static void client_destroy(struct client *client)
{
char **app;
i_set_failure_prefix("imap-urlauth[%s](%s): ",
my_pid, client->access_user);
if (client->url != NULL) {
/* deinitialize url */
i_stream_close(client->input);
o_stream_close(client->output);
(void)client_run_url(client);
i_assert(client->url == NULL);
}
imap_urlauth_worker_client_count--;
DLLIST_REMOVE(&imap_urlauth_worker_clients, client);
if (client->urlauth_ctx != NULL)
imap_urlauth_deinit(&client->urlauth_ctx);
if (client->mail_user != NULL)
mail_user_unref(&client->mail_user);
if (client->io != NULL)
io_remove(&client->io);
if (client->ctrl_io != NULL)
io_remove(&client->ctrl_io);
if (client->to_idle != NULL)
timeout_remove(&client->to_idle);
if (client->input != NULL)
i_stream_destroy(&client->input);
if (client->output != NULL)
o_stream_destroy(&client->output);
if (client->ctrl_input != NULL)
i_stream_destroy(&client->ctrl_input);
if (client->ctrl_output != NULL)
o_stream_destroy(&client->ctrl_output);
if (client->fd_in >= 0)
net_disconnect(client->fd_in);
if (client->fd_out >= 0 && client->fd_in != client->fd_out)
net_disconnect(client->fd_out);
if (client->fd_ctrl >= 0)
net_disconnect(client->fd_ctrl);
if (client->service_user != NULL)
mail_storage_service_user_free(&client->service_user);
i_free(client->access_user);
array_foreach_modifiable(&client->access_apps, app)
i_free(*app);
array_free(&client->access_apps);
i_free(client);
imap_urlauth_worker_refresh_proctitle();
master_service_client_connection_destroyed(master_service);
}
/**
* connect to server and returns the socket
*/
socket_t net_connect(const char *server_name, int server_port) {
socket_t sock;
uint32_t inaddr;
struct sockaddr_in ad;
net_init();
memset(&ad, 0, sizeof(ad));
ad.sin_family = AF_INET;
if ((inaddr = inet_addr(server_name)) == INADDR_NONE) {
struct hostent *hp = gethostbyname(server_name);
if (hp == NULL) {
return -1;
}
memcpy(&ad.sin_addr, hp->h_addr, hp->h_length);
} else {
memcpy(&ad.sin_addr, &inaddr, sizeof(inaddr));
}
ad.sin_port = htons(server_port);
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock <= 0) {
return sock;
}
if (connect(sock, (struct sockaddr *)&ad, sizeof(ad)) < 0) {
net_disconnect(sock);
return -1;
}
return sock;
}
void auth_client_connection_destroy(struct auth_client_connection **_conn)
{
struct auth_client_connection *conn = *_conn;
*_conn = NULL;
if (conn->fd == -1)
return;
DLLIST_REMOVE(&auth_client_connections, conn);
i_stream_close(conn->input);
o_stream_close(conn->output);
if (conn->io != NULL)
io_remove(&conn->io);
net_disconnect(conn->fd);
conn->fd = -1;
if (conn->request_handler != NULL) {
auth_request_handler_abort_requests(conn->request_handler);
auth_request_handler_destroy(&conn->request_handler);
}
master_service_client_connection_destroyed(master_service);
auth_client_connection_unref(&conn);
}
/* input function: DCC CHAT - someone tried to connect to our socket */
static void dcc_chat_listen(CHAT_DCC_REC *dcc)
{
IPADDR ip;
GIOChannel *handle;
int port;
g_return_if_fail(IS_DCC_CHAT(dcc));
/* accept connection */
handle = net_accept(dcc->handle, &ip, &port);
if (handle == NULL)
return;
/* TODO: add paranoia check - see dcc-files.c */
net_disconnect(dcc->handle);
g_source_remove(dcc->tagconn);
dcc->tagconn = -1;
dcc->starttime = time(NULL);
dcc->handle = handle;
dcc->sendbuf = net_sendbuffer_create(handle, 0);
memcpy(&dcc->addr, &ip, sizeof(IPADDR));
net_ip2host(&dcc->addr, dcc->addrstr);
dcc->port = port;
dcc->tagread = g_input_add(handle, G_INPUT_READ,
(GInputFunction) dcc_chat_input, dcc);
signal_emit("dcc connected", 1, dcc);
}
static void connect_downlink(BOTNET_REC *botnet, int handle,
IPADDR *ip, const char *host)
{
BOT_DOWNLINK_REC *downlink;
BOT_REC *bot;
g_return_if_fail(botnet != NULL);
/* identify the bot who's trying to connect.. */
downlink = bot_downlink_find(botnet, ip, host);
if (downlink == NULL || downlink->password == NULL) {
/* unknown bot, close connection /
bot didn't have password, don't let it connect to us */
net_disconnect(handle);
return;
}
bot = g_new0(BOT_REC, 1);
bot->botnet = botnet;
bot->link = downlink;
g_node_append_data(botnet->bots, bot);
/* connected.. */
bot->handle = handle;
bot->read_tag = g_input_add(handle, G_INPUT_READ, (GInputFunction) sig_bot_read, bot);
}
/* input function: DCC SEND - someone tried to connect to our socket */
static void dcc_send_connected(SEND_DCC_REC *dcc)
{
GIOChannel *handle;
IPADDR addr;
int port;
/* accept connection */
handle = net_accept(dcc->handle, &addr, &port);
if (handle == NULL)
return;
/* TODO: some kind of paranoia check would be nice. it would check
that the host of the nick who we sent the request matches the
address who connected us. */
net_disconnect(dcc->handle);
g_source_remove(dcc->tagconn);
dcc->tagconn = -1;
dcc->starttime = time(NULL);
dcc->handle = handle;
memcpy(&dcc->addr, &addr, sizeof(IPADDR));
net_ip2host(&dcc->addr, dcc->addrstr);
dcc->port = port;
dcc->tagread = g_input_add(handle, G_INPUT_READ,
(GInputFunction) dcc_send_read_size, dcc);
dcc->tagwrite = g_input_add(handle, G_INPUT_WRITE,
(GInputFunction) dcc_send_data, dcc);
signal_emit("dcc connected", 1, dcc);
}
void lmtp_client_close(struct lmtp_client *client)
{
if (client->dns_lookup != NULL)
dns_lookup_abort(&client->dns_lookup);
if (client->to != NULL)
timeout_remove(&client->to);
if (client->io != NULL)
io_remove(&client->io);
if (client->input != NULL)
i_stream_close(client->input);
if (client->output != NULL)
o_stream_close(client->output);
if (client->fd != -1) {
net_disconnect(client->fd);
client->fd = -1;
}
if (client->data_input != NULL)
i_stream_unref(&client->data_input);
client->output_finished = TRUE;
if (!client->finish_called) {
client->finish_called = TRUE;
client->finish_callback(client->finish_context);
}
}
/*---------------------------------------------------------------------*/
BOOL net_tcp_connect_to_host (Network* self, char* ip_address, int port)
{
int error;
if(self->file_descriptor != -1) net_disconnect(self);
error = self->local_file_descriptor = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if(error == -1)
{
perror("Unable to create a TCP socket");
goto out;
}
self->remote_port = port;
net_init_remote_port(self, port);
inet_pton(AF_INET, ip_address, &(self->remote_address.sin_addr));
error = connect(self->local_file_descriptor, (struct sockaddr* )&self->remote_address,
self->remote_address_length);
if(error == -1)
{
perror("Unable to connect to a remote host");
goto out;
}
self->file_descriptor = self->local_file_descriptor;
out:
return (error == -1) ? 0 : 1;
}
static void on_input(netc_t *netc)
{
DNDSMessage_t *msg;
struct session *session;
mbuf_t **mbuf_itr;
pdu_PR pdu;
mbuf_itr = &netc->queue_msg;
session = (struct session *)netc->ext_ptr;
if (session->state == SESSION_STATE_PURGE) {
jlog(L_NOTICE, "purge node: %s", session->cert_name);
net_disconnect(netc);
return;
}
while (*mbuf_itr != NULL) {
msg = (DNDSMessage_t *)(*mbuf_itr)->ext_buf;
DNDSMessage_get_pdu(msg, &pdu);
switch (pdu) {
case pdu_PR_dnm: /* DNDS protocol */
dispatch_operation(session, msg);
break;
case pdu_PR_ethernet: /* Ethernet */
forward_ethernet(session, msg);
break;
default:
/* TODO disconnect session */
jlog(L_ERROR, "invalid PDU");
break;
}
mbuf_del(mbuf_itr, *mbuf_itr);
}
}
/* Destroy DCC record */
void dcc_destroy(DCC_REC *dcc)
{
g_return_if_fail(dcc != NULL);
if (dcc->destroyed) return;
dcc_conns = g_slist_remove(dcc_conns, dcc);
dcc_remove_chat_refs(dcc);
dcc->destroyed = TRUE;
signal_emit("dcc destroyed", 1, dcc);
if (dcc->fhandle != -1) close(dcc->fhandle);
if (dcc->handle != -1) net_disconnect(dcc->handle);
if (dcc->tagread != -1) g_source_remove(dcc->tagread);
if (dcc->tagwrite != -1) g_source_remove(dcc->tagwrite);
if (dcc->type == DCC_TYPE_CHAT)
line_split_free((LINEBUF_REC *) dcc->databuf);
else if (dcc->databuf != NULL)
g_free(dcc->databuf);
g_free_not_null(dcc->file);
g_free_not_null(dcc->ircnet);
g_free(dcc->mynick);
g_free(dcc->nick);
g_free(dcc->arg);
g_free(dcc);
}
static void login_proxy_disconnect(struct login_proxy *proxy)
{
if (proxy->to != NULL)
timeout_remove(&proxy->to);
if (proxy->to_notify != NULL)
timeout_remove(&proxy->to_notify);
if (!proxy->num_waiting_connections_updated) {
i_assert(proxy->state_rec->num_waiting_connections > 0);
proxy->state_rec->num_waiting_connections--;
}
if (proxy->connected) {
i_assert(proxy->state_rec->num_proxying_connections > 0);
proxy->state_rec->num_proxying_connections--;
}
if (proxy->server_io != NULL)
io_remove(&proxy->server_io);
if (proxy->server_input != NULL)
i_stream_destroy(&proxy->server_input);
if (proxy->server_output != NULL)
o_stream_destroy(&proxy->server_output);
if (proxy->server_fd != -1)
net_disconnect(proxy->server_fd);
}
static void login_proxy_free_final(struct login_proxy *proxy)
{
if (proxy->delayed_disconnect) {
DLLIST_REMOVE(&login_proxies_disconnecting, proxy);
i_assert(proxy->state_rec->num_delayed_client_disconnects > 0);
if (--proxy->state_rec->num_delayed_client_disconnects == 0)
proxy->state_rec->num_disconnects_since_ts = 0;
timeout_remove(&proxy->to);
}
if (proxy->client_io != NULL)
io_remove(&proxy->client_io);
if (proxy->client_input != NULL)
i_stream_destroy(&proxy->client_input);
if (proxy->client_output != NULL)
o_stream_destroy(&proxy->client_output);
if (proxy->client_fd != -1)
net_disconnect(proxy->client_fd);
if (proxy->ssl_server_proxy != NULL) {
ssl_proxy_destroy(proxy->ssl_server_proxy);
ssl_proxy_free(&proxy->ssl_server_proxy);
}
i_free(proxy->host);
i_free(proxy);
}
void master_login_auth_disconnect(struct master_login_auth *auth)
{
struct master_login_auth_request *request;
while (auth->request_head != NULL) {
request = auth->request_head;
DLLIST2_REMOVE(&auth->request_head,
&auth->request_tail, request);
request_internal_failure(request,
"Disconnected from auth server, aborting");
i_free(request);
}
hash_table_clear(auth->requests, FALSE);
if (auth->to != NULL)
timeout_remove(&auth->to);
if (auth->io != NULL)
io_remove(&auth->io);
if (auth->fd != -1) {
i_stream_destroy(&auth->input);
o_stream_destroy(&auth->output);
net_disconnect(auth->fd);
auth->fd = -1;
}
auth->version_received = FALSE;
}
/*---------------------------------------------------------------------*/
BOOL net_udp_connect(Network* self, int receive_port)
{
int error, b=1;
if(self->file_descriptor != -1) net_disconnect(self);
error = self->file_descriptor = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(error == -1)
{
perror("unable to create a UDP socket\n");
goto out;
}
self->remote_port = receive_port;
error = net_bind_port(self->file_descriptor, (char*)"0.0.0.0", receive_port);
if(error == -1)
{
perror("unable to bind UDP socket\n");
goto out;
}
error = setsockopt(self->file_descriptor, SOL_SOCKET, SO_BROADCAST, &b, sizeof(b));
out:
return (error == -1) ? NO : YES;
}
static void net_disconnect_remove(NET_DISCONNECT_REC *rec)
{
disconnects = g_slist_remove(disconnects, rec);
g_source_remove(rec->tag);
net_disconnect(rec->handle);
g_free(rec);
}
void Runtime::debugStop() {
if (g_debugee != -1) {
net_print(g_debugee, "q\n");
net_disconnect(g_debugee);
g_debugee = -1;
appLog("Closed debug session");
}
}
/*---------------------------------------------------------------------*/
Network* net_destroy (Network* self)
{
if(self != NULL)
{
net_disconnect(self);
free(self);
}
return (Network*) NULL;
}
void remove_client(PLUGIN_DATA *data, CLIENT_REC *rec)
{
data->clients = g_slist_remove(data->clients, rec);
net_disconnect(rec->handle);
g_source_remove(rec->tag);
line_split_free(rec->buffer);
g_free(rec);
}
/* Destroy the buffer. `close' specifies if socket handle should be closed. */
void net_sendbuffer_destroy(NET_SENDBUF_REC *rec, int close)
{
buffers = g_slist_remove(buffers, rec);
if (rec->send_tag != -1) g_source_remove(rec->send_tag);
if (close) net_disconnect(rec->handle);
g_free_not_null(rec->buffer);
g_free(rec);
}
void plugin_proxy_listen_deinit(PLUGIN_DATA *data)
{
g_return_if_fail(data != NULL);
g_string_free(next_line, TRUE);
while (data->clients != NULL)
remove_client(data, data->clients->data);
net_disconnect(data->listen_handle);
g_source_remove(data->listen_tag);
}
static void replicator_connection_disconnect(struct replicator_connection *conn)
{
if (conn->fd == -1)
return;
replicator_abort_all_requests(conn);
io_remove(&conn->io);
i_stream_destroy(&conn->input);
o_stream_destroy(&conn->output);
net_disconnect(conn->fd);
conn->fd = -1;
}
static void remove_listen(LISTEN_REC *rec)
{
proxy_listens = g_slist_remove(proxy_listens, rec);
while (rec->clients != NULL)
remove_client(rec->clients->data);
net_disconnect(rec->handle);
g_source_remove(rec->tag);
g_free(rec->ircnet);
g_free(rec);
}
static void on_connect(netc_t *netc)
{
struct session *session;
session = session_new();
if (session == NULL) {
net_disconnect(netc);
return;
}
session->netc = netc;
netc->ext_ptr = session;
}
// disconnect from parameters
void net_disconnect_params(void) {
int i;
int j;
int t = net->numIns; // test target
for(i=0; i<net->numParams; ++i) {
for(j=0; j<net->numOuts; ++j) {
if(net->outs[j].target == t) {
net_disconnect(j);
}
}
t++;
}
}
static int ssl_proxy_destroy(struct ssl_proxy *proxy)
{
if (--proxy->refcount > 0)
return TRUE;
hash_table_remove(ssl_proxies, proxy);
gnutls_deinit(proxy->session);
if (proxy->io_ssl != NULL)
io_remove(proxy->io_ssl);
if (proxy->io_plain != NULL)
io_remove(proxy->io_plain);
(void)net_disconnect(proxy->fd_ssl);
(void)net_disconnect(proxy->fd_plain);
i_free(proxy);
main_unref();
return FALSE;
}
static void
client_connected_finish(const struct master_service_connection *conn)
{
struct client *client;
struct ssl_proxy *proxy;
struct ip_addr local_ip;
const struct login_settings *set;
const struct master_service_ssl_settings *ssl_set;
unsigned int local_port;
pool_t pool;
int fd_ssl;
void **other_sets;
if (net_getsockname(conn->fd, &local_ip, &local_port) < 0) {
memset(&local_ip, 0, sizeof(local_ip));
local_port = 0;
}
pool = pool_alloconly_create("login client", 8*1024);
set = login_settings_read(pool, &local_ip,
&conn->remote_ip, NULL, &ssl_set, &other_sets);
if (!ssl_connections && !conn->ssl) {
client = client_create(conn->fd, FALSE, pool,
set, ssl_set, other_sets,
&local_ip, &conn->remote_ip);
} else {
fd_ssl = ssl_proxy_alloc(conn->fd, &conn->remote_ip, pool,
set, ssl_set, &proxy);
if (fd_ssl == -1) {
net_disconnect(conn->fd);
pool_unref(&pool);
master_service_client_connection_destroyed(master_service);
return;
}
client = client_create(fd_ssl, TRUE, pool,
set, ssl_set, other_sets,
&local_ip, &conn->remote_ip);
client->ssl_proxy = proxy;
ssl_proxy_set_client(proxy, client);
ssl_proxy_start(proxy);
}
client->real_remote_port = client->remote_port = conn->remote_port;
client->real_local_port = client->local_port = local_port;
if (auth_client_to != NULL)
timeout_remove(&auth_client_to);
}
// destroy last operator created
s16 net_pop_op(void) {
const s16 opIdx = net->numOps - 1;
op_t* op = net->ops[opIdx];
int i=0;
int x, y;
app_pause();
// bail if system op
if(net_op_flag (opIdx, eOpFlagSys)) { return 1; }
// de-init
op_deinit(op);
// store the global index of the first input
x = net_op_in_idx(opIdx, 0);
y = x + op->numInputs;
// check if anything connects here
for(i=0; i<net->numOuts; i++) {
// this check works b/c we know this is last op in list
if( net->outs[i].target >= x ) {
if( net->outs[i].target < y) {
net_disconnect(i);
} else {
// net->outs[i].target -= op->numInputs;
net_connect(i, net->outs[i].target - op->numInputs);
}
}
}
// erase input nodes
while(x < y) {
net_init_inode(x++);
}
// store the global index of the first output
x = net_op_out_idx(opIdx, 0);
y = x + op->numOutputs;
// erase output nodes
while(x < y) {
net_init_onode(x++);
}
net->numIns -= op->numInputs;
net->numOuts -= op->numOutputs;
net->opPoolOffset -= op_registry[op->type].size;
net->numOps -= 1;
app_resume();
return 0;
}
void bot_disconnect(BOT_REC *bot)
{
bot->disconnect = TRUE;
signal_emit("bot disconnected", 1, bot);
if (bot->read_tag != -1) {
g_source_remove(bot->read_tag);
bot->read_tag = -1;
}
if (bot->handle != -1) {
net_disconnect(bot->handle);
bot->handle = -1;
}
}
static void sig_host_got(RESOLVED_NAME_REC *name, BOT_CONNECT_REC *rec)
{
BOTNET_REC *botnet;
botnet = botnet_find(rec->botnet);
if (botnet == NULL || !botnet->connected) {
/* this botnet isn't connected anymore.. */
net_disconnect(rec->handle);
} else {
connect_downlink(botnet, rec->handle, &rec->ip,
name->error ? NULL : name->name);
}
g_free(rec->botnet);
g_free(rec);
}
void server_connect_unref(SERVER_CONNECT_REC *conn)
{
g_return_if_fail(IS_SERVER_CONNECT(conn));
if (--conn->refcount > 0)
return;
if (conn->refcount < 0) {
g_warning("Connection '%s' refcount = %d",
conn->tag, conn->refcount);
}
CHAT_PROTOCOL(conn)->destroy_server_connect(conn);
if (conn->connect_handle != NULL)
net_disconnect(conn->connect_handle);
g_free_not_null(conn->proxy);
g_free_not_null(conn->proxy_string);
g_free_not_null(conn->proxy_string_after);
g_free_not_null(conn->proxy_password);
g_free_not_null(conn->tag);
g_free_not_null(conn->address);
g_free_not_null(conn->chatnet);
g_free_not_null(conn->own_ip4);
g_free_not_null(conn->own_ip6);
g_free_not_null(conn->password);
g_free_not_null(conn->nick);
g_free_not_null(conn->username);
g_free_not_null(conn->realname);
g_free_not_null(conn->tls_cert);
g_free_not_null(conn->tls_pkey);
g_free_not_null(conn->tls_pass);
g_free_not_null(conn->tls_cafile);
g_free_not_null(conn->tls_capath);
g_free_not_null(conn->tls_ciphers);
g_free_not_null(conn->tls_pinned_cert);
g_free_not_null(conn->tls_pinned_pubkey);
g_free_not_null(conn->channels);
g_free_not_null(conn->away_reason);
conn->type = 0;
g_free(conn);
}