On Sun, Jan 12, 2020 at 11:28:02AM +0100, Pablo Neira Ayuso wrote:
> On Fri, Jan 10, 2020 at 01:53:11PM +0100, Phil Sutter wrote:
> > Hi Pablo,
> >
> > On Thu, Jan 09, 2020 at 06:21:13PM +0100, Pablo Neira Ayuso wrote:
> > [...]
> > > diff --git a/include/nftables/libnftables.h b/include/nftables/libnftables.h
> > > index 765b20dd71ee..887628959ac6 100644
> > > --- a/include/nftables/libnftables.h
> > > +++ b/include/nftables/libnftables.h
> > > @@ -34,10 +34,13 @@ enum nft_debug_level {
> > > * Possible flags to pass to nft_ctx_new()
> > > */
> > > #define NFT_CTX_DEFAULT 0
> > > +#define NFT_CTX_NETNS 1
> >
> > What is this needed for?
>
> The socket is initialized from nft_ctx_init(), and such initialization
> needs to happen after the netns switch.
s/nft_ctx_init()/nft_ctx_new()
> > > struct nft_ctx *nft_ctx_new(uint32_t flags);
> > > void nft_ctx_free(struct nft_ctx *ctx);
> > >
> > > +int nft_ctx_set_netns(struct nft_ctx *ctx, const char *netns);
> >
> > Is there a way to select init ns again?
>
> AFAIK, setns() does not let you go back to init ns once set.
