[dpdk-dev] [PATCH v5 2/3] ip_frag: ensure minimum v6 fragmentation length
Ananyev, Konstantin
konstantin.ananyev at intel.com
Mon Apr 20 17:43:22 CEST 2020
> >> In addition, do a formal parameter check.
> >>
> >> Acked-by: Lukasz Wojciechowski <l.wojciechow at partner.samsung.com>
> >> Signed-off-by: Aaron Conole <aconole at redhat.com>
> >> ---
> >> lib/librte_ip_frag/rte_ipv6_fragmentation.c | 9 +++++++++
> >> 1 file changed, 9 insertions(+)
> >>
> >> diff --git a/lib/librte_ip_frag/rte_ipv6_fragmentation.c b/lib/librte_ip_frag/rte_ipv6_fragmentation.c
> >> index 43449970e5..ee984aed82 100644
> >> --- a/lib/librte_ip_frag/rte_ipv6_fragmentation.c
> >> +++ b/lib/librte_ip_frag/rte_ipv6_fragmentation.c
> >> @@ -79,6 +79,15 @@ rte_ipv6_fragment_packet(struct rte_mbuf *pkt_in,
> >> uint16_t fragment_offset, frag_size;
> >> uint64_t frag_bytes_remaining;
> >>
> >> + /*
> >> + * Formal parameter checking.
> >> + */
> >> + if (unlikely(pkt_in == NULL) || unlikely(pkts_out == NULL) ||
> >> + unlikely(nb_pkts_out == 0) ||
> >> + unlikely(pool_direct == NULL) || unlikely(pool_indirect == NULL) ||
> >> + unlikely(mtu_size < 1280))
> >
> > Same as for ipv4 - LGTM in general, but please avoid hard-coded constants for MTU values.
> > Here I couldn't find an existing macro ro min ipv6 mtu, so probably worth to add a new one
> > in librte_net/.
>
> I plan to add it in rte_ip.h as RTE_IPV6_MIN_MTU since it seems to fit
> there.
Sounds ok to me.
Thanks
Konstantin
I don't think it looks right to add RTE_ETHER_IPV6_MIN_MTU in
> the rte_ether.h file (but if you think it looks better I will change to
> that).
>
> > With that nit fixed:
> > Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
>
> Thanks!
>
> >> + return -EINVAL;
> >> +
> >> /*
> >> * Ensure the IP payload length of all fragments (except the
> >> * the last fragment) are a multiple of 8 bytes per RFC2460.
> >> --
> >> 2.25.1
More information about the dev
mailing list