/** Report connection classes to a client.
* @param[in] sptr Client requesting statistics.
* @param[in] sd Stats descriptor for request (ignored).
* @param[in] param Extra parameter from user (ignored).
*/
void
report_classes(struct Client *sptr, const struct StatDesc *sd,
char *param)
{
struct ConnectionClass *cltmp;
for (cltmp = connClassList; cltmp; cltmp = cltmp->next)
send_reply(sptr, RPL_STATSYLINE, (cltmp->valid ? 'Y' : 'y'),
ConClass(cltmp), PingFreq(cltmp), ConFreq(cltmp),
MaxLinks(cltmp), MaxSendq(cltmp), Links(cltmp) - 1);
}
struct Class *
make_class(void)
{
struct Class *tmp;
tmp = rb_malloc(sizeof(struct Class));
ConFreq(tmp) = DEFAULT_CONNECTFREQUENCY;
PingFreq(tmp) = DEFAULT_PINGFREQUENCY;
MaxUsers(tmp) = 1;
MaxSendq(tmp) = DEFAULT_SENDQ;
tmp->ip_limits = rb_new_patricia(PATRICIA_BITS);
return tmp;
}
/** Initialize the connection class list.
* A connection class named "default" is created, with ping frequency,
* connection frequency, maximum links and max SendQ values from the
* corresponding configuration features.
*/
void init_class(void)
{
if (!connClassList) {
connClassList = (struct ConnectionClass*) make_class();
connClassList->next = 0;
}
/* We had better not try and free this... */
ConClass(connClassList) = "default";
PingFreq(connClassList) = feature_int(FEAT_PINGFREQUENCY);
ConFreq(connClassList) = feature_int(FEAT_CONNECTFREQUENCY);
MaxLinks(connClassList) = feature_int(FEAT_MAXIMUM_LINKS);
MaxSendq(connClassList) = feature_uint(FEAT_DEFAULTMAXSENDQLENGTH);
connClassList->valid = 1;
Links(connClassList) = 1;
}
/** Make sure we have a connection class named \a name.
* If one does not exist, create it. Then set its ping frequency,
* connection frequency, maximum link count, and max SendQ according
* to the parameters.
* @param[in] name Connection class name.
* @param[in] ping Ping frequency for clients in this class.
* @param[in] confreq Connection frequency for clients.
* @param[in] maxli Maximum link count for class.
* @param[in] sendq Max SendQ for clients.
*/
void add_class(char *name, unsigned int ping, unsigned int confreq,
unsigned int maxli, unsigned int sendq)
{
struct ConnectionClass* p;
Debug((DEBUG_DEBUG, "Add Class %s: cf: %u pf: %u ml: %u sq: %d",
name, confreq, ping, maxli, sendq));
assert(name != NULL);
p = do_find_class(name, 1);
if (!p)
p = make_class();
else
MyFree(ConClass(p));
ConClass(p) = name;
ConFreq(p) = confreq;
PingFreq(p) = ping;
MaxLinks(p) = maxli;
MaxSendq(p) = (sendq > 0U) ?
sendq : feature_uint(FEAT_DEFAULTMAXSENDQLENGTH);
p->valid = 1;
}
/** Unlink (and dereference) invalid connection classes.
* This is used in combination with class_mark_delete() during rehash
* to get rid of connection classes that are no longer in the
* configuration.
*/
void class_delete_marked(void)
{
struct ConnectionClass* cl;
struct ConnectionClass* prev;
Debug((DEBUG_DEBUG, "Class check:"));
for (prev = cl = connClassList; cl; cl = prev->next) {
Debug((DEBUG_DEBUG, "Class %s : CF: %d PF: %d ML: %d LI: %d SQ: %d",
ConClass(cl), ConFreq(cl), PingFreq(cl), MaxLinks(cl),
Links(cl), MaxSendq(cl)));
/*
* unlink marked classes, delete unreferenced ones
*/
if (cl->valid || Links(cl) > 1)
prev = cl;
else
{
prev->next = cl->next;
free_class(cl);
}
}
}
/*
* close_connection
* Close the physical connection. This function must make
* MyConnect(client_p) == FALSE, and set client_p->from == NULL.
*/
void
close_connection(struct Client *client_p)
{
struct ConfItem *conf;
struct AccessItem *aconf;
struct ClassItem *aclass;
assert(NULL != client_p);
if (!IsDead(client_p))
{
/* attempt to flush any pending dbufs. Evil, but .. -- adrian */
/* there is still a chance that we might send data to this socket
* even if it is marked as blocked (COMM_SELECT_READ handler is called
* before COMM_SELECT_WRITE). Let's try, nothing to lose.. -adx
*/
ClearSendqBlocked(client_p);
send_queued_write(client_p);
}
if (IsServer(client_p))
{
++ServerStats.is_sv;
ServerStats.is_sbs += client_p->localClient->send.bytes;
ServerStats.is_sbr += client_p->localClient->recv.bytes;
ServerStats.is_sti += CurrentTime - client_p->firsttime;
/* XXX Does this even make any sense at all anymore?
* scheduling a 'quick' reconnect could cause a pile of
* nick collides under TSora protocol... -db
*/
/*
* If the connection has been up for a long amount of time, schedule
* a 'quick' reconnect, else reset the next-connect cycle.
*/
if ((conf = find_conf_exact(SERVER_TYPE,
client_p->name, client_p->username,
client_p->host)))
{
/*
* Reschedule a faster reconnect, if this was a automatically
* connected configuration entry. (Note that if we have had
* a rehash in between, the status has been changed to
* CONF_ILLEGAL). But only do this if it was a "good" link.
*/
aconf = (struct AccessItem *)map_to_conf(conf);
aclass = (struct ClassItem *)map_to_conf(aconf->class_ptr);
aconf->hold = time(NULL);
aconf->hold += (aconf->hold - client_p->since > HANGONGOODLINK) ?
HANGONRETRYDELAY : ConFreq(aclass);
if (nextconnect > aconf->hold)
nextconnect = aconf->hold;
}
}
else if (IsClient(client_p))
{
++ServerStats.is_cl;
ServerStats.is_cbs += client_p->localClient->send.bytes;
ServerStats.is_cbr += client_p->localClient->recv.bytes;
ServerStats.is_cti += CurrentTime - client_p->firsttime;
}
else
++ServerStats.is_ni;
#ifdef HAVE_LIBCRYPTO
if (client_p->localClient->fd.ssl)
{
SSL_set_shutdown(client_p->localClient->fd.ssl, SSL_RECEIVED_SHUTDOWN);
if (!SSL_shutdown(client_p->localClient->fd.ssl))
SSL_shutdown(client_p->localClient->fd.ssl);
}
#endif
if (client_p->localClient->fd.flags.open)
fd_close(&client_p->localClient->fd);
if (HasServlink(client_p))
{
if (client_p->localClient->ctrlfd.flags.open)
fd_close(&client_p->localClient->ctrlfd);
}
dbuf_clear(&client_p->localClient->buf_sendq);
dbuf_clear(&client_p->localClient->buf_recvq);
MyFree(client_p->localClient->passwd);
detach_conf(client_p, CONF_TYPE);
client_p->from = NULL; /* ...this should catch them! >:) --msa */
}