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| 2 | |
| 3 | * INET An implementation of the TCP/IP protocol suite for the LINUX
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| 4 | * operating system. INET is implemented using the BSD Socket
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| 5 | * interface as the means of communication with the user level.
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| 6 | *
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| 7 | * Definitions for the ICMP module.
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| 8 | *
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| 9 | * Version: @(#)icmp.h 1.0.4 05/13/93
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| 10 | *
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| 11 | * Authors: Ross Biro
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| 12 | * Fred N. van Kempen, <[email protected]>
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| 13 |
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| 14 | #ifndef _ICMP_H
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| 15 | #define _ICMP_H
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| 16 |
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| 17 | #include <linux/icmp.h>
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| 18 |
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| 19 | #include <net/inet_sock.h>
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| 20 | #include <net/snmp.h>
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| 21 | #include <net/ip.h>
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| 22 |
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| 23 | struct icmp_err {
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| 24 | int errno;
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| 25 | unsigned int fatal:1;
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| 26 | };
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| 27 |
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| 28 | extern const struct icmp_err icmp_err_convert[];
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| 29 | #define ICMP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.icmp_statistics, field)
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| 30 | #define __ICMP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.icmp_statistics, field)
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| 31 | #define ICMPMSGOUT_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256)
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| 32 | #define ICMPMSGIN_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field)
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| 33 |
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| 34 | struct dst_entry;
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| 35 | struct net_proto_family;
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| 36 | struct sk_buff;
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| 37 | struct net;
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| 38 |
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| 39 | void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
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| 40 | const struct inet_skb_parm *parm);
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| 41 | static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
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| 42 | {
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| 43 | __icmp_send(skb_in, type, code, info, IPCB(skb_in));
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| 44 | }
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| 45 |
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| 46 | #if IS_ENABLED(CONFIG_NF_NAT)
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| 47 | void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info);
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| 48 | #else
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| 49 | static inline void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info)
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| 50 | {
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| 51 | struct inet_skb_parm parm;
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| 52 |
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| 53 | memset(&parm, 0, sizeof(parm));
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| 54 | __icmp_send(skb_in, type, code, info, &parm);
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| 55 | }
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| 56 | #endif
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| 57 |
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| 58 | int icmp_rcv(struct sk_buff *skb);
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| 59 | int icmp_err(struct sk_buff *skb, u32 info);
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| 60 | int icmp_init(void);
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| 61 | void icmp_out_count(struct net *net, unsigned char type);
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| 62 | bool icmp_build_probe(struct sk_buff *skb, struct icmphdr *icmphdr);
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| 63 |
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| 64 | #endif
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