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path: root/src/plugins/linux-cp/lcp_interface_sync.c
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2024-01-10linux-cp: Fix looping netlink messagesPim van Pelt1-5/+6
Signal when consuming a batch of netlink messages, in order to inhibit lcp_sync from generating new netlink messages. This avoids link up/down state changess from triggering an infinite loop. Do this in the regular case of nl_route_process_msgs() and in the special case of re-synchronizing in lcp_nl_recv_dump_replies(). Type: fix Change-Id: I419d3f9aa350c119b3778b644c65165cb4cc1bef Signed-off-by: Pim van Pelt <pim@ipng.nl>
2023-02-02linux-cp: fix auto-sub-intStanislav Zaikin1-1/+1
lcp_itf_pair_pool could grew during sub-interface creation. Type: fix Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com> Change-Id: Ideafe392f9bb2b418ce9d6faa4f08dfe26f4a273
2022-01-18linux-cp: fix possible null derefPim van Pelt1-0/+2
Found by coverity as defect id 243763 Signed-off-by: Pim van Pelt <pim@ipng.nl> Type: fix Change-Id: Idbada5528a1f2625f6498072d538edf306268b6d
2022-01-11linux-cp: Add VPP->Linux synchronizationPim van Pelt1-0/+442
Part 1 -- notes in https://ipng.ch/s/articles/2021/08/13/vpp-2.html Add the ability for VPP to copy out (sync) its state from the dataplane to Linux Interface Pairs, when they exist. Gated by a configuration flag (linux-cp { lcp-sync }), and by a CLI option to toggle on/off, synchronize the following events: - Interface state changes - Interface MTU changes - Interface IPv4/IPv6 address add/deletion In VPP, subints can have any link state and MTU, orthogonal to their phy. In Linux, setting admin-down on a phy forces its children to be down as well. Also, in Linux, MTU of children must not exceed that of the phy. Add a state synchronizer which walks over phy+subints to ensure Linux and VPP end up in the same consistent state. Part 2 -- notes in https://ipng.ch/s/articles/2021/08/15/vpp-3.html Add the ability for VPP to autocreate sub-interfaces of existing Linux Interface pairs. Gated by a configuration flag (linux-cp { lcp-auto-subint }), and by a CLI option to toggle on/off, synchronize the following event: - Sub-interface creation (dot1q, dot1ad, QinQ and QinAD) A few other changes: - Add two functions into netlink.[ch] to delete ip4 and ip6 addresses. - Remove a spurious logline (printing MTU) in netlink.c. - Resolve a TODO around vnet_sw_interface_supports_addressing() Type: improvement Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I34fc070e80af4013be58d7a8cbf64296cc760e4e Signed-off-by: Pim van Pelt <pim@ipng.nl>