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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>
25#include <net/ip.h>
26#include <net/sock.h>
27#include <net/tcp.h>
28#include <net/udp.h>
29#include <net/transp_v6.h>
30#include <net/ipv6.h>
31
32static int sockstat6_seq_show(struct seq_file *seq, void *v)
33{
34 struct net *net = seq->private;
35
36 seq_printf(seq, "TCP6: inuse %d\n",
37 sock_prot_inuse_get(net, &tcpv6_prot));
38 seq_printf(seq, "UDP6: inuse %d\n",
39 sock_prot_inuse_get(net, &udpv6_prot));
40 seq_printf(seq, "UDPLITE6: inuse %d\n",
41 sock_prot_inuse_get(net, &udplitev6_prot));
42 seq_printf(seq, "RAW6: inuse %d\n",
43 sock_prot_inuse_get(net, &rawv6_prot));
44 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
45 ip6_frag_nqueues(net), ip6_frag_mem(net));
46 return 0;
47}
48
49static int sockstat6_seq_open(struct inode *inode, struct file *file)
50{
51 return single_open_net(inode, file, sockstat6_seq_show);
52}
53
54static const struct file_operations sockstat6_seq_fops = {
55 .owner = THIS_MODULE,
56 .open = sockstat6_seq_open,
57 .read = seq_read,
58 .llseek = seq_lseek,
59 .release = single_release_net,
60};
61
62static struct snmp_mib snmp6_ipstats_list[] = {
63
64 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
65 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
66 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
67 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
68 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
69 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
70 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
71 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
72 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
73 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
74 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
75 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
76 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
77 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
78 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
79 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
80 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
81 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
82 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
83 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
84 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
85 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
86 SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
87 SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
88 SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
89 SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
90 SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
91 SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
92 SNMP_MIB_SENTINEL
93};
94
95static struct snmp_mib snmp6_icmp6_list[] = {
96
97 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
98 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
99 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
100 SNMP_MIB_SENTINEL
101};
102
103
104static const char *const icmp6type2name[256] = {
105 [ICMPV6_DEST_UNREACH] = "DestUnreachs",
106 [ICMPV6_PKT_TOOBIG] = "PktTooBigs",
107 [ICMPV6_TIME_EXCEED] = "TimeExcds",
108 [ICMPV6_PARAMPROB] = "ParmProblems",
109 [ICMPV6_ECHO_REQUEST] = "Echos",
110 [ICMPV6_ECHO_REPLY] = "EchoReplies",
111 [ICMPV6_MGM_QUERY] = "GroupMembQueries",
112 [ICMPV6_MGM_REPORT] = "GroupMembResponses",
113 [ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
114 [ICMPV6_MLD2_REPORT] = "MLDv2Reports",
115 [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
116 [NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
117 [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
118 [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
119 [NDISC_REDIRECT] = "Redirects",
120};
121
122
123static struct snmp_mib snmp6_udp6_list[] = {
124 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
125 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
126 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
127 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
128 SNMP_MIB_SENTINEL
129};
130
131static struct snmp_mib snmp6_udplite6_list[] = {
132 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
133 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
134 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
135 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
136 SNMP_MIB_SENTINEL
137};
138
139static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib)
140{
141 char name[32];
142 int i;
143
144
145 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
146 int icmptype;
147 const char *p;
148
149 icmptype = i & 0xff;
150 p = icmp6type2name[icmptype];
151 if (!p)
152 continue;
153 snprintf(name, sizeof(name), "Icmp6%s%s",
154 i & 0x100 ? "Out" : "In", p);
155 seq_printf(seq, "%-32s\t%lu\n", name,
156 snmp_fold_field(mib, i));
157 }
158
159
160 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
161 unsigned long val;
162
163 val = snmp_fold_field(mib, i);
164 if (!val)
165 continue;
166 snprintf(name, sizeof(name), "Icmp6%sType%u",
167 i & 0x100 ? "Out" : "In", i & 0xff);
168 seq_printf(seq, "%-32s\t%lu\n", name, val);
169 }
170 return;
171}
172
173static inline void
174snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
175{
176 int i;
177 for (i=0; itemlist[i].name; i++)
178 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
179 snmp_fold_field(mib, itemlist[i].entry));
180}
181
182static int snmp6_seq_show(struct seq_file *seq, void *v)
183{
184 struct net *net = (struct net *)seq->private;
185
186 snmp6_seq_show_item(seq, (void **)net->mib.ipv6_statistics,
187 snmp6_ipstats_list);
188 snmp6_seq_show_item(seq, (void **)net->mib.icmpv6_statistics,
189 snmp6_icmp6_list);
190 snmp6_seq_show_icmpv6msg(seq, (void **)net->mib.icmpv6msg_statistics);
191 snmp6_seq_show_item(seq, (void **)net->mib.udp_stats_in6,
192 snmp6_udp6_list);
193 snmp6_seq_show_item(seq, (void **)net->mib.udplite_stats_in6,
194 snmp6_udplite6_list);
195 return 0;
196}
197
198static int snmp6_seq_open(struct inode *inode, struct file *file)
199{
200 return single_open_net(inode, file, snmp6_seq_show);
201}
202
203static const struct file_operations snmp6_seq_fops = {
204 .owner = THIS_MODULE,
205 .open = snmp6_seq_open,
206 .read = seq_read,
207 .llseek = seq_lseek,
208 .release = single_release_net,
209};
210
211static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
212{
213 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
214
215 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
216 snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
217 snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
218 snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
219 return 0;
220}
221
222static int snmp6_dev_seq_open(struct inode *inode, struct file *file)
223{
224 return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
225}
226
227static const struct file_operations snmp6_dev_seq_fops = {
228 .owner = THIS_MODULE,
229 .open = snmp6_dev_seq_open,
230 .read = seq_read,
231 .llseek = seq_lseek,
232 .release = single_release,
233};
234
235int snmp6_register_dev(struct inet6_dev *idev)
236{
237 struct proc_dir_entry *p;
238 struct net *net;
239
240 if (!idev || !idev->dev)
241 return -EINVAL;
242
243 net = dev_net(idev->dev);
244 if (!net->mib.proc_net_devsnmp6)
245 return -ENOENT;
246
247 p = proc_create_data(idev->dev->name, S_IRUGO,
248 net->mib.proc_net_devsnmp6,
249 &snmp6_dev_seq_fops, idev);
250 if (!p)
251 return -ENOMEM;
252
253 idev->stats.proc_dir_entry = p;
254 return 0;
255}
256
257int snmp6_unregister_dev(struct inet6_dev *idev)
258{
259 struct net *net = dev_net(idev->dev);
260 if (!net->mib.proc_net_devsnmp6)
261 return -ENOENT;
262 if (!idev || !idev->stats.proc_dir_entry)
263 return -EINVAL;
264 remove_proc_entry(idev->stats.proc_dir_entry->name,
265 net->mib.proc_net_devsnmp6);
266 idev->stats.proc_dir_entry = NULL;
267 return 0;
268}
269
270static int ipv6_proc_init_net(struct net *net)
271{
272 if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
273 &sockstat6_seq_fops))
274 return -ENOMEM;
275
276 if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
277 goto proc_snmp6_fail;
278
279 net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
280 if (!net->mib.proc_net_devsnmp6)
281 goto proc_dev_snmp6_fail;
282 return 0;
283
284proc_snmp6_fail:
285 proc_net_remove(net, "sockstat6");
286proc_dev_snmp6_fail:
287 proc_net_remove(net, "dev_snmp6");
288 return -ENOMEM;
289}
290
291static void ipv6_proc_exit_net(struct net *net)
292{
293 proc_net_remove(net, "sockstat6");
294 proc_net_remove(net, "dev_snmp6");
295 proc_net_remove(net, "snmp6");
296}
297
298static struct pernet_operations ipv6_proc_ops = {
299 .init = ipv6_proc_init_net,
300 .exit = ipv6_proc_exit_net,
301};
302
303int __init ipv6_misc_proc_init(void)
304{
305 return register_pernet_subsys(&ipv6_proc_ops);
306}
307
308void ipv6_misc_proc_exit(void)
309{
310 unregister_pernet_subsys(&ipv6_proc_ops);
311}
312
313
