asp.h

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/*
 * Copyright (c) 1990,1991 Regents of The University of Michigan.
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appears in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation, and that the name of The University
 * of Michigan not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission. This software is supplied as is without expressed or
 * implied warranties of any kind.
 *
 *  Research Systems Unix Group
 *  The University of Michigan
 *  c/o Mike Clark
 *  535 W. William Street
 *  Ann Arbor, Michigan
 *  +1-313-763-0525
 *  netatalk@itd.umich.edu
 */
 
#ifndef _ATALK_ASP_H
#define _ATALK_ASP_H 1
 
#ifndef NO_DDP
 
#include <sys/types.h>
#include <netatalk/at.h>
#include <atalk/atp.h>
#include <atalk/afp.h>
#include <atalk/server_child.h>
 
#define ASP_HDRSIZ        4
#define ASP_CMDSIZ        578
 
#define ASP_MAXPACKETS    8
#define ASP_CMDMAXSIZ     (ASP_CMDSIZ + ASP_HDRSIZ)
#define ASP_DATASIZ       (ASP_CMDSIZ*ASP_MAXPACKETS)
#define ASP_DATAMAXSIZ    ((ASP_CMDSIZ + ASP_HDRSIZ)*ASP_MAXPACKETS)
 
/* asp_getrequest() results: >0 the command byte, 0 session ended */
#define ASP_ERR_READ      (-1)  
#define ASP_ERR_SEQ       (-2)  
#define ASP_ERR_SID       (-3)  
#define ASP_NOREQUEST     (-4)  
 
typedef struct ASP {
    ATP         asp_atp;
    struct sockaddr_at  asp_sat;
    uint8_t         asp_wss;
    uint8_t            asp_sid;
    union {
        struct {
            char            *as_status;
            int             as_slen;
        }           asu_status;
        uint16_t        asu_seq;
    }           asp_u;
#define asp_status  asp_u.asu_status.as_status
#define asp_slen    asp_u.asu_status.as_slen
#define asp_seq     asp_u.asu_seq
    int         asp_flags;
    char        child, inited, *commands;
    char                cmdbuf[ASP_CMDMAXSIZ];
    char                data[ASP_DATAMAXSIZ];
    size_t      cmdlen, datalen;
    off_t       read_count, write_count;
    int         asp_ipc_fd;
    int         asp_hint_fd;
    int         asp_cnx_cnt;
    int         asp_cnx_max;
} *ASP;
 
#define ASPFL_SLS   1
#define ASPFL_SSS   2
 
#define ASPFUNC_CLOSE   1
#define ASPFUNC_CMD 2
#define ASPFUNC_STAT    3
#define ASPFUNC_OPEN    4
#define ASPFUNC_TICKLE  5
#define ASPFUNC_WRITE   6
#define ASPFUNC_WRTCONT 7
#define ASPFUNC_ATTN    8
 
#define ASPERR_OK   0x0000
#define ASPERR_BADVERS  0xfbd6
#define ASPERR_BUFSMALL 0xfbd5
#define ASPERR_NOSESS   0xfbd4
#define ASPERR_NOSERV   0xfbd3
#define ASPERR_PARM 0xfbd2
#define ASPERR_SERVBUSY 0xfbd1
#define ASPERR_SESSCLOS 0xfbd0
#define ASPERR_SIZERR   0xfbcf
#define ASPERR_TOOMANY  0xfbce
#define ASPERR_NOACK    0xfbcd
 
extern ASP asp_init(ATP);
extern void asp_setstatus(ASP, char *, const int);
extern ASP asp_getsession(ASP, server_child_t *, const int, afp_child_t **);
extern int asp_close(ASP);
extern int asp_shutdown(ASP);
extern int asp_attention(ASP, AFPUserBytes);
extern int asp_getrequest(ASP);
extern int asp_cmdreply(ASP, int);
extern int asp_wrtcont(ASP, char *, size_t *);
#define asp_wrtreply(a,b)   asp_cmdreply((a), (b))
extern void asp_kill(int);
extern int asp_tickle(ASP, const uint8_t, struct sockaddr_at *);
extern void asp_stop_tickle(void);
 
#endif  /* NO_DDP */
#endif