On Monday 16 July 2007 21:47:40 Patrick McHardy wrote:
>
> I lost interest here, but the reintroduced bugs make me think that
> some old version was simply rediffed without even checking the
> output and the state initialization also seems to need a bit more work.
>

Thanks for reviewing the code, really appreciate it (whoa, would have been a 
lot of problems [re-]introduced)! And yes, you're right - it seemed at the 
time easier to just convert the old code to run in the new kernel as it's 
been working fine for us. Quickly scanned the existing (non-interfamily) beet 
implementation, but I guess not thoroughly enough. Anyway, merged back the 
latest non-interfamily versions and rolling with those now. Should have a 
fixed version ready soon..

Some other comments:

> Joakim Koskela wrote:
> > diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
> > index fa1902d..7a39f4c 100644
> > --- a/net/ipv4/xfrm4_input.c
> > +++ b/net/ipv4/xfrm4_input.c
> > @@ -108,7 +108,8 @@ int xfrm4_rcv_encap(struct sk_buff *skb, __u16
> > encap_type) if (x->mode->input(x, skb))
> >                     goto drop;
> >
> > -           if (x->props.mode == XFRM_MODE_TUNNEL) {
> > +           if (x->props.mode == XFRM_MODE_TUNNEL ||
> > +               x->props.mode == XFRM_MODE_BEET) {
> >                     decaps = 1;
> >                     break;
> >             }
>
> I was under the impression that one of the main points of BEET is that
> it offers tunnel semantics but does only transport mode processing.
> Its necessary for inter-family tunnels, but shouldn't this be avoided
> for normal use?
>

Yes, this is actually quite a nice improvement to the interfamily processing I 
(at least) haven't thought of before. Tested it & works fine (ipv4-ipv4).

>
> > diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
> > index 44ef208..8db7910 100644
> > --- a/net/ipv4/xfrm4_output.c
> > +++ b/net/ipv4/xfrm4_output.c
> > @@ -53,7 +53,8 @@ static int xfrm4_output_one(struct sk_buff *skb)
> >                     goto error_nolock;
> >     }
> >
> > -   if (x->props.mode == XFRM_MODE_TUNNEL) {
> > +   if (x->props.mode == XFRM_MODE_TUNNEL ||
> > +       x->props.mode == XFRM_MODE_BEET) {
> >             err = xfrm4_tunnel_check_size(skb);
>
> Its not a real tunnel and all packets are generated locally, why
> does it need to send ICMPs?

Guess not. I'll have to still trace through, but can probably be removed.

> > +           if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
> > +                   encap_family = xfrm[i]->props.family;
> > +                   if (encap_family == AF_INET) {
> > +                           remote.in = (struct in_addr *)
> > +                                   &xfrm[i]->id.daddr.a4;
> > +                           local.in  = (struct in_addr *)
> > +                                   &xfrm[i]->props.saddr.a4;
> > +                   } else if (encap_family == AF_INET6) {
> > +                           remote.in6 = (struct in6_addr *)
> > +                                   xfrm[i]->id.daddr.a6;
> > +                           local.in6 = (struct in6_addr *)
> > +                                   xfrm[i]->props.saddr.a6;
> > +                   }
>
> No ifdefs here?

Thanks for noticing!

> >  static int ipip_init_state(struct xfrm_state *x)
> >  {
> > -   if (x->props.mode != XFRM_MODE_TUNNEL)
> > +   if (x->props.mode != XFRM_MODE_TUNNEL ||
> > +       x->props.mode != XFRM_MODE_BEET)
> >             return -EINVAL;
>
> Looks like a bug fix that should be seperated.
>

Probably. This has been there for a while, don't know what's the story behind 
it, have to check..

br, j
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to