[Unstrung-hackers] [RFC net-next] ipv6: ext_header: add function to handle RPL extension header option 0x63

JANARDHANACHARI KELLA eni.chari at gmail.com
Fri May 5 02:59:40 EDT 2017


I was inserted this patch manually. It was working. on 4.9 kernel.

check this bellow link for your ref.

https://github.com/mwasilak/bluetooth-next/commit/f29c632ef6a6a1777815c97fd2f326faccc704f7


On Thu, May 4, 2017 at 9:30 PM, Jiri Pirko <jiri at resnulli.us> wrote:

> Thu, May 04, 2017 at 05:17:18PM CEST, bardoutsos at ceid.upatras.gr wrote:
> >Signed-off-by: Andreas Bardoutsos <bardoutsos at ceid.upatras.gr>
> >---
> >Hi all!
> >
> >I have added a dump function(always return true) to recognise RPL
> extension
> >header(RFC6553)
> >Otherwise packet was dropped by kernel resulting in failing communication
> in
> >RPL DAG's between
> >linux running border routers and devices in the graph.For example
> >communication
> >with contiki OS running devices was previously impossible.
> >
> > include/uapi/linux/in6.h |  1 +
> > net/ipv6/exthdrs.c       | 13 +++++++++++++
> > 2 files changed, 14 insertions(+)
> >
> >diff --git a/include/uapi/linux/in6.h b/include/uapi/linux/in6.h
> >index 46444f8fbee4..5cc12d309dfe 100644
> >--- a/include/uapi/linux/in6.h
> >+++ b/include/uapi/linux/in6.h
> >@@ -146,6 +146,7 @@ struct in6_flowlabel_req {
> > #define IPV6_TLV_CALIPSO      7       /* RFC 5570 */
> > #define IPV6_TLV_JUMBO                194
> > #define IPV6_TLV_HAO          201     /* home address option */
> >+#define IPV6_TLV_RPL  99      /* RFC 6553 */
> >
> > /*
> >  *    IPV6 socket options
> >diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
> >index b636f1da9aec..82ed60d3180e 100644
> >--- a/net/ipv6/exthdrs.c
> >+++ b/net/ipv6/exthdrs.c
> >@@ -785,6 +785,15 @@ static bool ipv6_hop_calipso(struct sk_buff *skb, int
> >optoff)
> >       return false;
> > }
> >
> >+/* RPL RFC 6553 */
> >+
> >+static bool ipv6_hop_rpl(struct sk_buff *skb, int optoff)
> >+{
> >+      /*Dump function which always return true
> >+      *when rpl option is detected*/
>
> This is definitelly wrong formatting of comment. Did you run checkpatch?
>
>
> >+      return true;
> >+}
> >+
> > static const struct tlvtype_proc tlvprochopopt_lst[] = {
> >       {
> >               .type   = IPV6_TLV_ROUTERALERT,
> >@@ -798,6 +807,10 @@ static const struct tlvtype_proc tlvprochopopt_lst[]
> = {
> >               .type   = IPV6_TLV_CALIPSO,
> >               .func   = ipv6_hop_calipso,
> >       },
> >+      {
> >+              .type   = IPV6_TLV_RPL,
> >+              .func   = ipv6_hop_rpl,
> >+      },
> >       { -1, }
> > };
> >
> --
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-- 
Sincerely Your's

Janardhanachari Kella
Contact:+91-9908469599
E-mail: eni.chari at gmail.com
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