From: Pavel Emelyanov <xemul@openvz.org>
To: David Miller <davem@davemloft.net>
Cc: Linux Netdev List <netdev@vger.kernel.org>
Subject: [PATCH 12/16] proc: create /proc/net/snmp file in each net
Date: Thu, 17 Jul 2008 17:36:42 +0400 [thread overview]
Message-ID: <487F4AEA.8090609@openvz.org> (raw)
In-Reply-To: <487F46CD.7090103@openvz.org>
All the statistics show in this file is also made per-net already.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
---
net/ipv4/proc.c | 70 +++++++++++++++++++++++++++++++++++++++---------------
1 files changed, 50 insertions(+), 20 deletions(-)
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index df8c4af..367b81f 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -266,11 +266,12 @@ static void icmpmsg_put(struct seq_file *seq)
int j, i, count;
static int out[PERLINE];
+ struct net *net = seq->private;
count = 0;
for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
- if (snmp_fold_field((void **) init_net.mib.icmpmsg_statistics, i))
+ if (snmp_fold_field((void **) net->mib.icmpmsg_statistics, i))
out[count++] = i;
if (count < PERLINE)
continue;
@@ -282,7 +283,7 @@ static void icmpmsg_put(struct seq_file *seq)
seq_printf(seq, "\nIcmpMsg: ");
for (j = 0; j < PERLINE; ++j)
seq_printf(seq, " %lu",
- snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
+ snmp_fold_field((void **) net->mib.icmpmsg_statistics,
out[j]));
seq_putc(seq, '\n');
}
@@ -294,7 +295,7 @@ static void icmpmsg_put(struct seq_file *seq)
seq_printf(seq, "\nIcmpMsg:");
for (j = 0; j < count; ++j)
seq_printf(seq, " %lu", snmp_fold_field((void **)
- init_net.mib.icmpmsg_statistics, out[j]));
+ net->mib.icmpmsg_statistics, out[j]));
}
#undef PERLINE
@@ -303,6 +304,7 @@ static void icmpmsg_put(struct seq_file *seq)
static void icmp_put(struct seq_file *seq)
{
int i;
+ struct net *net = seq->private;
seq_puts(seq, "\nIcmp: InMsgs InErrors");
for (i=0; icmpmibmap[i].name != NULL; i++)
@@ -311,18 +313,18 @@ static void icmp_put(struct seq_file *seq)
for (i=0; icmpmibmap[i].name != NULL; i++)
seq_printf(seq, " Out%s", icmpmibmap[i].name);
seq_printf(seq, "\nIcmp: %lu %lu",
- snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_INMSGS),
- snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_INERRORS));
+ snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INMSGS),
+ snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INERRORS));
for (i=0; icmpmibmap[i].name != NULL; i++)
seq_printf(seq, " %lu",
- snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
+ snmp_fold_field((void **) net->mib.icmpmsg_statistics,
icmpmibmap[i].index));
seq_printf(seq, " %lu %lu",
- snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_OUTMSGS),
- snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_OUTERRORS));
+ snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
+ snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
for (i=0; icmpmibmap[i].name != NULL; i++)
seq_printf(seq, " %lu",
- snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
+ snmp_fold_field((void **) net->mib.icmpmsg_statistics,
icmpmibmap[i].index | 0x100));
}
@@ -332,6 +334,7 @@ static void icmp_put(struct seq_file *seq)
static int snmp_seq_show(struct seq_file *seq, void *v)
{
int i;
+ struct net *net = seq->private;
seq_puts(seq, "Ip: Forwarding DefaultTTL");
@@ -344,7 +347,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- snmp_fold_field((void **)init_net.mib.ip_statistics,
+ snmp_fold_field((void **)net->mib.ip_statistics,
snmp4_ipstats_list[i].entry));
icmp_put(seq); /* RFC 2011 compatibility */
@@ -359,11 +362,11 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
/* MaxConn field is signed, RFC 2012 */
if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
seq_printf(seq, " %ld",
- snmp_fold_field((void **)init_net.mib.tcp_statistics,
+ snmp_fold_field((void **)net->mib.tcp_statistics,
snmp4_tcp_list[i].entry));
else
seq_printf(seq, " %lu",
- snmp_fold_field((void **)init_net.mib.tcp_statistics,
+ snmp_fold_field((void **)net->mib.tcp_statistics,
snmp4_tcp_list[i].entry));
}
@@ -374,7 +377,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nUdp:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- snmp_fold_field((void **)init_net.mib.udp_statistics,
+ snmp_fold_field((void **)net->mib.udp_statistics,
snmp4_udp_list[i].entry));
/* the UDP and UDP-Lite MIBs are the same */
@@ -385,7 +388,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nUdpLite:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- snmp_fold_field((void **)init_net.mib.udplite_statistics,
+ snmp_fold_field((void **)net->mib.udplite_statistics,
snmp4_udp_list[i].entry));
seq_putc(seq, '\n');
@@ -394,7 +397,32 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
static int snmp_seq_open(struct inode *inode, struct file *file)
{
- return single_open(file, snmp_seq_show, NULL);
+ int err;
+ struct net *net;
+
+ err = -ENXIO;
+ net = get_proc_net(inode);
+ if (net == NULL)
+ goto err_net;
+
+ err = single_open(file, snmp_seq_show, net);
+ if (err < 0)
+ goto err_open;
+
+ return 0;
+
+err_open:
+ put_net(net);
+err_net:
+ return err;
+}
+
+static int snmp_seq_release(struct inode *inode, struct file *file)
+{
+ struct net *net = ((struct seq_file *)file->private_data)->private;
+
+ put_net(net);
+ return single_release(inode, file);
}
static const struct file_operations snmp_seq_fops = {
@@ -402,7 +430,7 @@ static const struct file_operations snmp_seq_fops = {
.open = snmp_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = single_release,
+ .release = snmp_seq_release,
};
@@ -483,9 +511,13 @@ static __net_init int ip_proc_init_net(struct net *net)
return -ENOMEM;
if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops))
goto out_netstat;
+ if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops))
+ goto out_snmp;
return 0;
+out_snmp:
+ proc_net_remove(net, "netstat");
out_netstat:
proc_net_remove(net, "sockstat");
return -ENOMEM;
@@ -493,6 +525,7 @@ out_netstat:
static __net_exit void ip_proc_exit_net(struct net *net)
{
+ proc_net_remove(net, "snmp");
proc_net_remove(net, "netstat");
proc_net_remove(net, "sockstat");
}
@@ -509,12 +542,9 @@ int __init ip_misc_proc_init(void)
if (register_pernet_subsys(&ip_proc_ops))
goto out_pernet;
- if (!proc_net_fops_create(&init_net, "snmp", S_IRUGO, &snmp_seq_fops))
- goto out_snmp;
out:
return rc;
-out_snmp:
- unregister_pernet_subsys(&ip_proc_ops);
+
out_pernet:
rc = -ENOMEM;
goto out;
--
1.5.5.1
next prev parent reply other threads:[~2008-07-17 13:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-17 13:19 [PATCH 0/16] mib: finish with ipv4 mibs netnsization Pavel Emelyanov
2008-07-17 13:21 ` [PATCH 1/16] mib: add netns/mib.h file Pavel Emelyanov
2008-07-17 13:23 ` [PATCH 2/16] ipv4: add pernet mib operations Pavel Emelyanov
2008-07-17 13:25 ` [PATCH 3/16] mib: put tcp statistics on struct net Pavel Emelyanov
2008-07-17 13:26 ` [PATCH 4/16] mib: put ip " Pavel Emelyanov
2008-07-17 13:28 ` [PATCH 5/16] mib: put net " Pavel Emelyanov
2008-07-17 13:29 ` [PATCH 6/16] mib: put udp " Pavel Emelyanov
2008-07-17 13:30 ` [PATCH 7/16] mib: put udplite " Pavel Emelyanov
2008-07-17 13:31 ` [PATCH 8/16] mib: put icmp " Pavel Emelyanov
2008-07-17 13:32 ` [PATCH 9/16] mib: put icmpmsg " Pavel Emelyanov
2008-07-17 13:33 ` [PATCH 10/16] ipvs: clean the init_ipv4_mibs error paths Pavel Emelyanov
2008-07-17 13:35 ` [PATCH 11/16] proc: create /proc/net/netstat file in each net Pavel Emelyanov
2008-07-17 13:36 ` Pavel Emelyanov [this message]
2008-07-17 13:38 ` [PATCH 13/16] proc: show per-net ip_devconf.forwarding in /proc/net/snmp Pavel Emelyanov
2008-07-17 13:40 ` [PATCH 14/16] proc: clean the ip_misc_proc_init and ip_proc_init_net error paths Pavel Emelyanov
2008-07-17 13:41 ` [PATCH 15/16] proc: consolidate per-net single_open callers Pavel Emelyanov
2008-07-17 13:43 ` [PATCH 16/16] proc: consolidate per-net single-release callers Pavel Emelyanov
2008-07-18 11:09 ` [PATCH 0/16] mib: finish with ipv4 mibs netnsization David Miller
2008-07-21 17:38 ` Pavel Emelyanov
2008-07-22 0:24 ` Eric W. Biederman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=487F4AEA.8090609@openvz.org \
--to=xemul@openvz.org \
--cc=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.