int tipc_core_start_net(unsigned long addr)
{
int res;
if ((res = tipc_net_start(addr)) ||
(res = tipc_eth_media_start())) {
tipc_core_stop_net();
}
return res;
}
int tipc_core_start_net(unsigned long addr)
{
int res;
res = tipc_net_start(addr);
if (!res)
res = tipc_eth_media_start();
if (res)
tipc_core_stop_net();
return res;
}
int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
{
struct net *net = sock_net(skb->sk);
struct tipc_net *tn = net_generic(net, tipc_net_id);
struct nlattr *attrs[TIPC_NLA_NET_MAX + 1];
int err;
if (!info->attrs[TIPC_NLA_NET])
return -EINVAL;
err = nla_parse_nested(attrs, TIPC_NLA_NET_MAX,
info->attrs[TIPC_NLA_NET],
tipc_nl_net_policy);
if (err)
return err;
if (attrs[TIPC_NLA_NET_ID]) {
u32 val;
/* Can't change net id once TIPC has joined a network */
if (tn->own_addr)
return -EPERM;
val = nla_get_u32(attrs[TIPC_NLA_NET_ID]);
if (val < 1 || val > 9999)
return -EINVAL;
tn->net_id = val;
}
if (attrs[TIPC_NLA_NET_ADDR]) {
u32 addr;
/* Can't change net addr once TIPC has joined a network */
if (tn->own_addr)
return -EPERM;
addr = nla_get_u32(attrs[TIPC_NLA_NET_ADDR]);
if (!tipc_addr_node_valid(addr))
return -EINVAL;
rtnl_lock();
tipc_net_start(net, addr);
rtnl_unlock();
}
return 0;
}
/**
* start_net - start TIPC networking sub-systems
*/
int tipc_core_start_net(unsigned long addr)
{
int res;
tipc_net_start(addr);
res = tipc_eth_media_start();
if (res < 0)
goto err;
res = tipc_ib_media_start();
if (res < 0)
goto err;
return res;
err:
tipc_core_stop_net();
return res;
}
static struct sk_buff *cfg_set_own_addr(void)
{
u32 addr;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
if (addr == tipc_own_addr)
return tipc_cfg_reply_none();
if (!tipc_addr_node_valid(addr))
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (node address)");
if (tipc_own_addr)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change node address once assigned)");
tipc_net_start(addr);
return tipc_cfg_reply_none();
}
