1/*
2 * ATM Lan Emulation Daemon driver interface
3 *
4 * Marko Kiiskila <mkiiskila@yahoo.com>
5 */
6
7#ifndef _ATMLEC_H_
8#define _ATMLEC_H_
9
10#include <linux/atmapi.h>
11#include <linux/atmioc.h>
12#include <linux/atm.h>
13#include <linux/if_ether.h>
14#include <linux/types.h>
15
16/* ATM lec daemon control socket */
17#define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
18#define ATMLEC_DATA	_IO('a', ATMIOC_LANE+1)
19#define ATMLEC_MCAST	_IO('a', ATMIOC_LANE+2)
20
21/* Maximum number of LEC interfaces (tweakable) */
22#define MAX_LEC_ITF 48
23
24typedef enum {
25	l_set_mac_addr,
26	l_del_mac_addr,
27	l_svc_setup,
28	l_addr_delete,
29	l_topology_change,
30	l_flush_complete,
31	l_arp_update,
32	l_narp_req,		/* LANE2 mandates the use of this */
33	l_config,
34	l_flush_tran_id,
35	l_set_lecid,
36	l_arp_xmt,
37	l_rdesc_arp_xmt,
38	l_associate_req,
39	l_should_bridge		/* should we bridge this MAC? */
40} atmlec_msg_type;
41
42#define ATMLEC_MSG_TYPE_MAX l_should_bridge
43
44struct atmlec_config_msg {
45	unsigned int maximum_unknown_frame_count;
46	unsigned int max_unknown_frame_time;
47	unsigned short max_retry_count;
48	unsigned int aging_time;
49	unsigned int forward_delay_time;
50	unsigned int arp_response_time;
51	unsigned int flush_timeout;
52	unsigned int path_switching_delay;
53	unsigned int lane_version;	/* LANE2: 1 for LANEv1, 2 for LANEv2 */
54	int mtu;
55	int is_proxy;
56};
57
58struct atmlec_msg {
59	atmlec_msg_type type;
60	int sizeoftlvs;		/* LANE2: if != 0, tlvs follow */
61	union {
62		struct {
63			unsigned char mac_addr[ETH_ALEN];
64			unsigned char atm_addr[ATM_ESA_LEN];
65			unsigned int flag;	/*
66						 * Topology_change flag,
67						 * remoteflag, permanent flag,
68						 * lecid, transaction id
69						 */
70			unsigned int targetless_le_arp;	/* LANE2 */
71			unsigned int no_source_le_narp;	/* LANE2 */
72		} normal;
73		struct atmlec_config_msg config;
74		struct {
75			__u16 lec_id;				/* requestor lec_id  */
76			__u32 tran_id;				/* transaction id    */
77			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
78			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
79		} proxy;	/*
80				 * For mapping LE_ARP requests to responses. Filled by
81				 * zeppelin, returned by kernel. Used only when proxying
82				 */
83	} content;
84} __ATM_API_ALIGN;
85
86struct atmlec_ioc {
87	int dev_num;
88	unsigned char atm_addr[ATM_ESA_LEN];
89	unsigned char receive;	/* 1= receive vcc, 0 = send vcc */
90};
91#endif /* _ATMLEC_H_ */
92