ip_tr_mc_map(addr, haddr);
return 0;
case ARPHRD_INFINIBAND:
- ip_ib_mc_map(addr, haddr);
+ ip_ib_mc_map(addr, dev->broadcast, haddr);
return 0;
default:
if (dir) {
struct in_device *in_dev;
struct neigh_parms *parms;
- neigh->type = inet_addr_type(addr);
-
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
if (in_dev == NULL) {
return -EINVAL;
}
+ neigh->type = inet_addr_type(&init_net, addr);
+
parms = in_dev->arp_parms;
__neigh_parms_put(neigh->parms);
neigh->parms = neigh_parms_clone(parms);
switch (IN_DEV_ARP_ANNOUNCE(in_dev)) {
default:
case 0: /* By default announce any local IP */
- if (skb && inet_addr_type(ip_hdr(skb)->saddr) == RTN_LOCAL)
+ if (skb && inet_addr_type(&init_net, ip_hdr(skb)->saddr) == RTN_LOCAL)
saddr = ip_hdr(skb)->saddr;
break;
case 1: /* Restrict announcements of saddr in same subnet */
if (!skb)
break;
saddr = ip_hdr(skb)->saddr;
- if (inet_addr_type(saddr) == RTN_LOCAL) {
+ if (inet_addr_type(&init_net, saddr) == RTN_LOCAL) {
/* saddr should be known to target */
if (inet_addr_onlink(in_dev, target, saddr))
break;
read_unlock_bh(&neigh->lock);
}
-static int arp_ignore(struct in_device *in_dev, struct net_device *dev,
- __be32 sip, __be32 tip)
+static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)
{
int scope;
case 3: /* Do not reply for scope host addresses */
sip = 0;
scope = RT_SCOPE_LINK;
- dev = NULL;
break;
case 4: /* Reserved */
case 5:
default:
return 0;
}
- return !inet_confirm_addr(dev, sip, tip, scope);
+ return !inet_confirm_addr(in_dev, sip, tip, scope);
}
static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
int flag = 0;
/*unsigned long now; */
- if (ip_route_output_key(&rt, &fl) < 0)
+ if (ip_route_output_key(&init_net, &rt, &fl) < 0)
return 1;
if (rt->u.dst.dev != dev) {
NET_INC_STATS_BH(LINUX_MIB_ARPFILTER);
paddr = ((struct rtable*)skb->dst)->rt_gateway;
- if (arp_set_predefined(inet_addr_type(paddr), haddr, paddr, dev))
+ if (arp_set_predefined(inet_addr_type(&init_net, paddr), haddr, paddr, dev))
return 0;
n = __neigh_lookup(&arp_tbl, &paddr, dev, 1);
*/
struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
struct net_device *dev, __be32 src_ip,
- unsigned char *dest_hw, unsigned char *src_hw,
- unsigned char *target_hw)
+ const unsigned char *dest_hw,
+ const unsigned char *src_hw,
+ const unsigned char *target_hw)
{
struct sk_buff *skb;
struct arphdr *arp;
*/
void arp_send(int type, int ptype, __be32 dest_ip,
struct net_device *dev, __be32 src_ip,
- unsigned char *dest_hw, unsigned char *src_hw,
- unsigned char *target_hw)
+ const unsigned char *dest_hw, const unsigned char *src_hw,
+ const unsigned char *target_hw)
{
struct sk_buff *skb;
struct arphdr *arp;
unsigned char *arp_ptr;
struct rtable *rt;
- unsigned char *sha, *tha;
+ unsigned char *sha;
__be32 sip, tip;
u16 dev_type = dev->type;
int addr_type;
arp_ptr += dev->addr_len;
memcpy(&sip, arp_ptr, 4);
arp_ptr += 4;
- tha = arp_ptr;
arp_ptr += dev->addr_len;
memcpy(&tip, arp_ptr, 4);
/*
* Check for bad requests for 127.x.x.x and requests for multicast
* addresses. If this is one such, delete it.
*/
- if (LOOPBACK(tip) || MULTICAST(tip))
+ if (ipv4_is_loopback(tip) || ipv4_is_multicast(tip))
goto out;
/*
/* Special case: IPv4 duplicate address detection packet (RFC2131) */
if (sip == 0) {
if (arp->ar_op == htons(ARPOP_REQUEST) &&
- inet_addr_type(tip) == RTN_LOCAL &&
- !arp_ignore(in_dev,dev,sip,tip))
+ inet_addr_type(&init_net, tip) == RTN_LOCAL &&
+ !arp_ignore(in_dev, sip, tip))
arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha,
dev->dev_addr, sha);
goto out;
int dont_send = 0;
if (!dont_send)
- dont_send |= arp_ignore(in_dev,dev,sip,tip);
+ dont_send |= arp_ignore(in_dev,sip,tip);
if (!dont_send && IN_DEV_ARPFILTER(in_dev))
dont_send |= arp_filter(sip,tip,dev);
if (!dont_send)
}
goto out;
} else if (IN_DEV_FORWARD(in_dev)) {
- if ((rt->rt_flags&RTCF_DNAT) ||
- (addr_type == RTN_UNICAST && rt->u.dst.dev != dev &&
- (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &tip, dev, 0)))) {
+ if (addr_type == RTN_UNICAST && rt->u.dst.dev != dev &&
+ (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &init_net, &tip, dev, 0))) {
n = neigh_event_ns(&arp_tbl, sha, &sip, dev);
if (n)
neigh_release(n);
n = __neigh_lookup(&arp_tbl, &sip, dev, 0);
- if (IPV4_DEVCONF_ALL(ARP_ACCEPT)) {
+ if (IPV4_DEVCONF_ALL(dev->nd_net, ARP_ACCEPT)) {
/* Unsolicited ARP is not accepted by default.
It is possible, that this option should be enabled for some
devices (strip is candidate)
*/
if (n == NULL &&
arp->ar_op == htons(ARPOP_REPLY) &&
- inet_addr_type(sip) == RTN_UNICAST)
+ inet_addr_type(&init_net, sip) == RTN_UNICAST)
n = __neigh_lookup(&arp_tbl, &sip, dev, 1);
}
* Set (create) an ARP cache entry.
*/
-static int arp_req_set(struct arpreq *r, struct net_device * dev)
+static int arp_req_set_proxy(struct net *net, struct net_device *dev, int on)
{
- __be32 ip = ((struct sockaddr_in *) &r->arp_pa)->sin_addr.s_addr;
+ if (dev == NULL) {
+ IPV4_DEVCONF_ALL(net, PROXY_ARP) = on;
+ return 0;
+ }
+ if (__in_dev_get_rtnl(dev)) {
+ IN_DEV_CONF_SET(__in_dev_get_rtnl(dev), PROXY_ARP, on);
+ return 0;
+ }
+ return -ENXIO;
+}
+
+static int arp_req_set_public(struct net *net, struct arpreq *r,
+ struct net_device *dev)
+{
+ __be32 ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
+ __be32 mask = ((struct sockaddr_in *)&r->arp_netmask)->sin_addr.s_addr;
+
+ if (mask && mask != htonl(0xFFFFFFFF))
+ return -EINVAL;
+ if (!dev && (r->arp_flags & ATF_COM)) {
+ dev = dev_getbyhwaddr(net, r->arp_ha.sa_family,
+ r->arp_ha.sa_data);
+ if (!dev)
+ return -ENODEV;
+ }
+ if (mask) {
+ if (pneigh_lookup(&arp_tbl, net, &ip, dev, 1) == NULL)
+ return -ENOBUFS;
+ return 0;
+ }
+
+ return arp_req_set_proxy(net, dev, 1);
+}
+
+static int arp_req_set(struct net *net, struct arpreq *r,
+ struct net_device * dev)
+{
+ __be32 ip;
struct neighbour *neigh;
int err;
- if (r->arp_flags&ATF_PUBL) {
- __be32 mask = ((struct sockaddr_in *) &r->arp_netmask)->sin_addr.s_addr;
- if (mask && mask != htonl(0xFFFFFFFF))
- return -EINVAL;
- if (!dev && (r->arp_flags & ATF_COM)) {
- dev = dev_getbyhwaddr(&init_net, r->arp_ha.sa_family, r->arp_ha.sa_data);
- if (!dev)
- return -ENODEV;
- }
- if (mask) {
- if (pneigh_lookup(&arp_tbl, &ip, dev, 1) == NULL)
- return -ENOBUFS;
- return 0;
- }
- if (dev == NULL) {
- IPV4_DEVCONF_ALL(PROXY_ARP) = 1;
- return 0;
- }
- if (__in_dev_get_rtnl(dev)) {
- IN_DEV_CONF_SET(__in_dev_get_rtnl(dev), PROXY_ARP, 1);
- return 0;
- }
- return -ENXIO;
- }
+ if (r->arp_flags & ATF_PUBL)
+ return arp_req_set_public(net, r, dev);
+ ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
if (r->arp_flags & ATF_PERM)
r->arp_flags |= ATF_COM;
if (dev == NULL) {
struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip,
.tos = RTO_ONLINK } } };
struct rtable * rt;
- if ((err = ip_route_output_key(&rt, &fl)) != 0)
+ if ((err = ip_route_output_key(net, &rt, &fl)) != 0)
return err;
dev = rt->u.dst.dev;
ip_rt_put(rt);
return err;
}
-static int arp_req_delete(struct arpreq *r, struct net_device * dev)
+static int arp_req_delete_public(struct net *net, struct arpreq *r,
+ struct net_device *dev)
+{
+ __be32 ip = ((struct sockaddr_in *) &r->arp_pa)->sin_addr.s_addr;
+ __be32 mask = ((struct sockaddr_in *)&r->arp_netmask)->sin_addr.s_addr;
+
+ if (mask == htonl(0xFFFFFFFF))
+ return pneigh_delete(&arp_tbl, net, &ip, dev);
+
+ if (mask)
+ return -EINVAL;
+
+ return arp_req_set_proxy(net, dev, 0);
+}
+
+static int arp_req_delete(struct net *net, struct arpreq *r,
+ struct net_device * dev)
{
int err;
- __be32 ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
+ __be32 ip;
struct neighbour *neigh;
- if (r->arp_flags & ATF_PUBL) {
- __be32 mask =
- ((struct sockaddr_in *)&r->arp_netmask)->sin_addr.s_addr;
- if (mask == htonl(0xFFFFFFFF))
- return pneigh_delete(&arp_tbl, &ip, dev);
- if (mask == 0) {
- if (dev == NULL) {
- IPV4_DEVCONF_ALL(PROXY_ARP) = 0;
- return 0;
- }
- if (__in_dev_get_rtnl(dev)) {
- IN_DEV_CONF_SET(__in_dev_get_rtnl(dev),
- PROXY_ARP, 0);
- return 0;
- }
- return -ENXIO;
- }
- return -EINVAL;
- }
+ if (r->arp_flags & ATF_PUBL)
+ return arp_req_delete_public(net, r, dev);
+ ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
if (dev == NULL) {
struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip,
.tos = RTO_ONLINK } } };
struct rtable * rt;
- if ((err = ip_route_output_key(&rt, &fl)) != 0)
+ if ((err = ip_route_output_key(net, &rt, &fl)) != 0)
return err;
dev = rt->u.dst.dev;
ip_rt_put(rt);
* Handle an ARP layer I/O control request.
*/
-int arp_ioctl(unsigned int cmd, void __user *arg)
+int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg)
{
int err;
struct arpreq r;
rtnl_lock();
if (r.arp_dev[0]) {
err = -ENODEV;
- if ((dev = __dev_get_by_name(&init_net, r.arp_dev)) == NULL)
+ if ((dev = __dev_get_by_name(net, r.arp_dev)) == NULL)
goto out;
/* Mmmm... It is wrong... ARPHRD_NETROM==0 */
switch (cmd) {
case SIOCDARP:
- err = arp_req_delete(&r, dev);
+ err = arp_req_delete(net, &r, dev);
break;
case SIOCSARP:
- err = arp_req_set(&r, dev);
+ err = arp_req_set(net, &r, dev);
break;
case SIOCGARP:
err = arp_req_get(&r, dev);
static int arp_seq_open(struct inode *inode, struct file *file)
{
- return seq_open_private(file, &arp_seq_ops,
- sizeof(struct neigh_seq_state));
+ return seq_open_net(inode, file, &arp_seq_ops,
+ sizeof(struct neigh_seq_state));
}
static const struct file_operations arp_seq_fops = {
.open = arp_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release_private,
+ .release = seq_release_net,
};
static int __init arp_proc_init(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff