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/*
*
* This is free software. You can redistribute it and/or modify under
* the terms of the GNU General Public License version 2.
*
* Copyright (C) 1998 by kra
*
*/
#include "hunt.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
struct list l_add_policy = LIST_INIT(struct add_policy_info, next);
int conn_add_match(unsigned int src_addr, unsigned int dst_addr,
unsigned short src_port, unsigned short dst_port)
{
struct list_iterator li;
struct add_policy_info *api;
int retval = 0;
list_lock(&l_add_policy);
list_iter_set(&li, &l_add_policy);
while ((api = list_iter_get(&li))) {
if ((src_addr & api->src_mask) == api->src_addr &&
(dst_addr & api->dst_mask) == api->dst_addr &&
port_match(src_port, api->src_ports) &&
port_match(dst_port, api->dst_ports)) {
retval = 1;
break;
}
if ((src_addr & api->src_mask) == api->dst_addr &&
(dst_addr & api->dst_mask) == api->src_addr &&
port_match(src_port, api->dst_ports) &&
port_match(dst_port, api->src_ports)) {
retval = 1;
break;
}
}
list_iter_end(&li);
list_unlock(&l_add_policy);
return retval;
}
int conn_add_policy(struct iphdr *iph, struct tcphdr *tcph)
{
return conn_add_match(iph->saddr, iph->daddr, tcph->source, tcph->dest);
}
void add_telnet_rlogin_policy(void)
{
struct add_policy_info *api;
api = malloc(sizeof(struct add_policy_info));
assert(api);
memset(api, 0, sizeof(sizeof(struct add_policy_info)));
api->src_addr = 0;
api->src_mask = 0;
api->dst_addr = 0;
api->dst_mask = 0;
api->src_ports[0] = 0;
api->dst_ports[0] = htons(23);
api->dst_ports[1] = htons(513);
api->dst_ports[2] = 0;
list_push(&l_add_policy, api);
};
static void addpolicy_item_print(int i, struct add_policy_info *api)
{
char buf_src_ports[BUFSIZE], buf_dst_ports[BUFSIZE];
char host_buf[BUFSIZE];
sprintf_db_ports(api->src_ports, buf_src_ports, sizeof(buf_src_ports), 1);
sprintf_db_ports(api->dst_ports, buf_dst_ports, sizeof(buf_dst_ports), 1);
sprintf(host_buf, "%s/%d [%s]", host_lookup(api->src_addr, hl_mode),
count_mask(api->src_mask), buf_src_ports);
printf("%2d) %-32s <--> %s/%d [%s]\n", i,
host_buf,
host_lookup(api->dst_addr, hl_mode), count_mask(api->dst_mask),
buf_dst_ports);
}
void addpolicy_list_items(void)
{
struct list_iterator li;
struct add_policy_info *api;
int i = 0;
list_iter_set(&li, &l_add_policy);
while ((api = list_iter_get(&li))) {
addpolicy_item_print(i++, api);
if (i % lines_o == 0)
lines_o_press_key();
}
list_iter_end(&li);
}
void addpolicy_add_item(void)
{
struct add_policy_info *api;
unsigned int src_ip, dst_ip;
unsigned int src_mask, dst_mask;
int src_ports[MAX_PORTS + 1], dst_ports[MAX_PORTS + 1];
int nr;
if (menu_choose_host_mask_ports_dfl("src ip addr/mask ports", &src_ip,
&src_mask, src_ports, 0, 0, NULL) < 0)
return;
if (menu_choose_host_mask_ports_dfl("dst ip addr/mask ports", &dst_ip,
&dst_mask, dst_ports, 0, 0, NULL) < 0)
return;
if ((nr = menu_choose_unr("insert at", 0, list_count(&l_add_policy), list_count(&l_add_policy))) == -1)
return;
api = malloc(sizeof(struct add_policy_info));
memset(api, 0, sizeof(struct add_policy_info));
api->src_addr = src_ip;
api->src_mask = src_mask;
port_htons(src_ports);
memcpy(api->src_ports, src_ports, sizeof(int) * (MAX_PORTS + 1));
api->dst_addr = dst_ip;
api->dst_mask = dst_mask;
port_htons(dst_ports);
memcpy(api->dst_ports, dst_ports, sizeof(int) * (MAX_PORTS + 1));
list_lock(&l_add_policy);
list_insert_at(&l_add_policy, nr, api);
list_unlock(&l_add_policy);
}
void addpolicy_mod_item(void)
{
struct add_policy_info *api;
unsigned int src_ip, dst_ip;
unsigned int src_mask, dst_mask;
int src_ports[MAX_PORTS + 1], dst_ports[MAX_PORTS + 1];
int nr;
addpolicy_list_items();
if ((nr = menu_choose_unr("choose item", 0, list_count(&l_add_policy) - 1, list_count(&l_add_policy) - 1)) == -1)
return;
if (!(api = list_at(&l_add_policy, nr)))
return;
if (menu_choose_host_mask_ports_dfl("src ip addr/mask ports",
&src_ip, &src_mask, src_ports,
api->src_addr, api->src_mask, api->src_ports) < 0)
return;
if (menu_choose_host_mask_ports_dfl("dst ip addr/mask ports",
&dst_ip, &dst_mask, dst_ports,
api->dst_addr, api->dst_mask, api->dst_ports) < 0)
return;
port_htons(src_ports);
port_htons(dst_ports);
list_lock(&l_add_policy);
api->src_addr = src_ip;
api->src_mask = src_mask;
memcpy(api->src_ports, src_ports, sizeof(int) * (MAX_PORTS + 1));
api->dst_addr = dst_ip;
api->dst_mask = dst_mask;
memcpy(api->dst_ports, dst_ports, sizeof(int) * (MAX_PORTS + 1));
list_unlock(&l_add_policy);
}
void addpolicy_del_item(void)
{
int i;
struct add_policy_info *api;
addpolicy_list_items();
i = menu_choose_unr("item nr. to delete", 0,
list_count(&l_add_policy) - 1, -1);
if (i >= 0) {
list_lock(&l_add_policy);
api = list_remove_at(&l_add_policy, i);
list_unlock(&l_add_policy);
free(api);
}
}
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