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Date: Tue, 02 Mar 2010 20:00:48 -0500
From: Pavel Roskin <proski@....org>
To: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
tcpdump-workers@...ts.tcpdump.org
Cc: Jiri Pirko <jpirko@...hat.com>
Subject: Current wireless-testing breaks libpcap: mr_alen should be set
Hello!
The current wireless-testing appears to have some non-wireless bits from
the upcoming Linux 2.6.34. As a result, libpcap and all capture
programs that use it are broken.
This patch to libpcap helps:
--- a/pcap-linux.c
+++ b/pcap-linux.c
@@ -1563,6 +1563,7 @@ live_open_new(pcap_t *handle, const char
memset(&mr, 0, sizeof(mr));
mr.mr_ifindex = handle->md.ifindex;
mr.mr_type = PACKET_MR_PROMISC;
+ mr.mr_alen = 6;
if (setsockopt(sock_fd, SOL_PACKET,
PACKET_ADD_MEMBERSHIP, &mr, sizeof(mr)) == -1)
{
libpcap git doesn't have the fix yet.
The breakage must be coming from the commit 914c8ad2 by Jiri Pirko to
net/packet/af_packet.c
I think it's very unhelpful to introduce patches that break significant
userspace functionality without giving the affected programs an advance
warning.
Also, pulling bleeding edge stuff into wireless-testing before rc1
appears to be either a mistake or a bad decision.
Sorry for cross-post, but it's an urgent issue. Repliers are encouraged
to trim the recipient list as necessary.
--
Regards,
Pavel Roskin
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