[NETNS]: Show routing information from correct namespace (fib_hash.c)

This is the second part (for the CONFIG_IP_FIB_HASH case) of the patch
#4, where we have created proc files in namespaces.

Now we can dump correct info in them.

Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 6 deletions

diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index d20ae2e28ab5..a07300404e82 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -783,6 +783,7 @@ struct fib_table *fib_hash_init(u32 id)
 #ifdef CONFIG_PROC_FS
 
 struct fib_iter_state {
+        struct seq_net_private p;
         struct fn_zone  *zone;
         int             bucket;
         struct hlist_head *hash_head;
@@ -796,8 +797,11 @@ struct fib_iter_state {
 static struct fib_alias *fib_get_first(struct seq_file *seq)
 {
         struct fib_iter_state *iter = seq->private;
-        struct fib_table *main_table = fib_get_table(&init_net, RT_TABLE_MAIN);
-        struct fn_hash *table = (struct fn_hash *)main_table->tb_data;
+        struct fib_table *main_table;
+        struct fn_hash *table;
+
+        main_table = fib_get_table(iter->p.net, RT_TABLE_MAIN);
+        table = (struct fn_hash *)main_table->tb_data;
 
         iter->bucket    = 0;
         iter->hash_head = NULL;
@@ -934,10 +938,11 @@ static struct fib_alias *fib_get_idx(struct seq_file *seq, loff_t pos)
 static void *fib_seq_start(struct seq_file *seq, loff_t *pos)
         __acquires(fib_hash_lock)
 {
+        struct fib_iter_state *iter = seq->private;
         void *v = NULL;
 
         read_lock(&fib_hash_lock);
-        if (fib_get_table(&init_net, RT_TABLE_MAIN))
+        if (fib_get_table(iter->p.net, RT_TABLE_MAIN))
                 v = *pos ? fib_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
         return v;
 }
@@ -1025,8 +1030,8 @@ static const struct seq_operations fib_seq_ops = {
 
 static int fib_seq_open(struct inode *inode, struct file *file)
 {
-        return seq_open_private(file, &fib_seq_ops,
-                        sizeof(struct fib_iter_state));
+        return seq_open_net(inode, file, &fib_seq_ops,
+                            sizeof(struct fib_iter_state));
 }
 
 static const struct file_operations fib_seq_fops = {
@@ -1034,7 +1039,7 @@ static const struct file_operations fib_seq_fops = {
         .open           = fib_seq_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
-        .release        = seq_release_private,
+        .release        = seq_release_net,
 };
 
 int __net_init fib_proc_init(struct net *net)