[mirror_ubuntu-bionic-kernel.git] / drivers / staging / batman-adv / vis.h

/*
 * Copyright (C) 2008-2009 B.A.T.M.A.N. contributors:
 *
 * Simon Wunderlich, Marek Lindner
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 *
 */

#define VIS_TIMEOUT		200000
#define VIS_FORMAT_DD_NAME	"dot_draw"
#define VIS_FORMAT_JSON_NAME	"json"

struct vis_info {
	unsigned long       first_seen;
	struct list_head    recv_list;
			    /* list of server-neighbors we received a vis-packet
			     * from.  we should not reply to them. */
	struct list_head send_list;
	struct kref refcount;
	/* this packet might be part of the vis send queue. */
	struct vis_packet packet;
	/* vis_info may follow here*/
} __attribute__((packed));

struct vis_info_entry {
	uint8_t  src[ETH_ALEN];
	uint8_t  dest[ETH_ALEN];
	uint8_t  quality;	/* quality = 0 means HNA */
} __attribute__((packed));

struct recvlist_node {
	struct list_head list;
	uint8_t mac[ETH_ALEN];
};

extern struct hashtable_t *vis_hash;
extern spinlock_t vis_hash_lock;

void proc_vis_insert_interface(const uint8_t *interface,
				      struct hlist_head *if_list,
				      bool primary);
void proc_vis_read_entry(struct seq_file *seq,
				struct vis_info_entry *entry,
				uint8_t *src,
				bool primary);
void proc_vis_read_prim_sec(struct seq_file *seq,
			    struct hlist_head *if_list);
void receive_server_sync_packet(struct vis_packet *vis_packet,
				int vis_info_len);
void receive_client_update_packet(struct vis_packet *vis_packet,
				  int vis_info_len);
int vis_init(void);
void vis_quit(void);
Commit	Line	Data
5beef3c9 AL	1	/*
	2	* Copyright (C) 2008-2009 B.A.T.M.A.N. contributors:
	3	*
	4	* Simon Wunderlich, Marek Lindner
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of version 2 of the GNU General Public
	8	* License as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	18	* 02110-1301, USA
	19	*
	20	*/
	21
	22	#define VIS_TIMEOUT 200000
	23	#define VIS_FORMAT_DD_NAME "dot_draw"
	24	#define VIS_FORMAT_JSON_NAME "json"
	25
	26	struct vis_info {
	27	unsigned long first_seen;
	28	struct list_head recv_list;
	29	/* list of server-neighbors we received a vis-packet
	30	* from. we should not reply to them. */
	31	struct list_head send_list;
107c32fe	32	struct kref refcount;
5beef3c9 AL	33	/* this packet might be part of the vis send queue. */
	34	struct vis_packet packet;
	35	/* vis_info may follow here*/
	36	} __attribute__((packed));
	37
	38	struct vis_info_entry {
	39	uint8_t src[ETH_ALEN];
	40	uint8_t dest[ETH_ALEN];
	41	uint8_t quality; /* quality = 0 means HNA */
	42	} __attribute__((packed));
	43
	44	struct recvlist_node {
	45	struct list_head list;
	46	uint8_t mac[ETH_ALEN];
	47	};
	48
5beef3c9 AL	49	extern struct hashtable_t *vis_hash;
	50	extern spinlock_t vis_hash_lock;
	51
f6497e38 LL	52	void proc_vis_insert_interface(const uint8_t *interface,
	53	struct hlist_head *if_list,
	54	bool primary);
e9b76450 ML	55	void proc_vis_read_entry(struct seq_file *seq,
e9b76450 ML	56	struct vis_info_entry *entry,
f6497e38 LL	57	uint8_t *src,
f6497e38 LL	58	bool primary);
e9b76450 ML	59	void proc_vis_read_prim_sec(struct seq_file *seq,
e9b76450 ML	60	struct hlist_head *if_list);
5beef3c9 AL	61	void receive_server_sync_packet(struct vis_packet *vis_packet,
	62	int vis_info_len);
	63	void receive_client_update_packet(struct vis_packet *vis_packet,
	64	int vis_info_len);
	65	int vis_init(void);
	66	void vis_quit(void);