*/
#include "platform.h"
-#include "gnunet_crypto_lib.h"
-#include "gnunet_container_lib.h"
-#include "gnunet_disk_lib.h"
+#include "gnunet_util_lib.h"
#include "gnunet_hello_lib.h"
#include "gnunet_protocols.h"
-#include "gnunet_service_lib.h"
#include "gnunet_statistics_service.h"
#include "peerinfo.h"
*/
#define DATA_HOST_CLEAN_FREQ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 60)
+
/**
* In-memory cache of known hosts.
*/
/**
* Notify all clients in the notify list about the
* given host entry changing.
+ *
+ * @param he entry of the host for which we generate a notification
+ * @return generated notification message
*/
static struct InfoMessage *
make_info_message (const struct HostEntry *he)
* Address iterator that causes expired entries to be discarded.
*
* @param cls pointer to the current time
- * @param tname name of the transport
+ * @param address the address
* @param expiration expiration time for the address
- * @param addr the address
- * @param addrlen length of addr in bytes
* @return GNUNET_NO if expiration smaller than the current time
*/
static int
-discard_expired (void *cls,
- const char *tname,
- struct GNUNET_TIME_Absolute expiration,
- const void *addr, uint16_t addrlen)
+discard_expired (void *cls, const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_TIME_Absolute expiration)
{
const struct GNUNET_TIME_Absolute *now = cls;
if (now->abs_value > expiration.abs_value)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Removing expired address of transport `%s'\n"), tname);
+ _("Removing expired address of transport `%s'\n"),
+ address->transport_name);
return GNUNET_NO;
}
return GNUNET_OK;
/**
* Get the filename under which we would store the GNUNET_HELLO_Message
* for the given host and protocol.
+ *
+ * @param id peer for which we need the filename for the HELLO
* @return filename of the form DIRECTORY/HOSTID
*/
static char *
/**
- * Broadcast information about the given entry to all
+ * Broadcast information about the given entry to all
* clients that care.
*
* @param entry entry to broadcast about
struct InfoMessage *msg;
msg = make_info_message (entry);
- GNUNET_SERVER_notification_context_broadcast (notify_list,
- &msg->header, GNUNET_NO);
+ GNUNET_SERVER_notification_context_broadcast (notify_list, &msg->header,
+ GNUNET_NO);
GNUNET_free (msg);
}
+/**
+ * Try to read the HELLO in the given filename and discard expired addresses.
+ *
+ * @param fn name of the file
+ * @return HELLO of the file, NULL on error
+ */
+static struct GNUNET_HELLO_Message *
+read_host_file (const char *fn)
+{
+ char buffer[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1] GNUNET_ALIGN;
+ const struct GNUNET_HELLO_Message *hello;
+ struct GNUNET_HELLO_Message *hello_clean;
+ int size;
+ struct GNUNET_TIME_Absolute now;
+
+ if (GNUNET_YES != GNUNET_DISK_file_test (fn))
+ return NULL;
+ size = GNUNET_DISK_fn_read (fn, buffer, sizeof (buffer));
+ hello = (const struct GNUNET_HELLO_Message *) buffer;
+ if ((size < sizeof (struct GNUNET_MessageHeader)) ||
+ (size != ntohs ((((const struct GNUNET_MessageHeader *) hello)->size)))
+ || (size != GNUNET_HELLO_size (hello)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Failed to parse HELLO in file `%s'\n"),
+ fn);
+ return NULL;
+ }
+ now = GNUNET_TIME_absolute_get ();
+ hello_clean =
+ GNUNET_HELLO_iterate_addresses (hello, GNUNET_YES, &discard_expired,
+ &now);
+ return hello_clean;
+}
+
+
/**
* Add a host to the list.
*
add_host_to_known_hosts (const struct GNUNET_PeerIdentity *identity)
{
struct HostEntry *entry;
- char buffer[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1];
- const struct GNUNET_HELLO_Message *hello;
- struct GNUNET_HELLO_Message *hello_clean;
- int size;
- struct GNUNET_TIME_Absolute now;
char *fn;
entry = GNUNET_CONTAINER_multihashmap_get (hostmap, &identity->hashPubKey);
if (entry != NULL)
return;
- GNUNET_STATISTICS_update (stats,
- gettext_noop ("# peers known"), 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (stats, gettext_noop ("# peers known"), 1,
+ GNUNET_NO);
entry = GNUNET_malloc (sizeof (struct HostEntry));
entry->identity = *identity;
-
+ GNUNET_CONTAINER_multihashmap_put (hostmap, &identity->hashPubKey, entry,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
fn = get_host_filename (identity);
- if (GNUNET_DISK_file_test (fn) == GNUNET_YES)
- {
- size = GNUNET_DISK_fn_read (fn, buffer, sizeof (buffer));
- hello = (const struct GNUNET_HELLO_Message *) buffer;
- if ((size < sizeof (struct GNUNET_MessageHeader)) ||
- (size != ntohs ((((const struct GNUNET_MessageHeader *) hello)->size)))
- || (size != GNUNET_HELLO_size (hello)))
- {
- GNUNET_break (0);
- if (0 != UNLINK (fn))
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", fn);
- }
- else
- {
- now = GNUNET_TIME_absolute_get ();
- hello_clean = GNUNET_HELLO_iterate_addresses (hello,
- GNUNET_YES,
- &discard_expired, &now);
- entry->hello = hello_clean;
- }
- }
+ entry->hello = read_host_file (fn);
GNUNET_free (fn);
- GNUNET_CONTAINER_multihashmap_put (hostmap,
- &identity->hashPubKey,
- entry,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
notify_all (entry);
}
/**
* Remove a file that should not be there. LOG
* success or failure.
+ *
+ * @param fullname name of the file to remove
*/
static void
remove_garbage (const char *fullname)
("File `%s' in directory `%s' does not match naming convention. "
"Removed.\n"), fullname, networkIdDirectory);
else
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR |
- GNUNET_ERROR_TYPE_BULK, "unlink", fullname);
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "unlink", fullname);
}
+/**
+ * Function that is called on each HELLO file in a particular directory.
+ * Try to parse the file and add the HELLO to our list.
+ *
+ * @param cls pointer to 'unsigned int' to increment for each file, or NULL
+ * if the file is from a read-only, read-once resource directory
+ * @param fullname name of the file to parse
+ * @return GNUNET_OK (continue iteration)
+ */
static int
hosts_directory_scan_callback (void *cls, const char *fullname)
{
unsigned int *matched = cls;
struct GNUNET_PeerIdentity identity;
const char *filename;
+ struct HostEntry *entry;
+ struct GNUNET_HELLO_Message *hello;
if (GNUNET_DISK_file_test (fullname) != GNUNET_YES)
return GNUNET_OK; /* ignore non-files */
if (strlen (fullname) < sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded))
{
- remove_garbage (fullname);
+ if (NULL != matched)
+ remove_garbage (fullname);
return GNUNET_OK;
}
filename =
sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1];
if (filename[-1] != DIR_SEPARATOR)
{
- remove_garbage (fullname);
+ if (NULL != matched)
+ remove_garbage (fullname);
return GNUNET_OK;
}
- if (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (filename,
- &identity.hashPubKey))
+ if (GNUNET_OK !=
+ GNUNET_CRYPTO_hash_from_string (filename, &identity.hashPubKey))
{
- remove_garbage (fullname);
+ if (NULL != (hello = read_host_file (filename)))
+ {
+ entry = GNUNET_malloc (sizeof (struct HostEntry));
+ if (GNUNET_OK ==
+ GNUNET_HELLO_get_id (hello,
+ &entry->identity))
+ {
+ GNUNET_CONTAINER_multihashmap_put (hostmap, &entry->identity.hashPubKey, entry,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+ entry->hello = hello;
+ notify_all (entry);
+ return GNUNET_OK;
+ }
+ GNUNET_free (entry);
+ }
+ if (NULL != matched)
+ remove_garbage (fullname);
return GNUNET_OK;
}
- (*matched)++;
+ if (NULL != matched)
+ (*matched)++;
add_host_to_known_hosts (&identity);
return GNUNET_OK;
}
/**
* Call this method periodically to scan data/hosts for new hosts.
+ *
+ * @param cls unused
+ * @param tc scheduler context, aborted if reason is shutdown
*/
static void
cron_scan_directory_data_hosts (void *cls,
count = 0;
if (GNUNET_SYSERR == GNUNET_DISK_directory_create (networkIdDirectory))
{
- GNUNET_SCHEDULER_add_delayed (DATA_HOST_FREQ,
- &cron_scan_directory_data_hosts, NULL);
+ GNUNET_SCHEDULER_add_delayed_with_priority (DATA_HOST_FREQ,
+ GNUNET_SCHEDULER_PRIORITY_IDLE,
+ &cron_scan_directory_data_hosts, NULL);
return;
}
GNUNET_DISK_directory_scan (networkIdDirectory,
&hosts_directory_scan_callback, &count);
if ((0 == count) && (0 == (++retries & 31)))
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING |
- GNUNET_ERROR_TYPE_BULK,
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING | GNUNET_ERROR_TYPE_BULK,
_("Still no peers found in `%s'!\n"), networkIdDirectory);
- GNUNET_SCHEDULER_add_delayed (DATA_HOST_FREQ,
- &cron_scan_directory_data_hosts, NULL);
+ GNUNET_SCHEDULER_add_delayed_with_priority (DATA_HOST_FREQ,
+ GNUNET_SCHEDULER_PRIORITY_IDLE,
+ &cron_scan_directory_data_hosts,
+ NULL);
}
if (GNUNET_OK == GNUNET_DISK_directory_create_for_file (fn))
{
if (GNUNET_SYSERR ==
- GNUNET_DISK_fn_write (fn,
- host->hello,
- GNUNET_HELLO_size (host->hello),
+ GNUNET_DISK_fn_write (fn, host->hello, GNUNET_HELLO_size (host->hello),
GNUNET_DISK_PERM_USER_READ |
GNUNET_DISK_PERM_USER_WRITE |
GNUNET_DISK_PERM_GROUP_READ |
}
-
/**
* Do transmit info about peer to given host.
*
struct HostEntry *pos = value;
struct InfoMessage *im;
uint16_t hs;
- char buf[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1];
+ char buf[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1] GNUNET_ALIGN;
hs = 0;
im = (struct InfoMessage *) buf;
/**
* @brief delete expired HELLO entries in data/hosts/
+ *
+ * @param cls pointer to current time (struct GNUNET_TIME_Absolute)
+ * @param fn filename to test to see if the HELLO expired
+ * @return GNUNET_OK (continue iteration)
*/
static int
discard_hosts_helper (void *cls, const char *fn)
{
struct GNUNET_TIME_Absolute *now = cls;
- char buffer[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1];
+ char buffer[GNUNET_SERVER_MAX_MESSAGE_SIZE - 1] GNUNET_ALIGN;
const struct GNUNET_HELLO_Message *hello;
struct GNUNET_HELLO_Message *new_hello;
int size;
return GNUNET_OK;
}
hello = (const struct GNUNET_HELLO_Message *) buffer;
- new_hello = GNUNET_HELLO_iterate_addresses (hello,
- GNUNET_YES,
- &discard_expired, now);
+ new_hello =
+ GNUNET_HELLO_iterate_addresses (hello, GNUNET_YES, &discard_expired, now);
if (new_hello != NULL)
{
- GNUNET_DISK_fn_write (fn,
- new_hello,
- GNUNET_HELLO_size (new_hello),
+ GNUNET_DISK_fn_write (fn, new_hello, GNUNET_HELLO_size (new_hello),
GNUNET_DISK_PERM_USER_READ |
GNUNET_DISK_PERM_USER_WRITE |
GNUNET_DISK_PERM_GROUP_READ |
/**
- * Call this method periodically to scan data/hosts for new hosts.
+ * Call this method periodically to scan data/hosts for ancient
+ * HELLOs to expire.
+ *
+ * @param cls unused
+ * @param tc scheduler context, aborted if reason is shutdown
*/
static void
cron_clean_data_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
return;
now = GNUNET_TIME_absolute_get ();
GNUNET_DISK_directory_scan (networkIdDirectory, &discard_hosts_helper, &now);
- GNUNET_SCHEDULER_add_delayed (DATA_HOST_CLEAN_FREQ,
- &cron_clean_data_hosts, NULL);
+ GNUNET_SCHEDULER_add_delayed (DATA_HOST_CLEAN_FREQ, &cron_clean_data_hosts,
+ NULL);
}
* @param message the actual message
*/
static void
-handle_hello (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_hello (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
const struct GNUNET_HELLO_Message *hello;
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
-#if DEBUG_PEERINFO
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "`%s' message received for peer `%4s'\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s' message received for peer `%4s'\n",
"HELLO", GNUNET_i2s (&pid));
-#endif
bind_address (&pid, hello);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
* @param message the actual message
*/
static void
-handle_get (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_get (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
const struct ListPeerMessage *lpm;
lpm = (const struct ListPeerMessage *) message;
GNUNET_break (0 == ntohl (lpm->reserved));
-#if DEBUG_PEERINFO
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "`%s' message received for peer `%4s'\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s' message received for peer `%4s'\n",
"GET", GNUNET_i2s (&lpm->peer));
-#endif
tc = GNUNET_SERVER_transmit_context_create (client);
- GNUNET_CONTAINER_multihashmap_get_multiple (hostmap,
- &lpm->peer.hashPubKey,
+ GNUNET_CONTAINER_multihashmap_get_multiple (hostmap, &lpm->peer.hashPubKey,
&add_to_tc, tc);
GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
GNUNET_MESSAGE_TYPE_PEERINFO_INFO_END);
* @param message the actual message
*/
static void
-handle_get_all (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_get_all (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
struct GNUNET_SERVER_TransmitContext *tc;
-#if DEBUG_PEERINFO
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s' message received\n", "GET_ALL");
-#endif
tc = GNUNET_SERVER_transmit_context_create (client);
GNUNET_CONTAINER_multihashmap_iterate (hostmap, &add_to_tc, tc);
GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
}
+/**
+ * FIXME.
+ */
static int
do_notify_entry (void *cls, const GNUNET_HashCode * key, void *value)
{
struct InfoMessage *msg;
msg = make_info_message (he);
- GNUNET_SERVER_notification_context_unicast (notify_list,
- client, &msg->header, GNUNET_NO);
+ GNUNET_SERVER_notification_context_unicast (notify_list, client, &msg->header,
+ GNUNET_NO);
GNUNET_free (msg);
return GNUNET_YES;
}
* @param message the actual message
*/
static void
-handle_notify (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_notify (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
-#if DEBUG_PEERINFO
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s' message received\n", "NOTIFY");
-#endif
+ GNUNET_SERVER_client_mark_monitor (client);
GNUNET_SERVER_notification_context_add (notify_list, client);
GNUNET_CONTAINER_multihashmap_iterate (hostmap, &do_notify_entry, client);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
+/**
+ * FIXME.
+ */
static int
free_host_entry (void *cls, const GNUNET_HashCode * key, void *value)
{
return GNUNET_YES;
}
+
/**
* Clean up our state. Called during shutdown.
*
/**
- * Process statistics requests.
+ * Start up peerinfo service.
*
* @param cls closure
* @param server the initialized server
* @param cfg configuration to use
*/
static void
-run (void *cls,
- struct GNUNET_SERVER_Handle *server,
+run (void *cls, struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
sizeof (struct GNUNET_MessageHeader)},
{NULL, NULL, 0, 0}
};
+ char *peerdir;
+ char *ip;
hostmap = GNUNET_CONTAINER_multihashmap_create (1024);
stats = GNUNET_STATISTICS_create ("peerinfo", cfg);
notify_list = GNUNET_SERVER_notification_context_create (server, 0);
GNUNET_assert (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_filename (cfg,
- "peerinfo",
+ GNUNET_CONFIGURATION_get_value_filename (cfg, "peerinfo",
"HOSTS",
&networkIdDirectory));
GNUNET_DISK_directory_create (networkIdDirectory);
&cron_scan_directory_data_hosts, NULL);
GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_IDLE,
&cron_clean_data_hosts, NULL);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
- &shutdown_task, NULL);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
+ NULL);
GNUNET_SERVER_add_handlers (server, handlers);
+ ip = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR);
+ GNUNET_asprintf (&peerdir,
+ "%shellos",
+ ip);
+ GNUNET_free (ip);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Importing HELLOs from `%s'\n"),
+ peerdir);
+ GNUNET_DISK_directory_scan (peerdir,
+ &hosts_directory_scan_callback, NULL);
+ GNUNET_free (peerdir);
}
/**
- * The main function for the statistics service.
+ * The main function for the peerinfo service.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
{
int ret;
- ret = (GNUNET_OK ==
- GNUNET_SERVICE_run (argc,
- argv,
- "peerinfo",
- GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
+ ret =
+ (GNUNET_OK ==
+ GNUNET_SERVICE_run (argc, argv, "peerinfo", GNUNET_SERVICE_OPTION_NONE,
+ &run, NULL)) ? 0 : 1;
GNUNET_free_non_null (networkIdDirectory);
return ret;
}
projects / oweals / gnunet.git / blobdiff