Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / ipv6 / udplite.c

diff --git a/kernel/net/ipv6/udplite.c b/kernel/net/ipv6/udplite.c
new file mode 100644 (file)
index 0000000..9cf097e
--- /dev/null
+++ b/kernel/net/ipv6/udplite.c
@@ -0,0 +1,139 @@
+/*
+ *  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:
+ *             This program is free software; you can redistribute it and/or
+ *             modify it under the terms of the GNU General Public License
+ *             as published by the Free Software Foundation; either version
+ *             2 of the License, or (at your option) any later version.
+ */
+#include <linux/export.h>
+#include "udp_impl.h"
+
+static int udplitev6_rcv(struct sk_buff *skb)
+{
+       return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
+}
+
+static void udplitev6_err(struct sk_buff *skb,
+                         struct inet6_skb_parm *opt,
+                         u8 type, u8 code, int offset, __be32 info)
+{
+       __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,
+       .backlog_rcv       = udpv6_queue_rcv_skb,
+       .hash              = udp_lib_hash,
+       .unhash            = udp_lib_unhash,
+       .get_port          = udp_v6_get_port,
+       .obj_size          = sizeof(struct udp6_sock),
+       .slab_flags        = SLAB_DESTROY_BY_RCU,
+       .h.udp_table       = &udplite_table,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_udpv6_setsockopt,
+       .compat_getsockopt = compat_udpv6_getsockopt,
+#endif
+       .clear_sk          = udp_v6_clear_sk,
+};
+
+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 const struct file_operations udplite6_afinfo_seq_fops = {
+       .owner    = THIS_MODULE,
+       .open     = udp_seq_open,
+       .read     = seq_read,
+       .llseek   = seq_lseek,
+       .release  = seq_release_net
+};
+
+static struct udp_seq_afinfo udplite6_seq_afinfo = {
+       .name           = "udplite6",
+       .family         = AF_INET6,
+       .udp_table      = &udplite_table,
+       .seq_fops       = &udplite6_afinfo_seq_fops,
+       .seq_ops        = {
+               .show           = udp6_seq_show,
+       },
+};
+
+static int __net_init udplite6_proc_init_net(struct net *net)
+{
+       return udp_proc_register(net, &udplite6_seq_afinfo);
+}
+
+static void __net_exit udplite6_proc_exit_net(struct net *net)
+{
+       udp_proc_unregister(net, &udplite6_seq_afinfo);
+}
+
+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