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#ifndef _LINUX_DN_H

#define _LINUX_DN_H

#include <linux/ioctl.h>

#include <linux/types.h>

#include <linux/if_ether.h>

/*

        DECnet Data Structures and Constants

*/

/*

 * DNPROTO_NSP can't be the same as SOL_SOCKET,

 * so increment each by one (compared to ULTRIX)

 */

#define DNPROTO_NSP     2                       /* NSP protocol number       */

#define DNPROTO_ROU     3                       /* Routing protocol number   */

#define DNPROTO_NML     4                       /* Net mgt protocol number   */

#define DNPROTO_EVL     5                       /* Evl protocol number (usr) */

#define DNPROTO_EVR     6                       /* Evl protocol number (evl) */

#define DNPROTO_NSPT    7                       /* NSP trace protocol number */

#define DN_ADDL         2

#define DN_MAXADDL      2 /* ULTRIX headers have 20 here, but pathworks has 2 */

#define DN_MAXOPTL      16

#define DN_MAXOBJL      16

#define DN_MAXACCL      40

#define DN_MAXALIASL    128

#define DN_MAXNODEL     256

#define DNBUFSIZE       65023

/*

 * SET/GET Socket options  - must match the DSO_ numbers below

 */

#define SO_CONDATA      1

#define SO_CONACCESS    2

#define SO_PROXYUSR     3

#define SO_LINKINFO     7

#define DSO_CONDATA     1        /* Set/Get connect data                */

#define DSO_DISDATA     10       /* Set/Get disconnect data             */

#define DSO_CONACCESS   2        /* Set/Get connect access data         */

#define DSO_ACCEPTMODE  4        /* Set/Get accept mode                 */

#define DSO_CONACCEPT   5        /* Accept deferred connection          */

#define DSO_CONREJECT   6        /* Reject deferred connection          */

#define DSO_LINKINFO    7        /* Set/Get link information            */

#define DSO_STREAM      8        /* Set socket type to stream           */

#define DSO_SEQPACKET   9        /* Set socket type to sequenced packet */

#define DSO_MAXWINDOW   11       /* Maximum window size allowed         */

#define DSO_NODELAY     12       /* Turn off nagle                      */

#define DSO_CORK        13       /* Wait for more data!                 */

#define DSO_SERVICES    14       /* NSP Services field                  */

#define DSO_INFO        15       /* NSP Info field                      */

#define DSO_MAX         15       /* Maximum option number               */

/* LINK States */

#define LL_INACTIVE     0

#define LL_CONNECTING   1

#define LL_RUNNING      2

#define LL_DISCONNECTING 3

#define ACC_IMMED 0

#define ACC_DEFER 1

#define SDF_WILD        1                  /* Wild card object          */

#define SDF_PROXY       2                  /* Addr eligible for proxy   */

#define SDF_UICPROXY    4                  /* Use uic-based proxy       */

/* Structures */

struct dn_naddr {

        __le16          a_len;

        __u8 a_addr[DN_MAXADDL]; /* Two bytes little endian */

};

struct sockaddr_dn {

        __u16           sdn_family;

        __u8            sdn_flags;

        __u8            sdn_objnum;

        __le16          sdn_objnamel;

        __u8            sdn_objname[DN_MAXOBJL];

        struct   dn_naddr       sdn_add;

};

#define sdn_nodeaddrl   sdn_add.a_len   /* Node address length  */

#define sdn_nodeaddr    sdn_add.a_addr  /* Node address         */

/*

 * DECnet set/get DSO_CONDATA, DSO_DISDATA (optional data) structure

 */

struct optdata_dn {

        __le16  opt_status;     /* Extended status return */

#define opt_sts opt_status

        __le16  opt_optl;       /* Length of user data    */

        __u8   opt_data[16];   /* User data              */

};

struct accessdata_dn {

        __u8            acc_accl;

        __u8            acc_acc[DN_MAXACCL];

        __u8            acc_passl;

        __u8            acc_pass[DN_MAXACCL];

        __u8            acc_userl;

        __u8            acc_user[DN_MAXACCL];

};

/*

 * DECnet logical link information structure

 */

struct linkinfo_dn {

        __u16  idn_segsize;    /* Segment size for link */

        __u8   idn_linkstate;  /* Logical link state    */

};

/*

 * Ethernet address format (for DECnet)

 */

union etheraddress {

        __u8 dne_addr[ETH_ALEN];      /* Full ethernet address */

  struct {

                __u8 dne_hiord[4];    /* DECnet HIORD prefix   */

                __u8 dne_nodeaddr[2]; /* DECnet node address   */

  } dne_remote;

};

/*

 * DECnet physical socket address format

 */

struct dn_addr {

        __le16 dna_family;      /* AF_DECnet               */

        union etheraddress dna_netaddr; /* DECnet ethernet address */

};

#define DECNET_IOCTL_BASE 0x89 /* PROTOPRIVATE range */

#define SIOCSNETADDR  _IOW(DECNET_IOCTL_BASE, 0xe0, struct dn_naddr)

#define SIOCGNETADDR  _IOR(DECNET_IOCTL_BASE, 0xe1, struct dn_naddr)

#define OSIOCSNETADDR _IOW(DECNET_IOCTL_BASE, 0xe0, int)

#define OSIOCGNETADDR _IOR(DECNET_IOCTL_BASE, 0xe1, int)

#endif /* _LINUX_DN_H */