tcpdump mailing list archives
Re: [clearview-discuss] libdlpi with libpcap
From: sagun shakya <Sagun.Shakya () Sun COM>
Date: Fri, 16 Nov 2007 17:58:16 -0500
Hi,
I would like to hear from you for suggestions on how libpcap can beupdated to libdlpi. I have a couple of possible approaches to make this addition but they may not necessarily be the best approach:1) Introduce a new pcap-libdlpi-solaris.c file which will handle all the versions of Solaris with libdlpi. The existing pcap-dlpi.c will continue working for pre-libdlpi versions of Solaris. 2) Continue with the use of ifdef #HAVE_SOLARIS approach in the existing pcap-dlpi.c file to call libdlpi functions for releases that support libdlpi.3) Instead of using libdlpi, add support to open different directories, i.e /dev/net, /dev/ipnet, and add other Solaris-specific ioctls to the existing pcap-dlpi.c file under #ifdef protection.
I have developed a prototype with the option 1 proposed. I would like to hear from you if you have any comments or feedback. The changes made to the libpcap library can be seen at the link below: http://cr.opensolaris.org/~sagun/libpcap/ I will be adding a readme file with these changes when providing the patch later. I've compiled and ran this version of libpcap with tcpdump and wireshark on a system with and without clearview-UV. As mentioned before once the UV component of Project Clearview (http://opensolaris.org/os/project/clearview/uv/) integrates into Solaris, libpcap will allow you to capture packets at non IP-layers as well. The present libpcap library enumerates available network devices on Solaris with find_alldevs() using SIOCCLGIFCONF flag. Therefore, only network devices which have been plumbed by IP are listed. In this version of libpcap, find_alldevs() calls pcap_platform_finddevs() to find the rest unplumbed network devices. Since pcap_platform_finddevs() is implemented using of dlpi_walk(), which will be provided with libdlpi when UV integrates, the latest version of SXDE/SXCE will not be able to support this feature. Thank you for reviewing, Sagun - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- libdlpi with libpcap sagun shakya (Oct 05)
- Re: libdlpi with libpcap Guy Harris (Oct 08)
- Re: libdlpi with libpcap sagun shakya (Oct 10)
- Message not available
- Re: [clearview-discuss] libdlpi with libpcap sagun shakya (Nov 16)
- Re: [clearview-discuss] libdlpi with libpcap Guy Harris (Nov 17)
- Re: [clearview-discuss] libdlpi with libpcap sagun shakya (Nov 18)
- Re: [clearview-discuss] libdlpi with libpcap Peter Memishian (Nov 18)
- Re: [clearview-discuss] libdlpi with libpcap sagun shakya (Nov 19)
- Re: [clearview-discuss] libdlpi with libpcap sagun shakya (Nov 29)
- Message not available
- Re: [clearview-discuss] libdlpi with libpcap sagun shakya (Nov 30)
- Re: libdlpi with libpcap Guy Harris (Oct 08)