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422 giacomo 1
/*
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 *
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 * ATM Lan Emulation Daemon vs. driver interface
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 *
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 * carnil@cs.tut.fi
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 *
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 */
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#ifndef _ATMLEC_H_
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#define _ATMLEC_H_
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#include <linux/atmapi.h>
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#include <linux/atmioc.h>
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#include <linux/atm.h>
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#include <linux/if_ether.h>
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/* ATM lec daemon control socket */
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#define ATMLEC_CTRL _IO('a',ATMIOC_LANE)
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#define ATMLEC_DATA _IO('a',ATMIOC_LANE+1)
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#define ATMLEC_MCAST _IO('a',ATMIOC_LANE+2)
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/* Maximum number of LEC interfaces (tweakable) */
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#define MAX_LEC_ITF 48
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/* From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.
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 * E.g. if MAX_LEC_ITF = 48 and NUM_TR_DEVS = 8, then lec0-lec39 are for
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 * Ethernet ELANs and lec40-lec47 are for Token Ring ELANS.
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 */
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#define NUM_TR_DEVS 8
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typedef enum {
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        l_set_mac_addr,   l_del_mac_addr,
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        l_svc_setup,
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        l_addr_delete,    l_topology_change,
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        l_flush_complete, l_arp_update,
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        l_narp_req, /* LANE2 mandates the use of this */
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        l_config,         l_flush_tran_id,
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        l_set_lecid,      l_arp_xmt,
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        l_rdesc_arp_xmt,
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        l_associate_req,
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        l_should_bridge   /* should we bridge this MAC? */
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} atmlec_msg_type;
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#define ATMLEC_MSG_TYPE_MAX l_should_bridge
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struct atmlec_config_msg {
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        unsigned int maximum_unknown_frame_count;
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        unsigned int max_unknown_frame_time;
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        unsigned short max_retry_count;
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        unsigned int aging_time;
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        unsigned int forward_delay_time;
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        unsigned int arp_response_time;
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        unsigned int flush_timeout;
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        unsigned int path_switching_delay;
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        unsigned int  lane_version; /* LANE2: 1 for LANEv1, 2 for LANEv2 */
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        int mtu;
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        int is_proxy;
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};
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struct atmlec_msg {
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        atmlec_msg_type type;
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        int             sizeoftlvs;        /* LANE2: if != 0, tlvs follow */
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        union {
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                struct {
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                        unsigned char mac_addr[ETH_ALEN];
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                        unsigned char atm_addr[ATM_ESA_LEN];
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                        unsigned int flag;/* Topology_change flag,
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                                              remoteflag, permanent flag,
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                                              lecid, transaction id */
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                        unsigned int targetless_le_arp; /* LANE2 */
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                        unsigned int no_source_le_narp; /* LANE2 */
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                } normal;
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                struct atmlec_config_msg config;
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                struct {
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                        uint16_t lec_id;                     /* requestor lec_id  */
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                        uint32_t tran_id;                    /* transaction id    */
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                        unsigned char mac_addr[ETH_ALEN];    /* dst mac addr      */
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                        unsigned char atm_addr[ATM_ESA_LEN]; /* reqestor ATM addr */
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                } proxy;
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                     /* For mapping LE_ARP requests to responses. Filled by */
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        } content;       /* zeppelin, returned by kernel. Used only when proxying */
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} __ATM_API_ALIGN;
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struct atmlec_ioc {
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        int dev_num;
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        unsigned char atm_addr[ATM_ESA_LEN];
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        unsigned char receive;    /* 1= receive vcc, 0 = send vcc */
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};
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#endif /* _ATMLEC_H_ */