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Questions tagged [syn]

Standalone Synthetic Event Library

Syn is used to simulate user actions such as typing, clicking, dragging the mouse. It creates synthetic events and performs default event behavior

Source

39 questions
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How to use syn v2 to parse an attritube like this: `#[attr("a", "b", "c")]`?

In syn v1, there is NestedMeta which is very convenient for parsing nested meta. But since syn v2, it's somehow been removed. For example, trait Hello { fn hello(); } #[derive(Hello)] #[hello("world1", "world2")] struct A; fn main() { …
user3032481
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SSL protocol is able to provide protection against SYN Flooding attack?

I was wondering if SSL protocol is able to provide any way to protect the users from a SYN Flooding (Ddos) attack.
Vin Iov
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Simulate shift + 1 keyboard event and retrieve it in a event handler

I am making a Spec for my framework that needs to test a event with shift key. So I would like to insert pragmatically a ! as if I pressed shift + 1. I have been using the Syn framework but cannot make it simulate a SHIFT + 1. According to the docs…
Sergio
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I want to learn about making SYN flooding packet

I have seen the SYN flooding packet source code. But in there, there are nothing about making ethernet packet. Why source code doesn't manipulate the ethernet header. Why just TCP (It should be manipulated), and IP (It should be also) are…
A.Cho
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syn::ItemStruct not found on root

I am trying to use syn::ItemStruct, but the compiler it's telling me: no ItemStruct in the root. I am using syn = "1.0.86", following this docs: https://docs.rs/syn/1.0.86/syn/struct.ItemStruct.html Does anyone knows how to workaround this…
Alex Vergara
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using syn to get the attribute on an enum field of a struct for proc_macro_derive

I am writing a macro for a struct and implementing a method based on the field type. e.g. u8, Array or str. let us say I have this enum represented as u32. #[repr(u32)] #[derive(Debug, Clone, Copy)] pub enum ServerGreetingMode { Unavailable = 0, …
Yousuf Jawwad
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Creating multiple UnetSockets in UnetStack to exhaust the server

I am trying to implement an attack similar to a normal SYN flood attack in my network created on UnetStack. As UnetSocket() requires parameters like api and localhost to create a socket, providing fake or random api number results in error. So we…
Yash Madwanna
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Handle TCP SYN manually python/scapy

I'm trying to manually Send TCP Syn packets to a custom IP/port and handle them on server side. The Port has to be calculated by the client and server side based on some challenge response protocol. So the port demanded by the client in the TCP…
chedli chihi
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No SYN/ACK from Windows 10 server

I would like to connect a Raspberry Pi 4B (RPI) to a PC via Ethernet using TCPIP. Both devices should have fixed IPv4 address. PC is the server, Raspberry is the client. Server program is running under Windows 7 (on a Dell laptop) or Windows 10…
andras
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Raw socket use epoll without receiving ack packet

I need to use tcp half-open scan to check the port status of a large number of servers. I sendto() a packet with syn=1 to destip's destport,and should recvfrom() a packet ,if syn=1 and ack=1, port is open, else if rst=1, port is close. I use epoll ,…
frank
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Does a TCP sender re-transmit the exact same SYN as the previous SYN after a timer expires?

In case that a sender sent SYN at the first time, but the sender did not receive SYN/ACK in a timeout duration. (Q1) When the sender retransmits SYN again, is the re-transmitted SYN same as the previous SYN? (Q2) Are their sequence numbers same?
Minho Park
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TCP SYN sent with Scapy never received by server nor noticed by Wireshark on the loopback interface

I have a problem with a very basic usage of Scapy on Windows 7 (Python 3.6, Scapy 2.4.0). I'm also running Npcap 0.99r7 and Wireshark 2.6.2 on this sytem. The system does only have one wireless network interface plus the Npcap loopback interface. I…
StashOfCode
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The sever send SYN/ACK after receive SYN from client immediately

I found the request from client timeout sometimes. And I use tcpdump on the server side to catch some special tcp packet as follows. It seems no packet was lost. Why the server doesn't reply to client after receiving the first SYN? enter image…
Allen
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Error inflating class with my own class

I want to load recyclerView in UITask.java. I try to get the recyclerView's ID through View UITask.java protected void onProgressUpdate(List... values) { View view =…
yami
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Python tcp - send only the first SYN

I want to open socket session with some web server in python and I want only the first SYN to be sent import socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect("www.websever.com", 80) but with my code I can see all 3 way…
gaidediz
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