^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * X.25 Packet Layer release 002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * This is ALPHA test software. This code may break your machine,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * randomly fail to work with new releases, misbehave and/or generally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * screw up. It might even work.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This code REQUIRES 2.4 with seq_file support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * History
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * 2002/10/06 Arnaldo Carvalho de Melo seq_file support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <net/sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <net/x25.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #ifdef CONFIG_PROC_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) __acquires(x25_route_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) read_lock_bh(&x25_route_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) return seq_list_start_head(&x25_route_list, *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return seq_list_next(v, &x25_route_list, pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static void x25_seq_route_stop(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) __releases(x25_route_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) read_unlock_bh(&x25_route_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static int x25_seq_route_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct x25_route *rt = list_entry(v, struct x25_route, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (v == &x25_route_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) seq_puts(seq, "Address Digits Device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) rt = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) seq_printf(seq, "%-15s %-6d %-5s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) rt->address.x25_addr, rt->sigdigits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) rt->dev ? rt->dev->name : "???");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) __acquires(x25_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) read_lock_bh(&x25_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return seq_hlist_start_head(&x25_list, *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return seq_hlist_next(v, &x25_list, pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static void x25_seq_socket_stop(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) __releases(x25_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) read_unlock_bh(&x25_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int x25_seq_socket_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct sock *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct x25_sock *x25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) const char *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (v == SEQ_START_TOKEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) s = sk_entry(v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) x25 = x25_sk(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) devname = "???";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) devname = x25->neighbour->dev->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) "%3lu %3lu %3lu %5d %5d %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) sk_wmem_alloc_get(s),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) sk_rmem_alloc_get(s),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) __acquires(x25_forward_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) read_lock_bh(&x25_forward_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return seq_list_start_head(&x25_forward_list, *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return seq_list_next(v, &x25_forward_list, pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static void x25_seq_forward_stop(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) __releases(x25_forward_list_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) read_unlock_bh(&x25_forward_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int x25_seq_forward_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct x25_forward *f = list_entry(v, struct x25_forward, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (v == &x25_forward_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) seq_printf(seq, "lci dev1 dev2\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) f = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) seq_printf(seq, "%d %-10s %-10s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) f->lci, f->dev1->name, f->dev2->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static const struct seq_operations x25_seq_route_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .start = x25_seq_route_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .next = x25_seq_route_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .stop = x25_seq_route_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .show = x25_seq_route_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static const struct seq_operations x25_seq_socket_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .start = x25_seq_socket_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .next = x25_seq_socket_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .stop = x25_seq_socket_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .show = x25_seq_socket_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static const struct seq_operations x25_seq_forward_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .start = x25_seq_forward_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .next = x25_seq_forward_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .stop = x25_seq_forward_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .show = x25_seq_forward_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) int __init x25_proc_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (!proc_mkdir("x25", init_net.proc_net))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (!proc_create_seq("x25/route", 0444, init_net.proc_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) &x25_seq_route_ops))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (!proc_create_seq("x25/socket", 0444, init_net.proc_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) &x25_seq_socket_ops))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (!proc_create_seq("x25/forward", 0444, init_net.proc_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) &x25_seq_forward_ops))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) remove_proc_subtree("x25", init_net.proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) void __exit x25_proc_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) remove_proc_subtree("x25", init_net.proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) #else /* CONFIG_PROC_FS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) int __init x25_proc_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) void __exit x25_proc_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) #endif /* CONFIG_PROC_FS */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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