On 01/30/14 at 02:05pm, Tom Gundersen wrote: > Userspace needs to reliably know the ifindex of the netdevs it creates, > as we cannot rely on the ifname staying unchanged. > > Earlier, a simlpe NLMSG_ERROR would be returned, but this returns the > corresponding RTM_NEWLINK on success instead.
This breaks existing Netlink applications in user space. User space apps are not prepared to receive both a RTM_NEWLINK reply _and_ the ACK unless they have set NLM_F_ECHO in the original request. You can already reliably retrieve the ifindex by listening to RTNLGRP_LINK messages and be notified about the link created including all follow-up renames. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
