96793b4825
Background: RFC 4293 deprecates existing individual, named ICMP
type counters to be replaced with the ICMPMsgStatsTable. This table
includes entries for both IPv4 and IPv6, and requires counting of all
ICMP types, whether or not the machine implements the type.
These patches "remove" (but not really) the existing counters, and
replace them with the ICMPMsgStats tables for v4 and v6.
It includes the named counters in the /proc places they were, but gets the
values for them from the new tables. It also counts packets generated
from raw socket output (e.g., OutEchoes, MLD queries, RA's from
radvd, etc).
Changes:
1) create icmpmsg_statistics mib
2) create icmpv6msg_statistics mib
3) modify existing counters to use these
4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types
listed by number for easy SNMP parsing
5) modify /proc/net/snmp printing for "Icmp" to get the named data
from new counters.
Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the ICMP module.
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*
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* Version: @(#)icmp.h 1.0.4 05/13/93
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*
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* Authors: Ross Biro
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ICMP_H
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#define _ICMP_H
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#include <linux/icmp.h>
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#include <net/inet_sock.h>
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#include <net/snmp.h>
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struct icmp_err {
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int errno;
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unsigned fatal:1;
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};
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extern struct icmp_err icmp_err_convert[];
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DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics);
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DECLARE_SNMP_STAT(struct icmpmsg_mib, icmpmsg_statistics);
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#define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field)
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#define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field)
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#define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field)
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#define ICMPMSGOUT_INC_STATS(field) SNMP_INC_STATS(icmpmsg_statistics, field+256)
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#define ICMPMSGOUT_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmpmsg_statistics, field+256)
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#define ICMPMSGOUT_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmpmsg_statistics, field+256)
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#define ICMPMSGIN_INC_STATS(field) SNMP_INC_STATS(icmpmsg_statistics, field)
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#define ICMPMSGIN_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmpmsg_statistics, field)
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#define ICMPMSGIN_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmpmsg_statistics, field)
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struct dst_entry;
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struct net_proto_family;
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struct sk_buff;
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extern void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info);
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extern int icmp_rcv(struct sk_buff *skb);
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extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg);
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extern void icmp_init(struct net_proto_family *ops);
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extern void icmp_out_count(unsigned char type);
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/* Move into dst.h ? */
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extern int xrlim_allow(struct dst_entry *dst, int timeout);
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struct raw_sock {
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/* inet_sock has to be the first member */
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struct inet_sock inet;
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struct icmp_filter filter;
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};
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static inline struct raw_sock *raw_sk(const struct sock *sk)
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{
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return (struct raw_sock *)sk;
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}
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extern int sysctl_icmp_echo_ignore_all;
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extern int sysctl_icmp_echo_ignore_broadcasts;
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extern int sysctl_icmp_ignore_bogus_error_responses;
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extern int sysctl_icmp_errors_use_inbound_ifaddr;
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extern int sysctl_icmp_ratelimit;
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extern int sysctl_icmp_ratemask;
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#endif /* _ICMP_H */
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