#include <linux/kernel.h>
#include <linux/net.h>
+#include <linux/poll.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <linux/phonet.h>
#include <net/phonet/phonet.h>
+#include <net/phonet/pep.h>
#include <net/phonet/pn_dev.h>
static int pn_socket_release(struct socket *sock)
* 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;
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))
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);
return 0; /* socket was already bound */
}
+static int pn_socket_accept(struct socket *sock, struct socket *newsock,
+ int flags)
+{
+ struct sock *sk = sock->sk;
+ struct sock *newsk;
+ int err;
+
+ newsk = sk->sk_prot->accept(sk, flags, &err);
+ if (!newsk)
+ return err;
+
+ lock_sock(newsk);
+ sock_graft(newsk, newsock);
+ newsock->state = SS_CONNECTED;
+ release_sock(newsk);
+ return 0;
+}
+
static int pn_socket_getname(struct socket *sock, struct sockaddr *addr,
int *sockaddr_len, int peer)
{
return 0;
}
+static unsigned int pn_socket_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
+{
+ struct sock *sk = sock->sk;
+ struct pep_sock *pn = pep_sk(sk);
+ unsigned int mask = 0;
+
+ poll_wait(file, &sock->wait, wait);
+
+ switch (sk->sk_state) {
+ case TCP_LISTEN:
+ return hlist_empty(&pn->ackq) ? 0 : POLLIN;
+ case TCP_CLOSE:
+ return POLLERR;
+ }
+
+ if (!skb_queue_empty(&sk->sk_receive_queue))
+ mask |= POLLIN | POLLRDNORM;
+ if (!skb_queue_empty(&pn->ctrlreq_queue))
+ mask |= POLLPRI;
+ if (!mask && sk->sk_state == TCP_CLOSE_WAIT)
+ return POLLHUP;
+
+ if (sk->sk_state == TCP_ESTABLISHED && atomic_read(&pn->tx_credits))
+ mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+
+ return mask;
+}
+
static int pn_socket_ioctl(struct socket *sock, unsigned int cmd,
unsigned long arg)
{
return sk->sk_prot->ioctl(sk, cmd, arg);
}
+static int pn_socket_listen(struct socket *sock, int backlog)
+{
+ struct sock *sk = sock->sk;
+ int err = 0;
+
+ if (sock->state != SS_UNCONNECTED)
+ return -EINVAL;
+ if (pn_socket_autobind(sock))
+ return -ENOBUFS;
+
+ lock_sock(sk);
+ if (sk->sk_state != TCP_CLOSE) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ sk->sk_state = TCP_LISTEN;
+ sk->sk_ack_backlog = 0;
+ sk->sk_max_ack_backlog = backlog;
+out:
+ release_sock(sk);
+ return err;
+}
+
static int pn_socket_sendmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *m, size_t total_len)
{
.sendpage = sock_no_sendpage,
};
+const struct proto_ops phonet_stream_ops = {
+ .family = AF_PHONET,
+ .owner = THIS_MODULE,
+ .release = pn_socket_release,
+ .bind = pn_socket_bind,
+ .connect = sock_no_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = pn_socket_accept,
+ .getname = pn_socket_getname,
+ .poll = pn_socket_poll,
+ .ioctl = pn_socket_ioctl,
+ .listen = pn_socket_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+ .sendmsg = pn_socket_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+};
+EXPORT_SYMBOL(phonet_stream_ops);
+
static DEFINE_MUTEX(port_mutex);
/* allocate port for a socket */
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;
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;
} 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;
return 0;
}
EXPORT_SYMBOL(pn_sock_get_port);
+
+#ifdef CONFIG_PROC_FS
+static struct sock *pn_sock_get_idx(struct seq_file *seq, loff_t pos)
+{
+ struct net *net = seq_file_net(seq);
+ struct hlist_node *node;
+ struct sock *sknode;
+
+ sk_for_each(sknode, node, &pnsocks.hlist) {
+ if (!net_eq(net, sock_net(sknode)))
+ continue;
+ if (!pos)
+ return sknode;
+ pos--;
+ }
+ return NULL;
+}
+
+static struct sock *pn_sock_get_next(struct seq_file *seq, struct sock *sk)
+{
+ struct net *net = seq_file_net(seq);
+
+ do
+ sk = sk_next(sk);
+ while (sk && !net_eq(net, sock_net(sk)));
+
+ return sk;
+}
+
+static void *pn_sock_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(pnsocks.lock)
+{
+ spin_lock_bh(&pnsocks.lock);
+ return *pos ? pn_sock_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *pn_sock_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct sock *sk;
+
+ if (v == SEQ_START_TOKEN)
+ sk = pn_sock_get_idx(seq, 0);
+ else
+ sk = pn_sock_get_next(seq, v);
+ (*pos)++;
+ return sk;
+}
+
+static void pn_sock_seq_stop(struct seq_file *seq, void *v)
+ __releases(pnsocks.lock)
+{
+ spin_unlock_bh(&pnsocks.lock);
+}
+
+static int pn_sock_seq_show(struct seq_file *seq, void *v)
+{
+ int len;
+
+ if (v == SEQ_START_TOKEN)
+ seq_printf(seq, "%s%n", "pt loc rem rs st tx_queue rx_queue "
+ " uid inode ref pointer drops", &len);
+ else {
+ struct sock *sk = v;
+ struct pn_sock *pn = pn_sk(sk);
+
+ seq_printf(seq, "%2d %04X:%04X:%02X %02X %08X:%08X %5d %lu "
+ "%d %p %d%n",
+ sk->sk_protocol, pn->sobject, 0, pn->resource,
+ sk->sk_state,
+ sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk),
+ sock_i_uid(sk), sock_i_ino(sk),
+ atomic_read(&sk->sk_refcnt), sk,
+ atomic_read(&sk->sk_drops), &len);
+ }
+ seq_printf(seq, "%*s\n", 127 - len, "");
+ return 0;
+}
+
+static const struct seq_operations pn_sock_seq_ops = {
+ .start = pn_sock_seq_start,
+ .next = pn_sock_seq_next,
+ .stop = pn_sock_seq_stop,
+ .show = pn_sock_seq_show,
+};
+
+static int pn_sock_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &pn_sock_seq_ops,
+ sizeof(struct seq_net_private));
+}
+
+const struct file_operations pn_sock_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = pn_sock_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
+};
+#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff