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IPv6 packet may carry more than one extension header, and IPv6 nodes must accept and attempt to process extension headers in any order and occurring any number of times in the same packet. Hence, there should be no assumption that Segment Routing extension header is to appear immediately after the IPv6 header. Moreover, section 4.1 of RFC 8200 gives a recommendation on the order of appearance of those extension headers within an IPv6 packet. According to this recommendation, Segment Routing extension header should appear after Hop-by-Hop and Destination Options headers (if they present). This patch fixes the get_srh(), so it gets the segment routing header regardless of its position in the chain of the extension headers in IPv6 packet, and makes sure that the IPv6 routing extension header is of Type 4. Signed-off-by: Ahmed Abdelsalam <amsalam20@gmail.com> Acked-by: David Lebrun <david.lebrun@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.