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Commit ca8def14 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

[SIT]: Add net/sit_net argument to some functions. 



... to make them prepared for future hashes and fallback device
move on the struct sit_net.

Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8190d900

net/ipv6/sit.c

+30 −19
Original line number Diff line number Diff line
@@ -82,7 +82,8 @@ static struct ip_tunnel **tunnels[4] = { tunnels_wc, tunnels_l, tunnels_r, tunne 


static DEFINE_RWLOCK(ipip6_lock);



static struct ip_tunnel * ipip6_tunnel_lookup(__be32 remote, __be32 local)

static struct ip_tunnel * ipip6_tunnel_lookup(struct net *net,

		__be32 remote, __be32 local)

{

	unsigned h0 = HASH(remote);

	unsigned h1 = HASH(local);
@@ -106,7 +107,8 @@ static struct ip_tunnel * ipip6_tunnel_lookup(__be32 remote, __be32 local) 
	return NULL;

}



static struct ip_tunnel **__ipip6_bucket(struct ip_tunnel_parm *parms)

static struct ip_tunnel **__ipip6_bucket(struct sit_net *sitn,

		struct ip_tunnel_parm *parms)

{

	__be32 remote = parms->iph.daddr;

	__be32 local = parms->iph.saddr;
@@ -124,16 +126,17 @@ static struct ip_tunnel **__ipip6_bucket(struct ip_tunnel_parm *parms) 
	return &tunnels[prio][h];

}



static inline struct ip_tunnel **ipip6_bucket(struct ip_tunnel *t)

static inline struct ip_tunnel **ipip6_bucket(struct sit_net *sitn,

		struct ip_tunnel *t)

{

	return __ipip6_bucket(&t->parms);

	return __ipip6_bucket(sitn, &t->parms);

}



static void ipip6_tunnel_unlink(struct ip_tunnel *t)

static void ipip6_tunnel_unlink(struct sit_net *sitn, struct ip_tunnel *t)

{

	struct ip_tunnel **tp;



	for (tp = ipip6_bucket(t); *tp; tp = &(*tp)->next) {

	for (tp = ipip6_bucket(sitn, t); *tp; tp = &(*tp)->next) {

		if (t == *tp) {

			write_lock_bh(&ipip6_lock);

			*tp = t->next;
@@ -143,9 +146,9 @@ static void ipip6_tunnel_unlink(struct ip_tunnel *t) 
	}

}



static void ipip6_tunnel_link(struct ip_tunnel *t)

static void ipip6_tunnel_link(struct sit_net *sitn, struct ip_tunnel *t)

{

	struct ip_tunnel **tp = ipip6_bucket(t);

	struct ip_tunnel **tp = ipip6_bucket(sitn, t);



	t->next = *tp;

	write_lock_bh(&ipip6_lock);
@@ -153,15 +156,17 @@ static void ipip6_tunnel_link(struct ip_tunnel *t) 
	write_unlock_bh(&ipip6_lock);

}



static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int create)

static struct ip_tunnel * ipip6_tunnel_locate(struct net *net,

		struct ip_tunnel_parm *parms, int create)

{

	__be32 remote = parms->iph.daddr;

	__be32 local = parms->iph.saddr;

	struct ip_tunnel *t, **tp, *nt;

	struct net_device *dev;

	char name[IFNAMSIZ];

	struct sit_net *sitn = net_generic(net, sit_net_id);



	for (tp = __ipip6_bucket(parms); (t = *tp) != NULL; tp = &t->next) {

	for (tp = __ipip6_bucket(sitn, parms); (t = *tp) != NULL; tp = &t->next) {

		if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)

			return t;

	}
@@ -194,7 +199,7 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int 


	dev_hold(dev);



	ipip6_tunnel_link(nt);

	ipip6_tunnel_link(sitn, nt);

	return nt;



failed_free:
@@ -378,13 +383,16 @@ isatap_chksrc(struct sk_buff *skb, struct iphdr *iph, struct ip_tunnel *t) 


static void ipip6_tunnel_uninit(struct net_device *dev)

{

	struct net *net = dev_net(dev);

	struct sit_net *sitn = net_generic(net, sit_net_id);



	if (dev == ipip6_fb_tunnel_dev) {

		write_lock_bh(&ipip6_lock);

		tunnels_wc[0] = NULL;

		write_unlock_bh(&ipip6_lock);

		dev_put(dev);

	} else {

		ipip6_tunnel_unlink(netdev_priv(dev));

		ipip6_tunnel_unlink(sitn, netdev_priv(dev));

		ipip6_tunnel_del_prl(netdev_priv(dev), NULL);

		dev_put(dev);

	}
@@ -436,7 +444,7 @@ static int ipip6_err(struct sk_buff *skb, u32 info) 
	err = -ENOENT;



	read_lock(&ipip6_lock);

	t = ipip6_tunnel_lookup(iph->daddr, iph->saddr);

	t = ipip6_tunnel_lookup(&init_net, iph->daddr, iph->saddr);

	if (t == NULL || t->parms.iph.daddr == 0)

		goto out;
@@ -556,7 +564,8 @@ static int ipip6_rcv(struct sk_buff *skb) 
	iph = ip_hdr(skb);



	read_lock(&ipip6_lock);

	if ((tunnel = ipip6_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {

	if ((tunnel = ipip6_tunnel_lookup(&init_net,

					iph->saddr, iph->daddr)) != NULL) {

		secpath_reset(skb);

		skb->mac_header = skb->network_header;

		skb_reset_network_header(skb);
@@ -847,6 +856,8 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) 
	struct ip_tunnel_parm p;

	struct ip_tunnel_prl prl;

	struct ip_tunnel *t;

	struct net *net = dev_net(dev);

	struct sit_net *sitn = net_generic(net, sit_net_id);



	switch (cmd) {

	case SIOCGETTUNNEL:
@@ -856,7 +867,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) 
				err = -EFAULT;

				break;

			}

			t = ipip6_tunnel_locate(&p, 0);

			t = ipip6_tunnel_locate(net, &p, 0);

		}

		if (t == NULL)

			t = netdev_priv(dev);
@@ -882,7 +893,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) 
		if (p.iph.ttl)

			p.iph.frag_off |= htons(IP_DF);



		t = ipip6_tunnel_locate(&p, cmd == SIOCADDTUNNEL);

		t = ipip6_tunnel_locate(net, &p, cmd == SIOCADDTUNNEL);



		if (dev != ipip6_fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {

			if (t != NULL) {
@@ -897,12 +908,12 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) 
					break;

				}

				t = netdev_priv(dev);

				ipip6_tunnel_unlink(t);

				ipip6_tunnel_unlink(sitn, t);

				t->parms.iph.saddr = p.iph.saddr;

				t->parms.iph.daddr = p.iph.daddr;

				memcpy(dev->dev_addr, &p.iph.saddr, 4);

				memcpy(dev->broadcast, &p.iph.daddr, 4);

				ipip6_tunnel_link(t);

				ipip6_tunnel_link(sitn, t);

				netdev_state_change(dev);

			}

		}
@@ -934,7 +945,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) 
			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))

				goto done;

			err = -ENOENT;

			if ((t = ipip6_tunnel_locate(&p, 0)) == NULL)

			if ((t = ipip6_tunnel_locate(net, &p, 0)) == NULL)

				goto done;

			err = -EPERM;

			if (t == netdev_priv(ipip6_fb_tunnel_dev))