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-rw-r--r--net/x25/x25_proc.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c
new file mode 100644
index 000000000..3bddcbdf2
--- /dev/null
+++ b/net/x25/x25_proc.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * X.25 Packet Layer release 002
+ *
+ * This is ALPHA test software. This code may break your machine,
+ * randomly fail to work with new releases, misbehave and/or generally
+ * screw up. It might even work.
+ *
+ * This code REQUIRES 2.4 with seq_file support
+ *
+ * History
+ * 2002/10/06 Arnaldo Carvalho de Melo seq_file support
+ */
+
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/export.h>
+#include <net/net_namespace.h>
+#include <net/sock.h>
+#include <net/x25.h>
+
+#ifdef CONFIG_PROC_FS
+
+static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
+ __acquires(x25_route_list_lock)
+{
+ read_lock_bh(&x25_route_list_lock);
+ return seq_list_start_head(&x25_route_list, *pos);
+}
+
+static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ return seq_list_next(v, &x25_route_list, pos);
+}
+
+static void x25_seq_route_stop(struct seq_file *seq, void *v)
+ __releases(x25_route_list_lock)
+{
+ read_unlock_bh(&x25_route_list_lock);
+}
+
+static int x25_seq_route_show(struct seq_file *seq, void *v)
+{
+ struct x25_route *rt = list_entry(v, struct x25_route, node);
+
+ if (v == &x25_route_list) {
+ seq_puts(seq, "Address Digits Device\n");
+ goto out;
+ }
+
+ rt = v;
+ seq_printf(seq, "%-15s %-6d %-5s\n",
+ rt->address.x25_addr, rt->sigdigits,
+ rt->dev ? rt->dev->name : "???");
+out:
+ return 0;
+}
+
+static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
+ __acquires(x25_list_lock)
+{
+ read_lock_bh(&x25_list_lock);
+ return seq_hlist_start_head(&x25_list, *pos);
+}
+
+static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ return seq_hlist_next(v, &x25_list, pos);
+}
+
+static void x25_seq_socket_stop(struct seq_file *seq, void *v)
+ __releases(x25_list_lock)
+{
+ read_unlock_bh(&x25_list_lock);
+}
+
+static int x25_seq_socket_show(struct seq_file *seq, void *v)
+{
+ struct sock *s;
+ struct x25_sock *x25;
+ struct net_device *dev;
+ const char *devname;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
+ "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
+ goto out;
+ }
+
+ s = sk_entry(v);
+ x25 = x25_sk(s);
+
+ if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
+ devname = "???";
+ else
+ devname = x25->neighbour->dev->name;
+
+ seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
+ "%3lu %3lu %3lu %5d %5d %ld\n",
+ !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
+ !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
+ devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
+ x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
+ x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
+ sk_wmem_alloc_get(s),
+ sk_rmem_alloc_get(s),
+ s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
+out:
+ return 0;
+}
+
+static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
+ __acquires(x25_forward_list_lock)
+{
+ read_lock_bh(&x25_forward_list_lock);
+ return seq_list_start_head(&x25_forward_list, *pos);
+}
+
+static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ return seq_list_next(v, &x25_forward_list, pos);
+}
+
+static void x25_seq_forward_stop(struct seq_file *seq, void *v)
+ __releases(x25_forward_list_lock)
+{
+ read_unlock_bh(&x25_forward_list_lock);
+}
+
+static int x25_seq_forward_show(struct seq_file *seq, void *v)
+{
+ struct x25_forward *f = list_entry(v, struct x25_forward, node);
+
+ if (v == &x25_forward_list) {
+ seq_printf(seq, "lci dev1 dev2\n");
+ goto out;
+ }
+
+ f = v;
+
+ seq_printf(seq, "%d %-10s %-10s\n",
+ f->lci, f->dev1->name, f->dev2->name);
+out:
+ return 0;
+}
+
+static const struct seq_operations x25_seq_route_ops = {
+ .start = x25_seq_route_start,
+ .next = x25_seq_route_next,
+ .stop = x25_seq_route_stop,
+ .show = x25_seq_route_show,
+};
+
+static const struct seq_operations x25_seq_socket_ops = {
+ .start = x25_seq_socket_start,
+ .next = x25_seq_socket_next,
+ .stop = x25_seq_socket_stop,
+ .show = x25_seq_socket_show,
+};
+
+static const struct seq_operations x25_seq_forward_ops = {
+ .start = x25_seq_forward_start,
+ .next = x25_seq_forward_next,
+ .stop = x25_seq_forward_stop,
+ .show = x25_seq_forward_show,
+};
+
+int __init x25_proc_init(void)
+{
+ if (!proc_mkdir("x25", init_net.proc_net))
+ return -ENOMEM;
+
+ if (!proc_create_seq("x25/route", 0444, init_net.proc_net,
+ &x25_seq_route_ops))
+ goto out;
+
+ if (!proc_create_seq("x25/socket", 0444, init_net.proc_net,
+ &x25_seq_socket_ops))
+ goto out;
+
+ if (!proc_create_seq("x25/forward", 0444, init_net.proc_net,
+ &x25_seq_forward_ops))
+ goto out;
+ return 0;
+
+out:
+ remove_proc_subtree("x25", init_net.proc_net);
+ return -ENOMEM;
+}
+
+void __exit x25_proc_exit(void)
+{
+ remove_proc_subtree("x25", init_net.proc_net);
+}
+
+#else /* CONFIG_PROC_FS */
+
+int __init x25_proc_init(void)
+{
+ return 0;
+}
+
+void __exit x25_proc_exit(void)
+{
+}
+#endif /* CONFIG_PROC_FS */