diff options
Diffstat (limited to '')
| -rw-r--r-- | net/x25/x25_proc.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c new file mode 100644 index 000000000..0412814a2 --- /dev/null +++ b/net/x25/x25_proc.c @@ -0,0 +1,206 @@ +// 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; + 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 || !x25->neighbour->dev) + 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 */ |