/*
This file is part of GNUnet.
- (C) 2007, 2008, 2009, 2010 Christian Grothoff (and other contributing authors)
+ (C) 2007-2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
* @author Christian Grothoff
*/
#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_friends_lib.h"
#include "gnunet_constants.h"
#include "gnunet_core_service.h"
#include "gnunet_protocols.h"
#include "gnunet_peerinfo_service.h"
#include "gnunet_statistics_service.h"
#include "gnunet_transport_service.h"
-#include "gnunet_util_lib.h"
/**
/**
* For how long do we blacklist anyone under any cirumstances at most after a failed connection
- * attempt? This is the absolute maximum, regardless of what the calculation based on
+ * attempt? This is the absolute maximum, regardless of what the calculation based on
* exponential back-off returns.
*/
#define GREYLIST_AFTER_ATTEMPT_MAX GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 1)
* which we have HELLOs. So pretty much everyone. Maps peer identities
* to 'struct Peer *' values.
*/
-static struct GNUNET_CONTAINER_MultiHashMap *peers;
+static struct GNUNET_CONTAINER_MultiPeerMap *peers;
/**
* Handle for reporting statistics.
{
struct Peer *pos;
- pos = GNUNET_CONTAINER_multihashmap_get (peers, &pid->hashPubKey);
+ pos = GNUNET_CONTAINER_multipeermap_get (peers, pid);
if ((pos != NULL) && (pos->is_friend == GNUNET_YES))
return GNUNET_OK;
GNUNET_STATISTICS_update (stats, gettext_noop ("# peers blacklisted"), 1,
* @return GNUNET_YES (always: continue to iterate)
*/
static int
-free_peer (void *cls, const struct GNUNET_HashCode * pid, void *value)
+free_peer (void *cls, const struct GNUNET_PeerIdentity * pid, void *value)
{
struct Peer *pos = value;
GNUNET_break (GNUNET_NO == pos->is_connected);
GNUNET_break (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_remove (peers, pid, pos));
+ GNUNET_CONTAINER_multipeermap_remove (peers, pid, pos));
if (pos->hello_req != NULL)
GNUNET_CORE_notify_transmit_ready_cancel (pos->hello_req);
if (pos->hello_delay_task != GNUNET_SCHEDULER_NO_TASK)
return;
if (GNUNET_OK != is_connection_allowed (pos))
return;
- if (GNUNET_TIME_absolute_get_remaining (pos->greylisted_until).rel_value > 0)
+ if (GNUNET_TIME_absolute_get_remaining (pos->greylisted_until).rel_value_us > 0)
return;
if (GNUNET_YES == pos->is_friend)
rem = GREYLIST_AFTER_ATTEMPT_FRIEND;
if (GNUNET_YES == pos->is_connected)
return;
delay = GNUNET_TIME_absolute_get_remaining (next_connect_attempt);
- if (delay.rel_value > 0)
+ if (delay.rel_value_us > 0)
{
pos->attempt_connect_task = GNUNET_SCHEDULER_add_delayed (delay,
&do_attempt_connect,
pos->greylist_clean_task = GNUNET_SCHEDULER_NO_TASK;
rem = GNUNET_TIME_absolute_get_remaining (pos->greylisted_until);
- if (rem.rel_value == 0)
+ if (0 == rem.rel_value_us)
{
schedule_attempt_connect (pos);
}
if ((GNUNET_NO == pos->is_friend) && (GNUNET_NO == pos->is_connected) &&
(NULL == pos->hello))
{
- free_peer (NULL, &pos->pid.hashPubKey, pos);
+ free_peer (NULL, &pos->pid, pos);
return;
}
}
memcpy (ret->hello, hello, GNUNET_HELLO_size (hello));
}
GNUNET_break (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (peers, &peer->hashPubKey,
+ GNUNET_CONTAINER_multipeermap_put (peers, peer,
ret,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
return ret;
static void
setup_filter (struct Peer *peer)
{
+ struct GNUNET_HashCode hc;
+
/* 2^{-5} chance of not sending a HELLO to a peer is
* acceptably small (if the filter is 50% full);
* 64 bytes of memory are small compared to the rest
GNUNET_TIME_relative_to_absolute
(HELLO_ADVERTISEMENT_MIN_REPEAT_FREQUENCY);
/* never send a peer its own HELLO */
- GNUNET_CONTAINER_bloomfilter_add (peer->filter, &peer->pid.hashPubKey);
+ GNUNET_CRYPTO_hash (&peer->pid, sizeof (struct GNUNET_PeerIdentity), &hc);
+ GNUNET_CONTAINER_bloomfilter_add (peer->filter, &hc);
}
* Function to fill send buffer with HELLO.
*
* @param cls 'struct Peer' of the target peer
- * @param size number of bytes available in buf
+ * @param size number of bytes available in @a buf
* @param buf where the callee should write the message
- * @return number of bytes written to buf
+ * @return number of bytes written to @a buf
*/
static size_t
hello_advertising_ready (void *cls, size_t size, void *buf);
* @return GNUNET_YES (continue iteration)
*/
static int
-find_advertisable_hello (void *cls, const struct GNUNET_HashCode * pid, void *value)
+find_advertisable_hello (void *cls, const struct GNUNET_PeerIdentity * pid, void *value)
{
struct FindAdvHelloContext *fah = cls;
struct Peer *pos = value;
struct GNUNET_TIME_Relative rst_time;
+ struct GNUNET_HashCode hc;
size_t hs;
if (pos == fah->peer)
if (pos->hello == NULL)
return GNUNET_YES;
rst_time = GNUNET_TIME_absolute_get_remaining (pos->filter_expiration);
- if (0 == rst_time.rel_value)
+ if (0 == rst_time.rel_value_us)
{
/* time to discard... */
GNUNET_CONTAINER_bloomfilter_free (pos->filter);
hs = GNUNET_HELLO_size (pos->hello);
if (hs > fah->max_size)
return GNUNET_YES;
+ GNUNET_CRYPTO_hash (&fah->peer->pid, sizeof (struct GNUNET_PeerIdentity), &hc);
if (GNUNET_NO ==
GNUNET_CONTAINER_bloomfilter_test (pos->filter,
- &fah->peer->pid.hashPubKey))
+ &hc))
fah->result = pos;
return GNUNET_YES;
}
fah.result = NULL;
fah.max_size = GNUNET_SERVER_MAX_MESSAGE_SIZE - 1;
fah.next_adv = GNUNET_TIME_UNIT_FOREVER_REL;
- GNUNET_CONTAINER_multihashmap_iterate (peers, &find_advertisable_hello, &fah);
+ GNUNET_CONTAINER_multipeermap_iterate (peers, &find_advertisable_hello, &fah);
pl->hello_delay_task =
GNUNET_SCHEDULER_add_delayed (fah.next_adv, &schedule_next_hello, pl);
if (fah.result == NULL)
return;
next_want = GNUNET_HELLO_size (fah.result->hello);
delay = GNUNET_TIME_absolute_get_remaining (pl->next_hello_allowed);
- if (delay.rel_value == 0)
+ if (0 == delay.rel_value_us)
{
/* now! */
pl->hello_req =
* @return GNUNET_YES (always)
*/
static int
-reschedule_hellos (void *cls, const struct GNUNET_HashCode * pid, void *value)
+reschedule_hellos (void *cls, const struct GNUNET_PeerIdentity * pid, void *value)
{
struct Peer *peer = value;
struct Peer *skip = cls;
connection_count++;
GNUNET_STATISTICS_set (stats, gettext_noop ("# peers connected"),
connection_count, GNUNET_NO);
- pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
+ pos = GNUNET_CONTAINER_multipeermap_get (peers, peer);
if (NULL == pos)
{
pos = make_peer (peer, NULL, GNUNET_NO);
else
{
GNUNET_assert (GNUNET_NO == pos->is_connected);
- pos->greylisted_until.abs_value = 0; /* remove greylisting */
+ pos->greylisted_until.abs_value_us = 0; /* remove greylisting */
}
pos->is_connected = GNUNET_YES;
pos->connect_attempts = 0; /* re-set back-off factor */
GNUNET_STATISTICS_set (stats, gettext_noop ("# friends connected"),
friend_count, GNUNET_NO);
}
- reschedule_hellos (NULL, &peer->hashPubKey, pos);
+ reschedule_hellos (NULL, peer, pos);
}
* @return GNUNET_YES (continue to iterate)
*/
static int
-try_add_peers (void *cls, const struct GNUNET_HashCode * pid, void *value)
+try_add_peers (void *cls, const struct GNUNET_PeerIdentity * pid, void *value)
{
struct Peer *pos = value;
{
add_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_CONTAINER_multihashmap_iterate (peers, &try_add_peers, NULL);
+ GNUNET_CONTAINER_multipeermap_iterate (peers, &try_add_peers, NULL);
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Core told us that we disconnected from `%s'\n",
GNUNET_i2s (peer));
- pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
+ pos = GNUNET_CONTAINER_multipeermap_get (peers, peer);
if (NULL == pos)
{
GNUNET_break (0);
&have_address);
if (GNUNET_NO == have_address)
return; /* no point in advertising this one... */
- peer = GNUNET_CONTAINER_multihashmap_get (peers, &pid.hashPubKey);
+ peer = GNUNET_CONTAINER_multipeermap_get (peers, &pid);
if (NULL == peer)
{
peer = make_peer (&pid, hello, GNUNET_NO);
else if (peer->hello != NULL)
{
dt = GNUNET_HELLO_equals (peer->hello, hello, GNUNET_TIME_absolute_get ());
- if (dt.abs_value == GNUNET_TIME_UNIT_FOREVER_ABS.abs_value)
+ if (dt.abs_value_us == GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us)
return; /* nothing new here */
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
setup_filter (peer);
/* since we have a new HELLO to pick from, re-schedule all
* HELLO requests that are not bound by the HELLO send rate! */
- GNUNET_CONTAINER_multihashmap_iterate (peers, &reschedule_hellos, peer);
+ GNUNET_CONTAINER_multipeermap_iterate (peers, &reschedule_hellos, peer);
}
_("Error in communication with PEERINFO service: %s\n"),
err_msg);
GNUNET_PEERINFO_notify_cancel (peerinfo_notify);
- peerinfo_notify = GNUNET_PEERINFO_notify (cfg, &process_peer, NULL);
+ peerinfo_notify = GNUNET_PEERINFO_notify (cfg, GNUNET_NO, &process_peer, NULL);
return;
}
GNUNET_assert (peer != NULL);
if (hello == NULL)
{
/* free existing HELLO, if any */
- pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
+ pos = GNUNET_CONTAINER_multipeermap_get (peers, peer);
if (NULL != pos)
{
GNUNET_free_non_null (pos->hello);
if ((GNUNET_NO == pos->is_connected) && (GNUNET_NO == pos->is_friend) &&
(0 ==
GNUNET_TIME_absolute_get_remaining (pos->
- greylisted_until).rel_value))
- free_peer (NULL, &pos->pid.hashPubKey, pos);
+ greylisted_until).rel_value_us))
+ free_peer (NULL, &pos->pid, pos);
}
return;
}
consider_for_advertising (hello);
- pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
+ pos = GNUNET_CONTAINER_multipeermap_get (peers, peer);
if (pos == NULL)
pos = make_peer (peer, hello, GNUNET_NO);
GNUNET_assert (NULL != pos);
GNUNET_i2s (peer));
return;
}
- if (GNUNET_TIME_absolute_get_remaining (pos->greylisted_until).rel_value > 0)
+ if (GNUNET_TIME_absolute_get_remaining (pos->greylisted_until).rel_value_us > 0)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Already tried peer `%s' recently\n",
GNUNET_i2s (peer));
/**
- * Function called after GNUNET_CORE_connect has succeeded
+ * Function called after #GNUNET_CORE_connect has succeeded
* (or failed for good).
*
* @param cls closure
- * @param server handle to the server, NULL if we failed
* @param my_id ID of this peer, NULL if we failed
*/
static void
-core_init (void *cls, struct GNUNET_CORE_Handle *server,
+core_init (void *cls,
const struct GNUNET_PeerIdentity *my_id)
{
- if (server == NULL)
+ if (NULL == my_id)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_
GNUNET_SCHEDULER_shutdown ();
return;
}
- handle = server;
my_identity = *my_id;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "I am peer `%s'\n", GNUNET_i2s (my_id));
- peerinfo_notify = GNUNET_PEERINFO_notify (cfg, &process_peer, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "I am peer `%s'\n",
+ GNUNET_i2s (my_id));
+ peerinfo_notify = GNUNET_PEERINFO_notify (cfg, GNUNET_NO,
+ &process_peer, NULL);
}
/**
- * Read the friends file.
+ * Process friend found in FRIENDS file.
+ *
+ * @param cls pointer to an `unsigned int` to be incremented per friend found
+ * @param pid identity of the friend
*/
static void
-read_friends_file (const struct GNUNET_CONFIGURATION_Handle *cfg)
+handle_friend (void *cls,
+ const struct GNUNET_PeerIdentity *pid)
{
- char *fn;
- char *data;
- size_t pos;
- struct GNUNET_PeerIdentity pid;
- uint64_t fsize;
- struct GNUNET_CRYPTO_HashAsciiEncoded enc;
- unsigned int entries_found;
+ unsigned int *entries_found = cls;
struct Peer *fl;
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (cfg, "TOPOLOGY", "FRIENDS", &fn))
+ if (0 == memcmp (pid, &my_identity, sizeof (struct GNUNET_PeerIdentity)))
{
- GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
- "topology", "FRIENDS");
- return;
- }
- if ( (GNUNET_OK != GNUNET_DISK_file_test (fn)) &&
- (GNUNET_OK != GNUNET_DISK_fn_write (fn, NULL, 0,
- GNUNET_DISK_PERM_USER_READ |
- GNUNET_DISK_PERM_USER_WRITE)) )
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "write", fn);
- if (GNUNET_OK != GNUNET_DISK_file_size (fn,
- &fsize, GNUNET_NO, GNUNET_YES))
- {
- if ((friends_only) || (minimum_friend_count > 0))
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Could not read friends list `%s'\n"), fn);
- GNUNET_free (fn);
- return;
- }
- if (fsize == 0)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("Friends file `%s' is empty.\n"),
- fn);
- GNUNET_free (fn);
- return;
- }
- data = GNUNET_malloc_large (fsize);
- if (data == NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Failed to read friends list from `%s': out of memory\n"),
- fn);
- GNUNET_free (fn);
- return;
- }
- if (fsize != GNUNET_DISK_fn_read (fn, data, fsize))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Failed to read friends list from `%s'\n"), fn);
- GNUNET_free (fn);
- GNUNET_free (data);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Found myself `%s' in friend list (useless, ignored)\n"),
+ GNUNET_i2s (pid));
return;
}
+ (*entries_found)++;
+ fl = make_peer (pid, NULL, GNUNET_YES);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Found friend `%s' in configuration\n"),
+ GNUNET_i2s (&fl->pid));
+}
+
+
+/**
+ * Read the friends file.
+ */
+static void
+read_friends_file (const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+ unsigned int entries_found;
+
entries_found = 0;
- pos = 0;
- while ((pos < fsize) && isspace ((unsigned char) data[pos]))
- pos++;
- while ((fsize >= sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)) &&
- (pos <=
- fsize - sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)))
+ if (GNUNET_OK !=
+ GNUNET_FRIENDS_parse (cfg,
+ &handle_friend,
+ &entries_found))
{
- memcpy (&enc, &data[pos], sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded));
- if (!isspace
- ((unsigned char)
- enc.encoding[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1]))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Syntax error in topology specification at offset %llu, skipping bytes.\n"),
- (unsigned long long) pos);
- pos++;
- while ((pos < fsize) && (!isspace ((unsigned char) data[pos])))
- pos++;
- continue;
- }
- enc.encoding[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] = '\0';
- if (GNUNET_OK !=
- GNUNET_CRYPTO_hash_from_string ((char *) &enc, &pid.hashPubKey))
- {
+ if ((friends_only) || (minimum_friend_count > 0))
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Syntax error in topology specification at offset %llu, skipping bytes `%s'.\n"),
- (unsigned long long) pos, &enc);
- }
- else
- {
- if (0 != memcmp (&pid, &my_identity, sizeof (struct GNUNET_PeerIdentity)))
- {
- entries_found++;
- fl = make_peer (&pid, NULL, GNUNET_YES);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Found friend `%s' in configuration\n"),
- GNUNET_i2s (&fl->pid));
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Found myself `%s' in friend list (useless, ignored)\n"),
- GNUNET_i2s (&pid));
- }
- }
- pos = pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded);
- while ((pos < fsize) && isspace ((unsigned char) data[pos]))
- pos++;
+ _("Encountered errors parsing friends list!\n"));
}
- GNUNET_free (data);
- GNUNET_free (fn);
GNUNET_STATISTICS_update (stats, gettext_noop ("# friends in configuration"),
entries_found, GNUNET_NO);
if ((minimum_friend_count > entries_found) && (friends_only == GNUNET_NO))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Fewer friends specified than required by minimum friend count. Will only connect to friends.\n"));
+ _("Fewer friends specified than required by minimum friend count. Will only connect to friends.\n"));
}
if ((minimum_friend_count > target_connection_count) &&
(friends_only == GNUNET_NO))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _
- ("More friendly connections required than target total number of connections.\n"));
+ _("More friendly connections required than target total number of connections.\n"));
}
}
}
GNUNET_STATISTICS_update (stats, gettext_noop ("# HELLO messages received"),
1, GNUNET_NO);
- peer = GNUNET_CONTAINER_multihashmap_get (peers, &pid.hashPubKey);
+ peer = GNUNET_CONTAINER_multipeermap_get (peers, &pid);
if (NULL == peer)
{
if ((GNUNET_YES == friends_only) || (friend_count < minimum_friend_count))
struct Peer *pl = cls;
struct FindAdvHelloContext fah;
size_t want;
+ struct GNUNET_HashCode hc;
pl->hello_req = NULL;
GNUNET_assert (GNUNET_YES == pl->is_connected);
fah.result = NULL;
fah.max_size = size;
fah.next_adv = GNUNET_TIME_UNIT_FOREVER_REL;
- GNUNET_CONTAINER_multihashmap_iterate (peers, &find_advertisable_hello, &fah);
+ GNUNET_CONTAINER_multipeermap_iterate (peers, &find_advertisable_hello, &fah);
want = 0;
if (fah.result != NULL)
{
want = GNUNET_HELLO_size (fah.result->hello);
GNUNET_assert (want <= size);
memcpy (buf, fah.result->hello, want);
- GNUNET_CONTAINER_bloomfilter_add (fah.result->filter, &pl->pid.hashPubKey);
+ GNUNET_CRYPTO_hash (&pl->pid, sizeof (struct GNUNET_PeerIdentity), &hc);
+ GNUNET_CONTAINER_bloomfilter_add (fah.result->filter, &hc);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' with %u bytes", "HELLO",
(unsigned int) want);
GNUNET_STATISTICS_update (stats,
GNUNET_SCHEDULER_cancel (add_task);
add_task = GNUNET_SCHEDULER_NO_TASK;
}
- GNUNET_CONTAINER_multihashmap_iterate (peers, &free_peer, NULL);
- GNUNET_CONTAINER_multihashmap_destroy (peers);
+ GNUNET_CONTAINER_multipeermap_iterate (peers, &free_peer, NULL);
+ GNUNET_CONTAINER_multipeermap_destroy (peers);
peers = NULL;
if (stats != NULL)
{
{
static struct GNUNET_CORE_MessageHandler handlers[] = {
{&handle_encrypted_hello, GNUNET_MESSAGE_TYPE_HELLO, 0},
- {&handle_encrypted_hello, GNUNET_MESSAGE_TYPE_FRIEND_HELLO, 0},
{NULL, 0, 0}
};
unsigned long long opt;
"TARGET-CONNECTION-COUNT", &opt))
opt = 16;
target_connection_count = (unsigned int) opt;
- peers = GNUNET_CONTAINER_multihashmap_create (target_connection_count * 2, GNUNET_NO);
+ peers = GNUNET_CONTAINER_multipeermap_create (target_connection_count * 2, GNUNET_NO);
if ((friends_only == GNUNET_YES) || (minimum_friend_count > 0))
read_friends_file (cfg);