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cf6e007eef
implement sctp_error to let nf_conntrack_in validate crc32c on the packet transport header. Assign skb->ip_summed to CHECKSUM_UNNECESSARY and return NF_ACCEPT in case of successful validation; otherwise, return -NF_ACCEPT to let netfilter skip connection tracking, like other protocols do. Besides preventing corrupted packets from matching conntrack entries, this fixes functionality of REJECT target: it was not generating any ICMP upon reception of SCTP packets, because it was computing RFC 1624 checksum on the packet and systematically mismatching crc32c in the SCTP header. Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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| README | ||
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.