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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 
24 typedef 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 
44 struct 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 
58 struct 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 
86 struct 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