Re: [PATCH libnetfilter_queue v2 1/1] src: Add nfq_nlmsg_put2() - user specifies header flags

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On Wed, Nov 15, 2023 at 09:53:24PM +1100, Duncan Roe wrote:
> On Wed, Nov 15, 2023 at 11:25:27AM +0100, Pablo Neira Ayuso wrote:
> > On Wed, Nov 15, 2023 at 09:09:50PM +1100, Duncan Roe wrote:
> > > +EXPORT_SYMBOL
> > > +struct nlmsghdr *nfq_nlmsg_put2(char *buf, int type, uint32_t queue_num,
> > > +				uint16_t flags)
> > >  {
> > >  	struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
> > >  	nlh->nlmsg_type = (NFNL_SUBSYS_QUEUE << 8) | type;
> > > -	nlh->nlmsg_flags = NLM_F_REQUEST
> > > +	nlh->nlmsg_flags = flags;
> >
> > Leave this as is.
> >
> > NLM_F_REQUEST means this message goes to the kernel, this flag is a
> > must have.
> 
> How about
> 
> 	nlh->nlmsg_flags = NLM_F_REQUEST | flags;

Yes, that is fine.



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