osmith/wireshark
1
0
Fork 0
forked from osmocom/wireshark
Code Pull requests Releases Wiki Activity
wireshark/gtk/ssl-dlg.c
Jörg Mayer 89020a978f Paolo Abeni 
the attached patch set correctly the title of the 'Follow SSL stream'
dialog, to fix one issue reported by Nail Devis.
Unfortunaly there isn't an easy way to enable the 'Follow SSL stream'
dialog only for ssl session without knowing the value of proto_ssl (the
ssl protocol id), because the ssl dissector can run on user specified
ports (configured via preferences)


svn path=/trunk/; revision=17187
2006-02-06 15:00:49 +00:00

1052 lines
35 KiB
C
Raw Blame History

/* ssl_dlg.c
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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 the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <ctype.h>
#include <color.h>
#include <gtk/colors.h>
#include <gtk/main.h>
#include <epan/follow.h>
#include <gtk/dlg_utils.h>
#include <gtk/keys.h>
#include <globals.h>
#include <alert_box.h>
#include <simple_dialog.h>
#include <epan/dissectors/packet-ipv6.h>
#include <epan/prefs.h>
#include <epan/addr_resolv.h>
#include <epan/charsets.h>
#include <util.h>
#include <gtk/gui_utils.h>
#include <epan/epan_dissect.h>
#include <epan/filesystem.h>
#include <gtk/compat_macros.h>
#include <epan/ipproto.h>
#include <gtk/font_utils.h>
#include <wiretap/file_util.h>
#include <epan/tap.h>
#ifdef SSL_PLUGIN
#include "packet-ssl-utils.h"
#else
#include <epan/dissectors/packet-ssl-utils.h>
#endif
#include "ssl-dlg.h"
#ifndef SSL_SUFFIX
#define SSL_SUFFIX ""
#endif
/* Show Stream */
typedef enum {
FROM_CLIENT,
FROM_SERVER,
BOTH_HOSTS
} show_stream_t;
/* Show Type */
typedef enum {
SHOW_ASCII,
SHOW_HEXDUMP,
SHOW_CARRAY,
SHOW_RAW
} show_type_t;
typedef struct {
show_stream_t show_stream;
show_type_t show_type;
GtkWidget *text;
GtkWidget *ascii_bt;
GtkWidget *ebcdic_bt;
GtkWidget *hexdump_bt;
GtkWidget *carray_bt;
GtkWidget *raw_bt;
GtkWidget *follow_save_as_w;
gboolean is_ipv6;
char *filter_out_filter;
GtkWidget *filter_te;
GtkWidget *streamwindow;
GList *ssl_decrypted_data;
guint bytes_written[2];
guint client_port;
char client_ip[MAX_IPADDR_LEN];
} follow_info_t;
static void follow_destroy_cb(GtkWidget * win, gpointer data);
static void follow_charset_toggle_cb(GtkWidget * w, gpointer parent_w);
static void follow_load_text(follow_info_t *follow_info);
static void follow_filter_out_stream(GtkWidget * w, gpointer parent_w);
static void follow_save_as_cmd_cb(GtkWidget * w, gpointer data);
static void follow_save_as_ok_cb(GtkWidget * w, gpointer fs);
static void follow_save_as_destroy_cb(GtkWidget * win, gpointer user_data);
static void follow_stream_om_both(GtkWidget * w, gpointer data);
static void follow_stream_om_client(GtkWidget * w, gpointer data);
static void follow_stream_om_server(GtkWidget * w, gpointer data);
#define E_FOLLOW_INFO_KEY "follow_info_key"
/* List of "follow_info_t" structures for all "Follow SSL Stream" windows,
so we can redraw them all if the colors or font changes. */
static GList *follow_infos;
typedef struct {
gboolean is_server;
StringInfo* data;
} SslDecryptedRecord;
/* Add a "follow_info_t" structure to the list. */
static void
remember_follow_info(follow_info_t *follow_info)
{
follow_infos = g_list_append(follow_infos, follow_info);
}
/* Remove a "follow_info_t" structure from the list. */
static void
forget_follow_info(follow_info_t *follow_info)
{
follow_infos = g_list_remove(follow_infos, follow_info);
}
static int
ssl_queue_packet_data(void *tapdata, packet_info *pinfo, epan_dissect_t *edt _U_, const void *ssl)
{
follow_info_t* follow_info = tapdata;
SslDecryptedRecord* rec;
int proto_ssl = (int) ssl;
StringInfo* data = p_get_proto_data(pinfo->fd, proto_ssl);
/*ssl_debug_printf("ssl_queue_packet_data: pinfo %p proto_ssl %d data %p\n",
pinfo, proto_ssl, data);*/
/* skip packet without decrypted data payload*/
if (!data)
return 0;
/* compute packet direction */
rec = g_malloc(sizeof(SslDecryptedRecord));
if (follow_info->client_port == 0) {
follow_info->client_port = pinfo->srcport;
memcpy(follow_info->client_ip, pinfo->src.data, pinfo->src.len);
}
if (memcmp(follow_info->client_ip, pinfo->src.data, pinfo->src.len) == 0 &&
follow_info->client_port == pinfo->srcport) {
rec->is_server = 0;
}
else
rec->is_server = 1;
/* update stream counter */
follow_info->bytes_written[rec->is_server] += data->data_len;
/* extract decrypted data and queue it locally */
rec->data = data;
follow_info->ssl_decrypted_data = g_list_append(
follow_info->ssl_decrypted_data,rec);
/*ssl_debug_printf("ssl_queue_packet_data: ssl_decrypted_data %p data len %d\n",
follow_info->ssl_decrypted_data, data->data_len);*/
return 0;
}
/* Follow the SSL stream, if any, to which the last packet that we called
a dissection routine on belongs (this might be the most recently
selected packet, or it might be the last packet in the file). */
void
ssl_stream_cb(GtkWidget * w, gpointer data _U_)
{
GtkWidget *streamwindow, *vbox, *txt_scrollw, *text, *filter_te;
GtkWidget *hbox, *button_hbox, *button, *radio_bt;
GtkWidget *stream_fr, *stream_vb;
GtkWidget *stream_om, *stream_menu, *stream_mi;
GtkTooltips *tooltips;
gchar *follow_filter;
const gchar *previous_filter;
int filter_out_filter_len, previus_filter_len;
const char *hostname0, *hostname1;
char *port0, *port1;
char string[128];
follow_tcp_stats_t stats;
follow_info_t *follow_info;
GString* msg;
/* we got ssl so we can follow */
if (cfile.edt->pi.ipproto != 6) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Error following stream. Please make\n"
"sure you have an SSL packet selected.");
return;
}
follow_info = g_new0(follow_info_t, 1);
/* data will be passed via tap callback*/
msg = register_tap_listener("ssl"SSL_SUFFIX, follow_info, NULL,
NULL, ssl_queue_packet_data, NULL);
if (msg)
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Can't register ssl tap: %s\n",msg->str);
return;
}
/* Create a new filter that matches all packets in the SSL stream,
and set the display filter entry accordingly */
reset_tcp_reassembly();
follow_filter = build_follow_filter(&cfile.edt->pi);
/* Set the display filter entry accordingly */
filter_te = OBJECT_GET_DATA(w, E_DFILTER_TE_KEY);
/* needed in follow_filter_out_stream(), is there a better way? */
follow_info->filter_te = filter_te;
/* save previous filter, const since we're not supposed to alter */
previous_filter =
(const gchar *)gtk_entry_get_text(GTK_ENTRY(filter_te));
/* allocate our new filter. API claims g_malloc terminates program on failure */
/* my calc for max alloc needed is really +10 but when did a few extra bytes hurt ? */
previus_filter_len = previous_filter?strlen(previous_filter):0;
filter_out_filter_len = strlen(follow_filter) + previus_filter_len + 16;
follow_info->filter_out_filter = (gchar *)g_malloc(filter_out_filter_len);
/* append the negation */
if(previus_filter_len) {
g_snprintf(follow_info->filter_out_filter, filter_out_filter_len,
"%s and !(%s)", previous_filter, follow_filter);
} else {
g_snprintf(follow_info->filter_out_filter, filter_out_filter_len,
"!(%s)", follow_filter);
}
gtk_entry_set_text(GTK_ENTRY(filter_te), follow_filter);
/* Run the display filter so it goes in effect - even if it's the
same as the previous display filter. */
main_filter_packets(&cfile, follow_filter, TRUE);
/* Free the filter string, as we're done with it. */
g_free(follow_filter);
/* The data_out_file should now be full of the streams information */
remove_tap_listener(follow_info);
/* The data_out_filename file now has all the text that was in the session */
streamwindow = dlg_window_new("Follow SSL stream");
/* needed in follow_filter_out_stream(), is there a better way? */
follow_info->streamwindow = streamwindow;
gtk_widget_set_name(streamwindow, "SSL stream window");
gtk_window_set_default_size(GTK_WINDOW(streamwindow), DEF_WIDTH, DEF_HEIGHT);
gtk_container_border_width(GTK_CONTAINER(streamwindow), 6);
/* setup the container */
tooltips = gtk_tooltips_new ();
vbox = gtk_vbox_new(FALSE, 6);
gtk_container_add(GTK_CONTAINER(streamwindow), vbox);
/* content frame */
if (incomplete_tcp_stream) {
stream_fr = gtk_frame_new("Stream Content (incomplete)");
} else {
stream_fr = gtk_frame_new("Stream Content");
}
gtk_container_add(GTK_CONTAINER(vbox), stream_fr);
gtk_widget_show(stream_fr);
stream_vb = gtk_vbox_new(FALSE, 6);
gtk_container_set_border_width( GTK_CONTAINER(stream_vb) , 6);
gtk_container_add(GTK_CONTAINER(stream_fr), stream_vb);
/* create a scrolled window for the text */
txt_scrollw = scrolled_window_new(NULL, NULL);
#if GTK_MAJOR_VERSION >= 2
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(txt_scrollw),
GTK_SHADOW_IN);
#endif
gtk_box_pack_start(GTK_BOX(stream_vb), txt_scrollw, TRUE, TRUE, 0);
/* create a text box */
#if GTK_MAJOR_VERSION < 2
text = gtk_text_new(NULL, NULL);
gtk_text_set_editable(GTK_TEXT(text), FALSE);
#else
text = gtk_text_view_new();
gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
#endif
gtk_container_add(GTK_CONTAINER(txt_scrollw), text);
follow_info->text = text;
/* stream hbox */
hbox = gtk_hbox_new(FALSE, 1);
gtk_box_pack_start(GTK_BOX(stream_vb), hbox, FALSE, FALSE, 0);
/* Create Save As Button */
button = BUTTON_NEW_FROM_STOCK(GTK_STOCK_SAVE_AS);
SIGNAL_CONNECT(button, "clicked", follow_save_as_cmd_cb, follow_info);
gtk_tooltips_set_tip (tooltips, button, "Save the content as currently displayed ", NULL);
gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
/* Stream to show */
follow_tcp_stats(&stats);
if (stats.is_ipv6) {
struct e_in6_addr ipaddr;
memcpy(&ipaddr, stats.ip_address[0], 16);
hostname0 = get_hostname6(&ipaddr);
memcpy(&ipaddr, stats.ip_address[0], 16);
hostname1 = get_hostname6(&ipaddr);
} else {
guint32 ipaddr;
memcpy(&ipaddr, stats.ip_address[0], 4);
hostname0 = get_hostname(ipaddr);
memcpy(&ipaddr, stats.ip_address[1], 4);
hostname1 = get_hostname(ipaddr);
}
port0 = get_tcp_port(stats.tcp_port[0]);
port1 = get_tcp_port(stats.tcp_port[1]);
follow_info->is_ipv6 = stats.is_ipv6;
stream_om = gtk_option_menu_new();
stream_menu = gtk_menu_new();
/* Both Stream Directions */
g_snprintf(string, sizeof(string),
"Entire conversation (%u bytes)",
follow_info->bytes_written[0] + follow_info->bytes_written[1]);
stream_mi = gtk_menu_item_new_with_label(string);
SIGNAL_CONNECT(stream_mi, "activate", follow_stream_om_both,
follow_info);
gtk_menu_append(GTK_MENU(stream_menu), stream_mi);
gtk_widget_show(stream_mi);
follow_info->show_stream = BOTH_HOSTS;
/* Host 0 --> Host 1 */
g_snprintf(string, sizeof(string), "%s:%s --> %s:%s (%u bytes)",
hostname0, port0, hostname1, port1,
follow_info->bytes_written[0]);
stream_mi = gtk_menu_item_new_with_label(string);
SIGNAL_CONNECT(stream_mi, "activate", follow_stream_om_client,
follow_info);
gtk_menu_append(GTK_MENU(stream_menu), stream_mi);
gtk_widget_show(stream_mi);
/* Host 1 --> Host 0 */
g_snprintf(string, sizeof(string), "%s:%s --> %s:%s (%u bytes)",
hostname1, port1, hostname0, port0,
follow_info->bytes_written[1]);
stream_mi = gtk_menu_item_new_with_label(string);
SIGNAL_CONNECT(stream_mi, "activate", follow_stream_om_server,
follow_info);
gtk_menu_append(GTK_MENU(stream_menu), stream_mi);
gtk_widget_show(stream_mi);
gtk_option_menu_set_menu(GTK_OPTION_MENU(stream_om), stream_menu);
/* Set history to 0th item, i.e., the first item. */
gtk_option_menu_set_history(GTK_OPTION_MENU(stream_om), 0);
gtk_tooltips_set_tip (tooltips, stream_om,
"Select the stream direction to display", NULL);
gtk_box_pack_start(GTK_BOX(hbox), stream_om, FALSE, FALSE, 0);
/* ASCII radio button */
radio_bt = gtk_radio_button_new_with_label(NULL, "ASCII");
gtk_tooltips_set_tip (tooltips, radio_bt, "Stream data output in \"ASCII\" format", NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio_bt), TRUE);
gtk_box_pack_start(GTK_BOX(hbox), radio_bt, FALSE, FALSE, 0);
SIGNAL_CONNECT(radio_bt, "toggled", follow_charset_toggle_cb,
follow_info);
follow_info->ascii_bt = radio_bt;
follow_info->show_type = SHOW_ASCII;
/* HEX DUMP radio button */
radio_bt = gtk_radio_button_new_with_label(gtk_radio_button_group
(GTK_RADIO_BUTTON(radio_bt)),
"Hex Dump");
gtk_tooltips_set_tip (tooltips, radio_bt, "Stream data output in \"Hexdump\" format", NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio_bt), FALSE);
gtk_box_pack_start(GTK_BOX(hbox), radio_bt, FALSE, FALSE, 0);
SIGNAL_CONNECT(radio_bt, "toggled", follow_charset_toggle_cb,
follow_info);
follow_info->hexdump_bt = radio_bt;
/* C Array radio button */
radio_bt = gtk_radio_button_new_with_label(gtk_radio_button_group
(GTK_RADIO_BUTTON(radio_bt)),
"C Arrays");
gtk_tooltips_set_tip (tooltips, radio_bt, "Stream data output in \"C Array\" format", NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio_bt), FALSE);
gtk_box_pack_start(GTK_BOX(hbox), radio_bt, FALSE, FALSE, 0);
SIGNAL_CONNECT(radio_bt, "toggled", follow_charset_toggle_cb,
follow_info);
follow_info->carray_bt = radio_bt;
/* Raw radio button */
radio_bt = gtk_radio_button_new_with_label(gtk_radio_button_group
(GTK_RADIO_BUTTON(radio_bt)),
"Raw");
gtk_tooltips_set_tip (tooltips, radio_bt, "Stream data output in \"Raw\" (binary) format. "
"As this contains non printable characters, the screen output will be in ASCII format", NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio_bt), FALSE);
gtk_box_pack_start(GTK_BOX(hbox), radio_bt, FALSE, FALSE, 0);
SIGNAL_CONNECT(radio_bt, "toggled", follow_charset_toggle_cb,
follow_info);
follow_info->raw_bt = radio_bt;
/* button hbox */
button_hbox = gtk_hbutton_box_new();
gtk_box_pack_start(GTK_BOX(vbox), button_hbox, FALSE, FALSE, 0);
gtk_button_box_set_layout (GTK_BUTTON_BOX(button_hbox), GTK_BUTTONBOX_END);
gtk_button_box_set_spacing(GTK_BUTTON_BOX(button_hbox), 5);
/* Create exclude stream button */
button = gtk_button_new_with_label("Filter out this stream");
SIGNAL_CONNECT(button, "clicked", follow_filter_out_stream, follow_info);
gtk_tooltips_set_tip (tooltips, button,
"Build a display filter which cuts this stream from the capture", NULL);
gtk_box_pack_start(GTK_BOX(button_hbox), button, FALSE, FALSE, 0);
/* Create Close Button */
button = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
gtk_tooltips_set_tip (tooltips, button,
"Close the dialog and keep the current display filter", NULL);
gtk_box_pack_start(GTK_BOX(button_hbox), button, FALSE, FALSE, 0);
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
window_set_cancel_button(streamwindow, button, window_cancel_button_cb);
/* Tuck away the follow_info object into the window */
OBJECT_SET_DATA(streamwindow, E_FOLLOW_INFO_KEY, follow_info);
follow_load_text(follow_info);
remember_follow_info(follow_info);
SIGNAL_CONNECT(streamwindow, "delete_event", window_delete_event_cb, NULL);
SIGNAL_CONNECT(streamwindow, "destroy", follow_destroy_cb, NULL);
/* Make sure this widget gets destroyed if we quit the main loop,
so that if we exit, we clean up any temporary files we have
for "Follow SSL Stream" windows. */
gtk_quit_add_destroy(gtk_main_level(), GTK_OBJECT(streamwindow));
gtk_widget_show_all(streamwindow);
window_present(streamwindow);
}
/* The destroy call back has the responsibility of
* unlinking the temporary file
* and freeing the filter_out_filter */
static void
follow_destroy_cb(GtkWidget *w, gpointer data _U_)
{
GList* cur;
follow_info_t *follow_info;
follow_info = OBJECT_GET_DATA(w, E_FOLLOW_INFO_KEY);
g_free(follow_info->filter_out_filter);
forget_follow_info(follow_info);
/* free decrypted data list*/
for (cur = follow_info->ssl_decrypted_data; cur; cur = g_list_next(cur))
if (cur->data)
{
/*ssl_debug_printf("follow_destroy_cb: freeing chunk %p\n", cur->data);*/
g_free(cur->data);
cur->data = NULL;
}
g_list_free (follow_info->ssl_decrypted_data);
g_free(follow_info);
}
/* XXX - can I emulate follow_charset_toggle_cb() instead of having
* 3 different functions here?
* That might not be a bad idea, as it might mean we only reload
* the window once, not twice - see follow_charset_toggle_cb()
* for an explanation. */
static void
follow_stream_om_both(GtkWidget *w _U_, gpointer data)
{
follow_info_t *follow_info = data;
follow_info->show_stream = BOTH_HOSTS;
follow_load_text(follow_info);
}
static void
follow_stream_om_client(GtkWidget *w _U_, gpointer data)
{
follow_info_t *follow_info = data;
follow_info->show_stream = FROM_CLIENT;
follow_load_text(follow_info);
}
static void
follow_stream_om_server(GtkWidget *w _U_, gpointer data)
{
follow_info_t *follow_info = data;
follow_info->show_stream = FROM_SERVER;
follow_load_text(follow_info);
}
/* Handles the display style toggling */
static void
follow_charset_toggle_cb(GtkWidget * w _U_, gpointer data)
{
follow_info_t *follow_info = data;
/*
* A radio button toggles when it goes on and when it goes
* off, so when you click a radio button two signals are
* delivered. We only want to reprocess the display once,
* so we do it only when the button goes on.
*/
if (GTK_TOGGLE_BUTTON(w)->active) {
if (w == follow_info->hexdump_bt)
follow_info->show_type = SHOW_HEXDUMP;
else if (w == follow_info->carray_bt)
follow_info->show_type = SHOW_CARRAY;
else if (w == follow_info->ascii_bt)
follow_info->show_type = SHOW_ASCII;
else if (w == follow_info->raw_bt)
follow_info->show_type = SHOW_RAW;
follow_load_text(follow_info);
}
}
#define FLT_BUF_SIZE 1024
typedef enum {
FRS_OK,
FRS_OPEN_ERROR,
FRS_READ_ERROR,
FRS_PRINT_ERROR
} frs_return_t;
/*
* XXX - the routine pointed to by "print_line" doesn't get handed lines,
* it gets handed bufferfuls. That's fine for "follow_write_raw()"
* and "follow_add_to_gtk_text()", but, as "follow_print_text()" calls
* the "print_line()" routine from "print.c", and as that routine might
* genuinely expect to be handed a line (if, for example, it's using
* some OS or desktop environment's printing API, and that API expects
* to be handed lines), "follow_print_text()" should probably accumulate
* lines in a buffer and hand them "print_line()". (If there's a
* complete line in a buffer - i.e., there's nothing of the line in
* the previous buffer or the next buffer - it can just hand that to
* "print_line()" after filtering out non-printables, as an
* optimization.)
*
* This might or might not be the reason why C arrays display
* correctly but get extra blank lines very other line when printed.
*/
static frs_return_t
follow_read_stream(follow_info_t *follow_info,
gboolean (*print_line) (char *, size_t, gboolean, void *),
void *arg)
{
int iplen;
guint32 current_pos, global_client_pos = 0, global_server_pos = 0;
guint32 *global_pos;
gboolean skip;
gchar initbuf[256];
guint32 server_packet_count = 0;
guint32 client_packet_count = 0;
static const gchar hexchars[16] = "0123456789abcdef";
GList* cur;
iplen = (follow_info->is_ipv6) ? 16 : 4;
/*ssl_debug_printf("follow_read_stream: iplen %d list %p\n", iplen,
follow_info->ssl_decrypted_data);*/
for (cur = follow_info->ssl_decrypted_data; cur; cur = g_list_next(cur)) {
SslDecryptedRecord* rec = cur->data;
skip = FALSE;
if (!rec->is_server) {
global_pos = &global_client_pos;
if (follow_info->show_stream == FROM_SERVER) {
skip = TRUE;
}
}
else {
global_pos = &global_server_pos;
if (follow_info->show_stream == FROM_CLIENT) {
skip = TRUE;
}
}
if (!skip) {
size_t nchars = rec->data->data_len;
char* buffer = (char*) rec->data->data;
/*ssl_debug_printf("follow_read_stream: chunk len %d is_server %d\n",
nchars, rec->is_server);*/
switch (follow_info->show_type) {
case SHOW_ASCII:
/* If our native arch is EBCDIC, call:
* ASCII_TO_EBCDIC(buffer, nchars);
*/
if (!(*print_line) (buffer, nchars, rec->is_server, arg))
goto print_error;
break;
case SHOW_RAW:
/* Don't translate, no matter what the native arch
* is.
*/
if (!(*print_line) (buffer, nchars, rec->is_server, arg))
goto print_error;
break;
case SHOW_HEXDUMP:
current_pos = 0;
while (current_pos < nchars) {
gchar hexbuf[256];
int i;
gchar *cur = hexbuf, *ascii_start;
/* is_server indentation : put 78 spaces at the
* beginning of the string */
if (rec->is_server && follow_info->show_stream == BOTH_HOSTS) {
memset(cur, ' ', 78);
cur += 78;
}
cur += g_snprintf(cur, 20, "%08X ", *global_pos);
/* 49 is space consumed by hex chars */
ascii_start = cur + 49;
for (i = 0; i < 16 && current_pos + i < nchars; i++) {
*cur++ =
hexchars[(buffer[current_pos + i] & 0xf0) >> 4];
*cur++ =
hexchars[buffer[current_pos + i] & 0x0f];
*cur++ = ' ';
if (i == 7)
*cur++ = ' ';
}
/* Fill it up if column isn't complete */
while (cur < ascii_start)
*cur++ = ' ';
/* Now dump bytes as text */
for (i = 0; i < 16 && current_pos + i < nchars; i++) {
*cur++ =
(isprint((guchar)buffer[current_pos + i]) ?
buffer[current_pos + i] : '.' );
if (i == 7) {
*cur++ = ' ';
}
}
current_pos += i;
(*global_pos) += i;
*cur++ = '\n';
*cur = 0;
if (!(*print_line) (hexbuf, strlen(hexbuf), rec->is_server, arg))
goto print_error;
}
break;
case SHOW_CARRAY:
current_pos = 0;
g_snprintf(initbuf, sizeof(initbuf), "char peer%d_%d[] = {\n",
rec->is_server ? 1 : 0,
rec->is_server ? server_packet_count++ : client_packet_count++);
if (!(*print_line) (initbuf, strlen(initbuf), rec->is_server, arg))
goto print_error;
while (current_pos < nchars) {
gchar hexbuf[256];
int i, cur;
cur = 0;
for (i = 0; i < 8 && current_pos + i < nchars; i++) {
/* Prepend entries with "0x" */
hexbuf[cur++] = '0';
hexbuf[cur++] = 'x';
hexbuf[cur++] =
hexchars[(buffer[current_pos + i] & 0xf0) >> 4];
hexbuf[cur++] =
hexchars[buffer[current_pos + i] & 0x0f];
/* Delimit array entries with a comma */
if (current_pos + i + 1 < nchars)
hexbuf[cur++] = ',';
hexbuf[cur++] = ' ';
}
/* Terminate the array if we are at the end */
if (current_pos + i == nchars) {
hexbuf[cur++] = '}';
hexbuf[cur++] = ';';
}
current_pos += i;
(*global_pos) += i;
hexbuf[cur++] = '\n';
hexbuf[cur] = 0;
if (!(*print_line) (hexbuf, strlen(hexbuf), rec->is_server, arg))
goto print_error;
}
break;
}
}
}
return FRS_OK;
print_error:
return FRS_PRINT_ERROR;
}
/*
* XXX - for text printing, we probably want to wrap lines at 80 characters;
* (PostScript printing is doing this already), and perhaps put some kind of
* dingbat (to use the technical term) to indicate a wrapped line, along the
* lines of what's done when displaying this in a window, as per Warren Young's
* suggestion.
*/
static gboolean
follow_print_text(char *buffer, size_t nchars, gboolean is_server _U_, void *arg)
{
print_stream_t *stream = arg;
size_t i;
char *str;
/* convert non printable characters */
for (i = 0; i < nchars; i++) {
if (buffer[i] == '\n' || buffer[i] == '\r')
continue;
if (! isprint((guchar)buffer[i])) {
buffer[i] = '.';
}
}
/* convert unterminated char array to a zero terminated string */
str = g_malloc(nchars + 1);
memcpy(str, buffer, nchars);
str[nchars] = 0;
print_line(stream, /*indent*/ 0, str);
g_free(str);
return TRUE;
}
static gboolean
follow_write_raw(char *buffer, size_t nchars, gboolean is_server _U_, void *arg)
{
FILE *fh = arg;
size_t nwritten;
nwritten = fwrite(buffer, 1, nchars, fh);
if (nwritten != nchars)
return FALSE;
return TRUE;
}
static void
follow_filter_out_stream(GtkWidget * w _U_, gpointer data)
{
follow_info_t *follow_info = data;
/* Lock out user from messing with us. (ie. don't free our data!) */
gtk_widget_set_sensitive(follow_info->streamwindow, FALSE);
/* Set the display filter. */
gtk_entry_set_text(GTK_ENTRY(follow_info->filter_te), follow_info->filter_out_filter);
/* Run the display filter so it goes in effect. */
main_filter_packets(&cfile, follow_info->filter_out_filter, FALSE);
/* we force a subsequent close */
window_destroy(follow_info->streamwindow);
return;
}
/* static variable declarations to speed up the performance
* of follow_load_text and follow_add_to_gtk_text
*/
static GdkColor server_fg, server_bg;
static GdkColor client_fg, client_bg;
#if GTK_MAJOR_VERSION >= 2
static GtkTextTag *server_tag, *client_tag;
#endif
static gboolean
follow_add_to_gtk_text(char *buffer, size_t nchars, gboolean is_server,
void *arg)
{
GtkWidget *text = arg;
#if GTK_MAJOR_VERSION >= 2
GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
GtkTextIter iter;
#endif
#if GTK_MAJOR_VERSION >= 2 || GTK_MINOR_VERSION >= 3
/* While our isprint() hack is in place, we
* have to use convert some chars to '.' in order
* to be able to see the data we *should* see
* in the GtkText widget.
*/
size_t i;
for (i = 0; i < nchars; i++) {
if (buffer[i] == '\n' || buffer[i] == '\r')
continue;
if (! isprint(buffer[i])) {
buffer[i] = '.';
}
}
#endif
#if GTK_MAJOR_VERSION < 2
if (is_server) {
gtk_text_insert(GTK_TEXT(text), user_font_get_regular(), &server_fg,
&server_bg, buffer, nchars);
} else {
gtk_text_insert(GTK_TEXT(text), user_font_get_regular(), &client_fg,
&client_bg, buffer, nchars);
}
#else
gtk_text_buffer_get_end_iter(buf, &iter);
if (is_server) {
gtk_text_buffer_insert_with_tags(buf, &iter, buffer, nchars,
server_tag, NULL);
} else {
gtk_text_buffer_insert_with_tags(buf, &iter, buffer, nchars,
client_tag, NULL);
}
#endif
return TRUE;
}
static void
follow_load_text(follow_info_t *follow_info)
{
#if GTK_MAJOR_VERSION < 2
int bytes_already;
#else
GtkTextBuffer *buf;
buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(follow_info->text));
#endif
/* prepare colors one time for repeated use by follow_add_to_gtk_text */
color_t_to_gdkcolor(&server_fg, &prefs.st_server_fg);
color_t_to_gdkcolor(&server_bg, &prefs.st_server_bg);
color_t_to_gdkcolor(&client_fg, &prefs.st_client_fg);
color_t_to_gdkcolor(&client_bg, &prefs.st_client_bg);
/* Delete any info already in text box */
#if GTK_MAJOR_VERSION < 2
bytes_already = gtk_text_get_length(GTK_TEXT(follow_info->text));
if (bytes_already > 0) {
gtk_text_set_point(GTK_TEXT(follow_info->text), 0);
gtk_text_forward_delete(GTK_TEXT(follow_info->text), bytes_already);
}
/* stop the updates while we fill the text box */
gtk_text_freeze(GTK_TEXT(follow_info->text));
#else
/* prepare tags one time for repeated use by follow_add_to_gtk_text */
server_tag = gtk_text_buffer_create_tag(buf, NULL, "foreground-gdk", &server_fg,
"background-gdk", &server_bg, "font-desc",
user_font_get_regular(), NULL);
client_tag = gtk_text_buffer_create_tag(buf, NULL, "foreground-gdk", &client_fg,
"background-gdk", &client_bg, "font-desc",
user_font_get_regular(), NULL);
gtk_text_buffer_set_text(buf, "", -1);
#endif
follow_read_stream(follow_info, follow_add_to_gtk_text, follow_info->text);
#if GTK_MAJOR_VERSION < 2
gtk_text_thaw(GTK_TEXT(follow_info->text));
#endif
}
/*
* Keep a static pointer to the current "Save SSL Follow Stream As" window, if
* any, so that if somebody tries to do "Save"
* while there's already a "Save SSL Follow Stream" window up, we just pop
* up the existing one, rather than creating a new one.
*/
static void
follow_save_as_cmd_cb(GtkWidget *w _U_, gpointer data)
{
GtkWidget *new_win;
follow_info_t *follow_info = data;
if (follow_info->follow_save_as_w != NULL) {
/* There's already a dialog box; reactivate it. */
reactivate_window(follow_info->follow_save_as_w);
return;
}
new_win = file_selection_new("Ethereal: Save SSL Follow Stream As",
FILE_SELECTION_SAVE);
follow_info->follow_save_as_w = new_win;
/* Tuck away the follow_info object into the window */
OBJECT_SET_DATA(new_win, E_FOLLOW_INFO_KEY, follow_info);
SIGNAL_CONNECT(new_win, "destroy", follow_save_as_destroy_cb, follow_info);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
if (gtk_dialog_run(GTK_DIALOG(new_win)) == GTK_RESPONSE_ACCEPT)
{
follow_save_as_ok_cb(new_win, new_win);
} else {
window_destroy(new_win);
}
#else
/* Connect the ok_button to file_save_as_ok_cb function and pass along a
pointer to the file selection box widget */
SIGNAL_CONNECT(GTK_FILE_SELECTION(new_win)->ok_button,
"clicked", follow_save_as_ok_cb, new_win);
window_set_cancel_button(new_win,
GTK_FILE_SELECTION(new_win)->cancel_button, window_cancel_button_cb);
gtk_file_selection_set_filename(GTK_FILE_SELECTION(new_win), "");
SIGNAL_CONNECT(new_win, "delete_event", window_delete_event_cb, NULL);
gtk_widget_show_all(new_win);
window_present(new_win);
#endif
}
static void
follow_save_as_ok_cb(GtkWidget * w _U_, gpointer fs)
{
gchar *to_name;
follow_info_t *follow_info;
FILE *fh;
print_stream_t *stream = NULL;
gchar *dirname;
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
to_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
to_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif
/* Perhaps the user specified a directory instead of a file.
Check whether they did. */
if (test_for_directory(to_name) == EISDIR) {
/* It's a directory - set the file selection box to display that
directory, and leave the selection box displayed. */
set_last_open_dir(to_name);
g_free(to_name);
file_selection_set_current_folder(fs, get_last_open_dir());
return;
}
follow_info = OBJECT_GET_DATA(fs, E_FOLLOW_INFO_KEY);
if (follow_info->show_type == SHOW_RAW) {
/* Write the data out as raw binary data */
fh = eth_fopen(to_name, "wb");
} else {
/* Write it out as text */
fh = eth_fopen(to_name, "w");
}
if (fh == NULL) {
open_failure_alert_box(to_name, errno, TRUE);
g_free(to_name);
return;
}
gtk_widget_hide(GTK_WIDGET(fs));
window_destroy(GTK_WIDGET(fs));
if (follow_info->show_type == SHOW_RAW) {
switch (follow_read_stream(follow_info, follow_write_raw, fh)) {
case FRS_OK:
if (fclose(fh) == EOF)
write_failure_alert_box(to_name, errno);
break;
case FRS_OPEN_ERROR:
case FRS_READ_ERROR:
fclose(fh);
break;
case FRS_PRINT_ERROR:
write_failure_alert_box(to_name, errno);
fclose(fh);
break;
}
} else {
stream = print_stream_text_stdio_new(fh);
switch (follow_read_stream(follow_info, follow_print_text, stream)) {
case FRS_OK:
if (!destroy_print_stream(stream))
write_failure_alert_box(to_name, errno);
break;
case FRS_OPEN_ERROR:
case FRS_READ_ERROR:
destroy_print_stream(stream);
break;
case FRS_PRINT_ERROR:
write_failure_alert_box(to_name, errno);
destroy_print_stream(stream);
break;
}
}
/* Save the directory name for future file dialogs. */
dirname = get_dirname(to_name); /* Overwrites to_name */
set_last_open_dir(dirname);
g_free(to_name);
}
static void
follow_save_as_destroy_cb(GtkWidget * win _U_, gpointer data)
{
follow_info_t *follow_info = data;
/* Note that we no longer have a dialog box. */
follow_info->follow_save_as_w = NULL;
}
View git blame Copy permalink