2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
6 * This file implements the various access functions for the
7 * PROC file system. This is very similar to the IPv4 version,
8 * except it reports the sockets in the INET6 address family.
10 * Authors: David S. Miller (davem@caip.rutgers.edu)
11 * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
18 #include <linux/socket.h>
19 #include <linux/net.h>
20 #include <linux/ipv6.h>
21 #include <linux/proc_fs.h>
22 #include <linux/seq_file.h>
23 #include <linux/stddef.h>
24 #include <net/net_namespace.h>
29 #include <net/transp_v6.h>
32 static struct proc_dir_entry
*proc_net_devsnmp6
;
34 static int sockstat6_seq_show(struct seq_file
*seq
, void *v
)
36 struct net
*net
= seq
->private;
38 seq_printf(seq
, "TCP6: inuse %d\n",
39 sock_prot_inuse_get(net
, &tcpv6_prot
));
40 seq_printf(seq
, "UDP6: inuse %d\n",
41 sock_prot_inuse_get(net
, &udpv6_prot
));
42 seq_printf(seq
, "UDPLITE6: inuse %d\n",
43 sock_prot_inuse_get(net
, &udplitev6_prot
));
44 seq_printf(seq
, "RAW6: inuse %d\n",
45 sock_prot_inuse_get(net
, &rawv6_prot
));
46 seq_printf(seq
, "FRAG6: inuse %d memory %d\n",
47 ip6_frag_nqueues(net
), ip6_frag_mem(net
));
51 static struct snmp_mib snmp6_ipstats_list
[] = {
52 /* ipv6 mib according to RFC 2465 */
53 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES
),
54 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS
),
55 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS
),
56 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES
),
57 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS
),
58 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS
),
59 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS
),
60 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS
),
61 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS
),
62 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS
),
63 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS
),
64 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS
),
65 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES
),
66 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT
),
67 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS
),
68 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS
),
69 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS
),
70 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS
),
71 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS
),
72 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES
),
73 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS
),
74 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS
),
78 static struct snmp_mib snmp6_icmp6_list
[] = {
79 /* icmpv6 mib according to RFC 2466 */
80 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS
),
81 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS
),
82 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS
),
86 /* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
87 static char *icmp6type2name
[256] = {
88 [ICMPV6_DEST_UNREACH
] = "DestUnreachs",
89 [ICMPV6_PKT_TOOBIG
] = "PktTooBigs",
90 [ICMPV6_TIME_EXCEED
] = "TimeExcds",
91 [ICMPV6_PARAMPROB
] = "ParmProblems",
92 [ICMPV6_ECHO_REQUEST
] = "Echos",
93 [ICMPV6_ECHO_REPLY
] = "EchoReplies",
94 [ICMPV6_MGM_QUERY
] = "GroupMembQueries",
95 [ICMPV6_MGM_REPORT
] = "GroupMembResponses",
96 [ICMPV6_MGM_REDUCTION
] = "GroupMembReductions",
97 [ICMPV6_MLD2_REPORT
] = "MLDv2Reports",
98 [NDISC_ROUTER_ADVERTISEMENT
] = "RouterAdvertisements",
99 [NDISC_ROUTER_SOLICITATION
] = "RouterSolicits",
100 [NDISC_NEIGHBOUR_ADVERTISEMENT
] = "NeighborAdvertisements",
101 [NDISC_NEIGHBOUR_SOLICITATION
] = "NeighborSolicits",
102 [NDISC_REDIRECT
] = "Redirects",
106 static struct snmp_mib snmp6_udp6_list
[] = {
107 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS
),
108 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS
),
109 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS
),
110 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS
),
114 static struct snmp_mib snmp6_udplite6_list
[] = {
115 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS
),
116 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS
),
117 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS
),
118 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS
),
122 static void snmp6_seq_show_icmpv6msg(struct seq_file
*seq
, void **mib
)
124 static char name
[32];
127 /* print by name -- deprecated items */
128 for (i
= 0; i
< ICMP6MSG_MIB_MAX
; i
++) {
133 p
= icmp6type2name
[icmptype
];
134 if (!p
) /* don't print un-named types here */
136 (void) snprintf(name
, sizeof(name
)-1, "Icmp6%s%s",
137 i
& 0x100 ? "Out" : "In", p
);
138 seq_printf(seq
, "%-32s\t%lu\n", name
,
139 snmp_fold_field(mib
, i
));
142 /* print by number (nonzero only) - ICMPMsgStat format */
143 for (i
= 0; i
< ICMP6MSG_MIB_MAX
; i
++) {
146 val
= snmp_fold_field(mib
, i
);
149 (void) snprintf(name
, sizeof(name
)-1, "Icmp6%sType%u",
150 i
& 0x100 ? "Out" : "In", i
& 0xff);
151 seq_printf(seq
, "%-32s\t%lu\n", name
, val
);
157 snmp6_seq_show_item(struct seq_file
*seq
, void **mib
, struct snmp_mib
*itemlist
)
160 for (i
=0; itemlist
[i
].name
; i
++)
161 seq_printf(seq
, "%-32s\t%lu\n", itemlist
[i
].name
,
162 snmp_fold_field(mib
, itemlist
[i
].entry
));
165 static int snmp6_seq_show(struct seq_file
*seq
, void *v
)
167 struct inet6_dev
*idev
= (struct inet6_dev
*)seq
->private;
170 seq_printf(seq
, "%-32s\t%u\n", "ifIndex", idev
->dev
->ifindex
);
171 snmp6_seq_show_item(seq
, (void **)idev
->stats
.ipv6
, snmp6_ipstats_list
);
172 snmp6_seq_show_item(seq
, (void **)idev
->stats
.icmpv6
, snmp6_icmp6_list
);
173 snmp6_seq_show_icmpv6msg(seq
, (void **)idev
->stats
.icmpv6msg
);
175 snmp6_seq_show_item(seq
, (void **)ipv6_statistics
, snmp6_ipstats_list
);
176 snmp6_seq_show_item(seq
, (void **)icmpv6_statistics
, snmp6_icmp6_list
);
177 snmp6_seq_show_icmpv6msg(seq
, (void **)icmpv6msg_statistics
);
178 snmp6_seq_show_item(seq
, (void **)udp_stats_in6
, snmp6_udp6_list
);
179 snmp6_seq_show_item(seq
, (void **)udplite_stats_in6
, snmp6_udplite6_list
);
184 static int sockstat6_seq_open(struct inode
*inode
, struct file
*file
)
186 return single_open_net(inode
, file
, sockstat6_seq_show
);
189 static int sockstat6_seq_release(struct inode
*inode
, struct file
*file
)
191 struct net
*net
= ((struct seq_file
*)file
->private_data
)->private;
194 return single_release(inode
, file
);
197 static const struct file_operations sockstat6_seq_fops
= {
198 .owner
= THIS_MODULE
,
199 .open
= sockstat6_seq_open
,
202 .release
= sockstat6_seq_release
,
205 static int snmp6_seq_open(struct inode
*inode
, struct file
*file
)
207 return single_open(file
, snmp6_seq_show
, PDE(inode
)->data
);
210 static const struct file_operations snmp6_seq_fops
= {
211 .owner
= THIS_MODULE
,
212 .open
= snmp6_seq_open
,
215 .release
= single_release
,
218 int snmp6_register_dev(struct inet6_dev
*idev
)
220 struct proc_dir_entry
*p
;
222 if (!idev
|| !idev
->dev
)
225 if (dev_net(idev
->dev
) != &init_net
)
228 if (!proc_net_devsnmp6
)
231 p
= proc_create_data(idev
->dev
->name
, S_IRUGO
,
232 proc_net_devsnmp6
, &snmp6_seq_fops
, idev
);
236 idev
->stats
.proc_dir_entry
= p
;
240 int snmp6_unregister_dev(struct inet6_dev
*idev
)
242 if (!proc_net_devsnmp6
)
244 if (!idev
|| !idev
->stats
.proc_dir_entry
)
246 remove_proc_entry(idev
->stats
.proc_dir_entry
->name
,
248 idev
->stats
.proc_dir_entry
= NULL
;
252 static int ipv6_proc_init_net(struct net
*net
)
254 if (!proc_net_fops_create(net
, "sockstat6", S_IRUGO
,
255 &sockstat6_seq_fops
))
260 static void ipv6_proc_exit_net(struct net
*net
)
262 proc_net_remove(net
, "sockstat6");
265 static struct pernet_operations ipv6_proc_ops
= {
266 .init
= ipv6_proc_init_net
,
267 .exit
= ipv6_proc_exit_net
,
270 int __init
ipv6_misc_proc_init(void)
274 if (register_pernet_subsys(&ipv6_proc_ops
))
277 if (!proc_net_fops_create(&init_net
, "snmp6", S_IRUGO
, &snmp6_seq_fops
))
278 goto proc_snmp6_fail
;
280 proc_net_devsnmp6
= proc_mkdir("dev_snmp6", init_net
.proc_net
);
281 if (!proc_net_devsnmp6
)
282 goto proc_dev_snmp6_fail
;
287 proc_net_remove(&init_net
, "snmp6");
289 unregister_pernet_subsys(&ipv6_proc_ops
);
295 void ipv6_misc_proc_exit(void)
297 proc_net_remove(&init_net
, "sockstat6");
298 proc_net_remove(&init_net
, "dev_snmp6");
299 proc_net_remove(&init_net
, "snmp6");
300 unregister_pernet_subsys(&ipv6_proc_ops
);