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Enhance middle sni split

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Instead of real middle sni we use targetted middle sni for explicit (not
all) sni domain list
This commit is contained in:
Vadim Vetrov
2024-09-28 11:31:46 +03:00
parent 82c49119d3
commit 3ee979f7d1
3 changed files with 8 additions and 4 deletions
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7
mangle.c
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@@ -190,7 +190,7 @@ int process_tcp_packet(const uint8_t *raw_payload, uint32_t raw_payload_len) {
switch (config.fragmentation_strategy) {
case FRAG_STRAT_TCP: {
ipd_offset = vrd.sni_offset;
ipd_offset = vrd.sni_target_offset;
mid_offset = ipd_offset + vrd.sni_len / 2;
uint32_t poses[2];
@@ -221,7 +221,7 @@ int process_tcp_packet(const uint8_t *raw_payload, uint32_t raw_payload_len) {
break;
case FRAG_STRAT_IP:
if (ipxv == IP4VERSION) {
ipd_offset = ((char *)data - (char *)tcph) + vrd.sni_offset;
ipd_offset = ((char *)data - (char *)tcph) + vrd.sni_target_offset;
mid_offset = ipd_offset + vrd.sni_len / 2;
mid_offset += 8 - mid_offset % 8;
@@ -618,7 +618,8 @@ int post_fake_sni(const void *iph, unsigned int iph_len,
fake_seq_type.type = FAKE_PAYLOAD_DEFAULT;
}
for (int i = 0; i < sequence_len; i++) {
// one goes for default fake
for (int i = 1; i < sequence_len; i++) {
NETBUF_ALLOC(fake_sni, MAX_PACKET_SIZE);
if (!NETBUF_CHECK(fake_sni)) {
lgerror("Allocation error", -ENOMEM);