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/******************************************************************************\
Copyright 2015 HP Development Company, L.P.
This program is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published by the
Free Software Foundation.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program;
if not, write to:
Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor
Boston, MA 02110-1301, USA.
\******************************************************************************/
# ifndef _HP_IPP_H
# define _HP_IPP_H
#include <cups/cups.h>
#include <cups/language.h>
#include <cups/ppd.h>
#define HP_DEV_URI_LEN 256
#define HP_DEV_NAME_LEN 128
#define MAX_ATTR_VALUES 8
#define MAX_IPP_DATA_LENGTH 20000
#define USB_BULK_TRANSFER_LENGTH 512
#define CRLF "\r\n"
#define CRLF_LENGTH 2
#define CRLFCRLF "\r\n\r\n"
#define CRLFCRLF_LENGTH 4
#define CHUNK_DELIMITER "0\r\n\r\n"
#define CHUNK_DELIMITER_LENGTH 5
#define BASE_DECIMAL 10
#define BASE_HEX 16
#define TIMEOUT 3
#if (CUPS_VERSION_MAJOR > 1) || (CUPS_VERSION_MINOR > 5)
#define HAVE_CUPS_1_6 1
#endif
#ifndef HAVE_CUPS_1_6
#define ippGetCount(attr) attr->num_values
#define ippGetGroupTag(attr) attr->group_tag
#define ippGetValueTag(attr) attr->value_tag
#define ippGetName(attr) attr->name
#define ippGetBoolean(attr, element) attr->values[element].boolean
#define ippGetInteger(attr, element) attr->values[element].integer
#define ippGetStatusCode(ipp) ipp->request.status.status_code
#define ippGetString(attr, element, language) attr->values[element].string.text
static ipp_attribute_t * ippFirstAttribute( ipp_t *ipp )
{
if (!ipp)
return (NULL);
return (ipp->current = ipp->attrs);
}
static ipp_attribute_t * ippNextAttribute( ipp_t *ipp )
{
if (!ipp || !ipp->current)
return (NULL);
return (ipp->current = ipp->current->next);
}
static int ippSetOperation( ipp_t *ipp, ipp_op_t op )
{
if (!ipp)
return (0);
ipp->request.op.operation_id = op;
return (1);
}
static int ippSetRequestId( ipp_t *ipp, int request_id )
{
if (!ipp)
return (0);
ipp->request.any.request_id = request_id;
return (1);
}
static int ippSetVersion( ipp_t *ipp, int major, int minor )
{
if (!ipp)
return (0);
ipp->request.any.version[0] = major;
ipp->request.any.version[1] = minor;
return (1);
}
#endif
typedef struct _printer_t
{
char device_uri [HP_DEV_URI_LEN] ;
char name [HP_DEV_NAME_LEN] ;
char printer_uri [HP_DEV_URI_LEN] ;
char location [HP_DEV_NAME_LEN] ;
char make_model [HP_DEV_NAME_LEN] ;
char info [HP_DEV_NAME_LEN] ;
int state;
int accepting;
struct _printer_t *next;
} printer_t;
typedef struct _attr_t
{
char* name;
void* values[MAX_ATTR_VALUES];
int count;
int type;
} attr_t;
typedef struct _raw_ipp
{
int data_length;
char data[MAX_IPP_DATA_LENGTH];
} raw_ipp;
typedef enum _HPIPP_RESULT
{
HPIPP_OK = 0,
HPIPP_ERROR = 1,
HPIPP_INVALID_LENGTH = 2,
} HPIPP_RESULT;
http_t * http = NULL; /* HTTP object */
int auth_cancel_req = 0; // 0--> authentication cancel is not requested,
// 1 --> authentication cancelled
http_t* acquireCupsInstance();
const char *getCupsErrorString(int status);
void freePrinterList(printer_t *list);
static ssize_t raw_ipp_response_read_callback(raw_ipp *raw_buffer,ipp_uchar_t *buffer,size_t length);
static ssize_t raw_ipp_request_callback(volatile raw_ipp *raw_buffer, ipp_uchar_t *buffer, size_t length);
void initializeIPPRequest(ipp_t *request);
int parsePrinterAttributes(ipp_t *response, printer_t * printer_list, int size);
ipp_t * createDeviceStatusRequest();
ipp_t * usbDoRequest(ipp_t *request, char* device_uri);
ipp_t * networkDoRequest(ipp_t *request, char* device_uri);
ipp_t * getDeviceStatusAttributes(char* device_uri, int *count);
int getCupsPrinters(printer_t **printer_list);
HPIPP_RESULT parseResponseHeader(char* header, int *content_length, int *chunked, int* header_size);
HPIPP_RESULT prepend_http_header(raw_ipp *raw_request);
enum HPMUD_RESULT sendUSBRequest(char *buf, int size, raw_ipp *responseptr, char * device_uri);
# endif //_IPP_H
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