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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* * 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); int 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_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 */ |