125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6.
|
|
* See also net/ipv4/udplite.c
|
|
*
|
|
* Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk>
|
|
*
|
|
* Changes:
|
|
* Fixes:
|
|
*/
|
|
#include <linux/export.h>
|
|
#include <linux/proc_fs.h>
|
|
#include "udp_impl.h"
|
|
|
|
static int udplitev6_rcv(struct sk_buff *skb)
|
|
{
|
|
return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
|
|
}
|
|
|
|
static int udplitev6_err(struct sk_buff *skb,
|
|
struct inet6_skb_parm *opt,
|
|
u8 type, u8 code, int offset, __be32 info)
|
|
{
|
|
return __udp6_lib_err(skb, opt, type, code, offset, info,
|
|
&udplite_table);
|
|
}
|
|
|
|
static const struct inet6_protocol udplitev6_protocol = {
|
|
.handler = udplitev6_rcv,
|
|
.err_handler = udplitev6_err,
|
|
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
|
|
};
|
|
|
|
struct proto udplitev6_prot = {
|
|
.name = "UDPLITEv6",
|
|
.owner = THIS_MODULE,
|
|
.close = udp_lib_close,
|
|
.connect = ip6_datagram_connect,
|
|
.disconnect = udp_disconnect,
|
|
.ioctl = udp_ioctl,
|
|
.init = udplite_sk_init,
|
|
.destroy = udpv6_destroy_sock,
|
|
.setsockopt = udpv6_setsockopt,
|
|
.getsockopt = udpv6_getsockopt,
|
|
.sendmsg = udpv6_sendmsg,
|
|
.recvmsg = udpv6_recvmsg,
|
|
.hash = udp_lib_hash,
|
|
.unhash = udp_lib_unhash,
|
|
.rehash = udp_v6_rehash,
|
|
.get_port = udp_v6_get_port,
|
|
.memory_allocated = &udp_memory_allocated,
|
|
.sysctl_mem = sysctl_udp_mem,
|
|
.obj_size = sizeof(struct udp6_sock),
|
|
.h.udp_table = &udplite_table,
|
|
};
|
|
|
|
static struct inet_protosw udplite6_protosw = {
|
|
.type = SOCK_DGRAM,
|
|
.protocol = IPPROTO_UDPLITE,
|
|
.prot = &udplitev6_prot,
|
|
.ops = &inet6_dgram_ops,
|
|
.flags = INET_PROTOSW_PERMANENT,
|
|
};
|
|
|
|
int __init udplitev6_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = inet6_register_protosw(&udplite6_protosw);
|
|
if (ret)
|
|
goto out_udplitev6_protocol;
|
|
out:
|
|
return ret;
|
|
|
|
out_udplitev6_protocol:
|
|
inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
|
|
goto out;
|
|
}
|
|
|
|
void udplitev6_exit(void)
|
|
{
|
|
inet6_unregister_protosw(&udplite6_protosw);
|
|
inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
|
|
}
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
static struct udp_seq_afinfo udplite6_seq_afinfo = {
|
|
.family = AF_INET6,
|
|
.udp_table = &udplite_table,
|
|
};
|
|
|
|
static int __net_init udplite6_proc_init_net(struct net *net)
|
|
{
|
|
if (!proc_create_net_data("udplite6", 0444, net->proc_net,
|
|
&udp6_seq_ops, sizeof(struct udp_iter_state),
|
|
&udplite6_seq_afinfo))
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
static void __net_exit udplite6_proc_exit_net(struct net *net)
|
|
{
|
|
remove_proc_entry("udplite6", net->proc_net);
|
|
}
|
|
|
|
static struct pernet_operations udplite6_net_ops = {
|
|
.init = udplite6_proc_init_net,
|
|
.exit = udplite6_proc_exit_net,
|
|
};
|
|
|
|
int __init udplite6_proc_init(void)
|
|
{
|
|
return register_pernet_subsys(&udplite6_net_ops);
|
|
}
|
|
|
|
void udplite6_proc_exit(void)
|
|
{
|
|
unregister_pernet_subsys(&udplite6_net_ops);
|
|
}
|
|
#endif
|