tcpdump mailing list archives

Re: [clearview-discuss] libdlpi with libpcap


From: sagun shakya <Sagun.Shakya () Sun COM>
Date: Thu, 31 Jan 2008 18:26:26 -0500

I've addressed all the comments from below and updated the webrev.

http://cr.opensolaris.org/~sagun/libpcap/

While testing the changes I found out that my changes didn't work on a Solaris system that had libdlpi.h version
that existed before the public libdlpi.h was integrated. Some changes had to be made to configure.in and I added a 
couple of new macros to aclocal.m4. Could you please review those changes as well.

thanks,

Sagun

sagun shakya wrote:
Thank you for reviewing the changes Guy!

FYI, I've also filed bug # 1882884 " Add libpcap support for new Solaris features".

Guy Harris wrote:
I mostly fixed the comment changes, thinking they were trivial and left other Sun cstyle error alone. I can see how it is distracting while reviewing the actual changes. I've undone such changes and posted a new webrev at:

http://cr.opensolaris.org/~sagun/libpcap/
pcap-streams.c isn't purely STREAMS-related, and most of the pcap-XXX.c files have implementations of the libpcap APIs; you might want to call it, for example, "dlpisubs.c", as it's subroutines for both the "raw DLPI" and libdlpi-mediated DLPI implementations.
Accepted. I'll change pcap-streams.c pcap-dlpisubs.c.

pcap_read_pkt() might be better named pcap_read_pkts(), or pcap_process_pkts() - it processes more than one packet.
pcap_process_pkts fits more to the function. I've fixed it to be that.
pcap_set_linktype() doesn't set the link-layer type in the sense that pcap_set_datalink() does - i.e., it doesn't change what the link-layer type of the packets supplied by the device is. pcap_process_mactype() might be a better name.
Accepted.
pcap_conf_bufmod() also flushes the read side of the stream; you might want to do that outside that routine, as that's not related to setting up bufmod. Then pcap_conf_bufmod() wouldn't exist on platforms without bufmod.

Yes, I had split pcap_alloc_databuf() for similar reason. Instead of creating another routine I'll just do this exclusively in pcap-[dlpi,libdlpi].c
You might also want to have pcap_open_live() in pcap-dlpi.c set passive mode if available, so that libpcap-based applications can coexist with link aggregation even in pre-Solaris 11 versions.
I'll add this to pcap_open_live in pcap_dlpi.c

I'll send an updated webrev once I've updated these changes.


--

Sagun Shakya
781.442.7344/ X27344
sagun.shakya () sun com


-
This is the tcpdump-workers list.
Visit https://cod.sandelman.ca/ to unsubscribe.


Current thread: