netdev - Re: [PATCH bpf-next] bpftool: recognize BPF_PROG_TYPE_CGROUP

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Message-ID: <20180115194952.GA14131@castle.DHCP.thefacebook.com>
Date:   Mon, 15 Jan 2018 19:49:58 +0000
From:   Roman Gushchin <guro@...com>
To:     Quentin Monnet <quentin.monnet@...ronome.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel-team@...com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>
Subject: Re: [PATCH bpf-next] bpftool: recognize BPF_PROG_TYPE_CGROUP_DEVICE
 programs

On Mon, Jan 15, 2018 at 07:32:01PM +0000, Quentin Monnet wrote:
> 2018-01-15 19:16 UTC+0000 ~ Roman Gushchin <guro@...com>
> > Bpftool doesn't recognize BPF_PROG_TYPE_CGROUP_DEVICE programs,
> > so the prog show command prints the numeric type value:
> >
> > $ bpftool prog show
> > 1: type 15  name bpf_prog1  tag ac9f93dbfd6d9b74
> > 	loaded_at Jan 15/07:58  uid 0
> > 	xlated 96B  jited 105B  memlock 4096B
> >
> > This patch defines the corresponding textual representation:
> >
> > $ bpftool prog show
> > 1: cgroup_device  name bpf_prog1  tag ac9f93dbfd6d9b74
> > 	loaded_at Jan 15/07:58  uid 0
> > 	xlated 96B  jited 105B  memlock 4096B
> >
> > Signed-off-by: Roman Gushchin <guro@...com>
> > Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
> > Cc: Quentin Monnet <quentin.monnet@...ronome.com>
> > Cc: Daniel Borkmann <daniel@...earbox.net>
> > Cc: Alexei Starovoitov <ast@...nel.org>
> > ---
> >  tools/bpf/bpftool/prog.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
> > index c6a28be4665c..099e21cf1b5c 100644
> > --- a/tools/bpf/bpftool/prog.c
> > +++ b/tools/bpf/bpftool/prog.c
> > @@ -66,6 +66,7 @@ static const char * const prog_type_name[] = {
> >  	[BPF_PROG_TYPE_LWT_XMIT]	= "lwt_xmit",
> >  	[BPF_PROG_TYPE_SOCK_OPS]	= "sock_ops",
> >  	[BPF_PROG_TYPE_SK_SKB]		= "sk_skb",
> > +	[BPF_PROG_TYPE_CGROUP_DEVICE]	= "cgroup_device",
> >  };
> >  
> >  static void print_boot_time(__u64 nsecs, char *buf, unsigned int size)
> 
> Looks good, thanks Roman!
> Would you mind updating the map names as well? It seems the
> BPF_MAP_TYPE_CPUMAP is missing from the list in map.c.

Hello, Quentin!

Sure, I'll take a look.

Thanks!