static __net_exit void dccp_net_exit(struct net *net)
{
struct dccp_net *dn = dccp_pernet(net);
#ifdef CONFIG_SYSCTL
unregister_net_sysctl_table(dn->sysctl_header);
kfree(dn->sysctl_table);
#endif
kfree(dn);
net_assign_generic(net, dccp_net_id, NULL);
}
static __net_init int dccp_net_init(struct net *net)
{
struct dccp_net *dn;
int err;
dn = kmalloc(sizeof(*dn), GFP_KERNEL);
if (!dn)
return -ENOMEM;
/* default values */
dn->dccp_loose = 1;
dn->dccp_timeout[CT_DCCP_REQUEST] = 2 * DCCP_MSL;
dn->dccp_timeout[CT_DCCP_RESPOND] = 4 * DCCP_MSL;
dn->dccp_timeout[CT_DCCP_PARTOPEN] = 4 * DCCP_MSL;
dn->dccp_timeout[CT_DCCP_OPEN] = 12 * 3600 * HZ;
dn->dccp_timeout[CT_DCCP_CLOSEREQ] = 64 * HZ;
dn->dccp_timeout[CT_DCCP_CLOSING] = 64 * HZ;
dn->dccp_timeout[CT_DCCP_TIMEWAIT] = 2 * DCCP_MSL;
err = net_assign_generic(net, dccp_net_id, dn);
if (err)
goto out;
#ifdef CONFIG_SYSCTL
err = -ENOMEM;
dn->sysctl_table = kmemdup(dccp_sysctl_table,
sizeof(dccp_sysctl_table), GFP_KERNEL);
if (!dn->sysctl_table)
goto out;
dn->sysctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST];
dn->sysctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND];
dn->sysctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN];
dn->sysctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN];
dn->sysctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ];
dn->sysctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING];
dn->sysctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT];
dn->sysctl_table[7].data = &dn->dccp_loose;
dn->sysctl_header = register_net_sysctl_table(net,
nf_net_netfilter_sysctl_path, dn->sysctl_table);
if (!dn->sysctl_header) {
kfree(dn->sysctl_table);
goto out;
}
#endif
return 0;
out:
kfree(dn);
return err;
}
static int sit_init_net(struct net *net)
{
int err;
struct sit_net *sitn;
if (!(get_exec_env()->features & VE_FEATURE_SIT))
return 0;
err = -ENOMEM;
sitn = kzalloc(sizeof(struct sit_net), GFP_KERNEL);
if (sitn == NULL)
goto err_alloc;
err = net_assign_generic(net, sit_net_id, sitn);
if (err < 0)
goto err_assign;
sitn->tunnels[0] = sitn->tunnels_wc;
sitn->tunnels[1] = sitn->tunnels_l;
sitn->tunnels[2] = sitn->tunnels_r;
sitn->tunnels[3] = sitn->tunnels_r_l;
sitn->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "sit0",
ipip6_tunnel_setup);
if (!sitn->fb_tunnel_dev) {
err = -ENOMEM;
goto err_alloc_dev;
}
dev_net_set(sitn->fb_tunnel_dev, net);
ipip6_fb_tunnel_init(sitn->fb_tunnel_dev);
if ((err = register_netdev(sitn->fb_tunnel_dev)))
goto err_reg_dev;
return 0;
err_reg_dev:
dev_put(sitn->fb_tunnel_dev);
free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
/* nothing */
err_assign:
kfree(sitn);
err_alloc:
return err;
}
static int ip6_tnl_init_net(struct net *net)
{
int err;
struct ip6_tnl_net *ip6n;
err = -ENOMEM;
ip6n = kzalloc(sizeof(struct ip6_tnl_net), GFP_KERNEL);
if (ip6n == NULL)
goto err_alloc;
err = net_assign_generic(net, ip6_tnl_net_id, ip6n);
if (err < 0)
goto err_assign;
ip6n->tnls[0] = ip6n->tnls_wc;
ip6n->tnls[1] = ip6n->tnls_r_l;
err = -ENOMEM;
ip6n->fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
ip6_tnl_dev_setup);
if (!ip6n->fb_tnl_dev)
goto err_alloc_dev;
dev_net_set(ip6n->fb_tnl_dev, net);
ip6_fb_tnl_dev_init(ip6n->fb_tnl_dev);
err = register_netdev(ip6n->fb_tnl_dev);
if (err < 0)
goto err_register;
return 0;
err_register:
free_netdev(ip6n->fb_tnl_dev);
err_alloc_dev:
/* nothing */
err_assign:
kfree(ip6n);
err_alloc:
return err;
}