linux/net/ipv6/proc.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * 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.
 *
 * Authors:	David S. Miller ([email protected])
 *		YOSHIFUJI Hideaki <[email protected]>
 */
#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 <linux/export.h>
#include <net/net_namespace.h>
#include <net/ip.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <net/udp.h>
#include <net/transp_v6.h>
#include <net/ipv6.h>

#define MAX4(a, b, c, d) …
#define SNMP_MIB_MAX …

static int sockstat6_seq_show(struct seq_file *seq, void *v)
{ … }

static const struct snmp_mib snmp6_ipstats_list[] = …;

static const struct snmp_mib snmp6_icmp6_list[] = …;

/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
static const char *const icmp6type2name[256] = …;


static const struct snmp_mib snmp6_udp6_list[] = …;

static const struct snmp_mib snmp6_udplite6_list[] = …;

static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
{ … }

/* can be called either with percpu mib (pcpumib != NULL),
 * or shared one (smib != NULL)
 */
static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
				atomic_long_t *smib,
				const struct snmp_mib *itemlist)
{ … }

static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu *mib,
				  const struct snmp_mib *itemlist, size_t syncpoff)
{ … }

static int snmp6_seq_show(struct seq_file *seq, void *v)
{ … }

static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
{ … }

int snmp6_register_dev(struct inet6_dev *idev)
{ … }

int snmp6_unregister_dev(struct inet6_dev *idev)
{ … }

static int __net_init ipv6_proc_init_net(struct net *net)
{ … }

static void __net_exit ipv6_proc_exit_net(struct net *net)
{ … }

static struct pernet_operations ipv6_proc_ops = …;

int __init ipv6_misc_proc_init(void)
{ … }

void ipv6_misc_proc_exit(void)
{ … }