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Update faking strategies

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Use random ip4 id for frags, use sequential ip4 id for fakes
This commit is contained in:
Vadim Vetrov
2024-10-12 12:19:33 +03:00
parent 30bc3a8d3f
commit e9b033ccca
14 changed files with 397 additions and 270 deletions
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14
tls.c
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@@ -273,18 +273,9 @@ int gen_fake_sni(struct fake_type type,
const void *ipxh, uint32_t iph_len,
const struct tcphdr *tcph, uint32_t tcph_len,
uint8_t *buf, uint32_t *buflen) {
uint32_t data_len = type.fake_len;
if (type.type == FAKE_PAYLOAD_RANDOM && data_len == 0) {
#ifdef KERNEL_SPACE
get_random_bytes(&data_len, sizeof(data_len));
data_len = data_len % 1200;
#else
data_len = random() % 1200;
#endif
} else if (type.type == FAKE_PAYLOAD_DEFAULT) {
data_len = config.fake_sni_pkt_sz;
data_len = (uint32_t)randint() % 1200;
}
if (!ipxh || !tcph || !buf || !buflen)
@@ -320,9 +311,6 @@ int gen_fake_sni(struct fake_type type,
uint8_t *bfdptr = buf + iph_len + tcph_len;
switch (type.type) {
case FAKE_PAYLOAD_DEFAULT:
memcpy(bfdptr, config.fake_sni_pkt, data_len);
break;
case FAKE_PAYLOAD_DATA:
memcpy(bfdptr, type.fake_data, data_len);
break;