
+
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put(info->dht_get_handles,
+ &key,
+ get_h,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
+
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connect by string processed\n");
+}
+
+
/**
* Handler for client traffic directed to one peer
*
static struct GNUNET_SERVER_MessageHandler client_handlers[] = {
{&handle_local_new_client, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT, 0},
+ {&handle_local_announce_regex, NULL,
+ GNUNET_MESSAGE_TYPE_MESH_LOCAL_ANNOUNCE_REGEX, 0},
{&handle_local_tunnel_create, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_CREATE,
sizeof (struct GNUNET_MESH_TunnelMessage)},
{&handle_local_connect_del, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_DEL,
sizeof (struct GNUNET_MESH_PeerControl)},
+ {&handle_local_blacklist, NULL,
+ GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_BLACKLIST,
+ sizeof (struct GNUNET_MESH_PeerControl)},
+ {&handle_local_unblacklist, NULL,
+ GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_UNBLACKLIST,
+ sizeof (struct GNUNET_MESH_PeerControl)},
{&handle_local_connect_by_type, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_ADD_BY_TYPE,
sizeof (struct GNUNET_MESH_ConnectPeerByType)},
+ {&handle_local_connect_by_string, NULL,
+ GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_ADD_BY_STRING, 0},
{&handle_local_unicast, NULL,
GNUNET_MESSAGE_TYPE_MESH_UNICAST, 0},
{&handle_local_to_origin, NULL,
projects / oweals / gnunet.git / blobdiff