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autottl, datanoack, oob, postnat

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bol-van
2024-03-02 17:53:37 +03:00
parent 2157fed592
commit 8a161f1f49
48 changed files with 597 additions and 249 deletions
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172
nfq/nfqws.c
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@@ -540,7 +540,9 @@ static void exithelp(void)
#endif
" --dpi-desync-ttl=<int>\t\t\t\t; set ttl for desync packet\n"
" --dpi-desync-ttl6=<int>\t\t\t; set ipv6 hop limit for desync packet. by default ttl value is used.\n"
" --dpi-desync-fooling=<mode>[,<mode>]\t\t; can use multiple comma separated values. modes : none md5sig ts badseq badsum hopbyhop hopbyhop2\n"
" --dpi-desync-autottl=[<delta>[:<min>[-<max>]]]\t; auto ttl mode for both ipv4 and ipv6. default: %u:%u-%u\n"
" --dpi-desync-autottl6=[<delta>[:<min>[-<max>]]] ; overrides --dpi-desync-autottl for ipv6 only\n"
" --dpi-desync-fooling=<mode>[,<mode>]\t\t; can use multiple comma separated values. modes : none md5sig ts badseq badsum datanoack hopbyhop hopbyhop2\n"
#ifdef __linux__
" --dpi-desync-retrans=0|1\t\t\t; 0(default)=reinject original data packet after fake 1=drop original data packet to force its retransmission\n"
#endif
@@ -573,6 +575,7 @@ static void exithelp(void)
#if defined(__linux__) || defined(SO_USER_COOKIE)
DPI_DESYNC_FWMARK_DEFAULT,DPI_DESYNC_FWMARK_DEFAULT,
#endif
AUTOTTL_DEFAULT_DELTA,AUTOTTL_DEFAULT_MIN,AUTOTTL_DEFAULT_MAX,
DPI_DESYNC_MAX_FAKE_LEN,
DPI_DESYNC_MAX_FAKE_LEN, IPFRAG_UDP_DEFAULT,
DPI_DESYNC_MAX_FAKE_LEN, IPFRAG_TCP_DEFAULT,
@@ -643,6 +646,31 @@ static void load_file_or_exit(const char *filename, void *buf, size_t *size)
}
}
bool parse_autottl(const char *s, autottl *t)
{
unsigned int delta,min,max;
AUTOTTL_SET_DEFAULT(*t);
if (s)
{
max = t->max;
switch (sscanf(s,"%u:%u-%u",&delta,&min,&max))
{
case 3:
if (delta && !max || max>255) return false;
t->max=(uint8_t)max;
case 2:
if (delta && !min || min>255 || min>max) return false;
t->min=(uint8_t)min;
case 1:
if (delta>255) return false;
t->delta=(uint8_t)delta;
break;
default:
return false;
}
}
return true;
}
int main(int argc, char **argv)
{
@@ -727,37 +755,39 @@ int main(int argc, char **argv)
#endif
{"dpi-desync-ttl",required_argument,0,0}, // optidx=16
{"dpi-desync-ttl6",required_argument,0,0}, // optidx=17
{"dpi-desync-fooling",required_argument,0,0}, // optidx=18
{"dpi-desync-retrans",optional_argument,0,0}, // optidx=19
{"dpi-desync-repeats",required_argument,0,0}, // optidx=20
{"dpi-desync-skip-nosni",optional_argument,0,0},// optidx=21
{"dpi-desync-split-pos",required_argument,0,0},// optidx=22
{"dpi-desync-ipfrag-pos-tcp",required_argument,0,0},// optidx=23
{"dpi-desync-ipfrag-pos-udp",required_argument,0,0},// optidx=24
{"dpi-desync-badseq-increment",required_argument,0,0},// optidx=25
{"dpi-desync-badack-increment",required_argument,0,0},// optidx=26
{"dpi-desync-any-protocol",optional_argument,0,0},// optidx=27
{"dpi-desync-fake-http",required_argument,0,0},// optidx=28
{"dpi-desync-fake-tls",required_argument,0,0},// optidx=29
{"dpi-desync-fake-unknown",required_argument,0,0},// optidx=30
{"dpi-desync-fake-quic",required_argument,0,0},// optidx=31
{"dpi-desync-fake-wireguard",required_argument,0,0},// optidx=32
{"dpi-desync-fake-dht",required_argument,0,0},// optidx=33
{"dpi-desync-fake-unknown-udp",required_argument,0,0},// optidx=34
{"dpi-desync-udplen-increment",required_argument,0,0},// optidx=35
{"dpi-desync-udplen-pattern",required_argument,0,0},// optidx=36
{"dpi-desync-cutoff",required_argument,0,0},// optidx=37
{"hostlist",required_argument,0,0}, // optidx=38
{"hostlist-exclude",required_argument,0,0}, // optidx=39
{"hostlist-auto",required_argument,0,0}, // optidx=40
{"hostlist-auto-fail-threshold",required_argument,0,0}, // optidx=41
{"hostlist-auto-fail-time",required_argument,0,0}, // optidx=42
{"hostlist-auto-retrans-threshold",required_argument,0,0}, // optidx=43
{"hostlist-auto-debug",required_argument,0,0}, // optidx=44
{"dpi-desync-autottl",optional_argument,0,0}, // optidx=18
{"dpi-desync-autottl6",optional_argument,0,0}, // optidx=19
{"dpi-desync-fooling",required_argument,0,0}, // optidx=20
{"dpi-desync-retrans",optional_argument,0,0}, // optidx=21
{"dpi-desync-repeats",required_argument,0,0}, // optidx=22
{"dpi-desync-skip-nosni",optional_argument,0,0},// optidx=23
{"dpi-desync-split-pos",required_argument,0,0},// optidx=24
{"dpi-desync-ipfrag-pos-tcp",required_argument,0,0},// optidx=25
{"dpi-desync-ipfrag-pos-udp",required_argument,0,0},// optidx=26
{"dpi-desync-badseq-increment",required_argument,0,0},// optidx=27
{"dpi-desync-badack-increment",required_argument,0,0},// optidx=28
{"dpi-desync-any-protocol",optional_argument,0,0},// optidx=29
{"dpi-desync-fake-http",required_argument,0,0},// optidx=30
{"dpi-desync-fake-tls",required_argument,0,0},// optidx=31
{"dpi-desync-fake-unknown",required_argument,0,0},// optidx=32
{"dpi-desync-fake-quic",required_argument,0,0},// optidx=33
{"dpi-desync-fake-wireguard",required_argument,0,0},// optidx=34
{"dpi-desync-fake-dht",required_argument,0,0},// optidx=35
{"dpi-desync-fake-unknown-udp",required_argument,0,0},// optidx=36
{"dpi-desync-udplen-increment",required_argument,0,0},// optidx=37
{"dpi-desync-udplen-pattern",required_argument,0,0},// optidx=38
{"dpi-desync-cutoff",required_argument,0,0},// optidx=39
{"hostlist",required_argument,0,0}, // optidx=40
{"hostlist-exclude",required_argument,0,0}, // optidx=41
{"hostlist-auto",required_argument,0,0}, // optidx=42
{"hostlist-auto-fail-threshold",required_argument,0,0}, // optidx=43
{"hostlist-auto-fail-time",required_argument,0,0}, // optidx=44
{"hostlist-auto-retrans-threshold",required_argument,0,0}, // optidx=45
{"hostlist-auto-debug",required_argument,0,0}, // optidx=46
#ifdef __linux__
{"bind-fix4",no_argument,0,0}, // optidx=45
{"bind-fix6",no_argument,0,0}, // optidx=46
{"bind-fix4",no_argument,0,0}, // optidx=47
{"bind-fix6",no_argument,0,0}, // optidx=48
#endif
{NULL,0,NULL,0}
};
@@ -924,7 +954,21 @@ int main(int argc, char **argv)
case 17: /* dpi-desync-ttl6 */
params.desync_ttl6 = (uint8_t)atoi(optarg);
break;
case 18: /* dpi-desync-fooling */
case 18: /* dpi-desync-autottl */
if (!parse_autottl(optarg, &params.desync_autottl))
{
fprintf(stderr, "dpi-desync-autottl value error\n");
exit_clean(1);
}
break;
case 19: /* dpi-desync-autottl6 */
if (!parse_autottl(optarg, &params.desync_autottl6))
{
fprintf(stderr, "dpi-desync-autottl6 value error\n");
exit_clean(1);
}
break;
case 20: /* dpi-desync-fooling */
{
char *e,*p = optarg;
while (p)
@@ -944,20 +988,22 @@ int main(int argc, char **argv)
}
else if (!strcmp(p,"badseq"))
params.desync_fooling_mode |= FOOL_BADSEQ;
else if (!strcmp(p,"datanoack"))
params.desync_fooling_mode |= FOOL_DATANOACK;
else if (!strcmp(p,"hopbyhop"))
params.desync_fooling_mode |= FOOL_HOPBYHOP;
else if (!strcmp(p,"hopbyhop2"))
params.desync_fooling_mode |= FOOL_HOPBYHOP2;
else if (strcmp(p,"none"))
{
fprintf(stderr, "dpi-desync-fooling allowed values : none,md5sig,ts,badseq,badsum,hopbyhop,hopbyhop2\n");
fprintf(stderr, "dpi-desync-fooling allowed values : none,md5sig,ts,badseq,badsum,datanoack,hopbyhop,hopbyhop2\n");
exit_clean(1);
}
p = e;
}
}
break;
case 19: /* dpi-desync-retrans */
case 21: /* dpi-desync-retrans */
#ifdef __linux__
params.desync_retrans = !optarg || atoi(optarg);
#else
@@ -965,24 +1011,24 @@ int main(int argc, char **argv)
exit_clean(1);
#endif
break;
case 20: /* dpi-desync-repeats */
case 22: /* dpi-desync-repeats */
if (sscanf(optarg,"%u",&params.desync_repeats)<1 || !params.desync_repeats || params.desync_repeats>20)
{
fprintf(stderr, "dpi-desync-repeats must be within 1..20\n");
exit_clean(1);
}
break;
case 21: /* dpi-desync-skip-nosni */
case 23: /* dpi-desync-skip-nosni */
params.desync_skip_nosni = !optarg || atoi(optarg);
break;
case 22: /* dpi-desync-split-pos */
case 24: /* dpi-desync-split-pos */
if (sscanf(optarg,"%u",&params.desync_split_pos)<1 || params.desync_split_pos<1 || params.desync_split_pos>DPI_DESYNC_MAX_FAKE_LEN)
{
fprintf(stderr, "dpi-desync-split-pos must be within 1..%u range\n",DPI_DESYNC_MAX_FAKE_LEN);
exit_clean(1);
}
break;
case 23: /* dpi-desync-ipfrag-pos-tcp */
case 25: /* dpi-desync-ipfrag-pos-tcp */
if (sscanf(optarg,"%u",&params.desync_ipfrag_pos_tcp)<1 || params.desync_ipfrag_pos_tcp<1 || params.desync_ipfrag_pos_tcp>DPI_DESYNC_MAX_FAKE_LEN)
{
fprintf(stderr, "dpi-desync-ipfrag-pos-tcp must be within 1..%u range\n",DPI_DESYNC_MAX_FAKE_LEN);
@@ -994,7 +1040,7 @@ int main(int argc, char **argv)
exit_clean(1);
}
break;
case 24: /* dpi-desync-ipfrag-pos-udp */
case 26: /* dpi-desync-ipfrag-pos-udp */
if (sscanf(optarg,"%u",&params.desync_ipfrag_pos_udp)<1 || params.desync_ipfrag_pos_udp<1 || params.desync_ipfrag_pos_udp>DPI_DESYNC_MAX_FAKE_LEN)
{
fprintf(stderr, "dpi-desync-ipfrag-pos-udp must be within 1..%u range\n",DPI_DESYNC_MAX_FAKE_LEN);
@@ -1006,59 +1052,59 @@ int main(int argc, char **argv)
exit_clean(1);
}
break;
case 25: /* dpi-desync-badseq-increments */
case 27: /* dpi-desync-badseq-increments */
if (!parse_badseq_increment(optarg,&params.desync_badseq_increment))
{
fprintf(stderr, "dpi-desync-badseq-increment should be signed decimal or signed 0xHEX\n");
exit_clean(1);
}
break;
case 26: /* dpi-desync-badack-increment */
case 28: /* dpi-desync-badack-increment */
if (!parse_badseq_increment(optarg,&params.desync_badseq_ack_increment))
{
fprintf(stderr, "dpi-desync-badack-increment should be signed decimal or signed 0xHEX\n");
exit_clean(1);
}
break;
case 27: /* dpi-desync-any-protocol */
case 29: /* dpi-desync-any-protocol */
params.desync_any_proto = !optarg || atoi(optarg);
break;
case 28: /* dpi-desync-fake-http */
case 30: /* dpi-desync-fake-http */
params.fake_http_size = sizeof(params.fake_http);
load_file_or_exit(optarg,params.fake_http,&params.fake_http_size);
break;
case 29: /* dpi-desync-fake-tls */
case 31: /* dpi-desync-fake-tls */
params.fake_tls_size = sizeof(params.fake_tls);
load_file_or_exit(optarg,params.fake_tls,&params.fake_tls_size);
break;
case 30: /* dpi-desync-fake-unknown */
case 32: /* dpi-desync-fake-unknown */
params.fake_unknown_size = sizeof(params.fake_unknown);
load_file_or_exit(optarg,params.fake_unknown,&params.fake_unknown_size);
break;
case 31: /* dpi-desync-fake-quic */
case 33: /* dpi-desync-fake-quic */
params.fake_quic_size = sizeof(params.fake_quic);
load_file_or_exit(optarg,params.fake_quic,&params.fake_quic_size);
break;
case 32: /* dpi-desync-fake-wireguard */
case 34: /* dpi-desync-fake-wireguard */
params.fake_wg_size = sizeof(params.fake_wg);
load_file_or_exit(optarg,params.fake_wg,&params.fake_wg_size);
break;
case 33: /* dpi-desync-fake-dht */
case 35: /* dpi-desync-fake-dht */
params.fake_dht_size = sizeof(params.fake_dht);
load_file_or_exit(optarg,params.fake_dht,&params.fake_dht_size);
break;
case 34: /* dpi-desync-fake-unknown-udp */
case 36: /* dpi-desync-fake-unknown-udp */
params.fake_unknown_udp_size = sizeof(params.fake_unknown_udp);
load_file_or_exit(optarg,params.fake_unknown_udp,&params.fake_unknown_udp_size);
break;
case 35: /* dpi-desync-udplen-increment */
case 37: /* dpi-desync-udplen-increment */
if (sscanf(optarg,"%d",&params.udplen_increment)<1 || params.udplen_increment>0x7FFF || params.udplen_increment<-0x8000)
{
fprintf(stderr, "dpi-desync-udplen-increment must be integer within -32768..32767 range\n");
exit_clean(1);
}
break;
case 36: /* dpi-desync-udplen-pattern */
case 38: /* dpi-desync-udplen-pattern */
{
char buf[sizeof(params.udplen_pattern)];
size_t sz=sizeof(buf);
@@ -1066,28 +1112,28 @@ int main(int argc, char **argv)
fill_pattern(params.udplen_pattern,sizeof(params.udplen_pattern),buf,sz);
}
break;
case 37: /* desync-cutoff */
case 39: /* desync-cutoff */
if (!parse_cutoff(optarg, &params.desync_cutoff, &params.desync_cutoff_mode))
{
fprintf(stderr, "invalid desync-cutoff value\n");
exit_clean(1);
}
break;
case 38: /* hostlist */
case 40: /* hostlist */
if (!strlist_add(&params.hostlist_files, optarg))
{
fprintf(stderr, "strlist_add failed\n");
exit_clean(1);
}
break;
case 39: /* hostlist-exclude */
case 41: /* hostlist-exclude */
if (!strlist_add(&params.hostlist_exclude_files, optarg))
{
fprintf(stderr, "strlist_add failed\n");
exit_clean(1);
}
break;
case 40: /* hostlist-auto */
case 42: /* hostlist-auto */
if (*params.hostlist_auto_filename)
{
fprintf(stderr, "only one auto hostlist is supported\n");
@@ -1118,7 +1164,7 @@ int main(int argc, char **argv)
strncpy(params.hostlist_auto_filename, optarg, sizeof(params.hostlist_auto_filename));
params.hostlist_auto_filename[sizeof(params.hostlist_auto_filename) - 1] = '\0';
break;
case 41: /* hostlist-auto-fail-threshold */
case 43: /* hostlist-auto-fail-threshold */
params.hostlist_auto_fail_threshold = (uint8_t)atoi(optarg);
if (params.hostlist_auto_fail_threshold<1 || params.hostlist_auto_fail_threshold>20)
{
@@ -1126,7 +1172,7 @@ int main(int argc, char **argv)
exit_clean(1);
}
break;
case 42: /* hostlist-auto-fail-time */
case 44: /* hostlist-auto-fail-time */
params.hostlist_auto_fail_time = (uint8_t)atoi(optarg);
if (params.hostlist_auto_fail_time<1)
{
@@ -1134,7 +1180,7 @@ int main(int argc, char **argv)
exit_clean(1);
}
break;
case 43: /* hostlist-auto-retrans-threshold */
case 45: /* hostlist-auto-retrans-threshold */
params.hostlist_auto_retrans_threshold = (uint8_t)atoi(optarg);
if (params.hostlist_auto_retrans_threshold<2 || params.hostlist_auto_retrans_threshold>10)
{
@@ -1142,7 +1188,7 @@ int main(int argc, char **argv)
exit_clean(1);
}
break;
case 44: /* hostlist-auto-debug */
case 46: /* hostlist-auto-debug */
{
FILE *F = fopen(optarg,"a+t");
if (!F)
@@ -1158,10 +1204,10 @@ int main(int argc, char **argv)
}
break;
#ifdef __linux__
case 45: /* bind-fix4 */
case 47: /* bind-fix4 */
params.bind_fix4 = true;
break;
case 46: /* bind-fix6 */
case 48: /* bind-fix6 */
params.bind_fix6 = true;
break;
#endif
@@ -1169,6 +1215,12 @@ int main(int argc, char **argv)
}
// not specified - use desync_ttl value instead
if (params.desync_ttl6 == 0xFF) params.desync_ttl6=params.desync_ttl;
if (!AUTOTTL_ENABLED(params.desync_autottl6)) params.desync_autottl6 = params.desync_autottl;
if (AUTOTTL_ENABLED(params.desync_autottl))
DLOG("autottl ipv4 %u:%u-%u\n",params.desync_autottl.delta,params.desync_autottl.min,params.desync_autottl.max)
if (AUTOTTL_ENABLED(params.desync_autottl6))
DLOG("autottl ipv6 %u:%u-%u\n",params.desync_autottl6.delta,params.desync_autottl6.min,params.desync_autottl6.max)
#ifdef BSD
if (!params.port)
{