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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#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 */
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