From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Packham Date: Mon, 9 Nov 2015 20:38:50 +1300 Subject: [U-Boot] [RFC PATCH v2 05/11] net: add definition of udp_hdr In-Reply-To: <1447054736-27658-1-git-send-email-judge.packham@gmail.com> References: <1447054736-27658-1-git-send-email-judge.packham@gmail.com> Message-ID: <1447054736-27658-6-git-send-email-judge.packham@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de UDP is the same over IPv4 as it is over other protocols (i.e. IPv6) add a definition of just the UDP header independent of the IPv4 header that it may or may not be combined with. Signed-off-by: Chris Packham --- Ideally struct ip_udp_hdr would be defined as struct ip_udp_hdr { struct ip_hdr ip; struct udp_hdr udp; }; Implementing this touches more code that I really want to at this point. Some of the code that currently uses struct ip_udp_hdr could probably just use struct ip_hdr instead but some care would need to be taken to much such a change. Changes in v2: None include/net.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/include/net.h b/include/net.h index ebed29a..e8bd2b7 100644 --- a/include/net.h +++ b/include/net.h @@ -348,6 +348,18 @@ struct ip_hdr { #define IP_HDR_SIZE (sizeof(struct ip_hdr)) /* + * UDP header. + */ +struct udp_hdr { + __be16 udp_src; /* UDP source port */ + __be16 udp_dst; /* UDP destination port */ + __be16 udp_len; /* Length of UDP packet */ + __be16 udp_xsum; /* Checksum */ +}; + +#define UDP_HDR_SIZE (sizeof(struct udp_hdr)) + +/* * Internet Protocol (IP) + UDP header. */ struct ip_udp_hdr { @@ -368,7 +380,6 @@ struct ip_udp_hdr { }; #define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) -#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) /* * Address Resolution Protocol (ARP) header. -- 2.5.3