1 files changed, 43 insertions, 70 deletions

diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 552169b41b16..834356ea99df 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -7,8 +7,6 @@
  *              PROC file system.  It is mainly used for debugging and
  *              statistics.
  *
- * Version:     $Id: proc.c,v 1.45 2001/05/16 16:45:35 davem Exp $
- *
  * Authors:     Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *              Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de>
  *              Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de>
@@ -73,32 +71,7 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
 
 static int sockstat_seq_open(struct inode *inode, struct file *file)
 {
-        int err;
-        struct net *net;
-
-        err = -ENXIO;
-        net = get_proc_net(inode);
-        if (net == NULL)
-                goto err_net;
-
-        err = single_open(file, sockstat_seq_show, net);
-        if (err < 0)
-                goto err_open;
-
-        return 0;
-
-err_open:
-        put_net(net);
-err_net:
-        return err;
-}
-
-static int sockstat_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);
+        return single_open_net(inode, file, sockstat_seq_show);
 }
 
 static const struct file_operations sockstat_seq_fops = {
@@ -106,7 +79,7 @@ static const struct file_operations sockstat_seq_fops = {
         .open    = sockstat_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = sockstat_seq_release,
+        .release = single_release_net,
 };
 
 /* snmp items */
@@ -268,11 +241,12 @@ 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 **) icmpmsg_statistics, i))
+                if (snmp_fold_field((void **) net->mib.icmpmsg_statistics, i))
                         out[count++] = i;
                 if (count < PERLINE)
                         continue;
@@ -284,7 +258,7 @@ 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 **) icmpmsg_statistics,
+                                snmp_fold_field((void **) net->mib.icmpmsg_statistics,
                                 out[j]));
                 seq_putc(seq, '\n');
         }
@@ -296,7 +270,7 @@ 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 **)
-                                icmpmsg_statistics, out[j]));
+                                net->mib.icmpmsg_statistics, out[j]));
         }
 
 #undef PERLINE
@@ -305,6 +279,7 @@ 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++)
@@ -313,18 +288,18 @@ 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 **) icmp_statistics, ICMP_MIB_INMSGS),
-                snmp_fold_field((void **) 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 **) icmpmsg_statistics,
+                        snmp_fold_field((void **) net->mib.icmpmsg_statistics,
                                 icmpmibmap[i].index));
         seq_printf(seq, " %lu %lu",
-                snmp_fold_field((void **) icmp_statistics, ICMP_MIB_OUTMSGS),
-                snmp_fold_field((void **) 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 **) icmpmsg_statistics,
+                        snmp_fold_field((void **) net->mib.icmpmsg_statistics,
                                 icmpmibmap[i].index | 0x100));
 }
 
@@ -334,6 +309,7 @@ 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");
 
@@ -341,12 +317,12 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
                 seq_printf(seq, " %s", snmp4_ipstats_list[i].name);
 
         seq_printf(seq, "\nIp: %d %d",
-                   IPV4_DEVCONF_ALL(&init_net, FORWARDING) ? 1 : 2,
+                   IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
                    sysctl_ip_default_ttl);
 
         for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
                 seq_printf(seq, " %lu",
-                           snmp_fold_field((void **)ip_statistics,
+                           snmp_fold_field((void **)net->mib.ip_statistics,
                                            snmp4_ipstats_list[i].entry));
 
         icmp_put(seq);  /* RFC 2011 compatibility */
@@ -361,11 +337,11 @@ 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 **)tcp_statistics,
+                                   snmp_fold_field((void **)net->mib.tcp_statistics,
                                                    snmp4_tcp_list[i].entry));
                 else
                         seq_printf(seq, " %lu",
-                                   snmp_fold_field((void **)tcp_statistics,
+                                   snmp_fold_field((void **)net->mib.tcp_statistics,
                                                    snmp4_tcp_list[i].entry));
         }
 
@@ -376,7 +352,7 @@ 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 **)udp_statistics,
+                           snmp_fold_field((void **)net->mib.udp_statistics,
                                            snmp4_udp_list[i].entry));
 
         /* the UDP and UDP-Lite MIBs are the same */
@@ -387,7 +363,7 @@ 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 **)udplite_statistics,
+                           snmp_fold_field((void **)net->mib.udplite_statistics,
                                            snmp4_udp_list[i].entry));
 
         seq_putc(seq, '\n');
@@ -396,7 +372,7 @@ 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);
+        return single_open_net(inode, file, snmp_seq_show);
 }
 
 static const struct file_operations snmp_seq_fops = {
@@ -404,7 +380,7 @@ static const struct file_operations snmp_seq_fops = {
         .open    = snmp_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = single_release_net,
 };
 
 
@@ -415,6 +391,7 @@ static const struct file_operations snmp_seq_fops = {
 static int netstat_seq_show(struct seq_file *seq, void *v)
 {
         int i;
+        struct net *net = seq->private;
 
         seq_puts(seq, "TcpExt:");
         for (i = 0; snmp4_net_list[i].name != NULL; i++)
@@ -423,7 +400,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
         seq_puts(seq, "\nTcpExt:");
         for (i = 0; snmp4_net_list[i].name != NULL; i++)
                 seq_printf(seq, " %lu",
-                           snmp_fold_field((void **)net_statistics,
+                           snmp_fold_field((void **)net->mib.net_statistics,
                                            snmp4_net_list[i].entry));
 
         seq_puts(seq, "\nIpExt:");
@@ -433,7 +410,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
         seq_puts(seq, "\nIpExt:");
         for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
                 seq_printf(seq, " %lu",
-                           snmp_fold_field((void **)ip_statistics,
+                           snmp_fold_field((void **)net->mib.ip_statistics,
                                            snmp4_ipextstats_list[i].entry));
 
         seq_putc(seq, '\n');
@@ -442,7 +419,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
 
 static int netstat_seq_open(struct inode *inode, struct file *file)
 {
-        return single_open(file, netstat_seq_show, NULL);
+        return single_open_net(inode, file, netstat_seq_show);
 }
 
 static const struct file_operations netstat_seq_fops = {
@@ -450,18 +427,32 @@ static const struct file_operations netstat_seq_fops = {
         .open    = netstat_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = single_release_net,
 };
 
 static __net_init int ip_proc_init_net(struct net *net)
 {
         if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops))
-                return -ENOMEM;
+                goto out_sockstat;
+        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");
+out_sockstat:
+        return -ENOMEM;
 }
 
 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");
 }
 
@@ -472,24 +463,6 @@ static __net_initdata struct pernet_operations ip_proc_ops = {
 
 int __init ip_misc_proc_init(void)
 {
-        int rc = 0;
-
-        if (register_pernet_subsys(&ip_proc_ops))
-                goto out_pernet;
-
-        if (!proc_net_fops_create(&init_net, "netstat", S_IRUGO, &netstat_seq_fops))
-                goto out_netstat;
-
-        if (!proc_net_fops_create(&init_net, "snmp", S_IRUGO, &snmp_seq_fops))
-                goto out_snmp;
-out:
-        return rc;
-out_snmp:
-        proc_net_remove(&init_net, "netstat");
-out_netstat:
-        unregister_pernet_subsys(&ip_proc_ops);
-out_pernet:
-        rc = -ENOMEM;
-        goto out;
+        return register_pernet_subsys(&ip_proc_ops);
 }