Commit message: DBUS notifications could crash the scheduler (Issue #5143)

- scheduler/ipp.c: Make sure requesting-user-name string is valid UTF-8.
CVE: CVE-2017-18248
CWE: CWE-20
Vulnerability description: The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification.

Project: cups
File: ipp.c

add_job(cupsd_client_t  *con,		/* I - Client connection */
	cupsd_printer_t *printer,	/* I - Destination printer */
	mime_type_t     *filetype)	/* I - First print file type, if any */
{
  http_status_t	status;			/* Policy status */
  ipp_attribute_t *attr,		/* Current attribute */
		*auth_info;		/* auth-info attribute */
  const char	*mandatory;		/* Current mandatory job attribute */
  const char	*val;			/* Default option value */
  int		priority;		/* Job priority */
  cupsd_job_t	*job;			/* Current job */
  char		job_uri[HTTP_MAX_URI];	/* Job URI */
  int		kbytes;			/* Size of print file */
  int		i;			/* Looping var */
  int		lowerpagerange;		/* Page range bound */
  int		exact;			/* Did we have an exact match? */
  ipp_attribute_t *media_col,		/* media-col attribute */
		*media_margin;		/* media-*-margin attribute */
  ipp_t		*unsup_col;		/* media-col in unsupported response */
  static const char * const readonly[] =/* List of read-only attributes */
  {
    "date-time-at-completed",
    "date-time-at-creation",
    "date-time-at-processing",
    "job-detailed-status-messages",
    "job-document-access-errors",
    "job-id",
    "job-impressions-completed",
    "job-k-octets-completed",
    "job-media-sheets-completed",
    "job-pages-completed",
    "job-printer-up-time",
    "job-printer-uri",
    "job-state",
    "job-state-message",
    "job-state-reasons",
    "job-uri",
    "number-of-documents",
    "number-of-intervening-jobs",
    "output-device-assigned",
    "time-at-completed",
    "time-at-creation",
    "time-at-processing"
  };


  cupsdLogMessage(CUPSD_LOG_DEBUG2, "add_job(%p[%d], %p(%s), %p(%s/%s))",
                  con, con->number, printer, printer->name,
		  filetype, filetype ? filetype->super : "none",
		  filetype ? filetype->type : "none");

 /*
  * Check remote printing to non-shared printer...
  */

  if (!printer->shared &&
      _cups_strcasecmp(con->http->hostname, "localhost") &&
      _cups_strcasecmp(con->http->hostname, ServerName))
  {
    send_ipp_status(con, IPP_NOT_AUTHORIZED,
                    _("The printer or class is not shared."));
    return (NULL);
  }

 /*
  * Check policy...
  */

  auth_info = ippFindAttribute(con->request, "auth-info", IPP_TAG_TEXT);

  if ((status = cupsdCheckPolicy(printer->op_policy_ptr, con, NULL)) != HTTP_OK)
  {
    send_http_error(con, status, printer);
    return (NULL);
  }
  else if (printer->num_auth_info_required == 1 &&
           !strcmp(printer->auth_info_required[0], "negotiate") &&
           !con->username[0])
  {
    send_http_error(con, HTTP_UNAUTHORIZED, printer);
    return (NULL);
  }
#ifdef HAVE_SSL
  else if (auth_info && !con->http->tls &&
           !httpAddrLocalhost(con->http->hostaddr))
  {
   /*
    * Require encryption of auth-info over non-local connections...
    */

    send_http_error(con, HTTP_UPGRADE_REQUIRED, printer);
    return (NULL);
  }
#endif /* HAVE_SSL */

 /*
  * See if the printer is accepting jobs...
  */

  if (!printer->accepting)
  {
    send_ipp_status(con, IPP_NOT_ACCEPTING,
                    _("Destination \"%s\" is not accepting jobs."),
                    printer->name);
    return (NULL);
  }

 /*
  * Validate job template attributes; for now just document-format,
  * copies, job-sheets, number-up, page-ranges, mandatory attributes, and
  * media...
  */

  for (i = 0; i < (int)(sizeof(readonly) / sizeof(readonly[0])); i ++)
  {
    if ((attr = ippFindAttribute(con->request, readonly[i], IPP_TAG_ZERO)) != NULL)
    {
      ippDeleteAttribute(con->request, attr);

      if (StrictConformance)
      {
	send_ipp_status(con, IPP_BAD_REQUEST, _("The '%s' Job Status attribute cannot be supplied in a job creation request."), readonly[i]);
	return (NULL);
      }

      cupsdLogMessage(CUPSD_LOG_INFO, "Unexpected '%s' Job Status attribute in a job creation request.", readonly[i]);
    }
  }

  if (printer->pc)
  {
    for (mandatory = (char *)cupsArrayFirst(printer->pc->mandatory);
	 mandatory;
	 mandatory = (char *)cupsArrayNext(printer->pc->mandatory))
    {
      if (!ippFindAttribute(con->request, mandatory, IPP_TAG_ZERO))
      {
       /*
	* Missing a required attribute...
	*/

	send_ipp_status(con, IPP_CONFLICT,
			_("The \"%s\" attribute is required for print jobs."),
			mandatory);
	return (NULL);
      }
    }
  }

  if (filetype && printer->filetypes &&
      !cupsArrayFind(printer->filetypes, filetype))
  {
    char	mimetype[MIME_MAX_SUPER + MIME_MAX_TYPE + 2];
					/* MIME media type string */


    snprintf(mimetype, sizeof(mimetype), "%s/%s", filetype->super,
             filetype->type);

    send_ipp_status(con, IPP_DOCUMENT_FORMAT,
                    _("Unsupported format \"%s\"."), mimetype);

    ippAddString(con->response, IPP_TAG_UNSUPPORTED_GROUP, IPP_TAG_MIMETYPE,
                 "document-format", NULL, mimetype);

    return (NULL);
  }

  if ((attr = ippFindAttribute(con->request, "copies",
                               IPP_TAG_INTEGER)) != NULL)
  {
    if (attr->values[0].integer < 1 || attr->values[0].integer > MaxCopies)
    {
      send_ipp_status(con, IPP_ATTRIBUTES, _("Bad copies value %d."),
                      attr->values[0].integer);
      ippAddInteger(con->response, IPP_TAG_UNSUPPORTED_GROUP, IPP_TAG_INTEGER,
	            "copies", attr->values[0].integer);
      return (NULL);
    }
  }

  if ((attr = ippFindAttribute(con->request, "job-sheets",
                               IPP_TAG_ZERO)) != NULL)
  {
    if (attr->value_tag != IPP_TAG_KEYWORD &&
        attr->value_tag != IPP_TAG_NAME)
    {
      send_ipp_status(con, IPP_BAD_REQUEST, _("Bad job-sheets value type."));
      return (NULL);
    }

    if (attr->num_values > 2)
    {
      send_ipp_status(con, IPP_BAD_REQUEST,
                      _("Too many job-sheets values (%d > 2)."),
		      attr->num_values);
      return (NULL);
    }

    for (i = 0; i < attr->num_values; i ++)
      if (strcmp(attr->values[i].string.text, "none") &&
          !cupsdFindBanner(attr->values[i].string.text))
      {
	send_ipp_status(con, IPP_BAD_REQUEST, _("Bad job-sheets value \"%s\"."),
			attr->values[i].string.text);
	return (NULL);
      }
  }

  if ((attr = ippFindAttribute(con->request, "number-up",
                               IPP_TAG_INTEGER)) != NULL)
  {
    if (attr->values[0].integer != 1 &&
        attr->values[0].integer != 2 &&
        attr->values[0].integer != 4 &&
        attr->values[0].integer != 6 &&
        attr->values[0].integer != 9 &&
        attr->values[0].integer != 16)
    {
      send_ipp_status(con, IPP_ATTRIBUTES, _("Bad number-up value %d."),
                      attr->values[0].integer);
      ippAddInteger(con->response, IPP_TAG_UNSUPPORTED_GROUP, IPP_TAG_INTEGER,
	            "number-up", attr->values[0].integer);
      return (NULL);
    }
  }

  if ((attr = ippFindAttribute(con->request, "page-ranges",
                               IPP_TAG_RANGE)) != NULL)
  {
    for (i = 0, lowerpagerange = 1; i < attr->num_values; i ++)
    {
      if (attr->values[i].range.lower < lowerpagerange ||
	  attr->values[i].range.lower > attr->values[i].range.upper)
      {
	send_ipp_status(con, IPP_BAD_REQUEST,
	                _("Bad page-ranges values %d-%d."),
	                attr->values[i].range.lower,
			attr->values[i].range.upper);
	return (NULL);
      }

      lowerpagerange = attr->values[i].range.upper + 1;
    }
  }

 /*
  * Do media selection as needed...
  */

  if (!ippFindAttribute(con->request, "PageRegion", IPP_TAG_ZERO) &&
      !ippFindAttribute(con->request, "PageSize", IPP_TAG_ZERO) &&
      _ppdCacheGetPageSize(printer->pc, con->request, NULL, &exact))
  {
    if (!exact &&
        (media_col = ippFindAttribute(con->request, "media-col",
	                              IPP_TAG_BEGIN_COLLECTION)) != NULL)
    {
      send_ipp_status(con, IPP_OK_SUBST, _("Unsupported margins."));

      unsup_col = ippNew();
      if ((media_margin = ippFindAttribute(media_col->values[0].collection,
                                           "media-bottom-margin",
					   IPP_TAG_INTEGER)) != NULL)
        ippAddInteger(unsup_col, IPP_TAG_ZERO, IPP_TAG_INTEGER,
	              "media-bottom-margin", media_margin->values[0].integer);

      if ((media_margin = ippFindAttribute(media_col->values[0].collection,
                                           "media-left-margin",
					   IPP_TAG_INTEGER)) != NULL)
        ippAddInteger(unsup_col, IPP_TAG_ZERO, IPP_TAG_INTEGER,
	              "media-left-margin", media_margin->values[0].integer);

      if ((media_margin = ippFindAttribute(media_col->values[0].collection,
                                           "media-right-margin",
					   IPP_TAG_INTEGER)) != NULL)
        ippAddInteger(unsup_col, IPP_TAG_ZERO, IPP_TAG_INTEGER,
	              "media-right-margin", media_margin->values[0].integer);

      if ((media_margin = ippFindAttribute(media_col->values[0].collection,
                                           "media-top-margin",
					   IPP_TAG_INTEGER)) != NULL)
        ippAddInteger(unsup_col, IPP_TAG_ZERO, IPP_TAG_INTEGER,
	              "media-top-margin", media_margin->values[0].integer);

      ippAddCollection(con->response, IPP_TAG_UNSUPPORTED_GROUP, "media-col",
                       unsup_col);
      ippDelete(unsup_col);
    }
  }

 /*
  * Make sure we aren't over our limit...
  */

  if (MaxJobs && cupsArrayCount(Jobs) >= MaxJobs)
    cupsdCleanJobs();

  if (MaxJobs && cupsArrayCount(Jobs) >= MaxJobs)
  {
    send_ipp_status(con, IPP_NOT_POSSIBLE, _("Too many active jobs."));
    return (NULL);
  }

  if ((i = check_quotas(con, printer)) < 0)
  {
    send_ipp_status(con, IPP_NOT_POSSIBLE, _("Quota limit reached."));
    return (NULL);
  }
  else if (i == 0)
  {
    send_ipp_status(con, IPP_NOT_AUTHORIZED, _("Not allowed to print."));
    return (NULL);
  }

 /*
  * Create the job and set things up...
  */

  if ((attr = ippFindAttribute(con->request, "job-priority",
                               IPP_TAG_INTEGER)) != NULL)
    priority = attr->values[0].integer;
  else
  {
    if ((val = cupsGetOption("job-priority", printer->num_options,
                             printer->options)) != NULL)
      priority = atoi(val);
    else
      priority = 50;

    ippAddInteger(con->request, IPP_TAG_JOB, IPP_TAG_INTEGER, "job-priority",
                  priority);
  }

  if ((attr = ippFindAttribute(con->request, "job-name", IPP_TAG_ZERO)) == NULL)
    ippAddString(con->request, IPP_TAG_JOB, IPP_TAG_NAME, "job-name", NULL, "Untitled");
  else if ((attr->value_tag != IPP_TAG_NAME &&
            attr->value_tag != IPP_TAG_NAMELANG) ||
           attr->num_values != 1)
  {
    send_ipp_status(con, IPP_ATTRIBUTES,
                    _("Bad job-name value: Wrong type or count."));
    if ((attr = ippCopyAttribute(con->response, attr, 0)) != NULL)
      attr->group_tag = IPP_TAG_UNSUPPORTED_GROUP;
    return (NULL);
  }
  else if (!ippValidateAttribute(attr))
  {
    send_ipp_status(con, IPP_ATTRIBUTES, _("Bad job-name value: %s"),
                    cupsLastErrorString());
    if ((attr = ippCopyAttribute(con->response, attr, 0)) != NULL)
      attr->group_tag = IPP_TAG_UNSUPPORTED_GROUP;
     return (NULL);
   }
 
   if ((job = cupsdAddJob(priority, printer->name)) == NULL)
   {
     send_ipp_status(con, IPP_INTERNAL_ERROR,
                    _("Unable to add job for destination \"%s\"."),
		    printer->name);
    return (NULL);
  }

  job->dtype   = printer->type & (CUPS_PRINTER_CLASS | CUPS_PRINTER_REMOTE);
  job->attrs   = con->request;
  job->dirty   = 1;
  con->request = ippNewRequest(job->attrs->request.op.operation_id);

  cupsdMarkDirty(CUPSD_DIRTY_JOBS);

   add_job_uuid(job);
   apply_printer_defaults(printer, job);
 
  attr = ippFindAttribute(job->attrs, "requesting-user-name", IPP_TAG_NAME);
   if (con->username[0])
   {
     cupsdSetString(&job->username, con->username);

    if (attr)
      ippSetString(job->attrs, &attr, 0, con->username);
  }
  else if (attr)
  {
    cupsdLogMessage(CUPSD_LOG_DEBUG,
                    "add_job: requesting-user-name=\"%s\"",
                    attr->values[0].string.text);

    cupsdSetString(&job->username, attr->values[0].string.text);
  }
  else
    cupsdSetString(&job->username, "anonymous");

  if (!attr)
    ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_NAME,
                 "job-originating-user-name", NULL, job->username);
  else
  {
    ippSetGroupTag(job->attrs, &attr, IPP_TAG_JOB);
    ippSetName(job->attrs, &attr, "job-originating-user-name");
  }

  if (con->username[0] || auth_info)
  {
    save_auth_info(con, job, auth_info);

   /*
    * Remove the auth-info attribute from the attribute data...
    */

    if (auth_info)
      ippDeleteAttribute(job->attrs, auth_info);
  }

  if ((attr = ippFindAttribute(con->request, "job-name", IPP_TAG_NAME)) != NULL)
    cupsdSetString(&(job->name), attr->values[0].string.text);

  if ((attr = ippFindAttribute(job->attrs, "job-originating-host-name",
                               IPP_TAG_ZERO)) != NULL)
  {
   /*
    * Request contains a job-originating-host-name attribute; validate it...
    */

    if (attr->value_tag != IPP_TAG_NAME ||
        attr->num_values != 1 ||
        strcmp(con->http->hostname, "localhost"))
    {
     /*
      * Can't override the value if we aren't connected via localhost.
      * Also, we can only have 1 value and it must be a name value.
      */

      ippDeleteAttribute(job->attrs, attr);
      ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_NAME, "job-originating-host-name", NULL, con->http->hostname);
    }
    else
      ippSetGroupTag(job->attrs, &attr, IPP_TAG_JOB);
  }
  else
  {
   /*
    * No job-originating-host-name attribute, so use the hostname from
    * the connection...
    */

    ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_NAME,
        	 "job-originating-host-name", NULL, con->http->hostname);
  }

  ippAddOutOfBand(job->attrs, IPP_TAG_JOB, IPP_TAG_NOVALUE, "date-time-at-completed");
  ippAddDate(job->attrs, IPP_TAG_JOB, "date-time-at-creation", ippTimeToDate(time(NULL)));
  ippAddOutOfBand(job->attrs, IPP_TAG_JOB, IPP_TAG_NOVALUE, "date-time-at-processing");
  ippAddOutOfBand(job->attrs, IPP_TAG_JOB, IPP_TAG_NOVALUE, "time-at-completed");
  ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_INTEGER, "time-at-creation", time(NULL));
  ippAddOutOfBand(job->attrs, IPP_TAG_JOB, IPP_TAG_NOVALUE, "time-at-processing");

 /*
  * Add remaining job attributes...
  */

  ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_INTEGER, "job-id", job->id);
  job->state = ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_ENUM,
                             "job-state", IPP_JOB_STOPPED);
  job->state_value = (ipp_jstate_t)job->state->values[0].integer;
  job->reasons = ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_KEYWORD,
                              "job-state-reasons", NULL, "job-incoming");
  job->impressions = ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_INTEGER, "job-impressions-completed", 0);
  job->sheets = ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_INTEGER,
                              "job-media-sheets-completed", 0);
  ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_URI, "job-printer-uri", NULL,
               printer->uri);

  if ((attr = ippFindAttribute(job->attrs, "job-k-octets", IPP_TAG_INTEGER)) != NULL)
    attr->values[0].integer = 0;
  else
    ippAddInteger(job->attrs, IPP_TAG_JOB, IPP_TAG_INTEGER, "job-k-octets", 0);

  if ((attr = ippFindAttribute(job->attrs, "job-hold-until",
                               IPP_TAG_KEYWORD)) == NULL)
    attr = ippFindAttribute(job->attrs, "job-hold-until", IPP_TAG_NAME);
  if (!attr)
  {
    if ((val = cupsGetOption("job-hold-until", printer->num_options,
                             printer->options)) == NULL)
      val = "no-hold";

    attr = ippAddString(job->attrs, IPP_TAG_JOB, IPP_TAG_KEYWORD,
                        "job-hold-until", NULL, val);
  }

  if (printer->holding_new_jobs)
  {
   /*
    * Hold all new jobs on this printer...
    */

    if (attr && strcmp(attr->values[0].string.text, "no-hold"))
      cupsdSetJobHoldUntil(job, ippGetString(attr, 0, NULL), 0);
    else
      cupsdSetJobHoldUntil(job, "indefinite", 0);

    job->state->values[0].integer = IPP_JOB_HELD;
    job->state_value              = IPP_JOB_HELD;

    ippSetString(job->attrs, &job->reasons, 0, "job-held-on-create");
  }
  else if (attr && strcmp(attr->values[0].string.text, "no-hold"))
  {
   /*
    * Hold job until specified time...
    */

    cupsdSetJobHoldUntil(job, attr->values[0].string.text, 0);

    job->state->values[0].integer = IPP_JOB_HELD;
    job->state_value              = IPP_JOB_HELD;

    ippSetString(job->attrs, &job->reasons, 0, "job-hold-until-specified");
  }
  else if (job->attrs->request.op.operation_id == IPP_CREATE_JOB)
  {
    job->hold_until               = time(NULL) + MultipleOperationTimeout;
    job->state->values[0].integer = IPP_JOB_HELD;
    job->state_value              = IPP_JOB_HELD;
  }
  else
  {
    job->state->values[0].integer = IPP_JOB_PENDING;
    job->state_value              = IPP_JOB_PENDING;

    ippSetString(job->attrs, &job->reasons, 0, "none");
  }

  if (!(printer->type & CUPS_PRINTER_REMOTE) || Classification)
  {
   /*
    * Add job sheets options...
    */

    if ((attr = ippFindAttribute(job->attrs, "job-sheets",
                                 IPP_TAG_ZERO)) == NULL)
    {
      cupsdLogMessage(CUPSD_LOG_DEBUG,
                      "Adding default job-sheets values \"%s,%s\"...",
                      printer->job_sheets[0], printer->job_sheets[1]);

      attr = ippAddStrings(job->attrs, IPP_TAG_JOB, IPP_TAG_NAME, "job-sheets",
                           2, NULL, NULL);
      ippSetString(job->attrs, &attr, 0, printer->job_sheets[0]);
      ippSetString(job->attrs, &attr, 1, printer->job_sheets[1]);
    }

    job->job_sheets = attr;

   /*
    * Enforce classification level if set...
    */

    if (Classification)
    {
      cupsdLogMessage(CUPSD_LOG_INFO,
                      "Classification=\"%s\", ClassifyOverride=%d",
                      Classification ? Classification : "(null)",
		      ClassifyOverride);

      if (ClassifyOverride)
      {
        if (!strcmp(attr->values[0].string.text, "none") &&
	    (attr->num_values == 1 ||
	     !strcmp(attr->values[1].string.text, "none")))
        {
	 /*
          * Force the leading banner to have the classification on it...
	  */

          ippSetString(job->attrs, &attr, 0, Classification);

	  cupsdLogJob(job, CUPSD_LOG_NOTICE, "CLASSIFICATION FORCED "
	                		     "job-sheets=\"%s,none\", "
					     "job-originating-user-name=\"%s\"",
	              Classification, job->username);
	}
	else if (attr->num_values == 2 &&
	         strcmp(attr->values[0].string.text,
		        attr->values[1].string.text) &&
		 strcmp(attr->values[0].string.text, "none") &&
		 strcmp(attr->values[1].string.text, "none"))
        {
	 /*
	  * Can't put two different security markings on the same document!
	  */

          ippSetString(job->attrs, &attr, 1, attr->values[0].string.text);

	  cupsdLogJob(job, CUPSD_LOG_NOTICE, "CLASSIFICATION FORCED "
	                		     "job-sheets=\"%s,%s\", "
					     "job-originating-user-name=\"%s\"",
		      attr->values[0].string.text,
		      attr->values[1].string.text, job->username);
	}
	else if (strcmp(attr->values[0].string.text, Classification) &&
	         strcmp(attr->values[0].string.text, "none") &&
		 (attr->num_values == 1 ||
	          (strcmp(attr->values[1].string.text, Classification) &&
	           strcmp(attr->values[1].string.text, "none"))))
        {
	  if (attr->num_values == 1)
            cupsdLogJob(job, CUPSD_LOG_NOTICE,
			"CLASSIFICATION OVERRIDDEN "
			"job-sheets=\"%s\", "
			"job-originating-user-name=\"%s\"",
	                attr->values[0].string.text, job->username);
          else
            cupsdLogJob(job, CUPSD_LOG_NOTICE,
			"CLASSIFICATION OVERRIDDEN "
			"job-sheets=\"%s,%s\",fffff "
			"job-originating-user-name=\"%s\"",
			attr->values[0].string.text,
			attr->values[1].string.text, job->username);
        }
      }
      else if (strcmp(attr->values[0].string.text, Classification) &&
               (attr->num_values == 1 ||
	       strcmp(attr->values[1].string.text, Classification)))
      {
       /*
        * Force the banner to have the classification on it...
	*/

        if (attr->num_values > 1 &&
	    !strcmp(attr->values[0].string.text, attr->values[1].string.text))
	{
          ippSetString(job->attrs, &attr, 0, Classification);
          ippSetString(job->attrs, &attr, 1, Classification);
	}
        else
	{
          if (attr->num_values == 1 ||
	      strcmp(attr->values[0].string.text, "none"))
            ippSetString(job->attrs, &attr, 0, Classification);

          if (attr->num_values > 1 &&
	      strcmp(attr->values[1].string.text, "none"))
	    ippSetString(job->attrs, &attr, 1, Classification);
        }

        if (attr->num_values > 1)
	  cupsdLogJob(job, CUPSD_LOG_NOTICE,
		      "CLASSIFICATION FORCED "
		      "job-sheets=\"%s,%s\", "
		      "job-originating-user-name=\"%s\"",
		      attr->values[0].string.text,
		      attr->values[1].string.text, job->username);
        else
	  cupsdLogJob(job, CUPSD_LOG_NOTICE,
		      "CLASSIFICATION FORCED "
		      "job-sheets=\"%s\", "
		      "job-originating-user-name=\"%s\"",
		      Classification, job->username);
      }
    }

   /*
    * See if we need to add the starting sheet...
    */

    if (!(printer->type & CUPS_PRINTER_REMOTE))
    {
      cupsdLogJob(job, CUPSD_LOG_INFO, "Adding start banner page \"%s\".",
		  attr->values[0].string.text);

      if ((kbytes = copy_banner(con, job, attr->values[0].string.text)) < 0)
      {
        cupsdSetJobState(job, IPP_JOB_ABORTED, CUPSD_JOB_PURGE,
	                 "Aborting job because the start banner could not be "
			 "copied.");
        return (NULL);
      }

      cupsdUpdateQuota(printer, job->username, 0, kbytes);
    }
  }
  else if ((attr = ippFindAttribute(job->attrs, "job-sheets",
                                    IPP_TAG_ZERO)) != NULL)
    job->job_sheets = attr;

 /*
  * Fill in the response info...
  */

  httpAssembleURIf(HTTP_URI_CODING_ALL, job_uri, sizeof(job_uri), "ipp", NULL,
                   con->clientname, con->clientport, "/jobs/%d", job->id);
  ippAddString(con->response, IPP_TAG_JOB, IPP_TAG_URI, "job-uri", NULL,
               job_uri);

  ippAddInteger(con->response, IPP_TAG_JOB, IPP_TAG_INTEGER, "job-id", job->id);

  ippAddInteger(con->response, IPP_TAG_JOB, IPP_TAG_ENUM, "job-state",
                job->state_value);
  ippAddString(con->response, IPP_TAG_JOB, IPP_TAG_TEXT, "job-state-message", NULL, "");
  ippAddString(con->response, IPP_TAG_JOB, IPP_TAG_KEYWORD, "job-state-reasons",
               NULL, job->reasons->values[0].string.text);

  con->response->request.status.status_code = IPP_OK;

 /*
  * Add any job subscriptions...
  */

  add_job_subscriptions(con, job);

 /*
  * Set all but the first two attributes to the job attributes group...
  */

  for (attr = job->attrs->attrs->next->next; attr; attr = attr->next)
    attr->group_tag = IPP_TAG_JOB;

 /*
  * Fire the "job created" event...
  */

  cupsdAddEvent(CUPSD_EVENT_JOB_CREATED, printer, job, "Job created.");

 /*
  * Return the new job...
  */

  return (job);
}