| /* |
| * 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 (*ip6_datagram_recv_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, |
| struct net_device *dev, int strict); |
| }; |
| |
| 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; |
| sa_family_t family; |
| }; |
| |
| extern struct proto ping_prot; |
| extern struct ping_table ping_table; |
| #if IS_ENABLED(CONFIG_IPV6) |
| extern struct pingv6_ops pingv6_ops; |
| #endif |
| |
| struct pingfakehdr { |
| struct icmphdr icmph; |
| struct iovec *iov; |
| 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 kiocb *iocb, 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_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, |
| size_t len); |
| int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, |
| size_t len); |
| int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb); |
| void 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 int __init ping_proc_init(void); |
| extern void ping_proc_exit(void); |
| #endif |
| |
| void __init ping_init(void); |
| int __init pingv6_init(void); |
| void pingv6_exit(void); |
| |
| #endif /* _PING_H */ |