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nfqws,tpws: debug tls version

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bol-van
2025-04-13 15:27:50 +03:00
parent b12b1a5a17
commit d19f6c19a4
7 changed files with 93 additions and 0 deletions
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29
tpws/tamper.c
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@@ -15,6 +15,34 @@ void packet_debug(const uint8_t *data, size_t sz)
hexdump_limited_dlog(data, sz, PKTDATA_MAXDUMP); VPRINT("\n");
}
void TLSDebug(const uint8_t *tls,size_t sz)
{
if (sz<11) return;
uint16_t v_rec=pntoh16(tls+1), v_handshake=pntoh16(tls+9), v;
VPRINT("TLS record layer version : %s\nTLS handshake version : %s\n",TLSVersionStr(v_rec),TLSVersionStr(v_handshake));
const uint8_t *ext_supvers;
size_t len_supvers,len_supvers2;
if (TLSFindExt(tls,sz,43,&ext_supvers,&len_supvers,false))
{
if (len_supvers)
{
len_supvers2 = ext_supvers[0];
if (len_supvers2<len_supvers)
{
for(ext_supvers++,len_supvers2&=~1 ; len_supvers2 ; len_supvers2-=2,ext_supvers+=2)
{
v = pntoh16(ext_supvers);
VPRINT("TLS supported versions ext : %s\n",TLSVersionStr(v));
}
}
}
}
else
VPRINT("TLS supported versions ext : not present\n");
}
static bool dp_match(struct desync_profile *dp, const struct sockaddr *dest, const char *hostname, t_l7proto l7proto)
{
bool bHostlistsEmpty;
@@ -130,6 +158,7 @@ void tamper_out(t_ctrack *ctrack, const struct sockaddr *dest, uint8_t *segment,
{
VPRINT("Data block contains TLS ClientHello\n");
l7proto=TLS;
if (params.debug) TLSDebug(segment,*size);
bHaveHost=TLSHelloExtractHost((uint8_t*)segment,*size,Host,sizeof(Host),false);
}
else