proc: create /proc/net/snmp file in each net
All the statistics shown in this file have been made per-net already. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
David S. Miller
parent
7b7a9dfdf6
commit
229bf0cbaa
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@ -266,11 +266,12 @@ static void icmpmsg_put(struct seq_file *seq)
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int j, i, count;
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static int out[PERLINE];
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struct net *net = seq->private;
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count = 0;
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for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
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if (snmp_fold_field((void **) init_net.mib.icmpmsg_statistics, i))
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if (snmp_fold_field((void **) net->mib.icmpmsg_statistics, i))
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out[count++] = i;
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if (count < PERLINE)
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continue;
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@ -282,7 +283,7 @@ static void icmpmsg_put(struct seq_file *seq)
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seq_printf(seq, "\nIcmpMsg: ");
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for (j = 0; j < PERLINE; ++j)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
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snmp_fold_field((void **) net->mib.icmpmsg_statistics,
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out[j]));
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seq_putc(seq, '\n');
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}
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@ -294,7 +295,7 @@ static void icmpmsg_put(struct seq_file *seq)
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seq_printf(seq, "\nIcmpMsg:");
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for (j = 0; j < count; ++j)
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seq_printf(seq, " %lu", snmp_fold_field((void **)
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init_net.mib.icmpmsg_statistics, out[j]));
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net->mib.icmpmsg_statistics, out[j]));
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}
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#undef PERLINE
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@ -303,6 +304,7 @@ static void icmpmsg_put(struct seq_file *seq)
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static void icmp_put(struct seq_file *seq)
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{
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int i;
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struct net *net = seq->private;
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seq_puts(seq, "\nIcmp: InMsgs InErrors");
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for (i=0; icmpmibmap[i].name != NULL; i++)
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@ -311,18 +313,18 @@ static void icmp_put(struct seq_file *seq)
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for (i=0; icmpmibmap[i].name != NULL; i++)
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seq_printf(seq, " Out%s", icmpmibmap[i].name);
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seq_printf(seq, "\nIcmp: %lu %lu",
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snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_INMSGS),
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snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_INERRORS));
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snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INMSGS),
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snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INERRORS));
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for (i=0; icmpmibmap[i].name != NULL; i++)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
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snmp_fold_field((void **) net->mib.icmpmsg_statistics,
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icmpmibmap[i].index));
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seq_printf(seq, " %lu %lu",
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snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_OUTMSGS),
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snmp_fold_field((void **) init_net.mib.icmp_statistics, ICMP_MIB_OUTERRORS));
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snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
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snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
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for (i=0; icmpmibmap[i].name != NULL; i++)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **) init_net.mib.icmpmsg_statistics,
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snmp_fold_field((void **) net->mib.icmpmsg_statistics,
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icmpmibmap[i].index | 0x100));
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}
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@ -332,6 +334,7 @@ static void icmp_put(struct seq_file *seq)
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static int snmp_seq_show(struct seq_file *seq, void *v)
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{
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int i;
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struct net *net = seq->private;
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seq_puts(seq, "Ip: Forwarding DefaultTTL");
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@ -344,7 +347,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
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for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **)init_net.mib.ip_statistics,
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snmp_fold_field((void **)net->mib.ip_statistics,
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snmp4_ipstats_list[i].entry));
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icmp_put(seq); /* RFC 2011 compatibility */
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@ -359,11 +362,11 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
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/* MaxConn field is signed, RFC 2012 */
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if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
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seq_printf(seq, " %ld",
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snmp_fold_field((void **)init_net.mib.tcp_statistics,
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snmp_fold_field((void **)net->mib.tcp_statistics,
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snmp4_tcp_list[i].entry));
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else
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seq_printf(seq, " %lu",
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snmp_fold_field((void **)init_net.mib.tcp_statistics,
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snmp_fold_field((void **)net->mib.tcp_statistics,
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snmp4_tcp_list[i].entry));
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}
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@ -374,7 +377,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
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seq_puts(seq, "\nUdp:");
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for (i = 0; snmp4_udp_list[i].name != NULL; i++)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **)init_net.mib.udp_statistics,
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snmp_fold_field((void **)net->mib.udp_statistics,
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snmp4_udp_list[i].entry));
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/* the UDP and UDP-Lite MIBs are the same */
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@ -385,7 +388,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
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seq_puts(seq, "\nUdpLite:");
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for (i = 0; snmp4_udp_list[i].name != NULL; i++)
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seq_printf(seq, " %lu",
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snmp_fold_field((void **)init_net.mib.udplite_statistics,
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snmp_fold_field((void **)net->mib.udplite_statistics,
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snmp4_udp_list[i].entry));
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seq_putc(seq, '\n');
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@ -394,7 +397,32 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
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static int snmp_seq_open(struct inode *inode, struct file *file)
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{
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return single_open(file, snmp_seq_show, NULL);
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int err;
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struct net *net;
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err = -ENXIO;
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net = get_proc_net(inode);
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if (net == NULL)
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goto err_net;
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err = single_open(file, snmp_seq_show, net);
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if (err < 0)
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goto err_open;
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return 0;
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err_open:
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put_net(net);
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err_net:
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return err;
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}
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static int snmp_seq_release(struct inode *inode, struct file *file)
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{
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struct net *net = ((struct seq_file *)file->private_data)->private;
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put_net(net);
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return single_release(inode, file);
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}
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static const struct file_operations snmp_seq_fops = {
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@ -402,7 +430,7 @@ static const struct file_operations snmp_seq_fops = {
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.open = snmp_seq_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.release = snmp_seq_release,
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};
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@ -483,9 +511,13 @@ static __net_init int ip_proc_init_net(struct net *net)
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return -ENOMEM;
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if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops))
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goto out_netstat;
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if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops))
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goto out_snmp;
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return 0;
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out_snmp:
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proc_net_remove(net, "netstat");
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out_netstat:
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proc_net_remove(net, "sockstat");
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return -ENOMEM;
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@ -493,6 +525,7 @@ out_netstat:
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static __net_exit void ip_proc_exit_net(struct net *net)
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{
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proc_net_remove(net, "snmp");
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proc_net_remove(net, "netstat");
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proc_net_remove(net, "sockstat");
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}
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@ -509,12 +542,9 @@ int __init ip_misc_proc_init(void)
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if (register_pernet_subsys(&ip_proc_ops))
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goto out_pernet;
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if (!proc_net_fops_create(&init_net, "snmp", S_IRUGO, &snmp_seq_fops))
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goto out_snmp;
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out:
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return rc;
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out_snmp:
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unregister_pernet_subsys(&ip_proc_ops);
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out_pernet:
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rc = -ENOMEM;
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goto out;
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