#ifndef _IPP_H#define _IPP_H/* * Defines parts of the IPP protocol between the scheduler * and the printer.  Based on RFC2911 and RFC2910. *//* * Status code classes. */#define STATCLASS_OK(x)     ((x) >= 0x0000 && (x) <= 0x00ff)#define STATCLASS_INFO(x)   ((x) >= 0x0100 && (x) <= 0x01ff)#define STATCLASS_REDIR(x)  ((x) >= 0x0200 && (x) <= 0x02ff)#define STATCLASS_CLIERR(x) ((x) >= 0x0400 && (x) <= 0x04ff)#define STATCLASS_SRVERR(x) ((x) >= 0x0500 && (x) <= 0x05ff)/* * Status codes. */#define STAT_OK           0x0000  /* success */#define STAT_OK_ATTRIGN   0x0001  /* OK; some attrs ignored */#define STAT_OK_ATTRCON   0x0002  /* OK; some attrs conflicted */#define STAT_CLI_BADREQ   0x0400  /* invalid client request */#define STAT_CLI_FORBID   0x0401  /* request is forbidden */#define STAT_CLI_NOAUTH   0x0402  /* authentication required */#define STAT_CLI_NOPERM   0x0403  /* client not authorized */#define STAT_CLI_NOTPOS   0x0404  /* request not possible */#define STAT_CLI_TIMOUT   0x0405  /* client too slow */#define STAT_CLI_NOTFND   0x0406  /* no object found for URI */#define STAT_CLI_OBJGONE  0x0407  /* object no longer available */#define STAT_CLI_TOOBIG   0x0408  /* requested entity too big */#define STAT_CLI_TOOLNG   0x0409  /* attribute value too large */#define STAT_CLI_BADFMT   0x040a  /* unsupported doc format */#define STAT_CLI_NOTSUP   0x040b  /* attributes not supported */#define STAT_CLI_NOSCHM   0x040c  /* URI scheme not supported */#define STAT_CLI_NOCHAR   0x040d  /* charset not supported */#define STAT_CLI_ATTRCON  0x040e  /* attributes conflicted */#define STAT_CLI_NOCOMP   0x040f  /* compression not supported */#define STAT_CLI_COMPERR  0x0410  /* data can't be decompressed */#define STAT_CLI_FMTERR   0x0411  /* document format error */#define STAT_CLI_ACCERR   0x0412  /* error accessing data */#define STAT_SRV_INTERN   0x0500  /* unexpected internal error */#define STAT_SRV_NOTSUP   0x0501  /* operation not supported */#define STAT_SRV_UNAVAIL  0x0502  /* service unavailable */#define STAT_SRV_BADVER   0x0503  /* version not supported */#define STAT_SRV_DEVERR   0x0504  /* device error */#define STAT_SRV_TMPERR   0x0505  /* temporary error */#define STAT_SRV_REJECT   0x0506  /* server not accepting jobs */#define STAT_SRV_TOOBUSY  0x0507  /* server too busy */#define STAT_SRV_CANCEL   0x0508  /* job has been canceled */#define STAT_SRV_NOMULTI  0x0509  /* multi-doc jobs unsupported *//* * Operation IDs */#define OP_PRINT_JOB         0x02#define OP_PRINT_URI         0x03#define OP_VALIDATE_JOB      0x04#define OP_CREATE_JOB        0x05#define OP_SEND_DOC          0x06#define OP_SEND_URI          0x07#define OP_CANCEL_JOB        0x08#define OP_GET_JOB_ATTR      0x09#define OP_GET_JOBS          0x0a#define OP_GET_PRINTER_ATTR  0x0b#define OP_HOLD_JOB          0x0c#define OP_RELEASE_JOB       0x0d#define OP_RESTART_JOB       0x0e#define OP_PAUSE_PRINTER     0x10#define OP_RESUME_PRINTER    0x11#define OP_PURGE_JOBS        0x12/* * Attribute Tags. */#define TAG_OPERATION_ATTR   0x01	/* operation attributes tag */#define TAG_JOB_ATTR         0x02	/* job attributes tag */#define TAG_END_OF_ATTR      0x03	/* end of attributes tag */#define TAG_PRINTER_ATTR     0x04	/* printer attributes tag */#define TAG_UNSUPP_ATTR      0x05	/* unsupported attributes tag *//* * Value Tags. */#define TAG_UNSUPPORTED      0x10	/* unsupported value */#define TAG_UNKNOWN          0x12	/* unknown value */#define TAG_NONE             0x13	/* no value */#define TAG_INTEGER          0x21	/* integer */#define TAG_BOOLEAN          0x22	/* boolean */#define TAG_ENUM             0x23	/* enumeration */#define TAG_OCTSTR           0x30	/* octetString */#define TAG_DATETIME         0x31	/* dateTime */#define TAG_RESOLUTION       0x32	/* resolution */#define TAG_INTRANGE         0x33	/* rangeOfInteger */#define TAG_TEXTWLANG        0x35	/* textWithLanguage */#define TAG_NAMEWLANG        0x36	/* nameWithLanguage */#define TAG_TEXTWOLANG       0x41	/* textWithoutLanguage */#define TAG_NAMEWOLANG       0x42	/* nameWithoutLanguage */#define TAG_KEYWORD          0x44	/* keyword */#define TAG_URI              0x45	/* URI */#define TAG_URISCHEME        0x46	/* uriScheme */#define TAG_CHARSET          0x47	/* charset */#define TAG_NATULANG         0x48	/* naturalLanguage */#define TAG_MIMETYPE         0x49	/* mimeMediaType */struct ipp_hdr {	int8_t  major_version;	/* always 1 */	int8_t  minor_version;	/* always 1 */	union {		int16_t op;	/* operation ID */		int16_t st;	/* status */	} u;	int32_t request_id;		/* request ID */	char    attr_group[1];	/* start of optional attributes group */	/* optional data follows */};#define operation u.op#define status u.st#endif /* _IPP_H */