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Phonet: basic net namespace support

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Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rémi Denis-Courmont 2008-12-03 15:42:56 -08:00 committed by David S. Miller
parent d81d228567
commit 5240488198
5 changed files with 14 additions and 15 deletions
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2
include/net/phonet/phonet.h
View file

@ -46,7 +46,7 @@ static inline struct pn_sock *pn_sk(struct sock *sk)
extern const struct proto_ops phonet_dgram_ops;
struct sock *pn_find_sock_by_sa(const struct sockaddr_pn *sa);
struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *sa);
void phonet_get_local_port_range(int *min, int *max);
void pn_sock_hash(struct sock *sk);
void pn_sock_unhash(struct sock *sk);

2
include/net/phonet/pn_dev.h
View file

@ -43,7 +43,7 @@ struct net_device *phonet_device_get(struct net *net);
int phonet_address_add(struct net_device *dev, u8 addr);
int phonet_address_del(struct net_device *dev, u8 addr);
u8 phonet_address_get(struct net_device *dev, u8 addr);
int phonet_address_lookup(u8 addr);
int phonet_address_lookup(struct net *net, u8 addr);
#define PN_NO_ADDR 0xff

8
net/phonet/af_phonet.c
View file

@ -67,9 +67,6 @@ static int pn_socket_create(struct net *net, struct socket *sock, int protocol)
struct phonet_protocol *pnp;
int err;
if (net != &init_net)
return -EAFNOSUPPORT;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@ -352,9 +349,6 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev,
struct sockaddr_pn sa;
u16 len;
if (dev_net(dev) != &init_net)
goto out;
/* check we have at least a full Phonet header */
if (!pskb_pull(skb, sizeof(struct phonethdr)))
goto out;
@ -373,7 +367,7 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev,
if (pn_sockaddr_get_addr(&sa) == 0)
goto out; /* currently, we cannot be device 0 */
sk = pn_find_sock_by_sa(&sa);
sk = pn_find_sock_by_sa(dev_net(dev), &sa);
if (sk == NULL) {
if (can_respond(skb)) {
send_obj_unreachable(skb);

6
net/phonet/pn_dev.c
View file

@ -76,7 +76,7 @@ struct net_device *phonet_device_get(struct net *net)
dev = pnd->netdev;
BUG_ON(!dev);
if (dev_net(dev) == net &&
if (net_eq(dev_net(dev), net) &&
(dev->reg_state == NETREG_REGISTERED) &&
((pnd->netdev->flags & IFF_UP)) == IFF_UP)
break;
@ -140,12 +140,14 @@ u8 phonet_address_get(struct net_device *dev, u8 addr)
return addr;
}
int phonet_address_lookup(u8 addr)
int phonet_address_lookup(struct net *net, u8 addr)
{
struct phonet_device *pnd;
spin_lock_bh(&pndevs.lock);
list_for_each_entry(pnd, &pndevs.list, list) {
if (!net_eq(dev_net(pnd->netdev), net))
continue;
/* Don't allow unregistering devices! */
if ((pnd->netdev->reg_state != NETREG_REGISTERED) ||
((pnd->netdev->flags & IFF_UP)) != IFF_UP)

11
net/phonet/socket.c
View file

@ -57,7 +57,7 @@ static struct {
* Find address based on socket address, match only certain fields.
* Also grab sock if it was found. Remember to sock_put it later.
*/
struct sock *pn_find_sock_by_sa(const struct sockaddr_pn *spn)
struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *spn)
{
struct hlist_node *node;
struct sock *sknode;
@ -71,6 +71,8 @@ struct sock *pn_find_sock_by_sa(const struct sockaddr_pn *spn)
struct pn_sock *pn = pn_sk(sknode);
BUG_ON(!pn->sobject); /* unbound socket */
if (!net_eq(sock_net(sknode), net))
continue;
if (pn_port(obj)) {
/* Look up socket by port */
if (pn_port(pn->sobject) != pn_port(obj))
@ -130,7 +132,7 @@ static int pn_socket_bind(struct socket *sock, struct sockaddr *addr, int len)
handle = pn_sockaddr_get_object((struct sockaddr_pn *)addr);
saddr = pn_addr(handle);
if (saddr && phonet_address_lookup(saddr))
if (saddr && phonet_address_lookup(sock_net(sk), saddr))
return -EADDRNOTAVAIL;
lock_sock(sk);
@ -361,6 +363,7 @@ static DEFINE_MUTEX(port_mutex);
int pn_sock_get_port(struct sock *sk, unsigned short sport)
{
static int port_cur;
struct net *net = sock_net(sk);
struct pn_sock *pn = pn_sk(sk);
struct sockaddr_pn try_sa;
struct sock *tmpsk;
@ -381,7 +384,7 @@ int pn_sock_get_port(struct sock *sk, unsigned short sport)
port_cur = pmin;
pn_sockaddr_set_port(&try_sa, port_cur);
tmpsk = pn_find_sock_by_sa(&try_sa);
tmpsk = pn_find_sock_by_sa(net, &try_sa);
if (tmpsk == NULL) {
sport = port_cur;
goto found;
@ -391,7 +394,7 @@ int pn_sock_get_port(struct sock *sk, unsigned short sport)
} else {
/* try to find specific port */
pn_sockaddr_set_port(&try_sa, sport);
tmpsk = pn_find_sock_by_sa(&try_sa);
tmpsk = pn_find_sock_by_sa(net, &try_sa);
if (tmpsk == NULL)
/* No sock there! We can use that port... */
goto found;