[NETNS][IPV6] anycast - handle several network namespace
Make use of the network namespace information to have this protocol to
handle several network namespace.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 96868b9..463bd95 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -82,6 +82,7 @@
struct net_device *dev = NULL;
struct inet6_dev *idev;
struct ipv6_ac_socklist *pac;
+ struct net *net = sock_net(sk);
int ishost = !ipv6_devconf.forwarding;
int err = 0;
@@ -89,7 +90,7 @@
return -EPERM;
if (ipv6_addr_is_multicast(addr))
return -EINVAL;
- if (ipv6_chk_addr(&init_net, addr, NULL, 0))
+ if (ipv6_chk_addr(net, addr, NULL, 0))
return -EINVAL;
pac = sock_kmalloc(sk, sizeof(struct ipv6_ac_socklist), GFP_KERNEL);
@@ -101,7 +102,7 @@
if (ifindex == 0) {
struct rt6_info *rt;
- rt = rt6_lookup(&init_net, addr, NULL, 0, 0);
+ rt = rt6_lookup(net, addr, NULL, 0, 0);
if (rt) {
dev = rt->rt6i_dev;
dev_hold(dev);
@@ -112,10 +113,10 @@
} else {
/* router, no matching interface: just pick one */
- dev = dev_get_by_flags(&init_net, IFF_UP, IFF_UP|IFF_LOOPBACK);
+ dev = dev_get_by_flags(net, IFF_UP, IFF_UP|IFF_LOOPBACK);
}
} else
- dev = dev_get_by_index(&init_net, ifindex);
+ dev = dev_get_by_index(net, ifindex);
if (dev == NULL) {
err = -ENODEV;
@@ -176,6 +177,7 @@
struct ipv6_pinfo *np = inet6_sk(sk);
struct net_device *dev;
struct ipv6_ac_socklist *pac, *prev_pac;
+ struct net *net = sock_net(sk);
write_lock_bh(&ipv6_sk_ac_lock);
prev_pac = NULL;
@@ -196,7 +198,7 @@
write_unlock_bh(&ipv6_sk_ac_lock);
- dev = dev_get_by_index(&init_net, pac->acl_ifindex);
+ dev = dev_get_by_index(net, pac->acl_ifindex);
if (dev) {
ipv6_dev_ac_dec(dev, &pac->acl_addr);
dev_put(dev);
@@ -210,6 +212,7 @@
struct ipv6_pinfo *np = inet6_sk(sk);
struct net_device *dev = NULL;
struct ipv6_ac_socklist *pac;
+ struct net *net = sock_net(sk);
int prev_index;
write_lock_bh(&ipv6_sk_ac_lock);
@@ -224,7 +227,7 @@
if (pac->acl_ifindex != prev_index) {
if (dev)
dev_put(dev);
- dev = dev_get_by_index(&init_net, pac->acl_ifindex);
+ dev = dev_get_by_index(net, pac->acl_ifindex);
prev_index = pac->acl_ifindex;
}
if (dev)
@@ -422,14 +425,15 @@
/*
* check if given interface (or any, if dev==0) has this anycast address
*/
-int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr)
+int ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
+ struct in6_addr *addr)
{
int found = 0;
if (dev)
return ipv6_chk_acast_dev(dev, addr);
read_lock(&dev_base_lock);
- for_each_netdev(&init_net, dev)
+ for_each_netdev(net, dev)
if (ipv6_chk_acast_dev(dev, addr)) {
found = 1;
break;
@@ -441,6 +445,7 @@
#ifdef CONFIG_PROC_FS
struct ac6_iter_state {
+ struct seq_net_private p;
struct net_device *dev;
struct inet6_dev *idev;
};
@@ -451,9 +456,10 @@
{
struct ifacaddr6 *im = NULL;
struct ac6_iter_state *state = ac6_seq_private(seq);
+ struct net *net = seq_file_net(seq);
state->idev = NULL;
- for_each_netdev(&init_net, state->dev) {
+ for_each_netdev(net, state->dev) {
struct inet6_dev *idev;
idev = in6_dev_get(state->dev);
if (!idev)
@@ -551,8 +557,8 @@
static int ac6_seq_open(struct inode *inode, struct file *file)
{
- return seq_open_private(file, &ac6_seq_ops,
- sizeof(struct ac6_iter_state));
+ return seq_open_net(inode, file, &ac6_seq_ops,
+ sizeof(struct ac6_iter_state));
}
static const struct file_operations ac6_seq_fops = {
@@ -560,20 +566,20 @@
.open = ac6_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release_private,
+ .release = seq_release_net,
};
-int __init ac6_proc_init(void)
+int ac6_proc_init(struct net *net)
{
- if (!proc_net_fops_create(&init_net, "anycast6", S_IRUGO, &ac6_seq_fops))
+ if (!proc_net_fops_create(net, "anycast6", S_IRUGO, &ac6_seq_fops))
return -ENOMEM;
return 0;
}
-void ac6_proc_exit(void)
+void ac6_proc_exit(struct net *net)
{
- proc_net_remove(&init_net, "anycast6");
+ proc_net_remove(net, "anycast6");
}
#endif