static int syncppp_exit(struct net_device *dev)
{
struct comx_channel *ch = dev->priv;
sppp_detach(dev);
dev->flags = 0;
dev->type = 0;
dev->mtu = 0;
ch->LINE_rx = NULL;
ch->LINE_tx = NULL;
ch->LINE_status = NULL;
ch->LINE_open = NULL;
ch->LINE_close = NULL;
ch->LINE_xmit = NULL;
ch->LINE_header = NULL;
ch->LINE_rebuild_header = NULL;
ch->LINE_statistics = NULL;
kfree(ch->LINE_privdata);
ch->LINE_privdata = NULL;
MOD_DEC_USE_COUNT;
return 0;
}
static int ppp_open(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
int (*old_ioctl)(struct net_device *, struct ifreq *, int);
int result;
dev->ml_priv = &state(hdlc)->syncppp_ptr;
state(hdlc)->syncppp_ptr = &state(hdlc)->pppdev;
state(hdlc)->pppdev.dev = dev;
old_ioctl = dev->do_ioctl;
state(hdlc)->old_change_mtu = dev->change_mtu;
sppp_attach(&state(hdlc)->pppdev);
/* sppp_attach nukes them. We don't need syncppp's ioctl */
dev->do_ioctl = old_ioctl;
state(hdlc)->pppdev.sppp.pp_flags &= ~PP_CISCO;
dev->type = ARPHRD_PPP;
result = sppp_open(dev);
if (result) {
sppp_detach(dev);
return result;
}
return 0;
}
static int ppp_open(hdlc_device *hdlc)
{
struct net_device *dev = hdlc_to_dev(hdlc);
void *old_ioctl;
int result;
dev->priv = &hdlc->state.ppp.syncppp_ptr;
hdlc->state.ppp.syncppp_ptr = &hdlc->state.ppp.pppdev;
hdlc->state.ppp.pppdev.dev = dev;
old_ioctl = dev->do_ioctl;
hdlc->state.ppp.old_change_mtu = dev->change_mtu;
sppp_attach(&hdlc->state.ppp.pppdev);
/* sppp_attach nukes them. We don't need syncppp's ioctl */
dev->do_ioctl = old_ioctl;
hdlc->state.ppp.pppdev.sppp.pp_flags &= ~PP_CISCO;
dev->type = ARPHRD_PPP;
result = sppp_open(dev);
if (result) {
sppp_detach(dev);
return result;
}
return 0;
}
static int hdlc_close(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
hdlc->close(hdlc);
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_close(hdlc);
#ifdef CONFIG_HDLC_PPP
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_close(dev);
sppp_detach(dev);
dev->rebuild_header = NULL;
dev->change_mtu = hdlc_change_mtu;
dev->mtu = HDLC_MAX_MTU;
dev->hard_header_len = 16;
}
#endif
#ifdef CONFIG_HDLC_X25
else if (mode_is(hdlc, MODE_X25))
lapb_unregister(hdlc);
#endif
return 0;
}
static int hdlc_open(struct device *dev)
{
hdlc_device *hdlc=dev_to_hdlc(dev);
int result;
if (hdlc->mode==MODE_NONE)
return -ENOSYS;
memset(&(hdlc->stats), 0, sizeof(struct net_device_stats));
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_open(hdlc);
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_attach(&hdlc->pppdev);
/* sppp_attach nukes them. We don't need syncppp's ioctl */
/* Anyway, I'm going to replace it with ppp_synctty.c */
dev->do_ioctl = hdlc_ioctl;
hdlc->pppdev.sppp.pp_flags&=~PP_CISCO;
dev->type=ARPHRD_PPP;
result = sppp_open(dev);
if (result) {
sppp_detach(dev);
return result;
}
}
result=hdlc->open(hdlc);
if (result) {
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_close(hdlc);
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_close(dev);
sppp_detach(dev);
dev->rebuild_header=NULL;
dev->change_mtu=hdlc_change_mtu;
dev->mtu=HDLC_MAX_MTU;
dev->hard_header_len=16;
}
}
return result;
}
void
wanpipe_generic_unregister(struct ifnet *ifp)
{
log(LOG_INFO, "%s: Unregister interface!\n", ifp->if_xname);
sppp_detach(ifp);
if_free_sadl(ifp);
if_detach(ifp);
}
static void ppp_close(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
sppp_close(dev);
sppp_detach(dev);
dev->change_mtu = state(hdlc)->old_change_mtu;
dev->mtu = HDLC_MAX_MTU;
dev->hard_header_len = 16;
}
static void ppp_close(hdlc_device *hdlc)
{
struct net_device *dev = hdlc_to_dev(hdlc);
sppp_close(dev);
sppp_detach(dev);
dev->rebuild_header = NULL;
dev->change_mtu = hdlc->state.ppp.old_change_mtu;
dev->mtu = HDLC_MAX_MTU;
dev->hard_header_len = 16;
}
static int hdlc_close(struct device *dev)
{
hdlc_device *hdlc=dev_to_hdlc(dev);
hdlc->close(hdlc);
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_close(hdlc);
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_close(dev);
sppp_detach(dev);
dev->rebuild_header=NULL;
dev->change_mtu=hdlc_change_mtu;
dev->mtu=HDLC_MAX_MTU;
dev->hard_header_len=16;
}
return 0;
}
static int hdlc_open(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
int result;
if (hdlc->mode == MODE_NONE)
return -ENOSYS;
memset(&(hdlc->stats), 0, sizeof(struct net_device_stats));
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_open(hdlc);
#ifdef CONFIG_HDLC_PPP
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_attach(&hdlc->pppdev);
/* sppp_attach nukes them. We don't need syncppp's ioctl */
dev->do_ioctl = hdlc_ioctl;
hdlc->pppdev.sppp.pp_flags &= ~PP_CISCO;
dev->type = ARPHRD_PPP;
result = sppp_open(dev);
if (result) {
sppp_detach(dev);
return result;
}
}
#endif
#ifdef CONFIG_HDLC_X25
else if (mode_is(hdlc, MODE_X25)) {
struct lapb_register_struct cb;
cb.connect_confirmation = x25_connected;
cb.connect_indication = x25_connected;
cb.disconnect_confirmation = x25_disconnected;
cb.disconnect_indication = x25_disconnected;
cb.data_indication = x25_data_indication;
cb.data_transmit = x25_data_transmit;
result = lapb_register(hdlc, &cb);
if (result != LAPB_OK)
return result;
}
#endif
result = hdlc->open(hdlc);
if (result) {
if (mode_is(hdlc, MODE_FR | MODE_SOFT) ||
mode_is(hdlc, MODE_CISCO | MODE_SOFT))
fr_cisco_close(hdlc);
#ifdef CONFIG_HDLC_PPP
else if (mode_is(hdlc, MODE_PPP | MODE_SOFT)) {
sppp_close(dev);
sppp_detach(dev);
dev->rebuild_header = NULL;
dev->change_mtu = hdlc_change_mtu;
dev->mtu = HDLC_MAX_MTU;
dev->hard_header_len = 16;
}
#endif
#ifdef CONFIG_HDLC_X25
else if (mode_is(hdlc, MODE_X25))
lapb_unregister(hdlc);
#endif
}
return result;
}
