static int ipv4_net_init(struct net *net)
{
int ret = 0;
ret = nf_ct_l4proto_pernet_register(net, &nf_conntrack_l4proto_tcp4);
if (ret < 0) {
pr_err("nf_conntrack_tcp4: pernet registration failed\n");
goto out_tcp;
}
ret = nf_ct_l4proto_pernet_register(net, &nf_conntrack_l4proto_udp4);
if (ret < 0) {
pr_err("nf_conntrack_udp4: pernet registration failed\n");
goto out_udp;
}
ret = nf_ct_l4proto_pernet_register(net, &nf_conntrack_l4proto_icmp);
if (ret < 0) {
pr_err("nf_conntrack_icmp4: pernet registration failed\n");
goto out_icmp;
}
ret = nf_ct_l3proto_pernet_register(net, &nf_conntrack_l3proto_ipv4);
if (ret < 0) {
pr_err("nf_conntrack_ipv4: pernet registration failed\n");
goto out_ipv4;
}
return 0;
out_ipv4:
nf_ct_l4proto_pernet_unregister(net, &nf_conntrack_l4proto_icmp);
out_icmp:
nf_ct_l4proto_pernet_unregister(net, &nf_conntrack_l4proto_udp4);
out_udp:
nf_ct_l4proto_pernet_unregister(net, &nf_conntrack_l4proto_tcp4);
out_tcp:
return ret;
}
int nf_conntrack_proto_pernet_init(struct net *net)
{
int err;
struct nf_proto_net *pn = nf_ct_l4proto_net(net,
&nf_conntrack_l4proto_generic);
err = nf_conntrack_l4proto_generic.init_net(net,
nf_conntrack_l4proto_generic.l3proto);
if (err < 0)
return err;
err = nf_ct_l4proto_register_sysctl(net,
pn,
&nf_conntrack_l4proto_generic);
if (err < 0)
return err;
err = nf_ct_l4proto_pernet_register(net, builtin_l4proto,
ARRAY_SIZE(builtin_l4proto));
if (err < 0) {
nf_ct_l4proto_unregister_sysctl(net, pn,
&nf_conntrack_l4proto_generic);
return err;
}
pn->users++;
return 0;
}
static __net_init int dccp_net_init(struct net *net)
{
int ret = 0;
ret = nf_ct_l4proto_pernet_register(net, &dccp_proto4);
if (ret < 0) {
pr_err("nf_conntrack_dccp4: pernet registration failed.\n");
goto out;
}
ret = nf_ct_l4proto_pernet_register(net, &dccp_proto6);
if (ret < 0) {
pr_err("nf_conntrack_dccp6: pernet registration failed.\n");
goto cleanup_dccp4;
}
return 0;
cleanup_dccp4:
nf_ct_l4proto_pernet_unregister(net, &dccp_proto4);
out:
return ret;
}