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>
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index f92733e..9eb6219 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2275,6 +2275,7 @@
#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 @@
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 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 @@
.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 @@
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 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 @@
.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
