Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

[pandora-kernel.git] / net / ipv4 / igmp.c

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 68e84a9..f70fac6 100644 (file)
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -289,6 +289,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
        struct rtable *rt;
        struct iphdr *pip;
        struct igmpv3_report *pig;
+       struct net *net = dev_net(dev);
 
        skb = alloc_skb(size + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
        if (skb == NULL)
@@ -299,7 +300,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
                                    .nl_u = { .ip4_u = {
                                    .daddr = IGMPV3_ALL_MCR } },
                                    .proto = IPPROTO_IGMP };
-               if (ip_route_output_key(&init_net, &rt, &fl)) {
+               if (ip_route_output_key(net, &rt, &fl)) {
                        kfree_skb(skb);
                        return NULL;
                }
@@ -629,6 +630,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
        struct igmphdr *ih;
        struct rtable *rt;
        struct net_device *dev = in_dev->dev;
+       struct net *net = dev_net(dev);
        __be32  group = pmc ? pmc->multiaddr : 0;
        __be32  dst;
 
@@ -643,7 +645,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
                struct flowi fl = { .oif = dev->ifindex,
                                    .nl_u = { .ip4_u = { .daddr = dst } },
                                    .proto = IPPROTO_IGMP };
-               if (ip_route_output_key(&init_net, &rt, &fl))
+               if (ip_route_output_key(net, &rt, &fl))
                        return -1;
        }
        if (rt->rt_src == 0) {
@@ -1196,9 +1198,6 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
 
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        for (im=in_dev->mc_list; im; im=im->next) {
                if (im->multiaddr == addr) {
                        im->users++;
@@ -1278,9 +1277,6 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
 
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        for (ip=&in_dev->mc_list; (i=*ip)!=NULL; ip=&i->next) {
                if (i->multiaddr==addr) {
                        if (--i->users == 0) {
@@ -1308,9 +1304,6 @@ void ip_mc_down(struct in_device *in_dev)
 
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        for (i=in_dev->mc_list; i; i=i->next)
                igmp_group_dropped(i);
 
@@ -1331,9 +1324,6 @@ void ip_mc_init_dev(struct in_device *in_dev)
 {
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        in_dev->mc_tomb = NULL;
 #ifdef CONFIG_IP_MULTICAST
        in_dev->mr_gq_running = 0;
@@ -1357,9 +1347,6 @@ void ip_mc_up(struct in_device *in_dev)
 
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
 
        for (i=in_dev->mc_list; i; i=i->next)
@@ -1376,9 +1363,6 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
 
        ASSERT_RTNL();
 
-       if (dev_net(in_dev->dev) != &init_net)
-               return;
-
        /* Deactivate timers */
        ip_mc_down(in_dev);
 
@@ -1395,7 +1379,7 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
        write_unlock_bh(&in_dev->mc_list_lock);
 }
 
-static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
+static struct in_device *ip_mc_find_dev(struct net *net, struct ip_mreqn *imr)
 {
        struct flowi fl = { .nl_u = { .ip4_u =
                                      { .daddr = imr->imr_multiaddr.s_addr } } };
@@ -1404,19 +1388,19 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
        struct in_device *idev = NULL;
 
        if (imr->imr_ifindex) {
-               idev = inetdev_by_index(&init_net, imr->imr_ifindex);
+               idev = inetdev_by_index(net, imr->imr_ifindex);
                if (idev)
                        __in_dev_put(idev);
                return idev;
        }
        if (imr->imr_address.s_addr) {
-               dev = ip_dev_find(&init_net, imr->imr_address.s_addr);
+               dev = ip_dev_find(net, imr->imr_address.s_addr);
                if (!dev)
                        return NULL;
                dev_put(dev);
        }
 
-       if (!dev && !ip_route_output_key(&init_net, &rt, &fl)) {
+       if (!dev && !ip_route_output_key(net, &rt, &fl)) {
                dev = rt->u.dst.dev;
                ip_rt_put(rt);
        }
@@ -1754,18 +1738,16 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
        struct ip_mc_socklist *iml=NULL, *i;
        struct in_device *in_dev;
        struct inet_sock *inet = inet_sk(sk);
+       struct net *net = sock_net(sk);
        int ifindex;
        int count = 0;
 
        if (!ipv4_is_multicast(addr))
                return -EINVAL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
 
-       in_dev = ip_mc_find_dev(imr);
+       in_dev = ip_mc_find_dev(net, imr);
 
        if (!in_dev) {
                iml = NULL;
@@ -1827,15 +1809,13 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
        struct inet_sock *inet = inet_sk(sk);
        struct ip_mc_socklist *iml, **imlp;
        struct in_device *in_dev;
+       struct net *net = sock_net(sk);
        __be32 group = imr->imr_multiaddr.s_addr;
        u32 ifindex;
        int ret = -EADDRNOTAVAIL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
-       in_dev = ip_mc_find_dev(imr);
+       in_dev = ip_mc_find_dev(net, imr);
        ifindex = imr->imr_ifindex;
        for (imlp = &inet->mc_list; (iml = *imlp) != NULL; imlp = &iml->next) {
                if (iml->multi.imr_multiaddr.s_addr != group)
@@ -1873,21 +1853,19 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
        struct in_device *in_dev = NULL;
        struct inet_sock *inet = inet_sk(sk);
        struct ip_sf_socklist *psl;
+       struct net *net = sock_net(sk);
        int leavegroup = 0;
        int i, j, rv;
 
        if (!ipv4_is_multicast(addr))
                return -EINVAL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
 
        imr.imr_multiaddr.s_addr = mreqs->imr_multiaddr;
        imr.imr_address.s_addr = mreqs->imr_interface;
        imr.imr_ifindex = ifindex;
-       in_dev = ip_mc_find_dev(&imr);
+       in_dev = ip_mc_find_dev(net, &imr);
 
        if (!in_dev) {
                err = -ENODEV;
@@ -2007,6 +1985,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
        struct in_device *in_dev;
        struct inet_sock *inet = inet_sk(sk);
        struct ip_sf_socklist *newpsl, *psl;
+       struct net *net = sock_net(sk);
        int leavegroup = 0;
 
        if (!ipv4_is_multicast(addr))
@@ -2015,15 +1994,12 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
            msf->imsf_fmode != MCAST_EXCLUDE)
                return -EINVAL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
 
        imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
        imr.imr_address.s_addr = msf->imsf_interface;
        imr.imr_ifindex = ifindex;
-       in_dev = ip_mc_find_dev(&imr);
+       in_dev = ip_mc_find_dev(net, &imr);
 
        if (!in_dev) {
                err = -ENODEV;
@@ -2094,19 +2070,17 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
        struct in_device *in_dev;
        struct inet_sock *inet = inet_sk(sk);
        struct ip_sf_socklist *psl;
+       struct net *net = sock_net(sk);
 
        if (!ipv4_is_multicast(addr))
                return -EINVAL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
 
        imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
        imr.imr_address.s_addr = msf->imsf_interface;
        imr.imr_ifindex = 0;
-       in_dev = ip_mc_find_dev(&imr);
+       in_dev = ip_mc_find_dev(net, &imr);
 
        if (!in_dev) {
                err = -ENODEV;
@@ -2163,9 +2137,6 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
        if (!ipv4_is_multicast(addr))
                return -EINVAL;
 
-       if (sock_net(sk) != &init_net)
-               return -EPROTONOSUPPORT;
-
        rtnl_lock();
 
        err = -EADDRNOTAVAIL;
@@ -2246,19 +2217,17 @@ void ip_mc_drop_socket(struct sock *sk)
 {
        struct inet_sock *inet = inet_sk(sk);
        struct ip_mc_socklist *iml;
+       struct net *net = sock_net(sk);
 
        if (inet->mc_list == NULL)
                return;
 
-       if (sock_net(sk) != &init_net)
-               return;
-
        rtnl_lock();
        while ((iml = inet->mc_list) != NULL) {
                struct in_device *in_dev;
                inet->mc_list = iml->next;
 
-               in_dev = inetdev_by_index(&init_net, iml->multi.imr_ifindex);
+               in_dev = inetdev_by_index(net, iml->multi.imr_ifindex);
                (void) ip_mc_leave_src(sk, iml, in_dev);
                if (in_dev != NULL) {
                        ip_mc_dec_group(in_dev, iml->multi.imr_multiaddr.s_addr);