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firewall.c
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firewall.c
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/*
* 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
*
* Copyright 2004, ASUSTeK Inc.
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND ASUS GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <dirent.h>
#include <bcmnvram.h>
#include <shutils.h>
#include <rc.h>
#include <stdarg.h>
#include <netdb.h> // for struct addrinfo
#include <proto/ethernet.h>
#define WEBSTRFILTER 1
#define CONTENTFILTER 1
#define foreach_x(x) for (i=0; i<atoi(nvram_safe_get(x)); i++)
#ifdef RTCONFIG_IPV6
char wan6face[IFNAMSIZ + 1];
// RFC-4890, sec. 4.3.1
const int allowed_icmpv6[] = { 1, 2, 3, 4, 128, 129 };
#endif
char *mac_conv(char *mac_name, int idx, char *buf); // oleg patch
void write_porttrigger(FILE *fp, char *wan_if, int is_nat);
void write_upnp_filter(FILE *fp, char *wan_if);
#ifdef WEB_REDIRECT
void redirect_setting();
#endif
struct datetime{
char start[6]; // start time
char stop[6]; // stop time
char tmpstop[6]; // cross-night stop time
} __attribute__((packed));
char *g_buf;
char g_buf_pool[1024];
void g_buf_init()
{
g_buf = g_buf_pool;
}
char *g_buf_alloc(char *g_buf_now)
{
g_buf += strlen(g_buf_now)+1;
return (g_buf_now);
}
/* overwrite all '/' with '_' */
static void remove_slash(char *str)
{
char *p = str;
if (!str || *str == '\0')
return;
while ((p = strchr(str, '/')) != NULL)
*p++ = '_';
}
int host_addr_info(const char *name, int af, struct sockaddr_storage *buf)
{
struct addrinfo hints;
struct addrinfo *res;
struct addrinfo *p;
int err;
int addrtypes = 0;
memset(&hints, 0, sizeof hints);
#ifdef RTCONFIG_IPV6
switch (af & (IPT_V4 | IPT_V6)) {
case IPT_V4:
hints.ai_family = AF_INET;
break;
case IPT_V6:
hints.ai_family = AF_INET6;
break;
//case (IPT_V4 | IPT_V6):
//case 0: // error?
default:
hints.ai_family = AF_UNSPEC;
}
#else
hints.ai_family = AF_INET;
#endif
hints.ai_socktype = SOCK_RAW;
if ((err = getaddrinfo(name, NULL, &hints, &res)) != 0) {
return addrtypes;
}
for(p = res; p != NULL; p = p->ai_next) {
switch(p->ai_family) {
case AF_INET:
addrtypes |= IPT_V4;
break;
case AF_INET6:
addrtypes |= IPT_V6;
break;
}
if (buf && (hints.ai_family == p->ai_family) && res->ai_addrlen) {
memcpy(buf, res->ai_addr, res->ai_addrlen);
}
}
freeaddrinfo(res);
return (addrtypes & af);
}
inline int host_addrtypes(const char *name, int af)
{
return host_addr_info(name, af, NULL);
}
int ipt_addr_compact(const char *s, int af, int strict)
{
char p[INET6_ADDRSTRLEN * 2];
int r = 0;
if ((s) && (*s))
{
if (sscanf(s, "%[0-9.]-%[0-9.]", p, p) == 2) {
r = IPT_V4;
}
#ifdef RTCONFIG_IPV6
else if (sscanf(s, "%[0-9A-Fa-f:]-%[0-9A-Fa-f:]", p, p) == 2) {
r = IPT_V6;
}
#endif
else {
if (sscanf(s, "%[^/]/", p)) {
#ifdef RTCONFIG_IPV6
r = host_addrtypes(p, strict ? af : (IPT_V4 | IPT_V6));
#else
r = host_addrtypes(p, IPT_V4);
#endif
}
}
}
else
{
r = (IPT_V4 | IPT_V6);
}
return (r & af);
}
/*
void nvram_unsets(char *name, int count)
{
char itemname_arr[32];
int i;
for (i=0; i<count; i++)
{
sprintf(itemname_arr, "%s%d", name, i);
nvram_unset(itemname_arr);
}
}
*/
char *proto_conv(char *proto, char *buf)
{
if (!strncasecmp(proto, "BOTH", 3)) strcpy(buf, "both");
else if (!strncasecmp(proto, "TCP", 3)) strcpy(buf, "tcp");
else if (!strncasecmp(proto, "UDP", 3)) strcpy(buf, "udp");
else if (!strncasecmp(proto, "OTHER", 5)) strcpy(buf, "other");
else strcpy(buf,"tcp");
return buf;
}
char *protoflag_conv(char *proto, char *buf, int isFlag)
{
if (!isFlag)
{
if (strncasecmp(proto, "UDP", 3)==0) strcpy(buf, "udp");
else strcpy(buf, "tcp");
}
else
{
if (strlen(proto)>3)
{
strcpy(buf, proto+4);
}
else strcpy(buf,"");
}
return (buf);
}
/*
char *portrange_ex_conv(char *port_name, int idx)
{
char *port, *strptr;
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", port_name, idx);
port=nvram_get(itemname_arr);
strcpy(g_buf, "");
if (!strncmp(port, ">", 1)) {
sprintf(g_buf, "%d-65535", atoi(port+1) + 1);
}
else if (!strncmp(port, "=", 1)) {
sprintf(g_buf, "%d-%d", atoi(port+1), atoi(port+1));
}
else if (!strncmp(port, "<", 1)) {
sprintf(g_buf, "1-%d", atoi(port+1) - 1);
}
//else if (strptr=strchr(port, ':'))
else if ((strptr=strchr(port, ':')) != NULL) //2008.11 magic oleg patch
{
strcpy(itemname_arr, port);
strptr = strchr(itemname_arr, ':');
sprintf(g_buf, "%d-%d", atoi(itemname_arr), atoi(strptr+1));
}
else if (*port)
{
sprintf(g_buf, "%d-%d", atoi(port), atoi(port));
}
else
{
//sprintf(g_buf, "");
g_buf[0] = 0; // oleg patch
}
return (g_buf_alloc(g_buf));
}
*/
char *portrange_ex2_conv(char *port_name, int idx, int *start, int *end)
{
char *port, *strptr;
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", port_name, idx);
port=nvram_get(itemname_arr);
strcpy(g_buf, "");
if (!strncmp(port, ">", 1))
{
sprintf(g_buf, "%d-65535", atoi(port+1) + 1);
*start=atoi(port+1);
*end=65535;
}
else if (!strncmp(port, "=", 1))
{
sprintf(g_buf, "%d-%d", atoi(port+1), atoi(port+1));
*start=*end=atoi(port+1);
}
else if (!strncmp(port, "<", 1))
{
sprintf(g_buf, "1-%d", atoi(port+1) - 1);
*start=1;
*end=atoi(port+1);
}
//else if (strptr=strchr(port, ':'))
else if ((strptr=strchr(port, ':')) != NULL) //2008.11 magic oleg patch
{
strcpy(itemname_arr, port);
strptr = strchr(itemname_arr, ':');
sprintf(g_buf, "%d-%d", atoi(itemname_arr), atoi(strptr+1));
*start=atoi(itemname_arr);
*end=atoi(strptr+1);
}
else if (*port)
{
sprintf(g_buf, "%d-%d", atoi(port), atoi(port));
*start=atoi(port);
*end=atoi(port);
}
else
{
//sprintf(g_buf, "");
g_buf[0] = 0; // oleg patch
*start=0;
*end=0;
}
return (g_buf_alloc(g_buf));
}
char *portrange_ex2_conv_new(char *port_name, int idx, int *start, int *end)
{
char *port, *strptr;
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", port_name, idx);
port=nvram_get(itemname_arr);
strcpy(g_buf, "");
if (!strncmp(port, ">", 1))
{
sprintf(g_buf, "%d-65535", atoi(port+1) + 1);
*start=atoi(port+1);
*end=65535;
}
else if (!strncmp(port, "=", 1))
{
sprintf(g_buf, "%d-%d", atoi(port+1), atoi(port+1));
*start=*end=atoi(port+1);
}
else if (!strncmp(port, "<", 1))
{
sprintf(g_buf, "1-%d", atoi(port+1) - 1);
*start=1;
*end=atoi(port+1);
}
else if ((strptr=strchr(port, ':')) != NULL)
{
strcpy(itemname_arr, port);
strptr = strchr(itemname_arr, ':');
sprintf(g_buf, "%d:%d", atoi(itemname_arr), atoi(strptr+1));
*start=atoi(itemname_arr);
*end=atoi(strptr+1);
}
else if (*port)
{
sprintf(g_buf, "%d:%d", atoi(port), atoi(port));
*start=atoi(port);
*end=atoi(port);
}
else
{
//sprintf(g_buf, "");
g_buf[0] = 0; // oleg patch
*start=0;
*end=0;
}
return (g_buf_alloc(g_buf));
}
char *portrange_conv(char *port_name, int idx)
{
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", port_name, idx);
strcpy(g_buf, nvram_safe_get(itemname_arr));
return (g_buf_alloc(g_buf));
}
/*
char *iprange_conv(char *ip_name, int idx)
{
char *ip;
char itemname_arr[32];
char startip[16], endip[16];
int i, j, k;
sprintf(itemname_arr,"%s%d", ip_name, idx);
ip=nvram_safe_get(itemname_arr);
//strcpy(g_buf, "");
g_buf[0] = 0; // 0313
// scan all ip string
i=j=k=0;
while (*(ip+i))
{
if (*(ip+i)=='*')
{
startip[j++] = '1';
endip[k++] = '2';
endip[k++] = '5';
endip[k++] = '4';
// 255 is for broadcast
}
else
{
startip[j++] = *(ip+i);
endip[k++] = *(ip+i);
}
i++;
}
startip[j++] = 0;
endip[k++] = 0;
if (strcmp(startip, endip)==0)
sprintf(g_buf, "%s", startip);
else
sprintf(g_buf, "%s-%s", startip, endip);
return (g_buf_alloc(g_buf));
}
char *iprange_ex_conv(char *ip_name, int idx)
{
char *ip;
char itemname_arr[32];
char startip[16], endip[16];
int i, j, k;
int mask;
sprintf(itemname_arr,"%s%d", ip_name, idx);
ip=nvram_safe_get(itemname_arr);
strcpy(g_buf, "");
// scan all ip string
i=j=k=0;
mask=32;
while (*(ip+i))
{
if (*(ip+i)=='*')
{
startip[j++] = '0';
endip[k++] = '0';
// 255 is for broadcast
mask-=8;
}
else
{
startip[j++] = *(ip+i);
endip[k++] = *(ip+i);
}
i++;
}
startip[j++] = 0;
endip[k++] = 0;
if (mask==32)
sprintf(g_buf, "%s", startip);
else if (mask==0)
strcpy(g_buf, "");
else sprintf(g_buf, "%s/%d", startip, mask);
return (g_buf_alloc(g_buf));
}
*/
char *ip_conv(char *ip_name, int idx)
{
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", ip_name, idx);
sprintf(g_buf, "%s", nvram_safe_get(itemname_arr));
return (g_buf_alloc(g_buf));
}
char *general_conv(char *ip_name, int idx)
{
char itemname_arr[32];
sprintf(itemname_arr,"%s%d", ip_name, idx);
sprintf(g_buf, "%s", nvram_safe_get(itemname_arr));
return (g_buf_alloc(g_buf));
}
char *filter_conv(char *proto, char *flag, char *srcip, char *srcport, char *dstip, char *dstport)
{
char newstr[64];
_dprintf("filter : %s,%s,%s,%s,%s,%s\n", proto, flag, srcip, srcport, dstip, dstport);
strcpy(g_buf, "");
if (strcmp(proto, "")!=0)
{
sprintf(newstr, " -p %s", proto);
strcat(g_buf, newstr);
}
if (strcmp(flag, "")!=0)
{
//sprintf(newstr, " --tcp-flags %s RST", flag);
sprintf(newstr, " --tcp-flags %s %s", flag, flag);
strcat(g_buf, newstr);
}
if (strcmp(srcip, "")!=0)
{
if (strchr(srcip , '-'))
sprintf(newstr, " --src-range %s", srcip);
else
sprintf(newstr, " -s %s", srcip);
strcat(g_buf, newstr);
}
if (strcmp(srcport, "")!=0)
{
sprintf(newstr, " --sport %s", srcport);
strcat(g_buf, newstr);
}
if (strcmp(dstip, "")!=0)
{
if (strchr(dstip, '-'))
sprintf(newstr, " --dst-range %s", dstip);
else
sprintf(newstr, " -d %s", dstip);
strcat(g_buf, newstr);
}
if (strcmp(dstport, "")!=0)
{
sprintf(newstr, " --dport %s", dstport);
strcat(g_buf, newstr);
}
return (g_buf);
//printf("str: %s\n", g_buf);
}
/*
* ret : 0 : invalid format
* ret : 1 : valid format
*/
int timematch_conv(char *mstr, char *nv_date, char *nv_time)
{
char *datestr[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char timestart[6], timestop[6];
char *time, *date;
int i, head;
int ret = 1;
date = nvram_safe_get(nv_date);
time = nvram_safe_get(nv_time);
if (strlen(date)!=7||strlen(time)!=8) {
ret = 0;
goto no_match;
}
if (strncmp(date, "0000000", 7)==0) {
ret = 0;
goto no_match;
}
if (strncmp(date, "1111111", 7)==0 &&
strncmp(time, "00002359", 8)==0) goto no_match;
i=0;
strncpy(timestart, time, 2);
i+=2;
timestart[i++] = ':';
strncpy(timestart+i, time+2, 2);
i+=2;
timestart[i]=0;
i=0;
strncpy(timestop, time+4, 2);
i+=2;
timestop[i++] = ':';
strncpy(timestop+i, time+6, 2);
i+=2;
timestop[i]=0;
if(strcmp(timestart, timestop)==0) {
ret = 0;
goto no_match;
}
//sprintf(mstr, "-m time --timestart %s:00 --timestop %s:00 --days ",
sprintf(mstr, "-m time --timestart %s --timestop %s " DAYS_PARAM,
timestart, timestop);
head=1;
for (i=0;i<7;i++)
{
if (*(date+i)=='1')
{
if (head)
{
sprintf(mstr, "%s %s", mstr, datestr[i]);
head=0;
}
else
{
sprintf(mstr, "%s,%s", mstr, datestr[i]);
}
}
}
return ret;
no_match:
//sprintf(mstr, "");
mstr[0] = 0; // oleg patch
return ret;
}
/*
* transfer string to time string
* ex. 1100 -> 11:00, 1359 -> 13:59
*
*/
char *str2time(char *str, char *buf){
int i;
i=0;
strncpy(buf, str, 2);
i+=2;
buf[i++] = ':';
strncpy(buf+i, str+2, 2);
i+=2;
buf[i]=0;
return (buf);
}
/*
* ret : 0 : invalid format
* ret : 1 : valid format
*/
int timematch_conv2(char *mstr, char *nv_date, char *nv_time, char *nv_time2)
{
char *datestr[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char timestart[6], timestop[6], timestart2[6], timestop2[6];
char *time, *time2, *date;
int i;
int ret = 1;
int dow = 0; // day of week
char buf[1024];
struct datetime datetime[7];
date = nvram_safe_get(nv_date);
time = nvram_safe_get(nv_time);
time2 = nvram_safe_get(nv_time2);
if (strlen(date)!=7||strlen(time)!=8||strlen(time2)!=8) {
ret = 0;
goto no_match;
}
if (strncmp(date, "0000000", 7)==0) {
ret = 0;
goto no_match;
}
if (strncmp(date, "1111111", 7)==0 &&
strncmp(time, "00002359", 8)==0 &&
strncmp(time2, "00002359", 8)==0) goto no_match;
// schedule day of week
for(i=0;i<=6;i++){
dow += (date[i]-'0') << (6-i);
}
// weekdays time
strncpy(timestart, time, 4);
strncpy(timestop, time+4, 4);
// weekend time
strncpy(timestart2, time2, 4);
strncpy(timestop2, time2+4, 4);
// initialize
memset(datetime, 0, sizeof(datetime));
//cprintf("%s: dow=%d, timestart=%d, timestop=%d, timestart2=%d, timestop2=%d, sizeof(datetime)=%d\n", __FUNCTION__, dow, atoi(timestart), atoi(timestop), atoi(timestart2), atoi(timestop2), sizeof(datetime)); //tmp test
// Sunday
if((dow & 0x40) != 0){
if(atoi(timestart2) < atoi(timestop2)){
strncpy(datetime[0].start, timestart2, 4);
strncpy(datetime[0].stop, timestop2, 4);
}
else{
strncpy(datetime[0].start, timestart2, 4);
strncpy(datetime[0].stop, "2359", 4);
strncpy(datetime[1].tmpstop, timestop2, 4);
}
}
// Monday to Friday
for(i=1;i<6;i++){
if((dow & 1<<(6-i)) != 0){
if(atoi(timestart) < atoi(timestop)){
strncpy(datetime[i].start, timestart, 4);
strncpy(datetime[i].stop, timestop, 4);
}
else{
strncpy(datetime[i].start, timestart, 4);
strncpy(datetime[i].stop, "2359", 4);
strncpy(datetime[i+1].tmpstop, timestop, 4);
}
}
}
// Saturday
if((dow & 0x01) != 0){
if(atoi(timestart2) < atoi(timestop2)){
strncpy(datetime[6].start, timestart2, 4);
strncpy(datetime[6].stop, timestop2, 4);
}
else{
strncpy(datetime[6].start, timestart2, 4);
strncpy(datetime[6].stop, "2359", 4);
strncpy(datetime[0].tmpstop, timestop2, 4);
}
}
for(i=0;i<7;i++){
//cprintf("%s: i=%d, start=%s, stop=%s, tmpstop=%s\n", __FUNCTION__, i, datetime[i].start, datetime[i].stop, datetime[i].tmpstop); //tmp test
// cascade cross-night time
if((strcmp(datetime[i].tmpstop, "")!=0)
&& (strcmp(datetime[i].start, "")!=0) && (strcmp(datetime[i].stop, "")!=0))
{
if((atoi(datetime[i].tmpstop) >= atoi(datetime[i].start))
&& (atoi(datetime[i].tmpstop) <= atoi(datetime[i].stop)))
{
strncpy(datetime[i].start, "0000", 4);
strncpy(datetime[i].tmpstop, "", 4);
}
else if (atoi(datetime[i].tmpstop) > atoi(datetime[i].stop))
{
strncpy(datetime[i].start, "0000", 4);
strncpy(datetime[i].stop, datetime[i].tmpstop, 4);
strncpy(datetime[i].tmpstop, "", 4);
}
}
//cprintf("%s: i=%d, start=%s, stop=%s, tmpstop=%s\n", __FUNCTION__, i, datetime[i].start, datetime[i].stop, datetime[i].tmpstop); //tmp test
char tmp1[6], tmp2[6];
memset(tmp1, 0, sizeof(tmp1));
memset(tmp2, 0, sizeof(tmp2));
memset(buf, 0, sizeof(buf));
// cross-night period
if(strcmp(datetime[i].tmpstop, "")!=0){
sprintf(buf, "%s-m time --timestop %s" DAYS_PARAM "%s", buf, str2time(datetime[i].tmpstop, tmp2), datestr[i]);
}
// normal period
if((strcmp(datetime[i].start, "")!=0) && (strcmp(datetime[i].stop, "")!=0)){
if(strcmp(buf, "")!=0) sprintf(buf, "%s>", buf); // add ">"
if((strcmp(datetime[i].start, "0000")==0) && (strcmp(datetime[i].stop, "2359")==0)){// whole day
sprintf(buf, "%s-m time" DAYS_PARAM "%s", buf, datestr[i]);
}
else if((strcmp(datetime[i].start, "0000")!=0) && (strcmp(datetime[i].stop, "2359")==0)){// start ~ 2359
sprintf(buf, "%s-m time --timestart %s" DAYS_PARAM "%s", buf, str2time(datetime[i].start, tmp1), datestr[i]);
}
else if((strcmp(datetime[i].start, "0000")==0) && (strcmp(datetime[i].stop, "2359")!=0)){// 0 ~ stop
sprintf(buf, "%s-m time --timestop %s" DAYS_PARAM "%s", buf, str2time(datetime[i].stop, tmp2), datestr[i]);
}
else if((strcmp(datetime[i].start, "0000")!=0) && (strcmp(datetime[i].stop, "2359")!=0)){// start ~ stop
sprintf(buf, "%s-m time --timestart %s --timestop %s" DAYS_PARAM "%s", buf, str2time(datetime[i].start, tmp1), str2time(datetime[i].stop, tmp2), datestr[i]);
}
}
if(strcmp(buf, "")!=0){
if(strcmp(mstr, "")==0)
sprintf(mstr, "%s", buf);
else
sprintf(mstr, "%s>%s", mstr, buf); // add ">"
}
//cprintf("%s: mstr=%s, len=%d\n", __FUNCTION__, mstr, strlen(mstr)); //tmp test
}
return ret;
no_match:
//sprintf(mstr, "");
mstr[0] = 0; // oleg patch
return ret;
}
char *iprange_ex_conv(char *ip, char *buf)
{
char startip[16], endip[16];
int i, j, k;
int mask;
strcpy(buf, "");
//printf("## iprange_ex_conv: %s, %d, %s\n", ip_name, idx, ip); // tmp test
// scan all ip string
i=j=k=0;
mask=32;
while (*(ip+i))
{
if (*(ip+i)=='*')
{
startip[j++] = '0';
endip[k++] = '0';
// 255 is for broadcast
mask-=8;
}
else
{
startip[j++] = *(ip+i);
endip[k++] = *(ip+i);
}
++i;
}
startip[j++] = 0;
endip[k++] = 0;
if (mask==32)
sprintf(buf, "%s", startip);
else if (mask==0)
strcpy(buf, "");
else sprintf(buf, "%s/%d", startip, mask);
//printf("\nmask is %d, g_buf is %s\n", mask, g_buf); // tmp test
return (buf);
}
void
p(int step)
{
_dprintf("P: %d %s\n", step, g_buf);
}
void
ip2class(char *lan_ip, char *netmask, char *buf)
{
unsigned int val, ip;
struct in_addr in;
int i=0;
// only handle class A,B,C
val = (unsigned int)inet_addr(netmask);
ip = (unsigned int)inet_addr(lan_ip);
/*
in.s_addr = ip & val;
if (val==0xff00000) sprintf(buf, "%s/8", inet_ntoa(in));
else if (val==0xffff0000) sprintf(buf, "%s/16", inet_ntoa(in));
else sprintf(buf, "%s/24", inet_ntoa(in));
*/
// oleg patch ~
in.s_addr = ip & val;
for (val = ntohl(val); val; i++)
val <<= 1;
sprintf(buf, "%s/%d", inet_ntoa(in), i);
// ~ oleg patch
//_dprintf("ip2class output: %s\n", buf);
}
void convert_routes(void)
{
int unit;
char tmp[100], prefix[] = "wanXXXXXXXXXX_";
char *nv, *nvp, *b;
char *ip, *netmask, *gateway, *metric, *interface;
char wroutes[1024], lroutes[1024], mroutes[1024];
/* Disable Static if it's not enable */
wroutes[0] = 0;
lroutes[0] = 0;
mroutes[0] = 0;
if (nvram_match("sr_enable_x", "1")) {
nv = nvp = strdup(nvram_safe_get("sr_rulelist"));
if (nv) {
while ((b = strsep(&nvp, "<")) != NULL) {
int i = 0;
char *routes;
if ((vstrsep(b, ">", &ip, &netmask, &gateway, &metric, &interface) != 5))
continue;
else if (strcmp(interface, "WAN") == 0)
routes = wroutes;
else if (strcmp(interface, "MAN") == 0)
routes = mroutes;
else if (strcmp(interface, "LAN") == 0)
routes = lroutes;
else
continue;
_dprintf("%x %s %s %s %s %s\n", ++i, ip, netmask, gateway, metric, interface);
sprintf(routes, "%s %s:%s:%s:%d", routes, ip, netmask, gateway, atoi(metric)+1);
}
free(nv);
}
}
nvram_set("lan_route", lroutes);
for (unit = WAN_UNIT_FIRST; unit < WAN_UNIT_MAX; unit++) {
snprintf(prefix, sizeof(prefix), "wan%d_", unit);
nvram_set(strcat_r(prefix, "route", tmp), wroutes);
nvram_set(strcat_r(prefix, "mroute", tmp), mroutes);
}
}
void
//write_upnp_forward(FILE *fp, FILE *fp1, char *wan_if, char *wan_ip, char *lan_if, char *lan_ip, char *lan_class, char *logaccept, char *logdrop)
write_upnp_forward(FILE *fp, char *wan_if, char *wan_ip, char *lan_if, char *lan_ip, char *lan_class, char *logaccept, char *logdrop) // oleg patch
{
char name[] = "forward_portXXXXXXXXXX", value[512];
char *wan_port0, *wan_port1, *lan_ipaddr, *lan_port0, *lan_port1, *proto;
char *enable, *desc;
int i;
/* Set wan_port0-wan_port1>lan_ipaddr:lan_port0-lan_port1,proto,enable,desc */
for (i=0 ; i<15 ; i++)
{
snprintf(name, sizeof(name), "forward_port%d", i);
strncpy(value, nvram_safe_get(name), sizeof(value));
/* Check for LAN IP address specification */
lan_ipaddr = value;
wan_port0 = strsep(&lan_ipaddr, ">");
if (!lan_ipaddr)
continue;
/* Check for LAN destination port specification */
lan_port0 = lan_ipaddr;
lan_ipaddr = strsep(&lan_port0, ":");
if (!lan_port0)
continue;
/* Check for protocol specification */
proto = lan_port0;
lan_port0 = strsep(&proto, ":,");
if (!proto)
continue;
/* Check for enable specification */
enable = proto;
proto = strsep(&enable, ":,");
if (!enable)
continue;
/* Check for description specification (optional) */
desc = enable;
enable = strsep(&desc, ":,");
/* Check for WAN destination port range (optional) */
wan_port1 = wan_port0;
wan_port0 = strsep(&wan_port1, "-");
if (!wan_port1)
wan_port1 = wan_port0;
/* Check for LAN destination port range (optional) */
lan_port1 = lan_port0;
lan_port0 = strsep(&lan_port1, "-");
if (!lan_port1)
lan_port1 = lan_port0;
/* skip if it's disabled */
if ( strcmp(enable, "off") == 0 )
continue;
/* -A PREROUTING -p tcp -m tcp --dport 823 -j DNAT
--to-destination 192.168.1.88:23 */
if ( !strcmp(proto,"tcp") || !strcmp(proto,"both") )
{
//fprintf(fp, "-A PREROUTING -p tcp -m tcp -d %s --dport %s "
fprintf(fp, "-A VSERVER -p tcp -m tcp --dport %s " // oleg patch
"-j DNAT --to-destination %s:%s\n"
//, wan_ip, wan_port0, lan_ipaddr, lan_port0); // oleg patch
//fprintf(fp1, "-A FORWARD -p tcp " // oleg patch
// "-m tcp -d %s --dport %s -j %s\n" // oleg patch
// , lan_ipaddr, lan_port0, logaccept); // oleg patch
, wan_port0, lan_ipaddr, lan_port0); // oleg patch
}
if ( !strcmp(proto,"udp") || !strcmp(proto,"both") ) {