795 lines
30 KiB
C
795 lines
30 KiB
C
/* firewall_rules_dlg.c
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*
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* $Id$
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Generate firewall ACL rules based on packet addresses and ports.
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* For directional rules, an outside interface is assumed.
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*
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* There may be better ways to present the information, e.g. all rules
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* in one huge text window, or some sort of tree view.
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*/
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/*
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* To add a new product, add syntax functions modify the products[] array.
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*
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* To add a new syntax function, add its prototype above the products[]
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* array, and add the function below with all the others.
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*/
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/* Copied from ssl-dlg.c */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <gtk/gtk.h>
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#include <epan/packet.h>
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#include <epan/addr_resolv.h>
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#include <epan/epan_dissect.h>
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#include <epan/filesystem.h>
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#include <epan/dissectors/packet-ipv6.h>
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#include <../alert_box.h>
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#include <../simple_dialog.h>
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#include <wsutil/file_util.h>
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#include <gtk/main.h>
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#include <gtk/dlg_utils.h>
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#include <gtk/file_dlg.h>
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#include <gtk/help_dlg.h>
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#include <gtk/gui_utils.h>
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#include "gtk/old-gtk-compat.h"
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#include "gtk/firewall_dlg.h"
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#define MAX_RULE_LEN 200
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/* Rule types */
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typedef enum {
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RT_NONE,
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RT_MAC_SRC,
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RT_MAC_DST,
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RT_IPv4_SRC,
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RT_IPv4_DST,
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RT_PORT_SRC,
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RT_PORT_DST,
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RT_IPv4_PORT_SRC,
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RT_IPv4_PORT_DST,
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NUM_RULE_TYPES
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} rule_type_t;
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/* Copied from packet_info struct */
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typedef struct _rule_info_t {
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gint product;
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address dl_src;
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address dl_dst;
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address net_src;
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address net_dst;
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port_type ptype;
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guint32 srcport;
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guint32 destport;
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GtkWidget *text;
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GtkWidget *filter_combo_box;
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GtkWidget *deny_cb;
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GtkWidget *inbound_cb;
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GtkWidget *firewall_save_as_w;
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gboolean inbound;
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gboolean deny;
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rule_type_t rule_type;
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} rule_info_t;
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/* Syntax function prototypes */
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typedef void (*syntax_func)(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_dummy(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfw_mac(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netfilter_mac(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ios_std_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ios_ext_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfilter_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfw_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netfilter_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_pf_ipv4(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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/* XXX - Can you addresses-only filters using WFW/netsh? */
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static void sf_ios_ext_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfilter_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfw_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netfilter_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_pf_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netsh_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ios_ext_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfilter_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_ipfw_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netfilter_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_pf_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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static void sf_netsh_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny);
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typedef struct _fw_product_t {
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gchar *name;
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gchar *comment_pfx;
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syntax_func mac_func;
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syntax_func ipv4_func;
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syntax_func port_func;
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syntax_func ipv4_port_func;
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gboolean does_inbound;
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} fw_product;
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static fw_product products[] = {
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{ "Cisco IOS (standard)", "!", NULL, sf_ios_std_ipv4, NULL, NULL, FALSE },
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{ "Cisco IOS (extended)", "!",
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NULL, sf_ios_ext_ipv4, sf_ios_ext_port, sf_ios_ext_ipv4_port, TRUE },
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{ "IP Filter (ipfilter)", "#",
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NULL, sf_ipfilter_ipv4, sf_ipfilter_port, sf_ipfilter_ipv4_port, TRUE },
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{ "IPFirewall (ipfw)", "#",
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sf_ipfw_mac, sf_ipfw_ipv4, sf_ipfw_port, sf_ipfw_ipv4_port, TRUE },
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{ "Netfilter (iptables)", "#",
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sf_netfilter_mac, sf_netfilter_ipv4, sf_netfilter_port,
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sf_netfilter_ipv4_port, TRUE },
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{ "Packet Filter (pf)", "#",
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NULL, sf_pf_ipv4, sf_pf_port, sf_pf_ipv4_port, TRUE },
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{ "Windows Firewall (netsh)", "#",
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NULL, NULL, sf_netsh_port, sf_netsh_ipv4_port, FALSE }
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};
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#define NUM_PRODS (sizeof(products) / sizeof(fw_product))
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static void select_product(GtkWidget * win, gpointer data);
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static void select_filter(GtkWidget * win, gpointer data);
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static void toggle_inbound(GtkToggleButton *t, gpointer data);
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static void toggle_deny(GtkToggleButton *t, gpointer data);
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static void set_rule_text(rule_info_t *rule_info);
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static void firewall_destroy_cb(GtkWidget * win, gpointer data);
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static void firewall_copy_cmd_cb(GtkWidget * w, gpointer data);
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static void firewall_save_as_cmd_cb(GtkWidget * w, gpointer data);
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static gboolean firewall_save_as_ok_cb(GtkWidget * w, gpointer fs);
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static void firewall_save_as_destroy_cb(GtkWidget * win, gpointer user_data);
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#define WS_RULE_INFO_KEY "rule_info_key"
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#if 0
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/* List of "rule_info_t" structures for all rule windows. */
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static GList *rule_infos;
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/* Remove a "rule_info_t" structure from the list. */
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static void
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forget_rule_info(rule_info_t *rule_info)
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{
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rule_infos = g_list_remove(rule_infos, rule_info);
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}
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#endif
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void
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firewall_rule_cb(GtkWidget *w _U_, gpointer data _U_)
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{
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GtkWidget *rule_w, *vbox, *txt_scrollw, *text;
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GtkWidget *label, *product_combo_box;
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GtkWidget *hbox, *button_hbox, *button;
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rule_info_t *rule_info;
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packet_info *pinfo = &cfile.edt->pi;
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guint i;
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rule_info = g_new0(rule_info_t, 1);
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COPY_ADDRESS(&(rule_info->dl_src), &(pinfo->dl_src));
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COPY_ADDRESS(&(rule_info->dl_dst), &(pinfo->dl_dst));
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COPY_ADDRESS(&(rule_info->net_src), &(pinfo->net_src));
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COPY_ADDRESS(&(rule_info->net_dst), &(pinfo->net_dst));
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rule_info->ptype = pinfo->ptype;
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rule_info->srcport = pinfo->srcport;
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rule_info->destport = pinfo->destport;
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rule_info->inbound = TRUE;
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rule_info->deny = TRUE;
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rule_info->product = 0;
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rule_w = dlg_window_new("Firewall ACL Rules");
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gtk_widget_set_name(rule_w, "Firewall ACL rule window");
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gtk_container_set_border_width(GTK_CONTAINER(rule_w), 6);
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/* setup the container */
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vbox = gtk_vbox_new(FALSE, 6);
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gtk_container_add(GTK_CONTAINER(rule_w), vbox);
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/* rule type selectors hbox */
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hbox = gtk_hbox_new(FALSE, 1);
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gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
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/* product selector */
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label = gtk_label_new("Product");
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gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
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product_combo_box = gtk_combo_box_text_new();
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for (i = 0; i < NUM_PRODS; i++) {
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(product_combo_box), products[i].name);
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}
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g_object_set_data(G_OBJECT(product_combo_box), WS_RULE_INFO_KEY, rule_info);
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g_signal_connect(product_combo_box, "changed", G_CALLBACK(select_product), NULL);
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gtk_box_pack_start(GTK_BOX(hbox), product_combo_box, FALSE, FALSE, 5);
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/* type selector */
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label = gtk_label_new("Filter");
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gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 10);
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rule_info->filter_combo_box = ws_combo_box_new_text_and_pointer();
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g_object_set_data(G_OBJECT(rule_info->filter_combo_box), WS_RULE_INFO_KEY, rule_info); \
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g_signal_connect(rule_info->filter_combo_box, "changed", G_CALLBACK(select_filter), NULL);
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gtk_box_pack_start(GTK_BOX(hbox), rule_info->filter_combo_box, FALSE, FALSE, 5);
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/* inbound selector */
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rule_info->inbound_cb = gtk_check_button_new_with_label("Inbound");
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gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(rule_info->inbound_cb),
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rule_info->inbound);
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gtk_box_pack_start(GTK_BOX(hbox), rule_info->inbound_cb, FALSE, FALSE, 10);
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g_signal_connect(rule_info->inbound_cb, "toggled", G_CALLBACK(toggle_inbound), rule_info);
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/* deny selector */
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rule_info->deny_cb = gtk_check_button_new_with_label("Deny");
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gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(rule_info->deny_cb),
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rule_info->deny);
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gtk_box_pack_start(GTK_BOX(hbox), rule_info->deny_cb, FALSE, FALSE, 10);
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g_signal_connect(rule_info->deny_cb, "toggled", G_CALLBACK(toggle_deny), rule_info);
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/* create a scrolled window for the text */
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txt_scrollw = scrolled_window_new(NULL, NULL);
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gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(txt_scrollw),
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GTK_SHADOW_IN);
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gtk_box_pack_start(GTK_BOX(vbox), txt_scrollw, TRUE, TRUE, 0);
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/* create a text box */
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text = gtk_text_view_new();
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gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
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gtk_container_add(GTK_CONTAINER(txt_scrollw), text);
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rule_info->text = text;
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/* Button row */
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button_hbox = dlg_button_row_new(GTK_STOCK_HELP, GTK_STOCK_COPY, GTK_STOCK_SAVE, GTK_STOCK_CANCEL, NULL);
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gtk_box_pack_start(GTK_BOX(vbox), button_hbox, FALSE, FALSE, 0);
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/* Create Copy Button */
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button = g_object_get_data(G_OBJECT(button_hbox), GTK_STOCK_COPY);
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g_signal_connect(button, "clicked", G_CALLBACK(firewall_copy_cmd_cb), rule_info);
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gtk_widget_set_tooltip_text(button, "Copy rule to clipboard");
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/* Create Save Button */
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button = g_object_get_data(G_OBJECT(button_hbox), GTK_STOCK_SAVE);
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g_signal_connect(button, "clicked", G_CALLBACK(firewall_save_as_cmd_cb), rule_info);
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gtk_widget_set_tooltip_text(button, "Save the rule as currently displayed");
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button = g_object_get_data(G_OBJECT(button_hbox), GTK_STOCK_CANCEL);
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gtk_widget_set_tooltip_text(button, "Cancel the dialog");
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window_set_cancel_button(rule_w, button, window_cancel_button_cb);
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button = g_object_get_data(G_OBJECT(button_hbox), GTK_STOCK_HELP);
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g_signal_connect(button, "clicked", G_CALLBACK(topic_cb), (gpointer)HELP_FIREWALL_DIALOG);
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/* Tuck away the rule_info object into the window */
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g_object_set_data(G_OBJECT(rule_w), WS_RULE_INFO_KEY, rule_info);
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g_signal_connect(rule_w, "delete_event", G_CALLBACK(window_delete_event_cb), NULL);
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g_signal_connect(rule_w, "destroy", G_CALLBACK(firewall_destroy_cb), NULL);
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/* Make sure this widget gets destroyed if we quit the main loop,
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so that if we exit, we clean up any temporary files we have
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for "Follow SSL Stream" windows.
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gtk_quit_add_destroy is deprecated and should not be used in newly-written code. This function is going to be removed in GTK+ 3.0
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gtk_quit_add_destroy(gtk_main_level(), GTK_OBJECT(rule_w));
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*/
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gtk_combo_box_set_active(GTK_COMBO_BOX(product_combo_box), 0); /* invokes select_product callback */
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gtk_widget_show_all(rule_w);
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window_present(rule_w);
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}
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/* Set the current product. */
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#define ADD_TO_FILTER_MENU(rt) \
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ws_combo_box_append_text_and_pointer(GTK_COMBO_BOX(rule_info->filter_combo_box), name, GUINT_TO_POINTER(rt)); \
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if (rule_type == RT_NONE) { \
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rule_type = rt; \
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}
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#define NAME_TCP_UDP (rule_info->ptype == PT_TCP ? "TCP" : "UDP")
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static void
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select_product(GtkWidget *w, gpointer data _U_)
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{
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guint prod = gtk_combo_box_get_active(GTK_COMBO_BOX(w));
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rule_info_t *rule_info;
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gchar name[MAX_RULE_LEN], addr_str[MAX_RULE_LEN];
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address *addr;
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rule_type_t rule_type = RT_NONE;
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gboolean sensitive = FALSE;
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rule_info = g_object_get_data(G_OBJECT(w), WS_RULE_INFO_KEY);
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if (prod >= NUM_PRODS || !rule_info)
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return;
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rule_info->product = prod;
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/* Clear the list store (ie: the como_box list items) */
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ws_combo_box_clear_text_and_pointer(GTK_COMBO_BOX(rule_info->filter_combo_box));
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/* Fill in valid combo_box list items (in the list store). */
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if (products[prod].mac_func && rule_info->dl_src.type == AT_ETHER) {
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addr = &(rule_info->dl_src);
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address_to_str_buf(addr, name, MAX_RULE_LEN);
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ADD_TO_FILTER_MENU(RT_MAC_SRC);
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addr = &(rule_info->dl_dst);
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address_to_str_buf(addr, name, MAX_RULE_LEN);
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ADD_TO_FILTER_MENU(RT_MAC_DST);
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}
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if (products[prod].ipv4_func && rule_info->net_src.type == AT_IPv4) {
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addr = &(rule_info->net_src);
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address_to_str_buf(addr, name, MAX_RULE_LEN);
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ADD_TO_FILTER_MENU(RT_IPv4_SRC);
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addr = &(rule_info->net_dst);
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address_to_str_buf(addr, name, MAX_RULE_LEN);
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ADD_TO_FILTER_MENU(RT_IPv4_DST);
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}
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if (products[prod].port_func && (rule_info->ptype == PT_TCP || rule_info->ptype == PT_UDP)) {
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g_snprintf(name, MAX_RULE_LEN, "%s port %u", NAME_TCP_UDP,
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rule_info->srcport);
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ADD_TO_FILTER_MENU(RT_PORT_SRC);
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if (rule_info->srcport != rule_info->destport) {
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g_snprintf(name, MAX_RULE_LEN, "%s port %u", NAME_TCP_UDP,
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rule_info->destport);
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ADD_TO_FILTER_MENU(RT_PORT_DST);
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}
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}
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if (products[prod].ipv4_port_func && rule_info->net_src.type == AT_IPv4 &&
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(rule_info->ptype == PT_TCP || rule_info->ptype == PT_UDP)) {
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addr = &(rule_info->net_src);
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address_to_str_buf(addr, addr_str, MAX_RULE_LEN);
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g_snprintf(name, MAX_RULE_LEN, "%s + %s port %u", addr_str,
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NAME_TCP_UDP, rule_info->srcport);
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ADD_TO_FILTER_MENU(RT_IPv4_PORT_SRC);
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addr = &(rule_info->net_dst);
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address_to_str_buf(addr, addr_str, MAX_RULE_LEN);
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g_snprintf(name, MAX_RULE_LEN, "%s + %s port %u", addr_str,
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NAME_TCP_UDP, rule_info->destport);
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ADD_TO_FILTER_MENU(RT_IPv4_PORT_DST);
|
|
}
|
|
|
|
if (rule_type != RT_NONE) {
|
|
gtk_combo_box_set_active(GTK_COMBO_BOX(rule_info->filter_combo_box), 0); /* invokes select_filter callback */
|
|
sensitive = TRUE;
|
|
} else {
|
|
select_filter(rule_info->filter_combo_box, NULL); /* Call if RT_NONE [with nothing selected] */
|
|
}
|
|
|
|
gtk_widget_set_sensitive(rule_info->filter_combo_box, sensitive);
|
|
gtk_widget_set_sensitive(rule_info->inbound_cb, products[prod].does_inbound && sensitive);
|
|
gtk_widget_set_sensitive(rule_info->deny_cb, sensitive);
|
|
}
|
|
|
|
/* Set the rule text based upon the current product and current filter. */
|
|
static void
|
|
select_filter(GtkWidget *w, gpointer data _U_)
|
|
{
|
|
rule_type_t cur_type;
|
|
rule_info_t *rule_info;
|
|
gpointer ptr;
|
|
|
|
rule_info = g_object_get_data(G_OBJECT(w), WS_RULE_INFO_KEY);
|
|
if (!rule_info)
|
|
return;
|
|
|
|
|
|
if (ws_combo_box_get_active_pointer(GTK_COMBO_BOX(w), &ptr))
|
|
cur_type = GPOINTER_TO_UINT(ptr);
|
|
else
|
|
cur_type = RT_NONE; /* If nothing selected (eg: nothing in filter list) */
|
|
|
|
if (cur_type >= NUM_RULE_TYPES)
|
|
return;
|
|
|
|
rule_info->rule_type = cur_type;
|
|
|
|
set_rule_text(rule_info);
|
|
}
|
|
|
|
/* Set inbound/outbound */
|
|
static void
|
|
toggle_inbound(GtkToggleButton *t, gpointer data)
|
|
{
|
|
rule_info_t *rule_info = (rule_info_t *) data;
|
|
|
|
rule_info->inbound = gtk_toggle_button_get_active(t);
|
|
|
|
set_rule_text(rule_info);
|
|
}
|
|
|
|
/* Set deny/allow. */
|
|
static void
|
|
toggle_deny(GtkToggleButton *t, gpointer data)
|
|
{
|
|
rule_info_t *rule_info = (rule_info_t *) data;
|
|
|
|
rule_info->deny = gtk_toggle_button_get_active(t);
|
|
|
|
set_rule_text(rule_info);
|
|
}
|
|
|
|
/* Set the rule text */
|
|
#define DL_ADDR (rt == RT_MAC_SRC ? &(rule_info->dl_src) : &(rule_info->dl_dst))
|
|
#define NET_ADDR (rt == RT_IPv4_SRC ? &(rule_info->net_src) : &(rule_info->net_dst))
|
|
#define NET_PORT (rt == RT_PORT_SRC ? rule_info->srcport : rule_info->destport)
|
|
static void
|
|
set_rule_text(rule_info_t *rule_info) {
|
|
GString *rtxt = g_string_new("");
|
|
gchar addr_str[MAX_RULE_LEN];
|
|
rule_type_t rt = rule_info->rule_type;
|
|
guint prod = rule_info->product;
|
|
address *addr = NULL;
|
|
guint32 port = 0;
|
|
syntax_func rt_func = NULL;
|
|
|
|
GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(rule_info->text));
|
|
|
|
if (prod < NUM_PRODS) {
|
|
g_string_printf(rtxt, "%s %s\n", products[prod].comment_pfx, products[prod].name);
|
|
switch(rt) {
|
|
case RT_NONE:
|
|
g_string_append_printf(rtxt, "%s Not supported", products[prod].comment_pfx);
|
|
rt_func = sf_dummy;
|
|
break;
|
|
case RT_MAC_SRC:
|
|
case RT_MAC_DST:
|
|
addr = DL_ADDR;
|
|
address_to_str_buf(addr, addr_str, MAX_RULE_LEN);
|
|
rt_func = products[prod].mac_func;
|
|
break;
|
|
case RT_IPv4_SRC:
|
|
case RT_IPv4_DST:
|
|
addr = NET_ADDR;
|
|
address_to_str_buf(addr, addr_str, MAX_RULE_LEN);
|
|
rt_func = products[prod].ipv4_func;
|
|
break;
|
|
case RT_PORT_SRC:
|
|
case RT_PORT_DST:
|
|
port = NET_PORT;
|
|
rt_func = products[prod].port_func;
|
|
break;
|
|
case RT_IPv4_PORT_SRC:
|
|
case RT_IPv4_PORT_DST:
|
|
addr = NET_ADDR;
|
|
address_to_str_buf(addr, addr_str, MAX_RULE_LEN);
|
|
port = NET_PORT;
|
|
rt_func = products[prod].ipv4_port_func;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rt_func) {
|
|
rt_func(rtxt, addr_str, port, rule_info->ptype, rule_info->inbound, rule_info->deny);
|
|
} else {
|
|
g_string_append_printf(rtxt, "ERROR: Unable to create rule");
|
|
}
|
|
|
|
gtk_text_buffer_set_text(buf, rtxt->str, (gint) rtxt->len);
|
|
|
|
g_string_free(rtxt, TRUE);
|
|
}
|
|
|
|
|
|
/* Rule text functions */
|
|
/* Dummy */
|
|
static void sf_dummy(GString *rtxt _U_, gchar *addr _U_, guint32 port _U_, port_type ptype _U_, gboolean inbound _U_, gboolean deny _U_) {
|
|
}
|
|
|
|
/* MAC */
|
|
#define IPFW_DENY (deny ? "deny" : "allow")
|
|
#define IPFW_IN (inbound ? "in" : "out")
|
|
static void sf_ipfw_mac(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add %s MAC %s any %s",
|
|
IPFW_DENY, addr, IPFW_IN);
|
|
}
|
|
|
|
#define NF_DROP (deny ? "DROP" : "ACCEPT")
|
|
#define NF_INPUT (inbound ? "INPUT" : "OUTPUT")
|
|
static void sf_netfilter_mac(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "iptables -A %s --mac-source %s -j %s",
|
|
NF_INPUT, addr, NF_DROP);
|
|
}
|
|
|
|
/* IPv4 */
|
|
#define IOS_DENY (deny ? "deny" : "permit")
|
|
static void sf_ios_std_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound _U_, gboolean deny) {
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s host %s", IOS_DENY, addr);
|
|
}
|
|
|
|
static void sf_ios_ext_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
if (inbound)
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s ip host %s any", IOS_DENY, addr);
|
|
else
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s ip any host %s", IOS_DENY, addr);
|
|
}
|
|
|
|
#define IPFILTER_DENY (deny ? "block" : "pass")
|
|
#define IPFILTER_IN (inbound ? "in" : "out")
|
|
static void sf_ipfilter_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "%s %s on le0 from %s to any",
|
|
IPFILTER_DENY, IPFILTER_IN, addr);
|
|
}
|
|
|
|
static void sf_ipfw_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add %s ip from %s to any %s",
|
|
IPFW_DENY, addr, IPFW_IN);
|
|
}
|
|
|
|
static void sf_netfilter_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "iptables -A %s -i eth0 -d %s/32 -j %s",
|
|
NF_INPUT, addr, NF_DROP);
|
|
}
|
|
|
|
#define PF_DENY (deny ? "block" : "pass")
|
|
#define PF_IN (inbound ? "in" : "out")
|
|
static void sf_pf_ipv4(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "%s %s quick on $ext_if from %s to any",
|
|
PF_DENY, PF_IN, addr);
|
|
}
|
|
|
|
/* Port */
|
|
#define RT_TCP_UDP (ptype == PT_TCP ? "tcp" : "udp")
|
|
static void sf_ios_ext_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype, gboolean inbound _U_, gboolean deny) {
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s %s any any eq %u",
|
|
IOS_DENY, RT_TCP_UDP, port);
|
|
}
|
|
|
|
static void sf_ipfilter_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "%s %s on le0 proto %s from any to any port = %u",
|
|
IPFILTER_DENY, IPFILTER_IN, RT_TCP_UDP, port);
|
|
}
|
|
|
|
static void sf_ipfw_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add %s %s from any to any %u %s",
|
|
IPFW_DENY, RT_TCP_UDP, port, IPFW_IN);
|
|
}
|
|
|
|
static void sf_netfilter_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "iptables -A %s -p %s --destination-port %u -j %s",
|
|
NF_INPUT, RT_TCP_UDP, port, NF_DROP);
|
|
}
|
|
|
|
static void sf_pf_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "%s %s quick on $ext_if proto %s from any to any port %u",
|
|
PF_DENY, PF_IN, RT_TCP_UDP, port);
|
|
}
|
|
|
|
#define NETSH_DENY (deny ? "DISABLE" : "ENABLE")
|
|
static void sf_netsh_port(GString *rtxt, gchar *addr _U_, guint32 port, port_type ptype, gboolean inbound _U_, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add portopening %s %u Wireshark %s",
|
|
RT_TCP_UDP, port, NETSH_DENY);
|
|
}
|
|
|
|
/* IPv4 + port */
|
|
static void sf_ios_ext_ipv4_port(GString *rtxt, gchar *addr, guint32 port _U_, port_type ptype _U_, gboolean inbound, gboolean deny) {
|
|
if (inbound)
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s %s host %s any eq %u", IOS_DENY, RT_TCP_UDP, addr, port);
|
|
else
|
|
g_string_append_printf(rtxt, "access-list NUMBER %s %s any host %s eq %u", IOS_DENY, RT_TCP_UDP, addr, port);
|
|
}
|
|
|
|
static void sf_ipfilter_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
if (inbound)
|
|
g_string_append_printf(rtxt, "%s %s on le0 proto %s from %s to any port = %u",
|
|
IPFILTER_DENY, IPFILTER_IN, RT_TCP_UDP, addr, port);
|
|
else
|
|
g_string_append_printf(rtxt, "%s %s on le0 proto %s from any to %s port = %u",
|
|
IPFILTER_DENY, IPFILTER_IN, RT_TCP_UDP, addr, port);
|
|
}
|
|
|
|
static void sf_ipfw_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add %s %s from %s to any %u %s",
|
|
IPFW_DENY, RT_TCP_UDP, addr, port, IPFW_IN);
|
|
}
|
|
|
|
static void sf_pf_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "%s %s quick on $ext_if proto %s from %s to any port %u",
|
|
PF_DENY, PF_IN, RT_TCP_UDP, addr, port);
|
|
}
|
|
|
|
static void sf_netfilter_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound, gboolean deny) {
|
|
g_string_append_printf(rtxt, "iptables -A %s -p %s -d %s/32 --destination-port %u -j %s",
|
|
NF_INPUT, RT_TCP_UDP, addr, port, NF_DROP);
|
|
}
|
|
|
|
static void sf_netsh_ipv4_port(GString *rtxt, gchar *addr, guint32 port, port_type ptype, gboolean inbound _U_, gboolean deny) {
|
|
g_string_append_printf(rtxt, "add portopening %s %u Wireshark %s %s",
|
|
RT_TCP_UDP, port, NETSH_DENY, addr);
|
|
}
|
|
|
|
/* The destroy call back has the responsibility of
|
|
* unlinking the temporary file
|
|
* and freeing the filter_out_filter */
|
|
static void
|
|
firewall_destroy_cb(GtkWidget *w, gpointer data _U_)
|
|
{
|
|
rule_info_t *rule_info;
|
|
|
|
rule_info = g_object_get_data(G_OBJECT(w), WS_RULE_INFO_KEY);
|
|
#if 0
|
|
forget_rule_info(rule_info);
|
|
#endif
|
|
g_free(rule_info);
|
|
gtk_widget_destroy(w);
|
|
}
|
|
|
|
static void
|
|
firewall_copy_cmd_cb(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
rule_info_t *rule_info = data;
|
|
|
|
GtkTextIter start, end;
|
|
GtkTextBuffer *buf;
|
|
|
|
buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(rule_info->text));
|
|
gtk_text_buffer_get_start_iter(buf, &start);
|
|
gtk_text_buffer_get_end_iter(buf, &end);
|
|
gtk_text_buffer_select_range(buf, &start, &end);
|
|
gtk_text_buffer_copy_clipboard(buf, gtk_clipboard_get(GDK_SELECTION_CLIPBOARD));
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
firewall_save_as_cmd_cb(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
GtkWidget *new_win;
|
|
rule_info_t *rule_info = data;
|
|
|
|
#if 0 /* XXX: GtkFileChooserDialog/gtk_dialog_run currently being used is effectively modal so this is not req'd */
|
|
if (rule_info->firewall_save_as_w != NULL) {
|
|
/* There's already a dialog box; reactivate it. */
|
|
reactivate_window(rule_info->firewall_save_as_w);
|
|
return;
|
|
}
|
|
#endif
|
|
new_win = file_selection_new("Wireshark: Save Firewall ACL Rule",
|
|
FILE_SELECTION_SAVE);
|
|
rule_info->firewall_save_as_w = new_win;
|
|
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(new_win), TRUE);
|
|
|
|
/* Tuck away the rule_info object into the window */
|
|
g_object_set_data(G_OBJECT(new_win), WS_RULE_INFO_KEY, rule_info);
|
|
|
|
g_signal_connect(new_win, "destroy", G_CALLBACK(firewall_save_as_destroy_cb), rule_info);
|
|
|
|
#if 0
|
|
if (gtk_dialog_run(GTK_DIALOG(new_win)) == GTK_RESPONSE_ACCEPT)
|
|
{
|
|
firewall_save_as_ok_cb(new_win, new_win);
|
|
} else {
|
|
window_destroy(new_win);
|
|
}
|
|
#else
|
|
/* "Run" the GtkFileChooserDialog. */
|
|
/* Upon exit: If "Accept" run the OK callback. */
|
|
/* If the OK callback returns with a FALSE status, re-run the dialog.*/
|
|
/* If not accept (ie: cancel) destroy the window. */
|
|
/* XXX: If the OK callback pops up an alert box (eg: for an error) it *must* */
|
|
/* return with a TRUE status so that the dialog window will be destroyed. */
|
|
/* Trying to re-run the dialog after popping up an alert box will not work */
|
|
/* since the user will not be able to dismiss the alert box. */
|
|
/* The (somewhat unfriendly) effect: the user must re-invoke the */
|
|
/* GtkFileChooserDialog whenever the OK callback pops up an alert box. */
|
|
/* */
|
|
/* ToDo: use GtkFileChooserWidget in a dialog window instead of */
|
|
/* GtkFileChooserDialog. */
|
|
while (gtk_dialog_run(GTK_DIALOG(new_win)) == GTK_RESPONSE_ACCEPT) {
|
|
if (firewall_save_as_ok_cb(NULL, new_win)) {
|
|
break; /* we're done */
|
|
}
|
|
}
|
|
window_destroy(new_win);
|
|
#endif
|
|
}
|
|
|
|
|
|
static gboolean
|
|
firewall_save_as_ok_cb(GtkWidget * w _U_, gpointer fs)
|
|
{
|
|
gchar *to_name, *rule;
|
|
rule_info_t *rule_info;
|
|
FILE *fh;
|
|
gchar *dirname;
|
|
|
|
GtkTextIter start, end;
|
|
GtkTextBuffer *buf;
|
|
|
|
to_name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs));
|
|
|
|
/* 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());
|
|
gtk_file_chooser_set_current_name(fs, "");
|
|
return FALSE; /* run the dialog again */
|
|
}
|
|
|
|
rule_info = g_object_get_data(G_OBJECT(fs), WS_RULE_INFO_KEY);
|
|
fh = ws_fopen(to_name, "w");
|
|
if (fh == NULL) {
|
|
open_failure_alert_box(to_name, errno, TRUE);
|
|
g_free(to_name);
|
|
return TRUE;
|
|
}
|
|
|
|
buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(rule_info->text));
|
|
gtk_text_buffer_get_start_iter(buf, &start);
|
|
gtk_text_buffer_get_end_iter(buf, &end);
|
|
rule = gtk_text_buffer_get_text(buf, &start, &end, FALSE);
|
|
|
|
fputs(rule, fh);
|
|
fclose(fh);
|
|
|
|
#if 0 /* handled by caller (for now) */
|
|
gtk_widget_hide(GTK_WIDGET(fs));
|
|
window_destroy(GTK_WIDGET(fs));
|
|
#endif
|
|
/* 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);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
firewall_save_as_destroy_cb(GtkWidget * win _U_, gpointer data)
|
|
{
|
|
rule_info_t *rule_info = data;
|
|
|
|
/* Note that we no longer have a dialog box. */
|
|
rule_info->firewall_save_as_w = NULL;
|
|
}
|