| /* |
| * udp_diag.c Module for monitoring UDP transport protocols sockets. |
| * |
| * Authors: Pavel Emelyanov, <xemul@parallels.com> |
| * |
| * 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/module.h> |
| #include <linux/inet_diag.h> |
| #include <linux/udp.h> |
| #include <net/udp.h> |
| #include <net/udplite.h> |
| #include <linux/inet_diag.h> |
| #include <linux/sock_diag.h> |
| |
| static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb, |
| const struct nlmsghdr *nlh, struct inet_diag_req *req) |
| { |
| return 0; |
| } |
| |
| static void udp_dump(struct udp_table *table, struct sk_buff *skb, struct netlink_callback *cb, |
| struct inet_diag_req *r, struct nlattr *bc) |
| { |
| } |
| |
| static void udp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, |
| struct inet_diag_req *r, struct nlattr *bc) |
| { |
| udp_dump(&udp_table, skb, cb, r, bc); |
| } |
| |
| static int udp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh, |
| struct inet_diag_req *req) |
| { |
| return udp_dump_one(&udp_table, in_skb, nlh, req); |
| } |
| |
| static const struct inet_diag_handler udp_diag_handler = { |
| .dump = udp_diag_dump, |
| .dump_one = udp_diag_dump_one, |
| .idiag_type = IPPROTO_UDP, |
| }; |
| |
| static void udplite_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, |
| struct inet_diag_req *r, struct nlattr *bc) |
| { |
| udp_dump(&udplite_table, skb, cb, r, bc); |
| } |
| |
| static int udplite_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh, |
| struct inet_diag_req *req) |
| { |
| return udp_dump_one(&udplite_table, in_skb, nlh, req); |
| } |
| |
| static const struct inet_diag_handler udplite_diag_handler = { |
| .dump = udplite_diag_dump, |
| .dump_one = udplite_diag_dump_one, |
| .idiag_type = IPPROTO_UDPLITE, |
| }; |
| |
| static int __init udp_diag_init(void) |
| { |
| int err; |
| |
| err = inet_diag_register(&udp_diag_handler); |
| if (err) |
| goto out; |
| err = inet_diag_register(&udplite_diag_handler); |
| if (err) |
| goto out_lite; |
| out: |
| return err; |
| out_lite: |
| inet_diag_unregister(&udp_diag_handler); |
| goto out; |
| } |
| |
| static void __exit udp_diag_exit(void) |
| { |
| inet_diag_unregister(&udplite_diag_handler); |
| inet_diag_unregister(&udp_diag_handler); |
| } |
| |
| module_init(udp_diag_init); |
| module_exit(udp_diag_exit); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 17); |
| MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 136); |