43 static void l2tp_dfs_next_tunnel(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_tunnel()  argument
46 	if (pd->tunnel)  in l2tp_dfs_next_tunnel()
47 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_next_tunnel()
49 	pd->tunnel = l2tp_tunnel_get_nth(pd->net, pd->tunnel_idx);  in l2tp_dfs_next_tunnel()
50 	pd->tunnel_idx++;  in l2tp_dfs_next_tunnel()
53 static void l2tp_dfs_next_session(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_session()  argument
56 	if (pd->session)  in l2tp_dfs_next_session()
57 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_next_session()
59 	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx);  in l2tp_dfs_next_session()
60 	pd->session_idx++;  in l2tp_dfs_next_session()
62 	if (!pd->session) {  in l2tp_dfs_next_session()
63 		pd->session_idx = 0;  in l2tp_dfs_next_session()
64 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_next_session()
70 	struct l2tp_dfs_seq_data *pd = SEQ_START_TOKEN;  in l2tp_dfs_seq_start()  local
77 		pd = NULL;  in l2tp_dfs_seq_start()
80 	pd = m->private;  in l2tp_dfs_seq_start()
82 	if (!pd->tunnel)  in l2tp_dfs_seq_start()
83 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_seq_start()
85 		l2tp_dfs_next_session(pd);  in l2tp_dfs_seq_start()
88 	if (!pd->tunnel && !pd->session)  in l2tp_dfs_seq_start()
89 		pd = NULL;  in l2tp_dfs_seq_start()
92 	return pd;  in l2tp_dfs_seq_start()
103 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_stop()  local
105 	if (!pd || pd == SEQ_START_TOKEN)  in l2tp_dfs_seq_stop()
111 	if (pd->session) {  in l2tp_dfs_seq_stop()
112 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_seq_stop()
113 		pd->session = NULL;  in l2tp_dfs_seq_stop()
115 	if (pd->tunnel) {  in l2tp_dfs_seq_stop()
116 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_seq_stop()
117 		pd->tunnel = NULL;  in l2tp_dfs_seq_stop()
233 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_show()  local
251 	if (!pd->session)  in l2tp_dfs_seq_show()
252 		l2tp_dfs_seq_tunnel_show(m, pd->tunnel);  in l2tp_dfs_seq_show()
254 		l2tp_dfs_seq_session_show(m, pd->session);  in l2tp_dfs_seq_show()
269 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_open()  local
273 	pd = kzalloc(sizeof(*pd), GFP_KERNEL);  in l2tp_dfs_seq_open()
274 	if (!pd)  in l2tp_dfs_seq_open()
280 	pd->net = get_net_ns_by_pid(current->pid);  in l2tp_dfs_seq_open()
281 	if (IS_ERR(pd->net)) {  in l2tp_dfs_seq_open()
282 		rc = PTR_ERR(pd->net);  in l2tp_dfs_seq_open()
285 	netns_tracker_alloc(pd->net, &pd->ns_tracker, GFP_KERNEL);  in l2tp_dfs_seq_open()
291 	seq->private = pd;  in l2tp_dfs_seq_open()
297 	put_net_track(pd->net, &pd->ns_tracker);  in l2tp_dfs_seq_open()
299 	kfree(pd);  in l2tp_dfs_seq_open()
305 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_release()  local
309 	pd = seq->private;  in l2tp_dfs_seq_release()
310 	if (pd->net)  in l2tp_dfs_seq_release()
311 		put_net_track(pd->net, &pd->ns_tracker);  in l2tp_dfs_seq_release()
312 	kfree(pd);  in l2tp_dfs_seq_release()