include/uapi/linux/atmlec.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * ATM Lan Emulation Daemon driver interface
   4  *
   5  * Marko Kiiskila <mkiiskila@yahoo.com>
   6  */
   7
   8 #ifndef _ATMLEC_H_
   9 #define _ATMLEC_H_
  10
  11 #include <linux/atmapi.h>
  12 #include <linux/atmioc.h>
  13 #include <linux/atm.h>
  14 #include <linux/if_ether.h>
  15 #include <linux/types.h>
  16
  17 /* ATM lec daemon control socket */
  18 #define ATMLEC_CTRL     _IO('a', ATMIOC_LANE)
  19 #define ATMLEC_DATA     _IO('a', ATMIOC_LANE+1)
  20 #define ATMLEC_MCAST    _IO('a', ATMIOC_LANE+2)
  21
  22 /* Maximum number of LEC interfaces (tweakable) */
  23 #define MAX_LEC_ITF 48
  24
  25 typedef enum {
  26         l_set_mac_addr,
  27         l_del_mac_addr,
  28         l_svc_setup,
  29         l_addr_delete,
  30         l_topology_change,
  31         l_flush_complete,
  32         l_arp_update,
  33         l_narp_req,             /* LANE2 mandates the use of this */
  34         l_config,
  35         l_flush_tran_id,
  36         l_set_lecid,
  37         l_arp_xmt,
  38         l_rdesc_arp_xmt,
  39         l_associate_req,
  40         l_should_bridge         /* should we bridge this MAC? */
  41 } atmlec_msg_type;
  42
  43 #define ATMLEC_MSG_TYPE_MAX l_should_bridge
  44
  45 struct atmlec_config_msg {
  46         unsigned int maximum_unknown_frame_count;
  47         unsigned int max_unknown_frame_time;
  48         unsigned short max_retry_count;
  49         unsigned int aging_time;
  50         unsigned int forward_delay_time;
  51         unsigned int arp_response_time;
  52         unsigned int flush_timeout;
  53         unsigned int path_switching_delay;
  54         unsigned int lane_version;      /* LANE2: 1 for LANEv1, 2 for LANEv2 */
  55         int mtu;
  56         int is_proxy;
  57 };
  58
  59 struct atmlec_msg {
  60         atmlec_msg_type type;
  61         int sizeoftlvs;         /* LANE2: if != 0, tlvs follow */
  62         union {
  63                 struct {
  64                         unsigned char mac_addr[ETH_ALEN];
  65                         unsigned char atm_addr[ATM_ESA_LEN];
  66                         unsigned int flag;      /*
  67                                                  * Topology_change flag,
  68                                                  * remoteflag, permanent flag,
  69                                                  * lecid, transaction id
  70                                                  */
  71                         unsigned int targetless_le_arp; /* LANE2 */
  72                         unsigned int no_source_le_narp; /* LANE2 */
  73                 } normal;
  74                 struct atmlec_config_msg config;
  75                 struct {
  76                         __u16 lec_id;                           /* requestor lec_id  */
  77                         __u32 tran_id;                          /* transaction id    */
  78                         unsigned char mac_addr[ETH_ALEN];       /* dst mac addr      */
  79                         unsigned char atm_addr[ATM_ESA_LEN];    /* reqestor ATM addr */
  80                 } proxy;        /*
  81                                  * For mapping LE_ARP requests to responses. Filled by
  82                                  * zeppelin, returned by kernel. Used only when proxying
  83                                  */
  84         } content;
  85 } __ATM_API_ALIGN;
  86
  87 struct atmlec_ioc {
  88         int dev_num;
  89         unsigned char atm_addr[ATM_ESA_LEN];
  90         unsigned char receive;  /* 1= receive vcc, 0 = send vcc */
  91 };
  92 #endif /* _ATMLEC_H_ */