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For GUI For GoodbyeDPI #127

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For GUI For GoodbyeDPI #127

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2 changes: 2 additions & 0 deletions src/blackwhitelist.c
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,7 @@ int blackwhitelist_load_list(const char *filename) {
if (strlen(line) > HOST_MAXLEN) {
printf("WARNING: host %s exceeds maximum host length and has not been added\n",
line);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
continue;
}
if (strlen(line) < 4)
Expand All @@ -80,6 +81,7 @@ int blackwhitelist_load_list(const char *filename) {
free(line);
if (!blackwhitelist) return FALSE;
printf("Loaded %d hosts from file %s\n", cnt, filename);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
fclose(fp);
return TRUE;
}
Expand Down
2 changes: 2 additions & 0 deletions src/dnsredir.c
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Original file line number Diff line number Diff line change
Expand Up @@ -50,12 +50,14 @@ void flush_dns_cache() {
if (dnsapi == NULL)
{
printf("Can't load dnsapi.dll to flush DNS cache!\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
exit(EXIT_FAILURE);
}

DnsFlushResolverCache = (void*)GetProcAddress(dnsapi, "DnsFlushResolverCache");
if (DnsFlushResolverCache == NULL || !DnsFlushResolverCache())
printf("Can't flush DNS cache!");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
FreeLibrary(dnsapi);
}

Expand Down
49 changes: 33 additions & 16 deletions src/goodbyedpi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -82,17 +82,8 @@ WINSOCK_API_LINKAGE INT WSAAPI inet_pton(INT Family, LPCSTR pStringBuf, PVOID pA
"(tcp.SrcPort == 443 or tcp.SrcPort == 80) and tcp.Rst and " \
DIVERT_NO_LOCALNETSv4_SRC

#define SET_HTTP_FRAGMENT_SIZE_OPTION(fragment_size) do { \
if (!http_fragment_size) { \
http_fragment_size = (unsigned int)fragment_size; \
} \
else if (http_fragment_size != (unsigned int)fragment_size) { \
printf( \
"WARNING: HTTP fragment size is already set to %d, not changing.\n", \
http_fragment_size \
); \
} \
} while (0)
#define SET_HTTP_FRAGMENT_SIZE_OPTION(fragment_size) do{ if (!http_fragment_size) { http_fragment_size = (unsigned int)fragment_size; }else if (http_fragment_size != (unsigned int)fragment_size) { printf("WARNING: HTTP fragment size is already set to %d, not changing.\n", http_fragment_size );fflush(stdout); } }while(0)


static int running_from_service = 0;
static HANDLE filters[MAX_FILTERS];
Expand Down Expand Up @@ -142,10 +133,15 @@ static void add_filter_str(int proto, int port) {

strcpy(new_filter, current_filter);
if (proto == IPPROTO_UDP)
{
sprintf(&(new_filter[strlen(new_filter)]), udp, port, port);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
}
else
{
sprintf(&(new_filter[strlen(new_filter)]), tcp, port, port);

fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
}
filter_string = new_filter;
free(current_filter);
}
Expand All @@ -156,6 +152,7 @@ static void add_ip_id_str(int id) {
char *addfilter = malloc(strlen(ipid) + 16);

sprintf(addfilter, ipid, id);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI

newstr = repl_str(filter_string, IPID_TEMPLATE, addfilter);
free(filter_string);
Expand Down Expand Up @@ -200,6 +197,7 @@ unsigned short int atousi(const char *str, const char *msg) {

if(res > limitValue) {
puts(msg);
fflush(stdout);
exit(EXIT_FAILURE);
}
return (unsigned short int)res;
Expand All @@ -218,6 +216,7 @@ static HANDLE init(char *filter, UINT64 flags) {
NULL, errorcode, MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT),
(LPTSTR)&errormessage, 0, NULL);
printf("Error opening filter: %s", errormessage);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
LocalFree(errormessage);
if (errorcode == 577)
printf("Windows Server 2016 systems must have secure boot disabled to be "
Expand All @@ -229,6 +228,7 @@ static HANDLE init(char *filter, UINT64 flags) {
"Most probably, you don't have security patches installed and anyone in you LAN or "
"public Wi-Fi network can get full access to your computer (MS17-010 and others).\n"
"You should install updates IMMEDIATELY.\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
return NULL;
}

Expand Down Expand Up @@ -338,7 +338,7 @@ static PVOID find_http_method_end(const char *pkt, unsigned int http_frag, int *
return NULL;
}

int main(int argc, char *argv[]) {
int main(int argc, char *argv[]){
static enum packet_type_e {
unknown,
ipv4_tcp, ipv4_tcp_data, ipv4_udp_data,
Expand Down Expand Up @@ -414,6 +414,7 @@ int main(int argc, char *argv[]) {
": Passive DPI blocker and Active DPI circumvention utility\n"
"https://github.com/ValdikSS/GoodbyeDPI\n\n"
);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI

if (argc == 1) {
/* enable mode -1 by default */
Expand All @@ -424,7 +425,7 @@ int main(int argc, char *argv[]) {
= do_fragment_http_persistent_nowait = 1;
}

while ((opt = getopt_long(argc, argv, "1234prsaf:e:mwk:n", long_options, NULL)) != -1) {
while ((opt = getopt_long(argc, argv, "1234prsaf:e:mwk:n", long_options, NULL)) != -1){
switch (opt) {
case '1':
do_passivedpi = do_host = do_host_removespace \
Expand Down Expand Up @@ -486,6 +487,7 @@ int main(int argc, char *argv[]) {
i = atoi(optarg);
if (i <= 0 || i > 65535) {
printf("Port parameter error!\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
exit(EXIT_FAILURE);
}
if (i != 80 && i != 443)
Expand All @@ -505,13 +507,15 @@ int main(int argc, char *argv[]) {
do_dnsv4_redirect = 1;
if (inet_pton(AF_INET, optarg, &dnsv4_addr) != 1) {
puts("DNS address parameter error!");
fflush(stdout);
exit(EXIT_FAILURE);
}
add_filter_str(IPPROTO_UDP, 53);
flush_dns_cache();
break;
}
puts("DNS address parameter error!");
fflush(stdout);
exit(EXIT_FAILURE);
break;
case '!':
Expand All @@ -521,20 +525,23 @@ int main(int argc, char *argv[]) {
do_dnsv6_redirect = 1;
if (inet_pton(AF_INET6, optarg, dnsv6_addr.s6_addr) != 1) {
puts("DNS address parameter error!");
fflush(stdout);
exit(EXIT_FAILURE);
}
add_filter_str(IPPROTO_UDP, 53);
flush_dns_cache();
break;
}
puts("DNS address parameter error!");
fflush(stdout);
exit(EXIT_FAILURE);
break;
case 'g':
if (!do_dnsv4_redirect) {
puts("--dns-port should be used with --dns-addr!\n"
"Make sure you use --dns-addr and pass it before "
"--dns-port");
fflush(stdout);
exit(EXIT_FAILURE);
}
dnsv4_port = atousi(optarg, "DNS port parameter error!");
Expand All @@ -548,6 +555,7 @@ int main(int argc, char *argv[]) {
puts("--dnsv6-port should be used with --dnsv6-addr!\n"
"Make sure you use --dnsv6-addr and pass it before "
"--dnsv6-port");
fflush(stdout);
exit(EXIT_FAILURE);
}
dnsv6_port = atousi(optarg, "DNS port parameter error!");
Expand All @@ -563,6 +571,7 @@ int main(int argc, char *argv[]) {
do_blacklist = 1;
if (!blackwhitelist_load_list(optarg)) {
printf("Can't load blacklist from file!\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
exit(EXIT_FAILURE);
}
break;
Expand Down Expand Up @@ -592,6 +601,7 @@ int main(int argc, char *argv[]) {
" -2 -p -r -s -f 2 -k 2 -n -e 40 (better speed for HTTPS yet still compatible)\n"
" -3 -p -r -s -e 40 (better speed for HTTP and HTTPS)\n"
" -4 -p -r -s (best speed)");
fflush(stdout);
exit(EXIT_FAILURE);
}
}
Expand All @@ -612,14 +622,17 @@ int main(int argc, char *argv[]) {
do_http_allports, do_fragment_http_persistent_nowait, do_dnsv4_redirect,
do_dnsv6_redirect
);
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI

if (do_fragment_http && http_fragment_size > 2) {
printf("WARNING: HTTP fragmentation values > 2 are not fully compatible "
"with other options. Please use values <= 2 or disable HTTP fragmentation "
"completely.\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
}

printf("\nOpening filter\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
finalize_filter_strings();
filter_num = 0;

Expand Down Expand Up @@ -648,9 +661,10 @@ int main(int argc, char *argv[]) {
}

printf("Filter activated!\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
signal(SIGINT, sigint_handler);

while (1) {
while(1){
if (WinDivertRecv(w_filter, packet, sizeof(packet), &addr, &packetLen)) {
debug("Got %s packet, len=%d!\n", addr.Direction ? "inbound" : "outbound",
packetLen);
Expand Down Expand Up @@ -936,6 +950,7 @@ int main(int argc, char *argv[]) {
if (do_dns_verb && !should_reinject) {
printf("[DNS] Error handling incoming packet: srcport = %hu, dstport = %hu\n",
ntohs(ppUdpHdr->SrcPort), ntohs(ppUdpHdr->DstPort));
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
}
}
}
Expand Down Expand Up @@ -968,6 +983,7 @@ int main(int argc, char *argv[]) {
if (do_dns_verb && !should_reinject) {
printf("[DNS] Error handling outgoing packet: srcport = %hu, dstport = %hu\n",
ntohs(ppUdpHdr->SrcPort), ntohs(ppUdpHdr->DstPort));
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
}
}
}
Expand All @@ -984,7 +1000,8 @@ int main(int argc, char *argv[]) {
else {
// error, ignore
printf("Error receiving packet!\n");
fflush(stdout); // In order to properly work with GUI for GoodbyeDPI
break;
}
}
}
}