Messages in this thread | | | Date | Fri, 13 Mar 2015 13:15:39 +0100 | From | Pablo Neira Ayuso <> | Subject | Re: [PATCH 4/4] netfilter: Fix format string of nfnetlink_queue proc file |
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On Fri, Mar 13, 2015 at 12:31:16PM +0100, Richard Weinberger wrote: > The printed values are all of type unsigned integer, therefore use > %u instead of %d. Otherwise an user can face negative values. > > Fixes: > $ cat /proc/net/netfilter/nfnetlink_queue > 0 29508 278 2 65531 0 2004213241 -2129885586 1 > 1 -27747 0 2 65531 0 0 0 1 > 2 -27748 0 2 65531 0 0 0 1
I guess you want to access stats on dropped packets.
I prefer if you extend nfnetlink_queue to provide statistics through nfnetlink_queue, so you don't have to manually parse this text-based /proc entry and we can deprecate this interface. That shouldn't have been there in first place.
Thanks.
> Signed-off-by: Richard Weinberger <richard@nod.at> > --- > net/netfilter/nfnetlink_queue_core.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c > index 1b7f7b8..2121ab5 100644 > --- a/net/netfilter/nfnetlink_queue_core.c > +++ b/net/netfilter/nfnetlink_queue_core.c > @@ -1243,7 +1243,7 @@ static int seq_show(struct seq_file *s, void *v) > { > const struct nfqnl_instance *inst = v; > > - seq_printf(s, "%5d %6d %5d %1d %5d %5d %5d %8d %2d\n", > + seq_printf(s, "%5u %6u %5u %1u %5u %5u %5u %8u %2d\n", > inst->queue_num, > inst->peer_portid, inst->queue_total, > inst->copy_mode, inst->copy_range, > -- > 1.8.4.5 >
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