[U-Boot] [RFC PATCH 1/8] Initial net6.h

[Joe Hershberger]

Hi Chris,

On Mon, Oct 12, 2015 at 2:43 AM, Chris Packham <judge.packham at gmail.com> wrote:
> The initial net6.h just has the definition of an IPv6 address and IPv6
> header. Subsequent changes will build on this.
>
> Signed-off-by: Chris Packham <judge.packham at gmail.com>
> ---
> It may make sense to include this in net.h but for now I haven't done
> so.

I think it's good to keep it separate to start.

>  include/net6.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 include/net6.h
>
> diff --git a/include/net6.h b/include/net6.h
> new file mode 100644
> index 0000000..b622951
> --- /dev/null
> +++ b/include/net6.h
> @@ -0,0 +1,48 @@
> +/**
> + * Simple IPv6 network layer implementation.
> + *
> + * Based and/or adapted from the IPv4 network layer in net.[hc]
> + *
> + * (C) Copyright 2013 Allied Telesis Labs NZ
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +#ifndef __NET6_H__
> +#define __NET6_H__
> +
> +struct in6_addr {
> +       union {
> +               __u8    u6_addr8[16];
> +               __be16  u6_addr16[8];
> +               __be32  u6_addr32[4];
> +       } in6_u;
> +
> +#define s6_addr                in6_u.u6_addr8
> +#define s6_addr16      in6_u.u6_addr16
> +#define s6_addr32      in6_u.u6_addr32
> +};
> +
> +/**
> + * struct ipv6hdr - Internet Protocol V6 (IPv6) header.
> + *
> + * IPv6 packet header as defined in RFC 2460.
> + */
> +struct ip6_hdr {
> +#if defined(__LITTLE_ENDIAN_BITFIELD)
> +       __u8    priority:4,
> +               version:4;
> +#elif defined(__BIG_ENDIAN_BITFIELD)
> +       __u8    version:4,
> +               priority:4;
> +#else
> +#error  "Please fix <asm/byteorder.h>"
> +#endif
> +       __u8            flow_lbl[3];
> +       __be16          payload_len;
> +       __u8            nexthdr;
> +       __u8            hop_limit;
> +       struct in6_addr saddr;
> +       struct in6_addr daddr;
> +};
> +
> +#endif /* __NET6_H__ */
> --
> 2.5.3
>
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