netconf: advertise mc_forwarding status

[~andy/linux] / net / ipv6 / ip6mr.c

diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 4532973f0dd4fc8fd3467a81cc0a2ce0581c72f1..1c05fe604d37049029b4c8ddfb4c5ef4aa0f4ab6 100644 (file)
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -52,6 +52,7 @@
 #include <linux/netfilter_ipv6.h>
 #include <linux/export.h>
 #include <net/ip6_checksum.h>
+#include <linux/netconf.h>
 
 struct mr6_table {
        struct list_head        list;
@@ -66,8 +67,8 @@ struct mr6_table {
        struct mif_device       vif6_table[MAXMIFS];
        int                     maxvif;
        atomic_t                cache_resolve_queue_len;
-       int                     mroute_do_assert;
-       int                     mroute_do_pim;
+       bool                    mroute_do_assert;
+       bool                    mroute_do_pim;
 #ifdef CONFIG_IPV6_PIMSM_V2
        int                     mroute_reg_vif_num;
 #endif
@@ -205,7 +206,7 @@ static int ip6mr_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
        return 0;
 }
 
-static const struct fib_rules_ops __net_initdata ip6mr_rules_ops_template = {
+static const struct fib_rules_ops __net_initconst ip6mr_rules_ops_template = {
        .family         = RTNL_FAMILY_IP6MR,
        .rule_size      = sizeof(struct ip6mr_rule),
        .addr_size      = sizeof(struct in6_addr),
@@ -805,8 +806,12 @@ static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
        dev_set_allmulti(dev, -1);
 
        in6_dev = __in6_dev_get(dev);
-       if (in6_dev)
+       if (in6_dev) {
                in6_dev->cnf.mc_forwarding--;
+               inet6_netconf_notify_devconf(dev_net(dev),
+                                            NETCONFA_MC_FORWARDING,
+                                            dev->ifindex, &in6_dev->cnf);
+       }
 
        if (v->flags & MIFF_REGISTER)
                unregister_netdevice_queue(dev, head);
@@ -838,7 +843,7 @@ static void ip6mr_destroy_unres(struct mr6_table *mrt, struct mfc6_cache *c)
                        nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
                        skb_trim(skb, nlh->nlmsg_len);
                        ((struct nlmsgerr *)NLMSG_DATA(nlh))->error = -ETIMEDOUT;
-                       rtnl_unicast(skb, net, NETLINK_CB(skb).pid);
+                       rtnl_unicast(skb, net, NETLINK_CB(skb).portid);
                } else
                        kfree_skb(skb);
        }
@@ -958,8 +963,12 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
        }
 
        in6_dev = __in6_dev_get(dev);
-       if (in6_dev)
+       if (in6_dev) {
                in6_dev->cnf.mc_forwarding++;
+               inet6_netconf_notify_devconf(dev_net(dev),
+                                            NETCONFA_MC_FORWARDING,
+                                            dev->ifindex, &in6_dev->cnf);
+       }
 
        /*
         *      Fill in the VIF structures
@@ -1052,7 +1061,7 @@ static void ip6mr_cache_resolve(struct net *net, struct mr6_table *mrt,
                                skb_trim(skb, nlh->nlmsg_len);
                                ((struct nlmsgerr *)NLMSG_DATA(nlh))->error = -EMSGSIZE;
                        }
-                       rtnl_unicast(skb, net, NETLINK_CB(skb).pid);
+                       rtnl_unicast(skb, net, NETLINK_CB(skb).portid);
                } else
                        ip6_mr_forward(net, mrt, skb, c);
        }
@@ -1513,6 +1522,9 @@ static int ip6mr_sk_init(struct mr6_table *mrt, struct sock *sk)
        if (likely(mrt->mroute6_sk == NULL)) {
                mrt->mroute6_sk = sk;
                net->ipv6.devconf_all->mc_forwarding++;
+               inet6_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING,
+                                            NETCONFA_IFINDEX_ALL,
+                                            net->ipv6.devconf_all);
        }
        else
                err = -EADDRINUSE;
@@ -1535,6 +1547,10 @@ int ip6mr_sk_done(struct sock *sk)
                        write_lock_bh(&mrt_lock);
                        mrt->mroute6_sk = NULL;
                        net->ipv6.devconf_all->mc_forwarding--;
+                       inet6_netconf_notify_devconf(net,
+                                                    NETCONFA_MC_FORWARDING,
+                                                    NETCONFA_IFINDEX_ALL,
+                                                    net->ipv6.devconf_all);
                        write_unlock_bh(&mrt_lock);
 
                        mroute_clean_tables(mrt);
@@ -1583,7 +1599,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
                return -ENOENT;
 
        if (optname != MRT6_INIT) {
-               if (sk != mrt->mroute6_sk && !capable(CAP_NET_ADMIN))
+               if (sk != mrt->mroute6_sk && !ns_capable(net->user_ns, CAP_NET_ADMIN))
                        return -EACCES;
        }
 
@@ -1646,9 +1662,12 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
        case MRT6_ASSERT:
        {
                int v;
+
+               if (optlen != sizeof(v))
+                       return -EINVAL;
                if (get_user(v, (int __user *)optval))
                        return -EFAULT;
-               mrt->mroute_do_assert = !!v;
+               mrt->mroute_do_assert = v;
                return 0;
        }
 
@@ -1656,6 +1675,9 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
        case MRT6_PIM:
        {
                int v;
+
+               if (optlen != sizeof(v))
+                       return -EINVAL;
                if (get_user(v, (int __user *)optval))
                        return -EFAULT;
                v = !!v;
@@ -2202,12 +2224,12 @@ int ip6mr_get_route(struct net *net,
 }
 
 static int ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
-                            u32 pid, u32 seq, struct mfc6_cache *c)
+                            u32 portid, u32 seq, struct mfc6_cache *c)
 {
        struct nlmsghdr *nlh;
        struct rtmsg *rtm;
 
-       nlh = nlmsg_put(skb, pid, seq, RTM_NEWROUTE, sizeof(*rtm), NLM_F_MULTI);
+       nlh = nlmsg_put(skb, portid, seq, RTM_NEWROUTE, sizeof(*rtm), NLM_F_MULTI);
        if (nlh == NULL)
                return -EMSGSIZE;
 
@@ -2260,7 +2282,7 @@ static int ip6mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
                                if (e < s_e)
                                        goto next_entry;
                                if (ip6mr_fill_mroute(mrt, skb,
-                                                     NETLINK_CB(cb->skb).pid,
+                                                     NETLINK_CB(cb->skb).portid,
                                                      cb->nlh->nlmsg_seq,
                                                      mfc) < 0)
                                        goto done;