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Based on 1 normalized pattern(s): this module is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 18 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.008906948@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
208 lines
4.8 KiB
C
208 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* X.25 Packet Layer release 002
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*
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* This is ALPHA test software. This code may break your machine,
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* randomly fail to work with new releases, misbehave and/or generally
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* screw up. It might even work.
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*
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* This code REQUIRES 2.4 with seq_file support
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*
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* History
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* 2002/10/06 Arnaldo Carvalho de Melo seq_file support
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*/
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/export.h>
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#include <net/net_namespace.h>
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#include <net/sock.h>
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#include <net/x25.h>
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#ifdef CONFIG_PROC_FS
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static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
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__acquires(x25_route_list_lock)
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{
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read_lock_bh(&x25_route_list_lock);
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return seq_list_start_head(&x25_route_list, *pos);
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}
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static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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return seq_list_next(v, &x25_route_list, pos);
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}
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static void x25_seq_route_stop(struct seq_file *seq, void *v)
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__releases(x25_route_list_lock)
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{
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read_unlock_bh(&x25_route_list_lock);
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}
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static int x25_seq_route_show(struct seq_file *seq, void *v)
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{
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struct x25_route *rt = list_entry(v, struct x25_route, node);
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if (v == &x25_route_list) {
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seq_puts(seq, "Address Digits Device\n");
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goto out;
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}
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rt = v;
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seq_printf(seq, "%-15s %-6d %-5s\n",
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rt->address.x25_addr, rt->sigdigits,
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rt->dev ? rt->dev->name : "???");
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out:
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return 0;
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}
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static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
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__acquires(x25_list_lock)
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{
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read_lock_bh(&x25_list_lock);
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return seq_hlist_start_head(&x25_list, *pos);
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}
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static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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return seq_hlist_next(v, &x25_list, pos);
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}
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static void x25_seq_socket_stop(struct seq_file *seq, void *v)
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__releases(x25_list_lock)
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{
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read_unlock_bh(&x25_list_lock);
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}
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static int x25_seq_socket_show(struct seq_file *seq, void *v)
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{
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struct sock *s;
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struct x25_sock *x25;
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struct net_device *dev;
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const char *devname;
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if (v == SEQ_START_TOKEN) {
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seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
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"va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
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goto out;
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}
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s = sk_entry(v);
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x25 = x25_sk(s);
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if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
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devname = "???";
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else
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devname = x25->neighbour->dev->name;
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seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
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"%3lu %3lu %3lu %5d %5d %ld\n",
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!x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
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!x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
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devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
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x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
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x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
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sk_wmem_alloc_get(s),
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sk_rmem_alloc_get(s),
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s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
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out:
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return 0;
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}
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static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
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__acquires(x25_forward_list_lock)
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{
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read_lock_bh(&x25_forward_list_lock);
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return seq_list_start_head(&x25_forward_list, *pos);
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}
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static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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return seq_list_next(v, &x25_forward_list, pos);
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}
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static void x25_seq_forward_stop(struct seq_file *seq, void *v)
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__releases(x25_forward_list_lock)
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{
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read_unlock_bh(&x25_forward_list_lock);
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}
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static int x25_seq_forward_show(struct seq_file *seq, void *v)
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{
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struct x25_forward *f = list_entry(v, struct x25_forward, node);
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if (v == &x25_forward_list) {
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seq_printf(seq, "lci dev1 dev2\n");
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goto out;
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}
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f = v;
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seq_printf(seq, "%d %-10s %-10s\n",
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f->lci, f->dev1->name, f->dev2->name);
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out:
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return 0;
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}
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static const struct seq_operations x25_seq_route_ops = {
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.start = x25_seq_route_start,
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.next = x25_seq_route_next,
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.stop = x25_seq_route_stop,
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.show = x25_seq_route_show,
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};
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static const struct seq_operations x25_seq_socket_ops = {
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.start = x25_seq_socket_start,
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.next = x25_seq_socket_next,
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.stop = x25_seq_socket_stop,
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.show = x25_seq_socket_show,
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};
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static const struct seq_operations x25_seq_forward_ops = {
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.start = x25_seq_forward_start,
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.next = x25_seq_forward_next,
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.stop = x25_seq_forward_stop,
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.show = x25_seq_forward_show,
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};
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int __init x25_proc_init(void)
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{
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if (!proc_mkdir("x25", init_net.proc_net))
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return -ENOMEM;
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if (!proc_create_seq("x25/route", 0444, init_net.proc_net,
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&x25_seq_route_ops))
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goto out;
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if (!proc_create_seq("x25/socket", 0444, init_net.proc_net,
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&x25_seq_socket_ops))
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goto out;
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if (!proc_create_seq("x25/forward", 0444, init_net.proc_net,
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&x25_seq_forward_ops))
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goto out;
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return 0;
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out:
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remove_proc_subtree("x25", init_net.proc_net);
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return -ENOMEM;
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}
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void __exit x25_proc_exit(void)
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{
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remove_proc_subtree("x25", init_net.proc_net);
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}
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#else /* CONFIG_PROC_FS */
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int __init x25_proc_init(void)
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{
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return 0;
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}
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void __exit x25_proc_exit(void)
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{
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}
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#endif /* CONFIG_PROC_FS */
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