- 04 2月, 2017 1 次提交
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由 David Lebrun 提交于
In the latest version of the IPv6 Segment Routing IETF draft [1] the cleanup flag is removed and the flags field length is shrunk from 16 bits to 8 bits. As a consequence, the input of the HMAC computation is modified in a non-backward compatible way by covering the whole octet of flags instead of only the cleanup bit. As such, if an implementation compatible with the latest draft computes the HMAC of an SRH who has other flags set to 1, then the HMAC result would differ from the current implementation. This patch carries those modifications to prevent conflict with other implementations of IPv6 SR. [1] https://tools.ietf.org/html/draft-ietf-6man-segment-routing-header-05Signed-off-by: NDavid Lebrun <david.lebrun@uclouvain.be> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 11月, 2016 1 次提交
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由 David Lebrun 提交于
Implement minimal support for processing of SR-enabled packets as described in https://tools.ietf.org/html/draft-ietf-6man-segment-routing-header-02. This patch implements the following operations: - Intermediate segment endpoint: incrementation of active segment and rerouting. - Egress for SR-encapsulated packets: decapsulation of outer IPv6 header + SRH and routing of inner packet. - Cleanup flag support for SR-inlined packets: removal of SRH if we are the penultimate segment endpoint. A per-interface sysctl seg6_enabled is provided, to accept/deny SR-enabled packets. Default is deny. This patch does not provide support for HMAC-signed packets. Signed-off-by: NDavid Lebrun <david.lebrun@uclouvain.be> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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