ia64/linux-2.6.18-xen.hg

view net/ipv6/proc.c @ 673:3161879fdf22

[IA64] xencomm: support XENMEM_add_to_physmap and XENMEM_remove_from_phsymap

support XENMEM_add_to_physmap and XENMEM_remove_from_phsymap.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Isaku Yamahata <yamahata@valinux.co.jp>
date Tue Sep 16 21:26:15 2008 +0900 (2008-09-16)
parents 831230e53067
children
line source
1 /*
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.
5 *
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.
9 *
10 * Version: $Id: proc.c,v 1.17 2002/02/01 22:01:04 davem Exp $
11 *
12 * Authors: David S. Miller (davem@caip.rutgers.edu)
13 * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
19 */
20 #include <linux/sched.h>
21 #include <linux/socket.h>
22 #include <linux/net.h>
23 #include <linux/ipv6.h>
24 #include <linux/proc_fs.h>
25 #include <linux/seq_file.h>
26 #include <linux/stddef.h>
27 #include <net/sock.h>
28 #include <net/tcp.h>
29 #include <net/transp_v6.h>
30 #include <net/ipv6.h>
32 #ifdef CONFIG_PROC_FS
33 static struct proc_dir_entry *proc_net_devsnmp6;
35 static int fold_prot_inuse(struct proto *proto)
36 {
37 int res = 0;
38 int cpu;
40 for_each_possible_cpu(cpu)
41 res += proto->stats[cpu].inuse;
43 return res;
44 }
46 static int sockstat6_seq_show(struct seq_file *seq, void *v)
47 {
48 seq_printf(seq, "TCP6: inuse %d\n",
49 fold_prot_inuse(&tcpv6_prot));
50 seq_printf(seq, "UDP6: inuse %d\n",
51 fold_prot_inuse(&udpv6_prot));
52 seq_printf(seq, "RAW6: inuse %d\n",
53 fold_prot_inuse(&rawv6_prot));
54 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
55 ip6_frag_nqueues, atomic_read(&ip6_frag_mem));
56 return 0;
57 }
59 static struct snmp_mib snmp6_ipstats_list[] = {
60 /* ipv6 mib according to RFC 2465 */
61 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
62 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
63 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
64 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
65 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
66 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
67 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
68 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
69 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
70 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
71 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
72 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
73 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
74 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
75 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
76 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
77 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
78 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
79 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
80 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
81 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
82 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
83 SNMP_MIB_SENTINEL
84 };
86 static struct snmp_mib snmp6_icmp6_list[] = {
87 /* icmpv6 mib according to RFC 2466
89 Exceptions: {In|Out}AdminProhibs are removed, because I see
90 no good reasons to account them separately
91 of another dest.unreachs.
92 OutErrs is zero identically.
93 OutEchos too.
94 OutRouterAdvertisements too.
95 OutGroupMembQueries too.
96 */
97 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
98 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
99 SNMP_MIB_ITEM("Icmp6InDestUnreachs", ICMP6_MIB_INDESTUNREACHS),
100 SNMP_MIB_ITEM("Icmp6InPktTooBigs", ICMP6_MIB_INPKTTOOBIGS),
101 SNMP_MIB_ITEM("Icmp6InTimeExcds", ICMP6_MIB_INTIMEEXCDS),
102 SNMP_MIB_ITEM("Icmp6InParmProblems", ICMP6_MIB_INPARMPROBLEMS),
103 SNMP_MIB_ITEM("Icmp6InEchos", ICMP6_MIB_INECHOS),
104 SNMP_MIB_ITEM("Icmp6InEchoReplies", ICMP6_MIB_INECHOREPLIES),
105 SNMP_MIB_ITEM("Icmp6InGroupMembQueries", ICMP6_MIB_INGROUPMEMBQUERIES),
106 SNMP_MIB_ITEM("Icmp6InGroupMembResponses", ICMP6_MIB_INGROUPMEMBRESPONSES),
107 SNMP_MIB_ITEM("Icmp6InGroupMembReductions", ICMP6_MIB_INGROUPMEMBREDUCTIONS),
108 SNMP_MIB_ITEM("Icmp6InRouterSolicits", ICMP6_MIB_INROUTERSOLICITS),
109 SNMP_MIB_ITEM("Icmp6InRouterAdvertisements", ICMP6_MIB_INROUTERADVERTISEMENTS),
110 SNMP_MIB_ITEM("Icmp6InNeighborSolicits", ICMP6_MIB_INNEIGHBORSOLICITS),
111 SNMP_MIB_ITEM("Icmp6InNeighborAdvertisements", ICMP6_MIB_INNEIGHBORADVERTISEMENTS),
112 SNMP_MIB_ITEM("Icmp6InRedirects", ICMP6_MIB_INREDIRECTS),
113 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
114 SNMP_MIB_ITEM("Icmp6OutDestUnreachs", ICMP6_MIB_OUTDESTUNREACHS),
115 SNMP_MIB_ITEM("Icmp6OutPktTooBigs", ICMP6_MIB_OUTPKTTOOBIGS),
116 SNMP_MIB_ITEM("Icmp6OutTimeExcds", ICMP6_MIB_OUTTIMEEXCDS),
117 SNMP_MIB_ITEM("Icmp6OutParmProblems", ICMP6_MIB_OUTPARMPROBLEMS),
118 SNMP_MIB_ITEM("Icmp6OutEchoReplies", ICMP6_MIB_OUTECHOREPLIES),
119 SNMP_MIB_ITEM("Icmp6OutRouterSolicits", ICMP6_MIB_OUTROUTERSOLICITS),
120 SNMP_MIB_ITEM("Icmp6OutNeighborSolicits", ICMP6_MIB_OUTNEIGHBORSOLICITS),
121 SNMP_MIB_ITEM("Icmp6OutNeighborAdvertisements", ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS),
122 SNMP_MIB_ITEM("Icmp6OutRedirects", ICMP6_MIB_OUTREDIRECTS),
123 SNMP_MIB_ITEM("Icmp6OutGroupMembResponses", ICMP6_MIB_OUTGROUPMEMBRESPONSES),
124 SNMP_MIB_ITEM("Icmp6OutGroupMembReductions", ICMP6_MIB_OUTGROUPMEMBREDUCTIONS),
125 SNMP_MIB_SENTINEL
126 };
128 static struct snmp_mib snmp6_udp6_list[] = {
129 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
130 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
131 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
132 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
133 SNMP_MIB_SENTINEL
134 };
136 static unsigned long
137 fold_field(void *mib[], int offt)
138 {
139 unsigned long res = 0;
140 int i;
142 for_each_possible_cpu(i) {
143 res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
144 res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
145 }
146 return res;
147 }
149 static inline void
150 snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
151 {
152 int i;
153 for (i=0; itemlist[i].name; i++)
154 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
155 fold_field(mib, itemlist[i].entry));
156 }
158 static int snmp6_seq_show(struct seq_file *seq, void *v)
159 {
160 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
162 if (idev) {
163 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
164 snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
165 } else {
166 snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
167 snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
168 snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
169 }
170 return 0;
171 }
173 static int sockstat6_seq_open(struct inode *inode, struct file *file)
174 {
175 return single_open(file, sockstat6_seq_show, NULL);
176 }
178 static struct file_operations sockstat6_seq_fops = {
179 .owner = THIS_MODULE,
180 .open = sockstat6_seq_open,
181 .read = seq_read,
182 .llseek = seq_lseek,
183 .release = single_release,
184 };
186 static int snmp6_seq_open(struct inode *inode, struct file *file)
187 {
188 return single_open(file, snmp6_seq_show, PDE(inode)->data);
189 }
191 static struct file_operations snmp6_seq_fops = {
192 .owner = THIS_MODULE,
193 .open = snmp6_seq_open,
194 .read = seq_read,
195 .llseek = seq_lseek,
196 .release = single_release,
197 };
199 int snmp6_register_dev(struct inet6_dev *idev)
200 {
201 struct proc_dir_entry *p;
203 if (!idev || !idev->dev)
204 return -EINVAL;
206 if (!proc_net_devsnmp6)
207 return -ENOENT;
209 p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6);
210 if (!p)
211 return -ENOMEM;
213 p->data = idev;
214 p->proc_fops = &snmp6_seq_fops;
216 idev->stats.proc_dir_entry = p;
217 return 0;
218 }
220 int snmp6_unregister_dev(struct inet6_dev *idev)
221 {
222 if (!proc_net_devsnmp6)
223 return -ENOENT;
224 if (!idev || !idev->stats.proc_dir_entry)
225 return -EINVAL;
226 remove_proc_entry(idev->stats.proc_dir_entry->name,
227 proc_net_devsnmp6);
228 return 0;
229 }
231 int __init ipv6_misc_proc_init(void)
232 {
233 int rc = 0;
235 if (!proc_net_fops_create("snmp6", S_IRUGO, &snmp6_seq_fops))
236 goto proc_snmp6_fail;
238 proc_net_devsnmp6 = proc_mkdir("dev_snmp6", proc_net);
239 if (!proc_net_devsnmp6)
240 goto proc_dev_snmp6_fail;
242 if (!proc_net_fops_create("sockstat6", S_IRUGO, &sockstat6_seq_fops))
243 goto proc_sockstat6_fail;
244 out:
245 return rc;
247 proc_sockstat6_fail:
248 proc_net_remove("dev_snmp6");
249 proc_dev_snmp6_fail:
250 proc_net_remove("snmp6");
251 proc_snmp6_fail:
252 rc = -ENOMEM;
253 goto out;
254 }
256 void ipv6_misc_proc_exit(void)
257 {
258 proc_net_remove("sockstat6");
259 proc_net_remove("dev_snmp6");
260 proc_net_remove("snmp6");
261 }
263 #else /* CONFIG_PROC_FS */
266 int snmp6_register_dev(struct inet6_dev *idev)
267 {
268 return 0;
269 }
271 int snmp6_unregister_dev(struct inet6_dev *idev)
272 {
273 return 0;
274 }
275 #endif /* CONFIG_PROC_FS */
277 int snmp6_alloc_dev(struct inet6_dev *idev)
278 {
279 int err = -ENOMEM;
281 if (!idev || !idev->dev)
282 return -EINVAL;
284 if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib),
285 __alignof__(struct icmpv6_mib)) < 0)
286 goto err_icmp;
288 return 0;
290 err_icmp:
291 return err;
292 }
294 int snmp6_free_dev(struct inet6_dev *idev)
295 {
296 snmp6_mib_free((void **)idev->stats.icmpv6);
297 return 0;
298 }