#include "ats.h"
+#define INTERFACE_PROCESSING_INTERVALL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
+
+#define NOT_FOUND 0
+
/**
* Message in linked list we should send to the ATS service. The
* actual binary message follows this struct.
};
+struct ATS_Network
+{
+ struct ATS_Network * next;
+
+ struct ATS_Network * prev;
+
+ struct sockaddr *network;
+ struct sockaddr *netmask;
+ socklen_t length;
+};
+
+/**
+ * Handle for address suggestions
+ */
+struct GNUNET_ATS_SuggestHandle
+{
+ struct GNUNET_ATS_SuggestHandle *prev;
+ struct GNUNET_ATS_SuggestHandle *next;
+ struct GNUNET_PeerIdentity id;
+};
+
+
/**
* Handle to the ATS subsystem for bandwidth/transport scheduling information.
*/
*/
void *suggest_cb_cls;
+ /**
+ * DLL for suggestions head
+ */
+ struct GNUNET_ATS_SuggestHandle *sug_head;
+
+ /**
+ * DLL for suggestions tail
+ */
+ struct GNUNET_ATS_SuggestHandle *sug_tail;
+
/**
* Connection to ATS service.
*/
*/
struct GNUNET_CLIENT_TransmitHandle *th;
+ /**
+ * Head of network list
+ */
+ struct ATS_Network * net_head;
+
+ /**
+ * Tail of network list
+ */
+ struct ATS_Network * net_tail;
+
/**
* Array of session objects (we need to translate them to numbers and back
* for the protocol; the offset in the array is the session number on the
*/
GNUNET_SCHEDULER_TaskIdentifier task;
+ /**
+ * Task retrieving interfaces from the system
+ */
+ GNUNET_SCHEDULER_TaskIdentifier interface_task;
+
+
/**
* Size of the session array.
*/
force_reconnect (struct GNUNET_ATS_SchedulingHandle *sh)
{
sh->reconnect = GNUNET_NO;
- GNUNET_CLIENT_disconnect (sh->client, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (sh->client);
sh->client = NULL;
sh->task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &reconnect_task,
ret += p->size;
size -= p->size;
GNUNET_CONTAINER_DLL_remove (sh->pending_head, sh->pending_tail, p);
- if (GNUNET_YES == p->is_init)
- GNUNET_CLIENT_receive (sh->client, &process_ats_message, sh,
- GNUNET_TIME_UNIT_FOREVER_REL);
GNUNET_free (p);
}
do_transmit (sh);
find_session (struct GNUNET_ATS_SchedulingHandle *sh, uint32_t session_id,
const struct GNUNET_PeerIdentity *peer)
{
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Find session %u from peer %s in %p\n",
+ (unsigned int) session_id, GNUNET_i2s (peer), sh);
+
if (session_id >= sh->session_array_size)
{
GNUNET_break (0);
return NULL;
}
- if (session_id == 0)
+ if (0 == session_id)
+ return NULL;
+ if (sh->session_array[session_id].session == NULL)
+ {
+ GNUNET_break (0 ==
+ memcmp (peer, &sh->session_array[session_id].peer,
+ sizeof (struct GNUNET_PeerIdentity)));
return NULL;
+ }
+
if (0 !=
memcmp (peer, &sh->session_array[session_id].peer,
sizeof (struct GNUNET_PeerIdentity)))
sh->reconnect = GNUNET_YES;
return NULL;
}
+ /* This check exploits the fact that first field of a session object
+ * is peer identity.
+ */
+ if (0 !=
+ memcmp (peer, sh->session_array[session_id].session,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Session %p belongs to peer `%s'\n",
+ sh->session_array[session_id].session, GNUNET_i2s_full ((struct GNUNET_PeerIdentity *) &sh->session_array[session_id].peer));
+/*
+ GNUNET_break (0);
+ sh->reconnect = GNUNET_YES;
+ return NULL;
+*/
+ }
return sh->session_array[session_id].session;
}
/**
- * Get the ID for the given session object. If we do not have an ID for
- * the given session object, allocate one.
+ * Get an available session ID for the given session object.
*
* @param sh our handle
* @param session session object
* @return the session id
*/
static uint32_t
-get_session_id (struct GNUNET_ATS_SchedulingHandle *sh, struct Session *session,
+find_empty_session_slot (struct GNUNET_ATS_SchedulingHandle *sh, struct Session *session,
const struct GNUNET_PeerIdentity *peer)
{
unsigned int i;
unsigned int f;
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Get session ID for session %p from peer %s in %p\n", session,
+ GNUNET_i2s (peer), sh);
+
if (NULL == session)
- return 0;
+ return NOT_FOUND;
f = 0;
for (i = 1; i < sh->session_array_size; i++)
{
- if (session == sh->session_array[i].session)
- {
- GNUNET_assert (0 ==
- memcmp (peer, &sh->session_array[i].peer,
- sizeof (struct GNUNET_PeerIdentity)));
- return i;
- }
if ((f == 0) && (sh->session_array[i].slot_used == GNUNET_NO))
f = i;
}
sh->session_array[f].session = session;
sh->session_array[f].peer = *peer;
sh->session_array[f].slot_used = GNUNET_YES;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Assigning session ID %u for session %p of peer %s in %p\n", f,
+ session, GNUNET_i2s (peer), sh);
+
return f;
}
+/**
+ * Get the ID for the given session object.
+ *
+ * @param sh our handle
+ * @param session session object
+ * @param peer peer the session belongs to
+ * @return the session id or NOT_FOUND for error
+ */
+static uint32_t
+find_session_id (struct GNUNET_ATS_SchedulingHandle *sh, struct Session *session,
+ const struct GNUNET_PeerIdentity *peer)
+{
+ unsigned int i;
+ char * p2;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Get session ID for session %p from peer %s in %p\n", session,
+ GNUNET_i2s (peer), sh);
+
+ if (NULL == session)
+ return NOT_FOUND;
+ for (i = 1; i < sh->session_array_size; i++)
+ {
+ if (session == sh->session_array[i].session)
+ {
+ if (0 != memcmp (peer, &sh->session_array[i].peer,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ p2 = strdup (GNUNET_i2s (&sh->session_array[i].peer));
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "ats-scheduling-api",
+ "Session %p did not match: old session was for peer `%s' new session is for `%s'\n",
+ session, GNUNET_i2s (peer), p2);
+ GNUNET_free (p2);
+ return NOT_FOUND;
+ }
+ return i;
+ }
+ }
+ return NOT_FOUND;
+}
+
+
/**
* Remove the session of the given session ID from the session
* table (it is no longer valid).
remove_session (struct GNUNET_ATS_SchedulingHandle *sh, uint32_t session_id,
const struct GNUNET_PeerIdentity *peer)
{
+ GNUNET_assert (peer != NULL);
+ GNUNET_assert (sh != NULL);
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Release sessionID %u from peer %s in %p\n",
+ (unsigned int) session_id, GNUNET_i2s (peer), sh);
+
if (0 == session_id)
return;
+
GNUNET_assert (session_id < sh->session_array_size);
GNUNET_assert (GNUNET_YES == sh->session_array[session_id].slot_used);
- GNUNET_assert (0 ==
- memcmp (peer, &sh->session_array[session_id].peer,
- sizeof (struct GNUNET_PeerIdentity)));
+ GNUNET_assert (0 == memcmp (peer,
+ &sh->session_array[session_id].peer,
+ sizeof (struct GNUNET_PeerIdentity)));
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Session %p for peer `%s' removed from slot %u \n",
+ sh->session_array[session_id].session,
+ GNUNET_i2s (peer),
+ session_id);
sh->session_array[session_id].session = NULL;
+
}
release_session (struct GNUNET_ATS_SchedulingHandle *sh, uint32_t session_id,
const struct GNUNET_PeerIdentity *peer)
{
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "Release sessionID %u from peer %s in %p\n",
+ (unsigned int) session_id, GNUNET_i2s (peer), sh);
+
if (session_id >= sh->session_array_size)
{
GNUNET_break (0);
sh->reconnect = GNUNET_YES;
return;
}
+
+ /* this slot should have been removed from remove_session before */
+ GNUNET_assert (sh->session_array[session_id].session == NULL);
+
if (0 !=
memcmp (peer, &sh->session_array[session_id].peer,
sizeof (struct GNUNET_PeerIdentity)))
struct GNUNET_ATS_SchedulingHandle *sh = cls;
const struct AddressSuggestionMessage *m;
const struct GNUNET_ATS_Information *atsi;
- const char *address;
+ const char *plugin_address;
const char *plugin_name;
- uint16_t address_length;
+ uint16_t plugin_address_length;
uint16_t plugin_name_length;
uint32_t ats_count;
+ struct GNUNET_HELLO_Address address;
+ struct Session *s;
if (NULL == msg)
{
}
m = (const struct AddressSuggestionMessage *) msg;
ats_count = ntohl (m->ats_count);
- address_length = ntohs (m->address_length);
+ plugin_address_length = ntohs (m->address_length);
atsi = (const struct GNUNET_ATS_Information *) &m[1];
- address = (const char *) &atsi[ats_count];
- plugin_name = &address[address_length];
+ plugin_address = (const char *) &atsi[ats_count];
+ plugin_name = &plugin_address[plugin_address_length];
plugin_name_length = ntohs (m->plugin_name_length);
- if ((address_length + plugin_name_length +
+ if ((plugin_address_length + plugin_name_length +
ats_count * sizeof (struct GNUNET_ATS_Information) +
sizeof (struct AddressSuggestionMessage) != ntohs (msg->size)) ||
(ats_count >
force_reconnect (sh);
return;
}
- sh->suggest_cb (sh->suggest_cb_cls, &m->peer, plugin_name, address,
- address_length, find_session (sh, ntohl (m->session_id),
- &m->peer), m->bandwidth_out,
+ uint32_t session_id = ntohl (m->session_id);
+
+ if (session_id == 0)
+ s = NULL;
+ else
+ {
+ s = find_session (sh, session_id, &m->peer);
+ if (s == NULL)
+ {
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "ATS tries to use outdated session `%s'\n",
+ GNUNET_i2s (&m->peer));
+ GNUNET_CLIENT_receive (sh->client, &process_ats_message, sh,
+ GNUNET_TIME_UNIT_FOREVER_REL);
+ return;
+ }
+ }
+
+ if (NULL == sh->suggest_cb)
+ return;
+
+ address.peer = m->peer;
+ address.address = plugin_address;
+ address.address_length = plugin_address_length;
+ address.transport_name = plugin_name;
+ address.local_info = ntohl(m->address_local_info);
+
+ if ((s == NULL) && (0 == address.address_length))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "ATS returned invalid address for peer `%s' transport `%s' address length %i, session_id %i\n",
+ GNUNET_i2s (&address.peer), address.transport_name,
+ plugin_address_length, session_id);
+ GNUNET_break_op (0);
+ GNUNET_CLIENT_receive (sh->client, &process_ats_message, sh,
+ GNUNET_TIME_UNIT_FOREVER_REL);
+ return;
+ }
+
+ sh->suggest_cb (sh->suggest_cb_cls,
+ (const struct GNUNET_PeerIdentity *) &m->peer,
+ &address, s, m->bandwidth_out,
m->bandwidth_in, atsi, ats_count);
+
GNUNET_CLIENT_receive (sh->client, &process_ats_message, sh,
GNUNET_TIME_UNIT_FOREVER_REL);
if (GNUNET_YES == sh->reconnect)
GNUNET_assert (NULL == sh->client);
sh->client = GNUNET_CLIENT_connect ("ats", sh->cfg);
GNUNET_assert (NULL != sh->client);
+ GNUNET_CLIENT_receive (sh->client, &process_ats_message, sh,
+ GNUNET_TIME_UNIT_FOREVER_REL);
if ((NULL == (p = sh->pending_head)) || (GNUNET_YES != p->is_init))
{
p = GNUNET_malloc (sizeof (struct PendingMessage) +
}
+/**
+ * delete the current network list
+ */
+static void
+delete_networks (struct GNUNET_ATS_SchedulingHandle *sh)
+{
+ struct ATS_Network * cur = sh->net_head;
+ while (cur != NULL)
+ {
+ GNUNET_CONTAINER_DLL_remove(sh->net_head, sh->net_tail, cur);
+ GNUNET_free (cur);
+ cur = sh->net_head;
+ }
+}
+
+
+static int
+interface_proc (void *cls, const char *name,
+ int isDefault,
+ const struct sockaddr *
+ addr,
+ const struct sockaddr *
+ broadcast_addr,
+ const struct sockaddr *
+ netmask, socklen_t addrlen)
+{
+ struct GNUNET_ATS_SchedulingHandle * sh = cls;
+ /* Calculate network */
+ struct ATS_Network *net = NULL;
+
+ /* Skipping IPv4 loopback addresses since we have special check */
+ if (addr->sa_family == AF_INET)
+ {
+ struct sockaddr_in * a4 = (struct sockaddr_in *) addr;
+
+ if ((a4->sin_addr.s_addr & htonl(0xff000000)) == htonl (0x7f000000))
+ return GNUNET_OK;
+ }
+ /* Skipping IPv6 loopback addresses since we have special check */
+ if (addr->sa_family == AF_INET6)
+ {
+ struct sockaddr_in6 * a6 = (struct sockaddr_in6 *) addr;
+ if (IN6_IS_ADDR_LOOPBACK (&a6->sin6_addr))
+ return GNUNET_OK;
+ }
+
+ if (addr->sa_family == AF_INET)
+ {
+ struct sockaddr_in *addr4 = (struct sockaddr_in *) addr;
+ struct sockaddr_in *netmask4 = (struct sockaddr_in *) netmask;
+ struct sockaddr_in *tmp = NULL;
+ struct sockaddr_in network4;
+
+ net = GNUNET_malloc(sizeof (struct ATS_Network) + 2 * sizeof (struct sockaddr_in));
+ tmp = (struct sockaddr_in *) &net[1];
+ net->network = (struct sockaddr *) &tmp[0];
+ net->netmask = (struct sockaddr *) &tmp[1];
+ net->length = addrlen;
+
+ memset (&network4, 0, sizeof (network4));
+ network4.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ network4.sin_len = sizeof (network4);
+#endif
+ network4.sin_addr.s_addr = (addr4->sin_addr.s_addr & netmask4->sin_addr.s_addr);
+
+ memcpy (net->netmask, netmask4, sizeof (struct sockaddr_in));
+ memcpy (net->network, &network4, sizeof (struct sockaddr_in));
+ }
+
+ if (addr->sa_family == AF_INET6)
+ {
+ struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) addr;
+ struct sockaddr_in6 *netmask6 = (struct sockaddr_in6 *) netmask;
+ struct sockaddr_in6 * tmp = NULL;
+ struct sockaddr_in6 network6;
+
+ net = GNUNET_malloc(sizeof (struct ATS_Network) + 2 * sizeof (struct sockaddr_in6));
+ tmp = (struct sockaddr_in6 *) &net[1];
+ net->network = (struct sockaddr *) &tmp[0];
+ net->netmask = (struct sockaddr *) &tmp[1];
+ net->length = addrlen;
+
+ memset (&network6, 0, sizeof (network6));
+ network6.sin6_family = AF_INET6;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ network6.sin6_len = sizeof (network6);
+#endif
+ int c = 0;
+ uint32_t *addr_elem = (uint32_t *) &addr6->sin6_addr;
+ uint32_t *mask_elem = (uint32_t *) &netmask6->sin6_addr;
+ uint32_t *net_elem = (uint32_t *) &network6.sin6_addr;
+ for (c = 0; c < 4; c++)
+ net_elem[c] = addr_elem[c] & mask_elem[c];
+
+ memcpy (net->netmask, netmask6, sizeof (struct sockaddr_in6));
+ memcpy (net->network, &network6, sizeof (struct sockaddr_in6));
+ }
+
+ /* Store in list */
+ if (net != NULL)
+ {
+#if VERBOSE_ATS
+ char * netmask = GNUNET_strdup (GNUNET_a2s((struct sockaddr *) net->netmask, addrlen));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding network `%s', netmask `%s'\n",
+ GNUNET_a2s((struct sockaddr *) net->network, addrlen),
+ netmask);
+ GNUNET_free (netmask);
+# endif
+ GNUNET_CONTAINER_DLL_insert(sh->net_head, sh->net_tail, net);
+ }
+ return GNUNET_OK;
+}
+
+
+/**
+ * Periodically get list of addresses
+ * @param cls closure
+ * @param tc Task context
+ */
+static void
+get_addresses (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_ATS_SchedulingHandle * sh = cls;
+ sh->interface_task = GNUNET_SCHEDULER_NO_TASK;
+ delete_networks (sh);
+ GNUNET_OS_network_interfaces_list(interface_proc, sh);
+ sh->interface_task = GNUNET_SCHEDULER_add_delayed (INTERFACE_PROCESSING_INTERVALL,
+ get_addresses,
+ sh);
+}
+
+/**
+ * Convert a GNUNET_ATS_NetworkType to a string
+ *
+ * @param net the network type
+ * @return a string or NULL if invalid
+ */
+const char *
+GNUNET_ATS_print_network_type (uint32_t net)
+{
+ char *networks[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkTypeString;
+ if (net < GNUNET_ATS_NetworkTypeCount)
+ return networks[net];
+ return NULL;
+}
+
+/**
+ * Convert a ATS property to a string
+ *
+ * @param type the atsi type
+ * @return a string or NULL if invalid
+ */
+const char *
+GNUNET_ATS_print_property_type (uint32_t type)
+{
+ char *props[GNUNET_ATS_PropertyCount] = GNUNET_ATS_PropertyStrings;
+ if ((type > 0) && (type < GNUNET_ATS_PropertyCount))
+ return props[type];
+ return NULL;
+}
+
+
+/**
+ * Returns where the address is located: LAN or WAN or ...
+ *
+ * @param sh the scheduling handle
+ * @param addr address
+ * @param addrlen address length
+ * @return location as GNUNET_ATS_Information
+ */
+struct GNUNET_ATS_Information
+GNUNET_ATS_address_get_type (struct GNUNET_ATS_SchedulingHandle * sh, const struct sockaddr * addr, socklen_t addrlen)
+{
+ GNUNET_assert (sh != NULL);
+ struct ATS_Network * cur = sh->net_head;
+
+ int type = GNUNET_ATS_NET_UNSPECIFIED;
+ struct GNUNET_ATS_Information ats;
+
+ if (addr->sa_family == AF_UNIX)
+ {
+ type = GNUNET_ATS_NET_LOOPBACK;
+ }
+
+ /* IPv4 loopback check */
+ if (addr->sa_family == AF_INET)
+ {
+ struct sockaddr_in * a4 = (struct sockaddr_in *) addr;
+
+ if ((a4->sin_addr.s_addr & htonl(0xff000000)) == htonl (0x7f000000))
+ type = GNUNET_ATS_NET_LOOPBACK;
+ }
+ /* IPv6 loopback check */
+ if (addr->sa_family == AF_INET6)
+ {
+ struct sockaddr_in6 * a6 = (struct sockaddr_in6 *) addr;
+ if (IN6_IS_ADDR_LOOPBACK (&a6->sin6_addr))
+ type = GNUNET_ATS_NET_LOOPBACK;
+ }
+
+ /* Check local networks */
+ while ((cur != NULL) && (type == GNUNET_ATS_NET_UNSPECIFIED))
+ {
+ if (addrlen != cur->length)
+ {
+ cur = cur->next;
+ continue;
+ }
+
+ if (addr->sa_family == AF_INET)
+ {
+ struct sockaddr_in * a4 = (struct sockaddr_in *) addr;
+ struct sockaddr_in * net4 = (struct sockaddr_in *) cur->network;
+ struct sockaddr_in * mask4 = (struct sockaddr_in *) cur->netmask;
+
+ if (((a4->sin_addr.s_addr & mask4->sin_addr.s_addr)) == net4->sin_addr.s_addr)
+ type = GNUNET_ATS_NET_LAN;
+ }
+ if (addr->sa_family == AF_INET6)
+ {
+ struct sockaddr_in6 * a6 = (struct sockaddr_in6 *) addr;
+ struct sockaddr_in6 * net6 = (struct sockaddr_in6 *) cur->network;
+ struct sockaddr_in6 * mask6 = (struct sockaddr_in6 *) cur->netmask;
+
+ int res = GNUNET_YES;
+ int c = 0;
+ uint32_t *addr_elem = (uint32_t *) &a6->sin6_addr;
+ uint32_t *mask_elem = (uint32_t *) &mask6->sin6_addr;
+ uint32_t *net_elem = (uint32_t *) &net6->sin6_addr;
+ for (c = 0; c < 4; c++)
+ if ((addr_elem[c] & mask_elem[c]) != net_elem[c])
+ res = GNUNET_NO;
+
+ if (res == GNUNET_YES)
+ type = GNUNET_ATS_NET_LAN;
+ }
+ cur = cur->next;
+ }
+
+ /* no local network found for this address, default: WAN */
+ if (type == GNUNET_ATS_NET_UNSPECIFIED)
+ type = GNUNET_ATS_NET_WAN;
+ ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
+ ats.value = htonl (type);
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "ats-scheduling-api",
+ "`%s' is in network `%s'\n",
+ GNUNET_a2s ((const struct sockaddr *) addr, addrlen),
+ GNUNET_ATS_print_network_type(type));
+ return ats;
+}
+
+
/**
* Initialize the ATS subsystem.
*
{
struct GNUNET_ATS_SchedulingHandle *sh;
- sh = GNUNET_malloc (sizeof (struct GNUNET_ATS_SchedulingHandle));
+ sh = GNUNET_new (struct GNUNET_ATS_SchedulingHandle);
sh->cfg = cfg;
sh->suggest_cb = suggest_cb;
sh->suggest_cb_cls = suggest_cb_cls;
GNUNET_array_grow (sh->session_array, sh->session_array_size, 4);
+ GNUNET_OS_network_interfaces_list(interface_proc, sh);
+ sh->interface_task = GNUNET_SCHEDULER_add_delayed (INTERFACE_PROCESSING_INTERVALL,
+ get_addresses,
+ sh);
reconnect (sh);
return sh;
}
GNUNET_ATS_scheduling_done (struct GNUNET_ATS_SchedulingHandle *sh)
{
struct PendingMessage *p;
-
+ struct GNUNET_ATS_SuggestHandle *cur;
+ struct GNUNET_ATS_SuggestHandle *next;
while (NULL != (p = sh->pending_head))
{
GNUNET_CONTAINER_DLL_remove (sh->pending_head, sh->pending_tail, p);
}
if (NULL != sh->client)
{
- GNUNET_CLIENT_disconnect (sh->client, GNUNET_NO);
+ GNUNET_CLIENT_disconnect (sh->client);
sh->client = NULL;
}
if (GNUNET_SCHEDULER_NO_TASK != sh->task)
GNUNET_SCHEDULER_cancel (sh->task);
sh->task = GNUNET_SCHEDULER_NO_TASK;
}
+
+ next = sh->sug_head;
+ while (NULL != (cur = next))
+ {
+ next = cur->next;
+ GNUNET_CONTAINER_DLL_remove (sh->sug_head, sh->sug_tail, cur);
+ GNUNET_free (cur);
+ }
+
+ delete_networks (sh);
+ if (sh->interface_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(sh->interface_task);
+ sh->interface_task = GNUNET_SCHEDULER_NO_TASK;
+ }
GNUNET_array_grow (sh->session_array, sh->session_array_size, 0);
GNUNET_free (sh);
+ sh = NULL;
}
+/**
+ * We would like to reset the address suggestion block time for this
+ * peer
+ *
+ * @param sh handle
+ * @param peer identity of the peer we want to reset
+ */
+void
+GNUNET_ATS_reset_backoff (struct GNUNET_ATS_SchedulingHandle *sh,
+ const struct GNUNET_PeerIdentity *peer)
+{
+ struct PendingMessage *p;
+ struct ResetBackoffMessage *m;
+
+ p = GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (struct ResetBackoffMessage));
+ p->size = sizeof (struct ResetBackoffMessage);
+ p->is_init = GNUNET_NO;
+ m = (struct ResetBackoffMessage *) &p[1];
+ m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_RESET_BACKOFF);
+ m->header.size = htons (sizeof (struct ResetBackoffMessage));
+ m->reserved = htonl (0);
+ m->peer = *peer;
+ GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
+ do_transmit (sh);
+}
/**
- * We would like to establish a new connection with a peer. ATS
- * should suggest a good address to begin with.
+ * We would like to receive address suggestions for a peer. ATS will
+ * respond with a call to the continuation immediately containing an address or
+ * no address if none is available. ATS can suggest more addresses until we call
+ * #GNUNET_ATS_suggest_address_cancel.
+ *
*
* @param sh handle
* @param peer identity of the peer we need an address for
+ * @param cont the continuation to call with the address
+ * @param cont_cls the cls for the continuation
+ * @return suggest handle
*/
-void
+struct GNUNET_ATS_SuggestHandle *
GNUNET_ATS_suggest_address (struct GNUNET_ATS_SchedulingHandle *sh,
- const struct GNUNET_PeerIdentity *peer)
+ const struct GNUNET_PeerIdentity *peer,
+ GNUNET_ATS_AddressSuggestionCallback cont,
+ void *cont_cls)
{
struct PendingMessage *p;
struct RequestAddressMessage *m;
+ struct GNUNET_ATS_SuggestHandle *s;
+ // FIXME: ATS needs to remember this in case of
+ // a disconnect!
p = GNUNET_malloc (sizeof (struct PendingMessage) +
sizeof (struct RequestAddressMessage));
p->size = sizeof (struct RequestAddressMessage);
m->peer = *peer;
GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
do_transmit (sh);
+ s = GNUNET_new (struct GNUNET_ATS_SuggestHandle);
+ s->id = (*peer);
+ GNUNET_CONTAINER_DLL_insert_tail (sh->sug_head, sh->sug_tail, s);
+ return s;
+}
+
+
+/**
+ * We would like to stop receiving address updates for this peer
+ *
+ * @param sh handle
+ * @param peer identity of the peer
+ */
+void
+GNUNET_ATS_suggest_address_cancel (struct GNUNET_ATS_SchedulingHandle *sh,
+ const struct GNUNET_PeerIdentity *peer)
+{
+ struct PendingMessage *p;
+ struct RequestAddressMessage *m;
+ struct GNUNET_ATS_SuggestHandle *s;
+
+ for (s = sh->sug_head; NULL != s; s = s->next)
+ if (0 == memcmp(peer, &s->id, sizeof (s->id)))
+ break;
+ if (NULL == s)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ else
+ {
+ GNUNET_CONTAINER_DLL_remove (sh->sug_head, sh->sug_tail, s);
+ GNUNET_free (s);
+ }
+
+ p = GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (struct RequestAddressMessage));
+ p->size = sizeof (struct RequestAddressMessage);
+ p->is_init = GNUNET_NO;
+ m = (struct RequestAddressMessage *) &p[1];
+ m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS_CANCEL);
+ m->header.size = htons (sizeof (struct RequestAddressMessage));
+ m->reserved = htonl (0);
+ m->peer = *peer;
+ GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
+ do_transmit (sh);
+}
+
+
+/**
+ * Test if a address and a session is known to ATS
+ *
+ * @param sh the scheduling handle
+ * @param address the address
+ * @param session the session
+ * @return GNUNET_YES or GNUNET_NO
+ */
+int
+GNUNET_ATS_session_known (struct GNUNET_ATS_SchedulingHandle *sh,
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session)
+{
+ int s;
+ if (NULL != session)
+ {
+ if (NOT_FOUND != (s = find_session_id (sh, session, &address->peer)))
+ {
+ /* Existing */
+ return GNUNET_YES;
+ }
+ return GNUNET_NO;
+ }
+ return GNUNET_NO;
+}
+
+/**
+ * We have a new address ATS should know. Addresses have to be added with this
+ * function before they can be: updated, set in use and destroyed
+ *
+ * @param sh handle
+ * @param address the address
+ * @param session session handle, can be NULL
+ * @param ats performance data for the address
+ * @param ats_count number of performance records in 'ats'
+ * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ */
+int
+GNUNET_ATS_address_add (struct GNUNET_ATS_SchedulingHandle *sh,
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session,
+ const struct GNUNET_ATS_Information *ats,
+ uint32_t ats_count)
+{
+
+ struct PendingMessage *p;
+ struct AddressUpdateMessage *m;
+ struct GNUNET_ATS_Information *am;
+ char *pm;
+ size_t namelen;
+ size_t msize;
+ uint32_t s = 0;
+
+ if (address == NULL)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ namelen = (address->transport_name == NULL) ? 0 : strlen (address->transport_name) + 1;
+
+ msize = sizeof (struct AddressUpdateMessage) + address->address_length +
+ ats_count * sizeof (struct GNUNET_ATS_Information) + namelen;
+ if ((msize >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (address->address_length >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (namelen >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (ats_count >=
+ GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct GNUNET_ATS_Information)))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ if (NULL != session)
+ {
+ if (NOT_FOUND != (s = find_session_id (sh, session, &address->peer)))
+ {
+ /* Already existing, nothing todo */
+ return GNUNET_SYSERR;
+ }
+ s = find_empty_session_slot (sh, session, &address->peer);
+ GNUNET_break (NOT_FOUND != s);
+ }
+
+ p = GNUNET_malloc (sizeof (struct PendingMessage) + msize);
+ p->size = msize;
+ p->is_init = GNUNET_NO;
+ m = (struct AddressUpdateMessage *) &p[1];
+ m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESS_ADD);
+ m->header.size = htons (msize);
+ m->ats_count = htonl (ats_count);
+ m->peer = address->peer;
+ m->address_length = htons (address->address_length);
+ m->address_local_info = htonl ((uint32_t) address->local_info);
+ m->plugin_name_length = htons (namelen);
+ m->session_id = htonl (s);
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Adding address for peer `%s', plugin `%s', session %p id %u\n",
+ GNUNET_i2s (&address->peer),
+ address->transport_name, session, s);
+
+ am = (struct GNUNET_ATS_Information *) &m[1];
+ memcpy (am, ats, ats_count * sizeof (struct GNUNET_ATS_Information));
+ pm = (char *) &am[ats_count];
+ memcpy (pm, address->address, address->address_length);
+ if (NULL != address->transport_name)
+ memcpy (&pm[address->address_length], address->transport_name, namelen);
+ GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
+ do_transmit (sh);
+ return GNUNET_OK;
+
}
* for later use). Update bandwidth assignments.
*
* @param sh handle
- * @param peer identity of the new peer
- * @param plugin_name name of the transport plugin
- * @param plugin_addr address (if available)
- * @param plugin_addr_len number of bytes in plugin_addr
- * @param session session handle (if available)
+ * @param address the address
+ * @param session session handle, can be NULL
* @param ats performance data for the address
* @param ats_count number of performance records in 'ats'
+ * @return GNUNET_YES on success, GNUNET_NO if address or session are unknown,
+ * GNUNET_SYSERR on hard failure
*/
-void
+int
GNUNET_ATS_address_update (struct GNUNET_ATS_SchedulingHandle *sh,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name, const void *plugin_addr,
- size_t plugin_addr_len, struct Session *session,
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session,
const struct GNUNET_ATS_Information *ats,
uint32_t ats_count)
{
char *pm;
size_t namelen;
size_t msize;
+ uint32_t s = 0;
+
+ if (NULL == address)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ if (NULL == sh)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
- namelen = (plugin_name == NULL) ? 0 : strlen (plugin_name) + 1;
+ namelen = (address->transport_name ==
+ NULL) ? 0 : strlen (address->transport_name) + 1;
msize =
- sizeof (struct AddressUpdateMessage) + plugin_addr_len +
+ sizeof (struct AddressUpdateMessage) + address->address_length +
ats_count * sizeof (struct GNUNET_ATS_Information) + namelen;
if ((msize >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
- (plugin_addr_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (address->address_length >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
(namelen >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
(ats_count >=
GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct GNUNET_ATS_Information)))
{
GNUNET_break (0);
- return;
+ return GNUNET_SYSERR;
}
+
+ if (NULL != session)
+ {
+ s = find_session_id (sh, session, &address->peer);
+ if (NOT_FOUND == s)
+ return GNUNET_NO;
+ }
+
p = GNUNET_malloc (sizeof (struct PendingMessage) + msize);
p->size = msize;
p->is_init = GNUNET_NO;
m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESS_UPDATE);
m->header.size = htons (msize);
m->ats_count = htonl (ats_count);
- m->peer = *peer;
- m->address_length = htons (plugin_addr_len);
+ m->peer = address->peer;
+ m->address_length = htons (address->address_length);
+ m->address_local_info = htonl ((uint32_t) address->local_info);
m->plugin_name_length = htons (namelen);
- m->session_id = htonl (get_session_id (sh, session, peer));
+
+ m->session_id = htonl (s);
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Updating address for peer `%s', plugin `%s', session %p id %u\n",
+ GNUNET_i2s (&address->peer),
+ address->transport_name, session, s);
+
am = (struct GNUNET_ATS_Information *) &m[1];
memcpy (am, ats, ats_count * sizeof (struct GNUNET_ATS_Information));
pm = (char *) &am[ats_count];
- memcpy (pm, plugin_addr, plugin_addr_len);
- memcpy (&pm[plugin_addr_len], plugin_name, namelen);
+ memcpy (pm, address->address, address->address_length);
+ memcpy (&pm[address->address_length], address->transport_name, namelen);
GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
do_transmit (sh);
+ return GNUNET_YES;
}
* An address is now in use or not used any more.
*
* @param sh handle
- * @param peer identity of the peer
- * @param plugin_name name of the transport plugin
- * @param plugin_addr address (if available)
- * @param plugin_addr_len number of bytes in plugin_addr
- * @param session session handle
+ * @param address the address
+ * @param session session handle, can be NULL
* @param in_use GNUNET_YES if this address is now used, GNUNET_NO
* if address is not used any more
*/
void
GNUNET_ATS_address_in_use (struct GNUNET_ATS_SchedulingHandle *sh,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name, const void *plugin_addr,
- size_t plugin_addr_len, struct Session *session,
- int in_use)
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session, int in_use)
{
struct PendingMessage *p;
struct AddressUseMessage *m;
char *pm;
size_t namelen;
size_t msize;
+ uint32_t s = 0;
- namelen = (plugin_name == NULL) ? 0 : strlen (plugin_name) + 1;
- msize = sizeof (struct AddressUseMessage) + plugin_addr_len + namelen;
+ GNUNET_assert (NULL != address);
+ namelen =
+ (address->transport_name ==
+ NULL) ? 0 : strlen (address->transport_name) + 1;
+ msize = sizeof (struct AddressUseMessage) + address->address_length + namelen;
if ((msize >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
- (plugin_addr_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (address->address_length >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
(namelen >= GNUNET_SERVER_MAX_MESSAGE_SIZE))
{
GNUNET_break (0);
return;
}
+
+ if (session != NULL)
+ {
+ s = find_session_id (sh, session, &address->peer);
+ if ((s == NOT_FOUND) && (GNUNET_NO == in_use))
+ {
+ /* trying to set unknown address to NO */
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Trying to set unknown address to unused for peer `%s', plugin `%s', session %p\n",
+ GNUNET_i2s (&address->peer), address->transport_name, session);
+ GNUNET_break (0);
+ return;
+ }
+ if ((s == NOT_FOUND) && (GNUNET_YES == in_use))
+ {
+ /* trying to set new address to YES */
+ s = find_empty_session_slot (sh, session, &address->peer);
+ GNUNET_assert (NOT_FOUND != s);
+ }
+ }
+
p = GNUNET_malloc (sizeof (struct PendingMessage) + msize);
p->size = msize;
p->is_init = GNUNET_NO;
m = (struct AddressUseMessage *) &p[1];
m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESS_IN_USE);
m->header.size = htons (msize);
- m->peer = *peer;
+ m->peer = address->peer;
m->in_use = htons (in_use);
- m->address_length = htons (plugin_addr_len);
+ m->address_length = htons (address->address_length);
+ m->address_local_info = htonl ((uint32_t) address->local_info);
m->plugin_name_length = htons (namelen);
- m->session_id = htonl (get_session_id (sh, session, peer));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Setting address used to %s for peer `%s', plugin `%s', session %p\n",
+ (GNUNET_YES == in_use) ? "YES" : "NO",
+ GNUNET_i2s (&address->peer), address->transport_name, session);
+
+ m->session_id = htonl (s);
pm = (char *) &m[1];
- memcpy (pm, plugin_addr, plugin_addr_len);
- memcpy (&pm[plugin_addr_len], plugin_name, namelen);
+ memcpy (pm, address->address, address->address_length);
+ memcpy (&pm[address->address_length], address->transport_name, namelen);
GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
-
do_transmit (sh);
+ return;
}
+
/**
* A session got destroyed, stop including it as a valid address.
*
* @param sh handle
- * @param peer identity of the peer
- * @param plugin_name name of the transport plugin
- * @param plugin_addr address (if available)
- * @param plugin_addr_len number of bytes in plugin_addr
- * @param session session handle that is no longer valid
+ * @param address the address
+ * @param session session handle that is no longer valid, can be NULL
*/
void
GNUNET_ATS_address_destroyed (struct GNUNET_ATS_SchedulingHandle *sh,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name, const void *plugin_addr,
- size_t plugin_addr_len, struct Session *session)
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session)
{
struct PendingMessage *p;
struct AddressDestroyedMessage *m;
char *pm;
size_t namelen;
size_t msize;
- uint32_t session_id;
+ uint32_t s = 0;
- namelen = (plugin_name == NULL) ? 0 : strlen (plugin_name) + 1;
- msize = sizeof (struct AddressDestroyedMessage) + plugin_addr_len + namelen;
+ if (address == NULL)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ GNUNET_assert (address->transport_name != NULL);
+ namelen = strlen (address->transport_name) + 1;
+ GNUNET_assert (namelen > 1);
+ msize =
+ sizeof (struct AddressDestroyedMessage) + address->address_length +
+ namelen;
if ((msize >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
- (plugin_addr_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
+ (address->address_length >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
(namelen >= GNUNET_SERVER_MAX_MESSAGE_SIZE))
{
GNUNET_break (0);
return;
}
+
+ s = find_session_id (sh, session, &address->peer);
+ if ((NULL != session) && (NOT_FOUND == s))
+ {
+ /* trying to delete unknown address */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Trying to delete unknown address for peer `%s', plugin `%s', session %p\n",
+ GNUNET_i2s (&address->peer), address->transport_name, session);
+ return;
+ }
+
p = GNUNET_malloc (sizeof (struct PendingMessage) + msize);
p->size = msize;
p->is_init = GNUNET_NO;
m->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESS_DESTROYED);
m->header.size = htons (msize);
m->reserved = htonl (0);
- m->peer = *peer;
- m->address_length = htons (plugin_addr_len);
+ m->peer = address->peer;
+ m->address_length = htons (address->address_length);
+ m->address_local_info = htonl ((uint32_t) address->local_info);
m->plugin_name_length = htons (namelen);
- m->session_id = htonl (session_id = get_session_id (sh, session, peer));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Deleting address for peer `%s', plugin `%s', session %p\n",
+ GNUNET_i2s (&address->peer), address->transport_name, session);
+
+ m->session_id = htonl (s);
pm = (char *) &m[1];
- memcpy (pm, plugin_addr, plugin_addr_len);
- memcpy (&pm[plugin_addr_len], plugin_name, namelen);
+ memcpy (pm, address->address, address->address_length);
+ memcpy (&pm[address->address_length], address->transport_name, namelen);
GNUNET_CONTAINER_DLL_insert_tail (sh->pending_head, sh->pending_tail, p);
do_transmit (sh);
- remove_session (sh, session_id, peer);
+ remove_session (sh, s, &address->peer);
}
/* end of ats_api_scheduling.c */
projects / oweals / gnunet.git / blobdiff