42 static void l2tp_dfs_next_tunnel(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_tunnel()  argument
45 	if (pd->tunnel)  in l2tp_dfs_next_tunnel()
46 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_next_tunnel()
48 	pd->tunnel = l2tp_tunnel_get_nth(pd->net, pd->tunnel_idx);  in l2tp_dfs_next_tunnel()
49 	pd->tunnel_idx++;  in l2tp_dfs_next_tunnel()
52 static void l2tp_dfs_next_session(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_session()  argument
55 	if (pd->session)  in l2tp_dfs_next_session()
56 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_next_session()
58 	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx);  in l2tp_dfs_next_session()
59 	pd->session_idx++;  in l2tp_dfs_next_session()
61 	if (!pd->session) {  in l2tp_dfs_next_session()
62 		pd->session_idx = 0;  in l2tp_dfs_next_session()
63 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_next_session()
69 	struct l2tp_dfs_seq_data *pd = SEQ_START_TOKEN;  in l2tp_dfs_seq_start()  local
76 		pd = NULL;  in l2tp_dfs_seq_start()
79 	pd = m->private;  in l2tp_dfs_seq_start()
81 	if (!pd->tunnel)  in l2tp_dfs_seq_start()
82 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_seq_start()
84 		l2tp_dfs_next_session(pd);  in l2tp_dfs_seq_start()
87 	if (!pd->tunnel && !pd->session)  in l2tp_dfs_seq_start()
88 		pd = NULL;  in l2tp_dfs_seq_start()
91 	return pd;  in l2tp_dfs_seq_start()
102 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_stop()  local
104 	if (!pd || pd == SEQ_START_TOKEN)  in l2tp_dfs_seq_stop()
110 	if (pd->session) {  in l2tp_dfs_seq_stop()
111 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_seq_stop()
112 		pd->session = NULL;  in l2tp_dfs_seq_stop()
114 	if (pd->tunnel) {  in l2tp_dfs_seq_stop()
115 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_seq_stop()
116 		pd->tunnel = NULL;  in l2tp_dfs_seq_stop()
235 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_show()  local
253 	if (!pd->session)  in l2tp_dfs_seq_show()
254 		l2tp_dfs_seq_tunnel_show(m, pd->tunnel);  in l2tp_dfs_seq_show()
256 		l2tp_dfs_seq_session_show(m, pd->session);  in l2tp_dfs_seq_show()
271 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_open()  local
275 	pd = kzalloc(sizeof(*pd), GFP_KERNEL);  in l2tp_dfs_seq_open()
276 	if (!pd)  in l2tp_dfs_seq_open()
282 	pd->net = get_net_ns_by_pid(current->pid);  in l2tp_dfs_seq_open()
283 	if (IS_ERR(pd->net)) {  in l2tp_dfs_seq_open()
284 		rc = PTR_ERR(pd->net);  in l2tp_dfs_seq_open()
293 	seq->private = pd;  in l2tp_dfs_seq_open()
299 	put_net(pd->net);  in l2tp_dfs_seq_open()
301 	kfree(pd);  in l2tp_dfs_seq_open()
307 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_release()  local
311 	pd = seq->private;  in l2tp_dfs_seq_release()
312 	if (pd->net)  in l2tp_dfs_seq_release()
313 		put_net(pd->net);  in l2tp_dfs_seq_release()
314 	kfree(pd);  in l2tp_dfs_seq_release()