1 // SPDX-License-Identifier: GPL-2.0-or-later
37 	struct afs_cell *cell;  in afs_proc_cells_show()  local
45 	cell = list_entry(v, struct afs_cell, proc_link);  in afs_proc_cells_show()
46 	vllist = rcu_dereference(cell->vl_servers);  in afs_proc_cells_show()
48 	/* display one cell per line on subsequent lines */  in afs_proc_cells_show()
49 	seq_printf(m, "%3u %3u %6lld %2u %2u %s\n",  in afs_proc_cells_show()
50 		   refcount_read(&cell->ref),  in afs_proc_cells_show()
51 		   atomic_read(&cell->active),  in afs_proc_cells_show()
52 		   cell->dns_expiry - ktime_get_real_seconds(),  in afs_proc_cells_show()
53 		   vllist ? vllist->nr_servers : 0,  in afs_proc_cells_show()
54 		   cell->state,  in afs_proc_cells_show()
55 		   cell->name);  in afs_proc_cells_show()
63 	return seq_hlist_start_head_rcu(&afs_seq2net(m)->proc_cells, *_pos);  in afs_proc_cells_start()
68 	return seq_hlist_next_rcu(v, &afs_seq2net(m)->proc_cells, pos);  in afs_proc_cells_next()
86  * - to add cells: echo "add <cellname> <IP>[:<IP>][:<IP>]"
90 	struct seq_file *m = file->private_data;  in afs_proc_cells_write()
123 		struct afs_cell *cell;  in afs_proc_cells_write()  local
125 		cell = afs_lookup_cell(net, name, strlen(name), args, true);  in afs_proc_cells_write()
126 		if (IS_ERR(cell)) {  in afs_proc_cells_write()
127 			ret = PTR_ERR(cell);  in afs_proc_cells_write()
131 		if (test_and_set_bit(AFS_CELL_FL_NO_GC, &cell->flags))  in afs_proc_cells_write()
132 			afs_unuse_cell(net, cell, afs_cell_trace_unuse_no_pin);  in afs_proc_cells_write()
144 	ret = -EINVAL;  in afs_proc_cells_write()
165 	preflist = rcu_dereference(net->address_prefs);  in afs_proc_addr_prefs_show()
173 		   preflist->version, preflist->ipv6_off, preflist->nr, preflist->max_prefs);  in afs_proc_addr_prefs_show()
177 	for (i = 0; i < preflist->nr; i++) {  in afs_proc_addr_prefs_show()
178 		pref = &preflist->prefs[i];  in afs_proc_addr_prefs_show()
180 		addr.sin.sin_family = pref->family;  in afs_proc_addr_prefs_show()
181 		if (pref->family == AF_INET) {  in afs_proc_addr_prefs_show()
182 			memcpy(&addr.sin.sin_addr, &pref->ipv4_addr,  in afs_proc_addr_prefs_show()
184 			snprintf(buf, sizeof(buf), "%pISc/%u", &addr.sin, pref->subnet_mask);  in afs_proc_addr_prefs_show()
185 			seq_printf(m, "UDP  %-43.43s %5u\n", buf, pref->prio);  in afs_proc_addr_prefs_show()
187 			memcpy(&addr.sin6.sin6_addr, &pref->ipv6_addr,  in afs_proc_addr_prefs_show()
189 			snprintf(buf, sizeof(buf), "%pISc/%u", &addr.sin6, pref->subnet_mask);  in afs_proc_addr_prefs_show()
190 			seq_printf(m, "UDP  %-43.43s %5u\n", buf, pref->prio);  in afs_proc_addr_prefs_show()
200  * Display the name of the current workstation cell.
204 	struct afs_cell *cell;  in afs_proc_rootcell_show()  local
208 	down_read(&net->cells_lock);  in afs_proc_rootcell_show()
209 	cell = net->ws_cell;  in afs_proc_rootcell_show()
210 	if (cell)  in afs_proc_rootcell_show()
211 		seq_printf(m, "%s\n", cell->name);  in afs_proc_rootcell_show()
212 	up_read(&net->cells_lock);  in afs_proc_rootcell_show()
217  * Set the current workstation cell and optionally supply its list of volume
220  *	echo "cell.name:192.168.231.14" >/proc/fs/afs/rootcell
224 	struct seq_file *m = file->private_data;  in afs_proc_rootcell_write()
229 	ret = -EINVAL;  in afs_proc_rootcell_write()
257  * Display the list of volumes known to a cell.
270 		   refcount_read(&vol->ref), vol->vid,  in afs_proc_cell_volumes_show()
271 		   afs_vol_types[vol->type],  in afs_proc_cell_volumes_show()
272 		   vol->name);  in afs_proc_cell_volumes_show()
278 	__acquires(cell->proc_lock)  in afs_proc_cell_volumes_start()
280 	struct afs_cell *cell = pde_data(file_inode(m->file));  in afs_proc_cell_volumes_start()  local
283 	return seq_hlist_start_head_rcu(&cell->proc_volumes, *_pos);  in afs_proc_cell_volumes_start()
289 	struct afs_cell *cell = pde_data(file_inode(m->file));  in afs_proc_cell_volumes_next()  local
291 	return seq_hlist_next_rcu(v, &cell->proc_volumes, _pos);  in afs_proc_cell_volumes_next()
295 	__releases(cell->proc_lock)  in afs_proc_cell_volumes_stop()
318 	[DNS_LOOKUP_NOT_DONE]		= "no-lookup",
322 	[DNS_LOOKUP_GOT_NOT_FOUND]	= "not-found",
323 	[DNS_LOOKUP_GOT_LOCAL_FAILURE]	= "local-failure",
324 	[DNS_LOOKUP_GOT_TEMP_FAILURE]	= "temp-failure",
325 	[DNS_LOOKUP_GOT_NS_FAILURE]	= "ns-failure",
330  * Display the list of Volume Location servers we're using for a cell.
334 	const struct afs_vl_seq_net_private *priv = m->private;  in afs_proc_cell_vlservers_show()
335 	const struct afs_vlserver_list *vllist = priv->vllist;  in afs_proc_cell_vlservers_show()
343 			   dns_record_sources[vllist ? vllist->source : 0],  in afs_proc_cell_vlservers_show()
344 			   dns_lookup_statuses[vllist ? vllist->status : 0]);  in afs_proc_cell_vlservers_show()
349 	vlserver = entry->server;  in afs_proc_cell_vlservers_show()
350 	alist = rcu_dereference(vlserver->addresses);  in afs_proc_cell_vlservers_show()
353 		   vlserver->name, entry->priority, entry->weight,  in afs_proc_cell_vlservers_show()
354 		   dns_record_sources[alist ? alist->source : entry->source],  in afs_proc_cell_vlservers_show()
355 		   dns_lookup_statuses[alist ? alist->status : entry->status]);  in afs_proc_cell_vlservers_show()
357 		for (i = 0; i < alist->nr_addrs; i++)  in afs_proc_cell_vlservers_show()
359 				   alist->preferred == i ? '>' : '-',  in afs_proc_cell_vlservers_show()
360 				   rxrpc_kernel_remote_addr(alist->addrs[i].peer));  in afs_proc_cell_vlservers_show()
362 	seq_printf(m, " info: fl=%lx rtt=%d\n", vlserver->flags, vlserver->rtt);  in afs_proc_cell_vlservers_show()
364 		   vlserver->probe.flags, vlserver->probe.error,  in afs_proc_cell_vlservers_show()
365 		   vlserver->probe.abort_code,  in afs_proc_cell_vlservers_show()
366 		   atomic_read(&vlserver->probe_outstanding));  in afs_proc_cell_vlservers_show()
373 	struct afs_vl_seq_net_private *priv = m->private;  in afs_proc_cell_vlservers_start()
375 	struct afs_cell *cell = pde_data(file_inode(m->file));  in afs_proc_cell_vlservers_start()  local
380 	vllist = rcu_dereference(cell->vl_servers);  in afs_proc_cell_vlservers_start()
381 	priv->vllist = vllist;  in afs_proc_cell_vlservers_start()
388 	if (pos - 1 >= vllist->nr_servers)  in afs_proc_cell_vlservers_start()
391 	return &vllist->servers[pos - 1];  in afs_proc_cell_vlservers_start()
397 	struct afs_vl_seq_net_private *priv = m->private;  in afs_proc_cell_vlservers_next()
398 	struct afs_vlserver_list *vllist = priv->vllist;  in afs_proc_cell_vlservers_next()
404 	if (!vllist || pos - 1 >= vllist->nr_servers)  in afs_proc_cell_vlservers_next()
407 	return &vllist->servers[pos - 1];  in afs_proc_cell_vlservers_next()
435 		seq_puts(m, "UUID                                 REF ACT CELL\n");  in afs_proc_servers_show()
440 	estate = rcu_dereference(server->endpoint_state);  in afs_proc_servers_show()
441 	alist = estate->addresses;  in afs_proc_servers_show()
443 		   &server->uuid,  in afs_proc_servers_show()
444 		   refcount_read(&server->ref),  in afs_proc_servers_show()
445 		   atomic_read(&server->active),  in afs_proc_servers_show()
446 		   server->cell->name);  in afs_proc_servers_show()
447 	seq_printf(m, "  - info: fl=%lx rtt=%u\n",  in afs_proc_servers_show()
448 		   server->flags, server->rtt);  in afs_proc_servers_show()
449 	seq_printf(m, "  - probe: last=%d\n",  in afs_proc_servers_show()
450 		   (int)(jiffies - server->probed_at) / HZ);  in afs_proc_servers_show()
451 	failed = estate->failed_set;  in afs_proc_servers_show()
452 	seq_printf(m, "  - ESTATE pq=%x np=%u rsp=%lx f=%lx\n",  in afs_proc_servers_show()
453 		   estate->probe_seq, atomic_read(&estate->nr_probing),  in afs_proc_servers_show()
454 		   estate->responsive_set, estate->failed_set);  in afs_proc_servers_show()
455 	seq_printf(m, "  - ALIST v=%u ap=%u\n",  in afs_proc_servers_show()
456 		   alist->version, alist->addr_pref_version);  in afs_proc_servers_show()
457 	for (i = 0; i < alist->nr_addrs; i++) {  in afs_proc_servers_show()
458 		const struct afs_address *addr = &alist->addrs[i];  in afs_proc_servers_show()
461 			   i, rxrpc_kernel_remote_addr(addr->peer),  in afs_proc_servers_show()
462 			   alist->preferred == i ? "*" :  in afs_proc_servers_show()
464 			   rxrpc_kernel_get_srtt(addr->peer),  in afs_proc_servers_show()
465 			   addr->last_error, addr->prio);  in afs_proc_servers_show()
474 	return seq_hlist_start_head_rcu(&afs_seq2net(m)->fs_proc, *_pos);  in afs_proc_servers_start()
479 	return seq_hlist_next_rcu(v, &afs_seq2net(m)->fs_proc, _pos);  in afs_proc_servers_next()
502 	struct afs_sysnames *sysnames = net->sysnames;  in afs_proc_sysname_show()
503 	unsigned int i = (unsigned long)v - 1;  in afs_proc_sysname_show()
505 	if (i < sysnames->nr)  in afs_proc_sysname_show()
506 		seq_printf(m, "%s\n", sysnames->subs[i]);  in afs_proc_sysname_show()
511 	__acquires(&net->sysnames_lock)  in afs_proc_sysname_start()
516 	read_lock(&net->sysnames_lock);  in afs_proc_sysname_start()
518 	names = net->sysnames;  in afs_proc_sysname_start()
519 	if (*pos >= names->nr)  in afs_proc_sysname_start()
527 	struct afs_sysnames *names = net->sysnames;  in afs_proc_sysname_next()
530 	if (*pos >= names->nr)  in afs_proc_sysname_next()
536 	__releases(&net->sysnames_lock)  in afs_proc_sysname_stop()
540 	read_unlock(&net->sysnames_lock);  in afs_proc_sysname_stop()
556 	struct seq_file *m = file->private_data;  in afs_proc_sysname_write()
563 		return -ENOMEM;  in afs_proc_sysname_write()
564 	refcount_set(&sysnames->usage, 1);  in afs_proc_sysname_write()
572 		ret = -ENAMETOOLONG;  in afs_proc_sysname_write()
577 		    s[len - 4] == '@' &&  in afs_proc_sysname_write()
578 		    s[len - 3] == 's' &&  in afs_proc_sysname_write()
579 		    s[len - 2] == 'y' &&  in afs_proc_sysname_write()
580 		    s[len - 1] == 's')  in afs_proc_sysname_write()
585 		    (len < 2 || (len == 2 && s[1] == '.')))  in afs_proc_sysname_write()
591 		ret = -EFBIG;  in afs_proc_sysname_write()
592 		if (sysnames->nr >= AFS_NR_SYSNAME)  in afs_proc_sysname_write()
598 			ret = -ENOMEM;  in afs_proc_sysname_write()
604 		sysnames->subs[sysnames->nr] = sub;  in afs_proc_sysname_write()
605 		sysnames->nr++;  in afs_proc_sysname_write()
608 	if (sysnames->nr == 0) {  in afs_proc_sysname_write()
609 		sysnames->subs[0] = sysnames->blank;  in afs_proc_sysname_write()
610 		sysnames->nr++;  in afs_proc_sysname_write()
613 	write_lock(&net->sysnames_lock);  in afs_proc_sysname_write()
614 	kill = net->sysnames;  in afs_proc_sysname_write()
615 	net->sysnames = sysnames;  in afs_proc_sysname_write()
616 	write_unlock(&net->sysnames_lock);  in afs_proc_sysname_write()
623 	ret = -EINVAL;  in afs_proc_sysname_write()
632 	if (sysnames && refcount_dec_and_test(&sysnames->usage)) {  in afs_put_sysnames()
633 		for (i = 0; i < sysnames->nr; i++)  in afs_put_sysnames()
634 			if (sysnames->subs[i] != afs_init_sysname &&  in afs_put_sysnames()
635 			    sysnames->subs[i] != sysnames->blank)  in afs_put_sysnames()
636 				kfree(sysnames->subs[i]);  in afs_put_sysnames()
642  * Display general per-net namespace statistics
650 	seq_printf(m, "dir-mgmt: look=%u reval=%u inval=%u relpg=%u\n",  in afs_proc_stats_show()
651 		   atomic_read(&net->n_lookup),  in afs_proc_stats_show()
652 		   atomic_read(&net->n_reval),  in afs_proc_stats_show()
653 		   atomic_read(&net->n_inval),  in afs_proc_stats_show()
654 		   atomic_read(&net->n_relpg));  in afs_proc_stats_show()
656 	seq_printf(m, "dir-data: rdpg=%u\n",  in afs_proc_stats_show()
657 		   atomic_read(&net->n_read_dir));  in afs_proc_stats_show()
659 	seq_printf(m, "dir-edit: cr=%u rm=%u\n",  in afs_proc_stats_show()
660 		   atomic_read(&net->n_dir_cr),  in afs_proc_stats_show()
661 		   atomic_read(&net->n_dir_rm));  in afs_proc_stats_show()
663 	seq_printf(m, "file-rd : n=%u nb=%lu\n",  in afs_proc_stats_show()
664 		   atomic_read(&net->n_fetches),  in afs_proc_stats_show()
665 		   atomic_long_read(&net->n_fetch_bytes));  in afs_proc_stats_show()
666 	seq_printf(m, "file-wr : n=%u nb=%lu\n",  in afs_proc_stats_show()
667 		   atomic_read(&net->n_stores),  in afs_proc_stats_show()
668 		   atomic_long_read(&net->n_store_bytes));  in afs_proc_stats_show()
673  * initialise /proc/fs/afs/<cell>/
675 int afs_proc_cell_setup(struct afs_cell *cell)  in afs_proc_cell_setup()  argument
678 	struct afs_net *net = cell->net;  in afs_proc_cell_setup()
680 	_enter("%p{%s},%p", cell, cell->name, net->proc_afs);  in afs_proc_cell_setup()
682 	dir = proc_net_mkdir(net->net, cell->name, net->proc_afs);  in afs_proc_cell_setup()
689 				  cell) ||  in afs_proc_cell_setup()
693 				  cell))  in afs_proc_cell_setup()
700 	remove_proc_subtree(cell->name, net->proc_afs);  in afs_proc_cell_setup()
702 	_leave(" = -ENOMEM");  in afs_proc_cell_setup()
703 	return -ENOMEM;  in afs_proc_cell_setup()
707  * remove /proc/fs/afs/<cell>/
709 void afs_proc_cell_remove(struct afs_cell *cell)  in afs_proc_cell_remove()  argument
711 	struct afs_net *net = cell->net;  in afs_proc_cell_remove()
714 	remove_proc_subtree(cell->name, net->proc_afs);  in afs_proc_cell_remove()
727 	p = proc_net_mkdir(net->net, "afs", net->net->proc_net);  in afs_proc_init()
754 	net->proc_afs = p;  in afs_proc_init()
761 	_leave(" = -ENOMEM");  in afs_proc_init()
762 	return -ENOMEM;  in afs_proc_init()
770 	proc_remove(net->proc_afs);  in afs_proc_cleanup()
771 	net->proc_afs = NULL;  in afs_proc_cleanup()