[libvirt] [PATCH 3/3] nwfilter: Increase buffer size for libpcap

From: Stefan Berger <stefanb(a)linux.vnet.ibm.com&gt; Libpcap 1.5 requires a larger buffer than previous pcap versions. Adjust the size of the buffer to 128kb. This patch should address symptoms in BZ 1071181 and BZ 731059 Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com&gt; --- src/nwfilter/nwfilter_dhcpsnoop.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/nwfilter/nwfilter_dhcpsnoop.c b/src/nwfilter/nwfilter_dhcpsnoop.c index 7cb0ac0..ab9bf09 100644 --- a/src/nwfilter/nwfilter_dhcpsnoop.c +++ b/src/nwfilter/nwfilter_dhcpsnoop.c @@ -250,7 +250,11 @@ struct _virNWFilterDHCPDecodeJob { # define DHCP_PKT_BURST 50 /* pkts/sec */ # define DHCP_BURST_INTERVAL_S 10 /* sec */ -# define PCAP_BUFFERSIZE (DHCP_PKT_BURST * PCAP_PBUFSIZE / 2) +/* + * libpcap 1.5 requires a 128kb buffer + * 128 kb is bigger than (DHCP_PKT_BURST * PCAP_PBUFSIZE / 2) + */ +# define PCAP_BUFFERSIZE (128 * 1024) # define MAX_QUEUED_JOBS (DHCP_PKT_BURST + 2 * DHCP_PKT_RATE) -- 1.8.1.4