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tpws: specify oob byte . tamper pos range limiter

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bol-van
2024-03-05 14:59:44 +03:00
parent 8b38cccee2
commit 663a2bb2a4
14 changed files with 53 additions and 18 deletions
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34
tpws/tpws.c
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@@ -176,7 +176,7 @@ static void exithelp(void)
#else
" --disorder\t\t\t\t; when splitting simulate sending second fragment first\n"
#endif
" --oob\t\t\t\t\t; when splitting send out of band zero byte\n"
" --oob[=<char>|0xHEX]\t\t\t; when splitting send out of band byte. default is HEX 0x00.\n"
" --hostcase\t\t\t\t; change Host: => host:\n"
" --hostspell\t\t\t\t; exact spelling of \"Host\" header. must be 4 chars. default is \"host\"\n"
" --hostdot\t\t\t\t; add \".\" after Host: name\n"
@@ -188,7 +188,9 @@ static void exithelp(void)
" --methodeol\t\t\t\t; add end-of-line before method\n"
" --unixeol\t\t\t\t; replace 0D0A to 0A\n"
" --tlsrec=sni\t\t\t\t; make 2 TLS records. split at SNI. don't split if SNI is not present\n"
" --tlsrec-pos=<pos>\t\t\t; make 2 TLS records. split at specified pos\n",
" --tlsrec-pos=<pos>\t\t\t; make 2 TLS records. split at specified pos\n"
" --tamper-start=<pos>\t\t\t; start tampering only from specified outbound stream position. default is 0.\n"
" --tamper-cutoff=<pos>\t\t\t; do not tamper anymore after specified outbound stream position. default is unlimited.\n",
HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT, HOSTLIST_AUTO_FAIL_TIME_DEFAULT
);
exit(1);
@@ -295,7 +297,7 @@ void parse_params(int argc, char *argv[])
{ "split-pos",required_argument,0,0 },// optidx=24
{ "split-any-protocol",optional_argument,0,0},// optidx=25
{ "disorder",no_argument,0,0 },// optidx=26
{ "oob",no_argument,0,0 },// optidx=27
{ "oob",optional_argument,0,0 },// optidx=27
{ "methodspace",no_argument,0,0 },// optidx=28
{ "methodeol",no_argument,0,0 },// optidx=29
{ "hosttab",no_argument,0,0 },// optidx=30
@@ -317,8 +319,10 @@ void parse_params(int argc, char *argv[])
{ "socks",no_argument,0,0 },// optidx=46
{ "no-resolve",no_argument,0,0 },// optidx=47
{ "skip-nodelay",no_argument,0,0 },// optidx=48
{ "tamper-start",required_argument,0,0 },// optidx=49
{ "tamper-cutoff",required_argument,0,0 },// optidx=50
#if defined(BSD) && !defined(__OpenBSD__) && !defined(__APPLE__)
{ "enable-pf",no_argument,0,0 },// optidx=49
{ "enable-pf",no_argument,0,0 },// optidx=51
#endif
{ "hostlist-auto-retrans-threshold",optional_argument,0,0}, // ignored. for nfqws command line compatibility
{ NULL,0,NULL,0 }
@@ -508,6 +512,18 @@ void parse_params(int argc, char *argv[])
save_default_ttl();
break;
case 27: /* oob */
if (optarg)
{
size_t l = strlen(optarg);
unsigned int bt;
if (l==1) params.oob_byte = (uint8_t)*optarg;
else if (l!=4 || sscanf(optarg,"0x%02X",&bt)!=1)
{
fprintf(stderr, "Invalid argument for oob\n");
exit_clean(1);
}
else params.oob_byte = (uint8_t)bt;
}
params.oob = true;
break;
case 28: /* methodspace */
@@ -653,8 +669,14 @@ void parse_params(int argc, char *argv[])
case 48: /* skip-nodelay */
params.skip_nodelay = true;
break;
case 49: /* tamper-start */
params.tamper_start = atoi(optarg);
break;
case 50: /* tamper-cutoff */
params.tamper_cutoff = atoi(optarg);
break;
#if defined(BSD) && !defined(__OpenBSD__) && !defined(__APPLE__)
case 49: /* enable-pf */
case 51: /* enable-pf */
params.pf_enable = true;
break;
#endif
@@ -798,7 +820,7 @@ static bool set_ulimit(void)
// additional 1/2 for unpaired remote legs sending buffers
// 16 for listen_fd, epoll, hostlist, ...
#ifdef SPLICE_PRESENT
fdmax = (params.tamper ? 4 : 6) * params.maxconn;
fdmax = (params.tamper && !params.tamper_start && !params.tamper_cutoff ? 4 : 6) * params.maxconn;
#else
fdmax = 2 * params.maxconn;
#endif