On Wed, Aug 11, 2010 at 3:26 PM, Marcin Kucharczyk <marcin@xxxxxxxxxxxxx> wrote: > > Hi, > > is there any way to get information about VLAN ID using netlink? When I add > VLAN interface using vconfig I get RTM_NEWLINK message but there isn't any > attribute about VLAN ID. Marcin, I hope you found an answer to your question by now, as it's been quite a while, but I thought I'd take a shot at answering it anyway. For future questions of this type, you might consider asking on linux-netdev which has a lot more activity than this list. There is in fact a VLAN ID attribute in the RTM_NEWLINK message, but you have to go digging for it a bit. VLAN devices will have a LINKINFO attribute as part of NEWLINK, which is a nested attribute that will contain INFO_KIND and INFO_DATA attributes. INFO_KIND is a string, which for 802.1q VLANs will be "vlan". INFO_DATA is another nested attribute, who's contents depend on INFO_KIND. For VLAN devices, INFO_DATA will contain a VLAN_ID attribute. Here's a link to some code I wrote for the Open-FCoE project that parses RTM_NEWLINK messages and does some special handling for VLAN devices. http://www.open-fcoe.org/openfc/gitweb/?p=openfc/fcoe-utils.git;a=blob;f=fipvlan.c;h=f802cd877fd0adca65af8d9f8f68d207b1094ebf;hb=HEAD#l305 - Chris -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
