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Date: Sat, 09 Aug 2014 21:32:18 +0200 From: Daniel Borkmann <dborkman@...hat.com> To: Marcel Holtmann <marcel@...tmann.org> CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: Use CAP_NET_ADMIN and alias netdev-nlmon instead On 08/08/2014 11:22 PM, Marcel Holtmann wrote: > Hi, > > so I am running this command sequence: > > ip link add name nlmon type nlmon > ip link set dev nlmon up > > With that I get this message in dmesg: > > Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). > Use CAP_NET_ADMIN and alias netdev-nlmon instead. > > The kernel section producing this is dev_load() from net/core/dev_ioctl.c: > > no_module = !dev; > if (no_module && capable(CAP_NET_ADMIN)) > no_module = request_module("netdev-%s", name); > if (no_module && capable(CAP_SYS_MODULE)) { > if (!request_module("%s", name)) > pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", > name); > } > > Since I am explicitly giving the name from userspace, I have no idea why the > kernel bugs me in providing netdev-nlmon alias. It makes no sense to me. What > is the reasoning behind this? Could it just be that your process doesn't have CAP_NET_ADMIN set but CAP_SYS_MODULE instead thus triggering this pr_warn()? grep Cap /proc/$$/status ? Hm, I don't think this is nlmon related, above works fine on my side. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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