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[IPV4]: Pass the net pointer to the arp_req_set_proxy()

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This one will need to set the IPV4_DEVCONF_ALL(PROXY_ARP), but
there's no ways to get the net right in place, so we have to
pull one from the inet_ioctl's struct sock.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-12-16 13:30:39 -08:00 committed by David S. Miller
parent ea40b324d7
commit 32e569b727
3 changed files with 18 additions and 14 deletions
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2
include/net/arp.h
View File

@ -11,7 +11,7 @@ extern struct neigh_table arp_tbl;
extern void arp_init(void);
extern int arp_find(unsigned char *haddr, struct sk_buff *skb);
extern int arp_ioctl(unsigned int cmd, void __user *arg);
extern int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);
extern 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 *th);

2
net/ipv4/af_inet.c
View File

@ -798,7 +798,7 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
case SIOCDARP:
case SIOCGARP:
case SIOCSARP:
err = arp_ioctl(cmd, (void __user *)arg);
err = arp_ioctl(sk->sk_net, cmd, (void __user *)arg);
break;
case SIOCGIFADDR:
case SIOCSIFADDR:

28
net/ipv4/arp.c
View File

@ -952,7 +952,7 @@ out_of_mem:
* Set (create) an ARP cache entry.
*/
static int arp_req_set_proxy(struct net_device *dev, int on)
static int arp_req_set_proxy(struct net *net, struct net_device *dev, int on)
{
if (dev == NULL) {
IPV4_DEVCONF_ALL(PROXY_ARP) = on;
@ -965,7 +965,8 @@ static int arp_req_set_proxy(struct net_device *dev, int on)
return -ENXIO;
}
static int arp_req_set_public(struct arpreq *r, struct net_device *dev)
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;
@ -984,17 +985,18 @@ static int arp_req_set_public(struct arpreq *r, struct net_device *dev)
return 0;
}
return arp_req_set_proxy(dev, 1);
return arp_req_set_proxy(net, dev, 1);
}
static int arp_req_set(struct arpreq *r, struct net_device * dev)
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)
return arp_req_set_public(r, dev);
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)
@ -1080,7 +1082,8 @@ static int arp_req_get(struct arpreq *r, struct net_device *dev)
return err;
}
static int arp_req_delete_public(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;
@ -1091,17 +1094,18 @@ static int arp_req_delete_public(struct arpreq *r, struct net_device *dev)
if (mask)
return -EINVAL;
return arp_req_set_proxy(dev, 0);
return arp_req_set_proxy(net, dev, 0);
}
static int arp_req_delete(struct arpreq *r, struct net_device * dev)
static int arp_req_delete(struct net *net, struct arpreq *r,
struct net_device * dev)
{
int err;
__be32 ip;
struct neighbour *neigh;
if (r->arp_flags & ATF_PUBL)
return arp_req_delete_public(r, dev);
return arp_req_delete_public(net, r, dev);
ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
if (dev == NULL) {
@ -1131,7 +1135,7 @@ static int arp_req_delete(struct arpreq *r, struct net_device * dev)
* 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;
@ -1179,10 +1183,10 @@ int arp_ioctl(unsigned int cmd, void __user *arg)
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);