/*
* IPX proc routines
*
* Copyright(C) Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2002
*/
#include <linux/init.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/seq_file.h>
#include <net/net_namespace.h>
#include <net/tcp_states.h>
#include <net/ipx.h>
static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos)
{
struct ipx_interface *i;
list_for_each_entry(i, &ipx_interfaces, node)
if (!pos--)
goto out;
i = NULL;
out:
return i;
}
static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i)
{
struct ipx_interface *rc = NULL;
if (i->node.next != &ipx_interfaces)
rc = list_entry(i->node.next, struct ipx_interface, node);
return rc;
}
static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos)
{
loff_t l = *pos;
spin_lock_bh(&ipx_interfaces_lock);
return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN;
}
static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct ipx_interface *i;
++*pos;
if (v == SEQ_START_TOKEN)
i = ipx_interfaces_head();
else
i = ipx_interfaces_next(v);
return i;
}
static void ipx_seq_interface_stop(struct seq_file *seq, void *v)
{
spin_unlock_bh(&ipx_interfaces_lock);
}
static int ipx_seq_interface_show(struct seq_file *seq, void *v)
{
struct ipx_interface *i;
if (v == SEQ_START_TOKEN) {
seq_puts(seq, "Network Node_Address Primary Device "
"Frame_Type");
#ifdef IPX_REFCNT_DEBUG
seq_puts(seq, " refcnt");
#endif
seq_puts(seq, "\n");
goto out;
}
i = v;
seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum));
seq_printf(seq, "%02X%02X%02X%02X%02X%02X ",
i->if_node[0], i->if_node[1], i->if_node[2],
i->if_node[3], i->if_node[4], i->if_node[5]);
seq_printf(seq, "%-9s", i == ipx_primary_net ? "Yes" : "No");
seq_printf(seq, "%-11s", ipx_device_name(i));
seq_printf(seq, "%-9s", ipx_frame_name(i->if_dlink_type));
#ifdef IPX_REFCNT_DEBUG
seq_printf(seq, "%6d", atomic_read(&i->refcnt));
#endif
seq_puts(seq, "\n");
out:
return 0;
}
static struct ipx_route *ipx_routes_head(void)
{
struct ipx_route *rc = NULL;
if (!list_empty(&ipx_routes))
rc = list_entry(ipx_routes.next, struct ipx_route, node);
return rc;
}
static struct ipx_route *ipx_routes_next(struct ipx_route *r)
{
struct ipx_route *rc = NULL;
if (r->node.next != &ipx_routes)
rc = list_entry(r->node.next, struct ipx_route, node);
return rc;
}
static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos)
{
struct ipx_route *r;
list_for_each_entry(r, &ipx_routes, node)
if (!pos--)
goto out;
r = NULL;
out:
return r;
}
static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos)
{
loff_t l = *pos;
read_lock_bh(&ipx_routes_lock);
return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN;
}
static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct ipx_route *r;
++*pos;
if (v == SEQ_START_TOKEN)
r = ipx_routes_head();
else
r = ipx_routes_next(v);
return r;
}
static void ipx_seq_route_stop(struct seq_file *seq, void *v)
{
read_unlock_bh(&ipx_routes_lock);
}
static int ipx_seq_route_show(struct seq_file *seq, void *v)
{
struct ipx_route *rt;
if (v == SEQ_START_TOKEN) {
seq_puts(seq, "Network Router_Net Router_Node\n");
goto out;
}
rt = v;
seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net));
if (rt->ir_routed)
seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n",
(long unsigned int)ntohl(rt->ir_intrfc->if_netnum),
rt->ir_router_node[0], rt->ir_router_node[1],
rt->ir_router_node[2], rt->ir_router_node[3],
rt->ir_router_node[4], rt->ir_router_node[5]);
else
seq_puts(seq, "Directly Connected\n");
out:
return 0;
}
static __inline__ struct sock *ipx_get_socket_idx(loff_t pos)
{
struct sock *s = NULL;
struct hlist_node *node;
struct ipx_interface *i;
list_for_each_entry(i, &ipx_interfaces, node) {
spin_lock_bh(&i->if_sklist_lock);
sk_for_each(s, node, &i->if_sklist) {
if (!pos)
break;
--pos;
}
spin_unlock_bh(&i->if_sklist_lock);
if (!pos) {
if (node)
goto found;
break;
}
}
s = NULL;
found:
return s;
}
static void *ipx_seq_socket_start(struct seq_file *seq, loff_t *pos)
{
loff_t l = *pos;
spin_lock_bh(&ipx_interfaces_lock);
return l ? ipx_get_socket_idx(--l) : SEQ_START_TOKEN;
}
static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct sock* sk, *next;
struct ipx_interface *i;
struct ipx_sock *ipxs;
++*pos;
if (v == SEQ_START_TOKEN) {
sk = NULL;
i = ipx_interfaces_head();
if (!i)
goto out;
sk = sk_head(&i->if_sklist);
if (sk)
spin_lock_bh(&i->if_sklist_lock);
goto out;
}
sk = v;
next = sk_next(sk);
if (next) {
sk = next;
goto out;
}
ipxs = ipx_sk(sk);
i = ipxs->intrfc;
spin_unlock_bh(&i->if_sklist_lock);
sk = NULL;
for (;;) {
i = ipx_interfaces_next(i);
if (!i)
break;
spin_lock_bh(&i->if_sklist_lock);
if (!hlist_empty(&i->if_sklist)) {
sk = sk_head(&i->if_sklist);
break;
}
spin_unlock_bh(&i->if_sklist_lock);
}
out:
return sk;
}
static int ipx_seq_socket_show(struct seq_file *seq, void *v)
{
struct sock *s;
struct ipx_sock *ipxs;
if (v == SEQ_START_TOKEN) {
#ifdef CONFIG_IPX_INTERN
seq_puts(seq, "Local_Address "
"Remote_Address Tx_Queue "
"Rx_Queue State Uid\n");
#else
seq_puts(seq, "Local_Address Remote_Address "
"Tx_Queue Rx_Queue State Uid\n");
#endif
goto out;
}
s = v;
ipxs = ipx_sk(s);
#ifdef CONFIG_IPX_INTERN
seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ",
(unsigned long)ntohl(ipxs->intrfc->if_netnum),
ipxs->node[0], ipxs->node[1], ipxs->node[2], ipxs->node[3],
ipxs->node[4], ipxs->node[5], ntohs(ipxs->port));
#else
seq_printf(seq, "%08lX:%04X ", (unsigned long) ntohl(ipxs->intrfc->if_netnum),
ntohs(ipxs->port));
#endif /* CONFIG_IPX_INTERN */
if (s->sk_state != TCP_ESTABLISHED)
seq_printf(seq, "%-28s", "Not_Connected");
else {
seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ",
(unsigned long)ntohl(ipxs->dest_addr.net),
ipxs->dest_addr.node[0], ipxs->dest_addr.node[1],
ipxs->dest_addr.node[2], ipxs->dest_addr.node[3],
ipxs->dest_addr.node[4], ipxs->dest_addr.node[5],
ntohs(ipxs->dest_addr.sock));
}
seq_printf(seq, "%08X %08X %02X %03d\n",
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
out:
return 0;
}
static const struct seq_operations ipx_seq_interface_ops = {
.start = ipx_seq_interface_start,
.next = ipx_seq_interface_next,
.stop = ipx_seq_interface_stop,
.show = ipx_seq_interface_show,
};
static const struct seq_operations ipx_seq_route_ops = {
.start = ipx_seq_route_start,
.next = ipx_seq_route_next,
.stop = ipx_seq_route_stop,
.show = ipx_seq_route_show,
};
static const struct seq_operations ipx_seq_socket_ops = {
.start = ipx_seq_socket_start,
.next = ipx_seq_socket_next,
.stop = ipx_seq_interface_stop,
.show = ipx_seq_socket_show,
};
static int ipx_seq_route_open(struct inode *inode, struct file *file)
{
return seq_open(file, &ipx_seq_route_ops);
}
static int ipx_seq_interface_open(struct inode *inode, struct file *file)
{
return seq_open(file, &ipx_seq_interface_ops);
}
static int ipx_seq_socket_open(struct inode *inode, struct file *file)
{
return seq_open(file, &ipx_seq_socket_ops);
}
static const struct file_operations ipx_seq_interface_fops = {
.owner = THIS_MODULE,
.open = ipx_seq_interface_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static const struct file_operations ipx_seq_route_fops = {
.owner = THIS_MODULE,
.open = ipx_seq_route_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static const struct file_operations ipx_seq_socket_fops = {
.owner = THIS_MODULE,
.open = ipx_seq_socket_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static struct proc_dir_entry *ipx_proc_dir;
int __init ipx_proc_init(void)
{
struct proc_dir_entry *p;
int rc = -ENOMEM;
ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
if (!ipx_proc_dir)
goto out;
p = create_proc_entry("interface", S_IRUGO, ipx_proc_dir);
if (!p)
goto out_interface;
p->proc_fops = &ipx_seq_interface_fops;
p = create_proc_entry("route", S_IRUGO, ipx_proc_dir);
if (!p)
goto out_route;
p->proc_fops = &ipx_seq_route_fops;
p = create_proc_entry("socket", S_IRUGO, ipx_proc_dir);
if (!p)
goto out_socket;
p->proc_fops = &ipx_seq_socket_fops;
rc = 0;
out:
return rc;
out_socket:
remove_proc_entry("route", ipx_proc_dir);
out_route:
remove_proc_entry("interface", ipx_proc_dir);
out_interface:
remove_proc_entry("ipx", init_net.proc_net);
goto out;
}
void __exit ipx_proc_exit(void)
{
remove_proc_entry("interface", ipx_proc_dir);
remove_proc_entry("route", ipx_proc_dir);
remove_proc_entry("socket", ipx_proc_dir);
remove_proc_entry("ipx", init_net.proc_net);
}
#else /* CONFIG_PROC_FS */
int __init ipx_proc_init(void)
{
return 0;
}
void __exit ipx_proc_exit(void)
{
}
#endif /* CONFIG_PROC_FS */
