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-rw-r--r--include/net/ping.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/include/net/ping.h b/include/net/ping.h
new file mode 100644
index 000000000..ac80cb45e
--- /dev/null
+++ b/include/net/ping.h
@@ -0,0 +1,110 @@
+/*
+ * 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/icmp.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)
+
+/* Compatibility glue so we can support IPv6 when it's compiled as a module */
+struct pingv6_ops {
+ int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len,
+ int *addr_len);
+ void (*ip6_datagram_recv_common_ctl)(struct sock *sk,
+ struct msghdr *msg,
+ struct sk_buff *skb);
+ void (*ip6_datagram_recv_specific_ctl)(struct sock *sk,
+ struct msghdr *msg,
+ struct sk_buff *skb);
+ int (*icmpv6_err_convert)(u8 type, u8 code, int *err);
+ void (*ipv6_icmp_error)(struct sock *sk, struct sk_buff *skb, int err,
+ __be16 port, u32 info, u8 *payload);
+ int (*ipv6_chk_addr)(struct net *net, const struct in6_addr *addr,
+ const struct net_device *dev, int strict);
+};
+
+struct ping_iter_state {
+ struct seq_net_private p;
+ int bucket;
+ sa_family_t family;
+};
+
+extern struct proto ping_prot;
+#if IS_ENABLED(CONFIG_IPV6)
+extern struct pingv6_ops pingv6_ops;
+#endif
+
+struct pingfakehdr {
+ struct icmphdr icmph;
+ struct msghdr *msg;
+ sa_family_t family;
+ __wsum wcheck;
+};
+
+int ping_get_port(struct sock *sk, unsigned short ident);
+void ping_hash(struct sock *sk);
+void ping_unhash(struct sock *sk);
+
+int ping_init_sock(struct sock *sk);
+void ping_close(struct sock *sk, long timeout);
+int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+void ping_err(struct sk_buff *skb, int offset, u32 info);
+int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
+ struct sk_buff *);
+
+int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
+ int flags, int *addr_len);
+int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
+ void *user_icmph, size_t icmph_len);
+int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
+int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
+bool ping_rcv(struct sk_buff *skb);
+
+#ifdef CONFIG_PROC_FS
+struct ping_seq_afinfo {
+ char *name;
+ sa_family_t family;
+ const struct file_operations *seq_fops;
+ const struct seq_operations seq_ops;
+};
+
+extern const struct file_operations ping_seq_fops;
+
+void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);
+void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+void ping_seq_stop(struct seq_file *seq, void *v);
+int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo);
+void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo);
+
+int __init ping_proc_init(void);
+void ping_proc_exit(void);
+#endif
+
+void __init ping_init(void);
+int __init pingv6_init(void);
+void pingv6_exit(void);
+
+#endif /* _PING_H */