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netns: igmp: make /proc/net/{igmp,mcfilter} per netns 

This patch makes the followinf proc entries per-netns:
/proc/net/igmp
/proc/net/mcfilter

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2008-12-25 16:42:51 -08:00 committed by David S. Miller
parent b4ee07df3d
commit 7091e728c5
1 changed files with 40 additions and 9 deletions
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49
net/ipv4/igmp.c
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@ -2275,6 +2275,7 @@ int ip_check_mc(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u16 p
#if defined(CONFIG_PROC_FS)
struct igmp_mc_iter_state {
struct seq_net_private p;
struct net_device *dev;
struct in_device *in_dev;
};
@ -2283,11 +2284,12 @@ struct igmp_mc_iter_state {
static inline struct ip_mc_list *igmp_mc_get_first(struct seq_file *seq)
{
struct net *net = seq_file_net(seq);
struct ip_mc_list *im = NULL;
struct igmp_mc_iter_state *state = igmp_mc_seq_private(seq);
state->in_dev = NULL;
for_each_netdev(&init_net, state->dev) {
for_each_netdev(net, state->dev) {
struct in_device *in_dev;
in_dev = in_dev_get(state->dev);
if (!in_dev)
@ -2408,7 +2410,7 @@ static const struct seq_operations igmp_mc_seq_ops = {
static int igmp_mc_seq_open(struct inode *inode, struct file *file)
{
return seq_open_private(file, &igmp_mc_seq_ops,
return seq_open_net(inode, file, &igmp_mc_seq_ops,
sizeof(struct igmp_mc_iter_state));
}
@ -2417,10 +2419,11 @@ static const struct file_operations igmp_mc_seq_fops = {
.open = igmp_mc_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
.release = seq_release_net,
};
struct igmp_mcf_iter_state {
struct seq_net_private p;
struct net_device *dev;
struct in_device *idev;
struct ip_mc_list *im;
@ -2430,13 +2433,14 @@ struct igmp_mcf_iter_state {
static inline struct ip_sf_list *igmp_mcf_get_first(struct seq_file *seq)
{
struct net *net = seq_file_net(seq);
struct ip_sf_list *psf = NULL;
struct ip_mc_list *im = NULL;
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
state->idev = NULL;
state->im = NULL;
for_each_netdev(&init_net, state->dev) {
for_each_netdev(net, state->dev) {
struct in_device *idev;
idev = in_dev_get(state->dev);
if (unlikely(idev == NULL))
@ -2567,7 +2571,7 @@ static const struct seq_operations igmp_mcf_seq_ops = {
static int igmp_mcf_seq_open(struct inode *inode, struct file *file)
{
return seq_open_private(file, &igmp_mcf_seq_ops,
return seq_open_net(inode, file, &igmp_mcf_seq_ops,
sizeof(struct igmp_mcf_iter_state));
}
@ -2576,14 +2580,41 @@ static const struct file_operations igmp_mcf_seq_fops = {
.open = igmp_mcf_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
.release = seq_release_net,
};
static int igmp_net_init(struct net *net)
{
struct proc_dir_entry *pde;
pde = proc_net_fops_create(net, "igmp", S_IRUGO, &igmp_mc_seq_fops);
if (!pde)
goto out_igmp;
pde = proc_net_fops_create(net, "mcfilter", S_IRUGO, &igmp_mcf_seq_fops);
if (!pde)
goto out_mcfilter;
return 0;
out_mcfilter:
proc_net_remove(net, "igmp");
out_igmp:
return -ENOMEM;
}
static void igmp_net_exit(struct net *net)
{
proc_net_remove(net, "mcfilter");
proc_net_remove(net, "igmp");
}
static struct pernet_operations igmp_net_ops = {
.init = igmp_net_init,
.exit = igmp_net_exit,
};
int __init igmp_mc_proc_init(void)
{
proc_net_fops_create(&init_net, "igmp", S_IRUGO, &igmp_mc_seq_fops);
proc_net_fops_create(&init_net, "mcfilter", S_IRUGO, &igmp_mcf_seq_fops);
return 0;
return register_pernet_subsys(&igmp_net_ops);
}
#endif