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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _LINUX_DN_H
      3 #define _LINUX_DN_H
      4 
      5 #include <linux/ioctl.h>
      6 #include <linux/types.h>
      7 #include <linux/if_ether.h>
      8 
      9 /*
     10 
     11 	DECnet Data Structures and Constants
     12 
     13 */
     14 
     15 /*
     16  * DNPROTO_NSP can't be the same as SOL_SOCKET,
     17  * so increment each by one (compared to ULTRIX)
     18  */
     19 #define DNPROTO_NSP     2                       /* NSP protocol number       */
     20 #define DNPROTO_ROU     3                       /* Routing protocol number   */
     21 #define DNPROTO_NML     4                       /* Net mgt protocol number   */
     22 #define DNPROTO_EVL     5                       /* Evl protocol number (usr) */
     23 #define DNPROTO_EVR     6                       /* Evl protocol number (evl) */
     24 #define DNPROTO_NSPT    7                       /* NSP trace protocol number */
     25 
     26 
     27 #define DN_ADDL		2
     28 #define DN_MAXADDL	2 /* ULTRIX headers have 20 here, but pathworks has 2 */
     29 #define DN_MAXOPTL	16
     30 #define DN_MAXOBJL	16
     31 #define DN_MAXACCL	40
     32 #define DN_MAXALIASL	128
     33 #define DN_MAXNODEL	256
     34 #define DNBUFSIZE	65023
     35 
     36 /*
     37  * SET/GET Socket options  - must match the DSO_ numbers below
     38  */
     39 #define SO_CONDATA      1
     40 #define SO_CONACCESS    2
     41 #define SO_PROXYUSR     3
     42 #define SO_LINKINFO     7
     43 
     44 #define DSO_CONDATA     1        /* Set/Get connect data                */
     45 #define DSO_DISDATA     10       /* Set/Get disconnect data             */
     46 #define DSO_CONACCESS   2        /* Set/Get connect access data         */
     47 #define DSO_ACCEPTMODE  4        /* Set/Get accept mode                 */
     48 #define DSO_CONACCEPT   5        /* Accept deferred connection          */
     49 #define DSO_CONREJECT   6        /* Reject deferred connection          */
     50 #define DSO_LINKINFO    7        /* Set/Get link information            */
     51 #define DSO_STREAM      8        /* Set socket type to stream           */
     52 #define DSO_SEQPACKET   9        /* Set socket type to sequenced packet */
     53 #define DSO_MAXWINDOW   11       /* Maximum window size allowed         */
     54 #define DSO_NODELAY	12       /* Turn off nagle                      */
     55 #define DSO_CORK        13       /* Wait for more data!                 */
     56 #define DSO_SERVICES	14       /* NSP Services field                  */
     57 #define DSO_INFO	15       /* NSP Info field                      */
     58 #define DSO_MAX         15       /* Maximum option number               */
     59 
     60 
     61 /* LINK States */
     62 #define LL_INACTIVE	0
     63 #define LL_CONNECTING	1
     64 #define LL_RUNNING	2
     65 #define LL_DISCONNECTING 3
     66 
     67 #define ACC_IMMED 0
     68 #define ACC_DEFER 1
     69 
     70 #define SDF_WILD        1                  /* Wild card object          */
     71 #define SDF_PROXY       2                  /* Addr eligible for proxy   */
     72 #define SDF_UICPROXY    4                  /* Use uic-based proxy       */
     73 
     74 /* Structures */
     75 
     76 
     77 struct dn_naddr {
     78 	__le16		a_len;
     79 	__u8 a_addr[DN_MAXADDL]; /* Two bytes little endian */
     80 };
     81 
     82 struct sockaddr_dn {
     83 	__u16		sdn_family;
     84 	__u8		sdn_flags;
     85 	__u8		sdn_objnum;
     86 	__le16		sdn_objnamel;
     87 	__u8		sdn_objname[DN_MAXOBJL];
     88 	struct   dn_naddr	sdn_add;
     89 };
     90 #define sdn_nodeaddrl   sdn_add.a_len   /* Node address length  */
     91 #define sdn_nodeaddr    sdn_add.a_addr  /* Node address         */
     92 
     93 
     94 
     95 /*
     96  * DECnet set/get DSO_CONDATA, DSO_DISDATA (optional data) structure
     97  */
     98 struct optdata_dn {
     99         __le16  opt_status;     /* Extended status return */
    100 #define opt_sts opt_status
    101         __le16  opt_optl;       /* Length of user data    */
    102         __u8   opt_data[16];   /* User data              */
    103 };
    104 
    105 struct accessdata_dn {
    106 	__u8		acc_accl;
    107 	__u8		acc_acc[DN_MAXACCL];
    108 	__u8 		acc_passl;
    109 	__u8		acc_pass[DN_MAXACCL];
    110 	__u8 		acc_userl;
    111 	__u8		acc_user[DN_MAXACCL];
    112 };
    113 
    114 /*
    115  * DECnet logical link information structure
    116  */
    117 struct linkinfo_dn {
    118         __u16  idn_segsize;    /* Segment size for link */
    119         __u8   idn_linkstate;  /* Logical link state    */
    120 };
    121 
    122 /*
    123  * Ethernet address format (for DECnet)
    124  */
    125 union etheraddress {
    126         __u8 dne_addr[ETH_ALEN];      /* Full ethernet address */
    127   struct {
    128                 __u8 dne_hiord[4];    /* DECnet HIORD prefix   */
    129                 __u8 dne_nodeaddr[2]; /* DECnet node address   */
    130   } dne_remote;
    131 };
    132 
    133 
    134 /*
    135  * DECnet physical socket address format
    136  */
    137 struct dn_addr {
    138         __le16 dna_family;      /* AF_DECnet               */
    139         union etheraddress dna_netaddr; /* DECnet ethernet address */
    140 };
    141 
    142 #define DECNET_IOCTL_BASE 0x89 /* PROTOPRIVATE range */
    143 
    144 #define SIOCSNETADDR  _IOW(DECNET_IOCTL_BASE, 0xe0, struct dn_naddr)
    145 #define SIOCGNETADDR  _IOR(DECNET_IOCTL_BASE, 0xe1, struct dn_naddr)
    146 #define OSIOCSNETADDR _IOW(DECNET_IOCTL_BASE, 0xe0, int)
    147 #define OSIOCGNETADDR _IOR(DECNET_IOCTL_BASE, 0xe1, int)
    148 
    149 #endif /* _LINUX_DN_H */
    150