1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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 <linux/export.h>
25#include <net/net_namespace.h>
26#include <net/ip.h>
27#include <net/sock.h>
28#include <net/tcp.h>
29#include <net/udp.h>
30#include <net/transp_v6.h>
31#include <net/ipv6.h>
32
33static int sockstat6_seq_show(struct seq_file *seq, void *v)
34{
35 struct net *net = seq->private;
36
37 seq_printf(seq, "TCP6: inuse %d\n",
38 sock_prot_inuse_get(net, &tcpv6_prot));
39 seq_printf(seq, "UDP6: inuse %d\n",
40 sock_prot_inuse_get(net, &udpv6_prot));
41 seq_printf(seq, "UDPLITE6: inuse %d\n",
42 sock_prot_inuse_get(net, &udplitev6_prot));
43 seq_printf(seq, "RAW6: inuse %d\n",
44 sock_prot_inuse_get(net, &rawv6_prot));
45 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
46 ip6_frag_nqueues(net), ip6_frag_mem(net));
47 return 0;
48}
49
50static int sockstat6_seq_open(struct inode *inode, struct file *file)
51{
52 return single_open_net(inode, file, sockstat6_seq_show);
53}
54
55static const struct file_operations sockstat6_seq_fops = {
56 .owner = THIS_MODULE,
57 .open = sockstat6_seq_open,
58 .read = seq_read,
59 .llseek = seq_lseek,
60 .release = single_release_net,
61};
62
63static const struct snmp_mib snmp6_ipstats_list[] = {
64
65 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
66 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
67 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
68 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
69 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
70 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
71 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
72 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
73 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
74 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
75 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
76 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
77 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
78 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
79 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
80 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
81 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
82 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
83 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
84 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
85 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
86 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
87 SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
88 SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
89 SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
90 SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
91 SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
92 SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
93 SNMP_MIB_SENTINEL
94};
95
96static const struct snmp_mib snmp6_icmp6_list[] = {
97
98 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
99 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
100 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
101 SNMP_MIB_ITEM("Icmp6OutErrors", ICMP6_MIB_OUTERRORS),
102 SNMP_MIB_SENTINEL
103};
104
105
106static const char *const icmp6type2name[256] = {
107 [ICMPV6_DEST_UNREACH] = "DestUnreachs",
108 [ICMPV6_PKT_TOOBIG] = "PktTooBigs",
109 [ICMPV6_TIME_EXCEED] = "TimeExcds",
110 [ICMPV6_PARAMPROB] = "ParmProblems",
111 [ICMPV6_ECHO_REQUEST] = "Echos",
112 [ICMPV6_ECHO_REPLY] = "EchoReplies",
113 [ICMPV6_MGM_QUERY] = "GroupMembQueries",
114 [ICMPV6_MGM_REPORT] = "GroupMembResponses",
115 [ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
116 [ICMPV6_MLD2_REPORT] = "MLDv2Reports",
117 [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
118 [NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
119 [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
120 [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
121 [NDISC_REDIRECT] = "Redirects",
122};
123
124
125static const struct snmp_mib snmp6_udp6_list[] = {
126 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
127 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
128 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
129 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
130 SNMP_MIB_ITEM("Udp6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
131 SNMP_MIB_ITEM("Udp6SndbufErrors", UDP_MIB_SNDBUFERRORS),
132 SNMP_MIB_SENTINEL
133};
134
135static const struct snmp_mib snmp6_udplite6_list[] = {
136 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
137 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
138 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
139 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
140 SNMP_MIB_ITEM("UdpLite6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
141 SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS),
142 SNMP_MIB_SENTINEL
143};
144
145static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
146{
147 char name[32];
148 int i;
149
150
151 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
152 int icmptype;
153 const char *p;
154
155 icmptype = i & 0xff;
156 p = icmp6type2name[icmptype];
157 if (!p)
158 continue;
159 snprintf(name, sizeof(name), "Icmp6%s%s",
160 i & 0x100 ? "Out" : "In", p);
161 seq_printf(seq, "%-32s\t%lu\n", name,
162 atomic_long_read(smib + i));
163 }
164
165
166 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
167 unsigned long val;
168
169 val = atomic_long_read(smib + i);
170 if (!val)
171 continue;
172 snprintf(name, sizeof(name), "Icmp6%sType%u",
173 i & 0x100 ? "Out" : "In", i & 0xff);
174 seq_printf(seq, "%-32s\t%lu\n", name, val);
175 }
176}
177
178
179
180
181static void snmp6_seq_show_item(struct seq_file *seq, void __percpu **pcpumib,
182 atomic_long_t *smib,
183 const struct snmp_mib *itemlist)
184{
185 int i;
186 unsigned long val;
187
188 for (i = 0; itemlist[i].name; i++) {
189 val = pcpumib ?
190 snmp_fold_field(pcpumib, itemlist[i].entry) :
191 atomic_long_read(smib + itemlist[i].entry);
192 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, val);
193 }
194}
195
196static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu **mib,
197 const struct snmp_mib *itemlist, size_t syncpoff)
198{
199 int i;
200
201 for (i = 0; itemlist[i].name; i++)
202 seq_printf(seq, "%-32s\t%llu\n", itemlist[i].name,
203 snmp_fold_field64(mib, itemlist[i].entry, syncpoff));
204}
205
206static int snmp6_seq_show(struct seq_file *seq, void *v)
207{
208 struct net *net = (struct net *)seq->private;
209
210 snmp6_seq_show_item64(seq, (void __percpu **)net->mib.ipv6_statistics,
211 snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
212 snmp6_seq_show_item(seq, (void __percpu **)net->mib.icmpv6_statistics,
213 NULL, snmp6_icmp6_list);
214 snmp6_seq_show_icmpv6msg(seq, net->mib.icmpv6msg_statistics->mibs);
215 snmp6_seq_show_item(seq, (void __percpu **)net->mib.udp_stats_in6,
216 NULL, snmp6_udp6_list);
217 snmp6_seq_show_item(seq, (void __percpu **)net->mib.udplite_stats_in6,
218 NULL, snmp6_udplite6_list);
219 return 0;
220}
221
222static int snmp6_seq_open(struct inode *inode, struct file *file)
223{
224 return single_open_net(inode, file, snmp6_seq_show);
225}
226
227static const struct file_operations snmp6_seq_fops = {
228 .owner = THIS_MODULE,
229 .open = snmp6_seq_open,
230 .read = seq_read,
231 .llseek = seq_lseek,
232 .release = single_release_net,
233};
234
235static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
236{
237 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
238
239 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
240 snmp6_seq_show_item64(seq, (void __percpu **)idev->stats.ipv6,
241 snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
242 snmp6_seq_show_item(seq, NULL, idev->stats.icmpv6dev->mibs,
243 snmp6_icmp6_list);
244 snmp6_seq_show_icmpv6msg(seq, idev->stats.icmpv6msgdev->mibs);
245 return 0;
246}
247
248static int snmp6_dev_seq_open(struct inode *inode, struct file *file)
249{
250 return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
251}
252
253static const struct file_operations snmp6_dev_seq_fops = {
254 .owner = THIS_MODULE,
255 .open = snmp6_dev_seq_open,
256 .read = seq_read,
257 .llseek = seq_lseek,
258 .release = single_release,
259};
260
261int snmp6_register_dev(struct inet6_dev *idev)
262{
263 struct proc_dir_entry *p;
264 struct net *net;
265
266 if (!idev || !idev->dev)
267 return -EINVAL;
268
269 net = dev_net(idev->dev);
270 if (!net->mib.proc_net_devsnmp6)
271 return -ENOENT;
272
273 p = proc_create_data(idev->dev->name, S_IRUGO,
274 net->mib.proc_net_devsnmp6,
275 &snmp6_dev_seq_fops, idev);
276 if (!p)
277 return -ENOMEM;
278
279 idev->stats.proc_dir_entry = p;
280 return 0;
281}
282
283int snmp6_unregister_dev(struct inet6_dev *idev)
284{
285 struct net *net = dev_net(idev->dev);
286 if (!net->mib.proc_net_devsnmp6)
287 return -ENOENT;
288 if (!idev->stats.proc_dir_entry)
289 return -EINVAL;
290 remove_proc_entry(idev->stats.proc_dir_entry->name,
291 net->mib.proc_net_devsnmp6);
292 idev->stats.proc_dir_entry = NULL;
293 return 0;
294}
295
296static int __net_init ipv6_proc_init_net(struct net *net)
297{
298 if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
299 &sockstat6_seq_fops))
300 return -ENOMEM;
301
302 if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
303 goto proc_snmp6_fail;
304
305 net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
306 if (!net->mib.proc_net_devsnmp6)
307 goto proc_dev_snmp6_fail;
308 return 0;
309
310proc_snmp6_fail:
311 proc_net_remove(net, "sockstat6");
312proc_dev_snmp6_fail:
313 proc_net_remove(net, "dev_snmp6");
314 return -ENOMEM;
315}
316
317static void __net_exit ipv6_proc_exit_net(struct net *net)
318{
319 proc_net_remove(net, "sockstat6");
320 proc_net_remove(net, "dev_snmp6");
321 proc_net_remove(net, "snmp6");
322}
323
324static struct pernet_operations ipv6_proc_ops = {
325 .init = ipv6_proc_init_net,
326 .exit = ipv6_proc_exit_net,
327};
328
329int __init ipv6_misc_proc_init(void)
330{
331 return register_pernet_subsys(&ipv6_proc_ops);
332}
333
334void ipv6_misc_proc_exit(void)
335{
336 unregister_pernet_subsys(&ipv6_proc_ops);
337}
338
339
