Pavel Emelyanov | 22931d3 | 2011-12-15 02:44:35 +0000 | [diff] [blame^] | 1 | #include <linux/types.h> |
| 2 | #include <linux/spinlock.h> |
| 3 | #include <linux/sock_diag.h> |
| 4 | #include <linux/unix_diag.h> |
| 5 | #include <linux/skbuff.h> |
| 6 | #include <net/netlink.h> |
| 7 | #include <net/af_unix.h> |
| 8 | #include <net/tcp_states.h> |
| 9 | |
| 10 | #define UNIX_DIAG_PUT(skb, attrtype, attrlen) \ |
| 11 | RTA_DATA(__RTA_PUT(skb, attrtype, attrlen)) |
| 12 | |
| 13 | static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb) |
| 14 | { |
| 15 | return 0; |
| 16 | } |
| 17 | |
| 18 | static int unix_diag_get_exact(struct sk_buff *in_skb, |
| 19 | const struct nlmsghdr *nlh, |
| 20 | struct unix_diag_req *req) |
| 21 | { |
| 22 | return -EAFNOSUPPORT; |
| 23 | } |
| 24 | |
| 25 | static int unix_diag_handler_dump(struct sk_buff *skb, struct nlmsghdr *h) |
| 26 | { |
| 27 | int hdrlen = sizeof(struct unix_diag_req); |
| 28 | |
| 29 | if (nlmsg_len(h) < hdrlen) |
| 30 | return -EINVAL; |
| 31 | |
| 32 | if (h->nlmsg_flags & NLM_F_DUMP) |
| 33 | return netlink_dump_start(sock_diag_nlsk, skb, h, |
| 34 | unix_diag_dump, NULL, 0); |
| 35 | else |
| 36 | return unix_diag_get_exact(skb, h, (struct unix_diag_req *)NLMSG_DATA(h)); |
| 37 | } |
| 38 | |
| 39 | static struct sock_diag_handler unix_diag_handler = { |
| 40 | .family = AF_UNIX, |
| 41 | .dump = unix_diag_handler_dump, |
| 42 | }; |
| 43 | |
| 44 | static int __init unix_diag_init(void) |
| 45 | { |
| 46 | return sock_diag_register(&unix_diag_handler); |
| 47 | } |
| 48 | |
| 49 | static void __exit unix_diag_exit(void) |
| 50 | { |
| 51 | sock_diag_unregister(&unix_diag_handler); |
| 52 | } |
| 53 | |
| 54 | module_init(unix_diag_init); |
| 55 | module_exit(unix_diag_exit); |
| 56 | MODULE_LICENSE("GPL"); |
| 57 | MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 1 /* AF_LOCAL */); |