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#ifndef _LINUX_DN_H
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#define _LINUX_DN_H
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/*
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        DECnet Data Structures and Constants
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*/
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/*
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 * DNPROTO_NSP can't be the same as SOL_SOCKET,
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 * so increment each by one (compared to ULTRIX)
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 */
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#define DNPROTO_NSP     2                       /* NSP protocol number       */
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#define DNPROTO_ROU     3                       /* Routing protocol number   */
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#define DNPROTO_NML     4                       /* Net mgt protocol number   */
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#define DNPROTO_EVL     5                       /* Evl protocol number (usr) */
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#define DNPROTO_EVR     6                       /* Evl protocol number (evl) */
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#define DNPROTO_NSPT    7                       /* NSP trace protocol number */
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#define DN_ADDL         2
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#define DN_MAXADDL      2 /* ULTRIX headers have 20 here, but pathworks has 2 */
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#define DN_MAXOPTL      16
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#define DN_MAXOBJL      16
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#define DN_MAXACCL      40
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#define DN_MAXALIASL    128
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#define DN_MAXNODEL     256
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#define DNBUFSIZE       65023
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/*
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 * SET/GET Socket options  - must match the DSO_ numbers below
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 */
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#define SO_CONDATA      1
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#define SO_CONACCESS    2
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#define SO_PROXYUSR     3
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#define SO_LINKINFO     7
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#define DSO_CONDATA     1        /* Set/Get connect data                */
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#define DSO_DISDATA     10       /* Set/Get disconnect data             */
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#define DSO_CONACCESS   2        /* Set/Get connect access data         */
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#define DSO_ACCEPTMODE  4        /* Set/Get accept mode                 */
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#define DSO_CONACCEPT   5        /* Accept deferred connection          */
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#define DSO_CONREJECT   6        /* Reject deferred connection          */
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#define DSO_LINKINFO    7        /* Set/Get link information            */
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#define DSO_STREAM      8        /* Set socket type to stream           */
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#define DSO_SEQPACKET   9        /* Set socket type to sequenced packet */
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#define DSO_MAXWINDOW   11       /* Maximum window size allowed         */
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#define DSO_NODELAY     12       /* Turn off nagle                      */
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#define DSO_CORK        13       /* Wait for more data!                 */
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#define DSO_SERVICES    14       /* NSP Services field                  */
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#define DSO_INFO        15       /* NSP Info field                      */
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#define DSO_MAX         15       /* Maximum option number               */
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/* LINK States */
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#define LL_INACTIVE     0
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#define LL_CONNECTING   1
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#define LL_RUNNING      2
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#define LL_DISCONNECTING 3
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#define ACC_IMMED 0
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#define ACC_DEFER 1
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#define SDF_WILD        1                  /* Wild card object          */
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#define SDF_PROXY       2                  /* Addr eligible for proxy   */
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#define SDF_UICPROXY    4                  /* Use uic-based proxy       */
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/* Structures */
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struct dn_naddr
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{
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        unsigned short          a_len;
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        unsigned char a_addr[DN_MAXADDL];
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};
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struct sockaddr_dn
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{
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        unsigned short          sdn_family;
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        unsigned char           sdn_flags;
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        unsigned char           sdn_objnum;
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        unsigned short          sdn_objnamel;
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        unsigned char           sdn_objname[DN_MAXOBJL];
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        struct   dn_naddr       sdn_add;
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};
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#define sdn_nodeaddrl   sdn_add.a_len   /* Node address length  */
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#define sdn_nodeaddr    sdn_add.a_addr  /* Node address         */
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/*
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 * DECnet set/get DSO_CONDATA, DSO_DISDATA (optional data) structure
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 */
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struct optdata_dn {
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        unsigned short  opt_status;     /* Extended status return */
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#define opt_sts opt_status
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        unsigned short  opt_optl;       /* Length of user data    */
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        unsigned char   opt_data[16];   /* User data              */
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};
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struct accessdata_dn
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{
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        unsigned char           acc_accl;
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        unsigned char           acc_acc[DN_MAXACCL];
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        unsigned char           acc_passl;
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        unsigned char           acc_pass[DN_MAXACCL];
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        unsigned char           acc_userl;
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        unsigned char           acc_user[DN_MAXACCL];
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};
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/*
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 * DECnet logical link information structure
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 */
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struct linkinfo_dn {
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        unsigned short  idn_segsize;    /* Segment size for link */
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        unsigned char   idn_linkstate;  /* Logical link state    */
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};
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/*
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 * Ethernet address format (for DECnet)
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 */
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union etheraddress {
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        unsigned char dne_addr[6];             /* Full ethernet address */
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  struct {
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                unsigned char dne_hiord[4];    /* DECnet HIORD prefix   */
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                unsigned char dne_nodeaddr[2]; /* DECnet node address   */
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  } dne_remote;
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};
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/*
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 * DECnet physical socket address format
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 */
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struct dn_addr {
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        unsigned short dna_family;      /* AF_DECnet               */
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        union etheraddress dna_netaddr; /* DECnet ethernet address */
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};
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#define DECNET_IOCTL_BASE 0x89 /* PROTOPRIVATE range */
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#define SIOCSNETADDR  _IOW(DECNET_IOCTL_BASE, 0xe0, struct dn_naddr)
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#define SIOCGNETADDR  _IOR(DECNET_IOCTL_BASE, 0xe1, struct dn_naddr)
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#define OSIOCSNETADDR _IOW(DECNET_IOCTL_BASE, 0xe0, int)
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#define OSIOCGNETADDR _IOR(DECNET_IOCTL_BASE, 0xe1, int)
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#endif /* _LINUX_DN_H */