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Fix ip header id field sequence

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This commit is contained in:
Pavel4e5 2024-10-15 21:31:50 +05:00
parent ee009cf107
commit 1cd96722f7
1 changed files with 10 additions and 0 deletions
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10
src/fakepackets.c
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@ -17,6 +17,7 @@ struct fake_t {
static struct fake_t *fakes[30] = {0}; static struct fake_t *fakes[30] = {0};
int fakes_count = 0; int fakes_count = 0;
int fakes_resend = 1; int fakes_resend = 1;
unsigned int iphdr_id = 0;
static const unsigned char fake_http_request[] = "GET / HTTP/1.1\r\nHost: www.w3.org\r\n" static const unsigned char fake_http_request[] = "GET / HTTP/1.1\r\nHost: www.w3.org\r\n"
"User-Agent: curl/7.65.3\r\nAccept: */*\r\n" "User-Agent: curl/7.65.3\r\nAccept: */*\r\n"
@ -203,6 +204,13 @@ static int send_fake_data(const HANDLE w_filter,
if (set_ttl) if (set_ttl)
ppIpHdr->TTL = set_ttl; ppIpHdr->TTL = set_ttl;
// ppIpHdr->FragOff0 = ((ppIpHdr->FragOff0) & 0xFFBF) | //uncomment if DF flag must be zero
// (((FALSE) & 0x0001) << 6);
ppIpHdr->Id = htons(iphdr_id);
iphdr_id++;
} }
else { else {
ppIpV6Hdr->Length = htons( ppIpV6Hdr->Length = htons(
@ -283,6 +291,7 @@ int send_fake_http_request(const HANDLE w_filter,
const BYTE set_seq const BYTE set_seq
) { ) {
int ret = 0; int ret = 0;
rand_s(&iphdr_id);
for (int i=0; i<fakes_count || i == 0; i++) { for (int i=0; i<fakes_count || i == 0; i++) {
for (int j=0; j<fakes_resend; j++) for (int j=0; j<fakes_resend; j++)
if (send_fake_request(w_filter, addr, pkt, packetLen, if (send_fake_request(w_filter, addr, pkt, packetLen,
@ -306,6 +315,7 @@ int send_fake_https_request(const HANDLE w_filter,
const BYTE set_seq const BYTE set_seq
) { ) {
int ret = 0; int ret = 0;
rand_s(&iphdr_id);
for (int i=0; i<fakes_count || i == 0; i++) { for (int i=0; i<fakes_count || i == 0; i++) {
for (int j=0; j<fakes_resend; j++) for (int j=0; j<fakes_resend; j++)
if (send_fake_request(w_filter, addr, pkt, packetLen, if (send_fake_request(w_filter, addr, pkt, packetLen,