1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20#include <linux/socket.h>
21#include <linux/net.h>
22#include <linux/ipv6.h>
23#include <linux/proc_fs.h>
24#include <linux/seq_file.h>
25#include <linux/stddef.h>
26#include <net/net_namespace.h>
27#include <net/ip.h>
28#include <net/sock.h>
29#include <net/tcp.h>
30#include <net/transp_v6.h>
31#include <net/ipv6.h>
32
33static struct proc_dir_entry *proc_net_devsnmp6;
34
35static int sockstat6_seq_show(struct seq_file *seq, void *v)
36{
37 seq_printf(seq, "TCP6: inuse %d\n",
38 sock_prot_inuse(&tcpv6_prot));
39 seq_printf(seq, "UDP6: inuse %d\n",
40 sock_prot_inuse(&udpv6_prot));
41 seq_printf(seq, "UDPLITE6: inuse %d\n",
42 sock_prot_inuse(&udplitev6_prot));
43 seq_printf(seq, "RAW6: inuse %d\n",
44 sock_prot_inuse(&rawv6_prot));
45 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
46 ip6_frag_nqueues(), ip6_frag_mem());
47 return 0;
48}
49
50static struct snmp_mib snmp6_ipstats_list[] = {
51
52 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
53 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
54 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
55 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
56 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
57 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
58 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
59 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
60 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
61 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
62 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
63 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
64 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
65 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
66 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
67 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
68 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
69 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
70 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
71 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
72 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
73 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
74 SNMP_MIB_SENTINEL
75};
76
77static struct snmp_mib snmp6_icmp6_list[] = {
78
79 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
80 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
81 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
82 SNMP_MIB_SENTINEL
83};
84
85
86static char *icmp6type2name[256] = {
87 [ICMPV6_DEST_UNREACH] = "DestUnreachs",
88 [ICMPV6_PKT_TOOBIG] = "PktTooBigs",
89 [ICMPV6_TIME_EXCEED] = "TimeExcds",
90 [ICMPV6_PARAMPROB] = "ParmProblems",
91 [ICMPV6_ECHO_REQUEST] = "Echos",
92 [ICMPV6_ECHO_REPLY] = "EchoReplies",
93 [ICMPV6_MGM_QUERY] = "GroupMembQueries",
94 [ICMPV6_MGM_REPORT] = "GroupMembResponses",
95 [ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
96 [ICMPV6_MLD2_REPORT] = "MLDv2Reports",
97 [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
98 [NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
99 [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
100 [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
101 [NDISC_REDIRECT] = "Redirects",
102};
103
104
105static struct snmp_mib snmp6_udp6_list[] = {
106 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
107 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
108 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
109 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
110 SNMP_MIB_SENTINEL
111};
112
113static struct snmp_mib snmp6_udplite6_list[] = {
114 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
115 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
116 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
117 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
118 SNMP_MIB_SENTINEL
119};
120
121static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib)
122{
123 static char name[32];
124 int i;
125
126
127 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
128 int icmptype;
129 char *p;
130
131 icmptype = i & 0xff;
132 p = icmp6type2name[icmptype];
133 if (!p)
134 continue;
135 (void) snprintf(name, sizeof(name)-1, "Icmp6%s%s",
136 i & 0x100 ? "Out" : "In", p);
137 seq_printf(seq, "%-32s\t%lu\n", name,
138 snmp_fold_field(mib, i));
139 }
140
141
142 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
143 unsigned long val;
144
145 val = snmp_fold_field(mib, i);
146 if (!val)
147 continue;
148 (void) snprintf(name, sizeof(name)-1, "Icmp6%sType%u",
149 i & 0x100 ? "Out" : "In", i & 0xff);
150 seq_printf(seq, "%-32s\t%lu\n", name, val);
151 }
152 return;
153}
154
155static inline void
156snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
157{
158 int i;
159 for (i=0; itemlist[i].name; i++)
160 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
161 snmp_fold_field(mib, itemlist[i].entry));
162}
163
164static int snmp6_seq_show(struct seq_file *seq, void *v)
165{
166 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
167
168 if (idev) {
169 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
170 snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
171 snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
172 snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
173 } else {
174 snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
175 snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
176 snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics);
177 snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
178 snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list);
179 }
180 return 0;
181}
182
183static int sockstat6_seq_open(struct inode *inode, struct file *file)
184{
185 return single_open(file, sockstat6_seq_show, NULL);
186}
187
188static const struct file_operations sockstat6_seq_fops = {
189 .owner = THIS_MODULE,
190 .open = sockstat6_seq_open,
191 .read = seq_read,
192 .llseek = seq_lseek,
193 .release = single_release,
194};
195
196static int snmp6_seq_open(struct inode *inode, struct file *file)
197{
198 return single_open(file, snmp6_seq_show, PDE(inode)->data);
199}
200
201static const struct file_operations snmp6_seq_fops = {
202 .owner = THIS_MODULE,
203 .open = snmp6_seq_open,
204 .read = seq_read,
205 .llseek = seq_lseek,
206 .release = single_release,
207};
208
209int snmp6_register_dev(struct inet6_dev *idev)
210{
211 struct proc_dir_entry *p;
212
213 if (!idev || !idev->dev)
214 return -EINVAL;
215
216 if (!proc_net_devsnmp6)
217 return -ENOENT;
218
219 p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6);
220 if (!p)
221 return -ENOMEM;
222
223 p->data = idev;
224 p->proc_fops = &snmp6_seq_fops;
225
226 idev->stats.proc_dir_entry = p;
227 return 0;
228}
229
230int snmp6_unregister_dev(struct inet6_dev *idev)
231{
232 if (!proc_net_devsnmp6)
233 return -ENOENT;
234 if (!idev || !idev->stats.proc_dir_entry)
235 return -EINVAL;
236 remove_proc_entry(idev->stats.proc_dir_entry->name,
237 proc_net_devsnmp6);
238 idev->stats.proc_dir_entry = NULL;
239 return 0;
240}
241
242int __init ipv6_misc_proc_init(void)
243{
244 int rc = 0;
245
246 if (!proc_net_fops_create(&init_net, "snmp6", S_IRUGO, &snmp6_seq_fops))
247 goto proc_snmp6_fail;
248
249 proc_net_devsnmp6 = proc_mkdir("dev_snmp6", init_net.proc_net);
250 if (!proc_net_devsnmp6)
251 goto proc_dev_snmp6_fail;
252
253 if (!proc_net_fops_create(&init_net, "sockstat6", S_IRUGO, &sockstat6_seq_fops))
254 goto proc_sockstat6_fail;
255out:
256 return rc;
257
258proc_sockstat6_fail:
259 proc_net_remove(&init_net, "dev_snmp6");
260proc_dev_snmp6_fail:
261 proc_net_remove(&init_net, "snmp6");
262proc_snmp6_fail:
263 rc = -ENOMEM;
264 goto out;
265}
266
267void ipv6_misc_proc_exit(void)
268{
269 proc_net_remove(&init_net, "sockstat6");
270 proc_net_remove(&init_net, "dev_snmp6");
271 proc_net_remove(&init_net, "snmp6");
272}
273
274
