libpcap

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pcap_dispatch - callback processing questions

I am writing fairly simply pcap \"live\" capture engine, however the packet processing callback implementation for pcap_dispatch should take relatively long time for processing.[详细]

2023-04-13 07:01 分类：问答
Decode PCM audio data with g722 codec

I\'m developing a call recorder for VoIP audio, the audio is encoded by using a g722 codec in a CISCO environment.[详细]

2023-04-12 13:55 分类：问答
Pcap file decoding in Haskell

I am trying to decode a pcap file and its working fine except couple of things. import Network.Pcap import System.IO[详细]

2023-04-12 11:21 分类：问答
Could someone explain these code snippets? [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a[详细]

2023-04-08 04:18 分类：问答
Does libpcap watch sent packets?

Does pcap_next display pack开发者_开发问答ets that were sent? For example: If I ping google.com while libpcap is listening for packets, then run pcap_next twice, will both of the returned values be a[详细]

2023-04-07 21:34 分类：问答
FreeBSD: Questions about NIC ring buffers, mbufs, and bpf buffers

I\'ve been going through many technical documents on packet capture/processing and host stacks trying to understand it all, there\'s a few areas where I\'m troubled, hopefully someone can help.[详细]

2023-04-06 20:20 分类：问答
ctypes and passing a by reference to a function

I\'m trying to use libpcap in python3 using ctypes. given the following function in C p开发者_运维知识库cap_lookupnet(dev, &net, &mask, errbuf)[详细]

2023-04-06 19:31 分类：问答
struct pcap_pkthdr len always == zero

Without copying all of the source in here, I am hitting a pcap_callback function from pcap_dispatch. The caplen seems to show the correct length (being that it is always something) but the len always[详细]

2023-04-06 13:09 分类：问答
capture packets then drop packet IPS system

Is there any possible way in windows to \"drop\" packets like a true IPS(intrusion prevention system) similar to iptables in unix.[详细]

2023-04-04 11:26 分类：问答
Why libpcap captures incomplete packets?

I\'m running \"tcpdump port 1025 -w out.pcap -s 4000\" and all packets sent from loc开发者_Go百科alhost I see \"XXX bytes on wire, 54 bytes captured\" (only ethernet and tcp headers are captured, data[详细]

2023-04-03 11:29 分类：问答