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/*
* 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.
*
* This file implements the various access functions for the
* PROC file system. This is very similar to the IPv4 version,
* except it reports the sockets in the INET6 address family.
*
* Version: $Id: proc.c,v 1.15.2.1 2002/01/24 15:46:07 davem Exp $
*
* Authors: David S. Miller (davem@caip.rutgers.edu)
*
* 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.
*/
#include <linux/sched.h>
#include <linux/socket.h>
#include <linux/net.h>
#include <linux/in6.h>
#include <linux/stddef.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <net/transp_v6.h>
#include <net/ipv6.h>
static int fold_prot_inuse(struct proto *proto)
{
int res = 0;
int cpu;
for (cpu=0; cpu<smp_num_cpus; cpu++)
res += proto->stats[cpu_logical_map(cpu)].inuse;
return res;
}
int afinet6_get_info(char *buffer, char **start, off_t offset, int length)
{
int len = 0;
len += sprintf(buffer+len, "TCP6: inuse %d\n",
fold_prot_inuse(&tcpv6_prot));
len += sprintf(buffer+len, "UDP6: inuse %d\n",
fold_prot_inuse(&udpv6_prot));
len += sprintf(buffer+len, "RAW6: inuse %d\n",
fold_prot_inuse(&rawv6_prot));
len += sprintf(buffer+len, "FRAG6: inuse %d memory %d\n",
ip6_frag_nqueues, atomic_read(&ip6_frag_mem));
*start = buffer + offset;
len -= offset;
if(len > length)
len = length;
return len;
}
struct snmp6_item
{
char *name;
unsigned long *ptr;
int mibsize;
} snmp6_list[] = {
/* ipv6 mib according to draft-ietf-ipngwg-ipv6-mib-04 */
#define SNMP6_GEN(x) { #x , &ipv6_statistics[0].x, sizeof(struct ipv6_mib)/sizeof(unsigned long) }
SNMP6_GEN(Ip6InReceives),
SNMP6_GEN(Ip6InHdrErrors),
SNMP6_GEN(Ip6InTooBigErrors),
SNMP6_GEN(Ip6InNoRoutes),
SNMP6_GEN(Ip6InAddrErrors),
SNMP6_GEN(Ip6InUnknownProtos),
SNMP6_GEN(Ip6InTruncatedPkts),
SNMP6_GEN(Ip6InDiscards),
SNMP6_GEN(Ip6InDelivers),
SNMP6_GEN(Ip6OutForwDatagrams),
SNMP6_GEN(Ip6OutRequests),
SNMP6_GEN(Ip6OutDiscards),
SNMP6_GEN(Ip6OutNoRoutes),
SNMP6_GEN(Ip6ReasmTimeout),
SNMP6_GEN(Ip6ReasmReqds),
SNMP6_GEN(Ip6ReasmOKs),
SNMP6_GEN(Ip6ReasmFails),
SNMP6_GEN(Ip6FragOKs),
SNMP6_GEN(Ip6FragFails),
SNMP6_GEN(Ip6FragCreates),
SNMP6_GEN(Ip6InMcastPkts),
SNMP6_GEN(Ip6OutMcastPkts),
#undef SNMP6_GEN
/* icmpv6 mib according to draft-ietf-ipngwg-ipv6-icmp-mib-02
Exceptions: {In|Out}AdminProhibs are removed, because I see
no good reasons to account them separately
of another dest.unreachs.
OutErrs is zero identically.
OutEchos too.
OutRouterAdvertisements too.
OutGroupMembQueries too.
*/
#define SNMP6_GEN(x) { #x , &icmpv6_statistics[0].x, sizeof(struct icmpv6_mib)/sizeof(unsigned long) }
SNMP6_GEN(Icmp6InMsgs),
SNMP6_GEN(Icmp6InErrors),
SNMP6_GEN(Icmp6InDestUnreachs),
SNMP6_GEN(Icmp6InPktTooBigs),
SNMP6_GEN(Icmp6InTimeExcds),
SNMP6_GEN(Icmp6InParmProblems),
SNMP6_GEN(Icmp6InEchos),
SNMP6_GEN(Icmp6InEchoReplies),
SNMP6_GEN(Icmp6InGroupMembQueries),
SNMP6_GEN(Icmp6InGroupMembResponses),
SNMP6_GEN(Icmp6InGroupMembReductions),
SNMP6_GEN(Icmp6InRouterSolicits),
SNMP6_GEN(Icmp6InRouterAdvertisements),
SNMP6_GEN(Icmp6InNeighborSolicits),
SNMP6_GEN(Icmp6InNeighborAdvertisements),
SNMP6_GEN(Icmp6InRedirects),
SNMP6_GEN(Icmp6OutMsgs),
SNMP6_GEN(Icmp6OutDestUnreachs),
SNMP6_GEN(Icmp6OutPktTooBigs),
SNMP6_GEN(Icmp6OutTimeExcds),
SNMP6_GEN(Icmp6OutParmProblems),
SNMP6_GEN(Icmp6OutEchoReplies),
SNMP6_GEN(Icmp6OutRouterSolicits),
SNMP6_GEN(Icmp6OutNeighborSolicits),
SNMP6_GEN(Icmp6OutNeighborAdvertisements),
SNMP6_GEN(Icmp6OutRedirects),
SNMP6_GEN(Icmp6OutGroupMembResponses),
SNMP6_GEN(Icmp6OutGroupMembReductions),
#undef SNMP6_GEN
#define SNMP6_GEN(x) { "Udp6" #x , &udp_stats_in6[0].Udp##x, sizeof(struct udp_mib)/sizeof(unsigned long) }
SNMP6_GEN(InDatagrams),
SNMP6_GEN(NoPorts),
SNMP6_GEN(InErrors),
SNMP6_GEN(OutDatagrams)
#undef SNMP6_GEN
};
static unsigned long fold_field(unsigned long *ptr, int size)
{
unsigned long res = 0;
int i;
for (i=0; i<smp_num_cpus; i++) {
res += ptr[2*cpu_logical_map(i)*size];
res += ptr[(2*cpu_logical_map(i)+1)*size];
}
return res;
}
int afinet6_get_snmp(char *buffer, char **start, off_t offset, int length)
{
int len = 0;
int i;
for (i=0; i<sizeof(snmp6_list)/sizeof(snmp6_list[0]); i++)
len += sprintf(buffer+len, "%-32s\t%ld\n", snmp6_list[i].name,
fold_field(snmp6_list[i].ptr, snmp6_list[i].mibsize));
len -= offset;
if (len > length)
len = length;
if(len < 0)
len = 0;
*start = buffer + offset;
return len;
}
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