packet | Incremental binary parsers and serializers for Node.js

 by   bigeasy JavaScript Version: 1.0.0-alpha.4 License: MIT

kandi X-RAY | packet Summary

kandi X-RAY | packet Summary

packet is a JavaScript library. packet has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i packet' or download it from GitHub, npm.

To test our examples below we are going to use the following function.
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            kandi-support Support

              packet has a low active ecosystem.
              It has 182 star(s) with 27 fork(s). There are 11 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 33 open issues and 577 have been closed. On average issues are closed in 330 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of packet is 1.0.0-alpha.4

            kandi-Quality Quality

              packet has no bugs reported.

            kandi-Security Security

              packet has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              packet is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              packet releases are available to install and integrate.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of packet
            Get all kandi verified functions for this library.

            packet Key Features

            No Key Features are available at this moment for packet.

            packet Examples and Code Snippets

            Process incoming packet .
            pythondot img1Lines of Code : 70dot img1License : Permissive (MIT License)
            copy iconCopy
            def process_packet(packet):
                """
                This function is executed whenever a packet is sniffed
                """
                # convert the netfilterqueue packet into Scapy packet
                spacket = IP(packet.get_payload())
                if spacket.haslayer(Raw) and spacket.haslayer(  
            Modify a packet .
            pythondot img2Lines of Code : 28dot img2License : Permissive (MIT License)
            copy iconCopy
            def modify_packet(packet):
                """
                Modifies the DNS Resource Record packet ( the answer part)
                to map our globally defined dns_hosts dictionary.
                For instance, whenver we see a google.com answer, this function replaces 
                the real IP addr  
            Modify a packet .
            pythondot img3Lines of Code : 28dot img3License : Permissive (MIT License)
            copy iconCopy
            def modify_packet(packet):
                """
                Modifies the DNS Resource Record `packet` ( the answer part)
                to map our globally defined `dns_hosts` dictionary.
                For instance, whenver we see a google.com answer, this function replaces 
                the real IP   

            Community Discussions

            QUESTION

            I want to apply H.264 RTP video streaming over P4 SDN on Mininet
            Asked 2021-Jun-15 at 17:48

            I have to do an exercise were I got h.264 video sender host, h.264 video receiver (with background traffic receiver) host, and a background traffic generator host. All of these three are on different ip subnet connected to P4 controller.

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:48

            Yes I can see what you mean, I have done this integration before you only forget the priority statement otherwise should run well, please add this to your code;

            after

            apply { ipv4_lpm.apply();

            ADD:

            Source https://stackoverflow.com/questions/67991134

            QUESTION

            Send data using over bluetooth using different protocols
            Asked 2021-Jun-14 at 18:48

            I have an app that communicates with a bluetooth device, and I'm trying to replace that app with some code.

            I tried using C# InTheHand nuget, Microsoft's Bluetooth LE Explorer, python's sockets and others to send data and see what happens.

            But there's something I still don't understand - in each way using different libraries I saw in wireshark a different protocol: ATT, RFCOMM, L2CAP...

            When I sniffed my bluetooth traffic from my phone using the app mentioned before, I saw mostly HCI_CMD protocol traffic.

            How can I choose the protocol I want to send? Is there a simple package for that? something to read?

            Do I need to build the packet myself? including headers and such?

            Thank you!

            Update: Using Microsoft's Bluetooth LE Explorer I was able to send a packet that lit up my lamp, starting with 02010e10000c00040012(data)
            Using bleak I was able to send a packet starting with 02010e10000c00040052(data)
            the difference makes the lamp not ligh up and I'm not sure if I can change it via bleak as it's not part of the data I send

            ...

            ANSWER

            Answered 2021-Jun-14 at 18:48

            I think what you are showing is that bleak does a write without response while MS BLE Explorer does a write_with_response.

            Looking at the Bleak documentation for write_gatt_char that seems to be consistent as response is False by default

            write_gatt_char Parameters:

            • char_specifier (BleakGATTCharacteristic, int, str or UUID). The characteristic to write to, specified by either integer handle, UUID or directly by the BleakGATTCharacteristic object representing it.

            • data (bytes or bytearray) – The data to send.

            • response (bool) – If write-with-response operation should be done. Defaults to False.

            I would expect the following to have the desired effect:

            Source https://stackoverflow.com/questions/67961476

            QUESTION

            Try catch code block not executing in Unity
            Asked 2021-Jun-14 at 16:36

            I just have an try-catch sentence in a multiplayer project in Unity. It basically tries to connect to the server in the try, and the catch is for getting the exception in case it can't connect. My problem is that im trying to pop a message error via the UI when the exception throws, but the code I used in the catch block is not working. In the code below im trying to show the UI with the LogError. Thanks in advance.

            ...

            ANSWER

            Answered 2021-Jun-07 at 20:38

            Pretty sure the issue is that this call comes in async so on a different Thread/Task.

            Most of Unity API can only be used on the Unity main thread. (Only exception are basically all pure mathematical structs that do not directly influence or rely on the scene.)

            Most of the time this is solved via a so called "Main Thread Dispatcher". It looks somewhat like e.g.

            Source https://stackoverflow.com/questions/67875732

            QUESTION

            Usage of static inline to functions which calls other larger functions in C
            Asked 2021-Jun-14 at 09:40

            Say I have a function,

            ...

            ANSWER

            Answered 2021-Jun-14 at 09:40

            It does not matter. The function total will not be probably inlined (normal function call will be emitted). Function res probably will be inlined.

            Why probably. Because the inline keyword is only a suggestion. Functions without inline may be inlined as well. The compiler may inline the total function as well if decides that on a certain level of optimization it will result in the best code generation.

            Many compilers have special extensions which give you control over inlining. for example:

            gcc has __attribute__((noinline)) and __attribute__((always_inline)).

            iar #pragma inline=never and pragma inline=force

            Source https://stackoverflow.com/questions/67967657

            QUESTION

            How to run send and receive traffic over 2 instances of dpdk-testpmd running on the same host?
            Asked 2021-Jun-13 at 05:04

            Note: I'm new to network and dpdk, so there might be some misunderstanding in fundamental concepts...

            I want to run 2 instances of dpdk-testpmd on the same host to send and receive traffic over separate NIC.

            Configuration:

            NIC:

            • PMD: MLX5
            • version: 5.0-1.0.0.0
            • firmware-version: 16.26.1040 (MT_0000000011)
            • NUMA-Socket: same
            • PCIe: 0000:3b:00.0, 0000:3b:00.1

            Update

            • DPDK Version: 20.11.1
            • Hugepage Total: 32768
            • Hugepage Free: 32768

            TESTPMD Logs:

            ...

            ANSWER

            Answered 2021-Jun-13 at 05:04

            Note: I highly recommend reading about dpdk testpmd as it covered all your questions in detail. As per the StackOverflow guideline multiple sub-questions make answering difficult. Please use well-formatted and formed question for better reach and answers.

            @Alexcured since you have mentioned you know how to run 2 separate instances of dpdk-testpmd. I will only recommend heavily reading up on dpdk-testpmd URL which has answers to most of your questions too.

            The assumption is made, both the PCIe NIC are working properly and interconnect between 2 are tested with either arping or ping (Kernel Driver). After binding both PCIe devices to DPDK supported drivers, one should use options for DPDK 20.11.1 such as

            • use file-prefix option as unique names
            • set socket-memory to fetch memory from the desired NUMA-SOCKET
            • set socket-limit to prevent ballooning of huge page mmap
            • use w|b option to whitelist|blacklist PCIe devices (0000:3b:00.0 and 0000:3b:00.1)
            • Since it is separate physical devices ensure there physical cable connection between 2 PCIe ports.

            [Q.1] How to set the MAC address of instance 2's port in instance 1?

            Source https://stackoverflow.com/questions/67950798

            QUESTION

            Discord.js on raw event breakage
            Asked 2021-Jun-11 at 13:51

            Desired outcome: Assign role to a user who reacts to message in channel. On bot restart the message if not in cache, therefore user is not assigned role.

            Issue: Code stops responding after guildID = client.guilds.get(packet.d.guild_id); client has been defined at the start of the script.

            Expected output: Returns guildID and adds the role to the user who reacted.

            Followed this guide

            ...

            ANSWER

            Answered 2021-Jun-11 at 03:21

            Try to using these alternative way to use

            And guildID = client.guilds.get(packet.d.guild_id); this wrong way to get guild since discord.js v12 updated it will be guildID = client.guilds.cache.get(packet.d.guild_id);

            Source https://stackoverflow.com/questions/67930644

            QUESTION

            How to convert STIX objects to Pydantic models?
            Asked 2021-Jun-11 at 08:46

            I'm using FastAPI and I need to represent different STIX 2 objects (from MITRE ATT&CK) with a corresponding/equivalent Pydantic model in order to return them as a response JSON.

            Let's consider the AttackPattern object.

            ...

            ANSWER

            Answered 2021-Jun-11 at 08:46

            A possible and promising approach is to generate the Pydantic model starting from the corresponding JSON Schema of the STIX object.

            Luckily enough the JSON schemas for all the STIX 2 objects have been defined by the OASIS Open organization on the GitHub repository CTI-STIX2-JSON-Schemas.

            In particular, the JSON Schema for the Attack-Pattern is available here.

            Source https://stackoverflow.com/questions/67919795

            QUESTION

            (2027, 'Malformed packet')
            Asked 2021-Jun-10 at 21:54

            I am using Django with RDS along with Aptible deployement. I started receiving lots (2027, 'Malformed packet') for a while but when I run the same query using Django "shell" OR "dbshell" then the query works fine.

            I am not able to find any lead around that, found some articles/answers but now one could help.

            ...

            ANSWER

            Answered 2021-Jun-10 at 21:54

            Try by disabling query-caching on MySQL if it works. There is a bug reported in MySQL with MySQL-client and MySQL-server versions reported here. Usually, Malformed Packet error occurs when the MySQL client can't understand the packets sent by the MySQL server.

            In our case, we were hitting the same MySQL Server (DB) from two different client machines with different versions of the MySQL client. So, with query-caching enabled, whenever we were running the same query with both of the client machines, we were getting this error.

            Both of these solutions worked for us:-

            1. Disabling the query-caching.
            2. By installing the same MySQL-client version on both of the client machines (now it worked with query-caching enabled as well).

            Source https://stackoverflow.com/questions/67569997

            QUESTION

            iphdr struct src and dest unexpected
            Asked 2021-Jun-10 at 16:29

            I was trying to understand the iphdr struct and I don't understand what src and dest represent. For instance I have a packet sniffer that takes the packet and passes it into an iphdr struct. Running netcat with nc 127.0.0.1 7999 and nc -l 127.0.0.1 7999 I get the result 16777343 for the src and dest. Am I forgetting a conversion or something?

            ...

            ANSWER

            Answered 2021-Jun-10 at 16:29

            1 * 256 * 256 * 256 + 127 is 16777343.
            I think that demonstrates the needed conversion nicely.
            It is close to the hexadecimal representation, just that each bytes value is then shown in decimal.

            Source https://stackoverflow.com/questions/67925045

            QUESTION

            snmpget returns successfully, yet snmpset claims the same OID does not exist
            Asked 2021-Jun-10 at 13:12

            I'm working with a CyberPower PDU: https://www.cyberpowersystems.com/product/pdu/switched-ats/pdu15swhviec12atnet/

            According to snmpwalk -v1 -m CyberPower_MIB_v2.9.MIB -c public 10.42.0.2 iso.3.6.1.4.1.3808, the management card model is RMCARD205 and the full model name is PDU15SWHVIEC12ATNET.

            I would like to programmatically control the power to the ports, doing this via SNMP seems the most robust option. I can query the status of port 3 (say) with,

            ...

            ANSWER

            Answered 2021-Jun-10 at 13:12

            I found the answer to my question and will post some details here, in case others are as confused as I was!

            The first tip is to use the device manufacturers MIB files. CyberPower published a single MIB file (which is basically a textual description of all the properties in the hardware devices) that allows the net-snmp tools to print descriptive names for the otherwise opaque OIDs. For example, to see what I was attempting to set above, after downloading the MIB file into the current working directory,

            Source https://stackoverflow.com/questions/67902045

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install packet

            You can install using 'npm i packet' or download it from GitHub, npm.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            Install
          • npm

            npm i packet

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            https://github.com/bigeasy/packet.git

          • CLI

            gh repo clone bigeasy/packet

          • sshUrl

            git@github.com:bigeasy/packet.git

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