V8/usr/sys/chaosld/types.h.BAK
#ifndef _CHAOS_
#define _CHAOS_
/*
* Accomodate Ritchie C compiler...
*/
#ifdef pdp11
#ifndef lint
#ifndef void
#define void int
#endif
#endif
#endif
#include "../chaosld/constants.h"
/*
* System and device independent include file for the Chaosnet NCP
*/
/*
* User interface structures
*/
/* Structure passed on open */
struct chopen {
short co_host; /* Host address to contact or zero to listen */
short co_async; /* If non-zero, don't wait for open done */
short co_clength; /* Length of contact string (follows struct) */
short co_length; /* Length of RFC data (follows contact str) */
short co_rwsize; /* Receive window size (0 for default) */
short co_mode; /* Connection mode (CHSTREAM or CHRECORD) */
};
/* Structure returned on open */
struct choreply {
int errno; /* Error code */
};
/* Structure returned by CHIOCRPKT ioctl */
struct chrpkt {
short cp_pktop; /* Packet opcode */
short cp_pklen; /* Length of packet data (follows struct) */
};
/* Record mode packet structure */
struct chpacket {
unsigned char cp_op; /* Packet opcode */
char cp_data[CHMAXDATA];
};
/* Structure returned by CHIOCGSTAT ioctl */
struct chstatus {
short st_fhost; /* Remote host */
short st_cnum; /* Local channel number */
short st_rwsize; /* Receive window size */
short st_twsize; /* Transmit window size */
short st_state; /* Connection state */
short st_ptype; /* OBSOLETE */
short st_plength; /* OBSOLETE */
short st_cmode; /* Mode of connection */
short st_oroom; /* Output window space left */
};
/* Structure passed to CHIOCREJECT ioctl */
struct chreject {
char *cr_reason; /* Error message string */
int cr_length; /* Length of error message string */
};
/* Structure passed to CHIOCNAME ioctl */
struct chstatname {
char *cn_name; /* Pointer to CHSTATNAME long string */
};
/*
* Chaosnet typedefs
*/
/*
* A chaos index - a hosts connection identifier
*/
typedef union {
unsigned short ci_idx; /* Index as a whole */
struct {
unsigned char ci_Tidx; /* Connection table index */
unsigned char ci_Uniq; /* Uniquizer for table slot */
} ci_bytes;
} chindex;
#define ci_uniq ci_bytes.ci_Uniq
#define ci_tidx ci_bytes.ci_Tidx
/*
* A chaos network address.
*/
typedef union {
unsigned short ch_addr; /* Address as a whole */
struct {
unsigned char ch_Host; /* Host number on subnet */
unsigned char ch_Subnet; /* Subnet number */
} ch_bytes;
} chaddr;
#define ch_subnet ch_bytes.ch_Subnet
#define ch_host ch_bytes.ch_Host
/* A chaosnet clock time - wraps around */
typedef unsigned short chtime;
/* A chaosnet packet number - wraps around */
typedef unsigned short chpknum;
/*
* This is the part of the packet header that is transmitted over the
* network, thus must have fixed, portable format from ncp to ncp
*/
struct pkt_header {
unsigned char ph_type; /* Protocol type */
unsigned char ph_op; /* Opcode of the packet */
union {
unsigned short ph_lfcwhole;
struct {
unsigned short ph_Len:12; /* Length of packet */
unsigned short ph_fcount:4; /* Forwarding count */
} ph_lfcparts;
} ph_lenfc;
chaddr ph_daddr; /* Destination address */
chindex ph_didx; /* Destination index */
chaddr ph_saddr; /* Source address */
chindex ph_sidx; /* Source index */
chpknum ph_pkn; /* Packet number */
chpknum ph_ackn; /* Acknowledged packet number */
};
#define ph_len ph_lenfc.ph_lfcparts.ph_Len
#define ph_fc ph_lenfc.ph_lfcparts.ph_fcount
#define ph_lenword ph_lenfc.ph_lfcwhole
/* Internal packet structure for the Chaosnet line discipline
*/
struct packet {
struct pkt_header ph; /* A copy of the packet header */
struct block *data; /* Linked list of data blocks (no header) */
struct packet *next; /* Link pointer for queue of packets */
chtime time; /* Last time packet was processed */
};
#define pk_type ph.ph_type
#define pk_op ph.ph_op
#define pk_len ph.ph_len
#define pk_fc ph.ph_fc
#define pk_lenword ph.ph_lenword
#define pk_daddr ph.ph_daddr
#define pk_didx ph.ph_didx
#define pk_saddr ph.ph_saddr
#define pk_sidx ph.ph_sidx
#define pk_pkn ph.ph_pkn
#define pk_ackn ph.ph_ackn
#define ISDATA(pkt) (((pkt)->pk_op & DATOP) != 0)
#define CONTROLLED(pkt) (ISDATA(pkt) || (pkt)->pk_op == RFCOP || \
(pkt)->pk_op == OPNOP || (pkt)->pk_op == EOFOP)
#define READABLE(pkt) (ISDATA(pkt) || (pkt)->pk_op == ANSOP || \
(pkt)->pk_op == UNCOP || (pkt)->pk_op == EOFOP)
struct sts_data { /* data of STS packets */
chpknum sts_receipt;
chpknum sts_rwsize;
};
struct rut_data { /* data of RUT packets */
unsigned short rd_subnet;
unsigned short rd_cost;
};
struct status {
char sb_name[CHSTATNAME];
struct statdata {
struct stathead {
unsigned short sb_Ident;
unsigned short sb_Nshorts;
} sb_head;
union {
struct statxcvr {
long sx_Rcvd;
long sx_Xmtd;
long sx_Abrt;
long sx_Lost;
long sx_Crcr;
long sx_Crci;
long sx_Leng;
long sx_Rej;
} sb_Xstat;
} sb_union;
} sb_data[1];
};
#define sb_ident sb_head.sb_Ident
#define sb_nshorts sb_head.sb_Nshorts
#define sb_xstat sb_union.sb_Xstat
/*
* This structure describes the state of an individual connection.
*/
struct connection {
unsigned char cn_sflags; /* State (wait) flags */
unsigned char cn_flags; /* Random flags */
unsigned char cn_state; /* State of the connection */
unsigned char cn_mode; /* Mode of this connection */
chtime cn_time; /* Last time connection was active */
chaddr cn_faddr; /* Foreign address */
chindex cn_fidx; /* Foreign index */
chindex cn_lidx; /* Local index */
struct queue *cn_rdq; /* Read queue for this connection */
struct block *cn_wait; /* Message block associated with a wait */
/* transmit side state */
chpknum cn_twsize; /* Transmit window size */
chpknum cn_tlast; /* Last packet we sent */
chpknum cn_trecvd; /* Last packet receipted by him */
chpknum cn_tacked; /* Last pkt acked by him */
struct packet *cn_thead; /* Head of list of pkts xmitted not acked */
struct packet *cn_ttail; /* Tail of list of pkts xmitted not acked */
struct packet *cn_toutput; /* Packet being filled for output */
/* recieve side state */
chpknum cn_rwsize; /* Receive window size */
chpknum cn_rlast; /* Last pkt rcvd (in order) */
chpknum cn_racked; /* Last pkt acked by us */
chpknum cn_rread; /* Last pkt read by our user */
chpknum cn_rsts; /* Max rread-racked before auto STS */
struct packet *cn_routorder; /* List of out-of-order packets */
struct packet *cn_expkt; /* Extra packet which may be read */
};
/* Bit values for cn_sflags */
#define CHOPNWAIT 0x01 /* Waiting for an open to complete */
#define CHSWAIT 0x02 /* Waiting for the state to change */
#define CHOWAIT 0x04 /* Waiting for a packet to be output */
#define CHEMPWAIT 0x08 /* Waiting for the xmit window to empty */
#define CHCLOSING 0x10 /* We are in the process of closing the conn */
#define CHOQWAIT 0x20 /* Like CHOWAIT, but we're not blocked */
/* Bit values for cn_flags */
#define CHEOFSEEN 0x01 /* An EOF has been received (recently) */
#define CHANSWER 0x02 /* This connection should send an ANS pkt */
#define CHSERVER 0x04 /* Connection was established by listening */
#define CHWRITER 0x08 /* Connection has been used for writing */
#define CHREADER 0x10 /* Connection has been used for reading */
/* Macros for certain connection states */
#define chtfull(conn) ((conn)->cn_state == CSOPEN && \
(conn)->cn_tlast - (conn)->cn_tacked >= (conn)->cn_twsize)
#define chtempty(conn) ((conn)->cn_state != CSOPEN || \
(conn)->cn_tlast == (conn)->cn_tacked)
#define chdead(conn) ((conn)->cn_state == CSCLOSED || \
(conn)->cn_state == CSLOST || (conn)->cn_state == CSINCT)
/* Structure for built-in service table */
struct service {
char *name;
int len;
int (*func)();
};
/*
* These are unsigned comparisons
* all the casting is necessary due to compiler flakiness with shorts etc.
* cmp_lt(a,b) is true if a < b, cmp_le(a,b) if a <= b, cmp_gt(a,b) if a > b
* and cmp_ge(a,b) if a >= b
*/
#define cmp_gt(a,b) (0100000 & ((b) - (a)))
#define cmp_ge(a,b) !cmp_lt(a,b)
#define cmp_lt(a,b) cmp_gt(b,a)
#define cmp_le(a,b) !cmp_gt(a,b)
#define NOBLOCK (struct block *)0
#define NOPKT (struct packet *)0
#define NOCONN (struct connection *)0
#endif