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