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Merge branch 'Cleanup-defines' of https://github.com/FullName/ProjectTox-Core into FullName-Cleanup-defines

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irungentoo 2013-10-20 15:12:46 -04:00
commit 9303c18b0c
12 changed files with 272 additions and 655 deletions
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4
other/bootstrap_serverdaemon/DHT_bootstrap_daemon.c
View File

@ -305,12 +305,8 @@ struct server_conf_s configure_server(char *cfg_file)
printf("bootstrap_server %d: Invalid port.\n", i); printf("bootstrap_server %d: Invalid port.\n", i);
} }
#ifdef TOX_ENABLE_IPV6
server_conf.info[i].conn.ip.family = AF_INET; server_conf.info[i].conn.ip.family = AF_INET;
server_conf.info[i].conn.ip.ip4.uint32 = resolve_addr(strcpy(tmp_ip, bs_ip)); server_conf.info[i].conn.ip.ip4.uint32 = resolve_addr(strcpy(tmp_ip, bs_ip));
#else
server_conf.info[i].conn.ip.uint32 = resolve_addr(strcpy(tmp_ip, bs_ip));
#endif
server_conf.info[i].conn.port = htons(bs_port); server_conf.info[i].conn.port = htons(bs_port);
b16_to_key(strcpy(tmp_pk, bs_pk), bs_pk_p); b16_to_key(strcpy(tmp_pk, bs_pk), bs_pk_p);
} }

8
testing/DHT_test.c
View File

@ -80,12 +80,8 @@ void print_clientlist(DHT *dht)
printf("%02hhX", client->client_id[j]); printf("%02hhX", client->client_id[j]);
} }
#ifdef CLIENT_ONETOONE_IP
print_assoc(&client->assoc, 1);
#else
print_assoc(&client->assoc4, 1); print_assoc(&client->assoc4, 1);
print_assoc(&client->assoc6, 1); print_assoc(&client->assoc6, 1);
#endif
} }
} }
@ -119,12 +115,8 @@ void print_friendlist(DHT *dht)
printf("%hhX", client->client_id[j]); printf("%hhX", client->client_id[j]);
} }
#ifdef CLIENT_ONETOONE_IP
print_assoc(&client->assoc, 0);
#else
print_assoc(&client->assoc4, 0); print_assoc(&client->assoc4, 0);
print_assoc(&client->assoc6, 0); print_assoc(&client->assoc6, 0);
#endif
} }
} }
} }

389
toxcore/DHT.c
View File

@ -131,12 +131,9 @@ static int client_in_list(Client_data *list, uint32_t length, uint8_t *client_id
uint64_t temp_time = unix_time(); uint64_t temp_time = unix_time();
for (i = 0; i < length; i++) for (i = 0; i < length; i++)
#ifdef CLIENT_ONETOONE_IP /* Dead nodes are considered dead (not in the list)*/ /* Dead nodes are considered dead (not in the list)*/
if (!is_timeout(temp_time, list[i].assoc.timestamp, KILL_NODE_TIMEOUT))
#else
if (!is_timeout(temp_time, list[i].assoc4.timestamp, KILL_NODE_TIMEOUT) || if (!is_timeout(temp_time, list[i].assoc4.timestamp, KILL_NODE_TIMEOUT) ||
!is_timeout(temp_time, list[i].assoc6.timestamp, KILL_NODE_TIMEOUT)) !is_timeout(temp_time, list[i].assoc6.timestamp, KILL_NODE_TIMEOUT))
#endif
if (id_equal(list[i].client_id, client_id)) if (id_equal(list[i].client_id, client_id))
return 1; return 1;
@ -155,41 +152,12 @@ static int client_or_ip_port_in_list(Client_data *list, uint32_t length, uint8_t
uint32_t i; uint32_t i;
uint64_t temp_time = unix_time(); uint64_t temp_time = unix_time();
#ifdef CLIENT_ONETOONE_IP
uint8_t candropipv4 = 1;
if (ip_port.ip.family == AF_INET6) {
uint8_t ipv6cnt = 0;
/* ipv6: count how many spots are used */
for (i = 0; i < length; i++)
if (list[i].assoc.ip_port.ip.family == AF_INET6)
ipv6cnt++;
/* more than half the list filled with ipv6: block ipv4->ipv6 overwrite */
if (ipv6cnt > length / 2)
candropipv4 = 0;
}
#endif
/* if client_id is in list, find it and maybe overwrite ip_port */ /* if client_id is in list, find it and maybe overwrite ip_port */
for (i = 0; i < length; ++i) for (i = 0; i < length; ++i)
if (id_equal(list[i].client_id, client_id)) { if (id_equal(list[i].client_id, client_id)) {
/* Refresh the client timestamp. */ /* Refresh the client timestamp. */
#ifdef CLIENT_ONETOONE_IP
/* if we got "too many" ipv6 addresses already, keep the ipv4 address */
if (!candropipv4 && (list[i].assoc.ip_port.ip.family == AF_INET))
return 1;
if (LAN_ip(list[i].assoc.ip_port.ip) != 0 && LAN_ip(ip_port.ip) == 0)
return 1;
list[i].assoc.ip_port = ip_port;
list[i].assoc.timestamp = temp_time;
#else
if (ip_port.ip.family == AF_INET) { if (ip_port.ip.family == AF_INET) {
#ifdef LOGGING #ifdef LOGGING
if (!ipport_equal(&list[i].assoc4.ip_port, &ip_port)) { if (!ipport_equal(&list[i].assoc4.ip_port, &ip_port)) {
@ -209,6 +177,7 @@ static int client_or_ip_port_in_list(Client_data *list, uint32_t length, uint8_t
list[i].assoc4.ip_port = ip_port; list[i].assoc4.ip_port = ip_port;
list[i].assoc4.timestamp = temp_time; list[i].assoc4.timestamp = temp_time;
} else if (ip_port.ip.family == AF_INET6) { } else if (ip_port.ip.family == AF_INET6) {
#ifdef LOGGING #ifdef LOGGING
if (!ipport_equal(&list[i].assoc6.ip_port, &ip_port)) { if (!ipport_equal(&list[i].assoc6.ip_port, &ip_port)) {
@ -229,7 +198,6 @@ static int client_or_ip_port_in_list(Client_data *list, uint32_t length, uint8_t
list[i].assoc6.timestamp = temp_time; list[i].assoc6.timestamp = temp_time;
} }
#endif
return 1; return 1;
} }
@ -238,21 +206,6 @@ static int client_or_ip_port_in_list(Client_data *list, uint32_t length, uint8_t
* TODO: maybe we SHOULDN'T do that if that client_id is in a friend_list * TODO: maybe we SHOULDN'T do that if that client_id is in a friend_list
* and the one who is the actual friend's client_id/address set? */ * and the one who is the actual friend's client_id/address set? */
for (i = 0; i < length; ++i) { for (i = 0; i < length; ++i) {
#ifdef CLIENT_ONETOONE_IP
if (ipport_equal(&list[i].assoc.ip_port, &ip_port)) {
/* Initialize client timestamp. */
list[i].assoc.timestamp = temp_time;
memcpy(list[i].client_id, client_id, CLIENT_ID_SIZE);
#ifdef LOGGING
sprintf(logbuffer, "coipil[%u]: switching client_id\n", i);
loglog(logbuffer);
#endif
return 1;
}
#else
/* MAYBE: check the other address, if valid, don't nuke? */ /* MAYBE: check the other address, if valid, don't nuke? */
if ((ip_port.ip.family == AF_INET) && ipport_equal(&list[i].assoc4.ip_port, &ip_port)) { if ((ip_port.ip.family == AF_INET) && ipport_equal(&list[i].assoc4.ip_port, &ip_port)) {
/* Initialize client timestamp. */ /* Initialize client timestamp. */
@ -277,8 +230,6 @@ static int client_or_ip_port_in_list(Client_data *list, uint32_t length, uint8_t
memset(&list[i].assoc4, 0, sizeof(list[i].assoc4)); memset(&list[i].assoc4, 0, sizeof(list[i].assoc4));
return 1; return 1;
} }
#endif
} }
return 0; return 0;
@ -338,22 +289,15 @@ static void get_close_nodes_inner(DHT *dht, uint8_t *client_id, Node_format *nod
continue; continue;
IPPTsPng *ipptp = NULL; IPPTsPng *ipptp = NULL;
#ifdef CLIENT_ONETOONE_IP
ipptp = &client->assoc;
#else
if (sa_family == AF_INET) if (sa_family == AF_INET)
ipptp = &client->assoc4; ipptp = &client->assoc4;
else else
ipptp = &client->assoc6; ipptp = &client->assoc6;
#endif
/* node not in a good condition? */ /* node not in a good condition? */
if (is_timeout(timestamp, ipptp->timestamp, BAD_NODE_TIMEOUT)) if (is_timeout(timestamp, ipptp->timestamp, BAD_NODE_TIMEOUT))
continue; continue;
#ifdef TOX_ENABLE_IPV6
IP *client_ip = &ipptp->ip_port.ip; IP *client_ip = &ipptp->ip_port.ip;
/* /*
@ -373,9 +317,6 @@ static void get_close_nodes_inner(DHT *dht, uint8_t *client_id, Node_format *nod
} }
ipv46x = !(sa_family == ip_treat_as_family); ipv46x = !(sa_family == ip_treat_as_family);
#else
ipv46x = !(sa_family == AF_INET);
#endif
/* node address of the wrong family? */ /* node address of the wrong family? */
if (ipv46x) if (ipv46x)
@ -454,43 +395,17 @@ static int replace_bad( Client_data *list,
uint32_t i; uint32_t i;
uint64_t temp_time = unix_time(); uint64_t temp_time = unix_time();
#ifdef CLIENT_ONETOONE_IP
uint8_t candropipv4 = 1;
if (ip_port.ip.family == AF_INET6) {
uint32_t ipv6cnt = 0;
/* ipv6: count how many spots are used */
for (i = 0; i < length; i++)
if (list[i].assoc.ip_port.ip.family == AF_INET6)
ipv6cnt++;
/* more than half the list filled with ipv6: block ipv4->ipv6 overwrite */
if (ipv6cnt > length / 2)
candropipv4 = 0;
}
#endif
for (i = 0; i < length; ++i) { for (i = 0; i < length; ++i) {
/* If node is bad */ /* If node is bad */
Client_data *client = &list[i]; Client_data *client = &list[i];
IPPTsPng *ipptp = NULL; IPPTsPng *ipptp = NULL;
#ifdef CLIENT_ONETOONE_IP
ipptp = &client->assoc;
if ((candropipv4 || (ipptp->ip_port.ip.family == AF_INET6)) &&
is_timeout(temp_time, ipptp->timestamp, BAD_NODE_TIMEOUT)) {
#else
if (ip_port.ip.family == AF_INET) if (ip_port.ip.family == AF_INET)
ipptp = &client->assoc4; ipptp = &client->assoc4;
else else
ipptp = &client->assoc6; ipptp = &client->assoc6;
if (is_timeout(temp_time, ipptp->timestamp, BAD_NODE_TIMEOUT)) { if (is_timeout(temp_time, ipptp->timestamp, BAD_NODE_TIMEOUT)) {
#endif
memcpy(client->client_id, client_id, CLIENT_ID_SIZE); memcpy(client->client_id, client_id, CLIENT_ID_SIZE);
ipptp->ip_port = ip_port; ipptp->ip_port = ip_port;
ipptp->timestamp = temp_time; ipptp->timestamp = temp_time;
@ -542,60 +457,17 @@ static int replace_good( Client_data *list,
int8_t replace = -1; int8_t replace = -1;
#ifdef CLIENT_ONETOONE_IP /* Because the list is sorted, we can simply check the client_id at the
uint8_t candropipv4 = 1; * border, either it is closer, then every other one is as well, or it is
* further, then it gets pushed out in favor of the new address, which
if (ip_port.ip.family == AF_INET6) { * will with the next sort() move to its "rightful" position
uint32_t i, ipv6cnt = 0; *
* CAVEAT: weirdly enough, the list is sorted DESCENDING in distance
/* ipv6: count how many spots are used */ * so the furthest element is the first, NOT the last (at least that's
for (i = 0; i < length; i++) * what the comment above sort_list() claims)
if (list[i].assoc.ip_port.ip.family == AF_INET6) */
ipv6cnt++; if (id_closest(comp_client_id, list[0].client_id, client_id) == 2)
replace = 0;
/* more than half the list filled with ipv6: block ipv4->ipv6 overwrite */
if (ipv6cnt > length / 2)
candropipv4 = 0;
}
uint32_t i;
if (candropipv4) {
/* either we got an ipv4 address, or we're "allowed" to push out an ipv4
* address in favor of an ipv6 one
*
* because the list is sorted, we can simply check the client_id at the
* border, either it is closer, then every other one is as well, or it is
* further, then it gets pushed out in favor of the new address, which
* will with the next sort() move to its "rightful" position
*
* CAVEAT: weirdly enough, the list is sorted DESCENDING in distance
* so the furthest element is the first, NOT the last (at least that's
* what the comment above sort_list() claims)
*/
#endif
if (id_closest(comp_client_id, list[0].client_id, client_id) == 2)
replace = 0;
#ifdef CLIENT_ONETOONE_IP
} else {
/* ipv6 case without a right to push out an ipv4: only look for ipv6
* addresses, the first one we find is either closer (then we can skip
* out like above) or further (then we can replace it, like above)
*/
for (i = 0; i < length; i++) {
Client_data *client = &list[i];
if (client->assoc.ip_port.ip.family == AF_INET6) {
if (id_closest(comp_client_id, list[i].client_id, client_id) == 2)
replace = i;
break;
}
}
}
#endif
if (replace != -1) { if (replace != -1) {
#ifdef DEBUG #ifdef DEBUG
@ -603,16 +475,12 @@ static int replace_good( Client_data *list,
#endif #endif
Client_data *client = &list[replace]; Client_data *client = &list[replace];
IPPTsPng *ipptp = NULL; IPPTsPng *ipptp = NULL;
#ifdef CLIENT_ONETOONE_IP
ipptp = &client->assoc;
#else
if (ip_port.ip.family == AF_INET) if (ip_port.ip.family == AF_INET)
ipptp = &client->assoc4; ipptp = &client->assoc4;
else else
ipptp = &client->assoc6; ipptp = &client->assoc6;
#endif
memcpy(client->client_id, client_id, CLIENT_ID_SIZE); memcpy(client->client_id, client_id, CLIENT_ID_SIZE);
ipptp->ip_port = ip_port; ipptp->ip_port = ip_port;
ipptp->timestamp = unix_time(); ipptp->timestamp = unix_time();
@ -681,11 +549,6 @@ static void returnedip_ports(DHT *dht, IP_Port ip_port, uint8_t *client_id, uint
if (id_equal(client_id, dht->c->self_public_key)) { if (id_equal(client_id, dht->c->self_public_key)) {
for (i = 0; i < LCLIENT_LIST; ++i) { for (i = 0; i < LCLIENT_LIST; ++i) {
if (id_equal(nodeclient_id, dht->close_clientlist[i].client_id)) { if (id_equal(nodeclient_id, dht->close_clientlist[i].client_id)) {
#ifdef CLIENT_ONETOONE_IP
dht->close_clientlist[i].assoc.ret_ip_port = ip_port;
dht->close_clientlist[i].assoc.ret_timestamp = temp_time;
#else
if (ip_port.ip.family == AF_INET) { if (ip_port.ip.family == AF_INET) {
dht->close_clientlist[i].assoc4.ret_ip_port = ip_port; dht->close_clientlist[i].assoc4.ret_ip_port = ip_port;
dht->close_clientlist[i].assoc4.ret_timestamp = temp_time; dht->close_clientlist[i].assoc4.ret_timestamp = temp_time;
@ -694,7 +557,6 @@ static void returnedip_ports(DHT *dht, IP_Port ip_port, uint8_t *client_id, uint
dht->close_clientlist[i].assoc6.ret_timestamp = temp_time; dht->close_clientlist[i].assoc6.ret_timestamp = temp_time;
} }
#endif
return; return;
} }
} }
@ -704,11 +566,6 @@ static void returnedip_ports(DHT *dht, IP_Port ip_port, uint8_t *client_id, uint
if (id_equal(client_id, dht->friends_list[i].client_id)) { if (id_equal(client_id, dht->friends_list[i].client_id)) {
for (j = 0; j < MAX_FRIEND_CLIENTS; ++j) { for (j = 0; j < MAX_FRIEND_CLIENTS; ++j) {
if (id_equal(nodeclient_id, dht->friends_list[i].client_list[j].client_id)) { if (id_equal(nodeclient_id, dht->friends_list[i].client_list[j].client_id)) {
#ifdef CLIENT_ONETOONE_IP
dht->friends_list[i].client_list[j].assoc.ret_ip_port = ip_port;
dht->friends_list[i].client_list[j].assoc.ret_timestamp = temp_time;
#else
if (ip_port.ip.family == AF_INET) { if (ip_port.ip.family == AF_INET) {
dht->friends_list[i].client_list[j].assoc4.ret_ip_port = ip_port; dht->friends_list[i].client_list[j].assoc4.ret_ip_port = ip_port;
dht->friends_list[i].client_list[j].assoc4.ret_timestamp = temp_time; dht->friends_list[i].client_list[j].assoc4.ret_timestamp = temp_time;
@ -717,7 +574,6 @@ static void returnedip_ports(DHT *dht, IP_Port ip_port, uint8_t *client_id, uint
dht->friends_list[i].client_list[j].assoc6.ret_timestamp = temp_time; dht->friends_list[i].client_list[j].assoc6.ret_timestamp = temp_time;
} }
#endif
return; return;
} }
} }
@ -836,7 +692,7 @@ static int sendnodes(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_t *cl
new_nonce(nonce); new_nonce(nonce);
memcpy(plain, &ping_id, sizeof(ping_id)); memcpy(plain, &ping_id, sizeof(ping_id));
#ifdef TOX_ENABLE_IPV6
Node4_format *nodes4_list = (Node4_format *)(plain + sizeof(ping_id)); Node4_format *nodes4_list = (Node4_format *)(plain + sizeof(ping_id));
int i, num_nodes_ok = 0; int i, num_nodes_ok = 0;
@ -862,10 +718,6 @@ static int sendnodes(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_t *cl
num_nodes = num_nodes_ok; num_nodes = num_nodes_ok;
} }
#else
memcpy(plain + sizeof(ping_id), nodes_list, num_nodes * Node4_format_size);
#endif
int len = encrypt_data( public_key, int len = encrypt_data( public_key,
dht->c->self_secret_key, dht->c->self_secret_key,
nonce, nonce,
@ -887,7 +739,6 @@ static int sendnodes(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_t *cl
return sendpacket(dht->c->lossless_udp->net, ip_port, data, 1 + CLIENT_ID_SIZE + crypto_box_NONCEBYTES + len); return sendpacket(dht->c->lossless_udp->net, ip_port, data, 1 + CLIENT_ID_SIZE + crypto_box_NONCEBYTES + len);
} }
#ifdef TOX_ENABLE_IPV6
/* Send a send nodes response: message for IPv6 nodes */ /* Send a send nodes response: message for IPv6 nodes */
static int sendnodes_ipv6(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_t *client_id, uint64_t ping_id) static int sendnodes_ipv6(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_t *client_id, uint64_t ping_id)
{ {
@ -933,7 +784,6 @@ static int sendnodes_ipv6(DHT *dht, IP_Port ip_port, uint8_t *public_key, uint8_
return sendpacket(dht->c->lossless_udp->net, ip_port, data, 1 + CLIENT_ID_SIZE + crypto_box_NONCEBYTES + len); return sendpacket(dht->c->lossless_udp->net, ip_port, data, 1 + CLIENT_ID_SIZE + crypto_box_NONCEBYTES + len);
} }
#endif
static int handle_getnodes(void *object, IP_Port source, uint8_t *packet, uint32_t length) static int handle_getnodes(void *object, IP_Port source, uint8_t *packet, uint32_t length)
{ {
@ -962,10 +812,8 @@ static int handle_getnodes(void *object, IP_Port source, uint8_t *packet, uint32
memcpy(&ping_id, plain, sizeof(ping_id)); memcpy(&ping_id, plain, sizeof(ping_id));
sendnodes(dht, source, packet + 1, plain + sizeof(ping_id), ping_id); sendnodes(dht, source, packet + 1, plain + sizeof(ping_id), ping_id);
#ifdef TOX_ENABLE_IPV6
sendnodes_ipv6(dht, source, packet + 1, plain + sizeof(ping_id), sendnodes_ipv6(dht, source, packet + 1, plain + sizeof(ping_id),
ping_id); /* TODO: prevent possible amplification attacks */ ping_id); /* TODO: prevent possible amplification attacks */
#endif
add_toping(dht->ping, packet + 1, source); add_toping(dht->ping, packet + 1, source);
//send_ping_request(dht, source, packet + 1); /* TODO: make this smarter? */ //send_ping_request(dht, source, packet + 1); /* TODO: make this smarter? */
@ -1005,14 +853,11 @@ static int handle_sendnodes(void *object, IP_Port source, uint8_t *packet, uint3
if (!is_gettingnodes(dht, source, ping_id)) if (!is_gettingnodes(dht, source, ping_id))
return 1; return 1;
uint32_t i;
Node_format nodes_list[MAX_SENT_NODES];
#ifdef TOX_ENABLE_IPV6
Node4_format *nodes4_list = (Node4_format *)(plain + sizeof(ping_id)); Node4_format *nodes4_list = (Node4_format *)(plain + sizeof(ping_id));
Node_format nodes_list[MAX_SENT_NODES];
uint32_t i, num_nodes_ok = 0;
uint32_t num_nodes_ok = 0; /* blow up from Node4 (IPv4) wire format to Node (IPv4/IPv6) structure */
for (i = 0; i < num_nodes; i++) for (i = 0; i < num_nodes; i++)
if ((nodes4_list[i].ip_port.ip.uint32 != 0) && (nodes4_list[i].ip_port.ip.uint32 != (uint32_t)~0)) { if ((nodes4_list[i].ip_port.ip.uint32 != 0) && (nodes4_list[i].ip_port.ip.uint32 != (uint32_t)~0)) {
memcpy(nodes_list[num_nodes_ok].client_id, nodes4_list[i].client_id, CLIENT_ID_SIZE); memcpy(nodes_list[num_nodes_ok].client_id, nodes4_list[i].client_id, CLIENT_ID_SIZE);
@ -1028,10 +873,6 @@ static int handle_sendnodes(void *object, IP_Port source, uint8_t *packet, uint3
num_nodes = num_nodes_ok; num_nodes = num_nodes_ok;
} }
#else
memcpy(nodes_list, plain + sizeof(ping_id), num_nodes * sizeof(Node_format));
#endif
addto_lists(dht, source, packet + 1); addto_lists(dht, source, packet + 1);
for (i = 0; i < num_nodes; ++i) { for (i = 0; i < num_nodes; ++i) {
@ -1042,7 +883,6 @@ static int handle_sendnodes(void *object, IP_Port source, uint8_t *packet, uint3
return 0; return 0;
} }
#ifdef TOX_ENABLE_IPV6
static int handle_sendnodes_ipv6(void *object, IP_Port source, uint8_t *packet, uint32_t length) static int handle_sendnodes_ipv6(void *object, IP_Port source, uint8_t *packet, uint32_t length)
{ {
DHT *dht = object; DHT *dht = object;
@ -1088,7 +928,6 @@ static int handle_sendnodes_ipv6(void *object, IP_Port source, uint8_t *packet,
return 0; return 0;
} }
#endif
/*----------------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------------*/
/*------------------------END of packet handling functions--------------------------*/ /*------------------------END of packet handling functions--------------------------*/
@ -1103,21 +942,17 @@ static void get_bunchnodes(DHT *dht, Client_data *list, uint16_t length, uint16_
for (i = 0; i < length; ++i) { for (i = 0; i < length; ++i) {
IPPTsPng *assoc; IPPTsPng *assoc;
#ifdef CLIENT_ONETOONE_IP
assoc = &list[i].assoc;
#else
uint32_t a; uint32_t a;
for (a = 0, assoc = &list[i].assoc6; a < 2; a++, assoc = &list[i].assoc4) for (a = 0, assoc = &list[i].assoc6; a < 2; a++, assoc = &list[i].assoc4)
#endif if (ipport_isset(&(assoc->ip_port)) &&
if (ipport_isset(&(assoc->ip_port)) && !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) {
!is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) { getnodes(dht, assoc->ip_port, list[i].client_id, client_id);
getnodes(dht, assoc->ip_port, list[i].client_id, client_id); ++num;
++num;
if (num >= max_num) if (num >= max_num)
return; return;
} }
} }
} }
@ -1194,17 +1029,13 @@ int DHT_getfriendip(DHT *dht, uint8_t *client_id, IP_Port *ip_port)
if (id_equal(client->client_id, client_id)) { if (id_equal(client->client_id, client_id)) {
IPPTsPng *assoc = NULL; IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &client->assoc;
#else
uint32_t a; uint32_t a;
for (a = 0, assoc = &client->assoc6; a < 2; a++, assoc = &client->assoc4) for (a = 0, assoc = &client->assoc6; a < 2; a++, assoc = &client->assoc4)
#endif if (!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT)) {
if (!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT)) { *ip_port = assoc->ip_port;
*ip_port = assoc->ip_port; return 1;
return 1; }
}
} }
} }
@ -1229,27 +1060,22 @@ static void do_ping_and_sendnode_requests(DHT *dht, uint64_t *lastgetnode, uint8
/* If node is not dead. */ /* If node is not dead. */
Client_data *client = &list[i]; Client_data *client = &list[i];
IPPTsPng *assoc; IPPTsPng *assoc;
#ifdef CLIENT_ONETOONE_IP
assoc = &client->assoc;
#else
uint32_t a; uint32_t a;
for (a = 0, assoc = &client->assoc6; a < 2; a++, assoc = &client->assoc4) for (a = 0, assoc = &client->assoc6; a < 2; a++, assoc = &client->assoc4)
#endif if (!is_timeout(temp_time, assoc->timestamp, KILL_NODE_TIMEOUT)) {
if (is_timeout(temp_time, assoc->last_pinged, PING_INTERVAL)) {
send_ping_request(dht->ping, assoc->ip_port, client->client_id );
assoc->last_pinged = temp_time;
}
if (!is_timeout(temp_time, assoc->timestamp, KILL_NODE_TIMEOUT)) { /* If node is good. */
if (is_timeout(temp_time, assoc->last_pinged, PING_INTERVAL)) { if (!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT)) {
send_ping_request(dht->ping, assoc->ip_port, client->client_id ); client_list[num_nodes] = client;
assoc->last_pinged = temp_time; assoc_list[num_nodes] = assoc;
++num_nodes;
}
} }
/* If node is good. */
if (!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT)) {
client_list[num_nodes] = client;
assoc_list[num_nodes] = assoc;
++num_nodes;
}
}
} }
if ((num_nodes != 0) && if ((num_nodes != 0) &&
@ -1291,31 +1117,25 @@ int DHT_bootstrap_from_address(DHT *dht, const char *address, uint8_t ipv6enable
{ {
IP_Port ip_port_v64; IP_Port ip_port_v64;
IP *ip_extra = NULL; IP *ip_extra = NULL;
#ifdef TOX_ENABLE_IPV6
IP_Port ip_port_v4; IP_Port ip_port_v4;
ip_init(&ip_port_v64.ip, ipv6enabled); ip_init(&ip_port_v64.ip, ipv6enabled);
if (ipv6enabled) { if (ipv6enabled) {
/* setup for getting BOTH: an IPv6 AND an IPv4 address */
ip_port_v64.ip.family = AF_UNSPEC; ip_port_v64.ip.family = AF_UNSPEC;
ip_reset(&ip_port_v4.ip); ip_reset(&ip_port_v4.ip);
ip_extra = &ip_port_v4.ip; ip_extra = &ip_port_v4.ip;
} }
#else
ip_init(&ip_port_v64.ip, 0);
#endif
if (addr_resolve_or_parse_ip(address, &ip_port_v64.ip, ip_extra)) { if (addr_resolve_or_parse_ip(address, &ip_port_v64.ip, ip_extra)) {
ip_port_v64.port = port; ip_port_v64.port = port;
DHT_bootstrap(dht, ip_port_v64, public_key); DHT_bootstrap(dht, ip_port_v64, public_key);
#ifdef TOX_ENABLE_IPV6
if ((ip_extra != NULL) && ip_isset(ip_extra)) { if ((ip_extra != NULL) && ip_isset(ip_extra)) {
ip_port_v4.port = port; ip_port_v4.port = port;
DHT_bootstrap(dht, ip_port_v4, public_key); DHT_bootstrap(dht, ip_port_v4, public_key);
} }
#endif
return 1; return 1;
} else } else
return 0; return 0;
@ -1332,12 +1152,6 @@ int route_packet(DHT *dht, uint8_t *client_id, uint8_t *packet, uint32_t length)
for (i = 0; i < LCLIENT_LIST; ++i) { for (i = 0; i < LCLIENT_LIST; ++i) {
if (id_equal(client_id, dht->close_clientlist[i].client_id)) { if (id_equal(client_id, dht->close_clientlist[i].client_id)) {
Client_data *client = &dht->close_clientlist[i]; Client_data *client = &dht->close_clientlist[i];
#ifdef CLIENT_ONETOONE_IP
if (ip_isset(&client->assoc.ip_port.ip))
return sendpacket(dht->c->lossless_udp->net, dht->close_clientlist[i].assoc.ip_port, packet, length);
#else
if (ip_isset(&client->assoc6.ip_port.ip)) if (ip_isset(&client->assoc6.ip_port.ip))
return sendpacket(dht->c->lossless_udp->net, client->assoc6.ip_port, packet, length); return sendpacket(dht->c->lossless_udp->net, client->assoc6.ip_port, packet, length);
@ -1345,8 +1159,6 @@ int route_packet(DHT *dht, uint8_t *client_id, uint8_t *packet, uint32_t length)
return sendpacket(dht->c->lossless_udp->net, client->assoc4.ip_port, packet, length); return sendpacket(dht->c->lossless_udp->net, client->assoc4.ip_port, packet, length);
else else
break; break;
#endif
} }
} }
@ -1355,7 +1167,6 @@ int route_packet(DHT *dht, uint8_t *client_id, uint8_t *packet, uint32_t length)
/* Puts all the different ips returned by the nodes for a friend_num into array ip_portlist. /* Puts all the different ips returned by the nodes for a friend_num into array ip_portlist.
* ip_portlist must be at least MAX_FRIEND_CLIENTS big. * ip_portlist must be at least MAX_FRIEND_CLIENTS big.
* unless CLIENT_ONETOONE_IP is defined, returns an array with ips of the same family.
* *
* return the number of ips returned. * return the number of ips returned.
* return 0 if we are connected to friend or if no ips were found. * return 0 if we are connected to friend or if no ips were found.
@ -1375,55 +1186,56 @@ static int friend_iplist(DHT *dht, IP_Port *ip_portlist, uint16_t friend_num)
int num_ipv4s = 0; int num_ipv4s = 0;
IP_Port ipv6s[MAX_FRIEND_CLIENTS]; IP_Port ipv6s[MAX_FRIEND_CLIENTS];
int num_ipv6s = 0; int num_ipv6s = 0;
uint8_t connected;
for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) { for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) {
client = &(friend->client_list[i]); client = &(friend->client_list[i]);
connected = 0;
IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &client->assoc;
#else
assoc = &client->assoc4;
#endif
if (id_equal(client->client_id, friend->client_id) &&
!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT))
return 0;
/* If ip is not zero and node is good. */ /* If ip is not zero and node is good. */
if (ip_isset(&assoc->ret_ip_port.ip) && !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) { if (ip_isset(&client->assoc4.ret_ip_port.ip) && !is_timeout(temp_time, client->assoc4.ret_timestamp, BAD_NODE_TIMEOUT)) {
ipv4s[num_ipv4s] = assoc->ret_ip_port; ipv4s[num_ipv4s] = client->assoc4.ret_ip_port;
++num_ipv4s; ++num_ipv4s;
connected = 1;
} }
}
#ifndef CLIENT_ONETOONE_IP if (ip_isset(&client->assoc6.ret_ip_port.ip) && !is_timeout(temp_time, client->assoc6.ret_timestamp, BAD_NODE_TIMEOUT)) {
ipv6s[num_ipv6s] = client->assoc6.ret_ip_port;
for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) {
client = &(friend->client_list[i]);
IPPTsPng *assoc = NULL;
assoc = &client->assoc6;
if (id_equal(client->client_id, friend->client_id) &&
!is_timeout(temp_time, assoc->timestamp, BAD_NODE_TIMEOUT))
return 0;
/* If ip is not zero and node is good. */
if (ip_isset(&assoc->ret_ip_port.ip) && !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) {
ipv6s[num_ipv6s] = assoc->ret_ip_port;
++num_ipv6s; ++num_ipv6s;
connected = 1;
} }
if (connected && id_equal(client->client_id, friend->client_id))
return 0; /* direct connectivity */
} }
#ifdef FRIEND_IPLIST_PAD
memcpy(ip_portlist, ipv6s, num_ipv6s * sizeof(IP_Port));
if (num_ipv6s == MAX_FRIEND_CLIENTS)
return MAX_FRIEND_CLIENTS;
int num_ipv4s_used = MAX_FRIEND_CLIENTS - num_ipv6s;
if (num_ipv4s_used > num_ipv4s)
num_ipv4s_used = num_ipv4s;
memcpy(&ip_portlist[num_ipv6s], ipv4s, num_ipv4s_used * sizeof(IP_Port));
return num_ipv6s + num_ipv4s_used;
#else /* !FRIEND_IPLIST_PAD */
/* there must be some secret reason why we can't pad the longer list
* with the shorter one...
*/
if (num_ipv6s >= num_ipv4s) { if (num_ipv6s >= num_ipv4s) {
memcpy(ip_portlist, ipv6s, num_ipv6s * sizeof(IP_Port)); memcpy(ip_portlist, ipv6s, num_ipv6s * sizeof(IP_Port));
return num_ipv6s; return num_ipv6s;
} }
#endif
memcpy(ip_portlist, ipv4s, num_ipv4s * sizeof(IP_Port)); memcpy(ip_portlist, ipv4s, num_ipv4s * sizeof(IP_Port));
return num_ipv4s; return num_ipv4s;
#endif /* !FRIEND_IPLIST_PAD */
} }
@ -1452,30 +1264,23 @@ int route_tofriend(DHT *dht, uint8_t *friend_id, uint8_t *packet, uint32_t lengt
DHT_Friend *friend = &dht->friends_list[num]; DHT_Friend *friend = &dht->friends_list[num];
Client_data *client; Client_data *client;
#ifndef CLIENT_ONETOONE_IP
/* extra legwork, because having the outside allocating the space for us /* extra legwork, because having the outside allocating the space for us
* is *usually* good(tm) (bites us in the behind in this case though) */ * is *usually* good(tm) (bites us in the behind in this case though) */
uint32_t a; uint32_t a;
for (a = 0; a < 2; a++) for (a = 0; a < 2; a++)
#endif
for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) { for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) {
if (friend_sent[i])/* Send one packet per client.*/ if (friend_sent[i])/* Send one packet per client.*/
continue; continue;
client = &friend->client_list[i]; client = &friend->client_list[i];
IPPTsPng *assoc = NULL; IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &client->assoc;
#else
if (!a) if (!a)
assoc = &client->assoc4; assoc = &client->assoc4;
else else
assoc = &client->assoc6; assoc = &client->assoc6;
#endif
/* If ip is not zero and node is good. */ /* If ip is not zero and node is good. */
if (ip_isset(&assoc->ret_ip_port.ip) && if (ip_isset(&assoc->ret_ip_port.ip) &&
!is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) { !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) {
@ -1510,27 +1315,20 @@ static int routeone_tofriend(DHT *dht, uint8_t *friend_id, uint8_t *packet, uint
uint32_t i; uint32_t i;
uint64_t temp_time = unix_time(); uint64_t temp_time = unix_time();
#ifndef CLIENT_ONETOONE_IP
/* extra legwork, because having the outside allocating the space for us /* extra legwork, because having the outside allocating the space for us
* is *usually* good(tm) (bites us in the behind in this case though) */ * is *usually* good(tm) (bites us in the behind in this case though) */
uint32_t a; uint32_t a;
for (a = 0; a < 2; a++) for (a = 0; a < 2; a++)
#endif
for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) { for (i = 0; i < MAX_FRIEND_CLIENTS; ++i) {
client = &friend->client_list[i]; client = &friend->client_list[i];
IPPTsPng *assoc = NULL; IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &client->assoc;
#else
if (!a) if (!a)
assoc = &client->assoc4; assoc = &client->assoc4;
else else
assoc = &client->assoc6; assoc = &client->assoc6;
#endif
/* If ip is not zero and node is good. */ /* If ip is not zero and node is good. */
if (ip_isset(&assoc->ret_ip_port.ip) && !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) { if (ip_isset(&assoc->ret_ip_port.ip) && !is_timeout(temp_time, assoc->ret_timestamp, BAD_NODE_TIMEOUT)) {
ip_list[n] = assoc->ip_port; ip_list[n] = assoc->ip_port;
@ -1776,9 +1574,7 @@ DHT *new_DHT(Net_Crypto *c)
dht->c = c; dht->c = c;
networking_registerhandler(c->lossless_udp->net, NET_PACKET_GET_NODES, &handle_getnodes, dht); networking_registerhandler(c->lossless_udp->net, NET_PACKET_GET_NODES, &handle_getnodes, dht);
networking_registerhandler(c->lossless_udp->net, NET_PACKET_SEND_NODES, &handle_sendnodes, dht); networking_registerhandler(c->lossless_udp->net, NET_PACKET_SEND_NODES, &handle_sendnodes, dht);
#ifdef TOX_ENABLE_IPV6
networking_registerhandler(c->lossless_udp->net, NET_PACKET_SEND_NODES_IPV6, &handle_sendnodes_ipv6, dht); networking_registerhandler(c->lossless_udp->net, NET_PACKET_SEND_NODES_IPV6, &handle_sendnodes_ipv6, dht);
#endif
init_cryptopackets(dht); init_cryptopackets(dht);
cryptopacket_registerhandler(c, CRYPTO_PACKET_NAT_PING, &handle_NATping, dht); cryptopacket_registerhandler(c, CRYPTO_PACKET_NAT_PING, &handle_NATping, dht);
@ -1885,12 +1681,8 @@ uint32_t DHT_size(DHT *dht)
uint32_t num = 0, i; uint32_t num = 0, i;
for (i = 0; i < LCLIENT_LIST; ++i) for (i = 0; i < LCLIENT_LIST; ++i)
#ifdef CLIENT_ONETOONE_IP
if (dht->close_clientlist[i].assoc.timestamp != 0)
#else
if ((dht->close_clientlist[i].assoc4.timestamp != 0) || if ((dht->close_clientlist[i].assoc4.timestamp != 0) ||
(dht->close_clientlist[i].assoc6.timestamp != 0)) (dht->close_clientlist[i].assoc6.timestamp != 0))
#endif
num++; num++;
uint32_t size32 = sizeof(uint32_t), sizesubhead = size32 * 2; uint32_t size32 = sizeof(uint32_t), sizesubhead = size32 * 2;
@ -1917,11 +1709,7 @@ void DHT_save(DHT *dht, uint8_t *data)
data += sizeof(uint32_t); data += sizeof(uint32_t);
len = sizeof(DHT_Friend) * dht->num_friends; len = sizeof(DHT_Friend) * dht->num_friends;
#ifdef CLIENT_ONETOONE_IP
type = DHT_STATE_TYPE_FRIENDS;
#else
type = DHT_STATE_TYPE_FRIENDS_ASSOC46; type = DHT_STATE_TYPE_FRIENDS_ASSOC46;
#endif
data = z_state_save_subheader(data, len, type); data = z_state_save_subheader(data, len, type);
memcpy(data, dht->friends_list, len); memcpy(data, dht->friends_list, len);
data += len; data += len;
@ -1929,32 +1717,20 @@ void DHT_save(DHT *dht, uint8_t *data)
uint32_t num = 0, i; uint32_t num = 0, i;
for (i = 0; i < LCLIENT_LIST; ++i) for (i = 0; i < LCLIENT_LIST; ++i)
#ifdef CLIENT_ONETOONE_IP
if (dht->close_clientlist[i].assoc.timestamp != 0)
#else
if ((dht->close_clientlist[i].assoc4.timestamp != 0) || if ((dht->close_clientlist[i].assoc4.timestamp != 0) ||
(dht->close_clientlist[i].assoc6.timestamp != 0)) (dht->close_clientlist[i].assoc6.timestamp != 0))
#endif
num++; num++;
len = num * sizeof(Client_data); len = num * sizeof(Client_data);
#ifdef CLIENT_ONETOONE_IP
type = DHT_STATE_TYPE_CLIENTS;
#else
type = DHT_STATE_TYPE_CLIENTS_ASSOC46; type = DHT_STATE_TYPE_CLIENTS_ASSOC46;
#endif
data = z_state_save_subheader(data, len, type); data = z_state_save_subheader(data, len, type);
if (num) { if (num) {
Client_data *clients = (Client_data *)data; Client_data *clients = (Client_data *)data;
for (num = 0, i = 0; i < LCLIENT_LIST; ++i) for (num = 0, i = 0; i < LCLIENT_LIST; ++i)
#ifdef CLIENT_ONETOONE_IP
if (dht->close_clientlist[i].assoc.timestamp != 0)
#else
if ((dht->close_clientlist[i].assoc4.timestamp != 0) || if ((dht->close_clientlist[i].assoc4.timestamp != 0) ||
(dht->close_clientlist[i].assoc6.timestamp != 0)) (dht->close_clientlist[i].assoc6.timestamp != 0))
#endif
memcpy(&clients[num++], &dht->close_clientlist[i], sizeof(Client_data)); memcpy(&clients[num++], &dht->close_clientlist[i], sizeof(Client_data));
} }
@ -2005,18 +1781,18 @@ static int dht_load_state_callback(void *outer, uint8_t *data, uint32_t length,
break; break;
case DHT_STATE_TYPE_FRIENDS_ASSOC46: case DHT_STATE_TYPE_FRIENDS_ASSOC46:
if (length % sizeof(DHT_Friend_new) != 0) if (length % sizeof(DHT_Friend) != 0)
break; break;
{ /* localize declarations */ { /* localize declarations */
DHT_Friend_new *friend_list = (DHT_Friend_new *)data; DHT_Friend *friend_list = (DHT_Friend *)data;
num = length / sizeof(DHT_Friend_new); num = length / sizeof(DHT_Friend);
for (i = 0; i < num; ++i) { for (i = 0; i < num; ++i) {
DHT_addfriend(dht, friend_list[i].client_id); DHT_addfriend(dht, friend_list[i].client_id);
for (j = 0; j < MAX_FRIEND_CLIENTS; ++j) { for (j = 0; j < MAX_FRIEND_CLIENTS; ++j) {
Client_data_new *client = &friend_list[i].client_list[j]; Client_data *client = &friend_list[i].client_list[j];
if (client->assoc4.timestamp != 0) if (client->assoc4.timestamp != 0)
getnodes(dht, client->assoc4.ip_port, client->client_id, friend_list[i].client_id); getnodes(dht, client->assoc4.ip_port, client->client_id, friend_list[i].client_id);
@ -2030,12 +1806,12 @@ static int dht_load_state_callback(void *outer, uint8_t *data, uint32_t length,
break; break;
case DHT_STATE_TYPE_CLIENTS_ASSOC46: case DHT_STATE_TYPE_CLIENTS_ASSOC46:
if ((length % sizeof(Client_data_new)) != 0) if ((length % sizeof(Client_data)) != 0)
break; break;
{ /* localize declarations */ { /* localize declarations */
num = length / sizeof(Client_data_new); num = length / sizeof(Client_data);
Client_data_new *client_list = (Client_data_new *)data; Client_data *client_list = (Client_data *)data;
for (i = 0; i < num; ++i) { for (i = 0; i < num; ++i) {
if (client_list[i].assoc4.timestamp != 0) if (client_list[i].assoc4.timestamp != 0)
@ -2048,9 +1824,12 @@ static int dht_load_state_callback(void *outer, uint8_t *data, uint32_t length,
break; break;
#ifdef DEBUG
default: default:
fprintf(stderr, "Load state (DHT): contains unrecognized part (len %u, type %u)\n", fprintf(stderr, "Load state (DHT): contains unrecognized part (len %u, type %u)\n",
length, type); length, type);
break;
#endif
} }
return 0; return 0;
@ -2085,13 +1864,9 @@ int DHT_isconnected(DHT *dht)
for (i = 0; i < LCLIENT_LIST; ++i) { for (i = 0; i < LCLIENT_LIST; ++i) {
Client_data *client = &dht->close_clientlist[i]; Client_data *client = &dht->close_clientlist[i];
#ifdef CLIENT_ONETOONE_IP
if (!is_timeout(temp_time, client->assoc.timestamp, BAD_NODE_TIMEOUT))
#else
if (!is_timeout(temp_time, client->assoc4.timestamp, BAD_NODE_TIMEOUT) || if (!is_timeout(temp_time, client->assoc4.timestamp, BAD_NODE_TIMEOUT) ||
!is_timeout(temp_time, client->assoc6.timestamp, BAD_NODE_TIMEOUT)) !is_timeout(temp_time, client->assoc6.timestamp, BAD_NODE_TIMEOUT))
#endif
return 1; return 1;
} }

27
toxcore/DHT.h
View File

@ -56,13 +56,13 @@ typedef struct {
typedef struct { typedef struct {
uint8_t client_id[CLIENT_ID_SIZE]; uint8_t client_id[CLIENT_ID_SIZE];
IPPTsPng assoc; IPPTsPng assoc;
} Client_data_old; } Client_data_old; /* required to load old state files */
typedef struct { typedef struct {
uint8_t client_id[CLIENT_ID_SIZE]; uint8_t client_id[CLIENT_ID_SIZE];
IPPTsPng assoc4; IPPTsPng assoc4;
IPPTsPng assoc6; IPPTsPng assoc6;
} Client_data_new; } Client_data;
/*----------------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------------*/
@ -85,27 +85,18 @@ typedef struct {
/* Symetric NAT hole punching stuff. */ /* Symetric NAT hole punching stuff. */
NAT nat; NAT nat;
} DHT_Friend_old; } DHT_Friend_old; /* required to load old state files */
typedef struct { typedef struct {
uint8_t client_id[CLIENT_ID_SIZE]; uint8_t client_id[CLIENT_ID_SIZE];
Client_data_new client_list[MAX_FRIEND_CLIENTS]; Client_data client_list[MAX_FRIEND_CLIENTS];
/* Time at which the last get_nodes request was sent. */ /* Time at which the last get_nodes request was sent. */
uint64_t lastgetnode; uint64_t lastgetnode;
/* Symetric NAT hole punching stuff. */ /* Symetric NAT hole punching stuff. */
NAT nat; NAT nat;
} DHT_Friend_new; } DHT_Friend;
/* #define CLIENT_ONETOONE_IP */
#ifdef CLIENT_ONETOONE_IP
typedef Client_data_old Client_data;
typedef DHT_Friend_old DHT_Friend;
#else
typedef Client_data_new Client_data;
typedef DHT_Friend_new DHT_Friend;
#endif
/* this must be kept even if IP_Port is expanded: wire compatibility */ /* this must be kept even if IP_Port is expanded: wire compatibility */
typedef struct { typedef struct {
@ -116,13 +107,7 @@ typedef struct {
typedef struct { typedef struct {
uint8_t client_id[CLIENT_ID_SIZE]; uint8_t client_id[CLIENT_ID_SIZE];
IP_Port ip_port; IP_Port ip_port;
} Node46_format; } Node_format;
#ifdef TOX_ENABLE_IPV6
typedef Node46_format Node_format;
#else
typedef Node4_format Node_format;
#endif
/*----------------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------------*/

118
toxcore/LAN_discovery.c
View File

@ -30,60 +30,83 @@
#define MAX_INTERFACES 16 #define MAX_INTERFACES 16
#ifdef __linux #ifdef __linux
#ifndef TOX_ENABLE_IPV6
/* Send packet to all broadcast addresses static int broadcast_count = -1;
* static IP_Port broadcast_ip_port[MAX_INTERFACES];
* return higher than 0 on success.
* return 0 on error. static void fetch_broadcast_info(uint16_t port)
*
* TODO: Make this work with IPv6 and remove the #ifndef TOX_ENABLE_IPV6.
*/
static uint32_t send_broadcasts(Networking_Core *net, uint16_t port, uint8_t *data, uint16_t length)
{ {
/* Not sure how many platforms this will run on, /* Not sure how many platforms this will run on,
* so it's wrapped in __linux for now. * so it's wrapped in __linux for now.
* Definitely won't work like this on Windows...
*/ */
struct sockaddr_in *sock_holder = NULL; broadcast_count = 0;
struct ifreq i_faces[MAX_INTERFACES]; sock_t sock = 0;
struct ifconf ifconf; if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
int count = 0; return;
int sock = 0;
int i = 0;
/* Configure ifconf for the ioctl call. */ /* Configure ifconf for the ioctl call. */
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { struct ifreq i_faces[MAX_INTERFACES];
return 1;
}
memset(i_faces, 0, sizeof(struct ifreq) * MAX_INTERFACES); memset(i_faces, 0, sizeof(struct ifreq) * MAX_INTERFACES);
struct ifconf ifconf;
ifconf.ifc_buf = (char *)i_faces; ifconf.ifc_buf = (char *)i_faces;
ifconf.ifc_len = sizeof(i_faces); ifconf.ifc_len = sizeof(i_faces);
count = ifconf.ifc_len / sizeof(struct ifreq);
if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0) { if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0) {
return 1; close(sock);
return;
} }
/* ifconf.ifc_len is set by the ioctl() to the actual length used;
* on usage of the complete array the call should be repeated with
* a larger array, not done (640kB and 16 interfaces shall be
* enough, for everybody!)
*/
int i, count = ifconf.ifc_len / sizeof(struct ifreq);
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
if (ioctl(sock, SIOCGIFBRDADDR, &i_faces[i]) < 0) { /* there are interfaces with are incapable of broadcast */
return 1; if (ioctl(sock, SIOCGIFBRDADDR, &i_faces[i]) < 0)
} continue;
/* Just to clarify where we're getting the values from. */ /* moot check: only AF_INET returned (backwards compat.) */
sock_holder = (struct sockaddr_in *)&i_faces[i].ifr_broadaddr; if (i_faces[i].ifr_broadaddr.sa_family != AF_INET)
continue;
if (sock_holder != NULL) { struct sockaddr_in *sock4 = (struct sockaddr_in *)&i_faces[i].ifr_broadaddr;
IP_Port ip_port = {{{{sock_holder->sin_addr.s_addr}}, port, 0}}; IP_Port *ip_port = &broadcast_ip_port[broadcast_count];
sendpacket(net, ip_port, data, 1 + crypto_box_PUBLICKEYBYTES); ip_port->ip.family = AF_INET;
} ip_port->ip.ip4.in_addr = sock4->sin_addr;
ip_port->port = port;
broadcast_count++;
} }
close(sock); close(sock);
return 0;
} }
#endif
#endif /* Send packet to all IPv4 broadcast addresses
*
* return 1 if sent to at least one broadcast target.
* return 0 on failure to find any valid broadcast target.
*/
static uint32_t send_broadcasts(Networking_Core *net, uint16_t port, uint8_t *data, uint16_t length)
{
/* fetch only once? on every packet? every X seconds?
* old: every packet, new: once */
if (broadcast_count < 0)
fetch_broadcast_info(port);
if (!broadcast_count)
return 0;
int i;
for(i = 0; i < broadcast_count; i++)
sendpacket(net, broadcast_ip_port[i], data, 1 + crypto_box_PUBLICKEYBYTES);
return 1;
}
#endif /* __linux */
/* Return the broadcast ip. */ /* Return the broadcast ip. */
static IP broadcast_ip(sa_family_t family_socket, sa_family_t family_broadcast) static IP broadcast_ip(sa_family_t family_socket, sa_family_t family_broadcast)
@ -91,8 +114,6 @@ static IP broadcast_ip(sa_family_t family_socket, sa_family_t family_broadcast)
IP ip; IP ip;
ip_reset(&ip); ip_reset(&ip);
#ifdef TOX_ENABLE_IPV6
if (family_socket == AF_INET6) { if (family_socket == AF_INET6) {
if (family_broadcast == AF_INET6) { if (family_broadcast == AF_INET6) {
ip.family = AF_INET6; ip.family = AF_INET6;
@ -116,14 +137,6 @@ static IP broadcast_ip(sa_family_t family_socket, sa_family_t family_broadcast)
} }
} }
#else
if (family_socket == AF_INET)
if (family_broadcast == AF_INET)
ip.uint32 = INADDR_BROADCAST;
#endif
return ip; return ip;
} }
@ -132,13 +145,8 @@ static IP broadcast_ip(sa_family_t family_socket, sa_family_t family_broadcast)
*/ */
int LAN_ip(IP ip) int LAN_ip(IP ip)
{ {
#ifdef TOX_ENABLE_IPV6
if (ip.family == AF_INET) { if (ip.family == AF_INET) {
IP4 ip4 = ip.ip4; IP4 ip4 = ip.ip4;
#else
IP4 ip4 = ip;
#endif
/* Loopback. */ /* Loopback. */
if (ip4.uint8[0] == 127) if (ip4.uint8[0] == 127)
@ -161,9 +169,8 @@ int LAN_ip(IP ip)
&& ip4.uint8[2] != 255) && ip4.uint8[2] != 255)
return 0; return 0;
#ifdef TOX_ENABLE_IPV6 } else if (ip.family == AF_INET6) {
} else if (ip.family == AF_INET6)
{
/* autogenerated for each interface: FE80::* (up to FEBF::*) /* autogenerated for each interface: FE80::* (up to FEBF::*)
FF02::1 is - according to RFC 4291 - multicast all-nodes link-local */ FF02::1 is - according to RFC 4291 - multicast all-nodes link-local */
if (((ip.ip6.uint8[0] == 0xFF) && (ip.ip6.uint8[1] < 3) && (ip.ip6.uint8[15] == 1)) || if (((ip.ip6.uint8[0] == 0xFF) && (ip.ip6.uint8[1] < 3) && (ip.ip6.uint8[15] == 1)) ||
@ -179,8 +186,6 @@ int LAN_ip(IP ip)
} }
} }
#endif
return -1; return -1;
} }
@ -206,16 +211,12 @@ int send_LANdiscovery(uint16_t port, Net_Crypto *c)
memcpy(data + 1, c->self_public_key, crypto_box_PUBLICKEYBYTES); memcpy(data + 1, c->self_public_key, crypto_box_PUBLICKEYBYTES);
#ifdef __linux #ifdef __linux
#ifndef TOX_ENABLE_IPV6
send_broadcasts(c->lossless_udp->net, port, data, 1 + crypto_box_PUBLICKEYBYTES); send_broadcasts(c->lossless_udp->net, port, data, 1 + crypto_box_PUBLICKEYBYTES);
#endif
#endif #endif
int res = -1; int res = -1;
IP_Port ip_port; IP_Port ip_port;
ip_port.port = port; ip_port.port = port;
#ifdef TOX_ENABLE_IPV6
/* IPv6 multicast */ /* IPv6 multicast */
if (c->lossless_udp->net->family == AF_INET6) { if (c->lossless_udp->net->family == AF_INET6) {
ip_port.ip = broadcast_ip(AF_INET6, AF_INET6); ip_port.ip = broadcast_ip(AF_INET6, AF_INET6);
@ -227,9 +228,6 @@ int send_LANdiscovery(uint16_t port, Net_Crypto *c)
/* IPv4 broadcast (has to be IPv4-in-IPv6 mapping if socket is AF_INET6 */ /* IPv4 broadcast (has to be IPv4-in-IPv6 mapping if socket is AF_INET6 */
ip_port.ip = broadcast_ip(c->lossless_udp->net->family, AF_INET); ip_port.ip = broadcast_ip(c->lossless_udp->net->family, AF_INET);
#else
ip_port.ip = broadcast_ip(AF_INET, AF_INET);
#endif
if (ip_isset(&ip_port.ip)) if (ip_isset(&ip_port.ip))
if (sendpacket(c->lossless_udp->net, ip_port, data, 1 + crypto_box_PUBLICKEYBYTES)) if (sendpacket(c->lossless_udp->net, ip_port, data, 1 + crypto_box_PUBLICKEYBYTES))

30
toxcore/Lossless_UDP.c
View File

@ -119,24 +119,15 @@ static uint32_t handshake_id(Lossless_UDP *ludp, IP_Port source)
id ^= randtable_initget(ludp, i, *uint8); id ^= randtable_initget(ludp, i, *uint8);
i++; i++;
#ifdef TOX_ENABLE_IPV6
if (source.ip.family == AF_INET) { if (source.ip.family == AF_INET) {
IP4 ip4 = source.ip.ip4;
#else
IP4 ip4 = source.ip;
#endif
int k; int k;
for (k = 0; k < 4; k++) { for (k = 0; k < 4; k++) {
id ^= randtable_initget(ludp, i++, ip4.uint8[k]); id ^= randtable_initget(ludp, i++, source.ip.ip4.uint8[k]);
} }
#ifdef TOX_ENABLE_IPV6
} }
if (source.ip.family == AF_INET6) if (source.ip.family == AF_INET6) {
{
int k; int k;
for (k = 0; k < 16; k++) { for (k = 0; k < 16; k++) {
@ -144,8 +135,6 @@ static uint32_t handshake_id(Lossless_UDP *ludp, IP_Port source)
} }
} }
#endif
/* id can't be zero. */ /* id can't be zero. */
if (id == 0) if (id == 0)
id = 1; id = 1;
@ -160,21 +149,18 @@ static uint32_t handshake_id(Lossless_UDP *ludp, IP_Port source)
*/ */
static void change_handshake(Lossless_UDP *ludp, IP_Port source) static void change_handshake(Lossless_UDP *ludp, IP_Port source)
{ {
#ifdef TOX_ENABLE_IPV6
uint8_t rand; uint8_t rand;
if (source.ip.family == AF_INET) { if (source.ip.family == AF_INET) {
rand = 2 + random_int() % 4; rand = random_int() % 4;
} else if (source.ip.family == AF_INET6) { } else if (source.ip.family == AF_INET6) {
rand = 2 + random_int() % 16; rand = random_int() % 16;
} else { } else {
return; return;
} }
#else /* Forced to be more robust against strange definitions of sa_family_t */
uint8_t rand = 2 + random_int() % 4; ludp->randtable[2 + rand][((uint8_t *)&source.ip.ip6)[rand]] = random_int();
#endif
ludp->randtable[rand][((uint8_t *)&source.ip)[rand]] = random_int();
} }
/* /*
@ -467,8 +453,8 @@ uint32_t sendqueue(Lossless_UDP *ludp, int connection_id)
/* return number of packets in all queues waiting to be successfully sent. */ /* return number of packets in all queues waiting to be successfully sent. */
uint32_t sendqueue_total(Lossless_UDP *ludp) uint32_t sendqueue_total(Lossless_UDP *ludp)
{ {
uint32_t total = 0; uint32_t i, total = 0;
int i;
for(i = 0; i < ludp->connections.len; i++) { for(i = 0; i < ludp->connections.len; i++) {
Connection *connection = &tox_array_get(&ludp->connections, i, Connection); Connection *connection = &tox_array_get(&ludp->connections, i, Connection);
if (connection->status != 0) if (connection->status != 0)

6
toxcore/Lossless_UDP.h
View File

@ -134,14 +134,8 @@ typedef struct {
tox_array connections; tox_array connections;
/* Table of random numbers used in handshake_id. */ /* Table of random numbers used in handshake_id. */
#ifdef TOX_ENABLE_IPV6
/* IPv6 (16) + port (2)*/ /* IPv6 (16) + port (2)*/
uint32_t randtable[18][256]; uint32_t randtable[18][256];
#else
/* IPv4 (4) + port (2) */
uint32_t randtable[6][256];
#endif
} Lossless_UDP; } Lossless_UDP;
/* /*

48
toxcore/Messenger.c
View File

@ -1759,7 +1759,7 @@ static char *ID2String(uint8_t *client_id)
uint32_t i; uint32_t i;
for (i = 0; i < CLIENT_ID_SIZE; i++) for (i = 0; i < CLIENT_ID_SIZE; i++)
sprintf(&IDString[i], "%02X", client_id[i]); sprintf(&IDString[i * 2], "%02X", client_id[i]);
IDString[CLIENT_ID_SIZE * 2] = 0; IDString[CLIENT_ID_SIZE * 2] = 0;
return IDString; return IDString;
@ -1789,24 +1789,20 @@ void doMessenger(Messenger *m)
for (client = 0; client < LCLIENT_LIST; client++) { for (client = 0; client < LCLIENT_LIST; client++) {
Client_data *cptr = &m->dht->close_clientlist[client]; Client_data *cptr = &m->dht->close_clientlist[client];
IPPTsPng *assoc = NULL; IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &cptr->assoc;
#else
uint32_t a; uint32_t a;
for (a = 0, assoc = &cptr->assoc4; a < 2; a++, assoc = &cptr->assoc6) for (a = 0, assoc = &cptr->assoc4; a < 2; a++, assoc = &cptr->assoc6)
#endif if (ip_isset(&assoc->ip_port.ip)) {
if (ip_isset(&assoc->ip_port.ip)) { last_pinged = lastdump - assoc->last_pinged;
last_pinged = lastdump - assoc->last_pinged;
if (last_pinged > 999) if (last_pinged > 999)
last_pinged = 999; last_pinged = 999;
snprintf(logbuffer, sizeof(logbuffer), "C[%2u] %s:%u [%3u] %s\n", snprintf(logbuffer, sizeof(logbuffer), "C[%2u] %s:%u [%3u] %s\n",
client, ip_ntoa(&assoc->ip_port.ip), ntohs(assoc->ip_port.port), client, ip_ntoa(&assoc->ip_port.ip), ntohs(assoc->ip_port.port),
last_pinged, ID2String(cptr->client_id)); last_pinged, ID2String(cptr->client_id));
loglog(logbuffer); loglog(logbuffer);
} }
} }
loglog(" = = = = = = = = \n"); loglog(" = = = = = = = = \n");
@ -1850,25 +1846,21 @@ void doMessenger(Messenger *m)
for (client = 0; client < MAX_FRIEND_CLIENTS; client++) { for (client = 0; client < MAX_FRIEND_CLIENTS; client++) {
Client_data *cptr = &dhtfptr->client_list[client]; Client_data *cptr = &dhtfptr->client_list[client];
IPPTsPng *assoc = NULL; IPPTsPng *assoc = NULL;
#ifdef CLIENT_ONETOONE_IP
assoc = &cptr->assoc;
#else
uint32_t a; uint32_t a;
for (a = 0, assoc = &cptr->assoc4; a < 2; a++, assoc = &cptr->assoc6) for (a = 0, assoc = &cptr->assoc4; a < 2; a++, assoc = &cptr->assoc6)
#endif if (ip_isset(&assoc->ip_port.ip)) {
if (ip_isset(&assoc->ip_port.ip)) { last_pinged = lastdump - assoc->last_pinged;
last_pinged = lastdump - assoc->last_pinged;
if (last_pinged > 999) if (last_pinged > 999)
last_pinged = 999; last_pinged = 999;
snprintf(logbuffer, sizeof(logbuffer), "F[%2u] => C[%2u] %s:%u [%3u] %s\n", snprintf(logbuffer, sizeof(logbuffer), "F[%2u] => C[%2u] %s:%u [%3u] %s\n",
friend, client, ip_ntoa(&assoc->ip_port.ip), friend, client, ip_ntoa(&assoc->ip_port.ip),
ntohs(assoc->ip_port.port), last_pinged, ntohs(assoc->ip_port.port), last_pinged,
ID2String(cptr->client_id)); ID2String(cptr->client_id));
loglog(logbuffer); loglog(logbuffer);
} }
} }
} }

233
toxcore/network.c
View File

@ -45,7 +45,9 @@
static const char *inet_ntop(sa_family_t family, void *addr, char *buf, size_t bufsize) static const char *inet_ntop(sa_family_t family, void *addr, char *buf, size_t bufsize)
{ {
if (family == AF_INET) { if (family == AF_INET) {
struct sockaddr_in saddr = { 0 }; struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET; saddr.sin_family = AF_INET;
saddr.sin_addr = *(struct in_addr *)addr; saddr.sin_addr = *(struct in_addr *)addr;
@ -56,7 +58,9 @@ static const char *inet_ntop(sa_family_t family, void *addr, char *buf, size_t b
return buf; return buf;
} else if (family == AF_INET6) { } else if (family == AF_INET6) {
struct sockaddr_in6 saddr = { 0 }; struct sockaddr_in6 saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin6_family = AF_INET6; saddr.sin6_family = AF_INET6;
saddr.sin6_addr = *(struct in6_addr *)addr; saddr.sin6_addr = *(struct in6_addr *)addr;
@ -74,7 +78,8 @@ static const char *inet_ntop(sa_family_t family, void *addr, char *buf, size_t b
static int inet_pton(sa_family_t family, const char *addrString, void *addrbuf) static int inet_pton(sa_family_t family, const char *addrString, void *addrbuf)
{ {
if (family == AF_INET) { if (family == AF_INET) {
struct sockaddr_in saddr = { 0 }; struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
INT len = sizeof(saddr); INT len = sizeof(saddr);
@ -85,7 +90,8 @@ static int inet_pton(sa_family_t family, const char *addrString, void *addrbuf)
return 1; return 1;
} else if (family == AF_INET6) { } else if (family == AF_INET6) {
struct sockaddr_in6 saddr = { 0 }; struct sockaddr_in6 saddr;
memset(&saddr, 0, sizeof(saddr));
INT len = sizeof(saddr); INT len = sizeof(saddr);
@ -146,24 +152,19 @@ static void loglogdata(char *message, uint8_t *buffer, size_t buflen, IP_Port *i
*/ */
int sendpacket(Networking_Core *net, IP_Port ip_port, uint8_t *data, uint32_t length) int sendpacket(Networking_Core *net, IP_Port ip_port, uint8_t *data, uint32_t length)
{ {
#ifdef TOX_ENABLE_IPV6
/* socket AF_INET, but target IP NOT: can't send */ /* socket AF_INET, but target IP NOT: can't send */
if ((net->family == AF_INET) && (ip_port.ip.family != AF_INET)) if ((net->family == AF_INET) && (ip_port.ip.family != AF_INET))
return -1; return -1;
#endif
struct sockaddr_storage addr; struct sockaddr_storage addr;
size_t addrsize = 0; size_t addrsize = 0;
#ifdef TOX_ENABLE_IPV6
if (ip_port.ip.family == AF_INET) { if (ip_port.ip.family == AF_INET) {
if (net->family == AF_INET6) { if (net->family == AF_INET6) {
/* must convert to IPV4-in-IPV6 address */ /* must convert to IPV4-in-IPV6 address */
addrsize = sizeof(struct sockaddr_in6);
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr; struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr;
addrsize = sizeof(struct sockaddr_in6);
addr6->sin6_family = AF_INET6; addr6->sin6_family = AF_INET6;
addr6->sin6_port = ip_port.port; addr6->sin6_port = ip_port.port;
@ -180,48 +181,36 @@ int sendpacket(Networking_Core *net, IP_Port ip_port, uint8_t *data, uint32_t le
addr6->sin6_flowinfo = 0; addr6->sin6_flowinfo = 0;
addr6->sin6_scope_id = 0; addr6->sin6_scope_id = 0;
} else { } else {
IP4 ip4 = ip_port.ip.ip4;
#else
IP4 ip4 = ip_port.ip;
#endif
addrsize = sizeof(struct sockaddr_in);
struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr; struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr;
addrsize = sizeof(struct sockaddr_in);
addr4->sin_family = AF_INET; addr4->sin_family = AF_INET;
addr4->sin_addr = ip4.in_addr; addr4->sin_addr = ip_port.ip.ip4.in_addr;
addr4->sin_port = ip_port.port; addr4->sin_port = ip_port.port;
#ifdef TOX_ENABLE_IPV6
} }
} else if (ip_port.ip.family == AF_INET6) } else if (ip_port.ip.family == AF_INET6) {
{
addrsize = sizeof(struct sockaddr_in6);
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr; struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr;
addrsize = sizeof(struct sockaddr_in6);
addr6->sin6_family = AF_INET6; addr6->sin6_family = AF_INET6;
addr6->sin6_port = ip_port.port; addr6->sin6_port = ip_port.port;
addr6->sin6_addr = ip_port.ip.ip6.in6_addr; addr6->sin6_addr = ip_port.ip.ip6.in6_addr;
addr6->sin6_flowinfo = 0; addr6->sin6_flowinfo = 0;
addr6->sin6_scope_id = 0; addr6->sin6_scope_id = 0;
} else } else {
{
/* unknown address type*/ /* unknown address type*/
return -1; return -1;
} }
#endif
int res = sendto(net->sock, (char *) data, length, 0, (struct sockaddr *)&addr, addrsize); int res = sendto(net->sock, (char *) data, length, 0, (struct sockaddr *)&addr, addrsize);
#ifdef LOGGING #ifdef LOGGING
loglogdata("O=>", data, length, &ip_port, res); loglogdata("O=>", data, length, &ip_port, res);
#endif #endif
if (res == length) if ((res >= 0) && ((uint32_t)res == length))
net->send_fail_eagain = 0; net->send_fail_eagain = 0;
else if ((res < 0) && (errno == EWOULDBLOCK))
#ifdef WIN32
else if ((res < 0) && (errno == WSAEWOULDBLOCK))
#else
else if ((res < 0) && (errno == EAGAIN))
#endif
net->send_fail_eagain = current_time(); net->send_fail_eagain = current_time();
return res; return res;
@ -258,32 +247,21 @@ static int receivepacket(sock_t sock, IP_Port *ip_port, uint8_t *data, uint32_t
*length = (uint32_t)fail_or_len; *length = (uint32_t)fail_or_len;
#ifdef TOX_ENABLE_IPV6
if (addr.ss_family == AF_INET) { if (addr.ss_family == AF_INET) {
struct sockaddr_in *addr_in = (struct sockaddr_in *)&addr; struct sockaddr_in *addr_in = (struct sockaddr_in *)&addr;
ip_port->ip.family = addr_in->sin_family; ip_port->ip.family = addr_in->sin_family;
ip_port->ip.ip4.in_addr = addr_in->sin_addr; ip_port->ip.ip4.in_addr = addr_in->sin_addr;
ip_port->port = addr_in->sin_port; ip_port->port = addr_in->sin_port;
} else if (addr.ss_family == AF_INET6) { } else if (addr.ss_family == AF_INET6) {
struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)&addr; struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)&addr;
ip_port->ip.family = addr_in6->sin6_family; ip_port->ip.family = addr_in6->sin6_family;
ip_port->ip.ip6.in6_addr = addr_in6->sin6_addr; ip_port->ip.ip6.in6_addr = addr_in6->sin6_addr;
ip_port->port = addr_in6->sin6_port; ip_port->port = addr_in6->sin6_port;
} else } else
return -1; return -1;
#else
if (addr.ss_family == AF_INET) {
struct sockaddr_in *addr_in = (struct sockaddr_in *)&addr;
ip_port->ip.in_addr = addr_in->sin_addr;
ip_port->port = addr_in->sin_port;
} else
return -1;
#endif
#ifdef LOGGING #ifdef LOGGING
loglogdata("=>O", data, MAX_UDP_PACKET_SIZE, ip_port, *length); loglogdata("=>O", data, MAX_UDP_PACKET_SIZE, ip_port, *length);
#endif #endif
@ -393,10 +371,13 @@ int networking_wait_execute(uint8_t *data, uint16_t len, uint16_t milliseconds)
/* returns -1 on error, 0 on timeout, the socket on activity */ /* returns -1 on error, 0 on timeout, the socket on activity */
int res = select(nfds, &readfds, &writefds, &exceptfds, &timeout); int res = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
#ifdef LOGGING #ifdef LOGGING
sprintf(logbuffer, "select(%d): %d (%d, %s) - %d %d %d\n", milliseconds, res, errno, /* only dump if not timeout */
strerror(errno), FD_ISSET(s->sock, &readfds), FD_ISSET(s->sock, &writefds), if (res) {
FD_ISSET(s->sock, &exceptfds)); sprintf(logbuffer, "select(%d): %d (%d, %s) - %d %d %d\n", milliseconds, res, errno,
loglog(logbuffer); strerror(errno), FD_ISSET(s->sock, &readfds), FD_ISSET(s->sock, &writefds),
FD_ISSET(s->sock, &exceptfds));
loglog(logbuffer);
}
#endif #endif
if (FD_ISSET(s->sock, &writefds)) if (FD_ISSET(s->sock, &writefds))
@ -452,8 +433,6 @@ static void at_shutdown(void)
*/ */
Networking_Core *new_networking(IP ip, uint16_t port) Networking_Core *new_networking(IP ip, uint16_t port)
{ {
#ifdef TOX_ENABLE_IPV6
/* maybe check for invalid IPs like 224+.x.y.z? if there is any IP set ever */ /* maybe check for invalid IPs like 224+.x.y.z? if there is any IP set ever */
if (ip.family != AF_INET && ip.family != AF_INET6) { if (ip.family != AF_INET && ip.family != AF_INET6) {
#ifdef DEBUG #ifdef DEBUG
@ -462,8 +441,6 @@ Networking_Core *new_networking(IP ip, uint16_t port)
return NULL; return NULL;
} }
#endif
if (at_startup() != 0) if (at_startup() != 0)
return NULL; return NULL;
@ -472,11 +449,7 @@ Networking_Core *new_networking(IP ip, uint16_t port)
if (temp == NULL) if (temp == NULL)
return NULL; return NULL;
#ifdef TOX_ENABLE_IPV6
temp->family = ip.family; temp->family = ip.family;
#else
temp->family = AF_INET;
#endif
temp->port = 0; temp->port = 0;
/* Initialize our socket. */ /* Initialize our socket. */
@ -491,7 +464,7 @@ Networking_Core *new_networking(IP ip, uint16_t port)
return NULL; return NULL;
} }
#else #else /* !WIN32 */
if (temp->sock < 0) { if (temp->sock < 0) {
#ifdef DEBUG #ifdef DEBUG
@ -501,7 +474,7 @@ Networking_Core *new_networking(IP ip, uint16_t port)
return NULL; return NULL;
} }
#endif #endif /* !WIN32 */
/* Functions to increase the size of the send and receive UDP buffers. /* Functions to increase the size of the send and receive UDP buffers.
*/ */
@ -519,33 +492,28 @@ Networking_Core *new_networking(IP ip, uint16_t port)
u_long mode = 1; u_long mode = 1;
/* ioctl(sock, FIONBIO, &mode); */ /* ioctl(sock, FIONBIO, &mode); */
ioctlsocket(temp->sock, FIONBIO, &mode); ioctlsocket(temp->sock, FIONBIO, &mode);
#else #else /* !WIN32 */
fcntl(temp->sock, F_SETFL, O_NONBLOCK, 1); fcntl(temp->sock, F_SETFL, O_NONBLOCK, 1);
#endif #endif /* !WIN32 */
/* Bind our socket to port PORT and the given IP address (usually 0.0.0.0 or ::) */ /* Bind our socket to port PORT and the given IP address (usually 0.0.0.0 or ::) */
uint16_t *portptr = NULL; uint16_t *portptr = NULL;
struct sockaddr_storage addr; struct sockaddr_storage addr;
size_t addrsize; size_t addrsize;
#ifdef TOX_ENABLE_IPV6
if (temp->family == AF_INET) { if (temp->family == AF_INET) {
IP4 ip4 = ip.ip4;
#else
IP4 ip4 = ip;
#endif
addrsize = sizeof(struct sockaddr_in);
struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr; struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr;
addrsize = sizeof(struct sockaddr_in);
addr4->sin_family = AF_INET; addr4->sin_family = AF_INET;
addr4->sin_port = 0; addr4->sin_port = 0;
addr4->sin_addr = ip4.in_addr; addr4->sin_addr = ip.ip4.in_addr;
portptr = &addr4->sin_port; portptr = &addr4->sin_port;
#ifdef TOX_ENABLE_IPV6 } else if (temp->family == AF_INET6) {
} else if (temp->family == AF_INET6)
{
addrsize = sizeof(struct sockaddr_in6);
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr; struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr;
addrsize = sizeof(struct sockaddr_in6);
addr6->sin6_family = AF_INET6; addr6->sin6_family = AF_INET6;
addr6->sin6_port = 0; addr6->sin6_port = 0;
addr6->sin6_addr = ip.ip6.in6_addr; addr6->sin6_addr = ip.ip6.in6_addr;
@ -560,22 +528,38 @@ Networking_Core *new_networking(IP ip, uint16_t port)
if (ip.family == AF_INET6) if (ip.family == AF_INET6)
{ {
char ipv6only = 0; char ipv6only = 0;
socklen_t optsize = sizeof(ipv6only);
#ifdef LOGGING #ifdef LOGGING
errno = 0; errno = 0;
int res =
#endif #endif
setsockopt(temp->sock, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&ipv6only, sizeof(ipv6only)); int res = getsockopt(temp->sock, IPPROTO_IPV6, IPV6_V6ONLY, &ipv6only, &optsize);
if ((res == 0) && (ipv6only == 0)) {
#ifdef LOGGING #ifdef LOGGING
loglog("Dual-stack socket: enabled per default.\n");
if (res < 0) {
sprintf(logbuffer,
"Failed to enable dual-stack on IPv6 socket, won't be able to receive from/send to IPv4 addresses. (%u, %s)\n",
errno, strerror(errno));
loglog(logbuffer);
} else
loglog("Embedded IPv4 addresses enabled successfully.\n");
#endif #endif
} else {
ipv6only = 0;
#ifdef LOGGING
if (res < 0) {
sprintf(logbuffer, "Dual-stack socket: Failed to query default. (%d, %s)\n",
errno, strerror(errno));
loglog(logbuffer);
}
errno = 0;
res =
#endif
setsockopt(temp->sock, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&ipv6only, sizeof(ipv6only));
#ifdef LOGGING
if (res < 0) {
sprintf(logbuffer,
"Dual-stack socket: Failed to enable, won't be able to receive from/send to IPv4 addresses. (%u, %s)\n",
errno, strerror(errno));
loglog(logbuffer);
} else
loglog("Dual-stack socket: Enabled successfully.\n");
#endif
}
/* multicast local nodes */ /* multicast local nodes */
struct ipv6_mreq mreq; struct ipv6_mreq mreq;
@ -601,8 +585,6 @@ Networking_Core *new_networking(IP ip, uint16_t port)
#endif #endif
} }
#endif
/* a hanging program or a different user might block the standard port; /* a hanging program or a different user might block the standard port;
* as long as it isn't a parameter coming from the commandline, * as long as it isn't a parameter coming from the commandline,
* try a few ports after it, to see if we can find a "free" one * try a few ports after it, to see if we can find a "free" one
@ -685,14 +667,16 @@ int ip_equal(IP *a, IP *b)
if (!a || !b) if (!a || !b)
return 0; return 0;
#ifdef TOX_ENABLE_IPV6
/* same family */ /* same family */
if (a->family == b->family) { if (a->family == b->family) {
if (a->family == AF_INET) if (a->family == AF_INET)
return (a->ip4.in_addr.s_addr == b->ip4.in_addr.s_addr); return (a->ip4.in_addr.s_addr == b->ip4.in_addr.s_addr);
else if (a->family == AF_INET6) else if (a->family == AF_INET6)
#ifdef WIN32
return IN6_ADDR_EQUAL(&a->ip6.in6_addr, &b->ip6.in6_addr);
#else
return IN6_ARE_ADDR_EQUAL(&a->ip6.in6_addr, &b->ip6.in6_addr); return IN6_ARE_ADDR_EQUAL(&a->ip6.in6_addr, &b->ip6.in6_addr);
#endif
else else
return 0; return 0;
} }
@ -707,9 +691,6 @@ int ip_equal(IP *a, IP *b)
} }
return 0; return 0;
#else
return (a->uint32 == b->uint32);
#endif
}; };
/* ipport_equal /* ipport_equal
@ -735,11 +716,7 @@ void ip_reset(IP *ip)
if (!ip) if (!ip)
return; return;
#ifdef TOX_ENABLE_IPV6
memset(ip, 0, sizeof(IP)); memset(ip, 0, sizeof(IP));
#else
ip->uint32 = 0;
#endif
}; };
/* nulls out ip, sets family according to flag */ /* nulls out ip, sets family according to flag */
@ -748,12 +725,8 @@ void ip_init(IP *ip, uint8_t ipv6enabled)
if (!ip) if (!ip)
return; return;
#ifdef TOX_ENABLE_IPV6
memset(ip, 0, sizeof(IP)); memset(ip, 0, sizeof(IP));
ip->family = ipv6enabled ? AF_INET6 : AF_INET; ip->family = ipv6enabled ? AF_INET6 : AF_INET;
#else
ip->uint32 = 0;
#endif
}; };
/* checks if ip is valid */ /* checks if ip is valid */
@ -762,11 +735,7 @@ int ip_isset(IP *ip)
if (!ip) if (!ip)
return 0; return 0;
#ifdef TOX_ENABLE_IPV6
return (ip->family != 0); return (ip->family != 0);
#else
return (ip->uint32 != 0);
#endif
}; };
/* checks if ip is valid */ /* checks if ip is valid */
@ -808,27 +777,23 @@ static char addresstext[96];
const char *ip_ntoa(IP *ip) const char *ip_ntoa(IP *ip)
{ {
if (ip) { if (ip) {
#ifdef TOX_ENABLE_IPV6
if (ip->family == AF_INET) { if (ip->family == AF_INET) {
addresstext[0] = 0; /* returns standard quad-dotted notation */
struct in_addr *addr = (struct in_addr *)&ip->ip4; struct in_addr *addr = (struct in_addr *)&ip->ip4;
addresstext[0] = 0;
inet_ntop(ip->family, addr, addresstext, sizeof(addresstext)); inet_ntop(ip->family, addr, addresstext, sizeof(addresstext));
} else if (ip->family == AF_INET6) { } else if (ip->family == AF_INET6) {
addresstext[0] = '['; /* returns hex-groups enclosed into square brackets */
struct in6_addr *addr = (struct in6_addr *)&ip->ip6; struct in6_addr *addr = (struct in6_addr *)&ip->ip6;
addresstext[0] = '[';
inet_ntop(ip->family, addr, &addresstext[1], sizeof(addresstext) - 3); inet_ntop(ip->family, addr, &addresstext[1], sizeof(addresstext) - 3);
size_t len = strlen(addresstext); size_t len = strlen(addresstext);
addresstext[len] = ']'; addresstext[len] = ']';
addresstext[len + 1] = 0; addresstext[len + 1] = 0;
} else } else
snprintf(addresstext, sizeof(addresstext), "(IP invalid, family %u)", ip->family); snprintf(addresstext, sizeof(addresstext), "(IP invalid, family %u)", ip->family);
#else
addresstext[0] = 0;
struct in_addr *addr = (struct in_addr *)&ip;
inet_ntop(AF_INET, addr, addresstext, sizeof(addresstext));
#endif
} else } else
snprintf(addresstext, sizeof(addresstext), "(IP invalid: NULL)"); snprintf(addresstext, sizeof(addresstext), "(IP invalid: NULL)");
@ -856,7 +821,6 @@ int addr_parse_ip(const char *address, IP *to)
if (!address || !to) if (!address || !to)
return 0; return 0;
#ifdef TOX_ENABLE_IPV6
struct in_addr addr4; struct in_addr addr4;
if (1 == inet_pton(AF_INET, address, &addr4)) { if (1 == inet_pton(AF_INET, address, &addr4)) {
@ -873,16 +837,6 @@ int addr_parse_ip(const char *address, IP *to)
return 1; return 1;
}; };
#else
struct in_addr addr4;
if (1 == inet_pton(AF_INET, address, &addr4)) {
to->in_addr = addr4;
return 1;
};
#endif
return 0; return 0;
}; };
@ -909,12 +863,7 @@ int addr_resolve(const char *address, IP *to, IP *extra)
if (!address || !to) if (!address || !to)
return 0; return 0;
sa_family_t family; sa_family_t family = to->family;
#ifdef TOX_ENABLE_IPV6
family = to->family;
#else
family = AF_INET;
#endif
struct addrinfo *server = NULL; struct addrinfo *server = NULL;
struct addrinfo *walker = NULL; struct addrinfo *walker = NULL;
@ -935,36 +884,25 @@ int addr_resolve(const char *address, IP *to, IP *extra)
return 0; return 0;
} }
#ifdef TOX_ENABLE_IPV6
IP4 ip4; IP4 ip4;
memset(&ip4, 0, sizeof(ip4)); memset(&ip4, 0, sizeof(ip4));
IP6 ip6; IP6 ip6;
memset(&ip6, 0, sizeof(ip6)); memset(&ip6, 0, sizeof(ip6));
#endif
for (walker = server; (walker != NULL) && (rc != 3); walker = walker->ai_next) { for (walker = server; (walker != NULL) && (rc != 3); walker = walker->ai_next) {
switch (walker->ai_family) { switch (walker->ai_family) {
case AF_INET: case AF_INET:
if (walker->ai_family == family) { /* AF_INET requested, done */ if (walker->ai_family == family) { /* AF_INET requested, done */
struct sockaddr_in *addr = (struct sockaddr_in *)walker->ai_addr; struct sockaddr_in *addr = (struct sockaddr_in *)walker->ai_addr;
#ifdef TOX_ENABLE_IPV6
to->ip4.in_addr = addr->sin_addr; to->ip4.in_addr = addr->sin_addr;
#else
to->in_addr = addr->sin_addr;
#endif
rc = 3; rc = 3;
} } else if (!(rc & 1)) { /* AF_UNSPEC requested, store away */
#ifdef TOX_ENABLE_IPV6
else if (!(rc & 1)) { /* AF_UNSPEC requested, store away */
struct sockaddr_in *addr = (struct sockaddr_in *)walker->ai_addr; struct sockaddr_in *addr = (struct sockaddr_in *)walker->ai_addr;
ip4.in_addr = addr->sin_addr; ip4.in_addr = addr->sin_addr;
rc |= 1; rc |= 1;
} }
#endif
break; /* switch */ break; /* switch */
#ifdef TOX_ENABLE_IPV6
case AF_INET6: case AF_INET6:
if (walker->ai_family == family) { /* AF_INET6 requested, done */ if (walker->ai_family == family) { /* AF_INET6 requested, done */
@ -982,12 +920,9 @@ int addr_resolve(const char *address, IP *to, IP *extra)
} }
break; /* switch */ break; /* switch */
#endif
} }
} }
#ifdef TOX_ENABLE_IPV6
if (to->family == AF_UNSPEC) { if (to->family == AF_UNSPEC) {
if (rc & 2) { if (rc & 2) {
to->family = AF_INET6; to->family = AF_INET6;
@ -1004,9 +939,6 @@ int addr_resolve(const char *address, IP *to, IP *extra)
rc = 0; rc = 0;
} }
#endif
freeaddrinfo(server); freeaddrinfo(server);
return rc; return rc;
} }
@ -1044,10 +976,11 @@ static void loglogdata(char *message, uint8_t *buffer, size_t buflen, IP_Port *i
data[0] = buflen > 4 ? ntohl(*(uint32_t *)&buffer[1]) : 0; data[0] = buflen > 4 ? ntohl(*(uint32_t *)&buffer[1]) : 0;
data[1] = buflen > 7 ? ntohl(*(uint32_t *)&buffer[5]) : 0; data[1] = buflen > 7 ? ntohl(*(uint32_t *)&buffer[5]) : 0;
/* Windows doesn't necessarily know %zu */
if (res < 0) { if (res < 0) {
int written = snprintf(logbuffer, sizeof(logbuffer), "[%2u] %s %3hu%c %s:%hu (%u: %s) | %04x%04x\n", snprintf(logbuffer, sizeof(logbuffer), "[%2u] %s %3hu%c %s:%hu (%u: %s) | %04x%04x\n",
buffer[0], message, (buflen < 999 ? (uint16_t)buflen : 999), 'E', buffer[0], message, (buflen < 999 ? (uint16_t)buflen : 999), 'E',
ip_ntoa(&ip_port->ip), port, errno, strerror(errno), data[0], data[1]); ip_ntoa(&ip_port->ip), port, errno, strerror(errno), data[0], data[1]);
} else if ((res > 0) && ((size_t)res <= buflen)) } else if ((res > 0) && ((size_t)res <= buflen))
snprintf(logbuffer, sizeof(logbuffer), "[%2u] %s %3zu%c %s:%hu (%u: %s) | %04x%04x\n", snprintf(logbuffer, sizeof(logbuffer), "[%2u] %s %3zu%c %s:%hu (%u: %s) | %04x%04x\n",
buffer[0], message, (res < 999 ? (size_t)res : 999), ((size_t)res < buflen ? '<' : '='), buffer[0], message, (res < 999 ? (size_t)res : 999), ((size_t)res < buflen ? '<' : '='),

30
toxcore/network.h
View File

@ -40,14 +40,11 @@
#include <ws2tcpip.h> #include <ws2tcpip.h>
typedef unsigned int sock_t; typedef unsigned int sock_t;
typedef INT sa_family_t; /* sa_family_t is the sockaddr_in / sockaddr_in6 family field */
typedef short sa_family_t;
#ifndef IN6_ARE_ADDR_EQUAL #ifndef EWOULDBLOCK
#define IN6_ARE_ADDR_EQUAL(a,b) \ #define EWOULDBLOCK WSAEWOULDBLOCK
((((__const uint32_t *) (a))[0] == ((__const uint32_t *) (b))[0]) \
&& (((__const uint32_t *) (a))[1] == ((__const uint32_t *) (b))[1]) \
&& (((__const uint32_t *) (a))[2] == ((__const uint32_t *) (b))[2]) \
&& (((__const uint32_t *) (a))[3] == ((__const uint32_t *) (b))[3]))
#endif #endif
#else // Linux includes #else // Linux includes
@ -103,7 +100,6 @@ typedef int sock_t;
/* Current time, unix format */ /* Current time, unix format */
#define unix_time() ((uint64_t)time(NULL)) #define unix_time() ((uint64_t)time(NULL))
typedef union { typedef union {
uint8_t uint8[4]; uint8_t uint8[4];
uint16_t uint16[2]; uint16_t uint16[2];
@ -124,7 +120,7 @@ typedef struct {
IP4 ip4; IP4 ip4;
IP6 ip6; IP6 ip6;
}; };
} IPAny; } IP;
typedef union { typedef union {
struct { struct {
@ -136,24 +132,12 @@ typedef union {
uint8_t uint8[8]; uint8_t uint8[8];
} IP4_Port; } IP4_Port;
/* will replace IP_Port as soon as the complete infrastructure is in place
* removed the unused union and padding also */
typedef struct { typedef struct {
IPAny ip; IP ip;
uint16_t port; uint16_t port;
} IPAny_Port; } IP_Port;
/* #undef TOX_ENABLE_IPV6 */
#define TOX_ENABLE_IPV6
#ifdef TOX_ENABLE_IPV6
#define TOX_ENABLE_IPV6_DEFAULT 1 #define TOX_ENABLE_IPV6_DEFAULT 1
typedef IPAny IP;
typedef IPAny_Port IP_Port;
#else
#define TOX_ENABLE_IPV6_DEFAULT 0
typedef IP4 IP;
typedef IP4_Port IP_Port;
#endif
/* ip_ntoa /* ip_ntoa
* converts ip into a string * converts ip into a string

31
toxcore/tox.h
View File

@ -36,7 +36,9 @@
#include <windows.h> #include <windows.h>
#include <ws2tcpip.h> #include <ws2tcpip.h>
typedef INT sa_family_t; /* sa_family_t is the sockaddr_in / sockaddr_in6 family field */
typedef short sa_family_t;
#ifndef true #ifndef true
#define true 1 #define true 1
#endif #endif
@ -69,7 +71,6 @@ typedef union {
uint32_t i; uint32_t i;
} tox_IP4; } tox_IP4;
typedef union { typedef union {
uint8_t uint8[16]; uint8_t uint8[16];
uint16_t uint16[8]; uint16_t uint16[8];
@ -83,36 +84,16 @@ typedef struct {
tox_IP4 ip4; tox_IP4 ip4;
tox_IP6 ip6; tox_IP6 ip6;
}; };
} tox_IPAny; } tox_IP;
typedef union {
struct {
tox_IP4 ip;
uint16_t port;
/* Not used for anything right now. */
uint16_t padding;
};
uint8_t uint8[8];
} tox_IP4_Port;
/* will replace IP_Port as soon as the complete infrastructure is in place /* will replace IP_Port as soon as the complete infrastructure is in place
* removed the unused union and padding also */ * removed the unused union and padding also */
typedef struct { typedef struct {
tox_IPAny ip; tox_IP ip;
uint16_t port; uint16_t port;
} tox_IPAny_Port; } tox_IP_Port;
/* #undef TOX_ENABLE_IPV6 */
#define TOX_ENABLE_IPV6
#ifdef TOX_ENABLE_IPV6
#define TOX_ENABLE_IPV6_DEFAULT 1 #define TOX_ENABLE_IPV6_DEFAULT 1
typedef tox_IPAny tox_IP;
typedef tox_IPAny_Port tox_IP_Port;
#else
#define TOX_ENABLE_IPV6_DEFAULT 0
typedef tox_IP4 tox_IP;
typedef tox_IP4_Port tox_IP_Port;
#endif
/* Errors for m_addfriend /* Errors for m_addfriend

3
toxcore/util.c
View File

@ -109,6 +109,7 @@ void loginit(uint16_t port)
struct tm *tm = localtime(&starttime); struct tm *tm = localtime(&starttime);
/* "%F %T" might not be Windows compatible */
if (strftime(logbuffer + 32, sizeof(logbuffer) - 32, "%F %T", tm)) if (strftime(logbuffer + 32, sizeof(logbuffer) - 32, "%F %T", tm))
sprintf(logbuffer, "%u-%s.log", ntohs(port), logbuffer + 32); sprintf(logbuffer, "%u-%s.log", ntohs(port), logbuffer + 32);
else else
@ -149,7 +150,7 @@ void loglog(char *text)
if (!logbufferpredata) if (!logbufferpredata)
return; return;
if (len + logbufferprehead - logbufferpredata + 16U < logbufferprelen) { if (len + (logbufferprehead - logbufferpredata) + 16U < logbufferprelen) {
size_t logpos = logbufferprehead - logbufferpredata; size_t logpos = logbufferprehead - logbufferpredata;
size_t lennew = logbufferprelen * 1.4; size_t lennew = logbufferprelen * 1.4;
logbufferpredata = realloc(logbufferpredata, lennew); logbufferpredata = realloc(logbufferpredata, lennew);