[NET]: Make rtnetlink infrastructure network namespace aware (v3)

After this patch none of the netlink callback support anything
except the initial network namespace but the rtnetlink infrastructure
now handles multiple network namespaces.

Changes from v2:
- IPv6 addrlabel processing

Changes from v1:
- no need for special rtnl_unlock handling
- fixed IPv6 ndisc

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index e20dcc89a836b636e9fa311707b4bed3342e0ae1..b014f6b7fe2918784d1095c6cd8c25f3668862a9 100644 (file)
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -620,11 +620,11 @@ extern int __rtattr_parse_nested_compat(struct rtattr *tb[], int maxattr,
 ({     data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL; \
        __rtattr_parse_nested_compat(tb, max, rta, len); })
 
-extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo);
-extern int rtnl_unicast(struct sk_buff *skb, u32 pid);
-extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo);
+extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid);
+extern int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
                       struct nlmsghdr *nlh, gfp_t flags);
-extern void rtnl_set_sk_err(u32 group, int error);
+extern void rtnl_set_sk_err(struct net *net, u32 group, int error);
 extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
 extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
                              u32 id, u32 ts, u32 tsage, long expires,

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 5dd6d90b37eb778dfffde65e4998b0bdb8c8d13b..90802a668c235f20f9b40f63db4b001d7123de3b 100644 (file)
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -10,6 +10,7 @@
 
 struct proc_dir_entry;
 struct net_device;
+struct sock;
 struct net {
        atomic_t                count;          /* To decided when the network
                                                 *  namespace should be freed.
@@ -29,6 +30,8 @@ struct net {
        struct list_head        dev_base_head;
        struct hlist_head       *dev_name_head;
        struct hlist_head       *dev_index_head;
+
+       struct sock             *rtnl;                  /* rtnetlink socket */
 };
 
 #ifdef CONFIG_NET

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index a4ffa2b63cd56e5222c8be089f94e1a5ae33b8e9..f5d69336d97b037eff3e912cd3e596b639e0ef0c 100644 (file)
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -97,10 +97,10 @@ void br_ifinfo_notify(int event, struct net_bridge_port *port)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net,0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_LINK, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_LINK, err);
 }
 
 /*

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 3b20b6f0982e5c5820c60225cc02e703b16bf8e1..0af0538343da2bf878c8cb958ed55200d03413ca 100644 (file)
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -599,10 +599,10 @@ static void notify_rule_change(int event, struct fib_rule *rule,
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, pid, ops->nlgroup, nlh, GFP_KERNEL);
+       err = rtnl_notify(skb, &init_net, pid, ops->nlgroup, nlh, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(ops->nlgroup, err);
+               rtnl_set_sk_err(&init_net, ops->nlgroup, err);
 }
 
 static void attach_rules(struct list_head *rules, struct net_device *dev)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 29f0a4d2008fce7ebea0e381044e7b3b1de2ba42..a8b72c1c7c8ad7218ef26276e467a1c080fb61a2 100644 (file)
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2467,10 +2467,10 @@ static void __neigh_notify(struct neighbour *n, int type, int flags)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_NEIGH, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_NEIGH, err);
 }
 
 #ifdef CONFIG_ARPD

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4edc3dac4ccdf98459918e5736bb6a708d378925..9efaf35934f4078552f8c6a39260a3832865ef68 100644 (file)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -60,7 +60,6 @@ struct rtnl_link
 };
 
 static DEFINE_MUTEX(rtnl_mutex);
-static struct sock *rtnl;
 
 void rtnl_lock(void)
 {
@@ -458,8 +457,9 @@ size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size)
        return ret;
 }
 
-int rtnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
+int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned group, int echo)
 {
+       struct sock *rtnl = net->rtnl;
        int err = 0;
 
        NETLINK_CB(skb).dst_group = group;
@@ -471,14 +471,17 @@ int rtnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
        return err;
 }
 
-int rtnl_unicast(struct sk_buff *skb, u32 pid)
+int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
 {
+       struct sock *rtnl = net->rtnl;
+
        return nlmsg_unicast(rtnl, skb, pid);
 }
 
-int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
                struct nlmsghdr *nlh, gfp_t flags)
 {
+       struct sock *rtnl = net->rtnl;
        int report = 0;
 
        if (nlh)
@@ -487,8 +490,10 @@ int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
        return nlmsg_notify(rtnl, skb, pid, group, report, flags);
 }
 
-void rtnl_set_sk_err(u32 group, int error)
+void rtnl_set_sk_err(struct net *net, u32 group, int error)
 {
+       struct sock *rtnl = net->rtnl;
+
        netlink_set_err(rtnl, 0, group, error);
 }
 
@@ -1201,7 +1206,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
                kfree_skb(nskb);
                goto errout;
        }
-       err = rtnl_unicast(nskb, NETLINK_CB(skb).pid);
+       err = rtnl_unicast(nskb, net, NETLINK_CB(skb).pid);
 errout:
        dev_put(dev);
 
@@ -1252,10 +1257,10 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_LINK, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_LINK, err);
 }
 
 /* Protected by RTNL sempahore.  */
@@ -1266,6 +1271,7 @@ static int rtattr_max;
 
 static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
+       struct net *net = skb->sk->sk_net;
        rtnl_doit_func doit;
        int sz_idx, kind;
        int min_len;
@@ -1294,6 +1300,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                return -EPERM;
 
        if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
+               struct sock *rtnl;
                rtnl_dumpit_func dumpit;
 
                dumpit = rtnl_get_dumpit(family, type);
@@ -1301,6 +1308,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                        return -EOPNOTSUPP;
 
                __rtnl_unlock();
+               rtnl = net->rtnl;
                err = netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);
                rtnl_lock();
                return err;
@@ -1373,6 +1381,40 @@ static struct notifier_block rtnetlink_dev_notifier = {
        .notifier_call  = rtnetlink_event,
 };
 
+
+static int rtnetlink_net_init(struct net *net)
+{
+       struct sock *sk;
+       sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX,
+                                  rtnetlink_rcv, &rtnl_mutex, THIS_MODULE);
+       if (!sk)
+               return -ENOMEM;
+
+       /* Don't hold an extra reference on the namespace */
+       put_net(sk->sk_net);
+       net->rtnl = sk;
+       return 0;
+}
+
+static void rtnetlink_net_exit(struct net *net)
+{
+       struct sock *sk = net->rtnl;
+       if (sk) {
+               /* At the last minute lie and say this is a socket for the
+                * initial network namespace.  So the socket will be safe to
+                * free.
+                */
+               sk->sk_net = get_net(&init_net);
+               sock_put(sk);
+               net->rtnl = NULL;
+       }
+}
+
+static struct pernet_operations rtnetlink_net_ops = {
+       .init = rtnetlink_net_init,
+       .exit = rtnetlink_net_exit,
+};
+
 void __init rtnetlink_init(void)
 {
        int i;
@@ -1385,10 +1427,9 @@ void __init rtnetlink_init(void)
        if (!rta_buf)
                panic("rtnetlink_init: cannot allocate rta_buf\n");
 
-       rtnl = netlink_kernel_create(&init_net, NETLINK_ROUTE, RTNLGRP_MAX,
-                                    rtnetlink_rcv, &rtnl_mutex, THIS_MODULE);
-       if (rtnl == NULL)
+       if (register_pernet_subsys(&rtnetlink_net_ops))
                panic("rtnetlink_init: cannot initialize rtnetlink\n");
+
        netlink_set_nonroot(NETLINK_ROUTE, NL_NONROOT_RECV);
        register_netdevice_notifier(&rtnetlink_dev_notifier);
 

diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 94256845a05786ca3e0621920cd1769ae9d8ed6c..39c89c682047270991780019a7f2e79f12f6f035 100644 (file)
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -793,10 +793,10 @@ static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_DECnet_IFADDR, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_DECnet_IFADDR, err);
 }
 
 static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)

diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 28aeba15cf123ab8412c0099d0cfe4111a251776..5d742f1420d944ed5f83d3157e218f2f981f67ad 100644 (file)
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1587,7 +1587,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
                goto out_free;
        }
 
-       return rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       return rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 
 out_free:
        kfree_skb(skb);

diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index a3bdb8dd1fb233bd46ffc974752c066346702823..e09d915dbd776598bb66d5e142beeef8cbe4fcd8 100644 (file)
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -375,10 +375,10 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
+       err = rtnl_notify(skb, &init_net, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_DECnet_ROUTE, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_DECnet_ROUTE, err);
 }
 
 static __inline__ int dn_hash_dump_bucket(struct sk_buff *skb,

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index c0eb26a0d0bc082f595352792ee49a4b0f1aa6ef..6e75c884e1afdc87f47839904efce712be267d5c 100644 (file)
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1240,10 +1240,10 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
+       err = rtnl_notify(skb, &init_net, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV4_IFADDR, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV4_IFADDR, err);
 }
 
 #ifdef CONFIG_SYSCTL

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 1351a2617dcef072ee0adebdd59ea1007b9a4bbd..33ec96001d90c18934da49eb70af058c20e45744 100644 (file)
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -320,11 +320,11 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, info->pid, RTNLGRP_IPV4_ROUTE,
+       err = rtnl_notify(skb, &init_net, info->pid, RTNLGRP_IPV4_ROUTE,
                          info->nlh, GFP_KERNEL);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV4_ROUTE, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV4_ROUTE, err);
 }
 
 /* Return the first fib alias matching TOS with

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 8e5d47a606021a1eb677f7c58d6c715d47452677..11879283ad523cead9417f9d9c9386f9e09b7450 100644 (file)
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -321,7 +321,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
                        e->error = -ETIMEDOUT;
                        memset(&e->msg, 0, sizeof(e->msg));
 
-                       rtnl_unicast(skb, NETLINK_CB(skb).pid);
+                       rtnl_unicast(skb, &init_net, NETLINK_CB(skb).pid);
                } else
                        kfree_skb(skb);
        }
@@ -533,7 +533,7 @@ static void ipmr_cache_resolve(struct mfc_cache *uc, struct mfc_cache *c)
                                memset(&e->msg, 0, sizeof(e->msg));
                        }
 
-                       rtnl_unicast(skb, NETLINK_CB(skb).pid);
+                       rtnl_unicast(skb, &init_net, NETLINK_CB(skb).pid);
                } else
                        ip_mr_forward(skb, c, 0);
        }

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 1d2839571d2f8852b74fba174c68b641314cb477..e4b6fb4b1f4f983953c354eff95ec8af57241f56 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2610,7 +2610,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
        if (err <= 0)
                goto errout_free;
 
-       err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 errout:
        return err;
 

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 26de8ee5095b5ad51e5cc5a96144e4c4dfc71b78..6c8b193474ba500b2f0a5a62d2e9d2d590c82e17 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3397,7 +3397,7 @@ static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr* nlh,
                kfree_skb(skb);
                goto errout_ifa;
        }
-       err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 errout_ifa:
        in6_ifa_put(ifa);
 errout:
@@ -3420,10 +3420,10 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
 }
 
 static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
@@ -3628,10 +3628,10 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
 }
 
 static inline size_t inet6_prefix_nlmsg_size(void)
@@ -3697,10 +3697,10 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev,
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV6_PREFIX, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_PREFIX, err);
 }
 
 static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)

diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index b9b5d57071424dd9da65c2cabc563907cf07977b..6f1ca607eddaeadff6b24d79fc522f8ee8ebe6e2 100644 (file)
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -549,7 +549,7 @@ static int ip6addrlbl_get(struct sk_buff *in_skb, struct nlmsghdr* nlh,
                goto out;
        }
 
-       err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 out:
        return err;
 }

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index b2531f80317e405bae41c93ff6d80cef240ab0c7..b87f9d245e2e6b00619c2c4e84eddcbefb2d8a5f 100644 (file)
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1049,7 +1049,8 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
                &ipv6_hdr(ra)->saddr);
        nlmsg_end(skb, nlh);
 
-       err = rtnl_notify(skb, 0, RTNLGRP_ND_USEROPT, NULL, GFP_ATOMIC);
+       err = rtnl_notify(skb, &init_net, 0, RTNLGRP_ND_USEROPT, NULL,
+                         GFP_ATOMIC);
        if (err < 0)
                goto errout;
 
@@ -1059,7 +1060,7 @@ nla_put_failure:
        nlmsg_free(skb);
        err = -EMSGSIZE;
 errout:
-       rtnl_set_sk_err(RTNLGRP_ND_USEROPT, err);
+       rtnl_set_sk_err(&init_net, RTNLGRP_ND_USEROPT, err);
 }
 
 static void ndisc_router_discovery(struct sk_buff *skb)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 5e1c5796761b3c108e625af12a55b020bf5ffc7a..d7ec4c9ffc4baa35a091d907652dae923715210d 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2230,7 +2230,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
                goto errout;
        }
 
-       err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 errout:
        return err;
 }
@@ -2260,10 +2260,10 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
                kfree_skb(skb);
                goto errout;
        }
-       err = rtnl_notify(skb, pid, RTNLGRP_IPV6_ROUTE, nlh, gfp_any());
+       err = rtnl_notify(skb, &init_net, pid, RTNLGRP_IPV6_ROUTE, nlh, gfp_any());
 errout:
        if (err < 0)
-               rtnl_set_sk_err(RTNLGRP_IPV6_ROUTE, err);
+               rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_ROUTE, err);
 }
 
 /*

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 852829139c670d45581308fa2dd097862537248d..81506474a4f769bde9cb0e5349d2977962923cce 100644 (file)
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -660,7 +660,7 @@ act_get_notify(u32 pid, struct nlmsghdr *n, struct tc_action *a, int event)
                return -EINVAL;
        }
 
-       return rtnl_unicast(skb, pid);
+       return rtnl_unicast(skb, &init_net, pid);
 }
 
 static struct tc_action *
@@ -781,7 +781,7 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid)
        nlh->nlmsg_flags |= NLM_F_ROOT;
        module_put(a->ops->owner);
        kfree(a);
-       err = rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+       err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
        if (err > 0)
                return 0;
 
@@ -844,7 +844,7 @@ tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event)
 
                /* now do the delete */
                tcf_action_destroy(head, 0);
-               ret = rtnetlink_send(skb, pid, RTNLGRP_TC,
+               ret = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC,
                                     n->nlmsg_flags&NLM_F_ECHO);
                if (ret > 0)
                        return 0;
@@ -888,7 +888,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
        nlh->nlmsg_len = skb_tail_pointer(skb) - b;
        NETLINK_CB(skb).dst_group = RTNLGRP_TC;
 
-       err = rtnetlink_send(skb, pid, RTNLGRP_TC, flags&NLM_F_ECHO);
+       err = rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, flags&NLM_F_ECHO);
        if (err > 0)
                err = 0;
        return err;

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index fdab6a530bba89dd65787627461c05fe830f1007..80dccac769d0bbd32aedc61b01bdc7757315bea7 100644 (file)
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -361,7 +361,7 @@ static int tfilter_notify(struct sk_buff *oskb, struct nlmsghdr *n,
                return -EINVAL;
        }
 
-       return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+       return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
 }
 
 struct tcf_dump_args

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index f30e3f7ad885b50238b3682875558e6a8f9c6358..273c628be0540350554f39068489e145eab1b85c 100644 (file)
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -872,7 +872,7 @@ static int qdisc_notify(struct sk_buff *oskb, struct nlmsghdr *n,
        }
 
        if (skb->len)
-               return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+               return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
 
 err_out:
        kfree_skb(skb);
@@ -1103,7 +1103,7 @@ static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n,
                return -EINVAL;
        }
 
-       return rtnetlink_send(skb, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
+       return rtnetlink_send(skb, &init_net, pid, RTNLGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
 }
 
 struct qdisc_dump_args

diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 47e80cc2077c23fd207ce01478f8761f4c0baa05..db03ed5ce05564a879c531ba2d1c6aeddd116f73 100644 (file)
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -1137,7 +1137,7 @@ static void wireless_nlevent_process(unsigned long data)
        struct sk_buff *skb;
 
        while ((skb = skb_dequeue(&wireless_nlevent_queue)))
-               rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+               rtnl_notify(skb, &init_net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
 }
 
 static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
@@ -1189,6 +1189,9 @@ static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
        struct sk_buff *skb;
        int err;
 
+       if (dev->nd_net != &init_net)
+               return;
+
        skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
        if (!skb)
                return;