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207 lines
4.8 KiB
207 lines
4.8 KiB
// 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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