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

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This is the second part (for the CONFIG_IP_FIB_TRIE 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>
This commit is contained in:
Denis V. Lunev 2008-01-10 03:27:17 -08:00 committed by David S. Miller
parent 6e04d01dfa
commit 1c340b2fd7
1 changed files with 32 additions and 12 deletions
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44
net/ipv4/fib_trie.c
View file

@ -1995,6 +1995,7 @@ struct fib_table *fib_hash_init(u32 id)
#ifdef CONFIG_PROC_FS
/* Depth first Trie walk iterator */
struct fib_trie_iter {
struct seq_net_private p;
struct trie *trie_local, *trie_main;
struct tnode *tnode;
struct trie *trie;
@ -2162,17 +2163,18 @@ static void trie_show_stats(struct seq_file *seq, struct trie_stat *stat)
static int fib_triestat_seq_show(struct seq_file *seq, void *v)
{
struct net *net = (struct net *)seq->private;
struct trie *trie_local, *trie_main;
struct trie_stat *stat;
struct fib_table *tb;
trie_local = NULL;
tb = fib_get_table(&init_net, RT_TABLE_LOCAL);
tb = fib_get_table(net, RT_TABLE_LOCAL);
if (tb)
trie_local = (struct trie *) tb->tb_data;
trie_main = NULL;
tb = fib_get_table(&init_net, RT_TABLE_MAIN);
tb = fib_get_table(net, RT_TABLE_MAIN);
if (tb)
trie_main = (struct trie *) tb->tb_data;
@ -2202,7 +2204,25 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v)
static int fib_triestat_seq_open(struct inode *inode, struct file *file)
{
return single_open(file, fib_triestat_seq_show, NULL);
int err;
struct net *net;
net = get_proc_net(inode);
if (net == NULL)
return -ENXIO;
err = single_open(file, fib_triestat_seq_show, net);
if (err < 0) {
put_net(net);
return err;
}
return 0;
}
static int fib_triestat_seq_release(struct inode *ino, struct file *f)
{
struct seq_file *seq = f->private_data;
put_net(seq->private);
return single_release(ino, f);
}
static const struct file_operations fib_triestat_fops = {
@ -2210,7 +2230,7 @@ static const struct file_operations fib_triestat_fops = {
.open = fib_triestat_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.release = fib_triestat_seq_release,
};
static struct node *fib_trie_get_idx(struct fib_trie_iter *iter,
@ -2239,12 +2259,12 @@ static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
struct fib_table *tb;
if (!iter->trie_local) {
tb = fib_get_table(&init_net, RT_TABLE_LOCAL);
tb = fib_get_table(iter->p.net, RT_TABLE_LOCAL);
if (tb)
iter->trie_local = (struct trie *) tb->tb_data;
}
if (!iter->trie_main) {
tb = fib_get_table(&init_net, RT_TABLE_MAIN);
tb = fib_get_table(iter->p.net, RT_TABLE_MAIN);
if (tb)
iter->trie_main = (struct trie *) tb->tb_data;
}
@ -2388,8 +2408,8 @@ static const struct seq_operations fib_trie_seq_ops = {
static int fib_trie_seq_open(struct inode *inode, struct file *file)
{
return seq_open_private(file, &fib_trie_seq_ops,
sizeof(struct fib_trie_iter));
return seq_open_net(inode, file, &fib_trie_seq_ops,
sizeof(struct fib_trie_iter));
}
static const struct file_operations fib_trie_fops = {
@ -2397,7 +2417,7 @@ static const struct file_operations fib_trie_fops = {
.open = fib_trie_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
.release = seq_release_net,
};
static unsigned fib_flag_trans(int type, __be32 mask, const struct fib_info *fi)
@ -2492,8 +2512,8 @@ static const struct seq_operations fib_route_seq_ops = {
static int fib_route_seq_open(struct inode *inode, struct file *file)
{
return seq_open_private(file, &fib_route_seq_ops,
sizeof(struct fib_trie_iter));
return seq_open_net(inode, file, &fib_route_seq_ops,
sizeof(struct fib_trie_iter));
}
static const struct file_operations fib_route_fops = {
@ -2501,7 +2521,7 @@ static const struct file_operations fib_route_fops = {
.open = fib_route_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)