status_t
get_domain_datalink_protocols(Interface* interface, net_domain* domain)
{
TRACE(("%s(interface %p, domain %d)\n", __FUNCTION__, interface,
domain->family));
struct chain* chain;
{
MutexLocker _(sChainLock);
chain = chain::Lookup(sDatalinkProtocolChains, domain->family,
interface->DeviceInterface()->device->type, 0);
if (chain == NULL)
return EAFNOSUPPORT;
}
domain_datalink* datalink = interface->DomainDatalink(domain->family);
if (datalink == NULL)
return B_BAD_VALUE;
if (datalink->first_protocol != NULL)
return B_NAME_IN_USE;
// create net_protocol objects for the protocols in the chain
status_t status = chain->Acquire();
if (status != B_OK)
return status;
net_datalink_protocol* last = NULL;
for (int32 i = 0; chain->infos[i] != NULL; i++) {
net_datalink_protocol* protocol;
status_t status = ((net_datalink_protocol_module_info*)
chain->infos[i])->init_protocol(interface, domain, &protocol);
if (status != B_OK) {
// free protocols we already initialized
uninit_domain_datalink_protocols(datalink);
chain->Release();
return status;
}
protocol->module = (net_datalink_protocol_module_info*)chain->infos[i];
protocol->interface = interface;
protocol->domain = domain;
protocol->next = NULL;
if (last == NULL) {
datalink->first_protocol = protocol;
datalink->first_info = protocol->module;
} else
last->next = protocol;
last = protocol;
}
return B_OK;
}
status_t
get_domain_datalink_protocols(net_interface* _interface)
{
struct net_interface_private* interface = (net_interface_private*)_interface;
struct chain* chain;
{
MutexLocker _(sChainLock);
chain = chain::Lookup(sDatalinkProtocolChains, interface->domain->family,
interface->device_interface->device->type, 0);
if (chain == NULL)
return EAFNOSUPPORT;
}
// create net_protocol objects for the protocols in the chain
status_t status = chain->Acquire();
if (status < B_OK)
return status;
net_datalink_protocol* last = NULL;
for (int32 i = 0; chain->infos[i] != NULL; i++) {
net_datalink_protocol* protocol;
status_t status = ((net_datalink_protocol_module_info*)
chain->infos[i])->init_protocol(interface, &protocol);
if (status < B_OK) {
// free protocols we already initialized
uninit_domain_datalink_protocols(interface);
chain->Release();
return status;
}
protocol->module = (net_datalink_protocol_module_info*)chain->infos[i];
protocol->interface = interface;
protocol->next = NULL;
if (last == NULL) {
interface->first_protocol = protocol;
interface->first_info = protocol->module;
} else
last->next = protocol;
last = protocol;
}
return B_OK;
}
status_t
put_domain_datalink_protocols(net_interface* _interface)
{
struct net_interface_private* interface = (net_interface_private*)_interface;
struct chain* chain;
{
MutexLocker _(sChainLock);
chain = chain::Lookup(sDatalinkProtocolChains, interface->domain->family,
interface->device_interface->device->type, 0);
if (chain == NULL)
return B_ERROR;
}
uninit_domain_datalink_protocols(interface);
chain->Release();
return B_OK;
}
status_t
put_domain_datalink_protocols(Interface* interface, net_domain* domain)
{
TRACE(("%s(interface %p, domain %d)\n", __FUNCTION__, interface,
domain->family));
struct chain* chain;
{
MutexLocker _(sChainLock);
chain = chain::Lookup(sDatalinkProtocolChains, domain->family,
interface->DeviceInterface()->device->type, 0);
if (chain == NULL)
return B_ERROR;
}
uninit_domain_datalink_protocols(interface->DomainDatalink(domain->family));
chain->Release();
return B_OK;
}
