Example #1
0
static gboolean
process_frame(frame_data *frame, column_info *cinfo, ph_stats_t* ps)
{
    epan_dissect_t			edt;
    union wtap_pseudo_header	phdr;
    guint8				pd[WTAP_MAX_PACKET_SIZE];
    double				cur_time;

    /* Load the frame from the capture file */
    if (!cf_read_frame_r(&cfile, frame, &phdr, pd))
        return FALSE;	/* failure */

    /* Dissect the frame   tree  not visible */
    epan_dissect_init(&edt, TRUE, FALSE);
    /* Don't fake protocols. We need them for the protocol hierarchy */
    epan_dissect_fake_protocols(&edt, FALSE);
    epan_dissect_run(&edt, &phdr, pd, frame, cinfo);

    /* Get stats from this protocol tree */
    process_tree(edt.tree, ps, frame->pkt_len);

    /* Update times */
    cur_time = nstime_to_sec(&frame->abs_ts);
    if (cur_time < ps->first_time) {
        ps->first_time = cur_time;
    }
    if (cur_time > ps->last_time) {
        ps->last_time = cur_time;
    }

    /* Free our memory. */
    epan_dissect_cleanup(&edt);

    return TRUE;	/* success */
}
Example #2
0
QString &PacketList::getFilterFromRowAndColumn()
{
    frame_data *fdata;
    QString &filter = *new QString();
    int row = currentIndex().row();

    if (!cap_file_ || !packet_list_model_ || ctx_column_ < 0 || ctx_column_ >= cap_file_->cinfo.num_cols) return filter;

    fdata = packet_list_model_->getRowFdata(row);

    if (fdata != NULL) {
        epan_dissect_t edt;

        if (!cf_read_record(cap_file_, fdata))
            return filter; /* error reading the record */
        /* proto tree, visible. We need a proto tree if there's custom columns */
        epan_dissect_init(&edt, cap_file_->epan, have_custom_cols(&cap_file_->cinfo), FALSE);
        col_custom_prime_edt(&edt, &cap_file_->cinfo);

        epan_dissect_run(&edt, cap_file_->cd_t, &cap_file_->phdr, frame_tvbuff_new_buffer(fdata, &cap_file_->buf), fdata, &cap_file_->cinfo);
        epan_dissect_fill_in_columns(&edt, TRUE, TRUE);

        if ((cap_file_->cinfo.col_custom_occurrence[ctx_column_]) ||
            (strchr (cap_file_->cinfo.col_expr.col_expr_val[ctx_column_], ',') == NULL))
        {
            /* Only construct the filter when a single occurrence is displayed
             * otherwise we might end up with a filter like "ip.proto==1,6".
             *
             * Or do we want to be able to filter on multiple occurrences so that
             * the filter might be calculated as "ip.proto==1 && ip.proto==6"
             * instead?
             */
            if (strlen(cap_file_->cinfo.col_expr.col_expr[ctx_column_]) != 0 &&
                strlen(cap_file_->cinfo.col_expr.col_expr_val[ctx_column_]) != 0) {
                /* leak a little but safer than ep_ here */
                if (cap_file_->cinfo.col_fmt[ctx_column_] == COL_CUSTOM) {
                    header_field_info *hfi = proto_registrar_get_byname(cap_file_->cinfo.col_custom_field[ctx_column_]);
                    if (hfi->parent == -1) {
                        /* Protocol only */
                        filter.append(cap_file_->cinfo.col_expr.col_expr[ctx_column_]);
                    } else if (hfi->type == FT_STRING) {
                        /* Custom string, add quotes */
                        filter.append(QString("%1 == \"%2\"")
                                      .arg(cap_file_->cinfo.col_expr.col_expr[ctx_column_])
                                      .arg(cap_file_->cinfo.col_expr.col_expr_val[ctx_column_]));
                    }
                }
                if (filter.isEmpty()) {
                    filter.append(QString("%1 == %2")
                                  .arg(cap_file_->cinfo.col_expr.col_expr[ctx_column_])
                                  .arg(cap_file_->cinfo.col_expr.col_expr_val[ctx_column_]));
                }
            }
        }

        epan_dissect_cleanup(&edt);
    }

    return filter;
}
Example #3
0
static gboolean
finfo_window_refresh(struct FieldinfoWinData *DataPtr)
{
	field_info *old_finfo = DataPtr->finfo;
	field_info *finfo;
	epan_dissect_t edt;

	const guint8 *data;
	GtkWidget *byte_view;
	gchar label_str[ITEM_LABEL_LENGTH];

	/* always update byteviews */
	if (DataPtr->bv && (byte_view = get_notebook_bv_ptr(DataPtr->bv))) {
		int pos_inside = DataPtr->pd_offset - DataPtr->start_offset - old_finfo->start;

		if (pos_inside < 0 || pos_inside >= old_finfo->length)
			pos_inside = -1;

		data = DataPtr->pd + DataPtr->start_offset + old_finfo->start;
		packet_hex_editor_print(byte_view, data, DataPtr->frame, pos_inside, DataPtr->pd_bitoffset, old_finfo->length);
	}

	if (DataPtr->app_bv && (byte_view = get_notebook_bv_ptr(DataPtr->app_bv))) {
		int pos_inside = DataPtr->pd_offset - DataPtr->start_offset - old_finfo->appendix_start;

		if (pos_inside < 0 || pos_inside >= old_finfo->appendix_length)
			pos_inside = -1;

		data = DataPtr->pd + DataPtr->start_offset + old_finfo->appendix_start;
		packet_hex_editor_print(byte_view, data, DataPtr->frame, pos_inside, DataPtr->pd_bitoffset, old_finfo->appendix_length);
	}

	/* redisect */
	epan_dissect_init(&edt, DataPtr->epan, TRUE, TRUE);
	/* Makes any sense?
	if (old_finfo->hfinfo)
		proto_tree_prime_hfid(edt.tree, old_finfo->hfinfo->id);
	*/
	epan_dissect_run(&edt, &DataPtr->phdr, frame_tvbuff_new(DataPtr->frame, DataPtr->pd), DataPtr->frame, NULL);

	/* Try to find finfo which looks like old_finfo.
	 * We might not found one, if protocol requires specific magic values, etc... */
	if (!(finfo = proto_finfo_find(edt.tree, old_finfo))) {
		epan_dissect_cleanup(&edt);
		gtk_entry_set_text(GTK_ENTRY(DataPtr->repr), "[finfo not found, try with another value, or restore old. If you think it is bug, fill bugreport]");
		return FALSE;
	}

	/* XXX, update fvalue_edit, e.g. when hexedit was changed */

	if (finfo->rep == NULL) {
		proto_item_fill_label(finfo, label_str);
		gtk_entry_set_text(GTK_ENTRY(DataPtr->repr), label_str);
	} else
		gtk_entry_set_text(GTK_ENTRY(DataPtr->repr), finfo->rep->representation);

	epan_dissect_cleanup(&edt);
	return TRUE;
}
Example #4
0
static void
redissect_packet_window(gpointer object, gpointer user_data _U_)
{
	struct PacketWinData *DataPtr = (struct PacketWinData *)object;
	char *title;

	/* XXX, can be optimized? */
	proto_tree_draw(NULL, DataPtr->tree_view);
	epan_dissect_cleanup(&(DataPtr->edt));
	epan_dissect_init(&(DataPtr->edt), DataPtr->epan, TRUE, TRUE);
	epan_dissect_run(&(DataPtr->edt), &DataPtr->phdr, frame_tvbuff_new(DataPtr->frame, DataPtr->pd), DataPtr->frame, NULL);
	add_byte_views(&(DataPtr->edt), DataPtr->tree_view, DataPtr->bv_nb_ptr);
	proto_tree_draw(DataPtr->edt.tree, DataPtr->tree_view);

	/* update the window title */
	title = create_packet_window_title();
	gtk_window_set_title(GTK_WINDOW(DataPtr->main), title);
	g_free(title);
}
void FrameInformation::loadFrameTree()
{
    if ( ! fi_ || ! cap_file_ || !cap_file_->capFile())
        return;

    if (!cf_read_record(cap_file_->capFile(), fi_))
        return;

    struct wtap_pkthdr phdr_ = cap_file_->capFile()->phdr;
    packet_data_ = (guint8 *) g_memdup(ws_buffer_start_ptr(&(cap_file_->capFile()->buf)), fi_->cap_len);

    /* proto tree, visible. We need a proto tree if there's custom columns */
    epan_dissect_init(&edt_, cap_file_->capFile()->epan, TRUE, TRUE);
    col_custom_prime_edt(&edt_, &(cap_file_->capFile()->cinfo));

    epan_dissect_run(&edt_, cap_file_->capFile()->cd_t, &phdr_,
                     frame_tvbuff_new(&cap_file_->capFile()->provider, fi_, packet_data_),
                     fi_, &(cap_file_->capFile()->cinfo));
    epan_dissect_fill_in_columns(&edt_, TRUE, TRUE);
}
static gboolean
process_record(capture_file *cf, frame_data *frame, column_info *cinfo, ph_stats_t* ps)
{
	epan_dissect_t			edt;
	struct wtap_pkthdr              phdr;
	Buffer				buf;
	double				cur_time;

	wtap_phdr_init(&phdr);

	/* Load the record from the capture file */
	ws_buffer_init(&buf, 1500);
	if (!cf_read_record_r(cf, frame, &phdr, &buf))
		return FALSE;	/* failure */

	/* Dissect the record   tree  not visible */
	epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
	/* Don't fake protocols. We need them for the protocol hierarchy */
	epan_dissect_fake_protocols(&edt, FALSE);
	epan_dissect_run(&edt, cf->cd_t, &phdr, frame_tvbuff_new_buffer(frame, &buf), frame, cinfo);

	/* Get stats from this protocol tree */
	process_tree(edt.tree, ps, frame->pkt_len);

	if (frame->flags.has_ts) {
		/* Update times */
		cur_time = nstime_to_sec(&frame->abs_ts);
		if (cur_time < ps->first_time)
			ps->first_time = cur_time;
		if (cur_time > ps->last_time)
			ps->last_time = cur_time;
	}

	/* Free our memory. */
	epan_dissect_cleanup(&edt);
	wtap_phdr_cleanup(&phdr);
	ws_buffer_free(&buf);

	return TRUE;	/* success */
}
Example #7
0
    static gboolean
process_record(capture_file *cf, frame_data *frame, column_info *cinfo,
               wtap_rec *rec, Buffer *buf, ph_stats_t* ps)
{
    epan_dissect_t	edt;
    double		cur_time;

    /* Load the record from the capture file */
    if (!cf_read_record(cf, frame, rec, buf))
        return FALSE;	/* failure */

    /* Dissect the record   tree  not visible */
    epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
    /* Don't fake protocols. We need them for the protocol hierarchy */
    epan_dissect_fake_protocols(&edt, FALSE);
    epan_dissect_run(&edt, cf->cd_t, rec,
                     frame_tvbuff_new_buffer(&cf->provider, frame, buf),
                     frame, cinfo);

    /* Get stats from this protocol tree */
    process_tree(edt.tree, ps);

    if (frame->has_ts) {
        /* Update times */
        cur_time = nstime_to_sec(&frame->abs_ts);
        if (cur_time < ps->first_time)
            ps->first_time = cur_time;
        if (cur_time > ps->last_time)
            ps->last_time = cur_time;
    }

    /* Free our memory. */
    epan_dissect_cleanup(&edt);

    return TRUE;	/* success */
}
Example #8
0
/**
 * Given a handle on a capture file, and an offset within that file,
 * this function will read a packet and decide if it matches the display
 * filter.  If it does, it calls proto_tree_get_fields() to read specific fields
 * into stdata.
 * 
 * @return passed a boolean describing whether the packet matched the filter.
 */
gboolean process_packet(capture_file *cf, gint64 offset, st_data_t *stdata)
{
  frame_data fdata;
  epan_dissect_t edt;
  gboolean passed;

  const struct wtap_pkthdr *whdr = wtap_phdr(cf->wth);
  union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
  const guchar *pd = wtap_buf_ptr(cf->wth);

  /* Count this packet.
     NB: the frame dissector uses this to determine frame.number
  */
  cf->count++;

  /**
   * Initialize dissector tree
   */
  epan_dissect_init(&edt, TRUE, TRUE);

  frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);

  frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
                                &first_ts, &prev_dis_ts, &prev_cap_ts);

  passed = TRUE;

  // AB: prime the epan_dissect_t with the dfilter.
  if(cf->rfcode)
    {
      epan_dissect_prime_dfilter(&edt, cf->rfcode);
    }

  tap_queue_init(&edt);

  /**
   * Run the dissector on this packet
   */
  epan_dissect_run(&edt, pseudo_header, pd, &fdata, NULL);

  tap_push_tapped_queue(&edt);
  
  // AB: Run the read filter
  if(cf->rfcode)
    {
      passed = dfilter_apply_edt(cf->rfcode, &edt);
    }
  else
    {
      passed = TRUE;
    }

  if(passed)
    {
      frame_data_set_after_dissect(&fdata, &cum_bytes, &prev_dis_ts);

      // stdata could be NULL if we are just counting packets
      if(stdata != NULL)
        proto_tree_get_fields(stdata, &edt);
    }

  epan_dissect_cleanup(&edt);
  frame_data_cleanup(&fdata);

  return passed;
}
QVariant PacketListModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid())
        return QVariant();

    PacketListRecord *record = static_cast<PacketListRecord*>(index.internalPointer());
    if (!record)
        return QVariant();
    frame_data *fdata = record->getFdata();
    if (!fdata)
        return QVariant();

    switch (role) {
    case Qt::FontRole:
        return wsApp->monospaceFont();
    case Qt::TextAlignmentRole:
        switch(recent_get_column_xalign(index.column())) {
        case COLUMN_XALIGN_RIGHT:
            return Qt::AlignRight;
            break;
        case COLUMN_XALIGN_CENTER:
            return Qt::AlignCenter;
            break;
        case COLUMN_XALIGN_LEFT:
            return Qt::AlignLeft;
            break;
        case COLUMN_XALIGN_DEFAULT:
        default:
            if (right_justify_column(index.column(), cap_file_)) {
                return Qt::AlignRight;
            }
            break;
        }
        return Qt::AlignLeft;

    case Qt::BackgroundRole:
        const color_t *color;
        if (fdata->flags.ignored) {
            color = &prefs.gui_ignored_bg;
        } else if (fdata->flags.marked) {
            color = &prefs.gui_marked_bg;
        } else if (fdata->color_filter) {
            const color_filter_t *color_filter = (const color_filter_t *) fdata->color_filter;
            color = &color_filter->bg_color;
        } else {
            return QVariant();
        }
//        g_log(NULL, G_LOG_LEVEL_DEBUG, "i: %d m: %d cf: %p bg: %d %d %d", fdata->flags.ignored, fdata->flags.marked, fdata->color_filter, color->red, color->green, color->blue);
        return QColor(color->red >> 8, color->green >> 8, color->blue >> 8);
    case Qt::ForegroundRole:
        if (fdata->flags.ignored) {
            color = &prefs.gui_ignored_fg;
        } else if (fdata->flags.marked) {
            color = &prefs.gui_marked_fg;
        } else if (fdata->color_filter) {
            const color_filter_t *color_filter = (const color_filter_t *) fdata->color_filter;
            color = &color_filter->fg_color;
        } else {
            return QVariant();
        }
        return QColor(color->red >> 8, color->green >> 8, color->blue >> 8);
    case Qt::DisplayRole:
        // Need packet data -- fall through
        break;
    default:
        return QVariant();
    }

    int col_num = index.column();
//    g_log(NULL, G_LOG_LEVEL_DEBUG, "showing col %d", col_num);

    if (!cap_file_ || col_num > cap_file_->cinfo.num_cols)
        return QVariant();

    epan_dissect_t edt;
    column_info *cinfo;
    gboolean create_proto_tree;
    struct wtap_pkthdr phdr; /* Packet header */
    Buffer buf;  /* Packet data */
    gboolean dissect_columns = TRUE; // XXX - Currently only a placeholder

    if (dissect_columns && cap_file_)
        cinfo = &cap_file_->cinfo;
    else
        cinfo = NULL;

    buffer_init(&buf, 1500);
    if (!cap_file_ || !cf_read_frame_r(cap_file_, fdata, &phdr, &buf)) {
        /*
         * Error reading the frame.
         *
         * Don't set the color filter for now (we might want
         * to colorize it in some fashion to warn that the
         * row couldn't be filled in or colorized), and
         * set the columns to placeholder values, except
         * for the Info column, where we'll put in an
         * error message.
         */
        if (dissect_columns) {
            col_fill_in_error(cinfo, fdata, FALSE, FALSE /* fill_fd_columns */);

            //            for(gint col = 0; col < cinfo->num_cols; ++col) {
            //                /* Skip columns based on frame_data because we already store those. */
            //                if (!col_based_on_frame_data(cinfo, col))
            //                    packet_list_change_record(packet_list, record->physical_pos, col, cinfo);
            //            }
            //            record->columnized = TRUE;
        }
        if (enable_color_) {
            fdata->color_filter = NULL;
            //            record->colorized = TRUE;
        }
        buffer_free(&buf);
        return QVariant();	/* error reading the frame */
    }

    create_proto_tree = (color_filters_used() && enable_color_) ||
                        (have_custom_cols(cinfo) && dissect_columns);

    epan_dissect_init(&edt, cap_file_->epan,
                      create_proto_tree,
                      FALSE /* proto_tree_visible */);

    if (enable_color_)
        color_filters_prime_edt(&edt);
    if (dissect_columns)
        col_custom_prime_edt(&edt, cinfo);

    epan_dissect_run(&edt, &phdr, frame_tvbuff_new_buffer(fdata, &buf), fdata, cinfo);

    if (enable_color_)
        fdata->color_filter = color_filters_colorize_packet(&edt);

    if (dissect_columns) {
        /* "Stringify" non frame_data vals */
        epan_dissect_fill_in_columns(&edt, FALSE, FALSE /* fill_fd_columns */);

        //            for(col = 0; col < cinfo->num_cols; ++col) {
        //                    /* Skip columns based on frame_data because we already store those. */
        //                    if (!col_based_on_frame_data(cinfo, col))
        //                            packet_list_change_record(packet_list, record->physical_pos, col, cinfo);
        //            }
//        g_log(NULL, G_LOG_LEVEL_DEBUG, "d_c %d: %s", col_num, cinfo->col_data[col_num]);
    }

    //    if (dissect_columns)
    //            record->columnized = TRUE;
    //    if (enable_color_)
    //            record->colorized = TRUE;

    epan_dissect_cleanup(&edt);
    buffer_free(&buf);

    switch (role) {
    case Qt::DisplayRole:
        return record->data(col_num, cinfo);
        break;
    default:
        break;
    }
    return QVariant();
}
Example #10
0
/**
	Does the dissection of one packet.

	@param in_data raw binary data of the packet to be processed
	@param mode specifies the debug mode
	@return dissected packet payload in a form of hf_datanode tree if everything went OK, NULL otherwise
*/
extern "C" __declspec(dllexport) hf_datanode *hf_dissect_one_packet(unsigned char *in_data, int mode)
{
	epan_dissect_t *pedt;
	frame_data *fdata = g_slice_new(frame_data);
	int count = 0;
	nstime_t elapsed_time;

	elapsed_time.secs = 0;
	elapsed_time.nsecs = 100;
	name_number = 1;

	if(mode==DEBUG_MODE) {
		printf("DEBUG mode on.\n");
		debug_mode = mode;
	}

	if(fdata==NULL)
		return NULL;

	// create a wiretap header wrapper around the data
	wtap *wth;
	wth = hf_create_fakewth(in_data);

	// this should happen only if we run out of memory!
	if(wth==NULL)
		return NULL;

	// initilaize the values for fake time measurement
	hf_init_timestructs();

	// disecton process begins
	// initialiation phase...set up the frame and dissection structures
	frame_data_init(fdata,count,wtap_phdr(wth),wth->data_offset,cum_bytes);
	pedt = epan_dissect_new(TRUE,TRUE);
	frame_data_set_before_dissect(fdata,&(elapsed_time),&first_ts,&prev_dis_ts,&prev_cap_ts);

	// the core of the dissection
	epan_dissect_run(pedt,wtap_pseudoheader(wth),wtap_buf_ptr(wth),fdata,NULL);

	// cleanup after the dissection
	frame_data_set_after_dissect(fdata,&cum_bytes,&prev_dis_ts);

	// transform the dissected data to the form of a hf_datanode tree
	hf_datanode * returned_node = hf_transform_ptree_to_datamodel(pedt);

	// free the one-packet dissection structure epan_dissect_t
	epan_dissect_free(pedt);
	// disecton process ends 

	// deallocation phase
	g_slice_free(frame_data, fdata);
	buffer_free(wth->frame_buffer);
	g_free(wth->frame_buffer);
	g_free(wth->capture.pcap);
	g_free(wth);

	hf_datanode *returned_payload = hf_return_only_payload(returned_node);

	// fragmented packet or dissection failure should be noted
	if(mode==DEBUG_MODE) {
		if(!returned_payload)
			fprintf(stderr, "Dissection returned NULL - either fragmented message or protocol unknown.\n");
	}

	// print the part that will be returned from the function after the duplicates were skipped etc.
	if(debug_mode==DEBUG_MODE) {
		hf_print_datamodel(returned_payload,1,1);
	}

	// if we were in debug mode, switch it off
	debug_mode = NODEBUG_MODE;

	return returned_payload;
}
void PacketListRecord::dissect(capture_file *cap_file, bool dissect_color)
{
    // packet_list_store.c:packet_list_dissect_and_cache_record
    epan_dissect_t edt;
    column_info *cinfo = NULL;
    gboolean create_proto_tree;
    struct wtap_pkthdr phdr; /* Packet header */
    Buffer buf; /* Packet data */
    gboolean dissect_columns = col_text_.isEmpty() || data_ver_ != col_data_ver_;

    if (!cap_file) {
        return;
    }

    memset(&phdr, 0, sizeof(struct wtap_pkthdr));

    if (dissect_columns) {
        cinfo = &cap_file->cinfo;
    }

    ws_buffer_init(&buf, 1500);
    if (!cf_read_record_r(cap_file, fdata_, &phdr, &buf)) {
        /*
         * Error reading the record.
         *
         * Don't set the color filter for now (we might want
         * to colorize it in some fashion to warn that the
         * row couldn't be filled in or colorized), and
         * set the columns to placeholder values, except
         * for the Info column, where we'll put in an
         * error message.
         */
        if (dissect_columns) {
            col_fill_in_error(cinfo, fdata_, FALSE, FALSE /* fill_fd_columns */);

            cacheColumnStrings(cinfo);
        }
        if (dissect_color) {
            fdata_->color_filter = NULL;
            colorized_ = true;
        }
        ws_buffer_free(&buf);
        return;    /* error reading the record */
    }

    create_proto_tree = (dissect_color && color_filters_used()) ||
                        (dissect_columns && have_custom_cols(cinfo));

    epan_dissect_init(&edt, cap_file->epan,
                      create_proto_tree,
                      FALSE /* proto_tree_visible */);

    /* Re-color when the coloring rules are changed via the UI. */
    if (dissect_color) {
        color_filters_prime_edt(&edt);
        fdata_->flags.need_colorize = 1;
    }
    if (dissect_columns)
        col_custom_prime_edt(&edt, cinfo);

    /*
     * XXX - need to catch an OutOfMemoryError exception and
     * attempt to recover from it.
     */
    epan_dissect_run(&edt, cap_file->cd_t, &phdr, frame_tvbuff_new_buffer(fdata_, &buf), fdata_, cinfo);

    if (dissect_columns) {
        /* "Stringify" non frame_data vals */
        epan_dissect_fill_in_columns(&edt, FALSE, FALSE /* fill_fd_columns */);
        cacheColumnStrings(cinfo);
    }

    if (dissect_color) {
        colorized_ = true;
    }
    data_ver_ = col_data_ver_;

    packet_info *pi = &edt.pi;
    conv_ = find_conversation(pi->num, &pi->src, &pi->dst, pi->ptype,
                              pi->srcport, pi->destport, 0);

    epan_dissect_cleanup(&edt);
    ws_buffer_free(&buf);
}
Iax2AnalysisDialog::Iax2AnalysisDialog(QWidget &parent, CaptureFile &cf) :
    WiresharkDialog(parent, cf),
    ui(new Ui::Iax2AnalysisDialog),
    port_src_fwd_(0),
    port_dst_fwd_(0),
    port_src_rev_(0),
    port_dst_rev_(0)
{
    ui->setupUi(this);
    setWindowSubtitle(tr("IAX2 Stream Analysis"));

    // XXX Use recent settings instead
    resize(parent.width() * 4 / 5, parent.height() * 4 / 5);
    ui->progressFrame->hide();

    stream_ctx_menu_.addAction(ui->actionGoToPacket);
    stream_ctx_menu_.addAction(ui->actionNextProblem);
    stream_ctx_menu_.addSeparator();
    stream_ctx_menu_.addAction(ui->actionSaveAudio);
    stream_ctx_menu_.addAction(ui->actionSaveForwardAudio);
    stream_ctx_menu_.addAction(ui->actionSaveReverseAudio);
    stream_ctx_menu_.addSeparator();
    stream_ctx_menu_.addAction(ui->actionSaveCsv);
    stream_ctx_menu_.addAction(ui->actionSaveForwardCsv);
    stream_ctx_menu_.addAction(ui->actionSaveReverseCsv);
    stream_ctx_menu_.addSeparator();
    stream_ctx_menu_.addAction(ui->actionSaveGraph);
    ui->forwardTreeWidget->installEventFilter(this);
    ui->forwardTreeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->forwardTreeWidget, SIGNAL(customContextMenuRequested(QPoint)),
                SLOT(showStreamMenu(QPoint)));
    ui->reverseTreeWidget->installEventFilter(this);
    ui->reverseTreeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->reverseTreeWidget, SIGNAL(customContextMenuRequested(QPoint)),
                SLOT(showStreamMenu(QPoint)));
    connect(ui->streamGraph, SIGNAL(mousePress(QMouseEvent*)),
            this, SLOT(graphClicked(QMouseEvent*)));

    graph_ctx_menu_.addAction(ui->actionSaveGraph);

    QStringList header_labels;
    for (int i = 0; i < ui->forwardTreeWidget->columnCount(); i++) {
        header_labels << ui->forwardTreeWidget->headerItem()->text(i);
    }
    ui->reverseTreeWidget->setHeaderLabels(header_labels);

    memset(&src_fwd_, 0, sizeof(address));
    memset(&dst_fwd_, 0, sizeof(address));
    memset(&src_rev_, 0, sizeof(address));
    memset(&dst_rev_, 0, sizeof(address));

    QList<QCheckBox *> graph_cbs = QList<QCheckBox *>()
            << ui->fJitterCheckBox << ui->fDiffCheckBox
            << ui->rJitterCheckBox << ui->rDiffCheckBox;

    for (int i = 0; i < num_graphs_; i++) {
        QCPGraph *graph = ui->streamGraph->addGraph();
        graph->setPen(QPen(ColorUtils::graph_colors_[i]));
        graph->setName(graph_cbs[i]->text());
        graphs_ << graph;
        graph_cbs[i]->setChecked(true);
        graph_cbs[i]->setIcon(StockIcon::colorIcon(ColorUtils::graph_colors_[i], QPalette::Text));
    }
    ui->streamGraph->xAxis->setLabel("Arrival Time");
    ui->streamGraph->yAxis->setLabel("Value (ms)");

    // We keep our temp files open for the lifetime of the dialog. The GTK+
    // UI opens and closes at various points.
    QString tempname = QString("%1/wireshark_iax2_f").arg(QDir::tempPath());
    fwd_tempfile_ = new QTemporaryFile(tempname, this);
    fwd_tempfile_->open();
    tempname = QString("%1/wireshark_iax2_r").arg(QDir::tempPath());
    rev_tempfile_ = new QTemporaryFile(tempname, this);
    rev_tempfile_->open();

    if (fwd_tempfile_->error() != QFile::NoError || rev_tempfile_->error() != QFile::NoError) {
        err_str_ = tr("Unable to save RTP data.");
        ui->actionSaveAudio->setEnabled(false);
        ui->actionSaveForwardAudio->setEnabled(false);
        ui->actionSaveReverseAudio->setEnabled(false);
    }

    QMenu *save_menu = new QMenu();
    save_menu->addAction(ui->actionSaveAudio);
    save_menu->addAction(ui->actionSaveForwardAudio);
    save_menu->addAction(ui->actionSaveReverseAudio);
    save_menu->addSeparator();
    save_menu->addAction(ui->actionSaveCsv);
    save_menu->addAction(ui->actionSaveForwardCsv);
    save_menu->addAction(ui->actionSaveReverseCsv);
    save_menu->addSeparator();
    save_menu->addAction(ui->actionSaveGraph);
    ui->buttonBox->button(QDialogButtonBox::Save)->setMenu(save_menu);

    const gchar *filter_text = "iax2 && (ip || ipv6)";
    dfilter_t *sfcode;
    gchar *err_msg;

    if (!dfilter_compile(filter_text, &sfcode, &err_msg)) {
        QMessageBox::warning(this, tr("No IAX2 packets found"), QString("%1").arg(err_msg));
        g_free(err_msg);
        close();
    }

    if (!cap_file_.capFile() || !cap_file_.capFile()->current_frame) close();

    frame_data *fdata = cap_file_.capFile()->current_frame;

    if (!cf_read_record(cap_file_.capFile(), fdata)) close();

    epan_dissect_t edt;

    epan_dissect_init(&edt, cap_file_.capFile()->epan, TRUE, FALSE);
    epan_dissect_prime_dfilter(&edt, sfcode);
    epan_dissect_run(&edt, cap_file_.capFile()->cd_t, &cap_file_.capFile()->phdr,
                     frame_tvbuff_new_buffer(fdata, &cap_file_.capFile()->buf), fdata, NULL);

    // This shouldn't happen (the menu item should be disabled) but check anyway
    if (!dfilter_apply_edt(sfcode, &edt)) {
        epan_dissect_cleanup(&edt);
        dfilter_free(sfcode);
        err_str_ = tr("Please select an IAX2 packet");
        updateWidgets();
        return;
    }

    dfilter_free(sfcode);

    /* ok, it is a IAX2 frame, so let's get the ip and port values */
    COPY_ADDRESS(&(src_fwd_), &(edt.pi.src));
    COPY_ADDRESS(&(dst_fwd_), &(edt.pi.dst));
    port_src_fwd_ = edt.pi.srcport;
    port_dst_fwd_ = edt.pi.destport;

    /* assume the inverse ip/port combination for the reverse direction */
    COPY_ADDRESS(&(src_rev_), &(edt.pi.dst));
    COPY_ADDRESS(&(dst_rev_), &(edt.pi.src));
    port_src_rev_ = edt.pi.destport;
    port_dst_rev_ = edt.pi.srcport;

#if 0
    /* check if it is Voice or MiniPacket */
    bool ok;
    getIntFromProtoTree(edt.tree, "iax2", "iax2.call", &ok);
    if (!ok) {
        err_str_ = tr("Please select an IAX2 packet.");
        updateWidgets();
        return;
    }
#endif

#ifdef IAX2_RTP_STREAM_CHECK
    rtpstream_tapinfot tapinfo;

    /* Register the tap listener */
    memset(&tapinfo, 0, sizeof(rtpstream_tapinfot));
    tapinfo.tap_data = this;
    tapinfo.mode = TAP_ANALYSE;

//    register_tap_listener_rtp_stream(&tapinfo, NULL);
    /* Scan for RTP streams (redissect all packets) */
    rtpstream_scan(&tapinfo, cap_file_.capFile(), NULL);

    int num_streams = 0;
    GList *filtered_list = NULL;
    for (GList *strinfo_list = g_list_first(tapinfo.strinfo_list); strinfo_list; strinfo_list = g_list_next(strinfo_list)) {
        rtp_stream_info_t * strinfo = (rtp_stream_info_t*)(strinfo_list->data);
                 << address_to_qstring(&strinfo->dest_addr) << address_to_qstring(&src_rev_) << address_to_qstring(&dst_rev_);
        if (ADDRESSES_EQUAL(&(strinfo->src_addr), &(src_fwd_))
            && (strinfo->src_port == port_src_fwd_)
            && (ADDRESSES_EQUAL(&(strinfo->dest_addr), &(dst_fwd_)))
            && (strinfo->dest_port == port_dst_fwd_))
        {
            ++num_streams;
            filtered_list = g_list_prepend(filtered_list, strinfo);
        }

        if (ADDRESSES_EQUAL(&(strinfo->src_addr), &(src_rev_))
            && (strinfo->src_port == port_src_rev_)
            && (ADDRESSES_EQUAL(&(strinfo->dest_addr), &(dst_rev_)))
            && (strinfo->dest_port == port_dst_rev_))
        {
            ++num_streams;
            filtered_list = g_list_append(filtered_list, strinfo);
        }
    }
void PacketListRecord::dissect(capture_file *cap_file, bool dissect_color)
{
    // packet_list_store.c:packet_list_dissect_and_cache_record
    epan_dissect_t edt;
    column_info *cinfo = NULL;
    gboolean create_proto_tree;
    wtap_rec rec; /* Record metadata */
    Buffer buf;   /* Record data */

    if (!col_text_) col_text_ = new ColumnTextList;
    gboolean dissect_columns = col_text_->isEmpty() || data_ver_ != col_data_ver_;

    if (!cap_file) {
        return;
    }

    memset(&rec, 0, sizeof rec);

    if (dissect_columns) {
        cinfo = &cap_file->cinfo;
    }

    ws_buffer_init(&buf, 1500);
    if (!cf_read_record_r(cap_file, fdata_, &rec, &buf)) {
        /*
         * Error reading the record.
         *
         * Don't set the color filter for now (we might want
         * to colorize it in some fashion to warn that the
         * row couldn't be filled in or colorized), and
         * set the columns to placeholder values, except
         * for the Info column, where we'll put in an
         * error message.
         */
        if (dissect_columns) {
            col_fill_in_error(cinfo, fdata_, FALSE, FALSE /* fill_fd_columns */);

            cacheColumnStrings(cinfo);
        }
        if (dissect_color) {
            fdata_->color_filter = NULL;
            colorized_ = true;
        }
        ws_buffer_free(&buf);
        return;    /* error reading the record */
    }

    /*
     * Determine whether we need to create a protocol tree.
     * We do if:
     *
     *    we're going to apply a color filter to this packet;
     *
     *    we're need to fill in the columns and we have custom columns
     *    (which require field values, which currently requires that
     *    we build a protocol tree).
     *
     *    XXX - field extractors?  (Not done for GTK+....)
     */
    create_proto_tree = ((dissect_color && color_filters_used()) ||
                         (dissect_columns && (have_custom_cols(cinfo) ||
                                              have_field_extractors())));

    epan_dissect_init(&edt, cap_file->epan,
                      create_proto_tree,
                      FALSE /* proto_tree_visible */);

    /* Re-color when the coloring rules are changed via the UI. */
    if (dissect_color) {
        color_filters_prime_edt(&edt);
        fdata_->flags.need_colorize = 1;
    }
    if (dissect_columns)
        col_custom_prime_edt(&edt, cinfo);

    /*
     * XXX - need to catch an OutOfMemoryError exception and
     * attempt to recover from it.
     */
    epan_dissect_run(&edt, cap_file->cd_t, &rec,
                     frame_tvbuff_new_buffer(&cap_file->provider, fdata_, &buf),
                     fdata_, cinfo);

    if (dissect_columns) {
        /* "Stringify" non frame_data vals */
        epan_dissect_fill_in_columns(&edt, FALSE, FALSE /* fill_fd_columns */);
        cacheColumnStrings(cinfo);
    }

    if (dissect_color) {
        colorized_ = true;
    }
    data_ver_ = col_data_ver_;

    packet_info *pi = &edt.pi;
    conv_ = find_conversation_pinfo(pi, 0);

    epan_dissect_cleanup(&edt);
    ws_buffer_free(&buf);
}
Example #14
0
PacketDialog::PacketDialog(QWidget &parent, CaptureFile &cf, frame_data *fdata) :
    WiresharkDialog(parent, cf),
    ui(new Ui::PacketDialog),
    packet_data_(NULL)
{
    ui->setupUi(this);
    ui->hintLabel->setSmallText();

    // XXX Use recent settings instead
    resize(parent.width() * 4 / 5, parent.height() * 4 / 5);

    setWindowSubtitle(tr("Packet %1").arg(fdata->num));

    phdr_ = cap_file_.capFile()->phdr;
    packet_data_ = (guint8 *) g_memdup(ws_buffer_start_ptr(&(cap_file_.capFile()->buf)), fdata->cap_len);

    if (!cf_read_record(cap_file_.capFile(), fdata)) reject();
    /* proto tree, visible. We need a proto tree if there's custom columns */
    epan_dissect_init(&edt_, cap_file_.capFile()->epan, TRUE, TRUE);
    col_custom_prime_edt(&edt_, &(cap_file_.capFile()->cinfo));

    epan_dissect_run(&edt_, cap_file_.capFile()->cd_t, &phdr_,
                     frame_tvbuff_new(fdata, packet_data_),
                     fdata, &(cap_file_.capFile()->cinfo));
    epan_dissect_fill_in_columns(&edt_, TRUE, TRUE);

    proto_tree_ = new ProtoTree(ui->packetSplitter);
    proto_tree_->fillProtocolTree(edt_.tree);
    proto_tree_->expandAll();

    byte_view_tab_ = new ByteViewTab(ui->packetSplitter);
    byte_view_tab_->setCaptureFile(cap_file_.capFile());
    byte_view_tab_->clear();

    GSList *src_le;
    for (src_le = edt_.pi.data_src; src_le != NULL; src_le = src_le->next) {
        struct data_source *source;
        char* source_name;
        source = (struct data_source *)src_le->data;
        source_name = get_data_source_name(source);
        byte_view_tab_->addTab(source_name, get_data_source_tvb(source), edt_.tree, proto_tree_,
                               cap_file_.capFile()->current_frame->flags.encoding);
        wmem_free(NULL, source_name);
    }
    byte_view_tab_->setCurrentIndex(0);

    ui->packetSplitter->setStretchFactor(0, 5);
    ui->packetSplitter->setStretchFactor(1, 1);

    QStringList col_parts;
    for (int i = 0; i < cap_file_.capFile()->cinfo.num_cols; ++i) {
        // ElidedLabel doesn't support rich text / HTML
        col_parts << QString("%1: %2")
                     .arg(get_column_title(i))
                     .arg(cap_file_.capFile()->cinfo.col_data[i]);
    }
    col_info_ = col_parts.join(" " UTF8_MIDDLE_DOT " ");
    setHintText();

    connect(this, SIGNAL(monospaceFontChanged(QFont)),
            proto_tree_, SLOT(setMonospaceFont(QFont)));
    connect(this, SIGNAL(monospaceFontChanged(QFont)),
            byte_view_tab_, SLOT(setMonospaceFont(QFont)));

    connect(proto_tree_, SIGNAL(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)),
            byte_view_tab_, SLOT(protoTreeItemChanged(QTreeWidgetItem*)));
    connect(byte_view_tab_, SIGNAL(byteFieldHovered(QString&)),
            this, SLOT(setHintText(QString&)));
}
Example #15
0
static gboolean
process_packet(capture_file *cf, gint64 offset, const struct wtap_pkthdr *whdr,
               const guchar *pd)
{
  frame_data fdata;
  gboolean create_proto_tree;
  epan_dissect_t edt;
  gboolean passed;
  union wtap_pseudo_header pseudo_header;
  int i;

  if(whdr->len == 0)
  {
	  /* The user sends an empty packet when he wants to get output from us even if we don't currently have
	     packets to process. We spit out a line with the timestamp and the text "void"
	  */
	  printf("%lu %lu %lu void -\n", (unsigned long int)cf->count,
		  (unsigned long int)whdr->ts.secs,
		  (unsigned long int)whdr->ts.nsecs);

	  fflush(stdout);

	  return FALSE;
  }

  memset(&pseudo_header, 0, sizeof(pseudo_header));

  /* Count this packet. */
  cf->count++;

  /* If we're going to print packet information, or we're going to
     run a read filter, or we're going to process taps, set up to
     do a dissection and do so. */
  fill_in_fdata(&fdata, cf, whdr, offset);

  passed = TRUE;
  create_proto_tree = TRUE;

  /* The protocol tree will be "visible", i.e., printed, only if we're
     printing packet details, which is true if we're in verbose mode ("verbose"
     is true). */
  epan_dissect_init(&edt, create_proto_tree, FALSE);

  /* If we're running a read filter, prime the epan_dissect_t with that
     filter. */
  if (n_rfilters > 0) {
    for(i = 0; i < n_rfcodes; i++) {
      epan_dissect_prime_dfilter(&edt, rfcodes[i]);
    }
  }

  tap_queue_init(&edt);

  printf("%lu", (unsigned long int)cf->count);

  /* We only need the columns if we're printing packet info but we're
     *not* verbose; in verbose mode, we print the protocol tree, not
     the protocol summary. */
  epan_dissect_run(&edt, &pseudo_header, pd, &fdata, &cf->cinfo);

  tap_push_tapped_queue(&edt);

  for(i = 0; i < n_rfilters; i++) {
    /* Run the read filter if we have one. */
    if (rfcodes[i])
      passed = dfilter_apply_edt(rfcodes[i], &edt);
    else
      passed = TRUE;

    /* Print a one-line summary */
    printf(" %u", passed ? 1 : 0);
  }

  printf(" -\n");

  /* The ANSI C standard does not appear to *require* that a line-buffered
     stream be flushed to the host environment whenever a newline is
     written, it just says that, on such a stream, characters "are
     intended to be transmitted to or from the host environment as a
     block when a new-line character is encountered".

     The Visual C++ 6.0 C implementation doesn't do what is intended;
     even if you set a stream to be line-buffered, it still doesn't
     flush the buffer at the end of every line.

     So, if the "-l" flag was specified, we flush the standard output
     at the end of a packet.  This will do the right thing if we're
     printing packet summary lines, and, as we print the entire protocol
     tree for a single packet without waiting for anything to happen,
     it should be as good as line-buffered mode if we're printing
     protocol trees.  (The whole reason for the "-l" flag in either
     tcpdump or Rawshark is to allow the output of a live capture to
     be piped to a program or script and to have that script see the
     information for the packet as soon as it's printed, rather than
     having to wait until a standard I/O buffer fills up. */
  if (line_buffered)
    fflush(stdout);

  if (ferror(stdout)) {
    show_print_file_io_error(errno);
    exit(2);
  }

  epan_dissect_cleanup(&edt);
  clear_fdata(&fdata);

  return passed;
}
Example #16
0
PacketDialog::PacketDialog(QWidget &parent, CaptureFile &cf, frame_data *fdata) :
    WiresharkDialog(parent, cf),
    ui(new Ui::PacketDialog),
    phdr_(wtap_pkthdr()),
    packet_data_(NULL)
{
    ui->setupUi(this);
    loadGeometry(parent.width() * 4 / 5, parent.height() * 4 / 5);
    ui->hintLabel->setSmallText();

    setWindowSubtitle(tr("Packet %1").arg(fdata->num));

    if (!cf_read_record(cap_file_.capFile(), fdata)) {
        reject();
        return;
    }

    phdr_ = cap_file_.capFile()->phdr;
    packet_data_ = (guint8 *) g_memdup(ws_buffer_start_ptr(&(cap_file_.capFile()->buf)), fdata->cap_len);

    /* proto tree, visible. We need a proto tree if there's custom columns */
    epan_dissect_init(&edt_, cap_file_.capFile()->epan, TRUE, TRUE);
    col_custom_prime_edt(&edt_, &(cap_file_.capFile()->cinfo));

    epan_dissect_run(&edt_, cap_file_.capFile()->cd_t, &phdr_,
                     frame_tvbuff_new(&cap_file_.capFile()->provider, fdata, packet_data_),
                     fdata, &(cap_file_.capFile()->cinfo));
    epan_dissect_fill_in_columns(&edt_, TRUE, TRUE);

    proto_tree_ = new ProtoTree(ui->packetSplitter);
    proto_tree_->setRootNode(edt_.tree);

    byte_view_tab_ = new ByteViewTab(ui->packetSplitter);
    byte_view_tab_->setCaptureFile(cap_file_.capFile());
    byte_view_tab_->selectedFrameChanged(0);

    ui->packetSplitter->setStretchFactor(1, 0);

    QStringList col_parts;
    for (int i = 0; i < cap_file_.capFile()->cinfo.num_cols; ++i) {
        // ElidedLabel doesn't support rich text / HTML
        col_parts << QString("%1: %2")
                     .arg(get_column_title(i))
                     .arg(cap_file_.capFile()->cinfo.columns[i].col_data);
    }
    col_info_ = col_parts.join(" " UTF8_MIDDLE_DOT " ");

    ui->hintLabel->setText(col_info_);

    connect(wsApp, SIGNAL(zoomMonospaceFont(QFont)),
            proto_tree_, SLOT(setMonospaceFont(QFont)));

    connect(byte_view_tab_, SIGNAL(fieldSelected(FieldInformation *)),
            proto_tree_, SLOT(selectedFieldChanged(FieldInformation *)));
    connect(proto_tree_, SIGNAL(fieldSelected(FieldInformation *)),
            byte_view_tab_, SLOT(selectedFieldChanged(FieldInformation *)));

    connect(byte_view_tab_, SIGNAL(fieldHighlight(FieldInformation *)),
            this, SLOT(setHintText(FieldInformation *)));

}