1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 *  UDPLITE     An implementation of the UDP-Lite protocol (RFC 3828).
  4 *
  5 *  Authors:    Gerrit Renker       <gerrit@erg.abdn.ac.uk>
  6 *
  7 *  Changes:
  8 *  Fixes:
  9 */
 10
 11#define pr_fmt(fmt) "UDPLite: " fmt
 12
 13#include <linux/export.h>
 14#include <linux/proc_fs.h>
 15#include "udp_impl.h"
 16
 17struct udp_table 	udplite_table __read_mostly;
 18EXPORT_SYMBOL(udplite_table);
 19
 20static int udplite_rcv(struct sk_buff *skb)
 21{
 22	return __udp4_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
 23}
 24
 25static int udplite_err(struct sk_buff *skb, u32 info)
 26{
 27	return __udp4_lib_err(skb, info, &udplite_table);
 28}
 29
 30static const struct net_protocol udplite_protocol = {
 31	.handler	= udplite_rcv,
 32	.err_handler	= udplite_err,
 33	.no_policy	= 1,
 34	.netns_ok	= 1,
 35};
 36
 37struct proto 	udplite_prot = {
 38	.name		   = "UDP-Lite",
 39	.owner		   = THIS_MODULE,
 40	.close		   = udp_lib_close,
 41	.connect	   = ip4_datagram_connect,
 42	.disconnect	   = udp_disconnect,
 43	.ioctl		   = udp_ioctl,
 44	.init		   = udplite_sk_init,
 45	.destroy	   = udp_destroy_sock,
 46	.setsockopt	   = udp_setsockopt,
 47	.getsockopt	   = udp_getsockopt,
 48	.sendmsg	   = udp_sendmsg,
 49	.recvmsg	   = udp_recvmsg,
 50	.sendpage	   = udp_sendpage,
 51	.hash		   = udp_lib_hash,
 52	.unhash		   = udp_lib_unhash,
 53	.rehash		   = udp_v4_rehash,
 54	.get_port	   = udp_v4_get_port,
 55	.memory_allocated  = &udp_memory_allocated,
 56	.sysctl_mem	   = sysctl_udp_mem,
 57	.obj_size	   = sizeof(struct udp_sock),
 58	.h.udp_table	   = &udplite_table,
 
 
 
 
 59};
 60EXPORT_SYMBOL(udplite_prot);
 61
 62static struct inet_protosw udplite4_protosw = {
 63	.type		=  SOCK_DGRAM,
 64	.protocol	=  IPPROTO_UDPLITE,
 65	.prot		=  &udplite_prot,
 66	.ops		=  &inet_dgram_ops,
 67	.flags		=  INET_PROTOSW_PERMANENT,
 68};
 69
 70#ifdef CONFIG_PROC_FS
 71static struct udp_seq_afinfo udplite4_seq_afinfo = {
 72	.family		= AF_INET,
 73	.udp_table 	= &udplite_table,
 74};
 75
 76static int __net_init udplite4_proc_init_net(struct net *net)
 77{
 78	if (!proc_create_net_data("udplite", 0444, net->proc_net, &udp_seq_ops,
 79			sizeof(struct udp_iter_state), &udplite4_seq_afinfo))
 80		return -ENOMEM;
 81	return 0;
 82}
 83
 84static void __net_exit udplite4_proc_exit_net(struct net *net)
 85{
 86	remove_proc_entry("udplite", net->proc_net);
 87}
 88
 89static struct pernet_operations udplite4_net_ops = {
 90	.init = udplite4_proc_init_net,
 91	.exit = udplite4_proc_exit_net,
 92};
 93
 94static __init int udplite4_proc_init(void)
 95{
 96	return register_pernet_subsys(&udplite4_net_ops);
 97}
 98#else
 99static inline int udplite4_proc_init(void)
100{
101	return 0;
102}
103#endif
104
105void __init udplite4_register(void)
106{
107	udp_table_init(&udplite_table, "UDP-Lite");
108	if (proto_register(&udplite_prot, 1))
109		goto out_register_err;
110
111	if (inet_add_protocol(&udplite_protocol, IPPROTO_UDPLITE) < 0)
112		goto out_unregister_proto;
113
114	inet_register_protosw(&udplite4_protosw);
115
116	if (udplite4_proc_init())
117		pr_err("%s: Cannot register /proc!\n", __func__);
118	return;
119
120out_unregister_proto:
121	proto_unregister(&udplite_prot);
122out_register_err:
123	pr_crit("%s: Cannot add UDP-Lite protocol\n", __func__);
124}

  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 *  UDPLITE     An implementation of the UDP-Lite protocol (RFC 3828).
  4 *
  5 *  Authors:    Gerrit Renker       <gerrit@erg.abdn.ac.uk>
  6 *
  7 *  Changes:
  8 *  Fixes:
  9 */
 10
 11#define pr_fmt(fmt) "UDPLite: " fmt
 12
 13#include <linux/export.h>
 14#include <linux/proc_fs.h>
 15#include "udp_impl.h"
 16
 17struct udp_table 	udplite_table __read_mostly;
 18EXPORT_SYMBOL(udplite_table);
 19
 20static int udplite_rcv(struct sk_buff *skb)
 21{
 22	return __udp4_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
 23}
 24
 25static int udplite_err(struct sk_buff *skb, u32 info)
 26{
 27	return __udp4_lib_err(skb, info, &udplite_table);
 28}
 29
 30static const struct net_protocol udplite_protocol = {
 31	.handler	= udplite_rcv,
 32	.err_handler	= udplite_err,
 33	.no_policy	= 1,
 34	.netns_ok	= 1,
 35};
 36
 37struct proto 	udplite_prot = {
 38	.name		   = "UDP-Lite",
 39	.owner		   = THIS_MODULE,
 40	.close		   = udp_lib_close,
 41	.connect	   = ip4_datagram_connect,
 42	.disconnect	   = udp_disconnect,
 43	.ioctl		   = udp_ioctl,
 44	.init		   = udplite_sk_init,
 45	.destroy	   = udp_destroy_sock,
 46	.setsockopt	   = udp_setsockopt,
 47	.getsockopt	   = udp_getsockopt,
 48	.sendmsg	   = udp_sendmsg,
 49	.recvmsg	   = udp_recvmsg,
 50	.sendpage	   = udp_sendpage,
 51	.hash		   = udp_lib_hash,
 52	.unhash		   = udp_lib_unhash,
 53	.rehash		   = udp_v4_rehash,
 54	.get_port	   = udp_v4_get_port,
 55	.memory_allocated  = &udp_memory_allocated,
 56	.sysctl_mem	   = sysctl_udp_mem,
 57	.obj_size	   = sizeof(struct udp_sock),
 58	.h.udp_table	   = &udplite_table,
 59#ifdef CONFIG_COMPAT
 60	.compat_setsockopt = compat_udp_setsockopt,
 61	.compat_getsockopt = compat_udp_getsockopt,
 62#endif
 63};
 64EXPORT_SYMBOL(udplite_prot);
 65
 66static struct inet_protosw udplite4_protosw = {
 67	.type		=  SOCK_DGRAM,
 68	.protocol	=  IPPROTO_UDPLITE,
 69	.prot		=  &udplite_prot,
 70	.ops		=  &inet_dgram_ops,
 71	.flags		=  INET_PROTOSW_PERMANENT,
 72};
 73
 74#ifdef CONFIG_PROC_FS
 75static struct udp_seq_afinfo udplite4_seq_afinfo = {
 76	.family		= AF_INET,
 77	.udp_table 	= &udplite_table,
 78};
 79
 80static int __net_init udplite4_proc_init_net(struct net *net)
 81{
 82	if (!proc_create_net_data("udplite", 0444, net->proc_net, &udp_seq_ops,
 83			sizeof(struct udp_iter_state), &udplite4_seq_afinfo))
 84		return -ENOMEM;
 85	return 0;
 86}
 87
 88static void __net_exit udplite4_proc_exit_net(struct net *net)
 89{
 90	remove_proc_entry("udplite", net->proc_net);
 91}
 92
 93static struct pernet_operations udplite4_net_ops = {
 94	.init = udplite4_proc_init_net,
 95	.exit = udplite4_proc_exit_net,
 96};
 97
 98static __init int udplite4_proc_init(void)
 99{
100	return register_pernet_subsys(&udplite4_net_ops);
101}
102#else
103static inline int udplite4_proc_init(void)
104{
105	return 0;
106}
107#endif
108
109void __init udplite4_register(void)
110{
111	udp_table_init(&udplite_table, "UDP-Lite");
112	if (proto_register(&udplite_prot, 1))
113		goto out_register_err;
114
115	if (inet_add_protocol(&udplite_protocol, IPPROTO_UDPLITE) < 0)
116		goto out_unregister_proto;
117
118	inet_register_protosw(&udplite4_protosw);
119
120	if (udplite4_proc_init())
121		pr_err("%s: Cannot register /proc!\n", __func__);
122	return;
123
124out_unregister_proto:
125	proto_unregister(&udplite_prot);
126out_register_err:
127	pr_crit("%s: Cannot add UDP-Lite protocol\n", __func__);
128}