tcpdump mailing list archives
capturing packets
From: Madhusudan KR <madhusudan.kr () firstmedia in>
Date: Tue, 27 Apr 2010 19:59:41 +0530
Hi, I have a system which has two ethernet interfaces, namely eth0 and eth1. I need to capture the packets from both the interfaces. I am planning to spawn two threads, one each for eth0 and eth1. In these threads I shall be using the following two pcap calls. pcap_open_live pcap_next_ex I shall run "pcap_next_ex" in a while loop, so that it keeps on capturing the packets. I have the following questions. 1. Am I in the right direction? If not, please guide me the right approach for this problem 2. I read from the man page for pcap, that "pcap_next_ex" is a blocking call. Does this mean that, if one thread is busy with "pcap_next_ex", then the other thread have to wait for it??? In this case, will I not be missing the packets... Regards, Madhusudan - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- capturing packets Madhusudan KR (Apr 27)
- Re: capturing packets Gianluca Varenni (Apr 27)
- Re: capturing packets Edgar, Thomas (Apr 27)
- Re: capturing packets Edgar, Thomas (Apr 27)
- Re: capturing packets Gianluca Varenni (Apr 27)