From patchwork Fri Jan 25 00:56:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [U-Boot,RFC,v3,1/7] Initial net6.h From: Chris Packham X-Patchwork-Id: 215512 Message-Id: <1359075418-9031-2-git-send-email-judge.packham@gmail.com> To: u-boot@lists.denx.de, Joe Hershberger Cc: Chris Packham , Kim Phillips Date: Fri, 25 Jan 2013 13:56:52 +1300 From: Chris Packham Has the definition of an IPv6 address and IPv6 header. It may make sense to separate the v4 support from net.h (or to include this in net.h). Signed-off-by: Chris Packham --- Changes in v3: - add reviewed-by from Kim Phillips Changes in v2: - use __be16/__be32 - add ipv6_addr_v4mapped and ipv6_addr_is_isatap inline functions include/net6.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 include/net6.h diff --git a/include/net6.h b/include/net6.h new file mode 100644 index 0000000..03bccb2 --- /dev/null +++ b/include/net6.h @@ -0,0 +1,43 @@ +/** + * Simple IPv6 network layer implementation. + * + * Based and/or adapted from the IPv4 network layer in net.[hc] + * + * (C) Copyright 2013 Allied Telesis Labs NZ + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. + */ +#ifndef __NET6_H__ +#define __NET6_H__ + +typedef union ip6addr_t { + __u8 u6_addr8[16]; + __be16 u6_addr16[8]; + __be32 u6_addr32[4]; +} IP6addr_t; + +/** + * 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 " +#endif + __u8 flow_lbl[3]; + __be16 payload_len; + __u8 nexthdr; + __u8 hop_limit; + IP6addr_t saddr; + IP6addr_t daddr; +}; + +#endif /* __NET6_H__ */