These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / linux / sock_diag.h

diff --git a/kernel/include/linux/sock_diag.h b/kernel/include/linux/sock_diag.h
index 083ac38..fddebc6 100644 (file)
--- a/kernel/include/linux/sock_diag.h
+++ b/kernel/include/linux/sock_diag.h
@@ -1,7 +1,10 @@
 #ifndef __SOCK_DIAG_H__
 #define __SOCK_DIAG_H__
 
+#include <linux/netlink.h>
 #include <linux/user_namespace.h>
+#include <net/net_namespace.h>
+#include <net/sock.h>
 #include <uapi/linux/sock_diag.h>
 
 struct sk_buff;
@@ -11,6 +14,7 @@ struct sock;
 struct sock_diag_handler {
        __u8 family;
        int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
+       int (*get_info)(struct sk_buff *skb, struct sock *sk);
 };
 
 int sock_diag_register(const struct sock_diag_handler *h);
@@ -26,4 +30,42 @@ int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr);
 int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
                             struct sk_buff *skb, int attrtype);
 
+static inline
+enum sknetlink_groups sock_diag_destroy_group(const struct sock *sk)
+{
+       switch (sk->sk_family) {
+       case AF_INET:
+               switch (sk->sk_protocol) {
+               case IPPROTO_TCP:
+                       return SKNLGRP_INET_TCP_DESTROY;
+               case IPPROTO_UDP:
+                       return SKNLGRP_INET_UDP_DESTROY;
+               default:
+                       return SKNLGRP_NONE;
+               }
+       case AF_INET6:
+               switch (sk->sk_protocol) {
+               case IPPROTO_TCP:
+                       return SKNLGRP_INET6_TCP_DESTROY;
+               case IPPROTO_UDP:
+                       return SKNLGRP_INET6_UDP_DESTROY;
+               default:
+                       return SKNLGRP_NONE;
+               }
+       default:
+               return SKNLGRP_NONE;
+       }
+}
+
+static inline
+bool sock_diag_has_destroy_listeners(const struct sock *sk)
+{
+       const struct net *n = sock_net(sk);
+       const enum sknetlink_groups group = sock_diag_destroy_group(sk);
+
+       return group != SKNLGRP_NONE && n->diag_nlsk &&
+               netlink_has_listeners(n->diag_nlsk, group);
+}
+void sock_diag_broadcast_destroy(struct sock *sk);
+
 #endif