304 lines
9.1 KiB
C
304 lines
9.1 KiB
C
/*
|
|
* 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 1.17 2002/02/01 22:01:04 davem Exp $
|
|
*
|
|
* Authors: David S. Miller (davem@caip.rutgers.edu)
|
|
* YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
|
|
*
|
|
* 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/config.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/socket.h>
|
|
#include <linux/net.h>
|
|
#include <linux/ipv6.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/stddef.h>
|
|
#include <net/sock.h>
|
|
#include <net/tcp.h>
|
|
#include <net/transp_v6.h>
|
|
#include <net/ipv6.h>
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
static struct proc_dir_entry *proc_net_devsnmp6;
|
|
|
|
static int fold_prot_inuse(struct proto *proto)
|
|
{
|
|
int res = 0;
|
|
int cpu;
|
|
|
|
for (cpu=0; cpu<NR_CPUS; cpu++)
|
|
res += proto->stats[cpu].inuse;
|
|
|
|
return res;
|
|
}
|
|
|
|
static int sockstat6_seq_show(struct seq_file *seq, void *v)
|
|
{
|
|
seq_printf(seq, "TCP6: inuse %d\n",
|
|
fold_prot_inuse(&tcpv6_prot));
|
|
seq_printf(seq, "UDP6: inuse %d\n",
|
|
fold_prot_inuse(&udpv6_prot));
|
|
seq_printf(seq, "RAW6: inuse %d\n",
|
|
fold_prot_inuse(&rawv6_prot));
|
|
seq_printf(seq, "FRAG6: inuse %d memory %d\n",
|
|
ip6_frag_nqueues, atomic_read(&ip6_frag_mem));
|
|
return 0;
|
|
}
|
|
|
|
static struct snmp_mib snmp6_ipstats_list[] = {
|
|
/* ipv6 mib according to RFC 2465 */
|
|
SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
|
|
SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
|
|
SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
|
|
SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
|
|
SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
|
|
SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
|
|
SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
|
|
SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
|
|
SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
|
|
SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
|
|
SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
|
|
SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
|
|
SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
|
|
SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
|
|
SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
|
|
SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
|
|
SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
|
|
SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
|
|
SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
|
|
SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
|
|
SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
|
|
SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
|
|
SNMP_MIB_SENTINEL
|
|
};
|
|
|
|
static struct snmp_mib snmp6_icmp6_list[] = {
|
|
/* icmpv6 mib according to RFC 2466
|
|
|
|
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.
|
|
*/
|
|
SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
|
|
SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
|
|
SNMP_MIB_ITEM("Icmp6InDestUnreachs", ICMP6_MIB_INDESTUNREACHS),
|
|
SNMP_MIB_ITEM("Icmp6InPktTooBigs", ICMP6_MIB_INPKTTOOBIGS),
|
|
SNMP_MIB_ITEM("Icmp6InTimeExcds", ICMP6_MIB_INTIMEEXCDS),
|
|
SNMP_MIB_ITEM("Icmp6InParmProblems", ICMP6_MIB_INPARMPROBLEMS),
|
|
SNMP_MIB_ITEM("Icmp6InEchos", ICMP6_MIB_INECHOS),
|
|
SNMP_MIB_ITEM("Icmp6InEchoReplies", ICMP6_MIB_INECHOREPLIES),
|
|
SNMP_MIB_ITEM("Icmp6InGroupMembQueries", ICMP6_MIB_INGROUPMEMBQUERIES),
|
|
SNMP_MIB_ITEM("Icmp6InGroupMembResponses", ICMP6_MIB_INGROUPMEMBRESPONSES),
|
|
SNMP_MIB_ITEM("Icmp6InGroupMembReductions", ICMP6_MIB_INGROUPMEMBREDUCTIONS),
|
|
SNMP_MIB_ITEM("Icmp6InRouterSolicits", ICMP6_MIB_INROUTERSOLICITS),
|
|
SNMP_MIB_ITEM("Icmp6InRouterAdvertisements", ICMP6_MIB_INROUTERADVERTISEMENTS),
|
|
SNMP_MIB_ITEM("Icmp6InNeighborSolicits", ICMP6_MIB_INNEIGHBORSOLICITS),
|
|
SNMP_MIB_ITEM("Icmp6InNeighborAdvertisements", ICMP6_MIB_INNEIGHBORADVERTISEMENTS),
|
|
SNMP_MIB_ITEM("Icmp6InRedirects", ICMP6_MIB_INREDIRECTS),
|
|
SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
|
|
SNMP_MIB_ITEM("Icmp6OutDestUnreachs", ICMP6_MIB_OUTDESTUNREACHS),
|
|
SNMP_MIB_ITEM("Icmp6OutPktTooBigs", ICMP6_MIB_OUTPKTTOOBIGS),
|
|
SNMP_MIB_ITEM("Icmp6OutTimeExcds", ICMP6_MIB_OUTTIMEEXCDS),
|
|
SNMP_MIB_ITEM("Icmp6OutParmProblems", ICMP6_MIB_OUTPARMPROBLEMS),
|
|
SNMP_MIB_ITEM("Icmp6OutEchoReplies", ICMP6_MIB_OUTECHOREPLIES),
|
|
SNMP_MIB_ITEM("Icmp6OutRouterSolicits", ICMP6_MIB_OUTROUTERSOLICITS),
|
|
SNMP_MIB_ITEM("Icmp6OutNeighborSolicits", ICMP6_MIB_OUTNEIGHBORSOLICITS),
|
|
SNMP_MIB_ITEM("Icmp6OutNeighborAdvertisements", ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS),
|
|
SNMP_MIB_ITEM("Icmp6OutRedirects", ICMP6_MIB_OUTREDIRECTS),
|
|
SNMP_MIB_ITEM("Icmp6OutGroupMembResponses", ICMP6_MIB_OUTGROUPMEMBRESPONSES),
|
|
SNMP_MIB_ITEM("Icmp6OutGroupMembReductions", ICMP6_MIB_OUTGROUPMEMBREDUCTIONS),
|
|
SNMP_MIB_SENTINEL
|
|
};
|
|
|
|
static struct snmp_mib snmp6_udp6_list[] = {
|
|
SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
|
|
SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
|
|
SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
|
|
SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
|
|
SNMP_MIB_SENTINEL
|
|
};
|
|
|
|
static unsigned long
|
|
fold_field(void *mib[], int offt)
|
|
{
|
|
unsigned long res = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < NR_CPUS; i++) {
|
|
if (!cpu_possible(i))
|
|
continue;
|
|
res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
|
|
res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static inline void
|
|
snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
|
|
{
|
|
int i;
|
|
for (i=0; itemlist[i].name; i++)
|
|
seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
|
|
fold_field(mib, itemlist[i].entry));
|
|
}
|
|
|
|
static int snmp6_seq_show(struct seq_file *seq, void *v)
|
|
{
|
|
struct inet6_dev *idev = (struct inet6_dev *)seq->private;
|
|
|
|
if (idev) {
|
|
seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
|
|
snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
|
|
} else {
|
|
snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
|
|
snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
|
|
snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int sockstat6_seq_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, sockstat6_seq_show, NULL);
|
|
}
|
|
|
|
static struct file_operations sockstat6_seq_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = sockstat6_seq_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int snmp6_seq_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, snmp6_seq_show, PDE(inode)->data);
|
|
}
|
|
|
|
static struct file_operations snmp6_seq_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = snmp6_seq_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
int snmp6_register_dev(struct inet6_dev *idev)
|
|
{
|
|
struct proc_dir_entry *p;
|
|
|
|
if (!idev || !idev->dev)
|
|
return -EINVAL;
|
|
|
|
if (!proc_net_devsnmp6)
|
|
return -ENOENT;
|
|
|
|
p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6);
|
|
if (!p)
|
|
return -ENOMEM;
|
|
|
|
p->data = idev;
|
|
p->proc_fops = &snmp6_seq_fops;
|
|
|
|
idev->stats.proc_dir_entry = p;
|
|
return 0;
|
|
}
|
|
|
|
int snmp6_unregister_dev(struct inet6_dev *idev)
|
|
{
|
|
if (!proc_net_devsnmp6)
|
|
return -ENOENT;
|
|
if (!idev || !idev->stats.proc_dir_entry)
|
|
return -EINVAL;
|
|
remove_proc_entry(idev->stats.proc_dir_entry->name,
|
|
proc_net_devsnmp6);
|
|
return 0;
|
|
}
|
|
|
|
int __init ipv6_misc_proc_init(void)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (!proc_net_fops_create("snmp6", S_IRUGO, &snmp6_seq_fops))
|
|
goto proc_snmp6_fail;
|
|
|
|
proc_net_devsnmp6 = proc_mkdir("dev_snmp6", proc_net);
|
|
if (!proc_net_devsnmp6)
|
|
goto proc_dev_snmp6_fail;
|
|
|
|
if (!proc_net_fops_create("sockstat6", S_IRUGO, &sockstat6_seq_fops))
|
|
goto proc_sockstat6_fail;
|
|
out:
|
|
return rc;
|
|
|
|
proc_sockstat6_fail:
|
|
proc_net_remove("dev_snmp6");
|
|
proc_dev_snmp6_fail:
|
|
proc_net_remove("snmp6");
|
|
proc_snmp6_fail:
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
void ipv6_misc_proc_exit(void)
|
|
{
|
|
proc_net_remove("sockstat6");
|
|
proc_net_remove("dev_snmp6");
|
|
proc_net_remove("snmp6");
|
|
}
|
|
|
|
#else /* CONFIG_PROC_FS */
|
|
|
|
|
|
int snmp6_register_dev(struct inet6_dev *idev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int snmp6_unregister_dev(struct inet6_dev *idev)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PROC_FS */
|
|
|
|
int snmp6_alloc_dev(struct inet6_dev *idev)
|
|
{
|
|
int err = -ENOMEM;
|
|
|
|
if (!idev || !idev->dev)
|
|
return -EINVAL;
|
|
|
|
if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib),
|
|
__alignof__(struct icmpv6_mib)) < 0)
|
|
goto err_icmp;
|
|
|
|
return 0;
|
|
|
|
err_icmp:
|
|
return err;
|
|
}
|
|
|
|
int snmp6_free_dev(struct inet6_dev *idev)
|
|
{
|
|
snmp6_mib_free((void **)idev->stats.icmpv6);
|
|
return 0;
|
|
}
|
|
|
|
|