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 */