48 static void l2tp_dfs_next_tunnel(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_tunnel()  argument
51 	if (pd->tunnel)  in l2tp_dfs_next_tunnel()
52 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_next_tunnel()
54 	pd->tunnel = l2tp_tunnel_get_nth(pd->net, pd->tunnel_idx);  in l2tp_dfs_next_tunnel()
55 	pd->tunnel_idx++;  in l2tp_dfs_next_tunnel()
58 static void l2tp_dfs_next_session(struct l2tp_dfs_seq_data *pd)  in l2tp_dfs_next_session()  argument
61 	if (pd->session)  in l2tp_dfs_next_session()
62 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_next_session()
64 	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx);  in l2tp_dfs_next_session()
65 	pd->session_idx++;  in l2tp_dfs_next_session()
67 	if (pd->session == NULL) {  in l2tp_dfs_next_session()
68 		pd->session_idx = 0;  in l2tp_dfs_next_session()
69 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_next_session()
76 	struct l2tp_dfs_seq_data *pd = SEQ_START_TOKEN;  in l2tp_dfs_seq_start()  local
83 	pd = m->private;  in l2tp_dfs_seq_start()
85 	if (pd->tunnel == NULL)  in l2tp_dfs_seq_start()
86 		l2tp_dfs_next_tunnel(pd);  in l2tp_dfs_seq_start()
88 		l2tp_dfs_next_session(pd);  in l2tp_dfs_seq_start()
91 	if ((pd->tunnel == NULL) && (pd->session == NULL))  in l2tp_dfs_seq_start()
92 		pd = NULL;  in l2tp_dfs_seq_start()
95 	return pd;  in l2tp_dfs_seq_start()
107 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_stop()  local
109 	if (!pd || pd == SEQ_START_TOKEN)  in l2tp_dfs_seq_stop()
115 	if (pd->session) {  in l2tp_dfs_seq_stop()
116 		l2tp_session_dec_refcount(pd->session);  in l2tp_dfs_seq_stop()
117 		pd->session = NULL;  in l2tp_dfs_seq_stop()
119 	if (pd->tunnel) {  in l2tp_dfs_seq_stop()
120 		l2tp_tunnel_dec_refcount(pd->tunnel);  in l2tp_dfs_seq_stop()
121 		pd->tunnel = NULL;  in l2tp_dfs_seq_stop()
238 	struct l2tp_dfs_seq_data *pd = v;  in l2tp_dfs_seq_show()  local
256 	if (!pd->session)  in l2tp_dfs_seq_show()
257 		l2tp_dfs_seq_tunnel_show(m, pd->tunnel);  in l2tp_dfs_seq_show()
259 		l2tp_dfs_seq_session_show(m, pd->session);  in l2tp_dfs_seq_show()
274 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_open()  local
278 	pd = kzalloc(sizeof(*pd), GFP_KERNEL);  in l2tp_dfs_seq_open()
279 	if (pd == NULL)  in l2tp_dfs_seq_open()
285 	pd->net = get_net_ns_by_pid(current->pid);  in l2tp_dfs_seq_open()
286 	if (IS_ERR(pd->net)) {  in l2tp_dfs_seq_open()
287 		rc = PTR_ERR(pd->net);  in l2tp_dfs_seq_open()
296 	seq->private = pd;  in l2tp_dfs_seq_open()
302 	put_net(pd->net);  in l2tp_dfs_seq_open()
304 	kfree(pd);  in l2tp_dfs_seq_open()
310 	struct l2tp_dfs_seq_data *pd;  in l2tp_dfs_seq_release()  local
314 	pd = seq->private;  in l2tp_dfs_seq_release()
315 	if (pd->net)  in l2tp_dfs_seq_release()
316 		put_net(pd->net);  in l2tp_dfs_seq_release()
317 	kfree(pd);  in l2tp_dfs_seq_release()