static void _c2s_time_checks(c2s_t c2s) {
sess_t sess;
time_t now;
union xhashv xhv;
now = time(NULL);
if(xhash_iter_first(c2s->sessions))
do {
xhv.sess_val = &sess;
xhash_iter_get(c2s->sessions, NULL, NULL, xhv.val);
if(!sess->s) continue;
if(c2s->io_check_idle > 0 && now > sess->last_activity + c2s->io_check_idle) {
log_write(c2s->log, LOG_NOTICE, "[%d] [%s, port=%d] timed out", sess->fd->fd, sess->ip, sess->port);
sx_error(sess->s, stream_err_HOST_GONE, "connection timed out");
sx_close(sess->s);
continue;
}
if(c2s->io_check_keepalive > 0 && now > sess->last_activity + c2s->io_check_keepalive && sess->s->state >= state_STREAM) {
log_debug(ZONE, "sending keepalive for %d", sess->fd->fd);
sx_raw_write(sess->s, " ", 1);
}
if(sess->rate != NULL && sess->rate->bad != 0 && rate_check(sess->rate) != 0) {
/* read the pending bytes when rate limit is no longer in effect */
log_debug(ZONE, "reading throttled %d", sess->fd->fd);
sess->s->want_read = 1;
sx_can_read(sess->s);
}
} while(xhash_iter_next(c2s->sessions));
}
int sm_mio_callback(mio_t m, mio_action_t a, mio_fd_t fd, void *data, void *arg) {
sm_t sm = (sm_t) arg;
int nbytes;
switch (a) {
case action_READ:
log_debug(ZONE, "read action on fd %d", fd->fd);
ioctl(fd->fd, FIONREAD, &nbytes);
if(nbytes == 0) {
sx_kill(sm->router);
return 0;
}
return sx_can_read(sm->router);
case action_WRITE:
log_debug(ZONE, "write action on fd %d", fd->fd);
return sx_can_write(sm->router);
case action_CLOSE:
log_debug(ZONE, "close action on fd %d", fd->fd);
log_write(sm->log, LOG_NOTICE, "connection to router closed");
sm_lost_router = 1;
/* we're offline */
sm->online = 0;
break;
case action_ACCEPT:
break;
}
return 0;
}
int router_mio_callback(mio_t m, mio_action_t a, mio_fd_t fd, void *data, void *arg) {
component_t comp = (component_t) arg;
router_t r = (router_t) arg;
struct sockaddr_storage sa;
socklen_t namelen = sizeof(sa);
int port, nbytes;
switch(a) {
case action_READ:
log_debug(ZONE, "read action on fd %d", fd->fd);
/* they did something */
comp->last_activity = time(NULL);
ioctl(fd->fd, FIONREAD, &nbytes);
if(nbytes == 0) {
sx_kill(comp->s);
return 0;
}
return sx_can_read(comp->s);
case action_WRITE:
log_debug(ZONE, "write action on fd %d", fd->fd);
/* update activity timestamp */
comp->last_activity = time(NULL);
return sx_can_write(comp->s);
case action_CLOSE:
log_debug(ZONE, "close action on fd %d", fd->fd);
r = comp->r;
log_write(r->log, LOG_NOTICE, "[%s, port=%d] disconnect", comp->ip, comp->port);
/* unbind names */
xhash_walk(comp->routes, _router_route_unbind_walker, (void *) comp);
/* deregister component */
xhash_zap(r->components, comp->ipport);
xhash_free(comp->routes);
if(comp->tq != NULL)
/* !!! bounce packets */
jqueue_free(comp->tq);
rate_free(comp->rate);
jqueue_push(comp->r->dead, (void *) comp->s, 0);
free(comp);
break;
case action_ACCEPT:
log_debug(ZONE, "accept action on fd %d", fd->fd);
getpeername(fd->fd, (struct sockaddr *) &sa, &namelen);
port = j_inet_getport(&sa);
log_write(r->log, LOG_NOTICE, "[%s, port=%d] connect", (char *) data, port);
if(_router_accept_check(r, fd, (char *) data) != 0)
return 1;
comp = (component_t) calloc(1, sizeof(struct component_st));
comp->r = r;
comp->fd = fd;
snprintf(comp->ip, INET6_ADDRSTRLEN, "%s", (char *) data);
comp->port = port;
snprintf(comp->ipport, INET6_ADDRSTRLEN + 6, "%s:%d", comp->ip, comp->port);
comp->s = sx_new(r->sx_env, fd->fd, _router_sx_callback, (void *) comp);
mio_app(m, fd, router_mio_callback, (void *) comp);
if(r->byte_rate_total != 0)
comp->rate = rate_new(r->byte_rate_total, r->byte_rate_seconds, r->byte_rate_wait);
comp->routes = xhash_new(51);
/* register component */
log_debug(ZONE, "new component (%p) \"%s\"", comp, comp->ipport);
xhash_put(r->components, comp->ipport, (void *) comp);
#ifdef HAVE_SSL
sx_server_init(comp->s, SX_SSL_STARTTLS_OFFER | SX_SASL_OFFER);
#else
sx_server_init(comp->s, SX_SASL_OFFER);
#endif
break;
}
return 0;
}
int in_mio_callback(mio_t m, mio_action_t a, mio_fd_t fd, void *data, void *arg) {
conn_t in = (conn_t) arg;
s2s_t s2s = (s2s_t) arg;
struct sockaddr_storage sa;
int namelen = sizeof(sa), port, nbytes;
char ipport[INET6_ADDRSTRLEN + 17];
switch(a) {
case action_READ:
log_debug(ZONE, "read action on fd %d", fd->fd);
ioctl(fd->fd, FIONREAD, &nbytes);
if(nbytes == 0) {
sx_kill(in->s);
return 0;
}
return sx_can_read(in->s);
case action_WRITE:
log_debug(ZONE, "write action on fd %d", fd->fd);
return sx_can_write(in->s);
case action_CLOSE:
log_debug(ZONE, "close action on fd %d", fd->fd);
/* !!! logging */
log_write(in->s2s->log, LOG_NOTICE, "[%d] [%s, port=%d] disconnect, packets: %i", fd->fd, in->ip, in->port, in->packet_count);
jqueue_push(in->s2s->dead, (void *) in->s, 0);
/* remove from open streams hash if online, or open connections if not */
if (in->online)
xhash_zap(in->s2s->in, in->key);
else {
snprintf(ipport, INET6_ADDRSTRLEN + 16, "%s/%d", in->ip, in->port);
xhash_zap(in->s2s->in_accept, ipport);
}
jqueue_push(in->s2s->dead_conn, (void *) in, 0);
break;
case action_ACCEPT:
s2s = (s2s_t) arg;
log_debug(ZONE, "accept action on fd %d", fd->fd);
getpeername(fd->fd, (struct sockaddr *) &sa, &namelen);
port = j_inet_getport(&sa);
log_write(s2s->log, LOG_NOTICE, "[%d] [%s, port=%d] incoming connection", fd->fd, (char *) data, port);
/* new conn */
in = (conn_t) calloc(1, sizeof(struct conn_st));
in->s2s = s2s;
strncpy(in->ip, (char *) data, INET6_ADDRSTRLEN);
in->port = port;
in->states = xhash_new(101);
in->states_time = xhash_new(101);
in->fd = fd;
in->init_time = time(NULL);
in->s = sx_new(s2s->sx_env, in->fd->fd, _in_sx_callback, (void *) in);
mio_app(m, in->fd, in_mio_callback, (void *) in);
if(s2s->stanza_size_limit != 0)
in->s->rbytesmax = s2s->stanza_size_limit;
/* add to incoming connections hash */
snprintf(ipport, INET6_ADDRSTRLEN + 16, "%s/%d", in->ip, in->port);
xhash_put(s2s->in_accept, pstrdup(xhash_pool(s2s->in_accept),ipport), (void *) in);
#ifdef HAVE_SSL
sx_server_init(in->s, S2S_DB_HEADER | ((s2s->sx_ssl != NULL) ? SX_SSL_STARTTLS_OFFER : 0) );
#else
sx_server_init(in->s, S2S_DB_HEADER);
#endif
break;
}
return 0;
}