2 files changed, 59 insertions, 0 deletions

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 542195d9469e..d786b4fc02a4 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -54,6 +54,8 @@ struct netns_ipv4 {
         int sysctl_rt_cache_rebuild_count;
         int current_rt_cache_rebuild_count;
 
+        unsigned int sysctl_ping_group_range[2];
+
         atomic_t rt_genid;
         atomic_t dev_addr_genid;
 
diff --git a/include/net/ping.h b/include/net/ping.h
new file mode 100644
index 000000000000..23062c369c62
--- /dev/null
+++ b/include/net/ping.h
@@ -0,0 +1,57 @@
+/*
+ * INET         An implementation of the TCP/IP protocol suite for the LINUX
+ *              operating system.  INET is implemented using the  BSD Socket
+ *              interface as the means of communication with the user level.
+ *
+ *              Definitions for the "ping" module.
+ *
+ *              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.
+ */
+#ifndef _PING_H
+#define _PING_H
+
+#include <net/netns/hash.h>
+
+/* PING_HTABLE_SIZE must be power of 2 */
+#define PING_HTABLE_SIZE        64
+#define PING_HTABLE_MASK        (PING_HTABLE_SIZE-1)
+
+#define ping_portaddr_for_each_entry(__sk, node, list) \
+        hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node)
+
+/*
+ * gid_t is either uint or ushort.  We want to pass it to
+ * proc_dointvec_minmax(), so it must not be larger than MAX_INT
+ */
+#define GID_T_MAX (((gid_t)~0U) >> 1)
+
+struct ping_table {
+        struct hlist_nulls_head hash[PING_HTABLE_SIZE];
+        rwlock_t                lock;
+};
+
+struct ping_iter_state {
+        struct seq_net_private  p;
+        int                     bucket;
+};
+
+extern struct proto ping_prot;
+
+
+extern void ping_rcv(struct sk_buff *);
+extern void ping_err(struct sk_buff *, u32 info);
+
+extern void inet_get_ping_group_range_net(struct net *net, unsigned int *low, unsigned int *high);
+
+#ifdef CONFIG_PROC_FS
+extern int __init ping_proc_init(void);
+extern void ping_proc_exit(void);
+#endif
+
+void __init ping_init(void);
+
+
+#endif /* _PING_H */